Extraction hood

Abstract

An extraction hood includes a casing having one or more suction openings or mouths and a connection system to an outlet duct for the removal of the drawn air filter. Inside the casing there are one or more filters and one or more UV lamps designed to be used for disinfection, for the abatement of smells and greases, and for self-cleaning purposes.

Claims

1. An extraction hood (1) comprising: a substantially box-shaped casing (11) having one or more suction openings or mouths (13) and connection means to at least one outlet duct designed to remove a drawn air flow; one or more filters (2) positioned inside said casing (11), wherein at least one of said one or more filters (2) is arranged inclined inside said casing (11), so that material held by said one or more filters (2) slides downwards in a direction of inclination and is collected in at least one collection channel or container (3) arranged in a corresponding position inside said casing (11); and one or more UV lamps installed inside said casing (11).

2. The extraction hood (1) according to claim 1, wherein said one or more filters are completely or partially made of stainless steel.

3. The extraction hood (1) according to claim 1, wherein at least one of said one or more filters (2) is a baffle filter.

4. The extraction hood (1) according to claim 1, wherein at least one of said one or more filters (2) is a mesh baffle filter.

5. The extraction hood (1) according to claim 1, wherein at least one of said one or more UV lamps (4) is oriented to irradiate an inside of said casing (23), at least part of a surface of at least one of said one or more filters (2), or at least an inside of said at least one collection channel or container (3).

6. The extraction hood (1) according to claim 1, wherein at least one of said one or more UV lamps (4) is placed above said at least one collection channel or container (3) designed to collect the filtered material.

7. The extraction hood (1) according to claim 1, wherein said one or more filters (2) are configured or arranged on one or more pairs of parallel rows (21, 22) and inclined so as to form a substantially V-shaped abatement chamber (23), and wherein said at least one collection channel or container (3) is positioned between each pair of rows (21, 22) of said one or more filters (2).

8. The extraction hood (1) according to claim 7, wherein said one or more UV lamps are distributed in said at least one abatement chamber (23) in such a way as to irradiate all inner surfaces of said abatement chamber (23).

9. The extraction hood (1) according to claim 1, wherein at least one of said one or more filters (2) or said collection channel or container (3) are constrained inside said casing (11) through reversible constraining means, so as to allow said one or more filters (2) to be extracted and, if necessary, replaced.

10. The extraction hood (1) according to claim 1, wherein said casing (11) is delimited laterally by walls (12) and has a top cover or ceiling (14), and wherein said walls (12) and/or said ceiling (14) are provided with means designed to constrain the casing (11) to the top cover or ceiling or to the walls and to connect the at least one outlet duct to enable a movement of the filtered air flow.

Description

[0039] The characteristics of the new extraction hood will be better explained by the following description with reference to the drawing, attached by way of a non-limiting example.

[0040] FIG. 1 shows one configuration of the new extraction hood (1) in a non-limiting example.

[0041] The new extraction hood (1) comprises a substantially box-shaped casing (11), determining an internal volume (10) in which the filtration of an air flow (A) takes place, for example the fumes generated by a cooktop.

[0042] Said casing (11) comprises one or more openings (13) or intake openings at its bottom, through which the air flow (A) to be filtered enters.

[0043] Conveniently, said air flow (A) is generated by an aspiration system not shown in the FIGURES.

[0044] Said casing (11) is laterally delimited by walls (12) and at the top by a cover or ceiling (14), wherein said walls (12) and/or said ceiling (14) are equipped with means for constraining the casing (11) to the ceiling or a wall and to connect at least one channel for the discharge of the filtered air flow in question.

[0045] Inside said casing (11) there are one or more filters (2) for filtering the air and walls or deflectors (15) installed inside said casing (11) to convey the flow of extracted air (A) through said filters (2).

[0046] Said filters (2) are preferably of the labyrinth or baffle type and/or of the mesh type, preferably made of stainless steel and structured and certified to be irradiated by UV rays.

[0047] Preferably, said filters (2) are constrained inside said casing (11) by removable means, in order to enable them to be removed and replaced. For example, said filters (2) are secured by guides.

[0048] In the example shown in FIG. 1, said filters (2) are arranged inclined inside said casing (11), for example on one or more pairs of parallel rows (21, 22) and inclined so as to create a substantially V-shaped abatement chamber (23) between each pair of rows (21, 22).

[0049] At the lowest point of said abatement chamber (23), between the two rows (21, 22) of filters, at least one channel or collection tank (3) is mounted for the material carried by the air flow (A) and captured by the filters (2), wherein said material normally comprises particles of fat and water, particularly in the case of fumes generated by a cooktop or in a kitchen in general.

[0050] Said channel or collection tank (3) can also be removed to facilitate its cleaning. Inside said casing (11) there are also one or more UV lamps (4) oriented so as to preferably irradiate at least one part or surface of at least one of said filters (2) and preferably all the internal surfaces of said abatement chamber (23).

[0051] In the preferred embodiment shown in the FIGURE, said UV lamps are installed above said abatement chamber (23) located between the two rows (21, 22) of said filters (2), so that the light emitted by the lamps substantially irradiates the entire surface of the filters (2), at least on the filtered air flow (A′) outlet side.

[0052] Said UV lamps (4) are in particular arranged so that the light emitted also irradiates the inside of said at least one channel or collection tank (3) of the filtered material. In particular, at least one of said UV lamps (4) is, for example, installed above said channel or collection tank (3) for the filtered material.

[0053] Therefore, with reference to the preceding description and the attached drawing the following claims are made.