Range hood

Abstract

The extractor hood comprises a machine shell, an upper flow guide plate and a sound absorption piece, an upper oil smoke suction cavity with a bottom opening is defined by the machine shell, the upper flow guide plate is connected with the machine shell and covers the bottom opening, and the upper flow guide plate is provided with an upper oil smoke suction part communicated with the upper oil smoke suction cavity; at least one part of the sound-absorbing piece protrudes out of one side, facing the upper oil smoke absorbing cavity, of the upper guide plate. According to the range hood disclosed by the embodiment of the utility model, the sound absorption piece is arranged, so that the impact of oil fume entering the upper oil fume absorption cavity from the upper oil fume absorption part at the position can be reduced, the noise at the height of ears when a user stands is reduced, and the sound quality of the range hood during working is improved; and the use experience of the user is improved.

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 height of the upper oil smoke intake port is close to the ear height of the user when standing, this will increase the working noise and affect the user's 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-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-suction portion connected to the upper oil-suction chamber; a sound absorbing member, at least a portion of the sound absorbing member protrudes from a side of the upper guide plate facing the upper oil-suction chamber.

[0005] The range hood according to the embodiment of the utility model can reduce the impact of oil smoke entering the upper oil smoke suction chamber from the upper oil smoke suction part at this position by arranging the sound absorbing member, thereby reducing the generation of noise at the height of the user's ears when standing, improving the sound quality of the range hood when working, and further helping to enhance the user's experience.

[0006] According to some embodiments of the utility model, the upper oil fume suction part includes a first upper oil fume suction part and a second upper oil fume suction part, the first upper oil fume suction part and the second upper oil fume suction part are arranged in a first direction, and the sound absorbing part is located between the first upper oil fume suction part and the second upper oil fume suction part.

[0007] In some embodiments, the width direction of the housing extends along the first direction.

[0008] In some embodiments, the sound absorbing member has a first flow guide surface and a second flow guide surface that are arranged opposite to each other in the first direction, and the first flow guide surface and the second flow guide surface extend from top to bottom in a direction away from each other.

[0009] In some examples, the dimensions of the lower ends of the first guide surface and the second guide surface in the first direction are 100 mm-200 mm; and / or, the angle between the first guide surface and the second guide surface is 20°-60°.

[0010] In some embodiments, the sound absorbing member is located in the middle of the upper guide plate in the first direction.

[0011] In some embodiments, the sound absorbing member is formed into a long strip extending along a second direction, and the second direction is arranged at an angle to the first direction.

[0012] According to some embodiments of the utility model, the range hood further includes: a fan, which is arranged in the upper range hood chamber and includes a volute, a wind wheel and a motor, the wind wheel is arranged in the volute, and the motor is connected to the wind wheel to drive the wind wheel to rotate; wherein, the sound absorbing component is located below the volute, and the distance between the top of the sound absorbing component and the bottom of the volute in the up and down direction is 10mm-30mm.

[0013] According to some embodiments of the present invention, 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 connected to the cavity.

[0014] In some embodiments, the sound-absorbing hole is a circular hole and the diameter of the circular hole is 3mm-5mm; or, the sound-absorbing hole is a polygonal hole and the side length of the polygonal hole is 3mm-5mm; and / or, the distance between two adjacent sound-absorbing holes is 1mm-5mm; and / or, sound-absorbing cotton is provided in the chamber.

[0015] According to some embodiments of the utility model, the range hood further includes: a condensation plate, wherein 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 portion, and there is a gap between the condensation plate and the upper guide plate, wherein the gap connects the upper oil fume suction portion and the external space of the range hood.

[0016] In some embodiments, the sound absorbing member is formed 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.

[0017] In some embodiments, the upper guide plate includes: a first plate body, and the upper oil fume suction part is arranged on the first plate body; a second plate body, and 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 the direction away from each other in the second direction; wherein the condensation plate is arranged below the first plate body and gradually extends downward in the direction away from the second plate body in the second direction.

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

[0019] In some embodiments, a lower guide plate is provided in the casing, and the lower guide plate extends from bottom to top in a direction away from the lower oil fume suction port; and / or the casing includes a fixed shell and a movable shell, the fixed shell defines the upper oil fume suction chamber and at least a portion of the lower oil fume 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 fume suction chamber and the lower oil fume suction port is formed on the side of the movable shell.

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

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a three-dimensional diagram of a range hood according to some embodiments of the utility model;

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

[0024] Figure 3 is a structural cross-sectional view of a range hood according to some embodiments of the utility model;

[0025] Figure 4 is a partial structural schematic diagram of a range hood according to other embodiments of the utility model;

[0026] Figure 5 is a structural cross-sectional view of a range hood according to other embodiments of the utility model;

[0027] Figure 6 is a stereoscopic diagram of a range hood according to some other embodiments of the utility model;

[0028] Figure 7 is a partial structural schematic diagram of a range hood according to some other embodiments of the utility model;

[0029] Figure 8 is a diagram of the oil fume extraction path of the range hood according to some other embodiments of the utility model when the range hood is working;

[0030] Fig. 9 is a structural cross-sectional view of a range hood according to some other embodiments of the utility model;

[0031] Fig.10 is a partial structural schematic diagram of a range hood according to some further embodiments of the utility model;

[0032] Fig.11 is a diagram of the oil fume extraction path of the range hood according to some other embodiments of the utility model when it is working;

[0033] Fig.12 is a structural cross-sectional view of a range hood according to some further embodiments of the utility model;

[0034] Fig.13 It is a schematic structural diagram of a volute and a bracket of a range hood according to some embodiments of the utility model.

[0035] Reference numerals:

[0036] Range hood 100,

[0037] The housing 10, the upper oil fume suction chamber 101, the lower oil fume suction chamber 102, the lower oil fume suction port 103, the exhaust port 104,

[0038] Fixed shell 11, movable shell 12,

[0039] The upper guide plate 20, the first upper oil smoke suction part 201, the first upper oil smoke suction port 2011, the second upper oil smoke suction part 202, the second upper oil smoke suction port 2021, the gap 203, the smoke collecting cavity 204, the installation through hole 205,

[0040] The first plate 21, the second plate 22,

[0041] Condensation plate 30, sound absorbing member 31, first guide surface 311, second guide surface 312, sound absorbing hole 313,

[0042] Lower guide plate 40,

[0043] Fan 50,

[0044] Volute 51, air inlet 511, air outlet 512,

[0045] Bracket 52 , supporting foot 521 , flange 522 , oil drain portion 523 . DETAILED DESCRIPTION

[0046] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] Reference below Figure 1-Figure 13 A range hood 100 according to an embodiment of the present invention is described.

[0048] like Figure 1-Figure 3 As shown, the range hood 100 according to the embodiment of the utility model includes a casing 10 and an upper guide plate 20, the casing 10 defines an upper oil fume suction chamber 101, the upper oil fume suction chamber 101 has a bottom opening, the upper guide plate 20 is connected to the casing 10, and the upper guide plate 20 covers the bottom opening, the upper guide plate 20 has an upper oil fume suction part, and the upper oil fume suction part is connected to the upper oil fume suction chamber 101.

[0049] The range hood 100 further includes a sound absorbing member 31, at least a portion of which protrudes from a side of the upper guide plate 20 facing the upper range hood chamber 101. In other words, at least a portion of the sound absorbing member 31 is located in the upper range hood chamber 101.

[0050] When the range hood 100 is working, at least a part of the oil smoke can enter the upper oil smoke suction chamber 101 from the upper oil smoke suction part under the drive of the fan 50. The oil smoke entering the upper oil smoke suction chamber 101 from the upper oil smoke suction part can flow along the surface of the sound absorbing component 31 toward the air inlet 511 of the volute 51, and after being processed, it is finally discharged from the exhaust port 104 of the range hood 100.

[0051] During the operation of the range hood 100, the sound absorbing member 31 can absorb the noise generated by the oil smoke entering the upper oil smoke suction chamber 101 from the upper oil smoke suction part. Since the height of the upper oil smoke suction part is generally the height of the ears of a user when standing, the sound absorbing member 31 can be provided to reduce the noise at the height of the ears of a user when standing.

[0052] According to the range hood 100 of the embodiment of the utility model, by providing the sound absorbing member 31, the impact of the oil smoke entering the upper oil smoke suction chamber 101 from the upper oil smoke suction part at this position can be reduced, thereby reducing the generation of noise at the height of the ears of the user when standing, improving the sound quality of the range hood 100 when working, and further helping to enhance the user experience.

[0053] like Figure 2-Figure 3As shown, according to some embodiments of the present invention, the upper oil fume suction part includes a first upper oil fume suction part 201 and a second upper oil fume suction part 202, and the first upper oil fume suction part 201 and the second upper oil fume suction part 202 are arranged in a first direction (such as Figure 2 The sound absorbing member 31 is arranged in the left-right direction as shown in the figure, and is located between the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202.

[0054] The oil smoke entering the upper oil smoke suction chamber 101 from the first upper oil smoke suction section 201 and the oil smoke entering the upper oil smoke suction chamber 101 from the second upper oil smoke suction section 202 are separated by the sound absorbing member 31, and flow along the surface of the sound absorbing member 31 toward the air inlet 511 of the volute 51, respectively, thereby reducing the impact of the oil smoke entering from the first upper oil smoke suction section 201 and the second upper oil smoke suction section 202 at this position, reducing the generation of noise, improving the sound quality of the range hood 100 during operation, and further enhancing the user experience.

[0055] In some embodiments, the width direction of the housing 10 extends along a first direction, and the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202 are located in the width direction of the housing 10 (eg, Figure 1 and Figure 2 The upper oil fume suction part is arranged in the left and right direction (as shown in the figure), thereby increasing the distribution range of the upper oil fume suction part in the width direction of the casing 10, so that the oil fume suction efficiency of the range hood 100 is greatly improved.

[0056] like Figure 2 As shown, in some embodiments, the sound absorbing member 31 has a first guide surface 311 and a second guide surface 312, the first guide surface 311 and the second guide surface 312 are arranged opposite to each other in the first direction, and the first guide surface 311 and the second guide surface 312 extend away from each other from top to bottom. For example, the cross-sectional shape of the sound absorbing member 31 can be a triangle, a trapezoid, etc.

[0057] The first guide surface 311 can guide the oil smoke entering the upper oil smoke suction chamber 101 from the first upper oil smoke suction part 201 to flow toward the fan 50, and the second guide surface 312 can guide the oil smoke entering the upper oil smoke suction chamber 101 from the second upper oil smoke suction part 202 to flow toward the fan 50, thereby reducing the impact between the two parts of oil smoke and further reducing the generation of noise.

[0058] like Figure 2 As shown, in some examples, the dimension M of the lower ends of the first guide surface 311 and the second guide surface 312 in the first direction is 100 mm-200 mm. For example, the dimension M of the lower ends of the first guide surface 311 and the second guide surface 312d in the first direction may be 100 mm, 120 mm, 140 mm, 150 mm, 160 mm, 180 mm, 200 mm, etc.

[0059] In the above technical solution, by limiting the dimension M of the lower ends of the first guide surface 311 and the second guide surface 312 in the first direction to meet the above range, the sound absorbing component 31 separates the first upper oil fume suction section 201 and the second upper oil fume suction section 202 by a certain distance, thereby further reducing the working noise at the height of the user's ears when standing, which is beneficial to improving the user's experience.

[0060] If the angle α between the first guide surface 311 and the second guide surface 312 is too large, the two parts of oil smoke entering the upper oil smoke suction chamber 101 from the first upper oil smoke suction portion 201 and the second upper oil smoke suction portion 202 will be more likely to collide, thereby increasing noise; if the angle α between the first guide surface 311 and the second guide surface 312 is too small, the angle between the flow direction of the oil smoke entering the upper oil smoke suction chamber 101 from the first upper oil smoke suction portion 201 and the first guide surface 311 will be too large, and the angle between the flow direction of the oil smoke entering the upper oil smoke suction chamber 101 from the second upper oil smoke suction portion 202 and the second guide surface 312 will be too large, thereby increasing noise due to the oil smoke directly impacting the sound absorbing component 31.

[0061] Therefore, if Figure 2 As shown, in some examples, the angle α between the first guide surface 311 and the second guide surface 312 is 20°-60°, which can make the oil smoke flow more smoothly and reduce the generation of noise. For example, the angle α between the first guide surface 311 and the second guide surface 312 can be 20°, 30°, 40°, 45°, 50°, 60°, etc.

[0062] like Figure 2 As shown, in some embodiments, the sound absorbing member 31 is located in the middle of the upper guide plate 20 in the first direction, which can make the oil smoke intake of the first upper oil smoke suction part 201 and the second upper oil smoke suction part 202 located on both sides of the sound absorbing member 31 more uniform.

[0063] like Figure 3 As shown, in some embodiments, the sound absorbing member 31 is formed into a long strip extending along 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 set perpendicularly or at an acute angle. The sound absorbing member 31 is set to be a long strip extending along the second direction, so that more oil smoke can be guided into the volute 51, thereby improving the oil smoke absorption effect.

[0064] like Figure 2 As shown, according to some embodiments of the utility model, the range hood 100 also includes a fan 50, which is arranged in the upper range hood chamber 101 and includes a volute 51, a wind wheel and a motor (not shown in the figure), the wind wheel is arranged in the volute 51, and the motor is connected to the wind wheel to drive the wind wheel to rotate.

[0065] The sound absorbing member 31 is located below the volute 51, and the distance H between the top of the sound absorbing member 31 and the bottom of the volute 51 in the vertical direction is 10 mm to 30 mm. For example, the distance H between the top of the sound absorbing member 31 and the bottom of the volute 51 in the vertical direction can be 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc.

[0066] In the above technical solution, by limiting the distance H between the top of the sound absorbing member 31 and the bottom of the volute 51 in the up and down direction to meet the above range, on the one hand, the sound absorbing member 31 can better guide the oil smoke to the air inlet 511 of the volute 51, and on the other hand, preventing the volute 51 from contacting the sound absorbing member 31 can avoid the volute 51 from hitting the sound absorbing member 31 and generating noise due to slight vibration, which is beneficial to reducing working noise and improving the reliability of the range hood 100.

[0067] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, a cavity is defined in the sound absorbing member 31 , and a wall of the sound absorbing member 31 is provided with a plurality of sound absorbing holes 313 , and the plurality of sound absorbing holes 313 are all connected to the cavity.

[0068] Therefore, by using the sound absorbing member 31 to define a cavity and setting the sound absorbing hole 313, when the sound wave is incident into the cavity from the sound absorbing hole 313, the sound wave energy can be attenuated or lost in the cavity, thereby achieving the effect of sound absorption and realizing the purpose of noise reduction.

[0069] like Figure 4 As shown, in some embodiments, the sound absorbing hole 313 is a circular hole, and the diameter d of the circular hole is 3 mm-5 mm, so as to achieve a better sound absorption effect. For example, the diameter d of the circular hole can be 3 mm, 4 mm, 5 mm, etc.

[0070] In other embodiments, the sound absorbing hole 313 is a polygonal hole, and the side length of the polygonal hole is 3mm-5mm, so as to achieve a better sound absorption effect. For example, the side length of the polygonal hole can be 3mm, 4mm, 5mm, etc.

[0071] like Figure 4 As shown, in some embodiments, the distance N between two adjacent sound absorbing holes 313 is 1 mm-5 mm, so as to achieve a better sound absorption effect. For example, the distance N between two adjacent sound absorbing holes 313 can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc.

[0072] In other embodiments, sound-absorbing cotton (not shown) is arranged in the chamber. The sound-absorbing cotton can absorb sound waves in the air, reduce sound wave reflection, and prevent the oil smoke entering the upper oil smoke suction chamber 101 from the upper oil smoke suction part from impacting at this position, thereby increasing noise, thereby achieving the purpose of reducing noise.

[0073] like Figure 1-Figure 5 As shown, according to some embodiments of the utility model, the first upper oil smoke suction portion 201 includes a plurality of first upper oil smoke suction ports 2011, and at least a portion of the first upper oil smoke suction ports 2011 are arranged at intervals in the first direction. For example, all the first upper oil smoke suction ports 2011 are arranged at intervals in the first direction; for another example, a portion of the first upper oil smoke suction ports 2011 are arranged at intervals in the first direction, and another portion of the first upper oil smoke suction ports 2011 are arranged at intervals in the second direction (such as Figure 1 They are arranged at intervals in the front-to-back direction (as shown).

[0074] In some embodiments, the second upper oil smoke suction portion 202 includes a plurality of second upper oil smoke suction ports 2021, and the plurality of second upper oil smoke suction ports 2021 are arranged at intervals in the first direction. For example, all the second upper oil smoke suction ports 2021 are arranged at intervals in the first direction; for another example, a portion of the second upper oil smoke suction ports 2021 are arranged at intervals in the first direction, and another portion of the second upper oil smoke suction ports 2021 are arranged at intervals in the first direction (e.g. Figure 1 They are arranged at intervals in the front-to-back direction (as shown).

[0075] In the above technical solution, by setting multiple first upper oil fume suction ports 2011 and multiple second upper oil fume suction ports 2021, oil fume can enter the upper oil fume suction chamber 101 from the multiple first upper oil fume suction ports 2011 and multiple second upper oil fume suction ports 2021, thereby ensuring the effect of oil fume suction.

[0076] In some embodiments, the first upper oil smoke suction port 2011 forms a long strip hole extending along the second direction, and the second direction is set at an angle to the first direction. The second direction and the first direction can be set perpendicularly or at an acute angle.

[0077] Therefore, by setting the first upper oil fume suction port 2011 as a long strip hole, on the one hand, the amount of oil fume entering the upper oil fume suction chamber 101 can be guaranteed, thereby ensuring the oil fume suction effect; on the other hand, on the basis of a certain distribution area of ​​the first upper oil fume suction part 201, the number of the first upper oil fume suction ports 2011 can be appropriately reduced, thereby reducing the risk of oil dripping.

[0078] In other embodiments, the second upper oil smoke suction port 2021 forms a long strip hole extending along the second direction, and the second direction is set at an angle to the first direction and the up and down direction. The second direction and the first direction can be set perpendicularly or at an acute angle.

[0079] Therefore, by setting the second upper oil fume suction port 2021 as a long strip hole, on the one hand, the amount of oil fume entering the upper oil fume suction chamber 101 can be guaranteed, thereby ensuring the oil fume suction effect; on the other hand, on the basis of a certain distribution area of ​​the second upper oil fume suction part 202, the number of the second upper oil fume suction ports 2021 can be appropriately reduced, thereby reducing the risk of oil dripping.

[0080] Of course, the first upper oil fume suction port 2011 may also be formed as a circular hole, a polygonal hole, etc.; the second upper oil fume suction port 2021 may also be formed as a circular hole, a polygonal hole, etc., and the specific selection may be made according to needs.

[0081] Among them, in the embodiment where the first upper oil fume intake port 2011 is formed as a circular hole or a polygonal hole, multiple first upper oil fume intake ports 2011 can be arranged in the first direction and the second direction. In the embodiment where the second upper oil fume intake port 2021 is formed as a circular hole or a polygonal hole, multiple second upper oil fume intake ports 2021 can be arranged in the first direction and the second direction.

[0082] In addition, the shapes of the first upper oil fume suction port 2011 and the second upper oil fume suction port 2021 may be the same or different, and the shape may be selected according to the actual needs.

[0083] According to some embodiments of the present invention, the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202 have the same structure and are symmetrically arranged about a plane perpendicular to the first direction, thereby improving the uniformity of oil fume suction.

[0084] Specifically, Figure 2 and Figure 3 As shown, the first upper oil fume suction portion 201 includes a plurality of first upper oil fume suction ports 2011, and the second upper oil fume suction portion 202 includes a plurality of second upper oil fume suction ports 2021. The number of the first upper oil fume suction ports 2011 is equal to the number of the second upper oil fume suction ports 2021, the arrangement of the plurality of first upper oil fume suction ports 2011 is the same as the arrangement of the plurality of second upper oil fume suction ports 2021, and the shape of the first upper oil fume suction ports 2011 is the same as the shape of the second upper oil fume suction ports 2021.

[0085] like Figure 6-Figure 12 As shown, according to some embodiments of the utility model, the range hood 100 also includes a condensation plate 30, which is arranged below the upper guide plate 20, and the projection of the condensation plate 30 on the upper guide plate 20 covers at least a portion of the upper oil fume suction part, and there is a gap 203 between the condensation plate 30 and the upper guide plate 20, and the gap 203 connects the upper oil fume suction part and the external space of the range hood 100.

[0086] When the range hood 100 is working, a part of the oil smoke can enter the gap 203 between the upper guide plate 20 and the condensation plate 30 driven by the fan 50, and then flow along the surface of the upper guide plate 20 and the condensation plate 30, and enter the upper oil smoke suction chamber 101 from the upper oil smoke suction part. The oil smoke entering the upper oil smoke suction chamber 101 can flow along the surface of the sound absorbing component 31 toward the air inlet 511 of the volute 51. In this process, the sound absorbing component 31 can absorb the airflow noise.

[0087] In an embodiment in which the upper oil fume suction section includes a first upper oil fume suction section 201 and a second upper oil fume suction section 202, the oil fume entering the gap 203 between the upper guide plate 20 and the condensation plate 30 can enter the upper oil fume suction chamber 101 from the first upper oil fume suction section 201 and the second upper oil fume suction section 202, respectively. The oil fume entering the upper oil fume suction chamber 101 from the first upper oil fume suction section 201 and the oil fume entering the upper oil fume suction chamber 101 from the second upper oil fume suction section 202 are separated by the sound absorbing member 31, and flow along the surface of the sound absorbing member 31 toward the air inlet 511 of the volute 51, respectively. The sound absorbing member 31 can reduce the impact of the oil fume entering from the first upper oil fume suction section 201 and the second upper oil fume suction section 202 at this position, thereby reducing the generation of noise, improving the sound quality of the range hood 100 when it is working, and thus helping to enhance the user experience.

[0088] Therefore, in the above technical solution, by setting a condensation plate 30 under the upper guide plate 20, the original air pressure field at this position is changed, thereby changing the oil fume suction path at this position and reducing the amount of oil fume entering the oil fume suction part. The condensation plate 30 is equivalent to setting a physical 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 of the user's ear when standing.

[0089] In addition, the condensation plate 30 can guide the oil condensed thereon into the casing 10, and can also receive the oil dripping from the upper guide plate 20 so that the oil eventually flows into the oil cup, thereby preventing the oil from flowing out of the range hood 100 and dripping onto the stove.

[0090] In some embodiments, the sound absorbing member 31 may be formed on a side of the upper guide plate 20 facing the upper oil fume suction chamber 101 , that is, the sound absorbing member 31 may be formed on a side of the upper guide plate 20 facing away from the condensation plate 30 .

[0091] like Figure 7-Figure 9 As shown, in other embodiments, the sound absorbing member 31 is formed on the side of the condensation plate 30 facing the upper guide plate 20, the upper guide plate 20 has a mounting through hole 205, and the sound absorbing member 31 is passed through the mounting through hole 205, that is, a portion of the sound absorbing member 31 extends from the mounting through hole 205 into the upper oil smoke suction chamber 101, so that at least a portion of the sound absorbing member 31 protrudes from the side of the upper guide plate 20 facing the upper oil smoke suction chamber 101.

[0092] Therefore, by setting the sound absorbing member 31 on the condensation plate 30, on the one hand, the impact of the two parts of oil smoke entering the gap 203 from the two ends of the condensation plate 30 in the first direction can be reduced, and on the other hand, the impact of the oil smoke entering from the upper oil smoke suction part at this position can be reduced, thereby reducing the generation of noise, improving the sound quality of the range hood 100 when working, and further helping to enhance the user experience.

[0093] If the distance between the upper guide plate 20 and the condensation plate 30 is too small, that is, the size of the gap 203 is too small, howling is likely to occur, increasing the working noise; if the distance between the upper guide plate 20 and the condensation plate 30 is too large, that is, the gap 203 is too large, the user can intuitively see the gap 203, affecting the visual experience of the appearance of the range hood 100, and also causing the problem of increased working noise due to the excessive amount of oil smoke entering the first upper oil smoke suction part 201 and the second upper oil smoke suction part 202.

[0094] Therefore, if Fig. 9 As shown, according to some embodiments of the utility model, the distance h between the upper guide plate 20 and the condensation plate 30 is 10mm-30mm, which can reduce the generation of howling on the one hand, and improve the visual experience of the appearance of the range hood 100 on the other hand, and can also reduce the amount of oil smoke entering the upper oil smoke suction part, thereby reducing the direct radiation of the sound field at this position, and further reducing the working noise at the height of the user's ears when standing.

[0095] Among them, the distance h between the upper guide plate 20 and the condensation plate 30 can be 10mm, 12mm, 15mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, etc.

[0096] like Figure 7-Figure 9 As shown, in some embodiments, the sound absorbing member 31 is located in the middle of the condensation plate 30 in the first direction, the upper guide plate 20 is provided with a mounting through hole 205, a first upper oil fume suction portion 201 and a second upper oil fume suction portion 202, the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202 are arranged in the first direction, the mounting through hole 205 is located in the middle of the upper guide plate 20 in the first direction and between the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202, the sound absorbing member 31 is passed through the mounting through hole 205, so that the sound absorbing member 31 is located in the middle of the upper guide plate 20 in the first direction.

[0097] In the above technical solution, the sound absorbing member 31 separates the first upper oil fume suction section 201 and the second upper oil fume suction section 202, and is combined with the condensation plate 30, which can reduce the amount of oil fume entering the first upper oil fume suction section 201 and the second upper oil fume suction section 202, 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, which is beneficial to improving the user experience.

[0098] like Figure 10-12 As shown, in other embodiments, the sound absorbing member 31 is located in the middle of the condensation plate 30 in the first direction, the upper guide plate 20 is provided with a mounting through hole 205, a first upper oil fume suction portion 201 and a second upper oil fume suction portion 202, the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202 are arranged in the first direction, and the mounting through hole 205 is located in the middle of the upper guide plate 20 in the first direction and between the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202.

[0099] The sound absorbing member 31 is passed through the installation through hole 205, so that the sound absorbing member 31 is located in the middle of the upper guide plate 20 in the first direction. A cavity 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 connected to the cavity.

[0100] In the above technical solution, a cavity is defined by using the sound absorbing member 31 and sound absorbing holes 313 are provided. When sound waves are incident into the cavity from the sound absorbing holes 313, the sound wave energy may be attenuated or lost in the cavity, thereby achieving a sound absorption effect and realizing the purpose of noise reduction.

[0101] In some other embodiments, the sound absorbing member 31 is located in the middle of the condensation plate 30 in the first direction, the upper guide plate 20 is provided with an installation through hole 205, a first upper oil fume suction portion 201 and a second upper oil fume suction portion 202, the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202 are arranged in the first direction, and the installation through hole 205 is located in the middle of the upper guide plate 20 in the first direction and between the first upper oil fume suction portion 201 and the second upper oil fume suction portion 202.

[0102] The sound absorbing member 31 is passed through the installation through hole 205, so that the sound absorbing member 31 is located in the middle of the upper guide plate 20 in the first direction. A cavity is defined in the sound absorbing member 31, and a wall of the sound absorbing member 31 is provided with a plurality of sound absorbing holes 313, and the plurality of sound absorbing holes 313 are all connected to the cavity, and sound absorbing cotton is arranged in the cavity.

[0103] In the above technical solution, the sound-absorbing cotton can absorb sound waves in the air, reduce sound wave reflection, and avoid the oil smoke entering the upper oil smoke suction chamber 101 from the upper oil smoke suction part from impacting at this position, which causes increased noise, thereby achieving the purpose of reducing noise.

[0104] like Fig. 9As shown, in some embodiments, the upper guide plate 20 includes a first plate body 21 and a second plate body 22, the upper oil fume suction part is arranged on the first plate body 21, the second plate body 22 is arranged and connected to the first plate body 21 in the second direction, the second plate body 22 and the first plate body 21 gradually extend downward in the direction away from each other in the second direction, that is, the first plate body 21 gradually extends downward in the direction away from the second plate body 22, and the second plate body 22 gradually extends downward in the direction away from the first plate body 21, so that a smoke collecting chamber 204 is defined between the first plate body 21 and the second plate body 22, and the condensation plate 30 is arranged below the first plate body 21 and has a gap 203 between it and the first plate body 21.

[0105] In the above technical solution, by setting the upper guide plate 20 to include a first plate body 21 and a second plate body 22, a smoke collecting chamber 204 can be defined, so that the smoke can first be gathered in the smoke collecting chamber 204, and then enter the upper smoke suction chamber 101 along the gap 203 between the first plate body 21 and the condensation plate 30, which is beneficial to improving the smoke suction effect.

[0106] In addition, the first plate body 21 is configured to gradually extend downward in a direction away from the second plate body 22, so that the oil formed on the lower surface of the first plate body 21 can smoothly flow into the casing 10, avoiding the oil from accumulating on the first plate body 21 for a long time and condensing together, thereby affecting the effect of absorbing oil fumes; the second plate body 22 is configured 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 appearance and visual experience of the range hood 100.

[0107] The condensation plate 30 is disposed below the first plate body 21 and gradually extends downward in the second direction away from the second plate body 22. When the oil smoke flows in the gap 203, oil may be formed on the upper surface of the condensation plate 30. By arranging the condensation plate 30 to gradually extend downward in the direction away from the second plate body 22, the condensation plate 30 can guide the oil into the casing 10 to prevent the oil from flowing out of the range hood 100 and dripping onto the stove.

[0108] The first plate body 21 and the condensation plate 30 are arranged parallel to each other, so that the width of the gap 203 therebetween is consistent, thereby ensuring the oil fume absorption effect.

[0109] In some embodiments, in a horizontal plane perpendicular to the up and down directions, the projection of the first plate body 21 covers the projection of the condensation plate 30, so that oil smoke can enter the gap 203 between the condensation plate 30 and the first plate body 21 from all sides of the condensation plate 30, thereby ensuring the oil smoke absorption effect.

[0110] In some embodiments, in a horizontal plane perpendicular to the up and down directions, 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 away from the second plate body 22, that is, away from the user position, thereby further improving the sound quality of the range hood 100 when working, and further enhancing the user experience.

[0111] like Fig. 9 and Fig.12 As shown, according to some embodiments of the present invention, the housing 10 further defines a lower oil fume suction chamber 102 , which is located below the upper oil fume suction chamber 101 , and has a side opening, which is a lower oil fume suction port 103 .

[0112] In the embodiment where the condensation plate 30 is arranged below the upper guide plate 20, when the range hood 100 is working, driven by the fan 50, a portion of the oil smoke can flow into the gap 203 between the condensation plate 30 and the upper guide plate 20, and then flow along the condensation plate 30 and the upper guide plate 20 to enter the upper oil smoke suction chamber 101 from the upper oil smoke suction part. The oil smoke entering the upper oil smoke suction chamber 101 from the upper oil smoke suction part flows toward the air inlet 511 of the volute 51, and a portion of the oil smoke can enter the lower oil smoke suction chamber 102 from the lower oil smoke suction port 103. After being processed, the oil smoke is finally discharged from the exhaust port 104 of the range hood 100.

[0113] Compared with the related art, by arranging a condensation plate 30 under the upper guide plate 20, the upper oil fume suction part can be shielded, thereby reducing the amount of oil fume entering the upper oil fume suction part, that is, reducing the amount of oil fume entering the upper oil fume suction chamber 101, so that the negative pressure area of ​​the stove is closer to the lower oil fume suction port 103 located below, thereby increasing the amount of oil fume entering the lower oil fume suction port 103, that is, increasing the amount of oil fume entering the lower oil fume suction chamber 102, which helps to improve the oil fume suction effect of the range hood 100.

[0114] During this process, the sound absorbing member 31 can make the oil smoke flow more smoothly, reduce the impact of the oil smoke, thereby reducing the generation of noise, improving the sound quality of the range hood 100 when it is working, and thus helping to enhance the user experience.

[0115] Therefore, by arranging a condensation plate 30 under the upper guide plate 20 with the upper oil fume suction part, not only can the working noise at the height of the user's ears when standing be reduced, and the sound quality of the range hood 100 when working be improved, which is beneficial to improving the user's experience, but also the interference with the negative pressure zone at the lower oil fume suction port 103 can be reduced, thereby improving the oil fume suction effect of the range hood 100.

[0116] like Fig. 9 and Fig.12As shown, in some embodiments, a lower guide plate 40 is provided in the housing 10, and the lower guide plate 40 extends from bottom to top in a direction away from the lower oil fume suction port 103. By providing the lower guide plate 40, the oil fume near the stove can be guided into the lower oil fume suction chamber 102, thereby further improving the oil fume suction effect of the range hood 100.

[0117] like Fig. 9 and Fig.12 As shown, in some embodiments, the casing 10 includes a fixed shell 11 and a movable shell 12, the fixed shell 11 defines an upper oil fume suction chamber 101 and at least a portion of a lower oil fume suction chamber 102, the movable shell 12 is movably disposed at the bottom of the fixed shell 11 between an extended position and a storage position, the movable shell 12 defines at least a portion of the lower oil fume suction chamber 102, and a lower oil fume suction port 103 is formed on the side of the movable shell 12.

[0118] When the range hood 100 is not working, the movable shell 12 can be driven to move to the storage position, so that the movable shell 12 can be stored in the fixed shell 11, and the lower oil suction port 103 can be hidden in the fixed shell 11. On the one hand, it is beneficial to improve the appearance and visual experience of the range hood 100, and on the other hand, it can prevent foreign matter from entering the casing 10 through the lower oil suction port 103, thereby playing a protective effect.

[0119] When the range hood 100 is working, the movable shell 12 can be driven to move to the extended position, so that the movable shell 12 can be extended out of the fixed shell 11, thereby exposing the lower oil fume suction port 103, so that most of the oil fume near the stove can enter the lower oil fume suction chamber 102 through the lower oil fume suction port 103, further improving the oil fume suction effect.

[0120] like Figure 3 , Figure 5 , Fig.10 , Figure 12-13 As shown, the axial direction of the volute 51 can extend in the front-to-back direction, that is, the axial direction of the wind wheel extends in the front-to-back direction, and the axial direction of the motor shaft of the motor extends in the front-to-back direction.

[0121] The fan 50 of the range hood 100 further includes a bracket 52, which 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 legs 521, and the plurality of support legs 521 are connected to the volute 51. The outer periphery of the support legs 521 is provided with a flange 522 extending in a direction away from the volute 51. The flange 522 can improve the structural strength of the support legs 521, thereby improving the installation reliability and installation stability of the motor, and ensuring the working reliability of the fan wheel.

[0122] Since the outer periphery of the support foot 521 is provided with a flange 522, a turning area is formed between the support foot 521 and the flange 522. If the turning area is at a low position, oil accumulation is likely to occur at this position, and regular cleaning is required. In this embodiment, an oil drain portion 523 is provided at a position where the flange 522 is at a low position. 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 difficulty and number of cleaning times, and improving the user experience.

[0123] In some embodiments, the oil drain portion 523 may include an oil drain hole. For example, the oil drain hole may be a round hole, an elongated hole, or a special-shaped hole. In other embodiments, the oil drain portion 523 may include an oil drain notch.

[0124] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0125] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0126] Other structures and operations of the range hood 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0127] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0128] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention 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 sound absorbing member, wherein at least a portion of the sound absorbing member protrudes from a side of the upper guide plate facing the upper oil fume suction chamber.

2. 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, the first upper oil fume suction portion and the second upper oil fume suction portion are arranged in a first direction, and the sound absorbing member is located between the first upper oil fume suction portion and the second upper oil fume suction portion.

3. The range hood according to claim 2, characterized in that: The width direction of the housing extends along the first direction.

4. The range hood according to claim 2, characterized in that: The sound absorbing member comprises a first flow guiding surface and a second flow guiding surface which are arranged opposite to each other in the first direction, and the first flow guiding surface and the second flow guiding surface extend from top to bottom in a direction away from each other.

5. The range hood according to claim 4, characterized in that: The size of the lower ends of the first guide surface and the second guide surface in the first direction is 100 mm-200 mm; And / or, the angle between the first guide surface and the second guide surface is 20°-60°.

6. The range hood according to claim 2, characterized in that: The sound absorbing member is located in the middle of the upper guide plate in the first direction.

7. The range hood according to claim 2, characterized in that: The sound absorbing member is in the shape of a long strip extending along a second direction, and the second direction is arranged at an angle to the first direction.

8. The range hood according to claim 1, characterized in that: The range hood further comprises: A fan, the fan is arranged in the upper oil fume suction chamber and comprises a volute, a wind wheel and a motor, the wind wheel is arranged in the volute, and the motor is connected to the wind wheel to drive the wind wheel to rotate; The sound absorbing member is located below the volute, and the distance between the top of the sound absorbing member and the bottom of the volute in the up-down direction is 10 mm-30 mm.

9. The range hood according to claim 1, 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.

10. The range hood according to claim 9, characterized in that: The sound-absorbing hole is a circular hole with a diameter of 3 mm to 5 mm; or, the sound-absorbing hole is a polygonal hole with a side length of 3 mm to 5 mm; And / or, the distance between two adjacent sound-absorbing holes is 1 mm to 5 mm; And / or, sound-absorbing cotton is provided in the chamber.

11. The range hood according to any one of claims 1 to 10, characterized in that: Also includes: 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.

12. The range hood according to claim 11, characterized in that: The sound absorbing member is formed on a side of the condensing 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.

13. The range hood according to claim 11, 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; The condensation plate is arranged below the first plate body and gradually extends downward in the second direction away from the second plate body.

14. The range hood according to any one of claims 1 to 10, 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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