Flat three-layer high-efficiency oil fume separator

Abstract

A kind of flat three-layer high-efficiency oil fume separator, comprising: flat plate front side oil fume net, rear oil fume net and intermediate layer oil fume net;The intermediate layer oil fume net is clamped between front side oil fume net and rear oil fume net, it is equipped with several interval arrangement central smoke baffle, central smoke baffle inserts and is arranged in the middle part of air inlet groove;The rear end of central smoke baffle is equipped with arc-shaped guide part extending towards two sides, the air outlet smoke baffle is in the middle part of adjacent two central smoke baffles and is in the form of V structure;The air inlet smoke baffle, central smoke baffle and air outlet smoke baffle form mutually connected oil fume adsorption channel.The utility model, by front side, rear and intermediate layer three-layer oil fume net is closely combined with flat plate structure, while realizing three-layer filtration, overall thickness is effectively controlled, avoid the problem of traditional volume hypertrophy caused by additional filter screen, meet the design trend of kitchen electrical equipment light weight, miniaturization, it is convenient to install and save space.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a flat three-layer high-efficiency oil fume separator. Background Technology

[0002] Typical oil fume separators consist of an outer and an inner oil filter plate, both with staggered smoke-blocking strips forming an S-shaped oil fume duct. Current products generally use two staggered smoke-blocking strips to create this duct, resulting in ineffective oil fume separation. To improve separation, some products have attempted to add an extra filter layer to the double-layer structure. However, this significantly increases the overall thickness of the oil fume separator, leading to increased size and weight. This not only occupies more installation space but also contradicts the current trend of lightweight and miniaturized home appliances, resulting in lower market competitiveness. Therefore, further improvements are needed. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a flat three-layer high-efficiency oil fume separator.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a flat three-layer high-efficiency oil fume separator, including: a flat plate-shaped front oil fume mesh, a rear oil fume mesh and a middle layer oil fume mesh; The front fume filter has several spaced-apart air inlet baffles, with air inlet slots formed between adjacent air inlet baffles; the rear fume filter has several spaced-apart air outlet baffles, with air outlet slots formed between adjacent air outlet baffles. The intermediate layer of fume mesh is sandwiched between the front fume mesh and the rear fume mesh, and it is provided with several spaced-apart central smoke baffles. The central smoke baffles are inserted into and blocked in the middle of the air inlet slot. The rear end of the central smoke baffle is provided with an arc-shaped guide extending to both sides. The exhaust smoke baffle has a "V" shape and is located in the middle of two adjacent central smoke baffles. The inlet smoke baffle, the central smoke baffle, and the exhaust smoke baffle form an interconnected oil fume adsorption channel.

[0005] Optionally, the inlet smoke deflector, the middle smoke deflector, and the outlet smoke deflector are all vertically extending elongated structures.

[0006] Optionally, the front fume mesh, the middle fume mesh, and the rear fume mesh are each provided with a horizontally extending central connecting wall, which is used to connect the inlet smoke baffle, the middle smoke baffle, or the outlet smoke baffle, respectively.

[0007] Optionally, the middle smoke-blocking strip and its end are provided with a first protrusion that protrudes toward the oil fume adsorption channel.

[0008] Optionally, the end of the air outlet baffle strip is provided with a second protrusion that protrudes toward the oil fume adsorption channel.

[0009] Optionally, the top of the front fume filter is provided with a magnetic suction element; the bottom of the front fume filter and the bottom of the middle layer fume filter are provided with a first slot and a first card part that are compatible with each other.

[0010] Optionally, an elastic top bead is provided above the front fume filter, and a limiting hole is provided above the rear fume filter for the elastic top bead to be inserted.

[0011] Optionally, a second clip and a second slot are provided below the front fume filter and below the rear fume filter, respectively.

[0012] Optionally, the number of air inlet slots and air outlet slots are equal and they are set in a one-to-one correspondence.

[0013] Optionally, the front fume filter, the rear fume filter, and the middle fume filter are made of aluminum alloy.

[0014] The beneficial effects of this utility model are: 1. Compact structure and significant advantages in lightness and thinness: By tightly combining the front, rear and middle layers of oil fume mesh in a flat plate structure, the overall thickness is effectively controlled while achieving three-layer filtration. This avoids the bulky size problem caused by adding filters in the traditional way, which is in line with the design trend of lightweight and miniaturized kitchen appliances, making it easy to install and saving space.

[0015] 2. Optimized oil fume adsorption path for high separation efficiency: The design of the central smoke baffle inserted into the front air inlet slot, combined with the arc-shaped guide at the rear and the rear "V"-shaped air outlet smoke baffle, forms a multi-stage, winding, and interconnected oil fume adsorption channel. As the oil fumes pass through, they undergo multiple collisions, deflections, and adsorption processes, resulting in the thorough trapping of grease particles and significantly improved separation efficiency.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. 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: Figure 1 This is a schematic diagram of the structure of the flat three-layer high-efficiency oil fume separator of this utility model; Figure 2 for Figure 1 Exploded view of a medium-flat three-layer high-efficiency oil fume separator; Figure 3 for Figure 1Another exploded view of a medium-flat three-layer high-efficiency oil fume separator; Figure 4 for Figure 1 Cross-sectional view of a medium-flat, three-layer high-efficiency oil fume separator; Figure 5 for Figure 1 A cross-sectional view of the medium-flat three-layer high-efficiency oil fume separator at the magnetic suction component and the second card section.

[0018] Explanation of key component symbols: 10. Front fume filter; 11. Inlet smoke deflector; 12. Inlet slot; 13. Magnetic attachment; 14. First slot; 15. Elastic top bead; 16. Second locking part; 20. Rear fume filter; 21. Outlet smoke deflector; 22. Outlet slot; 23. Second protrusion; 24. Limiting hole; 25. Second slot; 30. Middle layer fume filter; 31. Middle smoke deflector; 32. Arc-shaped guide part; 33. First protrusion; 34. First locking part; 40. Fume adsorption channel; 50. Middle connecting wall. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Example Reference Figures 1 to 5 The present invention proposes a flat three-layer high-efficiency oil fume separator, comprising: a flat plate-shaped front oil fume mesh 10, a rear oil fume mesh 20, and a middle layer oil fume mesh 30. The front fume filter 10 is provided with several spaced-apart air inlet baffles 11, and air inlet grooves 12 are formed between adjacent air inlet baffles 11; the rear fume filter 20 is provided with several spaced-apart air outlet baffles 21, and air outlet grooves 22 are formed between adjacent air outlet baffles 21. The intermediate layer fume mesh 30 is sandwiched between the front fume mesh 10 and the rear fume mesh 20, and it is provided with several spaced-apart central smoke baffles 31, which are inserted into and blocked in the middle of the air inlet slot 12. The rear end of the middle smoke baffle 31 is provided with an arc-shaped guide 32 extending to both sides. The exhaust smoke baffle 21 has a "V" shaped structure and is located in the middle of two adjacent middle smoke baffles 31. The inlet smoke baffle 11, the middle smoke baffle 31 and the exhaust smoke baffle 21 form an interconnected oil fume adsorption channel 40.

[0024] The beneficial effects of this utility model are: 1. Compact structure and significant advantages in lightness and thinness: By tightly combining the front, rear and middle layers of oil fume mesh in a flat plate structure, the overall thickness is effectively controlled while achieving three-layer filtration. This avoids the bulky size problem caused by adding filters in the traditional way, which is in line with the design trend of lightweight and miniaturized kitchen appliances, making it easy to install and saving space.

[0025] 2. Optimized oil fume adsorption path and high separation efficiency: Utilizing the design of the central smoke baffle 31 inserted into the front air inlet slot 12, combined with the arc-shaped guide part 32 at its rear end and the rear "V"-shaped air outlet smoke baffle 21, a multi-stage, winding, and interconnected oil fume adsorption channel 40 is formed. As the oil fumes pass through, they undergo multiple collisions, deflections, and adsorption processes, resulting in the thorough trapping of grease particles and significantly improved separation efficiency.

[0026] In this embodiment, the inlet smoke baffle 11, the middle smoke baffle 31, and the outlet smoke baffle 21 are all vertically extending elongated structures. Designating each smoke baffle as a vertically extending elongated structure allows the separator to better adapt to the natural upward airflow of cooking fumes during installation. This facilitates the downward flow of oil droplets along the surface of the smoke baffle under gravity, preventing localized grease buildup and blockage of the air duct, thus improving the grease's self-guiding ability and the long-term working efficiency of the separator.

[0027] Furthermore, the front fume mesh 10, the middle layer fume mesh 30, and the rear fume mesh 20 are all provided with horizontally extending central connecting walls 50, which are used to connect the inlet smoke baffle 11, the middle smoke baffle 31, or the outlet smoke baffle 21, respectively. By setting the horizontally extending central connecting walls 50, the effect is to provide a sturdy common support point for all vertical smoke baffles, significantly enhancing the overall structural strength and rigidity of each layer of fume mesh, effectively preventing the smoke baffles from deforming or breaking during long-term use or cleaning, reducing vibration noise, ensuring the long-term stability of the fume duct shape, and extending the product's service life.

[0028] In this embodiment, the middle smoke-blocking strip 31 has a first protrusion 33 at its end that faces the oil fume adsorption channel 40. The first protrusion 33 at the end of the middle smoke-blocking strip 31, facing into the channel, further disturbs the airflow passing through that point, creating local turbulence and increasing the probability and contact area between the oil fumes and the surface of the smoke-blocking strip. This protrusion acts as an additional "capture point," more effectively intercepting fine oil droplets, thereby further improving the separation effect, especially the ability to capture tiny oil mist particles.

[0029] Furthermore, the end of the exhaust baffle 21 is provided with a second protrusion 23 that faces the oil fume adsorption channel 40. The second protrusion 23 functions similarly to the first protrusion 33, acting as a "gatekeeper" in the final stage of oil flow. It captures residual oil droplets that were not separated in the first two stages, ensuring purification effectiveness. Simultaneously, it complements the first protrusion 33, jointly optimizing the airflow field within the channel for more thorough grease separation.

[0030] In this embodiment, a magnetic suction member 13 is provided at the top of the front fume filter 10; a first slot 14 and a first locking part 34 are provided at the bottom of the front fume filter 10 and the bottom of the middle layer fume filter 30, respectively. Through the cooperation of the magnetic suction member 13 with the first slot 14 and the first locking part 34, the effect is to achieve a quick, accurate and firm connection between the upper and lower sides of the front fume filter 10 and the middle layer fume filter 30. Specifically, the front fume filter 10 has a spring-loaded top bead 15 on its upper part, and the rear fume filter 20 has a limiting hole 24 on its upper part for the spring-loaded top bead 15 to engage. The combination of the spring-loaded top bead 15 and the limiting hole 24 provides a snap-fit ​​connection with a "click" feedback. This connection method provides a clear tactile feedback during installation, accurately indicating when the installation is complete and ensuring a reliable connection. Disassembly requires only a certain amount of force, making the operation simple and intuitive, further optimizing the installation and removal experience between the front and rear fume filters 20.

[0031] Furthermore, a matching second locking part 16 and a second locking groove 25 are provided below the front fume filter 10 and below the rear fume filter 20. The second locking part 16 and the second locking groove 25 below the front and rear fume filters 20 serve to create a two-point positioning and locking mechanism with the connection above, ensuring the integrity and stability of the assembled separator structure. This prevents misalignment or abnormal noise between layers under vibration or airflow impact, guaranteeing long-term reliability.

[0032] In this embodiment, the number of air inlet slots 12 and air outlet slots 22 are equal and correspond one-to-one. Ensuring that the number of air inlet slots 12 and air outlet slots 22 are equal and correspond one-to-one guarantees the uniformity of airflow distribution, thereby achieving an optimal balance between separation performance and ventilation efficiency overall.

[0033] In this embodiment, the front fume filter 10, the rear fume filter 20, and the middle fume filter 30 are made of aluminum alloy. Aluminum alloy has excellent thermal conductivity, which helps the fumes cool and condense quickly upon contact, improving separation efficiency; it is lightweight, meeting the requirements for product lightweighting; it has high strength, ensuring structural durability; and its smooth surface makes it easy to clean and corrosion resistant, comprehensively improving the product's performance and service life.

[0034] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A flat, three-layer high-efficiency oil fume separator, characterized in that, include: Flat plate-shaped front fume mesh (10), rear fume mesh (20) and middle layer fume mesh (30); The front fume screen (10) is provided with a number of spaced-apart air intake baffles (11), and an air intake groove (12) is formed between adjacent air intake baffles (11); the rear fume screen (20) is provided with a number of spaced-apart air outlet baffles (21), and an air outlet groove (22) is formed between adjacent air outlet baffles (21). The intermediate layer fume mesh (30) is sandwiched between the front fume mesh (10) and the rear fume mesh (20), and it is provided with a number of spaced-apart middle smoke baffles (31), which are inserted into and blocked in the middle of the air inlet slot (12). The rear end of the middle smoke baffle (31) is provided with an arc-shaped guide (32) extending to both sides. The exhaust smoke baffle (21) has a "V" shaped structure and is located in the middle of two adjacent middle smoke baffles (31). The inlet smoke baffle (11), the middle smoke baffle (31) and the exhaust smoke baffle (21) form an interconnected oil fume adsorption channel (40).

2. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The inlet smoke deflector (11), the middle smoke deflector (31), and the outlet smoke deflector (21) are all vertically extending strip structures.

3. The flat three-layer high-efficiency oil fume separator according to claim 2, characterized in that: The front fume mesh (10), the middle fume mesh (30) and the rear fume mesh (20) are all provided with a horizontally extending middle connecting wall (50), which is used to connect the air inlet baffle (11), the middle baffle (31) or the air outlet baffle (21), respectively.

4. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The middle smoke baffle (31) and the end of the baffle are provided with a first protrusion (33) that protrudes toward the oil fume adsorption channel (40).

5. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The end of the air outlet smoke deflector (21) is provided with a second protrusion (23) that protrudes toward the oil fume adsorption channel (40).

6. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The top of the front fume filter (10) is provided with a magnetic suction element (13); the bottom of the front fume filter (10) and the bottom of the middle layer fume filter (30) are provided with a first card slot (14) and a first card part (34) that are compatible with each other.

7. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The front fume filter (10) is provided with an elastic top bead (15) above it, and the rear fume filter (20) is provided with a limiting hole (24) for the elastic top bead (15) to be inserted into.

8. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The lower part of the front fume filter (10) and the lower part of the rear fume filter (20) are provided with a second card part (16) and a second card slot (25) that are adapted to each other.

9. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The number of air inlet slots (12) and air outlet slots (22) are equal and are set in a one-to-one correspondence.

10. The flat three-layer high-efficiency oil fume separator according to claim 1, characterized in that: The front fume filter (10), the rear fume filter (20), and the middle fume filter (30) are made of aluminum alloy.

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