A range hood
Patent Information
- Application Number
- CN202522326292.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0002]在现有技术中,吸油烟机在外壳结构上包括烟机壳体和集烟罩,集烟罩的顶部和烟机壳体的底部相连,烟机壳体的烟机前板和集烟罩的集烟前板通过平面贴合配合再由紧固件固定连接,由于毛细现象,烟机壳体内壁上形成的油滴,会通过集烟前板和烟机前板由固定件穿过的安装孔处向外渗透,从而导致烟机前板和集烟前板的外壁上存在油垢,会产生异味并且需要定期清洗,影响到用户的厨房体验
通过在安装孔上方设置导油板,能够有效引导烟机壳体内壁上的油滴滴落并避开安装孔,从而切断了油滴通过安装孔渗透到壳体前板外壁的路径,避免了因毛细现象导致的油污外泄,这不仅防止了外壁脏污积累和异味产生,还减少了清洁频率,提升了用户的厨房卫生体验和产品美观度。
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Figure CN224837523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a range hood and belongs to the technical field of kitchen appliances. Background Technology
[0002] In existing technology, range hoods consist of a range hood housing and a smoke collection hood in their outer shell structure. The top of the smoke collection hood is connected to the bottom of the range hood housing. The front panel of the range hood housing and the front panel of the smoke collection hood are connected by a flat fit and then fixed by fasteners. Due to capillary action, oil droplets formed on the inner wall of the range hood housing will seep outward through the mounting holes through which the fasteners pass on the front panel of the range hood and the front panel of the smoke collection hood. This results in grease buildup on the outer walls of the front panel of the range hood and the front panel of the smoke collection hood, which produces odors and requires regular cleaning, affecting the user's kitchen experience. Utility Model Content
[0003] The purpose of this invention is to provide a range hood that can effectively prevent oil droplets from seeping outwards.
[0004] This utility model is achieved through the following technical solution.
[0005] A range hood includes a smoke collection hood with a smoke collection front plate and a range hood housing with a housing front plate. The smoke collection front plate and the range hood housing are connected and have corresponding mounting holes at the connection point. Above the mounting holes is an oil guide plate extending from the inner wall of the range hood housing into the range hood housing to guide oil droplets on the inner wall of the range hood housing to fall off and avoid the mounting holes.
[0006] As a further improvement of this utility model, the oil guide plate extends from one side of the inner wall of the range hood housing to the other side.
[0007] As a further improvement of this utility model, the oil guide plate is inclined relative to the horizontal direction, which is suitable for the oil droplets on the oil guide plate to drip from the side away from the inner wall of the range hood housing, and the inclination of the oil guide plate gradually increases from the middle to both sides.
[0008] As a further improvement of this utility model, the oil guide plate is connected to a connecting plate that fits against the inner wall of the range hood housing, and the bottom edge of the connecting plate is connected to the edge of the oil guide plate positioned on the range hood housing.
[0009] As a further improvement of this utility model, the front smoke collecting plate has a smoke inlet, and the portion of the front smoke collecting plate between its top edge and the top edge of the smoke inlet forms an oil receiving part, and the extension width of the oil guide plate is suitable for the oil dripping from it to fall into the oil receiving part.
[0010] As a further improvement of this utility model, the front smoke collecting plate is inclined backward from its top edge to its bottom edge, and the part of the front smoke collecting plate between its side plate and the corresponding side edge of the smoke inlet forms a guide section, so that the oil droplets on the oil receiving part flow downward along the two guide sections.
[0011] As a further improvement of this utility model, the front smoke collecting plate has a lip structure that protrudes along the inner wall of the front smoke collecting plate at least at its top edge and two side edges, which is used to prevent oil droplets flowing on the oil receiving part and the two guide parts from dripping from the smoke inlet to the outside of the smoke collecting hood.
[0012] As a further improvement of this utility model, an oil cup is provided at the bottom of the smoke hood to receive oil droplets flowing down along the guide section.
[0013] As a further improvement of this utility model, the smoke collection hood has a smoke collection base plate connected to the smoke collection front plate, and the smoke collection base plate has at least one oil leakage hole, so that the oil droplets flowing from the guide section to the smoke collection base plate drip into the oil cup through the oil leakage hole.
[0014] As a further improvement of this utility model, the smoke collecting base plate has a downwardly recessed oil receiving groove for collecting oil droplets flowing onto the smoke collecting base plate, and an oil leakage hole is formed on the oil receiving groove.
[0015] The beneficial effects of this utility model are: By installing an oil guide plate above the mounting hole, the oil droplets on the inner wall of the range hood housing can be effectively guided to fall and avoid the mounting hole, thereby cutting off the path of the oil droplets to penetrate to the outer wall of the front panel of the housing through the mounting hole. This avoids oil leakage caused by capillary action, which not only prevents the accumulation of dirt and odor on the outer wall, but also reduces the frequency of cleaning, improves the user's kitchen hygiene experience and the product's aesthetics. Attached Figure Description
[0016] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein: Figure 1 This is a structural diagram of a range hood; Figure 2 This is a schematic diagram of the internal structure of a range hood; Figure 3 for Figure 2 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the oil circuit inside a range hood; Figure 5 This is a schematic diagram of the front panel of the smoke collection system. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.
[0019] This embodiment illustrates a range hood capable of preventing oil droplets from penetrating to the outer wall, see reference. Figures 1-5 The range hood of this embodiment includes a smoke collection hood 1 and a range hood housing 2. The smoke collection hood 1 has a smoke collection front plate 11, and the range hood housing 2 has a housing front plate 21. The smoke collection front plate 11 and the range hood housing 2 are connected by a planar fitting method, and corresponding mounting holes h are provided at the connection point. These mounting holes h are typically used to insert fasteners such as screws or bolts to achieve a fixed connection between the two. Above the mounting holes h, an oil guide plate 31 is provided on the inner wall of the range hood housing 2. The oil guide plate 31 extends from the inner wall of the range hood housing 2 toward the inner side of the range hood housing 2, and can effectively guide the oil droplets accumulated on the inner wall of the range hood housing 2 to drip downwards. The setting of the oil guide plate 31 causes the flow path of the oil droplets to be deflected, thereby avoiding the area of the mounting holes h. In existing technologies, due to capillary action, oil droplets easily penetrate through the mounting hole h to the outer wall of the front panel 21 of the housing, leading to grease accumulation and odor generation. This embodiment, however, uses the guiding action of the oil guide plate 31 to cut off the path of oil droplets to the mounting hole h, causing the droplets to collect on the guide plate 31 and drip into a safe area. This design not only avoids oil droplet contamination of the outer wall and reduces cleaning frequency, but also improves the user's kitchen hygiene experience. The reduction in grease directly lowers the risk of bacterial growth and odor emission. Furthermore, the oil guide plate 31 has a simple structure and is easy to integrate into existing range hood designs without significant changes to the overall layout.
[0020] In this embodiment, the oil guide plate 31 extends from one side of the inner wall of the range hood housing 2 to the other side, covering the entire width of the connection area. The smoke collection front plate 11 and the housing front plate 21 are in close contact at the connection point through a planar fit and are fixed by fasteners and mounting holes h. Although this fit enhances structural stability, there is still a risk of oil droplet penetration due to capillary action in the fit gaps and mounting holes h. The oil guide plate 31 extends continuously from one side to the other, so that the flow of oil droplets on the inner wall of the range hood housing 2 is intercepted and guided by the oil guide plate 31 throughout. No matter where the oil droplets originate, they will collect and drip off the oil guide plate 31, thereby ensuring that the connection between the smoke collection front plate 11 and the range hood housing 2, including the fit gaps and mounting holes h, is outside the oil path. This eliminates the possibility of oil droplets penetrating through any tiny gaps, further enhancing the anti-oil leakage effect. This allows the outer wall of the range hood to remain clean for a longer time, eliminating the need for frequent wiping of the outer surface and improving the product's durability and aesthetics.
[0021] In this embodiment, to further improve the concentration and efficiency of oil droplet guidance, the oil guide plate 31 is inclined relative to the horizontal direction. This inclined structure allows oil droplets on the oil guide plate 31 to naturally flow and drip towards the edge away from the inner wall of the range hood housing 2. More specifically, the inclination of the oil guide plate 31 gradually increases from the middle to both sides. That is, the oil guide plate 31 is relatively gentle in the middle area, while it gradually becomes steeper towards the two sides. The gradually inclined setting causes the oil droplets to converge to both sides due to gravity when flowing on the surface of the oil guide plate 31, and finally drip from the two sides. By concentrating the oil dripping area on both sides, the local pollution that may be caused by random oil droplet dripping is avoided. The oil path guidance is optimized, making the collection of oil droplets more controllable and facilitating subsequent processing. This concentrated dripping method reduces the risk of oil droplets splashing inside the range hood and keeps the interior clean.
[0022] In this embodiment, the oil guide plate 31 is connected to a connecting plate 32 that fits snugly against the inner wall of the range hood housing 2, and the bottom edge of the connecting plate 32 is connected to the edge of the oil guide plate 31 positioned on the range hood housing 2. The connecting plate 32 is typically fixed to the inner wall of the range hood housing 2 by welding, riveting, or bolting to ensure a tight fit, while the oil guide plate 31 extends outward from the lower edge of the connecting plate 32, forming an L-shaped or folded plate structure, which provides support for the oil guide plate 31 and prevents deformation or loosening caused by the weight of oil droplets or airflow impact. The snug fit of the connecting plate 32 also reduces the gap between the oil guide plate 31 and the inner wall, preventing oil droplets from leaking out of the gaps and ensuring that all oil droplets are guided to the surface of the oil guide plate 31.
[0023] In this embodiment, the front smoke collecting plate 11 has a smoke inlet c, and the portion of the front smoke collecting plate 11 from its top edge to the top edge of the smoke inlet c forms an oil receiving portion 111. The extension width of the oil guide plate 31 is set so that oil droplets dripping from it can fall onto the oil receiving portion 111. By limiting the extension width of the oil guide plate 31, oil droplets are prevented from dripping directly from the smoke inlet c out of the smoke collecting hood 1. If the oil guide plate 31 is too short or too long, the oil droplets may miss the oil receiving portion 111 and directly enter the smoke inlet c or drip to the outside, thus confining the oil droplets to circulate inside the smoke collecting hood 1 and reducing the risk of oil spillage. The oil receiving portion 111 guides the oil droplets along a controllable path, laying the foundation for subsequent oil droplet treatment.
[0024] In this embodiment, the smoke collecting front plate 11 is inclined backward from its top edge to its bottom edge. This inclined structure allows oil droplets to flow downward under the action of gravity. The portion of the smoke collecting front plate 11 between its side plate and the corresponding side edge of the smoke inlet c forms a guide section 112, allowing oil droplets on the oil receiving part 111 to flow downward along the two guide sections 112, guiding the oil droplets to the bottom area of the smoke collecting hood 1. The two guide sections form a continuous oil droplet flow path, avoiding the retention or diffusion of oil droplets in the oil receiving part 111, and improving the efficiency of oil droplet collection, because the oil droplets are concentrated and guided to the designated collection point, reducing the accumulation of internal oil.
[0025] In this embodiment, the front smoke collecting plate 11 has a lip structure 113 protruding along the inner wall of the front smoke collecting plate 11 at least at its top edge and two side edges. The lip structure 113 can effectively prevent oil droplets flowing on the oil receiving part 111 and the two guide parts 112 from dripping from the smoke inlet c to the outside of the smoke collecting hood 1. When oil droplets flow in the oil receiving part 111 or the guide parts 112, the lip structure 113 acts as a barrier to prevent oil droplets from splashing out of the smoke inlet c due to inertia or airflow, ensuring that the oil droplets always flow inside the smoke collecting hood 1 and do not pollute the external environment or the user's kitchen.
[0026] In this embodiment, an oil cup 4 is provided at the bottom of the fume hood 1. The oil cup 4 is typically a detachable container used to receive oil droplets flowing downwards along the guide section 112. The flow path of the oil droplets starts from the inner wall of the range hood housing 2, drips through the oil guide plate 31 to the oil receiving section 111, and then is guided through the guide section 112 to the bottom of the fume hood 1, finally flowing into the oil cup 4, forming a closed oil path, so that the oil droplets are collected and processed in a concentrated manner. The oil cup 4 is usually designed as a detachable structure, which allows users to remove it for cleaning periodically, avoiding long-term accumulation of oil inside the machine.
[0027] In this embodiment, the smoke collection hood 1 has a smoke collection base plate 12 connected to the smoke collection front plate 11. The smoke collection base plate 12 has at least one oil drain hole 121, allowing oil droplets flowing from the guide section 112 onto the smoke collection base plate 12 to drip into the oil cup 4 through the oil drain hole 121. The oil drain holes 121 are typically evenly distributed on the smoke collection base plate 12 to ensure that the oil droplets can pass through quickly without clogging. When the oil droplets flow from the guide section 112 to the smoke collection base plate 12, the oil drain hole 121 acts as an outlet, guiding the oil droplets directly into the oil cup 4 below. This avoids the accumulation of oil droplets on the smoke collection base plate 12, reducing the cleaning burden.
[0028] In this embodiment, the smoke collecting base plate 12 has a downwardly recessed oil receiving groove 122 for collecting oil droplets flowing onto the smoke collecting base plate 12, and an oil drain hole 121 is formed on the oil receiving groove 122. The oil receiving groove 122 is usually a shallow groove structure, and its outline matches the smoke collecting base plate 12. It can concentrate the dispersed oil droplets into the groove and then discharge them through the oil drain hole 121 at the bottom of the groove, so that the oil droplets are temporarily stored and guided in the oil receiving groove 122, avoiding the oil droplets from flowing around on the flat base plate.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A range hood, characterized in that, The device includes a smoke collection hood (1) with a smoke collection front plate (11) and a smoke machine housing (2) with a housing front plate (21). The smoke collection front plate (11) and the smoke machine housing (2) are connected and have corresponding mounting holes (h) at the connection point. Above the mounting holes (h) is an oil guide plate (31) extending from the inner wall of the smoke machine housing (2) into the smoke machine housing (2) to guide oil droplets on the inner wall of the smoke machine housing (2) to fall and avoid the mounting holes (h).
2. The range hood according to claim 1, characterized in that, The oil guide plate (31) extends from one side of the inner wall of the smoke machine housing (2) to the other side.
3. The range hood according to claim 2, characterized in that, The oil guide plate (31) is inclined relative to the horizontal direction, which is suitable for the oil droplets on the oil guide plate (31) to drip from the side away from the inner wall of the smoke machine housing (2), and the inclination of the oil guide plate (31) gradually increases from the middle to both sides.
4. The range hood according to claim 1, characterized in that, The oil guide plate (31) is connected to a connecting plate (32) that fits against the inner wall of the range hood housing (2), and the bottom edge of the connecting plate (32) is connected to the edge of the oil guide plate (31) positioned on the range hood housing (2).
5. The range hood according to claim 1, characterized in that, The front smoke collecting plate (11) has a smoke inlet (c), and the portion of the front smoke collecting plate (11) between its top edge and the top edge of the smoke inlet (c) forms an oil receiving portion (111), the extension width of the oil guide plate (31) being adapted to allow oil dripping from it to fall into the oil receiving portion (111).
6. The range hood according to claim 5, characterized in that, The front smoke collecting plate (11) is inclined backward from its top edge to its bottom edge, and the portion of the front smoke collecting plate (11) between its side plate and the corresponding side edge of the smoke inlet (c) forms a guide section (112), so that the oil droplets on the oil receiving section (111) flow downward along the two guide sections (112).
7. The range hood according to claim 6, characterized in that, The front smoke collecting plate (11) has at least one lip structure (113) at its top edge and two side edges, which protrudes along the inner wall of the front smoke collecting plate (11) to prevent oil droplets flowing from the oil receiving part (111) and the two guide parts (112) from dripping from the smoke inlet (c) to the outside of the smoke collecting hood (1).
8. The range hood according to claim 6, characterized in that, The bottom of the smoke hood (1) is provided with an oil cup (4) for receiving oil droplets flowing down along the guide section (112).
9. The range hood according to claim 8, characterized in that, The smoke collection hood (1) has a smoke collection base plate (12) connected to the smoke collection front plate (11). The smoke collection base plate (12) has at least one oil leakage hole (121) so that the oil droplets flowing from the guide section (112) onto the smoke collection base plate (12) drip into the oil cup (4) through the oil leakage hole (121).
10. The range hood according to claim 9, characterized in that, The smoke collecting base plate (12) has a downwardly recessed oil receiving groove (122) for collecting oil droplets flowing onto the smoke collecting base plate (12), and the oil leakage hole (121) is formed on the oil receiving groove (122).