Range hood

Abstract

The utility model discloses a range hood and relates to the technical field of lampblack treatment. The range hood comprises a range hood main body, a fan assembly and a flow guide assembly, an air cavity is formed in the range hood body, and the fan assembly is installed in the air cavity. The flow guide assembly is located at an air outlet of the draught fan assembly, and airflow generated when the draught fan assembly works penetrates through the flow guide assembly to be blown out of the range hood body. According to the range hood, the fan assembly is integrated on the range hood, and through cooperation of the flow guide assembly, airflow generated by the fan assembly is blown to the front side, close to a cooking bench heat source, of a user, so that the wind feeling felt by the user is increased, and the comfort level of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil fume treatment technology, and in particular to an oil fume hood. Background Technology

[0002] When the room temperature is high, users will be in a high-temperature and high-humidity environment for a long time when cooking food in the kitchen, which will greatly reduce the user's environmental comfort.

[0003] To improve environmental comfort, users commonly install appliances such as fans or ceiling fans in the kitchen for cooling. However, because these appliances are installed high up and far from the heat source of the cooking stove, users experience less airflow while cooking, thus reducing their comfort. Utility Model Content

[0004] This invention addresses the problem that high installation positions of cooling appliances, far from heat sources, result in low user comfort during food cooking. The aim is to provide a range hood that overcomes or at least partially solves these problems.

[0005] This utility model provides a range hood, the range hood comprising:

[0006] The main body of the range hood has an air cavity formed thereon;

[0007] Fan assembly, the fan assembly being located within the air cavity;

[0008] A flow guiding component is located at the air outlet of the fan assembly, through which the airflow generated by the fan assembly during operation is blown towards the user outside the main body of the range hood.

[0009] In one optional utility model, the range hood further includes a linear drive assembly installed inside the air cavity. The fan assembly is connected to the linear drive assembly in a transmission manner. When the linear drive assembly is activated, it drives the fan assembly to perform linear motion to adjust the blowing position of the fan assembly.

[0010] An optional utility model embodiment, wherein the linear drive assembly comprises:

[0011] A drive motor, which is fixed inside the main body of the range hood;

[0012] A linear transmission unit is provided, which is connected to the output shaft of the drive motor and to the fan assembly. When the drive motor outputs rotational motion, it is converted into linear motion through the linear transmission unit to drive the fan assembly to perform linear motion.

[0013] An optional utility model embodiment, wherein the linear transmission unit comprises:

[0014] A transmission gear, which is coaxially fixed with the output shaft of the drive motor;

[0015] A transmission rack is slidably connected to the main body of the smoke hood and meshes with the transmission gear. The fan assembly is driven by the transmission rack.

[0016] An optional utility model embodiment, wherein the linear transmission unit comprises:

[0017] A lead screw is rotatably connected to the main body of the smoke machine and is fixed coaxially with the output shaft of the drive motor;

[0018] A nut is fitted onto the lead screw and is connected to the fan assembly for transmission, so that when the drive motor is working, the nut drives the fan assembly to move linearly along the lead screw.

[0019] In one optional utility model, the range hood further includes a movable guide assembly located within the air cavity and fixedly connected to the fan assembly, wherein the movable guide assembly is connected to the linear transmission unit.

[0020] An optional utility model embodiment, wherein the motion guiding component comprises:

[0021] A slide rail, which is fixed to the main body of the range hood;

[0022] A slider is slidably connected to the slide rail and fixedly connected to the fan assembly, wherein the slider is fixedly connected to the linear transmission unit.

[0023] An optional utility model includes a movable slide groove provided within the air cavity, and the movable guide assembly further includes:

[0024] At least two pulleys, with at least two pulleys located in the movable chute;

[0025] The base plate is rotatably connected to the pulley and fixedly connected to the fan assembly, wherein the base plate is fixedly connected to the linear transmission unit.

[0026] An optional utility model includes an air outlet on the side of the main body of the smoke hood that communicates with the air passage of the air chamber;

[0027] The airflow guiding component includes at least one airflow guiding plate, which is installed at the air outlet and is inclined so that the airflow direction of the fan component is inclined downward.

[0028] An optional utility model embodiment further includes:

[0029] A rotating shaft, which is fixed to the guide plate and rotatably connected to the main body of the smoke machine;

[0030] A flow guide motor is fixed to the main body of the range hood and coaxially fixed with the rotating shaft. When the flow guide motor is working, it drives the flow guide plate to rotate, so as to adjust the air outlet direction of the fan assembly.

[0031] In one optional utility model, when the airflow guiding assembly includes at least two airflow guiding plates, the at least two airflow guiding plates are distributed at intervals from top to bottom at the air outlet, and the airflow guiding assembly further includes:

[0032] At least two rotating shafts, each of which is fixed to the guide plate and rotatably connected to the main body of the smoke machine;

[0033] The guide rods are hinged to the guide plates and are vertically arranged.

[0034] A flow guiding linear unit is fixedly connected to the flow guiding rod. When the flow guiding linear unit is working, it drives the flow guiding rod to move up and down, so that the flow guiding plate rotates around the rotation axis.

[0035] An optional utility model includes a range hood body with at least one air inlet on the top that communicates with the air passage of the air chamber, and the range hood also includes a filter screen installed at the air inlet.

[0036] An optional utility model includes a fan assembly comprising at least one fan.

[0037] Compared with existing technologies, this utility model includes a range hood body, a fan assembly, and an airflow guide assembly. The range hood body has an air cavity, and the fan assembly is installed within the air cavity. The airflow guide assembly is located at the air outlet of the fan assembly, and the airflow generated by the fan assembly during operation is blown outwards from the range hood body through the airflow guide assembly. Thus, by integrating the fan assembly into the range hood and cooperating with the airflow guide assembly, the airflow generated by the fan assembly is directed towards the front side of the user's body closest to the heat source of the stove, thereby increasing the perceived airflow and improving user comfort.

[0038] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0039] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0040] In the attached diagram:

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

[0042] Figure 2 This is a three-dimensional structural diagram of a range hood after the flow guiding component has been removed, according to an embodiment of the present utility model.

[0043] Figure 3 This is a top view structural diagram of a range hood provided in an embodiment of the present utility model;

[0044] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0045] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0046] Figure 6 This is a schematic diagram of the structure of a flow guiding component provided in an embodiment of this utility model;

[0047] Figure 7 yes Figure 5 Enlarged structural diagram at point C;

[0048] Figure 8 This is a schematic diagram of another moving guide component provided in an embodiment of the present invention;

[0049] Figure 9 This is a schematic diagram of another range hood provided in an embodiment of the present utility model;

[0050] Figure 10 This is a schematic diagram of another flow guiding component provided in an embodiment of the present utility model;

[0051] Reference numerals in the attached drawings: 1. Main body of the range hood; 101. Air cavity; 2. Fan assembly; 3. Flow guide assembly; 31. Flow guide plate; 32. Rotating shaft; 33. Flow guide rod; 34. Flow guide linear unit; 35. Flow guide motor; 4. Linear drive assembly; 41. Drive motor; 42. Linear transmission unit; 421. Transmission gear; 422. Transmission rack; 5. Moving guide assembly; 51a. Slide rail; 52a. Slider; 51b. Pulley; 52b. Base plate; 6. Filter screen; 7. Distance sensor; 8. Controller. Detailed Implementation

[0052] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0053] When the room temperature is high, users will be in a high-temperature and high-humidity environment for a long time when cooking food in the kitchen, which will greatly reduce the user's environmental comfort.

[0054] To improve environmental comfort, users commonly install appliances such as fans or ceiling fans in the kitchen for cooling. However, because these appliances are installed high up and far from the heat source of the cooking stove, users experience less airflow while cooking, thus reducing their comfort.

[0055] Based on the aforementioned technical problems, this utility model embodiment is proposed. This utility model embodiment may include a range hood body 1, a fan assembly 2, and an airflow guide assembly 3. The range hood body 1 has an air cavity 101, and the fan assembly 2 is installed within the air cavity 101. The airflow guide assembly 3 is located at the air outlet of the fan assembly 2. When the fan assembly 2 is working, the airflow generated is blown towards the user outside the range hood body 1 through the airflow guide assembly 3. Thus, by integrating the fan assembly 2 onto the range hood, and with the cooperation of the airflow guide assembly 3, the airflow generated by the fan assembly 2 is blown towards the user's front side near the heat source of the stove, thereby increasing the perceived airflow and improving user comfort.

[0056] Reference Figure 1-10This utility model provides a range hood, which may include a range hood body 1, a fan assembly 2, and a flow guiding assembly 3. The range hood body 1 has an air cavity 101, the fan assembly 2 is located within the air cavity 101, and the flow guiding assembly 3 is located at the air outlet of the fan assembly 2. When the fan assembly 2 is working, the airflow generated passes through the flow guiding assembly 3 and is directed towards the user outside the range hood body 1.

[0057] In this embodiment of the invention, the range hood body 1 provides installation space for the fan assembly 2 and the air guide assembly 3. The fan assembly 2 outputs airflow for cooling the user, and the air guide assembly 3 directs the airflow outside the range hood body 1. The range hood body 1 has an air cavity 101, and the fan assemblies 2 are all located within the air cavity 101. The air guide assembly 3 is located at the air outlet of the fan assembly 2 and guides the airflow from the outlet. The airflow passes through the air guide assembly 3 and blows out of the range hood body 1, and towards the user, allowing the user to feel the breeze from their front side, reducing the perceived temperature from the stove's heat source, and thus improving the user's comfort while cooking in the kitchen.

[0058] The main body 1 of the range hood also includes a smoke chamber at the bottom and an exhaust fan located in the smoke chamber. When the exhaust fan is working, it absorbs the oil fumes generated in the kitchen into the smoke chamber and discharges them to the outside through the exhaust pipe.

[0059] An optional embodiment of the utility model, referring to... Figure 5 and Figure 7 As shown, the range hood also includes a linear drive assembly 4, which is installed in the air cavity 101. The fan assembly 2 is connected to the linear drive assembly 4. When the linear drive assembly 4 is activated, it drives the fan assembly 2 to move in a straight line to adjust the blowing position of the fan assembly 2.

[0060] In this embodiment of the invention, the linear drive assembly 4 is located within the air cavity 101 and is used to output linear motion. The fan assembly 2 is driveably connected to the linear drive assembly 4. This drive connection can be understood as the linear motion output by the linear drive assembly 4 driving the fan assembly 2 to perform synchronous linear motion, thereby adjusting the position of the fan assembly 2 within the air cavity 101, i.e., adjusting the air blowing position of the fan assembly 2 towards the outside of the range hood body 1. This air blowing position can be adjusted along the horizontal direction of the range hood body 1.

[0061] An optional embodiment of the utility model, referring to... Figure 5 and Figure 7As shown, the linear drive assembly 4 may include a drive motor 41 and a linear transmission unit 42. The drive motor 41 is fixed inside the main body 1 of the range hood. The linear transmission unit 42 is driven by the output shaft of the drive motor 41 and is also driven by the fan assembly 2. When the drive motor 41 outputs rotational motion, it is converted into linear motion by the linear transmission unit 42 to drive the fan assembly 2 to perform linear motion.

[0062] In this embodiment of the invention, the drive motor 41 is used to output rotational motion, and the linear transmission unit 42 is used to convert the rotational motion into linear motion. The drive motor 41 is fixed inside the main body 1 of the range hood. For example, the drive motor 41 can be fixed inside the air cavity 101. Alternatively, a mounting cavity separated from the air cavity 101 can be opened inside the main body 1 of the range hood, and the drive motor 41 can be installed inside the mounting cavity; no further limitations are made here. The linear transmission unit 42 is connected to the output shaft of the drive motor 41, so that when the drive motor 41 is working, rotational motion is output through the output shaft of the drive motor 41 and transmitted to the linear transmission unit 42. Thus, the rotational motion is converted into linear motion through the linear transmission unit 42, and the linear motion is transmitted to the fan assembly 2, which is connected to the linear transmission unit 42. This causes the fan assembly 2 to reciprocate linearly with the forward and reverse rotation of the drive motor 41, thereby adjusting the air outlet position of the fan assembly 2.

[0063] An optional embodiment of the utility model, referring to... Figure 7 As shown, the linear transmission unit 42 may include a transmission gear 421 and a transmission rack 422. The transmission gear 421 is coaxially fixed with the output shaft of the drive motor 41. The transmission rack 422 is slidably connected in the smoke hood body 1 and meshes with the transmission gear 421. The fan assembly 2 is connected to the transmission rack 422 in a transmission connection.

[0064] In this embodiment of the invention, the linear transmission unit 42 may include a transmission gear 421 and a transmission rack 422. The transmission gear 421 is coaxially fixed to the output shaft of the drive motor 41. Coaxial fixing can be understood as the central axis of the transmission gear 421 coinciding with the central axis of the output shaft of the drive motor 41, and the center of the transmission gear 421 being fixed to the center of the output shaft of the drive motor 41. Thus, when the drive motor 41 is operating, it drives the transmission gear 421 to rotate synchronously.

[0065] The transmission rack 422 is slidably connected to the main body 1 of the range hood. For example, both ends of the transmission rack 422 can be respectively embedded in the main body 1 of the range hood, so that the main body 1 of the range hood can limit the transmission rack 422, allowing it to move in a specific direction. The transmission rack 422 is meshed with the transmission gear 421, so that when the transmission gear 421 rotates, it drives the transmission rack 422 to move linearly. The fan assembly 2 is driven by the transmission rack 422, so that the transmission rack 422 drives the fan assembly 2 to move linearly synchronously, thereby adjusting the air outlet position of the fan assembly 2.

[0066] In another optional embodiment of the utility model, the linear transmission unit 42 may include a lead screw and a nut. The lead screw is rotatably connected to the main body 1 of the smoke hood and is coaxially fixed with the output shaft of the drive motor 41. The nut is sleeved on the lead screw and is drively connected to the fan assembly 2 so that when the drive motor 41 is working, the nut drives the fan assembly 2 to move linearly along the lead screw.

[0067] In this embodiment of the present invention, the linear transmission unit 42 may include a lead screw and a nut pair. That is, the linear transmission unit 42 may include a lead screw and a nut. The lead screw is rotatably connected to the main body 1 of the smoke hood via a bearing seat or other device. The lead screw is coaxially fixed to the output shaft of the drive motor 41. Coaxial fixing can be understood as the central axis of the lead screw coinciding with the central axis of the output shaft of the drive motor 41, forming a fixed connection. The lead screw and the output shaft of the drive motor 41 can be fixed via a coupling or other device. The nut is sleeved on the lead screw and is connected to the fan assembly 2 for transmission. Thus, when the drive motor 41 is working, it drives the lead screw to rotate, causing the nut sleeved on the lead screw to move linearly along the axial direction of the lead screw, synchronously driving the fan assembly 2 to move linearly, thereby adjusting the air outlet position of the fan assembly 2.

[0068] In some embodiments, the fan assembly 2 can be directly and fixedly connected to the linear motion element in the linear transmission unit 42, thereby realizing the transmission of linear motion. In other embodiments, the fan assembly 2 can be indirectly connected to the linear motion element in the linear transmission unit 42, thereby realizing the transmission of linear motion.

[0069] An optional embodiment of the utility model, referring to... Figure 2 and Figure 5 As shown, the range hood also includes a movable guide assembly 5, which is located inside the air cavity 101 and is fixedly connected to the fan assembly 2. The movable guide assembly 5 is connected to the linear transmission unit 42.

[0070] In this embodiment of the invention, the movable guide component 5 provides an assembly area for the fan component 2 and reduces the motion resistance of the fan component 2 during linear motion. For example, the movable guide component 5 is located within the air cavity 101, and the fan component 2 is fixed to the movable guide component 5. The movable guide component 5 is fixedly connected to the linear transmission unit 42, thereby driving the movable guide component 5 to perform linear motion through the linear transmission unit 42, so that the fan component 2 located on the movable guide component 5 performs linear motion synchronously.

[0071] An optional embodiment of the utility model, referring to... Figure 7 As shown, the moving guide component 5 may include a slide rail 51a and a slider 52a. The slide rail 51a is fixed to the main body 1 of the range hood, and the slider 52a is slidably connected to the slide rail 51a and fixedly connected to the fan component 2. The slider 52a is fixedly connected to the linear transmission unit 42.

[0072] In this embodiment of the invention, the moving guide component 5 may include a slide rail 51a and a slider 52a. The slider 52a is slidably connected to the slide rail 51a. The axial direction of the slide rail 51a is parallel to the linear motion direction of the linear transmission unit 42, and the slider 52a is fixedly connected to the linearly moving element in the linear transmission unit 42. For example, the slider 52a may be fixedly connected to the transmission rack 422. Alternatively, the slider 52a may be fixedly connected to the nut. The fan assembly 2 is fixed to the slider 52a, so that when the linear transmission unit 42 outputs linear motion, it can drive the slider 52a and the fan assembly 2 to move synchronously.

[0073] Another optional embodiment of the utility model, see below. Figure 8 As shown, a movable slide groove is provided inside the air cavity 101. The movable guide assembly 5 may further include at least two pulleys 51b and a base plate 52b, with at least two pulleys 51b located in the movable slide groove. The base plate 52b is rotatably connected to the pulleys 51b and fixedly connected to the fan assembly 2, wherein the base plate 52b is fixedly connected to the linear transmission unit 42.

[0074] In this embodiment of the invention, a movable groove is further provided on the main body 1 of the smoke machine located in the air cavity 101. The length direction of the movable groove is parallel to the linear motion direction of the linear transmission unit 42. The movable guide assembly 5 may further include at least two pulleys 51b and a base plate 52b. The base plate 52b is rotatably connected to the at least two pulleys 51b. The pulleys 51b are located in the movable groove, and under the action of external force, the pulleys 51b can roll along the movable groove. The fan assembly 2 is fixed on the base plate 52b, and the linear motion element in the linear transmission unit 42 is fixedly connected to the base plate 52b. For example, the base plate 52b may be fixedly connected to the transmission rack 422. Alternatively, the base plate 52b may be fixedly connected to the nut, so that when the linear motion is output by the linear transmission unit 42, the base plate 52b and the fan assembly 2 can move synchronously. The rolling motion of the pulley 51b can further reduce the movement resistance of the fan assembly 2 and improve the ease of movement of the fan assembly 2.

[0075] An optional embodiment of the utility model, referring to... Figure 1 , Figure 5 as well as Figure 9 As shown, the side of the main body 1 of the range hood has an air outlet that communicates with the air passage of the air chamber 101. The airflow guiding assembly 3 includes at least one airflow guiding plate 31, which is installed at the air outlet and is inclined so that the airflow direction of the fan assembly 2 is inclined downward.

[0076] In this embodiment of the invention, considering the independence of the smoke chamber and the air chamber 101, the air outlet of the air chamber 101 can be opened on the side of the range hood body 1. For example, the air outlet can be opened on the side of the range hood body 1 closest to the user. The airflow guiding assembly 3 can include at least one airflow guide plate 31. Considering that range hoods are generally installed above the stove, the side of the range hood is usually located above and to the side of the user when cooking. Therefore, the airflow guide plate 31 can be inclined at the air outlet. This makes the airflow direction corresponding to the airflow from the fan assembly 2 inclined downward, thereby enhancing the airflow felt by the user and improving user comfort.

[0077] An optional embodiment of the utility model, referring to... Figure 10 As shown, the airflow guiding assembly 3 may further include a rotating shaft 32 and an airflow guiding motor 35. The rotating shaft 32 is fixed to the airflow guiding plate 31 and rotatably connected to the main body 1 of the range hood. The airflow guiding motor 35 is fixed to the main body 1 of the range hood and coaxially fixed to the rotating shaft 32. When the airflow guiding motor 35 is working, it drives the airflow guiding plate 31 to rotate, thereby adjusting the airflow direction of the fan assembly 2.

[0078] In this embodiment of the present invention, the airflow guiding component 3 may further include a rotating shaft 32 and an airflow guiding motor 35, wherein the rotating shaft 32 is fixed to the airflow guiding plate 31 and rotatably connected to the main body 1 of the smoke hood, so that the airflow guiding plate 31 can rotate around the rotating shaft 32 under the action of external force, thereby adjusting the airflow direction of the fan component 2.

[0079] The flow-guiding motor 35 is fixed to the main body 1 of the range hood and is coaxially fixed to the rotating shaft 32. Coaxial fixing means that the output shaft of the flow-guiding motor 35 and the rotating shaft 32 are fixed, and the central axis of the flow-guiding motor 35 coincides with the central axis of the rotating shaft 32. When the flow-guiding motor 35 rotates forward and backward, it drives the guide plate 31 to reciprocate, thereby adjusting the airflow direction of the fan assembly 2 by controlling the rotation angle of the guide plate 31. For example, the rotation angle of the guide plate 31 can be adjusted according to the user's height, so that the airflow direction of the fan assembly 2 is directly facing the user's face or located below the user's head.

[0080] An optional embodiment of the utility model, referring to... Figure 5 and Figure 6 As shown, when the airflow guiding assembly 3 includes at least two airflow guiding plates 31, the at least two airflow guiding plates 31 are distributed at intervals from top to bottom at the air outlet. The airflow guiding assembly 3 may also include at least two rotating shafts 32, airflow guiding rods 33, and an airflow guiding linear unit 34. Each rotating shaft 32 is fixed to the airflow guiding plate 31 and rotatably connected to the main body 1 of the range hood. The airflow guiding rods 33 are respectively hinged to the airflow guiding plates 31 and are vertically arranged. The airflow guiding linear unit 34 is fixedly connected to the airflow guiding rods 33. When the airflow guiding linear unit 34 is working, it drives the airflow guiding rods 33 to move up and down, so that the airflow guiding plates 31 rotate around the rotating shafts 32.

[0081] In this embodiment of the present invention, when the airflow guiding assembly 3 includes at least two airflow guiding plates 31, the at least two airflow guiding plates 31 are distributed at intervals from top to bottom at the air outlet. The airflow guiding assembly 3 may also include at least two rotating shafts 32, airflow guiding rods 33, and airflow guiding linear components. The number of airflow guiding plates 31 is adapted to the number of rotating shafts 32. Each rotating shaft 32 is fixed to each airflow guiding plate 31 and rotatably connected to the shape of the smoke machine body 1. Thus, each airflow guiding plate 31 can rotate around the rotating shaft 32 under the action of external force. One end of the airflow guiding plate 31 located within the air cavity 101 can be hinged to the airflow guiding rod 33. For example, the airflow guiding rod 33 is vertically arranged, allowing it to move up and down under the action of external force, pulling the airflow guiding plate 31 to rotate around the rotating shaft 32. Therefore, the airflow direction of the fan assembly 2 can be adjusted by adjusting the deflection angle of the airflow guiding plate 31.

[0082] The flow guiding linear unit 34 is used to output linear motion. The flow guiding linear unit 34 is fixedly connected to the flow guiding rod 33 to drive the flow guiding rod 33 to perform lifting and lowering movements. For example, the flow guiding linear unit 34 can be a device such as an electric telescopic rod.

[0083] An optional embodiment of the utility model, referring to... Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, the top of the range hood body 1 is provided with at least one air inlet that communicates with the air passage of the air cavity 101. The range hood also includes a filter screen 6, which is installed at the air inlet.

[0084] In this embodiment of the invention, the air inlet provides a channel for airflow from outside the main body 1 of the range hood to enter the air cavity 101. The air inlet can be located at the top of the main body 1 of the range hood. The filter 6 is installed at the air inlet to filter impurities such as oil fumes in the airflow, thereby ensuring the cleanliness of the airflow blown to the user. The cross-sectional shape of the filter 6 in the horizontal plane matches the shape of the air inlet. For example, the filter 6 can be fixed to the main body 1 by means of screws, snap-fit, or other methods.

[0085] For example, the cross-sectional shape of the air inlet can be rectangular, circular, or rhomboid. Those skilled in the art can determine the specific shape according to actual design requirements, and no further limitations are imposed here.

[0086] An optional embodiment of the utility model, referring to... Figure 2 and Figure 9 As shown, the fan assembly 2 includes at least one fan.

[0087] In this embodiment of the invention, the fan assembly 2 may include at least one fan. That is, those skilled in the art can determine the specific number of fans based on the size and airflow of the corresponding fan. For example, the fan assembly 2 may include two fans, etc., without further limitation. This expands the area where the user experiences airflow from the front, improving user comfort.

[0088] In some embodiments, the fan may include, but is not limited to, axial flow fans, centrifugal fans, mixed flow fans, etc.

[0089] In some embodiments of the utility model, reference is made to Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, the range hood may further include a distance sensor 7 and a controller 8 electrically connected to the distance sensor 7. The distance sensor 7 is installed on the side of the range hood body 1. The controller 8 is used to receive the voltage signal transmitted by the distance sensor 7, thereby determining whether there is a user in front of the range hood by detecting the fluctuation amplitude of the voltage signal. The distance sensor 7 may include, but is not limited to, an infrared sensor, an ultrasonic sensor, etc.

[0090] In summary, this utility model discloses a range hood, which may include a range hood body 1, a fan assembly 2, and an airflow guide assembly 3. The range hood body 1 has an air cavity 101, and the fan assembly 2 is installed within the air cavity 101. The airflow guide assembly 3 is located at the air outlet of the fan assembly 2, and the airflow generated by the fan assembly 2 during operation is blown towards the user outside the range hood body 1 through the airflow guide assembly 3. Thus, by integrating the fan assembly 2 into the range hood, and with the cooperation of the airflow guide assembly 3, the airflow generated by the fan assembly 2 is directed towards the user's front side near the heat source of the stove, thereby increasing the perceived airflow and improving user comfort.

[0091] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0092] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible. Therefore, any combination of the above embodiments is an implementation scheme of this utility model. However, due to space limitations, this specification will not describe them in detail here.

[0093] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0094] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0095] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. A range hood, characterized in that, The range hood includes: The main body of the range hood (1) is provided with an air cavity (101); Fan assembly (2), the fan assembly (2) being located within the air cavity (101); The airflow guide component (3) is located at the air outlet of the fan assembly (2). When the fan assembly (2) is working, the airflow generated is blown through the airflow guide component (3) to the user outside the main body (1) of the smoke hood.

2. The range hood according to claim 1, characterized in that, The range hood also includes a linear drive assembly (4), which is installed in the air cavity (101). The fan assembly (2) is connected to the linear drive assembly (4) in a transmission manner. When the linear drive assembly (4) is activated, it drives the fan assembly (2) to make linear movements in order to adjust the blowing position of the fan assembly (2).

3. The range hood according to claim 2, characterized in that, The linear drive component (4) includes: A drive motor (41) is fixed inside the main body (1) of the smoke hood; A linear transmission unit (42) is connected to the output shaft of the drive motor (41) and to the fan assembly (2). When the drive motor (41) outputs rotational motion, it is converted into linear motion through the linear transmission unit (42) to drive the fan assembly (2) to perform linear motion.

4. The range hood according to claim 3, characterized in that, The linear transmission unit (42) includes: A transmission gear (421) is fixed coaxially with the output shaft of the drive motor (41); A transmission rack (422) is slidably connected in the main body (1) of the smoke machine and meshes with the transmission gear (421). The fan assembly (2) is connected to the transmission rack (422) in a transmission connection.

5. The range hood according to claim 3, characterized in that, The linear transmission unit (42) includes: A lead screw is rotatably connected to the main body (1) of the smoke machine and is coaxially fixed with the output shaft of the drive motor (41); A nut is fitted onto the lead screw and is connected to the fan assembly (2) for transmission, so that when the drive motor (41) is working, the nut drives the fan assembly (2) to move linearly along the lead screw.

6. The range hood according to claim 3, characterized in that, The range hood also includes a movable guide assembly (5), which is located inside the air cavity (101) and is fixedly connected to the fan assembly (2). The movable guide assembly (5) is connected to the linear transmission unit (42).

7. The range hood according to claim 6, characterized in that, The motion guidance component (5) includes: A slide rail (51a) is fixed to the main body (1) of the smoke hood; A slider (52a) is slidably connected to the slide rail (51a) and fixedly connected to the fan assembly (2), wherein the slider (52a) is fixedly connected to the linear transmission unit (42).

8. The range hood according to claim 6, characterized in that, The air cavity (101) is provided with a movable slide groove, and the movable guide assembly (5) further includes: At least two pulleys (51b) are located in the movable chute; The base plate (52b) is rotatably connected to the pulley (51b) and fixedly connected to the fan assembly (2), wherein the base plate (52b) is fixedly connected to the linear transmission unit (42).

9. The range hood according to claim 1, characterized in that, The side of the main body (1) of the smoke hood is provided with an air outlet that is connected to the air passage of the air cavity (101); The airflow guiding component (3) includes at least one airflow guiding plate (31), which is installed at the air outlet and is inclined so that the airflow direction of the fan component (2) is inclined downward.

10. The range hood according to claim 9, characterized in that, The flow guiding component (3) also includes: A rotating shaft (32) is fixed to the guide plate (31) and rotatably connected to the main body (1) of the smoke machine; The guide motor (35) is fixed on the main body (1) of the smoke machine and is coaxially fixed with the rotating shaft (32). When the guide motor (35) is working, it drives the guide plate (31) to rotate so as to adjust the air outlet direction of the fan assembly (2).

11. The range hood according to claim 9, characterized in that, When the airflow guiding assembly (3) includes at least two airflow guiding plates (31), the at least two airflow guiding plates (31) are distributed at intervals from top to bottom at the air outlet, and the airflow guiding assembly (3) further includes: At least two rotating shafts (32), each of the rotating shafts (32) being fixed to the guide plate (31) and rotatably connected to the main body (1) of the smoke machine; The guide rod (33) is hinged to the guide plate (31) and is vertically arranged; The flow guiding straight unit (34) is fixedly connected to the flow guiding rod (33). When the flow guiding straight unit (34) is working, it drives the flow guiding rod (33) to make a lifting motion so that the flow guiding plate (31) rotates around the rotating axis (32).

12. The range hood according to claim 1, characterized in that, The top of the main body (1) of the range hood is provided with at least one air inlet that is connected to the air passage of the air cavity (101). The range hood also includes a filter screen (6), which is installed at the air inlet.

13. The range hood according to claim 1, characterized in that, The fan assembly (2) includes at least one fan.

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