Self-cleaning range hood

Abstract

The invention relates to a self-cleaning range hood, which comprises: a casing, the front side of which is provided with an air inlet; the smoke baffle is movably arranged on the machine shell and can open and close the air inlet along with the change of the moving position of the smoke baffle; the power output end of the movement mechanism is connected with the smoke barrier and drives the smoke barrier to move; the oil filter screen is driven by the movement mechanism or is in linkage with the smoke barrier to be movably arranged in the machine shell; and the wiping piece is arranged in the machine shell, and in the moving process of the oil filtering net, the wiping piece is always in contact with the oil filtering net so as to clean the surface of the oil filtering net. The range hood has the advantages that the surface of the oil screen can be wiped and cleaned at a time in each startup and shutdown process (the smoke barrier is correspondingly opened and closed) of the range hood, the purpose of being free of disassembly and washing is achieved, the self-cleaning function is achieved, and the use experience of a user is improved.

Description

Technical Field

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

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Traditional range hoods include top suction type and near (side) suction type. Among them, the near suction type range hood uses the principle of vortex wind pressure to absorb and exhaust most of the oil smoke close to the stove in an arc form, reducing the adverse effects on human health.

[0003] In order to improve the oil fume filtering effect and hide the oil net to improve the aesthetics, existing range hoods mostly adopt a filtering device arranged inside the casing or two filtering devices are arranged in the smoke flow path, one is located at the air inlet of the casing, and the other is located inside the casing. For example, the Chinese utility model patent application with application number CN202120159030.2 (authorization announcement number: CN214700882U) discloses a range hood, including a smoke hood, an air duct, a first filter screen and a second filter screen; the smoke hood has a smoke collecting chamber and a first air inlet and a second air inlet connected to the smoke collecting chamber, the second air inlet is located above the first air inlet, and the air duct is connected to the smoke collecting chamber through the second air inlet; the first filter screen is arranged at the first air inlet, and the second filter screen is arranged at the second air inlet; the projection of the mesh of the first filter screen along the vertical direction and the projection of the mesh of the second filter screen along the vertical direction are staggered with each other.

[0004] However, the existing range hoods with built-in filter devices have certain shortcomings. After the oil net is built in, since it is located inside the housing, it may be necessary to disassemble the entire or part of the housing for cleaning, which increases the complexity and difficulty of cleaning. If it is not cleaned for a long time or is not cleaned thoroughly, it is easy to cause oil and dirt to accumulate, affecting the suction power and service life of the range hood.

[0005] Therefore, existing range hoods need further improvement. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a self-cleaning range hood capable of regularly cleaning the oil net in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a self-cleaning range hood, comprising:

[0008] A casing, the front side of which is provided with an air inlet;

[0009] A smoke baffle, movably mounted on the housing, and capable of opening and closing the air inlet as its position changes;

[0010] A motion mechanism, whose power output end is connected to the smoke baffle and drives the smoke baffle to move;

[0011] An oil filter is movably disposed in the housing, driven by the motion mechanism or linked with the smoke baffle;

[0012] The wiping piece is arranged in the housing. When the oil filter net moves, the wiping piece is always in contact with the oil filter net to clean the surface of the oil filter net.

[0013] In order to drive the smoke baffle and the oil filter to move simultaneously and simplify the structure of the motion mechanism, the motion mechanism includes:

[0014] A driving member and a first connecting rod, wherein the first end of the first connecting rod is connected to the power output end of the driving member, so that the first connecting rod deflects forward and backward around an axis extending left and right under the drive of the driving member;

[0015] A slide rail assembly is disposed in the housing and includes a slide bar extending in a front-rear direction and a slider slidably disposed on the slide bar;

[0016] A connecting plate, having a first connecting point, a second connecting point and a third connecting point arranged in a triangle on a vertical plane, wherein the first connecting point, the second connecting point and the third connecting point are arranged in sequence from back to front, and the second connecting point is located above the first connecting point and the third connecting point, the first connecting point is rotatably connected to the first connecting rod, the second connecting point is rotatably connected to a slider of a slide rail assembly located above the connecting plate, and the third connecting point is rotatably connected to the smoke baffle;

[0017] An auxiliary connecting rod has a first end rotatably connected to the housing, and a second end rotatably connected to the smoke baffle.

[0018] In order to ensure the stability of the smoke baffle and the oil filter during movement, the connecting plates are arranged opposite to each other on the left and right sides, and the slide rail assembly also has two groups arranged in sequence on the left and right sides. The oil filter extends in the left and right directions, and its left and right sides are connected to the two connecting plates and can move with the connecting plates.

[0019] In order to avoid interference with other components in the casing as much as possible, the casing includes a left panel and a right panel opposite to each other, the two slide rail assemblies are respectively arranged on the left panel and the right panel, and the two connecting plates are also arranged correspondingly adjacent to the left panel and the right panel.

[0020] In order to ensure the oil fume absorption effect, the movement mechanism also includes a first guide plate, which is extended and arranged in the left and right directions, and its left and right sides are connected to the two connecting plates and can move with the connecting plates. One side of the first guide plate away from the air inlet is connected to the front side of the oil filter net and is arranged at an angle to the oil filter net. When the smoke baffle is in a state of opening the air inlet, the first guide plate moves to the position of the front side of the air inlet and extends toward the inside of the casing. The rear side of the air inlet also has a second guide plate extending toward the inside of the casing and arranged in the left and right directions. The first guide plate and the second guide plate define a guide air duct connected to the air inlet in the casing. The wiping member is arranged at the inner side of the second guide plate and contacts with a side of the oil filter net facing the guide air duct.

[0021] In order to adapt to the structure of the close-suction casing and reasonably utilize the space in the casing, the front side wall of the casing is inclined backward from top to bottom, the first guide plate is inclined forward from top to bottom, and the oil filter is inclined backward from top to bottom.

[0022] In order to ensure the cleaning effect and avoid affecting the air intake volume, when the smoke shield is in the state of opening the air inlet, the wiper contacts the rear part of the oil filter net, and when the smoke shield is in the state of closing the air inlet, the wiper contacts the front part of the oil filter net.

[0023] In order to adapt to the above-mentioned movement mechanism, the back side of the smoke shield has a strip-shaped raised portion protruding backward and extending along the length direction of the main body of the smoke shield, the strip-shaped raised portion has a first inclined surface and a second inclined surface arranged at an angle, the first inclined surface is located on the side adjacent to the front side edge of the smoke shield, the second inclined surface is located on the side adjacent to the rear side edge of the smoke shield, and the left and right sides of the position where the first inclined surface and the second inclined surface on the strip-shaped raised portion are connected to the two connecting plates respectively.

[0024] In order to ensure the smoke collecting and smoke diversion effects when the smoke baffle is in the open state, when the smoke baffle is in the state of opening the air inlet, the smoke baffle is located in front of the air inlet, and the main body of the first inclined surface is in contact with the area on the front side wall of the casing corresponding to the area above the air inlet.

[0025] In order to avoid interference between the strip-shaped raised portion of the smoke shield and the edge of the air inlet during movement, the first inclined surface of the strip-shaped raised portion has a recessed area adjacent to the second inclined surface, which is recessed toward the front of the smoke shield and extends in the left and right directions.

[0026] As an improvement, the auxiliary connecting rods also have two arranged on the left and right sides, the first ends of the two auxiliary connecting rods are rotatably connected to the left and right panels of the casing, and the second ends are rotatably connected to the left and right sides of the strip-shaped raised part of the smoke shield.

[0027] As an improvement, the driving member includes a driving motor, and an output shaft of the driving motor is drivingly connected to the first end of the first connecting rod.

[0028] In order to clean the inner side of the oil filter, a spray pipe is also included in the casing and arranged in the left and right directions. The spray pipe is located on the side of the oil filter away from the air inlet, and has spray holes arranged in sequence along its length.

[0029] Compared with the prior art, the advantages of the present invention are as follows: the posture of the filter oil net in the casing is adjusted by a motion mechanism for driving the movement of the smoke baffle plate. Compared with the traditional fixed oil net structure, the dynamic adaptability to the oil smoke is stronger. On this basis, during the movement of the filter oil net, the wiping member arranged in the casing can clean the surface of the filter oil net. Therefore, during each power on and off process of the range hood (corresponding opening and closing of the smoke baffle plate), the surface of the oil net can be wiped and cleaned once, thereby achieving the purpose of the disassembly-free cleaning function, realizing the self-cleaning function, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the three-dimensional structure of the range hood according to an embodiment of the present invention (the smoke baffle is in the state of opening the air inlet);

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of the range hood according to the embodiment of the present invention from another angle (the smoke baffle is in the state of opening the air inlet);

[0032] Figure 3 A vertical sectional perspective view of the smoke collecting hood portion of the range hood according to an embodiment of the present invention cut along the front-to-back direction (the smoke baffle is in the state of opening the air inlet);

[0033] Figure 4 Schematic diagram of the three-dimensional structure of the range hood according to an embodiment of the present invention (the smoke baffle is in a state of closing the air inlet);

[0034] Figure 5 It is a vertical sectional stereoscopic view of the smoke collecting hood portion of the range hood according to an embodiment of the present invention cut along the front-to-back direction (the smoke baffle is in a state of closing the air inlet). DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings.

[0036] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0037] Figure 1-Figure 5 A preferred embodiment of the self-cleaning range hood of the present invention is shown. The self-cleaning range hood includes a housing 10 and a centrifugal fan arranged in the housing 10. The housing 10 generally includes a fan frame 11 and a fume hood 12 arranged at the bottom of the fan frame 11. The inner cavity of the fan frame 11 is connected with the inner cavity of the fume hood 12. The front side wall of the fume hood 12 is tilted backward from top to bottom, and an air inlet 120 extending in the left and right directions is provided thereon, and external smoke can enter the fume hood 12 through the air inlet 120. The centrifugal fan is arranged in the fan frame 11, and negative pressure is generated when the centrifugal fan is in operation, and external oil smoke can be sucked into the fume hood 12 through the air inlet 120. An oil cup is generally provided at the bottom of the fume hood 12. The oil cup is in the shape of a long strip extending left and right, and is used to receive the oil stains flowing down from the fume hood 12. The front part of the smoke hood 12 is also provided with a smoke baffle 20 which can be deflected forward and backward relative to the smoke hood 12. The smoke baffle 20 is driven by a motion mechanism to deflect relative to the main body of the smoke hood 12. Specifically, it can be deflected forward to open the above-mentioned air inlet 120 and deflected backward to block and close the above-mentioned air inlet 120.

[0038] The motion mechanism for driving the smoke baffle 20 includes a driving member 31, a first connecting rod 32, a slide rail assembly, an auxiliary connecting rod 35 and a connecting plate 34. The slide rail assembly has two groups arranged in sequence on the left and right, and there are two connecting plates 34 and two auxiliary connecting rods 35, one on the left and one on the right.

[0039] The driving member 31 adopts a driving motor, which is arranged at the inner rear side of the smoke hood 12. The output shaft of the driving motor is connected to the first end of the first connecting rod 32 in a transmission manner, and can drive the first connecting rod 32 to deflect forward and backward around the axis extending left and right. The connecting plate 34 can adopt a triangular plate in an overall triangular shape, and its three corner positions also form a first connection point 341, a second connection point 342 and a third connection point 343 arranged in a triangular shape on a vertical plane. Specifically, the above-mentioned first connection point 341, the second connection point 342 and the third connection point 343 are arranged in sequence from back to front, and the second connection point 342 is located above the first connection point 341 and the third connection point 343. The slide rail assembly is located above the connecting plate 34 as a whole, and includes a slide bar 331 extending in the front-to-back direction and a slider 332 slidably arranged on the slide bar 331. There are two groups of slide rail assemblies, and the slide bars 331 of the two groups of slide rail assemblies are respectively arranged on the inner walls of the left and right plates of the smoke hood 12. There are two corresponding connecting plates 34 arranged symmetrically on the left and right, wherein the first connecting point 341 of one connecting plate 34 is rotatably connected to the first connecting rod 32. The second connecting points 342 of the two connecting plates 34 are rotatably connected to the slider 332 of the slide rail assembly located above the connecting plates 34, and the third connecting points 343 are rotatably connected to the left and right sides of the strip-shaped raised portion 21 on the back of the smoke shield 20. There are also two auxiliary connecting rods 35 arranged symmetrically on the left and right. The two auxiliary connecting plates 34 are both located at the front side of the slide rail assembly, and the first ends thereof are rotatably connected to the corresponding side plates of the smoke hood 12, and the second ends thereof are rotatably connected to the strip-shaped raised portion 21 on the back of the smoke baffle 20, wherein the auxiliary connecting rod 35 is located in front of the slide rail assembly, and the position where the strip-shaped raised portion 21 on the back of the smoke baffle 20 is connected to the second end of the auxiliary connecting rod 35 and the position where the strip-shaped raised portion 21 on the back of the smoke baffle 20 is connected to the third connecting point 343 of the connecting plate 34 do not overlap. Specifically, the position where the strip-shaped raised portion 21 on the back of the smoke baffle 20 is connected to the second end of the auxiliary connecting rod 35 is closer to the front side wall of the main body of the smoke baffle 20, such as Figure 2 As shown, when the smoke baffle 20 is in a state of opening the air inlet 120 , the second end of the auxiliary connecting rod 35 also extends out of the smoke collecting hood 12 together with the smoke baffle 20 .

[0040] The back of the smoke shield 20 has a strip-shaped raised portion 21 that protrudes backward and extends along the length direction of the main body of the smoke shield 20. Specifically, the strip-shaped raised portion 21 of the smoke shield 20 can be formed by splicing two plate bodies, and has a first inclined surface 211 and a second inclined surface 212 arranged at an angle, wherein the first inclined surface 211 is located on a side adjacent to the front side of the smoke shield 20, and the second inclined surface 212 is located on a side adjacent to the rear side of the smoke shield 20. The position where the strip-shaped raised portion 21 of the smoke shield 20 is rotatably connected to the third connection point 343 of the two connecting plates 34 is adjacent to the position where the first inclined surface 211 and the second inclined surface 212 are connected. When the smoke baffle 20 is in the state of opening the air inlet 120, the smoke baffle 20 and the strip-shaped raised portion 21 on the back thereof are moved out of the smoke hood 12 and are located in front of the air inlet 120, and the main body of the first inclined surface 211 is fitted with the area on the front side wall of the casing 10 corresponding to the area above the air inlet 120, thereby avoiding or reducing the leakage of smoke from the gap between the two and ensuring the smoke collection in the open state, while the second inclined surface 212 can better guide the smoke into the smoke hood 12, thereby improving the fume absorption effect. On the first inclined surface 211 of the strip-shaped raised portion 21, there is a recessed area 2110 in the area adjacent to the second inclined surface 212, which is recessed toward the front side of the smoke shield 20 and extends in the left-right direction. The cross-section of the recessed area 2110 is arc-shaped. The recessed area 2110 can prevent the strip-shaped raised portion 21 of the smoke shield 20 from interfering with the edge of the air inlet 120 during movement.

[0041] See also Figure 3 , the movement mechanism also includes the oil filter net 13 and the first guide plate 361. The oil filter net 13 and the first guide plate 361 are both extended in the left-right direction, and are both connected to the two connecting plates 34 on the left and right sides, and can move with the connecting plates 34. The first guide plate 361 is located at the front side of the oil filter net 13, wherein the first guide plate 361 is inclined forward from top to bottom, and the oil filter net 13 is inclined backward from top to bottom, and the rear side of the first guide plate 361 (that is, one side of the first guide plate 361 away from the air inlet 120) is connected to the front side of the oil filter net 13. The first guide plate 361 is arranged at an angle with the oil filter net 13. Specifically, the extension direction of the first guide plate 361 is consistent with the extension direction of the front side side of the connecting plate 34 (that is, the side between the third connection point 343 and the second connection point 342). The extension direction of the oil filter 13 is consistent with the extension direction of the upper side edge of the connecting plate 34 (i.e., the side edge between the first connecting point 341 and the second connecting point 342). Driven by the driving mechanism, the oil filter 13 moves forward and backward and deflects around the axis extending left and right.

[0042] See also Figure 3, the rear side of the air inlet 120 also has a second guide plate 362 extending toward the inside of the smoke hood 12 and arranged in the left-right direction. When the smoke shield 20 is in the state of opening the air inlet 120, the first guide plate 361 moves to the position of the front side of the air inlet 120 and extends toward the inside of the smoke hood 12. In this state, the extension direction of the first guide plate 361 is basically consistent with the extension direction of the second guide plate 362, that is, both extend from the air inlet 120 of the smoke hood 12 toward the inside of the smoke hood 12. The first guide plate 361 and the second guide plate 362 define a guide air duct 40 connected to the air inlet 120 in the housing 10, and the oil filter 13 is correspondingly located at the outlet of the guide air duct 40.

[0043] A wiper 37 is provided at the inner side edge (i.e., the side edge away from the air inlet 120) of the second guide plate 362. The wiper 37 also extends in the left-right direction. Specifically, a wiper 37 made of foam plastic material can be used. When the filter oil net 13 moves with the motion mechanism, the wiper 37 always contacts the side of the filter oil net 13 facing the air guide duct 40, so as to clean the surface of the filter oil net 13. When the smoke shield 20 is in the state of opening the air inlet 120, the wiper 37 contacts the rear side of the filter oil net 13 without affecting the air volume. When the smoke shield 20 is in the state of closing the air inlet 120, the wiper 37 contacts the front side of the filter oil net 13. Therefore, in one cycle of opening and closing the air inlet 120 by the smoke shield 20, the wiper 37 can wipe the filter oil net 13 twice, thereby ensuring the cleaning effect.

[0044] This embodiment adjusts the posture of the oil filter 13 in the casing 10 through a motion mechanism for driving the smoke baffle 20 to move. Compared with the traditional fixed oil net structure, it has stronger dynamic adaptability to oil smoke. On this basis, during the movement of the oil filter 13, the wiping member 37 arranged in the casing 10 can clean the surface of the oil filter 13. Therefore, during each power on and off process of the range hood (the smoke baffle 20 is opened and closed correspondingly), the surface of the oil net can be wiped and cleaned once, thereby achieving the purpose of the disassembly-free cleaning function, realizing the self-cleaning function, and improving the user experience.

[0045] In order to rinse and clean the back side of the oil filter 13 (i.e., the side away from the air inlet 120) and the wiper 37, the range hood of this embodiment further includes a spray pipe 14 disposed in the housing 10 and arranged along the left-right direction. The spray pipe 14 is located on the side of the oil filter 13 away from the air inlet 120 and located in front of the wiper 37. The spray pipe 14 has a row of spray holes 140 arranged in sequence along its length direction, and the openings of the spray holes 140 face the wiper 37, i.e., face the rear and lower side, so that most of the sprayed cleaning liquid will also flow to the rear side of the second guide plate 362, and then flow into the oil cup at the bottom of the smoke hood 12, and will not spill out from the air inlet 120.

[0046] The cleaning liquid required by the spray pipe 14 can be provided by a liquid storage tank built into the housing 10, or can be directly provided by an external liquid storage tank, which is not limited here.

Claims

1. A self-cleaning range hood, include: The housing (10) has an air inlet (120) formed on the front side thereof; A smoke baffle (20) is movably mounted on the housing (10) and can open and close the air inlet (120) as its position changes; A motion mechanism, the power output end of which is connected to the smoke baffle (20) and drives the smoke baffle (20) to move; The invention is characterized in that it also includes: An oil filter (13) is movably disposed in the housing (10) and is driven by the motion mechanism or linked to the smoke baffle (20); The wiping member (37) is arranged in the housing (10). During the movement of the oil filter net (13), the wiping member (37) is always in contact with the oil filter net (13) to clean the surface of the oil filter net (13).

2. The self-cleaning range hood according to claim 1, Features The motion mechanism comprises: A driving member (31) and a first connecting rod (32), wherein a first end of the first connecting rod (32) is connected to a power output end of the driving member (31), so that the first connecting rod (32) deflects forward and backward around an axis extending leftward and rightward under the drive of the driving member (31); A slide rail assembly is disposed in the housing (10), comprising a slide bar (331) extending in the front-rear direction and a slide block (332) slidably disposed on the slide bar (331); A connecting plate (34) having a first connecting point (341), a second connecting point (342) and a third connecting point (343) arranged in a triangle on a vertical plane, wherein the first connecting point (341), the second connecting point (342) and the third connecting point (343) are arranged in sequence from back to front, and the second connecting point (342) is located above the first connecting point (341) and the third connecting point (343), the first connecting point (341) is rotatably connected to the first connecting rod (32), the second connecting point (342) is rotatably connected to a slider (332) of a slide rail assembly located above the connecting plate (34), and the third connecting point (343) is rotatably connected to the smoke baffle (20); An auxiliary connecting rod (35) has a first end rotatably connected to the housing (10) and a second end rotatably connected to the smoke baffle (20).

3. The self-cleaning range hood according to claim 2, Features: The connecting plates (34) are arranged in two opposite directions, and the slide rail assembly also has two groups arranged in sequence on the left and right sides. The oil filter (13) extends in the left and right directions, and its left and right sides are connected to the two connecting plates (34) and can move with the connecting plates (34).

4. The self-cleaning range hood according to claim 3, Features: The housing (10) comprises a left side plate and a right side plate which are opposite to each other. The two slide rail assemblies are respectively arranged on the left side plate and the right side plate. The two connecting plates (34) are also arranged correspondingly adjacent to the left side plate and the right side plate.

5. The self-cleaning range hood according to claim 4, Features: The movement mechanism further comprises a first guide plate (361), the first guide plate (361) extending in the left-right direction, the left and right sides of which are connected to the two connecting plates (34) and can move together with the connecting plates (34), a side of the first guide plate (361) away from the air inlet (120) is connected to the front side of the oil filter net (13), and is arranged at an angle to the oil filter net (13), and when the smoke baffle (20) is in a state of opening the air inlet (120), the first guide plate (361) moves to the side of the air inlet (120) The front side edge is located at the position and extends toward the inside of the casing (10); the rear side edge of the air inlet (120) also has a second guide plate (362) extending toward the inside of the casing (10) and arranged in the left-right direction; the first guide plate (361) and the second guide plate (362) define a guide air duct (40) connected to the air inlet (120) in the casing (10); the wiping member (37) is arranged at the inner side edge of the second guide plate (362) and contacts a side of the filter oil net (13) facing the guide air duct (40).

6. The self-cleaning range hood according to claim 5, Features: The front side wall of the casing (10) is inclined from top to bottom and backward, the first guide plate (361) is inclined from top to bottom and forward, and the oil filter net (13) is inclined from top to bottom and backward.

7. The self-cleaning range hood according to claim 5, Features: When the smoke baffle (20) is in a state where the air inlet (120) is opened, the wiper (37) contacts the rear side portion of the oil filter net (13); and when the smoke baffle (20) is in a state where the air inlet (120) is closed, the wiper (37) contacts the front side portion of the oil filter net (13).

8. The self-cleaning range hood according to claim 3, Features: The back side of the smoke shield (20) has a strip-shaped raised portion (21) protruding backwards and extending along the length direction of the main body of the smoke shield (20), and the strip-shaped raised portion (21) has a first inclined surface (211) and a second inclined surface (212) arranged at an angle, the first inclined surface (211) being located on a side adjacent to the front side of the smoke shield (20), and the second inclined surface (212) being located on a side adjacent to the rear side of the smoke shield (20), and the left and right sides of the position where the first inclined surface (211) and the second inclined surface (212) on the strip-shaped raised portion (21) meet are respectively connected to the two connecting plates (34).

9. The self-cleaning range hood according to claim 8, Features: When the smoke baffle (20) is in a state of opening the air inlet (120), the smoke baffle (20) is located in front of the air inlet (120), and the main body of the first inclined surface (211) fits with the area on the front side wall of the casing (10) corresponding to the area above the air inlet (120).

10. The self-cleaning range hood according to claim 9, Features: The first inclined surface (211) of the strip-shaped raised portion (21) has a recessed area (2110) in an area adjacent to the second inclined surface (212), which is recessed toward the front of the smoke baffle (20) and extends in the left-right direction.

11. The self-cleaning range hood according to claim 8, Features: The auxiliary connecting rods (35) are also arranged in two on the left and right sides. The first ends of the two auxiliary connecting rods (35) are respectively rotatably connected to the left and right panels of the casing (10), and the second ends are respectively rotatably connected to the left and right sides of the strip-shaped raised portion (21) of the smoke baffle (20).

12. The self-cleaning range hood according to claim 2, Features: The driving member (31) comprises a driving motor, the output shaft of which is drivingly connected to the first end of the first connecting rod (32).

13. The self-cleaning range hood according to any one of claims 1 to 12, Features: It also includes a spray pipe (14) disposed in the casing (10) and arranged in the left-right direction, the spray pipe (14) being located on a side of the oil filter (13) away from the air inlet (120), and having spray holes (140) arranged in sequence along its length direction.

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