Oil guide fan cover and range hood

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly relates to an oil guide fan cover and a range hood. More than two groups of oil gathering assemblies are arranged on the oil guide surface, so that the length of the flow guide groove is shortened, oil drops formed on the surface of the flow guide groove can quickly slide into the oil groove through the oil outlet part, wall-hanging oil stains formed by excessive staying of the oil stains on the surface of the flow guide groove are avoided, and the oil guide surface is easier to clean. In addition, oil receiving pieces are arranged to convey oil drops dripping from the oil outlet parts of the multiple sets of flow guide grooves, the inner wall of the oil groove can be continuously scoured by means of the gravity of the oil drops and impact formed in the falling process, and the technical problems that at present, the oil stain dripping speed of the inner wall of the oil guide groove is low, and the oil box oil drop collecting efficiency is low are solved. The oil guide surface and the oil groove are obliquely arranged in parallel, and the included angle between the direction of the oil outlet part of the flow guide groove and the oblique downward direction of the oil groove is properly adjusted, so that not only is gravity fully utilized as main oil guide power, but also the oil guide requirement of large lampblack can be met.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and specifically relates to an oil guide hood and a range hood. Background Art

[0002] A range hood is an electrical appliance installed above a kitchen stove, primarily used to absorb and exhaust cooking fumes. During operation, the fumes, under the negative pressure of the fan, enter the range hood through the air collection hood for collection and treatment, thereby ensuring air quality in the kitchen. However, as the fumes pass through the range hood, they condense on the hood's surface due to factors such as a drop in temperature, forming oil droplets. When these oil droplets accumulate to a certain level, they drip under the influence of gravity onto the stovetop or kitchen utensils below, creating unsanitary and unsightly oil stains and accumulated oil drips.

[0003] To address this technical issue, current range hoods typically have their hoods tilted, with multiple sets of longitudinally integrated oil guide grooves running from top to bottom, forming an oil-guided hood. At the bottom of the oil guide grooves, an oil collection box is installed. This allows oil droplets condensing on the surface of the hood to slide along the oil guide grooves under the action of gravity and eventually drip into the oil collection box, completing the collection of the oil droplets. In theory, this not only effectively reduces the occurrence of oil droplets dripping directly onto the stovetop or kitchenware, improving the hygiene and aesthetics of the kitchen, but also reduces the burden of cleaning the hood, extending the life of the equipment, and reducing the safety hazards caused by grease accumulation.

[0004] However, the applicant discovered that while the longitudinally integrated oil guide grooves can fully collect oil droplets in the direction of oil smoke escape, in actual use, the dripping process of oil droplets in the oil guide grooves is not controlled. Due to the small amount of oil droplets, many oil droplets will adhere to the surface of the oil guide grooves during flow, resulting in a low amount of oil dripping into the oil collection box. Moreover, with long-term use, these oil stains will gradually accumulate, making cleaning extremely difficult. Utility Model Content

[0005] To solve the above technical problems, the present application provides an oil guide hood and a range hood, which are specifically achieved through the following technical solutions:

[0006] An oil guide hood comprises an oil guide surface arranged on the lower surface of the oil guide hood, and at least two groups of oil collecting assemblies arranged on the oil guide surface; the oil collecting assembly comprises a guide groove group and an oil receiving piece; the guide groove group comprises a plurality of guide grooves, and the guide grooves are provided with oil outlets; the oil receiving piece comprises an inclined oil groove, and the oil groove is used to receive oil droplets from the oil outlet of the guide grooves in the guide groove group and transmit them to the discharge end of the oil receiving piece.

[0007] Preferably, in the same guide groove group, the guide grooves are arranged in an array along the width direction of the oil guide surface.

[0008] In this application, the width direction refers to the axial direction in which a user moves closer to or further away from the oil-deflecting hood during cooking. Typically, this direction corresponds to the smaller side of the oil-deflecting surface, i.e., the wide side of the rectangle. However, in certain circumstances, such as single-stove range hoods, this direction corresponds to the larger side of the oil-deflecting surface, i.e., the long side of the rectangle.

[0009] It should be understood that the so-called array setting does not require that each guide groove in the guide groove group has exactly the same angle or even structure formed on the oil guide surface. As long as the oil droplets from the oil outlet of several guide grooves in the guide groove group can drip into the same oil groove to achieve the research and development purpose.

[0010] Preferably, the height difference between the oil outlet of the guide groove and the lowest point of the oil tank of the oil receiving member is between 1 and 8 cm. Further preferably, the height difference between the oil outlet of the guide groove and the lowest point of the oil tank of the oil receiving member is between 2 and 5 cm.

[0011] Preferably, the oil guide surface is arranged parallel to the oil groove, and the angle between the oil outlet direction of the guide groove and the downwardly inclined direction of the oil groove is 5 to 85 degrees. Further preferably, the angle between the oil outlet direction of the guide groove and the downwardly inclined direction of the oil groove is 30 to 60 degrees.

[0012] Preferably, the oil guide surface is arranged horizontally; and the guide groove is arranged to protrude downward from the oil guide surface along the direction of the oil outlet of the guide groove.

[0013] Preferably, the oil guide hood further includes an oil box for receiving oil droplets flowing out of the discharge end of the oil receiving piece.

[0014] Preferably, the oil guide hood further includes a connecting surface connected to the oil guide surface, and the connecting surface is connected to the discharge end of the oil receiving piece.

[0015] Preferably, the length of the guide groove is between 2 and 10 cm. More preferably, the length of the guide groove is between 4 and 7 cm.

[0016] Preferably, the oil receiving member includes a mounting portion slidably connected to the oil guide surface.

[0017] Preferably, the oil receiving part is an integrated C-shaped part, the upper end of the C-shaped part forms the mounting portion, and the internal groove of the lower end of the C-shaped part forms the oil groove.

[0018] A range hood comprising the oil guide hood described in any one of the above items.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] The present application shortens the length of the guide groove by arranging more than two groups of oil collecting components on the oil guide surface. The oil droplets formed on the surface of the guide groove can quickly slide through the oil outlet part into the oil groove, avoiding the formation of wall-hanging oil stains caused by excessive oil stay on the surface of the guide groove, and the oil guide surface is easier to clean.

[0021] The present application arranges an oil receiving piece to transmit the oil droplets dripping from the oil outlet of multiple groups of guide grooves. It can use the gravity of the oil droplets themselves and the impact formed during the falling process to continuously flush the inner wall of the oil groove, thereby solving the current technical problems of slow dripping speed of oil stains on the inner wall of the oil guide groove and low efficiency of collecting oil droplets in the oil box.

[0022] By designing the horizontal height difference between the oil outlet of the guide groove and the lowest point of the oil tank of the oil receiving part, the present application can effectively utilize the potential energy difference in the oil droplet falling process, regulate the flow speed of the oil droplets in the oil tank, and reduce the residence time of the oil droplets on the inner wall of the oil tank, thereby improving the collection efficiency of the oil droplets and reducing the difficulty and frequency of daily maintenance of the oil receiving part.

[0023] By arranging the oil guide surface parallel to the oil trough and adjusting the angle between the oil outlet and the downward tilt of the trough, this application not only fully utilizes gravity as the primary driving force for the oil guide, but also allows for the number of guide grooves to be increased to accommodate the oil guide needs of large oil smoke. This design not only simplifies the structural design of the oil guide groove itself, but also reduces the difficulty of cleaning irregularities on the oil guide surface, making cleaning more convenient.

[0024] The design of the connecting surface of the present application ensures that the oil droplets collected through the guide groove can be smoothly transferred from the oil outlet of the guide groove to the oil box, reducing the risk of oil droplets suspended in the air or splashing around, and improving the safety of the system.

[0025] The present application provides an oil receiving part as an integral C-shaped part that is slidably connected to the oil guide surface. On the one hand, it is convenient to disassemble and clean, and on the other hand, it has a simple structure and can be formed in one piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To clearly introduce the embodiments, the following briefly introduces the accompanying drawings:

[0027] Figure 1 This is a structural diagram of the oil-air guide cover in Example 1 of the present application;

[0028] Figure 2 This is a structural diagram of the oil receiving member of Example 1 of the present application;

[0029] The figures are numbered as follows: 100, oil guide surface, 200, oil collecting assembly, 210, guide groove, 211, oil outlet, 220, oil receiving part, 221, oil tank, 222, discharge end, 223, installation part, 300, oil box, 400, connection surface, 500, air duct. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Based on these descriptions, a person skilled in the art will be able to implement the present invention. Furthermore, the embodiments of the present invention described below generally represent only a portion of the present invention, rather than all of the embodiments. Therefore, all other embodiments derived by a person skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0031] Example 1

[0032] This embodiment discloses an oil-conducting air hood, which includes:

[0033] The oil guide surface 100 is provided on the lower surface of the oil guide hood. Usually, the oil guide surface 100 is installed directly above the stove to collect the oil smoke and condensed water vapor generated during the cooking process.

[0034] The oil collection assembly 200, mounted on the oil guide surface 100, is the core component that collects oil fumes and other substances. It specifically includes a guide trough group and an oil receiving member 220. The guide trough group includes nine groups of guide troughs 210 arranged in an array along the width of the oil guide surface 100. These guide troughs 210 guide oil unidirectionally, forming an oil outlet 211. The oil receiving member 220 includes an inclined oil trough 221, which collects oil droplets from the oil outlet 211 of all guide troughs in the group and transfers them to the oil receiving member's discharge end 222.

[0035] To simplify the structural design of the guide groove 210, in this embodiment, the oil guide surface 100 is arranged parallel to the inclined oil groove 221. Specifically, the oil guide surface 100 and the oil groove 221 are arranged to tilt downward, away from the user. Furthermore, the oil guide groove 210 is a groove formed on the oil guide surface 100, and the angle between the oil outlet 211 of the oil guide groove 210 and the downward tilt of the oil groove 221 is 80°. Of course, it is understood that in other embodiments, this angle can also be selected from a range of 5 to 85°. The tilted design of the oil guide surface 100 and the oil guide groove 210 allows the oil guide groove 210 to guide oil by gravity, eliminating the need for special structural design and reducing the difficulty of cleaning irregularities on the surface of the oil guide surface 100. Furthermore, the tilted guide groove 210 allows for more diversion channels to be arranged on the same oil guide surface 100, thereby increasing the area for collecting oil droplets and improving the efficiency of oil droplet collection. In this way, even if a large amount of oil smoke is generated during the cooking process, it can ensure that the oil droplets are effectively guided to the collection device, reducing the spread of oil smoke in the kitchen and improving the overall oil conduction performance.

[0036] The oil collection assemblies 200 of this embodiment are arranged in nine arrays along the length of the oil guide surface 100. To minimize the residence time of oil stains within the oil guide grooves 210 and oil troughs 221, the guide grooves 210 are designed to be between 2 and 10 cm long. The height difference between the oil outlet 211 of the guide groove (i.e., the surface of the oil guide surface 100) and the lowest point of the oil trough 221 of the oil receiving member is 3 cm. Of course, in other embodiments, this height difference can be set between 1 and 8 cm. By adjusting the length of the guide grooves 210, controlling the weight of oil droplets, and designing the height difference between the oil outlet 211 of the guide groove and the lowest point of the oil trough 221 of the oil receiving member, the potential energy difference during the falling of an oil droplet of a specific weight can be effectively utilized to regulate the flow velocity of the oil droplet within the oil trough 221, reducing the residence time of the oil droplet on the inner wall of the oil trough 221, thereby improving the efficiency of oil droplet collection and reducing the difficulty and frequency of routine maintenance of the oil receiving member.

[0037] To facilitate cleaning of the oil-guiding surface 100, the oil-receiving member 220 in this embodiment is a single, C-shaped member. The mounting portion 223 is formed at the upper end of the C-shaped member, and the oil groove 221 is formed within a recessed portion at the lower end of the C-shaped member. The mounting portion 223 is slidably connected to the oil-guiding surface 100. Therefore, during maintenance and cleaning, the oil-receiving member 220 only needs to be slid and removed, and then the oil-guiding surface 100 and the oil-receiving member 220 can be cleaned separately, making cleaning more convenient.

[0038] The oil box 300 is used to receive oil droplets flowing out of the oil receiving member's discharge end 222. To ensure that the oil droplets collected by the guide groove 210 can be smoothly transferred from the guide groove's oil outlet 211 to the oil box 300, thereby reducing the risk of oil droplets becoming suspended in the air or splashing, and improving system safety, this embodiment also provides a connecting surface 400. Specifically, the connecting surface 400 is an arc-shaped plate that is connected to the end of the inclined oil guide surface 100 that is away from the user. The connecting surface 400 is also connected to the oil receiving member's discharge end 222.

[0039] During use, the oil guide hood disclosed in this embodiment collects cooking fumes dispersed above the stovetop via 81 oil guide grooves 210 distributed across the oil guide surface 100. Specifically, when high-temperature fume droplets come into contact with the low-temperature oil guide grooves 210, they form oil droplets. The oil guide grooves 210, due to their oleophobic material, can, under the action of their own gravity, drive the oil droplets along the oil guide grooves 210 to the oil guide groove outlet 211, and then drip into the oil groove 221 of the oil receiving member. Within the same oil collection assembly 200, oil droplets dripping from different locations will continuously flush the inner wall of the oil groove 221, driving the oil droplets to flow rapidly to the oil groove outlet 222. Finally, based on the connection between the connecting surface 400 and the outlet 222, when the oil droplets at the outlet 222 accumulate to a certain level, the oil will flow along the connecting surface 400 into the oil box 300, completing the collection of the oil fume.

[0040] In addition, this embodiment also discloses a range hood including the oil guide hood, wherein the air duct 500 of the range hood is arranged on the oil guide hood. The other components of the range hood are of conventional design and will not be described in detail in this section.

[0041] Example 2

[0042] The difference between this embodiment and the oil guide hood disclosed in embodiment 1 is that: in this embodiment, the oil guide surface 100 is set horizontally. In this situation, in order to realize the oil guiding function of the guide groove 210, the guide groove 210 is set to protrude downward along the direction of the oil outlet portion 211 of the guide groove. Furthermore, in this embodiment, the guide grooves 210 of adjacent groups of oil collecting assemblies 200 can be connected to each other on the side away from the oil outlet portion 211. Accordingly, the oil receiving parts 220 that match the guide grooves 210 will be symmetrically distributed on both sides of the connected oil guide grooves 210. In addition, this embodiment also discloses a range hood including the above-mentioned oil guide hood. The other components of the range hood are of conventional design and will not be described in detail in this section.

Claims

1. An oil guide hood, characterized in that: The invention comprises an oil guide surface (100) arranged on the lower surface of an oil guide air hood, and at least two groups of oil collecting assemblies (200) arranged on the oil guide surface (100); the oil collecting assembly (200) comprises a guide groove group and an oil receiving piece (220); the guide groove group comprises a plurality of guide grooves (210), and the guide grooves (210) are provided with oil outlets (211); the oil receiving piece (220) comprises an oil groove (221) arranged obliquely, and the oil groove (221) is used to receive oil droplets from the oil outlets (211) of the guide grooves in the guide groove group and transmit them to the discharge end (222) of the oil receiving piece.

2. The oil guide cover according to claim 1, characterized in that: In the same guide groove group, the guide grooves (210) are arranged in an array along the width direction of the oil guide surface (100).

3. The oil guide cover according to claim 1, characterized in that: The horizontal height difference between the oil outlet portion (211) of the guide groove and the lowest point of the oil groove (221) of the oil receiving member is between 1 and 8 cm.

4. The oil guide cover according to claim 3, characterized in that: The horizontal height difference between the oil outlet portion (211) of the guide groove and the lowest point of the oil groove (221) of the oil receiving member is between 2 and 5 cm.

5. The oil guide cover according to claim 1, characterized in that: The oil guide surface (100) is arranged parallel to the oil groove (221), and the angle between the direction of the oil outlet portion (211) of the guide groove and the downward inclined direction of the oil groove (221) is 5 to 85 degrees.

6. The oil guide cover according to claim 5, characterized in that: The angle between the direction of the oil outlet portion (211) of the guide groove and the downwardly inclined direction of the oil groove (221) is 30 to 60 degrees.

7. The oil guide cover according to claim 1, characterized in that: The oil guide surface (100) is arranged horizontally; and the guide groove (210) is arranged to be inclined downward and protrude from the oil guide surface (100) along the direction of the guide groove oil outlet portion (211).

8. The oil guide cover according to claim 1, characterized in that: The oil guide hood further comprises an oil box (300) for receiving oil drops flowing out of the oil discharge end (222) of the oil receiving member.

9. The oil guide cover according to claim 8, characterized in that: The oil guide hood further comprises a connecting surface (400) connected to the oil guide surface (100), and the connecting surface (400) is connected to the discharge end (222) of the oil receiving member.

10. The oil guide cover according to any one of claims 1 to 4, characterized in that: The length of the guide groove (210) is between 2 and 10 cm.

11. The oil guide cover according to claim 10, characterized in that: The length of the guide groove (210) is between 4 and 7 cm.

12. The oil guide cover according to claim 1, characterized in that: The oil receiving member (220) includes a mounting portion (223) slidably connected to the oil guide surface (100).

13. The oil guide cover according to claim 12, characterized in that: The oil receiving member (220) is an integrated C-shaped member, the upper end of the C-shaped member forms the mounting portion (223), and the inner groove of the lower end of the C-shaped member forms the oil groove (221).

14. A range hood, characterized in that: The invention comprises the oil guide hood according to any one of claims 1 to 13.

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