CN218510965U - Filter screen device for range hood and range hood - Google Patents

Abstract

The utility model discloses a filter screen device and range hood for range hood's filter screen device includes: a first filter screen; a second filter screen; a porous filter element constrained between the first and second screens; the method is characterized in that: the first screen has a recessed first cavity in which the porous filter element is at least partially received. Porous filter core restraint is between first filter screen and second filter screen, and first filter screen has sunken first cavity, and porous filter core local holding has improved the area of contact of porous filter core and filter screen at least in this first cavity, can hold more porous filter cores moreover, improves the ability that filter unit filtered the oil smoke.

Description

Filter screen device for range hood and range hood

Technical Field

The utility model belongs to the technical field of range hood, concretely relates to a filter screen device and range hood for range hood.

Background

The filter screen device is one of the main components of the range hood and is used for filtering oil smoke sucked by the range hood and then separating the oil smoke. Traditional filter unit is usually including the filter screen that is provided with bar gas pocket or circular gas pocket for when the oil smoke process filter screen, oil drips and hangs on the filter screen, and the flue gas is pumped the wind channel through the gas pocket by the fan, realizes the oil smoke separation, but the oil smoke separation effect of individual layer filter screen is poor, consequently, prior art strengthens the effect of adsorbing and filtering the oil smoke through the stack structure that the filter screen combines porous filter core.

For example, chinese utility model patent application "a smoke filter screen" with publication number CN216384304U (application number 202122724737.6) discloses a first mesh, a middle filter layer and a second mesh, wherein the first mesh and the second mesh are located at two sides of the middle filter layer, the first mesh, the middle filter layer and the second mesh are fixed by a surrounding layer, the first mesh and the second mesh are made of metal material, the aperture of the first mesh is larger than that of the second mesh, and the middle filter layer is made of porous nickel foam. The utility model discloses a filter screen in is the stack structure of first wire side (first filter screen), middle filter layer (porous filter core) and second wire side (second filter screen), compares in traditional individual layer or double-deck filter screen have better absorption and the effect of filtering the oil smoke, nevertheless has following problem: 1) The first mesh surface, the middle filter layer and the second mesh surface are arranged side by side from front to back, and the contact surface between the middle filter layer and the adjacent mesh surface is limited, so that the oil smoke filtering capability is reduced; 2) In the long-term use process of the filter screen, oil stains can be continuously accumulated in the first screen surface, the second screen surface and particularly the middle filter layer, and all parts in the filter screen are fixed together through the edge wrapping layer, so that the filter screen is not beneficial to cleaning in the later period and particularly replacing the middle filter layer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a filter unit for range hood that can increase porous filter core and filter screen area of contact improves the oil smoke filtering capability is provided.

The utility model aims to solve the second technical problem that a dismantled and assembled filter screen device that is used for range hood is provided.

The utility model aims to solve the third technical problem that a range hood is provided.

The utility model provides a technical scheme that first technical problem adopted does: a screen assembly for a range hood, comprising:

a first filter screen;

a second filter screen;

a porous filter element constrained between the first screen and the second screen;

the method is characterized in that: the first screen has a recessed first cavity in which the porous filter element is at least partially received.

For further increasing the area of contact of porous filter core and filter screen, improve the ability that filter screen device filtered the oil smoke, as preferred, the second filter screen have sunken second cavity to sunken direction with the sunken opposite direction of first cavity, porous filter core be located first cavity closes the cavity of formation with the second cavity in.

For improving the oil smoke separation efficiency of filter screen device, as preferred, porous filter core, first filter screen, the surface coating of second filter screen have oleophobic hydrophilic layer or hydrophobic oleophilic oil layer.

Preferably, the material of the porous filter element is foam metal or foam plastic.

The utility model provides a technical scheme that second technical problem adopted does: the first filter screen and the second filter screen are connected together in a detachable mode.

The detachable connection mode has a plurality of modes, and preferably, the first filter screen and the second filter screen are connected together in a magnetic attraction connection mode. Considering that first filter screen and second filter screen are the metal material of iron-containing element usually, consequently, it is simpler to adopt the mode of magnetism to inhale the connection with first filter screen and second filter screen.

Further, preferably, the first filter screen comprises a first screen surface and a first connecting part arranged on the periphery of the first screen surface, the first screen surface is provided with a first concave cavity, and strip-shaped first air holes are distributed on the first screen surface; the second filter screen include the second wire side and locate the second wire side outlying second connecting portion, the second wire side distribute and have bar second bleeder vent, first connecting portion, second connecting portion be the magnetism material that can magnetism inhale the connection.

For improving the oil smoke separation efficiency of the filter screen device, preferably, the extending direction of the first air hole is intersected with the extending direction of the second air hole, so that the oil smoke passing through the first filter screen can be intercepted again by the second filter screen, and the intercepted oil smoke can be subjected to secondary oil smoke separation by the porous filter element.

The utility model aims to solve the third technical problem that a range hood is provided, its characterized in that: the filter screen device for the range hood is applied.

Compared with the prior art, the utility model has the advantages of: porous filter core restraint is between first filter screen and second filter screen, and first filter screen has sunken first cavity, and the at least local holding of porous filter core has improved the area of contact of porous filter core and filter screen in this first cavity, can hold more porous filter cores moreover, improves the ability that the filter screen device filtered the oil smoke.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another view angle according to an embodiment of the present invention.

Fig. 3 is an exploded view of an embodiment of the present invention.

Fig. 4 is a schematic structural view of a second filter screen in an embodiment of the present invention.

Fig. 5 is an enlarged view at I in fig. 1.

Fig. 6 is an enlarged view of Π in fig. 2.

Fig. 7 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Referring to fig. 1 to 7, a preferred embodiment of the present invention is shown, and the filter screen device for a range hood includes a first filter screen 1, a second filter screen 2 and a porous filter element 3.

The first filter screen 1 is distributed with strip-shaped first air holes 11 and a first concave cavity 14 with a concave. The first filter screen 1 comprises a first screen surface 12 and a first connecting part 13 arranged on the periphery of the first screen surface 12, the first screen surface 12 is sunken to form a first cavity 14, and a plurality of first air holes 11 are arranged on the first screen surface 12 at intervals. The first connecting portion 13 is made of magnetic material. The surface of the first screen 1 is coated with a hydrophobic oleophilic layer.

The second filter screen 2 is distributed with strip-shaped second air holes 21, and the extending direction of the second air holes 21 is crossed with the extending direction of the first air holes 11. The second screen 2 has a second cavity 24 recessed in the opposite direction to the first cavity 14. The second filter screen 2 comprises a second screen surface 22 and a second connecting part 23 arranged on the periphery of the second screen surface 22, the second screen surface 22 is sunken to form a second cavity 24, and a plurality of second air holes 21 are arranged on the second screen surface 22 at intervals. The second connecting portion 23 is made of a magnetic material capable of magnetically connecting with the first connecting portion 13. The surface of the second screen 2 is coated with a hydrophobic oleophilic layer. Under the working state, the first filter screen 1 and the second filter screen 2 are connected together in a magnetic attraction connection mode through the first connection part 13 and the first connection part 13 after being folded, and the first concave cavity 14 and the second concave cavity 24 are folded to form a cavity.

The porous insert 3 is located in a chamber formed by the first cavity 14 and the second cavity 24. The surface of the porous filter element 3 is coated with a hydrophobic oleophilic layer. In this embodiment, the material of the porous filter element 3 is foamed aluminum. When the filter screen device needs to be cleaned, the filter screen device is detached from the range hood, the first connecting part 13 is separated from the first connecting part 13, the first filter screen 1, the second filter screen 2 and the porous filter element 3 can be cleaned, and the porous filter element 3 can also be directly replaced.

Claims (9)

1. A screen assembly for a range hood, comprising:

a first sieve (1);

a second sieve (2);

a porous filter element (3) constrained between the first (1) and second (2) screens;

the method is characterized in that: the first sieve (1) has a first recessed cavity (14), and the porous filter insert (3) is at least partially accommodated in the first recessed cavity (14).

2. The screen apparatus for a range hood according to claim 1, wherein: the second filter screen (2) is provided with a second concave cavity (24) which is concave, the concave direction is opposite to the concave direction of the first concave cavity (14), and the porous filter element (3) is positioned in a cavity formed by the involution of the first concave cavity (14) and the second concave cavity (24).

3. The screen apparatus for a range hood according to claim 1, wherein: the surfaces of the porous filter element (3), the first filter screen (1) and the second filter screen (2) are coated with an oleophobic hydrophilic layer or a hydrophobic oleophilic layer.

4. The screen apparatus for a range hood according to claim 1, wherein: the porous filter element (3) is made of foam metal or foam plastic.

5. The screen apparatus for a range hood according to any one of claims 1 to 4, wherein: the first filter screen (1) and the second filter screen (2) are connected together in a detachable mode.

6. The screen apparatus for a range hood according to claim 5, wherein: the first filter screen (1) and the second filter screen (2) are connected together in a magnetic attraction connection mode.

7. The screen apparatus for a range hood according to claim 6, wherein: the first filter screen (1) comprises a first screen surface (12) and a first connecting part (13) arranged on the periphery of the first screen surface (12), the first screen surface (12) is provided with a sunken first cavity (14), and strip-shaped first air holes (11) are distributed on the first screen surface (12); second filter screen (2) include second wire side (22) and locate second wire side (22) outlying second connecting portion (23), second wire side (22) distribute have bar second bleeder vent (21), first connecting portion (13), second connecting portion (23) be the magnetism material that can magnetism inhale the connection.

8. The screen apparatus for a range hood according to claim 7, wherein: the extending direction of the first air hole (11) is crossed with the extending direction of the second air hole (21).

9. A range hood, its characterized in that: use of a sieve arrangement for a range hood according to any one of claims 1 to 8.

Images