Oil guide structure, noise reduction device and range hood

Abstract

The utility model provides a guide oil structure, noise reduction device and range hood relates to kitchen equipment technical field. The guide oil structure includes the guide oil board, the guide oil board is installed in the loudspeaker assembly below in the oil smoke hood internal air duct, and the vertical projection of loudspeaker assembly on the guide oil board is located in the board surface range of guide oil board, be equipped with the oil outlet on the guide oil board, the oil outlet is located the cup mouth above of oil cup in the bottom of oil smoke hood, be equipped with the inclined plane that inclines to the oil outlet between the edge of guide oil board, the guide oil board is used for the oil drop that the surface of loudspeaker assembly drops and passes through the inclined plane and guides the oil drop to the oil outlet. The guide oil structure passes through the guide oil board and receives the grease that the surface of loudspeaker assembly drops, then passes through the inclined plane of guide oil board and guides the oil drop to the oil outlet, then falls into the oil cup through the oil outlet, can prevent the oil drop on the surface of loudspeaker assembly and drops to the cooking range or cooking food, promotes the user experience.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, and in particular to an oil guiding structure, a noise reduction device, and a range hood. Background Technology

[0002] Range hoods are essential appliances in modern kitchens, one of their core functions being the efficient separation and collection of grease produced during cooking. To reduce the noise level during operation, such as... Figure 1 As shown, an active noise reduction device including a speaker assembly 1 is installed in the internal air duct of the smoke collection hood of an existing range hood. The speaker assembly 1 is used to emit sound waves with the opposite phase and the same amplitude as the noise to cancel the noise.

[0003] However, the speaker assembly 1 protrudes from the air duct inside the smoke hood 2, and its surface is prone to oil accumulation. Furthermore, because the vertical projection of the speaker assembly 1's surface passes through the oil mesh at the air inlet 20 of the smoke hood 2, when condensed oil or grease forms on the surface of the speaker assembly 1 or flows down, the oil droplets will... Figure 1 The oil drips through the mesh and onto the stove or food being cooked, as indicated by the dashed arrow, affecting hygiene and user experience. Utility Model Content

[0004] The purpose of this utility model is to provide an oil guiding structure, a noise reduction device, and a range hood to alleviate the technical problems existing in the prior art, such as the protrusion of the speaker component in the internal air duct of the range hood smoke collection hood, the easy accumulation of oil on the surface, and the oil droplets dripping through the oil mesh at the air inlet of the smoke collection hood onto the stove or cooking food, affecting hygiene and user experience.

[0005] In a first aspect, this utility model provides an oil guiding structure, including an oil guiding plate; The oil guide plate is installed below the speaker assembly in the air duct inside the range hood's smoke collection hood, and the vertical projection of the speaker assembly on the oil guide plate is within the surface area of ​​the oil guide plate. The oil guide plate is provided with an oil outlet, which is located above the mouth of the oil cup at the bottom of the smoke hood; there is a downward inclined surface between the edge of the oil guide plate and the oil outlet, which is used to receive oil droplets dripping from the surface of the speaker assembly and guide the oil droplets to the oil outlet through the inclined surface.

[0006] In an optional embodiment, the oil guide plate is a flat plate, which is inclinedly disposed below the speaker assembly, and includes a lower mounting side and a higher free side, with the oil outlet disposed on the mounting side of the oil guide plate.

[0007] In an optional embodiment, the mounting side of the oil guide plate is connected to the back plate of the smoke hood on which the speaker assembly is mounted.

[0008] In an alternative embodiment, the free side of the oil guide plate is suspended on the side of the speaker assembly opposite the backplate.

[0009] In an optional embodiment, a fixing plate is also included. The fixing plate is connected to the oil guide plate and is attached to and fixed to the back plate of the smoke hood. The fixing plate is used to support and fix the speaker assembly.

[0010] In an optional embodiment, the fixing plate is connected to one side of the oil guide plate and forms a groove between the fixing plate and the oil guide plate, and the oil outlet is located at the bottom of the groove.

[0011] In an optional embodiment, the fixing plate has flanges that bend toward the guide oil plate on two sides near both ends of the speaker assembly.

[0012] In an optional embodiment, there are multiple oil outlets, which are spaced apart along the length of the speaker assembly.

[0013] Secondly, this utility model provides a noise reduction device, including the oil guiding structure of any of the aforementioned embodiments.

[0014] Thirdly, this utility model provides a range hood that includes the noise reduction device described in the aforementioned embodiments.

[0015] The oil guiding structure provided by this utility model includes an oil guiding plate; the oil guiding plate is installed below the speaker assembly in the internal air duct of the range hood's smoke collection hood, and the vertical projection of the speaker assembly on the oil guiding plate is within the plate surface area; the oil guiding plate has an oil outlet located above the opening of the oil cup at the bottom of the smoke collection hood; a downwardly sloping surface is provided between the edge of the oil guiding plate and the oil outlet, the oil guiding plate is used to receive oil droplets dripping from the surface of the speaker assembly and guide the oil droplets to the oil outlet through the sloping surface. The oil guiding structure provided by this utility model is applied to a range hood with a speaker assembly installed in the internal air duct of the smoke collection hood, wherein the speaker assembly is usually installed on the back plate of the smoke collection hood and is located above the air inlet of the smoke collection hood, and the bottom of the smoke collection hood usually also has an oil cup to receive oil droplets dripping from the inner wall of the smoke collection hood. When using this oil guiding structure, first install the oil guiding plate below the speaker assembly in the internal air duct of the range hood's smoke collection hood, so that the oil guiding plate is located above the opening of the oil cup at the bottom of the smoke collection hood. As the range hood is used over time, the surface of the speaker assembly gradually accumulates condensed oil or grease. Since the vertical projection of the speaker assembly onto the grease guide plate lies within the plate's surface, the condensed oil or grease on the speaker assembly's surface drips onto the guide plate below, preventing it from passing through the guide plate and dripping into the air inlet of the fume hood. Furthermore, because the edge of the guide plate has a downward-sloping surface between it and the oil outlet, the oil droplets falling onto the guide plate flow along the slope towards the oil outlet and then fall into the oil cup. This process effectively collects the oil droplets from the speaker assembly's surface, preventing them from directly passing through the grease filter at the fume hood's air inlet and dripping onto the stovetop or food, thus ensuring food safety and improving the user experience.

[0016] Compared with the prior art, the oil guiding structure provided by this utility model collects the grease dripping from the surface of the speaker assembly through the oil guiding plate, and then guides the oil droplets to the oil outlet through the inclined surface of the oil guiding plate, and then drops into the oil cup through the oil outlet. This can prevent the oil droplets on the surface of the speaker assembly from dripping onto the stove or cooking food, thus improving the user experience.

[0017] The noise reduction device provided by this utility model includes the above-mentioned oil guiding structure, and therefore the noise reduction device has the same beneficial effect as the above-mentioned oil guiding structure.

[0018] The range hood provided by this utility model includes the above-mentioned noise reduction device, and therefore the range hood has the same beneficial effect as the above-mentioned noise reduction device. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A side perspective view of a range hood with speaker assemblies installed in the internal air duct of an existing smoke collection hood; Figure 2 This is a schematic diagram of the oil guiding structure provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the oil guiding structure and speaker assembly provided in an embodiment of the present utility model; Figure 4 Exploded view of the oil guiding structure and speaker assembly provided in the embodiment of this utility model; Figure 5 Another exploded view of the oil guiding structure and speaker assembly provided in this embodiment of the utility model; Figure 6 A schematic diagram of the structure of a range hood including an oil guiding structure and a speaker assembly is provided for an embodiment of this utility model; Figure 7 A side perspective view of a range hood including an oil guiding structure and a speaker assembly, provided for an embodiment of this utility model.

[0021] Icons: 1-Speaker assembly; 2-Smoke hood; 20-Air inlet; 21-Oil cup; 22-Back panel; 3-Oil guide plate; 30-Oil outlet; 4-Fixing plate; 40-Flanged edge. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] Example: like Figures 2-7 As shown, the oil guiding structure provided in this embodiment includes an oil guiding plate 3; the oil guiding plate 3 is installed below the speaker assembly 1 in the internal air duct of the range hood smoke collection hood 2, and the vertical projection of the speaker assembly 1 on the oil guiding plate 3 is located within the plate surface area of ​​the oil guiding plate 3; the oil guiding plate 3 is provided with an oil outlet 30, which is located above the cup opening of the oil cup 21 at the bottom of the smoke collection hood 2; the edge of the oil guiding plate 3 is provided with a downward inclined surface between the oil outlet 30 and the edge of the oil guiding plate 3, and the oil guiding plate 3 is used to receive the oil droplets dripping from the surface of the speaker assembly 1 and guide the oil droplets to the oil outlet 30 through the inclined surface.

[0026] The oil guiding structure provided in this embodiment is applied to a range hood in which a speaker assembly 1 is installed in the internal air duct of a smoke collection hood 2. Figure 1 and Figure 7 As shown, the speaker assembly 1 is usually mounted on the back plate 22 of the smoke hood 2 and the speaker assembly 1 is located above the air inlet 20 of the smoke hood 2. The bottom of the smoke hood 2 is usually provided with an oil cup 21 to receive oil droplets dripping from the inner wall of the smoke hood 2.

[0027] When using this oil guiding structure, such as Figure 6 and Figure 7 As shown, the oil guide plate 3 is first installed below the speaker assembly 1 in the internal air duct of the range hood hood 2, with the oil guide plate 3 positioned above the rim of the oil cup 21 at the bottom of the range hood 2. As the range hood is used for an extended period, condensed oil or grease gradually adheres to the surface of the speaker assembly 1. Since the vertical projection of the speaker assembly 1 onto the oil guide plate 3 lies within the surface area of ​​the oil guide plate 3, the condensed oil or grease on the surface of the speaker assembly 1 will drip onto the oil guide plate 3 below it, instead of passing through the oil guide plate 3 and dripping into the air inlet 20 of the range hood 2. The trajectory of the oil droplets on the surface of the speaker assembly 1 is shown below. Figure 7 The solid arrow in the image indicates the direction. Furthermore, because the edge of the oil guide plate 3 has a downward-sloping surface between it and the oil outlet 30, the oil droplets falling onto the oil guide plate 3 will flow along the slope towards the oil outlet 30, and then fall into the oil cup 21 through the oil outlet 30. This achieves the collection of oil droplets on the surface of the speaker assembly 1, effectively preventing oil droplets on the surface of the speaker assembly 1 from directly passing through the oil mesh at the air inlet 20 of the fume hood 2 and dripping onto the stove or cooking food.

[0028] Compared with the prior art, the oil guiding structure provided in this embodiment receives the grease dripping from the surface of the speaker assembly 1 through the oil guiding plate 3, and then guides the oil droplets to the oil outlet 30 through the inclined surface of the oil guiding plate 3, and then drops into the oil cup 21 through the oil outlet 30. This can prevent the oil droplets on the surface of the speaker assembly 1 from dripping onto the stove or cooking food, thus improving the user experience.

[0029] In practical applications, the surface of the oil guide plate 3 can be a curved plate or a bent plate structure.

[0030] Or, such as Figures 2-5 As shown, the oil guide plate 3 is a flat plate. The oil guide plate 3 is inclinedly disposed below the speaker assembly 1. The oil guide plate 3 includes a lower mounting side and a higher free side. The mounting side of the oil guide plate 3 is provided with an oil outlet 30.

[0031] When the oil guide plate 3 is a flat plate, it can improve the flow efficiency of oil droplets on its plate surface, thereby improving the oil guiding effect. At this time, there are no corners on the oil guide plate 3, so it will not cause turbulence to the oil fume airflow in the internal air duct of the fume hood 2.

[0032] It should be noted that, as Figure 1 As shown, the speaker assembly 1 in existing range hoods also obstructs airflow and creates turbulence within the air duct of the smoke collection hood 2. Specifically, Figure 1 The solid arrows shown represent the airflow trajectory. When the airflow enters the internal air duct of the smoke hood 2 through the air inlet 20, it will collide with the back plate 22 of the smoke hood 2 and the horizontal end face of the lower part of the speaker assembly 1 and bounce back to form turbulence, which not only increases aerodynamic noise but also reduces air intake efficiency.

[0033] In this embodiment, the mounting side of the oil guide plate 3 is connected to the back plate 22 of the smoke hood 2 on which the speaker assembly 1 is mounted. Figure 7 As shown, the speaker assembly 1 is usually mounted on the back plate 22 of the smoke hood 2. By connecting the mounting side of the oil guide plate 3 to the back plate 22 of the smoke hood 2, the oil guide plate 3 can be tilted upward from the side closest to the back plate 22 to the other side below the speaker assembly 1. At this time, the oil guide plate 3 can not only guide the oil droplets, but also guide the oil fume airflow entering the internal air duct of the smoke hood 2.

[0034] Specifically, the oil guide plate 3 can block the horizontal end face of the lower part of the speaker assembly 1. When the range hood draws the oil fumes from the air inlet 20 of the fume hood 2 through the oil mesh into the internal air duct of the fume hood 2, the airflow will reach the inclined oil guide plate 3, and then flow along the surface of the oil guide plate 3 to the top of the air duct, and then be discharged. Figure 7 The trajectory shown by the solid arrow is the movement trajectory of the oil fume airflow inside the range hood equipped with an oil guiding structure.

[0035] It can be seen that by connecting the mounting side of the oil guide plate 3 to the back plate 22 of the smoke hood 2 in this embodiment, the oil guide plate 3 can also have the function of airflow guidance, so as to avoid the oil fume airflow from entering the air duct and causing turbulence due to impacting the horizontal end face of the lower part of the speaker assembly 1, thereby effectively reducing aerodynamic noise and increasing air intake efficiency.

[0036] It should be noted that when the mounting side of the oil guide plate 3 is connected to the back plate 22 of the smoke hood 2, the oil outlet 30 can be a gap reserved between the oil guide plate 3 and the back plate 22 of the smoke hood 2, or the oil guide plate 3 and the back plate 22 of the smoke hood 2 abut against each other, in which case the oil outlet 30 is a notch opened on the side of the oil guide plate 3.

[0037] It should also be noted that, since the oil guide plate 3 in this embodiment has an oil outlet 30 on its mounting side, when the mounting side of the oil guide plate 3 is connected to the back plate 22 of the smoke hood 2, the oil droplets dripping from the oil outlet 30 can also flow along the back plate 22 of the smoke hood 2 to the oil cup 21. At this time, the back plate 22 of the smoke hood 2 can be used to guide the oil droplets, so that the oil droplets can flow smoothly and accurately to the oil cup 21.

[0038] Furthermore, the free side of the oil guide plate 3 is suspended on the side of the speaker assembly 1 facing away from the back plate 22. This arrangement not only allows oil droplets from the side of the speaker assembly 1 facing away from the back plate 22 to easily drip onto the oil guide plate 3, but also increases the shielding area of ​​the oil guide plate 3 on the speaker assembly 1, further effectively preventing the oil fume airflow from contacting the speaker assembly 1 and causing turbulence.

[0039] In this embodiment, the oil guide plate 3 can be fixedly connected to the back plate 22 of the smoke hood 2 by fasteners such as screws, welding, or snap-fit.

[0040] Or, such as Figures 2-5 As shown, the oil guiding structure provided in this embodiment also includes a fixing plate 4, which is connected to the oil guiding plate 3 and is attached to and fixed on the back plate 22 of the smoke hood 2. The fixing plate 4 is used to support and fix the speaker assembly 1.

[0041] At this point, the fixing plate 4 not only supports and fixes the speaker assembly 1, but also achieves a fixed connection between the oil guide plate 3 and the back plate 22 of the fume hood 2, thereby improving the installation stability of the oil guide plate 3. When assembling the speaker assembly 1 and the oil guide structure inside the range hood, it is only necessary to first fix the speaker assembly 1 to the fixing plate 4, and then fix the fixing plate 4 to the back plate 22 of the fume hood 2, which effectively improves the ease of assembly of the speaker assembly 1 and the oil guide structure.

[0042] The fixing plate 4 can be fixedly connected to the back plate 22 of the smoke hood 2 by fasteners such as screws, and the speaker assembly 1 can also be fixed to the fixing plate 4 by fasteners such as screws.

[0043] like Figure 4 and Figure 5 As shown, the fixing plate 4 is connected to one side of the oil guide plate 3 and forms a groove between them, and the oil outlet 30 is located at the bottom of the groove.

[0044] By placing the oil outlet 30 at the bottom of the groove, the area of ​​the oil outlet 30 can be increased by utilizing the bottom of the groove, thereby improving the oil output effect.

[0045] The fixed plate 4 and the oil guide plate 3 can be smoothly connected. At this time, the fixed plate 4 and the oil guide plate 3 can be formed by stamping and bending on a flat plate.

[0046] like Figure 2 and Figure 3 As shown, the fixing plate 4 has flanges 40 that bend toward the guide oil plate 3 on two sides near both ends of the speaker assembly 1.

[0047] The flange 40 can guide the installation position of the speaker assembly 1 on the mounting plate 4, which is conducive to accurately assembling the speaker assembly 1 on the mounting plate 4 and preventing the speaker assembly 1 from being misaligned, which would prevent the oil droplets on its surface from dripping onto the oil guide plate 3.

[0048] like Figure 5 As shown, there are multiple oil outlets 30, which are distributed at intervals along the length of the speaker assembly 1.

[0049] Multiple oil outlets 30 can improve the efficiency of oil droplet falling on the oil guide plate 3, thereby improving the oil droplet collection effect and preventing oil droplets from accumulating on the oil guide plate 3.

[0050] This embodiment also provides a noise reduction device, which includes the aforementioned oil guiding structure. The noise reduction device may further include a speaker assembly 1, which is directly connected to the oil guiding plate 3 or connected via a fixing plate 4. Since the noise reduction device provided in this embodiment includes the aforementioned oil guiding structure, it solves the same technical problem and achieves the same technical effect as the aforementioned oil guiding structure, and will not be described in detail here.

[0051] This embodiment also provides a range hood that includes the aforementioned noise reduction device. Therefore, the range hood and the aforementioned noise reduction device can solve the same technical problem and achieve the same technical effect, which will not be described in detail here.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 utility model.

Claims

1. An oil-guiding structure, characterized in that, Including the oil guide plate (3); The oil guide plate (3) is installed below the speaker assembly (1) in the internal air duct of the range hood smoke collection hood (2), and the vertical projection of the speaker assembly (1) on the oil guide plate (3) is located within the plate surface of the oil guide plate (3); The oil guide plate (3) is provided with an oil outlet (30), which is located above the mouth of the oil cup (21) at the bottom of the smoke hood (2); the edge of the oil guide plate (3) and the oil outlet (30) are provided with a downward inclined surface, and the oil guide plate (3) is used to receive the oil droplets dripping from the surface of the speaker assembly (1) and guide the oil droplets to the oil outlet (30) through the inclined surface.

2. The oil guiding structure according to claim 1, characterized in that, The oil guide plate (3) is a flat plate. The oil guide plate (3) is inclinedly disposed below the speaker assembly (1). The oil guide plate (3) includes a lower mounting side and a higher free side. The oil outlet (30) is disposed on the mounting side of the oil guide plate (3).

3. The oil guiding structure according to claim 2, characterized in that, The mounting side of the oil guide plate (3) is connected to the back plate (22) of the smoke hood (2) on which the speaker assembly (1) is mounted.

4. The oil guiding structure according to claim 3, characterized in that, The free side of the oil guide plate (3) is suspended on the side of the speaker assembly (1) opposite to the back plate (22).

5. The oil guiding structure according to any one of claims 1-4, characterized in that, It also includes a fixing plate (4), which is connected to the oil guide plate (3) and is attached to and fixed on the back plate (22) of the smoke hood (2). The fixing plate (4) is used to support and fix the speaker assembly (1).

6. The oil guiding structure according to claim 5, characterized in that, The fixing plate (4) is connected to one side of the oil guide plate (3) and forms a groove between them. The oil outlet (30) is located at the bottom of the groove.

7. The oil guiding structure according to claim 5, characterized in that, The fixing plate (4) has flanges (40) that bend toward the oil guide plate (3) on two sides near the two ends of the speaker assembly (1).

8. The oil guiding structure according to any one of claims 1-4, characterized in that, There are multiple oil outlets (30), and the multiple oil outlets (30) are distributed at intervals along the length direction of the speaker assembly (1).

9. A noise reduction device, characterized in that, Includes the oil guiding structure as described in any one of claims 1-8.

10. A range hood, characterized in that, Includes the noise reduction device as described in claim 9.

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