Range hood

Abstract

The application discloses a range hood. The range hood comprises a cavity assembly, a mounting port and a fan system, wherein the cavity assembly is provided with a containing cavity, the fan system is arranged in the containing cavity, and a guide plate assembly is arranged in the mounting port. The guide plate assembly comprises a guide surface plate and a movement mechanism, the movement mechanism is connected with the guide surface plate, the movement mechanism comprises a motor and a connecting rod assembly, the motor drives the connecting rod assembly to move so as to drive the guide surface plate to move through the connecting rod assembly. In the range hood, the motor drives the guide surface plate to move through the connecting rod assembly, and the stability of the movement of the guide surface plate can be ensured.

Description

Technical Field

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

[0002] In related technologies, to address the issue that fixed smoke vents in range hoods cannot adapt to a wider range of smoke extraction scenarios, range hoods feature movable airflow guide panels. The movement of these panels alters the distribution of the smoke vents to suit different usage scenarios. Therefore, range hoods require a motion mechanism to drive the movement of the airflow guide panels, ensuring the stability of this movement. Summary of the Invention

[0003] The present invention provides a range hood.

[0004] The range hood provided in the embodiments of the present invention includes:

[0005] A cavity assembly, wherein the cavity assembly is provided with a receiving cavity and an installation port, and a fan system is installed inside the receiving cavity;

[0006] A deflector assembly is installed at the mounting port. The deflector assembly includes a deflector panel and a motion mechanism. The motion mechanism is connected to the deflector panel and includes a motor and a linkage assembly. The motor is connected to the deflector panel through the linkage assembly and is used to drive the linkage assembly to move so that the linkage assembly drives the deflector panel to move.

[0007] In the aforementioned range hood, the motor drives the air guide panel to move through the connecting rod assembly, which ensures the stability of the air guide panel's movement.

[0008] In some embodiments, the linkage assembly includes a first linkage group and a second linkage group, and the motion mechanism further includes a fixed plate. The first linkage group is rotatably connected to the flow guide panel and the fixed plate, and the second linkage group is rotatably connected to the flow guide panel and the fixed plate. The first linkage group is rotatably connected to the second linkage group.

[0009] The motor is used to drive the first linkage group to rotate, thereby driving the second linkage group and the guide panel to move.

[0010] In some embodiments, the motion mechanism includes a synchronizing element and two linkage assemblies. The synchronizing element connects the two linkage assemblies, which are respectively connected to both sides of the flow guide panel. The motor drives one of the linkage assemblies to move so that the synchronizing element drives the other linkage assembly to move.

[0011] In some embodiments, the linkage assembly is connected to one end of the flow guide panel, the motion mechanism further includes a roller disposed at the other end of the flow guide panel, the flow guide assembly includes a mounting portion with a slide rail, and the roller is connected to the slide rail.

[0012] In some embodiments, the flow guide panel includes a first panel and a second panel rotatably connected to each other, the linkage assembly is connected to one end of the first panel, the other end of the first panel is rotatably connected to one end of the second panel, and the other end of the second panel is provided with the roller.

[0013] In some embodiments, a first oil mesh is fixed on the mounting part, and a second oil mesh is provided on the second panel. The flow guide panel can switch between a first position and a second position. When the flow guide panel is in the first position, the first oil mesh and the second oil mesh have overlapping oil mesh portions. When the flow guide panel is in the second position, the first oil mesh and the second oil mesh are staggered.

[0014] In some embodiments, when the flow guide panel is in the first position, the first panel is parallel to the second panel, and when the flow guide panel is in the second position, the first panel and the second panel are inclined relative to each other.

[0015] In some embodiments, when the flow guide panel is in the second position, the second oil mesh is located diagonally above the first oil mesh.

[0016] In some embodiments, the deflector assembly further includes a baffle;

[0017] When the flow guide panel is in the first position, the first panel and the second panel are connected in a flat plate shape, and the baffle is housed in the receiving cavity;

[0018] When the flow guide panel is in the second position, the first panel and the second panel are connected in a V-shape, and the baffle is located in the gap between the first panel and the second panel.

[0019] In some embodiments, the baffle is connected to the first panel and is capable of moving with the movement of the first panel.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of a range hood according to an embodiment of the present invention;

[0024] Figure 3 This is an exploded view of the guide vane assembly according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the mounting section according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the motion mechanism according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the slide structure according to an embodiment of the present invention;

[0028] Figure 7 This is a cross-sectional schematic diagram of the slide rail according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the airflow of a range hood according to an embodiment of the present invention;

[0030] Figure 9 This is another schematic diagram of airflow in the range hood according to an embodiment of the present invention. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] This disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] Please see Figures 1 to 9 , Figure 1This is a schematic diagram of the structure of the range hood 100 according to an embodiment of the present invention; Figure 2 This is an exploded view of the range hood 100 according to an embodiment of the present invention; Figure 3 This is an exploded view of the guide vane assembly 18 according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the mounting part 20 according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the motion mechanism 32 according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the slide 42 according to an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the slide 42 according to an embodiment of the present invention; Figure 8 This is a schematic diagram of airflow in a range hood 100 according to an embodiment of the present invention; Figure 9 This is another schematic diagram of airflow in the range hood 100 according to an embodiment of the present invention.

[0037] The range hood 100 provided in this embodiment of the invention includes a cavity assembly 10 and a baffle assembly 18. The cavity assembly 10 has a receiving cavity 12 and a mounting port 14. A fan system 16 is installed in the receiving cavity 12, and the baffle assembly 18 is installed in the mounting port 14. The baffle assembly 18 includes a baffle panel 22 and a motion mechanism 32. The motion mechanism 32 is connected to the baffle panel 22 and includes a motor 34 and a connecting rod assembly 36. The motor 34 is connected to the baffle panel 22 through the connecting rod assembly 36, and the motor 34 drives the connecting rod assembly 36 to move, thereby causing the connecting rod assembly 36 to move the baffle panel 22.

[0038] In the aforementioned range hood, the motor 34 drives the flow guide panel 22 to move through the connecting rod assembly 36, which can ensure the stability of the flow guide panel 22's movement.

[0039] Specifically, see Figure 1 and Figure 2 The cavity assembly 10 may specifically include two different structures. One part may be a triangular prism with a mounting opening 14 on one side. The interior of the triangular prism is hollow, forming part of the receiving cavity 12. The other part may be a hollow regular square prism structure, which can also serve as part of the receiving cavity 12 and can be used to install the fan system 16. This system is positioned above the triangular prism and communicates with the hollow interior of the triangular prism. It is understood that in other embodiments, the cavity assembly 10 is not limited to the above structure and may have other structures, which are not specifically limited here.

[0040] See Figure 2 and Figure 3The deflector assembly 18 is installed at the mounting port 14. The deflector assembly 18 includes a deflector panel 22 and a motion mechanism 32. The motion mechanism 32 includes a motor 34 and a connecting rod assembly 36. The motor 34 is connected to the deflector panel 22 via the connecting rod assembly 36. The motor 34 drives the connecting rod assembly 36 to move, thereby causing the connecting rod assembly 36 to move the deflector panel 22, ensuring the stability of the deflector panel 22's movement. The deflector assembly 18 may also include a mounting portion 20. The motion mechanism 32 can be installed above the mounting portion 20 near the receiving cavity 12 and connected to the deflector panel 22. The motion mechanism 32 is connected to the deflector panel 22 and configured to drive the deflector panel 22 to move.

[0041] In some embodiments, the linkage assembly 36 includes a first linkage group 361 and a second linkage group 362, and the motion mechanism 32 further includes a fixed plate 54. The first linkage group 361 is rotatably connected to the flow guide panel 22 and the fixed plate 54, and the second linkage group 362 is rotatably connected to the flow guide panel 22 and the fixed plate 54. The first linkage group 361 is rotatably connected to the second linkage group 362. The motor 34 is used to drive the first linkage group 361 to rotate, thereby driving the second linkage group 362 and the flow guide panel 22 to move. This facilitates the movement of the flow guide panel 22.

[0042] Specifically, see Figure 3 and Figure 5 The linkage assembly 36 may include a first linkage group 361 and a second linkage group 362. The motion mechanism 32 also includes a fixed plate 54. The first linkage group 361 is rotatably connected to the guide panel 22 and the fixed plate 54, and the second linkage group 362 is rotatably connected to the guide panel 22 and the fixed plate 54. The first linkage group 361 is rotatably connected to the second linkage group 362. The motor 34 is used to drive the first linkage group 361 to rotate, thereby driving the second linkage group 362 and the guide panel 22 to move. Each linkage group may include two mutually hinged first rods 363 and second rods 364. The first rod 363 of the first linkage group 361 is connected to the motor 34, and the first rod 363 of the second linkage group 362 is rotatably connected to a fixed plate 54. The fixed plate 54 is fixed on the mounting part 20, and the second rods 364 of the first linkage group 361 and the second linkage group 362 are rotatably connected to one side of the guide panel 22. The first link 363 of the first linkage group 361 and the second link 364 of the second linkage group 362 are rotatably connected at the middle of the link. One end of the first link 363 of the first linkage group 361 is fixedly connected to the output shaft of the motor 34. In this way, the motor 34 can drive the first link 363 to rotate, causing the linkage assembly 36 to drive one side of the guide panel 22 to flip upward and outward, and at the same time as one side of the guide panel 22 flips upward and outward, it can also drive the other side of the guide panel 22 to flip upward and outward.

[0043] In some embodiments, the motion mechanism 32 includes a synchronizing element 40 and two linkage assemblies 36. The synchronizing element 40 connects the two linkage assemblies 36, which are respectively connected to both sides of the guide panel 22. The motor 34 drives one of the linkage assemblies 36 to move, thereby driving the synchronizing element 40 to drive the other linkage assembly 36 to move. In this way, the two linkage assemblies 36 can rotate synchronously.

[0044] Specifically, see Figure 3 and Figure 5 The synchronizing element 40 can be a long circular rod, and the two connecting rod assemblies 36 are located on the left and right sides above the guide panel 22, respectively. The first connecting rod group 361 and the second connecting rod group 362 are respectively disposed at both ends of the synchronizing element 40. The motion mechanism 32 may also include two fixing plates 54, which are disposed on the outside of the connecting rod assembly 36 relative to the synchronizing element 40 and are rotatably connected to the synchronizing element 40.

[0045] The first rods 363 of the two second linkage groups 362 are respectively fixedly connected to the two ends of the synchronizing member 40. The motor 34 is installed on the outside of one of the fixed plates 54. The output end of the motor 34 is connected to the first rod 363 of the first linkage group 361, which drives the first linkage group 361 to rotate, thereby driving the linkage assembly 36 on one side to move. Since the synchronizing member 40 is fixedly connected to the first rod 363 of the second linkage group 362, the synchronizing member 40 can transmit power to make the linkage assembly 36 on the opposite side rotate. By driving the linkage assembly 36 to move through the motor 34 and transmitting power through the synchronizing member 40, the linkage assembly 36 directly drives the guide panel 22 to flip upward and outward, so that the linkage assemblies 36 located on both sides above the guide panel 22 move synchronously. On the one hand, the two linkage assemblies 36 are respectively set on both sides above the guide panel 22 to ensure the stability of the position switching of the guide panel 22. On the other hand, the synchronizing member 40 connects the two linkage assemblies 36 to ensure the synchronicity of the movement of the two linkage assemblies 36. In one embodiment, a connecting plate 52 is rotatably connected to one side of the second rod 364, and the connecting plate 52 is fixed on the guide plate 22.

[0046] In some embodiments, the linkage assembly 36 is connected to one end of the flow guide panel 22, and the motion mechanism 32 further includes a roller 44, which is located at the other end of the flow guide panel 22. The mounting portion 20 is provided with a slide rail 42, and the roller 44 is connected to the slide rail 42. In this way, the stability of the movement of the flow guide panel 22 can be ensured.

[0047] Specifically, see Figure 3 , Figure 6 and Figure 7The mounting section 20 has a slide rail 42 on each of its left and right sides. A roller 44 is located on each of the left and right sides below the flow guide panel 22. The roller 44 can be mounted on the flow guide panel 22 via a bracket 45. The roller 44 can be housed in the slide rail 42 and rolls against the inner wall of the slide rail 42. The slide rail 42 guides the movement of the flow guide panel 22 via the roller 44. The bottom of the slide rail 42 has a long, narrow through-hole through which the bracket 45 can extend and connect with the roller 44. The slide rail 42 has a rear opening, which can be covered by a slide rail cover 56 to prevent oil fumes from entering the slide rail 42, thus ensuring smooth rolling of the roller 44.

[0048] In some embodiments, the flow guide panel 22 includes a first panel 28 and a second panel 30 rotatably connected to each other. A connecting rod assembly 36 is connected to one end of the first panel 28, and the other end of the first panel 28 is rotatably connected to one end of the second panel 30. A roller 44 is provided at the other end of the second panel 30. In this way, the movement of the flow guide panel 22 can be achieved through the rotatable connection of the two panels, and the stability of the movement of the second panel 30 can be ensured during movement.

[0049] Specifically, see Figure 3 The motion mechanism 32 can be installed above the mounting part 20 near the receiving cavity 12 and connected to the first panel 28. The motion mechanism 32 connected to the first panel 28 is configured to drive the first panel 28 to move, thereby moving the guide panel 22. In this way, switching between a single smoking port and a dual smoking port can be realized to meet smoking needs, improve negative pressure distribution, enhance smoking effect, and ensure smoking effect under different scenario requirements.

[0050] The linkage assembly 36 is connected to the upper end of the first panel 28, and the lower end of the first panel 28 is rotatably connected to the upper end of the second panel 30. The lower end of the second panel 30 is provided with a roller 44. By providing the roller 44 at the lower end of the second panel 30, when the motion mechanism 32 drives the first panel 28 to move, the lower end of the second panel 30, which is away from the motion mechanism 32, can also move relatively stably.

[0051] In other embodiments, the motion mechanism 32 may be connected to the second panel 30 to drive the second panel 30 to move, or connected to the first panel 28 and the second panel 30 to drive the first panel 28 and the second panel 30.

[0052] In some embodiments, a first oil mesh 24 is fixed on the mounting part 20, and a second oil mesh 26 is provided on the second panel 30. When the guide panel 22 is in the first position, the first oil mesh 24 and the second oil mesh 26 have overlapping oil mesh portions; when the guide panel 22 is in the second position, the first oil mesh 24 and the second oil mesh 26 are staggered. Thus, the range hood 100 can form two smoke inlets: a first smoke inlet formed by the first oil mesh 24 and a second smoke inlet formed by the second oil mesh 26. Furthermore, the range hood 100 can switch between a single smoke inlet and a dual smoke inlet to meet smoke extraction needs and ensure effective smoke extraction in different scenarios.

[0053] Specifically, see Figure 2 and Figure 3 The first oil mesh 24 is fixed to the mounting part 20, and the second oil mesh 26 is provided on the second panel 30. The guide panel 22 can switch between a first position and a second position. When the guide panel 22 is in the first position, the first oil mesh 24 and the second oil mesh 26 have overlapping oil mesh portions. Therefore, in the direction of airflow, the overlapping oil mesh portions of the first oil mesh 24 and the second oil mesh 26 can form a smoke inlet. When the guide panel 22 is in the second position, the first oil mesh 24 and the second oil mesh 26 are staggered. Therefore, in the direction of airflow, the first oil mesh 24 and the second oil mesh 26 can each form two smoke inlets: a first smoke inlet formed by the first oil mesh 24 and a second smoke inlet formed by the second oil mesh 26. Thus, the range hood 100 can switch between a single smoke inlet and a double smoke inlet to meet smoke extraction needs, improve negative pressure distribution, and enhance smoke extraction effect, ensuring smoke extraction effect under different scenario requirements. In operation, the airflow flows through the mesh openings of the first oil mesh 24 and the second oil mesh 26 to the fan system 16. This improves the smoke extraction effect of the range hood 100 and reduces the dispersion of cooking fumes. It is understood that in other embodiments, the cavity assembly 10 is not limited to the above structure and may be other structures, which are not specifically limited here.

[0054] In the illustrated embodiment, the area of ​​the first oil mesh 24 is larger than that of the second oil mesh 26, and the guide panel 22 is closer to the outside of the range hood 100 than the first oil mesh 24. When the guide panel 22 is in the first position, the second oil mesh 26 covers a portion of the first oil mesh 24, and the guide panel 22 obscures the rest of the first oil mesh 24; from the outside, only the second oil mesh 26 is visible. It is understood that in other embodiments, the first oil mesh 24 may also be closer to the outside of the range hood 100 than the guide panel 22; this is not specifically limited here.

[0055] During the switching process between the first and second positions of the flow guide panel 22, the first oil mesh 24 remains stationary, while the flow guide panel 22 drives the second oil mesh 26 to either offset from or overlap with the first oil mesh 24. It is understood that there can be multiple first positions; in the direction of airflow, any position of the flow guide panel 22 corresponding to an overlapping portion of the first oil mesh 24 and the second oil mesh 26 can be the first position. Similarly, there can be multiple second positions; that is, in the direction of airflow, any position of the flow guide panel 22 corresponding to an offset portion of the first oil mesh 24 and the second oil mesh 26 can be the second position.

[0056] exist Figure 1 In the embodiment shown, the area of ​​the first oil mesh 24 is larger than that of the second oil mesh 26. When the air guide panel 22 is in the first position, the overlapping part of the first oil mesh 24 and the second oil mesh 26 is the second oil mesh 26, forming a single oil mesh. This can meet the user's low air volume requirements or purify the air inside the kitchen through the mesh, acting as an air steward.

[0057] With the airflow panel 22 in the second position, the first oil mesh 24 and the second oil mesh 26 are staggered to form two smoke inlets. That is, when a large airflow or a tall cookware is needed, the second oil mesh 26 can be moved up and flipped outward. Part of the oil fumes that have not yet risen and diffused are quickly sucked away through the lower first oil mesh 24, and the remaining oil fumes that rise and diffuse are sucked away through the outward-flipped second oil mesh 26. The smoke extraction effect can be greatly improved by using dual suction.

[0058] In some embodiments, when the airflow guide panel 22 is in the first position, the first panel 28 is parallel to the second panel 30; when the airflow guide panel 22 is in the second position, the first panel 28 and the second panel 30 are tilted relative to each other. This facilitates switching between a single smoke inlet and a dual smoke inlet, meeting smoking needs, improving negative pressure distribution, and enhancing the smoking effect, thus ensuring effective smoking in different scenarios.

[0059] Specifically, see Figure 1 and Figure 2When the flow guide panel 22 is in the first position, the first panel 28 is parallel to the second panel 30. The first panel 28 and the second panel 30 can be connected along the same plane, and their adjacent sides are substantially closed. The outer edge of the flow guide panel 22, i.e., the first panel 28 and the second panel 30, can be sealed to the mounting portion 20. The second oil mesh 26 is disposed on the second panel 30, which is closer to the first oil mesh 24 than the first panel 28. In some embodiments, when the flow guide panel 22 is in the first position, the second panel 30 faces the first oil mesh 24. When the flow guide panel 22 is in the second position, the first panel 28 and the second panel 30 are inclined relative to each other. The first panel 28 and the second panel 30 are inclined relative to the mounting portion 20, and both are inclined away from the receiving cavity 12, forming an angle with an opening facing the receiving cavity 12. This angle is not 0° or 180°, but can be a right angle, an obtuse angle, or an angle of other sizes, which is not limited here. This facilitates switching between single and dual smoking ports, meets smoking needs, improves negative pressure distribution, enhances smoking effectiveness, and ensures smoking performance under different scenario requirements.

[0060] In some embodiments, when the guide panel 22 is in the second position, the second oil mesh 26 is located diagonally above the first oil mesh 24. In this way, on the one hand, the first oil mesh 24 and the second panel 30 can form a smoke-gathering part, which facilitates smoke gathering; on the other hand, the second oil mesh 26 being located diagonally above the first oil mesh 24 facilitates the collection of e-liquid gathered by the second panel 30.

[0061] Specifically, see Figure 2 and Figure 9 With the guide panel 22 in the second position, the second oil mesh 26 is located diagonally above the first oil mesh 24, and the angle α between the second panel 30 and the horizontal plane can be in the range of 0° < α < 12°. Thus, on the one hand, the first oil mesh 24 and the second panel 30 can form a smoke-gathering section, facilitating smoke collection; on the other hand, with the second oil mesh 26 located diagonally above the first oil mesh 24, the e-liquid accumulated on the second panel 30 will flow down the second panel 30 to the bottom, facilitating the collection of e-liquid from the second panel 30. In some embodiments, an oil storage box 48 can be provided below the mounting part 20 near the first oil mesh 24 for storing e-liquid.

[0062] In some embodiments, the mounting portion 20 has a through hole 47, through which the baffle 46 passes. This restricts the movement of the baffle 46 and improves its stability.

[0063] Specifically, see Figure 3 and Figure 4A through hole 47 is provided along the path of the upper baffle 46 of the mounting part 20 as it moves from the first position to the second position. The through hole 47 can be a strip-shaped through hole or other types of through holes, which are not limited here. The strip-shaped through hole can restrict the movement of the baffle 46 in the direction in which the through hole 47 is opened. When the baffle 46 is subjected to a force in the left and right direction, it can dissipate part of the force by abutting against the through hole 47, thereby improving the stability of the baffle 46.

[0064] In some embodiments, the deflector assembly 18 further includes a baffle 46. When the deflector panel 22 is in the first position, the first panel 28 and the second panel 30 are connected in a flat plate shape, and the baffle 46 is housed in the receiving cavity 12. When the deflector panel 22 is in the second position, the first panel 28 and the second panel 30 are connected in a V-shape, and the baffle 46 is located in the gap between the first panel 28 and the second panel 30. Thus, when the deflector panel 22 is in the second position, the baffle 46 is located in the gap between the first panel 28 and the second panel 30, thereby reducing the space area between the first panel 28 and the second panel 30, reducing the negative impact of this space on the smoking effect, and ensuring the smoking effect.

[0065] Specifically, see Figure 3 The flow guide plate assembly 18 includes two baffles 46, which are respectively disposed on the surface of the first panel 28 near the accommodating cavity 12 and located on the left and right sides of the surface. Since the baffles 46 are fixedly connected to the first panel 28, the baffles 46 move with the first panel 28 during the process of the flow guide panel 22 switching from the first position to the second position.

[0066] With the airflow guide panel 22 in the first position, the first panel 28 and the second panel 30 are connected in a flat plate shape. The flat airflow guide panel 22 can fit against the edge of the mounting part 20. The gap between the airflow guide panel 22 and the edge of the mounting part 20 is small, which has virtually no impact on the smoke extraction effect. The baffle 46 is housed in the receiving cavity 12 to prevent the user from seeing the baffle 46 from the outside.

[0067] With the guide panel 22 in the second position, the first panel 28 and the second panel 30 are connected in a V-shape, forming a triangular gap between them. This triangular gap connects the inside and outside of the range hood 100, and fumes may flow out from this gap, affecting the smoke extraction effect. By setting a baffle 46 in this gap, it can prevent the negative pressure at the inner oil mesh 50 on the inner side of the second oil mesh 26 from spreading through both sides, thus weakening the negative pressure at the second oil mesh 26 and reducing the smoke extraction effect. On the other hand, it also serves an aesthetic purpose by concealing the internal structure.

[0068] In some embodiments, the baffle 46 is connected to the first panel 28 and can move with the movement of the first panel 28. This eliminates the need for an additional mechanism to drive the baffle 46, reducing costs and simplifying the structure.

[0069] Specifically, the motion mechanism 32 is used to drive the first panel 28 to move. When the first panel 28 moves, it can drive the baffle 46 to move, so that when the flow guide panel 22 switches positions, the baffle 46 also moves synchronously with the flow guide panel 22. Therefore, there is no need to add an additional mechanism to drive the baffle 46, which can reduce costs and simplify the structure.

[0070] In some embodiments, the deflector assembly 18 further includes an operation panel 23 located above the deflector panel 22. The operation panel 23 can be connected to the motion mechanism 32 for controlling the motion mechanism 32, thereby facilitating the switching of the deflector panel 22 between a first position and a second position, and enabling switching between a single smoke inlet and a dual smoke inlet.

[0071] Specifically, see Figure 1 The operation panel 23 is located above the flow guide panel 22. The built-in control unit is connected to the motion mechanism 32, which can control the motion mechanism 32 to switch the flow guide panel 22 to the first position and the second position.

[0072] The range hood 100 mainly includes the following components: cavity assembly 10, fan system 16, baffle assembly 18, first oil filter 24 and second oil filter 26; the cavity assembly 10 mainly provides support and fixation for the fan system 16 and provides power; the fan system 16 is the power part of the entire range hood 100.

[0073] The main technical solutions of this invention may include:

[0074] 1. Single-to-Dual Suction Air Duct: When the airflow guide panel 22 is in the first position, the second oil filter 26 can function as a single oil filter, meeting the user's low airflow requirements or purifying the air inside the kitchen, acting as an air purifier. When a high airflow is needed or for tall cookware, the airflow guide panel 22 switches to the second position, and the second oil filter 26 moves upward and flips outward. The lower first oil filter 24 quickly draws away the smog that has not yet risen and diffused, while the remaining rising and diffused smog is drawn away by the outward-flipped second oil filter 26. This dual-suction system significantly improves the smoke extraction effect.

[0075] 2. Outward sliding oil mesh motion mechanism 32: The connecting rod assembly 36 and the synchronizing element 40 are used to provide the synchronization, driving force and rotation of the whole mechanism. The lower part is a roller 44 to ensure the stability of the oil mesh when moving up and down.

[0076] 3. The baffle 46 is fixed on the first panel 28. On the one hand, it can prevent the negative pressure at the inner oil mesh 50 from spreading through both sides, weakening the negative pressure at the second oil mesh 26 and reducing the smoking effect. On the other hand, it can also serve an aesthetic purpose by covering the internal mechanism.

[0077] See Figures 7-8 With the airflow guide panel 22 in the first position, cooking fumes or airflow in the kitchen can sequentially enter the fan system 16 through the first oil filter 24 and the second oil filter 26, where they are then exhausted by the fan system 16. This operating mode is suitable for scenarios with relatively small amounts of cooking fumes, and it can also act as the air inlet for an air purifier, periodically purifying the air inside the kitchen and maintaining its circulation. Figure 8 As shown, when the motion mechanism 32 is activated, the guide panel 22 switches from the first position to the second position. Oil fumes can enter the fan system 16 through the first oil mesh 24 and the second oil mesh 26, where they are expelled. The first oil mesh 24 is closer to the pot, resulting in a downward shift in negative pressure. After the oil fumes rise, they are directly drawn into the fan system 16. The remaining rising oil fumes are drawn into the fan system 16 through the second oil mesh 26 and the inner oil mesh 50. After the motion mechanism 32 is activated, a wide-angle negative pressure is created. The top-side dual-suction air intake layout significantly improves the smoke extraction effect. Furthermore, because the smoke inlet moves upward, the problem of the traditional hinged plate structure hitting the pot is avoided.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A range hood, characterized in that, include: A cavity assembly, wherein the cavity assembly is provided with a receiving cavity and an installation port, and a fan system is installed inside the receiving cavity; A deflector assembly is installed at the mounting port. The deflector assembly includes a deflector panel and a motion mechanism. The motion mechanism is connected to the deflector panel and includes a motor and a linkage assembly. The motor is connected to the deflector panel through the linkage assembly, and the motor is used to drive the linkage assembly to move so that the linkage assembly drives the deflector panel to move. The linkage assembly is connected to one end of the flow guide panel, the motion mechanism further includes a roller, the roller is disposed at the other end of the flow guide panel, the flow guide assembly includes a mounting part, the mounting part is provided with a slide rail, and the roller is connected to the slide rail; The flow guide panel includes a first panel and a second panel that are rotatably connected to each other. The linkage assembly is connected to one end of the first panel, the other end of the first panel is rotatably connected to one end of the second panel, and the other end of the second panel is provided with the roller. A first oil mesh is fixed on the mounting part, and a second oil mesh is provided on the second panel. The flow guide panel can switch between a first position and a second position. When the flow guide panel is in the first position, the first oil mesh and the second oil mesh have overlapping oil mesh portions. When the flow guide panel is in the second position, the first oil mesh and the second oil mesh are staggered.

2. The range hood according to claim 1, characterized in that, The linkage assembly includes a first linkage group and a second linkage group, and the motion mechanism further includes a fixed plate. The first linkage group is rotatably connected to the flow guide panel and the fixed plate, and the second linkage group is rotatably connected to the flow guide panel and the fixed plate. The first linkage group is rotatably connected to the second linkage group. The motor is used to drive the first linkage group to rotate, thereby driving the second linkage group and the guide panel to move.

3. The range hood according to claim 1, characterized in that, The motion mechanism includes a synchronizing element and two linkage assemblies. The synchronizing element connects the two linkage assemblies, which are respectively connected to both sides of the flow guide panel. The motor is used to drive one of the linkage assemblies to move so that the synchronizing element drives the other linkage assembly to move.

4. The range hood according to claim 1, characterized in that, When the flow guide panel is in the first position, the first panel is parallel to the second panel; when the flow guide panel is in the second position, the first panel and the second panel are inclined relative to each other.

5. The range hood according to claim 4, characterized in that, When the guide panel is in the second position, the second oil mesh is located diagonally above the first oil mesh.

6. The range hood according to claim 1, characterized in that, The deflector assembly also includes a baffle; When the flow guide panel is in the first position, the first panel and the second panel are connected in a flat plate shape, and the baffle is housed in the receiving cavity; When the flow guide panel is in the second position, the first panel and the second panel are connected in a V-shape, and the baffle is located in the gap between the first panel and the second panel.

7. The range hood according to claim 6, characterized in that, The baffle is connected to the first panel and can move with the movement of the first panel.

Images