JP2023006446A - Range hood - Google Patents

Abstract

To adjust a speed of a gas introduced into an opening to a proper flow speed.SOLUTION: A range hood includes: an air collection part 10 having an airflow guide surface 11 and an opening 12 formed on the airflow guide surface 11; a distributing plate 30 which is along and spaced apart from the airflow guide surface 11; and a blower 50 which suctions a gas from the opening 12 and forcibly exhausts the gas to the outside. The distributing plate 30 has a wind speed adjustment protruding part 31 which is erected to the airflow guide surface 11 side to narrow a space between the distributing plate 30 and the airflow guide surface 11.SELECTED DRAWING: Figure 1

Description

The present invention relates to range hoods.

Conventionally, in this type of invention, as described in Patent Document 1, for example, a hood cover having a concave shape with an open bottom and a bottom surface on the top side, and a rectifying plate extending downward along the bottom surface with a gap therebetween. , and an air blower for forcibly exhausting gas to the outside by sucking gas from a communication port formed in the bottom surface.

JP 2008-180456

By the way, in the above-described prior art, the flow velocity of the gas sucked from around the straightening plate is accelerated by the straightening plate and guided to the communication port.
However, in some cases, a sufficient flow velocity cannot be obtained, and the flow velocity varies depending on the suction points around the current plate.

In view of such problems, the present invention comprises the following configurations.
An airflow guide surface, an air collecting portion having an opening formed in the airflow guide surface, a straightening plate along the airflow guide surface with a gap therebetween, and a blower that sucks gas from the opening and forcibly exhausts it to the outside. and wherein the rectifying plate has a wind speed adjusting convex portion that rises toward the airflow guide surface and narrows the distance from the airflow guide surface.

Since the present invention is configured as described above, it is possible to make the flow velocity of the gas guided to the opening to be appropriate.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows an example of the cooker hood which concerns on this invention. It is the principal part perspective view which looked the same cooker hood from the diagonally downward side. It is a perspective view which shows the state which opened|released the straightening plate about the same cooker hood. It is the figure which looked at the rectifying plate about the cooker hood as front view. It is a perspective view which shows the back side of an airflow adjustment part. It is a perspective view which shows the back side of a current plate. It is the figure which looked at the straightening plate from diagonally upper direction along the surface. It is a principal part side view of the same cooker hood, and the airflow direction is illustrated with the dashed-two dotted line. It is a principal part side view of the same cooker hood, and the irradiation direction of light is illustrated with the two-dot chain line. It is a principal part side view which shows the other example of the cooker hood which concerns on this invention, and the irradiation direction of light is illustrated with the two-dot chain line. It is a principal part side view which shows the other example of the cooker hood which concerns on this invention, and the irradiation direction of light is illustrated with the two-dot chain line. It is a principal part side view which shows the other example of the cooker hood which concerns on this invention, and the airflow direction is illustrated with the dashed-two dotted line. It is a principal part side view which shows the other example of the cooker hood which concerns on this invention, and the airflow direction is illustrated with the dashed-two dotted line.

The present embodiment discloses the following features.
The first feature is an airflow guide surface, an air collecting portion having an opening formed in the airflow guide surface, a rectifying plate along the airflow guide surface with a gap therebetween, and a gas sucked through the opening. and an air blower for forcibly exhausting the air to the outside, and the rectifying plate has a wind speed adjusting projection rising toward the airflow guide surface and narrowing the distance from the airflow guide surface (see FIG. 8).
According to this configuration, the gas drawn between the rectifying plate and the airflow guide surface can be guided to the opening at an appropriate flow velocity.

As a second feature, the wind speed adjusting convex portion includes at least a portion of the opening and at least a portion of the airflow guide surface around the opening when viewed from the direction facing the opening. (See FIG. 4).
According to this configuration, the gas flow velocity can be adjusted more effectively.

As a third feature, the wind speed adjusting convex portion is provided so as to include the entire opening when viewed from the direction facing the opening (see FIG. 4).
According to this configuration, the gas flow velocity can be adjusted more effectively.

As a fourth feature, the rectifying plate has a portion that does not rise toward the airflow guide surface on at least a portion of the peripheral edge side (see FIGS. 3, 6 and 7).
According to this configuration, the portion that does not rise toward the airflow guide surface can be used as a handle portion for maintenance or the like.

As a fifth feature, the rectifying plate has a peripheral portion formed of a plurality of side portions, and at least one side of the plurality of side portions has a portion that does not rise toward the airflow guide surface (Fig. 3, see FIGS. 6 and 7).
According to this configuration, it is possible to secure a wider portion that can be used as a handle for maintenance or the like.

As a sixth feature, the rectifying plate is movably provided, and a movement operation part for moving the rectifying plate is provided at a portion lower than the tip of the wind speed adjusting convex portion ( 3 and 6).
According to this configuration, it is possible to improve the workability when operating the movement operation section to move the rectifying plate.

As a seventh feature, the rectifying plate is provided so as to rotate about a rotating shaft along the airflow guide surface, and the wind speed adjusting convex portion is arranged on the centrifugal direction side of the rotating shaft. (See Figure 3).
According to this configuration, the rectifying plate can be rotated to facilitate maintenance, etc., the rectifying plate can be prevented from contacting the airflow guide surface during rotation, and the range of motion of the rectifying plate can be relatively wide. can be secured.

As an eighth feature, the wind speed adjusting protrusion has an inwardly inclined surface on the peripheral edge side (see FIGS. 3, 6 and 7).
According to this configuration, it is possible to form an airflow accelerated by the inclined surface on the peripheral edge side of the wind speed adjusting convex portion. Therefore, it is possible to prevent oil, water, and the like from adhering to the peripheral edge side of the wind speed adjusting convex portion.

As a ninth feature, the wind speed adjusting convex portion has a flat surface along the air flow guide surface (see FIGS. 3, 6 and 7).
According to this configuration, it is possible to suppress the disturbance of the gas flow guided to the opening on the back side of the rectifying plate.

<First Embodiment>
Next, specific embodiments having the above characteristics will be described in detail with reference to the drawings.
The cooker hood 1 includes an air collecting portion 10 that guides the gas flowing along the airflow guide surface 11 to the opening 12 formed in the airflow guide surface 11, and an airflow adjustment portion 20 that adjusts the flow of the gas toward the opening 12. a rectifying plate 30 which is arranged with a gap from the airflow guide surface 11 apart from the airflow adjusting portion 20 and which forms the suction port 10a between the airflow guide surface 11 and the airflow guide surface 11; It comprises a housing 40 covering a crossing gas flow path, and an air blower 50 provided in the gas flow path and forcibly exhausting the gas sucked from the opening 12 to the outside through an exhaust port 40b1.

The air collecting portion 10 is provided with an approximately concave airflow guide surface 11 which opens obliquely downward and has a bottom portion 11a. This air collecting section 10 is sometimes called a hood section.

The airflow guide surface 11 includes an inclined flat bottom portion 11a, an upper piece portion 11b bent forward at the upper end side of the bottom portion 11a, and a lower piece portion 11c bent downward at the lower end side of the bottom portion 11a. integrally constructed from
An oil drain plate introduction port 11c1 for inserting an oil drain plate 37, which will be described later, is opened in a laterally long rectangular shape and penetrates through the lower piece portion 11c.

The airflow guide surface 11 guides the gas flowing from the suction ports 10a on the left and right sides and the upper side to the opening 12 near the center of the bottom 11a.

The opening 12 is a circular through-hole provided near the center of the bottom 11a, and sucks gas guided along the airflow guide surface 11 toward the center of the airflow guide surface 11. As shown in FIG.
The inner edge of this opening 12 is curved toward the interior of the housing 40 .

An oil collecting device 70 (see FIG. 3) that collects oil by rotating a disk-shaped filter is provided in the housing 40 at a position close to the inner edge of the opening 12 . This oil collector 70 can be replaced with another structure or omitted.

The airflow adjuster 20 is a hollow box-shaped member elongated in the left-right direction, and is positioned substantially parallel to the upper portion of the bottom portion 11a with a gap therebetween. The airflow adjusting portion 20 is fixed to the bottom portion 11a at one end side and the other end side in the longitudinal direction via brackets 21 having substantially a column shape.

A gap between the upper edge of the airflow adjusting portion 20 and the bottom portion 11a, a gap between the left edge sides of the airflow adjusting portion 20 and the straightening plate 30 and the bottom portion 11a, and a gap between the right edge sides of the airflow adjusting portion 20 and the straightening plate 30 and the bottom portion 11a. function as suction ports 10a for sucking external gas.

The distance between the airflow adjusting portion 20 and the bottom portion 11a is appropriately adjusted so as to accelerate the gas sucked into the suction port 10a.

The rear surface of the airflow adjusting portion 20 has a convex portion 20a narrowed between itself and the bottom portion 11a on the center side in the left-right direction, and recessed on both sides of the convex portion 20a so as to widen the space between it and the bottom portion 11a. It has recesses 20b, 20b. In other words, the rear surface of the airflow adjusting portion 20 is formed in a substantially convex shape having a convex portion 20a and concave portions 20b, 20b on both sides (see FIG. 5).

In addition, an inwardly inclined surface 20 c is formed at the upper end of the airflow adjusting portion 20 . This inclined surface 20c suppresses the occurrence of turbulence in the gas flow that is sucked into and accelerated between itself and the bottom portion 11a.

Also, the airflow adjusting section 20 functions as an electrical component mounting section for mounting electrical components such as the first illumination section 61 and the operating section 62 (see FIG. 9).

In addition, the airflow adjusting unit 20 and the rectifying plate 30 described later function as a light shielding member that blocks direct irradiation of the light emitted from the first lighting unit 61 downward to the cooker hood 1 .

The first lighting section 61 is an elongated light emitter extending in the width direction of the airflow adjusting section 20, and is configured by, for example, a plurality of LEDs.

The first lighting section 61 is mounted on the back side inside the airflow adjusting section 20 so as to emit light between the airflow adjusting section 20 as a light shielding member and the airflow guide surface 11 .
In more detail, the first lighting section 61 is fixed inside the airflow adjusting section 20 via a bracket or the like, and its irradiation direction is inclined toward the suction port 10a on the upper side. The light of the first lighting section 61 is emitted from the rear surface of the airflow adjusting section 20 and illuminates the airflow guide surface 11 (see FIG. 9).

A translucent first translucent cover 63 is provided in the airflow adjusting section 20 so as to be positioned on the irradiation direction side of the first lighting section 61 .
The first light-transmitting cover 63 is made of a light-transmitting plate-shaped member such as transparent, colored transparent, or translucent, and is formed in an elongated shape extending in the width direction of the airflow adjusting section 20 . It is fixed so as to be substantially flush (see FIG. 5).
The material of the first light-transmitting cover 63 may be glass, a heat-resistant and flame-retardant synthetic resin material, or the like.

The first light-transmitting cover 63 can prevent oil, moisture, foreign matter, and the like from adhering to the first lighting unit 61 , and thus can reduce failures of the first lighting unit 61 .

The operation unit 62 includes an electronic circuit 62a for turning on/off the first lighting unit 61 and adjusting the illuminance, a plurality of operation switches 62b, and the like.
The electronic circuit 62 a is included in the airflow adjusting section 20 .
The operation switch 62b is a capacitive type switch that is electrostatically turned on and off when the user's finger comes into contact with it so that the user can operate it from below. As another example of the operation switch 62b, a pressure sensitive type switch that is exposed on the surface side of the airflow adjusting section 20 and is operated by pressing may be used.

While the first lighting unit 61 is for indirect lighting, the range hood 1 is also provided with a second lighting unit 65 that directly illuminates the area below the range hood 1 .
The second lighting section 65 is mounted inside the housing 40 via a bracket or the like on the back side of the upper portion of the airflow guide surface 11 (the upper piece portion 11b in the illustrated example) (see FIG. 2).
A second translucent cover 66 is provided on the irradiation direction side of the second illumination unit 65 so as to be substantially flush with the upper piece 11b.

The second illumination section 65 and the second light-transmitting cover 66 are elongated along the width direction of the airflow guide surface 11 .
Materials, parts, and the like that constitute the second lighting section 65 and the second light-transmitting cover 66 may be the same as those of the first lighting section 61 and the first light-transmitting cover 63 described above.

In addition, the rectifying plate 30 is positioned below the airflow adjusting portion 20 so as to follow the bottom portion 11a of the airflow guide surface 11 with a space therebetween, and is flush with the surface of the airflow adjusting portion 20. They are arranged side by side (see FIG. 1).
The rectifying plate 30 is a substantially rectangular plate-like member in plan view, and is formed longer than the airflow adjusting portion 20 in the direction of inclination along the bottom portion 11a. The surface area of the rectifying plate 30 in the direction along the bottom portion 11a is larger than the surface area of the airflow adjusting portion 20 in the same direction.

The obliquely lower end surface of the airflow adjusting portion 20 is in surface contact with the end surface of the opposed straightening plate 30 . By doing so, in the cooker hood 1, a gap that serves as a suction port is not formed between the airflow adjustment unit 20 and the straightening plate 30, and the connection portion between the airflow adjustment unit 20 and the straightening plate 30 improve the aesthetics of
As another example, the airflow adjusting section 20 and the rectifying plate 30 may be connected by a line.

On the rear surface of the rectifying plate 30, a wind speed adjusting convex portion 31 is provided that rises toward the airflow guide surface 11 side (more specifically, toward the bottom portion 11a) and narrows the distance from the airflow guide surface 11. As shown in FIG.
The straightening plate 30 is configured to rotate about a horizontal rotating shaft 34a along the airflow guide surface 11, and the wind speed adjusting convex portion 31 is arranged on the centrifugal direction side of the rotating shaft 34a.

The air velocity adjusting convex portion 31 has a portion on the central side of the rectifying plate 30 that protrudes toward the airflow guide surface 11 in a convex shape, and has a flat surface shape along the airflow guide surface 11 at the tip surface. is formed in
According to the illustrated example, the protrusion height of the wind speed adjusting protrusion 31 is substantially the same as the protrusion height of the protrusion 20 a of the airflow adjusting section 20 .

A sloped surface 31a that slopes inward toward the tip surface is provided on the peripheral edge side of the wind speed adjusting convex portion 31 . According to the illustrated example, the inclined surface 31a is formed by forming the side surface of the wind speed adjusting convex portion 31 into a flat surface shape that slopes inward toward the tip of the wind speed adjusting convex portion 31 . This inclined surface 31a suppresses turbulence in the airflow directed from the side into the suction port 10a.

In addition, when viewed from the direction facing the opening 12, the wind speed adjusting convex portion 31 includes at least a portion of the opening 12 and at least a portion of the airflow guide surface 11 (specifically, the bottom portion 11a) around the opening 12. provided to include a part. In other words, when viewed from the direction facing the opening 12, the wind speed adjusting convex portion 31 is positioned relative to at least a portion of the opening 12 and at least a portion of the airflow guide surface 11 around the opening 12. provided so as to overlap.
In particular, according to a preferred example of the present embodiment, the wind speed adjusting convex portion 31 is arranged so as to include the entire opening 12 when viewed from the direction facing the opening 12 (see FIG. 4). ).
With this arrangement, the gas sucked into the opening 12 can be uniformly and efficiently accelerated over the entire periphery of the opening 12 .

At least a portion of the peripheral edge side of the rear surface of the rectifying plate 30 is provided with a corner-side low surface portion 32 that rises toward the airflow guide surface 11 and is lower than the tip surface of the wind speed adjusting convex portion 31 (see FIG. 3). As another example, a configuration in which the corner side lower surface portion 32 is not raised is also possible.
According to the illustrated example, the corner-side lower surface portions 32 are provided on two upper corner sides of the current plate 30 (in other words, on the centrifugal direction side with respect to the rotating shaft 34a). Each corner side low surface portion 32 is formed in a flat surface shape that is lower than the tip of the wind speed adjusting convex portion 31 .

The two corner side lower surface portions 32, 32 are respectively provided with a movement operation portion 35 for manually rotating and moving the rectifying plate 30. As shown in FIG.
The movement operation portion 35 of the illustrated example includes a bracket 35a rising from the corner side lower surface portion 32, and a screw-like member 35b rotatably inserted into the bracket 35a.
The threaded member 35b is inserted through the bracket 35a with the threaded portion directed inward (toward the wind speed adjusting convex portion 31). The threaded portion is screwed into a threaded member 36 (see FIG. 3) projecting from the bottom portion 11a.

Note that other examples of the movement operation unit 35 include a mode in which the movement operation unit 35 is engaged with and disengaged from the airflow guide surface 11 by a push button operation or other operation, or a movement operation by a push button operation or other operation. It is possible to apply a structure other than the illustrated example, such as a mode in which the portion 35 is attached to and detached from the airflow guide surface 11 .

In addition, the rectifying plate 30 has a peripheral portion composed of a plurality of side portions, and at least one side of the plurality of side portions is provided with a side-side low surface portion 33 that does not rise toward the airflow guide surface 11 ( See Figure 3).
According to the illustrated example, the side low surface portion 33 is continuous over the entire peripheral portion of the side low surface portion 33 . The side-side low surface portion 33 is formed in a flat surface shape that is lower than the tip of the wind speed adjusting convex portion 31 and lower than the corner-side low surface portion 32 . As another example, the side-side low surface portion 33 is flush with the corner-side low surface portion 32 , or the side-side low surface portion 33 is lower than the tip of the wind speed adjusting convex portion 31 and is lower than the corner-side low surface portion 32 . It is also possible to adopt a mode in which the height is also raised.

Hinge 34 is attached to each of the left and right sides of the side low surface portion 33 corresponding to the lower side of the current plate 30 (see FIG. 6). One piece of the hinge 34 that rotates about the rotation shaft 34 a is attached to the side low surface portion 33 , and the other piece is attached to the airflow guide surface 11 .

According to the illustrated example, the shape extending from the left and right side low surface portions 33, 33 on the back surface of the straightening plate 30 to the wind speed adjusting convex portion 31 is the shape extending from the concave portions 20b, 20b on both sides to the convex portion 20a on the back surface of the airflow adjusting portion 20. is substantially the same as (see FIGS. 5 and 6).

An oil drain plate 37 is connected to the lower edge of the straightening plate 30 .
The oil drain plate 37 is formed in a curved shape extending from the lower end side of the flow straightening plate 30 toward the inside of the oil drain plate inlet 11c1 below the airflow guide surface 11 .
Oil and water adhering to the back side of the straightening plate 30 enter the back side of the airflow guide surface 11 along the oil drain plate 37 and are stored in the concave oil reservoir 41 provided on the lower end side of the housing 40 .

Further, the housing 40 has a suction chamber 40a located on the back side of the airflow guide surface 11 and a blower chamber 40b communicating above the suction chamber 40a. , through the suction chamber 40a and the blower chamber 40b, and discharged from the exhaust port 40b1 on the upper end side.

According to the illustrated example, the suction chamber 40a is formed in the shape of a horizontal triangular prism, and the front, rear, left, and right surfaces and the upper surface are covered with a plurality of panels. Among these panels, the surface of the panel exposed to the front constitutes the airflow guide surface 11 . An opening (not shown) is provided in the upper panel 40a1, and a panel constituting the blower chamber 40b is connected so as to communicate with the opening.

The oil collecting device 70 described above is provided in the suction chamber 40a. The gas that has been sucked into the opening 12 and passed through the oil collector 70 is led to the blower chamber 40b.

The front, rear, left, and right surfaces and the upper surface of the blower chamber 40b are covered with panels. A tubular exhaust port 40b1 is connected to the upper end side of these panels so as to communicate with the inside of the fan chamber 40b.

A blower 50 is provided in the blower chamber 40b.
The blower 50 is a sirocco fan according to the illustrated example, and discharges the gas sucked from the front to the upper exhaust port 40b1.
As another example of the blower 50, it is possible to use a blower other than the above, such as a propeller fan.

Next, the characteristic functions and effects of the range hood 1 having the above configuration will be described in detail.
When power is supplied and the blower 50 rotates, the cooker hood 1 forms an airflow from the suction port 10a toward the exhaust port 40b1 through the opening 12 .
In more detail, gas (for example, air, smoke, etc.) from the left, right, and upper suction ports 10a passes between the airflow adjusting portion 20, the rectifying plate 30, and the airflow guide surface 11, and is guided to the opening 12. .
At this time, the gas is rapidly accelerated by passing through the gap narrowed by the wind speed adjusting convex portion 31 of the rectifying plate 30 and the convex portion 20 a of the airflow adjusting portion 20 . Therefore, gas around the cooker hood 1 is sucked into the suction port 10a and efficiently led to the opening 12. - 特許庁
The gas that has entered the opening 12 passes through the suction chamber 40a and the blower chamber 40b in the housing 40 and is forcibly exhausted from the exhaust port 40b1.

Incidentally, according to the illustrated example, the projection height of the wind speed adjusting convex portion 31 of the current plate 30 and the projection height of the convex portion 20a of the airflow adjusting portion 20 are substantially the same. It is possible to change the height of 20a to one having a different height to adjust the speed of the gas sucked from the upper suction port 10a.

Further, according to the above-described embodiment, when dirt adheres due to long-term use, the user loosens the screw-like member 35b and touches the recessed portions such as the corner-side low surface portion 32 and the side-side low surface portion 33 with fingers. is applied, the rectifying plate 30 is rotated to be opened, and the rear side of the rectifying plate 30 and the airflow guide surface 11 can be easily cleaned.

Further, when the operation switch 62b is operated to turn on the first illumination portion 61, part of the light emitted from the first illumination portion 61 passes through the first translucent cover 63 and reaches the airflow guide surface 11. Head. Further, this light is reflected by the airflow guide surface 11 and directed to the outside of the suction port 10a (see FIG. 9).
The light emitted from the first lighting section 61 and directed directly downward is blocked by the airflow adjusting section 20 and the rectifying plate 30 as light blocking members.

Therefore, when the 1st lighting part 61 light-emits, it can obtain the moderate brightness which is not too bright, and by extension, the aesthetic appearance of the said cooker hood 1 can be improved. Moreover, since the airflow adjusting section 20 and the rectifying plate 30 function as light shielding members, it is possible to prevent the user from directly looking at the first lighting section 61 and feeling dazzled.

Further, when the stove or the like below the cooker hood 1 is made brighter, the second lighting section 65 may be turned on.

In addition, according to the cooker hood 1 having the above configuration, since the airflow adjusting portion 20 is used as the electrical component mounting portion, a large space for mounting the electrical components is secured in the frame-shaped portion around the air collecting portion 10 or the like. I can do without it.
Therefore, design limitations in designing the range hood 1 can be reduced.

<Second embodiment>
Next, other embodiments according to the present invention will be described. In addition, since the embodiment shown below is obtained by partially changing the cooker hood 1 having the above configuration, the modified part will be mainly described in detail, and overlapping detailed description will be omitted.

In the range hood 2 shown in FIG. 10 , the electrical components such as the first lighting unit 61 and the operation unit 62 and the first light-transmitting cover 63 are not provided in the airflow adjustment unit 20, but are provided in the straightening plate 30. .

In this cooker hood 2, the rectifying plate 30 has a first lighting section 61 fixed therein via a bracket or the like, and a tip surface of the wind speed adjusting convex section 31 is provided on the irradiation direction side of the first lighting section 61. The first light-transmitting cover 63 is fixed so as to be flush with. The first lighting section 61 is fixed so as to illuminate the airflow guide surface 11 with its radiation direction inclined toward the suction port 10a on the upper side.
Further, the rectifying plate 30 has an operating portion 62 including an electronic circuit 62a, an operating switch 62b, etc. fixed therein, and the operating switch 62b is exposed on the surface side.

Therefore, according to the range hood 2 shown in FIG. It is possible to prevent people from directly looking at the first lighting unit 61 and feeling dazzling.
In addition, it is not necessary to secure a large space for mounting electrical components in the frame-shaped portion around the air collecting portion 10, and in turn, design limitations in designing the cooker hood 1 can be reduced. be able to.

<Third embodiment>
In the range hood 3 shown in FIG. 11, the electrical components such as the first lighting unit 61 and the operation unit 62 and the first light-transmitting cover 63 are not provided on the airflow adjustment unit 20 and the rectifying plate 30, but on the airflow guide surface 11. wearing it.

The airflow guide surface 11 of the cooker hood 3 fixes the first lighting part 61 to the back side of the bottom part 11a via a bracket or the like, and the irradiation direction side of the first lighting part 61 is arranged so as to be flush with the surface of the bottom part 11a. The first translucent cover 63 is fixed to. The first lighting unit 61 directs the irradiation direction toward the inner surface of the airflow adjusting unit 20 so as to incline toward the suction port 10a on the upper side.

Therefore, the light of the first illumination section 61 is emitted from the airflow guide surface 11 and illuminates the rear surface of the airflow adjustment section 20 as a light shielding member. A portion of the light reflected by the back surface of the airflow adjusting section 20 leaks to the outside from the suction port 10a.

Further, the airflow guide surface 11 has an operation unit 62 including an electronic circuit 62a, an operation switch 62b, etc., fixed on the back side of the surface positioned above the airflow adjustment unit 20, and the operation switch 62b is exposed on the surface side. ing.
In addition, the operation part 62 can also be provided in the upper piece part 11b like the said range hood 1. As shown in FIG.

Therefore, according to the cooker hood 3 shown in FIG. 11, like the cooker hood 1, the first translucent cover 63 can be made to function as indirect lighting, and design restrictions due to mounting of electrical components can be reduced. can be done.

<Fourth embodiment>
The cooker hood 4 shown in FIG. 12 has the airflow adjusting section 20 inclined with respect to the straightening plate 30 . This airflow adjusting portion 20 is fixed to the airflow guide surface 11 by a bracket 21 .
More specifically, the upper end side of the airflow adjuster 20 is inclined forward with respect to the surface of the current plate 30 . The lower side of the airflow adjusting section 20 is in linear contact with the upper side of the straightening plate 30 .
Therefore, the distance between the airflow adjusting portion 20 and the bottom portion 11a gradually narrows from the upper suction port 10a toward the opening portion 12. As shown in FIG.

Therefore, according to the cooker hood 4 shown in FIG. 12, as with the cooker hood 1, the gas sucked from the left and right sides and the upper suction port 10a can be accelerated and efficiently guided to the opening 12. .
In particular, in this range hood 4, the suction capacity of the upper suction port 10a is greater than the suction capacity of the left and right side suction ports 10a, 10a. , the smoke and the like can be efficiently sucked through the upper suction port 10a.

<Fifth embodiment>
The cooker hood 5 shown in FIG. 13 is provided with a gap s between the airflow adjusting section 20 and the rectifying plate 30 so that the gas can be sucked.
That is, the airflow adjusting portion 20 is fixed to the airflow guide surface 11 by the bracket 21 while being separated from the current plate 30 .

According to the cooker hood 5 shown in FIG. 13, in addition to the suction ports 10a on the left and right sides and the upper part, gas is sucked from the gap s, so that the suction capacity on the upper side in the air collecting part 10 can be improved. can be done. Therefore, like the range hood 4, it is useful in situations where a relatively large amount of smoke or the like accumulates on the ceiling side.

Although not shown in the modified example, the range hood 2 (see FIG. 10) can be provided with the second illumination unit 65 and the like in the same manner as the range hood 1 described above. Also, the range hoods 4 and 5 (see FIGS. 12 and 13) can be provided with the first illumination section 61 and the second illumination section 65 and the like.

<Other Modifications>
According to the air collecting portion 10 of the above embodiment, the air flow guide surface 11 is formed in a concave shape and the opening 12 is provided in the bottom portion 11a thereof. It is also possible to adopt a mode in which the flat surface is formed and the opening 12 is provided in the flat surface.

Further, according to the air collecting portion 10 of the above-described embodiment, the surface having the opening 12 (the bottom portion 11a in the illustrated example) faces obliquely downward. It is also possible to adopt a mode in which the surface having the .

Further, the wind speed adjusting convex portion 31 of the above embodiment is formed so as to include the entire opening 12 and part of the airflow guide surface 11 around the opening 12 when viewed from the direction facing the opening 12. However (see FIG. 4), as another example of the wind speed adjusting projection 31, when viewed from the direction facing the opening 12, a part of the opening 12 and the airflow guide surface around the opening 12 11 can be formed.

In addition, in the rectifying plate 30 of the above-described embodiment, as a particularly preferable mode, the corner side low surface portions 32 are provided at the upper two corners, and the side low surface portions 33 are provided at all the four side portions. Other examples of the rectifying plate 30 include a mode in which the corner-side lower surface portion 32 is provided only at one corner, and a portion not rising toward the airflow guide surface 11 is provided in a part of the peripheral edge side that is not the corner. It is possible to adopt a mode in which only some side portions are provided with portions that do not rise toward the airflow guide surface 11 side.

In the above-described embodiment, the rectifying plate 30 is rotated about the rotation shaft 34a on the one end side. It is possible to adopt a mode in which it is detachably provided.

In the above-described embodiment, the airflow adjusting section 20 and the rectifying plate 30 are used as a light shielding member that blocks part of the light from the first illumination section 61. As another example, the airflow adjusting section 20 and the rectifying plate 30 are As another member, a light shielding member may be provided along the airflow guide surface 11 with a gap therebetween, and the first illumination section 61 may be provided between the light shielding member and the airflow guide surface 11 so as to emit light.

Further, according to the above-described embodiment, the first illumination section 61 is provided so as to emit light between the light shielding member (the airflow adjusting section 20 and the rectifying plate 30 according to the illustrated example) and the airflow guide surface 11. As another example, it is also possible to provide the first lighting section 61 so as to emit light from the outside between the light shielding member and the airflow guide surface 11 toward the space between the light shielding member and the airflow guide surface 11. .

In the above-described embodiment, the airflow adjusting portion 20 or the rectifying plate 30 is used as an electrical component mounting portion for mounting an electrical component. It is also possible to adopt a mode in which an electrical component mounting portion, which is a member other than 30, is fixed and an electrical component is mounted on this electrical component mounting portion.

In the above-described embodiment, the electrical components such as the first illumination unit 61 and the operation unit 62 are provided on any one of the airflow adjustment unit 20, the rectifying plate 30, and the airflow guide surface 11. Alternatively, the electrical components may be provided at a plurality of portions among the airflow adjusting portion 20, the rectifying plate 30, and the airflow guide surface 11. FIG.

In the above-described embodiment, the airflow is adjusted by using the two members of the airflow adjusting section 20 and the straightening plate 30. In another example, the airflow adjusting section 20 and the straightening plate 30 are integrated. It is possible to adopt a mode in which the airflow is adjusted by a single member or three or more members. Also in this case, the single member and the three or more members can be used as the electrical component mounting portion and the light shielding member, respectively.

In the above embodiment, the electrical components are the first lighting unit 61, the electronic circuit 62a, the operation switch 62b, etc., but other examples of these electrical components include sensors, motors, and other electrical components. It is possible to

Further, in the cooker hood 3 having the above configuration, both the operation portion 62 and the first lighting portion 61 are attached to the airflow guide surface 11, but as another example, the first lighting portion 61 is attached to the airflow guide surface 11 and The operating part 62 may be attached to the airflow adjusting part 20, or conversely, the operating part 62 may be attached to the airflow guide surface 11 and the first illumination part 61 may be attached to the airflow adjusting part 20. is also possible.

Moreover, the present invention is not limited to the embodiments described above, and can be modified as appropriate without changing the gist of the present invention.

1, 2, 3, 4, 5: range hood 10: air collecting part 10a: suction port 11: airflow guide surface 12: opening 20: airflow adjusting part (electrical component mounting part, light shielding member)
30: rectifying plate (electrical component mounting portion, light shielding member)
31: Wind speed adjusting convex portion 32: Corner side lower surface portion 33: Side side lower surface portion 34a: Rotating shaft 35: Movement operation unit 40: Case 40b1: Exhaust port 50: Blower 61: First lighting unit 62: Operation unit 62a : electronic circuit 62b: operation switch 63: first translucent cover 65: second lighting unit s: gap

Claims (9)

An airflow guide surface, an air collecting portion having an opening formed in the airflow guide surface, a straightening plate along the airflow guide surface with a gap therebetween, and a blower that sucks gas from the opening and forcibly exhausts it to the outside. and
The cooker hood, wherein the rectifying plate has a wind speed adjusting projection rising toward the airflow guide surface and narrowing a distance from the airflow guide surface. The wind speed adjusting convex portion is provided so as to include at least a portion of the opening and at least a portion of the airflow guide surface around the opening when viewed from a direction facing the opening. The range hood according to claim 1, characterized by: The cooker hood according to claim 1 or 2, wherein the wind speed adjusting convex portion is provided so as to include the entire opening when viewed from a direction facing the opening. The cooker hood according to any one of claims 1 to 3, wherein the rectifying plate has a portion not rising toward the airflow guide surface on at least a part of the peripheral edge side. 2. The rectifying plate has a peripheral portion formed of a plurality of side portions, and at least one side of the plurality of side portions has a portion that does not rise toward the airflow guide surface. The range hood according to any one of 3 to 3. the rectifying plate is movably provided,
6. The cooker hood according to claim 4, wherein a movement operation part for moving the rectifying plate is provided at a portion lower than the tip of the wind speed adjusting projection. The rectifying plate is provided so as to rotate about a rotating shaft along the airflow guide surface, and the wind speed adjusting convex portion is arranged on the centrifugal direction side of the rotating shaft. The range hood according to any one of claims 1 to 6. The range hood according to any one of claims 1 to 7, wherein the wind speed adjusting projection has an inwardly inclined surface on the peripheral edge side. The cooker hood according to any one of claims 1 to 8, wherein the wind speed adjusting convex portion has a tip surface formed in a flat surface shape along the airflow guide surface.

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