Supercharging device and range hood

Abstract

The invention belongs to the technical field of range hoods, and particularly relates to a supercharging device and a range hood. The supercharging device is used for being installed between the oil smoke outlet and the smoke exhaust pipe of the range hood body, the problem that the oil smoke exhaust resistance of the range hood is large can be effectively solved, and therefore the oil smoke exhaust capacity of the range hood is improved, and the effect is especially obvious for users with the large oil smoke exhaust resistance on the bottom layer or the high layer. The impeller is arranged on the periphery of the axial flow divider, the axial flow divider extends in the length direction, and the conical flow guide parts are arranged at the two ends of the axial flow divider correspondingly, so that lampblack airflow entering the supercharging device forms multiple strands of axial airflow under the flow dividing effect of the flow guide parts of the axial flow divider; and the lampblack airflow is prevented from forming vortex in the shell of the supercharging device, so that the lampblack airflow is discharged more smoothly. It is guaranteed that the exhaust air rate of the range hood supercharging device is large, enough pressure is provided, and it is guaranteed that the fan device meets the performance index of being connected with the range hood in series.

Description

Technical Field

[0001] The invention belongs to the technical field of range hoods, and in particular relates to a booster device and a range hood. Background Art

[0002] Since range hoods usually have to pass through a longer public flue to exhaust the fumes into the atmosphere, it is necessary to overcome the huge flue resistance before the fumes can be discharged from the flue. The performance of current range hoods is unified when they are designed, but the requirements for range hood performance on different floors are different. Most urban environments in China use public flues to exhaust fumes, so at this time, range hoods with a single performance cannot meet the needs of environments on different floors at the same time, especially for users on the lower floors of high-rise public flues. When the range hood faces great resistance in the discharge of fumes, it is difficult to discharge the fumes. Summary of the invention

[0003] The present invention aims to overcome the problem that the existing range hood using a common flue has a large oil fume discharge resistance which makes it difficult to discharge the oil fume, and provides a booster device and a range hood for assisting the oil fume discharge of the range hood.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A booster device, used for connecting to the oil fume outlet of the range hood body, comprises a shell and a fan device; the shell is provided with an air outlet and an air inlet located at both ends; the fan device is arranged in the shell, comprising a drive motor, an axial diverter arranged along the length direction and an impeller arranged on the outer periphery of the axial diverter, the axial diverter is provided with an axially arranged placement cavity and a side avoidance structure located at the side, the drive motor is placed in the placement cavity and is connected to the shell through the avoidance structure extended by a connecting frame, the motor shaft of the drive motor is drivingly connected to the axial diverter, the connecting frame is provided with a plurality of ventilation holes along the circumferential direction, and guide portions are formed at both ends of the axial diverter, and the guide portions are conical in shape.

[0006] Compared with the prior art, the booster device of the present invention is used to be installed between the oil fume outlet of the range hood body and the exhaust pipe, which can effectively overcome the problem of large oil fume discharge resistance of the range hood, thereby improving the oil fume exhaust capacity of the range hood, especially for users with large oil fume discharge resistance on the bottom or high floors, the effect is particularly obvious. The impeller is arranged on the outer periphery of the axial diverter, the axial diverter is extended along the length direction, and the two ends of the axial diverter are respectively provided with conical guide parts, so that the oil fume airflow entering the booster device forms multiple axial airflows under the diversion effect of the axial diverter guide part, avoiding the oil fume airflow from forming vortices in the housing of the booster device, allowing the oil fume airflow to be discharged more smoothly. It is guaranteed that the exhaust volume of the range hood booster device is large, and sufficient pressure is provided to ensure that the fan device meets the performance indicators of being connected in series with the range hood.

[0007] Furthermore, the upper and lower sides of the shell are respectively provided with narrowing portions with gradually narrowing outer diameters, and the outer ends of the narrowing portions are provided with air outlet portions, and the air outlet and air inlet are respectively arranged in the corresponding air outlet portions, and the inner diameter of the air outlet portion is smaller than the inner diameter of the middle portion of the shell; through such an arrangement, the suction pressure of the air inlet is effectively improved, thereby improving the oil fume exhaust capacity of the range hood, and effectively improving the overall structural strength of the shell, while at the same time making the size of the air inlet match the oil fume outlet of the range hood, and making the size of the air outlet match the exhaust pipe.

[0008] Furthermore, the motor shafts on both sides of the driving motor extend in opposite directions and are drivingly connected to the axial diverter, the motor shaft passes through the axial diverter and extends out of the housing cavity, and the position where the motor shaft passes through the axial diverter is fixedly connected to the axial diverter; the shell is provided with brackets at the air outlet and air inlet positions, and the ends of the motor shafts on both sides of the driving motor are rotationally connected to the corresponding brackets through bearings; through such an arrangement, the fan device is effectively fixed in the shell, the fixing is simple, and the product production is convenient.

[0009] Furthermore, a avoidance hole connected to the accommodation cavity is provided in the middle of the guide part, and the motor shaft extends out of the accommodation cavity through the avoidance hole, and the avoidance hole is located at the end of the guide part; the avoidance hole is fixedly connected to the motor shaft, and the avoidance hole is sealed with the motor shaft; through such an arrangement, the guide part can separate the oil smoke flowing into the supercharging device, avoid the oil smoke from forming a vortex in the middle position of the supercharging device, and make the airflow discharge smoother.

[0010] Furthermore, the impeller is provided with a plurality of impellers along the axial direction, and the blades of adjacent impellers are relatively staggered.

[0011] Furthermore, the impeller is provided with multiple impellers along the axial direction, and the blades of adjacent impellers are relatively staggered. Through such an arrangement, the multiple impellers are staggered in sequence, increasing the airflow capture area, greatly improving the wind pressure of the exhaust fume, and avoiding the backflow of fume.

[0012] Furthermore, the impeller is provided with three blades along the axial direction; the impeller has three blades equidistantly arranged along the circumferential direction; the blades between adjacent impellers are relatively staggered by 40°, and the blades between adjacent impellers are relatively staggered; through such an arrangement, the three layers of blades are staggered in sequence to increase the airflow capture area, so that after the oil smoke enters the boosting device, the wind pressure will increase successively through the three layers of blades, greatly improving the wind pressure of the exhausted oil smoke and avoiding the backflow of oil smoke.

[0013] Furthermore, a sound insulation structure is provided on the inner circumferential wall of the shell cavity of the shell; the sound insulation structure includes a plurality of sound insulation grooves arranged vertically and circumferentially on the inner circumferential wall of the shell cavity; through such an arrangement, the sound insulation grooves form small cyclone chambers on the inner wall of the shell cavity of the shell, so that the oil smoke stays in the sound insulation grooves during the discharge process, thereby isolating the noise from propagating outward.

[0014] Furthermore, the inner circumferential wall of the shell cavity of the shell is provided with a plurality of vertically arranged guide grooves along the circumference, and each of the guide grooves is connected to a plurality of vertically arranged sound insulation grooves; a plurality of guide grooves are provided in the vertical direction for collecting the oil and water discharged from the sound insulation grooves, and allowing the oil and water separated by centrifugal force to flow back to the oil cup of the range hood along the guide grooves.

[0015] Furthermore, the inner circumferential wall of the shell cavity of the shell is provided with a plurality of horizontally arranged sound insulation ribs along the vertical and circumferential directions respectively, the sound insulation groove is formed between the vertically adjacent sound insulation ribs, and the guide groove is formed between the circumferentially adjacent sound insulation ribs; through such an arrangement, the sound insulation groove of the sound insulation structure is formed by the space between a plurality of sound insulation ribs, and the sound insulation groove is simply arranged. In addition, by arranging the sound insulation ribs on the inner circumferential wall of the shell cavity of the shell, the friction between the airflow and the inner wall of the shell cavity can be reduced, thereby achieving the effect of noise reduction.

[0016] The range hood comprises a range hood body, an exhaust pipe and the booster device, wherein the air inlet of the housing is connected to the oil fume outlet of the range hood body, and the air outlet of the housing is connected to the exhaust pipe; by such arrangement, the booster device is used to be installed between the oil fume outlet of the range hood body and the exhaust pipe, 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, especially for users with large oil fume discharge resistance at the bottom or upper floors, the effect is particularly obvious. The impeller is arranged on the periphery of the axial diverter, the axial diverter is extended along the length direction, and the two ends of the axial diverter are respectively provided with a conical guide part, so that the oil fume airflow entering the booster device forms multiple axial airflows under the diversion effect of the axial diverter guide part, avoiding the oil fume airflow from forming vortexes in the housing of the booster device, so that the oil fume airflow is discharged more smoothly. It is ensured that the range hood booster device has a large exhaust volume and provides sufficient pressure, ensuring that the fan device meets the performance indicators connected in series with the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a range hood.

[0018] Figure 2 Schematic diagram of the booster device.

[0019] Figure 3 A cross-sectional view of a supercharging device.

[0020] Figure 4 This is a bottom schematic diagram of the supercharging device.

[0021] Figure 5 It is a schematic diagram of the first shell or the second shell.

[0022] Figure 6 This is a front view of the fan device.

[0023] Figure 7 A schematic diagram of a fan device.

[0024] Figure 8 A top view of the fan device.

[0025] Fig. 9 This is the internal structure diagram of the supercharging device.

[0026] Explanation of reference numerals: range hood body 4, range hood outlet 41, boost device 1, shell 2, fan device 3, drive motor 31, axial diverter 32, impeller 33, placement chamber 34, avoidance structure 35, bracket 36, blade 331, air outlet 21, air inlet 22, motor shaft 37, guide portion 321, avoidance hole 322, cylinder body 38, sound insulation structure 23, sound insulation groove 231, guide groove 232, sound insulation ridge 233, first shell 201, second shell 202, first connecting edge 203, second connecting edge 204, connecting hole 205, exhaust pipe 42, shell cavity 20, connecting portion 361, support arm 362, narrowing portion 29, air outlet portion 291, connecting frame 39, ventilation hole 391. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is described below in conjunction with the accompanying drawings. In the description of the present invention, 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 the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0028] Embodiment 1:

[0029] See also Figures 1 to 9The booster device 1 of the present invention is used to be connected to the oil fume outlet 41 of the range hood body 4, and includes a shell 2 and a fan device 3; the shell 2 is provided with an air outlet 21 and an air inlet 22 located at both ends; the fan device 3 is arranged in the shell 2, and includes a driving motor 31, an axial diverter 32 arranged along the length direction, and an impeller 33 arranged on the outer periphery of the axial diverter 32, the axial diverter 32 is provided with an axially arranged placement cavity 34 and a side avoidance structure 35 located on the side, the driving motor 31 is placed in the placement cavity 34 and the side avoidance structure 35 is extended through a connecting frame 39 and fixedly connected to the shell 2, the motor shaft 37 of the driving motor 31 is transmission-connected to the axial diverter 32, the connecting frame 39 is provided with a plurality of ventilation holes 391 along the circumferential direction, and guide portions 321 are formed at both ends of the axial diverter 32, and the guide portions 321 are conical.

[0030] Compared with the prior art, the booster device 1 of the present invention is used to be installed between the oil fume outlet 41 of the range hood body 4 and the first exhaust pipe 42, which can effectively overcome the problem of large oil fume discharge resistance of the range hood, thereby improving the oil fume exhaust capacity of the range hood, especially for users with large oil fume discharge resistance at the bottom or upper floors, the effect is particularly obvious. The impeller 33 is arranged on the outer periphery of the axial diverter 32, the axial diverter 32 is extended along the length direction, and the two ends of the axial diverter 32 are respectively provided with a conical guide part 321, so that the oil fume airflow entering the booster device 1 forms multiple axial airflows under the diversion effect of the guide part 321 of the axial diverter 32, avoiding the oil fume airflow from forming vortexes in the housing 2 of the booster device 1, so that the oil fume airflow is discharged more smoothly. It is ensured that the range hood booster device 1 has a large exhaust volume and provides sufficient pressure, ensuring that the fan device 3 meets the performance indicators of being connected in series with the range hood.

[0031] See also Figures 2 to 8 In one embodiment, the avoidance structure 35 is a avoidance opening arranged circumferentially on the side of the axial diverter 32. The cylinder body 38 of the drive motor 31 extends out of the avoidance opening through a connecting frame 39 and is fixedly connected to the housing 2. The avoidance opening enables the axial diverter 32 to form two split structures. Through such an arrangement, the avoidance structure 35 is simply arranged, which facilitates the production of the axial diverter 32.

[0032] See also Figures 2 to 5In one embodiment, the upper and lower sides of the shell 2 are respectively provided with a narrowing portion 29 with a gradually narrowing outer diameter, and the outer end of the narrowing portion 29 is provided with an air outlet portion 291, and the air outlet 21 and the air inlet 22 are respectively arranged in the corresponding air outlet portion 291, and the inner diameter of the air outlet portion 291 is smaller than the inner diameter of the middle part of the shell 2; through such a setting, the suction pressure of the air inlet 22 is effectively improved, thereby improving the oil fume exhaust capacity of the range hood, effectively improving the overall structural strength of the shell 2, and at the same time, the size of the air inlet 22 can match the oil fume outlet 41 of the range hood, and the size of the air outlet 21 can match the exhaust pipe 42.

[0033] See also Figure 3 , Figures 6 to 8 In one embodiment, the drive motor 31 is an existing dual-output shaft motor. The motor shafts 37 on both sides of the drive motor 31 extend in opposite directions and are connected to the axial diverter 32 in a transmission manner. The motor shaft 37 passes through the axial diverter 32 and extends out of the placement cavity 34. The position where the motor shaft 37 passes through the axial diverter 32 forms a fixed connection with the axial diverter 32; the housing 2 is provided with brackets 36 at the positions of the air outlet 21 and the air inlet 22, and the ends of the motor shafts 37 on both sides of the drive motor 31 are respectively connected to the corresponding brackets 36 through bearings to form a rotation connection; through such a setting, the fan device 3 is effectively fixed in the housing 2, and the fixing is simple at the time, which is convenient for product production.

[0034] See also Figures 2 to 8 In one embodiment, a avoidance hole 322 communicating with the accommodation cavity 34 is provided in the middle of the guide portion 321, and 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 guide portion 321; the avoidance hole 322 is fixedly connected to the motor shaft 37, and the avoidance hole 322 is sealed with the motor shaft 37; through such a configuration, the guide portion 321 can separate the oil smoke flowing into the supercharging device 1, avoid the oil smoke from forming a vortex in the middle position of the supercharging device 1, and make the airflow discharge smoother.

[0035] See also Figures 2 to 8 In one embodiment, the impeller 33 is provided with a plurality of impellers 33 along the axial direction, and the blades 331 of adjacent impellers 33 are relatively staggered. By such an arrangement, the plurality of impellers 33 are staggered in sequence, thereby increasing the airflow capture area, greatly improving the wind pressure of the exhaust fume, and avoiding the backflow of the fume.

[0036] See also Figures 3 to 8In one embodiment, the impeller 33 is provided with three blades 331 along the axial direction; the impeller 33 is provided with three blades 331 equidistantly arranged along the circumferential direction; further, the blades 331 between adjacent impellers 33 are relatively staggered by 40°, and the blades 331 between adjacent impellers 33 are relatively staggered; through such an arrangement, the three layers of blades 331 are staggered in sequence, increasing the airflow capture area, so that after the oil smoke enters the supercharging device 1, the wind pressure will increase in sequence through the three layers of blades 331, greatly improving the wind pressure of the exhaust oil smoke and avoiding the backflow of oil smoke.

[0037] See also Figures 2 to 7 In one embodiment, a sound insulation structure 23 is provided on the inner circumferential wall of the shell cavity 20 of the shell body 2; the sound insulation structure 23 includes a plurality of sound insulation grooves 231 arranged vertically and circumferentially on the inner circumferential wall of the shell cavity 20; through such an arrangement, the sound insulation grooves 231 form small cyclone chambers on the inner wall of the shell cavity 20 of the shell body 2, so that the oil smoke stays in the sound insulation grooves 231 during the discharge process, isolating the noise from propagating outward, effectively reducing noise interference, and having a good use effect.

[0038] See also Figures 3 to 7 In one embodiment, the inner circumferential wall of the shell cavity 20 of the shell 2 is provided with a plurality of vertically arranged guide grooves 232 along the circumferential direction, and each of the guide grooves 232 is connected to a plurality of vertically arranged sound insulation grooves 231; a plurality of guide grooves 232 are provided 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 guide grooves 232.

[0039] See also Figures 3 to 7 In one embodiment, the inner circumferential wall of the shell cavity 20 of the shell 2 is provided with a plurality of horizontally arranged sound insulation ribs 233 along the vertical and circumferential directions respectively, the sound insulation groove 231 is formed between the vertically adjacent sound insulation ribs 233, and the guide groove 232 is formed between the circumferentially adjacent sound insulation ribs 233, and the sound insulation ribs 233 are rectangular or square in shape; through such an arrangement, the sound insulation groove 231 of the sound insulation structure 23 is formed by the space between the plurality of sound insulation ribs 233, and the sound insulation groove 231 is simply arranged. In addition, by arranging the sound insulation ribs 233 on the inner circumferential 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.

[0040] See also Figures 3 to 7In one embodiment, the shell 2 includes a first shell 201 and a second shell 202 that are relatively assembled. The first shell 201 and the second shell 202 are symmetrical structures in the vertical direction. A first connecting edge 203 is provided on the periphery of the lower end assembly interface of the first shell 201, and a second connecting edge 202 is provided on the periphery of the upper end assembly interface of the second shell 2. The first connecting edge 203 and the second connecting edge 204 are respectively provided with connecting holes 205. The connecting hole 205 of the first connecting edge 203 is connected to the connecting hole 205 of the second connecting edge 204 by screws, so that the first shell 201 and the second shell 202 are assembled into one body. Through such a configuration, the mold forming of the shell 2 is convenient, and the installation of the range hood booster device 1 product and the cleaning of the internal oil are convenient.

[0041] See also Figures 3 to 7 In one embodiment, the bracket 36 includes a connecting portion 361 and three supporting arms 362 connected to 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 .

[0042] Embodiment 2:

[0043] See also Figures 1 to 8 The main purpose of this embodiment is to provide a range hood using a booster device 1 of embodiment 1, including a range hood body 4, a second exhaust pipe 42 and the booster device 1, the air inlet 22 of the shell 2 is connected to the oil fume outlet 41 of the range hood body 4, and the air outlet 21 of the shell 2 is connected to the second exhaust pipe 42.

[0044] Compared with the prior art, the range hood of the present invention, the booster device 1 is used to be installed between the oil fume outlet 41 of the range hood body 4 and the first exhaust pipe 42, which can effectively overcome the problem of large oil fume discharge resistance of the range hood, thereby improving the oil fume exhaust capacity of the range hood, especially for users with large oil fume discharge resistance at the bottom or upper floors, the effect is particularly obvious. The impeller 33 is arranged on the outer periphery of the axial diverter 32, the axial diverter 32 is extended along the length direction, and the two ends of the axial diverter 32 are respectively provided with a conical guide part 321, so that the oil fume airflow entering the booster device 1 forms multiple axial airflows under the diversion effect of the guide part 321 of the axial diverter 32, avoiding the oil fume airflow from forming vortexes in the housing 2 of the booster device 1, so that the oil fume airflow is discharged more smoothly. It is guaranteed that the range hood booster device 1 has a large exhaust volume and provides sufficient pressure, ensuring that the fan device 3 meets the performance indicators of the range hood in series.

[0045] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A booster device, used to connect to the oil fume outlet of the range hood, characterized in that: include: A shell body having an air outlet and an air inlet at two ends; The fan device is placed in a shell, comprising a driving motor, an axial diverter arranged along the length direction and an impeller arranged on the outer periphery of the axial diverter. The axial diverter is provided with an axially arranged placement cavity and a avoidance structure located on the side. The driving motor is placed in the placement cavity and is connected to the shell through the avoidance structure extending from a connecting frame. The motor shaft of the driving motor is transmission-connected to the axial diverter. The connecting frame is provided with a plurality of ventilation holes along the circumference. Guide portions are formed at both ends of the axial diverter, and the guide portions are conical in shape.

2. The boosting device according to claim 1, characterized in that: The upper and lower sides of the shell are respectively provided with narrowing parts with gradually narrowing outer diameters, and the outer ends of the narrowing parts are provided with air outlet parts, and the air outlet and the air inlet are respectively arranged in the corresponding air outlet parts.

3. The boosting device according to claim 1, characterized in that: The motor shafts on both sides of the driving motor extend in opposite directions and are drivingly connected to the axial diverter, the motor shaft passes through the axial diverter and extends out of the housing cavity, and the position where the motor shaft passes through the axial diverter is fixedly connected to the axial diverter; the shell is provided with brackets at the air outlet and air inlet positions, and the ends of the motor shafts on both sides of the driving motor are rotationally connected to the corresponding brackets through bearings.

4. The boosting device according to claim 3, characterized in that: A avoidance hole communicating with the placement cavity is provided in the middle of the guide portion, and the motor shaft extends out of the placement cavity through the avoidance hole, and the avoidance hole is located at the end of the guide portion; the avoidance hole is fixedly connected to the motor shaft, and the avoidance hole is sealed with the motor shaft.

5. The boosting device according to claims 1 to 4, characterized in that: The impellers are provided with a plurality of impellers along the axial direction, and the blades of adjacent impellers are relatively staggered.

6. The boosting device according to claim 5, characterized in that: The impellers are provided with three in the axial direction.

7. The boosting device according to claim 4, characterized in that: The impeller has three blades arranged equidistantly along the circumference; The blades between adjacent impellers are relatively staggered by 40°, and the blades between separated impellers are relatively staggered.

8. The boosting device according to claim 1, characterized in that: The inner peripheral wall of the shell cavity of the shell is provided with a sound insulation structure; The sound insulation structure comprises a plurality of sound insulation grooves arranged vertically and circumferentially on the inner peripheral wall of the shell cavity; A plurality of vertically arranged flow guide grooves are provided on the inner peripheral wall of the shell cavity of the shell along the circumferential direction, and each of the flow guide grooves is connected to a plurality of vertically arranged sound insulation grooves.

9. The boosting device according to claim 8, characterized in that: The inner peripheral wall of the shell cavity of the shell is provided with a plurality of vertically arranged guide grooves along the circumferential direction, and each of the guide grooves is connected to a plurality of vertically arranged sound insulation grooves; The inner peripheral wall of the shell cavity of the shell is provided with a plurality of horizontally arranged sound insulation ridges along the vertical and circumferential directions respectively, the sound insulation groove is formed between the vertically adjacent sound insulation ridges, and the guide groove is formed between the circumferentially adjacent sound insulation ridges.

10. A range hood, characterized in that: It comprises a range hood body, a smoke exhaust pipe and the booster device according to any one of claims 1 to 9, wherein the air inlet of the shell is connected to the smoke outlet of the range hood body, and the air outlet of the shell is connected to the smoke exhaust pipe.

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