Oil guide structure and range hood

Abstract

The utility model provides an oil guide structure which comprises an upper oil guide plate, a flow guide plate, a smoke collecting cavity back plate, an oil screen and an oil receiving box, the upper oil guide plate is arranged above the oil screen, the oil receiving box is arranged below the oil screen, and the oil screen is obliquely arranged in the direction from the upper oil guide plate to the oil receiving box; a first oil passing hole communicated to the oil receiving box is formed in the lower end of the oil screen, and the oil screen is used for guiding oil dirt guided down from the upper oil guide plate to the oil receiving box; the smoke collecting cavity back plate comprises a lower oil guide face, the flow guide plate is arranged above the lower oil guide face, a second oil passing hole communicated to the oil receiving box is formed in the lower oil guide face, and the lower oil guide face is used for guiding oil dirt dripping from the flow guide plate to the oil receiving box. According to the oil guide structure in the scheme, a plurality of oil guide paths including the upper oil guide plate, the oil screen and the oil receiving box as well as the guide plate, the back plate of the smoke collecting cavity and the oil receiving box are formed, so that the problems of oil leakage, oil accumulation and the like are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to an oil guiding structure and a range hood. Background Technology

[0002] Range hoods are one of the core appliances in the kitchen. Their main function is to use a motor-driven fan to quickly expel cooking fumes, heat, and odors generated during cooking outdoors, while also reducing grease buildup and air pollution in the kitchen.

[0003] During operation, cooking fumes adhere to the casing and volute of a range hood. Over time, the condensed oil-water mixture drips down due to gravity, passing through the grease filter inlet onto the cooktop, affecting the kitchen environment. Long-term oil buildup breeds bacteria and odors, and makes cleaning the range hood difficult. Furthermore, thin or ultra-thin range hoods have poor oil-guiding properties, easily leading to oil leaks at the top or localized oil accumulation.

[0004] Therefore, an oil guiding structure needs to be installed inside the range hood. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an oil guiding structure with reasonable structure and good oil guiding effect, and a range hood using the oil guiding structure.

[0006] To solve the above-mentioned technical problems, this utility model provides an oil guiding structure, which includes an upper oil guiding plate, a guide plate, a smoke collection chamber back plate, an oil mesh, and an oil receiving box. The upper oil guiding plate is disposed above the oil mesh, and the oil receiving box is disposed below the oil mesh. The oil mesh is inclined from the upper oil guiding plate toward the oil receiving box.

[0007] The lower end of the oil mesh is provided with a first oil passage hole that connects to the oil receiving box. The oil mesh is used to guide the oil sludge that flows down from the upper oil guide plate to the oil receiving box.

[0008] The back plate of the smoke collection chamber includes a lower oil guide surface, and the guide plate is disposed above the lower oil guide surface. A second oil passage hole communicating with the oil receiving box is opened on the lower oil guide surface. The lower oil guide surface is used to guide the oil dripping from the guide plate to the oil receiving box.

[0009] Preferably, the upper oil guide plate includes a first oil guide surface, a first oil sealing edge connected to three sides of the first oil guide surface, and a first oil guide edge connected to a fourth side of the first oil guide surface. The first oil sealing edge extends upward relative to the first oil guide surface, and the first oil guide edge is disposed above the oil mesh and inclined downward toward the oil mesh.

[0010] Preferably, the upper oil guide plate is inclined downward toward the oil mesh, and the upper oil guide plate forms an inclined angle with the horizontal direction, the inclined angle being 3°-10°.

[0011] Preferably, the oil mesh is provided with multiple air inlets for connecting the outside to the smoke collection chamber, and a first flange extending upward relative to the inner wall surface of the oil mesh is provided around the edge of the air inlets.

[0012] Preferably, the vertical projection of the end of the upper oil guide plate facing the oil mesh is located in front of the air inlet.

[0013] Preferably, the guide plate includes a second oil guiding surface, a second transition edge, a third oil guiding surface, and a third transition edge, which are connected in sequence.

[0014] The second oil guiding surface and the second transition edge are bent, the third oil guiding surface and the third transition edge are bent, the second oil guiding surface is located above the third oil guiding surface, and the guide plate is inclined toward the lower oil guiding surface to guide the oil to the lower oil guiding surface.

[0015] This utility model also provides a range hood, which includes an upper housing, a smoke collection chamber, and an oil guiding structure as described in any of the above claims, wherein the oil guiding structure is disposed in the smoke collection chamber;

[0016] The upper housing includes a housing enclosure and a receiving cavity formed by the housing enclosure. A volute assembly and a volute oil cup are provided in the receiving cavity. The volute oil cup is located below the volute assembly, with its first end connected to the volute assembly and its second end connected to the back plate of the smoke collection chamber.

[0017] Preferably, the back plate of the smoke collection chamber further includes a rear oil guide surface, the second end of the volute oil cup is fixedly connected to the rear oil guide surface, the rear oil guide surface and the lower oil guide surface are fixedly connected, and the volute oil cup is used to guide the oil sludge of the volute assembly to the rear oil guide surface and / or the lower oil guide surface and flow to the oil receiving box through the second oil passage hole.

[0018] Preferably, the upper oil guide plate is disposed at the bottom end of the enclosure panel and is fixedly connected to the enclosure panel;

[0019] The upper oil guide plate is provided with a first oil sealing edge, which wraps around the bottom end of the box enclosure and is fixedly connected to the box enclosure, so that the oil stains on the inner wall of the box enclosure can flow into the upper oil guide plate.

[0020] Preferably, the guide plate is fixedly connected to the back plate of the smoke collection chamber, and the guide plate is inclined along the bottom end of the box enclosure towards the lower oil guiding surface of the back plate of the smoke collection chamber;

[0021] The guide plate is provided with a second oil guiding surface, which is located on the side of the guide plate near the housing enclosure. In the horizontal direction, the second oil guiding surface extends from the outer side of the bottom end of the housing enclosure to the bottom of the receiving cavity, so that the oil stains on the inner wall of the housing enclosure can flow onto the second oil guiding surface and / or the guide plate.

[0022] Compared to existing technologies, the oil guiding structure and range hood of this solution have at least the following beneficial effects:

[0023] 1. The oil guiding structure of this solution includes components such as an upper oil guiding plate, an oil mesh, a flow guide plate, a smoke collection chamber back plate, and an oil receiving box, which forms multiple oil guiding paths such as upper oil guiding plate-oil mesh-oil receiving box and flow guide plate-smoke collection chamber back plate-oil receiving box. This results in good oil guiding effect and avoids problems such as oil leakage and oil accumulation.

[0024] 2. The range hood in this design adopts the oil guiding structure described above. In addition, a volute oil cup is also provided and connected to the back plate of the smoke collection chamber. Finally, the oil is guided to the oil collection box, forming a third oil guiding path. This further optimizes the oil guiding structure inside the range hood and ensures the oil guiding effect. Attached Figure Description

[0025] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0026] Figure 1 A schematic diagram of the internal structure of a range hood in the rear view, provided for an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the surface structure of a range hood in the rear view direction provided for an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the upper oil guide plate of the oil guiding structure provided in an embodiment of the present utility model;

[0029] Figure 4 A schematic diagram of the oil mesh structure of the oil guiding structure provided in this embodiment of the utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 A schematic diagram of the guide plate of the oil guiding structure provided in the embodiment of this utility model;

[0032] Figure 7 A schematic diagram of the back plate of the smoke collection chamber of the oil guiding structure provided in this embodiment of the utility model;

[0033] Figure 8 A schematic diagram of the first oil guiding path of the oil guiding structure provided in an embodiment of this utility model;

[0034] Figure 9 A schematic diagram of the second oil guiding path of the oil guiding structure provided in an embodiment of this utility model;

[0035] Figure 10 A schematic diagram of the third oil guiding path of the oil guiding structure provided in this embodiment of the utility model;

[0036] Figure 11 One of the partial cross-sectional schematic diagrams of the oil guiding structure provided in the embodiment of this utility model;

[0037] Figure 12 This is a second partial cross-sectional schematic diagram of the oil guiding structure provided in an embodiment of the present utility model.

[0038] Reference numerals: 100-oil guiding structure, 101-upper oil guiding plate, 1011-first oil guiding surface, 1012-first oil sealing edge, 1013-first oil guiding edge, 102-guide plate, 1021-second oil guiding surface, 1022-second transition edge, 1023-third oil guiding surface, 1024-third transition edge, 103-smoke collection chamber back plate, 1031-lower oil guiding surface, 1032-second oil passage hole, 1033-rear oil guiding surface, 104-oil mesh, 1041-first oil passage hole, 1042-air inlet, 1043-first flange, 105-oil receiving box, 1000-range hood, 200-upper housing, 201-housing enclosure, 202-accommodating cavity, 203-volute assembly, 204-volute oil cup, 300-smoke collection chamber. Detailed Implementation

[0039] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0040] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0041] Please refer to Figures 1-12 This utility model embodiment provides an oil guiding structure 100, which includes an upper oil guiding plate 101, a guide plate 102, a smoke collection chamber back plate 103, an oil mesh 104, and an oil receiving box 105. The upper oil guiding plate 101 is disposed above the oil mesh 104, and the oil receiving box 105 is disposed below the oil mesh 104. The oil mesh 104 is inclined from the upper oil guiding plate 101 toward the oil receiving box 105. It can be understood that the oil mesh 104 is fixedly connected to other components of the range hood 1000, such as the outer shell of the range hood 1000. The upper oil guiding plate 101 can be fixedly connected to the oil mesh 104. In this case, the side of the upper oil guiding plate 101 adjacent to the oil mesh 104 is fixedly connected to the oil mesh 104. The upper oil guiding plate 101 can also be fixedly connected to other components of the range hood 1000, and it is only disposed above the oil mesh 104 and adjacent to the oil mesh 104. The oil collection box 105 is generally located at the bottom of the range hood 1000 to collect all the oil stains that fall down. The oil collection box 105 is connected to the range hood 1000 in a detachable manner, such as a drawer, so that users can easily take out or install the oil collection box 105 for cleaning.

[0042] The lower end of the oil mesh 104 is provided with a first oil passage hole 1041 that connects to the oil receiving box 105. The oil mesh 104 is used to guide the oil sludge that flows down from the upper oil guide plate 101 to the oil receiving box 105. For example, a plurality of first oil passage holes 1041 are provided at the lower end of the oil mesh 104. The position of the first oil passage hole 1041 corresponds to the position of the oil receiving box 105. When oil sludge adheres to or drips onto the oil mesh 104, it flows down along the inclined oil mesh 104 and reaches the lower end, and finally drips from the first oil passage hole 1041 onto the oil receiving box 105. In other embodiments, the lower end of the oil mesh 104 is provided with an outwardly extending baffle, and the first oil passage hole 1041 is provided on the baffle or at the connection between the main body of the oil mesh 104 and the baffle. This ensures that the oil flowing down from the oil mesh 104 can be blocked by the baffle and can only drip from the first oil passage hole 1041, thereby limiting the flow of oil and preventing it from flowing into other areas of the range hood 1000.

[0043] The back plate 103 of the smoke collection chamber includes a lower oil guiding surface 1031, and a guide plate 102 is disposed above the lower oil guiding surface 1031. A second oil passage 1032 communicating with the oil receiving box 105 is provided on the lower oil guiding surface 1031. The lower oil guiding surface 1031 is used to guide oil dripping from the guide plate 102 to the oil receiving box 105. It is understood that the guide plate 102 is disposed adjacent to the upper oil guiding plate 101. In the vertical direction, the guide plate 102 and the upper oil guiding plate 101 partially overlap or do not overlap. The oil surfaces overlap to collect oil spills from different areas. The lower oil guide surface 1031 extends towards the oil filter 104 relative to the back plate 103 of the smoke collection chamber, so that the lower oil guide surface 1031 corresponds to the lower end of the guide plate 102. That is, the oil spills on the guide plate 102 can accurately drip onto the lower oil guide surface 1031. In addition, the second oil passage hole 1032 corresponds to the position of the oil collection box 105, so that the oil spills on the lower oil guide surface 1031 can drip into the oil collection box 105 through the second oil passage hole 1032. For example, the lower oil guide surface 1031 is provided with a downwardly recessed groove, and the second oil passage hole 1032 is disposed in the groove. The groove can collect the oil spills and ensure that the oil spills can only flow out from the second oil passage hole 1032, and will not flow out from the side or other areas of the lower oil guide surface 1031, thus preventing the range hood 1000 from leaking oil.

[0044] As shown in the attached figure, the arrows indicate the direction of oil flow. In this embodiment, an oil guiding path is formed from the upper oil guide plate 101 to the oil mesh 104 to the oil collection box 105, and from the guide plate 102 to the smoke collection chamber back plate 103 to the oil collection box 105. This ensures that oil dripping from different areas can be guided into the oil collection box 105 and will not drip into other areas of the range hood 1000, thus preventing oil accumulation and other problems inside the machine.

[0045] Please refer to Figure 1 , Figure 3 , Figure 8In this embodiment, the upper oil guide plate 101 includes a first oil guide surface 1011, a first oil sealing edge 1012 connected to three sides of the first oil guide surface 1011, and a first oil guide edge 1013 connected to a fourth side of the first oil guide surface 1011. The first oil sealing edge 1012 extends upward relative to the first oil guide surface 1011, and the first oil guide edge 1013 is disposed above the oil mesh 104 and tilts downward toward the oil mesh 104. It can be understood that the first oil sealing edge 1012 is fixedly connected to the first oil guide surface 1011 and surrounds the three sides of the first oil guide surface 1011. The upward extension of the first oil sealing edge 1012 means that the first oil sealing edge 1012 is folded and connected to the first oil guide surface 1011, so that the first oil sealing edge 1012 forms a side enclosure relative to the first oil guide surface 1011, ensuring that the oil on the first oil guide surface 1011 cannot flow out from the three sides. The first oil guide edge 1013 is located on one side of the adjacent oil mesh 104. The oil from the upper oil guide plate 101 flows out from the first oil guide edge 1013 and flows to the oil mesh 104, and finally flows into the oil collection box 105 through the oil mesh 104. In reality, during the installation of the range hood 1000, due to the installer's workmanship, the actual condition of the kitchen wall, and the fixing bolts, the range hood 1000 is prone to forming a certain angle with the wall mounting surface. This angle is tilted forward towards the user. By setting the first oil sealing edge 1012, the oil cannot overflow from the direction of the first oil sealing edge 1012, thus avoiding the problem of oil leakage from the front of the range hood 1000.

[0046] Please refer to Figure 1 , Figure 3 , Figures 8-12 In this embodiment, the upper oil guide plate 101 is inclined downwards towards the oil filter 104, forming an angle α with the horizontal direction, which is 3°-10°. It is understandable that, as mentioned above, the range hood 1000 may tilt forward after installation. If the upper oil guide plate 101 is parallel to the horizontal direction, it will tilt towards the user after installation, making it easier for oil to leak from the upper oil guide plate 101, resulting in oil leakage from the front of the range hood 1000. In this embodiment, the upper oil guide plate 101 is designed to tilt downwards towards the oil filter 104. This design ensures that even if the range hood 1000 has a forward tilt, the downward tilt of the upper oil guide plate 101 will offset the forward tilt, guaranteeing that oil flows towards the oil filter 104 and further preventing the problem of oil leakage from the front of the range hood 1000. The tilt angle of the upper oil guide plate 101 can be designed according to different models of the range hood 1000. For ultra-thin range hoods 1000, the tilt angle can be smaller, but it should be at least greater than or equal to 3° to ensure that the oil can flow smoothly towards the oil filter 104.

[0047] Please refer to Figure 1 , Figures 4-5 , Figures 8-12 In this embodiment, the oil filter 104 is provided with multiple air inlets 1042 for connecting the outside to the smoke collection chamber 300. A first flange 1043 extending upward relative to the inner wall surface of the oil filter 104 is provided around the edge of the air inlets 1042. It can be understood that the air inlets 1042 connect the external environment to the smoke collection chamber 300 and serve as the channel for the range hood 1000 to extract fumes and heat. They are generally located above kitchen appliances, especially for side-suction range hoods 1000, where the oil filter 104 is located directly above the appliances. The oil on the upper oil guide plate 101 flows through the oil filter 104 to the oil collection box 105; therefore, it is necessary to prevent oil from dripping from the air inlets 1042 to the outside. The first flange 1043 folds inward around the air inlet 1042. Here, "inward" means facing the inside of the range hood 1000. Through the raised first flange 1043, the oil stains on the oil filter 104 can only flow along the edge of the first flange 1043 and cannot drip from the air inlet 1042 to the outside, thus ensuring a clean kitchen environment.

[0048] Please refer to Figures 11-12 In this embodiment, the vertical projection of the end of the upper oil guide plate 101 facing the oil mesh 104 onto the oil mesh 104 is located in front of the air inlet 1042. It is understood that the upper oil guide plate 101 is positioned above the oil mesh 104 to allow oil dripping from the upper oil guide plate 101 to fall onto the oil mesh 104 and be guided along the oil mesh 104 into the oil collection box 105. In other words, the upper oil guide plate 101 partially overlaps with the oil mesh 104 in the vertical direction. The oil mesh 104 has an air inlet 1042 that connects to the outside of the range hood 1000. This ensures that oil dripping from the upper oil guide plate 101 does not drip into the air inlet 1042. Specifically, in this embodiment, the end of the upper oil guide plate 101 adjacent to the oil mesh 104 is also the part that overlaps with the oil mesh 104 in the vertical direction. The projection of this end on the oil mesh 104 is located in front of the air inlet 1042. In this way, the oil dripping from this end will only drip into other areas of the oil mesh 104, and will not drip directly into the air inlet 1042, thus ensuring the cleanliness of the kitchen environment.

[0049] Please refer to Figure 1 , Figure 6 , Figures 9-10 In this embodiment, the guide plate 102 includes a second oil guiding surface 1021, a second transition edge 1022, a third oil guiding surface 1023 and a third transition edge 1024, which are connected in sequence.

[0050] The second oil guiding surface 1021 and the second transition edge 1022 are bent, as are the third oil guiding surface 1023 and the third transition edge 1024. The second oil guiding surface 1021 is located above the third oil guiding surface 1023. The guide plate 102 is inclined towards the lower oil guiding surface 1031 to guide oil sludge to the lower oil guiding surface 1031. It is understood that the guide plate 102 is integrally molded, forming the second oil guiding surface 1021, the second transition edge 1022, the third oil guiding surface 1023, and the third transition edge 1024 by bending. A folding tangent is formed at the connection between the second oil guiding surface 1021 and the second transition edge 1022, and a folding tangent is also formed at the connection between the third oil guiding surface 1023 and the third transition edge 1024. The second oil guiding surface 1021 is located above the third oil guiding surface 1023, and the guide plate 102 as a whole is inclined towards the lower oil guiding surface 1031. When oil drips onto the second oil guiding surface 1021, the oil will flow down along the second oil guiding surface 1021. Most of the oil will flow along the tangent of the second oil guiding surface 1021 and the second transition edge 1022 and drip onto the lower oil guiding surface 1031. A small portion of the oil will flow across the second transition edge 1022 to the third oil guiding surface 1023. The oil here will be guided at the tangent of the third oil guiding surface 1023 and the third transition edge 1024, and then drip onto the lower oil guiding surface 1031, eventually flowing into the oil receiving box 105. By setting the second oil guiding surface 1021, the second transition edge 1022, the third oil guiding surface 1023, and the third transition edge 1024, the oil on the guide plate 102 can be directed. When the amount of oil is small, the oil will basically flow down to the oil guiding surface 1031 along the tangent of the second oil guiding surface 1021 and the second transition edge 1022. When the amount of oil is large, some oil can cross the second transition edge 1022, but it will also be guided at the tangent of the third oil guiding surface 1023 and the third transition edge 1024. The guide plate 102 can control the direction of oil flow in a directional manner, and there will be no problem of oil accumulation or oil dripping into other areas inside the machine.

[0051] Please refer to Figures 1-12 This utility model also provides a range hood 1000, which includes an upper housing 200, a smoke collection chamber 300, and an oil guiding structure 100 as described above. The oil guiding structure 100 is disposed in the smoke collection chamber 300. It can be understood that the upper housing 200 is fixedly connected to the smoke collection chamber 300, and the upper housing 200 is also connected to the flue and exhaust pipe, etc. The smoke collection chamber 300 is close to the kitchen utensils and is used to gather the oil fumes and suck them into the range hood 1000, and then separate the oil and fumes.

[0052] The upper housing 200 includes a housing enclosure 201 and a receiving cavity 202 formed by the housing enclosure 201. The receiving cavity 202 is provided with a volute assembly 203 and a volute oil cup 204. The volute oil cup 204 is located below the volute assembly 203, and its first end is connected to the volute assembly 203, and its second end is connected to the smoke collection chamber back plate 103. It can be understood that the volute assembly 203 includes a spiral outer shell similar to a snail shell and an impeller fixed inside. When the motor drives the impeller to rotate at high speed, a centrifugal force is formed inside the volute assembly 203, thereby creating a negative pressure in the central area. The negative pressure will draw the oil fumes in the kitchen into the range hood 1000. Under the action of the high-speed rotating impeller, the oil particles of the drawn-in oil fumes adhere to the inner wall of the volute assembly 203 due to centrifugal force or temperature changes, and then flow to the volute oil cup 204 below, thereby assisting in the separation of oil fumes. In this embodiment, the second end of the volute oil cup 204 is connected to the back plate 103 of the smoke collection chamber. The oil flowing down from the volute assembly 203 flows through the guide of the volute oil cup 204 to the back plate 103 of the smoke collection chamber, and then flows through the lower oil guide plate to the oil receiving box 105.

[0053] Please refer to Figures 1-2 , Figures 7-10 In this embodiment, the back plate 103 of the smoke collection chamber also includes a rear oil guiding surface 1033. The second end of the volute oil cup 204 is fixedly connected to the rear oil guiding surface 1033. The rear oil guiding surface 1033 and the lower oil guiding surface 1031 are fixedly connected. The volute oil cup 204 is used to guide the oil from the volute assembly 203 to the rear oil guiding surface 1033 and / or the lower oil guiding surface 1031 and flow to the oil receiving box 105 through the second oil passage 1032. Guided by the volute oil cup 204, the oil separated from the volute assembly 203 can flow along the rear oil guiding surface 1033 and the lower oil guiding surface 1031 to the oil receiving box 105, forming a third oil guiding path for the range hood 1000, thereby ensuring that oil does not accumulate inside the range hood 1000 or that oil flows to other areas.

[0054] Please refer to Figure 1 , Figure 3 , Figure 8 In this embodiment, the upper oil guide plate 101 is disposed at the bottom end of the box enclosure 201 and is fixedly connected to the box enclosure 201.

[0055] The upper oil guide plate 101 is provided with a first oil sealing edge 1012, which wraps around the bottom end of the enclosure panel 201 and is fixedly connected to the enclosure panel 201, allowing oil stains on the inner wall of the enclosure panel 201 to flow into the upper oil guide plate 101. It is understood that the upper enclosure 200 is generally a cuboid with a rectangular bottom section. The upper oil guide plate 101 is located at the bottom end of the upper enclosure 200 and is on the side closest to the user. The upper oil guide plate 101 wraps around the front end of the bottom end of the enclosure panel 201 with the first oil sealing edges 1012 on three sides. Here, the front end refers to the side of the range hood 1000 closest to the user after installation. Specifically, the side of the enclosure panel 201 closest to the user is defined as the front, the side closest to the range hood 1000 and the wall mounting surface is defined as the back, and the two sides are defined as the sides. At this time, the upper oil guide plate 101 covers the front of the enclosure panel 201, and all or part of the two sides, that is, the oil stains flowing down from the front and two sides of the enclosure panel 201 will be received by the upper oil guide plate 101. After being guided by the upper oil guide plate 101, they flow to the oil collection box 105, thus forming the first oil guiding path.

[0056] Please refer to Figure 1 , Figure 6 , Figure 9 In this embodiment, the guide plate 102 is fixedly connected to the back plate 103 of the smoke collection chamber, and the guide plate 102 is inclined along the bottom end of the box enclosure 201 toward the lower oil guide surface 1031 of the back plate 103 of the smoke collection chamber.

[0057] The guide plate 102 is provided with a second oil guiding surface 1021. In the horizontal direction, the second oil guiding surface 1021 extends from the outer side of the bottom end of the housing enclosure 201 to below the receiving cavity 202, so that oil stains on the inner wall of the housing enclosure 201 can flow onto the second oil guiding surface 1021 and / or the guide plate 102. It can be understood that the guide plate 102 is arranged adjacent to the upper oil guiding plate 101 and extends from the upper oil guiding plate 101 to the back plate 103 of the smoke collection chamber. When the first oil sealing edge 1012 of the upper oil guiding plate 101 covers part of the side of the housing enclosure 201, the guide plate 102 is arranged adjacent to the upper oil guiding plate 101 and can receive oil stains flowing down from the remaining side of the housing enclosure 201. Specifically, the guide plate 102 is disposed inside the smoke collection chamber 300. In the horizontal direction, the second oil guiding surface 1021 is close to the bottom end of the upper box 200 and extends from the outer side of the side of the box enclosure 201 to the bottom of the receiving chamber 202. That is, the second oil guiding surface 1021 crosses the box enclosure 201 below the box enclosure 201, so that the oil stains from the side of the box enclosure 201 can drip directly onto the second oil guiding surface 1021, thereby cooperating with the upper oil guiding plate 101 to ensure that the oil stains on the box enclosure 201 can be received and guided to the oil receiving box 105.

[0058] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An oil-guiding structure, characterized in that, It includes an upper oil guide plate, a baffle plate, a smoke collection chamber back plate, an oil mesh, and an oil receiving box. The upper oil guide plate is located above the oil mesh, and the oil receiving box is located below the oil mesh. The oil mesh is inclined from the upper oil guide plate toward the oil receiving box. The lower end of the oil mesh is provided with a first oil passage hole that connects to the oil receiving box. The oil mesh is used to guide the oil sludge that flows down from the upper oil guide plate to the oil receiving box. The back plate of the smoke collection chamber includes a lower oil guide surface, and the guide plate is disposed above the lower oil guide surface. A second oil passage hole communicating with the oil receiving box is opened on the lower oil guide surface. The lower oil guide surface is used to guide the oil dripping from the guide plate to the oil receiving box.

2. The oil guiding structure as described in claim 1, characterized in that, The upper oil guide plate includes a first oil guide surface, a first oil sealing edge connected to three sides of the first oil guide surface, and a first oil guide edge connected to a fourth side of the first oil guide surface. The first oil sealing edge extends upward relative to the first oil guide surface, and the first oil guide edge is disposed above the oil mesh and tilts downward toward the oil mesh.

3. The oil guiding structure as described in claim 1, characterized in that, The upper oil guide plate is inclined downward toward the oil mesh, and the upper oil guide plate forms an inclined angle with the horizontal direction, which is 3°-10°.

4. The oil guiding structure as described in claim 1, characterized in that, The oil mesh is provided with multiple air inlets for connecting the outside to the smoke collection chamber, and a first flange extending upward relative to the inner wall surface of the oil mesh is provided around the edge of the air inlets.

5. The oil guiding structure as described in claim 4, characterized in that, The vertical projection of the end of the upper oil guide plate facing the oil mesh is located in front of the air inlet.

6. The oil guiding structure as described in claim 1, characterized in that, The guide plate includes a second oil guiding surface, a second transition edge, a third oil guiding surface, and a third transition edge, which are connected in sequence. The second oil guiding surface and the second transition edge are bent, the third oil guiding surface and the third transition edge are bent, the second oil guiding surface is located above the third oil guiding surface, and the guide plate is inclined toward the lower oil guiding surface to guide the oil to the lower oil guiding surface.

7. A range hood, characterized in that, It includes an upper housing, a smoke collection chamber, and an oil guiding structure as described in any one of claims 1-6, wherein the oil guiding structure is disposed within the smoke collection chamber; The upper housing includes a housing enclosure and a receiving cavity formed by the housing enclosure. A volute assembly and a volute oil cup are provided in the receiving cavity. The volute oil cup is located below the volute assembly, with its first end connected to the volute assembly and its second end connected to the back plate of the smoke collection chamber.

8. The range hood as described in claim 7, characterized in that, The back plate of the smoke collection chamber also includes a rear oil guide surface. The second end of the volute oil cup is fixedly connected to the rear oil guide surface. The rear oil guide surface and the lower oil guide surface are fixedly connected. The volute oil cup is used to guide the oil sludge of the volute assembly to the rear oil guide surface and / or the lower oil guide surface and flow to the oil receiving box through the second oil passage hole.

9. The range hood as described in claim 7, characterized in that, The upper oil guide plate is disposed at the bottom end of the enclosure panel and is fixedly connected to the enclosure panel. The upper oil guide plate is provided with a first oil sealing edge, which wraps around the bottom end of the box enclosure and is fixedly connected to the box enclosure, so that the oil stains on the inner wall of the box enclosure can flow into the upper oil guide plate.

10. The range hood as described in claim 7, characterized in that, The guide plate is fixedly connected to the back plate of the smoke collection chamber, and the guide plate is inclined along the bottom end of the box enclosure towards the lower oil guiding surface of the back plate of the smoke collection chamber; The guide plate is provided with a second oil guiding surface, which is located on the side of the guide plate near the housing enclosure. In the horizontal direction, the second oil guiding surface extends from the outer side of the bottom end of the housing enclosure to the bottom of the receiving cavity, so that the oil stains on the inner wall of the housing enclosure can flow onto the second oil guiding surface and / or the guide plate.

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