Range hood with structure for preventing oil from leaking from front side

Abstract

The utility model relates to a range hood with a structure for preventing oil from leaking from the front side, the range hood adopts a spatial layout that an upper fan frame is matched with side suction type mesh enclosures to serve as an air duct, at least two groups of mesh enclosures are arranged at a smoke suction port of the range hood, an oil guide window is correspondingly arranged on the outer plane of each group of mesh enclosures, and the oil guide windows are arranged along the lower edges of the corresponding mesh enclosures. The width is not lower than that of the mesh enclosure; the oil guide window is turned outwards to form an inclined structure for guiding oil drops on the outer plane of the mesh enclosure into the cavity of the range hood; an oleophobic dam is arranged on the outer plane between every two adjacent groups of net covers, and is used for guiding oil drops at intervals of the net covers into the adjacent oil guide windows. According to the utility model, the gravity and the inclination angle of the oil guide plate are utilized, so that oil droplets flow into the cavity along the plate surface. Through the design, the lower plane of the range hood does not have a trace that condensed oil drops slide down any more, so that the attractive degree of the range hood and the convenience of sanitation and cleaning are greatly improved.

Description

Technical Field

[0001] This utility model relates to a range hood with a front-drip oil-preventing structure. Background Technology

[0002] In modern kitchen life, range hoods, as essential household appliances for purifying cooking air and reducing the health impact of cooking fumes, are highly valued by consumers for both their efficiency and appearance. While traditional range hood designs have made some progress in fume extraction, shortcomings remain in details, particularly in the collection and guidance of oil droplets. This directly affects the cleanliness of the hood's exterior, thus impacting the overall aesthetics of the kitchen and the user experience. Popular range hoods on the market typically use mesh designs to block large oil droplets while absorbing fumes. However, these meshes often prioritize efficient airflow, neglecting the issue of oil droplets forming and sliding off the front of the mesh during condensation. Figure 1 , Figure 2 The condensation and accumulation of oil droplets on the front of the range hood can form "black snot"-like stains over time, which are not only unsightly but also extremely troublesome to clean. Due to the lack of an effective guiding structure, the condensed oil droplets cannot be guided into the oil collection structure inside the range hood in a timely and appropriate manner, but instead flow directly along the bottom front of the range hood. This design defect has become a technical problem that urgently needs to be solved in the field of range hoods. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a range hood with a front-drip oil-prevention structure.

[0004] The range hood of this utility model adopts an upper-mounted fan frame combined with a side-suction mesh cover as the spatial layout of the air duct. There are at least two sets of mesh covers at the smoke inlet of the range hood. Each set of mesh covers has an oil guide window on its outer plane. The oil guide window is arranged along the lower edge of the corresponding mesh cover and its width is greater than or equal to the width of the mesh cover. The oil guide window is turned outward to form an inclined structure that guides the oil droplets on the outer plane of the mesh cover into the cavity of the range hood. An oil dam is provided on the outer plane between two adjacent sets of mesh covers. The oil dam is used to guide the oil droplets at the gap between the mesh covers into the adjacent oil guide window.

[0005] The range hood provided by this utility model also includes the following auxiliary technical solutions:

[0006] The flange height D of the oil guide window must be at least 1mm. The oil guide window has a louvered structure.

[0007] The oil dam is formed by stretching the outer plane outward.

[0008] Among them, the oil dam is adjacent to the upper edge of the oil guide window and is configured as an inclined structure that guides oil droplets to slide down to the corresponding oil guide window via the inclined side.

[0009] The mesh cover holes are configured with inward-turned edges.

[0010] Among them, the angle δ between the net and the horizontal plane is ≥30°.

[0011] The implementation of this utility model has the following technical effects:

[0012] This invention, through structural design and physical principles, effectively guides the condensed oil droplets on the front of the mesh cover into the internal cavity of the range hood, rather than through the external oil passages. This device achieves dynamic collection and directional guidance of oil droplets by altering the traditional mesh cover's structural design. Utilizing gravity and the tilt angle of the guide plate, oil droplets flow along the plate surface into the cavity, while the flanged structure and grease trap prevent overflow. This design eliminates the traces of condensed oil droplets sliding down the lower surface of the range hood, significantly improving its aesthetics and ease of cleaning. Attached Figure Description

[0013] Figure 1 The diagram illustrates the dripping of oil droplets from the front of a traditional range hood.

[0014] Figure 2 This provides another perspective on the oil droplet dripping from traditional range hoods.

[0015] Figure 3 The structure of the side suction mesh cover for the range hood of this utility model is presented.

[0016] Figure 4 The side view structure of the side suction mesh cover is given.

[0017] Figure 5 The overall structure of the concealed outer shell of the range hood of this utility model is given. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figures 3-5 As shown, the range hood of this utility model adopts an upper-mounted fan frame combined with a side-suction mesh cover 100 as the spatial layout of the air duct. 2-6 sets of mesh covers 100 are installed at the smoke inlet of the range hood. The mesh covers 100 are located 114mm below the fan cabinet and gradually slope outwards from bottom to top to form a side-suction design. Each set of mesh covers 100 has an oil guide window 200 on its outer surface, arranged along the lower edge of the corresponding mesh cover 100, with a width F equal to the width E of the mesh cover 100. The oil guide window 200 is flanged outwards to form an inclined structure that guides oil droplets from the outer surface of the mesh cover 100 into the range hood cavity.

[0020] The width F of the oil guide window 200 is greater than the width E of the mesh cover 100. An oil dam 300 is provided on the outer plane between two adjacent sets of mesh covers 100. The oil dam 300 is used to guide the oil droplets at the interval of the mesh cover 100 into the adjacent oil guide window 200.

[0021] This utility model improves the traditional single mesh cover 100 design by arranging it into 2 to 6 groups. The oil guide window 200 equipped below each group of mesh covers 100 reflects ingenious design wisdom. It not only helps to maintain the high efficiency of air flow, but also undertakes the task of guiding oil droplets. Together with the oil dam 300 designed above each oil guide window 200, it prevents oil droplets from overflowing, thus meeting all the needs from dynamic capture to directional guidance.

[0022] As a further improvement, the flange height D of the oil guide window 200 is at least 1mm, and the protrusion structure above 1mm provides additional assistance for guiding oil droplets. Furthermore, the oil guide window 200 has a louvered structure, which increases the oil receiving area and drives oil droplets smoothly into the interior of the range hood, effectively keeping the range hood clean.

[0023] As an alternative improvement, to save manufacturing costs, the grease dam 300 can be formed by stamping, stretching outward from the outer plane. The grease dam 300 is adjacent to the upper edge of the oil guide window 200 and is configured with a triangular bevel structure that guides oil droplets to slide down to the corresponding oil guide window 200 via a bevel. The height of the bevel structure must not be less than 1 mm. The protruding triangular bevel structure with a height greater than 1 mm provides additional assistance for guiding the oil droplets.

[0024] As another improvement, to prevent oil inside the mesh cover 100 from entering the outer surface of the mesh cover 100 through its holes, the holes of the mesh cover 100 are configured with inward-curving edges. This inward-curving design effectively prevents oil droplets from flowing out through the holes of the mesh cover 100. Furthermore, the angle δ formed by the mesh cover 100 and the horizontal plane is ≥30°. Utilizing the fundamental laws of surface tension and gravity in nature, even if oil droplets condense on the surface of the mesh cover 100, they will slide into the internal oil collection system on their own, instead of flowing along the outer side of the mesh cover 100.

[0025] This invention not only ensures the effective handling of oil droplets and maintains the clean appearance of the range hood, but also meets design aesthetics and consumer expectations.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A range hood with a front-drip oil-prevention structure. The range hood uses a top-mounted fan frame paired with a side-suction mesh cover as the air duct layout, characterized by: The mesh cover has at least two sets at the smoke inlet of the range hood. Each set of mesh covers has an oil guide window on its outer plane. The oil guide window is arranged along the lower edge of the corresponding mesh cover and its width is greater than or equal to the width of the mesh cover. The oil guide window is turned outwards to form an inclined structure that guides oil droplets from the outer surface of the mesh cover into the range hood cavity; An oil-draining dam is provided on the outer plane between two adjacent sets of mesh covers. The oil-draining dam is used to guide oil droplets at the mesh cover gaps into the adjacent oil guide windows.

2. The range hood according to claim 1, characterized in that: The flange height D of the oil guide window is at least 1 mm.

3. The range hood according to claim 1, characterized in that: The oil guide window has a louvered structure.

4. The range hood according to claim 1, characterized in that: The oleophobic dam is formed by stretching the outer plane outward.

5. The range hood according to claim 1, characterized in that: The oil dam is adjacent to the upper edge of the oil guide window and is configured as an inclined structure that guides oil droplets to slide down to the corresponding oil guide window via an inclined side.

6. The range hood according to claim 1, characterized in that: The mesh cover holes are configured with inward-turned edges.

7. The range hood according to claim 6, characterized in that: The angle between the netting and the horizontal plane is δ≥30°.

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