A range hood with an oil screen panel follow-up opening and closing structure

Abstract

A range hood with a movable oil filter panel opening and closing structure includes: a housing, a blower unit, a fan assembly, a movable panel, a flipping assembly, and a smoke filter assembly. The smoke filter assembly is movably disposed in the oil fume absorption chamber and has several absorption ports and / or absorption slots. The upper side of the smoke filter assembly is connected to the movable panel. When the movable panel flips outward and opens the air inlet, the smoke filter assembly moves with the movable panel and is pulled out of the air inlet. When the movable panel flips and closes the air inlet, the smoke filter assembly moves with the movable panel and sinks into the oil fume absorption chamber. This invention, through the linkage design between the smoke filter assembly and the movable panel, allows the smoke filter assembly to be pulled out and moved forward synchronously when the panel is opened, bringing it closer to the source of oil fumes on the stove. This effectively reduces the distance of oil fume diffusion and dynamically and precisely aligns the optimal absorption area of ​​the smoke inlet above the stove flame.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a range hood with an oil filter panel that opens and closes automatically. Background Technology

[0002] A range hood, also known as a cooking hood, is an indispensable environmental purification appliance in modern kitchens. Its core function is to capture and remove pollutants such as oil fumes and exhaust gases generated during cooking to maintain fresh and clean kitchen air. Existing side-draft range hoods typically employ an inverted triangular or "7"-shaped design for their casing, mounting the unit above and to the side of the cooktop. The area of ​​the casing facing the cooktop features an oil fume absorption chamber, the opening of which serves as the oil fume absorption inlet. This inlet usually has an oil fume mesh (or grille, panel) installed to initially filter oil droplets and guide the fumes.

[0003] To prevent dust, insects, and other foreign objects from entering the range hood when it is not in operation, while maintaining the overall aesthetics of the kitchen and avoiding direct contact between the range hood's interior and the kitchen environment, the industry commonly uses a hinged panel in front of the fume extraction inlet. When the range hood is turned on, the panel automatically opens to expose the extraction inlet for fume extraction; when the range hood is turned off, the panel automatically closes to cover the extraction inlet.

[0004] However, a significant limitation exists in existing technologies: the fume filter, a key component for capturing cooking fumes, is typically designed as a fixed, immovable structure, installed at a specific, non-adjustable angle at the suction port. This means the direction of fume intake is fixed. Especially for "7"-shaped side-suction range hoods that prioritize a slim and minimalist design, due to their relatively thin body and compact internal space, this fixed-angle fume filter often struggles to precisely align its optimal suction coverage area with the core smoke-generating zone of the stove burner. This design flaw directly results in some fumes not being effectively absorbed during cooking, especially stir-frying, which produces large amounts of smoke. These fumes easily escape from the edges of the suction coverage area, ultimately affecting the product's actual smoke removal performance and user experience. Therefore, further improvements are needed. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a range hood with a responsive oil filter panel that opens and closes automatically.

[0006] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a range hood with an oil mesh panel that opens and closes as needed, including: a casing, a fan cabinet, a fan assembly, a movable panel, a flipping assembly, and an oil mesh assembly; The fan assembly is disposed on the air handling unit; the air handling unit is located above the chassis; the chassis is provided with an oil fume adsorption chamber; an air inlet is provided on the front side of the oil fume adsorption chamber; the flipping assembly can flip the movable panel relative to the front side of the chassis to cover or open the air inlet; The smoke mesh assembly is movably disposed in the oil fume adsorption chamber and has several adsorption ports and / or adsorption slots; the upper side of the smoke mesh assembly is connected to the movable panel; when the movable panel is flipped outward and the air inlet is opened, the smoke mesh assembly can move with the movable panel and be pulled out of the air inlet; when the movable panel is flipped and the air inlet is closed, the smoke mesh assembly can move with the movable panel and be recessed into the oil fume adsorption chamber.

[0007] Optionally, the chassis is provided with arc-shaped guide grooves on both sides; the smoke mesh assembly is provided with smoke mesh connecting posts on both sides; the smoke mesh connecting posts are slidably installed in the arc-shaped guide grooves.

[0008] Optionally, the smoke mesh assembly is provided with a smoke mesh hinge member on the side near the movable panel for hinged connection to the movable panel.

[0009] Optionally, the smoke mesh assembly includes a smoke mesh mounting frame and a smoke mesh body; the smoke mesh connecting column and the smoke mesh hinge component are disposed on the smoke mesh mounting frame; the adsorption port and / or adsorption groove are disposed on the smoke mesh body; the smoke mesh body is detachably mounted on the smoke mesh mounting frame.

[0010] Optionally, movable side plates are provided on both sides of the movable panel; one side of the movable side plate is fixed to the movable panel, and the other side can movably pass through the chassis and extend into the fume adsorption chamber; the side of the movable side plate extending into the fume adsorption chamber is rotatably mounted on the chassis; the flipping assembly can drive the movable side plate to rotate.

[0011] Optionally, the movable side plate has a fan-shaped structure.

[0012] Optionally, the flipping assembly includes a drive unit and several drive links; the several drive links are hinged together, and at least one drive link is connected to the output end of the drive unit, and at least one drive link is connected to the movable side plate.

[0013] Optionally, a lighting component is provided on the inner side of the movable panel; when the movable panel is flipped outward and the air inlet is opened, the lighting component can illuminate downward.

[0014] The beneficial effects of this utility model are: 1. Achieved dynamic optimization of smoke extraction coverage: By linking the smoke filter assembly with the movable panel, when the panel is opened, the smoke filter assembly is simultaneously pulled out and moved forward, bringing it closer to the source of cooking fumes on the stove. This "active approach" effectively reduces the distance of fume diffusion, dynamically and precisely aligning the optimal adsorption area of ​​the smoke extraction port above the stove flame, thus significantly improving the efficiency of fume capture in physical space and fundamentally reducing fume escape.

[0015] 2. Compact structure, especially suitable for thin designs: When the machine is off, the smoke filter assembly can retract into the oil fume adsorption chamber along with the recessed panel, keeping the front of the machine flat or streamlined, meeting the aesthetic demands of modern kitchens for thinner and more aesthetically pleasing appliances. This "extend when in use, retract when not in use" mechanism solves the structural contradiction of insufficient coverage of the fixed oil filter caused by the thin body of traditional side-suction range hoods.

[0016] 3. Strong structural linkage and reliable operation: This design integrates the opening and closing function of the panel and the displacement function of the smoke mesh component into a set of flipping components. The action synchronization is good and the transmission path is direct, avoiding the problems of structural complexity, increased cost and increased failure rate caused by setting up multiple independent drive systems, making the whole machine more stable and reliable.

[0017] 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

[0018] 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 range hood with the movable panel in the open state. Figure 2 for Figure 1 A cross-sectional view of a center-draft range hood; Figure 3 for Figure 1 A schematic diagram of the structure behind the concealed part of the casing of a center-suction range hood; Figure 4 This is a schematic diagram of the movable panel of the range hood of this utility model in the closed state; Figure 5 for Figure 4 A cross-sectional view of a central-range hood.

[0019] Explanation of key component symbols: 10. Chassis; 11. Fume adsorption chamber; 12. Air inlet; 13. Arc-shaped guide groove; 20. Air handling unit; 30. Fan assembly; 40. Movable panel; 41. Movable side panel; 50. Flip assembly; 51. Drive unit; 52. Drive linkage; 60. Smoke mesh assembly; 61. Smoke mesh connecting column; 62. Smoke mesh hinge component; 63. Smoke mesh mounting frame; 64. Smoke mesh body; 70. Lighting assembly. Detailed Implementation

[0020] 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.

[0021] 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 specifying the number of indicated technical features or their sequential relationship.

[0022] 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.

[0023] 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.

[0024] Example Reference Figures 1 to 5 The present invention proposes a range hood with an oil mesh panel that opens and closes automatically, comprising: a housing 10, a blower 20, a blower assembly 30, a movable panel 40, a flipping assembly 50, and a smoke mesh assembly 60. The fan assembly 30 is installed on the air handling unit 20; the air handling unit 20 is located above the chassis 10; the chassis 10 is provided with an oil fume adsorption chamber 11; an air inlet 12 is provided on the front side of the oil fume adsorption chamber 11; the flip assembly 50 can make the movable panel 40 flip relative to the front side of the chassis 10 to cover or open the air inlet 12. The smoke mesh assembly 60 is movably disposed in the fume adsorption chamber 11 and has several adsorption ports and / or adsorption slots; the upper side of the smoke mesh assembly 60 is connected to the movable panel 40; when the movable panel 40 is flipped outward and the air inlet 12 is opened, the smoke mesh assembly 60 can move with the movable panel 40 and be pulled out of the air inlet 12; when the movable panel 40 is flipped and the air inlet 12 is closed, the smoke mesh assembly 60 can move with the movable panel 40 and be recessed into the fume adsorption chamber 11.

[0025] The beneficial effects of this utility model are: 1. Achieved dynamic optimization of smoke extraction coverage: By linking the smoke mesh component 60 with the movable panel 40, when the panel is opened, the smoke mesh component 60 is simultaneously pulled out and moved forward, bringing it closer to the source of cooking fumes on the stove. This "active approach" effectively reduces the distance of fume diffusion, dynamically and precisely aligning the optimal adsorption area of ​​the smoke extraction port above the stove flame, thus significantly improving the efficiency of fume capture in physical space and fundamentally reducing fume escape.

[0026] 2. Compact structure, especially suitable for thin designs: When the machine is off, the smoke filter assembly 60 can retract into the oil fume adsorption chamber 11 along with the recessed panel, keeping the front of the machine flat or streamlined, meeting the aesthetic demands of modern kitchens for thinner and more aesthetically pleasing appliances. This "extend when in use, retract when not in use" mechanism solves the structural contradiction of insufficient coverage of the fixed oil filter caused by the thin body of traditional side-suction range hoods.

[0027] 3. Strong structural linkage and reliable operation: This design integrates the opening and closing function of the panel and the displacement function of the smoke mesh component 60 into a set of flipping components 50. The action synchronization is good and the transmission path is direct, avoiding the problems of structural complexity, increased cost and increased failure rate caused by setting up multiple independent drive systems, making the whole machine more stable and reliable in operation.

[0028] In this embodiment, arc-shaped guide grooves 13 are provided on both sides of the housing 10; smoke mesh assembly 60 is provided on both sides of the smoke mesh connecting posts 61; the smoke mesh connecting posts 61 are slidably installed in the arc-shaped guide grooves 13. When the smoke mesh assembly 60 moves with the panel, it can smoothly extend or retract along a preset ideal trajectory (arc), avoiding jamming or shaking during the movement, and improving the reliability and service life of the mechanism.

[0029] In this embodiment, a smoke mesh assembly 60 is provided with a smoke mesh hinge member 62 on the side near the movable panel 40 for hinged connection to the movable panel 40. This achieves linkage between the two, and more importantly, allows the smoke mesh assembly 60 to have a slight adaptive angle adjustment relative to the movable panel 40 during movement, making the entire linkage process more flexible and smooth, better adaptable to changes in mechanical tolerances and movement trajectories, and reducing structural stress.

[0030] In this embodiment, the smoke mesh assembly 60 includes a smoke mesh mounting frame 63 and a smoke mesh body 64; a smoke mesh connecting post 61 and a smoke mesh hinge member 62 are disposed on the smoke mesh mounting frame 63; an adsorption port and / or adsorption groove are disposed on the smoke mesh body 64; the smoke mesh body 64 is detachably mounted on the smoke mesh mounting frame 63. Users or maintenance personnel can easily remove the oil-accumulated smoke mesh body 64 from the mounting frame for cleaning or replacement without disassembling the entire complex moving mechanism. This "quick-release" design greatly reduces the difficulty of daily cleaning and maintenance, and improves the user experience and maintenance efficiency of the product.

[0031] In this embodiment, movable side plates 41 are provided on both sides of the movable panel 40; one side of the movable side plate 41 is fixed to the movable panel 40, and the other side can movably pass through the housing 10 and extend into the fume adsorption chamber 11; the side of the movable side plate 41 extending into the fume adsorption chamber 11 is rotatably mounted on the housing 10; the flipping assembly 50 can drive the movable side plate 41 to rotate. Hiding the driving force and motion transmission inside the machine not only makes the exterior look simpler, but also greatly enhances the rigidity and stability of the movable panel 40 during the flipping process, effectively withstanding the mechanical load caused by frequent opening and closing, preventing panel vibration, and ensuring long-term reliability.

[0032] Specifically, the movable side panel 41 has a fan-shaped structure. The fan-shaped structure can make very efficient use of the limited space inside the chassis 10, and its unique contour provides natural structural strength for the flipping movement, avoiding stress concentration. Furthermore, the movable panel 40 in the open state and the fan-shaped movable side panels 41 on both sides form a smoke absorption chamber structure, which can effectively gather the smoke in this chamber and then draw it into the oil fume absorption chamber 11, reducing the escape of oil fumes.

[0033] In this embodiment, the flipping assembly 50 includes a drive unit 51 and several drive links 52; the drive links 52 are hinged together, and at least one drive link 52 is connected to the output end of the drive unit 51, and at least one drive link 52 is connected to the movable side plate 41. The linkage mechanism composed of drive links 52 has the advantages of smooth transmission and good force amplification. This structure can smoothly and accurately convert the rotational motion of the drive unit 51 (such as a motor) into the flipping motion required by the movable panel 40, and can generate a self-locking effect at specific positions (such as when fully open or fully closed), improving safety. The design of multiple hinge points also makes the movement more flexible and better adaptable to complex motion path requirements.

[0034] In some embodiments, a lighting component 70 is provided on the inner side of the movable panel 40; when the movable panel 40 is flipped outward and the air inlet 12 is opened, the lighting component 70 can illuminate downward. When the panel is opened to prepare for smoke extraction, the lighting component 70 automatically flips downward, providing direct and unobstructed lighting to the stovetop, solving the problem of traditional top-mounted or fixed lighting being easily blocked or having poor illumination angles. This greatly improves visual comfort and safety during cooking, achieving an intelligent user experience of "lighting up instantly upon startup, illuminating the stovetop".

[0035] 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 range hood having an oil mesh panel follow-up opening and closing structure, characterized in that, include: Chassis (10), air handling unit (20), fan assembly (30), movable panel (40), flip assembly (50) and smoke mesh assembly (60); The fan assembly (30) is disposed on the air handling unit (20); the air handling unit (20) is located above the chassis (10); the chassis (10) is provided with an oil fume adsorption chamber (11); an air inlet (12) is provided on the front side of the oil fume adsorption chamber (11); the flip assembly (50) can make the movable panel (40) flip relative to the front side of the chassis (10) to cover or open the air inlet (12); The smoke mesh assembly (60) is movably disposed in the oil fume adsorption chamber (11) and has a plurality of adsorption ports and / or adsorption slots; the upper side of the smoke mesh assembly (60) is connected to the movable panel (40); when the movable panel (40) is flipped outward and the air inlet (12) is opened, the smoke mesh assembly (60) can move with the movable panel (40) and be pulled out of the air inlet (12); when the movable panel (40) is flipped and the air inlet (12) is closed, the smoke mesh assembly (60) can move with the movable panel (40) and be inserted into the oil fume adsorption chamber (11).

2. The range hood having an oil net panel follow-up opening and closing structure according to claim 1, characterized in that: The chassis (10) is provided with arc-shaped guide grooves (13) on both sides; the smoke mesh assembly (60) is provided with smoke mesh connecting posts (61) on both sides; the smoke mesh connecting posts (61) are slidably installed in the arc-shaped guide grooves (13).

3. The range hood with an oil mesh panel that opens and closes automatically according to claim 2, characterized in that: The smoke mesh assembly (60) is provided with a smoke mesh hinge member (62) on the side near the movable panel (40) for hinged connection to the movable panel (40).

4. The range hood having an oil net panel follow-up opening / closing structure according to claim 3, characterized in that: The smoke mesh assembly (60) includes a smoke mesh mounting frame (63) and a smoke mesh body (64); the smoke mesh connecting column (61) and the smoke mesh hinge member (62) are disposed on the smoke mesh mounting frame (63); the adsorption port and / or adsorption groove are disposed on the smoke mesh body (64); the smoke mesh body (64) is detachably mounted on the smoke mesh mounting frame (63).

5. The range hood having an oil net panel follow-up opening / closing structure according to claim 1, characterized in that: Movable side plates (41) are provided on both sides of the movable panel (40); one side of the movable side plate (41) is fixed to the movable panel (40), and the other side can movably pass through the chassis (10) and extend into the fume adsorption chamber (11); the side of the movable side plate (41) extending into the fume adsorption chamber (11) is rotatably installed on the chassis (10); the flipping assembly (50) can drive the movable side plate (41) to rotate.

6. The range hood having an oil net panel follow-up opening / closing structure according to claim 5, characterized in that: The movable side plate (41) has a fan-shaped structure.

7. The range hood having an oil net panel follow-up opening / closing structure according to claim 5, characterized in that: The flipping assembly (50) includes a drive unit (51) and a plurality of drive links (52); the plurality of drive links (52) are hinged together, and at least one drive link (52) is connected to the output end of the drive unit (51), and at least one drive link (52) is connected to the movable side plate (41).

8. The cooking fume exhaust device with the oil net panel follow-up opening and closing structure as claimed in claim 1, wherein: The inner side of the movable panel (40) is provided with a lighting component (70); when the movable panel (40) is flipped outward and the air inlet (12) is opened, the lighting component (70) can illuminate downward.

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