JP3277250B2 - Range hood filter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter which is detachably attached to a suction port of a range hood.

[0002]

2. Description of the Related Art A range hood is used in a system kitchen as shown in FIG. 1, and is used for sucking exhaust gas containing oil smoke and water vapor generated at the time of cooking and cooking and immediately discharging the exhaust gas to the outside. It is. In this range hood, as shown in FIG. 2, a filter is attached to the suction port of the range hood, and the filter liquefies and captures oily smoke and the like, so that the remaining portion is not excessively contaminated with oil or the like. ing.

[0003] That is, when cooking such as tempura, the oil vaporizes and flies, but if the oil is not captured early and discharged outside, the walls of the room will be contaminated with oil. It is a range hood that discharges to the outside early. If a filter is not provided in such a range hood, the liquefied oil will flow back to the room side through the exhaust duct in the room and stain the walls etc. Generally, in this type of range hood, a filter is provided at a suction port of the range hood to capture a part of the oily smoke so that the above-described dirt is not generated much.

[0004] Many conventional range hood filters of this type have only one or two or more patch plates, lath nets, etc. stacked on top of one another, and have not sufficiently captured oily smoke. This is because if the number of lath nets or the like is too large, trapping of oily smoke becomes excessive, and in some cases, clogging occurs in 4 to 5 days, and air permeability is almost lost. In other words, considering the capture of oil smoke, there is a problem with air permeability, and considering air permeability, it is not possible to sufficiently capture oil smoke, and in any case, there are still enough filters for range hoods. It can be said that there was no.

The inventor of the present invention has conducted various studies on how to make an optimal filter for this type of range hood, and as a result, it is sufficient to make the liquefied and trapped oil smoke flow. He realized that the present invention was completed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made based on the above circumstances, and an object of the present invention is to develop a filter capable of capturing oil smoke and maintaining sufficient air permeability. It is.

That is, the object of the present invention is to
An object of the present invention is to provide a filter for a range hood having a simple structure that does not impair air permeability even when used for a long period of time and that can sufficiently capture oil smoke and the like.

[0008]

In order to solve the above problems, the means adopted by the present invention will be described with reference numerals used in the description of the embodiments to be described later. The filter 10 is detachably attached to the opening 21 and liquefies and captures oil smoke and the like in exhaust gas sucked by the range hood 20. The filter 10 has a large number of meshes. At least two flat filters 11 and 12 each having a flat shape and two flat filters 11 and 12 and a corrugated shape having a large number of meshes, and each corrugated portion 13a intersect with each other. An oil reservoir for fixing the two corrugated filters 13 and the outer peripheral edges of the corrugated filters 13 and 13 and the flat filters 11 and 12 and for flowing or storing liquefied oil smoke or the like. 15 that was constructed by a frame 14 having a a filter 10 'for the range hood 20 wherein.

That is, the filter 10 according to the present invention
Is detachably attached as shown in FIGS. 2 and 3 in a range hood 20 constituting the system kitchen 100 as shown in FIG. 1, and as shown in FIGS. Filter 11 and back flat filter 12
At least two corrugated filters 13 having a number of parallel wave portions 13a are interposed therebetween. As shown in FIG. 6, the two flat corrugated filters 13 and the flat corrugated filter 1 are arranged such that the corrugated portions 13a cross each other.
It is sandwiched between the two.

Of course, each of the front flat filter 11, the rear flat filter 12, and the corrugated filter 13 has a large number of meshes formed by punching or woven wire, and as shown in the embodiment, as shown in the embodiment. Even if there are a total of four of the back flat filter 12 and two corrugated filters 13, they have sufficient air permeability depending on the mesh of each part.

According to the filter 10 of the present invention configured as described above, when the filter 10 is attached to the suction port 21 and the range hood 20 is operated, the exhaust gas generated in the gas stove 30 passes through each mesh, Oil smoke and water vapor are sucked and discharged. At this time, the oil smoke is liquefied when passing through each mesh, and is captured by each mesh and the like.

If the oily smoke is trapped and liquefied, the mesh of each corrugated filter 13 will normally be clogged as it is, impairing the function of the filter 10. That is not the case with the inventive filter 10. Because each corrugated filter 1
3 has a large number of wave portions 13 as shown in FIG.
This is because, since a is formed in parallel, the oil liquefied along each wave portion 13a flows into the oil storage passage 15 of the frame 14.

In the present invention, at least two corrugated filters 13 are used, and the corrugated portions 13a of each corrugated filter 13 intersect with each other. This is ensured by the passage that has been formed. Further, since the corrugated portions 13a of the corrugated filter 13 are in an intersecting state, the captured and liquefied oil can be reliably transferred to the oil storage passage 15 in the frame 14 via any of the corrugated portions 13a. Will flow into. Of course, since the corrugated portions 13a of each corrugated filter 13 are in an intersecting state, the rigidity of the entire filter 10 is increased, and this deformation can be prevented, for example, when the filter 10 is washed in the sink of the system kitchen 100. Things.

The oil that has flowed into the oil storage passage 15 in the frame 14 through each wave portion 13a is
, But in the embodiment shown below,
An opening 15a is formed in the middle of the oil storage passage 15 as shown in FIG. 7, and a large-capacity oil storage (not shown) provided in the main body of the range hood 20 through the opening 15a. It flows in. Since this oil reservoir can be removed from the range hood 20, it is sufficient to remove the oil reservoir and discard the oil therein.

Therefore, according to the filter 10 of the present invention, not only the front and rear flat filter 11, the rear flat filter 12, and the two corrugated filters 13 can sufficiently capture the soot, but also the liquefied oil can be reliably filtered. 10
It can be discharged outside, and the occurrence of clogging can be prevented for a long time.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a range hood according to an embodiment of the present invention; FIG. The system kitchen 100 is shown, and steam and oil smoke generated by cooking on the gas stove 30 of the system kitchen 100 are sucked by operating the range hood 20 above the system kitchen 100 and discharged to the outside. It becomes.

The suction port 21 of the range hood 20 has
As shown in FIGS. 2 and 3, the filter 1 according to the present invention
0 is detachably attached. This filter 10
It has the external shape as shown in FIGS. 4 and 5, and at first glance it is not different from the one normally used, but the structure in it is, as shown in FIGS. It is completely different from that of

That is, the filter 10 according to the present invention
Are two flat plate filters 11 and 12 each having a large number of meshes and a flat plate shape, and a corrugated plate shape having a large number of meshes. At least two corrugated filters 13 and 13 sandwiched between the filter-shaped filters 11 and 12;
3 and a frame 14 having an oil storage passage 15 for fixing or fixing the outer peripheral edges of the two flat filters 11 and 12 and for flowing or storing liquefied oil smoke or the like.
It is to be used instead of the conventionally used one.

As shown in FIGS. 4 and 5, the front flat filter 11 and the rear flat filter 12 constituting the filter 10 are flat plates formed by using a punching metal, a lath net or the like. In this embodiment, a metal member is used. The front plate filter 11 includes:
The mesh is made as small as possible because it is the first part to be touched by oil smoke and the like. On the other hand, since the back flat filter 12 is a surface on which the exhaust gas and the like of the filter 10 are emitted, the mesh of the back flat filter 12 is to improve the air permeability as much as possible.
It is designed to be larger than that of 1.

Each corrugated filter 13 sandwiched between the front flat filter 11 and the rear flat filter 12
In FIG. 6, a large number of meshes are formed by punching a plate material such as aluminum, and as shown in FIG. 6, a large number of parallel wave portions 13a are formed in the aluminum plate material. In the present embodiment, the span (distance between wave peaks) of each wave portion 13a is about 10 mm, and the amplitude (distance between wave peak and valley) of each wave portion 13a is about 2.5 to 2.5 mm. 3
mm.

Each corrugated filter 13 is sandwiched between the front flat filter 11 and the rear flat filter 12 such that the corrugated portions 13a cross each other. That is, as shown in FIGS. 7 and 8, each wave portion 13 a intersects each other, thereby increasing the rigidity of the entire filter 10 and making the direction of each wave portion 13 a different. Therefore, the flow of the captured oil is improved. Of course, by adopting three or more such corrugated filter 13,
It is possible to ensure the overall rigidity and improve the capture of oil smoke.

The flat plate filter 1 constructed as described above
1. Back flat filter 12 and two corrugated filters 1
3, the periphery thereof is fixed by the frame 14 attached to the suction port 21 on the range hood 20 side as shown in FIGS. 6, 7 and 8. The filter 1 as an integral body as shown in FIG.
It becomes 0. What is important here is that the outer end of each wave portion 13a of each wave plate filter 13 is
4 so that the oil captured by the corrugated filter 13 or the like
It can flow into the oil storage passage 15 inside.

As shown in FIGS. 4 to 6, the frame 14 of the present embodiment has a projection for mounting on the suction port 21 side of the range hood 20, and is shown in FIG. As described above, a portion has an opening 15a. When the filter 10 is attached to the suction port 21 of the range hood 20, the opening 15a
The oil is to flow into the zero-side oil reservoir.

[0024]

As described above in detail, in the present invention, as exemplified in the above embodiment, "Range hood 2"
The filter 10 is detachably attached to the suction port 21 for liquefying and capturing oily smoke and the like in the exhaust gas sucked by the range hood 20. The two flat-plate filters 11 and 12 each have a flat-plate shape, and a corrugated plate having a large number of meshes. At least two corrugated sheet filters 13, 13 to be sandwiched,
3 and 13 and the frame 14 having an oil storage passage 15 for flowing or storing liquefied oil smoke or the like while fixing the outer peripheral edges of the two flat filters 11 and 12 ". This makes it possible to provide a filter for a range hood having a simple structure that does not impair air permeability even after long-term use and that can sufficiently capture oily smoke and the like.

[Brief description of the drawings]

FIG. 1 is a front view of a system kitchen having a range hood into which a filter of the present invention is incorporated.

FIG. 2 is a longitudinal sectional view of the range hood shown in FIG.

FIG. 3 is an enlarged bottom view of the range hood.

FIG. 4 shows a filter according to the invention;
(A) is a front view, (B) is a side view, and (C) is a plan view.

FIG. 5 is a rear view of the same filter.

FIG. 6 shows the internal structure of the filter, and is a partially cutaway front view of the filter, in which a partially enlarged cross-sectional view of each filter, which appears by breaking, is attached to each filter by an arrow.

FIG. 7 is a partially enlarged sectional view taken along line 1-1 in FIG. 6;

FIG. 8 is a partially enlarged sectional view taken along line 2-2 in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Filter 11 Front flat filter 12 Back flat filter 13 Corrugated filter 13a Wave part 14 Frame 15 Oil storage passage 15a Opening 20 Range hood 21 Suction port 30 Gas stove 100 System kitchen

Claims (1)

(57) [Claims] 1. A filter which is detachably attached to a suction port of a range hood to liquefy and capture oily smoke and the like in exhaust gas sucked by the range hood. Front and back two flat plate filters each having a mesh, and a corrugated plate having a large number of meshes, and at least two filters sandwiched between the two plate filters so that each wave portion direction intersects. And a frame body having an oil storage passage for flowing or storing liquefied oil smoke or the like while fixing the outer peripheral edges of the corrugated filter and the flat filter. Range hood filter.