CN219775830U - Air curtain structure of range hood and range hood - Google Patents

Abstract

The embodiment of the utility model discloses a range hood air curtain structure and a range hood, comprising an air curtain cover, a baffle, a fan and a filtering structure; the air curtain is covered on the baffle plate and forms a first air channel with the baffle plate, one end of the first air channel is provided with a first air inlet, and the other end of the first air channel is provided with a first air outlet; the filtering structure is embedded in the first air inlet; the fan is arranged in the first air duct. According to the technical scheme, the fan sucks air from the first air inlet and blows the air from the first air outlet, and the blown air forms an air curtain, so that oil smoke generated by the cooking range is separated from a user when cooking; meanwhile, as the first air inlet is provided with the filtering structure, when the first air inlet sucks air, oil smoke contained in the air is filtered, the formed air curtain is low in oil smoke content, air blown out by the air curtain is purified, and the technical problem of poor air quality blown out by the air curtain in the prior art is solved.

Description

Air curtain structure of range hood and range hood

Technical Field

The utility model relates to the technical field of household appliances, in particular to a range hood air curtain structure and a range hood.

Background

With the development of technology, people pursue more comfortable life, and the performance requirements on the range hood are higher. The general cigarette machine all sets up the air curtain, and the high-speed air current of air curtain can keep apart the oil smoke of user at the in-process of cooking, prevents that the oil smoke from escaping, makes the oil smoke can be by better drainage, can block in the dust gets into the air curtain simultaneously, helps keeping the clean environment when user's cooking. The existing air curtain structure pumps air out of a kitchen to form an air curtain, and the formed air curtain air contains oil smoke and dust particles in the heavy oil smoke environment of the kitchen, so that the health of a user is not facilitated, and the blown oil smoke easily influences cooked dishes and is not beneficial to the quality of the dishes.

How to purify the air blown out by the air curtain is therefore a real focus of attention of the person skilled in the art and related.

Disclosure of Invention

In view of the above, the utility model provides a range hood air curtain structure and a range hood, which are used for solving the problem of poor air quality blown out by an air curtain in the prior art. In order to achieve one or a part or all of the above objects or other objects, the present utility model provides an air curtain structure of a range hood, including an air curtain cover, a baffle, a fan and a filtering structure;

the air curtain is covered on the baffle plate and forms a first air channel with the baffle plate, one end of the first air channel is provided with a first air inlet, and the other end of the first air channel is provided with a first air outlet;

the filtering structure is embedded in the first air inlet;

the fan is arranged in the first air duct.

Preferably, the filtering structure comprises a filter screen, a plurality of inserting blocks are arranged on one side wall of the filter screen, a plurality of connecting blocks are arranged on the inner side wall of the first air inlet, inserting holes are formed in the connecting blocks, and the inserting blocks are inserted into the inserting holes and connected with the connecting blocks.

Preferably, the filter structure comprises a filter cotton structure, and the filter cotton structure is connected with the filter screen in a stacking way.

Preferably, a plurality of the inserting blocks form an accommodating space, the filter cotton structure is arranged in the accommodating space, one side wall of the filter cotton structure is abutted to one side wall of the filter screen, and the other side wall of the filter cotton structure is abutted to the connecting block.

Preferably, an outer frame is arranged on the periphery of the filter screen, and the insert block is arranged on the outer frame.

Preferably, the filter screen is a honeycomb mesh structure.

Preferably, the filter cotton structure is an activated carbon filter cotton structure.

Preferably, the air curtain structure of the range hood further comprises a supporting plate, the supporting plate is arranged in the baffle and located in the first air duct, and the fan is installed on the supporting plate.

Preferably, one end of the supporting plate is folded upwards to form a wind shield, the wind shield is closed the first air outlet, the range hood air curtain structure further comprises an air duct cover, the air duct cover is arranged on the supporting plate to form a second air duct, an air outlet of the fan is inserted into an air inlet of the second air duct, the wind shield is in butt joint with an air outlet of the second air duct to close the air outlet of the second air duct, the wind shield is provided with a third air outlet, and the air outlet area of the third air outlet is smaller than the air outlet area of an air outlet of the second air duct.

The utility model also provides a range hood, which comprises the range hood air curtain structure.

The implementation of the embodiment of the utility model has the following beneficial effects:

after the air curtain structure of the range hood and the range hood are adopted, the fan sucks air from the first air inlet and blows the air from the first air outlet, and the blown air forms an air curtain, so that the oil smoke generated by the range is separated from a user when cooking; simultaneously, because the first air intake has set up filtration, filtration filters the air that gets into first wind gap to the air that the air curtain blown out has been purified, the poor problem of air quality that the air curtain among the solution prior art blown out.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

fig. 1 is a schematic diagram of a range hood in one embodiment.

Fig. 2 is an exploded view of the air curtain structure of the smoke machine in one embodiment.

Fig. 3 is a schematic view of a blower and a support plate according to an embodiment.

FIG. 4 is a schematic diagram of an internal structure of a first air duct according to an embodiment.

Fig. 5 is an exploded view of a filter structure in one embodiment.

FIG. 6 is a schematic diagram of a filter screen in one embodiment.

Fig. 7 is a schematic view of a receiving space in one embodiment.

FIG. 8 is a schematic diagram of a stroke mask in one embodiment.

Fig. 9 is a partial enlarged view at a of fig. 5.

Fig. 10 is a partial enlarged view at B of fig. 7.

Fig. 11 is a schematic diagram of a smoke machine in one embodiment.

In the figure: 1. an air curtain cover; 16. a third connecting plate; 14. a left ear block; 15. a right ear piece; 2. a baffle; 3. a blower; 31. a connecting lug; 41. a support plate; 411. a second screw hole; 42. a wind deflector; 43. an air duct cover; 442. a third air outlet; 5. a filter screen; 51. a cotton filter structure; 11. a first connection block; 12. a second connection block; 17. a third connecting block; 13. a jack; 131. a first jack; 132. a second jack; 133. a third jack; 52. an outer frame; 522. inserting blocks; 5221. a first plug; 5222. a second insert block; 5223. a third insert block; 5224. a fourth insert block; 5225. a connection part; 5226. an insertion section; 6. a first air duct; 61. a first air inlet; 62. and a first air outlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, an embodiment of the present utility model provides an air curtain structure of a range hood, including an air curtain cover 1, a baffle 2, a fan 3 and a filtering structure.

The air curtain cover 1 is arranged on the baffle plate 2 and forms a first air channel 6 with the baffle plate 2, one end of the first air channel 6 is provided with a first air inlet 61, and the other end of the first air channel 6 is provided with a first air outlet 62.

The filter structure is embedded in the first air inlet 61.

The fan 3 is arranged in the first air duct 6.

In the present embodiment, the fan 3 sucks air from the first air inlet 61 and blows the air from the first air outlet 62, and the blown air forms an air curtain, so that the cooking fume generated by the stove is separated from the user when cooking; meanwhile, as the first air inlet 61 is provided with the filtering structure, when the first air inlet 61 sucks air, unclean matters contained in the air, particularly oil smoke, are filtered, the formed air curtain is clean and sanitary, and the technical problem of poor air quality blown out by the air curtain in the prior art is solved.

In this embodiment, the air curtain cover 1 is a cover body with two openings, the baffle 2 is connected with the cover opening of the cover body, and the cover opening of the cover body is closed to form the first air duct 6, and meanwhile, the two openings of the cover body form two air duct openings of the first air duct 6, namely the first air inlet 61 and the first air outlet 62. Specifically, the cover body is long-strip-shaped, and the two openings are respectively positioned at two ends of the long-strip-shaped cover body.

Specifically, the baffle 2 may be provided with a plurality of air curtains 1, for example: the baffle plate 2 is provided with two air curtain covers 1, and the two air curtain covers 1 are symmetrical in structure and are oppositely arranged on the baffle plate 2. The greater the number of air curtains 1, the stronger the air curtains formed, and no further restrictions are placed on the number and placement of the air curtains 1.

Specifically, as shown in fig. 4 to 10, the filtering structure includes a filter screen 5, and the filter screen 5 is embedded in the first air inlet 61 and seals the first air inlet 61.

Specifically, the filter screen 5 is used to close the first air inlet 61, so that the air sucked into the first air inlet 61 can be filtered by the filter screen 5, and thus the shape and size of the filter screen 5 should be adapted to the first air inlet 61. For example: the first air inlet 61 is circular, and the filter screen 5 is also circular; the first air inlet 61 is a square opening, and the filter screen 5 is also square.

In the present embodiment, the fan 3 sucks air from the first air inlet 61 and blows the air from the first air outlet 62, and the blown air forms an air curtain, so that the cooking fume generated by the stove is separated from the user when cooking; meanwhile, due to the double-layer filtering structure of the filter screen 5 and the filter cotton structure 51, the filtering effect is better, the formed air curtain is cleaner, and the technical problem of poor air quality blown out by the air curtain in the prior art is solved.

In other embodiments, the filter screen 5 may be attached to the first air inlet 61 by way of adhesive, snap-fit connection, etc., which is not limited herein.

Further, the filter structure comprises a filter screen 5, a plurality of inserting blocks 522 are arranged on one side wall of the filter screen 5, a plurality of connecting blocks are arranged on the inner side wall of the first air inlet, inserting holes 13 are formed in the connecting blocks, and the inserting blocks 522 are inserted into the inserting holes 13 to be connected with the connecting blocks.

Specifically, as shown in fig. 10, the insert 522 is a plate having a sharp portion, such as: the insert 522 may be arrow-shaped or arrow-like, with the insert 522 having a sharp portion to facilitate insertion into the receptacle 13. In some specific embodiments, the insert 522 may be divided into a connection portion 5225 and an insert portion 5226, wherein the connection portion 5225 has a rectangular plate structure, the insert portion 5226 has a triangular structure, the sharp point is located at the apex of the triangular structure, and the connection portion 5225 is integrally formed with the insert portion 5226. The connection portion 5225 is connected to the screen 5, and the insertion portion 5226 is inserted into the insertion hole 13.

Specifically, the number of the plugs 522 may be plural. As shown in fig. 7 to 8, the plurality of plug blocks 522 include a first plug block 5221 and a second plug block 5222, the plurality of connection blocks include a first connection block 11 and a second connection block 12, the first connection block 11 and the second connection block 12 are opposite to each other and are respectively disposed on the inner side wall of the first air inlet 61, the first connection block 11 is provided with a first insertion hole 131, and the first plug block 5221 is inserted into the first insertion hole 131; similarly, the second connection block 12 is provided with a second insertion hole 132, and the second plug 5222 is inserted into the second insertion hole 132.

Specifically, as shown in fig. 9, the first connecting block 11 is a concave connecting block, the center of the first connecting block 11 is provided with an opening, the first connecting block 11 is arranged at the first air inlet 61 and is arranged on the inner wall of the air curtain cover 1, and the opening of the first connecting block 11 is closed by the inner wall of the air curtain cover 1 to form a first jack 131; similarly, the second connecting block 12 is a concave connecting block, the center of the second connecting block 12 is provided with an opening, the second connecting block 12 is relatively arranged at the first air inlet 61 and is arranged on the inner wall of the air curtain cover 1, and the opening of the second connecting block 12 is closed by the inner wall of the air curtain cover 1 to form a second jack 132.

Specifically, the aperture of the connecting portion 5225 of the insert 522 is slightly smaller than the aperture of the opening of each connecting block, so long as the connecting portion 5225 can be inserted.

In this embodiment, the first jack 131 is formed by connecting the first connection block 11 and the opening of the air curtain cover 1, and the second jack 132 is also formed, so that the positions of the first jack 131 and the second jack 132 are marginal, at this time, the aperture size of the outer frame 52 is consistent with the aperture size of the first air inlet 61, so that the first plug 5221 and the second plug 5222 can be accurately inserted into the first jack 131 and the second jack 132 respectively, and the aperture size of the outer frame 52 is consistent with the size of the first air inlet 61, so that the air entering the first air duct 6 is filtered, the filtering effect is better, the formed air curtain is cleaner, and the technical problem of poor air quality blown by the air curtain in the prior art is solved.

In other embodiments, the plurality of inserts 522 further includes a third insert 5223, a fourth insert 5224, and the plurality of connection blocks further includes a third connection block 17. The third connecting block 17 is disposed on the air curtain cover 1 and located at the first air inlet 61, the third connecting block 17 is provided with a third jack 133, and the third plug 5223 or the fourth plug 5224 is inserted into the third jack 133 and located at the first air outlet 62.

Since the plurality of plugs 522 of the filter screen 5 are provided correspondingly, the filter screen 5 is not separated from the front, rear, left and right during installation. For example: the first plug 5221 can be inserted into the first jack 131 or the second jack 132; similarly, the second plug 5222 can be inserted into the second insertion hole 132 or the first insertion hole 131.

When the first plug 5221 is inserted into the second receptacle 132, the second plug 5222 is inserted into the first receptacle 131, and the fourth plug 5224 is inserted into the third receptacle 133. Similarly, when the first plug 5221 is plugged into the first jack 131, the second plug 5222 is plugged into the second jack 132, and at this time, the third plug 5223 is plugged into the third jack 133.

In other embodiments, the plurality of connection blocks may further include a fourth connection block (not shown) disposed opposite the third connection block 17, the fourth connection block being disposed on the baffle 2 and located at the first air outlet 62, and the fourth plug 5224 being inserted into the fourth jack.

In this embodiment, the fourth jack is provided, so that the connection between the filter screen 5 and the connection block is tighter.

Further, the filter structure comprises a filter cotton structure 51, and the filter cotton structure 51 is connected with the filter screen 5 in a lamination mode.

In this embodiment, the filter cotton structure 51 may be plugged into the first air inlet 61 through its own elastic characteristic, the filter screen 5 is pressed against the filter cotton structure 51, and may be connected with the filter screen 5 by a bonding manner, where the connection manner of the filter structure and the first air inlet 61 is not further limited.

Further, the plurality of plugs 522 form an accommodating space, the filter cotton structure 51 is disposed in the accommodating space, one side wall of the filter cotton structure 51 is abutted with one side wall of the filter screen 5, and the other side wall of the filter cotton structure 51 is abutted with the connecting block.

Specifically, the number of the plugs 522 may be plural. As shown in fig. 5 to 7, the filter screen 5 is substantially elongated, and the plurality of insert blocks 522 are vertically connected to the filter screen 5, respectively, and each of the insert blocks 522 may be connected to the filter screen 5 at an angle of 90 ° so as to be vertically inserted into the insertion hole 13. The number of the plurality of inserting blocks 522 may be four, and the four inserting blocks 522 are equidistantly distributed on the side wall of the filter screen 5 and are connected with the filter screen 5 to form a containing space. The filter cotton structure 51 can be elastically plugged into the accommodating space by the filter cotton structure 51, the side wall of the filter cotton structure 51 is abutted with each plug 522, the top end face of the filter cotton structure 51 is abutted with the filter screen 5, and the bottom end face of the filter cotton structure 51 is abutted with a plurality of connecting blocks.

In this embodiment, the filter cotton structure 51 is embedded at the first air inlet 61 through the elasticity of the filter cotton, so that the fixation of the filter cotton structure 51 can be realized, and the filter cotton structure 51 can occupy the whole space of the first air inlet 61 due to the elasticity, so that the air entering from the first air inlet 61 is filtered.

Further, the filter cotton structure 51 is an activated carbon filter cotton structure 51.

In the embodiment, the activated carbon filter screen 5 is made by loading powdery activated carbon on polyurethane foam, and the carbon content of the activated carbon filter screen is about 35% -50%. Can be widely used for treating organic gases such as benzene, phenols, esters, alcohols, aldehydes and the like, malodorous gases and various gases with low concentration and large air quantity containing trace heavy metals. The waste gas can be directly discharged after being adsorbed, concentrated and purified.

In other embodiments, the filter cotton structure 51 is a fibrous activated carbon filter cotton structure 51.

The fibrous active carbon filter cotton is prepared by taking high-quality powdery active carbon as an adsorption material and adopting a polymer bonding material to carry the high-quality powdery active carbon on a fiber substrate, has good adsorption performance, good formability, high strength and small airflow resistance, and is mainly used in the fields of various household, vehicle air conditioners, air purifiers, water quality purification, gas phase adsorption and the like.

In the embodiment, the activated carbon filter cotton is one of air filter cotton, and the air purification filter material activated carbon sponge prepared by loading powdery catalytic activated carbon with strong medium and adsorption performance on a foaming carrier by adopting a high molecular bonding material is prepared from the activated carbon, wherein the carbon content of the activated carbon is 35-55%, and the activated carbon has high-efficiency adsorption capacity and is mainly used for filtering dust particles and peculiar smell in air. The activated carbon filter cotton is divided into according to the difference of materials: the activated carbon filter cotton, the sandwich activated carbon non-woven fabric and the activated carbon sponge filter screen 5 are mainly used in the fields of various household and vehicle air conditioners, air purifiers, water quality purification, gas phase adsorption and the like. The activated carbon filter cotton in the embodiment is mainly applied to the special air duct filtration of the purified air, strongly adsorbs peculiar smell and odor in the air and dust and pollen particles floating in the air, has good filtration effect and high adsorption speed, and can be added with a sterilization function. Can be widely used for treating benzene, phenol, aldehyde and other VOC gases, filtering and adsorbing impurities.

Further, an outer frame 52 is provided around the periphery of the filter 5, and the insert 522 is provided on the outer frame 52.

Specifically, the outer frame 52 is set according to the shape of the filter screen 5, and the outer frame 52 may be detachably connected with the filter screen 5 by interference fit, adhesion, fastening, and the like, which is not limited herein. For example: the outer frame 52 is connected with the filter screen 5 through interference fit, a plurality of inserting blocks 522 are equidistantly arranged in the outer frame 52, the outer frame 52 is connected with the filter screen 5 to form an accommodating space, and the filter cotton structure 51 is arranged in the accommodating space.

In this embodiment, the filter screen 5 is inserted into the insertion hole 13 through the insertion block 522 disposed on the outer frame 52, so as to be embedded in the first air inlet 61, so that it can be mounted or dismounted from the first air inlet 61, and cleaning of a user is facilitated.

Further, as shown in fig. 6 and 7, the screen 5 has a honeycomb mesh structure.

In this embodiment, when air enters from the first air inlet 61, the pollutant particles, especially the oil drop pollutant particles, cannot pass through the honeycomb net structure, so that the air entering the first air duct 6 contains less pollutant, the cleanness of the air curtain structure of the range hood is ensured, and the technical problem of poor air quality blown out by the air curtain in the prior art is solved. The filter screen 5 may also be other structures capable of blocking the entry of contaminating particles, and the structure of the filter screen 5 is not further limited here.

Further, as shown in fig. 1 to 3, the air curtain structure of the range hood further includes a support plate 41, the support plate 41 is disposed on the baffle 2 and is located in the first air duct 6, and the fan 3 is mounted on the support plate 41.

Preferably, one end of the supporting plate 41 is folded upwards to form a wind shield 42, the wind shield 42 closes the first air outlet 62, the range hood air curtain structure further comprises an air duct cover 43, the air duct cover 43 is arranged on the supporting plate 41 to form a second air duct, the air outlet of the fan 3 is inserted into the air inlet of the second air duct, the wind shield 42 is abutted with the air outlet of the second air duct to close the air outlet of the second air duct, the wind shield 42 is provided with a third air outlet 442, and the air outlet area of the third air outlet 442 is smaller than the air outlet area of the air outlet of the second air duct.

Specifically, the bending angle of the support plate 41 is preferably 90 °.

In this embodiment, the supporting plate 41 and the wind deflector 42 are integrally formed, so that the overall structure is more firm, the wind deflector 42 is arranged to concentrate the wind in the second air duct to the third air outlet 442 for blowing out, and the wind curtain formed under the condition of the same wind quantity is stronger and stronger due to the small air outlet area of the third air outlet 442; the bending angle is preferably 90 degrees, and when the supporting plate 41 is connected to the baffle 2, the wind shield 42 can be tightly abutted against the periphery of the air duct cover 43, so that the supporting plate 41 is convenient to install.

Specifically, as shown in fig. 2, the inner wall of the air curtain cover 1 is provided with a third connecting plate 16, and the wind deflector 42 is connected with the third connecting plate 16 by a screw.

Specifically, the wind guard 42 is provided with at least one screw hole, and the third connecting plate 16 is correspondingly provided with a screw hole, and when each screw hole of the wind guard 42 is aligned with each screw hole of the third connecting plate 16, a screw is screwed into each screw hole to connect the wind guard 42 and the third connecting plate 16.

In this embodiment, the first screw hole, the second screw hole and the third screw hole are arranged in a triangle, and when the wind deflector 42 is connected with the third connecting plate 16, the wind deflector 42 is connected with the third connecting plate 16 more firmly because the triangle-arranged screw holes form a stable structure. The third connecting plate 16 is connected to the wind deflector 42, so that the wind deflector 42 can be firmly covered on the first air outlet 62.

Specifically, the outer wall of the fan 3 is provided with at least one connecting lug 31, a first screw hole is formed in the center of the connecting lug 31, the supporting plate 41 is provided with at least one second screw hole 411, and when the first screw hole and the second screw hole 411 of the connecting lug 31 are aligned, a screw is screwed into the first screw hole and the second screw hole 411 to connect the connecting lug 31 and the supporting plate 41.

Specifically, the air curtain cover 1 is connected with the baffle plate 2 through screws. One end of the air curtain cover 1 is provided with a left ear block 14, the other end of the air curtain cover 1 is provided with a right ear block 15, the left ear block 14 is provided with a left screw hole, and the right ear block 15 is provided with a right screw hole; the screws comprise a left screw and a right screw, the left screw is screwed into the left screw hole and is screwed into the baffle plate 2, the right screw is screwed into the right screw hole and is screwed into the baffle plate 2, and the air curtain cover 1 and the baffle plate 2 are connected.

In this embodiment, air curtain cover 1 passes through the screw and is connected with baffle 2 for air curtain cover 1 can dismantle, when the user need wash, only need with left screw and right screw respectively unscrew baffle 2 then can dismantle air curtain cover 1 and wash, has made things convenient for user's use, has maintained the cleanness of cigarette machine air curtain structure.

As shown in fig. 11, the embodiment of the utility model further provides a range hood, which comprises the range hood air curtain structure.

In the present embodiment, the fan 3 sucks air from the first air inlet 61 of the air curtain structure of the range hood, and blows the air from the first air outlet 62, and the blown air forms an air curtain, so that the oil smoke generated by the range is separated from a user during cooking; meanwhile, as the first air inlet 61 is provided with the filtering structure, when the first air inlet 61 sucks air, unclean matters contained in air, particularly oil smoke, are filtered, the formed air curtain is clean and sanitary, and the technical problem of poor air quality blown out by the air curtain in the prior art is solved.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. The utility model provides a lampblack absorber air curtain structure which characterized in that: comprises an air curtain cover (1), a baffle (2), a fan (3) and a filtering structure;

the air curtain cover (1) is arranged on the baffle (2) and forms a first air channel (6) with the baffle (2), a first air inlet (61) is formed in one end of the first air channel (6), and a first air outlet (62) is formed in the other end of the first air channel (6);

the filtering structure is embedded in the first air inlet (61);

the fan (3) is arranged in the first air duct (6).

2. The air curtain structure of the range hood according to claim 1, wherein: the filter structure comprises a filter screen (5), a plurality of inserting blocks (522) are arranged on one side wall of the filter screen (5), a plurality of connecting blocks are arranged on the inner side wall of the first air inlet (61), inserting holes (13) are formed in the connecting blocks, and the inserting blocks (522) are inserted into the inserting holes (13) and connected with the connecting blocks.

3. The air curtain structure of the range hood according to claim 2, wherein: the filter structure comprises a filter cotton structure (51), and the filter cotton structure (51) is connected with the filter screen (5) in a laminated mode.

4. A range hood air curtain structure as recited in claim 3, wherein: the plurality of inserting blocks (522) form an accommodating space, the filter cotton structure (51) is arranged in the accommodating space, one side wall of the filter cotton structure (51) is abutted with one side wall of the filter screen (5), and the other side wall of the filter cotton structure (51) is abutted with the connecting block.

5. The air curtain structure of the range hood according to claim 2, wherein: an outer frame (52) is arranged on the periphery of the filter screen (5), and the insert blocks (522) are arranged on the outer frame (52).

6. The air curtain structure of the range hood according to claim 2, wherein: the filter screen (5) is of a honeycomb net structure.

7. A range hood air curtain structure as recited in claim 3, wherein: the filter cotton structure (51) is an active carbon filter cotton structure (51).

8. The air curtain structure of the range hood according to claim 1, wherein: the range hood air curtain structure further comprises a supporting plate (41), the supporting plate (41) is arranged in the baffle plate (2) and located in the first air duct (6), and the fan (3) is installed on the supporting plate (41).

9. The air curtain structure of the range hood according to claim 8, wherein: one end of backup pad (41) upwards rolls over and forms deep bead (42), deep bead (42) are closed first air outlet (62), lampblack absorber air curtain structure still includes wind channel lid (43), wind channel lid (43) are located backup pad (41) forms the second wind channel, the air outlet of fan (3) inserts the air intake of second wind channel, deep bead (42) with the air outlet butt in second wind channel, closure the air outlet in second wind channel, deep bead (42) are equipped with third air outlet (442), the air-out area of third air outlet (442) is less than the air-out area of the air outlet in second wind channel.

10. The utility model provides a lampblack absorber which characterized in that: a range hood air curtain structure comprising any one of claims 1 to 9.