Range hood

Abstract

The utility model relates to the technical field of household appliances, and discloses a range hood which comprises a range hood module and a fan module, the fan module comprises a shell and an impeller, and the shell is provided with an air outlet; the lifting mechanism is used for controlling the fan module to lift. Through the arranged lifting mechanism, the fan module can be driven to move up and down according to the height information of the user, adjustment of the height of the air outlet is achieved, the height of the air outlet is matched with the height of the user, and the use experience of the users with different heights is greatly improved. In addition, the lifting mechanism is integrally connected with the fan module to adjust the height of the air outlet, compared with the mode that the height of the air outlet is adjusted only by driving the air outlet assembly, the air outlet amount is continuous and stable and does not fluctuate, and the problem that in the prior art, in the up-and-down moving process of the air outlet assembly, the height of the air outlet is influenced can be effectively solved. And a pipeline connected between the air outlet assembly and the fan module is easy to bend to influence the stability of the air outlet quantity.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a range hood. Background Art

[0002] With the improvement of living standards, fan hoods with cooling functions are becoming increasingly popular among consumers. Fan hoods mainly consist of two parts: a hood module and a fan module. The hood module primarily functions to absorb and exhaust cooking fumes, while the fan module primarily cools the cook's head and upper limbs by blowing high-speed air toward them. However, the air outlet height of existing fan hoods is mostly fixed. This makes the cooling effect ineffective when cooks of different heights vary, affecting the user's cooking experience. Utility Model Content

[0003] In view of this, the utility model provides a range hood to solve the problem in the prior art that the air outlet of the fan hood is fixed in height, cannot be adapted to cooks of different heights, has poor cooling effect, and affects the user's cooking experience.

[0004] The utility model provides a range hood, comprising:

[0005] Range hood module;

[0006] The fan module is movably arranged on the range hood module and is used to blow air to cool the user. The fan module includes a housing and an impeller arranged in the housing. The housing has an air outlet.

[0007] A lifting mechanism connected to the fan module, used to control the lifting of the fan module to adjust the height of the air outlet;

[0008] The detection mechanism is used to detect user information and feed it back to the controller of the range hood. The user information at least includes the user's height information. The controller is used to control the lifting mechanism according to the height information fed back by the detection mechanism.

[0009] Beneficial effect: Through the provided lifting mechanism, the fan module can be driven to move up and down according to the user's height information to adjust the height of the air outlet, so that the height of the air outlet matches the user's height, greatly improving the user experience of users of different heights, and effectively solving the problem in the prior art that the air outlet of the fan range hood is fixed in height, cannot be adapted to cooks of different heights, has a poor cooling effect, and affects the user's cooking experience. In addition, the present application adjusts the height of the air outlet by integrally connecting the lifting mechanism with the fan module. Compared with the method of adjusting the height of the air outlet by only driving the air outlet component, the air outlet volume is continuous and stable and will not fluctuate. This can effectively solve the problem in the prior art that when the air outlet component moves up and down, the pipe connecting the air outlet component and the air outlet end of the fan module is easily bent, affecting the air outlet volume, causing the air outlet volume to fluctuate.

[0010] In an optional embodiment, the lifting mechanism includes:

[0011] Lifting motor;

[0012] The transmission component includes a gear and a rack that mesh with each other, the gear is connected to the output shaft of the lifting motor, and the rack is fixedly connected to the fan module;

[0013] The lifting motor drives the gear to rotate and move the rack up and down, thereby driving the fan module to move up and down.

[0014] Beneficial effect: The gear is driven to rotate by the lifting motor, driving the rack to move up and down. Since the rack is fixedly connected to the fan module, the up and down movement of the rack can drive the fan module to move up and down, thereby realizing the up and down adjustment of the air outlet height. The lifting mechanism of this application adopts gear racks as transmission components, which not only has high transmission accuracy, but also runs smoothly, has low noise and a long service life.

[0015] In an optional embodiment, the rack includes a transmission section and a connecting section arranged at a set angle;

[0016] The transmission section is vertically arranged and is provided with teeth meshing with the gear;

[0017] The connecting section bends and extends toward the fan module side and is connected to the fan module via screws.

[0018] Beneficial effect: The rack adopts a transmission section and a connection section set at a set angle, which not only facilitates the meshing transmission between the rack and the gear, but also makes it easier to connect and fix the rack to the fan module. The rack and the fan module are connected by screws, which is firm, stable, and easy to disassemble and assemble.

[0019] In an optional embodiment, the lifting mechanism further includes:

[0020] The fixing base is installed on the range hood module, the lifting motor is installed on the fixing base, and the rack is slidably arranged on the fixing base in the vertical direction;

[0021] The limiting structure is rotatably arranged on the fixed seat and is used to limit the rack. A limiting space for accommodating the rack is formed between the limiting structure and the fixed seat or within the limiting structure itself.

[0022] Beneficial Effects: Through the provision of a fixed base, the lifting mechanism's lifting motor, rack, and other components can be installed on the fixed base, and then assembled with the range hood module through the fixed base, avoiding the inconvenience of installing each component and the range hood module separately, reducing assembly steps, and improving assembly efficiency. Through the provision of a limiting structure, a limiting space for accommodating the rack is formed between the limiting structure and the fixed base, or within the limiting structure itself, thereby limiting and guiding the rack, improving the smoothness of the rack's movement, and effectively preventing the rack from opening away from the fixed base, causing the rack and gear to not accurately mate and mesh, thereby affecting the transmission effect.

[0023] In an optional embodiment, a rotating shaft is fixedly provided on the fixing seat, and the rotating shaft is located on the side of the rack and has a set distance between the rotating shaft and the rack;

[0024] The limiting structure includes two spacers arranged at an interval. The two spacers are rotatably connected to the rotating shaft, and the interval space between the two spacers constitutes a limiting space for accommodating the rack.

[0025] Advantageous Effects: The limiting structure utilizes two spacers spaced apart on the rotating shaft. The space between the two spacers serves as the limiting space for accommodating the limiting rack, resulting in a simple structure and excellent limiting effect. Furthermore, by limiting the rack within the space between the two spacers, the smoothness of the rack's movement can be greatly improved.

[0026] In an optional embodiment, there are two sets of lifting mechanisms, and the two sets of lifting mechanisms are connected to both ends of the fan module.

[0027] Beneficial effect: By setting up two sets of lifting mechanisms, the two sets of lifting mechanisms are connected to the two ends of the fan module, which can drive the fan module to move up and down from both sides, further improving the balance stability of the fan module during the lifting process.

[0028] In an optional embodiment, the fan module includes:

[0029] An air sweeping plate is rotatably arranged at the air outlet;

[0030] The angle adjustment mechanism is connected to the wind sweeping plate and is used to control the rotation angle of the wind sweeping plate.

[0031] Beneficial effect: By rotatably setting the air sweeping plate at the air outlet, when the distance between the cook and the range hood is different, the rotation angle of the air sweeping plate can be adjusted through the angle adjustment mechanism, thereby adjusting the wind direction and improving the cooling experience of the cook.

[0032] In an optional embodiment, the detection mechanism includes:

[0033] The height sensor is connected to the controller and is used to detect the user's height information and feed it back to the controller of the range hood.

[0034] In an optional embodiment, the user information includes distance information between the user and the range hood, and the detection mechanism further includes:

[0035] The distance sensor is connected to the controller and is used to detect the distance information between the user and the range hood and feed it back to the controller of the range hood.

[0036] In an optional embodiment, the fan module further includes:

[0037] The opening and closing panel is movable at the air outlet;

[0038] The push rod mechanism is connected to the opening and closing panel and is used to control the opening and closing panel to move between a first position for opening the air outlet and a second position for closing the air outlet.

[0039] Beneficial effect: The fan module is designed with the above-mentioned opening and closing panel and push rod mechanism. When the user does not need the cooling function, the push rod mechanism controls the opening and closing panel to move to the second position, closing the air outlet. The user cannot see the air outlet and other structures from the outside, which improves the aesthetics and prevents dust from accumulating at the air outlet. When the user needs to turn on the cooling function of the range hood, the push rod mechanism controls the opening and closing panel to open the air outlet, and can also adjust the opening area of ​​the air outlet to achieve the purpose of adjusting the air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 This is a schematic structural diagram of a range hood in an embodiment of the present utility model;

[0042] Figure 2 This is a schematic structural diagram of the fan module and the lifting mechanism in an embodiment of the present utility model;

[0043] Figure 3 for Figure 2 Structural diagram from the back perspective

[0044] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0045] Figure 5 for Figure 2 Schematic diagram of the structure without the opening and closing panel and the front panel of the shell

[0046] Figure 6 for Figure 2 sectional view of

[0047] Figure 7 This is a structural diagram of the lifting mechanism without the cover in the embodiment of the utility model;

[0048] Figure 8 for Figure 7 Front view of

[0049] Figure 9 for Figure 7 Schematic diagram of the structure after the cover is assembled;

[0050] Figure 10 for Figure 9 Schematic diagram of the back structure;

[0051] Figure 11 Schematic diagram of the flow of the control method of the range hood in the embodiment of the present utility model.

[0052] Description of reference numerals:

[0053] 10. Range hood module; 11. Operation panel;

[0054] 20. Fan module; 21. Housing; 210. Air outlet; 22. Impeller; 23. Air sweep plate; 24. Angle adjustment mechanism; 25. Opening and closing panel; 26. Push rod mechanism;

[0055] 30. Lifting mechanism; 31. Lifting motor; 32. Gear; 33. Rack; 331. Transmission section; 332. Connecting section; 34. Fixed seat; 341. Seat body; 342. Cover body; 35. Limiting structure; 350. Limiting space. DETAILED DESCRIPTION

[0056] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0057] With improved living standards, fan hoods with cooling functions are becoming increasingly popular among consumers. These hoods primarily consist of a hood module and a fan module. The hood module primarily extracts and exhausts cooking fumes, while the fan module cools the cook's head and upper limbs by blowing high-speed air toward them. During operation, the fan module's internal crossflow impeller rotates at high speed, converting filtered kitchen air into a high-speed airflow that blows toward the cook's head and upper limbs.

[0058] In the prior art, the air outlet positions of fan range hoods are mostly fixed. Although the wind direction of the air flow can be adjusted by rotating the air sweep plate, when the heights of the cooks are different, the effect of adjusting the wind direction of the air flow by only adjusting the rotation angle of the air sweep plate on the cooling experience of the cooks is limited. The actual effect will be lower than expected, affecting the user's cooking experience.

[0059] The relevant range hoods with cooling function are equipped with an air outlet component that can move up and down. The air outlet component is driven up and down by a driving mechanism to adjust the height of the air outlet. However, since the air outlet component and the air outlet end of the fan module are softly connected through a pipeline, the pipeline is prone to bending during the up and down movement of the air outlet component, thereby affecting the air output, causing the air output to fluctuate, resulting in a poor user experience. Moreover, the air outlet component is also very likely to drive the air outlet pipeline to move during movement, causing the air outlet pipeline to interfere with other components and cause scratches and damage.

[0060] In order to solve the above problems, this embodiment is proposed.

[0061] The following combination Figures 1 to 11 , describing the embodiments of the present utility model.

[0062] According to an embodiment of the present invention, on the one hand, the present invention provides a range hood, including a range hood module 10, a fan module 20, a lifting mechanism 30, and a detection mechanism. The fan module 20 is movably arranged on the range hood module 10, and is used to blow air to cool down the user. The fan module 20 includes a shell 21 and an impeller 22 arranged in the shell 21, and the shell 21 has an air outlet 210; the lifting mechanism 30 is connected to the fan module 20, and is used to control the lifting and lowering of the fan module 20 to adjust the height of the air outlet 210; the detection mechanism is used to detect user information and feed it back to the controller of the range hood. The user information includes at least the user's height information. The controller is used to control the operation of the lifting mechanism 30 according to the height information fed back by the detection mechanism.

[0063] In the above embodiment, the lifting mechanism 30 is provided to drive the fan module 20 to move up and down according to the user's height information, thereby adjusting the height of the air outlet 210, so that the height of the air outlet 210 matches the user's height, greatly improving the user experience of users of different heights, and effectively solving the problem in the prior art that the air outlet 210 of the fan range hood is fixed in height, cannot be adapted to cooks of different heights, has a poor cooling effect, and affects the user's cooking experience. In addition, the present application adjusts the height of the air outlet 210 by integrally connecting the lifting mechanism 30 with the fan module 20. Compared with the method of adjusting the height of the air outlet 210 by only driving the air outlet component, the air outlet volume is continuously stable and will not fluctuate. This can effectively solve the problem in the prior art that when the air outlet component moves up and down, the pipe connecting the air outlet component and the air outlet end of the fan module is easily bent, affecting the air outlet volume, causing the air outlet volume to fluctuate.

[0064] Specifically, in this embodiment, the lifting mechanism 30 is fixedly mounted on the range hood module 10. It is connected to the fan module 20 and can drive the fan module 20 up and down, thereby adjusting the height of the air outlet 210. The housing 21 comprises a main body and an air duct portion. The fan is disposed within the air duct portion. The air duct portion has an air inlet and an air outlet 210. The air outlet 210 is located at the front of the range hood. The impeller 22 is used to drive airflow from the air inlet toward the air outlet 210. The lifting mechanism 30 is connected to the housing 21, specifically, to the main body. The detection mechanism is disposed in either the range hood module 10 or the fan module 20. Preferably, in this embodiment, the detection mechanism is disposed in the fan module 20. When the detection mechanism detects that the user's height is higher than the height of the air outlet 210, the lifting mechanism 30 is controlled to drive the fan module 20 upward, raising the height of the air outlet 210 so that the height of the air outlet 210 matches the user's height. Conversely, when the detection mechanism detects that the user's height is lower than the height of the air outlet 210, the lifting mechanism 30 is controlled to drive the fan module 20 downward, lowering the height of the air outlet 210. The controller is installed inside the range hood module 10 and is used for data processing, command transmission, and control system settings.

[0065] In some embodiments, the lifting mechanism 30 includes a lifting motor 31 and a transmission component, the transmission component includes a gear 32 and a rack 33 that are meshed with each other, the gear 32 is connected to the output shaft of the lifting motor 31, and the rack 33 is fixedly connected to the fan module 20; the lifting motor 31 drives the rack 33 to move up and down by driving the gear 32 to rotate, thereby driving the fan module 20 to rise and fall.

[0066] In the above embodiment, the gear 32 is driven to rotate by the lifting motor 31, driving the rack 33 to move up and down. Since the rack 33 is fixedly connected to the fan module 20, the up and down movement of the rack 33 can drive the fan module 20 to move up and down, thereby realizing the up and down adjustment of the height of the air outlet 210. The lifting mechanism 30 of the present application adopts the gear 32 and the rack 33 as the transmission component, which not only has high transmission accuracy, but also runs smoothly, has low noise, and has a long service life.

[0067] Specifically, the lifting motor 31 is directly or indirectly fixedly mounted on the range hood module 10 , the gear 32 is fixedly connected to the output shaft of the lifting motor 31 , and the rack 33 is directly or indirectly slidably connected to the range hood module 10 along the vertical direction.

[0068] It should be noted that, in this embodiment, the lifting mechanism 30 may also adopt a structure such as an electric push rod, a cylinder, a hydraulic cylinder, etc., and the transmission components are not limited to the form of gears and racks, and may also adopt a structure such as a screw nut.

[0069] In some embodiments, the rack 33 includes a transmission section 331 and a connecting section 332 set at a set angle; the transmission section 331 is set vertically, and is provided with teeth that engage with the gear 32; the connecting section 332 is bent and extended toward the side of the fan module 20, and is connected to the fan module 20 by screws.

[0070] In the above embodiment, the rack 33 adopts a transmission section 331 and a connection section 332 set at a set angle, which not only facilitates the meshing transmission between the rack 33 and the gear 32, but also makes it easier to connect and fix the rack 33 to the fan module 20. The rack 33 and the fan module 20 are connected by screws, which is firm, stable, and easy to disassemble and assemble.

[0071] Specifically, the transmission section 331 and the connecting section 332 are arranged in an L shape, the transmission section 331 is arranged vertically, and the connecting section 332 is arranged horizontally. Two connecting plates are arranged on both sides of the end of the connecting section 332, and a first screw hole is provided on the connecting plate. Two second screw holes are provided on the shell 21 of the fan module 20 corresponding to the two first screw holes. The first screw hole and the second screw hole are connected in sequence by two screws to realize the connection and fixation of the rack 33 and the fan module 20.

[0072] Preferably, the transmission section 331 and the connecting section 332 are integrally formed.

[0073] In some embodiments, the lifting mechanism 30 also includes a fixed seat 34, which is installed on the range hood module, the lifting motor 31 is installed on the fixed seat 34, and the rack 33 is slidably arranged on the fixed seat 34 along the vertical direction; the lifting mechanism 30 also includes a limiting structure 35, which is rotatably arranged on the fixed seat 34 and is used to limit the rack 33. A limiting space 350 for accommodating the rack 33 is formed between the limiting structure 35 and the fixed seat 34 or the limiting structure 35 itself.

[0074] In the above embodiment, the lifting mechanism 30, including the lifting motor 31 and the rack 33, can be mounted on the fixing base 34 through the fixing base 34, and then assembled with the range hood module 10 through the fixing base 34, thereby avoiding the inconvenience of separately installing each component with the range hood module 10, reducing assembly steps, and improving assembly efficiency. The limiting structure 35 is provided, and a limiting space 350 for accommodating the rack 33 is formed between the limiting structure 35 and the fixing base 34, or within the limiting structure 35 itself, thereby limiting and guiding the rack 33, improving the smoothness of the rack 33's movement, and effectively preventing the rack 33 from expanding away from the fixing base 34, which would prevent the rack 33 from accurately mating and meshing with the gear 32 and affecting the transmission effect.

[0075] Specifically, in this embodiment, the fixing seat 34 can be installed and fixed on the range hood module by screws and / or clamping, and the lifting motor 31 is fixed to the fixing seat 34 by screws. The fixing seat 34 includes a seat body 341, and the seat body 341 is vertically arranged. The lifting motor 31 is installed on the back side of the seat body 341, and the gear 32 and the rack 33 are located on the front side of the seat body 341. By separating the lifting motor 31 and the transmission components on the front and rear sides of the seat body 341, the spatial layout is more reasonable and the structure is more compact.

[0076] Furthermore, the lifting motor 31 includes a motor body and two connecting parts arranged on both sides of the motor body. The connecting parts are provided with connecting holes, and the connecting parts on both sides of the motor body and the seat body 341 are connected by two screws. Preferably, a rubber ring is provided between the connecting part and the seat body 341. The provided rubber ring can play a role in buffering, shock absorption and reducing wear.

[0077] Preferably, the fixing seat 34 also includes a cover 342. When the lifting mechanism 30 and the seat 341 are assembled, the cover 342 is snapped onto the front side of the seat 341 to cover the gear 32, rack 33 and other components, thereby preventing the gear 32, rack 33 and other components from being exposed to the outside, affecting the aesthetics, and easily interfering with other components.

[0078] In this embodiment, the rotation direction of the limiting structure 35 is parallel to the movement direction of the rack 33. By rotatably attaching the limiting structure 35 to the fixing base 34, the limiting structure 35 can rotate with the rack 33 as the rack 33 moves up and down within the limiting space 350, avoiding hard contact between the rack 33 and the rack 33, which could cause structural damage. The limiting structure 35 can limit the displacement of the rack 33 in a direction perpendicular to its movement, preventing the rack 33 from expanding.

[0079] Preferably, a guide rail is provided on the seat 341, and the guide rail extends in the vertical direction. A sliding groove is provided on the rack 33, and the rack 33 is slidably connected to the seat 341 through the guide rail and the sliding groove, thereby improving the stability and reliability of the movement of the rack 33.

[0080] In some embodiments, as Figure 7 As shown, a rotating shaft is fixedly provided on the fixed seat 34, and the rotating shaft is located on the side of the rack 33 and has a set distance between the rack 33; the limiting structure 35 includes two spacers set at intervals, and the two spacers are rotatably connected to the rotating shaft, and the interval space between the two spacers constitutes a limiting space 350 that can accommodate the rack 33.

[0081] In the above embodiment, the limiting structure 35 is constructed by spacing two washers on the rotating shaft. The space between the two washers forms a limiting space 350 for accommodating the limiting rack 33. This provides a simple structure and a good limiting effect. Furthermore, by limiting the rack 33 within the space between the two washers, the smoothness of the rack 33's movement is greatly improved.

[0082] Preferably, the gasket is a rubber pad, which has a good cushioning and shock-absorbing effect, further improving the smoothness of the movement of the rack 33. More preferably, the gasket is a bearing pad.

[0083] Of course, in other alternative implementations, the limiting structure 35 may also adopt a structure such as a limiting wheel, a limiting plate, etc.

[0084] In some embodiments, combined Figures 2 to 6 As shown, there are two sets of lifting mechanisms 30 , and the two sets of lifting mechanisms 30 are connected to both ends of the fan module 20 .

[0085] In the above embodiment, two sets of lifting mechanisms 30 are provided, and the two sets of lifting mechanisms 30 are connected to both ends of the fan module 20, which can drive the fan module 20 to move up and down from both sides, further improving the balance stability of the fan module 20 during the lifting process.

[0086] Specifically, two sets of lifting mechanisms 30 are connected to both ends of the housing 21 of the fan module 20. Two sets of second screw holes are provided at both ends of the housing 21, corresponding to the two sets of lifting mechanisms 30, with each set having two second screw holes. The two sets of lifting mechanisms 30 are connected to both ends of the housing 21 via two sets of screws.

[0087] In some embodiments, the fan module 20 includes a sweeping plate 23 and an angle adjustment mechanism 24 . The sweeping plate 23 is rotatably disposed at the air outlet 210 . The angle adjustment mechanism 24 is connected to the sweeping plate 23 to control the rotation angle of the sweeping plate 23 .

[0088] In the above embodiment, by rotatably setting the wind sweeping plate 23 at the air outlet 210, when the distance between the cook and the range hood is different, the rotation angle of the wind sweeping plate 23 can be adjusted by the angle adjustment mechanism 24, thereby adjusting the wind direction and improving the cooling experience of the cook.

[0089] In some embodiments, the air sweeping plate 23 is rotatably mounted below the air outlet 210 , and the angle adjustment mechanism 24 includes a rotating motor fixedly mounted on the fan module 20 .

[0090] In the above embodiment, the rotating motor is used to drive the wind sweeping plate 23 to rotate. The rotating motor adjusts the air outlet direction by driving the wind sweeping plate 23 to rotate. The user distance is negatively correlated with the rotation angle of the wind sweeping plate 23, that is, the smaller the distance, the more the wind sweeping plate 23 rotates upward, the smaller the vertical angle of the wind sweeping plate 23, and the air outlet airflow tends to be closer; conversely, the farther the distance, the more the wind sweeping plate 23 rotates downward, the larger the vertical angle of the wind sweeping plate 23, and the air outlet airflow tends to be farther away.

[0091] Optionally, the rotating motor is fixedly mounted within the housing 21 of the fan module 20. The air outlet 210 is in the form of a grille, ensuring uniform and dispersed airflow for a better user experience. The air sweeping plate 23 is normally horizontal and located within the housing 21. The outer edge of the air sweeping plate 23 is pivotally connected to the air outlet 210 of the housing 21. The outer edge of the air sweeping plate 23 is located at the pivoting connection end of the pivoting connection to the housing 21, while the inner edge of the air sweeping plate 23 is a free end. During use, the inner edge of the air sweeping plate 23 pivots upward, directing airflow downward toward the user's head, shoulders, and other areas. When the user is close to the range hood, the greater the angle between the air sweeping plate 23 and the horizontal direction, the closer the airflow is directed. Conversely, when the user is farther from the range hood, the smaller the angle between the air sweeping plate 23 and the horizontal direction, the farther the airflow is directed.

[0092] In some embodiments, the detection mechanism includes a height sensor, which is connected to the controller and installed on the fan module 20. The height sensor is used to detect the user's height information and feed it back to the controller of the range hood.

[0093] In some embodiments, the user information includes the distance information between the user and the range hood. The detection mechanism also includes a distance sensor. The distance sensor is installed on the fan module 20. The distance sensor is connected to the controller. The distance sensor is used to detect the distance information between the user and the range hood and feed it back to the controller of the range hood.

[0094] Preferably, the distance sensor and height sensor are integrated into one unit for easy installation. The distance sensor and height sensor are mounted on the front side of the housing 21. The range hood also includes an operation panel 11 located on the front side, which is located below the opening and closing panel 25. The distance sensor is used to detect the horizontal distance between the cook and the operation panel 11, and the height sensor is used to detect the cook's height.

[0095] More preferably, the distance sensor is an infrared distance sensor, and the height sensor is an infrared human height detector.

[0096] In some embodiments, the fan module 20 also includes an opening and closing panel 25 and a push rod mechanism 26. The opening and closing panel 25 is movably arranged at the air outlet 210. The push rod mechanism 26 is connected to the opening and closing panel 25 and is used to control the opening and closing panel 25 to move between a first position that opens the air outlet 210 and a second position that closes the air outlet 210.

[0097] In the above embodiment, the fan module 20 is designed with the above-mentioned opening and closing panel 25 and the push rod mechanism 26. When the user does not need the cooling function, the push rod mechanism 26 controls the opening and closing panel 25 to move to the second position, closing the air outlet 210. The user cannot see the air outlet 210 and other structures from the outside, which improves the aesthetics and prevents dust from accumulating at the air outlet 210. When the user needs to turn on the cooling function of the range hood, the push rod mechanism 26 controls the opening and closing panel 25 to open the air outlet 210, and can also adjust the opening area of ​​the air outlet 210 to achieve the purpose of adjusting the air volume.

[0098] Specifically, the opening and closing panel 25 can be moved vertically relative to the air outlet 210 to switch between a first position and a second position. The overlap area between the opening and closing panel 25 and the air outlet 210 can be controlled by the push rod mechanism 26 to adjust the air volume. The push rod mechanism 26 can be a combination of a motor and a connecting rod mechanism, or a combination of an electric push rod and a connecting rod mechanism, etc., which is not limited in this embodiment.

[0099] The specific structure, assembly method, working principle, etc. of the range hood of this embodiment are introduced below with reference to the accompanying drawings.

[0100] The range hood provided in this embodiment includes a range hood module 10 and a fan module 20, a lifting mechanism 30, and a detection mechanism. The range hood module 10 includes a range hood main body, a smoke inlet structure, and a smoke outlet structure; the fan module 20 includes an air duct assembly, a push rod mechanism 26, an opening and closing panel 25, etc.; the air duct assembly includes a shell 21, an impeller 22, a wind sweeping plate 23, and an angle adjustment mechanism 24. The angle adjustment mechanism 24 can adjust the wind direction of the outlet air flow through the wind sweeping plate 23. The controller of the range hood module 10 can control the rotation angle of the wind sweeping plate 23 and the lifting height of the fan module 20. The detection mechanism includes a distance sensor that can detect the distance between the cook and the range hood and a height sensor that can detect the height of the cook.

[0101] Furthermore, the lifting mechanism 30 is used to adjust the vertical movement of the fan module 20. The lifting mechanism 30 includes a fixing base 34, a rack 33, a gear 32, a lifting motor 31, a rubber ring, screws, and a limiting structure 35. The fixing base 34 is located behind the range hood module 10. The rack 33, gear 32, and lifting motor 31 are mounted on the fixing base 34. The fixing base 34 includes a base 341 and a cover 342. The base 341 and cover 342 interlock to form a box structure that accommodates the rack 33, gear 32, and other components. The gear 32 is located below the fixing base 34. The gear 32 is driven to rotate by the lifting motor 31. The relative engagement between the gear 32 and the rack 33 drives the rack 33 to move up and down. The fixed end of the rack 33 is fixed to the fan module 20 by screws. The up and down movement of the rack 33 drives the fan module 20 to move up and down, thereby adjusting the height of the air outlet 210 of the fan module 20. The lifting mechanism 30 is located at the rear side of the fan module 20 , and includes two sets of lifting mechanisms 30 symmetrically distributed on both sides of the fan module 20 .

[0102] Furthermore, the controller is installed inside the range hood body and is used for data calculation and processing, command sending, control system setting, etc.; the height sensor and the distance sensor belong to the same detection mechanism and are installed in combination on the outer surface of the shell 21 of the fan module 20, wherein the distance sensor is used to detect the horizontal distance between the cook and the operation panel 11, and the height sensor is used to detect the height of the cook; the rotating motor is used to drive the wind sweeping plate 23 to rotate, and the lifting motor 31 is used to drive the gear 32 to rotate, thereby realizing the up and down movement of the rack 33, driving the fan module 20 to move up and down, and the rotating motor and the lifting motor 31 are both electrically connected to the controller.

[0103] The existing sweeping plate 23 of the range hood can only simply rotate when the airflow is blown out, and cannot intelligently identify the distance between the cook and the range hood, and then intelligently adjust the angle of the sweeping plate 23 to achieve the function of not blowing the air directly on people. However, this embodiment can accurately control the rotation angle of the sweeping plate 23 through the angle adjustment mechanism 24 set up, thereby achieving the design of not blowing the air directly on people.

[0104] The range hood provided in this embodiment can adjust the height of the air outlet 210 through the lifting mechanism 30, and adjust the airflow direction of the air outlet 210 by rotating the air sweeping plate 23, which solves the limitation of improving the cooking experience by only adjusting the rotation angle of the air sweeping plate 23, and adopts the lifting mechanism 30 to control the up and down movement of the entire fan module 20 to adjust the height of the air outlet 210, which can effectively solve the problem in the prior art that when the air outlet component moves up and down, the pipe connected between the air outlet component and the air outlet end of the fan module is easily bent, affecting the air output, causing the air output to fluctuate.

[0105] According to an embodiment of the present invention, on the other hand, a control method for a range hood applicable to any of the above embodiments is provided, the control method comprising the following steps:

[0106] Step S101: controlling the range hood to start a cooling mode;

[0107] Step S102: Obtaining the user's height information;

[0108] Step S103: Control the lifting mechanism 30 to drive the fan module 20 to move up and down according to the user's height information, so that the height of the air outlet 210 matches the user's height.

[0109] In this embodiment, when the range hood starts the cooling mode, the detection mechanism obtains the user's height information and can control the fan module 20 to move up and down according to the user's height information. When it is detected that the user is of low height, the fan module 20 is controlled to descend. When it is detected that the user is of high height, the fan module 20 is controlled to rise, so that the height of the air outlet 210 of the fan module 20 matches the height of the user, avoiding the problem that the air outlet 210 is far away from the user's head, shoulders and other parts, the user cannot feel the coolness, the cooling effect is poor, and the user experience is affected.

[0110] In some embodiments, the control method further comprises the following steps:

[0111] Step S201: Obtaining user distance information;

[0112] Step S202: Control the rotation angle of the air sweeping plate 23 according to the user's distance information so that the air outlet direction of the air outlet 210 matches the user's distance.

[0113] In the above embodiment, when the range hood starts the cooling mode, the detection mechanism can also detect the distance between the user and the range hood, and intelligently adjust the rotation angle of the air sweeping plate 23 according to the distance. When the user is closer to the range hood, the larger the angle between the air sweeping plate 23 and the horizontal direction, the closer the air sweeping plate 23 is to a vertical state, and the air flow is guided closer; conversely, when the user is farther away from the range hood, the smaller the angle between the air sweeping plate 23 and the horizontal direction, the closer the air sweeping plate 23 is to a horizontal state, and the air flow is guided closer to a distance. By intelligently adjusting the rotation angle of the air sweeping plate 23 according to the distance between the user and the range hood, the effect of air supply from far and near is achieved, thereby improving the user experience.

[0114] In some embodiments, the rotation angle of the air sweeping plate 23 is controlled according to the user's distance information so that the air outlet direction of the air outlet 210 matches the user's distance, which specifically includes the following steps:

[0115] Step S301: Retrieve the correspondence between the user distance information and the rotation angle of the wind sweeping plate 23;

[0116] Step S302: Based on the user's current distance information and the corresponding relationship, obtain the target rotation angle of the wind sweeping plate 23;

[0117] Step S303: Control the angle adjustment mechanism 24 to operate and adjust the wind sweeping plate 23 to the target rotation angle.

[0118] In the above embodiment, the range hood stores the correspondence between the user distance information and the rotation angle of the air sweeping plate 23. During actual use, the controller of the range hood can directly obtain the rotation angle of the air sweeping plate 23 based on the distance information detected by the distance sensor and the correspondence, and then control the angle adjustment mechanism 24 to adjust the air sweeping plate 23 to the angle. The entire adjustment process is relatively convenient and efficient.

[0119] Combine Figure 11 As shown, the control method of the range hood in this embodiment mainly includes the following steps: (1) When the range hood is started and the cooling mode is turned on, the distance sensor and the height sensor send the distance signal A and the height signal B of the cooking person to the controller; (2) the controller collects the distance signal A and the height signal B at periodic intervals; (3) the controller controls the operation of the rotating motor according to the corresponding relationship between the distance signal A and the rotation angle Δ of the air sweeping plate 23, and controls the operation of the lifting motor 31 according to the corresponding relationship between the height signal B and the height H of the air outlet 210 of the fan module 20. The distance signal A is negatively correlated with the rotation angle Δ of the air sweeping plate 23, that is, the smaller the distance, the larger the angle between the horizontal plane of the air sweeping plate 23, the closer the air sweeping plate 23 is to a vertical state, and the air flow tends to be closer. The height signal B is positively correlated with the height H of the air outlet 210 of the fan module 20, that is, the larger the height, the higher the height of the air outlet 210, and the air flow tends to be higher.

[0120] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope of protection of the embodiments of the present application.

Claims

1. A range hood, characterized in that: include: Range hood module (10); A fan module (20) is movably arranged on the range hood module (10) and is used to blow air to cool down the user. The fan module (20) includes a housing (21) and an impeller (22) arranged in the housing (21). The housing (21) has an air outlet (210). a lifting mechanism (30), connected to the fan module (20), and used to control the lifting of the fan module (20) to adjust the height of the air outlet (210); The detection mechanism is used to detect user information and feed it back to the controller of the range hood, wherein the user information at least includes the user's height information, and the controller is used to control the operation of the lifting mechanism (30) according to the height information fed back by the detection mechanism.

2. The range hood according to claim 1, characterized in that: The lifting mechanism (30) comprises: Lifting motor (31); A transmission component, comprising a gear (32) and a rack (33) meshing with each other, wherein the gear (32) is connected to the output shaft of the lifting motor (31), and the rack (33) is fixedly connected to the fan module (20); The lifting motor (31) drives the gear (32) to rotate, thereby driving the rack (33) to move up and down, thereby driving the fan module (20) to move up and down.

3. The range hood according to claim 2, characterized in that: The rack (33) includes a transmission section (331) and a connection section (332) arranged at a set angle; The transmission section (331) is vertically arranged, and the transmission section (331) is provided with teeth meshing with the gear (32); The connecting section (332) bends and extends toward the side of the fan module (20), and is connected to the fan module (20) via screws.

4. The range hood according to claim 2, characterized in that: The lifting mechanism (30) further comprises: A fixing seat (34) is mounted on the range hood module (10), the lifting motor (31) is mounted on the fixing seat (34), and the rack (33) is slidably disposed on the fixing seat (34) along a vertical direction; A limiting structure (35) is rotatably arranged on the fixing seat (34), and a limiting space (350) for accommodating the rack (33) is formed between the limiting structure (35) and the fixing seat (34) or on the limiting structure (35) itself.

5. The range hood according to claim 4, characterized in that: A rotating shaft is fixedly provided on the fixing seat (34), and the rotating shaft is located on the side of the rack (33) and has a set distance between the rotating shaft and the rack (33); The limiting structure (35) includes two spaced-apart gaskets, the two gaskets being rotatably connected to the rotating shaft, and the space between the two gaskets forming a limiting space (350) capable of accommodating the rack (33).

6. The range hood according to any one of claims 1 to 5, characterized in that: The lifting mechanism (30) has two groups, and the two groups of lifting mechanisms (30) are connected to both ends of the fan module (20).

7. The range hood according to any one of claims 1 to 5, characterized in that: The fan module (20) comprises: an air sweeping plate (23), the air sweeping plate (23) being rotatably disposed at the air outlet (210); An angle adjustment mechanism (24) is connected to the wind sweeping plate (23) and is used to control the rotation angle of the wind sweeping plate (23).

8. The range hood according to any one of claims 1 to 5, characterized in that: The detection mechanism includes: A height sensor is connected to the controller, and is used to detect the user's height information and feed it back to the controller of the range hood.

9. The range hood according to any one of claims 1 to 5, characterized in that: The user information includes distance information between the user and the range hood, and the detection mechanism further includes: A distance sensor is connected to the controller, and is used to detect the distance information between the user and the range hood and feed it back to the controller of the range hood.

10. The range hood according to any one of claims 1 to 5, characterized in that: The fan module (20) further comprises: an opening and closing panel (25) movably arranged at the air outlet (210); A push rod mechanism (26) is connected to the opening and closing panel (25) and is used to control the opening and closing panel (25) to move between a first position for opening the air outlet (210) and a second position for closing the air outlet (210).

Images