A range hood

Abstract

The present invention provides a range hood, comprising: a smoke hood with a built-in volute and a fan assembly, a smoke inlet on one side and a smoke outlet on the other side; a housing connected to the smoke hood and in communication with the smoke outlet, and respectively provided with a smoke outlet and an exhaust outlet; an air guide device arranged in the housing, comprising a power unit and a smoke filter unit, the smoke filter unit being adapted to move under the action of the power unit, separate smoke, and guide the smoke to the smoke outlet and the exhaust outlet respectively; a first oil collecting member being arranged at least on the housing, and adapted to collect oil in the housing. This arrangement reduces the kitchen temperature while filtering smoke, does not require additional energy consumption, and improves the energy-saving effect of the range hood. In addition, the first oil collecting member is provided to collect and clean oily dirt remaining in the housing, thereby avoiding the accumulation of oily dirt in the housing.

Description

Technical Field

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

[0002] As the main place for people to cook, the quality of the kitchen environment directly affects people's cooking experience. Especially in summer, the high temperature cooking environment in the kitchen greatly affects the user's cooking experience.

[0003] With the improvement of modern living standards, range hoods have gradually entered the kitchens of countless households, improving the user's cooking experience. In the prior art, range hoods are equipped with additional air guide devices such as fans or cooling fans to assist in cooling the kitchen environment. However, such devices consume a lot of energy and are prone to grease accumulation in the air guide devices. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the existing technology of the cooling method of additionally arranging a guide device in the range hood, which has serious energy consumption and oil stains easily accumulated in the guide device, thereby providing a range hood.

[0005] The present invention provides a range hood, comprising: a smoke collecting hood with a built-in volute and a fan assembly, a smoke inlet provided on one side, and a smoke outlet provided on the other side; a shell body, connected to the smoke collecting hood and communicated with the smoke outlet, and respectively provided with a smoke outlet and an exhaust port; an air guide device, arranged in the shell body, comprising a power part and a smoke filter part, the smoke filter part being suitable for performing centrifugal motion under the action of the power part, separating the smoke, and guiding the smoke to the smoke outlet and the exhaust port respectively; a first oil collecting part, at least arranged on the shell body, and suitable for collecting oil in the shell body.

[0006] The smoke filter section includes:

[0007] The first cylinder is connected to the smoke outlet, smoke exhaust port and exhaust port respectively, one end along the axis is connected to the power unit, and the other end is movably connected to the inner wall of the shell, suitable for rotating in the circumferential direction under the action of the power unit and separating the smoke.

[0008] A partition plate is provided on the inner wall of the shell, the smoke outlet and the smoke exhaust port are respectively arranged on both sides of the partition plate, and the partition plate is movably connected to the first cylinder and is circumferentially sealed.

[0009] The first cylinder is provided with a first opening and a second opening along the side wall, and the first opening is arranged opposite to the second opening.

[0010] A partition flange is further provided on one side of the partition plate facing the first cylinder, and the partition flange is protruded along the height direction.

[0011] The partition plate is arranged at an angle, and the first oil collecting member is arranged on a side wall of the shell adjacent to the partition plate and corresponding to a lower side of the partition plate.

[0012] The first oil collection parts include:

[0013] an oil leakage hole, provided on the side wall of the housing, and having a horizontal height greater than or equal to the height of the upper surface of the lower side of the partition plate;

[0014] a switch member, detachably arranged on the oil leakage hole;

[0015] The oil cup is detachably arranged on the side wall of the shell and is correspondingly arranged on the lower side of the oil leakage hole.

[0016] Switch components include:

[0017] The holder comprises a gripping portion and a first engaging portion, wherein the gripping portion is protruded in a direction away from the oil leakage hole;

[0018] A base is movably connected to the card holder, and a second engaging portion is provided on a side facing the card holder and is limitedly connected to the first engaging portion;

[0019] an elastic member, disposed between the first engaging portion and the second engaging portion;

[0020] The first engaging portion has a closed state where it is mutually limited with the inner wall of the oil leakage hole under the action of the elastic member, and an open state where it is away from the inner wall of the oil leakage hole under the interaction of an external force and the elastic member.

[0021] The first engaging portion comprises:

[0022] A top corner, with anti-slip portions provided along both sides of the top corner, wherein the anti-slip portions are frictionally limited with the inner wall of the oil leakage hole in the closed state, and are spaced apart from the inner wall of the oil leakage hole in the open state;

[0023] An outer retaining wall is extended along the top corner toward the base;

[0024] The inner retaining wall is arranged on the side of the outer retaining wall facing the oil leakage hole, and includes a lateral stopper and a bottom stopper extending toward the second clamping part. The lateral stopper and the bottom stopper are respectively limited and set on the second clamping part, and are movably connected to the second clamping part. The lateral stopper is set in abutment with the elastic member.

[0025] The second engaging portion includes: a bottom supporting structure, which is arranged on the lower side of the outer retaining wall, abuts against the outer retaining wall in the open state, and is spaced apart from the outer retaining wall in the closed state; a bottom groove structure, which is arranged along the side of the bottom supporting structure toward the oil leakage hole, with the opening arranged toward the inner retaining wall, and is suitable for accommodating the limiting bottom stopper in the open state and the closed state; a clamping groove, which is arranged on both sides of the bottom groove structure, with the openings arranged opposite to each other, and has the elastic member and lateral stopper built in, and the lateral stopper is suitable for moving along the length direction of the clamping groove under the action of external force and the elasticity.

[0026] A guide column is built into the clamping groove. The guide column is arranged along the length direction of the clamping groove and passes through the lateral block and the elastic member.

[0027] A first positioning portion is further provided on the outer wall of the bottom trough structure, and a second positioning portion is provided on the inner wall of the oil leakage hole. The second positioning portion is arranged in cooperation with the first positioning portion and is suitable for installing and positioning the switch component.

[0028] One end of the first cylinder away from the power unit is communicated with the exhaust port, and the exhaust port is arranged on the axis of the first cylinder.

[0029] The smoke filter unit also includes a smoke guide unit including a plurality of arcuate ribs protruding along the inner side wall of the first cylinder and evenly distributed in a spiral shape, suitable for guiding the separated gas to the exhaust port.

[0030] The range hood also includes: a cold air pipe, which is protruding along the exhaust port in the direction toward the inner side of the first cylinder, extends to the inside of the first cylinder, and is coaxial with the first cylinder. The end of the cold air pipe away from the exhaust port is set as a filter end, on which a filter element is provided, and the filter end is adjacent to the end of the first cylinder connected to the power part.

[0031] The arc-shaped rib body is arranged in a right-handed manner, and along the direction toward the power unit, the first cylinder is rotated clockwise under the action of the power unit; or, the arc-shaped rib body is arranged in a left-handed manner, and along the direction toward the power unit, the first cylinder is rotated counterclockwise under the action of the power unit.

[0032] The smoke outlet is arranged away from the filter end.

[0033] The power department includes:

[0034] a power member, the output shaft of which is coaxially arranged with the axis of the first cylinder and passes through the end of the first cylinder;

[0035] The limiting assembly includes a shaft clamping member and a locking member, which are respectively arranged on both sides of the end of the first cylinder, connected to the output shaft, and suitable for connecting and limiting the output shaft and the first cylinder.

[0036] A matching hole is provided at the end of the first cylinder, and the matching hole is provided on the axis of the first cylinder. The output shaft passes through the matching hole, and the matching hole includes a relatively set limiting groove. The clamping shaft passes through the output shaft and is matched with the limiting groove.

[0037] The range hood also includes: a second stop, which is protrudingly arranged around the power unit, suitable for limiting one end of the first cylinder along the circumferential direction and being movably connected thereto; a first stop, opposite to the second stop, which is arranged on the inner wall of the shell, suitable for limiting the other end of the first cylinder along the circumferential direction and being movably connected thereto.

[0038] The range hood further comprises: an air guide cavity, which is arranged outside the shell and communicates with the exhaust port, and a cold air outlet is arranged along a side away from the exhaust port;

[0039] The air guide plate is arranged on the cold air outlet and is suitable for adjusting the air outlet direction of the cold air outlet.

[0040] The inner diameter of the exhaust port gradually decreases in a direction away from the first cylinder.

[0041] The switch piece is made of transparent material.

[0042] The exhaust port and the first oil collecting member are arranged on the same side.

[0043] The range hood further comprises: a second oil collecting member, which is arranged on the inner side of the fume collecting hood and is suitable for collecting oil.

[0044] The top wall of the smoke collecting hood is provided with a smoke outlet and is inclined, and the smoke outlet is provided on the lower side thereof.

[0045] The technical solution of the present invention has the following advantages:

[0046] 1. The present invention provides a range hood, comprising: a smoke collecting hood with a built-in volute and a fan assembly, a smoke inlet provided on one side, and a smoke outlet provided on the other side; a shell body, connected to the smoke collecting hood and communicated with the smoke outlet, and respectively provided with a smoke outlet and an exhaust port; an air guide device, arranged in the shell body, comprising a power part and a smoke filter part, the smoke filter part being suitable for moving under the action of the power part, separating the smoke, and guiding the smoke to the smoke outlet and the exhaust port respectively; a first oil collecting member, at least arranged on the shell body, and suitable for collecting oil in the shell body.

[0047] By setting up an air guide device including a power part and a smoke filter part, the smoke filter part can perform centrifugal motion under the drive of the power part, and the smoke collected by the smoke hood can be separated from the oil and gas. At the same time, the temperature of the gas separated in the smoke filter part is reduced by the airflow movement, and the smoke containing a large amount of heat and oil is discharged from the smoke exhaust port, and the relatively low-temperature separated gas is discharged from the exhaust port. When the exhaust port is set in a kitchen environment, heat exchange with the hot air in the kitchen environment can be achieved, the kitchen temperature can be reduced, and the user's cooking experience can be improved. This setting can reduce the kitchen temperature while filtering the smoke without additional energy consumption, thereby improving the energy-saving effect of the range hood. In addition, the first oil collecting part is set to collect and clean the oil and dirt retained in the shell, avoiding the accumulation of oil and dirt in the shell, effectively solving the defects of the existing technology that the cooling method of the range hood with an additional guide device has serious energy consumption and oil and dirt are easily accumulated in the guide device.

[0048] 2. In the range hood provided by the present invention, a partition flange is further provided on the side of the partition plate facing the first cylinder, and the partition flange is protruded in the height direction.

[0049] The separation flange is provided so that the separation plate can not only separate the shell, but also carry the oil and dirt, thereby preventing the oil and dirt falling on the separation plate from overflowing onto the outer wall of the first cylinder, making it easier to clean.

[0050] 3. The range hood provided by the present invention, the first locking part includes: a top angle, anti-slip parts are arranged along both sides of the top angle, the anti-slip part is limited by friction with the inner wall of the oil leakage hole in the closed state, and is spaced apart from the inner wall of the oil leakage hole in the open state; an outer retaining wall is extended along the top angle toward the base; an inner retaining wall is arranged on the side of the outer retaining wall facing the oil leakage hole, and includes a lateral stopper and a bottom stopper extending toward the second locking part, the lateral stopper and the bottom stopper are respectively limited on the second locking part, and are movably connected to the second locking part, and the lateral stopper is abutted against the elastic member.

[0051] By setting the anti-slip part, the switch can be effectively limited on the oil leakage hole through friction limiting, ensuring stable blocking of the oil. At the same time, the outer retaining wall is combined with the inner retaining wall to achieve multiple oil blocking, effectively preventing oil leakage. The multiple limiting of the side block and the bottom block can make the first clamping part and the second clamping part stable in limiting, avoiding problems such as tripping during relative movement, and ensuring connection stability. The above settings cooperate with each other to effectively ensure the effect and service life of the switch.

[0052] 4. In the range hood provided by the present invention, the switch component is made of a transparent material.

[0053] This arrangement allows users to observe the oil height at the oil leakage hole through the switch, accurately drain the oil, and avoid frequent switching or oil overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1 A schematic diagram of the three-dimensional structure of a range hood provided in an embodiment of the present invention;

[0056] Figure 2 for Figure 1 The internal structure diagram of the range hood shown;

[0057] Figure 3 for Figure 2 A schematic diagram of the internal structure of the other side of the range hood shown;

[0058] Figure 4 for Figure 2 A schematic diagram of the internal structure of the range hood from another angle is shown;

[0059] Figure 5 for Figure 1 A schematic structural diagram of a switch component of a range hood shown;

[0060] Figure 6 for Figure 5 A schematic structural diagram of the switch component of the range hood shown in FIG. 1 from another angle;

[0061] Figure 7 for Figure 5 A schematic structural diagram of the switch member of the range hood shown in the closed state;

[0062] Figure 8 for Figure 5 A schematic structural diagram of the switch member of the range hood shown in the open state;

[0063] Figure 9 for Figure 1 A schematic diagram of the structure of one side of the housing and the interior of the range hood shown;

[0064] Figure 10 for Figure 9 The enlarged structural diagram of parts A and B on both sides of the housing of the range hood is shown;

[0065] Figure 11 for Figure 1 A schematic cross-sectional view of the housing of the range hood shown without the separating flange;

[0066] Figure 12 for Figure 11 A schematic cross-sectional view of a housing of a range hood is shown;

[0067] Description of reference numerals:

[0068] 1. Smoke hood; 11. Smoke inlet; 12. Smoke outlet; 13. Volute; 14. Fan assembly; 2. Housing; 21. Smoke outlet; 22. Exhaust port; 23. Partition plate; 231. Partition flange; 232 - third stopper; 24. Cold air pipe; 241. Filter element; 25. First stopper; 26. Air guide cavity; 27. Cold air outlet; 28. Air guide plate; 3. Smoke filter unit; 31. First cylinder; 311. First opening; 312. Second opening; 313. Matching hole; 314. Limiting groove; 32. Smoke guide unit; 322. Arc Shaped muscle body; 4. Power part; 41. Power member; 42. Clamping shaft member; 43. Locking member; 44. Second stopper; 5. Oil leakage hole; 51. Second positioning part; 6. Switch member; 61. Holding part; 62. First engaging part; 621. Top angle; 622. Outer retaining wall; 623. Inner retaining wall; 624. Lateral stopper; 625. Bottom stopper; 63. Second engaging part; 631. Bottom supporting structure; 632. Bottom groove structure; 633. Clamping groove; 634. Guide column; 635. First positioning part; 64. Elastic member; 7. Oil cup. DETAILED DESCRIPTION

[0069] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0070] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0072] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0073] like Figure 1 - Figure 12 As shown, this embodiment provides a range hood, comprising: a fume hood 1, a shell 2, an air guide device and a first oil collecting member.

[0074] The smoke hood 1 has a built-in volute 13 and a fan assembly 14, and the fan assembly 14 includes a motor and a turbine. A smoke inlet 11 with a grille is provided on the lower side of the smoke hood 1, and a smoke outlet 12 is provided on the top side; the shell 2 is connected to the smoke hood 1. In this embodiment, the shell 2 is snap-fitted and arranged on the upper side of the smoke hood 1, and is connected to the smoke outlet 12. A smoke exhaust port 21 and an exhaust port 22 are also provided on the shell 2. Specifically, the smoke exhaust port 21 is arranged on the top of the shell 2 and is connected to the external smoke exhaust pipe. The exhaust port 22 is arranged on the side of the shell 2. Preferably, the exhaust port 22 is arranged in the kitchen and is connected to the installation environment of the range hood.

[0075] The air guide device is arranged inside the shell 2, and includes a power unit 4 and a smoke filter unit 3. The smoke filter unit 3 can perform centrifugal motion under the action of the power unit 4, separate the smoke entering the shell 2 from the smoke outlet 12, and guide the oil smoke to the smoke outlet 21 and the separated clean gas with lower temperature to the exhaust port 22.

[0076] The first oil collecting member is provided on the housing 2 in this embodiment, and may also be provided inside the housing 2 , and is suitable for collecting the oil inside the housing 2 .

[0077] By setting up an air guide device including a power part 4 and a smoke filter part 3, the smoke filter part 3 can perform centrifugal motion under the drive of the power part 41, and the smoke collected by the smoke hood 1 is separated into oil and gas. At the same time, the temperature of the gas separated in the smoke filter part 3 is reduced by the airflow movement, and the smoke containing a large amount of heat and oil is discharged from the smoke exhaust port 21, and the relatively low-temperature separated gas is discharged from the exhaust port 22. When the exhaust port 22 is set in a kitchen environment, heat exchange with the hot air in the kitchen environment can be achieved, thereby reducing the kitchen temperature and improving the user's cooking experience. This setting can reduce the kitchen temperature while filtering the smoke without consuming additional energy, thereby improving the energy-saving effect of the range hood. In addition, a first oil collecting part is set to collect and clean the oil and dirt retained in the shell 2, avoiding the accumulation of oil and dirt in the shell 2, effectively solving the defects of the existing technology in which the cooling method of the range hood with an additional guide device is energy-consuming and oil and dirt are easily accumulated in the guide device.

[0078] The smoke filter portion 3 includes a first cylinder 31, which is respectively connected to the smoke outlet 12, the smoke exhaust port 21 and the exhaust port 22. The specific shape of the first cylinder 31 is not limited, as long as it can rotate in the circumferential direction under the action of the power unit 4, and can drive the internal smoke to rotate through friction or its own structure, and separate the gas and oil in the smoke. In this embodiment, the first cylinder 31 is arranged in a cylindrical shape, with one axial end open, and the opening is arranged toward the exhaust port 22, and is movably connected to the inner wall of the shell 2, and can rotate relatively. Preferably, it is arranged in a sliding seal and the other end is closed. The center is connected to the power unit 4 and can rotate along the axis under the drive of the power unit 4.

[0079] As a convertible embodiment, the first cylinder 31 can be connected to the power member 41 in a non-axial manner and rotate eccentrically; as another convertible embodiment, the first cylinder 31 can be arranged in sections, and the shapes and inner diameters of different sections are different.

[0080] In this embodiment, a partition plate 23 is provided on the inner wall of the housing 2. The smoke outlet 12 and the smoke exhaust port 21 are located on the lower and upper sides of the partition plate 23. The partition plate 23 comprises two plates, which are provided on the side walls of the housing 2 and extend toward the first cylindrical body 31 in the middle. Specifically, the ends of the partition plates 23 abut against and slide relative to the outer wall of the first cylindrical body 31, forming a circumferential seal. As an alternative embodiment, the ends of the partition plates 23 can also be provided adjacent to the outer wall of the first cylindrical body 31.

[0081] The first barrel 31 is provided with a first opening 311 and a second opening 312 along its sidewall. Furthermore, the first opening 311 is disposed opposite the second opening 312. In this embodiment, the first opening 311 and the second opening 312 are disposed as rectangular slots. As an alternative embodiment, other openings may be further provided along the sidewall of the first barrel 31.

[0082] The smoke exhaust 21 of the second embodiment is a smoke exhaust 21 and a smoke exhaust 21. The smoke exhaust 21 is a smoke exhaust 21 and a smoke exhaust 21. The smoke exhaust 21 is a smoke exhaust 21 and a smoke exhaust 21. The smoke exhaust 21 is a smoke exhaust 21 and a smoke exhaust 21. The smoke exhaust 21 is a smoke exhaust 21 and a smoke exhaust 21.

[0083] In this embodiment, each partition plate 23 is further provided with a partition flange 231 on the side facing the first cylinder 31. The partition flange 231 is provided in the height direction. The partition flange 231 allows the partition plates 23 to separate the housing 2 while also absorbing oil stains, preventing oil stains that fall on the partition plates 23 from overflowing onto the outer wall of the first cylinder 31, thereby facilitating cleaning.

[0084] In this embodiment, the partition plate 23 is arranged at an angle, and the first oil collector is located on the sidewall of the housing 2 adjacent to the partition plate 23, corresponding to the lower side of the partition plate 23. Specifically, the lower side of the inclined partition plate 23 is the lower side, and the higher side is the higher side. In this embodiment, the lower side and the higher side are respectively located at the ends of the partition plate 23 along its length, with the lower side facing the exhaust port 22. The inclined partition plate 23 facilitates oil diversion.

[0085] The first oil collecting member includes an oil leakage hole 5 , a switch member 6 and an oil cup 7 .

[0086] The number and location of the oil leakage holes 5 can be adaptively adjusted as needed. In this embodiment, two oil leakage holes 5 are provided, each in the shape of a pointed square opening. Both are located on the side wall of the housing 2, specifically on the same side as the air guide cavity 26 and the exhaust port 22. They are located within the range hood's operating environment, specifically in a kitchen or other location, to facilitate user access to the oil leakage holes 5 for collecting oil and replacing the oil cup 7. Furthermore, the oil leakage holes 5 are positioned at a height greater than or equal to the height of the upper surface of the lower side of the partition plate 23. This arrangement facilitates the complete drainage of oil from the partition plate 23. As an alternative embodiment, the oil leakage holes 5 can be positioned at a height lower than the upper surface of the lower side of the partition plate 23.

[0087] The switch member 6 is specifically arranged in the same shape as the oil leakage hole 5 and is detachably arranged on the oil leakage hole 5. In this embodiment, a mounting hole is further provided on the lower side of the oil leakage hole 5 for installing the oil cup 7, so that the oil cup 7 can be detachably inserted on the side wall of the shell 2 and is correspondingly arranged on the lower side of the oil leakage hole 5.

[0088] The switch element 6 includes a holder, a base and an elastic element 64 .

[0089] The base includes a gripping portion 61 and a first engaging portion 62, preferably integrally formed. The gripping portion 61 is in the shape of an elongated plate and protrudes from the first engaging portion 62 in a direction away from the oil leakage hole 5, making it easier for a user to grasp and place the switch 6. The base is movably connected to the base, and a second engaging portion 63 is provided on one side facing the base. The second engaging portion 63 is positionally connected to the first engaging portion 62, with an elastic member 64 disposed therebetween. The elastic member 64 is specifically a spring that acts on the second engaging portion 63 and the first engaging portion 62 to move toward each other, compressing the switch 6 and facilitating user access to the switch 6. This allows the first engaging portion 62 to have a closed state, in which it is positioned away from the second engaging portion 63 and relative to the inner wall of the oil leakage hole 5 under the action of the elastic member 64, and an open state, in which it is positioned closer to the second engaging portion 63 and away from the inner wall of the oil leakage hole 5 under the interaction of an external force and the elastic member 64.

[0090] The first engaging portion 62 includes a top corner 621 , an outer retaining wall 622 and an inner retaining wall 623 .

[0091] The top corner 621 is set in a pointed shape, and anti-slip parts are set along both sides of the top corner 621. The anti-slip parts can be made of a material with a high friction coefficient, such as hard silicone. In the closed state, the anti-slip parts abut against the inner wall of the oil leakage hole 5 and are frictionally limited. In the open state, the first engaging part 62 moves toward the second engaging part 63, and the anti-slip parts are spaced apart from the inner wall of the oil leakage hole 5.

[0092] The outer retaining wall 622 is plate-shaped and extends along the top corner 621 toward the base; the inner retaining wall 623 is also plate-shaped and is arranged on the side of the outer retaining wall 622 facing the oil leakage hole 5, and includes a lateral stopper 624 and a bottom stopper 625 extending toward the second engaging portion 63. The lateral stopper 624 and the bottom stopper 625 are respectively limited and set on the second engaging portion 63, and are movably connected to the second engaging portion 63, wherein the lateral stopper 624 is arranged to abut against the elastic member 64.

[0093] By setting the anti-slip part, the switch part 6 can be effectively limited on the oil leakage hole 5 through friction limiting, ensuring stable blocking of the oil. At the same time, the outer retaining wall 622 is combined with the inner retaining wall to achieve multiple oil blocking, effectively preventing oil leakage. The multiple limiting of the side block combined with the bottom block 625 can make the first clamping part 62 and the second clamping part 63 stable in limiting, avoiding problems such as tripping during relative movement, and ensuring connection stability. The above settings cooperate with each other to effectively ensure the effect and service life of the switch part 6.

[0094] The second engaging portion 63 includes a bottom supporting structure 631 , a bottom groove structure 632 and a clamping groove 633 .

[0095] The bottom supporting structure 631 is arranged on the lower side of the outer retaining wall 622, and abuts against the outer retaining wall 622 in the open state to avoid excessive movement stroke and affect the stability of the structure. In the closed state, it is spaced apart from the outer retaining wall 622; the bottom groove structure 632 is arranged along the bottom supporting structure 631 toward the first locking portion 62, and the opening is arranged toward the inner retaining wall 623, which is suitable for accommodating the limiting bottom stopper 625 in the open state and the closed state; the two clamping grooves 633 are respectively protruded on both sides of the bottom groove structure, and the openings are arranged opposite to each other, and an elastic member 64 and a lateral stopper 624 are built in. The lateral stopper 624 is suitable for moving along the length direction of the clamping groove 633 under the action of external force and elasticity.

[0096] The bottom groove structure 632 can accommodate the limiting bottom stopper 625 in both the open and closed states. At the same time, the clamping groove 633 has built-in elastic parts 64 and lateral stops 624 to prevent them from falling out. The combination of the two further ensures that the first clamping part 62 and the second clamping part 63 are stable in limiting, avoiding problems such as disengagement during relative movement.

[0097] In this embodiment, the clamping groove 633 is provided with a guide post 634. The guide post 634 is arranged along the length of the clamping groove 633 and passes through the lateral block 624 and the elastic member 64. The provision of the guide post 634 achieves positioning and guiding effects, ensuring the stability of the relative movement between the first engaging portion 62 and the second engaging portion 63. As an alternative embodiment, the guide post 634 can also be omitted.

[0098] A first positioning portion 635 is also provided on the outer wall of the bottom groove structure 632, and a second positioning portion 51 is provided on the inner wall of the oil leakage hole 5. The second positioning portion 51 cooperates with the first positioning portion 635 to mount and position the switch member 6. Specifically, in this embodiment, the first positioning portion 635 is a groove located along the two corners of the bottom end of the bottom groove structure 632, while the second positioning portion 51 is a pair of protrusions on the inner wall of the oil leakage hole 5 facing the bottom groove structure 632.

[0099] In this embodiment, one end of the first cylinder 31 away from the power unit 4 is communicated with the exhaust port 22 , and the exhaust port 22 is provided on the axis of the first cylinder 31 .

[0100] With such arrangement, on the one hand, during the rotation process, the first cylinder 31 can drive the internal flue gas to rotate through its own structure or the friction of the inner wall, and the high-temperature oil droplets with larger mass in the flue gas move toward the inner wall of the first cylinder 31, and the low-mass and low-temperature gas is retained around the middle axis of the first cylinder 31. By connecting the exhaust port 22 with the first cylinder 31 and arranging it on the axis of the first cylinder 31, it is convenient for the exhaust port 22 to collect and discharge. On the other hand, the exhaust port 22 is arranged on the side of the first cylinder 31 away from the power unit 4, which can avoid interference between the exhaust port 22 and the power unit 4 and ensure smooth exhaust.

[0101] As a convertible embodiment, the power unit 4 and the exhaust port 22 can be arranged on the same side.

[0102] The smoke filter 3 also includes a smoke guide 32, which includes a plurality of arcuate ribs 322 protruding from the inner sidewall of the first cylindrical body 31 and evenly distributed in a spiral pattern, adapted to guide the separated gas toward the exhaust port 22. As an alternative embodiment, the arcuate ribs 322 may also be unevenly distributed.

[0103] By providing the smoke guide portion 32, the first cylinder 31 is enhanced in guiding the internal smoke, the centrifugal speed of the internal smoke is increased, and the centrifugal separation effect of the smoke is improved. At the same time, the smoke guide portion 32 includes a plurality of arc-shaped ribs 322, which are evenly distributed in a spiral shape, so that the smoke can move along the preset axial direction during the rotation and centrifugal process, so as to facilitate the introduction of the low-temperature air separated by centrifugation into the exhaust port 22. This arrangement effectively improves the gas separation and gas guide efficiency, thereby improving the gas exchange efficiency of the overall structure.

[0104] The range hood also includes a cold air duct 24. While the shape of the duct is not limited, the cold air duct 24 is preferably a straight tube coaxial with the first barrel 31. One end is connected to the exhaust port 22, and the other end protrudes from the exhaust port 22 toward the inside of the first barrel 31, extending into the interior of the first barrel 31. The end of the cold air duct 24, distal from the exhaust port 22, is configured as a filter end, on which is disposed a filter element 241, specifically an oil filter. In this embodiment, the filter end is spaced adjacent to the end of the first barrel 31 connected to the power unit 4.

[0105] By providing a cold air pipe 24 connected to the exhaust port 22 and extending into the first cylinder 31, with its end adjacent to the power unit 4, this arrangement, on the one hand, allows the flue gas and the lower-temperature gas after centrifugal separation in the first cylinder 31 to move in a directional manner, gathering at the end of the first cylinder 31. The end of the cold air pipe 24 is adjacent to the end of the first cylinder 31 connected to the power unit 4, effectively ensuring that the cold gas flows into the cold air pipe 24 and is discharged from the first cylinder 31 through the exhaust port 22. On the other hand, the provision of the cold air pipe 24 increases the flow path of the cold gas, further reducing the temperature of the cold gas and improving the heat exchange efficiency of the entire machine. In addition, the filter 241 provided on the cold air pipe 24 can prevent oil from entering the exhaust port 22, ensuring the cleanliness of the discharged gas.

[0106] As an alternative embodiment, the cold air pipe 24 may not be provided.

[0107] In this embodiment, the arc-shaped rib 322 is set to be right-handed, and along the direction toward the power unit 4, the first cylinder 31 is rotated clockwise under the action of the power unit 4. As a convertible implementation method, the arc-shaped rib 322 is set to be left-handed, and along the direction toward the power unit 4, the first cylinder 31 is rotated counterclockwise under the action of the power unit 4.

[0108] The right-handed rib body cooperates with the clockwise power part 4, or the left-handed rib body cooperates with the counterclockwise power part 4, so that during the rotation of the first cylinder 31, the internal flue gas is diverted toward the power part 4, which facilitates the introduction of the cold gas after centrifugal separation into the cold air pipe 24.

[0109] As a convertible embodiment, the smoke guiding portion 32 may also be a straight rib or a groove.

[0110] In this embodiment, the smoke outlet 12 is arranged on the top side of the smoke collecting hood 1 and is arranged away from the end of the smoke guiding part 32 in the guiding direction. Specifically, the filter end of the cold air pipe 24 is arranged at the end of the smoke guiding part 32 in the guiding direction.

[0111] The oil smoke flowing in from the smoke outlet 12 and entering the first cylinder 31 through the first opening 311 or the second opening 312 flows toward the side of the power unit 4 under the cooperation of the smoke guide unit 32 and the power unit 4. The smoke outlet 12 is arranged away from the filtering end of the cold air pipe 24, that is, away from the cold air gathering position in the first cylinder 31. This can extend the flow path of the oil smoke and cold air, ensure the centrifugal separation effect, avoid the backflow of smoke, and at the same time, avoid the high-temperature oil smoke from being close to the end of the first cylinder 31 where the cold air gathers, affecting the gathering of the cold air.

[0112] As a changeable embodiment, the first opening 311 and the second opening 312 can be arranged away from the end of the smoke guide portion 32 in the flow direction, that is, the filter end.

[0113] In this embodiment, the power unit 4 includes a power part 41 and a limiting assembly. Specifically, the power part 41 is a driving motor, whose output shaft is coaxially arranged with the axis of the first cylinder 31 and passes through the end of the first cylinder 31; the limiting assembly includes a clamping shaft part 42 and a locking part 43, which are arranged on both sides of the end of the first cylinder 31, connected to the output shaft, and suitable for connecting the limiting output shaft and the first cylinder 31.

[0114] Furthermore, a mating hole 313 is provided at the end of the first cylinder 31 facing the power part 41. The mating hole 313 is provided on the axis of the first cylinder 31. The output shaft passes through the mating hole 313. The mating hole 313 includes a relatively arranged U-shaped limiting groove 314. The clamping shaft part 42 passes through the output shaft and is connected with the limiting groove 314. It can limit the output shaft to prevent it from falling out and ensure the stability of the connection.

[0115] The range hood further comprises a first stop 25 and a second stop 44 .

[0116] In this embodiment, the second stop 44 is annular and protrudes on the inner wall of the shell 2 in the circumferential direction of the power unit 4. The outer edge of the first cylinder 31 facing one end of the power unit 4 is arranged on the inner side of the second stop 44, and is nested and limited along the circumferential direction. The two are movably connected and can rotate relative to each other. Furthermore, the second stop 44 is arranged in an annular stepped shape.

[0117] The first stop 25 is opposite to the second stop 44 and is also arranged as an annular convex on the inner wall of the shell 2. It can limit the outer edge of the other end of the first cylinder 31 along the circumferential direction. It is nested and limited along the circumferential direction. The two are movably connected and can rotate relative to each other.

[0118] As a convertible embodiment, the second stop 44 may not be provided, and the first cylinder 31 is supported by the cooperation of the first stop 25 and the limiting assembly.

[0119] In this embodiment, a third stop 232 is further provided on the side of the separation flange 231 facing the housing 2 . The third stop 232 is arranged in a stepped shape and is matched and connected with the second stop 44 .

[0120] The range hood also includes an air guide cavity 26 and air guide plates 28. The air guide cavity 26 is disposed outside the housing 2 and communicates with the exhaust port 22. A cold air outlet 27 is disposed along a side away from the exhaust port 22. Furthermore, the cold air outlet 27 is provided with a plurality of air guide plates 28 to adjust the air outlet direction of the cold air outlet 27.

[0121] In this embodiment, the inner diameter of the exhaust port 22 gradually decreases as it moves away from the first cylinder 31. This arrangement can increase the gas flow rate when the cold air in the first cylinder 31 flows into the air guide cavity 26, thereby improving the user experience.

[0122] In addition, in this embodiment, the motor in the fan assembly 14 and the driving motor of the power unit 4 in the air guide device are independently controlled and are respectively provided with independent switch components 6. As a convertible implementation method, a controller can also be provided, specifically a single-chip microcomputer or PLC, etc., which are electrically connected to the motor in the fan assembly 14 and the driving motor of the power unit 4 in the air guide device, respectively.

[0123] In addition, in this embodiment, the switch member 6 is preferably made of a transparent material. This configuration allows the user to observe the oil level at the oil leakage hole 5 through the switch member 6, accurately drain the oil, and avoid frequent switching or oil overflow.

[0124] The range hood further comprises a second oil collecting member, which is arranged inside the smoke hood 1 and can collect oil. The top wall of the smoke hood 1 is provided with a smoke outlet 12 and is inclined. The smoke outlet 12 is arranged on its lower side to facilitate the collection of oil on the lower side of the first cylinder 31.

[0125] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A range hood, characterized in that: include: A smoke collecting hood (1) is provided with a volute (13) and a fan assembly (14) therein, a smoke inlet (11) being provided on one side and a smoke outlet (12) being provided on the other side; The housing (2) is connected to the smoke collecting hood (1) and communicates with the smoke outlet (12), and is provided with a smoke outlet (21) and an exhaust port (22); An air guide device is arranged in the housing (2), comprising a power unit (4) and a smoke filter unit (3), wherein the smoke filter unit (3) is adapted to perform centrifugal motion under the action of the power unit (4), separate smoke, and guide the smoke to the smoke outlet (21) and the exhaust port (22) respectively; A first oil collecting member, at least provided on the housing (2), and adapted to collect oil in the housing (2); The smoke filter portion (3) comprises: The first cylinder (31) is connected to the smoke outlet (12), the smoke exhaust port (21) and the exhaust port (22) respectively, one end of the cylinder along the axis is connected to the power unit (4), and the other end is movably connected to the inner wall of the shell (2), and is suitable for rotating in the circumferential direction under the action of the power unit (4) and separating the smoke; A partition plate (23) is provided on the inner wall of the shell (2); the smoke outlet (12) and the smoke exhaust port (21) are respectively arranged on both sides of the partition plate (23); the partition plate (23) is movably connected to the first cylinder (31) and is circumferentially sealed.

2. The range hood according to claim 1, characterized in that: The first cylinder (31) is provided with a first opening (311) and a second opening (312) along the side wall, and the first opening (311) and the second opening (312) are arranged opposite to each other.

3. The range hood according to claim 2, characterized in that: A partition flange (231) is further provided on one side of the partition plate (23) facing the first cylinder (31), and the partition flange (231) is protruding in the height direction.

4. The range hood according to claim 2, characterized in that: The partition plate (23) is arranged in an inclined manner, and the first oil collecting member is arranged on the side wall of the shell (2) adjacent to the partition plate (23) and corresponding to the lower side of the partition plate (23).

5. The range hood according to claim 4, characterized in that: The first oil collecting member comprises: An oil leakage hole (5) is provided on the side wall of the housing (2) and has a horizontal height greater than or equal to the height of the upper surface of the lower side of the partition plate (23); A switch member (6) is detachably arranged on the oil leakage hole (5); The oil cup (7) is detachably arranged on the side wall of the housing (2) and is correspondingly arranged on the lower side of the oil leakage hole (5).

6. The range hood according to claim 5, characterized in that: The switch element (6) comprises: The holder comprises a gripping portion (61) and a first engaging portion (62), wherein the gripping portion (61) is protruding in a direction away from the oil leakage hole (5); A base is movably connected to the card seat, and a second engaging portion (63) is provided on a side facing the card seat and is position-limitingly connected to the first engaging portion (62); an elastic member (64) disposed between the first engaging portion (62) and the second engaging portion (63); The first engaging portion (62) has a closed state in which it is mutually limited with the inner wall of the oil leakage hole (5) under the action of the elastic member (64), and an open state in which it is away from the inner wall of the oil leakage hole (5) under the interaction of an external force and the elastic member (64).

7. The range hood according to claim 6, characterized in that: The first engaging portion (62) comprises: A top corner (621), with anti-slip portions provided along both sides of the top corner (621), wherein the anti-slip portions are frictionally limited with the inner wall of the oil leakage hole (5) in the closed state, and are spaced apart from the inner wall of the oil leakage hole (5) in the open state; An outer retaining wall (622) is extended along the top corner (621) toward the base; The inner retaining wall (623) is arranged on the side of the outer retaining wall (622) facing the oil leakage hole (5), and includes a lateral stopper (624) and a bottom stopper (625) extending toward the second engaging portion (63). The lateral stopper (624) and the bottom stopper (625) are respectively limitedly arranged on the second engaging portion (63) and movably connected to the second engaging portion (63). The lateral stopper (624) is arranged to abut against the elastic member (64).

8. The range hood according to claim 7, characterized in that: The second engaging portion (63) comprises: A bottom supporting structure (631) is arranged on the lower side of the outer retaining wall (622), abutting against the outer retaining wall (622) in the open state, and spaced apart from the outer retaining wall (622) in the closed state; A bottom groove structure (632) is provided along a side of the bottom supporting structure (631) facing the oil leakage hole (5), with its opening facing the inner retaining wall (623), and is suitable for accommodating and limiting the bottom stopper (625) in the open state and the closed state; The clamping groove (633) is arranged on both sides of the bottom groove structure (632), with the openings arranged opposite to each other, and is equipped with the elastic member (64) and the lateral stopper (624). The lateral stopper (624) is suitable for moving along the length direction of the clamping groove (633) under the action of external force and elasticity.

9. The range hood according to claim 8, characterized in that: The clamping groove (633) is internally provided with a guide column (634), and the guide column (634) is arranged along the length direction of the clamping groove (633) and passes through the lateral stopper (624) and the elastic member (64).

10. The range hood according to claim 8, characterized in that: A first positioning portion (635) is further provided on the outer wall of the bottom groove structure (632), and a second positioning portion (51) is provided on the inner wall of the oil leakage hole (5). The second positioning portion (51) is arranged in cooperation with the first positioning portion (635) and is suitable for installing and positioning the switch component (6).

11. The range hood according to claim 1, characterized in that: One end of the first cylinder (31) away from the power unit (4) is communicated with the exhaust port (22), and the exhaust port (22) is arranged on the axis of the first cylinder (31).

12. The range hood according to any one of claims 1 to 11, characterized in that: The smoke filter unit (3) further comprises: The smoke guide portion (32) includes a plurality of arc-shaped ribs (322) protruding along the inner wall of the first cylinder (31) and evenly distributed in a spiral shape, suitable for guiding the separated gas to the exhaust port (22).

13. The range hood according to claim 12, characterized in that: Also includes: The cold air pipe (24) is protrudingly arranged along the direction from the exhaust port (22) toward the inner side of the first cylinder (31), extending to the interior of the first cylinder (31), and being coaxial with the first cylinder (31). The end of the cold air pipe (24) away from the exhaust port (22) is arranged as a filter end, on which a filter element (241) is arranged. The filter end is arranged adjacent to an end of the first cylinder (31) connected to the power unit (4).

14. The range hood according to claim 13, characterized in that: The arc-shaped rib (322) is arranged in a right-handed manner and is arranged in a direction toward the power unit (4). The first cylinder (31) is arranged to rotate clockwise under the action of the power unit (4); or, The arc-shaped rib (322) is arranged in a left-handed manner and is arranged in a direction toward the power unit (4). The first cylinder (31) is arranged to rotate counterclockwise under the action of the power unit (4).

15. The range hood according to claim 13, characterized in that: The smoke outlet (12) is arranged away from the filter end.

16. The range hood according to any one of claims 1-11 and 13-15, characterized in that: The power unit (4) includes: A power member (41), the output shaft of which is coaxially arranged with the axis of the first cylinder (31) and passes through the end of the first cylinder (31); The limiting assembly includes a clamping shaft member (42) and a locking member (43), which are respectively arranged on both sides of the end of the first cylinder (31), connected to the output shaft, and suitable for connecting and limiting the output shaft and the first cylinder (31).

17. The range hood according to claim 16, characterized in that: A matching hole (313) is provided at the end of the first cylinder (31), and the matching hole (313) is arranged on the axis of the first cylinder (31). The output shaft passes through the matching hole (313), and the matching hole (313) includes a relatively arranged limiting groove (314). The clamping shaft (42) passes through the output shaft and is matched with the limiting groove (314).

18. The range hood according to any one of claims 1-11, 13-15, and 17, characterized in that: Also includes: A second stop (44) is protrudingly provided on the circumference of the power unit (4), adapted to limit one end of the first cylinder (31) along the circumferential direction and movably connected thereto; The first stop (25), opposite to the second stop (44), is arranged on the inner wall of the shell (2), suitable for limiting the other end of the first cylinder (31) along the circumferential direction and being movably connected thereto.

19. The range hood according to any one of claims 1-11, 13-15, and 17, characterized in that: Also includes: An air guide cavity (26) is arranged outside the housing (2) and communicates with the exhaust port (22), and a cold air port (27) is provided along a side away from the exhaust port (22); An air guide plate (28) is provided on the cold air outlet (27) and is suitable for adjusting the air outlet direction of the cold air outlet (27).

20. The range hood according to claim 19, characterized in that: The inner diameter of the exhaust port (22) gradually decreases in a direction away from the first cylinder (31).

21. The range hood according to any one of claims 5 to 10, characterized in that: The switch element (6) is made of a transparent material.

22. The range hood according to any one of claims 1-11, 13-15, 17, and 20, characterized in that: The exhaust port (22) and the first oil collecting member are arranged on the same side.

23. The range hood according to any one of claims 1-11, 13-15, 17, and 20, characterized in that: Also includes: The second oil collecting member is arranged on the inner side of the smoke collecting hood (1) and is suitable for collecting oil.

24. The range hood according to claim 23, characterized in that: The top wall of the smoke collecting hood (1) on which the smoke outlet (12) is arranged is inclined, and the smoke outlet (12) is arranged on the lower side thereof.

Images