Range hood

Abstract

The utility model relates to the technical field of kitchen appliances, and provides a range hood which comprises a range hood body, the range hood body is provided with an inner cavity and a smoke suction port, the smoke suction port communicates with the inner cavity, and oil smoke enters the inner cavity through the smoke suction port; the noise reduction assembly is located in the inner cavity and comprises a magnetic part, and the magnetic part is attracted to the range hood body; and the damping piece is connected with the magnetic piece. The range hood provided by the utility model is relatively low in noise during working.

Description

Technical Field

[0001] This application relates to kitchen appliance technology, and more particularly to a range hood. Background Technology

[0002] A range hood, also known as a kitchen exhaust fan, is an electrical appliance used in kitchens to remove fumes, steam, odors, and other air pollutants produced during cooking. Its main function is to use mechanical ventilation to draw in cooking fumes and odors and expel them outdoors, thereby keeping the kitchen air fresh and reducing the impact of cooking fumes on human health and the pollution of the kitchen environment.

[0003] In related technologies, a range hood includes an interconnected frame structure and a housing structure. The frame structure is located on top of the housing structure and includes a fan assembly. The housing structure is provided with a smoke inlet. Under the action of the fan assembly, the fumes enter the fan assembly through the smoke inlet.

[0004] However, range hoods are quite noisy when they are working. Utility Model Content

[0005] This application provides a range hood that operates with low noise.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a range hood, including:

[0008] The range hood body has an inner cavity and a smoke inlet that connects to the inner cavity, through which fumes enter the inner cavity.

[0009] The noise reduction component, located within the cavity, includes:

[0010] Magnetic components are attached to the range hood body.

[0011] Damping element, which is connected to magnetic element.

[0012] The range hood described in this application, by comprising a range hood body and a noise reduction component, includes a smoke inlet in the range hood body that communicates with the inner cavity. Cooking fumes enter the inner cavity through the smoke inlet, and the noise reduction component within the inner cavity reduces the noise during operation. The noise reduction component includes damping elements and magnetic elements. The damping elements convert input vibration energy into their own internal energy, thus reducing noise. The magnetic elements act as a counterweight, altering the vibration mode and reducing vibration modes, thereby lowering vibration noise. Furthermore, the magnetic elements can be attached to the range hood body, making installation convenient.

[0013] In some embodiments, the range hood body includes:

[0014] A first housing, the first housing having a first inner cavity;

[0015] The fan assembly is located in the first inner cavity;

[0016] The second housing is connected to the first housing and is located at the bottom of the first housing. The second housing has a second inner cavity that communicates with the first inner cavity. The second housing also has a smoking port.

[0017] The smoke collection assembly is located in the second inner cavity and has a smoke collection chamber that is connected to the smoke inlet.

[0018] Under the action of the fan assembly, the fumes enter the fan assembly through the smoke inlet, the smoke collection chamber and the first inner chamber.

[0019] In this way, by setting up a smoke collection component to guide the flow direction of the fumes, it is beneficial to exhaust the fumes.

[0020] In some embodiments, the noise reduction component is disposed on the outer wall of the fan assembly, and the magnetic element is attracted to the outer wall of the fan assembly.

[0021] When a range hood is running, the oil fume flow rate inside the fan assembly is relatively high, and the vibration noise generated by the motor of the fan assembly is relatively large. Placing noise reduction components on the fan assembly is beneficial to reducing the noise of the range hood. Placing the noise reduction components on the outer wall of the fan assembly will not obstruct the flow of oil fumes.

[0022] In some embodiments, the noise reduction component is disposed on the outer wall of the smoke collection component, and the magnetic component is attracted to the outer wall of the smoke collection component.

[0023] When the range hood is running, the oil fume flow rate inside the smoke collection component is relatively high. Placing the noise reduction component on the smoke collection component helps to reduce the noise of the range hood. Moreover, placing the noise reduction component on the outer wall of the smoke collection component makes it less likely to obstruct the flow of oil fumes.

[0024] In some embodiments, the fan assembly includes a volute, the volute including a central portion and an involute portion connected to each other, the involute portion extending in the same direction as the involute direction of the central portion;

[0025] The noise reduction component is located between the central part and the involute part, and is situated at a separation point between the central part and the involute part. The noise reduction component is connected to both the central part and the involute part.

[0026] Locations with higher gas flow rates generate greater vibration and noise. Positioning the noise reduction component at these locations yields better noise reduction. In this embodiment, the noise reduction component is located between the center and the involute section, specifically at the separation point between them. In other words, the noise reduction component is located at the tongue of the volute, where the gas flow rate is higher within the corresponding internal region, resulting in better noise reduction.

[0027] In some embodiments, the volute is provided with a molding cavity, and the noise reduction component is disposed inside the molding cavity.

[0028] In this way, the strength of the volute can be improved by setting the molding cavity. Moreover, the molding cavity can also serve a positioning function, making it easier to determine the installation position of the noise reduction components during assembly and improving installation efficiency.

[0029] In some embodiments, the shape of the noise reduction component matches the shape of the molding cavity.

[0030] In this way, the inner wall of the molding cavity can restrict the movement of the noise reduction components, which helps to ensure the accuracy of the installation position of the noise reduction components.

[0031] In some embodiments, the size of the smoke collection assembly decreases along its width from the bottom to the top of the smoke collection assembly.

[0032] The noise reduction components are located on opposite sides of the smoke collection component along its width.

[0033] When cooking fumes flow through the fume collection chamber of the fume collection assembly, the sidewalls on opposite sides of the assembly along the width direction have a significant guiding effect on the fumes, resulting in a greater impact force and thus generating more noise. Placing noise reduction components on opposite sides of the fume collection assembly along the width direction can improve the noise reduction effect.

[0034] In some embodiments, the shape of the damping element matches that of the magnetic element.

[0035] Similarly, the contact area between the damping component and the magnetic component can be larger, and more connectors or adhesives can be provided, thereby increasing the reliability of the connection between the damping component and the magnetic component.

[0036] In some embodiments, the thickness of the magnetic component is 1-1.5 mm, and the thickness of the damping component is 1-20 mm.

[0037] When the thickness of the magnetic component is less than 1mm, the magnetic component is too thin and its adsorption force is insufficient, making it prone to displacement under the wind force of the fan assembly. When the thickness of the magnetic component is greater than 1.5mm, the excessive thickness of the magnetic component is not conducive to transmitting the vibration of the range hood body to the damping component.

[0038] When the thickness of the damping component is less than 1mm, the damping effect is poor due to its small size. When the thickness of the damping component is greater than 20mm, the damping effect is large, resulting in high cost and weight. Furthermore, after the thickness exceeds 20mm, the improvement in vibration reduction effect of the damping component decreases only slightly with further increases in thickness. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a range hood provided in an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the structure of the noise reduction component in the range hood provided in the embodiments of this application;

[0042] Figure 3 for Figure 1 A schematic diagram of the structure of a range hood after removing part of the first housing and part of the second housing;

[0043] Figure 4 for Figure 1 A schematic diagram of an alternative structure for a range hood after removing part of the first housing and part of the second housing;

[0044] Figure 5 This is a schematic diagram of the structure of the fan assembly and noise reduction assembly in the range hood provided in the embodiments of this application;

[0045] Figure 6 for Figure 5 Another structural diagram from a different angle;

[0046] Figure 7 for Figure 5 Exploded view;

[0047] Figure 8 This is a schematic diagram of the structure of the fan assembly in the range hood provided in the embodiments of this application;

[0048] Figure 9 for Figure 8 Another structural diagram;

[0049] Figure 10 A schematic diagram of the structure of the second housing, smoke collection assembly, oil mesh assembly, and smoke guide plate assembly in the range hood provided in the embodiments of this application;

[0050] Figure 11 for Figure 10Exploded view;

[0051] Figure 12 This is a schematic diagram of the structure of the smoke collection component and the noise reduction component in the range hood provided in the embodiments of this application;

[0052] Figure 13 for Figure 12 Exploded view.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100-Range hood body; 110-Smoke inlet; 120-First housing; 130-Fan assembly; 131-Motor; 132-Impeller; 133-Volume casing; 1331-Center section; 1332-Involute section; 1333-Forming cavity; 140-Second housing; 150-Smoke collection assembly; 160-Oil filter assembly; 170-Smoke guide plate assembly;

[0055] 200 - Noise reduction component; 210 - Magnetic component; 220 - Damping component. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0057] In related technologies, during the operation of a range hood, the fan assembly causes the gas to move at high speed inside the range hood. This gas movement causes structural components to vibrate, generating noise. Areas with higher gas flow rates produce greater vibration and noise. The fan assembly is prone to high-frequency vibration during operation, and structures connected to the fan assembly are also prone to high-frequency vibration, producing noise and affecting the user experience.

[0058] Analysis revealed that excessive vibration and noise are usually caused by insufficient structural rigidity. When structural rigidity is insufficient, the vibration amplitude is greater when subjected to high-speed gas impact, resulting in greater vibration and noise. Increasing the thickness of structural components or adding reinforcing parts can increase structural rigidity, thereby reducing vibration and noise. However, both methods have drawbacks. Increasing the thickness of structural components significantly increases material costs. Adding reinforcing parts can affect parameters such as airflow and static pressure of the range hood and increase internal aerodynamic noise, thus affecting the noise reduction effect.

[0059] Since damping materials can convert input vibration energy into their own internal energy to reduce noise, adding counterweights can change the mode shape and reduce vibration modes, thereby reducing vibration noise. Therefore, the range hood in this application uses a noise reduction component, which includes damping components and magnetic components. The damping components convert input vibration energy into their own internal energy to reduce noise, while the magnetic components act as counterweights, changing the mode shape and reducing vibration modes to reduce vibration noise. Furthermore, the magnetic components can be attached to the range hood body, making installation convenient.

[0060] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0061] Figure 1 This is a schematic diagram of the structure of a range hood provided in an embodiment of this application.

[0062] This application provides a range hood. The range hood can be a freestanding range hood or an integrated range hood that can be integrated with a cooktop.

[0063] See Figure 1 As shown, the range hood includes the range hood body 100.

[0064] The range hood body 100 has an inner cavity. The range hood body 100 has a smoke inlet 110, which is connected to the inner cavity, and the fumes enter the inner cavity through the smoke inlet 110.

[0065] Figure 2 This is a schematic diagram of the structure of the noise reduction component in the range hood provided in the embodiment of this application.

[0066] See Figure 2 As shown, in some embodiments, the range hood includes a noise reduction component 200. The noise reduction component 200 is used to reduce the operating noise of the range hood. The noise reduction component 200 is located within the inner cavity.

[0067] In some embodiments, the number of noise reduction components 200 can be one, two or more, and this embodiment does not specifically limit the number of noise reduction components 200.

[0068] In some embodiments, the noise reduction component 200 includes a magnetic element 210. The magnetic element 210 is adsorbed onto the range hood body 100. This makes the installation of the magnetic element 210 convenient and efficient. Furthermore, it can act as a counterweight, altering the vibration mode shape and reducing vibration modes, thereby lowering vibration noise.

[0069] In some embodiments, the magnetic element 210 may be a magnet.

[0070] In some embodiments, the materials of the magnetic component 210 are classified into two categories according to their properties: metals and non-metals. The former mainly includes electrical steel, nickel-based alloys and rare earth alloys, while the latter mainly includes ferrite materials.

[0071] In some embodiments, the noise reduction component 200 includes a damping element 220. The damping element 220 can convert the input vibration energy into its own internal energy to achieve a noise reduction effect.

[0072] In some embodiments, the damping element 220 may be made of rubber or butyl rubber, which has certain heat resistance and low temperature resistance, and also has excellent energy absorption properties, which can convert vibration and impact energy into its own internal energy.

[0073] In some embodiments, the damping element 220 is connected to the magnetic element 210.

[0074] For example, the damping element 220 and the magnetic element 210 can be connected by adhesive or screws.

[0075] Understandably, the range hood in this application, by setting up a range hood body 100 and a noise reduction component 200, includes a smoke inlet 110 connected to an inner cavity. Cooking fumes enter the inner cavity through the smoke inlet 110, and the noise reduction component 200 within the inner cavity reduces the noise during operation. The noise reduction component 200 includes a damping element 220 and a magnetic element. The damping element 220 converts input vibration energy into its own internal energy, achieving a noise reduction effect. The magnetic element 210 acts as a counterweight, changing the vibration mode and reducing vibration modes, thereby reducing vibration noise. Furthermore, the magnetic element 210 can be attached to the range hood body, offering high installation convenience.

[0076] See Figure 2 As shown, in some embodiments, one end of the magnetic component 210 along the thickness direction is attracted to the range hood body 100, and the other end is connected to one end of the damping component 220 along the thickness direction. The thickness direction is the direction shown by the X-axis in the figure.

[0077] In some embodiments, the thickness of the magnetic element 210 is 1-1.5 mm.

[0078] In some embodiments, the thickness of the magnetic element 210 can be 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm.

[0079] It is understandable that when the thickness of the magnetic component 210 is less than 1 mm, the magnetic component 210 is too thin and its adsorption force is insufficient, making it prone to displacement under the wind force of the fan assembly 130.

[0080] When the thickness of the magnetic component 210 is greater than 1.5mm, it is not conducive to transmitting the vibration of the range hood body 100 to the damping component 220.

[0081] In some embodiments, the thickness of the damping element 220 is 1-20 mm.

[0082] In some embodiments, the thickness of the damping element 220 can be 1mm, 2mm, 5mm, 8mm, 10mm, 12mm, 14mm, 15mm, 16mm, 18mm or 20mm.

[0083] It is understandable that when the thickness of the damping element 220 is less than 1mm, the damping element 220 is relatively thin and the vibration reduction effect is poor.

[0084] When the thickness of the damping component 220 is greater than 20mm, the damping component 220 becomes too thick, resulting in higher cost and weight. Furthermore, as the thickness increases beyond 20mm, the improvement in vibration reduction effect of the damping component 220 becomes minimal.

[0085] Figure 3 for Figure 1 A schematic diagram of the structure of a range hood after removing part of the first housing and part of the second housing. Figure 4 for Figure 1 A schematic diagram of another structure of a range hood after removing part of the first housing and part of the second housing.

[0086] See Figure 3 and Figure 4 As shown, in some embodiments, the range hood body 100 includes a first housing 120.

[0087] The first housing 120 is provided with a first inner cavity.

[0088] In some embodiments, the range hood body 100 includes a fan assembly 130. The fan assembly 130 is used to draw kitchen fumes into a flue. The fan assembly 130 is located in a first inner cavity.

[0089] In some embodiments, the fan assembly 130 and the first housing 120 can be fixed with screws.

[0090] In some embodiments, the range hood body 100 includes a second housing 140.

[0091] The second housing 140 is connected to the first housing 120, and the second housing 140 is located at the bottom of the first housing 120.

[0092] For example, the second housing 140 and the first housing 120 can be connected by screws or rivets.

[0093] In some embodiments, the second housing 140 is provided with a second inner cavity, which communicates with the first inner cavity, and the second housing 140 is provided with a smoking port 110.

[0094] In some embodiments, the range hood body 100 includes a smoke collection assembly 150. The smoke collection assembly 150 is used to guide the fumes to the location of the fan assembly 130.

[0095] The smoke collection assembly 150 is located in the second inner cavity and has a smoke collection chamber that communicates with the first inner cavity and the smoke inlet 110. Under the action of the fan assembly 130, the fumes enter the fan assembly 130 through the smoke inlet 110, the smoke collection chamber, and the first inner cavity.

[0096] It is understandable that by setting up the smoke collection component 150 to guide the flow direction of the oil fumes, it is beneficial to exhaust the oil fumes.

[0097] In some embodiments, the range hood body 100 includes an oil filter assembly 160. The oil filter assembly 160 can filter grease from cooking fumes.

[0098] The oil mesh assembly 160 can be installed over the smoke inlet 110, and the oil mesh assembly 160 can be connected to the second housing 140 by screws.

[0099] In some embodiments, the range hood body 100 includes a smoke guide plate assembly 170. The smoke guide plate assembly 170 can guide the flow of cooking fumes, thereby improving the efficiency of fume extraction.

[0100] The smoke guide plate assembly 170 can be connected to the second housing 140 by screws.

[0101] Figure 5 This is a schematic diagram of the structure of the fan assembly and noise reduction assembly in the range hood provided in the embodiments of this application. Figure 6 for Figure 5 Another structural diagram from another angle, Figure 7 for Figure 5 Exploded view.

[0102] See Figures 5 to 7 As shown, in some embodiments, the noise reduction component 200 is disposed on the outer wall of the fan assembly 130, and the magnetic component 210 is attracted to the outer wall of the fan assembly 130.

[0103] It is understandable that when the range hood is running, the oil fume flow rate inside the fan assembly 130 is relatively high, and the vibration noise generated by the motor of the fan assembly 130 is relatively large. Setting the noise reduction component 200 on the fan assembly 130 is beneficial to reducing the noise of the range hood. Setting the noise reduction component 200 on the outer wall of the fan assembly 130 will not easily obstruct the flow of oil fumes.

[0104] Figure 8 This is a schematic diagram of the structure of the fan assembly in the range hood provided in an embodiment of this application. Figure 9 for Figure 8 A structural diagram from another angle.

[0105] See Figure 8 and Figure 9 As shown, in some embodiments, the fan assembly 130 includes a motor 131.

[0106] In some embodiments, the fan assembly 130 includes an impeller 132. The impeller 132 is connected to the output shaft of a motor 131. The motor 131 drives the impeller 132 to rotate.

[0107] In some embodiments, the fan assembly 130 includes a volute 133.

[0108] The motor 131 and impeller 132 are located in the volute 133.

[0109] In some embodiments, the volute 133 includes a central portion 1331 and an involute portion 1332 connected to each other, wherein the extending direction of the involute portion 1332 is consistent with the involute direction of the central portion 1331.

[0110] The noise reduction component 200 is disposed between the central part 1331 and the involute part 1332, and is located at the separation position of the central part 1331 and the involute part. The noise reduction component 200 is connected to the central part 1331 and the involute part 1332.

[0111] It is understandable that areas with higher gas flow rates will generate greater vibration noise. Therefore, placing the noise reduction component 200 at these locations results in better noise reduction. In this embodiment, the noise reduction component 200 is positioned between the central portion 1331 and the involute portion 1332, specifically at the separation point between them. In other words, the noise reduction component 200 is located at the tongue of the volute 133, where the gas flow rate is higher, thus resulting in better noise reduction.

[0112] In some embodiments, the volute 133 includes a first cover plate, a second cover plate, and a side plate. The first cover plate and the second cover plate are disposed opposite to each other, and the side plate is located between the first cover plate and the second cover plate. The side plate is connected to the first cover plate and also to the second cover plate.

[0113] See Figure 8 and Figure 9 As shown, in some embodiments, the volute 133 is provided with a molding cavity 1333, and the noise reduction component 200 is disposed in the molding cavity 1333.

[0114] Understandably, by setting the molding cavity 1333, the strength of the volute 133 can be improved. Moreover, the molding cavity 1333 can serve a positioning function, making it easier to determine the installation position of the noise reduction component 200 during assembly and improving installation efficiency.

[0115] In some embodiments, a molding cavity 1333 is provided on the first cover plate.

[0116] In some embodiments, a molding cavity 1333 is provided on the second cover plate.

[0117] See Figures 6 to 7 As shown, in some embodiments, the shape of the noise reduction component 200 matches the shape of the molding cavity 1333. In this way, the inner wall of the molding cavity 1333 can restrict the movement of the noise reduction component 200, which helps to ensure the accuracy of the installation position of the noise reduction component 200.

[0118] In some embodiments, the molding cavity 1333 may be a regular shape, such as a circle or a rectangle. Alternatively, the molding cavity 1333 may be an irregular shape. This embodiment does not impose specific limitations.

[0119] In some embodiments, the shapes of the damping element 220 and the magnetic element 210 are matched. In this way, the contact area between the damping element 220 and the magnetic element 210 can be larger, and more connectors or adhesives can be provided, thereby making the connection between the damping element 220 and the magnetic element 210 more reliable.

[0120] For example, both the damping element 220 and the magnetic element 210 are circular and their edges overlap. Alternatively, both the damping element 220 and the magnetic element 210 are irregular shapes and their edges overlap.

[0121] Figure 10 This is a schematic diagram of the structure of the second housing, smoke collection assembly, oil mesh assembly, and smoke guide plate assembly in the range hood provided in the embodiments of this application. Figure 11 for Figure 10 Explosion diagram, Figure 12 This is a schematic diagram of the smoke collection component and noise reduction component in the range hood provided in the embodiments of this application. Figure 13 for Figure 12 Exploded view.

[0122] See Figures 10 to 13 As shown, in some embodiments, the noise reduction component 200 is disposed on the outer wall of the smoke collection component 150, and the magnetic component 210 is attracted to the outer wall of the smoke collection component 150.

[0123] It is understandable that when the range hood is running, the oil fume flow rate inside the smoke collection component 150 is relatively high. Placing the noise reduction component 200 on the smoke collection component 150 is beneficial to reducing the noise of the range hood. Moreover, placing the noise reduction component 200 on the outer wall of the smoke collection component 150 makes it less likely to obstruct the flow of oil fumes.

[0124] See Figure 12 and Figure 13 As shown, in some embodiments, the size of the smoke collection assembly 150 decreases along its width from the bottom to the top. This facilitates the collection of oil fumes and their flow into the fan assembly 130, improving the smoke extraction effect.

[0125] In some embodiments, the noise reduction components 200 are disposed on opposite sides of the smoke collection components 150 along the width direction.

[0126] It is understandable that when oil fumes flow in the smoke collection chamber of the smoke collection assembly 150, the sidewalls on opposite sides of the smoke collection assembly 150 along the width direction have a significant guiding effect on the oil fumes, and the impact force of the oil fumes on them is also significant, resulting in greater noise at this location. Placing the noise reduction components 200 on opposite sides of the smoke collection assembly 150 along the width direction helps to improve the noise reduction effect.

[0127] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0128] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0129] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0130] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0131] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0132] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0133] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0134] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0135] In the description of this application, it should be noted that, unless otherwise expressly 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A range hood characterized by, The oil fume machine body (100) is provided with an inner cavity, and is provided with a smoke suction port (110) in communication with the inner cavity, through which oil fume enters the inner cavity. The noise reduction assembly (200) is located in the inner cavity, and comprises: A magnetic member (210) is adsorbed on the oil fume machine body (100); A damping member (220) is connected with the magnetic member (210). The oil fume machine body (100) comprises:

2. The range hood according to claim 1, characterized in that A first shell (120) is provided with a first inner cavity; A fan assembly (130) is located in the first inner cavity; A second shell (140) is connected with the first shell (120), located at the bottom of the first shell (120), provided with a second inner cavity in communication with the first inner cavity, and provided with the smoke suction port (110); A smoke collecting assembly (150) is located in the second inner cavity, provided with a smoke collecting cavity in communication with the smoke suction port (110); Under the action of the fan assembly (130), oil fume enters the fan assembly (130) through the smoke suction port (110), the smoke collecting cavity and the first inner cavity. The noise reduction assembly (200) is arranged on the outer wall of the fan assembly (130), and the magnetic member (210) is adsorbed on the outer wall of the fan assembly (130).

3. The range hood according to claim 2, wherein The noise reduction assembly (200) is arranged on the outer wall of the smoke collecting assembly (150), and the magnetic member (210) is adsorbed on the outer wall of the smoke collecting assembly (150).

4. The range hood according to claim 2, wherein The fan assembly (130) comprises a volute (133) comprising a central part (1331) and an involute part (1332) connected with each other, and the extension direction of the involute part (1332) is consistent with the involute direction of the central part (1331); 5. The range hood according to claim 3, wherein The noise reduction assembly (200) is arranged between the central part (1331) and the involute part (1332) and located at the separation position of the central part (1331) and the involute part (1332), and is connected with the central part (1331) and the involute part (1332). The volute (133) is provided with a pressing cavity (1333), and the noise reduction assembly (200) is arranged in the pressing cavity (1333).

6. The range hood according to claim 5, wherein The shape of the noise reduction assembly (200) matches the shape of the pressing cavity (1333).

7. The range hood according to claim 6, characterized in that From the bottom of the smoke collecting assembly (150) to the top of the smoke collecting assembly (150), the size of the smoke collecting assembly (150) in the width direction decreases; 8. The range hood according to claim 4, wherein ​ The noise reduction assembly (200) is arranged on opposite sides of the smoke collection assembly (150) along the width direction.

9. The range hood according to any one of claims 1 to 8, characterized in that The damping member (220) is matched in shape with the magnetic member (210).

10. The range hood according to any one of claims 1 to 8, characterized in that The thickness of the magnetic member (210) is 1-1.5 mm, and the thickness of the damping member (220) is 1-20 mm.

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