Range hood

Abstract

The utility model discloses a kind of range hood, including shell, shell has smoke collecting cavity and with the air inlet of smoke collecting cavity communication, shell has the panel of user side, panel is provided with perforation in the direction of oil fume to the air inlet flow, perforation forms noise reduction structure on panel.The range hood of the utility model, the sound in smoke collecting cavity is transmitted from air inlet, part sound wave will impact panel, the perforation on panel will play the absorption effect to the sound wave of impact, so as to weaken the sound wave reflected to user, to reduce the noise heard by user, in this way, the noise reduction effect of range hood can be improved, improve user experience.

Claims

1. A range hood, comprising a housing (1), the housing (1) having a smoke collection chamber (11) and an air intake (12) communicating with the smoke collection chamber (11), characterized in that: The housing (1) has a panel (13) facing the user side, and the panel (13) has a plurality of perforations (131) in the direction of the flow of oil fumes to the air intake (12), and the plurality of perforations (131) form a noise reduction structure on the panel (13).

2. The range hood according to claim 1, characterized in that, The diameter of the perforations (131) on the panel (13) is between 1 mm and 4 mm, and the spacing between the perforations (131) is between 8 mm and 20 mm.

3. The smoke hood according to claim 1, characterized in that, From top to bottom, the row spacing of each row of perforations (131) gradually decreases, and / or the diameter of each row of perforations (131) gradually increases.

4. The range hood according to claim 1, characterized in that, The housing (1) has a back panel assembly, which includes a back panel (14) and a front panel (13). The front panel (13) is located on the front side of the back panel (14), and a hollow sound insulation cavity (a) is provided between the front panel (13) and the back panel (14).

5. The range hood according to claim 4, characterized in that, The thickness of the hollow sound insulation cavity (a) is 8mm to 20mm.

6. The range hood according to claim 4, characterized in that, The sound insulation cavity (a) is filled with sound-absorbing cotton (2).

7. The range hood according to claim 6, characterized in that, The sound-absorbing cotton (2) has an oleophobic coating on the side facing the panel (13).

8. The range hood according to claim 4, characterized in that, The cross-section of the hollow sound insulation cavity (a) is a variable cross-section, and the hollow sound insulation cavity (a) gradually becomes thinner from top to bottom.

9. The range hood according to claim 1, characterized in that, The range hood is a top-mounted range hood. The housing (1) has a top plate (15) and a panel (13) facing the user. The air intake (12) is located on the top plate (15). The noise reduction structure is arranged downward along the upper edge of the panel (13).

10. The smoke hood according to claim 1, characterized in that, The range hood is a side-suction range hood. The housing (1) has a back plate (14), a front panel (13), left and right side panels and a cover plate. The back plate (14), the front panel (13), the left and right side panels and the cover plate form a cavity. An inner air box (3) is installed in the cavity. The inner air box (3) has the smoke collection chamber (11) and an air box vent that communicates with the smoke collection chamber (11). The air intake (12) communicates with the smoke collection chamber (11) through the air box vent. At least the area above and below the air intake (12) on the front panel (13) or the area on the front panel (13) excluding the air intake (12) is provided with the perforation (131).

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