Range hood

Abstract

The utility model relates to a kind of range hood, including smoke collecting hood, smoke collecting hood includes the vertically extending setting vertical air inlet cavity and the convex head portion that protrudes from the upper portion of vertical air inlet cavity to front, top air inlet is opened on the bottom wall of convex head portion, the lower portion front side of vertical air inlet cavity is equipped with side air inlet, further include: smoke baffle, can be driven by first drive mechanism and relatively smoke collecting hood moves to open and close air inlet, in the state that smoke baffle opens top air inlet, smoke baffle is located in the front side of top air inlet, and overall from the front side edge of top air inlet to front extends;Movable panel, can be driven by second drive mechanism and relatively smoke collecting hood moves to open and close air inlet, in the state that movable panel opens side air inlet, movable panel is located in the front upper side of side air inlet, and overall adheres to the front side of the fixed panel of vertical air inlet cavity.Superior in that: both can improve product overall delicacy, and can guarantee the oil fume suction effect of top, side double air inlet.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. Range hoods typically include top-mounted and side-mounted types. Top-mounted range hoods utilize the principle of rising hot air to extract naturally rising fumes produced during cooking. They are increasingly widely used due to their neat, lightweight design and small footprint. However, because their power source is farther from the stovetop, the suction power is reduced, and fumes cannot be completely removed. Side-mounted range hoods utilize vortex air pressure to absorb most of the fumes closer to the stovetop in an arc, reducing adverse health effects. Since the power source is closer to the stovetop, the suction power is not significantly reduced. However, because the fumes rise faster, they are unable to remove the small amount of fumes that escape upwards.

[0003] Therefore, to improve the fume extraction effect of range hoods, multi-inlet range hoods have emerged on the market. For example, Chinese utility model patent application CN201320250895.5 discloses a similar design. This type of range hood is a "seven-shaped" hood with top and side dual inlets, typically with the top inlet as the main inlet and the side inlet as the secondary inlet. Regarding the two inlets of top-and-side dual-inlet range hoods, most existing range hoods have exposed inlets, and very few have a rotating baffle structure for one of the inlets. The exposed inlets have certain drawbacks. First, the open inlets are aesthetically unappealing, lacking in product refinement and beauty, and are inconvenient to clean. In particular, with open inlets at both the top and bottom, the top inlet requires a larger fume-gathering area (i.e., greater front-to-back depth) to effectively extract fumes, which is clearly incompatible with kitchen cabinets and increases the risk of head bumping.

[0004] There are also such as Figure 7 As shown in the structure, both the top and side air inlets of the range hood are equipped with front- and rear-biased baffles. The negative pressure at the side air inlets pulls the fumes backward, but the downward-folding baffle at the side air inlets blocks some of the rising fumes. Especially when the airflow speed at the side air inlets is insufficient, the fumes will escape from the left and right sides. Simultaneously, when the downward-folding baffle is open, it blocks part of the top air inlet, preventing effective airflow to the area near the rear of the top air inlet, affecting the external airflow field. This also impacts the placement of the top air inlet and the size of the upward-folding baffle at it. Furthermore, the downward-folding baffle at the side air inlets is positioned directly in the path of the fumes, causing grease to condense quickly on it and easily drip onto the stovetop or into the pot. The opening and closing of the downward-folding baffle also easily causes food to spill onto the pot.

[0005] Therefore, how to rationally design the movement of the baffles with top and side dual suction and dual air inlets to improve the product's sophistication and fume extraction effect has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a range hood that can improve the overall refinement of the product and ensure the oil fume extraction effect of the top and side dual air inlets, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a range hood, including a smoke collection hood, the smoke collection hood including a vertically extending vertical air inlet cavity and a protruding head protruding forward from the upper part of the vertical air inlet cavity, the vertical air inlet cavity defining a vertically extending vertical air duct, the protruding head defining a horizontally extending horizontal air duct communicating with the vertical air duct, a top air inlet being opened on the bottom wall of the protruding head, a side air inlet being opened on the lower front side of the vertical air inlet cavity, and a panel above the side air inlet at the front of the vertical air inlet cavity being a fixed panel, and further including:

[0008] The smoke baffle can be moved relative to the smoke collection hood by the first drive mechanism to open and close the air inlet. When the smoke baffle opens the top air inlet, the smoke baffle is located in front of the top air inlet and extends forward from the front edge of the top air inlet as a whole.

[0009] The movable panel can be moved relative to the smoke hood by the second drive mechanism to open and close the air inlet. When the movable panel opens the side air inlet, the movable panel is located in front of and above the side air inlet and is generally attached to the front side of the fixed panel of the vertical air inlet cavity.

[0010] The phrase "abutting against the front side of the fixed panel of the vertical air intake cavity" can be understood as meaning that the distance between the movable panel and the fixed panel in the front-to-back direction is not large. Therefore, even with the movable panel's air intake open, the vertical air intake cavity of the range hood has a small front-to-back depth, meeting the design requirements of a slim range hood. The structural design of the movable panel at the bottom air intake, which can abut against the front side of the fixed panel, can correspondingly shorten the distance from the upper baffle to the wall (the wall where the range hood is installed) after it is opened, and the distance from the lowest point of the baffle to the countertop, thus significantly improving the user's cooking space and viewing angle.

[0011] As an improvement, the smoke baffle is rotatably connected to the smoke collection hood in a manner that allows it to deflect back and forth relative to the smoke collection hood. The smoke baffle has a first side adjacent to its axis of rotation relative to the smoke collection hood and a second side away from its axis of rotation relative to the smoke collection hood. When the top air inlet is open, the smoke baffle gradually tilts downwards from back to front, with the second side located in front of the first side. The smoke baffle opens by deflecting back and forth and gradually tilts downwards from back to front, with the second side located in front of the first side, forming a downwardly tilted smoke-gathering area that can more effectively capture and guide fumes into the top air inlet.

[0012] As an improvement, the first driving mechanism is a hinge motion mechanism located within the convex head. The power output end of this hinge motion mechanism is connected to the area on the back of the smoke baffle adjacent to its first side. By integrating the hinge motion mechanism within the convex head and connecting the power output end to the area on the back of the smoke baffle adjacent to its first side, smooth deflection of the smoke baffle is achieved, the motion trajectory is controllable, the structure is compact, and the reliability is high.

[0013] In order to more smoothly draw in and exhaust oil fumes through the top air inlet at the bottom of the convex head, the bottom wall of the convex head slopes downward from front to back.

[0014] Generally, the movable panel, which rests against the front of the fixed panel of the vertical air intake cavity, can be arranged parallel to the fixed panel or at a slight angle. As an improvement, to ensure the overall aesthetics of the front of the range hood when the movable panel is open and to minimize the front-to-back depth of the vertical air intake cavity, the movable panel is parallel to the fixed panel of the vertical air intake cavity when the side air inlet is open. This parallel and abutting arrangement of the movable and fixed panels also reduces airflow resistance and improves the airflow efficiency of the side air inlet; simultaneously, the parallel design ensures a clean appearance and avoids unnecessary turbulence or oil fume leakage.

[0015] As an improvement, the second drive mechanism includes a second drive motor and a four-bar linkage. The output shaft of the second drive motor is connected to the power output end of the four-bar linkage, which is connected to the back of the movable panel. The movable panel remains vertical throughout the movement driven by the second drive mechanism. The combination of the four-bar linkage and the drive motor provides a stable and smooth motion trajectory, ensuring the movable panel remains vertical during movement. It also makes opening and closing smoother, reduces impact and noise, and extends the lifespan of the drive mechanism. The four-bar linkage can be a planar mechanism formed by four rigid members connected by hinges. Specifically, the four-bar linkage ensures the movable panel remains vertical during movement, such as by using a parallelogram linkage structure.

[0016] As an improvement, a panel support is provided on the back of the movable panel near its lower edge. The panel support itself, or the panel support and the back of the movable panel, form a vertically extending, open-topped recess. When the movable panel is in the open air inlet state, at least the bottom edge of the fixed panel is embedded in the recess. When the movable panel is in the open air inlet state, it does not move forward significantly or flip over, but rather rests against and is parallel to the front of the fixed panel. This retractable opening shape minimizes the overall depth of the range hood's front, significantly optimizing the overall thickness and better meeting the aesthetic and space requirements of modern slim range hoods. Furthermore, the structural design of the above-mentioned range hood shape allows for effective catching of dripping oil from the movable panel without increasing the size of the oil cup, maintaining a clean appearance. In summary, the above structural design achieves an ultra-thin appearance while cleverly balancing cleanliness and convenience, comprehensively improving the product's practicality and aesthetics.

[0017] As an improvement, the panel support is an overall U-shaped structure with an open top. The panel support includes a front wall panel and a rear wall panel facing each other. The power output end of the drive mechanism is connected to the rear wall panel, and the back of the movable panel is connected to the front wall panel. By using a U-shaped panel support, the drive mechanism is connected to the rear wall panel, and the movable panel is connected to the front wall panel, achieving indirect power transmission, reducing the impact of direct stress on the panel, and improving durability and smoothness of movement. The U-shaped structure is simple, reliable, and easy to manufacture and assemble. It is conceivable that the panel support could also be an L-shaped or Z-shaped panel structure.

[0018] As an improvement, the top air inlet at the bottom of the convex head extends to the point where the bottom wall of the convex head connects with the vertical air inlet cavity. This design positions the bottom of the top air inlet close to the top vertical position of the side air inlet. As the fumes rise along the front of the vertical air inlet cavity, they naturally enter the top air inlet. Simultaneously, the smoke baffle expands the negative pressure of the top air inlet outwards, capturing and drawing away some of the diffused fumes. Extending the top air inlet to the junction of the bottom wall of the convex head and the vertical air inlet cavity expands the air intake area, ensuring that fumes can be effectively drawn in from both the front and top, thus improving the smoke collection efficiency of the top air inlet.

[0019] As an improvement, the bottom of the vertical air inlet cavity is also provided with an oil cup for receiving the oil dripping from above.

[0020] Compared with existing technologies, the advantages of this utility model are as follows: The range hood of this utility model features a baffle plate at the top air inlet that extends forward when opened, effectively guiding fumes into the hood and preventing interference with the airflow. The side air inlets utilize movable panels that can be attached to the front of the fixed panel, significantly reducing the overall depth of the unit and achieving a slim design. This avoids the risk of head bumps and improves the coordination with kitchen cabinets. This structure ensures that the side air inlets do not obstruct the upward path of fumes when open, reducing the risk of grease condensation and dripping. It also optimizes the synergistic smoke extraction effect of the dual air inlets, ensuring efficient fume extraction. The overall solution enhances the product's aesthetics and ease of cleaning while significantly expanding the user's cooking space and field of vision, achieving a balance between aesthetics and functionality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model. The movable panel is in the closed side air inlet state, and the smoke baffle is in the open top air inlet state.

[0022] Figure 2 This is a cross-sectional view of the range hood of this utility model embodiment, cut along the front-to-back direction. The movable panel is in the closed air inlet state, and the smoke baffle is in the open top air inlet state.

[0023] Figure 3 This is a three-dimensional structural diagram of the fixed panel, movable panel, and panel support of the range hood according to an embodiment of the present utility model.

[0024] Figure 4 This is a sectional perspective view of the fixed panel, movable panel, and panel support of the range hood according to an embodiment of the present utility model.

[0025] Figure 5 This is a cross-sectional view of the movable panel and panel support in the mating state according to an embodiment of the present utility model.

[0026] Figure 6 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model. The movable panel is in the open air inlet state, and the smoke baffle is in the open top air inlet state.

[0027] Figure 7 This is a left view of a conventional range hood. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0030] Figures 1-6 This illustration shows a preferred embodiment of the range hood of the present invention. It mainly includes a smoke collection hood 1, a smoke baffle 151, a movable panel 13, and a corresponding drive mechanism. The smoke collection hood 1 is typically formed by stamping or welding of a metal sheet, and includes a vertical air inlet cavity 10a and a protruding head 10b. The vertical air inlet cavity 10a extends vertically, defining a vertical air duct 101 inside to guide the oil fumes upward. The protruding head 10b protrudes forward from the upper part of the vertical air inlet cavity 10a, defining a horizontal air duct 102 inside, which communicates with the vertical air duct 101, together forming the air duct system of the range hood. A top air inlet 15 is provided on the bottom wall of the protruding head 10b for drawing in oil fumes from the top; a side air inlet 10 is provided on the lower front side of the vertical air inlet cavity 10a for drawing in oil fumes from the side. The front panel of the vertical air inlet cavity, located above the side air inlet 10, is a fixed panel 12. This fixed panel 12 is usually fixedly installed and cannot be moved.

[0031] See Figure 2The smoke baffle 151 is used to open and close the top air inlet 15, and it is moved relative to the smoke hood 1 by being driven by the first drive mechanism 3. In one specific embodiment, the smoke baffle 151 is rotatably connected to the smoke hood 1 in a manner that allows it to deflect back and forth relative to the smoke hood 1. For example, the smoke baffle 151 can be connected to the front or top of the protruding head 10b by a hinge or pivot. The smoke baffle 151 has a first side adjacent to its axis of rotation relative to the smoke hood 1 and a second side away from the axis of rotation. When the top air inlet 15 is open, the smoke baffle 151 gradually tilts downward from back to front, and the second side is located in front of the first side. This tilting design forms a smoke-gathering area extending forward and downward, which can more effectively capture and guide the fumes into the top air inlet 15, improving smoke extraction efficiency. The first driving mechanism 3 is specifically a hinge motion mechanism located within the protruding head 10b. This hinge motion mechanism may include components such as a motor, gear set, and connecting rod. Its power output end is connected to the area adjacent to the first side of the back of the smoke baffle 151, thereby realizing the smooth deflection movement of the smoke baffle 151. The hinge motion mechanism is integrated inside the protruding head 10b, has a compact structure, controllable motion trajectory, and high reliability. The specific structure and working process of the aforementioned hinge motion mechanism are existing technologies and will not be described in detail.

[0032] To optimize the air intake effect of the top air inlet 15, the bottom wall of the protruding head 10b slopes downwards from front to back. This sloped design helps oil flow to the rear, preventing oil stains from accumulating at the edge of the top air inlet 15, while allowing oil fumes to enter the top air inlet 15 more smoothly. The top air inlet 15 extends to the position where the bottom wall of the protruding head 10b connects with the vertical air intake cavity 10a, thereby expanding the air intake area and ensuring that oil fumes can be effectively drawn in from both the front and the top, improving the smoke collection efficiency of the top air inlet 15. When the smoke baffle 151 is open, the smoke baffle 151 is located on the front side of the top air inlet 15 and extends forward from the front edge of the top air inlet 15, forming an expanded negative pressure zone, further improving the smoke collection effect.

[0033] The movable panel 13 is used to open and close the side air inlet 10, and it moves relative to the smoke hood 1 by being driven by the second drive mechanism 4. When the side air inlet 10 is open, the movable panel 13 is located above and in front of the side air inlet 10, and is generally abutted against the front side of the fixed panel 12 of the vertical air inlet cavity 10a. Here, "abutted" means that the distance between the movable panel 13 and the fixed panel 12 in the front-back direction is small; they are usually arranged parallel to each other to reduce the overall front-back depth of the range hood and achieve a thin design. This abutting method avoids the movable panel 13 from shifting or flipping forward significantly, thereby reducing the overall thickness of the unit and optimizing the user's cooking space and viewing angle. The movable panel 13 remains vertical throughout its movement, which is achieved through the specific design of the second drive mechanism 4.

[0034] The second drive mechanism 4 includes a second drive motor 41 and a four-bar linkage 42. The second drive motor 41 is, for example, a stepper motor or a servo motor, and its output shaft is connected to the power output end of the four-bar linkage 42. The four-bar linkage 42 can adopt a parallelogram linkage structure, formed by four rigid links connected by hinges, ensuring that the movable panel 13 remains vertical during movement. The power output end of the four-bar linkage 42 is connected to the back of the movable panel 13, which can be achieved through a connector or bracket. During the movement of the movable panel 13 by the second drive mechanism 4, the movable panel 13 moves parallel to the fixed panel 12. When open, it rests against the front of the fixed panel 12, and when closed, it covers the side air inlet 10. The movement is smooth and the noise is low.

[0035] In some embodiments, the fixed panel 12 extends vertically, and the movable panel 13 is also a vertically extending flat plate structure. When the side air inlet 10 is closed, the front wall surface of the movable panel 13 and the front wall surface of the fixed panel 12 are located on the same vertical plane, forming a flat appearance that is easy to clean.

[0036] See Figures 3-5 A panel support 14 is provided on the back of the movable panel 13 near its lower edge to enhance structural strength and connect the drive mechanism. The panel support 14 is a U-shaped structure with an open top. The panel support 14 includes a front wall panel 141 and a rear wall panel 142 facing each other. The bottom of the front wall panel 141 and the bottom of the rear wall panel 142 are connected by a bottom wall panel 143, forming a roughly U-shaped cross-section. The lowest point of the bottom wall panel 143 is higher than the bottom edge of the movable panel 13, thus forming an oil collection groove on the back of the movable panel 13. The bottom wall panel 143 slopes downward from front to back, and its slope angle (the slope angle relative to the horizontal direction) is designed to be 5° to 35° to facilitate the flow of oil to the rear under the action of gravity. An oil drain hole 1401 is formed at the position where the rear edge of the bottom wall panel 143 meets the bottom edge of the rear wall panel 142. At least two oil drain holes 1401 are arranged sequentially in the left and right direction to drain the collected oil. In addition, an air vent 1402 is provided at the same location where the bottom wall panel 143 and the rear wall panel 142 meet. The air vent 1402 extends upward from front to back, and the angle between the extension direction of the air vent 1402 and the horizontal direction is approximately 30°. Multiple air vents 1402 are arranged in the left-right direction to disperse airflow and enhance the structural strength of the panel support 14.

[0037] The power output end of the four-bar linkage 42 (generally two adjacent hinge points on the four-bar linkage 42) is connected to the rear wall panel 142, and the back of the movable panel 13 is connected to the front wall panel 141, for example, by screws or welding. A vertically extending, open-topped relief groove 140 is formed between the panel bracket 14 itself or between the panel bracket 14 and the back of the movable panel 13. When the movable panel 13 has its side air inlet 10 open, at least the bottom edge of the fixed panel 12 is embedded in the relief groove 140. This design allows the movable panel 13 to fit snugly against the fixed panel 12 when open, while the relief groove 140 can catch dripping oil from above, preventing oil spillage and maintaining a clean appearance. The U-shaped structure of the panel bracket 14 is simple, reliable, and easy to manufacture and assemble, but other forms, such as L-shaped or Z-shaped panel structures, can also be considered, as long as they achieve similar functionality.

[0038] In another alternative embodiment, the placement of the movable panel 13 can be slightly adjusted. For example, the movable panel 13 can maintain a small angle with the fixed panel 12. However, parallel placement is preferred to minimize depth and optimize air intake efficiency. Similarly, the deflection angle of the smoke baffle 151 can be adjusted according to actual needs. For example, in the open state, the angle between the smoke baffle 151 and the horizontal plane can vary from 10° to 30° to balance smoke collection effect and space occupation.

[0039] The bottom of the vertical air inlet cavity 10a is also equipped with an oil cup 11 to collect oil dripping from above. The oil cup 11 is detachably installed at the bottom of the cavity for easy regular cleaning. Whether the side air inlet 10 is open or closed, the oil leakage hole 1401 on the panel bracket 14 always projects vertically within the open area of ​​the oil cup 11, ensuring that the oil is directly collected into the oil cup 11 and preventing leakage. Overall, this range hood achieves efficient smoke extraction and a slim profile through the coordinated design of the top air inlet 15 and the side air inlet 10, combined with the movement of the baffle plate 151 and the movable panel 13. In terms of installation, the range hood can be embedded in a cabinet or wall-mounted, harmonizing with the kitchen environment.

[0040] See Figure 2 A baffle 2 is installed inside the smoke hood 1 near the side air inlet 10. The baffle 2 includes a first baffle section 21 and a second baffle section 22 connected sequentially from front to back. The first baffle section 21 is located below the panel support 14, and its angle with the horizontal direction is approximately 15°; the second baffle section 22 is located below and behind the panel support 14, and its angle with the horizontal direction is approximately 30°. The angle between the first baffle section 21 and the horizontal direction is smaller than the angle between the second baffle section 22 and the horizontal direction. This segmented design optimizes the airflow path.

[0041] See Figure 3 The front wall panel 141 of the panel bracket 14 has protruding edges 1411 on its left and right sides, respectively, that protrude to the left and right sides of the rear wall panel 142. Each protruding edge 1411 has vibration damping pads 1412 on its upper and lower sides. The vibration damping pads 1412 are made of rubber and are fixed to the corresponding mounting holes on the protruding edge 1411 by embedding. When the movable panel 13 is closed at the side air inlet 10, the bottom wall panel 143 and rear wall panel 142 of the panel bracket 14 extend into the smoke hood 1 through the side air inlet 10. The protruding edges 1411 of the front wall panel 141 abut against the side panels on the left and right sides of the air inlet of the smoke hood 1 via the vibration damping pads 1412, effectively reducing vibration and noise.

[0042] After the lower air inlet 10 is opened on the movable panel 13, the negative pressure generated by the side air inlet 10 will pull the fumes backward. At the same time, the sliding movable plate is close to the front fixed panel 12 of the vertical air inlet cavity 10a, and there is no obstruction to the path of the fumes pulled backward, so the fumes will rise. Meanwhile, the bottom of the top air inlet 15 is close to the top vertical position of the side air inlet 10. After the fumes rise along the front panel of the vertical air inlet cavity 10a, they will enter the top air inlet 15. At the same time, the baffle 151 can expand the negative pressure of the top air inlet 15 outward, and gather and suck away some of the diffused fumes. The setting of the side air inlet 10 can correspondingly shorten the distance from the baffle 151 to the wall after it is opened and the distance from the lowest point of the baffle 151 to the stove surface, which greatly improves the user's cooking space and cooking view. In the overall external airflow field, the side air inlet 10 and the top air inlet 15 complement each other, which can effectively improve the overall smoke extraction effect of the range hood.

[0043] The range hood (such as the opening and closing control of the movable panel, the air volume control of the centrifugal fan, etc.) can be controlled by a voice module. It is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives the user's instructions, and the voice parsing module parses the instructions. Based on the parsed instructions, the controller controls the range hood to perform the corresponding operations, thereby realizing the intelligent control of the range hood and improving the user experience.

Claims

1. A range hood, comprising a smoke collection hood (1), the smoke collection hood (1) comprising a vertically extending vertical air inlet cavity (10a) and a protruding head (10b) protruding forward from the upper part of the vertical air inlet cavity (10a), the vertical air inlet cavity (10a) defining a vertically extending vertical air duct (101), the protruding head (10b) defining a horizontally extending horizontal air duct (102) communicating with the vertical air duct (101), a top air inlet (15) being formed on the bottom wall of the protruding head (10b), a side air inlet (10) being formed on the lower front side of the vertical air inlet cavity (10a), and a fixed panel (12) being formed on the front part of the vertical air inlet cavity (10a) above the side air inlet (10), characterized in that... Also includes: The smoke baffle (151) can be driven by the first drive mechanism (3) to move relative to the smoke collection hood (1) to open and close the air inlet. When the smoke baffle (151) opens the top air inlet (15), the smoke baffle (151) is located in front of the top air inlet (15) and extends forward from the front edge of the top air inlet (15) in general. The movable panel (13) can be driven by the second drive mechanism (4) to move relative to the smoke hood (1) to open and close the air inlet. When the movable panel (13) opens the side air inlet (10), the movable panel (13) is located in front of and above the side air inlet (10) and is generally attached to the front side of the fixed panel (12) of the vertical air inlet cavity (10a).

2. The range hood according to claim 1, characterized in that: The smoke baffle (151) is rotatably connected to the smoke hood (1) in a manner that allows it to deflect back and forth relative to the smoke hood (1). The smoke baffle (151) has a first side adjacent to its axis of rotation relative to the smoke hood (1) and a second side away from its axis of rotation relative to the smoke hood (1). When the top air inlet (15) of the smoke baffle (151) is open, the smoke baffle (151) gradually tilts downward from back to front, and the second side is located in front of the first side.

3. The range hood according to claim 2, characterized in that: The first drive mechanism (3) is a hinge motion mechanism located in the protruding head (10b), and the power output end of the hinge motion mechanism is connected to the area of ​​the back of the smoke baffle (151) adjacent to its first side.

4. The range hood according to claim 1, characterized in that: The bottom wall of the convex head (10b) slopes downward from front to back.

5. The range hood according to any one of claims 1 to 4, characterized in that: With the side air inlet (10) open by the movable panel (13), the movable panel (13) is parallel to the fixed panel (12) of the vertical air inlet cavity (10a).

6. The range hood according to claim 5, characterized in that: The second drive mechanism (4) includes a second drive motor (41) and a four-bar linkage (42). The output shaft of the second drive motor (41) is connected to the power output end of the four-bar linkage (42). The power output end of the four-bar linkage (42) is connected to the back of the movable panel (13). The movable panel (13) remains vertical throughout the process of being driven by the second drive mechanism (4).

7. The range hood according to claim 6, characterized in that: A panel bracket (14) is provided on the back of the movable panel (13) near the lower edge. A vertically extending and open-top relief groove (140) is formed between the panel bracket (14) itself or between the panel bracket (14) and the back of the movable panel (13). When the air inlet of the movable panel (13) is open, at least the bottom edge of the fixed panel (12) is embedded in the relief groove (140).

8. The range hood according to claim 7, characterized in that: The panel support (14) is a U-shaped structure with an open top. The panel support (14) includes a front wall panel (141) and a rear wall panel (142) that are opposite to each other. The power output end of the drive mechanism is connected to the rear wall panel (142). The back of the movable panel (13) is connected to the front wall panel (141).

9. The range hood according to claim 5, characterized in that: The top air inlet (15) at the bottom of the convex head (10b) extends to the position where the bottom wall of the convex head (10b) connects with the vertical air inlet cavity (10a).

10. The range hood according to any one of claims 1 to 4, characterized in that: The bottom of the vertical air inlet cavity (10a) is also provided with an oil cup (11) for receiving the oil dripping from above.

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