Shell of range hood supercharging device and range hood supercharging device

Abstract

The utility model belongs to the technical field of range hoods, and particularly relates to a shell of a range hood supercharging device and the range hood supercharging device. According to the shell of the range hood supercharging device, the sound insulation structure composed of the sound insulation grooves is arranged on the inner circumferential wall of the shell cavity, and the sound insulation grooves form small cyclone chambers on the inner wall of the shell cavity, so that oil smoke stays in the sound insulation grooves in the exhaust process, noise is prevented from spreading outwards, noise interference is effectively reduced, and the use effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of range hood technology, specifically relating to the housing and the range hood pressurization device. Background Technology

[0002] In modern residential design, range hoods, as essential kitchen appliances, play a crucial role in effectively exhausting cooking fumes and odors outdoors. Given that most cities use shared flue systems, optimizing range hood performance becomes particularly important, especially when faced with significant differences in flue resistance between different floors. Ground floor residents in high-rise buildings are especially constrained, as their locations often require range hoods with stronger ventilation capabilities to overcome the accumulated flue resistance from the upper floors and ensure smooth exhaust of cooking fumes.

[0003] To address this challenge, range hoods equipped with booster units have emerged on the market. These units aim to improve fume extraction efficiency by increasing airflow, ensuring that fumes are smoothly expelled under various resistance conditions. This technological improvement significantly enhances the practicality of range hoods, especially in kitchen environments such as high-rise residential buildings and low-pressure areas.

[0004] However, while booster units effectively improve the performance of range hoods, their design often overlooks another crucial issue—noise control. Most existing range hood booster units lack effective sound insulation, resulting in significant noise during high-intensity operation. This not only affects the user's cooking experience but can also disrupt the daily lives of family members, especially those sensitive to sound. The noise problem primarily stems from the high-speed rotation of the booster fan and the turbulence effect generated when airflow passes through narrow channels. These factors combine to create a significant noise pollution problem alongside improved performance. Utility Model Content

[0005] The purpose of this utility model is to overcome the problem that existing range hood booster devices lack effective sound insulation structures, resulting in significant noise, and to provide a range hood booster device housing and booster device with sound insulation function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The range hood's booster housing has an inner cavity and an air outlet and an air inlet communicating with the cavity. The inner wall of the cavity has a sound insulation structure, which includes several sound insulation grooves arranged vertically and circumferentially on the inner wall of the cavity.

[0008] Compared with the prior art, the housing of the range hood pressurization device of this utility model has a sound insulation structure composed of several sound insulation grooves on the inner peripheral wall of the housing cavity. The sound insulation grooves form small cyclone chambers on the inner wall of the housing cavity, so that the oil fumes stay in the sound insulation grooves during the emission process, and the noise is isolated from the outward transmission, effectively reducing noise interference and achieving good performance.

[0009] Furthermore, the inner circumferential wall of the shell cavity of the shell is provided with several vertically arranged guide channels, and each guide channel is connected to several vertically arranged sound insulation channels; there are guide channels in the vertical direction to collect the oil and water discharged from the sound insulation channels, so that the oil and water separated by centrifugal force can flow back to the oil cup of the range hood along the guide channels.

[0010] Furthermore, the inner periphery of the shell cavity is provided with several horizontally arranged sound-insulating protrusions along the vertical and circumferential directions. The sound-insulating grooves are formed between adjacent vertically arranged sound-insulating protrusions, and the flow-guiding grooves are formed between adjacent circumferentially arranged sound-insulating protrusions. The sound-insulating protrusions are rectangular or square. With this arrangement, the sound-insulating grooves of the sound insulation structure are formed by the space between several sound-insulating protrusions. The sound-insulating groove arrangement is simple. In addition, by setting sound-insulating protrusions on the inner periphery of the shell cavity, the friction between the airflow and the inner wall of the shell cavity can be reduced, thereby achieving the effect of noise reduction.

[0011] Furthermore, the inner sides of the air outlet and air inlet are respectively provided with brackets for connecting the fan device of the range hood booster device; the brackets include a connecting part and three support arms that are connected around the outer periphery of the connecting part, and the outer ends of the support arms are connected to the inner wall of the shell cavity; with this arrangement, the fan device of the range hood booster device is fixed in a simple way, which is convenient for product manufacturing.

[0012] Furthermore, the upper and lower sides of the housing are respectively provided with narrowing portions with gradually narrowing outer diameters, and the outer ends of the narrowing portions are provided with air vents. The air outlet and air inlet are respectively located in the corresponding air vents. This arrangement effectively improves the overall structural strength of the housing, while ensuring that the size of the air inlet matches the oil fume outlet of the range hood, and that the size of the air outlet matches the exhaust pipe.

[0013] Furthermore, the air outlet and air inlet are located at the upper and lower ends of the housing, respectively. The housing includes a first housing and a second housing that are joined together, and the first housing and the second housing are symmetrical in the vertical direction. This arrangement facilitates the molding of the housing, as well as the installation of the range hood pressurization device and the cleaning of the internal oil.

[0014] Furthermore, the lower end of the first housing has a first connecting edge on its outer periphery, and the upper end of the second housing has a second connecting edge on its outer periphery. The first and second connecting edges are respectively provided with connecting holes. The connecting holes of the first and second connecting edges are connected by screws, so that the first and second housings are assembled into one unit. With this setting, the assembly and connection method of the first and second housings is simple and convenient for product assembly and connection.

[0015] Another objective of this utility model is to provide a range hood booster device using the housing of the aforementioned range hood booster device, comprising the housing of the range hood booster device and a fan device, wherein the fan device is mounted inside the housing via a bracket of the housing; with this arrangement, by setting a sound insulation structure composed of several sound insulation grooves on the inner peripheral wall of the housing cavity, the sound insulation grooves form equivalent to small cyclone chambers on the inner wall of the housing cavity, so that the oil fumes stay in the sound insulation grooves during the emission process, isolating the noise from propagating outward, effectively reducing noise interference, and achieving good performance. Attached Figure Description

[0016] Figure 1 A schematic diagram showing the application of a booster device in a range hood.

[0017] Figure 2 This is a schematic diagram of the booster device for a range hood.

[0018] Figure 3 This is a cross-sectional view of the booster device for a range hood.

[0019] Figure 4 This is a schematic diagram of the bottom of the booster device for a range hood.

[0020] Figure 5 This is a schematic diagram of the first or second housing.

[0021] Figure 6 This is a front view of the fan unit.

[0022] Figure 7 This is a schematic diagram of a fan unit.

[0023] Figure 8 This is a top view of the fan unit.

[0024] Figure 9 This is a diagram showing the internal structure of the booster device in a range hood.

[0025] Labeling: 4. Range hood body, 41. Fume outlet, 1. Boosting device, 2. Housing, 3. Fan device, 31. Drive motor, 32. Axial distributor, 33. Impeller, 34. Housing cavity, 35. Clearance structure, 36. Bracket, 331. Air outlet, 21. Air inlet, 22. Motor shaft, 37. Guide section, 321. Clearance hole, 322. Cylinder, 38. Sound insulation structure, 23. Sound insulation groove, 231. Guide groove, 232. Sound insulation protrusion, 233. First housing, 201. Second housing, 202. First connecting edge, 203. Second connecting edge, 204. Connecting hole, 205. Exhaust pipe, 42. Housing cavity, 20. Connecting part, 361. Support arm, 362. Narrowing part, 29. Air outlet, 291. Connecting frame, 39. Ventilation hole, 391. Detailed Implementation

[0026] The specific embodiments of this utility model are described below with reference to the accompanying drawings. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0027] Example 1:

[0028] See Figures 2 to 5 The housing 2 of the range hood booster device of this utility model has a cavity 20 located on the inner side and an air outlet 21 and an air inlet 22 communicating with the cavity 20. The inner peripheral wall of the cavity 20 is provided with a sound insulation structure 23. The sound insulation structure 23 includes a plurality of sound insulation grooves 231 arranged vertically and circumferentially on the inner peripheral wall of the cavity 20.

[0029] Compared with the prior art, the housing 2 of the range hood booster device of this utility model has a sound insulation structure 23 composed of several sound insulation grooves 231 set in the inner peripheral wall of the housing cavity 20. The sound insulation grooves 231 form small cyclone chambers in the inner wall of the housing cavity 20, so that the oil fumes stay in the sound insulation grooves 231 during the emission process, and the noise is isolated from the outward transmission, effectively reducing noise interference and achieving good performance.

[0030] See Figures 2 to 5 In one embodiment, the inner peripheral wall of the cavity 20 of the housing 2 is provided with a plurality of vertically arranged guide grooves 232 along the circumferential direction, and each guide groove 232 is connected to a plurality of vertically arranged sound insulation grooves 231; a series of guide grooves 232 are provided in the vertical direction to collect oil and water discharged from the sound insulation grooves 231, so that the oil and water separated by centrifugal force can flow back to the oil cup of the range hood along the guide grooves 232.

[0031] See Figures 2 to 5In one embodiment, the inner peripheral wall of the cavity 20 is provided with a plurality of horizontally arranged sound-insulating protrusions 233 along the vertical and circumferential directions, respectively. The sound-insulating groove 231 is formed between the vertically adjacent sound-insulating protrusions 233, and the flow guide groove 232 is formed between the circumferentially adjacent sound-insulating protrusions 233. The sound-insulating protrusions 233 are rectangular or square. With this arrangement, the sound-insulating groove 231 of the sound insulation structure 23 is formed by the space between the plurality of sound-insulating protrusions 233. The arrangement of the sound-insulating groove 231 is simple. In addition, by providing sound-insulating protrusions 233 on the inner peripheral wall of the cavity 20 of the housing 2, the friction between the airflow and the inner wall of the cavity 20 can be reduced, thereby achieving the effect of noise reduction.

[0032] See Figures 2 to 5 In one embodiment, the inner sides of the air outlet 21 and the air inlet 22 are respectively provided with brackets 36 for connecting the axial fan device 3 of the range hood booster device 1; the bracket 36 includes a connecting part 361 and three support arms 362 that are connected around the outer periphery of the connecting part 361, and the outer ends of the support arms 362 are connected to the inner wall of the shell cavity 20; with this arrangement, the fan device 3 of the range hood booster device 1 is fixed in a simple way, which is convenient for product manufacturing.

[0033] See Figures 2 to 5 In one embodiment, the upper and lower sides of the housing 2 are respectively provided with narrowing portions 29 whose outer diameter gradually narrows. The outer end of the narrowing portion 29 is provided with an air vent 291. The air outlet 21 and the air inlet 22 are respectively arranged in the corresponding air vent 291. With this arrangement, the suction pressure of the air inlet 22 is effectively improved, thereby improving the range hood's ability to exhaust oil fumes. It also effectively improves the overall structural strength of the housing 2. At the same time, it allows the size of the air inlet 22 to match the oil fume outlet 41 of the range hood, and the size of the air outlet 21 to match the exhaust pipe 42.

[0034] See Figures 2 to 5 In one embodiment, the air outlet 21 and the air inlet 22 are located at the upper and lower ends of the housing 2, respectively. The housing 2 includes a first housing 201 and a second housing 202 that are assembled relative to each other. The first housing 201 and the second housing 202 are symmetrical in the vertical direction. This arrangement facilitates the molding of the housing 2, as well as the installation of the range hood pressurization device 1 and the cleaning of the internal oil.

[0035] In one embodiment, the lower end of the first housing 201 has a first connecting edge 203 on its outer periphery, and the upper end of the second housing 202 has a second connecting edge 204 on its outer periphery. The first connecting edge 203 and the second connecting edge 204 are respectively provided with connecting holes 205. The connecting holes 205 of the first connecting edge 203 and the connecting holes 205 of the second connecting edge 204 are connected by screws, so that the first housing 2 and the second housing 2 are assembled into one piece. This arrangement facilitates the molding of the housing 2, as well as the installation of the range hood pressurization device 1 and the cleaning of the internal oil.

[0036] Example 2:

[0037] See Figures 1 to 8 The main purpose of this embodiment is to provide a range hood booster device 1 with a housing 2 of the range hood booster device according to the first embodiment, including the housing 2 of the range hood booster device and a fan device 3, wherein the fan device 3 is installed in the housing 2 through a bracket 36 of the housing 2.

[0038] Compared with the prior art, the range hood pressurization device 1 of this utility model has a sound insulation structure 23 composed of several sound insulation grooves 231 set in the inner peripheral wall of the shell cavity 20. The sound insulation grooves 231 form small cyclone chambers in the inner wall of the shell cavity 20, so that the oil fumes stay in the sound insulation grooves 231 during the emission process, and the noise is isolated from the outward transmission, effectively reducing noise interference and achieving good performance.

[0039] See Figures 3 to 8 In one embodiment, the fan device 3 includes a drive motor 31, an axial splitter 32, and an impeller 33 disposed on the outer periphery of the axial splitter 32. The axial splitter 32 has an axially arranged mounting cavity 34 and a side clearance structure 35. The drive motor 31 is mounted in the mounting cavity 34 and connected to the housing 2 through the clearance structure 35. The drive motor 31 is a conventional dual-output shaft motor.

[0040] See Figures 2 to 8 In one embodiment, the avoidance structure 35 is an avoidance port arranged circumferentially on the side of the axial splitter 32. The cylinder 38 of the drive motor 31 extends out of the avoidance port through the connecting frame 39 and is fixedly connected to the housing 2. The connecting frame 39 is provided with a plurality of ventilation holes 391 along the circumferential direction. The avoidance port makes the axial splitter 32 form two split structures. With this arrangement, the avoidance structure 35 is simple to set and convenient for the production and manufacturing of the axial splitter 32.

[0041] See Figures 2 to 8In one embodiment, multiple impellers 33 are provided along the axial direction, and the blades 331 of adjacent impellers 33 are staggered relative to each other. With this arrangement, the multiple impellers 33 are staggered in sequence, which increases the airflow capture area, greatly improves the wind pressure of the exhaust fumes, and avoids backflow of fumes.

[0042] See Figures 3 to 8 In one embodiment, the impeller 33 is provided with three blades along the axial direction; the impeller 33 is provided with three blades 331 equidistantly arranged in the circumferential direction; furthermore, the blades 331 between adjacent impellers 33 are staggered by 40°, and the blades 331 between intermittent impellers 33 are staggered; with this arrangement, the three layers of blades 331 are staggered in sequence, increasing the airflow capture area, so that the wind pressure will increase sequentially through the three layers of blades 331 after the oil fumes enter the pressurization device 1, greatly increasing the wind pressure of the discharged oil fumes and preventing backflow of oil fumes.

[0043] See Figures 3 to 8 In one embodiment, the motor shaft 37 extends out of the outer side of the mounting cavity 34 through the axial splitter 32, and the position where the motor shaft 37 passes through the axial splitter 32 is fixedly connected to the axial splitter 32; the housing 2 is provided with the bracket 36 at the air outlet 21 and air inlet 22, and the ends of the motor shaft 37 on both sides of the drive motor 31 are respectively rotatably connected to the connecting part 361 of the corresponding bracket 36 through bearings; with this arrangement, the fan device 3 is effectively fixed to the housing 2, which is simple to fix and convenient for product manufacturing.

[0044] See Figures 2 to 8 In one embodiment, the axial splitter 32 extends along its length, and guide portions 321 are formed at both ends of the axial splitter 32. The guide portions 321 are conical in shape. A clearance hole 322 communicating with the mounting cavity 34 is provided in the middle of the guide portion 321. The motor shaft 37 extends out of the mounting cavity 34 through the clearance hole 322. The clearance hole 322 is located at the end of the guide portion 321. The clearance hole 322 is fixedly connected to the motor shaft 37, and the clearance hole 322 and the motor shaft 37 are sealed together. With this arrangement, the guide portion 321 can separate the oil fumes flowing into the pressurizing device 1, prevent the oil fumes from forming eddies in the middle of the pressurizing device 1, and make the airflow discharge smoother.

[0045] Example 3:

[0046] See Figures 1 to 7Another objective of this utility model is to provide a range hood using the range hood booster device 1 described in Embodiment 2, comprising a range hood body 4, an exhaust pipe 42, and the range hood booster device 1. The air inlet 22 of the housing 2 is connected to the fume outlet 41 of the range hood body 4, and the air outlet 21 of the housing 2 is connected to the exhaust pipe 42. With this arrangement, the range hood booster device 1 is installed between the fume outlet 41 of the range hood body 4 and the exhaust pipe 42, effectively overcoming the problem of high fume exhaust resistance in the range hood, thereby improving the range hood's fume extraction capacity. This is particularly effective for users on lower or higher floors who experience high fume exhaust resistance. Furthermore, arranging the impeller 33 on the outer periphery of the axial distributor 32 prevents the formation of vortices within the housing 2, allowing for smoother airflow and ensuring a large exhaust volume from the range hood booster device 1. It also provides sufficient pressure to ensure that the fan device 3 meets the performance specifications for connection with the range hood.

[0047] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. The housing of the booster unit for a range hood, characterized in that, The housing has an inner cavity and an air outlet and an air inlet that connect to the cavity. The inner peripheral wall of the cavity is provided with a sound insulation structure. The sound insulation structure includes several sound insulation grooves arranged vertically and circumferentially on the inner wall of the shell cavity.

2. The housing of the range hood booster device according to claim 1, characterized in that, The inner circumferential wall of the shell cavity is provided with several vertically arranged guide grooves, and each guide groove is connected to several vertically arranged sound insulation grooves.

3. The housing of the range hood booster device according to claim 2, characterized in that, The inner wall of the shell cavity is provided with several horizontally arranged sound-insulating protrusions along the vertical and circumferential directions. The sound-insulating grooves are formed between the vertically adjacent sound-insulating protrusions, and the flow-guiding grooves are formed between the circumferentially adjacent sound-insulating protrusions.

4. The housing of the range hood booster device according to claim 3, characterized in that, The sound-insulating protrusions are rectangular or square in shape.

5. The housing of the range hood booster device according to claim 1, characterized in that, The inner sides of the air outlet and air inlet are respectively provided with brackets for connecting the fan device of the range hood booster.

6. The housing of the range hood booster device according to claim 5, characterized in that, The support includes a connecting part and three supporting arms that are connected around the outer periphery of the connecting part, with the outer ends of the supporting arms connected to the inner wall of the shell cavity.

7. The housing of the range hood booster device according to claim 1, characterized in that, The upper and lower sides of the housing are respectively provided with narrowing portions with gradually narrowing outer diameters. The outer ends of the narrowing portions are provided with air vents, and the air outlet and air inlet are respectively located in the corresponding air vents.

8. The housing of the range hood booster device according to any one of claims 1 to 7, characterized in that, The air outlet and air inlet are located at the upper and lower ends of the housing, respectively. The housing includes a first housing and a second housing that are assembled relative to each other. The first housing and the second housing are symmetrical in the vertical direction.

9. The housing of the range hood booster device according to claim 8, characterized in that, The lower end of the first housing has a first connecting edge on its outer periphery, and the upper end of the second housing has a second connecting edge on its outer periphery. The first and second connecting edges are respectively provided with connecting holes. The connecting holes of the first and second connecting edges are connected by screws, so that the first and second housings are assembled into one unit.

10. A range hood booster device, characterized in that, The range hood booster device includes a housing and a fan assembly as described in any one of claims 1 to 9, wherein the fan assembly is mounted inside the housing via a bracket of the housing.

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