Range hood

Abstract

A range hood comprises a fan frame and an exhaust fume collecting hood arranged below the fan frame, a fan is arranged in the fan frame, an air inlet cavity communicated with the fan is formed in the fan frame, a fume inlet is formed in the front side of the exhaust fume collecting hood, and an oil screen assembly is arranged at the fume inlet. An oil guide plate is arranged in the exhaust fume collecting hood, is fixedly connected with the exhaust fume collecting hood, is arranged on the rear side of the oil screen assembly, and is provided with an inclined flow guide surface, a plurality of flow guide holes are formed in the flow guide surface, and the flow guide holes correspond to the connecting ports of the exhaust fume collecting hood. Compared with the prior art, the oil guide plate has the advantages that the oil guide plate not only can enable oil dirt in the range hood to flow out along the oil guide plate, but also can prevent the hands of a user from stretching into the fan of the fan frame, and plays a role in protecting the user, so that an air inlet ring does not need to be mounted at the air inlet of the fan, and the internal structure of the range hood is more reasonable.

Description

Technical Field

[0001] The utility model relates to kitchen equipment, in particular to a range hood. Background Art

[0002] A range hood is a commonly used kitchen appliance. A fan system is provided inside the casing of the range hood. The negative pressure generated by the fan system sucks cooking fumes into the casing, and after being accelerated by the fan system, the cooking fumes are guided out of the room, thereby purifying the kitchen environment. The cooking fumes inhaled by the range hood will condense inside the casing, thereby forming oil stains. The oil stains may drip onto the stove top, thereby affecting the use effect of the range hood.

[0003] To solve the above problems, as shown in a Chinese invention with the patent number CN201811462201.8 (the authorized announcement number is CN109405021B), the range hood includes a casing, a fan and an oil guiding member. An air inlet cavity formed by enclosing the fan and the casing is formed on one side of the air inlet of the fan. The oil guiding member is arranged in the air inlet cavity. The oil guiding member has an inclined guiding surface. The guiding surface covers the top of the air inlet cavity. The highest point of the guiding surface is not lower than the highest point of the air inlet. The lowest point of the guiding surface abuts against the side wall of the air inlet cavity to guide the oil droplets condensed on the guiding surface to the side wall of the air inlet cavity, thereby preventing the oil droplets from dripping and splashing, and also facilitating the collection of the oil droplets into the oil cup.

[0004] There is also a Chinese utility model as shown in the patent number CN202222903535.2 (the authorized announcement number is CN218864287U). The range hood includes a smoke collecting hood and a fan frame arranged above the smoke collecting hood. A fan is arranged inside the fan frame. An air inlet is arranged at the rear side of the fan. A honeycomb-shaped air inlet ring is arranged on the air inlet. The air inlet ring can prevent a user's hand from reaching into the volute of the fan, thereby preventing the user from touching the impeller. If the above-mentioned oil guiding member is adopted for the range hood and the oil guiding member is arranged higher than the air inlet in the air inlet cavity, an air inlet ring also needs to be arranged at the air inlet of the fan of the range hood to prevent the user's hand from reaching into the fan, resulting in a more complex internal structure of the range hood, more components and higher production costs. Therefore, further improvements are made to the range hood. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a range hood with an oil guiding plate arranged between the fan and the oil mesh according to the above-mentioned current technical situation.

[0006] The technical solution adopted by the present utility model to solve the above technical problems is as follows: This range hood includes a fan frame and a smoke collecting hood arranged below the fan frame. A fan is provided inside the fan frame, and an air inlet cavity communicating with the fan is formed inside the fan frame. A smoke inlet is provided on the front side of the smoke collecting hood, and an oil net assembly is provided at the smoke inlet. It is characterized in that: A connection port communicating with the air inlet cavity is provided at the top of the smoke collecting hood. An oil guiding plate is provided inside the smoke collecting hood. The oil guiding plate is fixedly connected to the smoke collecting hood. The oil guiding plate is arranged at the rear side of the oil net assembly. The oil guiding plate has an inclined guiding surface, and a plurality of guiding holes are provided on the guiding surface. The guiding holes are correspondingly arranged with the connection port of the smoke collecting hood.

[0007] In order to fixedly connect the oil guiding plate to the smoke collecting hood, preferably, bending parts extending downward are respectively provided on the left and right sides and the front side of the smoke collecting hood at the connection port. The oil guiding plate includes an inclined guiding surface and a vertically arranged mounting surface. The guiding surface is fixedly connected to the bending part, and the mounting surface is fixedly connected to the rear wall of the smoke collecting hood.

[0008] In order to optimize the spatial layout of the range hood, preferably, partition plates are respectively provided on the left and right sides of the oil guiding plate. The peripheral walls of the partition plates are respectively fixedly connected to the oil guiding plate and the smoke collecting hood. The two partition plates divide the space inside the smoke collecting hood into a working area for smoking and sealed areas on the left and right sides of the working area. The oil guiding plate is located in the working area. The oil guiding plate and the partition plates form a working area for smoking inside the smoke collecting hood. The space of the working area is relatively large, making the air inlet efficiency of the range hood higher. And the working area corresponds to the connection port of the smoke collecting hood, making the working channel inside the range hood smoother; in addition, the partition plates can not only divide the space inside the smoke collecting hood, but also improve the strength and rigidity of the smoke collecting hood.

[0009] In order to reduce the escape of oil fume, preferably, a smoke baffle is further provided on the front side of the smoke collecting hood and a driving mechanism for driving the smoke baffle to rotate. The smoke baffle is rotatably connected to the smoke collecting hood, and the driving mechanism is arranged in the sealed area. The driving mechanism can drive the smoke baffle to open or close, and the driving mechanism is arranged in the sealed area, which can play a role of sealing and protecting the driving mechanism and prevent the driving mechanism from being polluted by oil fume.

[0010] In order to improve the smoking efficiency of the range hood, preferably, a groove is provided at the center of the guiding surface. The groove is in a triangular pyramid shape, and a plurality of guiding holes are symmetrically arranged on the left and right sides of the groove. The groove in the shape of a triangular pyramid can play a role of concentrating flow and accelerating speed, and diverting flow and breaking vortex. Concentrating flow and accelerating speed can improve the smoke exhaust rate, thereby improving the oil fume absorption effect. Diverting flow and breaking vortex means eliminating the generated vortex, thereby reducing noise and improving the working efficiency of the range hood.

[0011] To enable the oil screen assembly to be disassembled for cleaning, preferably, the back of the oil screen assembly is provided with clamping claws, the front side of the smoke collecting hood is provided with a panel assembly, the air inlet is arranged on the panel assembly, and the panel assembly is provided with buckles corresponding to the clamping claws. Through the cooperation of the clamping claws and the buckles, the detachable connection between the oil screen assembly and the panel assembly is realized. A quick-release structure is formed by the clamping claws and the buckles, so that the oil screen assembly and the panel assembly are detachably connected, facilitating the user to clean the oil screen assembly.

[0012] To prevent the oil stains of the range hood from dripping onto the stove top, preferably, it further includes an oil cup capable of collecting oil stains. The bottom of the smoke collecting hood is provided with a plurality of oil discharge holes for the oil stains to flow out, the oil screen assembly is provided with a plurality of mesh holes, the oil cup is arranged below the oil discharge holes and the mesh holes, and the oil stains in the fan frame and the smoke collecting hood flow into the oil cup through the oil discharge holes and / or the mesh holes. The oil cup can receive and collect the oil stains dripping from the fan frame and the smoke collecting hood, thus preventing the oil stains of the range hood from dripping onto the stove top.

[0013] Further, the vertical section of the diversion surface is in an inverted V shape. A plurality of upper oil guide holes and lower oil guide holes are respectively arranged at the upper and lower ends of the diversion surface. The upper oil guide holes are arranged above the oil screen assembly, and the oil stains flowing out of the upper oil guide holes flow into the oil cup through the mesh holes of the oil screen assembly. The lower oil guide holes are arranged above the oil discharge holes, and the oil stains flowing out of the lower oil guide holes flow into the oil cup through the oil discharge holes. The oil stains in the fan frame drip onto the diversion surface, and due to the vertical section of the diversion surface being in an inverted V shape, the oil stains flow out from the upper oil guide holes and the lower oil guide holes respectively along the diversion surface. The oil stains flowing out of the upper oil guide holes can flow to the oil cup along the mesh holes of the oil screen assembly, and the oil stains flowing out of the lower oil guide holes can flow to the oil cup from the oil discharge holes along the rear wall of the smoke collecting hood.

[0014] To facilitate the outflow of the oil stains in the fan frame, preferably, an air inlet is arranged at the rear side of the fan, and an upper oil guide plate is arranged at the air inlet of the fan. The upper oil guide plate includes a connecting plate fixedly connected to the volute of the fan and an inclined plate arranged above the connecting plate, so that the oil stains in the fan frame can flow along the inclined plate to the volute of the fan, and then the oil stains flow downward along the volute of the fan. The oil stains in the fan frame can flow to the volute of the fan through the upper oil guide plate, and then the oil stains in the fan frame can flow out smoothly.

[0015] Further, an oil guide box is arranged at the bottom of the fan volute. The oil stains on the fan volute can flow into the oil guide box. An oil leakage port is arranged at the bottom of the oil guide box, and the oil leakage port is arranged above the oil guide plate, so that the oil stains in the oil guide box can flow to the oil guide plate. The oil guide box can receive the oil stains flowing down along the fan volute, and the oil stains flow to the oil guide plate through the oil leakage port of the oil guide box, and then flow into the oil cup through the upper oil guide holes and the lower oil guide holes of the oil guide plate respectively.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: By arranging a fixed-connected oil guide plate inside the smoke collecting hood, and the diversion holes on the oil guide plate correspond to the connection ports on the smoke collecting hood that communicate with the air inlet cavity of the fan frame. Therefore, the oil guide plate can not only make the oil stains inside the range hood flow out along it, but also prevent the user's hand from reaching into the fan inside the fan frame, playing a protective role for the user. Thus, there is no need to install an air inlet ring at the air inlet of the fan, making the internal structure of the range hood more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of an embodiment of the present utility model;

[0018] Figure 2 is a cross-sectional view of an embodiment of the present utility model;

[0019] Figure 3 is a schematic structural view of the smoke collecting hood, oil guide plate and panel assembly in an embodiment of the present utility model;

[0020] Figure 4 is a schematic structural view of the smoke collecting hood, oil guide plate and partition in an embodiment of the present utility model;

[0021] Figure 5 is a schematic structural view of the smoke collecting hood in an embodiment of the present utility model;

[0022] Figure 6 is a schematic structural view of the oil guide plate in an embodiment of the present utility model;

[0023] Figure 7 is an exploded schematic view of the panel assembly and the oil screen assembly in an embodiment of the present utility model;

[0024] Figure 8 is a schematic structural view of the fan in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0026] As Figures 1 to 8 shown, it is the best embodiment of the present utility model.

[0027] As Figure 1 and Figure 2As shown in the figure, the range hood of this embodiment includes a fan frame 1, a smoke collecting hood 2, a fan 3, an oil net assembly 4, an oil guiding plate 5, a partition plate 6, a smoke baffle 7, a panel assembly 8, and an oil cup 9. The smoke collecting hood 2 is arranged below the fan frame 1. A fan 3 is arranged inside the fan frame 1. An air inlet cavity 11 communicating with the fan 3 is formed inside the fan frame 1. A smoke inlet is arranged on the front side of the smoke collecting hood 2. An oil net assembly 4 is arranged at the smoke inlet. A panel assembly 8 is arranged on the front side of the smoke collecting hood 2. The smoke inlet is arranged on the panel assembly 8. The oil net assembly 4 is detachably connected to the panel assembly 8. And the smoke baffle 7 is also arranged on the front side of the smoke collecting hood 2. The smoke baffle 7 is rotatably connected to the smoke collecting hood 2. A driving mechanism for driving the smoke baffle 7 to rotate is further arranged inside the smoke collecting hood 2. The driving mechanism can drive the smoke baffle 7 to rotate to open or close the smoke inlet. In addition, the oil cup 9 is used for collecting oil stains. A plurality of oil drainage holes 25 for the oil stains to flow out are arranged at the bottom of the smoke collecting hood 2. A plurality of mesh holes 42 are arranged on the oil net assembly 4. The oil cup 9 is arranged below the oil drainage holes 25 and the mesh holes 42. The oil stains inside the fan frame 1 and the smoke collecting hood 2 flow into the oil cup 9 through the oil drainage holes 25 and the mesh holes 42.

[0028] As Figures 3 to 6As shown in the figure, a connection port 21 communicating with the air inlet cavity 11 is provided at the top of the smoke collecting hood 2 of this embodiment. Bent portions 22 extending downward are respectively provided on the left and right sides and the front side of the smoke collecting hood 2 at the connection port 21. The oil guide plate 5 includes an inclined diversion surface 51 and a vertically arranged mounting surface 52. The diversion surface 51 is fixedly connected to the bent portion 22, and the mounting surface 52 is fixedly connected to the rear wall of the smoke collecting hood 2. The oil guide plate 5 is arranged at the rear side of the oil mesh assembly 4, that is, along the direction of oil fume flow, the oil guide plate 5 is located downstream of the oil mesh assembly 4. A plurality of diversion holes 511 are provided on the diversion surface 51, and the diversion holes 511 are arranged corresponding to the connection port 21 of the smoke collecting hood 2. Among them, the oil stains dripping in the fan frame 1 will reach the diversion surface 51 of the oil guide plate 5. The vertical section of the diversion surface 51 is in an inverted V shape. A plurality of upper oil guide holes 512 and lower oil guide holes 513 are respectively provided at the upper and lower ends of the diversion surface 51, so that the oil stains flow out from the upper oil guide holes 512 and the lower oil guide holes 513 along the diversion surface 51 respectively. The upper oil guide holes 512 are arranged above the oil mesh assembly 4, and the oil stains flowing out from the upper oil guide holes 512 flow into the oil cup 9 through the mesh holes 42 of the oil mesh assembly 4. The lower oil guide holes 513 are arranged above the oil discharge holes 25, and the oil stains flowing out from the lower oil guide holes 513 flow into the oil cup 9 through the oil discharge holes 25. And a groove 53 is provided at the center of the diversion surface 51. The groove 53 is in a triangular pyramid shape. The triangular pyramid-shaped groove 53 can play the role of concentrating flow and accelerating speed, and diverting and breaking vortex. A plurality of diversion holes 511 are symmetrically arranged on the left and right sides of the groove 53. In addition, partition plates 6 are respectively provided on the left and right sides of the oil guide plate 5. The peripheral walls of the partition plates 6 are respectively fixedly connected to the oil guide plate 5 and the smoke collecting hood 2. The partition plates 6 improve the strength and rigidity of the smoke collecting hood 2. The two partition plates 6 divide the space inside the smoke collecting hood 2 into a working area 23 for smoking and sealed areas 24 on the left and right sides of the working area 23. The oil guide plate 5 is located in the working area 23. The space of the working area 23 is relatively large, making the air inlet efficiency of the range hood higher. And the working area 23 is arranged corresponding to the connection port 21 of the smoke collecting hood 2, making the working channel of the range hood smoother. The driving mechanism is arranged in the sealed area 24. The sealed area 24 plays a role of sealing and protecting the driving mechanism, avoiding the driving mechanism being polluted by oil stains.

[0029] As Figure 7 shown, a claw 41 is provided on the back of the oil mesh assembly 4 of this embodiment, and a buckle 81 corresponding to the claw 41 is provided on the panel assembly 8. Through the cooperation of the claw 41 and the buckle 81, a quick-release structure is formed, so as to realize the detachable connection between the oil mesh assembly 4 and the panel assembly 8, which is convenient for the user to clean the oil mesh assembly 4.

[0030] As Figure 8As shown in the figure, an air inlet 31 is provided at the rear side of the fan 3 of this embodiment. An upper oil guide plate 32 is provided at the air inlet 31 of the fan 3. The upper oil guide plate 32 includes a connecting plate 321 fixedly connected to the volute of the fan 3 and an inclined plate 322 disposed above the connecting plate 321, so that the oil stains in the fan frame 1 can flow along the inclined plate 322 to the volute of the fan 3, and then the oil stains flow downward along the volute of the fan 3. And an oil guide box 33 is provided at the bottom of the volute of the fan 3. The oil stains on the volute of the fan 3 can flow into the oil guide box 33. A leakage oil port 331 is provided at the bottom of the oil guide box 33. The leakage oil port 331 is disposed above the oil guide plate 5, so that the oil stains in the oil guide box 33 can flow onto the oil guide plate 5.

[0031] The working process of this embodiment is as follows: The driving mechanism of the range hood drives the smoke baffle 7 to rotate, thereby opening the smoke inlet. The cooking fumes are sequentially passed through the mesh holes 42 of the oil mesh assembly 4, the diversion holes 511 of the oil guide plate 5, and the connection port 21 of the smoke collecting hood 2, and then enter the air inlet cavity 11 in the fan frame 1. The fumes are sucked into the fan 3 from the air inlet 31 and finally discharged outdoors through the fan 3; the oil stains in the fan frame 1 can flow to the volute of the fan 3 through the upper oil guide plate 32. The oil stains in the fan frame 1 can flow along the volute of the fan 3 into the oil guide box 33. The oil guide box 33 flows onto the diversion surface 51 of the oil guide plate 5 through the leakage oil port 331 at the bottom. And the oil stains in the working area 23 of the smoke collecting hood 2 are also concentrated on the diversion surface 51 of the oil guide plate 5 and the oil mesh assembly 4. The oil stains on the diversion surface 51 flow into the upper oil guide hole 512 and the lower oil guide hole 513 respectively. The oil stains flowing out of the upper oil guide hole 512 can flow into the oil cup 9 through the mesh holes 42. The oil stains flowing out of the lower oil guide hole 513 can flow into the oil cup 9 through the oil discharge hole 25. In addition, the oil stains on the oil mesh assembly 4 also flow along the mesh holes 42 into the oil cup 9.

Claims

1. A range hood, comprising a fan frame (1) and a smoke collecting hood (2) arranged below the fan frame (1), wherein a fan (3) is arranged inside the fan frame (1), an air inlet cavity (11) connected to the fan (3) is formed inside the fan frame (1), a smoke inlet is arranged at the front side of the smoke collecting hood (2), and an oil net assembly (4) is arranged at the smoke inlet, characterized in that: The top of the smoke hood (2) is provided with a connection port (21) communicating with the air inlet chamber (11); an oil guide plate (5) is provided inside the smoke hood (2); the oil guide plate (5) is fixedly connected to the smoke hood (2); the oil guide plate (5) is arranged on the rear side of the oil net assembly (4); the oil guide plate (5) has an inclined guide surface (51); a plurality of guide holes (511) are provided on the guide surface (51); the guide holes (511) are arranged corresponding to the connection port (21) of the smoke hood (2).

2. The range hood according to claim 1, characterized in that: The smoke hood (2) is provided with downwardly extending bent portions (22) on the left and right sides and the front side of the connecting port (21), respectively; the oil guide plate (5) comprises an inclined guide surface (51) and a vertically arranged mounting surface (52); the guide surface (51) is fixedly connected to the bent portion (22), and the mounting surface (52) is fixedly connected to the rear wall of the smoke hood (2).

3. The range hood according to claim 1, characterized in that: Partition plates (6) are provided on the left and right sides of the oil guide plate (5), respectively; the peripheral walls of the partition plates (6) are fixedly connected to the oil guide plate (5) and the smoke collecting hood (2), respectively; the two partition plates (6) divide the space inside the smoke collecting hood (2) into a working area (23) for smoking and sealing areas (24) located on the left and right sides of the working area (23); the oil guide plate (5) is located inside the working area (23).

4. The range hood according to claim 3, characterized in that: It also comprises a smoke baffle (7) arranged at the front side of the smoke collecting hood (2) and a driving mechanism for driving the smoke baffle (7) to rotate, wherein the smoke baffle (7) is rotationally connected to the smoke collecting hood (2), and the driving mechanism is arranged in the sealing area (24).

5. The range hood according to claim 1, characterized in that: A groove (53) is provided at the center of the guide surface (51), the groove (53) is in a triangular cone shape, and a plurality of guide holes (511) are symmetrically arranged on the left and right sides of the groove (53).

6. The range hood according to claim 1, characterized in that: The back side of the oil net assembly (4) is provided with a claw (41), the front side of the smoke hood (2) is provided with a panel assembly (8), the smoke inlet is arranged on the panel assembly (8), and the panel assembly (8) is provided with a buckle (81) arranged corresponding to the claw (41), and the oil net assembly (4) and the panel assembly (8) are detachably connected through the cooperation of the claw (41) and the buckle (81).

7. The range hood according to claim 1, characterized in that: It also includes an oil cup (9) capable of collecting oil stains, the bottom of the smoke hood (2) is provided with a plurality of oil drain holes (25) for the oil stains to flow out, the oil net assembly (4) is provided with a plurality of mesh holes (42), the oil cup (9) is arranged below the oil drain holes (25) and the mesh holes (42), and the oil stains in the fan frame (1) and the smoke hood (2) all flow into the oil cup (9) through the oil drain holes (25) and / or the mesh holes (42).

8. The range hood according to claim 7, characterized in that: The vertical cross-section of the flow guide surface (51) is in an inverted V-shape. A plurality of upper oil guide holes (512) and lower oil guide holes (513) are respectively provided at the upper and lower ends of the flow guide surface (51). The upper oil guide holes (512) are arranged above the oil net assembly (4). The oil dirt flowing out of the upper oil guide holes (512) flows into the oil cup (9) through the mesh holes (42) of the oil net assembly (4). The lower oil guide holes (513) are arranged above the oil drain hole (25). The oil dirt flowing out of the lower oil guide holes (513) flows into the oil cup (9) through the oil drain hole (25).

9. The range hood according to any one of claims 1 to 8, characterized in that: An air inlet (31) is provided at the rear side of the fan (3), and an upper oil guide plate (32) is provided at the air inlet (31) of the fan (3). The upper oil guide plate (32) comprises a connecting plate (321) fixedly connected to the volute of the fan (3) and an inclined plate (322) arranged above the connecting plate (321), so that the oil in the fan frame (1) can flow along the inclined plate (322) to the volute of the fan (3), and then the oil flows downward along the volute of the fan (3).

10. The range hood according to claim 9, characterized in that: An oil guide box (33) is provided at the bottom of the volute of the fan (3), and oil stains on the volute of the fan (3) can flow into the oil guide box (33). An oil leakage port (331) is provided at the bottom of the oil guide box (33), and the oil leakage port (331) is arranged above the oil guide plate (5), so that the oil stains in the oil guide box (33) can flow onto the oil guide plate (5).

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