Fan device of supercharging device and range hood supercharging device
By using a booster fan unit, multiple axial airflows are generated through an axial splitter and a conical guide section, which solves the problem of high exhaust resistance in shared flues for range hoods, improves the exhaust capacity of range hoods, and reduces noise interference.
Patent Information
- Application Number
- CN202520538245.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing range hoods suffer from high resistance in shared flues, making it difficult to effectively remove cooking fumes, especially in high-rise and low-rise residential environments.
Design a booster fan device, including a drive motor, an axial splitter and an impeller, to form multiple axial airflows through the axial splitter and conical guide section, thereby avoiding vortex formation and enhancing the fume emission capacity.
It effectively overcomes the resistance of range hood smoke emission, increases air volume and air pressure, performs particularly well in high-rise or low-rise environments, and reduces noise interference.
Smart Images
Figure CN223806307U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of range hood, concretely relates to fan device of pressure increasing device and range hood pressure increasing device. BACKGROUND
[0002] Because range hood usually passes through long public flue to discharge oil fume to the atmosphere, this needs to overcome huge flue resistance to discharge oil fume from the flue, but the performance of the range hood is unified when designing, but the demand of different floors to the performance of range hood is different, and most cities in China use public flue to discharge oil fume, so the range hood with single performance cannot satisfy the use of different floor environment at the same time, especially for the user of bottom floor of high-level public flue, under the condition that the oil fume discharge of range hood faces big resistance, oil fume is difficult to be discharged. CONTENT OF UTILITY MODEL
[0003] The utility model provides a kind of fan device of pressure increasing device and range hood pressure increasing device for overcoming the problem that the oil fume of existing range hood using public flue is difficult to be discharged due to big oil fume discharge resistance.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] The fan device of pressure increasing device includes driving motor, axial flow divider extending along the length direction and impeller arranged on the outer periphery of axial flow divider, the axial flow divider is provided with arranging cavity arranged along the axial direction and avoiding structure located at the side portion, the driving motor is arranged in the arranging cavity and fixed by avoiding structure, the motor shaft of driving motor is in transmission connection with axial flow divider, the both ends of axial flow divider form flow guide portion, and the flow guide portion is conical shape.
[0006] Compared with prior art, the fan device of pressure increasing device of the utility model is applied and installed in the shell of pressure increasing device, the pressure increasing device is used to be installed between oil fume outlet of range hood body and smoke exhaust pipe, which can effectively overcome the problem of big oil fume discharge resistance of range hood, thereby improving the oil fume discharge capacity of range hood, especially for the user of bottom floor or high-level oil fume discharge resistance, the effect is particularly obvious. The impeller is arranged on the outer periphery of axial flow divider, the axial flow divider is arranged along the length direction, and the both ends of axial flow divider are respectively provided with conical-shaped flow guide portion, so that the oil fume flow entering the pressure increasing device forms multiple axial flow under the flow dividing effect of axial flow divider flow guide portion, avoiding vortex of oil fume flow in the shell of pressure increasing device, making the discharge of oil fume flow more smooth. It guarantees that the range hood pressure increasing device has large air volume, and provides sufficient pressure, to ensure that the fan device meets the performance index of series connection with range hood.
[0007] Further, the impellers are provided in multiple along the axial direction, and the blades of adjacent impellers are arranged in opposite staggered manner; by such arrangement, the multiple impellers are staggered in sequence, the airflow capturing area is increased, the air pressure for discharging the oil fume is greatly improved, and the oil fume backflow is avoided.
[0008] Further, the impellers are provided in three along the axial direction; the impellers are arranged with three blades in equidistance along the circumference; the blades between adjacent impellers are staggered by 40° in opposite manner, and the blades between the spaced impellers are staggered in opposite manner; by such arrangement, the three layers of blades are staggered in sequence, the airflow capturing area is increased, the air pressure for discharging the oil fume is greatly improved, and the oil fume backflow is avoided.
[0009] Further, the motor shafts of the driving motors extend in opposite directions at two sides and are in transmission connection with the axial flow divider, the motor shafts extend out of the accommodation cavity through the axial flow divider, and the positions of the motor shafts extending through the axial flow divider are in fixed connection with the axial flow divider; by such arrangement, the transmission connection mode of the motor shafts and the axial flow divider is simple, and the production and manufacturing are facilitated.
[0010] Further, the guide part is provided with an avoiding hole in communication with the accommodation cavity, the motor shaft extends out of the accommodation cavity through the avoiding hole, and the avoiding hole is located at the end of the guide part; the avoiding hole is in fixed connection with the motor shaft, and the avoiding hole is in sealing cooperation with the motor shaft; by such arrangement, the connection mode of the motor shaft and the axial flow divider is simple, and the fixing effect is good.
[0011] Further, the avoiding structure is an avoiding opening arranged along the circumference at the side of the axial flow divider, and the cylinder body of the driving motor extends out of the avoiding opening through the connecting frame for accommodation and fixation; by such arrangement, the avoiding structure is arranged in simple mode, and the cylinder body of the driving motor is in good connection and fixation effect with the shell of the supercharging device.
[0012] The oil fume extractor supercharging device comprises a shell and the fan device of the supercharging device, the shell is provided with air outlets and air inlets at two ends, the fan device of the supercharging device is accommodated in the shell, the connecting frame is arranged in the shell, the driving motor of the fan device of the supercharging device extends out of the avoiding structure through the connecting frame and is connected with the shell, and the connecting frame is provided with a hollow structure; by such arrangement, the axial flow divider is arranged in extension along the length direction, and the guide parts in the shape of cone are arranged at two ends of the axial flow divider, so that the oil fume airflow entering the supercharging device forms multiple axial flow airflows under the flow dividing effect of the guide parts of the axial flow divider, the oil fume airflow is prevented from forming vortex in the shell of the supercharging device, the oil fume airflow is discharged more smoothly, the vortex of the oil fume airflow in the shell of the supercharging device is effectively avoided, the problem of generating large noise is solved, the mute effect is good, and the user experience is good. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 Schematic view of the oil fume machine supercharging device applied to the oil fume machine.
[0014] Figure 2 Schematic view of the oil fume machine supercharging device.
[0015] Figure 3 Cross-sectional view of the oil fume machine supercharging device.
[0016] Figure 4 Bottom view of the oil fume machine supercharging device.
[0017] Figure 5 Schematic view of the first shell or the second shell.
[0018] Figure 6 Front view of the fan device of the supercharging device.
[0019] Figure 7 Schematic view of the fan device of the supercharging device.
[0020] Figure 8 Top view of the fan device of the supercharging device.
[0021] Figure 9 Internal structure view of the oil fume machine supercharging device.
[0022] Explanation of reference numerals: oil fume machine body 4, oil fume outlet 41, oil fume machine supercharging device 1, shell 2, fan device 3 of the supercharging device, driving motor 31, axial flow divider 32, impeller 33, accommodation cavity 34, avoidance structure 35, support 36, blade 331, air outlet 21, air inlet 22, motor shaft 37, flow guide part 321, avoidance hole 322, cylinder body 38, sound insulation structure 23, sound insulation groove 231, flow guide groove 232, sound insulation convex strip 233, first shell 201, second shell 202, first connecting edge 203, second connecting edge 204, connecting hole 205, smoke exhaust pipe 42, shell cavity 20, connecting part 361, supporting arm 362, narrowing part 29, air outlet part 291, connecting frame 39, ventilation hole 391. DETAILED DESCRIPTION
[0023] The specific embodiments of the present application will be described below with reference to the accompanying drawings. In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0024] Example one:
[0025] See Figures 1 to 9 The utility model discloses an oil fume exhaust fan pressure increasing device 1 for connecting the oil fume outlet 41 of oil fume exhaust fan body 4, including casing 2 and the fan device 3 of pressure increasing device, casing 2 is equipped with the air outlet 21 and the air inlet 22 at both ends, the fan device 3 of pressure increasing device is placed in casing 2, including drive motor 31, the axial flow divider 32 of length direction arrangement and the impeller 33 of setting at the outer periphery of axial flow divider 32, the axial flow divider 32 is equipped with the placement cavity 34 of the arrangement along the axis and the avoidance structure 35 at the side, drive motor 31 is placed in placement cavity 34 and is fixedly connected with casing 2 through the extension of the connecting frame 39 of avoidance structure 35, the motor shaft 37 of drive motor 31 is transmission connection with axial flow divider 32, the connecting frame 39 is equipped with a plurality of ventilation holes 391 along the circumference, the both ends of axial flow divider 32 form the flow guide part 321, the flow guide part 321 is conical shape.
[0026] Compared with the prior art, the fan device 3 of the pressure increasing device of the utility model is applied and installed in the casing 2 of the oil fume exhaust fan pressure increasing device 1, the oil fume exhaust fan pressure increasing device 1 is used to be installed between the oil fume outlet 41 of the oil fume exhaust fan body 4 and the smoke exhaust pipe 42, and the problem of large oil fume exhaust resistance of the oil fume exhaust fan can be effectively overcome, so that the oil fume exhaust capacity of the oil fume exhaust fan is improved, and the effect is particularly obvious for users with large oil fume exhaust resistance at the bottom or high floor. The impeller 33 is arranged at the outer periphery of the axial flow divider 32, the axial flow divider 32 is arranged along the length direction, and the both ends of the axial flow divider 32 are respectively provided with the conical flow guide part 321, so that the oil fume gas flow entering the oil fume exhaust fan pressure increasing device 1 forms a plurality of axial flow gas flows under the flow guide effect of the flow guide part 321 of the axial flow divider 32, the vortex of the oil fume gas flow in the casing 2 of the oil fume exhaust fan pressure increasing device 1 is avoided, and the oil fume gas flow is discharged more smoothly. The large exhaust capacity of the oil fume exhaust fan pressure increasing device 1 is ensured, sufficient pressure is provided, and the fan device 3 of the pressure increasing device meets the performance index of the oil fume exhaust fan in series.
[0027] See Figures 2 to 8 In one embodiment, the avoidance structure 35 is an avoidance opening arranged along the circumference at the side of the axial flow divider 32, the cylinder body 38 of the drive motor 31 is fixedly connected with the casing 2 through the extension of the connecting frame 39 of the avoidance opening, and the axial flow divider 32 forms two split structures through the avoidance opening. Through the arrangement, the avoidance structure 35 is simple in setting mode, and the production and manufacturing of the axial flow divider 32 are facilitated.
[0028] See Figures 2 to 5In an embodiment, the casing 2 is provided with narrowing portions 29 on both upper and lower sides, which gradually narrow in diameter. The narrowing portions 29 are provided with air outlet portions 291. The air outlet 21 and the air inlet 22 are arranged in the corresponding air outlet portions 291, and the inner diameter of the air outlet portions 291 is smaller than the inner diameter of the middle portion of the casing 2. In this way, the air suction pressure of the air inlet 22 is effectively improved, the oil fume exhaust capacity of the range hood is improved, the overall structural strength of the casing 2 is effectively improved, the size of the air inlet 22 can be matched with the oil fume outlet 41 of the range hood, and the size of the air outlet 21 can be matched with the exhaust pipe 42.
[0029] Referring to Figure 3 , Figures 6 to 8 In an embodiment, the driving motor 31 is an existing double-output shaft motor. The motor shafts 37 on both sides of the driving motor 31 extend in opposite directions and are drivingly connected with the axial flow divider 32. The motor shafts 37 extend out of the accommodation cavity 34 through the axial flow divider 32, and the positions where the motor shafts 37 pass through the axial flow divider 32 are fixedly connected with the axial flow divider 32. The casing 2 is provided with supports 36 at the positions of the air outlet 21 and the air inlet 22. The ends of the motor shafts 37 on both sides of the driving motor 31 are rotatably connected with the corresponding supports 36 through bearings. In this way, the fan device 3 of the supercharging device is effectively fixed in the casing 2, and the fixing is simple and convenient for product production and manufacturing.
[0030] Referring to Figures 2 to 8 In an embodiment, the middle portion of the flow guide portion 321 is provided with an avoidance hole 322 which communicates with the accommodation cavity 34. The motor shaft 37 extends out of the accommodation cavity 34 through the avoidance hole 322, and the avoidance hole 322 is located at the end of the flow guide portion 321. The avoidance hole 322 is fixedly connected with the motor shaft 37, and the avoidance hole 322 is sealingly matched with the motor shaft 37. In this way, the flow guide portion 321 can separate the oil fume flowing into the range hood supercharging device 1, avoid vortex of the oil fume at the middle position of the range hood supercharging device 1, and make the air flow discharge smoother.
[0031] Referring to Figures 2 to 8 In an embodiment, a plurality of impellers 33 are arranged in the axial direction, and the blades 331 of adjacent impellers 33 are arranged in opposite staggered manner. In this way, the plurality of impellers 33 are staggered, the air flow capturing area is increased, the air pressure for discharging oil fume is greatly improved, and backflow of the oil fume is avoided.
[0032] Referring to Figures 3 to 8In an embodiment, the impeller 33 is provided with three in the axial direction; the impeller 33 is circumferentially equidistantly arranged with three blades 331; further, the blades 331 between adjacent impellers 33 are relatively staggered by 40°, and the blades 331 between the spaced impellers 33 are relatively staggered; by such arrangement, the three layers of blades 331 are staggered in sequence, increasing the airflow capture area, so that the wind pressure of the oil fume will be sequentially increased by the three layers of blades 331 after the oil fume enters the range hood booster 1, greatly improving the wind pressure of the discharged oil fume, and avoiding the backflow of the oil fume.
[0033] Referring to Figures 2 to 7 In an embodiment, the inner wall of the shell cavity 20 of the shell 2 is provided with a sound insulation structure 23; the sound insulation structure 23 includes a plurality of sound insulation grooves 231 arranged in the vertical and circumferential directions on the inner wall of the shell cavity 20; by such arrangement, the sound insulation grooves 231 form a plurality of small cyclone chambers on the inner wall of the shell cavity 20 of the shell 2, so that the oil fume stays in the sound insulation grooves 231 during the oil fume discharge process, and the noise is isolated from spreading outward, effectively reducing the noise interference and having good use effect.
[0034] Referring to Figures 3 to 7 In an embodiment, the inner wall of the shell cavity 20 of the shell 2 is provided with a plurality of vertically arranged flow guide grooves 232 in the circumferential direction, and each of the flow guide grooves 232 communicates with a plurality of vertically arranged sound insulation grooves 231; a plurality of flow guide grooves 232 are arranged in the vertical direction to collect the oil and water discharged from the sound insulation grooves 231, so that the oil and water separated by centrifugal force flow back to the oil cup of the range hood along the flow guide grooves 232.
[0035] Referring to Figures 3 to 7 In an embodiment, the inner wall of the shell cavity 20 of the shell 2 is provided with a plurality of horizontally arranged sound insulation ribs 233 in the vertical and circumferential directions, respectively, the sound insulation grooves 231 are formed between the vertically adjacent sound insulation ribs 233, the flow guide grooves 232 are formed between the circumferentially adjacent sound insulation ribs 233, and the sound insulation ribs 233 are rectangular or square; by such arrangement, the sound insulation grooves 231 of the sound insulation structure 23 are formed by the space between the sound insulation ribs 233, the sound insulation grooves 231 are simple in arrangement, and in addition, by arranging the sound insulation ribs 233 on the inner wall of the shell cavity 20 of the shell 2, the friction between the airflow and the inner wall of the shell cavity 20 can be reduced, thereby achieving the effect of noise reduction.
[0036] Referring to Figures 3 to 7In an embodiment, the shell 2 comprises a first shell 201 and a second shell 202 which are relatively split and symmetrical to each other in the vertical direction, the first shell 201 is provided with a first connecting edge 203 at the outer periphery of the lower end of the splicing interface, the second shell 202 is provided with a second connecting edge 204 at the outer periphery of the upper end of the splicing interface, the first connecting edge 203 and the second connecting edge 204 are respectively provided with connecting holes 205, and 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 shell 201 and the second shell 202 are assembled into an integrated body; by such arrangement, the mold forming of the shell 2 is facilitated, and the installation of the range hood supercharging device 1 and the internal oil cleaning are facilitated.
[0037] Referring to Figures 3 to 7 In an embodiment, the bracket 36 comprises a connecting portion 361 and three supporting arms 362 which are connected around the outer periphery of the connecting portion 361, the motor shaft 37 is connected to the connecting portion 361, and the outer ends of the supporting arms 362 are connected to the inner wall of the shell cavity 20.
[0038] Embodiment two:
[0039] Referring to Figures 1 to 8 The main purpose of the embodiment is to provide a range hood applying the range hood supercharging device 1 of embodiment one, which comprises a range hood body 4, a smoke exhaust pipe 42 and the range hood supercharging device 1, the air inlet 22 of the shell 2 is communicated with the oil fume outlet 41 of the range hood body 4, and the air outlet 21 of the shell 2 is communicated with the smoke exhaust pipe 42.
[0040] Compared with the prior art, the range hood, the range hood supercharging device 1 is used for being installed between the oil fume outlet 41 of the range hood body 4 and the smoke exhaust pipe 42, which can effectively overcome the problem of large oil fume discharge resistance of the range hood, thereby improving the oil fume discharge capacity of the range hood, and the effect is particularly obvious for users with large oil fume discharge resistance at the bottom or high floor. The impeller 33 is arranged at the outer periphery of the axial flow divider 32, the axial flow divider 32 is arranged in the length direction, and the two ends of the axial flow divider 32 are respectively provided with tapered flow guiding portions 321, so that the oil fume gas flow entering the range hood supercharging device 1 forms a plurality of axial flow gas flows under the flow dividing effect of the flow guiding portions 321 of the axial flow divider 32, the vortex of the oil fume gas flow in the shell 2 of the range hood supercharging device 1 is avoided, and the oil fume gas flow is discharged more smoothly. The range hood supercharging device 1 has large air discharge capacity and provides sufficient pressure, and the fan device 3 of the supercharging device meets the performance index of being connected in series with the range hood.
[0041] According to the disclosure and teaching of the above description, the skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.
Claims
1. A blower arrangement of a supercharging device, characterized in that The application relates to a fan device comprising a driving motor, an axial flow divider and an impeller arranged at the periphery of the axial flow divider, wherein a mounting cavity arranged in the axial direction and an avoiding structure arranged at the side are arranged in the axial flow divider, the driving motor is arranged in the mounting cavity and is fixed by the avoiding structure, the motor shaft of the driving motor is in transmission connection with the axial flow divider, the axial flow divider is provided with a flow guide part at both ends, and the flow guide part is in a conical shape.
2. The supercharging device blower device according to claim 1, characterized by The impellers are arranged in the axial direction.
3. The supercharging device blower device according to claim 1, characterized by The impellers are arranged in the axial direction.
4. The supercharging device blower device according to claim 2 or 3, characterized by The impeller is arranged with three blades in the circumferential direction.
5. The supercharging device blower device according to claim 4, characterized by The blades of the adjacent impellers are arranged in a staggered manner.
6. The supercharging device blower device according to claim 1, characterized by The blades of the adjacent impellers are staggered by 40 degrees.
7. The supercharging device blower device according to claim 6, characterized by The motor shafts of the driving motor extend in opposite directions and are in transmission connection with the axial flow divider, the motor shafts extend out of the mounting cavity through the axial flow divider, and the positions of the motor shafts extending through the axial flow divider are fixedly connected with the axial flow divider.
8. The supercharging device blower device according to claim 1, characterized by The avoiding hole is arranged in the middle of the flow guide part and is in communication with the mounting cavity, the motor shaft extends out of the mounting cavity through the avoiding hole, the avoiding hole is arranged at the end of the flow guide part, the avoiding hole is fixedly connected with the motor shaft, and the avoiding hole is in sealing connection with the motor shaft.
9. A booster device for a range hood, characterized in that The avoiding structure is an avoiding hole arranged in the circumferential direction at the side of the axial flow divider, and the cylinder body of the driving motor extends out of the avoiding hole through the connecting frame and is arranged and fixed. The application relates to a fan device comprising a shell and the supercharging device of any one of claims 1 to 8, wherein the fan device of the supercharging device is arranged in the shell, a connecting frame is arranged in the shell, the driving motor of the fan device of the supercharging device extends out of the avoiding structure through the connecting frame and is connected with the shell, and the connecting frame is provided with a hollow structure.