CN220892334U - Thin range hood - Google Patents

Abstract

The embodiment of the application discloses a thin range hood, which comprises a box body and a plurality of centrifugal fans, wherein the box body comprises a top plate, a bottom plate and side plates, wherein the top plate and the bottom plate are oppositely arranged along the thickness direction of the box body, the side plates are connected with the top plate and the bottom plate, a containing cavity is commonly surrounded by the top plate, the bottom plate and the side plates, and the box body is also provided with a smoke suction opening and an air exhaust opening which are communicated with the containing cavity; the centrifugal fans are all installed in the accommodating cavity, the thickness direction of the centrifugal fans is parallel to the thickness direction of the box body, at least two fans are arranged along the length direction of the box body, or components parallel to the length direction of the box body exist in the arrangement direction of the at least two centrifugal fans, the centrifugal fans are provided with air inlets communicated with the smoking openings and air outlets communicated with the air outlet, the centrifugal fans are arranged in the accommodating cavity, and compared with the centrifugal fans, the suction capacity of the thin range hood can be improved, and the smoking effect of the thin range hood can be improved.

Description

Thin range hood

Technical Field

The application relates to the technical field of range hoods, in particular to a thin range hood.

Background

With the improvement of the living standard of people, the demands for avoiding the damage of oil smoke in the cooking process are increasing, and the range hood gradually becomes an essential household appliance for purifying the kitchen environment.

In the related technical field, a fan is often arranged in the range hood, but the suction effect of the fan is poor for the thin range hood, and the fan is insufficient for coping with the cooking environment.

Disclosure of utility model

The embodiment of the application provides a thin type range hood, which aims to arrange a plurality of centrifugal fans in a containing cavity so as to improve the sucking capacity of the thin type range hood and further improve the smoking effect of the thin type range hood.

The embodiment of the application provides a thin range hood, which comprises a box body and a plurality of centrifugal fans, wherein the box body comprises a top plate, a bottom plate and side plates, wherein the top plate and the bottom plate are oppositely arranged along the thickness direction of the box body, the side plates are connected with the top plate and the bottom plate, a containing cavity is commonly surrounded by the top plate, the bottom plate and the side plates, and the box body is also provided with a smoke suction opening and an air exhaust opening which are communicated with the containing cavity; the centrifugal fans are all installed in the accommodating cavity, the thickness direction of the centrifugal fans is parallel to the thickness direction of the box body, at least two fans are arranged along the length direction of the box body, or components parallel to the length direction of the box body exist in the arrangement direction of the at least two centrifugal fans, and the centrifugal fans are provided with an air inlet communicated with the smoking opening and an air outlet communicated with the air outlet.

Based on the embodiment, the plurality of centrifugal fans are arranged in the accommodating cavity, and the thickness direction of the centrifugal fans is parallel to the thickness direction of the box body, so that the thickness of the thin type range hood can be reduced, the thickness of the thin type range hood is thinner, and the installation and the transportation of the thin type range hood are facilitated; and a plurality of centrifugal fans are arranged in the accommodating cavity, so that compared with one centrifugal fan, the suction capacity of the thin range hood can be improved, and the smoking effect of the thin range hood can be improved. The at least two release fans are arranged along the length direction of the box body, or components parallel to the length direction of the box body exist in the arrangement direction of the at least two centrifugal fans, and in the embodiment of the application, the arrangement mode of the plurality of centrifugal fans is not limited.

In some embodiments, the smoking opening is formed by the base plate and the side plate in a surrounding manner, and the air outlet is formed on the side plate; the air inlets of the plurality of centrifugal fans are arranged towards the smoking opening, and the air outlet directions of the air outlets of the plurality of centrifugal fans are all directed towards the air outlet.

Based on the above embodiment, the air inlets of the centrifugal fans are all arranged towards the smoke absorbing opening, so that negative pressure can be formed at the smoke absorbing opening conveniently, so that lampblack can be absorbed into the thin lampblack absorber through the smoke absorbing opening, and the air outlets of the centrifugal fans are all directed towards the air outlet, so that the probability of collision between the air outlets of the centrifugal fans and the top plate and/or the bottom plate and/or the side plate can be reduced, the probability of collision noise can be reduced, and the noise of the thin lampblack absorber can be reduced.

In some embodiments, the plurality of centrifugal fans are arranged in a straight line or in an arc along the length direction of the box.

In some embodiments, the plurality of centrifugal fans include two first fans and one or more second fans, the two first fans are located at two ends of all the centrifugal fans in the length direction of the box body, and the air outlets of the first fans are first air outlets; the second fans are positioned between the two first fans, and the air outlets of the second fans are second air outlets; the air outlet directions of the two first air outlets are directed at the air outlet at an angle which is non-perpendicular to the plane where the air outlet is located, and the plurality of second fans are arranged in a straight line or in an arc shape along the length direction of the box body.

In some embodiments, the plurality of second fans are linearly arranged along the length direction of the box body, the air outlet direction of the second air outlet points to the air outlet at an angle perpendicular to the plane of the air outlet, a first included angle is formed between the air outlet direction of the first air outlet and the air outlet direction of the second air outlet, and the first included angle is greater than or equal to 5 degrees and less than or equal to 60 degrees.

Based on the above embodiment, since the first included angle is greater than or equal to 5 ° and less than or equal to 60 °, the air outlet direction of the first fan can be directed to the air outlet as far as possible, so as to reduce the probability of collision between the air outlet of the first fan and the side wall of the box, reduce the probability of collision noise, and further reduce the noise of the thin range hood. If the first included angle is larger than 60 degrees, the probability of collision between the air outlet of the first air outlet and the air outlet of the second air outlet is larger, and the probability of collision noise is larger. If the first included angle is smaller than 5 degrees, the probability that the air outlet of the first air outlet collides with the side wall of the box body is larger due to the fact that the first included angle is smaller, and the probability that collision noise is generated is larger.

In some embodiments, the thin range hood further comprises a flow guiding component, wherein the flow guiding component is arranged between the centrifugal fan and the air outlet and is provided with a flow guiding channel, and the flow guiding channel is communicated with all air outlets and the same air outlet.

Based on the above embodiment, the air outlet and the air outlet are communicated by the flow guide channel formed by the flow guide assembly, so that the air flow discharged from the air outlet can be guided to be discharged outside the box body through the air outlet.

In some embodiments, the flow guiding assembly includes two side shells disposed opposite to each other along a length direction of the box, a first distance is provided between the two side shells along the length direction of the box, and the first distance gradually decreases along a direction in which the second air outlet points to the air outlet.

Based on the above embodiment, since the first distance gradually decreases in the direction along the first air outlet toward the air outlet, the air flow can be smoothly guided to move toward the air outlet, so as to reduce the aerodynamic noise of the air flow, and thus the noise of the thin range hood can be reduced.

In some embodiments, the air outlet has a first length along the length direction of the box body, and the first distance gradually decreases to be less than or equal to the first length; and/or the side shell is provided with an extending direction pointing to the air outlet from the first air outlet, the air outlet direction of the first fan and the extending direction form a second included angle, and the second included angle is larger than or equal to 0 and smaller than or equal to 60 degrees; and/or, the flow guide assembly further comprises a bottom shell which is arranged opposite to the top plate along the thickness direction of the box body, and a flow guide channel is defined by the bottom shell, the two side shells and the top plate of the box body.

Based on the embodiment, the air outlet has the first length along the length direction of the box body, and the first distance is gradually reduced to be smaller than or equal to the first length, so that the air flow can be prevented from impacting the inner wall of the diversion channel at the air outlet, the probability of collision noise is reduced, and the noise of the thin range hood can be reduced; the second included angle is larger than or equal to 0 and smaller than or equal to 60 degrees, so that the probability of collision between the airflow in the diversion channel and the side shell can be reduced, and noise of the thin range hood is reduced. If the second included angle is larger than 60 degrees, the air outlet of the first fan and the air outlet of the second fan are easy to collide, collision noise is easy to generate, and therefore noise of the thin range hood is large.

In some embodiments, the flow guiding assembly comprises a first flow guiding member and a second flow guiding member, wherein the first flow guiding member is arranged in the accommodating cavity and is provided with a first flow channel; the second flow guide piece is arranged in the accommodating cavity and is provided with a second flow channel, a plurality of air outlets, the second flow channel and the first flow channel are sequentially communicated, and the flow guide channel comprises the first flow channel and the second flow channel; the first flow guiding piece is a metal piece, and the second flow guiding piece is at least one of a metal piece, a plastic piece and a rubber piece; or the first flow guiding piece and the second flow guiding piece are integrally formed.

Based on the embodiment, the flow guide channel formed by the first flow channel and the second flow channel is utilized to guide the movement direction of the air flow, so that the air flow is convenient to separate from the box body from the air outlet; the first guide piece and the second guide piece are respectively processed and then assembled, so that the die volume for processing the guide component can be reduced, the manufacturing cost of the guide component is reduced, and the processing time can be reduced by respectively processing and then assembling the first guide piece and the second guide piece, so that the processing efficiency of the guide component is improved. If the first flow guiding piece and the second flow guiding piece are integrally formed, the first flow guiding piece and the second flow guiding piece can have higher structural strength, so that the damage probability of the flow guiding component is reduced, the flow guiding component can have longer service life, and the thin range hood has longer service life.

In some of these embodiments, the low profile range hood further includes an illumination device mounted to the floor and partially embedded in the second baffle.

Based on the embodiment, the lighting device is arranged on the bottom plate and is partially embedded in the second guide piece, so that the lighting device is ensured not to be convexly arranged on the outer surface of the thin range hood, and the thickness of the thin range hood is reduced.

In some embodiments, the air guiding assembly further includes a third air guiding member disposed in the air guiding channel and disposed closer to the air outlet than the air outlet, and the third air guiding member is configured to guide the air flow in the air guiding channel to the air outlet.

Based on the embodiment, the third flow guide piece is used for guiding the air flow to be separated from the box body from the air outlet, so that the probability of the air flow striking the inner wall of the box body is reduced, the probability of striking noise is reduced, and the noise of the thin range hood is reduced.

In some embodiments, the thin range hood further comprises an opening and closing component, wherein the opening and closing component is arranged at the air outlet and is rotationally connected with the inner wall of the air outlet, and the opening and closing component has an opening and closing angle which is larger than or equal to 0 and smaller than or equal to 180 degrees compared with the plane of the air outlet; and/or the exhaust port is communicated with indoor air, the thin range hood further comprises a filter assembly arranged at the smoke suction port, the filter assembly comprises an inner support frame, an outer support frame and a filter element, and the inner support frame is detachably connected with the bottom plate and/or the side plate; the outer support frame is detachably connected with the inner support frame; the filter core is arranged between the inner supporting frame and the outer supporting frame in a clamping way.

Based on the embodiment, the air quantity of the air outlet can be changed by adjusting the opening and closing angle, and the air outlet can be closed by using the opening and closing assembly when the thin type range hood is not used, so that sundries are prevented from falling into the thin type range hood from the air outlet, the damage probability of the thin type range hood can be reduced, and the thin type range hood has longer service life.

The filter assembly can filter fluid entering the thin range hood through the smoke suction port so as to filter indoor air, and thus the internal circulation of the indoor air can be realized.

In some embodiments, the thin range hood further comprises a decorative cover plate, the decorative cover plate is connected with the outer surface of the box body, which is provided with an air outlet, the decorative cover plate is provided with an avoidance opening, and the avoidance opening is arranged corresponding to the air outlet; and/or, the thin range hood further comprises an electric control box, wherein the electric control box is arranged in the accommodating cavity, is arranged on one side of all the centrifugal fans along the length direction of the box body, and is electrically connected with each centrifugal fan.

Based on the thin type range hood, the plurality of centrifugal fans are arranged in the accommodating cavity, and compared with one centrifugal fan, the suction capacity of the thin type range hood can be improved, and the smoking effect of the thin type range hood can be improved.

Drawings

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

Fig. 1 is a schematic structural view of a thin range hood according to an embodiment of the present application;

fig. 2 is an exploded view of a thin range hood according to an embodiment of the present application;

fig. 3 is a schematic view of a partial structure of a thin range hood according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a filter assembly according to an embodiment of the application.

Reference numerals illustrate: 1. thin range hood; 11. a case; 11A, a containing cavity; 11B, a smoking port; 11C, an air outlet; 111. a top plate; 112. a bottom plate; 113. a side plate; 12. a centrifugal fan; 12A, an air inlet; 12B, an air outlet; 13. a first fan; 13A, a first air outlet; 14. a second fan; 14A, a second air outlet; 15. a flow guiding assembly; 15A, a diversion channel; 151. a bottom case; 152. a side case; 153. a first flow guide; 153A, first flow channel; 154. a second flow guide; 154A, a second flow channel; 155. a third flow guide; 16. a lighting device; 17. an opening and closing assembly; 18. a filter assembly; 181. an inner support; 182. an outer support; 183. a filter element; 19. a decorative cover plate; 19A, an avoidance port; 20. an electric control box; alpha, a first included angle; beta, a second included angle; l1, a first distance; l2, a first length; x, length direction; y, thickness direction.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Referring to fig. 1 and 2, an embodiment of the present application provides a thin range hood 1, which includes a box 11 and a plurality of centrifugal fans 12.

The case 11 includes a top plate 111 and a bottom plate 112 which are disposed opposite to each other along a thickness direction Y of the case 11, and a side plate 113 connected to the top plate 111 and the bottom plate 112, wherein the top plate 111, the bottom plate 112, and the side plate 113 together define a housing chamber 11A, and the case 11 further includes a smoke suction port 11B and an air discharge port 11C which are both communicated with the housing chamber 11A. The material of the box 11 may be, but not limited to, plastic or metal, and the material of the specific box 11 may be metal, so that the box 11 may have higher structural strength, thereby reducing the probability of damage of the box 11, protecting other parts disposed in the box 11, and further enabling the thin range hood 1 to have longer service life.

The centrifugal fan 12 is disposed in the accommodating cavity 11A, the centrifugal fan 12 has a housing and fan blades disposed in the housing, the housing has an air inlet 12A communicating with the smoke suction port 11B and an air outlet 12B communicating with the air outlet 11C, so that negative pressure is formed at the smoke suction port 11B to suck air from the smoke suction port 11B into the housing and discharge the air from the air outlet 11C. The thickness direction Y of the casing is parallel to the thickness direction Y of the case 11, so that the thickness of the case 11 itself can be reduced, so that the thin range hood 1 is thinner and lighter, and the thin range hood 1 is convenient to install and transport. Illustratively, the material of the housing may be, but is not limited to, metal or plastic.

In the embodiment of the application, the plurality of centrifugal fans 12 are arranged in the accommodating cavity 11A, and the thickness direction Y of the centrifugal fans 12 is parallel to the thickness direction Y of the box 11, so that the thickness of the thin type range hood 1 can be reduced, the thickness of the thin type range hood 1 is thinner, and the installation and the transportation of the thin type range hood 1 are facilitated; compared with a centrifugal fan 12, the suction capacity of the thin type range hood 1 can be improved by arranging a plurality of centrifugal fans 12 in the accommodating cavity 11A, and the smoking effect of the thin type range hood 1 can be improved. For example, at least two release fans are arranged along the length direction X of the box 11, or at least two centrifugal fans 12 are arranged along a direction parallel to the length direction X of the box 11, and in the embodiment of the present application, the arrangement manner of the plurality of centrifugal fans 12 is not limited.

Referring to fig. 1 and 2, in a specific embodiment, a smoke exhaust port 11B is formed in the bottom plate 112 or formed by surrounding the bottom plate 112 and the side plate 113, and an air exhaust port 11C is formed in the side plate 113; the air inlets 12A of the centrifugal fans 12 are arranged towards the smoke absorbing openings 11B, so that negative pressure can be formed at the smoke absorbing openings 11B, smoke can be absorbed into the thin type range hood 1 through the smoke absorbing openings 11B, the air outlet directions of the air outlets 12B of the centrifugal fans 12 are all directed towards the air outlet 11C, the collision probability of the air outlet of the centrifugal fans 12 with the top plate 111 and/or the bottom plate 112 and/or the side plate 113 can be reduced, the collision noise generation probability can be reduced, and the noise of the thin type range hood 1 can be reduced.

Referring to fig. 1 and 2, in a specific embodiment, a plurality of centrifugal fans 12 may be arranged linearly along a length direction X of the box 11; in other embodiments, the centrifugal fans 12 may be arranged in an arc shape along the length direction X of the box 11; in the embodiment of the present application, the arrangement manner of the plurality of centrifugal fans 12 is not particularly limited.

Referring to fig. 1 and 2, in a specific embodiment, the plurality of centrifugal fans 12 includes two first fans 13 and one or more second fans 14, the two first fans 13 are located at two ends of all the centrifugal fans 12 in the length direction X of the box 11, and the air outlets 12B of the first fans 13 are first air outlets 13A; the second fans 14 are positioned between the two first fans 13, and the air outlets 12B of the second fans 14 are second air outlets 14A; the air outlet directions of the two first air outlets 13A are directed to the air outlet 11C at an angle non-perpendicular to the plane of the air outlet 11C, and the plurality of second fans 14 are arranged in a straight line along the length direction X of the box 11, so that the plurality of second fans 14 can face the air outlet 11C to air out, so that the air out of the air outlet 11C is smoother, the collision noise of the air flow striking the air outlet 11C is reduced, and the noise of the thin range hood 1 is further reduced. It is to be understood that the plurality of second fans 14 may also be arranged in an arc shape, and in the embodiment of the present application, the arrangement manner of the second fans 14 is not particularly limited.

Referring to fig. 2 and 3, in a specific embodiment, the plurality of second fans 14 are arranged in a straight line along the length direction X of the box 11, and the air outlet direction of the second air outlet 14A is directed to the air outlet 11C at an angle perpendicular to the plane of the air outlet 11C, and a first included angle α is formed between the air outlet direction of the first air outlet 13A and the air outlet direction of the second air outlet 14A, where the first included angle α is greater than or equal to 5 ° and less than or equal to 60 °, so that the air outlet direction of the first fan 13 is directed to the air outlet 11C as much as possible, so as to reduce the probability of collision between the air outlet of the first fan 13 and the side wall of the box 11, reduce the probability of collision noise, and further reduce the noise of the thin range hood 1. If the first included angle α is greater than 60 °, the probability of collision between the air outlet of the first air outlet 13A and the air outlet of the second air outlet 14A is greater, and the probability of collision noise is greater. If the first included angle α is smaller than 5 °, the probability of collision between the air outlet of the first air outlet 13A and the side wall of the box 11 is larger due to the smaller first included angle α, and the probability of collision noise is larger.

Referring to fig. 2 and 3, in a specific embodiment, the thin range hood 1 further includes a flow guiding assembly 15, the flow guiding assembly 15 is disposed between the centrifugal fan 12 and the air outlet 11C, the flow guiding assembly 15 has a flow guiding channel 15A, and the flow guiding channel 15A communicates all the air outlets 12B and the same air outlet 11C, so that the air flow discharged from the air outlet 12B can be guided to be discharged outside the box 11 through the air outlet 11C. Specifically, the flow guiding assembly 15 further includes a bottom case 151 disposed opposite to the top plate 111 along the thickness direction Y of the box 11, and the bottom case 151, the two side cases 152, and the top plate 111 of the box 11 together enclose a flow guiding channel 15A. It can be appreciated that the diversion channel 15A may be enclosed by the two side shells 152 together with the top plate 111, the bottom plate 112 and the side plates 113, and may also guide the movement of the air flow, so as to reduce the aerodynamic noise, thereby reducing the noise of the thin range hood 1. In the embodiment of the present application, the specific form of the diversion channel 15A is not limited.

Referring to fig. 2 and 3, in a specific embodiment, the flow guiding assembly 15 includes two side cases 152 disposed opposite to each other along the length direction X of the box 11, a first distance L1 is provided between the two side cases 152 along the length direction X of the box 11, and the first distance L1 gradually decreases along the direction in which the second air outlet 14A points to the air outlet 11C, so that the air flow can be smoothly guided to move toward the air outlet 11C to reduce the pneumatic noise of the air flow, and thus the noise of the thin range hood 1 can be reduced.

Referring to fig. 2 and 3, in a specific embodiment, along the length direction X of the box 11, the air outlet 11C has a first length L2, and the first distance L1 gradually decreases to be less than or equal to the first length L2, so that the air flow is prevented from striking the inner wall of the accommodating cavity 11A at the air outlet 11C, so as to reduce the probability of generating collision noise, and further reduce the noise of the thin range hood 1.

Referring to fig. 2 and 3, in a specific embodiment, the side casing 152 has an extending direction from the first air outlet 13A to the air outlet 11C, and the air outlet direction of the first fan 13 forms a second included angle β with the extending direction, and the second included angle β is greater than or equal to 0 and less than or equal to 60 °, so that the probability of collision between the air flow in the diversion channel 15A and the diversion channel 15A can be reduced, and the probability of collision noise is reduced, so as to reduce the noise of the thin range hood 1. If the second included angle β is greater than 60 °, the included angle between the air outlet direction of the first fan 13 and the air outlet direction of the second fan 14 is too large, so that the air outlet of the first fan 13 and the air outlet of the second fan 14 are easy to collide, and collision noise is easy to generate, so that the noise of the thin range hood 1 is large.

Referring to fig. 2, in a specific embodiment, the flow guiding assembly 15 includes a first flow guiding member 153 and a second flow guiding member 154, where the first flow guiding member 153 is disposed in the accommodating cavity 11A and has a first flow channel 153A; the second flow guiding member 154 is disposed in the accommodating cavity 11A, and has a second flow channel 154A, and a plurality of air outlets 12B, the second flow channel 154A, and the first flow channel 153A are sequentially connected, and the flow guiding channel 15A includes the first flow channel 153A and the second flow channel 154A, so as to guide the movement direction of the air flow, and facilitate the air flow to separate from the box 11 from the air outlet 11C. The first guide member 153 and the second guide member 154 are respectively processed and then assembled, so that the die volume for processing the guide assembly 15 can be reduced, the manufacturing cost of the guide assembly 15 is reduced, and the first guide member 153 and the second guide member 154 are respectively processed and then assembled, so that the processing time can be reduced, and the processing efficiency of the guide assembly 15 is improved.

The case 11 is made of metal, and when the first guide member 153 is made of metal, the case 11 may be screwed or welded to the first guide member 153 to improve connection stability between the case 11 and the first guide member 153, and when the case is screwed, in order to prevent air leakage at a joint between the case 11 and the first guide member 153, a sealing ring may be disposed at the joint, so as to improve connection tightness between the case 11 and the first guide member 153. The second guiding member 154 may be at least one of a metal member, a plastic member or a rubber member, and the second guiding member 154 may be connected with the housing, the first guiding member 153 and the case 11 by bolts, so as to improve connection tightness between the second guiding member 154 and the housing, the first guiding member 153 and the case 11, and a sealing ring may be disposed at a joint between the second guiding member 154 and the housing.

Referring to fig. 2, in other embodiments, the first guide member 153 and the second guide member 154 may be integrally formed, so that the first guide member 153 and the second guide member 154 have higher structural strength to reduce the probability of damage of the guide assembly 15, and further the guide assembly 15 has a longer service life, so that the thin range hood 1 has a longer service life. For example, the first guide 153 and the second guide 154 may be made of the same metal plate through a bending process, or may be integrally formed through an injection molding process. In the embodiment of the present application, the specific forms of the first guide 153 and the second guide 154 are not limited.

Referring to fig. 2, in a specific embodiment, the thin-type range hood 1 further includes a lighting device 16, the lighting device 16 can provide lighting services for a user, the lighting device 16 is mounted on the bottom plate 112 and partially embedded in the second guiding element 154, so as to ensure that the lighting device 16 is not protruding from the outer surface of the thin-type range hood 1, so as to reduce the thickness of the thin-type range hood 1.

Referring to fig. 2, in a specific embodiment, the flow guiding assembly 15 further includes a third flow guiding member 155, the third flow guiding member 155 is disposed in the flow guiding channel 15A and is disposed closer to the air outlet 11C than the air outlet 12B, the third flow guiding member 155 is used for guiding the air flow in the flow guiding channel 15A to the air outlet 11C, and the air flow is guided by the third flow guiding member 155 to separate from the box 11 from the air outlet 11C, so as to reduce the probability of the air flow striking the inner wall of the box 11, thereby reducing the probability of striking noise, and reducing the noise of the thin range hood 1. Illustratively, the third deflector 155 may have a deflector surface that is at least one of planar or curved.

Referring to fig. 2, in a specific embodiment, the thin type range hood 1 further includes an opening and closing component 17, where the opening and closing component 17 is disposed at the air outlet 11C and is rotationally connected with the inner wall of the air outlet 11C, the opening and closing component 17 has an opening and closing angle greater than or equal to 0 and less than or equal to 180 ° compared with the plane of the air outlet 11C, by adjusting the opening and closing angle, the air volume of the air outlet 11C can be changed, and when the thin type range hood 1 is not in use, the air outlet 11C can be closed by using the opening and closing component 17, so as to prevent impurities from falling into the thin type range hood 1 from the air outlet 11C, thereby reducing the damage probability of the thin type range hood 1 and prolonging the service life of the thin type range hood 1.

Referring to fig. 2 and 4, in a specific embodiment, the exhaust port 11C is in communication with indoor air, the thin-type range hood 1 further includes a filter assembly 18 disposed at the smoke suction port 11B, and the filter assembly 18 can filter fluid entering the thin-type range hood 1 through the smoke suction port 11B so as to filter indoor air, thereby realizing indoor air circulation.

Referring to fig. 2 and 4, further, the filter assembly 18 includes an inner support frame 181, an outer support frame 182, and a filter element 183, wherein the inner support frame 181 is detachably connected to the bottom plate 112 and/or the side plate 113; the outer support frame 182 is detachably connected with the inner support frame 181; the filter element 183 is clamped between the inner supporting frame 181 and the outer supporting frame 182, so that the filter assembly 18 can be conveniently detached from the bottom plate 112 and/or the side plate 113, and then the outer supporting frame 182 and the inner supporting frame 181 are detached, so that the filter element 183 can be taken out to replace or clean the filter element 183, and further the replaced new filter element 183 or the clean filter element 183 can continuously filter fluid entering the thin range hood 1 through the smoking port 11B, so that indoor air can be conveniently filtered, and the internal circulation of indoor air can be realized. Illustratively, the detachable connection between the inner support frame 181 and the bottom plate 112 and/or the side plate 113 includes, but is not limited to, a screw or a snap-fit connection, and the detachable connection between the outer support frame 182 and the inner support frame 181 includes, but is not limited to, a screw or a snap-fit connection.

It is understood that the filter element 183 may be activated carbon or other oil-absorbing and water-absorbing materials, so as to absorb at least one of oil smoke, water vapor and odor mixed in the air flow, thereby purifying indoor air and improving life quality of users through internal circulation.

Referring to fig. 2, in a specific embodiment, the thin range hood 1 further includes a decorative cover plate 19, the decorative cover plate 19 is connected to an outer surface of the case 11 having an air outlet 11C, the decorative cover plate 19 has an avoidance opening 19A, and the avoidance opening 19A is disposed corresponding to the air outlet 11C, so that the air outlet 11C can exhaust air, and the decorative cover plate 19 may be an operation panel. The material of the decorative cover plate 19 may be glass or plastic, and the connection mode of the decorative cover plate 19 and the box 11 includes, but is not limited to, screwing, clamping or gluing.

Referring to fig. 2, in a specific embodiment, the thin range hood 1 further includes an electrical control box 20, where the electrical control box 20 is disposed in the accommodating cavity, is disposed on one side of all the centrifugal fans 12 along the length direction X of the box 11, and is electrically connected to each of the centrifugal fans 12 for controlling the operation of the centrifugal fans 12.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present application and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present application, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims (13)

1. A thin range hood, comprising:

The box body comprises a top plate, a bottom plate and side plates, wherein the top plate and the bottom plate are oppositely arranged in the thickness direction of the box body, the side plates are connected with the top plate and the bottom plate, the top plate, the bottom plate and the side plates jointly enclose a containing cavity, and the box body is also provided with a smoking opening and an air outlet which are communicated with the containing cavity;

The centrifugal fans are arranged in the accommodating cavity, the thickness direction of each centrifugal fan is parallel to the thickness direction of the box body, at least two fans are arranged along the length direction of the box body, or components parallel to the length direction of the box body exist in the arrangement direction of at least two centrifugal fans, and each centrifugal fan is provided with an air inlet communicated with the smoking opening and an air outlet communicated with the air outlet.

2. The thin range hood according to claim 1, wherein the smoke exhaust port is formed in the bottom plate or formed by the bottom plate and the side plate in a surrounding manner, and the air exhaust port is formed in the side plate;

The air inlets of the centrifugal fans are arranged towards the smoking openings, and the air outlet directions of the air outlets of the centrifugal fans are all directed towards the air outlet.

3. The thin-type range hood according to claim 2, wherein a plurality of the centrifugal fans are arranged in a straight line or in an arc shape along the length direction of the case.

4. The low profile range hood of claim 1, wherein a plurality of said centrifugal fans comprise:

The two first fans are positioned at two ends of all the centrifugal fans in the length direction of the box body, and air outlets of the first fans are first air outlets;

The second fans are positioned between the two first fans, and air outlets of the second fans are second air outlets;

The air outlet directions of the two first air outlets are directed at the air outlet at an angle which is non-perpendicular to the plane where the air outlet is located, and the second fans are arranged in a straight line or in an arc shape along the length direction of the box body.

5. The thin range hood according to claim 4, wherein the plurality of second fans are arranged in a straight line along the length direction of the box, and the air outlet direction of the second air outlet is directed at the air outlet at an angle perpendicular to the plane of the air outlet, and a first included angle is formed between the air outlet direction of the first air outlet and the air outlet direction of the second air outlet, and the first included angle is greater than or equal to 5 ° and less than or equal to 60 °.

6. The low profile range hood of claim 5, further comprising:

The flow guiding assembly is arranged between the centrifugal fan and the air outlet and is provided with a flow guiding channel which is communicated with all the air outlets and the same air outlet.

7. The low profile range hood of claim 6, wherein said deflector assembly comprises:

The two side shells are oppositely arranged along the length direction of the box body, a first distance is reserved between the two side shells in the length direction of the box body, the second air outlet points to the air outlet, and the first distance is gradually reduced.

8. The thin range hood according to claim 7, wherein,

The air outlet is provided with a first length along the length direction of the box body, and the first distance is gradually reduced to be smaller than or equal to the first length; and/or

The side shell is provided with an extending direction pointing to the exhaust outlet from the first air outlet, a second included angle is formed between the air outlet direction of the first fan and the extending direction, and the second included angle is larger than or equal to 0 and smaller than or equal to 60 degrees; and/or

The flow guide assembly further comprises a bottom shell which is arranged opposite to the top plate along the thickness direction of the box body, and the bottom shell, the two side shells and the top plate of the box body jointly enclose the flow guide channel.

9. The low profile range hood of claim 6, wherein said deflector assembly comprises:

the first flow guide piece is arranged in the accommodating cavity and is provided with a first flow passage;

the second flow guide piece is arranged in the accommodating cavity and is provided with a second flow channel, a plurality of air outlets, the second flow channels and the first flow channels are sequentially communicated, and the flow guide channel comprises the first flow channels and the second flow channels;

The first flow guiding piece is a metal piece, and the second flow guiding piece is one or a combination of at least two of the metal piece, the plastic piece and the rubber piece; or the first flow guiding piece and the second flow guiding piece are integrally formed.

10. The low profile range hood of claim 9, further comprising:

And the lighting device is arranged on the bottom plate and is partially embedded into the second flow guide piece.

11. The low profile range hood of claim 6, wherein the deflector assembly further comprises:

The third flow guiding piece is arranged in the flow guiding channel and is closer to the air outlet than the air outlet, and the third flow guiding piece is used for guiding the air flow in the flow guiding channel to the air outlet.

12. The thin range hood of claim 1, further comprising:

The opening and closing component is arranged at the air outlet and is rotationally connected with the inner wall of the air outlet, and compared with the plane of the air outlet, the opening and closing component has an opening and closing angle which is more than or equal to 0 and less than or equal to 180 degrees; and/or

The exhaust port is communicated with indoor air, the thin range hood further comprises a filter assembly arranged at the smoking port, and the filter assembly comprises:

the inner supporting frame is detachably connected with the bottom plate and/or the side plate;

The outer support frame is detachably connected with the inner support frame;

The filter element is clamped between the inner support frame and the outer support frame.

13. The low profile range hood of any one of claims 1-12, further comprising:

The decorative cover plate is connected with the outer surface of the box body, which is provided with the air outlet, and is provided with an avoidance opening, and the avoidance opening is arranged corresponding to the air outlet; and/or

The electric control box is arranged in the accommodating cavity, is arranged on one side of all the centrifugal fans along the length direction of the box body, and is electrically connected with each centrifugal fan.