Range hood
By setting a recessed part and an air inlet at the air collection port of the range hood, and combining it with a guide and oil guide groove design, the problem of oil dripping to the outside is solved, achieving better smoke extraction effect and aesthetics, while maintaining air volume and negative pressure distribution.
Patent Information
- Application Number
- CN202423189087.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-23
AI Technical Summary
During use, oil droplets easily drip onto the outside of existing range hoods, affecting cleanliness and appearance.
A recessed component is installed at the air inlet, and multiple air inlets are opened on the recessed component. The air inlets are arranged in a polygonal pattern. The recessed component is closer to the inside of the smoke collection assembly than the air inlet. The guide part extends at an angle to guide the oil droplets. Combined with the design of the oil guide groove and the oil leakage groove, the oil droplets drip as much as possible into the inside of the smoke collection assembly when they fall.
It effectively reduces oil droplets falling onto the outside of the range hood, improving smoke extraction efficiency and aesthetics, while maintaining appropriate airflow and negative pressure distribution.
Smart Images
Figure CN223755428U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of kitchen appliances, in particular to a range hood. BACKGROUND
[0002] In modern kitchens, the range hood can discharge the oil fume generated in the cooking process during cooking to ensure the cleanliness and health of the kitchen environment. With the continuous development of range hood technology, further requirements are put forward for the performance of the range hood. On the one hand, the range hood needs to have good air inlet performance, and on the other hand, it needs to reduce oil droplets from falling outside the range hood. CONTENT OF THE UTILITY MODEL
[0003] Embodiments of the present application provide a range hood, which can improve the technical problem of oil dripping of the range hood.
[0004] Embodiments of the present application provide a range hood. The range hood comprises a rack and a smoke collecting assembly. The smoke collecting assembly is installed on the rack, and a smoke inlet is formed on the smoke collecting assembly. The smoke inlet is provided with a sinking piece corresponding thereto, and the sinking piece is closer to the inside of the smoke collecting assembly than the plane where the smoke inlet is located. An air inlet hole is formed on the sinking piece.
[0005] Optionally, in the first direction, the air inlet holes are arranged in multiple rows on the sinking piece, and in the second direction, the air inlet holes are arranged in at least one row; the first direction and the second direction are perpendicular.
[0006] Optionally, the length of the air inlet hole extending in the second direction is greater than the length of the air inlet hole extending in the first direction.
[0007] Optionally, the sinking piece is provided with a guide portion extending obliquely to the inside of the smoke collecting assembly, the guide portion is provided corresponding to the air inlet hole, the normal projection of the guide portion to the third direction is at least partially located in the air inlet hole; and the guide portion extends obliquely to the middle part of the smoke collecting assembly, and the third direction is perpendicular to the first direction and the second direction.
[0008] Optionally, the guide portion is connected to the side of the air inlet hole away from the middle part of the smoke collecting assembly.
[0009] Optionally, the distance between the sinking piece and the plane where the smoke inlet is located is between 5-10mm, and the angle between the oblique direction of the guide portion and the plane where the smoke inlet is located is between 20°-60°.
[0010] Optionally, the arrangement direction of the rack and the smoke collecting assembly is the second direction, and at least one edge of the air inlet hole away from the rack in the second direction is arranged at an angle with the second direction and the first direction.
[0011] Optionally, the distance between the sinking piece and the plane where the smoke inlet is located is between 5-10mm; the side length of the air inlet hole is between 3mm-5mm, and the distance between adjacent air inlet holes is between 1-3mm.
[0012] Optionally, at least part of the sinker is spaced apart from the edge of the air collecting port close to the rack to form an air inlet gap, and at least part of the sinker is spaced apart from the edge of the air collecting port away from the rack to form a liquid leakage gap.
[0013] Optionally, the smoke collecting assembly comprises a smoke collecting body and a lifting body movably connected with the smoke collecting body, the smoke collecting body is connected with the rack, the lifting body and the smoke collecting body form a main air inlet, the air collecting port is arranged on the smoke collecting body, and the smoke machine further comprises an opening and closing piece arranged corresponding to the air collecting port, and the opening and closing piece is movably connected with the smoke collecting body.
[0014] Optionally, the smoke machine further comprises a function piece and a function shell, the function piece is arranged on the lifting body, the function piece has an inner surface facing the smoke collecting body and an outer surface corresponding to the main air inlet, and the function shell is arranged inside the smoke collecting body, and the function shell is provided with an oil guide groove and an oil leakage groove in communication with each other, the oil guide groove is arranged corresponding to the air collecting port, and the oil leakage groove is arranged corresponding to the inner surface of the function piece.
[0015] The beneficial effects of the present application are: different from the prior art, by arranging the sinker at the air collecting port and opening a plurality of air inlet holes on the sinker, the smoke machine can have a suitable air inlet amount at the air collecting port, can reduce the influence on the internal negative pressure distribution of the smoke machine, and has good smoke suction effect at the air collecting port. Further, the sinker is arranged closer to the inside of the smoke collecting assembly than the air collecting port, so that the oil droplets formed during the air inlet process at the air collecting port can accumulate on the sinker, so that the oil droplets can drop as much as possible into the inside of the smoke collecting assembly when dropping, so as to improve the technical problem of oil dripping of the smoke machine. By arranging the air collecting port in a polygonal shape, the oil droplets can flow along the edges of the polygon and accumulate at the corner points of the polygon, thereby achieving a certain oil guiding effect. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structural schematic diagram of an embodiment of the smoke machine of the present application;
[0017] Figure 2 is Figure 1 is a sectional structural schematic diagram of the smoke machine shown in at A-A;
[0018] Figure 3 is Figure 2 is a local enlarged structural schematic diagram at A;
[0019] Figure 4 is Figure 2 is a schematic diagram of the smoke machine shown in the front side of the air collecting port;
[0020] Figure 5 is Figure 2 is a schematic diagram of the smoke machine shown in the rear side of the air collecting port;
[0021] Figure 6 is Figure 5 a top view of the structure of the air collecting port shown in
[0022] Figure 7 is Figure 1 a schematic view of the flow direction of the air inside the range hood shown in
[0023] Figure 8 is Figure 1 a schematic view of the flow direction of the oil drops inside the range hood shown in
[0024] Figure 9 is Figure 1 a schematic view of the structure inside the range hood shown in
[0025] Figure 10 is Figure 1 a schematic view of the structure inside the range hood shown in
[0026] Figure 11 is a schematic view of the structure of another embodiment of the range hood of the present application;
[0027] Figure 12 is Figure 11 a schematic view of the structure of the range hood shown in
[0028] Figure 13 is Figure 12 a schematic view of the structure of the range hood shown in
[0029] Figure 14 is Figure 12 a schematic view of the range hood shown in
[0030] Figure 15 is Figure 12 a schematic view of the range hood shown in
[0031] Figure 16 is Figure 11 a schematic view of the flow direction of the air inside the range hood shown in
[0032] Figure 17 is Figure 11 a schematic view of the flow direction of the oil drops inside the range hood shown in
[0033] Figure 18 is Figure 11 a schematic view of the structure inside the range hood shown in
[0034] Figure 19 is Figure 11 a schematic view of the structure inside the range hood shown in DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0036] In combination with Figure 1 and Figure 11 , the present application provides a range hood 1. The range hood 1 comprises a frame 10 and a smoke collecting assembly 20, and the smoke collecting assembly 20 is provided with a smoke collecting opening 211. The smoke collecting assembly 20 is mounted on the frame 10, and the range hood 1 can be mounted on a wall or the like mounting position through the frame 10. The range hood 1 has a mounting surface, for example, when the range hood 1 is mounted on a wall, the surface of the range hood 1 abutting against the wall is the mounting surface of the range hood 1. The frame 10 is provided with an air outlet (not shown in the figure), and the air outlet can be connected with an external flue through a pipeline. The frame 10 is further provided with a volute (not shown in the figure), and the volute is provided with a centrifugal fan (not shown in the figure). The volute can be in communication with the inside of the smoke collecting assembly 20, and the convection generated by the rotation of the centrifugal fan can drive the gas in the smoke collecting assembly 20 to be discharged through the air outlet.
[0037] The smoke collecting assembly 20 is mounted on the frame 10, and the smoke collecting assembly 20 can collect flue gas and then discharge the flue gas through the frame 10. The smoke collecting assembly 20 comprises a smoke collecting main body 21 and a lifting main body 22, and the lifting main body 22 is movably mounted on the smoke collecting main body 21. The lifting main body 22 can form a main air inlet 201 together with the smoke collecting main body 21. The range hood 1 further comprises an opening and closing piece 30, and the opening and closing piece 30 is movably mounted on the smoke collecting main body 21. The smoke collecting main body 21 is further provided with the smoke collecting opening 211, and the opening and closing piece 30 is movably mounted on the smoke collecting main body 21 and is correspondingly arranged with the smoke collecting opening 211. The lifting main body 22 moves relative to the smoke collecting main body 21 to open or close the main air inlet 201. The opening and closing piece 30 can move relative to the smoke collecting main body 21 to open or close the smoke collecting opening 211. When the opening and closing piece 30 is opened, it can also play a technical effect of gathering smoke. The main air inlet 201 and the smoke collecting opening 211 can cooperate to respectively suck flue gas at different positions, so as to improve the oil fume extraction effect of the range hood 1. The lifting main body 22 moves to close the main air inlet 201, and the opening and closing piece 30 moves to close the smoke collecting opening 211, which can also improve the aesthetic degree of the range hood 1 in the closed state.
[0038] In some embodiments, in combination with Figure 1 and Figure 11For example, the main air inlet 201 and the air collecting port 211 can both be directed to draw in the flue gas away from the installation surface (e.g. wall) of the range hood 1. The range hood 1 can be arranged to draw in the flue gas from the side of the cooking appliance, leaving the space above the cooking appliance. In this way, the main air inlet 201 and the air collecting port 211 are not too far away from the cooking appliance, reducing the possibility of reducing the flue gas suction effect.
[0039] In some embodiments, the range hood 1 has a front side and a back side, and the back side of the range hood 1 can be in abutment with a wall surface or a placement surface, and the main air inlet 201 and the air collecting port 211 are both directed to the front side of the range hood 1. When the range hood 1 is in the open state, the air collecting body 21 is arranged between the rack 10 and the lifting body 22, and the main air inlet 201 is farther away from the rack 10 than the air collecting port 211. In this way, the main air inlet 201 is closer to the cooking appliance, and most of the flue gas can be quickly drawn in. The air collecting port 211 is farther away from the cooking appliance than the main air inlet 201, and the flue gas that cannot be completely drawn in by the main air inlet 201 can be drawn in. In this way, the flue gas generated during cooking can be drawn in in a zoned manner, improving the flue gas suction effect of the range hood 1.
[0040] In some embodiments, during the opening process of the range hood 1, the lifting body 22 moves away from the air collecting body 21 to open the main air inlet 201, and the opening and closing member 30 moves away from the air collecting port 211 to open the air collecting port 211. During the closing process of the range hood 1, the lifting body 22 moves closer to the air collecting body 21 to close the main air inlet 201, and the opening and closing member 30 moves closer to the air collecting port 211 to close the air collecting port 211.
[0041] In some embodiments, the air collecting body 21 includes a rear plate and a front plate arranged at intervals and a plurality of side plates connecting the front plate and the rear plate, and the air collecting port 211 is formed on the side of the front plate away from the lifting body 22, and the lifting body 22 can be accommodated between the front plate and the rear plate.
[0042] In some embodiments, the front plate, the side plates and the rear plate are arranged to form a cuboid shape of the air collecting body 21. The thickness of the side plates in the interval direction between the front plate and the rear plate is maintained at a predetermined value. And / or the range hood 1 has an installation surface parallel to the rear plate and the front plate, and the distance between each part of the front plate and the installation surface is equal. In other words, the air collecting body 21 of the present application has a uniform thickness, thereby reducing the occupation of the cooking space by the air collecting body 21. Optionally, the thickness of the rack 10 in the direction away from the installation surface is greater than the thickness of the air collecting body 21 in the direction away from the installation surface. Optionally, the distance between the front plate and the rear plate is maintained at a predetermined value. It should be noted that the front plate, the rear plate or the side plate can be subjected to sheet metal processing during manufacturing for strength and assembly considerations, resulting in some protrusions or recesses, and the aforementioned distance measurement can take the plane where the largest area of the plate is located as the reference.
[0043] In some embodiments, for the convenience of description, the range hood 1 has a first direction, a second direction and a third direction which are orthogonal. Among them, the spacing direction of the frame 10 and the smoke collecting body 21 is the second direction, the direction towards which the main air inlet 201 and the air collecting opening 211 (that is, the direction from the rear side of the range hood 1 to the front side) is the third direction, and the direction perpendicular to the second direction and the third direction is the first direction. Alternatively, the arrangement direction of the air inlet holes 41 described hereinafter is the first direction. Alternatively, the axis direction of the rotation of the opening and closing piece 30 relative to the smoke collecting body 21 is parallel to the first direction. In the case where the range hood 1 is installed to a wall surface, the second direction can be the direction of gravity, the third direction can be the direction away from the wall surface, and the first direction can be the horizontal direction. Alternatively, the air collecting openings 211 are symmetrically arranged on the smoke collecting assembly 20, and are respectively arranged on both sides of the frame 10 in the first direction.
[0044] In combination with Figures 2 to 5 , and Figures 12 to 15 In some embodiments, a sunken piece 40 is arranged at the air collecting opening 211, and the sunken piece 40 is closer to the inside of the smoke collecting assembly 20 than the plane on which the air collecting opening 211 is located. Alternatively, a plurality of air inlet holes 41 are arranged on the sunken piece 40. Alternatively, the air inlet holes 41 are arranged in a polygonal shape. The air inlet holes 41 can be arranged in a rectangular shape or a hexagonal shape.
[0045] In combination with Figure 7 , Figure 8 , Figure 16 and Figure 17 , Figure 7 and Figure 16 The flow direction of the airflow inside the range hood 1 in the embodiments of the range hood 1 of the present application is shown in Figure 8 and Figure 17 The flow direction of the oil droplets inside the range hood 1 in the embodiments of the range hood 1 of the present application is shown in By arranging the sunken piece 40 at the air collecting opening 211 and arranging a plurality of air inlet holes 41 on the sunken piece 40, the range hood 1 can have a suitable air inlet amount at the air collecting opening 211, and can have a good smoke suction effect at the air collecting opening 211 while reducing the influence on the distribution of negative pressure inside the range hood 1. Further, the sunken piece 40 is arranged to be closer to the inside of the smoke collecting assembly 20 than the air collecting opening 211, so that the oil droplets formed during the air inlet process at the air collecting opening 211 can accumulate on the sunken piece 40, and the oil droplets can drop as much as possible inside the smoke collecting assembly 20 when dropping, so as to improve the technical problem of oil dripping outside the range hood 1. By arranging the air collecting opening 211 in a polygonal shape, the oil droplets can flow along the edges of the polygon and accumulate at the corner points of the polygon, thereby achieving a certain oil guiding effect.
[0046] In some embodiments, the air inlets 41 are arranged in a plurality of rows in the first direction, and are arranged in at least one row in the second direction. The first direction and the second direction are perpendicular. For example, the air inlets 41 can be arranged in only one row in the first direction, but the air inlets 41 can have a longer length in the second direction (for example, the air inlets 41 can extend through the sink 40 in the second direction). For another example, the air inlets 41 can have the same length in the first direction and the second direction. The air inlets 41 can be arranged in a plurality of rows in the second direction. Alternatively, the air inlets 41 in two adjacent rows in the second direction can be arranged in a staggered manner.
[0047] In some embodiments, the air inlets 41 have a length extending in the second direction that is greater than a length extending in the first direction. The length extending in the second direction of the air inlets 41 refers to the longest distance between the inner walls of the air inlets 41 in the second direction. The length extending in the first direction of the air inlets 41 refers to the longest distance between the inner walls of the air inlets 41 in the first direction. In this way, the sink 40 can have a grid shape, thereby increasing the air inlet area of the air inlets 41 on the sink 40 as much as possible. Since the second direction is the direction of gravity when the extractor hood 1 is installed, the air inlets 41 extending in the second direction for a longer length can also facilitate the oil droplets to gather in the second direction, so that the oil droplets can form liquid droplets to fall into the inside of the smoke collection assembly 20 under less accumulation, thereby reducing the accumulation of oil stains on the sink 40.
[0048] In combination Figures 2 to 6 In some embodiments, the sink 40 extends to the inside of the smoke collection assembly 20 in an inclined manner and is provided with a guide portion 42 corresponding to the air inlets 41, the guide portion 42 has a projection in the third direction that is at least partially located in the air inlets 41, and the guide portion 42 extends to the middle of the smoke collection assembly 20 in an inclined manner, and the third direction is perpendicular to the first direction and the second direction. On the one hand, the guide portion 42 can guide the airflow entering from the air inlets 41 to the middle of the smoke collection assembly 20, and then the airflow is discharged through the rack 10. On the other hand, when the flue gas enters the inside of the smoke collection assembly 20 through the air inlets 41, the oil will adhere to the guide portion 42 and form oil droplets after a long period of accumulation. Since the guide portion 42 extends towards the inside of the smoke collection assembly 20, the oil droplets will flow into the inside of the smoke collection assembly 20 along the guide portion 42, thereby reducing the occurrence of oil droplet leakage. On the other hand, the guide portion 42 can cover the air inlets 41 in the third direction in the above manner, thereby reducing the visibility of the inside of the smoke collection assembly 20 from the air inlets 41, thereby improving the appearance of the extractor hood 1. Alternatively, the guide portion 42 is arranged in a spaced manner with the upper and lower edges of the air inlets, so as to increase the air inlet area and form an oil leakage space, thereby facilitating the oil droplets to fall into the inside of the smoke collection assembly 20.
[0049] In some embodiments, the guide portion 42 is connected to the air inlet hole 41 at a side away from the middle of the smoke collection assembly 20. In other words, the guide portion 42 is connected to the edge of the air inlet hole 41 at the side away from the middle of the smoke collection assembly 20. In this way, the difficulty of forming the sinker 40 can be reduced, and the production of the sinker 40 can be facilitated.
[0050] In some embodiments, the sinker 40 comprises a sinking portion and a connecting portion 52, and the sinking portion is connected to the edge of the air inlet hole 211 through the connecting portion 52. The sinking portion can be provided in a plate shape, and the connecting portion 52 can smoothly connect the sinking portion to the edge of the air inlet hole 211. Optionally, the air inlet hole 41 is provided through the sinking portion in the second direction and at least partially on the connecting portion 52. The projection of the part of the air inlet hole 41 on the connecting portion 52 in the second direction is located inside the smoke collection assembly 20. The part of the air inlet hole 41 on the connecting portion 52 close to the side of the rack 10 can be used for the flue gas to enter, and the air inlet area of the air inlet hole 41 is increased. The part of the air inlet hole 41 on the connecting portion 52 away from the side of the rack 10 can be used for the oil droplets to fall into the smoke collection assembly 20, and the oil droplets in the smoke collection assembly 20 can enter the oil cup.
[0051] In combination Figure 3 and Figure 6 In some embodiments, the distance between the sinking portion 40 and the plane on which the air inlet hole 211 is located is between 5-10mm. For example, 6mm, 7mm, 8mm or 9mm. The angle between the inclined direction of the guide portion 42 and the plane on which the air inlet hole 211 is located is between 20°-60°. For example, 30°, 40°, 45° or 50°. The sinking portion 40 and the guide portion 42 with the above parameters can have a suitable processing difficulty, and can have the above technical effects.
[0052] In combination Figure 14 and Figure 15 In some embodiments, the arrangement direction of the rack 10 and the smoke collection assembly 20 is the second direction, and the at least one edge of the air inlet hole 41 away from the side of the rack 10 in the second direction is arranged at an angle with the second direction and the first direction. In other words, after the hood 1 is installed, the at least one edge of the air inlet hole 41 close to the lower side is arranged at an angle with the horizontal direction. For example, when the air inlet hole 41 is polygonal, at least one corner of the polygon is arranged downward. In this way, the spacing of the air inlet hole 41 in the first direction can be tapered in the direction of the rack 10 towards the smoke collection assembly 20, and thus the shape of the air inlet hole 41 can guide the oil droplets to be collected and then fall into the smoke collection assembly 20, so as to reduce the generation of oil stains.
[0053] In some embodiments, the sidewall of the air inlet hole 41 is inclined downwardly in the direction towards the inside of the smoke collection assembly 20. In this way, the sidewall of the air inlet hole 41 can also guide the oil droplets to the inside of the smoke collection assembly 20, so as to reduce the generation of oil leakage.
[0054] In combination Figures 13 to 15 In some embodiments, the distance between the subsidence member 40 and the plane where the air inlet 211 is located is between 5-10mm, for example, 6mm, 7mm, 8mm or 9mm. The side length of the air inlet hole 41 is between 3mm-5mm, for example, 4mm. The distance between adjacent air inlet holes 41 is between 1-3mm, for example, 2mm. In this way, the subsidence member 40 has a suitable air inlet area, and the air volume can be improved under the condition of the same rotating speed. The hexagonal air inlet hole 41 with the above parameters also has the effect of flow regulation and noise reduction.
[0055] In some embodiments, at least part of the subsidence member 40 is spaced apart from the edge of the air inlet 211 close to the rack 10 to form an air inlet gap 401. The formation of the air inlet gap 401 can increase the air inlet volume of the smoke collection assembly 20 at the air inlet 211, so as to improve the smoke suction effect of the smoke machine 1. At least part of the subsidence member 40 is spaced apart from the edge of the air inlet 211 away from the rack 10 to form a liquid leakage gap 402. The formation of the liquid leakage gap 402 can make the oil droplets generated on the subsidence member 40 drop to the inside of the smoke collection assembly 20 through the liquid leakage gap 402, so as to reduce the generation of oil leakage.
[0056] In combination Figure 1 , Figure 11 , Figures 7 to 9 , Figures 16 to 18 In some embodiments, the smoke machine 1 further comprises a functional member 70 and a functional housing 60. The functional member 70 is arranged on the lifting main body 22, and has an inner surface facing the smoke collection main body 21 and an outer surface corresponding to the main air inlet 201. The functional housing 60 is arranged inside the smoke collection main body 21, and has an oil guide groove 61 and an oil leakage groove 62 which are in communication with each other. The oil guide groove 61 is arranged corresponding to the air inlet 211, and the oil leakage groove 62 is arranged corresponding to the inner surface of the functional member 70.
[0057] The functional part 70 can be arranged in the middle of the main air inlet 201, and the outer surface of the functional part 70 can at least prevent flue gas from entering the main smoke collection body 21 from the middle of the main air inlet 201. According to the centrifugal fan characteristics of the smoke machine 1, the negative pressure on both sides of the main air inlet 201 is larger, and the negative pressure in the middle is smaller. During the rising process of the oil fume, the oil fume on both sides rises faster, and the oil fume in the middle region rises slower. In the case that the middle part of the main air inlet 201 is not blocked, the airflow with different rising speeds will encounter vortex in the middle region, increasing the noise. By arranging the outer surface of the functional part 70 to prevent and reduce the airflow in the middle part from entering the main air inlet 201, the noise generated during the operation of the smoke machine 1 can be reduced.
[0058] In combination with Figure 9 and Figure 18 The oil guide groove 61 of the functional shell 60 can be arranged corresponding to the rack 10 to receive the oil droplets falling from the rack 10. The oil guide groove 61 can also be arranged corresponding to the air inlet 211 to receive the oil droplets falling from the sinking part 40. Further, by arranging the oil leakage groove 62, the oil droplets in the oil guide groove 61 can be directed to flow (for example, falling into the oil cup). Further, the functional shell 60 is arranged between the rack 10 and the functional part 70, and the inner surface of the functional part 70 is arranged corresponding to the oil leakage groove 62, so that the oil droplets can be guided to the back of the functional part 70, and then the back of the functional part 70 can guide the oil droplets to the oil cup. Optionally, the inside of the functional shell 60 can be arranged with an electronic control assembly, which can be arranged corresponding to the front plate of the smoke collection body 21 to accept the touch of the user. Optionally, the lower edge of the functional part 70 is closer to the inside of the smoke collection assembly 20 than the upper edge, or the functional part 70 is arranged downward and inwardly inclined.
[0059] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the contents of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.
Claims
1. A range hood, characterized by, The exhaust hood comprises: a rack a smoke collecting assembly mounted on the rack, and a smoke inlet is formed on the smoke collecting assembly wherein a sink is arranged corresponding to the smoke inlet, the sink is closer to the inside of the smoke collecting assembly than the plane where the smoke inlet is located, and an air inlet hole is formed on the sink.
2. The exhaust hood according to claim 1, wherein: in a first direction, a plurality of air inlet holes are arranged on the sink in a row, and in a second direction, at least one row of air inlet holes is arranged, and the first direction and the second direction are perpendicular.
3. The exhaust hood according to claim 2, wherein: the length of the air inlet hole extending in the second direction is greater than the length of the air inlet hole extending in the first direction.
4. The exhaust hood according to claim 3, wherein: the sink is arranged to extend obliquely to the inside of the smoke collecting assembly, and a guide part is arranged corresponding to the air inlet hole, the guide part is at least partially located in the air inlet hole in a normal projection in a third direction, and the guide part extends obliquely to the middle part of the smoke collecting assembly, and the third direction is perpendicular to the first direction and the second direction.
5. The exhaust hood according to claim 4, wherein: the guide part is connected to the side of the air inlet hole away from the middle part of the smoke collecting assembly.
6. The exhaust hood according to claim 4, wherein: the distance between the sink and the plane where the smoke inlet is located is between 5-10mm, and the angle between the oblique direction of the guide part and the plane where the smoke inlet is located is between 20°-60°.
7. The exhaust hood according to any one of claims 2 or 3, wherein: the arrangement direction of the rack and the smoke collecting assembly is the second direction, and at least one edge of the air inlet hole away from the rack in the second direction is arranged at an angle with the second direction and the first direction.
8. The exhaust hood according to claim 6, wherein: the distance between the sink and the plane where the smoke inlet is located is between 5-10mm, the side length of the air inlet hole is between 3mm-5mm, and the distance between adjacent air inlet holes is between 1-3mm.
9. The exhaust hood according to claim 6, wherein: at least part of the sink is arranged at a distance from the edge of the side of the smoke inlet close to the rack to form an air inlet gap, and at least part of the sink is arranged at a distance from the edge of the side of the smoke inlet away from the rack to form a liquid leakage gap.
10. The exhaust hood according to any one of claims 1-3, wherein: the smoke collecting assembly comprises a smoke collecting body and a lifting body movably connected with the smoke collecting body, the smoke collecting body is connected with the rack, the lifting body and the smoke collecting body form a main air inlet, the smoke inlet is arranged on the smoke collecting body, and the exhaust hood further comprises an opening and closing part arranged corresponding to the smoke inlet, and the opening and closing part is movably connected with the smoke collecting body.
11. The exhaust hood according to claim 10, wherein: The smoke machine further comprises a functional part and a functional shell, the functional part is arranged on the lifting main body, the functional part has an inner surface facing the smoke collecting main body and an outer surface corresponding to the main air inlet, and the functional shell is arranged inside the smoke collecting main body, the functional shell is provided with an oil guide groove and an oil leakage groove which are communicated with each other, the oil guide groove is arranged corresponding to the air inlet, and the oil leakage groove is arranged corresponding to the inner surface of the functional part.