WO2015089752A1 - 空气净化机及其风机 - Google Patents

空气净化机及其风机 Download PDF

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Publication number
WO2015089752A1
WO2015089752A1 PCT/CN2013/089770 CN2013089770W WO2015089752A1 WO 2015089752 A1 WO2015089752 A1 WO 2015089752A1 CN 2013089770 W CN2013089770 W CN 2013089770W WO 2015089752 A1 WO2015089752 A1 WO 2015089752A1
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WIPO (PCT)
Prior art keywords
air
air guiding
circle
sheet
degrees
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Application number
PCT/CN2013/089770
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English (en)
French (fr)
Inventor
赵兵
Original Assignee
赵兵
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Publication date
Application filed by 赵兵 filed Critical 赵兵
Priority to PCT/CN2013/089770 priority Critical patent/WO2015089752A1/zh
Publication of WO2015089752A1 publication Critical patent/WO2015089752A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention belongs to the field of air purification, and in particular relates to a fan and an air purifier applying the same.
  • a general air purifier 100 includes a front case 101 and a rear case 102.
  • the front case 101 and the rear case 102 together form an accommodation space.
  • the purifying device 103 and the fan 104 of the air cleaner 100 are installed in the housing.
  • the purifying device 103 and the fan 104 are respectively located at the upper and lower portions of the accommodating space, and the fan 104 includes an impeller, a motor for driving the impeller, and a volute 105.
  • the volute 105 defines an air outlet 106, and the air outlet 106 is opposite.
  • the purifying device 103 rotates the impeller under the driving of the motor, and sends the airflow to the purifying device 103 through the air outlet 106.
  • the airflow is purified by the purifying device 103 and sent into the chamber.
  • the airflow brought by the rotation of the impeller is concentrated only on one air outlet 106, the wind pressure is large, and the airflow discharged from the air outlet 106 of the volute 105 is tapped on the purification device 103, which generates a large noise, and the wind pressure is also generated.
  • the larger airflow is discharged by the air purifying device 103, the wind speed is large, and the airflow is blown to the person in the room, which makes the person in the room feel uncomfortable, and the air cleaner 100 has only one out of the fan 104.
  • the amount of airflow is not large, so that people in the room feel that the wind is small, which is insufficient to meet the demand for air purification.
  • the air ejector 100 adopts a larger volute 105 to collect and discharge the airflow brought by the rotation of the impeller, and the volume occupied by the volute 105 is large, so that the volume of the air cleaner 100 is large.
  • the object of the present invention is to provide a fan, which aims to solve the problem that the fan existing in the prior art is applied to an air purifier, so that the air cleaner has high noise, high air outlet speed, insufficient air volume and large volume.
  • the present invention is achieved by a fan comprising a casing, an impeller mounted in the casing, and a motor for driving the impeller, the fan further comprising a periphery of the impeller and located at the An air guiding device in the casing, the impeller comprising a plurality of blades arranged on the same first circle and rotating in a first hour hand direction, the air guiding device comprising arranged on the same second circle and along a plurality of air guiding members that are inclined in a second hour hand direction opposite to the first hour hand direction, the second circle being outside the first circle and the second circle being concentric with the first circle, adjacent to An air outlet is formed between the air guiding members, and the plurality of air guiding members form a plurality of the air outlets between the air guiding members, and the outer periphery of the casing is corresponding to the air outlet opening Exhaust port.
  • the fan of the invention limits the air guiding device to a casing, and does not need the volute as the air guiding component, but removes the larger volute, and adopts a small volume of a plurality of air guiding surrounding the impeller.
  • a plurality of air outlets are formed between all the air guiding members, and the air flow carried by the impeller is evenly distributed through a plurality of air outlets, and then uniformly discharged through the air outlets on the casing through the air outlets, the wind pressure is reduced, and the wind speed is changed. It is more suitable for human body needs, and is arranged around the periphery of the impeller through a plurality of air guiding members. Under the premise of not increasing the volume of the fan at least, the number of air outlets is increased, the air volume is increased, and the demand for air purification is met.
  • each of the air guiding members is a sheet-shaped air guiding sheet
  • each of the air guiding sheets has an air inlet end and an air outlet end
  • the air inlet ends of the plurality of air guiding sheets are all located in the same round line.
  • the air outlet ends of the plurality of air guiding sheets are all located on the same round line.
  • a vertical line connecting the air inlet end of each of the air guiding sheets and a center of the second circle where the air guiding sheet is located, and a direction in which the air guiding sheet is inclined Forming an acute angle ranging from 5 to 20 degrees
  • a vertical line connecting the air outlet end of each of the air guiding sheets and a center of the second circle where the air guiding sheet is located Forming an acute angle ranging from 5 to 20 degrees
  • the acute angle formed between the oblique directions is in the range of 36-45 degrees.
  • a vertical line connecting the air inlet end of each of the air guiding sheets and a center of the second circle where the air guiding sheet is located, and a direction in which the air guiding sheet is inclined Forming an acute angle of 10 degrees
  • a vertical line connecting the air outlet end of each of the air guiding sheets and a center of the second circle where the air guiding sheet is located and an inclined line of the air guiding sheet
  • the acute angle formed between the directions is 38 degrees.
  • each of the air guiding members includes a first air guiding piece, a second air guiding piece, and a transition air guiding piece that is arcually connected between the first air guiding piece and the second air guiding piece.
  • the first air guiding member has a first air inlet end and a first air outlet end
  • the second air guiding sheet includes a second air inlet end and a second air outlet end; one end of the transition air guiding piece is connected to the The first air inlet end of the first air guiding piece is connected to the second air inlet end of the second air guiding piece, and the first air inlet of the first air guiding member of all the air guiding members
  • the second round line of the second air guiding member of all the air guiding members is located on the same second round line, and the second round line and the round line are located on the same first round line. Concentric and the second round line is outside the first round line.
  • a vertical line connecting the first air inlet end of the first air guiding piece of the air guiding member and the center of the second circle where the first air guiding piece is located An acute angle formed between the oblique directions of the first air guiding piece ranges from 5 to 20 degrees, and the first air guiding end of the first air guiding member of each of the air guiding members and the first air guiding piece
  • An acute angle formed between a vertical line connecting the centers of the second circles and an oblique direction of the first air guiding sheet is 36-45 degrees, and each of the air guiding members Between the vertical line connecting the second air inlet end of the second air guiding sheet and the center of the second circle where the second air guiding sheet is located, and the oblique direction of the second air guiding sheet Forming an acute angle between 5-20 degrees, between the second air outlet end of the second air guiding member of each of the air guiding members and the center of the second circle where the second air guiding sheet is located.
  • a vertical line connecting the first air inlet end of the first air guiding piece of the air guiding member and the center of the second circle where the first air guiding piece is located is An acute angle formed between the oblique directions of the first air guiding piece is 16 degrees, and the first air outlet end of the first air guiding member of each of the air guiding members and the first air guiding piece are located An acute angle formed between a vertical line connecting the centers of the second circle and an oblique direction of the first air guiding piece is 45 degrees, and the second air guiding piece of each of the air guiding members An acute angle formed between the vertical line connecting the second air inlet end and the center of the second circle where the second air guiding sheet is located and the oblique direction of the second air guiding sheet is 12 degrees.
  • first air outlet end of the first air guiding piece of each of the air guiding members extends to a periphery of the casing, and the second air guiding piece of each of the air guiding members The second air outlet end extends to the periphery of the casing.
  • Another object of the present invention is to provide an air cleaner including a housing, a purifying device disposed in the housing, and a fan, the fan being disposed at a top of the housing, the housing being mounted at the housing The top of the housing.
  • the fan of the invention is disposed at the top of the casing of the air purifier, and the airflow is purified by the purifying device in the casing and then enters the fan, and then discharged by the plurality of air outlets of the fan, thereby avoiding the fan facing the purification device in the prior art.
  • FIG. 1 is an exploded perspective view of an air cleaner provided by the prior art.
  • Fig. 2 is a perspective view of an air cleaner according to a first embodiment of the present invention.
  • Fig. 3 is a cross-sectional view of the air cleaner of Fig. 2;
  • Fig. 4 is an exploded perspective view of the fan of the air cleaner of Fig. 2;
  • Figure 5 is a front elevational view of the fan of the air cleaner of Figure 4 with the casing removed.
  • Figure 6 is the same view as Figure 5.
  • Figure 7 is a view of the air deflecting member of Figure 6 removed.
  • Figure 8 is an exploded perspective view of an air cleaner according to a second embodiment of the present invention.
  • Figure 9 is a front elevational view of the fan of the air cleaner of Figure 8 with the casing removed.
  • Figure 10 shows a schematic view of the direction of the air flow.
  • the air cleaner 10 according to the first embodiment of the present invention includes a housing 11, a purifying device 12 disposed in the housing 11, and a fan 13, and the fan 13 is disposed on the The top of the housing 11.
  • the fan 13 includes a casing 14 , an impeller 15 mounted in the casing 14 , and a motor 16 that drives the impeller 15 to rotate.
  • the fan 13 further includes a periphery surrounding the impeller 15 and located at the An air guiding device 17 in the casing 14, the impeller 15 comprising a plurality of blades 18 arranged on the same first circle (not labeled) and inclined in a first hour hand direction, the air guiding device 17 being arranged a plurality of air guiding members 19 that are inclined on the same second circle (not shown) and in a second hour hand direction opposite to the first hour hand direction, the second circle being located outside the first circle and said
  • the two circles are concentric with the first circle, and an air outlet 20 is formed between the air guiding members 19, and the plurality of air guiding members 19 form a plurality of the air outlets between the adjacent air guiding members 19. 20, and a plurality of air outlets 21 are defined in the outer periphery of the casing 14 corresponding to the air outlets 20.
  • the fan 13 of the present invention is disposed at the top of the casing 11 of the air cleaner 10, and the airflow is purified by the purifying device 12 in the casing 11, and then enters the fan 13, and is discharged by the plurality of air outlets 20 of the fan 13, thereby avoiding The noise caused by the blowing of the fan 13 in the prior art toward the purifying device 12 is large.
  • the fan 13 of the present invention confines the air guiding device 17 in a casing 14 and does not require the volute as the wind guiding member, but removes the larger volute, and is disposed on the impeller 15 with a smaller volume.
  • a plurality of air outlets 20 are formed between the air guiding members 19, and a plurality of air outlets 20 are formed between the air guiding members 19, and the airflows carried by the impellers 15 are evenly distributed through the plurality of air outlets 20, and then exhausted by the air outlets 20 through the air outlets
  • the mouth 21 is uniformly discharged, the wind pressure is reduced, and the wind speed becomes suitable for the human body.
  • the air guiding member 19 is disposed around the periphery of the impeller 15 to increase the air outlet 20 without increasing the volume of the fan 13 at least. The quantity increases the amount of air output and meets the demand for air purification.
  • An air inlet (not shown) is defined in the casing 11, and the airflow enters the casing 11 through the air inlet, and is purified by the purifying device 12 and enters the fan 13 and then is exhausted by the air outlets 20 of the fan 13. Drain into the room.
  • a plurality of vents are disposed in the bottom of the fan 11 corresponding to the bottom of the fan 13.
  • the vents are present, and the airflow is purified by the purifying device 12, and the airflow enters the impeller 15 of the fan 13 through the vent.
  • each of the air guiding members 19 includes a first air guiding piece 22, a second air guiding piece 23, and an arc shape connected to the first air guiding piece 22 and the second guiding piece. Transition air deflector 24 between the wind blades 23.
  • the first air guiding piece 22 has a first air inlet end 25 and a first air outlet end 26
  • the second air guiding piece 23 includes a second air inlet end 27 and a second air outlet end 28 .
  • One end of the transition air guiding piece 24 is connected to the first air inlet end 25 of the first air guiding piece 22
  • the other end is connected to the second air inlet end 27 of the second air guiding piece 23 .
  • the first air inlet ends 25 of the first air guiding members 19 of all the air guiding members 19 are located on the same first round wire 29, and the second air guiding members 19 of all the air guiding members 19 are
  • the second inlet end 27 is located on the same second round line 30, the second round line 30 is concentric with the first round line 29 and the second round line 30 is located outside the first round line 29.
  • the first air inlet end 25 of the first air guiding piece 22 of each of the air guiding members 19 and the second air guiding piece 22 are located.
  • the acute angle ⁇ formed between the vertical line connecting the center of the circle and the oblique direction of the first air guiding piece 22 ranges from 5 to 20 degrees, that is, the inlet angle ⁇ of the first air guiding piece 22 ranges from 5-20 degrees.
  • the acute angle ⁇ formed between the oblique directions of the first air guiding sheet 22 ranges from 36 to 45 degrees, that is, the outlet angle ⁇ of the first air guiding sheet 22 ranges from 36 to 45 degrees.
  • the acute angle ⁇ formed between the oblique directions of the second air guiding sheet 23 ranges from 5 to 20 degrees, that is, the inlet angle ⁇ of the second air guiding sheet 23 ranges from 5 to 20 degrees.
  • the acute angle ⁇ formed between the oblique directions of the second air guiding sheet 23 ranges from 36 to 45 degrees, that is, the outlet angle ⁇ of the second air guiding sheet 23 ranges from 36 to 45 degrees.
  • a line between the first air inlet end 25 of the first air guiding piece 22 of each of the air guiding members 19 and the center of the second circle where the first air guiding piece 22 is located The acute angle ⁇ formed between the vertical line and the oblique direction in which the first air guiding sheet 22 is located is 16 degrees, that is, the entrance angle of the first air guiding sheet 22 is 16 degrees.
  • a vertical line connecting the first air outlet end 26 of the first air guiding member 19 of each of the air guiding members 19 and the center of the second circle where the first air guiding sheet 22 is located The acute angle ⁇ formed between the oblique directions of the first air guiding piece 22 is 45 degrees, that is, the exit angle ⁇ of the first air guiding piece 22 is 45 degrees.
  • a vertical line connecting the second air inlet end 27 of the second air guiding piece 23 of each of the air guiding members 19 and the center of the second circle where the second air guiding piece 23 is located The acute angle ⁇ formed between the oblique directions of the second air guiding piece 23 is 12 degrees, that is, the entrance angle ⁇ of the second air guiding piece 23 is 12 degrees.
  • An acute angle ⁇ formed between the oblique directions of the second air guiding piece 23 is 42 degrees, that is, the exit angle ⁇ of the second air guiding piece 23 is 42 degrees.
  • the acute angle formed between the second air guiding piece 23 of one of the air guiding members 19 and the first air guiding piece 22 of the adjacent air guiding member 19 ranges from 15 to 45 degrees.
  • the air outlet 20 formed between the second air guiding piece 23 of one of the air guiding members 19 and the first air guiding piece 22 of the adjacent air guiding member 19 is gradually expanded.
  • first air outlet end 26 of the first air guiding piece 22 of each of the air guiding members 19 extends to the periphery of the casing 14, the said each of the air guiding members 19
  • the second air outlet end 28 of the second air guiding piece 23 extends to the outer periphery of the casing 14 , whereby the air guiding member 19 fully utilizes the space inside the casing 14 to increase the length of the wind tunnel. Better purpose of guiding the wind.
  • the fan 13 further includes a mounting plate 31, the motor 16 and the impeller 15 are mounted on opposite sides of the mounting plate 31, and an output shaft of the motor 16 passes through the mounting plate 31 and the impeller. 15 is installed to drive the rotation of the impeller 15.
  • the mounting plate 31 is provided with a port corresponding to the impeller 15, so that under the driving of the motor 16, the rotation of the impeller 15 will bring the airflow into the impeller 15, and then the air outlet formed between the adjacent air guiding members 19 20 is discharged to the room.
  • Each of the air guiding members 19 is vertically mounted to a peripheral portion of the mounting board 31.
  • the outer dimension of the mounting plate 31 is adapted to the outer dimensions of the casing 14, and the mounting plate 31 is mounted with the casing 14 to cover the impeller 15 and the air guiding member 19.
  • the size parameters of the impeller 15 used in the air cleaner 10 are as follows: the diameter of the vane D: 250 mm, the diameter of the inlet d: 200 mm, the inlet angle ⁇ : 40 degrees, the exit angle ⁇ : 50 degrees, blade height h: 80 mm, number of blades 18: 36, the blade height referred to herein refers to the length of the blade 18. It is not necessarily the dimensional parameter of the present embodiment that the vane diameter D and the inlet diameter d are set according to the size that can be allowed under the same casing 14. Similarly, the inlet angle ⁇ and the outlet angle ⁇ can be set according to the air volume requirement, and are not necessarily the dimensional parameters of the present embodiment.
  • the number of the air outlets 20 of the fan 13 is four. It can be understood that in other embodiments, the number of the air outlets 20 of the fan 13 can be increased, and the number of the air guiding members 19 can be increased correspondingly.
  • the air cleaner 40 provided by the second embodiment of the present invention is substantially the same as the air cleaner 10 provided in the first embodiment, and the difference is as follows:
  • Each of the air guiding members 19 is a sheet-shaped air guiding sheet, and each of the air guiding sheets has an air inlet end 41 and an air outlet end 42.
  • the air inlet ends 41 of the plurality of air guiding sheets are located at the same end.
  • the acute angle ⁇ formed ranges from 5 to 20 degrees, that is, the inlet angle ⁇ of the air guiding sheet ranges from 5 to 20 degrees; the air outlet end 42 of each of the air guiding sheets and the air guiding sheet are located.
  • the acute angle ⁇ formed between the vertical line of the line between the centers of the second circle and the direction in which the wind deflector is inclined is 36-45 degrees, that is, the exit angle ⁇ of the wind deflector ranges from 36 to 45 degrees. .
  • the vertical line connecting the air inlet end 41 of each of the air guiding sheets and the center of the second circle where the air guiding sheet is located, and the direction in which the air guiding sheet is inclined The acute angle ⁇ formed is 10 degrees, that is, the inlet angle ⁇ of the air guiding sheet is 10 degrees; the air outlet end 42 of each of the air guiding sheets and the center of the second circle where the air guiding sheet is located
  • the acute angle ⁇ formed between the vertical line of the line and the direction in which the wind deflector is inclined is 38 degrees, that is, the exit angle ⁇ of the wind deflector is 38 degrees.
  • the diameter of the first round wire 43 where each of the air guiding fins is 270 mm, and the diameter of the second round wire 44 where each of the air guiding fins is 340 mm, each of the guiding winds The height of the sheet is 100 mm, and the height of the wind deflector referred to herein is the length of the guide sheet, and the number of the wind guide sheets applied is 15.
  • the number and size of the specific arrangement of the air guiding sheets can be determined according to the space in the casing 14 where the air guiding sheets can be arranged.
  • the number of the air outlets 20 of the fan 13 is more than four, so that the airflow carried by the impeller 15 is more uniformly discharged from the air outlet 20, it being understood that the air outlets 21 of the casing 14 are also distributed.
  • the periphery of the casing 14 is such that the airflow discharged from the air outlet 20 is discharged to the room by the air outlet 21.
  • the fan 13 adopts the structure of the air guiding member 19 to cooperate with the impeller 15 to complete the distribution of the airflow, in the art, for the present
  • the cooperation between the impeller 15 and the volute in the prior art realizes the distribution of the airflow. Since the design of the volute is of a certain design specification, for the same impeller 15, the volute using an air outlet will be more than the present invention.
  • the air guiding member 19 used in the fan 13 occupies a large volume. Therefore, the fan 13 of the present invention adopts the design of the air guiding member 19 to reduce the volume of the entire fan 13, and thus the volume of the entire air purifying device 10, 40. Also reduced accordingly.
  • the air purifiers 10 and 40 of the above embodiments use the air guiding member 19 to cooperate with the impeller 15 to realize the design of the plurality of air outlets 20, so that the air volume of the fan 13 is increased, although the amount of airflow increases or decreases more or less.
  • the wind pressure of the air outlet 20 is sufficient for the air cleaners 10 and 40 to increase the air volume after the air volume is increased.
  • the fan 13 (the second embodiment shown in FIG. 9) having the air guiding member 19 and the fan without the air guiding member (shown in FIG. 7) are tested. Contrast, as follows:
  • Test instrument stable frequency stabilized power supply, electronic air volume meter, air pressure gauge, JH11 purifier 1 (220V/50Hz), noise meter, among them, the impeller 15 parameters used by JH11 air purifier is the diameter of the vane: 250mm; Inlet diameter: 200 mm; inlet angle: 40 degrees; outlet angle: 50 degrees; vane height: 80 mm; number of blades 18: 36, parameters of the air guiding member 19 used in the second embodiment of the JH11 air purifier are as follows: The diameter of the first round wire 43 where the air guiding sheet is located is 270 mm; the diameter of the second round wire 44 where each of the air guiding sheets is located is 340 mm; the length of each of the air guiding sheets is 100 mm. The number of wind deflectors used is 15, the inlet angle of the wind deflector is 10 degrees, and the exit angle of the wind deflector is 38 degrees.
  • the JH11 purifier is powered by 220V, 50HZ, and the corresponding motor 16 power, motor 16 speed, and air output are tested. And record the corresponding form.
  • the air guiding device 19 is installed on the purifying machine, and the input voltage is adjusted so that the motor speed is consistent with the motor speed of the test without the wind deflector, and the motor power and the air output amount under the condition are tested. And record the corresponding form.
  • test data is as follows:
  • test items are: Motor speed (RPM) 1588 without motor guide wheel; motor power (W) 132 Air output (m3/h) 410; noise (dB) 67;

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种风机（13），包括罩壳（14）、安装于罩壳（14）内的叶轮（15）、驱动叶轮（15）转动的电机（16）及围设于叶轮（15）***且位于罩壳（14）内的导风装置（17），叶轮（15）包括排布于同一第一圆上且沿第一时针方向旋转倾斜的若干叶片（18），导风装置（17）包括排布于同一第二圆上且沿与第一时针方向相反的第二时针方向旋转倾斜的若干导风件（19），第二圆同心位于第一圆之外，若干导风件（19）与相邻导风件（19）之间形成若干出风口（20），罩壳（14）的***对应于出风口（20）开设有若干排风口（21）。该风机（13）采用体积较小的导风件（19），通过导风件（19）之间的出风口（20）平均分配气流使得风压减小、风速适宜、且提高了出风量。还公开了包括该风机（13）的空气净化机（10），罩壳（14）安装于空气净化机（10）的壳体（11）顶部。

Description

空气净化机及其风机 技术领域
本发明属于空气净化领域，尤其涉及一种风机及应用该风机的空气净化机。
 背景技术
请参阅图1，通常的空气净化机100包括前壳101和后壳102，前壳101与后壳102共同形成一容置空间，空气净化机100的净化装置103及风机104安装于该容置空间内，净化装置103及风机104分别位于该容置空间的上部与下部，风机104包括叶轮、驱动叶轮的电机及蜗壳105，该蜗壳105开设有一出风口106，该出风口106正对所述净化装置103，叶轮在电机驱动下转动，并将气流通过出风口106送入净化装置103，气流经过净化装置103的净化后送入室内。
由于叶轮转动所带入的气流仅集中在一个出风口106，风压较大，由蜗壳105的出风口106排出的气流拍打在净化装置103上，会产生较大的噪音，另外，风压较大的气流由该空气净化装置103排出后，其风速较大，该气流吹到室内的人身上，会让室内的人感到不舒适，而且，该空气净化机100由于风机104仅有一个出风口106，出风量不大，使室内的人感到风较小，不足以满足空气净化的需求。该空气净化机100的采用较大的蜗壳105对叶轮转动所带入的气流进行集流并排出，蜗壳105所占用的体积是较大的，使该空气净化机100的体积较大。
 技术问题
本发明的目的在于提供一种风机，旨在解决现有技术中存在的风机应用于空气净化机中而使空气净化机的噪音大、出风速度快、出风量不够及体积大的问题。
 技术解决方案
本发明是这样实现的，一种风机，其包括罩壳、安装于所述罩壳内的叶轮及驱动所述叶轮转动的电机，所述风机还包括围设于所述叶轮的***且位于所述罩壳内的导风装置，所述叶轮包括排布于同一第一圆上且沿第一时针方向旋转倾斜的若干叶片，所述导风装置包括排布于同一第二圆上且沿与所述第一时针方向相反的第二时针方向旋转倾斜的若干导风件，所述第二圆位于所述第一圆之外且所述第二圆与所述第一圆同心，相邻所述导风件之间形成一出风口，所述若干导风件于相邻所述导风件之间形成若干所述出风口，且所述罩壳的***对应于所述出风口开设有若干排风口。
本发明的风机将导风装置限制于一罩壳内，且不需要蜗壳作为导风部件，而是将体积较大的蜗壳去除，采用体积较小的若干围设于叶轮***的导风件，所有导风件之间形成若干出风口，通过若干出风口平均分配叶轮所带入的气流，然后通过这些出风口再由罩壳上的排风口均匀排出，风压减小，风速变得较适宜人体需要，通过若干导风件围设于叶轮的***，在至少不增加风机的体积的前提下，增加了出风口的数量，提高了出风量，满足人们对空气净化的需求。
进一步地，每一所述导风件为呈片状的导风片，每一所述导风片具有入风端及出风端，若干所述导风片的入风端均位于同一圆线上，若干所述导风片的出风端均位于同一圆线上。
进一步地，每一所述导风片的所述入风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角均相同，每一所述导风片的所述出风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角均相同。
进一步地，每一所述导风片的所述入风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角范围为5-20度，每一所述导风片的所述出风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角范围为36-45度。
优选地，每一所述导风片的所述入风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角为10度，每一所述导风片的所述出风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角为38度。
或者，每一所述导风件包括第一导风片、第二导风片及弧形连接于所述第一导风片与所述第二导风片之间的过渡导风片，所述第一导风件具有第一入风端与第一出风端，所述第二导风片包括第二入风端与第二出风端；所述过渡导风片的一端连接于所述第一导风片的第一入风端，另一端连接于所述第二导风片的第二入风端，所有所述导风件的所述第一导风件的第一入风端位于同一第一圆线上，所有所述导风件的所述第二导风件的第二入风端位于同一第二圆线上，所述第二圆线与所述么一圆线同心且所述第二圆线位于所述第一圆线之外。
进一步地，每一所述导风件的所述第一导风片的第一入风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角范围为5-20度，每一所述导风件的所述第一导风件的第一出风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角范围为36-45度，每一所述导风件的所述第二导风片的第二入风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角范围为5-20度，每一所述导风件的所述第二导风件的第二出风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角范围为36-45度。
优选地，每一所述导风件的所述第一导风片的第一入风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角为16度，每一所述导风件的所述第一导风件的第一出风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角为45度，每一所述导风件的所述第二导风片的第二入风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角为12度，每一所述导风件的所述第二导风件的第二出风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角为42度。
进一步地，每一所述导风件的所述第一导风片的所述第一出风端延伸至所述罩壳的***，每一所述导风件的所述第二导风片的所述第二出风端延伸至所述罩壳的***。
本发明的另一目的在于提供一种空气净化机，其包括壳体、设置于所述壳体内的净化装置及风机，所述风机设置于所述壳体的顶部，所述罩壳安装于所述壳体的顶部。
 有益效果
本发明的风机设置于空气净化机的壳体的顶部，气流在壳体内经过净化装置净化后再进入风机内，再由风机的多个出风口排出，避免了现有技术中的风机朝向净化装置吹风所带来的噪音大的问题。
 附图说明
图1是现有技术提供的空气净化机的立体分解图。
图2是本发明第一实施例提供的空气净化机的立体图。
图3是图2的空气净化机的剖视图。
图4是图2的空气净化机的风机的立体分解图。
图5是图4的空气净化机的风机的正视图，其中去除了罩壳。
图6与图5是相同的视图。
图7是图6中去除若干导风件的视图。
图8是本发明第二实施例提供的空气净化机的立体分解图。
图9是图8的空气净化机的风机的正视图，其中去除了罩壳。
图10示出了气流的走向示意图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
请同时参阅图2至图5，本发明第一实施例提供的空气净化机10包括壳体11、设置于所述壳体11内的净化装置12及风机13，所述风机13设置于所述壳体11的顶部。
所述风机13包括罩壳14、安装于所述罩壳14内的叶轮15及驱动所述叶轮15转动的电机16，所述风机13还包括围设于所述叶轮15的***且位于所述罩壳14内的导风装置17，所述叶轮15包括排布于同一第一圆（未标示）上且沿第一时针方向旋转倾斜的若干叶片18，所述导风装置17包括排布于同一第二圆（未标示）上且沿与所述第一时针方向相反的第二时针方向旋转倾斜的若干导风件19，所述第二圆位于所述第一圆之外且所述第二圆与所述第一圆同心，相邻所述导风件19之间形成一出风口20，所述若干导风件19于相邻所述导风件19之间形成若干所述出风口20，且所述罩壳14的***对应于所述出风口20开设有若干排风口21。所述罩壳14安装于所述壳体11的顶部
本发明的风机13设置于空气净化机10的壳体11的顶部，气流在壳体11内经过净化装置12净化后再进入风机13内，再由风机13的多个出风口20排出，避免了现有技术中的风机13朝向净化装置12吹风所带来的噪音大的问题。
本发明的风机13将导风装置17限制于一罩壳14内，且不需要蜗壳作为导风部件，而是将体积较大的蜗壳去除，采用体积较小的若干围设于叶轮15***的导风件19，所有导风件19之间形成若干出风口20，通过若干出风口20平均分配叶轮15所带入的气流，然后通过这些出风口20再由罩壳14上的排风口21均匀排出，风压减小，风速变得较适宜人体需要，通过若干导风件19围设于叶轮15的***，在至少不增加风机13的体积的前提下，增加了出风口20的数量，提高了出风量，满足人们对空气净化的需求。
所述壳体11上开设有进风口（图未示），气流由该进风口进入壳体11内，并经过净化装置12的净化后进入风机13内部，然后由风机13的若干个出风口20排出至室内。
所述壳体11对应所述风机13的底部开设有若干通风口（图未示），该通风口的存在，使经过净化装置12净化后气流由该通风口进入风机13的叶轮15处。
请再次参阅图4和图5，每一所述导风件19包括第一导风片22、第二导风片23及弧形连接于所述第一导风片22与所述第二导风片23之间的过渡导风片24。
所述第一导风片22具有第一入风端25与第一出风端26，所述第二导风片23包括第二入风端27与第二出风端28。所述过渡导风片24的一端连接于所述第一导风片22的第一入风端25，另一端连接于所述第二导风片23的第二入风端27。所有所述导风件19的所述第一导风件19的第一入风端25位于同一第一圆线29上，所有所述导风件19的所述第二导风件19的第二入风端27位于同一第二圆线30上，所述第二圆线30与所述么第一圆线29同心且所述第二圆线30位于所述第一圆线29之外。
请同时参阅图6，在本实施例中，每一所述导风件19的所述第一导风片22的第一入风端25与该第一导风片22所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片22所在的倾斜方向之间所形成的锐角α范围为5-20度，即第一导风片22的入口角α范围为5-20度。每一所述导风件19的所述第一导风件19的第一出风端26与该第一导风片22所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片22所在的倾斜方向之间所形成的锐角β范围为36-45度，即第一导风片22的出口角β范围为36-45度。每一所述导风件19的所述第二导风片23的第二入风端27与该第二导风片23所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片23所在的倾斜方向之间所形成的锐角γ范围为5-20度，即第二导风片23的入口角γ范围为5-20度。每一所述导风件19的所述第二导风件19的第二出风端28与该第二导风片23所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片23所在的倾斜方向之间所形成的锐角δ范围为36-45度，即第二导风片23的出口角δ范围为36-45度。
优选地，每一所述导风件19的所述第一导风片22的第一入风端25与该第一导风片22所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片22所在的倾斜方向之间所形成的锐角α为16度，即第一导风片22的入口角为16度。每一所述导风件19的所述第一导风件19的第一出风端26与该第一导风片22所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片22所在的倾斜方向之间所形成的锐角β为45度，即第一导风片22的出口角β为45度。每一所述导风件19的所述第二导风片23的第二入风端27与该第二导风片23所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片23所在的倾斜方向之间所形成的锐角γ为12度，即第二导风片23的入口角γ为12度。每一所述导风件19的所述第二导风件19的第二出风端28与该第二导风片23所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片23所在的倾斜方向之间所形成的锐角δ为42度，即第二导风片23的出口角δ为42度。
其中一导风件19的第二导风片23与相邻导风件19的第一导风片22之间所形成的锐角范围为15-45度。其中一导风件19的第二导风片23与相邻导风件19的第一导风片22之间所形成的出风口20呈渐扩状。
进一步地，每一所述导风件19的所述第一导风片22的所述第一出风端26延伸至所述罩壳14的***，每一所述导风件19的所述第二导风片23的所述第二出风端28延伸至所述罩壳14的***，由此，导风件19充分利用罩壳14内的空间，增加出风风道的长度，达到更好的导风的目的。
在本实施例中，所述风机13还包括安装板31、所述电机16及所述叶轮15安装于所述安装板31的相对两侧，电机16的输出轴穿过该安装板31与叶轮15安装，以驱动叶轮15的旋转。所述安装板31对应所述叶轮15开设有通口，使在电机16的驱动下，叶轮15的转动会将气流带入叶轮15内，然后由相邻导风件19之间形成的出风口20排出至室内。
各个导风件19垂直安装于所述安装板31的***部。所述安装板31的***尺寸与所述罩壳14的***尺寸相适应，安装板31与所述罩壳14安装在一起，将叶轮15及导风件19罩设其内。
请同时参阅图7，在本实施例中，所述空气净化机10所使用的叶轮15的尺寸参数如下：轮叶直径D：250mm，进口直径d：200mm，入口角σ：40度，出口角ρ：50度，轮叶高度h：80mm，叶片18数量：36，这里所说的轮叶高度是指叶片18的长度。对于轮叶直径D与进口直径d根据在相同罩壳14下所能够允许的尺寸进行设定，不一定如本实施例的尺寸参数。同样地，入口角σ和出口角ρ可以根据在风量要求进行设定，不一定如本实施例的尺寸参数。
在本实施例中，风机13的出风口20的数量为四，可以理解地，在其他实施例中，风机13的出风口20的数量可以增加，相应增加导风件19的排布数量。
请同时参阅图8和图9，本发明第二实施例提供的空气净化机40与第一实施例提供的空气净化机10大致相同，其不同之处在于如下：
每一所述导风件19为呈片状的导风片，每一所述导风片具有入风端41及出风端42，若干所述导风片的入风端41均位于同一第一圆线43上，若干所述导风片的出风端42均位于同一第二圆线44上。
进一步地，每一所述导风片的所述入风端41与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角均相同，每一所述导风片的所述出风端42与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角均相同。
进一步地，每一所述导风片的所述入风端41与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角ω范围为5-20度，即导风片的入口角ω范围为5-20度；每一所述导风片的所述出风端42与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角φ范围为36-45度，即导风片的出口角φ范围为36-45度。
优选地，每一所述导风片的所述入风端41与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角ω为10度，即导风片的入口角ω为10度；每一所述导风片的所述出风端42与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角φ为38度，即导风片的出口角φ为38度。
在本实施例中，每一所述导风片所在的第一圆线43的直径为270mm，每一所述导风片所在的第二圆线44的直径为340mm，每一所述导风片的高度为100mm，这里所说的导风片的高度是指导风片的长度，所应用的导风片的数量为15。
可以理解地，导风片的具体排布的片数及尺寸可以根据罩壳14内所述能排布导风片的空间来决定。
在本实施例中，风机13的出风口20的数量多于四个，使叶轮15所带入的气流更加均匀地由出风口20排出，可以理解，罩壳14的排风口21也分布于罩壳14的***，以便于由出风口20排出的气流再由排风口21排到室内。
在本发明的风机13的上述各实施例（包括第一实施例和第二实施例）中，风机13采用导风件19的结构配合叶轮15来完成气流的分配，在本领域内，对于现有技术中存在的叶轮15与蜗壳的配合实现气流的分配，由于蜗壳的设计是有一定的设计规格的，对于同样的叶轮15来说，采用一个出风口的蜗壳会比本发明的风机13里所使用的导风件19所占的体积要大，因此，本发明的风机13采用导风件19的设计使整个风机13的体积减小，进而整个空气净化机10、40的体积也相应减小。
上述各个实施例的空气净化机10、40采用导风件19配合叶轮15实现多个出风口20的设计，使风机13的出风量增加，虽然，此时出风量增加或多可少都会减小出风口20的风压，但对于空气净化机10、40来说，增加出风量后的风压足够使用。
为了更好地描述本发明的有益郊果，对有导风件19的风机13（如图9所示的第二实施例）及无导风件的风机（如图7所示）进行的测试对比，具体如下：
环境条件：温度：27℃；湿度：71%。
测试地点：技术实验室
测试仪器：稳频稳压电源、电子风量仪、风压表、JH11净化机1台（220V/50Hz）、、噪音计，其中，JH11空气净化器使用的叶轮15参数为轮叶直径：250mm；进口直径：200mm；入口角：40度；出口角：50度；轮叶高度：80mm；叶片18数量：36，JH11空气净化器使用的第二实施例中的导风件19的参数如下：每一所述导风片所在的第一圆线43的直径为270mm；每一所述导风片所在的第二圆线44的直径为340mm；每一所述导风片的长度为100mm，所应用的导风片的数量为15，导风片的入口角为10度，导风片的出口角为38度。
测试步骤：
在无导风轮的条件下给JH11净化机通上220V,50HZ电源，测试对应的电机16功率，电机16转速，出风量。并记录到对应表格。
给净化机装上导风件19，调整输入电压，使得电机转速同无导风轮的测试的电机转速一致，测试在该条件下的电机功率，出风量。并记录到对应表格。
测试数据如下：
测试项目为： 无导风轮状态下，电机转速（RPM） 1588 ；电机功率（W） 132 ；出风量（m³/h） 410 ；噪音（dB） 67 ；
有导风轮状态下， 电机转速（RPM） 1588 ；电机功率（W） 135 ；出风量（m³/h） 490 ；噪音（dB） 69

Claims (10)

  1. 一种风机，其包括罩壳、安装于所述罩壳内的叶轮及驱动所述叶轮转动的电机，其特征在于：所述风机还包括围设于所述叶轮的***且位于所述罩壳内的导风装置，所述叶轮包括排布于同一第一圆上且沿第一时针方向旋转倾斜的若干叶片，所述导风装置包括排布于同一第二圆上且沿与所述第一时针方向相反的第二时针方向旋转倾斜的若干导风件，所述第二圆位于所述第一圆之外且所述第二圆与所述第一圆同心，相邻所述导风件之间形成一出风口，所述所述若干导风件于相邻所述导风件之间形成若干所述出风口，所述罩壳的***对应于所述出风口开设有若干排风口。
  2. 如权利要求1所述的风机，其特征在于：每一所述导风件为呈片状的导风片，每一所述导风片具有入风端及出风端，若干所述导风片的入风端均位于同一圆线上，若干所述导风片的出风端均位于同一圆线上。
  3. 如权利要求2所述的风机，其特征在于：每一所述导风片的所述入风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角均相同，每一所述导风片的所述出风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角均相同。
  4. 如权利要求3所述的风机，其特征在于：每一所述导风片的所述入风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角范围为5-20度，每一所述导风片的所述出风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角范围为36-45度。
  5. 如权利要求4所述的风机，其特征在于：每一所述导风片的所述入风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角为10度，每一所述导风片的所述出风端与该导风片所在的所述第二圆的圆心之间的连线的垂直线及该导风片所在倾斜的方向之间所形成的锐角为38度。
  6. 如权利要求1所述的风机，其特征在于：每一所述导风件包括第一导风片、第二导风片及弧形连接于所述第一导风片与所述第二导风片之间的过渡导风片，所述第一导风片具有第一入风端与第一出风端，所述第二导风片包括第二入风端与第二出风端；所述过渡导风片的一端连接于所述第一导风片的第一入风端，另一端连接于所述第二导风片的第二入风端，所有所述导风件的所述第一导风件的第一入风端位于同一第一圆线上，所有所述导风件的所述第二导风件的第二入风端位于同一第二圆线上，所述第二圆线与所述么一圆线同心且所述第二圆线位于所述第一圆线之外。
  7. 如权利要求6所述的风机，其特征在于：每一所述导风件的所述第一导风片的第一入风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角范围为5-20度，每一所述导风件的所述第一导风件的第一出风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角范围为36-45度，每一所述导风件的所述第二导风片的第二入风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角范围为5-20度，每一所述导风件的所述第二导风件的第二出风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角范围为36-45度。
  8. 如权利要求7所述的风机，其特征在于：每一所述导风件的所述第一导风片的第一入风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角为16度，每一所述导风件的所述第一导风件的第一出风端与该第一导风片所在的所述第二圆的圆心之间的连线的垂直线与该第一导风片所在的倾斜方向之间所形成的锐角为45度，每一所述导风件的所述第二导风片的第二入风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角为12度，每一所述导风件的所述第二导风件的第二出风端与该第二导风片所在的所述第二圆的圆心之间的连线的垂直线与该第二导风片所在的倾斜方向之间所形成的锐角为42度。
  9. 如权利要求6所述的风机，其特征在于：每一所述导风件的所述第一导风片的所述第一出风端延伸至所述罩壳的***，每一所述导风件的所述第二导风片的所述第二出风端延伸至所述罩壳的***。
  10. 一种空气净化机，其包括壳体及设置于所述壳体内的净化装置， 其特征在于：所述空气净化机还包括如权利要求1-9任一项所述的风机，所述风机设置于所述壳体的顶部，所述罩壳安装于所述壳体的顶部。
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