Range hood

Abstract

The range hood comprises a machine shell, an upper flow guide plate and a condensation plate, an upper oil smoke suction cavity is defined by the machine shell, the upper flow guide plate is provided with an upper oil smoke suction part, the condensation plate is arranged below the upper flow guide plate, the projection of the condensation plate on the upper flow guide plate covers at least part of the upper oil smoke suction part, and a gap is formed between the condensation plate and the upper flow guide plate. The gap is communicated with the upper oil smoke suction part and the external space of the range hood. According to the range hood disclosed by the embodiment of the utility model, the condensation plate is arranged, namely, a solid barrier is arranged between the human ear and the fan of the range hood, so that the direct radiation of a sound field at the position can be reduced, that is, the working noise at the height of the ear when a user stands is reduced, and the use experience of the user is favorably improved; and the condensation plate can also prevent the oil from flowing out of the range hood and dripping on a cooking bench.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a range hood. Background Art

[0002] In the range hood of the related art, oil smoke can enter the oil smoke chamber from the upper oil smoke intake port under the action of the fan. Since the opening area of ​​the upper oil smoke intake port is larger, the amount of oil smoke entering there is increased, and the height of the upper oil smoke intake port is close to the ear height of the user when standing, which will inevitably increase the working noise and affect the user experience. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a range hood that can reduce the working noise at the height of the ears of a user when standing, improve the sound quality of the range hood when working, and thus help to enhance the user's experience.

[0004] The range hood according to the embodiment of the utility model includes: a casing, the casing defines an upper oil fume suction chamber with a bottom opening; an upper guide plate, the upper guide plate is connected to the casing and covers the bottom opening, the upper guide plate has an upper oil fume suction part connected to the upper oil fume suction chamber; a condensation plate, the condensation plate is arranged below the upper guide plate and its projection on the upper guide plate covers at least a portion of the upper oil fume suction part, a gap is provided between the condensation plate and the upper guide plate, the gap connects the upper oil fume suction part and the external space of the range hood.

[0005] According to the range hood of the embodiment of the utility model, by arranging a condensation plate below the upper guide plate with the upper oil fume suction part, the upper oil fume suction part can be at least partially shielded, the original air pressure field at this position is changed, so that the oil fume suction path at this position can be changed, and the amount of oil fume entering the upper oil fume suction part is reduced. The condensation plate is equivalent to setting a physical barrier between the human ear and the fan of the range hood, which can reduce the direct radiation of the sound field at this position, that is, reduce the working noise at the height of the ear when the user is standing, improve the sound quality of the range hood when working, and then help to enhance the user's experience. In addition, the condensation plate can guide the oil condensed on it into the casing, and can also receive the oil dripping from the upper guide plate, so that the oil finally flows into the oil cup, and prevents the oil from flowing out of the range hood and dripping onto the stove.

[0006] According to some embodiments of the present invention, the distance between the upper guide plate and the condensation plate is 10 mm-30 mm.

[0007] According to some embodiments of the present utility model, the upper oil fume suction part includes a first upper oil fume suction part and a second upper oil fume suction part, and the first upper oil fume suction part and the second upper oil fume suction part are arranged at intervals in a first direction.

[0008] In some embodiments, the dimension between the first upper oil fume suction part and the second upper oil fume suction part in the first direction is 100 mm - 200 mm.

[0009] In some embodiments, the first upper oil fume suction part includes a plurality of first upper oil fume suction ports, and at least a part of the first upper oil fume suction ports are arranged at intervals in the first direction; the second upper oil fume suction part includes a plurality of second upper oil fume suction ports, and at least a part of the second upper oil fume suction ports are arranged at intervals in the first direction.

[0010] In some examples, the first upper oil fume suction port forms a long strip hole extending in a second direction, and the second direction is arranged at an angle with the first direction; and / or, the second upper oil fume suction port forms a long strip hole extending in the second direction, and the second direction is arranged at an angle with the first direction and the up-down direction.

[0011] In some embodiments, the first upper oil fume suction part and the second upper oil fume suction part have the same structure and are symmetrically arranged with respect to a plane perpendicular to the first direction.

[0012] In some alternative embodiments, a sound-absorbing cotton is provided in the gap, and the sound-absorbing cotton is located between the first upper oil fume suction part and the second upper oil fume suction part.

[0013] In some other alternative embodiments, the range hood further includes: a sound-absorbing member, at least a part of the sound-absorbing member protrudes from the upper deflector plate toward the side of the upper oil fume suction cavity, and the sound-absorbing member is located between the first upper oil fume suction part and the second upper oil fume suction part.

[0014] In some specific embodiments, the sound-absorbing member is provided on the side of the upper deflector plate facing away from the condensation plate; or, the sound-absorbing member is provided on the side of the condensation plate facing the upper deflector plate, and the upper deflector plate has an installation through hole, and the sound-absorbing member passes through the installation through hole to partially protrude from the upper deflector plate toward the side of the upper oil fume suction cavity.

[0015] In some examples, a cavity is defined in the sound-absorbing member, and a plurality of sound-absorbing holes are provided on the wall body of the sound-absorbing member, and the plurality of sound-absorbing holes are all communicated with the cavity.

[0016] In some specific examples, a sound-absorbing cotton is provided in the cavity.

[0017] According to some embodiments of the present utility model, the upper deflector plate includes: a first plate body, both the first upper oil fume suction portion and the second upper oil fume suction portion are provided on the first plate body; a second plate body, the second plate body is arranged and connected with the first plate body in a second direction, and the second plate body and the first plate body gradually extend downward in a direction away from each other in the second direction; wherein, the condensation plate is arranged below the first plate body and there is a gap between the condensation plate and the first plate body.

[0018] According to some embodiments of the present utility model, the casing further defines a lower oil fume suction cavity located below the upper oil fume suction cavity, the lower oil fume suction cavity has a side opening and the side opening is a lower oil fume suction port.

[0019] In some embodiments, a lower deflector plate is provided in the casing, and the lower deflector plate extends upward in a direction away from the lower oil fume suction port; and / or, the casing includes a fixed casing and a movable casing, the fixed casing defines the upper oil fume suction cavity and at least part of the lower oil fume suction cavity, the movable casing is arranged at the bottom of the fixed casing so as to be movable up and down between an extended position and a retracted position, the movable casing defines at least part of the lower oil fume suction cavity and the lower oil fume suction port is formed on the side of the movable casing.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a perspective view of a range hood according to an embodiment;

[0023] Figure 2 is a partial structural schematic diagram of a range hood according to some embodiments of the present utility model;

[0024] Figure 3 is a diagram of the oil fume suction path of a range hood when working according to some embodiments of the present utility model;

[0025] Figure 4 is a structural cross-sectional view of a range hood according to some embodiments of the present utility model;

[0026] Figure 5 is a partial structural schematic diagram of a range hood according to some other embodiments of the present utility model;

[0027] Figure 6It is a diagram of the oil suction path when the range hood according to some other embodiments of the present utility model is working;

[0028] Figure 7 It is a structural sectional view of the range hood according to some other embodiments of the present utility model;

[0029] Figure 8 It is a partial structural schematic diagram of the range hood according to some other embodiments of the present utility model;

[0030] Figure 9 It is a diagram of the oil suction path when the range hood according to some other embodiments of the present utility model is working;

[0031] Figure 10 It is a structural sectional view of the range hood according to some other embodiments of the present utility model;

[0032] Figure 11 It is a structural schematic diagram of the volute and the bracket of the range hood according to the embodiments of the present utility model.

[0033] Reference numerals:

[0034] Range hood 100,

[0035] Housing 10, upper oil suction cavity 101, lower oil suction cavity 102, lower oil suction port 103, exhaust port 104,

[0036] Fixed housing 11, movable housing 12,

[0037] Upper deflector 20, first upper oil suction part 201, first upper oil suction port 2011, second upper oil suction part 202, second upper oil suction port 2021, gap 203, smoke collecting cavity 204, mounting through hole 205,

[0038] First plate body 21, second plate body 22,

[0039] Condensation plate 30, sound-absorbing member 31, first guiding surface 311, second guiding surface 312, sound-absorbing holes 313,

[0040] Lower deflector 40,

[0041] Fan 50,

[0042] Volute 51, air inlet 511, air outlet 512,

[0043] Bracket 52, support feet 521, flanging 522, oil draining part 523. Detailed implementation manners

[0044] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0045] Reference is made below Figures 1 - 11 to describe the range hood 100 according to an embodiment of the present utility model.

[0046] As Figures 1 - 4 shown, the range hood 100 according to an embodiment of the present utility model includes a housing 10 and an upper deflector 20. The housing 10 defines an upper oil suction cavity 101, and the upper oil suction cavity 101 has a bottom opening. The upper deflector 20 is connected to the housing 10, and the upper deflector 20 covers the bottom opening. The upper deflector 20 has an upper oil suction portion, and the upper oil suction portion communicates with the upper oil suction cavity 101.

[0047] The range hood 100 further includes a condensation plate 30. The condensation plate 30 is disposed below the upper deflector 20, and the projection of the condensation plate 30 on the upper deflector 20 covers at least a part of the upper oil suction portion. For example, the projection of the condensation plate 30 on the upper deflector 20 covers the entire upper oil suction portion; for another example, the projection of the condensation plate 30 on the upper deflector 20 covers a part of the upper oil suction portion.

[0048] Wherein, there is a gap 203 between the condensation plate 30 and the upper deflector 20, and the gap 203 communicates the upper oil suction portion and the external space of the range hood 100.

[0049] Specifically, when the range hood 100 is operating, a part of the oil fume can enter the gap 203 between the upper deflector 20 and the condensation plate 30 under the drive of the fan 50, and then flow along the surfaces of the upper deflector 20 and the condensation plate 30, enter the upper oil suction cavity 101 from the upper oil suction portion, and finally be discharged from the air outlet 104 of the range hood 100 after being processed.

[0050] Since the oil fume entering the gap 203 between the deflector and the condensation plate 30 enters the upper oil suction cavity 101 from the upper oil suction portion, the oil suction amount of the upper oil suction cavity 101 can be reduced, so the working noise at this position can be reduced, which is beneficial to improving the user experience.

[0051] According to the range hood 100 of the embodiment of the present utility model, by arranging a condensation plate 30 below an upper diversion plate 20 with an upper oil suction part, at least partial shielding of the upper oil suction part can be formed, changing the original air pressure field at this position, thereby changing the oil suction path at this position, reducing the oil intake amount of the upper oil suction part, and the condensation plate 30 is equivalent to arranging a solid barrier between the human ear and the fan 50 of the range hood 100, which can reduce the direct radiation of the sound field at this position, that is, reduce the working noise at the height where the user's ear is located when standing, improve the sound quality when the range hood 100 works, and further is beneficial to improving the user experience.

[0052] In addition, the condensation plate 30 can not only guide the oil liquid condensed thereon into the machine shell 10, but also receive the oil liquid dripping from the upper diversion plate 20, so that the oil liquid finally flows into the oil cup, avoiding the oil liquid flowing outside the range hood 100 and dripping onto the stove top.

[0053] If the distance between the upper diversion plate 20 and the condensation plate 30 is too small, that is, the size of the gap 203 is too small, it is easy to generate whistling and increase the working noise. If the distance between the upper diversion plate 20 and the condensation plate 30 is too large, that is, the gap 203 is too large, the user can directly see the gap 203, which affects the visual experience of the appearance of the range hood 100, and will also cause the problem of increased working noise due to too much oil intake amount of the upper oil suction part.

[0054] Therefore, as Figure 4 shown, according to some embodiments of the present utility model, the distance h between the upper diversion plate 20 and the condensation plate 30 is 10 mm - 30 mm. On the one hand, it can reduce the generation of whistling, on the other hand, it can improve the visual experience of the appearance of the range hood 100, and can also reduce the oil intake amount of the upper oil suction part, thereby reducing the direct radiation of the sound field at this position and further reducing the working noise at the height where the user's ear is located when standing.

[0055] Among them, the distance h between the upper diversion plate 20 and the condensation plate 30 can be 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, 30 mm, etc.

[0056] As Figures 1 - 3 shown, according to some embodiments of the present utility model, the upper oil suction part includes a first upper oil suction part 201 and a second upper oil suction part 202. The first upper oil suction part 201 and the second upper oil suction part 202 are both communicated with the upper oil suction cavity 101, and the first upper oil suction part 201 and the second upper oil suction part 202 are arranged at intervals in a first direction (such as Figure 1 the left - right direction shown), so as to form oil suction on both sides.

[0057] The projection of the condensation plate 30 on the upper diversion plate 20 covers at least part of the first upper oil suction part 201 and the second upper oil suction part 202. For example, the projection of the condensation plate 30 on the upper diversion plate 20 covers the whole of the first upper oil suction part 201 and the second upper oil suction part 202; for another example, the projection of the condensation plate 30 on the upper diversion plate 20 covers a part of the first upper oil suction part 201 and the whole of the second upper oil suction part 202; for yet another example, the projection of the condensation plate 30 on the upper diversion plate 20 covers the whole of the first upper oil suction part 201 and a part of the second upper oil suction part 202; for yet another example, the projection of the condensation plate 30 on the upper diversion plate 20 covers a part of the first upper oil suction part 201 and a part of the second upper oil suction part 202.

[0058] As Figure 2 shown, in some embodiments, the dimension L in the first direction between the first upper oil suction part 201 and the second upper oil suction part 202 is 100 mm - 200 mm. For example, the dimension L in the first direction between the first upper oil suction part 201 and the second upper oil suction part 202 can be 100 mm, 120 mm, 140 mm, 150 mm, 160 mm, 180 mm, 200 mm, etc.

[0059] In the above technical solution, by restricting the dimension L in the first direction between the first upper oil suction part 201 and the second upper oil suction part 202 to satisfy the above range, a closed area can be formed between the first upper oil suction part 201 and the second upper oil suction part 202 to form an occlusion, which is equivalent to reducing the distribution area of the upper oil suction part. Together with the condensation plate 30, the oil intake amount of the first upper oil suction part 201 and the second upper oil suction part 202 can be reduced, thereby reducing the direct radiation of the sound field at this position, that is, reducing the working noise at the height of the user's ears when standing, and further being beneficial to improving the user experience.

[0060] In some embodiments, the first upper oil suction part 201 includes a plurality of first upper oil suction openings 2011, and at least part of the first upper oil suction openings 2011 are arranged at intervals in the first direction. For example, all the first upper oil suction openings 2011 are arranged at intervals in the first direction; for another example, part of the first upper oil suction openings 2011 are arranged at intervals in the first direction, and another part of the first upper oil suction openings 2011 are arranged at intervals in the second direction (such as Figure 1 the front - rear direction shown).

[0061] In some embodiments, the second upper oil suction part 202 includes a plurality of second upper oil suction openings 2021, and the plurality of second upper oil suction openings 2021 are arranged at intervals in the first direction. For example, all the second upper oil suction openings 2021 are arranged at intervals in the first direction; or, for another example, a part of the second upper oil suction openings 2021 are arranged at intervals in the first direction, and another part of the second upper oil suction openings 2021 are arranged at intervals in the first direction (such as the front-back direction shown in Figure 1 ).

[0062] In the above technical solution, by providing a plurality of first upper oil suction openings 2011 and a plurality of second upper oil suction openings 2021, the oil liquid entering the gap 203 from both ends of the condensation plate 30 in the first direction can enter the upper oil suction cavity 101 from the plurality of first upper oil suction openings 2011 and the plurality of second upper oil suction openings 2021 respectively during the flowing process. Moreover, it can also enable the oil liquid entering the gap 203 from at least one end of the condensation plate 30 in the second direction to enter the upper oil suction cavity 101 from the plurality of first upper oil suction openings 2011 and the plurality of second upper oil suction openings 2021 respectively during the flowing process, thereby ensuring the oil suction effect.

[0063] In some embodiments, the first upper oil suction opening 2011 forms a long strip hole extending along the second direction, the second direction is set at an angle with the first direction, and the second direction can be perpendicular to the first direction or can be set at an acute angle.

[0064] Thus, by setting the first upper oil suction opening 2011 as a long strip hole, on the one hand, it can ensure the oil intake volume of the upper oil suction cavity 101, thereby ensuring the oil suction effect. On the other hand, on the basis of a certain distribution area of the first upper oil suction part 201, the number of the first upper oil suction openings 2011 can be appropriately reduced, thereby reducing the risk of oil dripping.

[0065] In other embodiments, the second upper oil suction opening 2021 forms a long strip hole extending along the second direction, the second direction is set at an angle with the first direction and the up-down direction, and the second direction can be perpendicular to the first direction or can be set at an acute angle.

[0066] Thus, by setting the second upper oil suction opening 2021 as a long strip hole, on the one hand, it can ensure the oil intake volume of the upper oil suction cavity 101, thereby ensuring the oil suction effect. On the other hand, on the basis of a certain distribution area of the second upper oil suction part 202, the number of the second upper oil suction openings 2021 can be appropriately reduced, thereby reducing the risk of oil dripping.

[0067] Of course, the first upper oil suction opening 2011 can also be formed into a round hole, a polygonal hole, etc.; the second upper oil suction opening 2021 can also be formed into a round hole, a polygonal hole, etc., and can be specifically selected according to needs.

[0068] Among them, in the embodiments where the first upper oil suction openings 2011 are formed as round holes or polygonal holes, multiple first upper oil suction openings 2011 can be arranged in the first direction and the second direction. In the embodiments where the second upper oil suction openings 2021 are formed as round holes or polygonal holes, multiple second upper oil suction openings 2021 can be arranged in the first direction and the second direction.

[0069] In addition, the shapes of the first upper oil suction openings 2011 and the second upper oil suction openings 2021 can be the same or different, and can be specifically selected according to needs.

[0070] In some embodiments, the structures of the first upper oil suction part 201 and the second upper oil suction part 202 are the same and are symmetrically arranged with respect to a plane perpendicular to the first direction, so as to improve the uniformity of oil suction.

[0071] Specifically, as Figure 2 and Figure 3 shown, the first upper oil suction part 201 includes multiple first upper oil suction openings 2011, the second upper oil suction part 202 includes multiple second upper oil suction openings 2021, the number of the first upper oil suction openings 2011 is equal to the number of the second upper oil suction openings 2021, the arrangement manner of the multiple first upper oil suction openings 2011 is the same as the arrangement manner of the multiple second upper oil suction openings 2021, and the shape of the first upper oil suction openings 2011 is the same as the shape of the second upper oil suction openings 2021.

[0072] In some alternative embodiments, a sound-absorbing cotton (not shown in the figure) is provided in the gap 203, and the sound-absorbing cotton is located between the first upper oil suction part 201 and the second upper oil suction part 202 (in the area A as Figure 4 shown).

[0073] When the oil fume enters the gap 203, the sound-absorbing cotton can absorb the sound waves in the air, reduce the sound wave reflection, and avoid the impact of the oil fume entering the gap 203 from both ends of the condensation plate 30 in the first direction at this position, resulting in an increase in noise. Therefore, by providing the sound-absorbing cotton, the purpose of reducing noise can be achieved.

[0074] As Figures 5 - 7 shown, in some other alternative embodiments, the range hood 100 further includes a sound-absorbing member 31, and at least a part of the sound-absorbing member 31 protrudes from the upper deflector 20 toward the side of the upper oil suction cavity 101. That is to say, at least a part of the sound-absorbing member 31 is located in the upper oil suction cavity 101. The sound-absorbing member 31 is located between the first upper oil suction part 201 and the second upper oil suction part 202.

[0075] When the range hood 100 is operating, at least a part of the oil fume can enter the gap 203 between the upper deflector 20 and the condensation plate 30 under the drive of the fan 50, and then flow along the surfaces of the upper deflector 20 and the condensation plate 30, enter the upper oil fume suction cavity 101 from the first upper oil fume suction part 201 and the second upper oil fume suction part 202. The oil fume entering the upper oil fume suction cavity 101 from the first upper oil fume suction part 201 and the oil fume entering the upper oil fume suction cavity 101 from the second upper oil fume suction part 202 are separated by the sound-absorbing member 31, and respectively flow along the surface of the sound-absorbing member 31 towards the air inlet 511 of the volute 51, and finally are discharged from the air outlet 104 of the range hood 100.

[0076] During the operation of the range hood 100, the sound-absorbing member 31 can reduce the impact of the oil fume entering from the first upper oil fume suction part 201 and the second upper oil fume suction part 202 at this position, and reduce the generation of noise. Since the heights where the first upper oil fume suction part 201 and the second upper oil fume suction part 202 are located are generally the heights of the user's ears when standing, by setting the sound-absorbing member 31, the noise at the height of the user's ears when standing can be reduced.

[0077] In some specific embodiments, the sound-absorbing member 31 is disposed on the side of the upper deflector 20 facing away from the condensation plate 30, that is, the sound-absorbing member 31 can be formed on the side of the upper deflector 20 facing the upper oil fume suction cavity 101.

[0078] In other specific embodiments, the sound-absorbing member 31 is disposed on the side of the condensation plate 30 facing the upper deflector 20. The upper deflector 20 has an installation through hole 205, and the sound-absorbing member 31 passes through the installation through hole 205 to partially protrude from the side of the upper deflector 20 facing the upper oil fume suction cavity 101, so that at least a part of the sound-absorbing member 31 protrudes from the side of the upper deflector 20 facing the upper oil fume suction cavity 101.

[0079] With such a setting, on the one hand, it can reduce the impact of the two parts of the oil fume entering the gap 203 from both ends of the condensation plate 30 in the first direction, and on the other hand, it can reduce the impact of the oil fume entering from the first upper oil fume suction part 201 and the second upper oil fume suction part 202 at this position, thereby reducing the generation of noise, improving the sound quality when the range hood 100 is operating, and further being beneficial to improving the user's experience.

[0080] As Figure 5 and Figure 6 shown, in some embodiments, the sound-absorbing member 31 has a first flow guiding surface 311 and a second flow guiding surface 312, the first flow guiding surface 311 and the second flow guiding surface 312 are arranged in opposite directions in the first direction, and the first flow guiding surface 311 and the second flow guiding surface 312 extend in a direction away from each other from top to bottom. For example, the cross-sectional shape of the sound-absorbing member 31 can be triangular, trapezoidal, etc.

[0081] The first diversion surface 311 can guide the cooking fumes entering the upper cooking fume cavity 101 from the first upper cooking fume part 201 towards the blower 50, and the second diversion surface 312 can guide the cooking fumes entering the upper cooking fume cavity 101 from the second upper cooking fume part 202 towards the blower 50, reducing the impact of these two parts of cooking fumes and further reducing the generation of noise.

[0082] As Figure 5 and Figure 6 shown, in some examples, the dimension M of the lower ends of the first diversion surface 311 and the second diversion surface 312 in the first direction is 100 mm - 200 mm. For example, the dimension M of the lower ends of the first diversion surface 311 and the second diversion surface 312d in the first direction can be 100 mm, 120 mm, 140 mm, 150 mm, 160 mm, 180 mm, 200 mm, etc.

[0083] In the above technical solution, by restricting the dimension M of the lower ends of the first diversion surface 311 and the second diversion surface 312 in the first direction to satisfy the above range, the sound-absorbing member 31 separates the first upper cooking fume part 201 and the second upper cooking fume part 202 by a certain distance, further reducing the working noise at the height of the user's ears when standing, and thus being beneficial to improving the user experience.

[0084] If the angle α between the first diversion surface 311 and the second diversion surface 312 is too large, the two parts of cooking fumes entering the upper cooking fume cavity 101 from the first upper cooking fume part 201 and the second upper cooking fume part 202 are more likely to collide, resulting in an increase in noise; if the angle α between the first diversion surface 311 and the second diversion surface 312 is too small, the angle between the flow direction of the cooking fumes entering the upper cooking fume cavity 101 from the first upper cooking fume part 201 and the first diversion surface 311, and the angle between the flow direction of the cooking fumes entering the upper cooking fume cavity 101 from the second upper cooking fume part 202 and the second diversion surface 312 are too large, resulting in an increase in noise due to the direct impact of the cooking fumes on the sound-absorbing member 31.

[0085] Therefore, as Figure 5 and Figure 6 shown, in some examples, the angle α between the first diversion surface 311 and the second diversion surface 312 is 20° - 60°, which can make the cooking fumes flow more smoothly and reduce the generation of noise. For example, the angle α between the first diversion surface 311 and the second diversion surface 312 can be 20°, 30°, 40°, 45°, 50°, 60°, etc.

[0086] As Figure 5 and Figure 6As shown, in some embodiments, the sound-absorbing member 31 is located in the middle of the upper deflector 20 in the first direction, which can make the oil suction amounts of the first upper oil suction part 201 and the second upper oil suction part 202 on both sides of the sound-absorbing member 31 more uniform.

[0087] As Figure 7 shown, in some embodiments, the sound-absorbing member 31 is formed in a long strip shape extending in the second direction, and the second direction is set at an angle to the first direction. For example, the second direction and the first direction can be perpendicularly arranged or can be arranged at an acute angle. The sound-absorbing member 31 is arranged in a long strip shape extending in the second direction, so that more oil fumes can be guided into the volute 51, improving the oil suction effect.

[0088] As Figure 5 and Figure 6 shown, the range hood 100 further includes a fan 50. The fan 50 is arranged in the upper oil suction cavity 101 and includes a volute 51, an impeller and a motor (not shown in the figure). The impeller is arranged in the volute 51, and the motor is connected to the impeller to drive the impeller to rotate.

[0089] Among them, the sound-absorbing member 31 is located below the volute 51, and the distance H in the vertical direction between the top of the sound-absorbing member 31 and the bottom of the volute 51 is 10 mm - 30 mm. For example, the distance H in the vertical direction between the top of the sound-absorbing member 31 and the bottom of the volute 51 can be 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc.

[0090] In the above technical solution, by limiting the distance H in the vertical direction between the top of the sound-absorbing member 31 and the bottom of the volute 51 to meet the above range, on the one hand, the sound-absorbing member 31 can better guide the oil fumes to the air inlet 511 of the volute 51, and on the other hand, it can prevent the volute 51 from contacting the sound-absorbing member 31, avoiding the volute 51 from hitting the sound-absorbing member 31 due to slight vibration and generating noise, which is beneficial to reducing the working noise and improving the use reliability of the range hood 100.

[0091] As Figures 8 - 10 shown, in some examples, a chamber is defined in the sound-absorbing member 31, and a plurality of sound-absorbing holes 313 are provided on the wall of the sound-absorbing member 31, and the plurality of sound-absorbing holes 313 are all communicated with the chamber.

[0092] Thus, by using the sound-absorbing member 31 to define a chamber and providing the sound-absorbing holes 313, when sound waves enter the chamber from the sound-absorbing holes 313, the sound wave energy can be attenuated or lost in the chamber, thereby achieving the sound absorption effect and realizing the purpose of noise reduction.

[0093] As Figure 8 and Figure 9As shown, in some examples, the sound absorption holes 313 are circular holes, and the diameter d of the circular holes is 3 mm - 5 mm, so that the sound absorption effect can be better achieved. For example, the diameter d of the circular holes can be 3 mm, 4 mm, 5 mm, etc.

[0094] In other embodiments, the sound absorption holes 313 are polygonal holes, and the side length of the polygonal holes is 3 mm - 5 mm, so that the sound absorption effect can be better achieved. For example, the side length of the polygonal holes can be 3 mm, 4 mm, 5 mm, etc.

[0095] As Figure 8 and Figure 9 shown, in some examples, the distance N between two adjacent sound absorption holes 313 is 1 mm - 5 mm, so that the sound absorption effect can be better achieved. For example, the distance N between two adjacent sound absorption holes 313 can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc.

[0096] In some specific examples, sound absorption cotton (not shown in the figure) is provided in the cavity. The sound absorption cotton can absorb the sound waves in the air, reduce the sound wave reflection, and prevent the oil fume entering the upper oil fume suction cavity 101 from the first upper oil fume suction part 201 and the second upper oil fume suction part 202 from impacting at this position, resulting in an increase in noise, and can achieve the purpose of reducing noise.

[0097] As Figure 4 shown, according to some embodiments of the present invention, the upper deflector 20 includes a first plate body 21 and a second plate body 22. The first upper oil fume suction part 201 and the second upper oil fume suction part 202 are both provided on the first plate body 21. The second plate body 22 is arranged and connected with the first plate body 21 in the second direction. The second plate body 22 and the first plate body 21 gradually extend downward in a direction away from each other in the second direction, that is, the first plate body 21 gradually extends downward in a direction away from the second plate body 22, and the second plate body 22 gradually extends downward in a direction away from the first plate body 21, so as to define a smoke collection cavity 204 between the first plate body 21 and the second plate body 22. The condensation plate 30 is arranged below the first plate body 21 and has a gap 203 with the first plate body 21.

[0098] In the above technical solution, by setting the upper deflector 20 to include the first plate body 21 and the second plate body 22, the smoke collection cavity 204 can be defined, so that the oil fume can first gather in the smoke collection cavity 204 and then enter the upper oil fume suction cavity 101 along the gap 203 between the first plate body 21 and the condensation plate 30, which is beneficial to improving the oil fume suction effect.

[0099] In addition, the first plate body 21 is arranged to gradually extend downward in a direction away from the second plate body 22, so that the oil liquid formed on the lower surface of the first plate body 21 can smoothly flow into the casing 10, avoiding the long-term accumulation and coagulation of the oil liquid on the first plate body 21, which may affect the oil fume extraction effect. The second plate body 22 is arranged to gradually extend downward in a direction away from the first plate body 21. When looking at the range hood 100 from the side where the user is located, the second plate body 22 can block the gap 203, so that the gap 203 can be hidden on one side of the second plate body 22, further enhancing the visual experience of the appearance of the range hood 100.

[0100] In some embodiments, in the second direction, the condensation plate 30 gradually extends downward in a direction away from the second plate body 22. During the flow of the oil fume in the gap 203, oil liquid may be formed on the upper surface of the condensation plate 30. By arranging the condensation plate 30 to gradually extend downward in a direction away from the second plate body 22, the condensation plate 30 can guide the oil liquid into the casing 10, avoiding the oil liquid from flowing out of the range hood 100 and dripping onto the stove top.

[0101] Among them, the first plate body 21 and the condensation plate 30 are arranged parallel to each other, so that the width of the gap 203 between the two is consistent, ensuring the oil fume extraction effect.

[0102] In some embodiments, in a horizontal plane perpendicular to the up-and-down direction, the projection of the first plate body 21 covers the projection of the condensation plate 30, so that the oil fume can enter the gap 203 between the condensation plate 30 and the first plate body 21 from all around the condensation plate 30, ensuring the oil fume extraction effect.

[0103] In some embodiments, in a horizontal plane perpendicular to the up-and-down direction, the projection of the second plate body 22 does not overlap with the projection of the condensation plate 30, so that the gap 203 formed between the first plate body 21 and the condensation plate 30 is far away from the second plate body 22, that is, far away from the user's position, thereby further improving the sound quality when the range hood 100 is working, and further enhancing the user's experience.

[0104] As Figure 1 and Figure 4 shown, according to some embodiments of the present invention, the casing 10 further defines a lower oil fume extraction cavity 102. The lower oil fume extraction cavity 102 is located below the upper oil fume extraction cavity 101. The lower oil fume extraction cavity 102 has a side opening, and the side opening is a lower oil fume extraction port 103.

[0105] When the range hood 100 is operating, driven by the fan 50, a part of the cooking fumes can flow into the gap 203 between the condensation plate 30 and the upper deflector 20, and then enter the upper fume suction cavity 101 from the first upper fume suction part 201 and the second upper fume suction part 202. A part of the cooking fumes can enter the lower fume suction cavity 102 from the lower fume suction opening 103. After being processed, the cooking fumes are finally discharged from the exhaust opening 104 of the range hood 100.

[0106] Compared with the related art, by arranging the condensation plate 30 below the upper deflector 20 with the upper fume suction part, at least partial shielding of the upper fume suction part can be formed, thereby reducing the amount of cooking fumes entering the upper fume suction part, that is, reducing the amount of cooking fumes entering the upper fume suction cavity 101, making the negative pressure area of the cooking range closer to the lower fume suction opening 103 located below, thereby increasing the amount of cooking fumes entering the lower fume suction opening 103, that is, increasing the amount of cooking fumes entering the lower fume suction cavity 102, which helps to improve the fume suction effect of the range hood 100.

[0107] Therefore, by arranging the condensation plate 30 below the upper deflector 20 with the upper fume suction part, not only can the working noise at the height of the user's ears when standing be reduced, the sound quality during the operation of the range hood 100 be improved, which is beneficial to enhancing the user experience, but also the interference to the negative pressure area at the lower fume suction opening 103 can be reduced, and the fume suction effect of the range hood 100 can be improved.

[0108] As Figure 4 shown, in some embodiments, a lower deflector 40 is provided in the housing 10, and the lower deflector 40 extends upward and away from the lower fume suction opening 103. By arranging the lower deflector 40, the cooking fumes close to the cooking range can be guided into the lower fume suction cavity 102, thereby further improving the fume suction effect of the range hood 100.

[0109] As Figure 1 and Figure 4 shown, in some embodiments, the housing 10 includes a fixed housing 11 and a movable housing 12. The fixed housing 11 defines the upper fume suction cavity 101 and at least part of the lower fume suction cavity 102. The movable housing 12 is movably provided at the bottom of the fixed housing 11 between the extended position and the retracted position. The movable housing 12 defines at least part of the lower fume suction cavity 102, and the lower fume suction opening 103 is formed on the side of the movable housing 12.

[0110] When the range hood 100 is not working, the movable housing 12 can be driven to move to the retracted position, so that the movable housing 12 can be received in the fixed housing 11, and the lower fume suction opening 103 can be hidden in the fixed housing 11. On the one hand, it is beneficial to improve the visual experience of the appearance of the range hood 100. On the other hand, it can prevent foreign objects from entering the housing 10 from the lower fume suction opening 103, playing a protective role.

[0111] When the range hood 100 is operating, it can drive the movable housing 12 to move to the extended position, so that the movable housing 12 can extend outside the fixed housing 11, thereby exposing the lower oil suction port 103, enabling most of the oil fumes near the cooking range to enter the lower oil suction cavity 102 through the lower oil suction port 103, and further improving the oil suction effect.

[0112] As Figures 2 - 3 , Figure 11 shown, the blower 50 of the range hood 100 includes a volute 51, an impeller, and a motor (not shown in the figure). The impeller is rotatably arranged in the volute 51, the motor is connected to the impeller, and the motor is used to drive the impeller to rotate.

[0113] Among them, the axial direction of the volute 51 extends in the front-rear direction, that is, the axial direction of the impeller extends in the front-rear direction, and the axial direction of the motor shaft of the motor extends in the front-rear direction. When the impeller is working, external air can form an air flow under the drive of the impeller, and enter the volute 51 from the air inlet 511 of the volute 51 along the axial direction of the volute 51, and be discharged from the air outlet 512 in the circumferential direction of the volute 51.

[0114] The blower 50 of the range hood 100 further includes a bracket 52. The bracket 52 is used to install the motor, and the bracket 52 can install the motor to the volute 51. Specifically, the bracket 52 has a plurality of support feet 521. The plurality of support feet 521 are all connected to the side where the air inlet 511 of the volute 51 is located. A flange 522 extending away from the volute 51 is provided on the outer periphery of the support foot 521. The flange 522 can improve the structural strength of the support foot 521, thereby improving the installation reliability and installation stability of the motor, and ensuring the working reliability of the impeller.

[0115] Since a flange 522 is provided on the outer periphery of the support foot 521, a turning area is formed between the support foot 521 and the flange 522. If the turning area is in a low position, oil accumulation is likely to occur at this position and needs to be cleaned regularly. In this embodiment, an oil drainage portion 523 is provided at the position where the flange 522 is at a low place. On the basis of ensuring the structural strength of the support foot 521, the oil remaining in the turning area can be drained away, reducing the oil accumulation problem, thereby reducing the cleaning difficulty and cleaning frequency, and improving the user experience.

[0116] Among them, in some embodiments, the oil drainage portion 523 may include an oil drainage hole. For example, the oil drainage hole can be a round hole, a long strip hole or a special-shaped hole. In other embodiments, the oil drainage portion 523 may include an oil drainage notch.

[0117] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0118] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more. In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal level than the second feature.

[0119] Other components and operations of the range hood 100 according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0120] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0121] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A range hood, characterized in that: include: A casing, wherein the casing defines an upper oil fume suction chamber having a bottom opening; An upper guide plate, the upper guide plate is connected to the housing and covers the bottom opening, and the upper guide plate has an upper oil smoke suction portion connected to the upper oil smoke suction chamber; A condensation plate is arranged below the upper guide plate and its projection on the upper guide plate covers at least a portion of the upper oil fume suction portion. There is a gap between the condensation plate and the upper guide plate, and the gap connects the upper oil fume suction portion and the external space of the range hood.

2. The range hood according to claim 1, characterized in that: The distance between the upper guide plate and the condensation plate is 10 mm-30 mm.

3. The range hood according to claim 1, characterized in that: The upper oil fume suction portion includes a first upper oil fume suction portion and a second upper oil fume suction portion, and the first upper oil fume suction portion and the second upper oil fume suction portion are arranged at intervals in a first direction.

4. The range hood according to claim 3, characterized in that: The dimension between the first upper oil fume suction portion and the second upper oil fume suction portion in the first direction is 100 mm-200 mm.

5. The range hood according to claim 3, characterized in that: The first upper oil fume suction portion includes a plurality of first upper oil fume suction ports, at least some of which are arranged at intervals in the first direction; the second upper oil fume suction portion includes a plurality of second upper oil fume suction ports, at least some of which are arranged at intervals in the first direction.

6. The range hood according to claim 5, characterized in that: The first upper oil smoke inlet is formed into a long strip hole extending along a second direction, and the second direction is arranged at an angle to the first direction; And / or, the second upper oil fume suction port forms an elongated hole extending along a second direction, and the second direction is arranged at an angle to the first direction and the up-down direction.

7. The range hood according to claim 3, characterized in that: The first upper oil fume suction portion and the second upper oil fume suction portion have the same structure and are arranged symmetrically with respect to a plane perpendicular to the first direction.

8. The range hood according to claim 3, characterized in that: Sound-absorbing cotton is arranged in the gap, and the sound-absorbing cotton is located between the first upper oil fume suction part and the second upper oil fume suction part.

9. The range hood according to claim 3, characterized in that: Also includes: A sound absorbing member, at least a portion of which protrudes from a side of the upper guide plate facing the upper oil fume suction chamber, and the sound absorbing member is located between the first upper oil fume suction portion and the second upper oil fume suction portion.

10. The range hood according to claim 9, characterized in that: The sound absorbing member is arranged on a side of the upper guide plate facing away from the condensation plate; Alternatively, the sound absorbing member is arranged on a side of the condensation plate facing the upper guide plate, the upper guide plate has a mounting through hole, and the sound absorbing member is passed through the mounting through hole to partially protrude from a side of the upper guide plate facing the upper oil fume suction chamber.

11. The range hood according to claim 9, characterized in that: A cavity is defined in the sound absorbing member, and a wall of the sound absorbing member is provided with a plurality of sound absorbing holes, and the plurality of sound absorbing holes are all communicated with the cavity.

12. The range hood according to claim 11, characterized in that: Sound-absorbing cotton is arranged in the chamber.

13. The range hood according to claim 1, characterized in that: The upper guide plate comprises: A first plate body, wherein the upper oil fume suction part is arranged on the first plate body; A second plate body, the second plate body is arranged and connected to the first plate body in a second direction, and the second plate body and the first plate body gradually extend downward in a direction away from each other in the second direction; Wherein, the condensation plate is arranged below the first plate body and has the gap between the condensation plate and the first plate body.

14. The range hood according to any one of claims 1 to 13, characterized in that: The housing further defines a lower oil-suction chamber located below the upper oil-suction chamber, wherein the lower oil-suction chamber has a side opening and the side opening is a lower oil-suction port.

15. The range hood according to claim 14, characterized in that: A lower guide plate is provided in the housing, and the lower guide plate extends from bottom to top in a direction away from the lower oil smoke suction port; And / or, the casing includes a fixed shell and a movable shell, the fixed shell defines the upper oil-suction chamber and at least a portion of the lower oil-suction chamber, the movable shell is movably disposed at the bottom of the fixed shell between an extended position and a storage position, the movable shell defines at least a portion of the lower oil-suction chamber and the lower oil-suction port is formed on a side of the movable shell.

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