A concealed range hood and control method

Abstract

The present application relates to the technical field of kitchen appliances, and particularly relates to a hidden range hood and a control method. The hidden range hood comprises a smoke gathering mechanism, the smoke gathering mechanism comprises a smoke gathering cavity body and a movable cavity, an air inlet is formed on the movable cavity, the movable cavity comprises a first position in which the movable cavity is accommodated in the smoke gathering cavity body and a second position in which the movable cavity is extended out of the smoke gathering cavity body, the air inlet moves forward and downward simultaneously in the process that the movable cavity is switched from the first position to the second position, and the air inlet is in a lower and forward position when the movable cavity is in the second position, so that the air inlet is closer to a smoke source, and the oil fume suction effect of the hidden range hood in a working state is effectively improved.

Description

Technical Field

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

[0002] Existing concealed range hoods typically include a main unit and a smoke collection mechanism. The main unit is located at the top of the smoke collection mechanism and is connected to it. The smoke collection mechanism has an air inlet. The main unit can generate negative pressure, which allows the oil fumes outside the concealed range hood to pass through the air inlet, the inside of the smoke collection mechanism, and the main unit in sequence. The filtered gas is finally discharged from the air outlet of the main unit.

[0003] The smoke collection mechanism includes a smoke collection chamber body and a movable chamber. The air inlet is located on the movable chamber. The movable chamber and the smoke collection chamber body together form the smoke collection space. The movable chamber can switch between a first position where it is housed in the smoke collection chamber body and a second position where it extends downwards from the smoke collection chamber body. When the movable chamber is in the second position, the air inlet can get closer to the oil fumes in the vertical direction. Although this can improve the absorption effect of the hidden range hood on oil fumes to a certain extent, the oil fume absorption effect of the existing hidden range hood is still slightly poor when it is in operation.

[0004] Therefore, there is an urgent need to design a new concealed range hood and control method to solve the problem of poor smoke extraction effect of concealed range hoods. Summary of the Invention

[0005] One objective of this invention is to provide a concealed range hood that can achieve rapid and effective absorption of cooking fumes.

[0006] To achieve this objective, the present invention adopts the following technical solution: A concealed smoke hood includes a smoke collection mechanism, which comprises: The smoke collection chamber body; and The movable cavity has an air inlet. The movable cavity includes a first position that is housed in the smoke collection chamber body and a second position that extends out of the smoke collection chamber body. During the process of the movable cavity switching from the first position to the second position, the air inlet moves forward and downward at the same time.

[0007] As an alternative, concealed range hoods also include: The image detection device is capable of acquiring first location information of the heat source and second location information of the air inlet; and The first drive mechanism is configured to adjust the position of the air inlet along the front-back direction according to the first position information and the second position information.

[0008] As an optional solution, the concealed smoke hood also includes a first drive mechanism. The movable cavity includes a movable cavity body, a first connector, and a second connector. The second connector is located behind the first connector. The upper ends of the first connector and the upper ends of the second connector are rotatably connected to the smoke-gathering cavity body. The lower ends of the first connector and the lower ends of the second connector are rotatably connected to the movable cavity body. The first drive mechanism is rotatably connected to the smoke-gathering cavity body and the movable cavity respectively.

[0009] As an optional solution, the position where the upper end of the first connector is rotatably connected to the smoke collection chamber body is the first connection position P, the position where the lower end of the first connector is rotatably connected to the movable chamber body is the second connection position Q, the position where the upper end of the second connector is rotatably connected to the smoke collection chamber body is the third connection position M, and the position where the lower end of the second connector is rotatably connected to the movable chamber body is the fourth connection position N, wherein PQNM form a parallelogram structure.

[0010] As an alternative, the first connecting member is a connecting rod or a connecting plate extending in the left-right direction; and / or The second connecting component is a connecting rod or a connecting plate extending in the left-right direction.

[0011] As an alternative, the first connecting member is a first connecting plate. When the movable cavity is in the second position, the first connecting plate protrudes to the rear and a clearance space is formed on the front side of the first connecting plate.

[0012] As an optional solution, the first connecting plate includes a first drainage section, which is inclined downwards from front to back when the movable cavity is in the first position; and / or The first connecting plate includes a second drainage section. When the movable cavity is in the second position, the second drainage section is inclined downward from front to back.

[0013] As an optional solution, the second drainage section has an open receiving groove, with the open side facing upwards when the movable cavity is in the second position; and / or The smoke collection mechanism also includes a first sealing assembly. When the movable cavity is in the first position, the first sealing assembly is sandwiched between the first connecting plate and the smoke collection cavity body. The second drainage section, the first sealing assembly, and at least part of the main unit's air inlet are arranged sequentially from front to back; and / or The smoke collection mechanism includes a first sealing element, and the second drainage section includes a free end. The first sealing element is always sandwiched between the smoke collection chamber body and the free end; and / or The smoke collection mechanism includes a shielding component, and the second drainage section includes a free end. The shielding component is disposed inside the smoke collection chamber body and located above the gap between the smoke collection chamber body and the free end; and / or The first connecting plate includes a third diversion section, and the second diversion section, the third diversion section and the first diversion section are connected in sequence. When the movable cavity is in the second position, the third diversion section protrudes backward and can divert the oil at the opening to the interior of the smoke collection cavity body.

[0014] As an optional solution, the smoke collection mechanism also includes a flap, which is movably connected to the movable cavity. A first drive mechanism can simultaneously move the air inlet forward and downward, opening the air inlet with the flap; or, the first drive mechanism can simultaneously move the air inlet upward and backward, blocking the air inlet with the flap. The smoke collection mechanism also includes a second drive mechanism. The flap is movably connected to the movable cavity, and the second drive mechanism can independently drive the flap to open or block the air inlet; or As the movable cavity switches from the first position to the second position, the internal space of the movable cavity increases.

[0015] Another objective of this invention is to provide a control method that enables concealed range hoods to quickly and effectively absorb cooking fumes.

[0016] To achieve this objective, the present invention adopts the following technical solution: A control method, applied to the above-mentioned concealed range hood, includes: S1: Obtain the first location information of the heat source and the second location information of the air inlet; and S2: Adjust the position of the air inlet along the front-back direction according to the first position information and the second position information, so as to adjust the relative position of the air inlet and the heat source along the front-back direction.

[0017] As an optional solution, the concealed range hood includes an image detection device that can obtain image information of the heat source and the air inlet. The image information includes a first reference position J, a second reference position Z of the heat source, and a third reference position Y of the air inlet. The first position information is the first distance L1 between the first reference position J and the second reference position Z along the front-back direction, and the second position information is the second distance L2 between the first reference position J and the third reference position Y along the front-back direction. The steps of S2 include: S21: Compare the first distance L1 with the second distance L2; and S22: Adjust the position of the air inlet along the front and rear directions according to the comparison results.

[0018] As an optional solution, steps S22 include: S221: Compare the difference W between the first distance L1 and the second distance L2 with the first preset value T, wherein the first preset value T > 0: If W > T, control the movable cavity to extend to the maximum extent; if W ≤ T, then proceed to S222; S222: Determine whether the first distance L1 is greater than or equal to the second distance L2: if yes, proceed to S223; if no, proceed to S224. S223: Compare the difference W between the first distance L1 and the second distance L2 with the second preset value G, wherein the first preset value T > the second preset value G > 0: If W > G, drive the movable cavity to move forward and proceed to S225; if W ≤ G, then proceed to S225. S224: Compare the difference W between the first distance L1 and the second distance L2 with -G, where -T < -G ​​< 0: If W < -G, drive the movable cavity to move backward and proceed to S225; if W ≥ -G, then proceed to S225. S225: Determine if -G≤W≤G is satisfied: If yes, proceed to S226; otherwise, return to S222. S226: Control the active cavity to maintain the current state and return to S221.

[0019] The beneficial effects of this invention are: The concealed range hood provided by this invention includes a smoke-gathering mechanism, which includes a smoke-gathering chamber body and a movable cavity. The movable cavity has an air inlet and includes a first position housed in the smoke-gathering chamber body and a second position extending out of the smoke-gathering chamber body. During the process of the movable cavity switching from the first position to the second position, the air inlet moves forward and downward simultaneously. When the movable cavity is in the second position, the air inlet is in a lower and forward position, making the air inlet closer to the smoke source and effectively improving the smoke extraction effect of the concealed range hood in working state.

[0020] In addition, during the process of the movable cavity switching from the first position to the second position, the air inlet moves forward and downward simultaneously, which enables the air inlet to quickly reach a lower and forward position, thus achieving a fast and better absorption effect of cooking fumes by the concealed range hood.

[0021] The control method provided by this invention includes: acquiring first position information of the heat source and second position information of the air inlet; adjusting the position of the air inlet along the front-back direction according to the first position information and the second position information, so as to adjust the relative position of the air inlet and the heat source along the front-back direction, so that the air inlet can be closer to the heat source along the front-back direction, so that the movable cavity can better adapt to the position of the heat source, so that the air inlet is always directly above the heat source, maximizing the collection of oil fumes, further improving the smoke exhaust effect of the concealed range hood, achieving a better absorption effect of the air inlet for oil fumes, and allowing kitchen oil fumes to be treated more effectively. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the concealed range hood in the first position according to Embodiment 1 of the present invention; Figure 2This is a schematic diagram of the cabinet and the hidden range hood in the first position provided in Embodiment 1 of the present invention; Figure 3 This is a structural schematic diagram of the cabinet and the hidden range hood in the second position provided in Embodiment 1 of the present invention; Figure 4 This is a cross-sectional view of the concealed range hood in the first position according to Embodiment 1 of the present invention; Figure 5 This is a first partial enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 6 This is a cross-sectional view of the concealed range hood in the second position according to Embodiment 1 of the present invention; Figure 7 This is a second partial enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 8 This is a third enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 9 This is a partial structural schematic diagram of the concealed range hood provided in Embodiment 1 of the present invention; Figure 10 This is a fourth enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 11 This is a schematic diagram of the first structure of the concealed range hood provided in Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of the concealed range hood provided in Embodiment 2 of the present invention; Figure 13 This is a partially enlarged view of the concealed range hood provided in Embodiment 2 of the present invention; Figure 14 This is a schematic diagram of the first structure of the concealed range hood provided in Embodiment 3 of the present invention; Figure 15 This is a schematic diagram of the second structure of the concealed range hood provided in Embodiment 3 of the present invention; Figure 16 This is a schematic diagram of the third structure of the concealed range hood provided in Embodiment 3 of the present invention; Figure 17 This is a schematic diagram of the first structure of the concealed range hood provided in Embodiment 4 of the present invention; Figure 18 This is a schematic diagram of the second structure of the concealed range hood provided in Embodiment 4 of the present invention; Figure 19 This is a schematic diagram of the concealed range hood provided in Embodiment 5 of the present invention; Figure 20 This is a schematic diagram of the structure of the first connector provided in Embodiment 5 of the present invention; Figure 21 This is a schematic diagram of the first structure of the concealed range hood provided in Embodiment Six of the present invention; Figure 22 This is a schematic diagram of the second structure of the concealed range hood provided in Embodiment Six of the present invention; Figure 23 This is a schematic diagram of the concealed range hood provided in Embodiment 7 of the present invention; Figure 24 This is a schematic diagram of the concealed range hood provided in Embodiment 8 of the present invention; Figure 25 This is a flowchart of the control method provided in Embodiment Nine of the present invention; Figure 26 This is a schematic diagram of the first structure of the concealed range hood provided in Embodiment 10 of the present invention; Figure 27 This is a schematic diagram of the second structure of the concealed range hood provided in Embodiment 10 of the present invention; Figure 28 This is the first type of image information of the heat source and air inlet provided in Embodiment 10 of the present invention; Figure 29 This is the second type of image information of the heat source and air inlet provided in Embodiment 10 of the present invention; Figure 30 This is a flowchart of the control method provided in Embodiment 10 of the present invention.

[0023] In the picture: 1000, Concealed range hood; 2000, Cabinet; 2100, Installation cavity; 3000, Cooktop; 3100, Heat source; 100. Smoke collection mechanism; 200. Main unit housing; 210. Air inlet; 300. Oil cup; 400. Image detection device; 10. Smoke collection chamber body; 11. Front baffle; 111. Bottom surface; 112. Back surface; 12. Side baffle; 13. Filtering mechanism; 14. First sealing element; 141. Clamping surface; 1411. Second insertion interface; 15. Second sealing element; 151. Second arc-shaped contact surface; 20. Movable cavity; 21. Movable cavity body; 211. Air inlet; 212. Front side plate; 213. Upper end plate; 214. First side wall; 215. First insertion interface; 22. First connector; 221. Second drainage section; 2211. Receiving groove; 22111. Opening; 22112. First inclined surface; 22113. Second inclined surface; 2212. Free end; 222. Third drainage section; 223. First drainage section; 224. First hinge point; 225. Second hinge point; 226. Third hinge point; 227. Clearance space; 23. Second connector; 231. Second side wall; 30. Third sealing assembly; 31. Fourth sealing element; 311. First sealing element body; 312. Second conical insertion part; 34. Shielding element; 341. Shielding element body; 342. Limiting part; 40. Flip-up panel; 41. Fifth hinge point; 42. Eighth hinge point; 50. Smoke containment space; 60. First drive mechanism; 62. Second drive mechanism; 70. Fifth seal; 71. Sealing part; 711. Front side; 712. Upper side; 713. Lower side; 714. Back side; 72. First conical insertion part; 80. Second sealing assembly; 81. First sealing element; 811. First sealing body; 8111. First arc-shaped abutment surface; 812. Second sealing body; 82. Second sealing element; 821. Mounting element; 822. Third sealing body; 83. Third sealing element; 831. Mounting part; 832. Second abutment part; 90. First sealing assembly; 91. Mounting body; 92. Fourth sealing body; 921. Clamping part; 922. First abutting part; 700, connecting rod; 710, fourth hinge point; 720, sixth hinge point; 730, seventh hinge point. Detailed Implementation

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0025] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] 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.

[0027] In the description of the embodiments disclosed herein, terms such as "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0028] Example 1 like Figure 1 As shown, this embodiment of the present disclosure provides a concealed range hood 1000, which includes a main unit 200 and a smoke collection mechanism 100. The main unit 200 is disposed at the upper end of the smoke collection mechanism 100 and is connected to the smoke collection mechanism 100. The smoke collection mechanism 100 is provided with an air inlet 211. The main unit 200 can generate negative pressure. The negative pressure generated by the main unit 200 allows the oil fumes outside the concealed range hood 1000 to pass sequentially through the air inlet 211, the interior of the smoke collection mechanism 100, and the main unit 200. The filtered gas is finally discharged from the air outlet of the main unit 200.

[0029] In an alternative embodiment, such as Figures 1-6 As shown, the smoke collection mechanism 100 includes a smoke collection chamber body 10 and a movable cavity 20. The main unit 200 and the smoke collection chamber body 10 are housed in the mounting cavity 2100 of the cabinet 2000. The cabinet 2000 can effectively conceal the main unit 200 and the smoke collection chamber body 10, preventing them from being exposed in the kitchen environment and ensuring the aesthetics of the kitchen. Figures 1-3 As shown, the air inlet 211 is located on the movable cavity 20. The movable cavity 20 and the smoke collection cavity body 10 together form the smoke collection space 50. The movable cavity 20 can switch between a first position where it is stored in the smoke collection cavity body 10 and a second position where it extends downwards from the smoke collection cavity body 10. When the movable cavity 20 is in the first position, the cabinet 2000 can also achieve a good hiding effect on the movable cavity 20. When the movable cavity 20 is in the second position, the air inlet 211 can be closer to the oil fumes, thereby achieving a better absorption effect of the hidden range hood 1000 on the oil fumes and improving the oil fume extraction effect of the hidden range hood 1000.

[0030] In summary, as Figures 1-3 As shown, the concealed range hood 1000 maintains a small size when in its retracted state, while also increasing the smoke extraction area in its second position, effectively improving the smoke extraction effect. The downward movement of the air inlet 211 further enhances the smoke extraction effect of the concealed range hood 1000, enabling better absorption of high-concentration smoke.

[0031] The Concealed Range Hood 1000 is particularly suitable for modern integrated kitchens. When off, its hidden design allows for fully integrated installation with custom cabinetry 2000, making it visually invisible within the kitchen environment and achieving a unity of function and aesthetics. This deep integration not only completely frees up the space occupied by traditional top-mounted or side-mounted range hoods, but is also especially suitable for open kitchens and small to medium-sized kitchens that prioritize minimalism. It seamlessly integrates fume extraction with the kitchen workspace, creating a spacious, clean, and high-quality cooking environment while efficiently removing smoke.

[0032] In an alternative embodiment, such as Figures 1-3 As shown, the smoke collection mechanism 100 also includes a flap 40, which can, as Figure 1 The recovery state shown and as follows Figure 3 The diagram shows the switching between extended states. For example... Figure 1 As shown, when the flip panel 40 is in the retracted state, the concealed range hood 1000 can be well hidden in the cabinet 2000, preventing the flip panel 40 from being exposed in the kitchen environment and ensuring the aesthetics of the kitchen. Figure 3 As shown, when the flap 40 is in the extended state, the flap 40 can form a certain space for oil fume to gather, thereby achieving a better oil fume extraction effect for the hidden range hood 1000.

[0033] In an alternative embodiment, such as Figures 1-6 As shown, the concealed range hood 1000 also includes an oil cup 300, which is connected to the interior of the smoke collection mechanism 100. The oil cup 300 can collect the oil flowing out from the main unit 200 and the smoke collection mechanism 100, which can prevent the oil inside the concealed range hood 1000 from dripping onto the stovetop and ensure that the stovetop is always clean.

[0034] like Figures 2-3 As shown, the movable cavity 20 of the existing concealed range hood 1000 can only move in the vertical direction, thereby realizing the switching of the movable cavity 20 between the first position and the second position. When the movable cavity 20 is in the second position, the air inlet 211 can get closer to the oil fumes in the vertical direction. Although it can improve the oil fume absorption effect of the concealed range hood 1000 to a certain extent, the oil fume absorption effect of the existing concealed range hood 1000 in the working state is still slightly poor.

[0035] To solve the above problems, such as Figure 2 , Figure 3 as well as Figure 6As shown, the concealed range hood 1000 of this embodiment includes a smoke-gathering mechanism 100, which includes a smoke-gathering chamber body 10 and a movable cavity 20. The movable cavity 20 has an air inlet 211. The movable cavity 20 includes a first position housed within the smoke-gathering chamber body 10 and a second position extending out of the smoke-gathering chamber body 10. During the transition from the first position to the second position, the air inlet 211 moves forward and downward simultaneously. When the movable cavity 20 is in the second position, the air inlet 211 is positioned lower and forward, bringing it closer to the smoke source and effectively improving the smoke extraction effect of the concealed range hood 1000 during operation. Furthermore, the simultaneous forward and downward movement of the air inlet 211 during the transition from the first position to the second position allows the air inlet 211 to quickly reach the lower and forward position, achieving a rapid and effective absorption of smoke by the concealed range hood 1000.

[0036] In an alternative embodiment, such as Figures 25-29 As shown, the concealed range hood 1000 also includes an image detection device 400 and a first drive mechanism 60. The image detection device 400 can acquire the first position information of the heat source 3100 and the second position information of the air inlet 211. The first drive mechanism 60 can adjust the position of the air inlet 211 in the front-back direction according to the first position information and the second position information, so that the air inlet 211 can be closer to the heat source 3100 in the front-back direction, so that the movable cavity 20 can better adapt to the position of the heat source 3100, and ensure that the air inlet 211 is always directly above the heat source 3100, so as to collect oil fumes to the maximum extent, further improve the smoke exhaust effect of the concealed range hood 1000, achieve a better absorption effect of oil fumes by the air inlet 211, and make the kitchen oil fumes more effectively treated.

[0037] It should be noted that the specific adjustment method of the movable cavity 20 can be found in Embodiments 9 and 10.

[0038] In an alternative embodiment, such as Figure 4 , Figure 6 , Figure 11 as well as Figure 17As shown, the concealed range hood 1000 also includes a first drive mechanism 60. The movable cavity 20 includes a movable cavity body 21, a first connector 22, and a second connector 23. The second connector 23 is located behind the first connector 22. The free end 2212 of the first connector 22 and the upper end of the second connector 23 are rotatably connected to the smoke collection cavity body 10. The lower end of the first connector 22 and the lower end of the second connector 23 are rotatably connected to the movable cavity body 21. The first drive mechanism 60 is rotatably connected to the smoke collection cavity body 10 and the movable cavity 20 respectively. When the first drive mechanism 60 makes a linear extension movement, the movable cavity body 21, the first connector 22, and the second connector 23 all move forward and downward, thereby causing the smoke collection space 50 and the air inlet 211 to move forward and downward, achieving a better absorption effect of oil fumes by the air inlet 211.

[0039] With the aforementioned structure of the movable cavity 20, the internal volume of the movable cavity 20 gradually increases as it switches from the first position to the second position. That is, when the hidden range hood 1000 is not in operation, the movable cavity 20 is in the first position and is in a retracted state, ensuring a small volume when the hidden range hood 1000 is not in operation; when the hidden range hood 1000 is in operation, the movable cavity 20 is in the second position and is in an extended state, ensuring a good smoke extraction effect during use.

[0040] In summary, the concealed range hood 1000 of this disclosure embodiment can ensure good oil fume extraction effect during use, and also ensure a small size when not in use.

[0041] In an alternative embodiment, such as Figure 11 As shown, the position where the upper end of the first connector 22 is rotatably connected to the smoke collection chamber body 10 is the first connection position P; the position where the lower end of the first connector 22 is rotatably connected to the movable chamber body 21 is the second connection position Q; the position where the upper end of the second connector 23 is rotatably connected to the smoke collection chamber body 10 is the third connection position M; and the position where the lower end of the second connector 23 is rotatably connected to the movable chamber body 21 is the fourth connection position N. Here, PQNM form a parallelogram structure. Due to the setting of the parallelogram structure, the movable chamber body 21 can be kept in a horizontal position as the air inlet 211 moves forward and downward, which can ensure that the air inlet 211 on the movable chamber body 21 always has a good and stable air intake effect.

[0042] In an alternative embodiment, such as Figure 4 , Figure 6 , Figure 11 and Figure 12As shown, the first connecting member 22 is a connecting plate extending in the left-right direction, and the second connecting member 23 is a connecting plate extending in the left-right direction. The smoke-collecting space 50 is formed by splicing together the smoke-collecting cavity body 10, the movable cavity body 21, the first connecting member 22, and the second connecting member 23, which can realize the formation of a larger volume smoke-collecting space 50 and further improve the smoke absorption effect of the hidden range hood 1000. In addition, due to the shape design of the connecting plates of the first connecting member 22 and the second connecting member 23, a better sealing effect can be achieved for the smoke-collecting space 50, and the smoke-collecting space 50 can achieve a better absorption effect for oil fumes. Furthermore, the smoke-collecting mechanism 100 with this shape involves fewer plate structures and has a simple structure.

[0043] In an alternative embodiment, such as Figure 4 , Figure 6 , Figure 11 and Figure 12 As shown, the first connecting member 22 is the first connecting plate. When the movable cavity 20 is in the second position, the first connecting plate protrudes to the rear and a clearance space 227 is formed on the front side of the first connecting plate. When the movable cavity 20 switches from the first position to the second position, that is, when the air inlet 211 moves downward and forward at the same time, the clearance space 227 can avoid interference between the first connecting member 22 and the smoke collection cavity body 10, and can also avoid interference between the first connecting member 22 and the cabinet 2000. Structurally, it can ensure that the movable cavity 20 of the hidden range hood 1000 moves forward and downward synchronously. The structure is simple and ingenious, and solves the technical problem that "the movable cavity 20 of the hidden range hood 1000 can only move in the vertical direction" that has been difficult for people in the art to overcome.

[0044] In an alternative embodiment, such as Figure 4 , Figure 6 , Figure 11 and Figure 12 As shown, the smoke collection mechanism 100 also includes a second drive mechanism 62. The flap 40 is movably connected to the movable cavity 20. The second drive mechanism 62 can independently drive the flap 40 to open or block the air inlet 211. Through the independent control of the movable cavity 20 by the first drive mechanism 60 and the independent control of the flap 40 by the second drive mechanism 62, the hidden range hood 1000 can switch between a variety of different working states, thereby achieving the matching and adaptation of the hidden range hood 1000 to different oil fume scenarios. This type of hidden range hood 1000 can achieve a good absorption effect of oil fumes in different oil fume scenarios.

[0045] Because the movable cavity 20 can move relative to the smoke collection cavity body 10, during the process of switching between the first and second positions, there is a gap between the movable cavity 20 and the smoke collection cavity body 10. Due to the existence of the gap, the smoke collection space 50 has poor sealing. The oil fumes or oil accumulated inside the range hood 1000 will overflow from the gap between the movable cavity 20 and the smoke collection cavity body 10, affecting the kitchen environment and reducing the user's experience.

[0046] To solve the above problems, such as Figure 4 , Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown in the figure, this embodiment of the present disclosure provides a concealed range hood 1000, which includes a smoke collection mechanism 100. The smoke collection mechanism 100 includes a smoke collection chamber body 10, a movable cavity 20, and a second sealing component 80. The movable cavity 20 has an air inlet 211 and together with the smoke collection chamber body 10, forms a smoke collection space 50. The movable cavity 20 can switch between a first position where it is housed in the smoke collection chamber body 10 and a second position where it extends out of the smoke collection chamber body 10. During the switching process between the first and second positions, the second sealing component 80 always seals the gap between the smoke collection chamber body 10 and the movable cavity 20. No matter what state the movable cavity 20 is in, the second sealing component 80 always provides a good seal for the smoke collection space 50. The oil fumes or oil accumulated inside the concealed range hood 1000 will not overflow from the gap between the movable cavity 20 and the smoke collection chamber body 10, ensuring a clean kitchen environment and improving the smoke extraction effect, thus effectively improving the user experience.

[0047] In an alternative embodiment, such as Figure 4 and Figure 5 As shown, the second sealing assembly 80 includes a first sealing member 81. Regardless of whether the movable cavity 20 is in the first position or the second position, the first sealing member 81 is clamped between the free end 2212 of the first connector 22 and the smoke collection chamber body 10. The first sealing member 81 can achieve a good sealing effect between the free end 2212 of the first connector 22 and the smoke collection chamber body 10, preventing oil fumes or oil from overflowing from the gap between the free end 2212 of the first connector 22 and the smoke collection chamber body 10, ensuring a clean kitchen environment and improving the user experience.

[0048] In an alternative embodiment, such as Figure 6 and Figure 8As shown, when the movable cavity 20 is in the second position, the first sealing member 81 is clamped between the free end 2212 of the first connecting member 22 and the smoke collection cavity body 10. The first sealing member 81 can achieve a better sealing effect between the free end 2212 of the first connecting member 22 and the smoke collection cavity body 10, reduce the air volume loss of the hidden range hood 1000, and improve the smoke extraction effect of the hidden range hood 1000.

[0049] In an alternative embodiment, such as Figure 5 and Figure 8 As shown, the first sealing element 81 may include a first sealing body 811 and a second sealing body 812. The first sealing body 811 is disposed on the smoke collection chamber body 10, and the second sealing body 812 is disposed on the free end 2212 of the first connecting member 22. Regardless of the position of the movable cavity 20, the first sealing body 811 and the second sealing body 812 abut against each other. Through the cooperation of the first sealing body 811 and the second sealing body 812, a good sealing effect can be achieved between the free end 2212 of the first connecting member 22 and the smoke collection chamber body 10, reducing the air volume loss of the hidden range hood 1000, improving the smoke extraction effect of the hidden range hood 1000, and preventing the smoke odor or oil from overflowing from the gap between the free end 2212 of the first connecting member 22 and the smoke collection chamber body 10, ensuring a clean kitchen environment and improving the user experience.

[0050] In an optional embodiment, the first sealing member 81 may consist only of the first sealing body 811, which is disposed on the smoke collection chamber body 10. Regardless of the position of the movable chamber 20, the free end 2212 of the first connecting member 22 abuts against the first sealing body 811. Through the abutment between the free end 2212 of the first connecting member 22 and the first sealing body 811, a better sealing effect can be achieved between the free end 2212 of the first connecting member 22 and the smoke collection chamber body 10, reducing the air volume loss of the concealed range hood 1000, improving the smoke extraction effect of the concealed range hood 1000, and preventing the smoke odor or oil from overflowing from the gap between the free end 2212 of the first connecting member 22 and the smoke collection chamber body 10, ensuring a clean kitchen environment and improving the user experience.

[0051] In an optional embodiment, the first sealing member 81 may only include the second sealing body 812. The second sealing body 812 is disposed at the free end 2212 of the first connecting member 22. Regardless of the position of the movable cavity 20, the second sealing body 812 abuts against the smoke collection cavity body 10. Through the abutment of the second sealing body 812 against the smoke collection cavity body 10, a better sealing effect can be achieved between the free end 2212 of the first connecting member 22 and the smoke collection cavity body 10, reducing the air volume loss of the concealed range hood 1000, improving the smoke extraction effect of the concealed range hood 1000, and preventing the oil fumes or oil from overflowing from the gap between the free end 2212 of the first connecting member 22 and the smoke collection cavity body 10, ensuring a clean kitchen environment and improving the user experience.

[0052] In an alternative embodiment, such as Figure 6 and Figure 8 As shown, the first sealing body 811 includes a first arc-shaped abutment surface 8111. No matter what position the movable cavity 20 is in, the free end 2212 of the first connector 22 or the second sealing body 812 always abuts against the first arc-shaped abutment surface 8111. That is, no matter what state the movable cavity 20 moves to, the free end 2212 of the first connector 22 and the smoke collection cavity body 10 can always maintain a sealing effect, thereby enabling continuous and stepless adjustment of the movable cavity 20 at different positions, reducing the air volume loss of the hidden range hood 1000, and improving the smoke extraction effect of the hidden range hood 1000.

[0053] For example, such as Figure 8 As shown, the shape of the first arc-shaped abutment surface 8111 is the same as the trajectory of the free end 2212 of the first connector 22 or the trajectory of the second sealing body 812, thereby achieving the effect that the free end 2212 of the first connector 22 or the second sealing body 812 is always in contact with the first arc-shaped abutment surface 8111. For example, the first sealing body 811 and the second sealing body 812 can be made of elastic material, thereby achieving a good sealing effect between the free end 2212 of the first connector 22 and the smoke collection chamber body 10, and also preventing damage or noise from hard impact between the free end 2212 of the first connector 22 and the smoke collection chamber body 10.

[0054] In an alternative embodiment, such as Figure 1 , Figure 9 and Figure 10As shown, the second sealing assembly 80 also includes a second sealing element 82. The smoke collection chamber body 10 includes two side baffles 12 arranged in the left-right direction. The movable cavity 20 has side wall surfaces that correspond one-to-one with the corresponding side baffles 12. The second sealing element 82 is sandwiched between the side baffles 12 and their corresponding side wall surfaces. By setting the second sealing element 82, a better sealing effect can be achieved between the side baffles 12 and the smoke collection chamber body 10, reducing air volume loss and effectively improving the smoke extraction effect of the concealed range hood 1000. The concealed range hood 1000 has a better smoke extraction effect, preventing oil fumes or oil from overflowing from the smoke collection space 50, ensuring a clean kitchen environment, and improving the user experience.

[0055] It should be noted that the second seal 82 can ensure the sealing effect between the side baffle 12 and the smoke collection chamber body 10 in different states of the movable cavity 20. That is, no matter what state the movable cavity 20 is in, the setting of the second seal 82 can ensure that the smoke collection space 50 always has a good sealing effect.

[0056] For example, such as Figure 1 , Figure 9 and Figure 10 As shown, the movable cavity body 21 includes a first side wall 214, and a second sealing element 82 is provided on the first side wall 214. The second sealing element 82 is sandwiched between the first side wall 214 and the side baffle 12. Through the provision of the second sealing element 82, a better sealing effect can be achieved on the gap between the first side wall 214 and the side baffle 12.

[0057] For example, such as Figure 1 , Figure 9 and Figure 10 As shown, the second sealing element 82 includes a mounting element 821 and a third sealing body 822. The third sealing body 822 extends along the extending direction of the first side wall 214. The mounting element 821 fixes the third sealing body 822 to the movable cavity body 21, and the third sealing body 822 can seal the gap between the first side wall 214 and the movable cavity body 21. For example, the mounting element 821 may include a mounting plate and a fixing element. The mounting plate presses the third sealing body 822 onto the movable cavity body 21, and the fixing element fixes the mounting plate, the third sealing body 822, and the movable cavity body 21 together, thereby achieving the function of the mounting plate and the movable cavity body 21 firmly clamping the third sealing body 822. For example, the fixing element can be a screw, pin, buckle, etc., and all structures that can fix the mounting plate, the third sealing body 822, and the movable cavity body 21 together are within the protection scope of this optional embodiment.

[0058] For example, such as Figure 1 , Figure 9 and Figure 10As shown, the second connector 23 includes a second side wall 231, and a second sealing element 82 is provided on the second side wall 231. The second sealing element 82 is sandwiched between the second side wall 231 and the side baffle 12. Through the provision of the second sealing element 82, a better sealing effect can be achieved on the gap between the second side wall 231 and the side baffle 12.

[0059] For example, such as Figure 1 , Figure 9 and Figure 10 As shown, the second sealing element 82 includes a mounting element 821 and a third sealing body 822. The third sealing body 822 extends along the extending direction of the second side wall surface 231. The mounting element 821 fixes the third sealing body 822 to the second connecting member 23. The third sealing body 822 can seal the gap between the second side wall surface 231 and the second connecting member 23. For example, the mounting element 821 may include a mounting plate and a fixing member. The mounting plate presses the third sealing body 822 onto the second connecting member 23, and the fixing member fixes the mounting plate, the third sealing body 822, and the second connecting member 23 together, thereby achieving the function of the mounting plate and the second connecting member 23 firmly clamping the third sealing body 822. For example, the fixing member can be a screw, pin, buckle, etc. All structures that can fix the mounting plate, the third sealing body 822, and the second connecting member 23 together are within the protection scope of this optional embodiment.

[0060] For example, such as Figure 10 As shown, the third sealing body 822 can be made of an elastic material, thereby achieving a consistently good sealing effect between the movable cavity 20 and the smoke collection cavity body 10 in the left-right direction. The elastic material can be rubber, silicone, etc., and all materials with elastic deformation properties are within the protection scope of this optional embodiment.

[0061] Because the movable cavity 20 can move relative to the smoke collection cavity body 10, there is a gap between the movable cavity 20 and the smoke collection cavity body 10. When the movable cavity 20 is in the first position, the presence of the gap results in poor sealing of the smoke collection space 50. The oil fumes or oil accumulated inside the range hood 1000 will overflow from the gap between the movable cavity 20 and the smoke collection cavity body 10, affecting the kitchen environment and reducing the user's experience.

[0062] To solve the above problems, such as Figure 4 and Figure 5As shown, this embodiment of the present disclosure provides a concealed smoke hood 1000, which includes a smoke collection mechanism 100. The smoke collection mechanism 100 includes a smoke collection chamber body 10, a movable cavity 20, and a third sealing component 30. The movable cavity 20 has an air inlet 211 and together with the smoke collection chamber body 10, forms a smoke collection space 50. The movable cavity 20 can switch between a first position where it is housed in the smoke collection chamber body 10 and a second position where it extends out of the smoke collection chamber body 10. When the movable cavity 20 is in the first position, the third sealing component 30 is disposed between the smoke collection chamber body 10 and the movable cavity 20, and the third sealing component 30 seals the gap between the smoke collection chamber body 10 and the movable cavity 20. When the movable cavity 20 is in the first position, the third sealing component 30 can completely seal the gap, achieving a better sealing effect on the smoke collection space 50. This prevents the oil fumes or oil accumulated inside the range hood 1000 from overflowing from the gap between the movable cavity 20 and the smoke collection cavity body 10, ensuring a clean kitchen environment and improving the user experience.

[0063] In an alternative embodiment, such as Figure 4 and Figure 6 As shown, the smoke collection chamber body 10 also includes a filter mechanism 13. The filter mechanism 13 is located at the lower end of the air inlet 210 of the main unit 200. The filter mechanism 13 can perform preliminary filtration of the oil fumes in the smoke collection space 50. The preliminarily filtered gas then enters the main unit 200 for further filtration. The upper end of the second connector 23 is rotatably connected to the filter mechanism 13, which enables the second connector 23 to be quickly installed on the smoke collection chamber body 10.

[0064] In an alternative embodiment, such as Figure 4 and Figure 5 As shown, the smoke collection chamber body 10 includes a front baffle 11 and a first sealing member 14 disposed on its back side. The third sealing assembly 30 includes a fourth sealing member 31. When the movable chamber 20 is in the first position, the fourth sealing member 31 is clamped between the first sealing member 14 and the movable chamber body 21. The fourth sealing member 31 can achieve a good sealing effect between the movable chamber body 21 and the first sealing member 14, preventing oil fumes or oil from overflowing from the gap between the movable chamber body 21 and the first sealing member 14, ensuring a clean kitchen environment and improving the user experience.

[0065] In an alternative embodiment, such as Figure 4 and Figure 5As shown, the first sealing member 14 includes a clamping surface 141, and the movable cavity body 21 includes an upper end plate 213. The clamping surface 141 is located above the upper end plate 213. The fourth sealing member 31 is clamped by the clamping surface 141 and the upper end plate 213. The clamping surface 141 and the upper end plate 213 can achieve tight clamping of the fourth sealing member 31, thereby sealing the gap between the first sealing member 14 and the movable cavity body 21.

[0066] In an alternative embodiment, such as Figure 4 and Figure 5 As shown, the fourth sealing element 31 includes a first sealing element body 311 and a second conical insertion part 312 connected to each other. A second insertion interface 1411 is provided on the clamping surface 141. The second conical insertion part 312 is inserted into the second insertion interface 1411, thereby enabling quick installation and stable locking of the second conical insertion part 312 and the second insertion interface 1411. The insertion of the second conical insertion part 312 into the second insertion interface 1411 enables a stable connection between the fourth sealing element 31 and the first sealing element 14, and enables a good sealing effect between the movable cavity body 21 and the first sealing element 14.

[0067] In an optional embodiment, a second insertion interface 1411 can be provided on the movable cavity body 21, and the second conical insertion part 312 can be inserted into the second insertion interface 1411, which can also achieve the above-mentioned effect.

[0068] In an alternative embodiment, such as Figure 4 and Figure 5 As shown, the fourth sealing element 31 can be made of an elastic material, thereby achieving a consistently good sealing effect between the first sealing element 14 and the movable cavity body 21, and preventing damage or noise from hard impacts between the first sealing element 14 and the movable cavity body 21. For example, the elastic material can be silicone, rubber, etc., and all materials with elastic deformation properties are within the protection scope of this optional embodiment, which will not be listed exhaustively.

[0069] like Figure 4 , Figure 5 , Figure 6 and Figure 8As shown, the third sealing assembly 30 also includes a shielding member 34, which is disposed on the back side 112 of the front baffle 11 and located above the first sealing member 81. The shielding member 34 can shield the gap between the first sealing body 811 and the second sealing body 812, which can further improve the sealing effect between the free end 2212 of the first connecting member 22 and the smoke collection chamber body 10. In addition, the shielding member 34 can shield the gap between the first sealing body 811 and the second sealing body 812, and at least part of the shielding member 34 extends into the interior of the movable cavity 20. The shielding member 34 can also receive the oil inside the smoke collection space 50 and guide it into the interior of the movable cavity 20 and be recovered by the oil cup 300. This can prevent the oil inside the smoke collection space 50 from overflowing from the gap between the free end 2212 of the first connecting member 22 and the smoke collection chamber body 10, and prevent the oil from overflowing from the back side of the front baffle 11, thus ensuring the cleanliness of the hidden range hood 1000 and the stove below it.

[0070] In an alternative embodiment, such as Figure 4 and Figure 5 As shown, a receiving groove 2211 is provided on the inner side wall of the movable cavity 20. When the movable cavity 20 is in the first position, the shielding member 34 can guide the oil inside the smoke collection space 50 it receives to the receiving groove 2211 for buffering, so as to prevent the oil from flowing to the outside of the hidden smoke machine 1000.

[0071] In an alternative embodiment, such as Figure 4 and Figure 8 As shown, the shielding member 34 includes a shielding member body 341 and two limiting parts 342. The two limiting parts 342 are spaced apart on the back side of the shielding member body 341 and form a first region. By setting the two limiting parts 342, the oil on the back of the shielding member 34 can be restricted to the first region, which can prevent the oil from flowing to the left and right sides of the shielding member 34 and ensure that the oil on the shielding member 34 enters the smoke collection space 50, and prevent the oil from leaking out from the gap between the smoke collection chamber body 10 and the movable chamber 20.

[0072] In an alternative embodiment, such as Figure 6 and Figure 8 As shown, when the active cavity 20 is in the second position, the oil in the receiving tank 2211 can flow into the smoke collection space 50, and the oil is eventually recovered by the oil cup 300, which can prevent the oil from flowing out of the hidden range hood 1000 and ensure the cleanliness of the hidden range hood 1000 and the stove under it.

[0073] In an alternative embodiment, such as Figure 4 as well as Figure 6As shown, the lower end of the second connector 23 is pivotally connected to the smoke collection chamber body 10, and the upper end of the second connector 23 is pivotally connected to the smoke collection chamber body 10. When the movable cavity 20 is in the first position, the second position, or any intermediate position, the connection is made by pivoting the entire shaft, which improves the sealing effect between the lower end of the second connector 23 and the smoke collection chamber body 10, and also improves the sealing effect between the upper end of the second connector 23 and the smoke collection chamber body 10. This further ensures that the smoke collection space 50 always has a good sealing effect, reduces air volume loss, and effectively improves the smoke extraction effect of the concealed range hood 1000. The concealed range hood 1000 has a good smoke extraction effect, preventing oil fumes or oil from overflowing from the smoke collection space 50, ensuring a clean kitchen environment, and improving the user experience.

[0074] Since the movable cavity 20 can move relative to the smoke collection cavity body 10, there is a gap between the movable cavity 20 and the smoke collection cavity body 10. When the movable cavity 20 is in the second position, the presence of the gap results in poor sealing of the smoke collection space 50, which will cause a large loss of air volume, resulting in a significant reduction in the smoke extraction effect of the hidden range hood 1000. The smoke extraction effect of the hidden range hood 1000 is poor.

[0075] To solve the above problems, such as Figure 6 As shown, this embodiment of the present disclosure provides a concealed range hood 1000, which includes a smoke-gathering mechanism 100. The smoke-gathering mechanism 100 includes a smoke-gathering chamber body 10, a movable cavity 20, and a fifth sealing member 70. The movable cavity 20 has an air inlet 211 and together with the smoke-gathering chamber body 10, it forms a smoke-gathering space 50. The movable cavity 20 can switch between a first position where it is housed in the smoke-gathering chamber body 10 and a second position where it extends out of the smoke-gathering chamber body 10. When the movable cavity 20 is in the second position, the fifth sealing member 70 is disposed between the smoke-gathering chamber body 10 and the movable cavity 20, and seals the gap between the smoke-gathering chamber body 10 and the movable cavity 20, effectively improving the sealing performance of the smoke-gathering space 50, reducing airflow loss, and effectively improving the smoke extraction effect of the concealed range hood 1000. The smoke extraction effect of the concealed range hood 1000 is good. It should be noted that when the movable cavity 20 is in the second position, the movable cavity 20 can extend downward relative to the smoke gathering cavity body 10, or the movable cavity 20 can extend forward and downward relative to the smoke gathering cavity body 10.

[0076] In an alternative embodiment, such as Figure 6 and Figure 7As shown, the smoke collection chamber body 10 includes a front baffle 11. When the movable chamber 20 is in the second position, the fifth sealing member 70 is clamped between the front baffle 11 and the movable chamber body 21. The fifth sealing member 70 can achieve a better sealing effect between the movable chamber body 21 and the front baffle 11, reduce the air volume loss of the hidden range hood 1000, and improve the smoke extraction effect of the hidden range hood 1000.

[0077] In an alternative embodiment, such as Figure 6 and Figure 7 As shown, the fifth sealing element 70 is disposed on the movable cavity body 21. The front baffle 11 includes a bottom surface 111 and a back surface 112. The fifth sealing element 70 includes a front side surface 711 and an upper side surface 712. When the movable cavity body 20 is in the second position, the bottom surface 111 abuts against the upper side surface 712, and the back surface 112 abuts against the front side surface 711. The fifth sealing element 70 can achieve a better sealing effect on the movable cavity body 21 and the front baffle 11 in different positions and dimensions, thereby achieving a better sealing effect of the fifth sealing element 70 on the gap between the movable cavity body 21 and the front baffle 11, reducing the air volume loss of the hidden range hood 1000, and improving the oil fume extraction effect of the hidden range hood 1000.

[0078] In an alternative embodiment, such as Figure 6 and Figure 7 As shown, the fifth seal 70 can be made of an elastic material. On the one hand, the fifth seal 70 has a certain degree of elasticity, which can prevent hard collisions or hard contact between the movable cavity body 21 and the front baffle 11, thus preventing damage to the movable cavity body 21 and the front baffle 11, and also preventing the large noise generated by the collision between the movable cavity body 21 and the front baffle 11. On the other hand, since the fifth seal 70 has a certain amount of elastic deformation, it can allow for a certain installation error between the movable cavity body 21 and the front baffle 11, and the corresponding installation error can be compensated by the elastic deformation of the fifth seal 70. For example, the fifth seal 70 can be rubber, silicone, etc., and all materials with elastic deformation are within the protection scope of this optional embodiment.

[0079] In an alternative embodiment, such as Figure 6 and Figure 7 As shown, the fifth seal 70 and the movable cavity body 21 can be fixedly connected by an adhesive layer or a snap-fit ​​structure, etc. All structures that can achieve a stable connection between the fifth seal 70 and the movable cavity body 21 are within the protection scope of this optional embodiment.

[0080] For example, such as Figure 7As shown, the fifth sealing element 70 includes a sealing part 71 and a first conical insertion part 72 disposed thereon. The movable cavity body 21 is provided with a first insertion interface 215. The first conical insertion part 72 is inserted into the first insertion interface 215, thereby enabling quick installation and stable locking of the first conical insertion part 72 and the first insertion interface 215. The insertion of the first conical insertion part 72 into the first insertion interface 215 enables a stable connection between the fifth sealing element 70 and the movable cavity body 21, reducing the air volume loss of the concealed range hood 1000 and improving the oil fume extraction effect of the concealed range hood 1000.

[0081] In an alternative embodiment, such as Figure 6 and Figure 7 As shown, the fifth sealing element 70 also includes a lower side surface 713. The upper side surface 712 and the lower side surface 713 are spaced apart in the vertical direction. This spacing can prevent the cabinet door of the cabinet 2000 from sag and collide with the movable cavity 20 due to long-term use. For example, the distance between the upper side surface 712 and the lower side surface 713 in the vertical direction is 5mm to 15mm, which can effectively prevent the movable cavity 20 from bumping against the drooping cabinet door.

[0082] In an alternative embodiment, such as Figure 7 As shown, the fifth sealing element 70 can also be set on the smoke collection chamber body 10. The movable chamber body 21 includes a front side plate 212 and an upper end plate 213. When the movable chamber body 20 is in the second position, the fifth sealing element 70 includes a lower side surface 713 and a back side surface 714. The lower side surface 713 abuts against the upper end plate 213, and the back side surface 714 abuts against the front side plate 212. The setting of the fifth sealing element 70 can achieve a better sealing effect on the movable chamber body 21 and the front baffle 11 in different positions and dimensions, thereby achieving a better sealing effect of the fifth sealing element 70 on the gap between the movable chamber body 21 and the front baffle 11, reducing the air volume loss of the hidden range hood 1000, and improving the smoke extraction effect of the hidden range hood 1000.

[0083] Example 2 like Figure 12 and Figure 13 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, with the main difference being: Figure 12 and Figure 13As shown, the smoke collection chamber body 10 also includes a second sealing member 15, and the second sealing assembly 80 also includes a third sealing member 83. During the switching process between the first position and the second position of the movable cavity 20, the third sealing member 83 always seals the gap between the second sealing member 15 and the movable cavity 20. Through the setting of the third sealing member 83, a better sealing effect can be achieved between the smoke collection chamber body 10 and the movable cavity 20, which can prevent the accumulation of oil stains in the space between the first connecting member 22 and the smoke collection chamber body 10, and further prevent the oil fumes or oil liquid accumulated inside the hidden range hood 1000 from overflowing from the space between the smoke collection chamber body 10 and the movable cavity 20, ensuring a clean kitchen environment and improving the user experience.

[0084] In an optional embodiment, the second sealing member 15 includes a second arc-shaped abutment surface 151, and the third sealing member 83 is fixedly disposed in the movable cavity 20. The end of the third sealing member 83 is always in contact with the second arc-shaped abutment surface 151. The curve shape of the second arc-shaped abutment surface 151 is the movement trajectory of the third sealing member 83. Through the design of the second arc-shaped abutment surface 151, the third sealing member 83 and the second arc-shaped abutment surface 151 can always achieve a good sealing and abutment effect, which can further prevent the accumulation of oil between the first connecting member 22 and the smoke collection cavity body 10.

[0085] In an alternative embodiment, such as Figure 12 and Figure 13 As shown, the third sealing element 83 includes a mounting portion 831 and a second abutting portion 832. The mounting portion 831 is fixedly connected to the movable cavity 20, and the second abutting portion 832 is fixedly connected to the mounting portion 831. The end of the second abutting portion 832 abuts against the second arc-shaped abutting surface 151, thereby achieving a stable connection between the third sealing element 83 and the movable cavity 20, and also achieving a good sealing effect of the third sealing element 83 on the gap between the movable cavity 20 and the second sealing element 15. For example, the mounting portion 831 can be glued to the movable cavity 20, fixed with screws, or fixed with pins.

[0086] For example, the third seal 83 can be made of silicone, rubber, etc., which can prevent hard collisions between the movable cavity 20 and the smoke collection cavity body 10, and also prevent the movable cavity 20 and the smoke collection cavity body 10 from generating large noise.

[0087] Example 3 like Figures 14-16 As shown, the structure of this embodiment is a further improvement on the structure of Embodiment 1, as follows: Figures 14-16As shown, the first connecting plate includes a first drainage section 223. When the movable cavity 20 is in the first position, the first drainage section 223 is inclined downward from front to back. The first drainage section 223 can effectively guide the oil inside the movable cavity 20 to the movable cavity body 21, thereby achieving a better oil recovery effect of the oil cup 300.

[0088] In an alternative embodiment, such as Figure 5 As shown, the first connecting plate includes a second drainage section 221. When the movable cavity 20 is in the second position, the second drainage section 221 is inclined downward from front to back. The second drainage section 221 can better guide the oil inside the movable cavity 20 to the movable cavity body 21, thereby achieving a better oil recovery effect of the oil cup 300.

[0089] like Figure 4 , Figures 14-16 As shown, the smoke collection chamber body 10 includes a front baffle 11, and the movable cavity 20 includes a first connector 22 with a free end 2212. The first connector 22 is disposed in the smoke collection chamber body 10, and the first connector 22 and the corresponding front baffle 11 are arranged from back to front (i.e. along the first direction). When the movable cavity 20 is in the first position stored in the smoke collection chamber body 10, at least part of the first connector 22 is inclined downward from back to front, and the free end 2212 is located at the lower part of the first connector 22 and abuts against or is spaced apart from the corresponding front baffle 11. When the movable cavity 20 is in the first position, the oil inside the smoke collection space 50 accumulates to a certain extent and flows along the first connector 22 and forward and downward to the gap between the free end 2212 and the first connector 22. The oil will flow from the gap between the free end 2212 and the first connector 22 to the outside of the hidden range hood 1000 and the stove, affecting the cleanliness of the kitchen and the user's experience.

[0090] To solve the above problems, such as Figure 4 , Figure 12 and Figure 13 As shown, the first connector 22 has an opening 2211 for receiving groove 2211. When the movable cavity 20 is in the first position of being housed in the smoke collection cavity body 10, the opening 22111 faces upward. When the oil inside the smoke collection space 50 accumulates to a certain extent, it will flow forward and downward along the first connector 22 and be collected into the receiving groove 2211. This can prevent the oil from flowing from the gap between the free end 2212 and the first connector 22 to the outside of the hidden range hood 1000 and the stove, ensuring the cleanliness of the kitchen and improving the user experience.

[0091] In an optional embodiment, the structural design of the first connector 22 can be applied to the second connector 23, the left connecting plate, the right connecting plate, etc., and can also achieve the above-mentioned effect. This optional embodiment does not elaborate on the structure of the second connector 23, the left connecting plate, the right connecting plate, etc.

[0092] In an alternative embodiment, such as Figure 14 and Figure 15 As shown, the accommodating groove 2211 includes a first inclined surface 22112 and a second inclined surface 22113 arranged from back to front. When the movable cavity 20 is in the first position, the first inclined surface 22112 is inclined downward from back to front, and the second inclined surface 22113 is inclined upward from back to front. The first inclined surface 22112 and the second inclined surface 22113 are arranged at an angle. The cooperation of the first inclined surface 22112 and the second inclined surface 22113 can form a large accommodating space. The accommodating space can achieve a better recycling effect on the oil inside the smoke collection space 50. The accommodating groove 2211 with this structure can prevent the oil inside the accommodating groove 2211 from overflowing from the opening 22111.

[0093] like Figures 14-16 As shown, the accommodating groove 2211 includes a first inclined surface 22112 and a second inclined surface 22113 arranged from back to front. When the movable cavity 20 is in the second position, the first inclined surface 22112 is inclined downward from front to back. The first inclined surface 22112 can achieve the effect of guiding the oil in the accommodating groove 2211 to the smoke collection space 50.

[0094] In an optional embodiment, Figures 14-16 As shown, the smoke collection mechanism 100 also includes a first sealing component 90. When the movable cavity 20 is in the first position, the first sealing component 90 is sandwiched between the connecting plate and the smoke collection cavity body 10. Along the front-rear direction, the front baffle 11 is located on one side of the first sealing component 90, and at least part of the air inlet 210 of the main unit 200 is located on the other side of the first sealing component 90. The first sealing component 90 can block a portion of the oil overflowing from the air inlet 210 of the main unit 200 from flowing through the first connector 22 to the gap between the free end 2212 and the front baffle 11, further preventing the oil from flowing from the gap between the free end 2212 and the first connector 22 to the outside of the hidden range hood 1000 and the stove, further improving the cleanliness of the kitchen and further ensuring the user's experience.

[0095] In an optional embodiment, Figures 14-16As shown, the first sealing assembly 90 includes a mounting body 91 and a fourth sealing body 92. The mounting body 91 and the filter mechanism 13 of the smoke collection chamber body 10 together securely clamp the fourth sealing body 92, thereby achieving a stable installation effect for the fourth sealing body 92. For example, the mounting body 91 and the filter mechanism 13 of the smoke collection chamber body 10 can be securely connected by screws, pins, snaps, etc. For example, the fourth sealing body 92 includes a clamping part 921 and a first abutting part 922. The mounting body 91 and the filter mechanism 13 together clamp the clamping part 921, and the first abutting part 922 abuts against the first connecting member 22, simultaneously achieving a secure connection between the fourth sealing body 92 and the filter mechanism 13, and providing a good sealing effect for the gap between the first connecting member 22 and the filter mechanism 13.

[0096] For example, the fourth sealing body 92 can be made of an elastic material, thereby achieving a consistently good sealing effect between the fourth sealing body 92 and the movable cavity body 21, and also preventing damage or noise from hard impacts between the fourth sealing body 92 and the first connecting member 22. For example, the elastic material can be made of flexible materials with elasticity such as silicone or rubber.

[0097] In an optional embodiment, Figures 14-16 As shown, when the movable cavity 20 is in the second position extending out of the smoke collection cavity body 10, the first inclined surface 22112 is inclined downward from front to back, the free end 2212 of the first connector 22 is at the high point, and the accommodating groove 2211 is in a state of being higher in the front and lower in the back. The oil temporarily stored in the accommodating groove 2211 can flow back to the smoke collection space 50, and the oil finally flows into the oil cup 300, thereby achieving the final oil recovery effect.

[0098] In an optional embodiment, Figures 14-16 As shown, the first connector 22 includes a second guide section 221 and a third guide section 222 connected to each other. The receiving groove 2211 is opened on the second guide section 221. When the movable cavity 20 is in the second position extending out of the smoke collecting cavity body 10, the third guide section 222 protrudes in the direction away from the corresponding front baffle 11. The third guide section 222 can achieve a better flow effect. The third guide section 222 can guide the oil in the receiving groove 2211 to flow smoothly into the smoke collecting space 50. The oil can be better recovered by the oil cup 300.

[0099] In an optional embodiment, Figures 14-16 As shown, the first connecting plate includes a third diversion section 222, a second diversion section 221, a third diversion section 222 and a first diversion section 223 connected in sequence. When the movable cavity 20 is in the second position, the third diversion section 222 protrudes backward and can divert the oil at the opening 22111 to the interior of the smoke collection cavity body 10.

[0100] Example 4 like Figure 17 and Figure 18 As shown, the structure of the concealed smoke hood 1000 provided in this embodiment is basically the same as that in Embodiment 1 or Embodiment 2. The main difference is that the smoke gathering mechanism 100 also includes a flap 40, which is movably connected to the movable cavity 20. The first drive mechanism 60 can simultaneously move the air inlet 211 forward and downward and open the air inlet 211 with the flap 40. The first drive mechanism 60 can also simultaneously move the air inlet 211 upward and backward and block the air inlet 211 with the flap 40. The synchronous movement of the movable cavity 20 and the flap 40 can be achieved by a single first drive mechanism 60. The structure is simple, energy-saving, and the control of the concealed smoke hood 1000 is simple.

[0101] Specifically, such as Figure 17 and Figure 18 As shown, the smoke collection mechanism 100 also includes a connecting rod 700. The flap 40 is rotatably connected to the movable cavity 20. One end of the connecting rod 700 is rotatably connected to the flap 40, and the other end of the connecting rod 700 is rotatably connected to the first connecting member 22 or the second connecting member 23. With the simple setting of the connecting rod 700, the movement of the first connecting member 22 or the second connecting member 23 can drive the flap 40, thereby realizing the synchronous drive of the flap 40 and the movable cavity 20 by a single first drive mechanism 60.

[0102] In an alternative embodiment, such as Figure 17 and Figure 18 As shown, the first connecting member 22 includes a first hinge point 224, a second hinge point 225, and a third hinge point 226. The first hinge point 224 is rotatably connected to the smoke collection chamber body 10, the second hinge point 225 is rotatably connected to the movable chamber body 21, and the third hinge point 226 is rotatably connected to the connecting rod 700. The connecting rod 700 is rotatably connected to the flap 40 via a fourth hinge point 710, and the flap 40 is rotatably connected to the smoke collection chamber body 10 via a fifth hinge point 41. When the movable chamber 20 is in the second position... When in position, the first hinge point 224, the second hinge point 225, the fifth hinge point 41, the third hinge point 226, and the fourth hinge point 710 are arranged from top to bottom, and the fourth hinge point 710, the fifth hinge point 41, and the third hinge point 226 are arranged from front to back. Through the arrangement of the hinge points, when the first connecting member 22 and the second connecting member 23 flip forward and downward, the first connecting member 22 can drive the flap 40 to flip forward, thereby opening the air inlet 211.

[0103] Example 5 like Figure 19 and Figure 20As shown, the structure of the concealed smoke hood 1000 provided in this embodiment is basically the same as that in embodiment four. The main difference between the two is that the first connecting member 22 is a linkage structure. This first connecting member 22 has a simple structure, small size and light weight. The first driving mechanism 60 only applies a small driving force to achieve effective driving of the movable cavity 20.

[0104] In an optional embodiment, the second connector 23 can also be configured as a linkage, which can further reduce the volume and weight of the movable cavity 20. The first drive mechanism 60 can effectively drive the movable cavity 20 by applying only a small driving force.

[0105] Example 6 like Figure 21 and Figure 22 As shown, the structure of the concealed range hood 1000 provided in this embodiment is basically the same as that in Embodiment 4. The main difference between the two is that: Figure 21 and Figure 22 As shown, the first connecting member 22 includes a first hinge point 224 and a second hinge point 225. The first hinge point 224 is rotatably connected to the smoke collection chamber body 10, and the second hinge point 225 is rotatably connected to the movable chamber body 21. The connecting rod 700 includes a sixth hinge point 720 and a seventh hinge point 730. The sixth hinge point 720 is rotatably connected to the second connecting member 23, and the seventh hinge point 730 is rotatably connected to the flap 40. The flap 40 is rotatably connected to the smoke collection chamber body 10 through an eighth hinge point 42. When the movable chamber 20 is in the first position, the seventh hinge point 730, the eighth hinge point 42, and the sixth hinge point 720 are arranged from front to back. When the movable chamber 20 is in the second position, the eighth hinge point 42, the seventh hinge point 730, and the sixth hinge point 720 are arranged from front to back.

[0106] With the arrangement of the various hinge points described above, when the first connector 22 and the second connector 23 flip forward and downward, the connecting rod 700 rotates clockwise, and the connecting rod 700 drives the flap 40 to rotate clockwise. The first connector 22 can drive the flap 40 to flip forward, thereby opening the air inlet 211.

[0107] Example 7 like Figure 23 As shown, the structure of the concealed smoke hood 1000 provided in this embodiment is basically the same as that in Embodiment 4. The main difference between the two is that the movable cavity body 21 is rotatably connected to the first drive mechanism 60. Through this connection method, the first drive mechanism 60 can also drive the movable cavity 20 to move forward and downward at the same time. This arrangement of the first drive mechanism 60 is suitable for concealed smoke hoods 1000 with small front and middle side spaces of the smoke collection space 50.

[0108] Example 8 like Figure 24 As shown, the structure of the hidden smoke hood 1000 provided in this embodiment is basically the same as that in Embodiment 4. The main difference between the two is that the first connecting member 22 is rotatably connected to the first driving mechanism 60. Through this connection method, the first driving mechanism 60 can also drive the movable cavity 20 to move forward and downward at the same time. This setting method of the first driving mechanism 60 is suitable for hidden smoke hoods 1000 with small rear space in the smoke collection space 50.

[0109] Example 9 like Figure 29 As shown in the flowchart of the control method, this disclosure provides a control method applied to a concealed range hood 1000 as described in any one of Embodiments 1 to 8. The control method includes: S1: Obtain the first location information of heat source 3100 and the second location information of air inlet 211; and S2: Adjust the position of the air inlet 211 along the front-back direction according to the first position information and the second position information, so as to adjust the relative position of the air inlet 211 and the heat source 3100 along the front-back direction, so that the air inlet 211 can be closer to the heat source 3100 along the front-back direction, so that the movable cavity 20 can better adapt to the position of the heat source 3100, and ensure that the air inlet 211 is always directly above the heat source 3100, so as to collect oil fumes to the maximum extent, further improve the smoke exhaust effect of the hidden range hood 1000, achieve a better absorption effect of oil fumes by the air inlet 211, and make the kitchen oil fumes more effectively treated.

[0110] Example 10 like Figure 30 As shown, the control method of this embodiment is a refinement of the control method of Embodiment Nine, and the control method includes: S11: Obtain the first distance L1 between the first reference position J and the second reference position Z along the front-back direction; like Figures 25-29 As shown, the concealed range hood 1000 includes an image detection device 400, which can obtain image information of the heat source 3100 and the air inlet 211 on the stove 3000. The image information includes a first reference position J, a second reference position Z of the heat source 3100 and a third reference position Y of the air inlet 211. The first position information is the first distance L1 between the first reference position J and the second reference position Z in the front-back direction.

[0111] It should be noted that the image detection device 400 can be a camera, an infrared thermal imaging sensor, etc. All devices capable of obtaining the location information of the heat source 3100 and the air inlet 211 are within the protection scope of this optional embodiment.

[0112] For example, the first reference position J can be the center line of the image detection device 400 extending in the left and right direction, the second reference position Z can be the center line of the heat source 3100 extending in the left and right direction, and the third reference position Y can be the center line of the air inlet 211 extending in the left and right direction.

[0113] In other alternative embodiments, the three reference positions can also be other reference lines extending in the left-right direction, which can be set according to actual needs.

[0114] It should be noted that if multiple heat sources 3100 are set, and each heat source 3100 has a second reference position Z, the reference distance L between different heat sources 3100 and the second reference position Z along the front-back direction can be obtained. 11 The first distance L1 is a combination of multiple reference distances L. 11 The average or maximum value is used to achieve precise adjustment of the air inlet 211 for multiple heat sources 3100.

[0115] S12: Obtain the second distance L2 between the first reference position J and the third reference position Y along the front-back direction; like Figures 25-29 As shown, the second position information is the second distance L2 between the first reference position J and the third reference position Y along the front-back direction.

[0116] S21: Compare the first distance L1 with the second distance L2; S22: Adjust the position of the air inlet 211 along the front and rear directions according to the comparison results.

[0117] By comparing the first distance L1 and the second distance L2, the position of the air inlet 211 can be adjusted along the front and rear direction, which can achieve a fast and accurate adjustment of the position of the air inlet 211.

[0118] Specifically, steps S2 include: S221: Compare the difference W between the first distance L1 and the second distance L2 with a first preset value T, wherein the first preset value T > 0: If W > T, control the movable cavity 20 to extend to its maximum extent; The first preset value T > 0, where T is the maximum distance the movable cavity 20 can move back and forth. The range of the first preset value T is 70mm to 150mm. When W > T, the position of the heat source 3100 can be ignored, and the movable cavity 20 can be controlled to extend to its maximum extent. It should be noted that the first preset value T can be a range to avoid the center fluctuation of the heat source 3100 causing the first drive mechanism 60 to start and stop continuously, thus avoiding frequent adjustments of the movable cavity 20 and ensuring the stable use of the concealed range hood 1000.

[0119] If W≤T, then proceed with S222; S222: Determine if the first distance L1 is greater than or equal to the second distance L2: If so, proceed to S223; if Figure 28 As shown, if L1≥L2, it means that the air inlet 211 is in a rear position, and subsequent adjustments need to adjust the position of the air inlet 211 forward. If not, proceed to S224; if Figure 29 As shown, if L1 < L2, it means that the air inlet 211 is in a forward position, and subsequent adjustments need to adjust the position of the air inlet 211 backward.

[0120] S223: Compare the difference W between the first distance L1 and the second distance L2 with the second preset value G, where the first preset value T > the second preset value G > 0. If W > G, drive the movable cavity 20 to move forward and perform S225; like Figure 28 As shown, if W > G, it means that the distance between the air inlet 211 and the heat source 3100 in the front-to-back direction is large. Therefore, it is necessary to drive the movable cavity 20 to move the movable cavity 20 forward to reduce the distance between the air inlet 211 and the heat source 3100 in the front-to-back direction.

[0121] For example, G is a design threshold to prevent the center fluctuation of the heat source 3100 from causing the first drive mechanism 60 to continuously start and stop, thus avoiding frequent adjustments to the movable cavity 20 and ensuring the stable use of the concealed range hood 1000. For example, the value of G ranges from 5mm to 30mm. If W≤G, proceed with S225; If W > G, it means that the distance between the air inlet 211 and the heat source 3100 in the front-to-back direction is small. It can be basically determined that the air inlet 211 is directly above the heat source 3100, and the air inlet 211 can absorb the fumes well.

[0122] S224: Compare the difference W between the first distance L1 and the second distance L2 with -G, where -T < -G ​​< 0: If W < -G, drive the movable cavity 20 to move backward and perform S225; like Figure 29 As shown, if W < -G, it means that the distance between the air inlet 211 and the heat source 3100 in the front-to-back direction is large. Therefore, it is necessary to drive the movable cavity 20 to move the movable cavity 20 backward to reduce the distance between the air inlet 211 and the heat source 3100 in the front-to-back direction.

[0123] If W≥-G, then proceed with S225; If W≥-G, it means that the distance between the air inlet 211 and the heat source 3100 in the front-to-back direction is small. It can be basically determined that the air inlet 211 is directly above the heat source 3100, and the air inlet 211 can absorb the fumes well.

[0124] S225: Determine if -G≤W≤G is satisfied. If so, it means that the air inlet 211 is directly above the heat source 3100, then proceed with S226; If not, there is a certain deviation between the air inlet 211 and the heat source 3100 in the front-to-back direction, and the position of the air inlet 211 needs to be adjusted, then return to S222; S226: Control the active cavity 20 to maintain the current state and return to S221.

[0125] The control method of this embodiment enables rapid and precise adjustment of the air inlet 211, allowing the air inlet 211 to be closer to the heat source 3100 along the front-back direction. This allows the movable cavity 20 to better adapt to the position of the heat source 3100, ensuring that the air inlet 211 is always directly above the heat source 3100. This maximizes the collection of cooking fumes and further enhances the smoke extraction effect of the concealed range hood 1000. The air inlet 211 achieves better absorption of cooking fumes, allowing for more effective treatment of kitchen fumes.

[0126] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A concealed range hood, characterized in that, Includes a smoke collection mechanism (100), said smoke collection mechanism (100) comprising: The smoke collection chamber body (10); and The movable cavity (20) has an air inlet (211) on it. The movable cavity (20) includes a first position that is housed in the smoke collection cavity body (10) and a second position that extends out of the smoke collection cavity body (10). During the process of the movable cavity (20) switching from the first position to the second position, the air inlet (211) moves forward and downward at the same time. The concealed smoke hood further includes a first drive mechanism (60), and the movable cavity (20) includes a movable cavity body (21), a first connector (22) and a second connector (23). The second connector (23) is located behind the first connector (22). The upper ends of the first connector (22) and the second connector (23) are rotatably connected to the smoke collection cavity body (10). The lower ends of the first connector (22) and the second connector (23) are rotatably connected to the movable cavity body (21). The first drive mechanism (60) is rotatably connected to the smoke collection cavity body (10) and the movable cavity (20) respectively. The first connector (22) is a first connecting plate extending in the left-right direction. The first connecting plate includes a first drainage section (223). When the movable cavity (20) is in the first position, the first drainage section (223) is inclined downward from front to back.

2. The concealed range hood according to claim 1, characterized in that, The concealed range hood also includes: The image detection device (400) is capable of acquiring first position information of the heat source (3100) and second position information of the air inlet (211); and The first drive mechanism (60) is configured to adjust the position of the air inlet (211) in the front-back direction according to the first position information and the second position information.

3. The concealed range hood according to claim 1, characterized in that, The position where the upper end of the first connector (22) is rotatably connected to the smoke collection chamber body (10) is the first connection position P, the position where the lower end of the first connector (22) is rotatably connected to the movable chamber body (21) is the second connection position Q, the position where the upper end of the second connector (23) is rotatably connected to the smoke collection chamber body (10) is the third connection position M, and the position where the lower end of the second connector (23) is rotatably connected to the movable chamber body (21) is the fourth connection position N, wherein PQNM form a parallelogram structure.

4. The concealed range hood according to claim 3, characterized in that, The second connector (23) is a connecting rod or a connecting plate extending in the left-right direction.

5. The concealed range hood according to claim 4, characterized in that, The first connector (22) is a first connecting plate. When the movable cavity (20) is in the second position, the first connecting plate protrudes to the rear and a clearance space (227) is formed on the front side of the first connecting plate.

6. The concealed range hood according to claim 5, characterized in that, The first connecting plate includes a second drainage section (221). When the movable cavity (20) is in the second position, the second drainage section (221) is inclined downward from front to back.

7. The concealed range hood according to claim 6, characterized in that, The second drainage section (221) is provided with a receiving groove (2211) having an opening (22111), and when the movable cavity (20) is in the second position, the opening (22111) is oriented upwards; and / or The smoke collection mechanism (100) further includes a first sealing component (90). When the movable cavity (20) is in the first position, the first sealing component (90) is sandwiched between the first connecting plate and the smoke collection cavity body (10). The second drainage section (221), the first sealing component (90), and the air inlets (210) of at least part of the main unit housing (200) are arranged sequentially from front to back; and / or The smoke collection mechanism (100) includes a first sealing element (81), and the second drainage section (221) includes a free end (2212). The first sealing element (81) is always sandwiched between the smoke collection chamber body (10) and the free end (2212); and / or The smoke collection mechanism (100) includes a shielding member (34), and the second drainage section (221) includes a free end (2212). The shielding member (34) is disposed inside the smoke collection chamber body (10) and above the gap between the smoke collection chamber body (10) and the free end (2212); and / or The first connecting plate includes a third drainage section (222), the second drainage section (221), the third drainage section (222) and the first drainage section (223) are connected in sequence. When the movable cavity (20) is in the second position, the third drainage section (222) protrudes backward and can drain the oil at the opening (22111) into the interior of the smoke collection cavity body (10).

8. The concealed range hood according to any one of claims 2 to 7, characterized in that, The smoke collection mechanism (100) further includes a flap (40), which is movably connected to the movable cavity (20). The first drive mechanism (60) can simultaneously move the air inlet (211) forward and downward and open the air inlet (211) with the flap (40). The first drive mechanism (60) can also simultaneously move the air inlet (211) upward and backward and block the air inlet (211) with the flap (40). The smoke collection mechanism (100) further includes a second drive mechanism (62). The flap (40) is movably connected to the movable cavity (20). The second drive mechanism (62) can independently drive the flap (40) to open or block the air inlet (211); or As the movable cavity (20) switches from the first position to the second position, the internal space of the movable cavity (20) increases.

9. A control method, characterized in that, The control method, applied to the concealed range hood as described in any one of claims 1 to 8, comprises: S1: Obtain the first location information of the heat source (3100) and the second location information of the air inlet (211); and S2: Adjust the position of the air inlet (211) along the front-back direction according to the first position information and the second position information, so as to adjust the relative position of the air inlet (211) and the heat source (3100) along the front-back direction.

10. The control method according to claim 9, characterized in that, The concealed smoke hood includes an image detection device (400), which is capable of obtaining image information of the heat source (3100) and the air inlet (211). The image information includes a first reference position J, a second reference position Z of the heat source (3100), and a third reference position Y of the air inlet (211). The first position information is a first distance L1 between the first reference position J and the second reference position Z along the front-back direction, and the second position information is a second distance L2 between the first reference position J and the third reference position Y along the front-back direction. Step S2 includes: S21: Compare the first distance L1 with the second distance L2; and S22: Adjust the position of the air inlet (211) along the front-back direction according to the comparison results.

11. The control method according to claim 10, characterized in that, The steps in S22 include: S221: Compare the difference W between the first distance L1 and the second distance L2 with a first preset value T, wherein the first preset value T > 0: If W > T, control the active cavity (20) to extend to the maximum extent; if W ≤ T, then proceed to S222; S222: Determine whether the first distance L1 is greater than or equal to the second distance L2: if yes, proceed to S223; if no, proceed to S224. S223: Compare the difference W between the first distance L1 and the second distance L2 with the second preset value G, wherein the first preset value T > the second preset value G > 0: If W > G, drive the active cavity (20) to move forward and proceed to S225; if W ≤ G, then proceed to S225. S224: Compare the difference W between the first distance L1 and the second distance L2 with -G, where -T < -G ​​< 0: If W < -G, drive the active cavity (20) to move backward and proceed to S225; if W ≥ -G, then proceed to S225. S225: Determine if -G≤W≤G is satisfied: If yes, proceed to S226; otherwise, return to S222. S226: Control the active cavity (20) to maintain the current state and return to S221.

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