Range hood

Abstract

The utility model discloses a kind of range hood, range hood includes: shell;Air bellow, the air bellow is set in the shell, the air bellow inside is formed with smoke collecting cavity, the bottom of the air bellow and the bottom of the shell are mutually spaced and formed with cavity, the bottom of the air bellow is formed with the first oil drip hole being linked with the smoke collecting cavity, the bottom of the shell is formed with second oil drip hole;Oil drip structure, the oil drip structure is set in the cavity, the oil drip structure is communicated between the first oil drip hole and the second oil drip hole. Thus, by setting the range hood, it can guide oil droplet in air bellow out of shell, avoid oil droplet directly drop to the periphery of second oil drip hole in shell, to improve oil stain collection effect;It can also avoid that airflow from second oil drip hole flows into cavity, to improve the suction effect of airflow for suctioning oil fume.

Description

Technical Field

[0001] This utility model relates to the field of smoke hood technology, and in particular to a smoke hood. Background Technology

[0002] A range hood, also known as a cooking hood or range extractor, is a kitchen appliance that purifies the kitchen environment. Installed above the stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors. It also condenses and collects these fumes, reducing pollution, purifying the air, and providing safety features such as protection against toxic substances and explosions.

[0003] In related technologies, existing range hoods typically include a blower box and an outer casing. The blower box is located inside the outer casing. When the high-temperature oil fumes encounter the inner wall of the blower box, they liquefy into oil droplets. The oil droplets can drip from the oil dripping holes on the blower box and the outer casing to the outside of the outer casing. However, when the oil droplets drip from the oil dripping holes of the blower box to the oil dripping holes of the outer casing, they are easy to drip onto the inner surface of the outer casing near the oil dripping holes, causing the problem of internal contamination of the outer casing. Utility Model Content

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a range hood that can guide oil droplets in the air box out of the outer casing, preventing oil droplets from dripping directly onto the area around the second oil drop hole inside the outer casing, and also preventing airflow entering from the second oil drop hole from flowing into the cavity.

[0005] According to a first aspect of the present invention, a range hood includes: a housing; a wind box disposed within the housing, wherein a smoke collection chamber is formed inside the wind box, the bottom of the wind box and the bottom of the housing are spaced apart and form a cavity, a first oil dripping hole communicating with the smoke collection chamber is formed at the bottom of the wind box, and a second oil dripping hole is formed at the bottom of the housing; and an oil dripping structure disposed in the cavity, the oil dripping structure communicating between the first oil dripping hole and the second oil dripping hole.

[0006] Therefore, by setting up this range hood, the oil droplets in the air box can be guided out of the outer shell, preventing the oil droplets from dripping directly onto the area around the second oil drop hole inside the outer shell, thereby improving the oil collection effect; it can also prevent the airflow entering from the second oil drop hole from flowing into the cavity, thereby improving the suction effect of the airflow used to extract oil fumes.

[0007] In some examples of this utility model, the oil dripping structure includes: a main body, one end of which is connected to the first oil dripping hole and the other end of which is connected to the second oil dripping hole; and a base plate, which is connected to one end of the main body and installed at the bottom of the bellows.

[0008] In some examples of this utility model, the edge of the first drip hole is provided with a first flange that bends toward the main body, the seat plate is provided with a mating surface around one end of the main body, the mating surface is adapted to the first flange; and / or the cross-sectional area of ​​the main body decreases in the direction away from the seat plate.

[0009] In some examples of this utility model, along the vertical direction, the top of the base plate abuts against the bottom of the air box; and / or the base plate is provided with a snap-fit ​​part, which engages with the bottom of the air box; and / or both the base plate and the air box are provided with connecting holes, and fasteners pass through the connecting holes of the base plate and the air box to install the base plate onto the air box.

[0010] In some examples of this utility model, the snap-fit ​​portion includes: a first snap-fit ​​portion and a second snap-fit ​​portion, the second snap-fit ​​portion being disposed at the outer peripheral edge of the seat plate, and the vertical distance from the first snap-fit ​​portion to the center line of the main body being less than the vertical distance from the second snap-fit ​​portion to the center line of the main body; the air box includes: a base plate, the base plate being provided with the first oil drip hole, the base plate being snap-fitted with the first snap-fit ​​portion; a side plate, the side plate being connected to one side of the base plate, the side plate being provided with a bent edge, the bent edge being snap-fitted with the second snap-fit ​​portion.

[0011] In some examples of this utility model, the outer shell has a second flange bent into the cavity at the second oil drip hole, and a collar portion is provided on the outer periphery of one end of the oil drip structure near the second oil drip hole to form a first groove. The collar portion is sleeved on the outside of the second flange, and the second flange extends into the first groove.

[0012] In some examples of this utility model, the bottom of the bellows is provided with a downwardly recessed oil collection groove, and the bottom wall of the oil collection groove is provided with the first dripping hole.

[0013] In some examples of this utility model, the bottom wall of the oil collecting tank is at least partially inclined in the direction close to the first dripping hole, and the first dripping hole is located at the lowest point of the bottom wall of the oil collecting tank.

[0014] In some examples of this utility model, an installation cavity is formed between the outer shell and the air box, the installation cavity is spaced apart from and communicates with the cavity; the range hood further includes: an air curtain device, the air curtain device is disposed in the installation cavity; and / or the range hood further includes: an oil cup, the oil cup is connected to the outer shell and located below the outer shell, adapted to collect oil flowing out from the second oil drip hole, and a gap is left between the oil cup and the outer shell to communicate with the second oil drip hole.

[0015] In some examples of this utility model, the outer shell is provided with an air inlet, and the air box is provided with an air intake that communicates with the smoke collection chamber. The air intake is opposite to and communicates with the air inlet. The air box is provided with a second groove recessed toward the side away from the outer shell on one side of the air intake. The outer shell is provided with a reinforcing plate on one side of the air inlet. The reinforcing plate is provided with a support portion that bends toward the second groove. The support portion extends into the second groove and is connected to the wall of the second groove.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of a range hood according to an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of a range hood according to an embodiment of the present utility model;

[0020] Figure 3 yes Figure 2 Enlarged view of region A in the middle;

[0021] Figure 4 This is a partial structural schematic diagram of a range hood according to an embodiment of the present utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of region B in the middle;

[0023] Figure 6 This is another sectional view of the range hood according to an embodiment of the present utility model;

[0024] Figure 7 yes Figure 6 Enlarged view of region C in the middle;

[0025] Figure 8 This is a schematic diagram of the oil dripping structure according to an embodiment of the present utility model;

[0026] Figure 9 This is an exploded view of the oil dripping structure according to an embodiment of the present invention.

[0027] Figure label:

[0028] 100. Range hood;

[0029] 10. Outer casing; 11. Second oil drip hole; 12. Second flange; 13. Air inlet; 14. Reinforcing plate; 141. Support; 15. Oil outlet;

[0030] 20. Bellows; 21. Smoke collection chamber; 22. Cavity; 23. First oil drip hole; 231. First flange; 25. Oil collection trough; 26. Mounting cavity; 27. Air intake; 28. Second groove; 291. Base plate; 292. Side plate; 2921. Bending edge;

[0031] 30. Oil dripping structure; 31. Main body; 32. Seat plate; 321. Mating surface; 322. Snap-fit ​​part; 3221. First snap-fit ​​part; 3222. Second snap-fit ​​part; 33. Connecting hole; 34. Collar part; 341. First groove;

[0032] 40. Air curtain device; 50. Oil cup. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0034] The following is for reference. Figures 1-9 According to the present invention, the range hood 100 can guide the oil droplets in the air box 20 out of the outer shell 10, preventing the oil droplets from dripping directly onto the area around the second oil drop hole 11 inside the outer shell 10, and also preventing the airflow entering from the second oil drop hole 11 from flowing into the cavity 22.

[0035] Combination Figures 1-9 As shown, the range hood 100 according to the first aspect of this utility model includes a housing 10, a blower box 20, and an oil dripping structure 30. The housing 10, as the main load-bearing structural component of the external outline of the range hood 100, protects the internal structures and provides sound insulation, reducing noise generated during operation. The blower box 20 is a crucial component for creating negative pressure and drawing in fumes inside the range hood 100. It guides the fumes along a designated path, effectively collecting and expelling them, while also reducing noise. When the range hood 100 is operating, the high-temperature fumes condense into liquid oil upon cooling (e.g., on the inner wall of the blower box 20). The oil dripping structure 30 guides the oil droplets (i.e., liquid oil) from the smoke collection chamber 21 to the outside of the housing 10, maintaining a clean environment inside the housing 10.

[0036] Specifically, the bellows 20 is disposed inside the outer shell 10, and a smoke collection chamber 21 is formed inside the bellows 20. The bottom of the bellows 20 is spaced apart from the bottom of the outer shell 10, and a cavity 22 is formed between the bottom of the bellows 20 and the bottom of the outer shell 10. A first oil dripping hole 23 is formed at the bottom of the bellows 20, which is connected to the smoke collection chamber 21. A second oil dripping hole 11 is formed at the bottom of the outer shell 10. An oil dripping structure 30 is disposed in the cavity 22 and is connected between the first oil dripping hole 23 and the second oil dripping hole 11.

[0037] Specifically, along the vertical direction, the bottom of the bellows 20 is located above the bottom of the outer shell 10, that is, above the first oil drop hole 23 and the second oil drop hole 11. The smoke collection chamber 21 can be used to collect oil fumes. When the high-temperature oil fumes come into contact with the inner wall of the smoke collection chamber 21, they liquefy into oil droplets. Under the action of gravity, the oil droplets can flow from the inside of the bellows 20 to the outside of the outer shell 10 through the movement path of the first oil drop hole 23-oil drop structure 30-second oil drop hole 11, which is conducive to achieving the oil droplet collection effect and makes it convenient for users to clean regularly.

[0038] Moreover, compared to the traditional method of oil dripping directly from the first oil droplet hole (i.e., the oil droplet hole on the bellows) to the second oil droplet hole (i.e., the oil droplet hole on the outer casing), the embodiment in this case adds an oil dripping structure 30 between the first oil droplet hole 23 and the second oil droplet hole 11. This can prevent oil droplets dripping from the first oil droplet hole 23 from causing oil stains on the surface of the second oil droplet hole 11 inside the outer casing 10, thereby keeping the inside of the outer casing 10 clean. It can also directly draw the fumes into the smoke collection chamber 21 through the oil dripping structure 30 between the first oil droplet hole 23 and the second oil droplet hole 11. In other words, it prevents the range hood 100 from entering the cavity 22 (instead of the smoke collection chamber 21 specifically for collecting fumes) through the second oil droplet hole 11 on the outer casing 10 during the fume extraction process. This can better increase the airflow for fume extraction, thereby improving the fume extraction effect.

[0039] Therefore, by setting up the range hood 100, the oil droplets in the air box 20 can be guided out of the outer shell 10, preventing the oil droplets from dripping directly onto the area around the second oil drop hole 11 inside the outer shell 10, thereby improving the oil collection effect; it can also prevent the airflow entering from the second oil drop hole 11 from flowing into the cavity 22, thereby improving the suction effect of the airflow used to extract oil fumes.

[0040] According to some optional embodiments of the present invention, combined with Figures 3-6 , Figure 8 and Figure 9 As shown, the oil dripping structure 30 includes a main body 31 and a base plate 32. One end of the main body 31 is connected to the first oil dripping hole 23, and the other end of the main body 31 is connected to the second oil dripping hole 11. The base plate 32 is connected to one end of the main body 31 and is installed at the bottom of the bellows 20.

[0041] The main body 31 has two ends connected to the first oil dripping hole 23 and the second oil dripping hole 11, respectively. This provides a designated delivery path for the oil to flow from the first oil dripping hole 23 to the second oil dripping hole 11, preventing oil droplets from falling into unwanted locations. The seat plate 32 is connected to the outer periphery of one end of the main body 31, and the two are connected as a solid whole. The seat plate 32 is installed at the bottom of the bellows 20. Since the seat plate 32 is plate-shaped, it can increase the contact area with the bottom of the bellows 20, thereby improving the connection stability and reliability of the oil dripping structure 30 and the bottom of the bellows 20.

[0042] Alternatively, combined Figure 3 , Figure 8 and Figure 9 As shown, the edge of the first oil drop hole 23 is provided with a first flange 231 that bends toward the main body 31, and the seat plate 32 is provided with a mating surface 321 surrounding one end of the main body 31, the mating surface 321 being adapted to the first flange 231.

[0043] In this configuration, the first flange 231 extends from the first oil droplet hole 23 toward the side closer to the main body 31 in the vertical direction. This allows the oil droplets to automatically slide down quickly along the first flange 231 under the action of gravity and converge into the main body 3131, avoiding turbulence or diffusion of the oil droplets and thus improving the collection efficiency of the oil droplets.

[0044] In addition, the mating surface 321 on the seat plate 32 surrounds the outer periphery of the first flange 231. The mating surface 321 can fit the contour of the first flange 231, thereby ensuring that the mating surface 321 on the seat plate 32 can be accurately fitted onto the outer periphery of the first flange 231. It can also play a circumferential blocking effect on oil droplets, thereby ensuring that the oil falling from the first oil drop hole 23 can be collected in the main body 31, avoiding the risk of oil seeping out of the oil drop structure 30 along the outer wall of the first oil drop hole 23.

[0045] Alternatively, combine Figure 8 and Figure 9 As shown, the cross-sectional area of ​​the main body 31 decreases in the direction away from the seat plate 32.

[0046] As arranged as described above, according to Bernoulli's principle, when oil droplets flow through the main pipe 31 with a gradually decreasing cross-sectional area, the flow velocity of the oil droplets will increase as the cross-sectional area decreases, thereby increasing the flow velocity of the oil droplets, shortening the residence time of the oil droplets in the main pipe 31, reducing the probability of oil droplets adhering to and remaining on the inner wall of the main pipe 31, and reducing the risk of blockage. Since the cross-sectional area of ​​the main pipe 31 gradually decreases, this is conducive to the collection of dispersed oil droplets into a continuous flow, avoiding turbulence caused by abrupt changes in cross-sectional area (such as sudden diameter changes that can easily cause oil droplet splashing or bubble generation), thereby ensuring the flow stability of the oil droplets.

[0047] Furthermore, along the vertical direction, the main pipe 31 extends obliquely between the bottom of the bellows 20 and the bottom of the outer casing 10. This allows the oil droplets to flow automatically along the oblique main pipe 31 under the influence of gravity, and also avoids the problem of oil droplets dripping and splashing midway and dripping noise due to uncontrolled flow velocity (such as oil droplets being only subject to vertical gravity), thereby improving the flow stability of the oil droplets.

[0048] Alternatively, in combination Figure 4 and Figure 5 As shown, along the vertical direction, the top of the seat plate 32 abuts against the bottom of the bellows 20. This arrangement can maximize the contact area between the two, thereby improving the reliability of their connection.

[0049] Alternatively, in combination Figure 5 and Figure 8 As shown, the base plate 32 is provided with a snap-fit ​​part 322, which snaps into the bottom of the air box 20.

[0050] The above arrangement allows the base plate 32 and the bottom of the bellows 20 to be connected as a single unit via a snap-fit ​​connection. Compared to other connection methods (such as screwing or bonding), the snap-fit ​​connection eliminates the need for additional parts, avoiding unnecessary material consumption. It also provides sufficient holding force to ensure that the two components do not loosen or detach during use. Furthermore, the snap-fit ​​connection structure is simple, reliable, and offers quick and convenient disassembly and installation (allowing for rapid assembly and disassembly of the base plate 32 and the bottom of the bellows 20), effectively reducing the time and cost required for maintenance and replacement.

[0051] For example, combining Figure 8 As shown, there are two snap-fit ​​parts 322, one of which is located at the connection point between the base plate 32 and the main body 31, and the other is located at the outer peripheral edge of the base plate 32.

[0052] The above arrangement allows the snap-fit ​​parts 322 at different positions on the seat plate 32 to snap into the bottom of the air box 20, thereby increasing the number of connection points between the two and improving the reliability of the connection and the uniformity of the force.

[0053] Alternatively, in combination Figure 8 As shown, both the base plate 32 and the air box 20 have connection holes 33 at their bottoms. Fasteners pass through the connection holes 33 of the base plate 32 and the air box 20 to install the base plate 32 onto the bottom of the air box 20.

[0054] In this design, fasteners pass through the connection holes 33 of the base plate 32 and the air box 20 in sequence, connecting the base plate 32 and the air box 20 into a solid whole, thereby improving the connection reliability and overall consistency of the two. Moreover, compared with conventional connection methods (such as adhesive bonding), the screw connection method in this case usually only requires simple tools (such as wrenches or screwdrivers) to complete the installation and disassembly, making the operation simple and quick; and it can be disassembled and reused multiple times, facilitating maintenance and replacement.

[0055] Specifically, in combination Figure 5 and Figure 8 As shown, the snap-fit ​​part 322 includes a first snap-fit ​​part 3221 and a second snap-fit ​​part 3222. The second snap-fit ​​part 3222 is disposed at the outer peripheral edge of the seat plate 32. The vertical distance from the first snap-fit ​​part 3221 to the center line of the main pipe body 31 is less than the vertical distance from the second snap-fit ​​part 3222 to the center line of the main pipe body 31. The air box 20 includes a bottom plate 291 and a side plate 292. The bottom plate 291 is provided with a first oil drip hole 23. The bottom plate 291 is snap-fitted with the first snap-fit ​​part 3221. The side plate 292 is connected to one side of the bottom plate 291. The side plate 292 is provided with a bent edge 2921. The bent edge 2921 is snap-fitted with the second snap-fit ​​part 3222.

[0056] It is understandable that the second snap-fit ​​part 3222 is located at the outer peripheral edge of the seat plate 32, and the first snap-fit ​​part 3221 is located at a position closer to the center line of the main body 31 than the second snap-fit ​​part 3222. In this way, a snap-fit ​​relationship can be established between the seat plate 32 and the bellows 20 at different positions, thereby increasing the force path of the connection between the seat plate 32 and the bellows 20 and improving the connection stability between the two.

[0057] The first snap-fit ​​part 3221 passes through the first oil dripping hole 23 on the base plate 291 from bottom to top and snaps into the base plate 291. An avoidance opening is provided at the edge of the first oil dripping hole 23 to avoid the first snap-fit ​​part 3221, ensuring that the first snap-fit ​​part 3221 can be firmly snapped into the surface of the base plate 291. The side plate 292 is connected to the outer side of the end of the base plate 291, and the bottom of the side plate 292 is provided with a bent edge 2921, which extends in the left and right direction. The second snap-fit ​​part 3222 snaps into the bent edge 2921. In this way, the first snap-fit ​​part 3221 and the second snap-fit ​​part 3222 of the seat plate 32 can establish a snap-fit ​​connection with the base plate 291 and the side plate 292 of the bellows 20, respectively. This can limit the displacement of the oil dripping structure 30 in different directions, thereby ensuring the relative positional stability between the oil dripping structure 30 and the bellows 20.

[0058] According to some optional embodiments of the present invention, combined with Figure 4 , Figure 5 and Figure 9As shown, the outer shell 10 has a second flange 12 bent into the cavity 22 at the second oil drip hole 11. The outer periphery of the end of the oil drip structure 30 near the second oil drip hole 11 is provided with a collar portion 34 to form a first groove 341. The collar portion 34 is sleeved on the outside of the second flange 12, and the second flange 12 extends into the first groove 341.

[0059] Specifically, the first groove 341 is open to the side facing the second flange 12. The first groove 341 is constructed in a ring shape, which is conducive to its adaptation to the round second flange 12. The second flange 12 extends into the first groove 341, that is, the oil droplets do not form a gap with the inner wall of the main body 31 in the direction of oil droplet flow in the main body 31. This can prevent oil droplets from flowing along the inner wall of the main body 31 onto the inner surface of the outer casing 10, thereby ensuring a clean environment inside the outer casing 10 around the second oil drop hole 11.

[0060] According to some optional embodiments of the present invention, combined with Figures 2-5 As shown, the bottom of the wind box 20 is provided with a downwardly recessed oil collection groove 25, and the bottom wall of the oil collection groove 25 is provided with a first oil drip hole 23.

[0061] The oil collection tank 25 can confine the dispersed oil droplets within the tank, preventing the oil droplets from spreading. It facilitates the collection and centralized management of oil droplets in the smoke collection chamber 21 and can also serve as a temporary storage for oil droplets. Furthermore, the first oil drop hole 23 on the bottom wall of the oil collection tank 25 facilitates the discharge of oil droplets collected in the oil collection tank 25 out of the oil collection tank 25.

[0062] Specifically, in combination Figures 2-5 As shown, the bottom wall of the oil collecting tank 25 is at least partially inclined in the direction close to the first oil dripping hole 23, and the first oil dripping hole 23 is located at the lowest point of the bottom wall of the oil collecting tank 25.

[0063] As arranged as described above, the bottom wall of the oil collecting tank 25 is at least partially inclined downwards in the direction of the first oil droplet hole 23. This allows the oil droplets in the oil collecting tank 25 to be automatically guided to the first oil droplet hole 23 for discharge by utilizing the component of gravity, thus preventing the oil droplets from accumulating in the oil collecting tank 25 and improving the discharge efficiency. Moreover, the first oil droplet hole 23 is located at the lowest point of the bottom wall of the oil collecting tank 25, which ensures that the oil droplets can be completely discharged, thereby improving the discharge effect.

[0064] According to some optional embodiments of the present invention, combined with Figure 6 As shown, an installation cavity 26 is formed between the outer casing 10 and the air box 20. The installation cavity 26 is spaced apart from the cavity 22 and is connected to the cavity 22. The smoke hood 100 also includes an air curtain device 40, which is disposed in the installation cavity 26.

[0065] Among them, the air curtain device 40 is a functional structure that optimizes the effect of smoke collection and exhaust by forming an airflow barrier through airflow. Its core function is to use aerodynamic principles to form an airflow wall in front of the air inlet 13 of the range hood 100 for sucking up oil fumes, to prevent the spread of oil fumes and guide them to be efficiently sucked in, thereby improving the cleanliness of the kitchen environment.

[0066] Alternatively, combined Figure 5 and Figure 6 As shown, the range hood 100 also includes an oil cup 50, which is connected to the outer casing 10 and is located below the outer casing 10 to collect the oil flowing out from the second oil drip hole 11. A gap is left between the oil cup 50 and the outer casing 10 to communicate with the second oil drip hole 11.

[0067] The oil cup 50 collects oil droplets from the second drip hole 11, preventing them from dripping onto the stove, floor, or cabinets, making it easy for users to clean them regularly. Furthermore, the oil cup 50 can be disassembled for cleaning (mostly with a snap-on or drawer design), and is made of transparent material (such as PC plastic), allowing users to easily observe the oil level and prevent spills.

[0068] According to some optional embodiments of the present invention, combined with Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the outer casing 10 is provided with an air inlet 13, and the air box 20 is provided with an air intake 27 that communicates with the smoke collection chamber 21. The air intake 27 is opposite to the air inlet 13 and is connected to the air inlet 13. The air box 20 is provided with a second groove 28 recessed away from the outer casing 10 on one side of the air intake 27. The outer casing 10 is provided with a reinforcing plate 14 on one side of the air inlet 13. The reinforcing plate 14 is provided with a support portion 141 that bends toward the second groove 28. The support portion 141 extends into the second groove 28 and is connected to the wall of the second groove 28.

[0069] Specifically, since the bellows 20 is located inside the outer casing 10, the bellows 20 is provided with an air intake for sucking up oil fumes, and the outer casing 10 is provided with an air inlet 13 that communicates with the air intake 27. This allows the oil fumes outside the casing to be smoothly sucked into the smoke collection chamber 21 through the air inlet 13 and the air intake 27 in sequence, thereby improving the rationality of the space arrangement.

[0070] Furthermore, since the air box 20 generates a negative pressure on the outside oil fumes on one side of the air intake 27, the structure of the air box 20 at the air intake 27 is subjected to greater stress. The air box 20 is provided with a second groove 28 at this location. The second groove 28 can effectively increase the spatial mode near the air intake 27, thereby increasing the structural strength and bending and torsional stiffness at this location and improving structural reliability. Moreover, the outer shell 10 is provided with a reinforcing plate 14 near the air inlet 13. The reinforcing plate 14 can increase the weight and spatial mode of the outer shell 10 near the air inlet 13, thereby effectively improving the structural strength and bending and torsional stiffness at this location, improving structural reliability, and thus avoiding the risk of deformation and twisting of the outer shell 10 and the range hood 100.

[0071] In particular, combined Figure 7 As shown, the support portion 141 on the reinforcing plate 14 extends toward the second groove 28 side of the bellows 20, and the support portion 141 is connected to the wall of the second groove 28. This allows the bellows 20 and the outer shell 10 to establish a force transmission path through the support portion 141, thereby increasing the force distribution capability and improving the structural reliability of the bellows 20 and the outer shell 10.

[0072] According to some optional embodiments of the present invention, there are multiple first oil drip holes 23, which are distributed at intervals at the bottom of the bellows 20; there are multiple second oil drip holes 11, which are distributed at intervals at the bottom of the outer shell 10; there are multiple oil drip structures 30, which are connected one-to-one between the multiple first oil drip holes 23 and the multiple second oil drip holes 11.

[0073] As shown above, by increasing the number of oil droplet locations, the collection speed of oil droplets can be increased, the residence time of oil droplets on the inner wall of the smoke collection chamber 21 can be reduced, and the probability of oil droplet adhesion can be reduced, thereby improving the cleanliness of the inside of the range hood 100. It can also increase the collection range of oil droplets, thereby achieving the effect of uniform collection of oil droplets, thus ensuring the cleanliness of the inside of the range hood 100 and extending the cleaning cycle.

[0074] Alternatively, combined Figure 4 and Figure 5 As shown, the bottom of the outer casing 10 is also provided with a plurality of oil outlet holes 15, which are spaced apart from the second oil drip holes 11, and the number of oil outlet holes 15 exceeds the number of second oil drip holes 11. For example, the number of second oil drip holes 11 is 2 and the number of oil outlet holes 15 is 5, but it is not limited thereto.

[0075] Since the cavity 22 is connected to the oil outlet 15, the oil outlet 15 can be used to guide the oil droplets in the cavity 22 to the outside of the housing, thereby successfully draining the oil droplets in the cavity 22 and improving the cleanliness of the environment inside the cavity 22. The second oil outlet 11 is connected to the first oil outlet 23 through the oil dripping structure 30, and the oil droplets in the air box 20 can flow directly to the outside of the housing through the oil dripping structure 30, avoiding contamination of the cavity 22. In this way, through two independent oil drainage methods, the clean environment inside the range hood 100 can be effectively improved, thereby improving the user experience and enhancing the market competitiveness of the range hood 100.

[0076] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0077] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood (100), characterized in that, include: Outer shell (10); A bellows (20) is disposed inside the outer shell (10). A smoke collection chamber (21) is formed inside the bellows (20). The bottom of the bellows (20) is spaced apart from the bottom of the outer shell (10) and forms a cavity (22). A first oil drip hole (23) communicating with the smoke collection chamber (21) is formed at the bottom of the bellows (20). A second oil drip hole (11) is formed at the bottom of the outer shell (10). An oil-drip structure (30) is disposed in the cavity (22) and the oil-drip structure (30) is connected between the first oil-drip hole (23) and the second oil-drip hole (11).

2. The range hood (100) according to claim 1, characterized in that, The dripping structure (30) includes: The main body (31) has one end connected to the first drip hole (23) and the other end connected to the second drip hole (11). Seat plate (32), the seat plate (32) is connected to one end of the main body (31), and the seat plate (32) is installed at the bottom of the bellows (20).

3. The range hood (100) according to claim 2, characterized in that, The edge of the first drip hole (23) is provided with a first flange (231) that bends toward the main body (31), and the seat plate (32) is provided with a mating surface (321) around one end of the main body (31), the mating surface (321) being adapted to the first flange (231); and / or The cross-sectional area of ​​the main body (31) decreases in the direction away from the seat plate (32).

4. The range hood (100) according to claim 2, characterized in that, Along the vertical direction, the top of the seat plate (32) abuts against the bottom of the bellows (20); and / or The seat plate (32) is provided with a snap-fit ​​part (322), which snaps into the bottom of the bellows (20); and / or Both the seat plate (32) and the air box (20) are provided with connection holes (33). Fasteners are passed through the connection holes (33) of the seat plate (32) and the air box (20) to install the seat plate (32) onto the air box (20).

5. The range hood (100) according to claim 4, characterized in that, The snap-fit ​​portion (322) includes: A first latching part (3221) and a second latching part (3222) are provided at the outer peripheral edge of the seat plate (32). The vertical distance from the first latching part (3221) to the center line of the main tube body (31) is less than the vertical distance from the second latching part (3222) to the center line of the main tube body (31). The bellows (20) includes: The base plate (291) is provided with the first drip hole (23), and the base plate (291) is engaged with the first snap-fit ​​part (3221); Side plate (292), the side plate (292) is connected to one side of the bottom plate (291), the side plate (292) is provided with a bent edge (2921), the bent edge (2921) is engaged with the second snap-fit ​​part (3222).

6. The range hood (100) according to claim 1, characterized in that, The outer shell (10) has a second flange (12) bent into the cavity (22) at the second oil drip hole (11). The outer periphery of the oil drip structure (30) near the second oil drip hole (11) is provided with a collar portion (34) to form a first groove (341). The collar portion (34) is sleeved on the outside of the second flange (12), and the second flange (12) extends into the first groove (341).

7. The range hood (100) according to claim 1, characterized in that, The bottom of the bellows (20) is provided with a downwardly recessed oil collection groove (25), and the bottom wall of the oil collection groove (25) is provided with the first dripping hole (23).

8. The range hood (100) according to claim 7, characterized in that, The bottom wall of the oil collection tank (25) is at least partially inclined in the direction close to the first drip hole (23), and the first drip hole (23) is located at the lowest point of the bottom wall of the oil collection tank (25).

9. The range hood (100) according to claim 1, characterized in that, An installation cavity (26) is formed between the outer shell (10) and the bellows (20), and the installation cavity (26) is spaced apart from and communicates with the cavity (22); The range hood (100) also includes: Air curtain device (40), said air curtain device (40) being disposed within said mounting cavity (26); and / or The range hood (100) also includes: An oil cup (50) is connected to the housing (10) and located below the housing (10) to collect oil flowing from the second oil drip hole (11). A gap is left between the oil cup (50) and the housing (10) to communicate with the second oil drip hole (11).

10. The range hood (100) according to claim 1, characterized in that, The outer shell (10) is provided with an air inlet (13), and the air box (20) is provided with an air intake (27) that communicates with the smoke collection chamber (21). The air intake (27) is opposite to and communicates with the air inlet (13). The air box (20) has a second groove (28) recessed on one side of the air intake (27) away from the outer shell (10). The outer shell (10) has a reinforcing plate (14) on one side of the air inlet (13). The reinforcing plate (14) has a support part (141) bent toward the second groove (28). The support part (141) extends into the second groove (28) and is connected to the wall of the second groove (28).

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