Self-cleaning extractor hood

Abstract

The present application relates to a kind of self-cleaning range hood, comprising: the front side of the casing is provided with air inlet;Smoke baffle, it is movably arranged on the casing, and it can open and close the air inlet with the change of its moving position;Movement mechanism, the power output end of movement mechanism is connected with the smoke baffle, and drives the smoke baffle to move;Filtering oil screen, it is movably arranged in the casing by the movement mechanism or with the linkage of the smoke baffle;Wiping member, it is arranged in the casing, and the wiping member is always in contact with the filtering oil screen to clean the surface of filtering oil screen during the movement of filtering oil screen.The advantage is that: in the process of each on-off of range hood (corresponding to open and close by smoke baffle), it can realize wiping and cleaning of oil screen surface once, achieves the purpose of free cleaning, realizes self-cleaning function, and improves the user's experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of range hood, in particular to a self-cleaning range hood. BACKGROUND

[0002] The range hood is a kind of kitchen appliance for purifying kitchen environment. The traditional range hood includes top suction type and near (side) suction type, wherein the near suction type range hood utilizes the vortex wind pressure principle to suck and exhaust most of the oil fume close to the cooking bench in an arc form, thereby reducing the adverse effects on human health.

[0003] In order to improve the oil fume filtering effect and hide the oil screen to improve the aesthetic appearance, the existing range hood mostly sets a filtering device inside the casing or sets two filtering devices 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 No. CN202120159030.2 (authorized publication No. CN214700882U) discloses a range hood, which includes a smoke collecting hood, an air duct, a first filter screen and a second filter screen. The smoke collecting hood has a smoke collecting cavity and a first air inlet and a second air inlet communicating with the smoke collecting cavity, the second air inlet is located above the first air inlet, and the air duct communicates with the smoke collecting cavity 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 hole of the first filter screen along the vertical direction and the projection of the mesh hole of the second filter screen along the vertical direction are mutually staggered.

[0004] However, the existing range hood with the filtering device built-in the casing still has some deficiencies. After the oil screen is built-in, it is located inside the casing, so the entire or partial casing may need to be disassembled for cleaning, which increases the complexity and difficulty of cleaning. If the cleaning is not performed for a long time or is not performed thoroughly, the oil stains are likely to accumulate, thereby affecting the suction force and service life of the range hood.

[0005] Therefore, the existing range hood still needs to be further improved. SUMMARY

[0006] The present application solves the technical problem of the prior art, and provides a self-cleaning range hood capable of regularly cleaning the oil screen.

[0007] The technical scheme adopted by the present application to solve the above technical problem is as follows: a self-cleaning range hood, comprising:

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

[0009] a smoke baffle, which is movably arranged on the casing and can open and close the air inlet by changing the moving position of the casing;

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

[0011] A filter oil net, which is driven by the moving mechanism or moves in connection with the smoke baffle in the casing;

[0012] A wiping member, which is arranged in the casing and always contacts with the filter oil net to clean the surface of the filter oil net during the movement of the filter oil net.

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

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

[0015] A slide rail assembly, which is arranged in the casing and comprises a slide rail extending in the front-back direction and a slide block slidingly arranged on the slide rail;

[0016] A connecting plate, which has a first connecting point, a second connecting point and a third connecting point arranged in a triangular shape in the vertical plane, 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 above the first connecting point and the third connecting point, the first connecting point is rotationally connected with the first connecting rod, the second connecting point is rotationally connected with the slide block of the slide rail assembly above the connecting plate, and the third connecting point is rotationally connected with the smoke baffle;

[0017] An auxiliary connecting rod, whose first end is rotationally connected with the casing and whose second end is rotationally connected with the smoke baffle.

[0018] In order to ensure the stability of the movement of the smoke baffle and the filter oil net, the connecting plate has two plates arranged oppositely in the left-right direction, the slide rail assembly also has two assemblies arranged in sequence in the left-right direction, and the filter oil net extends in the left-right direction, and its left and right sides are connected with the two connecting plates to move together with the connecting plates.

[0019] In order to avoid interference with other components in the casing as much as possible, the casing comprises a left side plate and a right side plate arranged oppositely in the left-right direction, the two slide rail assemblies are arranged on the left side plate and the right side plate respectively, and the two connecting plates are arranged adjacent to the left side plate and the right side plate respectively.

[0020] In order to ensure the oil fume absorption effect, the moving mechanism further comprises a first flow guide plate extending along the left-right direction, the left and right sides of which are connected with the two connecting plates and can move together with the connecting plates, one side of the first flow guide plate away from the air inlet is connected with the front side of the filter oil screen and is arranged at an angle with the filter oil screen, in the state that the smoke baffle opens the air inlet, the first flow guide plate moves to the position where the front side of the air inlet is located and extends towards the inside of the cabinet, the rear side of the air inlet is further provided with a second flow guide plate extending towards the inside of the cabinet and arranged along the left-right direction, the first flow guide plate and the second flow guide plate define a flow guide air duct in the cabinet and connected with the air inlet, and the wiping member is arranged at the inner side of the second flow guide plate and contacts the side of the filter oil screen facing the flow guide air duct.

[0021] In order to adapt to the structure of the near-suction type cabinet and reasonably utilize the space in the cabinet, the front side wall of the cabinet is inclined rearward from top to bottom, the first flow guide plate is inclined forward from top to bottom, and the filter oil screen is inclined rearward from top to bottom.

[0022] In order to ensure the cleaning effect and avoid affecting the air inlet air volume, in the state that the smoke baffle opens the air inlet, the wiping member contacts the rear part of the filter oil screen, and in the state that the smoke baffle closes the air inlet, the wiping member contacts the front part of the filter oil screen.

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

[0024] In order to ensure the smoke gathering and fume flow guiding effect in the opened state of the smoke baffle, in the state that the smoke baffle opens the air inlet, the smoke baffle is located in front of the air inlet, and the main body of the first inclined surface is attached to the area above the air inlet on the front side wall of the cabinet.

[0025] In order to avoid the interference problem between the strip-shaped raised part of the smoke baffle and the edge of the air inlet during the movement, the first inclined surface of the strip-shaped raised part has a recessed area adjacent to the second inclined surface, which is recessed towards the position of the front of the smoke baffle and extends along the left-right direction.

[0026] As improvement, the auxiliary connecting rods are also arranged in left and right two, the first ends of the two auxiliary connecting rods are respectively rotationally connected on the left side plate and the right side plate of the casing, and the second ends are respectively rotationally connected with the left and right sides of the strip-shaped raised portion of the smoke baffle.

[0027] As improvement, the driving member comprises a driving motor, and an output shaft of the driving motor is in transmission connection with the first end of the first connecting rod.

[0028] In order to clean the inner side of the filter oil screen, a spraying pipe arranged in the casing and arranged in left and right directions is further included, the spraying pipe is located on the side of the filter oil screen away from the air inlet, and the spraying pipe is provided with spraying holes arranged in sequence along the length direction of the spraying pipe.

[0029] Compared with the prior art, the advantages of the present application are as follows: the posture of the filter oil screen in the casing is adjusted by the movement mechanism for driving the movement of the smoke baffle, and compared with the traditional fixed oil screen structure, the dynamic adaptability to oil fume is stronger, and on this basis, the wiping member arranged in the casing can clean the surface of the filter oil screen during the movement of the filter oil screen, so that the wiping and cleaning of the surface of the oil screen can be realized once during each on-off process of the range hood (the smoke baffle is opened and closed), the purpose of free disassembly and washing is achieved, the self-cleaning function is realized, and the use experience of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Fig. 1 is a perspective view of the range hood of the embodiment of the present application (the smoke baffle is in the state of opening the air inlet);

[0031] Figure 2 Fig. 2 is another perspective view of the range hood of the embodiment of the present application (the smoke baffle is in the state of opening the air inlet);

[0032] Figure 3 Fig. 3 is a vertical sectional view of the smoke collecting cover part of the range hood of the embodiment of the present application along the front and back directions (the smoke baffle is in the state of opening the air inlet);

[0033] Figure 4 Fig. 4 is a perspective view of the range hood of the embodiment of the present application (the smoke baffle is in the state of closing the air inlet);

[0034] Figure 5 Fig. 5 is a vertical sectional view of the smoke collecting cover part of the range hood of the embodiment of the present application along the front and back directions (the smoke baffle is in the state of closing the air inlet). DETAILED DESCRIPTION

[0035] The present application will be further described in detail below with reference to the embodiment of the drawings.

[0036] The terms denoting orientation, such as "front", "back", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used in the description and claims of the present application to describe various example structural parts and elements of the present application, but are used only for the purpose of convenience in explanation and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms denoting orientation are only for illustration and should not be considered as limiting, such as "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0037] Figures 1-5 A preferred embodiment of the self-cleaning range hood of the present application is shown. The self-cleaning range hood comprises a housing 10 and a centrifugal fan arranged in the housing 10, the housing 10 generally comprises a fan frame 11 and a smoke collecting hood 12 arranged at the bottom of the fan frame 11, the inner cavity of the fan frame 11 is communicated with the inner cavity of the smoke collecting hood 12. The front side wall of the smoke collecting hood 12 is inclined downward from top to bottom, and the air inlet 120 extending along the left-right direction is arranged on the smoke collecting hood 12, and the external smoke gas can enter the smoke collecting hood 12 through the air inlet 120. The centrifugal fan is arranged in the fan frame 11, and the centrifugal fan generates negative pressure when operating, and the external oil fume can be sucked into the smoke collecting hood 12 through the air inlet 120. The bottom of the smoke collecting hood 12 is generally provided with an oil cup, which is a long strip extending left and right, used for receiving the oil stains flowing down from the smoke collecting hood 12. The front part of the smoke collecting hood 12 is also provided with a smoke baffle 20 which can deflect forward and backward relative to the smoke collecting hood 12, and the smoke baffle 20 can be deflected upward relative to the main body of the smoke collecting hood 12 by the driving of the movement mechanism, and specifically can be deflected forward to open the air inlet 120 and deflected backward to block the air inlet 120.

[0038] The movement mechanism for driving the smoke baffle 20 to move comprises 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 left and right, and the connecting plate 34 and the auxiliary connecting rod 35 are also two, one left and one right.

[0039] The driving member 31 is a driving motor arranged at the inner rear side of the smoke hood 12. The output shaft of the driving motor is in transmission connection with the first end of the first connecting rod 32, and can drive the first connecting rod 32 to deflect forward and backward around the left-right extending axis. The connecting plate 34 can be a triangular plate with an overall triangular shape, and the three corner positions of the connecting plate 34 are the first connecting point 341, the second connecting point 342 and the third connecting point 343 arranged in a triangular shape in the vertical plane. Specifically, the first connecting point 341, the second connecting point 342 and the third connecting point 343 are arranged in sequence from rear to front, and the second connecting point 342 is located above the first connecting point 341 and the third connecting point 343. The slide rail assembly is located above the connecting plate 34, and includes a slide rail 331 extending in the front-rear direction and a slide block 332 slidingly arranged on the slide rail 331. There are two groups of slide rail assemblies, and the slide rails 331 of the two groups of slide rail assemblies are arranged on the inner walls of the left side plate and the right side plate of the smoke hood 12, respectively. The connecting plate 34 also has two left-right symmetrically arranged connecting plates 34, one of which is in rotational connection with the first connecting point 341 of the first connecting rod 32. The second connecting point 342 of the connecting plate 34 is in rotational connection with the slide block 332 of the slide rail assembly above the connecting plate 34, and the third connecting point 343 is in rotational connection with the left and right sides of the strip-shaped raised portion 21 of the back of the smoke baffle 20. The auxiliary connecting rod 35 also has two left-right symmetrically arranged auxiliary connecting rods 35. The two auxiliary connecting rods 34 are located on the front side of the slide rail assembly, the first end of each auxiliary connecting rod 35 is in rotational connection with the corresponding side plate of the smoke hood 12, and the second end is in rotational connection with the strip-shaped raised portion 21 of the back of the smoke baffle 20. Among them, the auxiliary connecting rod 35 is located in front of the slide rail assembly, and the position where the strip-shaped raised portion 21 of the back of the smoke baffle 20 is connected with the second end of the auxiliary connecting rod 35 and the position where the strip-shaped raised portion 21 of the back of the smoke baffle 20 is connected with the third connecting point 343 of the connecting plate 34 do not coincide, specifically, the position where the strip-shaped raised portion 21 of the back of the smoke baffle 20 is connected with 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, as shown in Figure 2 FIG. 6, when the smoke baffle 20 is in the state of opening the air inlet 120, the second end of the auxiliary connecting rod 35 also extends out of the smoke hood 12 together with the smoke baffle 20.

[0040] The back of the smoke baffle 20 has a strip-shaped raised portion 21 which protrudes backward and extends along the length direction of the main body of the smoke baffle 20. Specifically, the strip-shaped raised portion 21 of the smoke baffle 20 can be formed by splicing two plate bodies, which have a first inclined surface 211 and a second inclined surface 212 arranged at an angle, wherein the first inclined surface 211 is located adjacent to one side of the front side edge of the smoke baffle 20, and the second inclined surface 212 is located adjacent to one side of the rear side edge of the smoke baffle 20. The strip-shaped raised portion 21 of the smoke baffle 20 is rotationally connected to the position where the first inclined surface 211 and the second inclined surface 212 meet, which is adjacent to the third connection point 343 of the two connecting plates 34. When the smoke baffle 20 is in the state of opening the air inlet 120, the smoke baffle 20 and its back strip-shaped raised portion 21 move out of the smoke collecting hood 12 and are located in front of the air inlet 120, and the main body of the first inclined surface 211 is attached to the area on the front side wall of the cabinet 10 which corresponds to the position above the air inlet 120, thereby avoiding or reducing the leakage of smoke from the gap between them, ensuring the smoke collection of the opened smoke baffle 20, and the second inclined surface 212 can better guide the smoke into the smoke collecting hood 12, improving the oil fume extraction effect. The first inclined surface 211 of the strip-shaped raised portion 21 has a recessed area 2110 which is recessed toward the position of the front surface of the smoke baffle 20 and extends in the left-right direction in the area adjacent to the second inclined surface 212, and the cross section of the recessed area 2110 is arc-shaped. The recessed area 2110 can avoid the interference problem between the strip-shaped raised portion 21 of the smoke baffle 20 and the edge of the air inlet 120 during movement.

[0041] Referring to Figure 3 The movement mechanism further includes a filter oil screen 13 and a first flow guide plate 361. The filter oil screen 13 and the first flow guide plate 361 both extend in the left-right direction and are connected to the two connecting plates 34 and can move together with the connecting plates 34. The first flow guide plate 361 is located in front of the filter oil screen 13, wherein the first flow guide plate 361 is inclined forward from top to bottom, and the filter oil screen 13 is inclined backward from top to bottom, and the rear side of the first flow guide plate 361 (i.e. the side edge of the first flow guide plate 361 away from the air inlet 120) is connected to the front side of the filter oil screen 13. The first flow guide plate 361 is arranged at an angle with the filter oil screen 13, specifically, the extension direction of the first flow guide plate 361 is consistent with the extension direction of the front side edge of the connecting plate 34 (i.e. the side edge between the third connection point 343 and the second connection point 342). The extension direction of the filter oil screen 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 connection point 341 and the second connection point 342). Under the drive of the drive mechanism, the filter oil screen 13 not only moves forward and backward, but also deflects around the left-right extending axis.

[0042] Referring to Figure 3The second guide plate 362 is arranged at the rear side of the air inlet 120 and extends into the smoke hood 12 along the left-right direction. When the smoke baffle 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 into the smoke hood 12. In this state, the extending direction of the first guide plate 361 is basically consistent with the extending direction of the second guide plate 362, that is, both extend from the air inlet 120 of the smoke hood 12 into the smoke hood 12. The first guide plate 361 and the second guide plate 362 define a guide air duct 40 in the machine shell 10, which is in communication with the air inlet 120. The filter oil net 13 is arranged at the outlet of the guide air duct 40.

[0043] The inner side of the second guide plate 362 (that is, the side away from the air inlet 120) is provided with a wiping member 37, which also extends along the left-right direction. Specifically, the wiping member 37 can be made of foamed plastic material. During the movement of the filter oil net 13 by the movement mechanism, the wiping member 37 is always in contact with the side of the filter oil net 13 facing the guide air duct 40, thereby cleaning the surface of the filter oil net 13. When the smoke baffle 20 is in the state of opening the air inlet 120, the wiping member 37 is in contact with the rear side of the filter oil net 13, without affecting the air inlet amount. When the smoke baffle 20 is in the state of closing the air inlet 120, the wiping member 37 is in contact with the front side of the filter oil net 13. Thus, in one cycle of opening and closing the air inlet 120 by the smoke baffle 20, the wiping member 37 can wipe the filter oil net 13 twice, thereby ensuring the cleaning effect.

[0044] The movement mechanism for moving the smoke baffle 20 adjusts the posture of the filter oil net 13 in the machine shell 10. Compared with the conventional fixed oil net structure, the dynamic adaptability to oil fume is stronger. On this basis, the wiping member 37 in the machine shell 10 can clean the surface of the filter oil net 13 during the movement of the filter oil net 13. Thus, in each on-off process of the range hood (corresponding to opening and closing by the smoke baffle 20), the surface of the oil net can be wiped and cleaned once, thereby achieving the function of free cleaning and self-cleaning, and improving the user experience.

[0045] In order to 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 the present embodiment further comprises a spray pipe 14 arranged in the casing 10 and extending in 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 above the wiper 37. The spray pipe 14 has a row of spray holes 140 arranged along its length direction, and the openings of the spray holes 140 face the wiper 37, i.e. the back and lower direction. Thus, most of the cleaning liquid sprayed from the spray pipe 14 will flow to the back side of the second baffle 362 and then into the oil cup at the bottom of the 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 storage tank arranged in the casing 10 or directly provided by an external storage tank, which is not limited herein.

Claims

1. A self-cleaning range hood, comprising: The casing (10) has an air inlet (120) on its front side; The smoke baffle (20) is movably mounted on the housing (10) and can open and close the air inlet (120) as its position changes. The motion mechanism has its power output end connected to the smoke baffle (20) and drives the smoke baffle (20) to move; Its features also include: The oil filter screen (13) is driven by the motion mechanism and is movably disposed inside the housing (10) in conjunction with the smoke baffle (20); Wiping component (37) is provided inside the housing (10). During the movement of the oil filter screen (13), the wiping component (37) is always in contact with the oil filter screen (13) to clean the surface of the oil filter screen (13). The motion mechanism includes: The driving member (31) and the first connecting rod (32) are connected at the first end of the first connecting rod (32) to the power output end of the driving member (31), so that the driving member (31) drives the rod to deflect back and forth around the left and right extended axis. The slide rail assembly is located inside the housing (10) and includes a slide rod (331) extending in the front-rear direction and a slider (332) slidably disposed on the slide rod (331); The connecting plate (34) has a first connecting point (341), a second connecting point (342) and a third connecting point (343) arranged in a triangle on a vertical plane. The first connecting point (341), the second connecting point (342) and the third connecting point (343) are arranged sequentially 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 the slider (332) of the 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 its first end rotatably connected to the housing (10) and its second end rotatably connected to the smoke baffle (20); There are two connecting plates (34) arranged opposite each other on the left and right. There are also two sets of slide rail assemblies arranged sequentially on the left and right. The filter oil screen (13) extends in the left and right direction and its left and right sides are connected to the two connecting plates (34) so ​​that it can move together with the connecting plates (34).

2. The self-cleaning range hood according to claim 1, characterized in that: The housing (10) includes a left side plate and a right side plate that are opposite to each other. The two slide rail assemblies are respectively disposed on the left side plate and the right side plate. The two connecting plates (34) are also disposed adjacent to the left side plate and the right side plate.

3. The self-cleaning range hood according to claim 2, characterized in that: The motion mechanism further includes a first guide plate (361), which extends in the left-right direction. Its left and right sides are connected to the two connecting plates (34) and can move together with them. One side of the first guide plate (361) away from the air inlet (120) is connected to the front side of the oil filter (13) and arranged at an angle to it. When the smoke baffle (20) is in the open air inlet (120) state, the first guide plate (361) moves to the air inlet (120). At the front side, extending toward the housing (10), the rear side of the air inlet (120) also has a second guide plate (362) extending toward the housing (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) communicating with the air inlet (120) in the housing (10). The wiping member (37) is located on the inner side of the second guide plate (362) and contacts the side of the filter oil screen (13) facing the guide air duct (40).

4. The self-cleaning range hood according to claim 3, characterized in that: The front sidewall of the housing (10) is inclined from top to bottom and backward, the first guide plate (361) is inclined from top to bottom and forward, and the filter oil screen (13) is inclined from top to bottom and backward.

5. The self-cleaning range hood according to claim 4, characterized in that: When the smoke baffle (20) is in the open air inlet (120) state, the wiping member (37) is in contact with the rear part of the oil filter (13). When the smoke baffle (20) is in the closed air inlet (120) state, the wiping member (37) is in contact with the front part of the oil filter (13).

6. The self-cleaning range hood according to claim 1, characterized in that: The back of the smoke baffle (20) has a rearward protruding strip-shaped raised portion (21) that extends along the length of the main body of the smoke baffle (20). 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) is located on one side adjacent to the front side of the smoke baffle (20), and the second inclined surface (212) is located on one side adjacent to the rear side of the smoke baffle (20). The left and right sides of the position where the first inclined surface (211) and the second inclined surface (212) of the strip-shaped raised portion (21) meet are respectively connected to the two connecting plates (34).

7. The self-cleaning range hood according to claim 6, characterized in that: When the smoke baffle (20) is in the open air inlet (120) state, the smoke baffle (20) is located in front of the air inlet (120), and the main body of the first inclined surface (211) is in contact with the area on the front side wall of the housing (10) corresponding to the area above the air inlet (120).

8. The self-cleaning range hood according to claim 7, characterized in that: The first inclined surface (211) of the strip-shaped raised portion (21) has a recessed area (2110) that is recessed toward the front of the smoke baffle (20) and extends in the left-right direction in the region adjacent to the second inclined surface (212).

9. The self-cleaning range hood according to claim 6, characterized in that: There are also two auxiliary connecting rods (35) arranged on the left and right. The first ends of the two auxiliary connecting rods (35) are rotatably connected to the left side plate and the right side plate of the housing (10), respectively, and the second ends are rotatably connected to the left and right sides of the strip-shaped raised part (21) of the smoke baffle (20).

10. The self-cleaning range hood according to claim 1, characterized in that: The drive unit (31) includes a drive motor, the output shaft of which is connected to the first end of the first connecting rod (32) in a transmission connection.

11. The self-cleaning range hood according to any one of claims 1 to 10, characterized in that: It also includes a spray pipe (14) disposed inside the housing (10) and arranged in the left-right direction. The spray pipe (14) is located on the side of the filter oil screen (13) away from the air inlet (120). The spray pipe (14) has spray holes (140) arranged sequentially along its length.

Images