CN215523426U

CN215523426U - Fume exhaust fan

Info

Publication number: CN215523426U
Application number: CN202120676897.5U
Authority: CN
Inventors: 梁齐齐; 朱学江; 徐敬龙; 徐梦玲
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-01-14
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a range hood, which comprises a box body and a fan system arranged in the box body, wherein the box body comprises a front panel positioned on the front side and a bottom plate positioned at the bottom, the front panel is provided with a main air inlet, the bottom plate is provided with an auxiliary air inlet, and the range hood is characterized in that: the auxiliary air inlet is provided with a first filter screen and a second filter screen, the second filter screen is positioned on the upper stream of the first filter screen on the oil smoke flow path, and the two filter screens are arranged at intervals. Compared with the prior art, the utility model has the advantages that: set up two-layer filter screen in air intake department, can improve the grease separation degree, reduce the accumulation of oil smoke granule in box and fan system, ensure long-time normal work, especially the two air inlet fan of adaptation.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil fume purification device, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

In order to improve the effect of oil smoke absorption, it is common practice to increase the area covered by the air inlet. The range hood disclosed in the chinese patent with the application number of 202020176183.3 comprises a housing provided with a main air inlet, an air suction device mounted on the housing, and an oil cup arranged at the bottom of the housing, wherein an auxiliary air inlet spaced from the main air inlet is further arranged on the housing, a panel capable of opening and closing the auxiliary air inlet is pivoted on the housing, and the auxiliary air inlet comprises a plurality of second meshes arranged in an array.

In order to enable the air inlet to cover a larger area, the panel on the whole front side is designed to be overturned to form the thin range hood which has a light and thin appearance. However, because the auxiliary air inlet is only provided with a single-layer filter screen, the oil separation degree is low, and particularly when the fan system needs to wind forward and backward, the oil accumulation of the fan system is seriously influenced, and the normal work of the fan system is influenced; in addition, in order to enlarge the range of smoke collection, the range hood needs to be widened to maintain a certain air volume, and the integrated filter screen is inconvenient to clean.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a range hood which can improve the oil separation degree aiming at the defects in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a range hood, includes box and the fan system of setting in the box, the box is including the front panel that is located the front side and the bottom plate that is located the bottom, main air intake has been seted up on the front panel, supplementary air intake, its characterized in that have been seted up on the bottom plate: the auxiliary air inlet is provided with a first filter screen and a second filter screen, the second filter screen is positioned on the upper stream of the first filter screen on the oil smoke flow path, and the two filter screens are arranged at intervals.

Preferably, the structure of the two air intakes of cooperation box, the fan system is air intake respectively forward and the two air intake fans backward, the air intake of fan system forward constitutes the main air inlet region.

For avoiding dripping to the fluid downward drippage on the first filter screen, first filter screen includes first filter screen body and sets up the first mesh on first filter screen body, the periphery of first mesh has the turn-ups of buckling and forming to the box inside.

In order to better gather the oil smoke entering the auxiliary air inlet, the first filter screen gradually sinks a part towards the inside of the box body from the periphery to the middle, so that a smoke gathering cavity is formed.

In order to facilitate the cleaning of the second filter screen, the second filter screen is detachably connected with the bottom plate.

Preferably, the second filter screen includes second filter screen body and sets up the second mesh on second filter screen body, wherein one side and the bottom plate cooperation of pegging graft of second filter screen body, the opposite side that second filter screen body is relative passes through the magnet with the bottom plate and adsorbs and be connected.

Preferably, one side of the second filter screen body is provided with an insertion piece, the bottom plate is provided with a socket at the position around the auxiliary air inlet, and the insertion piece can be inserted into the socket.

In order to facilitate the positioning of the magnet and reduce the gap between the bottom plate and the second filter screen, a positioning groove is formed in the bottom plate, and the magnet is arranged in the positioning groove.

For avoiding the fluid drippage on the second filter screen, the second filter screen includes second filter screen body and sets up the second mesh on second filter screen body, the rear edge of second filter screen body forms the turn-up that upwards and buckle forward.

For adapting to double-stove cooking utensils, the auxiliary air inlets are arranged on the left side and the right side of the bottom plate.

In order to receive oil in the box body conveniently and guide oil smoke entering from the auxiliary air inlet, the bottom plate is inclined downwards gradually from front to back and forms a flat plate extending horizontally at the rear side part, an oil cup is arranged below the rear side part of the bottom plate, and the auxiliary air inlet is formed in the inclined part of the bottom plate.

In order to facilitate the oil to enter the oil cup from the box body, the bottom plate is provided with an oil leakage hole at a position corresponding to the oil cup.

In order to facilitate the collection of the oil smoke entering from the front side and avoid the escape of the oil smoke, the front side of the main air inlet is provided with a smoke baffle plate capable of opening or closing the main air inlet.

Compared with the prior art, the utility model has the advantages that: the two layers of filter screens are arranged at the air inlet, so that the oil-fat separation degree can be improved, the accumulation of oil-smoke particles in the box body and the fan system is reduced, the long-time normal work is ensured, and the double-air-inlet fan is particularly suitable for the double-air-inlet fan; in order to prevent the oil from dripping from the first filter screen, the grid holes are flanging holes; for the convenience of washing the second filter screen, the second filter screen adopts the detachable structure, and supplementary air intake is less two simultaneously, and the second filter screen volume reduces, is further convenient for wash.

Drawings

Fig. 1 is a schematic view of a range hood according to a first embodiment of the present invention;

fig. 2 is a schematic view of a partially exploded structure of a range hood according to a first embodiment of the present invention;

FIG. 3 is an enlarged view of a portion I of FIG. 2;

fig. 4 is a schematic view of a second oil screen of the range hood according to the first embodiment of the present invention;

fig. 5 is a sectional view (hidden smoke baffle) of the range hood according to the first embodiment of the present invention;

FIG. 6 is an enlarged view of portion II of FIG. 5;

fig. 7 is a schematic view of a partially exploded structure of a range hood according to a second embodiment of the present invention;

fig. 8 is an enlarged view of a part iii of fig. 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1, 2 and 5, a range hood includes a box 1 and a fan system 2 disposed in the box 1. The fan system 2 adopts a double-air-inlet fan, the air inlets of which are respectively forward and backward, and the forward air inlets form a main air inlet area. Preferably, the fan system 2 employs a centrifugal fan.

The casing 1 may have a substantially hollow rectangular parallelepiped shape, and the dimensions in the left-right direction, the front-back direction, and the up-down direction are the length, width, and height of the casing 1, respectively. The case 1 includes a front panel 11 at the front side and a bottom panel 12 at the bottom, and the bottom of the front panel 11 is connected to the front end of the bottom panel 12, which may be a single piece.

The front panel 11 is provided with a main air inlet 111, and a smoke baffle 3 can be arranged on the front side of the main air inlet 111, so that the effect of gathering smoke is improved, and the smoke is prevented from escaping. The smoke baffle 3 is rotatably connected with the box body 1 at the top end, and the rotating shaft of the smoke baffle 3 extends in the left-right direction.

The bottom plate 12 is inclined downward from front to rear, and may be continuously inclined at a rear side portion thereof, or may be a flat plate extending horizontally for facilitating the installation of the oil cup 5. The oil cup 5 is disposed below the rear side of the bottom plate 12. An oil leakage hole 121 is formed in the bottom plate 12 at a position corresponding to the oil cup 5, so that oil collected in the tank body 1 can flow down and be collected in the oil cup 5.

The bottom plate 12 is located at the front side of the oil cup 5, i.e. the inclined part of the bottom plate 12 is separately provided with an auxiliary air inlet 122, so that the range hood of the utility model forms a double air inlet structure of forward air and downward air inlet. Because the oil smoke that supplementary air intake 122 got into mainly gets into from fan system 2 rear side, usually fan system 2 only sets up the filter screen in front side air intake department, consequently can not further filter from the oil smoke that fan system 2 rear side (the position of supplementary air intake) got into, can lead to fan system 2 greasy dirt accumulation to increase. Therefore, the auxiliary air inlet 122 is provided with a first filter 41 and a second filter 42, and the second filter 42 is located upstream of the first filter 41 on the oil smoke flow path, and the two filters are arranged at intervals.

In the present invention, in order to make the range hood better match with a dual-range kitchen range, the auxiliary air inlets 122 are formed on the left and right sides of the bottom plate 12, and the middle of the bottom plate 12 is in a closed state, so that each auxiliary air inlet 122 corresponds to one kitchen range, and the size of the auxiliary air inlet 122 is enough to meet the air inlet requirement. In addition, the volume of the second filter 42 is also greatly reduced, which facilitates cleaning.

Referring to fig. 2 to 6, the first screen 41 may be a grid screen, and includes a first screen body 411 and a plurality of first screen holes 412 formed in the first screen body 411, each first screen hole 412 may extend in a longitudinal direction to form a grid hole, and the first screen holes 412 are spaced left and right. The periphery of each first mesh 412 is provided with a flange 413 formed by bending towards the inside of the box body 1, so that oil dripping on the first filter screen 41 in the box body 1 can be prevented from dripping downwards into a pot.

The second screen 42 includes a second screen body 421 and a plurality of second screen holes 422 opened on the second screen body 421, each second screen hole 422 may be elongated in a front-back direction, and the second screen holes 422 are spaced apart from each other in the left-right direction.

The second filter screen body 421 of each second filter screen 42 has a plug piece 423 disposed on one side in the left-right direction, and the bottom plate 12 is provided with a socket 123 at the position around the auxiliary air inlet 122. The other side of the second screen body 421 in the left-right direction is fixed to the bottom plate 12 by the magnet 44, and the magnet 44 may be disposed at a corner of the second screen body 421. The bottom plate 12 is formed with a positioning groove 124, and the magnet 44 can be limited in the positioning groove 124, so that the position of the magnet 44 can be conveniently limited, and the large gap formed at the joint of the bottom plate 12 and the second filter screen 42 can be avoided, and the oil smoke can enter the box body 1 from the large gap.

When the second filter screen 42 is installed, the inserting piece 423 at one side is inserted into the corresponding inserting hole 123, and then the magnet 44 is used for absorbing the other side with the bottom plate 12.

The side of the second filter screen 42 that is inserted and matched can also be detachably connected in a clamping manner. The rear side edge of the second strainer body 421 may extend above the oil cup 5, and may also form a bead 424 bent upward and forward to prevent oil accumulated on the second strainer 42 from dripping.

The first filter 41 is gradually depressed toward the inside of the cabinet 1 from the periphery toward the middle to form a smoke collecting chamber 43 for better sucking the oil smoke.

Through setting up first filter screen 41 and second filter screen 42, can improve the grease separation degree, reduce the inside possibility of oil smoke granule entering box 1, fan system 2. And the second filter screen 42 adopts the detachable mode to connect, can the convenience of customers in time clean the second filter screen 42 and the chamber of holding together the cigarette of rear side, improves user experience.

Example two

Referring to fig. 7 and 8, in the present embodiment, the difference from the first embodiment is that the second screen 42 may also be connected to the bottom plate 12 at upper and lower sides, referring to fig. 7 and 8, the inserting piece 423 extends downward from the lower end of the second screen body 421, the inserting opening 123 is opened at a corresponding position of the bottom plate 12 around the auxiliary air inlet 122, and the magnet 44 is disposed in the middle of the upper end of the second screen body 421.

Claims

1. The utility model provides a range hood, includes box (1) and sets up fan system (2) in box (1), box (1) is including front panel (11) that are located the front side and bottom plate (12) that are located the bottom, main air intake (111) have been seted up on front panel (11), supplementary air intake (122), its characterized in that have been seted up on bottom plate (12): the auxiliary air inlet (122) is provided with a first filter screen (41) and a second filter screen (42), the second filter screen (42) is located on the upstream of the first filter screen (41) on the oil smoke flowing path, and the two filter screens are arranged at intervals.

2. The range hood of claim 1, wherein: the fan system (2) is a double-air-inlet fan with air inlets facing forwards and backwards respectively, and the air inlets facing forwards of the fan system (2) form a main air inlet area.

3. The range hood of claim 1 or 2, wherein: the first filter screen (41) comprises a first filter screen body (411) and first mesh holes (412) formed in the first filter screen body (411), and flanges (413) formed by bending towards the inside of the box body (1) are arranged on the periphery of the first mesh holes (412).

4. The range hood of claim 1 or 2, wherein: the first filter screen (41) is gradually sunk to a part of the interior of the box body (1) from the periphery to the middle, so that a cigarette collecting cavity (43) is formed.

5. The range hood of claim 1 or 2, wherein: the second filter screen (42) is detachably connected with the bottom plate (12).

6. The range hood of claim 5, wherein: second filter screen (42) include second filter screen body (421) and set up second mesh (422) on second filter screen body (421), wherein one side and bottom plate (12) grafting cooperation of second filter screen body (421), the opposite side of second filter screen body (421) passes through magnet (44) with bottom plate (12) and adsorbs the connection.

7. The range hood of claim 6, wherein: one side of the second filter screen body (421) is provided with an insertion piece (423), a socket (123) is formed in the position, located on the periphery of the auxiliary air inlet (122), of the bottom plate (12), and the insertion piece (423) can be inserted into the socket (123).

8. The range hood of claim 6, wherein: a positioning groove (124) is formed in the bottom plate (12), and the magnet (44) is placed in the positioning groove (124).

9. The range hood of claim 1 or 2, wherein: the second filter screen (42) comprises a second filter screen body (421) and second mesh holes (422) formed in the second filter screen body (421), and a curled edge (424) bent upwards and forwards is formed at the rear side edge of the second filter screen body (421).

10. The range hood of claim 1 or 2, wherein: the auxiliary air inlets (122) are arranged on the left side and the right side of the bottom plate (12).

11. The range hood of claim 1 or 2, wherein: the bottom plate (12) is gradually inclined downwards from front to back and is a flat plate extending horizontally at the back side, an oil cup (5) is arranged below the back side of the bottom plate (12), and the auxiliary air inlet (122) is formed in the inclined part of the bottom plate (12).

12. The range hood of claim 11, wherein: an oil leakage hole (121) is formed in the position, corresponding to the oil cup (5), of the bottom plate (12).

13. The range hood of claim 1 or 2, wherein: the front side of the main air inlet (111) is provided with a smoke baffle (3) which can open or close the main air inlet (111).