JP7659890B2 - Range hood - Google Patents

Description

The present invention relates to a range hood.

Conventionally, this type of invention, as described in Patent Document 1 for example, includes a range hood that is equipped with a concave hood cover that is open on the bottom and has a bottom on the top, a baffle plate that runs along the bottom at a distance below, and a blower that draws in gas from a communication port formed in the bottom and forcibly exhausts it to the outside.

JP 2008-180456 A

In the above-mentioned conventional technology, lighting that directly illuminates the stove or the like below is provided behind the hood cover.
However, the lighting may be too bright and may spoil the aesthetic appearance.

In view of the above problems, the present invention has the following configuration.
a first lighting unit that emits light between the light shading member and the air flow guide surface, and a blower that draws in gas through the opening and forcibly exhausts it to the outside; a light shading member that is provided along the air flow guide surface with a gap therebetween; and a first lighting unit that is fixed in a position where the light emitted from the first lighting unit is not directly irradiated downward of the range hood .

The present invention is configured as described above, which can improve the aesthetic appearance when lighting is used.

1 is a perspective view showing an example of a range hood according to the present invention. FIG. 2 is a perspective view of the main part of the range hood as viewed from diagonally below. FIG. 2 is a perspective view showing the range hood with the air straightening plate open. FIG. 2 is a front view of the air straightening plate of the range hood. 13 is a perspective view showing the rear side of the airflow adjustment unit. FIG. FIG. 4 is a perspective view showing the rear side of the current plate. FIG. 2 is a view of the straightening plate as viewed obliquely from above along the surface. FIG. 2 is a side view of a main portion of the range hood, with the airflow direction illustrated by a two-dot chain line. FIG. 2 is a side view of a main portion of the range hood, with the direction of light irradiation being illustrated by a two-dot chain line. FIG. 4 is a side view of a main portion showing another example of a range hood according to the present invention, in which the direction of light irradiation is illustrated by a two-dot chain line. FIG. 4 is a side view of a main portion showing another example of a range hood according to the present invention, in which the direction of light irradiation is illustrated by a two-dot chain line. FIG. 4 is a side view of a main portion showing another example of a range hood according to the present invention, in which the airflow direction is illustrated by a two-dot chain line. FIG. 4 is a side view of a main portion showing another example of a range hood according to the present invention, in which the airflow direction is illustrated by a two-dot chain line.

This embodiment discloses the following features.
The first feature is that the device is equipped with an air flow guiding surface, an air collection unit having an opening formed on the air flow guiding surface, and a blower that draws in gas from the opening and forcibly exhausts it to the outside, a light blocking member is provided along the air flow guiding surface with a gap therebetween, and a first illumination unit is provided between the light blocking member and the air flow guiding surface to emit light (see FIG. 9 ).
According to this configuration, a portion of the light emitted from the first illumination section is blocked by the light blocking member, so that it is possible to prevent the first illumination section from being too bright and thus marring the aesthetic appearance.
In addition, the above-mentioned configuration of "emitting light between the light-shielding member and the air flow guiding surface" includes a configuration having an illuminated area only on the back side of the light-shielding member, a configuration having an illuminated area only on the air flow guiding surface, and a configuration having an illuminated area on both the light-shielding member and the air flow guiding surface.

The second feature is that an airflow adjusting section is provided for adjusting the flow of gas toward the opening, and at least a part of this airflow adjusting section is the light blocking member (see FIG. 9).
According to this configuration, the light from the first illumination unit can be blocked by the airflow adjustment unit without the need for a separate light blocking member.

As a third feature, a straightening plate is provided which is arranged with a gap between it and the air flow guide surface and forms an intake port between it and the air flow guide surface, and at least a part of this straightening plate is the light blocking member (see Figures 9 to 11).
According to this configuration, the light from the first illumination unit can be blocked by the rectifying plate without the need for a separate light blocking member.

As a fourth feature, the first illumination section is provided so as to irradiate light toward the air flow guide surface (see FIGS. 9 and 10).
According to this configuration, the light from the first illumination section can be reflected by the air flow guide surface, thereby improving the aesthetic appearance of the range hood.

As a fifth feature, the first illumination section is provided to irradiate light toward a rear surface of the light blocking member (see FIG. 11).
According to this configuration, the light from the first illumination section can be reflected off the rear surface of the light blocking member, thereby improving the aesthetic appearance of the range hood.

As a sixth feature, the first illumination section is provided so as to emit light from the rear surface of the light blocking member (see Figs. 9 and 10).
According to this configuration, the first illumination unit can be easily fixed to a position where direct illumination is not performed.

As a seventh feature, the first illumination portion is provided so as to emit light from the air flow guide surface (see FIG. 11).
According to this configuration, the first illumination section can be fixed more easily.

As an eighth feature, a first light-transmitting cover that transmits light and covers the first lighting section is provided on the irradiation direction side of the first lighting section (see FIGS. 9 to 11).
With this configuration, it is possible to prevent oil, moisture, foreign matter, etc. from adhering to the first illumination unit.

As a ninth feature, a second illumination section that emits light outside between the light blocking member and the air flow guide surface is provided (see FIG. 9).
According to this configuration, it is possible to obtain direct light from the second illumination unit, and it is also possible to increase the illuminance by using the first illumination unit and the second illumination unit simultaneously.

As a tenth feature, the second illumination unit is provided so as to directly illuminate an area below the range hood (see FIG. 9).
With this configuration, the area below the range hood can be directly illuminated by the second lighting section.

<First embodiment>
Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings.
The range hood 1 comprises an air collection section 10 that guides gas flowing along an air flow guide surface 11 to an opening 12 formed in the air flow guide surface 11, an air flow adjustment section 20 that adjusts the flow of gas toward the opening 12, a straightening plate 30 that is arranged with a gap between it and the air flow guide surface 11 and separate from the air flow adjustment section 20 and forms an intake port 10a between it and the air flow guide surface 11, a housing 40 that covers the gas flow path from the opening 12 to an exhaust port 40b1, and a blower 50 that is provided in the gas flow path and forcibly exhausts gas sucked in from the opening 12 to the outside through the exhaust port 40b1.

The air collection section 10 has a generally concave airflow guide surface 11 that opens diagonally downward and has a bottom 11a, and an opening 12 is formed at the center of the airflow guide surface 11. This air collection section 10 is sometimes referred to as a hood section.

The air flow guide surface 11 is integrally formed of 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.
An oil drain plate inlet 11c1 for inserting an oil drain plate 37 (described later) is opened in a horizontally elongated rectangular shape and penetrates the lower piece 11c.

This airflow guide surface 11 guides the air flowing in from the left, right and upper intake ports 10a 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 11 a, and sucks in the gas that flows along the air flow guide surface 11 and is guided toward the center of the air flow guide surface 11 .
The inner edge of this opening 12 curves toward the inside of the housing 40 .

An oil collector 70 (see FIG. 3) that rotates a disk-shaped filter to collect oil is provided in the housing 40 near the inner edge of the opening 12. This oil collector 70 can be replaced with another structure or omitted.

The airflow adjustment unit 20 is a hollow box-shaped member that is long in the left-right direction and is positioned approximately parallel to and spaced from the upper part of the bottom 11a. One and the other longitudinal ends of the airflow adjustment unit 20 are fixed to the bottom 11a via brackets 21 that are approximately pillar-shaped.

The gap between the upper end edge of the airflow adjustment unit 20 and the bottom 11a, the gap between the left end edges of the airflow adjustment unit 20 and the straightening plate 30 and the bottom 11a, and the gap between the right end edges of the airflow adjustment unit 20 and the straightening plate 30 and the bottom 11a each function as an intake port 10a for sucking in external gas.

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

The back surface of the airflow adjustment unit 20 has a convex portion 20a at the center in the left-right direction that narrows the gap between the bottom portion 11a, and on both sides of the convex portion 20a, there are recessed portions 20b, 20b that are recessed to widen the gap between the bottom portion 11a. In other words, the back surface of the airflow adjustment unit 20 is formed in a generally convex shape with the convex portion 20a and the recessed portions 20b, 20b on both sides (see FIG. 5).

In addition, an inwardly inclined surface 20c is formed at the upper end of the airflow adjustment section 20. This inclined surface 20c prevents turbulence in the flow of gas that is sucked in between the bottom 11a and accelerates.

In addition, the airflow adjustment unit 20 functions as an electrical equipment mounting unit for mounting electrical equipment such as the first lighting unit 61 and the operation unit 62 (see FIG. 9).

In addition, the airflow adjustment unit 20 and the airflow straightening plate 30 described later function as light blocking members that block the light emitted from the first lighting unit 61 from being directly irradiated downward on the range hood 1.

The first lighting unit 61 is a long light-emitting body that spans the width of the airflow adjustment unit 20 and is composed of, for example, multiple LEDs.

The first illumination section 61 is attached to the rear surface side within the air flow adjustment section 20 so as to emit light between the air flow adjustment section 20 as a light blocking member and the air flow guide surface 11 .
More specifically, the first lighting unit 61 is fixed inside the air flow adjustment unit 20 via a bracket or the like, and its irradiation direction is inclined toward the upper air intake port 10a side. The light of the first lighting unit 61 is emitted from the back surface of the air flow adjustment unit 20 and illuminates the air flow guide surface 11 (see FIG. 9).

The airflow adjustment section 20 is provided with a first light-transmitting cover 63 that is light-transmitting and located on the irradiation direction side of the first illumination section 61 .
The first light-transmitting cover 63 is formed from a light-transmitting plate-like member such as transparent, colored transparent, translucent, etc., in a long shape that extends across the width of the airflow adjustment unit 20, and is fixed so as to be approximately flush with the back surface of the airflow adjustment unit 20 (see Figure 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, etc. from adhering to the first lighting unit 61, thereby reducing the occurrence of malfunctions of the first lighting unit 61.

The operation unit 62 is composed of an electronic circuit 62a for turning the first illumination unit 61 on and off and adjusting the illuminance, a plurality of operation switches 62b, and the like.
The electronic circuit 62 a is included in the airflow adjustment unit 20 .
The operation switch 62b is a capacitance type switch that is electrostatically turned on and off when the user's finger touches it so that the user can operate it from below. Another example of this operation switch 62b may be a pressure-sensitive switch that is exposed on the surface side of the airflow adjustment unit 20 and is operated by pressing it.

While the first lighting section 61 provides indirect lighting, the range hood 1 is also provided with a second lighting section 65 that directly illuminates the area below the range hood 1 .
The second illumination section 65 is attached to the rear side of the upper portion of the air flow guiding surface 11 (in the illustrated example, the upper piece portion 11b) inside the housing 40 via a bracket or the like (see FIG. 2).
A second light-transmitting cover 66 is provided on the side of the second illumination unit 65 in the direction of illumination so as to be substantially flush with the upper piece 11b.

The second illumination section 65 and the second light-transmitting cover 66 are provided in an elongated shape along the width direction of the air flow guiding surface 11 .
The materials and parts constituting the second illumination section 65 and the second light-transmitting cover 66 may be similar to those of the first illumination section 61 and the first light-transmitting cover 63 described above.

In addition, the straightening plate 30 is located below the airflow adjustment section 20, along the bottom 11a of the airflow guide surface 11 with a gap therebetween, and is arranged side by side with the airflow adjustment section 20 so that their surfaces are flush with each other (see Figure 1).
The current plate 30 is a member having a generally rectangular plate shape in a plan view, and is formed to be longer in the inclined direction along the bottom 11a than the airflow adjustment unit 20. The surface area of the current plate 30 in the direction along the bottom 11a is larger than the surface area of the airflow adjustment unit 20 in the same direction.

The diagonally lower end face of the airflow adjustment section 20 is in surface contact with the end face of the opposing straightening plate 30. In this manner, in the range hood 1, a gap that could serve as an intake port is not formed between the airflow adjustment section 20 and the straightening plate 30, and the connecting portion between the airflow adjustment section 20 and the straightening plate 30 has a good appearance.
As another example, the airflow adjustment portion 20 and the airflow straightening plate 30 may be connected by a line.

On the back surface of this straightening plate 30, a wind speed adjusting convex portion 31 is provided which rises toward the air flow guide surface 11 side (specifically, the bottom portion 11a side) and narrows the distance between the air flow guide surface 11 and the convex portion 31.
The straightening plate 30 is configured to rotate about a horizontal rotation axis 34a that is aligned with the airflow guide surface 11 as a fulcrum, and the wind speed adjusting protrusion 31 is disposed on the centrifugal direction side of the rotation axis 34a.

The wind speed adjusting convex portion 31 protrudes in a convex shape from the central portion of the rectifying plate 30 toward the air flow guide surface 11 relative to the peripheral edge side, and the tip surface is formed into a flat surface that fits along the air flow guide surface 11.
In the illustrated example, the protruding height of this wind speed adjusting convex portion 31 is substantially the same as the protruding height of the convex portion 20 a of the airflow adjusting portion 20 .

A sloped surface 31a that slopes inward toward the tip surface is provided on the peripheral side of the wind speed adjustment protrusion 31. In the illustrated example, this sloped surface 31a is formed by forming the side surface of the wind speed adjustment protrusion 31 into a flat surface that slopes inward toward the tip of the wind speed adjustment protrusion 31. This sloped surface 31a prevents turbulence from occurring in the airflow flowing from the side toward the inside of the suction port 10a.

Moreover, the wind speed adjusting convex portion 31 is provided so as to include at least a part of the opening 12 and at least a part of the air flow guide surface 11 (specifically, the bottom portion 11a) around the opening 12 when viewed from the direction facing the opening 12. In other words, the wind speed adjusting convex portion 31 is provided so as to overlap at least a part of the opening 12 and at least a part of the air flow guide surface 11 around the opening 12 when viewed from the direction facing the opening 12.
In particular, according to a preferred example of this embodiment, the wind speed adjusting convex portion 31 is disposed so as to include the entire opening 12 when viewed from a direction facing the opening 12 (see FIG. 4).
With this arrangement, the gas sucked into the opening 12 can be accelerated evenly and efficiently around the entire circumference of the opening 12 .

At least a part of the peripheral side of the back surface of the straightening plate 30 is provided with a corner-side lower surface portion 32 that rises lower than the tip surface of the wind speed adjusting protrusion 31 toward the airflow guide surface 11 (see FIG. 3). As another example, it is also possible to configure the corner-side lower surface portion 32 not to rise.
In the illustrated example, the corner-side lower surface portions 32 are provided at two corners on the upper side (in other words, on the centrifugal direction side centered on the rotation axis 34a) of the straightening vane 30. Each corner-side lower surface portion 32 is formed in a flat surface shape lower than the tip of the wind speed adjusting protrusion 31.

A movement operation part 35 for manually rotating and moving the straightening plate 30 is provided on each of the two corner lower surface parts 32, 32.
The movement operation unit 35 in 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 screw-shaped member 35b is inserted into the bracket 35a with the threaded portion facing inward (toward the wind speed adjusting protrusion 31 side). The threaded portion is screwed into a screwed member 36 (see FIG. 3) protruding from the bottom portion 11a.

As other examples of the movement operation unit 35, structures other than those shown in the figures can be applied, such as a configuration in which the movement operation unit 35 is engaged and disengaged from the air flow guide surface 11 by operating a push button or other operations, or a configuration in which the movement operation unit 35 is attached and detached from the air flow guide surface 11 by operating a push button or other operations.

The rectifying plate 30 has a peripheral portion made up of a plurality of sides, and at least one of these sides has a side lower surface portion 33 that does not rise toward the air flow guide surface 11 (see FIG. 3).
According to the illustrated example, the edge side low surface portion 33 is continuous around the entire periphery of the edge side low surface portion 33. This edge 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. Note that, as other examples, it is also possible to make the edge side low surface portion 33 flush with the corner side low surface portion 32, or make the edge side low surface portion 33 lower than the tip of the wind speed adjusting convex portion 31 and higher than the corner side low surface portion 32, etc.

Of these edge side lower surface portions 33, the edge side lower surface portion 33 corresponding to the lower edge of the straightening plate 30 has a hinge 34 attached to both the left and right sides (see FIG. 6). One piece of this hinge 34, which rotates around a rotation shaft 34a as a fulcrum, is fixed to the edge side lower surface portion 33, and the other piece is fixed to the air flow guide surface 11.

In the illustrated example, the shape of the area from the left and right edge lower surfaces 33, 33 on the rear surface of the straightening plate 30 to the wind speed adjustment convex portion 31 is substantially the same as the shape of the area from the recessed portions 20b, 20b on both sides to the convex portion 20a on the rear surface of the airflow adjustment portion 20 (see Figures 5 and 6).

In addition, an oil drain plate 37 is connected to the lower end side of the straightening plate 30 .
The oil drain plate 37 is formed in a curved shape extending from the lower end side of the straightening plate 30 toward the inside of the oil drain plate inlet 11 c 1 on the lower side of the air flow guide surface 11 .
Oil, moisture, etc. adhering to the back side of the straightening plate 30 flows down the oil drain plate 37 to the back side of the air flow guide surface 11 and is stored in a recessed oil reservoir 41 provided on the lower end side of the housing 40.

The housing 40 also has an intake chamber 40a located on the back side of the airflow guide surface 11 and a blower chamber 40b that is connected to the upper part of the intake chamber 40a. The gas sucked in from the opening 12 passes through the intake chamber 40a and the blower chamber 40b and is exhausted from the exhaust port 40b1 on the upper end side.

In the illustrated example, the suction chamber 40a is formed in a horizontal triangular prism shape, and the front, back, left, right, and top surfaces are covered by multiple panels. Of these panels, the surface of the panel exposed to the front forms the airflow guide surface 11. In addition, an opening (not shown) is provided in the top panel 40a1, and the panel that forms the blower chamber 40b is connected so as to communicate with this opening.

The suction chamber 40a is provided with the oil collection device 70 described above. The gas that is sucked into the opening 12 and passes through the oil collection device 70 is led to the blower chamber 40b.

The front, rear, left and right sides and the top of the blower chamber 40b are covered with panels. A cylindrical exhaust port 40b1 is connected to the upper end of these panels so that it communicates with the inside of the blower chamber 40b.

A blower 50 is provided in this blower chamber 40b.
In the illustrated example, the blower 50 is a sirocco fan, which draws in air from the front and expels it to the upper exhaust port 40b1.
As another example of the blower 50, a blower other than the above, such as a propeller fan, can be used.

Next, the characteristic functions and effects of the range hood 1 having the above configuration will be described in detail.
When power is supplied to the range hood 1 and the blower 50 rotates, the range hood 1 generates an airflow that flows from the intake port 10a through the opening 12 toward the exhaust port 40b1.
More specifically, gas (e.g., air, smoke, etc.) from the left, right and upper intake ports 10 a passes between the airflow adjustment section 20 and the straightening plate 30 and the airflow guide surface 11 and is guided to the opening 12 .
At this time, the gas rapidly accelerates as it passes through the gap narrowed by the wind speed adjusting convex portion 31 of the straightening plate 30 and the convex portion 20a of the airflow adjusting portion 20. Therefore, the gas around the range hood 1 is sucked into the suction port 10a and efficiently guided to the opening 12.
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.

In the illustrated example, the protruding height of the wind speed adjusting convex portion 31 of the straightening plate 30 and the protruding height of the convex portion 20a of the airflow adjusting unit 20 are approximately the same, but it is possible to replace the airflow adjusting unit 20 with one having a convex portion 20a with a different height to adjust the speed of the gas sucked in from the upper suction port 10a.

In addition, according to the above embodiment, if dirt accumulates after long-term use, the user can loosen the screw-shaped member 35b, place their fingers on the recessed parts such as the corner side lower surface portion 32 and the edge side lower surface portion 33, and rotate the air straightening plate 30 to open it, allowing the back side of the air straightening plate 30 and the air flow guide surface 11 to be easily cleaned.

Furthermore, when the operation switch 62b is operated to turn on the first illumination unit 61, a part of the light emitted from the first illumination unit 61 passes through the first light-transmitting cover 63 and travels toward the air flow guide surface 11. Furthermore, this light is reflected by the air flow guide surface 11 and travels toward the outside of the air intake 10a (see FIG. 9).
In addition, light emitted from the first illumination unit 61 and heading directly downward is blocked by the airflow adjustment unit 20 and the airflow straightening plate 30, which serve as light blocking members.

Therefore, when the first lighting section 61 emits light, it is possible to obtain a suitable brightness that is not too bright, and thus improve the aesthetic appearance of the range hood 1. Furthermore, because the airflow adjustment section 20 and the straightening plate 30 function as light blocking members, it is possible to prevent users from looking directly at the first lighting section 61 and feeling dazzled.

If you want to brighten up the stove or other area below the range hood 1, you can simply turn on the second lighting unit 65.

Furthermore, according to the range hood 1 having the above-described configuration, since the airflow adjustment section 20 is used as an electrical equipment mounting section, there is no need to secure a large amount of space for mounting electrical equipment in the frame-shaped portion around the air collection section 10, or the like.
Therefore, design restrictions imposed on the range hood 1 can be reduced.

<Second embodiment>
Next, other embodiments of the present invention will be described. Note that since the embodiments described below are partial modifications of the range hood 1 having the above-mentioned configuration, the modifications will be mainly described in detail and overlapping detailed descriptions will be omitted.

The range hood 2 shown in FIG. 10 has electrical components such as the first lighting unit 61 and the operation unit 62, as well as the first light-transmitting cover 63, mounted on the airflow straightening plate 30, rather than on the airflow adjustment unit 20.

In this range hood 2, the straightening plate 30 has a first lighting section 61 fixed thereto via a bracket or the like, and a first light-transmitting cover 63 is fixed on the irradiation direction side of the first lighting section 61 so as to be flush with the tip end face of the air speed adjusting protrusion 31. The first lighting section 61 is fixed so as to illuminate the air flow guide surface 11 with its radiation direction inclined toward the upper suction port 10a side.
Furthermore, the rectifying plate 30 has an operation section 62, which is composed of an electronic circuit 62a and an operation switch 62b, fixed therein, and the operation switch 62b is exposed on the surface side.

Therefore, according to the range hood 2 shown in Figure 10, similarly to the above-mentioned range hood 1, the light emitted from the first lighting section 61, which is indirect lighting, can improve the aesthetic appearance of the range hood 2, and can prevent users, etc. from looking directly at the first lighting section 61 and feeling dazzled.
In addition, there is no need to secure a large amount of space for mounting electrical equipment in the frame-shaped portion surrounding the air collection section 10, which in turn reduces design restrictions when designing the range hood 1.

<Third embodiment>
In the range hood 3 shown in FIG. 11 , electrical components such as a first lighting unit 61 and an operating unit 62 and a first light-transmitting cover 63 are not provided on the air flow adjustment unit 20 and the straightening plate 30 but are attached to the air flow guide surface 11 .

The airflow guide surface 11 of the range hood 3 has a first lighting unit 61 fixed to the back side of the bottom 11a via a bracket or the like, and a first light-transmitting cover 63 fixed to the side of the irradiation direction of the first lighting unit 61 so as to be flush with the surface of the bottom 11a. The irradiation direction of the first lighting unit 61 is tilted toward the upper intake port 10a and faces the inner surface of the airflow adjustment unit 20.

Therefore, the light of the first lighting unit 61 is emitted from the airflow guide surface 11 and illuminates the back surface of the airflow adjustment unit 20, which acts as a light blocking member. Then, a portion of the light reflected by the back surface of the airflow adjustment unit 20 leaks to the outside through the suction port 10a.

In addition, an operating section 62 consisting of an electronic circuit 62a and an operating switch 62b, etc. is fixed to the back side of the air flow guide surface 11, which is located above the air flow adjustment section 20, and the operating switch 62b is exposed on the front side.
In addition, the operating portion 62 can also be provided on the upper portion 11b, similar to the range hood 1 described above.

Therefore, with the range hood 3 shown in FIG. 11, the first light-transmitting cover 63 can function as indirect lighting, similar to the range hood 1 described above, and design restrictions due to the installation of electrical equipment can be reduced.

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

Therefore, according to the range hood 4 shown in FIG. 12, similarly to the range hood 1 described above, the gas sucked in through the suction ports 10a on the left and right sides and on the upper side can be accelerated and efficiently guided to the opening 12.
In particular, with 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, so that even in a situation where a relatively large amount of smoke, etc. accumulates on the ceiling side, the smoke, etc. can be efficiently sucked into the upper suction port 10a.

<Fifth embodiment>
The range hood 5 shown in FIG. 13 has a gap s between the airflow adjustment portion 20 and the air straightening plate 30, through which gas can be sucked in.
That is, the air flow adjustment portion 20 is fixed to the air flow guide surface 11 by the bracket 21 in a state separated from the current plate 30 .

The range hood 5 shown in FIG. 13 draws in gas from the gap s in addition to the left and right side and upper intake ports 10a, which improves the intake capacity of the upper part of the air collection section 10 in particular. Therefore, like the range hood 4 described above, it is useful in situations where smoke and the like tends to accumulate relatively in large amounts on the ceiling side.

In the above modified example, although not shown, the range hood 2 (see FIG. 10) can be provided with a second lighting section 65, etc., in the same manner as the range hood 1. Also, the range hoods 4 and 5 (see FIG. 12 and FIG. 13) can be provided with a first lighting section 61 and a second lighting section 65, etc.

<Other Modifications>
According to the above embodiment of the air collection section 10, the air flow guide surface 11 is formed concavely and an opening 12 is provided at the bottom 11a. However, as another example of the air collection section 10, it is also possible to form the air flow guide surface 11 as a flat surface over the entire surface and provide an opening 12 on the flat surface.

In addition, according to the embodiment of the air collection unit 10 described above, the surface having the opening 12 (the bottom 11a in the illustrated example) faces diagonally downward, but other examples of the air collection unit 10 include a configuration in which the surface having the opening 12 faces directly downward, or a configuration in which the surface having the opening 12 faces directly to the side.

In addition, the wind speed adjusting protrusion 31 in the above embodiment is formed to include the entire opening 12 and part of the air flow guide surface 11 around the opening 12 when viewed from the direction opposite the opening 12 (see Figure 4), but as another example of this wind speed adjusting protrusion 31, it is possible to form it to include part of the opening 12 and part of the air flow guide surface 11 around the opening 12 when viewed from the direction opposite the opening 12.

In addition, as a particularly preferred embodiment of the straightening plate 30 in the above embodiment, a corner side lower surface portion 32 is provided at each of the two upper corners, and an edge side lower surface portion 33 is provided at each of the four sides. However, other examples of this straightening plate 30 include a corner side lower surface portion 32 provided at only one corner, a portion on the peripheral side that is not a corner that does not rise toward the air flow guide surface 11, and a portion on only some sides that does not rise toward the air flow guide surface 11.

In the above embodiment, the straightening plate 30 is rotated around the rotation shaft 34a at one end as a fulcrum, but as another example, it is possible to have the straightening plate 30 slidable or detachable.

In the above embodiment, the airflow adjustment unit 20 and the straightening plate 30 are used as light-shielding members that block part of the light from the first illumination unit 61. As another example, a light-shielding member may be provided as a member separate from the airflow adjustment unit 20 and the straightening plate 30, spaced apart from the airflow guide surface 11, and the first illumination unit 61 may be provided so as to emit light between the light-shielding member and the airflow guide surface 11.

In addition, according to the above embodiment, the first lighting unit 61 is provided to emit light between the light blocking member (in the illustrated example, the airflow adjustment unit 20 and the straightening plate 30) and the airflow guide surface 11. As another example, the first lighting unit 61 can be provided to emit light from the outside between the light blocking member and the airflow guide surface 11 toward the space between the light blocking member and the airflow guide surface 11.

In addition, in the above embodiment, the airflow adjustment unit 20 or the straightening plate 30 is used as an electrical equipment mounting portion for mounting electrical equipment. As another example, it is also possible to fix an electrical equipment mounting portion, which is a member other than the airflow adjustment unit 20 and the straightening plate 30, to the airflow guide surface 11, and mount the electrical equipment on this electrical equipment mounting portion.

In the above embodiment, electrical components such as the first lighting unit 61 and the operation unit 62 are provided on either the airflow adjustment unit 20, the straightening plate 30, or the airflow guide surface 11. However, as an example other than the illustrated example, it is also possible to provide the electrical components on multiple locations on the airflow adjustment unit 20, the straightening plate 30, and the airflow guide surface 11.

In the above embodiment, the airflow is adjusted using two components, the airflow adjustment unit 20 and the rectifying plate 30. As another example, the airflow adjustment unit 20 and the rectifying plate 30 can be integrated into a single component, or the airflow can be adjusted using three or more components. In this case, the single component or the three or more components can be used as the electrical equipment mounting unit or the light blocking member, respectively.

In addition, in the above embodiment, the electrical equipment includes the first lighting unit 61, the electronic circuit 62a, the operation switch 62b, etc., but other examples of the electrical equipment include sensors, motors, and other electrical components.

In addition, in the range hood 3 configured as described above, both the operating unit 62 and the first lighting unit 61 are attached to the airflow guide surface 11, but as another example, it is also possible to attach the first lighting unit 61 to the airflow guide surface 11 and the operating unit 62 to the airflow adjustment unit 20, or conversely, to attach the operating unit 62 to the airflow guide surface 11 and the first lighting unit 61 to the airflow adjustment unit 20.

Furthermore, the present invention is not limited to the above-mentioned embodiments, and can be modified as appropriate without departing from the spirit and scope of the present invention.

1, 2, 3, 4, 5: Range hood 10: Air collection section 10a: Intake port 11: Air flow guide surface 12: Opening 20: Air flow adjustment section (electrical equipment mounting section, light blocking member)
30: Straightening plate (electrical equipment mounting part, light shielding member)
31: Wind speed adjusting convex portion 32: Corner side lower surface portion 33: Side side lower surface portion 34a: Rotation axis 35: Movement operation portion 40: Housing 40b1: Exhaust port 50: Blower 61: First lighting portion 62: Operation portion 62a: Electronic circuit 62b: Operation switch 63: First light-transmitting cover 65: Second lighting portion s: Gap

Claims (10)

an air collection section having an air flow guide surface and an opening formed on the air flow guide surface; and a blower that draws in gas from the opening and forcibly exhausts it to the outside,
A range hood characterized in that a light-blocking member is provided along the air flow guide surface with a gap therebetween, a first lighting unit is provided between the light-blocking member and the air flow guide surface so as to emit light , and the first lighting unit is fixed in a position where the light emitted from the first lighting unit is not directly irradiated downward of the range hood .
The range hood according to claim 1, characterized in that it is provided with an airflow adjustment section that adjusts the flow of gas toward the opening, and at least a part of this airflow adjustment section is the light blocking member. The range hood according to claim 1 or 2, characterized in that it is provided with a straightening plate that is arranged with a gap between it and the airflow guide surface and forms an intake port between it and the airflow guide surface, and at least a part of this straightening plate is the light blocking member. The range hood according to any one of claims 1 to 3, characterized in that the first lighting section is arranged to irradiate light toward the airflow guide surface. The range hood according to any one of claims 1 to 4, characterized in that the first lighting section is arranged to irradiate light toward the back surface of the light blocking member. The range hood according to any one of claims 1 to 5, characterized in that the first lighting section is arranged to emit light from the back surface of the light blocking member. The range hood according to any one of claims 1 to 5, characterized in that the first lighting section is arranged to emit light from the airflow guide surface. The range hood according to any one of claims 1 to 7, characterized in that a first translucent cover that covers the first lighting unit is provided on the side of the illumination direction of the first lighting unit. The range hood according to any one of claims 1 to 8, characterized in that a second lighting section is provided that emits light on the outside between the light blocking member and the airflow guide surface. The range hood according to claim 9, characterized in that the second lighting section is arranged to directly illuminate the area below the range hood.

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