JP7515901B2 - Integrated intake and exhaust hood - Google Patents

Description

The present invention relates to an integrated air intake and exhaust hood that is installed on the ceiling of a kitchen or other space.

Traditionally, in kitchens and other areas, an integrated air intake and exhaust hood has been installed on the ceiling to suck in oily smoke and gases generated in the cooking area and release them to the outside, while also ventilating the room by drawing in air from the outside.

As an example of such an integrated intake and exhaust hood, an integrated intake and exhaust hood 100 as shown in Fig. 8 is known (see Patent Document 1). As shown in Fig. 8, this integrated intake and exhaust hood 100 is composed of a pyramidal exhaust hood 106 with an upper exhaust port 102 and a lower air inlet 104 that are attached to the exhaust duct, and a box-shaped intake hood 112 that is provided to cover the outer periphery of the exhaust hood 106 and has an upper intake port 108 and side and lower air outlets 110 that are attached to the intake duct.

FIG. 8 of JP 2017-36909 A

However, in recent years, the ceilings in which the exhaust ducts and the intake ducts are installed have become higher, and there is a demand for an integrated intake and exhaust hood with a structure suitable for such high ceilings.
For example, in a conventional integrated intake and exhaust hood 100, the air inlet 104 usually needs to be located near the cooking area, but if the ceiling is high, the height (length) from the exhaust outlet 102 to the air inlet 104 needs to be adjusted to match the distance from the ceiling to the cooking area.

In the conventional integrated intake and exhaust hood 100, both the pyramidal exhaust hood 106 and the box-shaped intake hood 112 are extended downwards, but in this case, the work of extending the inclined pyramidal exhaust hood 106 is particularly cumbersome, resulting in high manufacturing costs. In addition, to prevent condensation, the inside of the intake hood 112 and the exhaust hood 106 are sometimes covered with insulating material, but attaching it to a plate with an inclined surface like the pyramidal exhaust hood 106 is cumbersome and expensive.

The present invention was developed in consideration of these circumstances, and the objective of the present invention is to provide a new integrated intake and exhaust hood that can be manufactured easily and at low cost.

As a result of extensive research into solving the above problems, the inventor discovered that by extending the exhaust passage of the exhaust section, which was previously extremely short, and locating the exhaust section below the intake section, and arranging the intake section and exhaust section vertically, it is possible to reduce the complexity and cost of manufacturing, even in cases where the ceiling is high, and thus completed the present invention.

That is, the present invention is as follows.
[1] An integrated intake and exhaust hood that is installed on a ceiling and has an exhaust duct and an intake duct,
an exhaust section including an exhaust passage section attached to the exhaust duct and extending downward, and a box-shaped collection hood section provided at a lower end of the exhaust passage section for collecting smoke generated below;
an air intake section that is provided above the box-shaped collection hood section of the exhaust section and around the exhaust passage section and that discharges the air supplied from the air intake duct into a room;
An integrated intake and exhaust hood comprising:
[2] The integrated air intake and exhaust hood described in [1] above, characterized in that the exhaust section and the air intake section are separated by a partition plate arranged horizontally relative to the ceiling.
[3] The integrated intake and exhaust hood described in [1] or [2] above, characterized in that the intake section is composed of an annular integrated box-shaped body having an insertion hole through which the exhaust passage section of the exhaust section is inserted.
[4] The integrated air intake and exhaust hood described in [1] or [2] above, characterized in that the air intake section is configured to include a plurality of independent box-shaped bodies arranged independently around the exhaust passage section of the exhaust section.
[5] The integrated air intake and exhaust hood according to any one of [1] to [4] above, characterized in that a heat insulating material is laid inside the air intake section.

The integrated intake and exhaust hood of the present invention can be manufactured easily and at low cost.

FIG. 2 is a front view of the integrated air intake and exhaust hood according to the first embodiment of the present invention. FIG. 2 is a plan view of the integrated air intake and exhaust hood shown in FIG. 1 . FIG. 2 is a side view of the integrated intake and exhaust hood shown in FIG. 1 . 4A and 4B are explanatory diagrams of the integrated air intake and exhaust hood shown in FIG. 3, in which FIG. 4A shows the exhaust section and FIG. FIG. 6 is a front view of an integrated air intake and exhaust hood according to a second embodiment of the present invention. FIG. 6 is a plan view of the exhaust-integrated hood shown in FIG. 5 . FIG. 6 is a side view of the integrated air intake and exhaust hood shown in FIG. 5 . FIG. 1 is a schematic cross-sectional view of a conventional integrated air intake and exhaust hood.

The integrated intake and exhaust hood of the present invention is an integrated intake and exhaust hood that is installed on a ceiling having an exhaust duct and an air intake duct, and is characterized by having an exhaust section that is equipped with an exhaust passage section that is attached to the exhaust duct and extends downward, and a box-shaped collection hood section that is installed at the lower end of the exhaust passage section and collects smoke generated below, and an air intake section that is installed above the box-shaped collection hood section of the exhaust section and around the exhaust passage section, and releases air supplied from the air intake duct into the room.

The integrated intake and exhaust hood of the present invention can be manufactured easily and at low cost.
In the case of conventional hoods, the exhaust section and the intake section are separated by the hood inclined portion of the pyramidal exhaust section, and when the ceiling is high, this inclined portion becomes long, making manufacturing complicated and increasing manufacturing costs, but this can be prevented. In other words, in the integrated intake and exhaust hood of the present invention, the intake section and exhaust section are separated into upper and lower parts, and the inclined portion of the exhaust section is short or does not exist, so that the manufacturing process can be simplified and manufacturing costs can be reduced even when the hood is installed in a room with a high ceiling.

In addition, in conventional hoods, when the ceiling is high, the area of the inclined portion where the intake and exhaust sections come into contact becomes large, making the structure prone to condensation. However, in the integrated intake and exhaust hood of the present invention, the area of the inclined portion does not become large, and condensation can be suppressed. In addition, because of the simple structure, processing such as attaching insulation is easy, and costs can be reduced.

The integrated intake and exhaust hood of the present invention can be installed and used in rooms where open flames are used, such as kitchens where the exhaust duct and intake duct are installed in the ceiling.

[Exhaust section]
First, the exhaust portion of the present invention will be described.
The exhaust section is used to exhaust oily smoke and gas generated from heating cooking areas in the kitchen to the outside, and is equipped with an exhaust passage section extending downward from the ceiling and a box-shaped collection hood section provided at the lower end of the exhaust passage section.

(Exhaust passage)
The exhaust passage is a tubular section extending downward from the ceiling, and a box-shaped collecting hood is provided at its lower end. The upper end of the exhaust passage is attached to an exhaust duct provided on the ceiling. Smoke and the like collected from the box-shaped collecting hood is exhausted to the outside from the exhaust duct via the exhaust passage. The cross-sectional shape of the exhaust passage is not particularly limited as long as it can be attached to the exhaust duct, and examples of the shape include polygons such as triangles and rectangles, and circles, with a rectangle being preferred.

The length of the exhaust passage can be set appropriately depending on the height of the ceiling, but is longer than conventional hoods, and is preferably 150 mm or more, more preferably 200 mm or more, even more preferably 250 mm or more, and particularly preferably 300 mm or more. The upper limit is preferably 1000 mm or less, more preferably 800 mm or less, and even more preferably 500 mm or less. The length of the exhaust passage refers to the length from the ceiling to the mounting position of the box-shaped collection hood.

(Box-shaped collection hood)
The box-shaped collecting hood is a means for collecting smoke generated below a kitchen or the like, provided at the lower end of the exhaust passage. The box-shaped collecting hood is, for example, formed in a box shape with an open bottom surface, communicates with the exhaust passage at its upper part, and the open bottom surface forms an air collection port. The cross-sectional shape of the box-shaped collecting hood can be, for example, a polygon such as a triangle or a rectangle, or a circle, with a rectangle being preferred.

The upper plate of the box-type collection hood section is usually a partition separating the intake section and the exhaust section, and this upper plate is preferably arranged at an inclination angle of 10° or less to the ceiling, more preferably at an inclination angle of 5° or less, and particularly preferably arranged substantially horizontally to the ceiling. Note that "horizontally arranged" does not include inclination due to errors during installation, but means that it is arranged horizontally by design. When the upper plate is arranged horizontally, it is particularly easy to manufacture, and since the contact area with the intake section is small, it is possible to suppress the occurrence of condensation and reduce the area for laying the insulation material. Note that the partition separating the intake section and the exhaust section may be a multi-layered structure consisting of the upper plate of the box-type collection hood section and the lower plate of the intake section.

The size of the box-shaped collection hood can be set appropriately depending on the distance from the ceiling to the cooking appliance, but for example, it is preferable that the width (long side) is 1000 to 5000 mm, the depth (short side) is 500 to 2500 mm, and the height is 200 to 2000 mm, more preferably the width is 1200 to 4000 mm, the depth is 600 to 2000 mm, and the height is 300 to 1500 mm, and even more preferably the width is 1500 to 3000 mm, the depth is 750 to 1500 mm, and the height is 500 to 1000 mm.

The box-shaped collection hood section may have a smoke guide hood member inside, the diameter of which decreases from the air collection port toward the communication opening of the exhaust passage section. The shape of the smoke guide member may be, for example, a cone shape, a pyramid shape, etc.

(Auxiliary Means)
The exhaust section may be provided with an auxiliary means for assisting exhaust. Examples of the auxiliary means include smoke induction means for guiding smoke (gas) to the exhaust duct, exhaust amount adjustment means for adjusting the amount of smoke (gas) to the exhaust duct, and oil removal means for removing oil contained in the exhaust. Specifically, the smoke induction means may be a smoke induction hood member provided inside the box-shaped collection hood section, the diameter of which decreases from the air collection port toward the communication opening of the exhaust passage section. Examples of the shape of the smoke induction member may include a cone shape, a pyramid shape, and the like. Examples of the exhaust amount adjustment means may include an adjustable lid that can be opened and closed provided on the exhaust passage section and/or the box-shaped collection hood section, and a straightening plate that blocks a part of the air collection port to increase the exhaust force. Examples of the oil removal means may include a filter.

[Air supply section]
Next, the air intake section of the present invention will be described.
The air intake section is a means for supplying air from the outside into the room, and is provided above the box-shaped collecting hood section of the exhaust section and around the exhaust passage section, and is a means for discharging air supplied from the air intake duct into the room. Note that the air intake section being provided above the box-shaped collecting hood section means that the majority of the air intake section is provided above, and the majority of the air intake section means 80% or more of its volume, preferably 90% or more, and particularly preferably 100%. In addition, it is preferable that the lowest end of the air intake section is located within the upper 1/3 of the exhaust section, and it is preferable that it is located within the upper 1/4.

The shape of the air intake section is not particularly limited, and examples include a box-shaped body such as a rectangular pillar or a cylindrical shape. The air intake section can be, for example, a box-shaped body having an air intake port connected to the air intake duct and an air outlet that is preferably provided on the side and communicates with the room. There may be multiple air intake ports and multiple air outlets.

The air intake section may be provided around the entire exhaust passage section of the exhaust section, or it may be provided around only a portion of the circumference. If the air intake section is provided around only a portion of the circumference of the exhaust section, multiple air intake sections may be provided.

Specifically, a preferred embodiment in which the exhaust passage of the exhaust unit is provided around the entire periphery of the exhaust passage of the exhaust unit is an annular one-piece box-shaped body having an insertion hole through which the exhaust passage of the exhaust unit is inserted, and it is preferable to provide one or more air outlets on the side of the one-piece box-shaped body.
In addition, a preferred embodiment in which the exhaust passage of the exhaust unit is provided around the exhaust passage of the exhaust unit includes a plurality of independent box-shaped bodies disposed independently around the exhaust passage of the exhaust unit. It is preferable that one or more air outlets are provided on the side of each independent box-shaped body.

In order to prevent condensation, it is preferable that at least a portion of the interior of the air intake section and/or exhaust section (the portion in contact with the exhaust section) is covered with a heat insulating material. It is sufficient if the interior of either the air intake section or the exhaust section is covered with a heat insulating material, but it is preferable that the interior of the air intake section is covered with a heat insulating material so that it can be used for a long period of time without adhesion of oil.

Below, one embodiment of the integrated intake and exhaust hood of the present invention will be specifically described with reference to the drawings, but the present invention is not limited to this embodiment.

Here, FIG. 1 is a front view of the integrated intake and exhaust hood according to the first embodiment of the present invention. FIG. 2 is a plan view of the integrated intake and exhaust hood shown in FIG. 1. FIG. 3 is a side view of the integrated intake and exhaust hood shown in FIG. 1. FIG. 4 is an explanatory diagram of the integrated intake and exhaust hood shown in FIG. 3, where (a) shows the exhaust section and (b) shows the intake section. Note that the white arrows in FIG. 4 indicate the flow of smoke and air.

As shown in Figures 1 to 3, the integrated air intake and exhaust hood 1 has an exhaust section 10 that is attached to an exhaust duct installed in the ceiling, and an air intake section 12 that releases air supplied from an air intake duct installed in the ceiling into the room.

As shown in FIG. 4(a), the exhaust section 10 includes an exhaust passage section 14 that extends downward, and a box-shaped collection hood section 16 that is provided at the lower end of the exhaust passage section 14 and collects smoke (gas) generated below.

The exhaust passage section 14 is formed as a cylindrical body with a square cross section, 300 mm wide, 300 mm deep, and 350 mm high, with the exhaust port 18 at its upper end attached to an exhaust duct provided in the ceiling, its lower end connected to the box-shaped collection hood section 16, and the communication opening 20 at the lower end communicating with the box-shaped collection hood section 16.

The box-shaped collection hood section 16 is formed as a box-like body with a rectangular cross section and an open bottom, measuring 2000 mm in width (long side), 1500 mm in depth (short side), and 700 mm in height, and the open part of the bottom forms the air collection port 22.

The exhaust section 10 is equipped with an adjustable lid 24 that can be opened and closed, which is provided on the box-shaped collection hood section 16, and a metal mesh filter 26 that serves as an oil removal means.

As shown in FIG. 4(b), the air intake section 12 is provided above the box-shaped collection hood section 16 and around the exhaust passage section 14, and is a means for discharging the air supplied from the air intake duct into the room. The air intake section 12 has an insertion hole 28 through which the exhaust passage section 14 of the exhaust section 10 is inserted, and is configured as a rectangular columnar annular integrated box body with a width (long side) of 2000 mm, a depth (short side) of 1500 mm, and a height of 300 mm. The air intake section 12 has two air intake ports 30a, 30b attached to the air intake duct, and four air outlets 32a to 32d provided on the sides and communicating with the room. The inside of the air intake section 12 is covered with a glass wool insulation material 34 (hatched area).

The integrated intake and exhaust hood 1 described above has the intake section 12 and exhaust section 10 arranged above and below, and the hood does not have any inclined sections, so even in cases where the ceiling is high, the complexity and cost of manufacturing can be reduced.

Next, the integrated intake and exhaust hood according to the second embodiment of the present invention will be described in detail. This embodiment differs from the first embodiment in that the intake section is configured to include multiple independent box-shaped bodies. In addition, the same reference numerals are used to designate components similar to those of the integrated intake and exhaust hood 1 of the first embodiment, and descriptions thereof will be omitted.
Here, Fig. 5 is a front view of the integrated air intake and exhaust hood according to the second embodiment of the present invention, Fig. 6 is a plan view of the integrated exhaust hood shown in Fig. 5, and Fig. 7 is a side view of the integrated air intake and exhaust hood shown in Fig. 5.

As shown in Figures 5 to 7, in the integrated intake and exhaust hood 2 according to the second embodiment, the two intake sections 36a, 36b are configured as independent box-shaped bodies. That is, the two intake sections 36a, 36b are independently disposed at opposing positions around the exhaust passage section 14 of the exhaust section 10. The intake sections 36a, 36b are formed as rectangular column-shaped boxes with a width of 960 mm, a depth of 420 mm, and a height of 300 mm. The insides of the intake sections 36a, 36b are each covered with glass wool insulation 34 (hatched area).

The box-shaped collection hood section 16 of the exhaust section 10 is provided with a pyramidal smoke guide member 38 that narrows in diameter from the air collection port 22 toward the communication opening 20 of the exhaust passage section 14, allowing smoke to be collected efficiently. The exhaust section 10 is also provided with a straightening plate 40 that blocks part of the air collection port 22, thereby increasing the exhaust force. The smoke guide member 38 and straightening plate 40 of this embodiment are easily installed, reducing the complexity of the work and the increase in costs.

The integrated intake and exhaust hood of the present invention is industrially useful because it can be used to exhaust air from kitchen equipment, etc.

1. Integrated intake and exhaust hood (first embodiment)
2. Integrated intake and exhaust hood (second embodiment)
REFERENCE SIGNS LIST 10 exhaust section 12 air intake section 14 exhaust passage section 16 box-shaped collection hood section 18 exhaust port 20 communication opening 22 air collection port 24 adjustment lid 26 filter 28 insertion hole 30 air intake port 32 air outlet 34 heat insulating material 36 air intake section 38 induction member 40 straightening plate 100 conventional integrated air intake and exhaust hood 102 exhaust port 104 air collection port 106 exhaust hood 108 air intake port 110 air outlet 112 air intake hood

Claims (3)

An integrated intake and exhaust hood that is installed on a ceiling and has an exhaust duct and an intake duct,
an exhaust section including an exhaust passage section attached to the exhaust duct and extending downward, and a rectangular column-shaped box-shaped collection hood section provided at a lower end of the exhaust passage section for collecting smoke generated below;
an air supply section that discharges the air supplied from the air supply duct into a room, the air supply section including a rectangular prism-shaped annular one-piece box body that is provided above the box-shaped collection hood section of the exhaust section and around the exhaust passage section, and that has an insertion hole through which the exhaust passage section of the exhaust section is inserted;
Equipped with
The exhaust section and the intake section are separated by a partition plate arranged horizontally relative to the ceiling,
The air intake section has one or more air outlets on a side surface of the annular integrated box-shaped body, and the lowest end of the air intake section is located within an upper 1/3 of the exhaust section.
An integrated intake and exhaust hood. An integrated intake and exhaust hood that is installed on a ceiling and has an exhaust duct and an intake duct,
an exhaust section including an exhaust passage section attached to the exhaust duct and extending downward, and a box-shaped collection hood section provided at a lower end of the exhaust passage section for collecting smoke generated below;
an air supply section that discharges the air supplied from the air supply duct into a room, the air supply section having a plurality of independent box-shaped bodies that are provided above the box-shaped collecting hood section of the exhaust section and around the exhaust passage section, and that are independently arranged around the exhaust passage section of the exhaust section;
Equipped with
An integrated air intake and exhaust hood, characterized in that the exhaust section and the air intake section are separated by a partition plate that is arranged horizontally relative to the ceiling . 3. The integrated intake and exhaust hood according to claim 1, wherein a heat insulating material is laid inside the intake section.