Island range hood

Abstract

The invention belongs to the technical field of kitchen appliances, and discloses a middle island type range hood which comprises a fan module, a smoke collecting module and an air duct module connected between the fan module and the smoke collecting module, the air duct module comprises two sets of air duct assemblies arranged at intervals, and the air duct assemblies can stretch, retract and ascend and descend in the vertical direction; the smoke collecting module is arranged below the air duct module, a smoke collecting cavity is formed in the smoke collecting module and provided with two communicating ports, and each communicating port correspondingly communicates with one air duct assembly; when the air duct assembly ascends and descends, the smoke collecting module is synchronously driven to ascend and descend. The air duct module of the island type range hood can reduce the shielding space and visual obstruction to a user, also avoids shielding of light right above the island platform, and can adjust the height of the smoke collection module according to the state of oil smoke generated by cooking to reduce oil smoke escape, so that the use experience of the user is improved.

Description

Technical Field

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

[0002] An island-style range hood is a suspended range hood mounted on the ceiling above a bar or island counter, suspended on all four sides, used to extract cooking fumes from the area above the counter or island. Existing island-style range hoods typically include a fan assembly, an air duct, and a smoke collection assembly. The fan assembly consists of a main casing and a fan housed within it. The main casing is located above the ceiling. The top of the air duct connects to the main casing, and the bottom connects to the smoke collection assembly, which extracts cooking fumes. Due to the significant distance between the fan and the smoke collection assembly, the risk of fume escape is high. Therefore, the air duct is designed as a cylindrical structure to create a larger internal space, and rotating, opening and closing smoke-collecting plates are installed on both sides of the smoke collection assembly. In an open environment, the cylindrical air duct structure occupies a large space, obstructs light above the bar or island counter, affects the overall appearance of the machine, and hinders the user's visual experience, thus impacting the user experience. Summary of the Invention

[0003] The purpose of this invention is to provide an island-style range hood that solves the problems of existing island-style range hoods where the cylindrical duct structure occupies a large space, blocks light, affects the overall appearance of the machine, and hinders the user's visual experience.

[0004] To achieve this objective, the present invention employs the following technical solution:

[0005] A central island-style range hood is provided, including a fan module, a smoke collection module, and a duct module connected between the fan module and the smoke collection module. The duct module includes two sets of spaced-apart duct components, which can extend, retract, and rise and fall vertically.

[0006] The smoke collection module is located below the air duct module. The smoke collection module has a smoke collection chamber with two connecting ports, each of which is connected to one of the air duct components.

[0007] When the air duct assembly is raised or lowered, the smoke collection module is raised or lowered simultaneously.

[0008] In one embodiment, the smoke collection module includes a smoke collection hood body, a smoke collection plate, and a guide plate. The smoke collection plate extends circumferentially along the smoke collection hood body, and the vertical projection of the smoke collection plate is larger than that of the smoke collection hood body. The guide plate is located below the smoke collection plate at least in the working state and is positioned directly opposite the communication port.

[0009] In one embodiment, the guide plate is vertically connected to the lower part of the smoke collection hood body and has a first position for closing the smoke collection chamber and a second position for opening the smoke collection chamber. The lifting stroke of the guide plate is less than the lifting stroke of the air duct assembly.

[0010] In one embodiment, when the guide plate is in the first position, it is flush with or not lower than the smoke collecting plate; when the guide plate is in the second position, the distance between the guide plate and the smoke collecting plate is greater than the height of the smoke hood body.

[0011] In one embodiment, the fan module includes an auxiliary air box arranged in a horizontal direction, a fan housing, and a fan disposed in the fan housing. The two ends of the auxiliary air box are respectively connected to the air duct module and the fan housing. The bottom of the auxiliary air box has two auxiliary connection ports, and the two auxiliary connection ports are respectively connected to one of the air duct components.

[0012] In one embodiment, the fan module further includes a connecting pipe that connects the auxiliary air box and the fan housing, and the connecting pipe is a retractable pipe; and / or,

[0013] The smoke collection chamber is equipped with a first filter component; and / or,

[0014] The auxiliary air box is equipped with a second filter component at its air outlet.

[0015] In one embodiment, the fan is horizontally disposed inside the fan housing and close to the top plate of the fan housing. The connecting pipe connects the auxiliary air box and the fan housing. The axial end faces of the fan are arranged vertically and each has an air inlet. An air outlet is disposed on the periphery of the fan. Among the axial end faces of the fan, the upper end face of the fan is gradually inclined upward from the air inlet to the air outlet.

[0016] In one embodiment, the duct assembly includes a slidingly fitted first sleeve and a second sleeve, the first sleeve being connected to the fan module and the second sleeve being connected to the smoke collection module;

[0017] The air duct module also includes an air duct telescopic drive assembly, which includes a motor, a drive shaft, and two push rod components that correspond one-to-one with the air duct assembly. The drive shaft is connected to the output end of the motor, and the two push rod components are simultaneously connected to the drive shaft. The output end of the push rod component is connected to the second sleeve. The motor can drive the two push rod components to telescopically extend and retract synchronously through the drive shaft, so that the second sleeve rises and falls relative to the first sleeve.

[0018] In one embodiment, the second sleeve is fitted over the first sleeve. The second sleeve includes a sheet metal part and a glass panel. The sheet metal part is U-shaped, and the openings of the two sheet metal parts are arranged opposite to each other. The glass panel is detachably connected to the opening of the sheet metal part.

[0019] In one embodiment, the second sleeve further includes a reinforcing member located at the opening of the sheet metal part and connected between the inner walls of opposite sides of the sheet metal part; and / or,

[0020] One of the sheet metal part and the glass panel is provided with a first hook with an upward opening, and the other is provided with a second hook with a downward opening; the first hook is inserted and hooked onto the second hook; and / or,

[0021] A sliding seal is provided between the bottom end of the first sleeve and the second sleeve, and the sliding seal is arranged around the circumference of the first sleeve.

[0022] In one embodiment, the smoke hood body includes an upper hood and a lower hood arranged vertically. The upper hood is connected to the bottom of the air duct module. The smoke collection plate is annular. A portion of the lower hood passes through the annular hole of the smoke collection plate and connects to the upper hood, so as to sandwich the smoke collection plate between the upper hood and the lower hood.

[0023] In one embodiment, the smoke hood body further includes a lower reinforcing rib assembly, which comprises a plurality of lower reinforcing ribs arranged sequentially along the circumference of the lower hood body. Each lower reinforcing rib includes a horizontal plate and a vertical plate connected perpendicularly. The horizontal plate is connected to the lower hood body, and the inner wall of the annular hole abuts against the vertical plate to limit the smoke collecting plate; and / or,

[0024] A first buffer element is provided between the upper cover and the smoke collection plate; and / or,

[0025] A second buffer is provided between the lower cover and the smoke collection plate; and / or,

[0026] The main body of the smoke collection hood also includes an upper reinforcing rib group, which includes a first upper reinforcing rib and a second upper reinforcing rib. A plurality of the first upper reinforcing ribs and a plurality of the second upper reinforcing ribs are arranged alternately along the circumference of the upper hood and connected end to end in sequence.

[0027] In one embodiment, the island-style range hood further includes a light module circumferentially arranged around the smoke collection plate. The light module includes an annular frame and a light assembly. The annular frame is connected to the circumferential edge of the smoke collection plate and has a bottom opening. The light assembly is housed in the annular frame, and the light emitted by the light assembly can be emitted from the bottom opening. A transparent light cover is detachably sealed to the bottom opening of the annular frame.

[0028] In one embodiment, the smoke collection module further includes a lifting drive mechanism, the output end of which is connected to the guide plate. The lifting drive mechanism is configured to drive the guide plate to switch between a first position where the smoke collection chamber is closed and a second position where the smoke collection chamber is open.

[0029] In one embodiment, the lifting drive mechanism includes a telescopic sleeve assembly, which includes at least two sleeves arranged sequentially from top to bottom and capable of being nested in sequence. The uppermost sleeve is connected to the smoke hood body, and the lowermost sleeve is connected to the guide plate. Any two adjacent sleeves have an overlapping state and an staggered unfolding state.

[0030] In one embodiment, the telescopic sleeve assembly includes three sleeves, which are arranged from top to bottom as an upper sleeve, a middle sleeve, and a lower sleeve. The lifting drive mechanism also includes a crossbar assembly and a guide rod assembly.

[0031] The crossbar assembly includes a first connecting rod and a second connecting rod hinged at the middle. The first hinged end of the first connecting rod is hinged to the upper sleeve, and the first sliding end of the first connecting rod is hinged and slidably connected to the guide plate. The second hinged end of the second connecting rod is hinged to the lower sleeve, and the second sliding end of the second connecting rod is hinged and slidably connected to the upper sleeve. The first hinged end and the second hinged end are spaced apart in the vertical direction, and the first sliding end and the second sliding end are also spaced apart in the vertical direction.

[0032] The guide rod assembly includes two first guide rods, the first ends of which are hinged to each other and to the intermediate sleeve, and the second ends of which are respectively hinged to the first connecting rod and the second connecting rod, and the first connecting rod, the second connecting rod and the two first guide rods form a rhombus.

[0033] The beneficial effects of this invention are:

[0034] The island-style range hood provided by this invention includes a fan module, a smoke collection module, and a duct module connecting the fan module and the smoke collection module. The duct module includes two sets of spaced-apart duct components, which can extend, retract, and rise vertically. The fan module is located above the ceiling, and the smoke collection module is located below the duct module and above the island counter. When the duct components rise and fall, the smoke collection module rises and falls synchronously. The smoke collection module has a smoke collection chamber with two connecting ports, each connecting to a duct component, forming a connection between the smoke collection chamber and the interior of the duct components. Under the suction of the fan module, the cooking fumes flow from the smoke collection module to the duct module, and are divided into two streams that flow upwards along the two sets of duct components until they enter the fan module and are finally discharged outdoors. This design, with its two sets of spaced-apart duct components, reduces obstruction of space and visual obstruction for the user while ensuring the duct volume. The two sets of spaced-apart air duct components also prevent light blockage directly above the island, ensuring the island receives sufficient bright operating light and enhancing the user experience. Simultaneously, the vertically retractable and height-adjustable air duct components raise and lower the smoke collection module to meet different usage height requirements. The height of the smoke collection module can be adjusted according to the cooking fume levels, creating a three-dimensional smoke collection effect and reducing fume escape to ensure the island-style range hood's effective fume extraction. Attached Figure Description

[0035] Figure 1 This is an installation diagram of the island-style range hood described in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the island-style range hood described in an embodiment of the present invention;

[0037] Figure 3 This is a structural disassembly diagram of the fan module described in an embodiment of the present invention;

[0038] Figure 4 This is a cross-sectional view of the island-style range hood described in an embodiment of the present invention along one direction;

[0039] Figure 5 yes Figure 4 A magnified schematic diagram of a portion of the structure in section A.

[0040] Figure 6 This is a cross-sectional view of the island-style range hood described in an embodiment of the present invention along another direction;

[0041] Figure 7 yes Figure 6 Enlarged schematic diagram of a local structure in section B;

[0042] Figure 8 This is a schematic diagram of the structure of the first filter component according to an embodiment of the present invention;

[0043] Figure 9 This is a structural cross-sectional view of the fan casing and fan as described in the embodiment of the present invention;

[0044] Figure 10 This is a schematic diagram of the structure of the second end plate according to an embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of the structure of some of the auxiliary bellows and air duct modules described in an embodiment of the present invention;

[0046] Figure 12 This is a structural schematic diagram of the air duct module described in an embodiment of the present invention.

[0047] Figure 13 This is a structural disassembly diagram of the air duct module described in an embodiment of the present invention;

[0048] Figure 14 This is a partial structural schematic diagram of the air duct telescopic drive assembly described in an embodiment of the present invention;

[0049] Figure 15 This is a top view of the smoke collection module described in an embodiment of the present invention;

[0050] Figure 16 This is a cross-sectional view of the smoke collection module described in an embodiment of the present invention;

[0051] Figure 17 yes Figure 16 A magnified schematic diagram of a portion of the structure in section C;

[0052] Figure 18 This is a schematic diagram of the structure of the upper cover body according to an embodiment of the present invention;

[0053] Figure 19 This is a schematic diagram of the structure of the lower cover body according to an embodiment of the present invention;

[0054] Figure 20 This is a schematic diagram of the upper reinforcing rib assembly described in an embodiment of the present invention;

[0055] Figure 21 This is a schematic diagram of the structure of the lamp module and smoke collection plate according to an embodiment of the present invention;

[0056] Figure 22 These are schematic diagrams of the structure described in the embodiments of the present invention and partial structural disassembly diagrams of the smoke collection module;

[0057] Figure 23 yes Figure 22 Enlarged schematic diagram of a local structure in section D;

[0058] Figure 24This is a partial structural disassembly diagram of the control panel module and smoke collection module described in an embodiment of the present invention;

[0059] Figure 25 This is a partially enlarged structural diagram of the smoke collection module described in an embodiment of the present invention;

[0060] Figure 26 This is a structural disassembly diagram of the smoke collection module described in an embodiment of the present invention;

[0061] Figure 27 yes Figure 26 A magnified schematic diagram of a portion of the structure in section E;

[0062] Figure 28 This is a schematic diagram of the lifting drive mechanism described in an embodiment of the present invention;

[0063] Figure 29 This is a schematic diagram of the connecting bracket according to an embodiment of the present invention;

[0064] Figure 30 This is a partial structural disassembly diagram of the air purification module and smoke collection module described in an embodiment of the present invention;

[0065] Figure 31 This is a partial structural schematic diagram of the smoke collection module described in an embodiment of the present invention.

[0066] In the picture:

[0067] 10. Fan module; 11. Auxiliary air box; 111. Auxiliary connection port; 112. Auxiliary air box outlet; 113. Lower housing; 114. Top cover; 115. Reinforcing seat; 116. Motor mounting beam; 12. Fan housing; 121. Top plate; 122. Air inlet connection port; 123. Air outlet connection port; 125. Bottom cover; 1251. Edge retainer; 126. First end plate; 127. Second end plate; 1271. Oil guide slope; 1272. Oil collection groove; 12 81. Crossbeam; 1282. Fan mounting bracket; 13. Fan; 131. Air inlet; 132. Air outlet; 133. Upper end face; 134. Fan rotor motor; 14. Connecting pipe; 141. Flexible pipe body; 142. First adapter; 143. Second adapter; 15. First filter assembly; 151. First filter screen; 152. Frame bracket; 1521. Positioning bracket; 1522. Protruding sleeve; 153. Snap-fit ​​component; 16. Second filter assembly;

[0068] 20. Smoke collection module; 201. Smoke collection chamber; 202. Connecting port; 21. Main body of smoke collection hood; 211. Upper hood; 2111. First smoke inlet; 2112. Side panel; 21121. First mounting hole; 21122. Second mounting hole; 2113. Maintenance opening; 2114. First flange; 2115. Mounting flange; 212. Lower hood; 2121. Second smoke inlet; 2122. Second flange; 213. Lower reinforcing rib; 2131. Horizontal plate; 2132. Vertical plate; 214. 215. Buffer component; 216. Second buffer component; 217. Upper reinforcing rib assembly; 218. First upper reinforcing rib; 219. Second upper reinforcing rib; 22. Snap-fit ​​hole; 23. Maintenance cover; 24. Connecting inlet; 25. Connecting outlet; 26. Smoke collecting plate; 27. Wiring avoidance notch; 28. Annular hole; 29. ​​Guide plate; 20. Oil receiving groove; 21. Through port; 20. Lifting drive mechanism; 21. Telescopic sleeve assembly; 24.11. Upper sleeve; 24.12. Intermediate sleeve; 413. Lower sleeve; 242. Crossbar assembly; 2421. First connecting rod; 24211. First hinged end; 24212. First sliding end; 2422. Second connecting rod; 24221. Second sliding end; 24222. Second hinged end; 243. Guide rod assembly; 2431. First guide rod; 2432. Second guide rod; 244. Lifting drive component; 245. Mounting bracket; 2451. First connecting lug; 2461. First drive rod; 2462. First transmission rod; 2463. Second transmission rod; 2464, Third transmission rod; 2471, First bracket; 24711, First slide groove; 2472, Second bracket; 2473, Third bracket; 2474, Fourth bracket; 24741, Second slide groove; 248, Mounting bracket; 2481, Guide groove; 2482, Snap-on groove; 25, Fixed bracket; 251, Snap-on; 252, Mounting groove; 26, Connecting bracket; 261, Bracket body; 262, Second connecting ear; 263, Second connecting plate; 264, Third connecting plate;

[0069] 30. Air duct module; 31. Air duct assembly; 311. First sleeve; 3111. Sleeve bending and flanging; 312. Second sleeve; 3121. Sheet metal part; 3122. Glass panel; 3123. Reinforcing member; 3124. First hook; 3125. Second hook; 3126. Sliding seal; 313. Limiting fold; 314. Fixed slide rail; 315. Sliding track; 32. Air duct telescopic drive assembly; 321. Motor; 322. Drive shaft; 323. Push rod assembly; 3231. First gear; 3232. Second gear; 3233. Lead screw; 3234. Lifting sleeve rod; 3235. First square tube; 3236. Second square tube; 3237. Connector;

[0070] 40. Lamp module; 41. Circular frame; 411. Strip frame; 412. Rounded corners; 4121. Connector; 42. Lamp assembly; 43. Transparent lamp cover; 44. Wiring cover;

[0071] 50. Control panel module; 51. Operation glass panel; 52. Control board; 53. Snap-fit ​​buckle; 54. Control board bracket;

[0072] 60. Air purification module; 61. Purification inlet; 62. Purification outlet;

[0073] 70. Gesture control module;

[0074] 100. Island counter; 200. Suspended ceiling. Detailed Implementation

[0075] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0076] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0078] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0079] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0080] like Figure 1 and Figure 2 As shown, this invention provides a central island range hood, which includes a fan module 10, a smoke collection module 20, and a duct module 30 connecting the fan module 10 and the smoke collection module 20. The duct module 30 includes two sets of spaced-apart duct components 31, which can extend, retract, and rise vertically. The fan module 10 is positioned above the ceiling 200, and the smoke collection module 20 is positioned below the duct module 30 and above the island 100. When the duct components 31 rise or fall, the smoke collection module 20 rises or falls synchronously. The smoke collection module 20 has a smoke collection chamber 201, which has two connecting ports 202. Each connecting port 202 connects to one duct component 31, forming a connection between the smoke collection chamber 201 and the interior of the duct components 31. Under the suction of the fan module 10, the cooking fumes flow through the smoke collection module 20 to the air duct module 30, and are divided into two streams that flow upward along the two sets of air duct components 31 until they enter the fan module 10 and are finally discharged outdoors.

[0081] The island-style range hood provided in this embodiment, through two sets of spaced-apart duct components 31, reduces obstruction space and visual obstruction for the user while ensuring duct volume. The two sets of spaced-apart duct components 31 also avoid blocking light directly above the island 100, allowing the island 100 to receive sufficiently bright operating light and improving the user experience. Simultaneously, the vertically retractable and height-adjustable duct components 31 allow for the raising and lowering of the smoke collection module 20 to meet different usage height requirements. The height of the smoke collection module 20 can be adjusted according to the state of cooking fumes, creating a three-dimensional smoke collection effect and reducing fume escape to ensure the effective fume extraction of the island-style range hood.

[0082] In one embodiment, the smoke collection module 20 includes a smoke collection hood body 21, a smoke collection plate 22, and a guide plate 23. The smoke collection plate 22 extends circumferentially along the smoke collection hood body 21, and its vertical projection is larger than that of the smoke collection hood body 21. The larger smoke collection plate 22 effectively collects any escaping fumes that may form around the smoke collection hood body 21, improving smoke collection efficiency. The guide plate 23 is located below the smoke collection plate 22, at least during operation, and is positioned directly opposite the connection port 202. The guide plate 23 has a guiding effect, directing fumes into the smoke collection hood body 21, and also shields the connection port 202, preventing oil stains in the duct assembly 31 from dripping through the connection port 202 onto the island platform 100 below. The smoke collection hood body 21, the surrounding smoke collection plates 22, and the guide plate 23 below form a more three-dimensional smoke collection area, further reducing the risk of fumes escaping.

[0083] Optionally, the smoke collection plate 22 is made of glass, which improves the smoke collection effect while reducing the obstruction of light above. The area below the smoke collection module 20 has a brighter cooking environment, improving the user's comfort.

[0084] In one embodiment, the baffle 23 is vertically connected to the lower part of the fume hood body 21 and has a first position with the fume collection chamber 201 closed and a second position with the fume collection chamber 201 open. The vertical stroke of the baffle 23 is less than the vertical stroke of the air duct assembly 31. In the second position, the baffle 23 is in working condition, the fume collection chamber 201 is open, and the baffle 23 guides the fumes into the fume collection chamber 201. In the first position, the baffle 23 closes the fume collection chamber 201 to prevent backflow of fumes in the air duct assembly 31. The vertical stroke of the baffle 23 is less than the vertical stroke of the air duct assembly 31 to avoid excessive vertical stroke affecting the cooking operation space below.

[0085] In its first position, the guide plate 23 is flush with or no lower than the smoke collecting plate 22, resulting in a more aesthetically pleasing appearance and preventing it from protruding from the smoke collecting plate 22. In its second position, the distance between the guide plate 23 and the smoke collecting plate 22 is greater than the height of the smoke hood body 21. This means the lifting height of the guide plate 23 is greater than the height of the smoke hood body 21. The lifting height of the guide plate 23 compensates for the slightly smaller height of the smoke hood body 21, effectively extending the smoke collecting chamber 201 downwards above the guide plate 23 while still maintaining good smoke collection. Furthermore, the slightly smaller height of the smoke hood body 21 facilitates a thinner and lighter design, reduces light obstruction, and enhances its aesthetic appeal.

[0086] In one embodiment, the fan module 10 includes an auxiliary air box 11 arranged horizontally and a fan 13 disposed within a fan housing 12. The two ends of the auxiliary air box 11 are connected to a ventilation duct module 30 and the fan housing 12, respectively. Two auxiliary connection ports 111 are opened at the bottom of the auxiliary air box 11, each corresponding to a duct assembly 31. The oil fume airflow flowing within the duct assembly 31 first enters the auxiliary air box 11 and then enters the fan housing 12. The auxiliary air box 11 serves as a buffer and turning area. On the one hand, it extends the distance between the fan housing 12 and the smoke collection module 20, thereby increasing the sound propagation distance. When sound waves propagate in the channel, they absorb and consume sound energy through air friction and friction on the inner wall of the channel, which helps to attenuate the sound. The longer the channel, the more this friction loss occurs, and the less sound is transmitted to the outside, which helps to reduce noise. At the same time, when the airflow flows in the long straight channel, it has more distance and time to develop from turbulent flow to more stable laminar flow. The more stable the airflow, the fewer eddies and pressure fluctuations are generated, reducing the noise generated by eddies, and therefore the noise is also lower. Furthermore, the fan 13 is located inside the fan housing 12 and does not occupy the space inside the auxiliary air box 11, making the air intake smoother. On the other hand, the auxiliary air box 11 can integrate the two streams of oil fume airflow in the two air duct components 31, so that the oil fume airflow merges and then flows to the fan housing 12, further improving the smoothness of the air intake of the fan 13.

[0087] The fan module 10 also includes a connecting pipe 14, which connects the auxiliary air box 11 and the fan housing 12. The connecting pipe 14 is a telescopic pipe. The distance between the auxiliary air box 11 and the fan housing 12 can be adjusted through the telescopic connecting pipe 14 to adapt to the installation environment and further extend the distance between the fan housing 12 and the smoke collection module 20. The connecting pipe 14 includes a flexible pipe body 141, a first adapter 142, and a second adapter 143. The first adapter 142 and the second adapter 143 are connected to opposite ends of the flexible pipe body 141. The first adapter 142 is snapped and / or screwed to the auxiliary air box 11, and the second adapter 143 is snapped and / or screwed to the fan housing 12. The flexible tube 141 is a tube with an extendable length, allowing adjustment of the overall length of the connecting pipe 14. The first adapter 142 and the second adapter 143 are rigid adapters, such as plastic adapters, enabling a stable connection between the two adapters and the auxiliary air box 11 and the fan housing 12, respectively. Both ends of the flexible tube 141 are fixedly connected to the first adapter 142 and the second adapter 143 using adhesive and screws, resulting in a stable and well-sealed connection.

[0088] In one embodiment, such as Figure 3 and Figure 4As shown, a first filter assembly 15 is installed in the smoke collection chamber 201, and a second filter assembly 16 is installed at the auxiliary air box outlet 112 of the auxiliary air box 11. Along the direction of oil fume flow, the airflow passes through the first filter assembly 15 and the second filter assembly 16 successively, forming a two-stage filtration, which greatly reduces the pollutant particles in the oil fume passing through the fan 13, thereby reducing the pollution caused by oil stains in the oil fume randomly adhering to the fan 13. This avoids problems such as decreased suction, noise, vibration, and abnormal heating of the fan 13 due to excessive oil stains accumulation. On the other hand, it can also reduce the cleaning and maintenance cycle of the fan 13, improving the user's convenience while ensuring reliable oil fume extraction.

[0089] The first filter assembly 15, located at the connection port 202, performs primary filtration of the oil fumes, reducing oil adhesion inside the fan housing 12. During its flow, the oil fumes enter the auxiliary air box 11. The auxiliary air box 11 acts as a buffer and turning area, forcing the oil fumes to change their flow direction. The oil fumes slow down during this turning, and heavier, larger oil droplets directly impact the inner wall of the auxiliary air box 11 due to inertia, reducing the amount of large oil droplets carried by the airflow through the fan 13. Furthermore, after a longer flow path, the oil fumes encounter a second filter assembly 16, detachably located at the outlet 112 of the auxiliary air box. The second filter assembly 16 performs secondary filtration, buffering the unstable airflow within the oil fumes, making the unstable airflow inside the fan housing 12 more stable, thus flowing evenly towards the fan 13, reducing eddies and turbulence within the fan 13, and minimizing random oil fume adhesion caused by turbulence. The second filter component 16 is cleverly positioned so that it does not affect the space inside the auxiliary air box 11 or the space inside the fan casing 12.

[0090] In one embodiment, the first filter assembly 15 includes at least two layers of first filter screens 151. Since the first filter assembly 15 is located at the communication opening 202 of the fume hood body 21, serving as the first filtration site for oil fumes, the arrangement of at least two layers of first filter screens 151 can improve the filtration and adsorption capacity. There are various ways to arrange the at least two layers of first filter screens 151. In one embodiment, the first filter screens 151 are wavy. Wavy first filter screens 151 can increase the contact area with oil fumes, maximizing the filtration and adsorption capacity within the limited filtration channel. Figure 5 As shown, the two layers of first filter plates 151 are arranged in a cross pattern, with the trough of one layer of first filter plate 151 corresponding to the peak of the other layer of first filter plate 151. This cross structure increases the effective adsorption surface area and forms a maze-like interception path, which has a three-dimensional filtration and interception effect, reducing the concentration of oil droplets carried by the airflow entering the air duct assembly 31.

[0091] After prolonged use, the filtration and adsorption performance of the first filter plate 151 will decrease, and it can be replaced by disassembling and reassembling the first filter assembly 15. Figures 6 to 8 As shown, specifically, the first filter assembly 15 includes a frame bracket 152 and a first filter screen 151 disposed on the frame bracket 152. The frame bracket 152 is embedded in the connecting opening 202, and the first filter screen 151 can cover the entire connecting opening 202, reducing the possibility of oil fumes entering the air duct assembly 31 directly without filtration. One end edge of the frame bracket 152 is provided with a snap-fit ​​member 153, which is formed by sheet metal bending, and the processing technology is relatively simple. One or more snap-fit ​​members 153 can be provided, and the corresponding number of snap-fit ​​holes 217 on the fume hood body 21 can be opened. The installation of the first filter assembly 15 is achieved through a snap-fit ​​structure, which is relatively convenient and can be installed and removed without special tools.

[0092] The air duct assembly 31 is inserted into the connecting port 202. The inner wall of the air duct assembly 31 has a limiting flange 313. The frame bracket 152 is embedded in the connecting port 202. A snap-fit ​​member 153 is located at one end of the frame bracket 152, and the other end of the frame bracket 152 away from the snap-fit ​​member 153 is magnetically connected to the limiting flange 313. When installing the first filter assembly 15, the first filter assembly 15 is tilted downwards from one side of the snap-fit ​​member 153 to the other, facilitating the insertion of the snap-fit ​​member 153 into the snap-fit ​​hole 217. Then, the other side of the first filter assembly 15 away from the snap-fit ​​member 153 is raised into the smoke collection channel 13 until the other end of the frame bracket 152 away from the snap-fit ​​member 153 is magnetically connected to the limiting flange 313. The disassembly and assembly sequence is the reverse of the installation sequence described above. These two connections make the installation of the first filter assembly 15 more reliable and the disassembly and assembly method more convenient, requiring no special tools.

[0093] To achieve the magnetic connection between the frame bracket 152 and the limiting flange 313, one of the frame bracket 152 and the limiting flange 313 is provided with a magnetic element, and the other is provided with a magnetic attraction element. Specifically, in one embodiment, the frame bracket 152 is provided with two positioning brackets 1521, which are welded to the frame bracket 152. The two positioning brackets 1521 are sandwiched on both sides of the first filter assembly 15 and connected to the metal frame of the first filter assembly 15 by fasteners such as screws. The positioning bracket 1521 is provided with a protruding sleeve 1522 as a magnetic attraction element, and a magnet or other magnetic element is installed on the limiting flange 313.

[0094] In one embodiment, to accommodate the limited height space above the suspended ceiling 200, the fan 13 is horizontally positioned within the fan housing 12 and close to the upper top plate 121 of the fan housing 12. A connecting pipe 14 connects the auxiliary air box 11 and the fan housing 12. The fan 13 is a dual-sided air intake fan. The axial end faces of the fan 13 are arranged vertically and each has an air inlet 131. An air outlet 132 is provided on the periphery of the fan 13. Of the axial end faces of the fan 13, the upper end face 133 gradually slopes upwards from the air inlet 131 towards the air outlet 132. By slightly tilting the upper end face 133 of the fan 13 at a certain angle, while ensuring sufficient air intake at the lower air inlet 131, the air intake channel between the upper air inlet 131 and the upper top plate 121 of the fan casing 12 can be further increased. This simultaneously takes into account the air intake on both the upper and lower sides, which is conducive to increasing the total air intake of the fan 13, thereby improving the smoke exhaust effect and reducing noise.

[0095] Optionally, such as Figure 9 As shown, the fan housing 12 has an air inlet 122 and an air outlet 123 at its air inlet and outlet ends, respectively. The vertical distance from the center of the air inlet 122 to the top surface of the fan housing 12 is defined as L1, and the vertical distance from the center of the air outlet 123 to the top surface of the fan housing 12 is defined as L2, where L1 > L2. In other words, the air inlet 122 is centrally located, and the air outlet 123 is positioned higher than the air inlet 122. This allows for the fan 13 to be installed higher and can be arranged at an angle, facilitating the rapid and close flow of air into the upper air inlet 131. This increases the airflow into the upper air inlet 131 without affecting the airflow into the lower air inlet 131, thus simultaneously balancing the airflow from both sides and improving the overall airflow of the fan 13.

[0096] Looking back Figure 3 As shown, the auxiliary air box 11 includes a lower housing 113 and a top cover 114. The top cover 114 and the lower housing 113 are arranged vertically, and the top cover 114 is detachably connected to the lower housing 113. The detachable connection of the top cover 114 of the auxiliary air box 11 facilitates maintenance of the air duct extension drive assembly 32 of the air duct assembly 31 inside the auxiliary air box 11, and removing the top cover 114 will not affect the air duct assembly 31 below. The top cover 114 can be connected to the lower housing 113 by clips and / or screws.

[0097] In one embodiment, such as Figure 3As shown, the fan housing 12 includes an upper top plate 121, a bottom cover 125, a first end plate 126, and a second end plate 127. The upper top plate 121 is U-shaped with its opening facing downwards. The bottom cover 125 is detachably connected to the bottom of the upper top plate 121. The first end plate 126 is detachably connected to the left end of the upper top plate 121 and the bottom cover 125 along the horizontal direction, and is also connected to a second adapter 143. The second end plate 127 is detachably connected to the right end of the upper top plate 121 and the bottom cover 125 along the horizontal direction. The first end plate 126 has the aforementioned air inlet 122, and the second end plate 127 has the aforementioned air outlet 123. The bottom cover 125 of the fan housing 12 is detachable, facilitating maintenance of the fan 13 inside the fan housing 12. When the fan 13 needs maintenance, simply remove the corresponding ceiling 200 below the bottom cover 125, and then remove the bottom cover 125. There is no need to move the auxiliary air box 11 or the connecting pipe 14. The upper top plate 121, bottom cover 125, first end plate 126, and second end plate 127 can be riveted together. The upper top plate 121 uses a pressed shape to enhance its structural strength.

[0098] In one embodiment, such as Figure 3 As shown, the bottom cover 125 has an upward-protruding baffle 1251, which is used to block oil stains, allowing the bottom cover 125 to collect oil stains from the inner or outer wall of the fan housing 12. Since the air outlet port of the fan 13's volute is connected to the second end plate 127, the second end plate 127 is prone to accumulating a lot of oil stains. To guide the oil stains, the second end plate 127 has an oil-guiding slope 1271, such as... Figure 10 As shown, the oil guiding slope 1271 is located below the air outlet 123, forming an angle with the vertical surface. An oil collecting groove 1272 is provided at the bottom of the oil guiding slope 1271, extending vertically to create a large oil storage space. The oil guiding slope 1271 guides the oil to flow directionally towards the oil collecting groove 1272. A retaining edge 1251 surrounds the opening of the oil collecting groove 1272, ensuring that the oil accumulates within the groove and does not contaminate other areas.

[0099] Two crossbeams 1281 are fixed inside the fan housing 12. Fan mounting brackets 1282 are connected to the two crossbeams 1281, and the fan motor 134 is connected to the fan mounting brackets 1282. The fan mounting brackets 1282 are fixed structures that support the fan motor 134. In order to ensure the operation of the fan motor 134 and the stability of the entire fan 13, additional crossbeams 1281 are added. The fan mounting brackets 1282 and crossbeams 1281 are first fixed together with screws to form a small component. Then, the small component is fixed to the top plate 121 of the fan housing 12, and then the fan motor 134 and other structural components of the fan 13 are installed.

[0100] In one embodiment, to achieve the telescopic and lifting movement of the duct assembly 31, the duct assembly 31 includes a first sleeve 311 and a second sleeve 312 that are slidably fitted together. The first sleeve 311 is connected to the fan module 10, and the second sleeve 312 is connected to the smoke collection module 20. The duct module 30 also includes a duct telescopic drive assembly 32, which includes a motor 321, a drive shaft 322, and two push rod components 323 that correspond one-to-one with the duct assembly 31. The drive shaft 322 is connected to the output end of the motor 321, and the two push rod components 323 are simultaneously connected to the drive shaft 322. The output end of the push rod component 323 is connected to the second sleeve 312. The motor 321 can drive the two push rod components 323 to telescopically extend and retract synchronously through the drive shaft 322, so that the second sleeve 312 rises and falls relative to the first sleeve 311.

[0101] During use, the motor 321 drives the transmission shaft 322 to rotate. The transmission shaft 322 is connected to two push rod components 323, enabling the extension and retraction of the output ends of the two push rod components 323. Since the output end of each push rod component 323 is connected to the corresponding second sleeve 312, the two second sleeves 312 can be driven to rise and fall synchronously relative to their respective first sleeves 311, thus forming the synchronous extension and retraction of the dual air ducts. By controlling the extension and retraction of the dual air ducts, the distance between the smoke collection module 20 and the island 100 can be changed. During cooking, the second sleeve 312 can be lowered by controlling the air duct extension and retraction drive component 32 to reduce the distance between the smoke collection module 20 and the island 100, thereby reducing the escape of oil fumes and improving the smoke extraction effect. After cooking, the second sleeve 312 can be raised by controlling the air duct extension and retraction drive component 32 to reduce the space occupied by the island range hood. Therefore, the island range hood provided in this embodiment can achieve the synchronous extension and retraction of two air duct components 31 through a single motor 321, that is, the synchronous extension and retraction of two air ducts can be achieved with a single power source, which is simple in structure and saves costs.

[0102] like Figures 11 to 13 As shown, a drive shaft 322 passes through a motor 321 in a left-right direction. Both ends of the drive shaft 322 are connected to the tops of corresponding push rod components 323. The motor 321 is located between the two push rod components 323, which are concealed within their respective air duct assemblies 31. The motor 321 is also concealed within the auxiliary air box 11, saving space and enhancing the aesthetics of the range hood. Optionally, two reinforcing seats 115 arranged opposite each other in a left-right direction are fixed inside the auxiliary air box 11. A motor mounting beam 116 connects the two reinforcing seats 115, and the motor 321 is fixed to the motor mounting beam 116. By setting the reinforcing seats 115 and the motor mounting beam 116, the connection strength is enhanced, and the stability of the lifting drive is improved.

[0103] Optionally, such as Figure 14As shown, each push rod component 323 includes a first gear 3231, a second gear 3232, a lead screw 3233, and a lifting sleeve 3234. The first gear 3231 is mounted on the transmission shaft 322 and rotates synchronously with the transmission shaft 322. The second gear 3232 is perpendicular to and meshes with the axis of the first gear 3231, that is, the axis of the first gear 3231 extends in the left-right direction, and the axis of the second gear 3232 extends in the up-down direction. The two can be selected to mesh with bevel teeth or helical teeth. The lead screw 3233 passes through the second gear 3232 and rotates synchronously with the second gear 3232, that is, the lead screw 3233 only rotates and does not move. The lifting sleeve 3234 is threaded onto the outside of the lead screw 3233 and is connected to the second sleeve 312. When motor 321 drives transmission shaft 322 to rotate, transmission shaft 322 drives first gear 3231 to rotate around its axis. First gear 3231 drives second gear 3232 to rotate around its axis, and second gear 3232 drives lead screw 3233 to rotate synchronously. Since lifting sleeve 3234 is threaded onto lead screw 3233, the rotation of lead screw 3233 can be converted into vertical movement of lifting sleeve 3234. Lifting sleeve 3234 simultaneously drives second sleeve 312 to move vertically. Therefore, by setting the above-mentioned push rod component 323, synchronous extension and retraction of two air duct components 31 can be achieved using one motor 321 and one transmission shaft 322, resulting in a simple structure and cost savings.

[0104] Optionally, such as Figure 13 As shown, the push rod component 323 also includes a first square tube 3235 and a second square tube 3236 that are slidably fitted. The first square tube 3235 is fixedly installed on the lower side of the motor mounting beam 116. The first gear 3231, the second gear 3232, and the lead screw 3233 are all located inside the first square tube 3235. The end of the lifting sleeve 3234 is fixedly connected to the inner wall of the second square tube 3236. The end of the second square tube 3236 is fixedly connected to the inner wall of the second sleeve 312 through a connector 3237. When the lifting sleeve 3234 moves up and down, it can drive the second square tube 3236 to move up and down, and the second square tube 3236 drives the second sleeve 312 to move up and down. The first square tube 3235 and the second square tube 3236 conceal the first gear 3231, the second gear 3232, the lead screw 3233, and the lifting sleeve 3234, providing protection for each component. Furthermore, the sliding engagement between the first square tube 3235 and the second square tube 3236 drives the second sleeve 312 to rise and fall, resulting in higher structural strength and more stable sliding. In one embodiment, the first square tube 3235 is sleeved on the outside of the second square tube 3236.

[0105] Specifically, the second sleeve 312 is fitted outside the first sleeve 311, and the lifting height of the second sleeve 312 can be selectively adjusted within 350mm. This allows the air duct assembly 31 to have a minimum height of 1.1m and a maximum height of 1.8m, meeting the installation height requirements of ceilings 200 at different heights.

[0106] The first sleeve 311 has fixed slide rails 314 at each of its four corners, and the second sleeve 312 has sliding rails 315 at each of its four corners. The sliding rails 315 slide in conjunction with the fixed slide rails 314. The cooperation between the sliding rails 315 and the fixed slide rails 314 guides the lifting and lowering of the second sleeve 312, ensuring its smooth movement. Both the sliding rails 315 and the fixed slide rails 314 have L-shaped cross-sections. This design results in a large contact area between the sliding rails 315 and the fixed slide rails 314, leading to a more stable sliding guidance effect.

[0107] In one embodiment, one of the sliding rail 315 and the fixed rail 314 is provided with a plurality of balls. The plurality of balls and the sliding rail 315 and the fixed rail 314 roll against each other, and the sliding rail 315 and the fixed rail 314 form sliding friction, which further reduces the friction between the sliding rail 315 and the fixed rail 314.

[0108] The second sleeve 312 includes a sheet metal part 3121 and a glass panel 3122. The sheet metal part 3121 is U-shaped, and the openings of the two sheet metal parts 3121 are arranged opposite to each other. The glass panel 3122 is detachably connected to the opening of the sheet metal part 3121. The opening of the sheet metal part 3121 forms an inspection port, allowing for the removal of the glass panel 3122 for inspection of the internal structural components. The opposite arrangement of the openings of the sheet metal parts 3121 of the two second sleeves 312 ensures that the glass panel 3122 is located on the outer side as a decorative surface, which also facilitates cleaning and improves aesthetics.

[0109] The second sleeve 312 also includes a reinforcing member 3123, which is located at the opening of the sheet metal part 3121 and connected between the inner walls of opposite sides of the sheet metal part 3121. The reinforcing member 3123 increases the structural strength of the second sleeve 312 and prevents the opposite sides of the sheet metal part 3121 from expanding outwards, ensuring overall flatness and thus guaranteeing the stability of the second sleeve 312 during its lifting and lowering process. Specifically, in this embodiment, the second sleeve 312 includes two reinforcing members 3123, which are spaced apart in the vertical direction, further ensuring the structural strength and flatness of the second sleeve 312. For example... Figure 13As shown, the connector 3237 at the bottom of the second square tube 3236 is fixedly connected to the lower reinforcing member 3123. It should be noted that the installation position of the two reinforcing members 3123 should ensure that after the second sleeve 312 rises to the set height, the upper reinforcing member 3123 does not interfere with the lower edge of the first sleeve 311.

[0110] One of the sheet metal part 3121 and the glass panel 3122 is provided with a first hook 3124 with its opening facing upwards, and the other is provided with a second hook 3125 with its opening facing downwards. The first hook 3124 is inserted and hooked onto the second hook 3125, realizing a detachable connection between the glass panel 3122 and the sheet metal part 3121, which is quick to assemble and disassemble and convenient to maintain. In one embodiment, eight second hooks 3125 are glued to the side of the glass panel 3122 facing the sheet metal part 3121, and eight insertion holes are opened on the side of the sheet metal part 3121 facing the glass panel 3122. The lower side of the insertion holes protrudes towards the glass panel 3122 to form the first hook 3124. The eight first hooks 3124 and eight second hooks 3125 correspond one-to-one, simplifying the processing structure.

[0111] A sliding seal 3126 is provided between the bottom end of the first sleeve 311 and the second sleeve 312, and the sliding seal 3126 is arranged circumferentially around the first sleeve 311. In this embodiment, the sliding seal 3126 may be made of felt, which is fixed to the outer wall of the bottom end of the first sleeve 311 to achieve circumferential sealing between the first sleeve 311 and the second sleeve 312, thereby preventing oil fume leakage.

[0112] like Figure 15 As shown, to improve the smoke extraction effect of this island-style range hood, a smoke collection plate 22 is arranged circumferentially around the main body 21 of the smoke collection hood. The smoke collection plate 22 can improve the smoke collection effect without obstructing light above the bar or island cabinet, thus ensuring the smoke extraction performance of the island-style range hood and enhancing the user experience. The smoke collection plate 22 is a rectangular plate with a length of L1 and a width of L2. The length of the main body 21 is M1, and the width of the main body 21 is M2; wherein L1 > M1, and L2 > M2. By setting the length L1 and width L2 of the smoke collection plate 22 to be greater than the length M1 and width M2 of the main body 21, respectively, the smoke collection effect can be improved, compensating for the small smoke inlet channel caused by the lifting drive mechanism 24 in the smoke collection chamber 201, thereby improving the smoke extraction effect of the island-style range hood.

[0113] In some embodiments, the smoke collecting plate 22 is a single-layer plate structure with a thickness of 8mm, which facilitates processing and assembly and reduces costs. In other embodiments, the smoke collecting plate 22 can also be configured as a double-layer plate structure, with each layer of the smoke collecting plate 22 having a thickness of 4mm, achieving the same effect. Of course, this embodiment does not limit the specific thickness of the smoke collecting plate 22, and designers can adapt the thickness of the smoke collecting plate 22 according to actual processing and assembly requirements. For example, when the smoke collecting plate 22 is a single-layer plate structure, its thickness can be 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc.; when the smoke collecting plate 22 is a double-layer plate structure, the thickness of each layer of the smoke collecting plate 22 can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc., and the thicknesses of the two layers of the smoke collecting plate 22 can be equal or unequal.

[0114] like Figures 17 to 19 As shown, to better install the smoke collection plate 22, the smoke collection hood body 21 includes an upper hood body 211 and a lower hood body 212 arranged vertically. The upper hood body 211 is connected to the bottom of the air duct module 30, and the interior of the lower hood body 212 is recessed to form the aforementioned smoke collection cavity 201. The smoke collection plate 22 is annular, and a portion of the lower hood body 212 passes through the annular hole 222 of the smoke collection plate 22 and connects to the upper hood body 211, thereby clamping the smoke collection plate 22 between the upper hood body 211 and the lower hood body 212. This design improves the fixing effect of the smoke collection plate 22 and facilitates the disassembly, assembly, and cleaning of the smoke collection plate 22 by operators.

[0115] like Figure 15 As shown, the upper cover 211 has two first smoke inlets 2111, and the lower cover 212 has two second smoke inlets 2121. The two second smoke inlets 2121 correspond one-to-one with the two first smoke inlets 2111. After the upper cover 211 and the lower cover 212 are closed, the first smoke inlets 2111 are connected to the second smoke inlets 2121 to form one of the connecting ports 202.

[0116] In some embodiments, the upper cover 211 is provided with a first flange 2114 along the periphery of the first smoke inlet 2111, and the first flange 2114 extends downward; the lower cover 212 is provided with a second flange 2122 along the periphery of the second smoke inlet 2121, and the second flange 2122 extends upward. The second flange 2122 passes through the annular hole 222 of the smoke collecting plate 22 and connects with the first flange 2114, thereby realizing the fixed connection between the upper cover 211 and the lower cover 212.

[0117] In some embodiments, there are at least two first flanges 2114, which are spaced apart circumferentially along the first smoke inlet 2111. There are also at least two second flanges 2122, which are spaced apart circumferentially along the second smoke inlet 2121. The first flanges 2114 and second flanges 2122 are connected in a one-to-one correspondence. This design improves the connection between the upper cover 211 and the lower cover 212, thereby enhancing the overall structural stability of the machine.

[0118] In some embodiments, the corresponding first flange 2114 and second flange 2122 are connected by fastening screws. Screw connection has the advantages of simple structure, tight connection and easy disassembly and assembly.

[0119] To improve structural strength, the smoke hood body 21 also includes a lower reinforcing rib assembly. This assembly comprises several lower reinforcing ribs 213 arranged sequentially along the circumference of the lower hood body 212. Each lower reinforcing rib 213 includes a horizontal plate 2131 and a vertical plate 2132 connected perpendicularly. The horizontal plate 2131 is connected to the lower hood body 212, and the inner wall of the annular hole 222 abuts against the vertical plate 2132 to limit the position of the smoke collecting plate 22. The lower reinforcing ribs 213 form an L-shaped structure. When the annular hole 222 of the smoke collecting plate 22 passes through the lower hood body 212, the inner wall of the annular hole 222 abuts against the vertical plate 2132 to limit the installation position of the smoke collecting plate 22, thereby improving the accuracy of limiting the installation position of the smoke collecting plate 22.

[0120] Both the upper cover 211 and the smoke collection plate 22 are rigid components. A first buffer 214 is provided between the upper cover 211 and the smoke collection plate 22, and a second buffer 215 is provided between the lower cover 212 and the smoke collection plate 22 to reduce the risk of damage to the smoke collection plate 22 due to clamping. The first buffer 214 and the second buffer 215 can buffer the assembly between the smoke collection hood body 21 and the smoke collection plate 22, preventing the smoke collection plate 22 from cracking due to excessive clamping between the upper cover 211 and the lower cover 212. They can also prevent the smoke collection plate 22 from cracking due to hard collisions with the upper cover 211 or the lower cover 212 during use, thereby extending the service life of the island-style range hood.

[0121] In some embodiments, both the first buffer 214 and the second buffer 215 are rubber buffer pads, which provide good cushioning, are easy to assemble, and have low cost. In other embodiments, the first buffer 214 and the second buffer 215 can also be made of cushioning foam, achieving the same effect. The upper cover 211 has a mounting flange 2115 on the side facing the lower cover 212. The first buffer 214 is sandwiched between the mounting flange 2115 and the smoke collection plate 22. The mounting flange 2115 increases the contact area between the upper cover 211 and the first buffer 214.

[0122] The smoke hood body 21 also includes an upper reinforcing rib assembly 216, which is disposed on the upper hood body 211 to improve the structural strength of the upper hood body 211. Specifically, in one embodiment, as shown... Figure 20 As shown, the upper reinforcing rib group 216 includes a first upper reinforcing rib 2161 and a second upper reinforcing rib 2162. A plurality of first upper reinforcing ribs 2161 and a plurality of second upper reinforcing ribs 2162 are alternately arranged along the circumference of the upper cover 211 and connected end-to-end in sequence. This design allows the first upper reinforcing ribs 2161 and the second upper reinforcing ribs 2162 to connect sequentially to form a ring structure, which can significantly improve the structural strength of the upper cover 211 and prevent deformation during use. Both the first upper reinforcing ribs 2161 and the second upper reinforcing ribs 2162 are L-shaped structures.

[0123] The island-style range hood also includes a light module 40 circumferentially arranged around the smoke collection plate 22. The light module 40 includes an annular frame 41 and a light assembly 42. The annular frame 41 is connected to the circumferential edge of the smoke collection plate 22 and has a bottom opening. The light assembly 42 is housed within the annular frame 41, and the light emitted by the light assembly 42 can exit from the bottom opening. A transparent light cover 43 is detachably sealed to the bottom opening of the annular frame 41. Figure 21 As shown, the annular frame 41 is connected to the outer peripheral edge of the smoke collection plate 22, and the annular frame 41 has a bottom opening. By setting the annular frame 41 connected to the peripheral edge of the smoke collection plate 22, the lamp assembly 42 can be stably installed, and the light emitted by the lamp assembly 42 can shine out from the bottom opening of the annular frame 41 to directly cover the entire island 100 downwards. By setting the lamp module 40 around the periphery of the smoke collection plate 22, on the one hand, the light emitted by the lamp module 40 can directly cover the entire island 100 downwards, thereby eliminating blind spots; on the other hand, compared with the long-distance illumination of the overhead light, the lamp module 40 set on the smoke collection plate 22 can provide close-range illumination, making the light softer, giving the entire island 100 a more atmospheric feel, and improving the user experience. Moreover, by setting a transparent lamp cover 43, it not only does not block the light emitted by the lamp assembly 42, but also protects the lamp assembly 42, preventing it from being exposed to oily fume environment for a long time, which would cause excessive oil stains to adhere to it and thus damage it. In addition, the transparent lamp cover 43 also makes it convenient for users to clean the oil stains on it.

[0124] like Figure 22 and Figure 23As shown, the annular frame 41 includes strip-shaped borders 411 and rounded corners 412. Multiple strip-shaped borders 411 are arranged circumferentially along the smoke collection plate 22 and sequentially spliced ​​into a ring. Adjacent strip-shaped borders 411 are detachably connected by rounded corners 412. By setting the rounded corners 412, on the one hand, the multiple strip-shaped borders 411 can be detachably connected, which facilitates the disassembly, assembly, and maintenance of the light module 40. On the other hand, it can also make the corners of the annular frame 41 smooth, thereby improving the aesthetics of the entire island-style range hood and reducing the pain caused by accidental collisions with the annular frame 41, further enhancing the user experience.

[0125] In this embodiment, the smoke collection plate 22 is a rectangular plate. Correspondingly, there are four strip-shaped frames 411 and four rounded corner portions 412. The four strip-shaped frames 411 are respectively connected to the four sides of the smoke collection plate 22, and the four rounded corner portions 412 are respectively located at the four corners of the smoke collection plate 22. This design not only improves the lighting effect of the lamp module 40, but also allows the lamp module 40 to completely cover the four edges of the smoke collection plate 22, providing protection for the smoke collection plate 22 and ensuring its safety during use. At the same time, it can extend the service life of the smoke collection hood body 21. Of course, this embodiment does not limit the number of strip-shaped frames 411 and rounded corner portions 412. Designers can adaptively adjust the actual number of strip-shaped frames 411 and rounded corner portions 412 according to the actual shape of the smoke collection plate 22.

[0126] In some embodiments, the lamp assembly 42 includes linear lamp strips corresponding one-to-one with the strip-shaped frame 411, with one lamp strip installed in each strip-shaped frame 411, and the end of one of two adjacent lamp strips extending into the rounded corner 412. This design, on the one hand, reduces the area where no lamp strip is installed at the rounded corner 412, thereby improving the uniformity of light at various positions on the annular frame 41; on the other hand, it also avoids interference when two adjacent lamp strips are installed at the rounded corner 412.

[0127] In some embodiments, each strip-shaped frame 411 has slots at both ends, and the rounded corner portion 412 has two connectors 4121 arranged at an included angle. The two connectors 4121 on each rounded corner portion 412 are respectively inserted into the slots of the two corresponding strip-shaped frames 411. The rounded corner portion 412 and its two corresponding strip-shaped frames 411 are fixed together, resulting in a simple structure that is easy to assemble and disassemble. In this embodiment, the included angle between the two connectors 4121 on each rounded corner portion 412 is 90° to accommodate the splicing angle of two adjacent strip-shaped frames 411, thereby achieving a precise and seamless splicing of the strip-shaped frames 411 and the rounded corner portion 412.

[0128] like Figure 23As shown, the radius R of the rounded corner 412 is smaller than the width B of the strip frame 411. This arrangement avoids situations where the end of the light strip cannot be inserted into the rounded corner 412 due to an excessively large radius R, thus affecting the assembly effect between the light assembly 42 and the annular frame 41, as well as the overall lighting effect of the light module 40. Furthermore, minimizing the size of the rounded corner 412 ensures the continuity of the multiple strip frames 411 during splicing, further guaranteeing a good assembly effect between the light assembly 42 and the annular frame 41. This embodiment does not limit the specific value of the radius R of the rounded corner 412; designers can adaptively adjust the radius R of the rounded corner 412 according to the assembly requirements between the light module 40 and the smoke hood body 21.

[0129] In some embodiments, the transparent lamp cover 43 is a strip-shaped structure, which corresponds one-to-one with the strip-shaped frame 411, facilitating processing and allowing operators to easily assemble the transparent lamp cover 43 with the annular frame 41. To achieve complete sealing of the bottom opening of the annular frame 41 by the transparent lamp cover 43, both ends of the transparent lamp cover 43 in the length direction are beveled. When four transparent lamp covers 43 are sequentially spliced ​​into a ring, the beveled surfaces of two adjacent transparent lamp covers 43 can fit together, thereby achieving seamless splicing of the transparent lamp covers 43.

[0130] The smoke hood body 21 has a mounting cavity for installing the control panel module 50. The lamp assembly 42 is electrically connected to the control panel module 50 via a connecting wire harness to provide power to the lamp assembly 42. The mounting cavity is formed between the upper cover 211 and the lower cover 212 for installing the control panel module 50. In some embodiments, the lamp module 40 also includes a wiring cover 44, such as... Figure 21 As shown, the wiring cover 44 is located at the bottom of the smoke collection plate 22, and a wiring space for connecting wire harnesses is formed between the two. The wiring cover 44 can cover the connecting wire harnesses, thereby improving the appearance of the lamp module 40; in addition, by arranging the connecting wire harnesses at the bottom of the smoke collection plate 22, it is easier for operators to lay the wiring, reducing manual labor and facilitating daily maintenance. In some embodiments, the two ends of the wiring cover 44 are respectively inserted and fixed in the lower cover 212 and the annular frame 41, thereby achieving complete coverage of the connecting wire harnesses and facilitating the stable installation of the wiring cover 44.

[0131] In some embodiments, the annular hole 222 and the outer periphery of the smoke collection plate 22 are provided with wiring clearance notches 221 to avoid the wiring of the connecting wires, so as to facilitate the wiring of the connecting wires and avoid interference between the thick connecting wires and the smoke collection plate 22 during installation. Figure 21 As shown.

[0132] Since users mostly move around on opposite sides of the island 100 in the width direction, in some embodiments, control panel modules 50 are provided on at least two opposite sides of the smoke hood body 21 so that users can easily touch the control panel modules 50 to operate the island range hood, whether they are moving inside or outside.

[0133] For example, in one embodiment, the smoke collection module 20 is provided with two sets of control panel modules 50, such as... Figure 24 As shown, along the width of the island 100, two sets of control panel modules 50 are respectively arranged on both sides of the fume hood body 21. Thus, each set of control panel modules 50 corresponds to a cooking operation area on either side of the island 100 along the first direction. Users can easily view the working status of the island-style range hood or perform other interactive operations from either side of the cooking operation area, making it convenient to use without needing to move and avoiding interruptions to cooking. Furthermore, when multiple people are cooking around the island 100 simultaneously, the two sets of control panel modules 50 on either side of the fume hood body 21 serve users in their respective cooking operation areas, improving the convenience of observing the working status or performing button operations. Especially when multiple people need to adjust different parameters of the island-style range hood's working status, at least two people can operate both sets of control panel modules 50 simultaneously without waiting, enhancing the user experience of the island-style range hood.

[0134] The control panel module 50 includes an operating glass panel 51 and a control board 52 connected to each other. The main body 21 of the fume hood has a mounting cavity. The upper hood 211 has a side panel 2112 that folds and extends towards the lower hood 212, and a first mounting hole 21121 communicating with the mounting cavity. The operating glass panel 51 fits against the side panel 2112, and the control board 52 is disposed within the mounting cavity. The control board 52 is connected to the operating glass panel 51 via the first mounting hole 21121. The control board 52 is concealed and not exposed. The operating glass panel 51, by fitting against the side panel 2112, seals the first mounting hole 21121, preventing fumes from entering the main body 21 of the fume hood through the first mounting hole 21121. The operating glass panel 51 has a decorative effect and is aesthetically pleasing.

[0135] Specifically, the operating glass panel 51 is provided with a snap-fit ​​buckle 53, and a second mounting hole 21122 is provided on the side panel 2112, into which the snap-fit ​​buckle 53 is snapped. The snap-fit ​​structure facilitates the mounting of the operating glass panel 51 on the side panel 2112, making assembly and disassembly easy without the need for screws or other fasteners, or special tools. Furthermore, placing the second mounting hole 21122 on the side panel 2112 avoids damaging the integrity of the operating glass panel 51, ensuring that its structural strength is not affected. In one embodiment, the snap-fit ​​buckle 53 is adhesively bonded to the inner side of the operating glass panel 51 facing the side panel 2112; this adhesive method does not compromise the integrity of the operating glass panel 51.

[0136] The control panel 52 is connected to the operating glass panel 51 via a control panel bracket 54. The control panel 52 and the control panel bracket 54 are detachably connected by fasteners such as screws, and the control panel bracket 54 is bonded to the back of the operating glass panel 51.

[0137] To enable the raising and lowering of the deflector 23, the smoke collection module 20 also includes a raising and lowering drive mechanism 24, such as... Figure 25 and Figure 26 As shown, the output end of the lifting drive mechanism 24 is connected to the guide plate 23. The lifting drive mechanism 24 is configured to drive the guide plate 23 to switch between a first position where the smoke collection chamber 201 is closed and a second position where the smoke collection chamber 201 is open. When the guide plate 23 is in the first position, it covers the bottom surface of the smoke collection chamber 201 to prevent the smoke collection chamber 201 from being exposed, which is beneficial to improving aesthetics. When the guide plate 23 is in the second position, the smoke collection chamber 201 can be opened to achieve the extraction of oil fumes.

[0138] In some embodiments, the guide plate 23 is also provided with an oil receiving groove 231 corresponding to each connection port 202. The oil receiving groove 231 is recessed in the upper surface of the guide plate 23. The oil receiving groove 231 is used to receive oil droplets filtered from the corresponding connection port 202, so as to prevent them from dripping onto the island 100 and to facilitate cleaning by the user.

[0139] In some embodiments, oil-absorbing cotton is provided at the oil receiving groove 231 to absorb the oil droplets that fall into the oil receiving groove 231, further facilitating the user to clean the main body 21 of the smoke hood.

[0140] The lifting drive mechanism 24 includes a telescopic sleeve assembly 241, which comprises at least two sleeves arranged sequentially from top to bottom and capable of being nested within each other. The uppermost sleeve is connected to the smoke hood body 21, and the lowermost sleeve is connected to the guide plate 23. Any two adjacent sleeves can be in an overlapping state or an alternating deployment state. In the overlapping state, the guide plate 23 rises and is located in a first position; in the alternating deployment state, the guide plate 23 descends and is located in a second position.

[0141] For example, in one embodiment, the telescopic sleeve assembly 241 includes three sleeves, which are arranged from top to bottom as an upper sleeve 2411, a middle sleeve 2412 and a lower sleeve 2413. Of course, in other embodiments, the number of sleeves included in the telescopic sleeve assembly 241 can be adjusted to two, four or more, depending on the lifting height requirement of the guide plate 23.

[0142] To enable the extension and retraction of the three sleeves and the raising and lowering of the guide plate 23, the lifting drive mechanism 24 also includes a crossbar assembly 242, a guide rod assembly 243, a mounting bracket 245, and a lifting drive component 244. The lifting drive component 244 is connected to the smoke hood body 21 via the mounting bracket 245 and is located within the smoke collection chamber 201. Simultaneously, the mounting bracket 245 and the upper sleeve 2411 are connected.

[0143] like Figure 28 As shown, the crossbar assembly 242 includes a first connecting rod 2421 and a second connecting rod 2422 hinged in the middle. The first hinge end 24211 of the first connecting rod 2421 is hinged to the mounting bracket 245, and the first sliding end 24212 of the first connecting rod 2421 is hinged and slidably connected to the guide plate 23. The second hinge end 24222 of the second connecting rod 2422 is hinged to the lower sleeve 2413, and the second sliding end 24221 of the second connecting rod 2422 is hinged and slidably connected to the mounting bracket 245. The first hinge end 24211 and the second hinge end 24222 are spaced apart in the vertical direction, and the first sliding end 24212 and the second sliding end 24221 are also spaced apart in the vertical direction. When the lifting drive component 244 is working, it can drive the second sliding end 24221 to slide relative to the mounting bracket 245, and at the same time drive the first connecting rod 2421 and the second connecting rod 2422 to rotate around the hinge point between them. This increases or decreases the distance between the first hinge end 24211 and the second hinge end 24222, as well as the distance between the first sliding end 24212 and the second sliding end 24221, thereby realizing the switching of the guide plate 23 between the first position and the second position, and simultaneously driving the lower sleeve 2413 to rise and fall. The mounting bracket 245 transfers the weight of the guide plate 23 to the smoke hood body 21, avoiding the telescopic sleeve assembly 241 from directly bearing the load.

[0144] The guide rod assembly 243 includes two first guide rods 2431. The first ends of the two first guide rods 2431 are hinged together and both are hinged to the intermediate sleeve 2412. The second ends of the two first guide rods 2431 are respectively hinged to the first connecting rod 2421 and the second connecting rod 2422, and the first connecting rod 2421, the second connecting rod 2422 and the two first guide rods 2431 form a rhombus. The rotation between the first connecting rod 2421 and the second connecting rod 2422 will drive the guide rod assembly 243 to move. The rotation of the two first guide rods 2431 around the hinge point causes the included angle of the rhombus to be compressed or expanded, and the height position of the hinge point of the two first guide rods 2431 changes, thereby driving the intermediate sleeve 2412 to rise and fall.

[0145] In another embodiment, the guide rod assembly 243 further includes two second guide rods 2432, the first ends of the two second guide rods 2432 are hinged together and slidably connected to the intermediate sleeve 2412, the second ends of the two second guide rods 2432 are respectively hinged to the first connecting rod 2421 and the second connecting rod 2422, and the first connecting rod 2421, the second connecting rod 2422 and the two second guide rods 2432 form a rhombus.

[0146] By setting two first guide rods 2431 and two second guide rods 2432, the synchronous lifting and lowering of the intermediate sleeve 2412 is achieved on the one hand, and the stability of the power transmission of the cross rod assembly 242 can be further guaranteed on the other hand, thereby ensuring the stability of the guide plate 23 during the lifting and lowering process.

[0147] In this embodiment, the baffle plate 23 is driven to rise and fall by the linkage crossbar assembly 242 and the guide rod assembly 243. This not only ensures the stability of power transmission but also simplifies the manufacturing process, improves processing efficiency, and reduces the manufacturing cost of the island-style range hood to a certain extent. Furthermore, when the crossbar assembly 242 retracts, the first connecting rod 2421 and the second connecting rod 2422 at least partially overlap, occupying a small dimension in the height direction. This allows for the use of the internal space of the smoke collection chamber 201 to house the crossbar assembly 242, eliminating the need to increase the height of the smoke collection chamber 201 and the smoke hood body 21, thus reducing the overall thickness of the smoke hood body 21. The telescopic sleeve assembly 241 can shield the internal structures such as the guide rod assembly 243, the crossbar assembly 242, and the mounting bracket 245. This improves the aesthetic appearance of the smoke hood body 21 and prevents the crossbar assembly 242, the guide rod assembly 243, and the lifting drive component 244 from contacting the smoke, making it easier for users to clean the smoke hood body 21. In this embodiment, when the telescopic sleeve assembly 241 is in the retracted state, it can be completely contained in the smoke collection chamber 201 to make full use of the internal space of the smoke collection chamber 201. At the same time, the guide plate 23 is completely attached to the bottom of the smoke collection hood body 21, which helps to improve the aesthetics of the island-style range hood when it is not in operation.

[0148] like Figure 25 and combined Figure 26 As shown, in this embodiment, the upper sleeve 2411, the middle sleeve 2412, and the lower sleeve 2413 are arranged sequentially from top to bottom and can nest with each other. The size of each sleeve decreases sequentially from top to bottom, and their telescopic cooperation is achieved through the cross rod assembly 242 and the guide rod assembly 243. There is no guide connection structure between the upper sleeve 2411 and the middle sleeve 2412, or between the middle sleeve 2412 and the lower sleeve 2413. This not only reduces friction and noise between adjacent sleeves but also simplifies the structure and improves assembly efficiency. It should be noted that the "size of each sleeve" specifically refers to the length and width of each sleeve, that is, the length and width of each sleeve decrease sequentially from top to bottom.

[0149] In some embodiments, each sleeve has a height dimension of 40mm. When the telescopic sleeve assembly 241 is in the extended state, there is an overlap in the height direction between two adjacent sleeves. The distance H between the guide plate 23 and the bottom of the smoke hood body 21 is 80mm (reference). Figure 16 Simulation analysis verified that this spacing creates the optimal smoke intake space between the guide plate 23 and the smoke collection chamber 201, thus ensuring the smoke extraction effect of the island-style range hood. Of course, in other embodiments, designers can also adaptively adjust the dimensions of each sleeve in the height direction according to actual product requirements, as long as the distance H between the guide plate 23 and the bottom of the smoke collection hood body 21 is between 60mm and 100mm when the telescopic sleeve assembly 241 is in the extended state.

[0150] In some embodiments, two sets of crossbar assemblies 242 are provided, and the two sets of crossbar assemblies 242 are spaced apart along a horizontal first direction; the lifting drive mechanism 24 also includes a first drive rod 2461 connected to the output end of the lifting drive member 244, both ends of the first drive rod 2461 are slidably disposed on the mounting bracket 245, and the second sliding ends 24221 of the two sets of crossbar assemblies 242 are respectively hinged to the two ends of the first drive rod 2461. By providing two sets of crossbar assemblies 242, the stability of the guide plate 23 during the lifting process can be improved, while ensuring the uniformity of the force on the guide plate 23; by providing the first drive rod 2461, the synchronous action of the two sets of crossbar assemblies 242 can be achieved using a single lifting drive member 244, ensuring structural stability while reducing the number of lifting drive members 244, simplifying the overall structure, and reducing production costs.

[0151] It should be noted that in this embodiment, the first horizontal direction specifically refers to the left-right direction, and the second horizontal direction specifically refers to the front-back direction, that is, the two sets of cross rod assemblies 242 are arranged along the left-right direction of the smoke hood body 21. Of course, in other embodiments, the first horizontal direction can also be the front-back direction, and the second horizontal direction can also be the left-right direction. In this case, the two sets of cross rod assemblies 242 are arranged along the front-back direction of the smoke hood body 21.

[0152] It should be noted that this embodiment does not limit the specific structure of the lifting drive component 244, which can be a drive device with linear drive function, such as a cylinder, an electric cylinder, or a linear motor. In some embodiments, the lifting drive component 244 is mounted on the mounting bracket 245 via a motor bracket to achieve a stable arrangement of the lifting drive component 244.

[0153] In some embodiments, the lifting drive mechanism 24 further includes a first transmission rod 2462, which is hinged between the two first sliding ends 24212 of the two sets of cross rod assemblies 242. The first transmission rod 2462 further ensures the synchronicity of the movements of the two sets of cross rod assemblies 242 and the stability of the guide plate 23 during lifting.

[0154] In some embodiments, the lifting drive mechanism 24 further includes a U-shaped first bracket 2471, the middle of which is connected to the mounting bracket 245. Each of the two parallel side plates of the first bracket 2471 has a first sliding groove 24711 extending in a second horizontal direction. The two ends of the first drive rod 2461 are slidably engaged with the two first sliding grooves 24711. The second sliding ends 24221 of the two sets of cross rod assemblies 242 are rotatably connected to the two ends of the first drive rod 2461 via pins. The first bracket 2471 enables stable engagement between the two sets of cross rod assemblies 242 and the mounting bracket 245, simplifies the manufacturing process, and improves assembly efficiency. In this embodiment, the first bracket 2471 is connected to the mounting bracket 245 via fasteners, ensuring a secure connection and easy assembly / disassembly. In other embodiments, the first bracket 2471 can also be connected to the mounting bracket 245 by welding, snap-fitting, or plugging; this embodiment does not limit this method.

[0155] In some embodiments, the lifting drive mechanism 24 further includes a second bracket 2472, which is L-shaped. One side of the second bracket 2472 is connected to the mounting bracket 245, and the first hinge end 24211 of the first connecting rod 2421 is rotatably connected to the other side of the second bracket 2472 via a pin. The second bracket 2472 ensures a stable connection between the first connecting rod 2421 and the mounting bracket 245.

[0156] Specifically, there are two second brackets 2472, which are arranged at intervals along the first horizontal direction and correspond to two sets of cross rod assemblies 242 respectively. The interval between the two second brackets 2472 is used to avoid the fixed end of the lifting drive component 244 and the motor bracket, so as to avoid interference between the lifting drive component 244 and the second bracket 2472 during installation.

[0157] In this embodiment, the second bracket 2472 is connected to the mounting bracket 245 by fasteners, ensuring a secure connection and facilitating easy assembly and disassembly. In other embodiments, the second bracket 2472 may also be connected to the mounting bracket 245 by welding, snap-fitting, plugging, or other methods; this embodiment does not limit this method.

[0158] In some embodiments, the lifting drive mechanism 24 further includes a second transmission rod 2463 and a third transmission rod 2464, with the second transmission rod 2463 hinged between the two sets of first guide rods 2431 and the third transmission rod 2464 hinged between the two sets of second guide rods 2432, to further ensure the synchronicity of the movement of the two sets of guide rod assemblies 243.

[0159] In some embodiments, the lifting drive mechanism 24 further includes two third supports 2473, which are spaced apart along a horizontal first direction and both connected within the intermediate sleeve 2412. Each third support 2473 is located between the first hinge end 24211 and the second hinge end 24222 on the corresponding side. The two ends of the second transmission rod 2463 are respectively hinged to the two third supports 2473, and the first guide rods 2431 of the two sets of guide rod assemblies 243 are rotatably connected to the two ends of the second transmission rod 2463 via pins. The arrangement of the third supports 2473 ensures a stable connection between the two first guide rods 2431 of the two sets of guide rod assemblies 243 and the intermediate sleeve 2412.

[0160] In this embodiment, the third bracket 2473 is connected to the intermediate sleeve 2412 by fasteners, ensuring a secure connection and facilitating easy assembly and disassembly. In other embodiments, the third bracket 2473 can also be connected to the intermediate sleeve 2412 by welding, snap-fitting, or plugging, but this embodiment does not limit the connection in this way.

[0161] In some embodiments, the lifting drive mechanism 24 further includes two fourth supports 2474, which are spaced apart along a horizontal first direction and both connected within the intermediate sleeve 2412. Each fourth support 2474 is located between a first sliding end 24212 and a second sliding end 24221 on a corresponding side. A second sliding groove 24741 extending along a horizontal second direction is provided on the fourth support 2474, and both ends of the third transmission rod 2464 are slidably engaged with the second sliding grooves 24741 of the two fourth supports 2474. Two second guide rods 2432 of the two sets of guide rod assemblies 243 are rotatably connected to both ends of the third transmission rod 2464 via pins. The fourth supports 2474 ensure a stable connection between the two sets of second guide rods 2432 and the intermediate sleeve 2412.

[0162] In this embodiment, the fourth bracket 2474 is connected to the intermediate sleeve 2412 by fasteners, ensuring a secure connection and facilitating easy assembly and disassembly. In other embodiments, the fourth bracket 2474 can also be connected to the intermediate sleeve 2412 by welding, snap-fitting, or plugging, and this embodiment does not limit this method.

[0163] like Figure 28 As shown, the lifting drive mechanism 24 also includes a mounting bracket 248, which is connected inside the lower sleeve 2413. One end of the mounting bracket 248 has a guide groove 2481 extending in a second horizontal direction. The first sliding end 24212 of the first connecting rod 2421 is slidably engaged with the guide groove 2481, and the second hinge end 24222 of the second connecting rod 2422 is hinged to the other end of the mounting bracket 248. The mounting bracket 248 enables a stable connection between the first connecting rod 2421, the second connecting rod 2422, the lower sleeve 2413, and the guide plate 23.

[0164] In some embodiments, there are two mounting brackets 248, and the two mounting brackets 248 correspond to two sets of cross rod assemblies 242 respectively; the two ends of the first transmission rod 2462 corresponding to the first sliding end 24212 are slidably engaged with the guide grooves 2481 of the two mounting brackets 248 respectively, and the two first sliding ends 24212 are rotatably connected to the two ends of the corresponding first transmission rod 2462 by pins.

[0165] like Figure 27 As shown, a fixed bracket 25 is provided on the guide plate 23. The fixed bracket 25 extends into the lower sleeve 2413. Fasteners pass through the outside of the lower sleeve 2413 and are screwed onto the fixed bracket 25, thereby realizing a fixed connection between the guide plate 23 and the lower sleeve 2413. The connection is tight and easy to disassemble and assemble.

[0166] In some embodiments, at least two fixed supports 25 are provided, with each fixed support 25 arranged at intervals along the circumference of the guide plate 23 and fixedly connected to the lower sleeve 2413 by fasteners. This further ensures the stability of the connection between the guide plate 23 and the lower sleeve 2413 and the uniformity of the force on the guide plate 23. In this embodiment, two fixed supports 25 are provided, arranged at intervals along the second horizontal direction. This reduces the number of fixed supports 25 while ensuring a stable connection between the guide plate 23 and the lower sleeve 2413, thereby reducing the production cost of the island-style range hood.

[0167] In some embodiments, the mounting bracket 248 is provided with a snap-fit ​​groove 2482, and the fixing bracket 25 of the guide plate 23 is provided with a snap-fit ​​251 corresponding to the snap-fit ​​groove 2482, such as... Figure 27 As shown, the buckle 251 is engaged in the buckle groove 2482 to achieve a fixed connection between the guide plate 23 and the lower sleeve 2413. The structure is simple and easy to assemble. Of course, in other embodiments, the buckle groove 2482 can also be set on the guide plate 23 and the buckle 251 can be set on the mounting bracket 248, which can achieve the same effect.

[0168] In some embodiments, each mounting bracket 248 is provided with at least two snap-fit ​​slots 2482 arranged at intervals along the second horizontal direction, and each snap-fit ​​slot 2482 corresponds to a snap-fit ​​251, so as to further ensure the stability of the connection between the guide plate 23 and the lower sleeve 2413 and the uniformity of the force on the guide plate 23.

[0169] like Figure 29 As shown, the smoke collection module 20 also includes a connecting bracket 26; the mounting bracket 245 is connected to the smoke collection hood body 21 through the connecting bracket 26, thereby realizing the stable installation of the lifting drive mechanism 24.

[0170] Specifically, in some embodiments, the side of the mounting bracket 245 is provided with a first connecting ear 2451, and the connecting bracket 26 includes a bracket body 261 and a second connecting ear 262 connected to the bracket body 261. The first connecting ear 2451 and the second connecting ear 262 are fixedly connected by fasteners, thereby realizing a fixed connection between the mounting bracket 245 and the connecting bracket 26.

[0171] In some embodiments, there are two connecting brackets 26, and each side of the mounting bracket 245 is provided with a first connecting ear 2451, and there are at least two first connecting ears 2451 on each side of the mounting bracket 245. Each first connecting ear 2451 on each side of the mounting bracket 245 is connected to the same connecting bracket 26, so as to further ensure the stable installation of the lifting drive mechanism 24 and ensure that the mounting bracket 245 is evenly stressed at each position.

[0172] In some embodiments, the connecting bracket 26 is connected to the upper reinforcing rib group 216 of the smoke hood body 21. Specifically, the connecting bracket 26 further includes a second connecting plate 263 and a third connecting plate 264. The two second connecting plates 263 are respectively vertically arranged at both ends of the bracket body 261 along the length direction. The third connecting plate 264 is vertically connected to the bracket body 261 and located between the two second connecting plates 263. The two second connecting plates 263 are respectively connected to the upright plates of the upper reinforcing rib group 216 on the corresponding side. The third connecting plate 264 is connected to the upright plate of the upper reinforcing rib group 216 on the corresponding side, thereby realizing the fixed connection between the connecting bracket 26 and the upper reinforcing rib group 216. Optionally, the second connecting plate 263, the third connecting plate 264, and the upper reinforcing rib group 216 are all fixedly connected by fasteners such as screws, which is simple in structure, has a tight connection, and is easy to assemble and disassemble.

[0173] In some embodiments, the connecting bracket 26 is a one-piece molded structure to reduce the number of parts, simplify the assembly process, and make installation simple.

[0174] continue Figure 15 and Figure 18 As shown, the top of the smoke hood body 21 (specifically the upper hood body 211) is also provided with a maintenance opening 2113 that communicates with the smoke collection chamber 201, and a maintenance cover 218 is detachably installed at the maintenance opening 2113, so that the operator can remove the maintenance cover 218 to inspect the lifting drive mechanism 24. Optionally, the maintenance cover 218 is connected to the upper hood body 211 by fasteners, thereby sealing the maintenance opening 2113. The structure is simple and easy to disassemble and assemble.

[0175] In one embodiment, the fume collection structure further includes an air purification module 60, such as... Figure 30 As shown, the smoke hood body 21 has an installation cavity. The smoke hood body 21 has a connecting inlet 2191 and a connecting outlet 2192 that connect to the installation cavity. An air purification module 60 is installed within the installation cavity. The purification inlet 61 of the air purification module 60 is connected to the connecting inlet 2191, and the purification outlet 62 of the air purification module 60 is connected to the connecting outlet 2192. The air purification module 60 is used to circulate and purify indoor air. The air purification module 60 uses a VOC purification module. It detects indoor air pollution through a VOC sensor and activates when the concentration of harmful gaseous organic compounds is high. It draws in polluted indoor air through the purification inlet 61 connected to the connecting inlet 2191, filters and purifies it, and then circulates it back into the room. This not only removes fumes but also purifies odors and harmful gases, improving indoor air quality and reducing the adhesion of indoor pollutants to the fan module 10 above the ceiling 200, thus improving the cleanliness of the fan module 10. The opening area of ​​the purification inlet 61 is larger than the opening area of ​​the purification outlet 62, resulting in higher purification efficiency.

[0176] Optionally, the air purification module 60 is installed on the side of the smoke collection module 20 and vertically below the fan motor 134, which more effectively improves the cleaning of the fan motor 134. The specific structure and working principle of the air purification module 60 can be set with reference to the prior art, and will not be described in detail here.

[0177] In one embodiment, the island-style range hood also includes a gesture control module 70, allowing users to easily turn the entire appliance on and off by waving their hands, making operation more convenient. Figure 27 As shown, the fixed bracket 25 has a mounting groove 252 with an opening facing the guide plate 23. The gesture control module 70 is embedded in the mounting groove 252. The guide plate 23 has a through port 232 corresponding to the position of the gesture control module 70 (see reference). Figure 31 To cover a larger area, the through-hole 232 is located at the center of the guide plate 23. The gesture control module 70 can be glued to the sheet metal mounting bracket 25. To prevent incorrect installation orientation of the gesture control module 70, the mounting bracket 25 has an anti-error notch. The gesture control module 70 has a protruding structure corresponding to the anti-error notch, which is inserted into the anti-error notch to ensure that the installation orientation of the gesture control module 70 relative to the through-hole 232 is uniquely correct. The specific structure and control principle of the gesture control module 70 can be set with reference to existing technology, and this embodiment is not limited thereto.

[0178] In one embodiment, the second sleeve 312 and the smoke hood body 21 are detachably connected, and the first sleeve 311 and the auxiliary air box 11 of the fan module 10 are detachably connected. Thus, during the transportation of the island-style range hood, the connection between the second sleeve 312 and the smoke hood body 21, and the connection between the first sleeve 311 and the auxiliary air box 11, can be disassembled to form three large modules: the first large module is the fan module 10, the second large module consists of two air duct assemblies 31, and the third large module includes a smoke collection module 20, a light module 40, a control panel module 50, an air purification module 60, and a gesture control module 70 pre-assembled together. These three large modules are approximately equal in length, facilitating packaging and transportation.

[0179] Specifically, the lower end of the second sleeve 312 is inserted into the connecting port 202. The lower edge of the second sleeve 312 is connected to the first flange 2114 of the upper cover 211 and the second flange 2122 of the lower cover 212 by fastening screws. Screw connection has the advantages of simple structure, tight connection and easy disassembly and assembly. The upper end of the first sleeve 311 has a sleeve bending flange 3111, which abuts against the bottom surface of the auxiliary air box 11. The bottom of the auxiliary air box 11 has two auxiliary air box inlets, each of which is connected to a corresponding air duct assembly 31. The sleeve bending flange 3111 surrounds the auxiliary air box inlet. The sleeve bending flange 3111 and the auxiliary air box 11 are connected by fastening screws. Screw connection has the advantages of simple structure, tight connection and easy disassembly and assembly.

[0180] 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. An island-style range hood, characterized in that, It includes a fan module (10), a smoke collection module (20), and a duct module (30) connecting the fan module (10) and the smoke collection module (20). The duct module (30) includes two sets of duct components (31) spaced apart. The duct components (31) can extend, retract, and rise and fall in the vertical direction. The smoke collection module (20) is located below the air duct module (30). The smoke collection module (20) has a smoke collection chamber (201) and the smoke collection chamber (201) has two connecting ports (202). Each connecting port (202) is connected to one of the air duct components (31). When the air duct assembly (31) is raised or lowered, the smoke collection module (20) is raised or lowered simultaneously.

2. The island-style range hood according to claim 1, characterized in that, The smoke collection module (20) includes a smoke collection hood body (21), a smoke collection plate (22), and a guide plate (23). The smoke collection plate (22) extends circumferentially along the smoke collection hood body (21). The vertical projection of the smoke collection plate (22) is larger than that of the smoke collection hood body (21). The guide plate (23) is located below the smoke collection plate (22) at least in the working state and is positioned directly opposite the communication port (202).

3. The island-style range hood according to claim 2, characterized in that, The guide plate (23) is vertically connected to the lower part of the smoke hood body (21) and has a first position for closing the smoke collection chamber (201) and a second position for opening the smoke collection chamber (201). The lifting stroke of the guide plate (23) is less than the lifting stroke of the air duct assembly (31).

4. The island-style range hood according to claim 3, characterized in that, When the guide plate (23) is in the first position, it is flush with or not lower than the smoke collecting plate (22). When the guide plate (23) is in the second position, the distance between the guide plate (23) and the smoke collecting plate (22) is greater than the height of the smoke hood body (21).

5. The island-style range hood according to claim 1, characterized in that, The fan module (10) includes an auxiliary air box (11) arranged in a horizontal direction, a fan housing (12), and a fan (13) disposed in the fan housing (12). The two ends of the auxiliary air box (11) are respectively connected to the air duct module (30) and the fan housing (12). The bottom of the auxiliary air box (11) has two auxiliary connection ports (111), and the two auxiliary connection ports (111) are respectively connected to one of the air duct components (31).

6. The island-style range hood according to claim 5, characterized in that, The fan module (10) further includes a connecting pipe (14) that connects the auxiliary air box (11) and the fan casing (12). The connecting pipe (14) is a retractable pipe; and / or, The smoke collection chamber (201) is provided with a first filter assembly (15); and / or, The auxiliary air box (11) is provided with a second filter component (16) at the air outlet (112).

7. The island-style range hood according to claim 6, characterized in that, The fan (13) is horizontally arranged inside the fan housing (12) and close to the top plate (121) of the fan housing (12). The connecting pipe (14) connects the auxiliary air box (11) and the fan housing (12). The two axial end faces of the fan (13) are arranged in the vertical direction and each is provided with an air inlet (131). An air outlet (132) is provided on the periphery of the fan (13). Among the two axial end faces of the fan (13), the upper end face (132) of the fan (13) is gradually inclined upward from the air inlet (131) to the air outlet (132).

8. The island-style range hood according to claim 1, characterized in that, The air duct assembly (31) includes a first sleeve (311) and a second sleeve (312) that are slidably fitted. The first sleeve (311) is connected to the fan module (10), and the second sleeve (312) is connected to the smoke collection module (20). The air duct module (30) further includes an air duct telescopic drive assembly (32), which includes a motor (321), a drive shaft (322), and two push rod components (323) corresponding to the air duct assembly (31). The drive shaft (322) is connected to the output end of the motor (321), and the two push rod components (323) are simultaneously connected to the drive shaft (322). The output end of the push rod component (323) is connected to the second sleeve (312). The motor (321) can drive the two push rod components (323) to telescopically extend and retract through the drive shaft (322) so that the second sleeve (312) rises and falls relative to the first sleeve (311).

9. The island-style range hood according to claim 8, characterized in that, The second sleeve (312) is sleeved outside the first sleeve (311). The second sleeve (312) includes a sheet metal part (3121) and a glass panel (3122). The sheet metal part (3121) is U-shaped, and the openings of the two sheet metal parts (3121) are arranged opposite to each other. The glass panel (3122) can be detachably connected to the opening of the sheet metal part (3121).

10. The island-style range hood according to claim 9, characterized in that, The second sleeve (312) further includes a reinforcing member (3123) located at the opening of the sheet metal part (3121) and connected between the inner walls of opposite sides of the sheet metal part (3121); and / or, One of the sheet metal part (3121) and the glass panel (3122) is provided with a first hook (3124) with its opening facing upwards, and the other is provided with a second hook (3125) with its opening facing downwards. The first hook (3124) is inserted and hooked onto the second hook (3125); and / or, A sliding seal (3126) is provided between the bottom end of the first sleeve (311) and the second sleeve (312), and the sliding seal (3126) is arranged around the circumference of the first sleeve (311).

11. The island-style range hood according to claim 2, characterized in that, The main body (21) of the smoke hood includes an upper hood (211) and a lower hood (212) arranged vertically. The upper hood (211) is connected to the bottom of the air duct module (30). The smoke collection plate (22) is annular. A portion of the lower hood (212) passes through the annular hole (222) of the smoke collection plate (22) and is connected to the upper hood (211) to sandwich the smoke collection plate (22) between the upper hood (211) and the lower hood (212).

12. The island-style range hood according to claim 11, characterized in that, The smoke collection hood body (21) further includes a lower reinforcing rib assembly, which includes a plurality of lower reinforcing ribs (213) arranged sequentially along the circumference of the lower hood body (212). Each lower reinforcing rib (213) includes a horizontal plate (2131) and a vertical plate (2132) connected perpendicularly. The horizontal plate (2131) is connected to the lower hood body (212), and the inner wall of the annular hole (222) abuts against the vertical plate (2132) to limit the smoke collection plate (22); and / or, A first buffer (214) is provided between the upper cover (211) and the smoke collecting plate (22); and / or, A second buffer (215) is provided between the lower cover (212) and the smoke collection plate (22); and / or, The main body (21) of the smoke collection hood also includes an upper reinforcing rib group (216), which includes a first upper reinforcing rib (2161) and a second upper reinforcing rib (2162). A plurality of the first upper reinforcing ribs (2161) and a plurality of the second upper reinforcing ribs (2162) are arranged alternately along the circumference of the upper hood body (211) and connected end to end in sequence.

13. The island-style range hood according to claim 2, characterized in that, The island-style range hood also includes a lamp module (40) arranged circumferentially around the smoke collection plate (22). The lamp module (40) includes an annular frame (41) and a lamp assembly (42). The annular frame (41) is connected to the circumferential edge of the smoke collection plate (22) and has a bottom opening. The lamp assembly (42) is housed in the annular frame (41) and the light emitted by the lamp assembly (42) can be emitted from the bottom opening. A transparent lamp cover is detachably sealed to the bottom opening of the annular frame (41).

14. The island-style range hood according to claim 2, characterized in that, The smoke collection module (20) further includes a lifting drive mechanism (24), the output end of which is connected to the guide plate (23). The lifting drive mechanism (24) is configured to drive the guide plate (23) to switch between a first position where the smoke collection chamber (201) is closed and a second position where the smoke collection chamber (201) is open.

15. The island-style range hood according to claim 14, characterized in that, The lifting drive mechanism (24) includes a telescopic sleeve assembly (241), which includes at least two sleeves arranged from top to bottom and capable of being inserted sequentially. The uppermost sleeve is connected to the smoke hood body (21), and the lowermost sleeve is connected to the guide plate (23). Any two adjacent sleeves have an overlapping state and an interleaved unfolding state.

16. The island-style range hood according to claim 15, characterized in that, The telescopic sleeve assembly (241) includes three sleeves, which are arranged from top to bottom as an upper sleeve (2411), a middle sleeve (2412) and a lower sleeve (2413). The lifting drive mechanism (24) also includes a crossbar assembly (242) and a guide rod assembly (243). The crossbar assembly (242) includes a first connecting rod (2421) and a second connecting rod (2422) hinged in the middle. The first hinge end (24211) of the first connecting rod (2421) is hinged to the upper sleeve (2411). The first sliding end (24212) of the first connecting rod (2421) is hinged and slidably connected to the guide plate (23). The second hinge end (24222) of the second connecting rod (2422) is hinged to the lower sleeve (2413). The second sliding end (24221) of the second connecting rod (2422) is hinged and slidably connected to the upper sleeve (2411). The first hinge end (24211) and the second hinge end (24222) are spaced apart in the vertical direction. The first sliding end (24212) and the second sliding end (24221) are spaced apart in the vertical direction. The guide rod assembly (243) includes two first guide rods (2431), the first ends of the two first guide rods (2431) are hinged to each other and both are hinged to the intermediate sleeve (2412), the second ends of the two first guide rods (2431) are respectively hinged to the first connecting rod (2421) and the second connecting rod (2422), and the first connecting rod (2421), the second connecting rod (2422) and the two first guide rods (2431) form a rhombus.

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