CN203867933U - Air purifier and fan thereof - Google Patents
Air purifier and fan thereof Download PDFInfo
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- CN203867933U CN203867933U CN201420254414.2U CN201420254414U CN203867933U CN 203867933 U CN203867933 U CN 203867933U CN 201420254414 U CN201420254414 U CN 201420254414U CN 203867933 U CN203867933 U CN 203867933U
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- guide vane
- blower fan
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Abstract
The utility model provides a fan. The fan comprises a housing, an impeller located in the housing, a motor and an air guide device which is arranged at the periphery of the impeller in a surrounding manner and located in the housing, wherein the impeller comprises a plurality of blades which are distributed on the same first circle and rotate and incline in a first clock direction; the air guide device comprises a plurality of air guide pieces which are distributed on the same second circle and rotate and incline in a second clock direction; the second circle is concentrically located outside the first circle; and a plurality of air outlets are formed between adjacent air guide pieces, a plurality of exhaust outlets are formed in the periphery of the housing and correspond to the air outlets, and the air guide pieces rotate relative to the impeller under push of outlet air of the impeller. The utility model further provides an air purifier. The housing is mounted at the top of a casing, the rotating positions of the air guide pieces relative to the corresponding blades are adjusted according to the rotating speed of the impeller, and for different gears of the purifier, best combination of air outlet volume and noise is achieved by rotation of the air guide pieces relative to the impeller.
Description
Technical field
The utility model belongs to air purification field, relates in particular to a kind of blower fan and applies the air cleaner of this blower fan.
Background technique
Refer to Fig. 1, the blower fan 102 forming at existing centrifugal type wind wheel 100 and wind guide component 101, snail tongue 103 is t with the gap of the outer rim of wind wheel 100, when the air output of blower fan 102 is when designing air quantity, t=(0.05-0.1) * D, wherein D is the diameter of wind wheel 100, and under this condition, air-out efficiency and the noise of blower fan 102 reaches optimum value.
When above-mentioned blower fan 102 is applied in the household appliances such as air cleaner, blower fan 102 need to use multiple gears, and each gear has corresponding rotating speed and air output.When corresponding different air output, the t value that product needed is different.
In general, when rotating speed is during lower than design speed, air output and the noise of product all diminish, and now for product, air output is main demand, now need less t value that air output is increased.And when rotating speed is during higher than design speed, the air output of product and noise all become greatly, now noise is major consideration, needs larger t value make reducing noise.
But the t value of existing blower fan 102 is fixed, can not adjust t value size according to the variation of rotating speed and real needs.
Model utility content
The purpose of this utility model is to provide a kind of blower fan, is intended to solve the blower fan existing in prior art and is applied in air cleaner the size that can not adjust t value according to the different gears of air cleaner to adapt to the problem of demand of noise and air output.
The utility model is to realize like this, a kind of blower fan, it comprises case, be positioned at the impeller of described case and drive the motor of described wheel rotation, described blower fan also comprise be located in the peripheral of described impeller and be positioned at described case can be with respect to the wind-guiding device of described wheel rotation, described impeller comprises the some blades that are arranged in same the first circle above and tilt along the first clockwise rotation, described wind-guiding device comprises that being arranged in same the second circle the second clockwise upper and that edge is contrary with described the first clockwise rotates some air guide members of inclination, described second circle be positioned at described first circle outside and described second circle with described first circle concentric, described some air guide members form some exhaust outlets between adjacent described air guide member, the periphery of described case offers some exhaust ports corresponding to described exhaust outlet, the described air guide member of described wind-guiding device under the promotion of the air-out of described impeller with respect to described wheel rotation.Blower fan of the present utility model is limited to wind-guiding device in one case, and do not need spiral case as wind guide component, but spiral case larger volume is removed, adopt some air guide members that are located in impeller periphery of small volume, between all air guide members, form some exhaust outlets, the air-flow of bringing into by some exhaust outlet mean allocation impellers, then evenly discharged by the exhaust port on case again by these exhaust outlets, blast reduces, wind speed becomes more suitable human body needs, be located in the periphery of impeller by some air guide members, at least do not increasing under the prerequisite of volume of blower fan, increase the quantity of exhaust outlet, improve air output, meet the demand of people to air purification.
In addition, in the utility model, each air guide member of wind-guiding device can be with respect to wheel rotation, when the rotating speed of the impeller of blower fan is during higher than design speed, air guide member is with respect to wheel rotation, for one air-flow flowing out between two blades by impeller, this strand of air-flow is in the time that air guide member maintains static with respect to impeller, should be directly by discharging between adjacent air guide member, but because air guide member rotates, this strand of air-flow driving and between air guide member, producing a retarding efffect between adjacent air guide member and by this air guide member, the time that makes this burst of air flow stream cross air guide member increases, distance is also elongated, the change that is equal to the t value in background technique is large, reach thus the object that reduces pneumatic noise, in the time that the wheel speed of blower fan is less than design speed, the time that this strand of air-flow flows through between air guide member can shorten, distance shortens, being equal to t value reduces, air output is correspondingly increased, thus, on above-mentioned blower fan is applied in the household appliances such as air cleaner time, for different gears, realized the best of breed of air output and noise with respect to the rotation of impeller by air guide member.
Further, described blower fan also comprises mounting plate, described in each of described impeller, the bottom of blade is stood on described mounting plate, described in each of described impeller, the top of blade is fixedly connected with a fixed plate, the shell of described motor is fixedly installed on the middle part of described mounting plate, and the output shaft rotation of described motor is connected on the middle part of described fixed plate.
Further, described wind-guiding device also comprises the connecting plate that is installed on air guide member top described in each, and the middle part of described connecting plate is rotationally connected with the inner top of described case.
Further, the inner top of described case is provided with fixing column, described blower fan also comprises fixed block and bearing member, described fixed block comprises head and is connected in the body of rod on described head, the described body of rod is upwards fixed on described fixing column through described connecting plate and described bearing member successively, described head is positioned under described connecting plate, described bearing member the top of described case inner with described connecting plate between and the rotation of described bearing member be placed on the described body of rod.
Further, the middle part of described mounting plate offers port, and described mounting plate is provided with some fixed holes in the surrounding of described port, and the shell of described motor convexes with some fixing parts, the top of described motor is through described port, and described fixing part is corresponding with described fixed hole fixing.
Further, described in each, air guide member is guide vane in the form of sheets, and described in each, guide vane has wind inlet end and outlet air end, and the wind inlet end of some described guide vanes is all positioned on same round line, and the outlet air end of some described guide vanes is all positioned on same round line.
Further, the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described wind inlet end of guide vane and this guide vane place and this guide vane place tilt is all identical, and the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described outlet air end of guide vane and this guide vane place and this guide vane place tilt is all identical.
Further, the acute angle scope forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described wind inlet end of guide vane and this guide vane place and this guide vane place tilt is 5-20 degree, and the acute angle scope forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described outlet air end of guide vane and this guide vane place and this guide vane place tilt is 36-45 degree.
Further, the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described wind inlet end of guide vane and this guide vane place and this guide vane place tilt is 10 degree, and the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described outlet air end of guide vane and this guide vane place and this guide vane place tilt is 38 degree.
Another object of the present utility model is to provide a kind of air cleaner, and it comprises housing, is arranged at purification plant and above-mentioned blower fan in described housing, and described blower fan is arranged at the top of described housing, and described case is installed on the top of described housing.
Blower fan of the present utility model is arranged at the top of the housing of air cleaner, air-flow in housing through purification plant purify after enter again in blower fan, discharged by multiple exhaust outlets of blower fan again, avoided blower fan of the prior art towards the purification plant large problem of noise of bringing of drying.
Brief description of the drawings
Fig. 1 is the structural representation of the blower fan that provides of prior art.
Fig. 2 is the stereogram of the air cleaner that provides of the utility model embodiment.
Fig. 3 is the three-dimensional exploded view of the blower fan of the air cleaner of Fig. 2, wherein the exhaust port on not shown case.
Fig. 4 be the blower fan of Fig. 3 air-flow move towards schematic diagram.
Fig. 5 shows the blower fan of Fig. 3 in the wind triangle of air guide member wind outlet, and wherein solid line represents the wind triangle before air guide member is adjusted, and dotted line represents the wind triangle after air guide member is adjusted.
Fig. 6 is the cross-sectional schematic after the blower fan of Fig. 3 is assembled.
Fig. 7 is the view of removing some air guide members in Fig. 4, without the blower fan view of air guide member.
Fig. 8 is the three-dimensional assembly diagram of the blower fan of Fig. 3, has wherein removed top and the motor of case.
Fig. 9 is the plan view of Fig. 8.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 2 and Fig. 3, the air cleaner 10 that the utility model embodiment provides comprises housing 11, is arranged at purification plant (not shown) and blower fan 13 in described housing 11, and described blower fan 13 is arranged at the top of described housing 11.
Described blower fan 13 comprises case 14, the motor 16 that is positioned at the impeller 15 of described case 14 and drives described impeller 15 to rotate, described blower fan 13 also comprises the wind-guiding device 17 that can rotate with respect to described impeller 15 that is located in the peripheral of described impeller 15 and is positioned at described case 14, described impeller 15 comprises the some blades 18 that are arranged in same the first circle (not indicating) above and tilt along the first clockwise rotation, described wind-guiding device 17 comprises that being arranged in same the second circle (not indicating) the second clockwise upper and that edge is contrary with described the first clockwise rotates some air guide members 19 of inclination, described second circle be positioned at described first circle outside and described second circle with described first circle concentric, described some air guide members 19 form some exhaust outlets 20 between adjacent described air guide member 19, and the periphery of described case 14 offers some exhaust ports 21 corresponding to described exhaust outlet 20.Described case 14 is installed on the top of described housing 11.The described air guide member 19 of described wind-guiding device 17 rotates with respect to described impeller 15 under the promotion of the air-out of described impeller 15.
Blower fan 13 of the present utility model is arranged at the top of the housing 11 of air cleaner 10, air-flow housing 11 interior through purification plant purify after enter again in blower fan 13, discharged by multiple exhaust outlets 20 of blower fan 13 again, avoided blower fan 13 of the prior art towards the purification plant large problem of noise of bringing of drying.
Blower fan 13 of the present utility model is limited to wind-guiding device 17 in a case 14, and do not need spiral case as wind guide component, but spiral case larger volume is removed, adopt some air guide members 19 that are located in impeller 15 peripheries of small volume, between all air guide members 19, form some exhaust outlets 20, the air-flow of bringing into by some exhaust outlet 20 mean allocation impellers 15, then evenly discharged by the exhaust port 21 on case 14 again by these exhaust outlets 20, blast reduces, wind speed becomes more suitable human body needs, be located in the periphery of impeller 15 by some air guide members 19, at least do not increasing under the prerequisite of volume of blower fan 13, increase the quantity of exhaust outlet 20, improve air output, meet the demand of people to air purification.
Please refer to Fig. 4 and Fig. 5, Fig. 4 shows the trend of air-flow, Fig. 5 shows the wind triangle of air guide member 19 wind outlets, wherein solid line represents the wind triangle before air guide member 19 is adjusted, dotted line represents the wind triangle after air guide member 19 is adjusted, and in wind triangle, B2 refers to the exit angle of air guide member 19, be specially, the vertical line that first defines the line in the outlet air end of blade 18 of impeller 15 and the center of circle of the circle at this blade 18 places is A; The vertical line of the line in the center of circle of the definition outlet air end of air guide member 19 and the circle at this air guide member 19 places is B, and the angle between vertical line A and vertical line B is B
2; W
2the actual air-out speed of clearing machine 10, W
2' be the actual air-out speed after clearing machine 10 is adjusted, C
2rfor the air-out radial velocity of clearing machine, C
2r' be the air-out radial velocity after clearing machine 10 is adjusted, U
2for the air-out axial velocity of clearing machine, U
2' adjust the air-out axial velocity of time compensation for clearing machine 10; W
2, C
2r, U
2three forms the wind triangle before adjustment, W
2', C
2r', U
2-U
2' wind triangle after adjusting of difference composition.
In the utility model, each air guide member 19 of wind-guiding device 17 can rotate with respect to impeller 15, when the rotating speed of the impeller 15 of blower fan 13 is during higher than design speed, air guide member 19 rotates with respect to impeller 15, for one air-flow flowing out between two blades 18 by impeller 15, this strand of air-flow is in the time that air guide member 19 maintains static with respect to impeller 15, should be directly by discharging between adjacent air guide member 19, but because air guide member 19 rotates, this strand of air-flow driving and between air guide member 19, producing a retarding efffect between adjacent air guide member 19 and by this air guide member 19, the time that makes this burst of air flow stream cross air guide member 19 increases, distance is also elongated, the change that is equal to the t value in background technique is large, be equivalent to clearing machine 10 and input a U
2' offset, form the wind triangle after adjusting, reach thus and reduce the object of pneumatic noise, in the time that impeller 15 rotating speeds of blower fan 13 are less than design speed, the time that this strand of air-flow flows through between air guide member 19 can shorten, distance shortens, being equal to t value reduces, air output is correspondingly increased, thus, on above-mentioned blower fan 13 is applied in air cleaner 10 household appliances such as grade time, for different gears, realized the best of breed of air output and noise with respect to the rotation of impeller 15 by air guide member 19.
Described in each of described wind-guiding device 17, air guide member 19 is adjusted the pivotal position with respect to the described blade 18 of correspondence according to the rotating speed of described impeller 15.
Described wind-guiding device 17 rotates and has predetermined rotary damping power with respect to described impeller 15, the air-out of described impeller 15 has a Driving force to the described air guide member 19 of described wind-guiding device 17, and the described air guide member 19 of described wind-guiding device 17 rotates with respect to described impeller 15 in the time that described Driving force is greater than described predetermined rotary damping power.
Here, U
2' same to U
2proportional, meet above-mentioned requirement.As long as the predetermined rotary damping power of suitable adjustment impeller 15, just can adjust air output and the noise requirement of the different gears such as the household electrical appliances that meet air cleaner.
On described housing 11, offer intake grill (not shown), air-flow is entered in housing 11 by this intake grill, and through the purification of purification plant laggard enter blower fan 13 inside, be then expelled to indoor by several exhaust outlets 20 of blower fan 13.
The bottom of the corresponding described blower fan 13 of described housing 11 offers some ventilated port (not shown), and the existence of this ventilated port makes air-flow after purification plant purifies be entered impeller 15 places of blower fan 13 by this ventilated port.
Please refer to Fig. 6, described blower fan 13 also comprises mounting plate 31, described in each of described impeller 15, the bottom of blade 18 is stood on described mounting plate 31, described in each of described impeller 15, the top of blade 18 is fixedly connected with a fixed plate 50, the output shaft 161 of motor 16 is installed with impeller 15 through this mounting plate 31, with the rotation of drives impeller 15.The corresponding described impeller 15 of described mounting plate 31 offers port, makes under the driving of motor 16, and the rotation meeting of impeller 15 is brought air-flow in impeller 15 into, is then expelled to indoor by the exhaust outlet 20 forming between adjacent air guide member 19.
Particularly, the shell of described motor 16 is fixedly installed on the middle part of described mounting plate 31, and the output shaft 161 of described motor 16 is rotationally connected with on the middle part of described fixed plate 50.
Each air guide member 19 at right angle settings are in the outer part of described mounting plate 31.The Outside Dimensions of the Outside Dimensions of described mounting plate 31 and described case 14 adapts, mounting plate 31 can be installed together with described case 14, impeller 15 and air guide member 19 covers are established in it, also can mounting plate 31 be installed on the top of housing 11, then case 14 covers on mounting plate 31.
Further, described wind-guiding device 17 also comprises the connecting plate 51 that is installed on air guide member 19 tops described in each, and the middle part of described connecting plate 51 is rotationally connected with the inner top of described case 14.
Particularly, the inner top of described case 14 is provided with fixing column 52, described blower fan 13 also comprises fixed block 53 and bearing member 54, described fixed block 53 comprises head 55 and is connected in the body of rod 56 on described head 55, the described body of rod 56 is upwards fixed on described fixing column 52 through described connecting plate 51 and described bearing member 54 successively, described head 55 is positioned under described connecting plate 51, described bearing member 54 the top of described case 14 inner with described connecting plate 51 between and 54 rotations of described bearing member be placed on the described body of rod 56.
Further, the middle part of described mounting plate 31 offers port 32, described mounting plate 31 is provided with some fixed holes 33 in the surrounding of described port 32, the shell of described motor 16 convexes with some fixing parts 160, the top of described motor 16 is through described port 32, and described fixing part 160 is corresponding with described fixed hole 33 fixing.Fixing part 160 is positioned under mounting plate 31.
Please refer to Fig. 7, in the present embodiment, the dimensional parameters of the impeller 15 that described air cleaner 10 uses is as follows: wheel blade diameter D:250mm, inlet diameter d:200mm, Inlet cone angle σ: 40 degree, exit angle ρ: 50 degree, wheel blade height h:80mm, blade 18 quantity: 36, said wheel blade height refers to the length of blade 18 here.Set according to the size that can allow for 14 times at identical case with inlet diameter d for wheel blade diameter D, not necessarily as the dimensional parameters of the present embodiment.Similarly, Inlet cone angle σ and exit angle ρ can be according to requiring to set at air quantity, not necessarily as the dimensional parameters of the present embodiment.
Please refer to Fig. 8 and Fig. 9, described in each, air guide member 19 is guide vane in the form of sheets, described in each, guide vane has wind inlet end 41 and outlet air end 42, the wind inlet end 41 of some described guide vanes is all positioned on same the first circle line 43, and the outlet air end 42 of some described guide vanes is all positioned on same the second circle line 44.
Further, the acute angle forming between the vertical line of the line described in each between the center of circle of the described first circle line 43 at the described wind inlet end 41 of guide vane and this guide vane place and the direction that this guide vane place tilts is all identical, and the acute angle forming between the vertical line of the line described in each between the center of circle of the described second circle line 44 at the described outlet air end 42 of guide vane and this guide vane place and the direction that this guide vane place tilts is all identical.
Further, the acute angle ω scope forming between the vertical line of the line described in each between the center of circle of the described first circle line 43 at the described wind inlet end 41 of guide vane and this guide vane place and the direction that this guide vane place tilts is 5-20 degree, and the Inlet cone angle ω scope of guide vane is 5-20 degree; The acute angle forming between the vertical line of the line described in each between the center of circle of the described second circle line 44 at the described outlet air end 42 of guide vane and this guide vane place and the direction that this guide vane place tilts
scope is 36-45 degree, i.e. the exit angle of guide vane
scope is 36-45 degree.
Preferably, the acute angle ω forming between the vertical line of the line described in each between the center of circle of the described first circle line 43 at the described wind inlet end 41 of guide vane and this guide vane place and the direction that this guide vane place tilts is 10 degree, and the Inlet cone angle ω of guide vane is 10 degree; The acute angle forming between the vertical line of the line described in each between the center of circle of the described second circle line 44 at the described outlet air end 42 of guide vane and this guide vane place and the direction that this guide vane place tilts
be 38 degree, i.e. the exit angle of guide vane
be 38 degree.
In the present embodiment, described in each, the diameter of first of guide vane place the circle line 43 is 270mm, described in each, the diameter of second of guide vane place the circle line 44 is 340mm, described in each, the height of guide vane is 100mm, here the height of said guide vane refers to the length of guide vane, and the quantity of applied guide vane is 15.
Understandably, the sheet number of specifically arranging of guide vane and size can decide according to the interior described space that can arrange guide vane of case 14.
In the present embodiment, the quantity of the exhaust outlet 20 of blower fan 13 is more than four, the air-flow that impeller 15 is brought into is discharged by exhaust outlet 20 more equably, understandably, the exhaust port 21 of case 14 is also distributed in the periphery of case 14, so that the air-flow of being discharged by exhaust outlet 20 is discharged to indoor by exhaust port 21 again.
In blower fan 13 of the present utility model, blower fan 13 adopts the respective outer side edges impeller 15 of air guide member 19 to complete the distribution of air-flow, in related domain, realize the distribution of air-flow for the impeller 15 existing in prior art and coordinating of spiral case, because the design of spiral case is to have certain design specification, for same impeller 15, adopt the volume that the spiral case of an exhaust outlet can be more shared than 13 li of air guide members that use 19 of blower fan of the present utility model large, therefore, blower fan 13 of the present utility model adopts the design of air guide member 19 that the volume of whole blower fan 13 is reduced, and then also corresponding reducing of the volume of whole air cleaner 10.
Above-mentioned air cleaner 10 adopts air guide member 19 to coordinate impeller 15 to realize the design of multiple exhaust outlets 20, the air output of blower fan 13 is increased, although, now air output increases or how can lack the blast that all can reduce exhaust outlet 20, but for air cleaner 10, the blast increasing after air output enough uses.
In order to describe better useful suburb of the present utility model fruit, to having the blower fan 13 (being blower fan 13 of the present utility model) of rotating air guide member 19, the test comparison that has the blower fan of non-rotatable air guide member 19 and carry out without the blower fan (as shown in Figure 7) of air guide member, specific as follows:
Environmental conditions: temperature: 27 DEG C; Humidity: 71%.
Testing location: technology experiment chamber
Test instrument: frequency-voltage stabilized power source, electronics Air Flow Rate Instrument, draft gauge, JH11 clearing machine 1 (220V/50Hz),, noise meter, wherein, impeller 15 parameters that JH11 air cleaner uses are wheel blade diameter: 250mm; Inlet diameter: 200mm; Inlet cone angle: 40 degree; Exit angle: 50 degree; Wheel blade height: 80mm; Blade 18 quantity: the parameter of the air guide member 19 that 36, JH11 air cleaner uses is as follows: described in each, the diameter of first of guide vane place the circle line 43 is 270mm; Described in each, the diameter of second of guide vane place the circle line 44 is 340mm; Described in each, the length of guide vane is 100mm, and the quantity of applied guide vane is 15, and the Inlet cone angle of guide vane is 10 degree, and the exit angle of guide vane is 38 degree.
Testing procedure:
Lead to 220V under the condition without air guide member JH11 clearing machine, 50HZ power supply, tests corresponding motor 16 power, motor 16 rotating speeds, air output.And be recorded to corresponding form.
Load onto air guide member 19 to clearing machine, this air guide member 19 is not rotatable, adjusts input voltage, makes motor speed consistent with the motor speed of the test without air guide member, the power of motor of test under this condition, air output.And be recorded to corresponding form.
Load onto air guide member 19 to clearing machine, this air guide member 19 is rotating, adjusts input voltage, makes motor speed consistent with the motor speed of the test without air guide member, the power of motor of test under this condition, air output.And be recorded to corresponding form.
When clearing machine is when high-grade (rotating speed 1588RPM), test data is as follows:
| Test event | Without air guide member | There is air guide member (not rotatable) | There is air guide member (rotatably) |
| Motor speed (RPM) | 1588 | 1588 | 1588 |
| Power of motor (W) | 132 | 135 | 133 |
| Air output (m/h) | 410 | 490 | 470 |
| Noise (dB) | 67 | 69 | 66 |
When clearing machine is when middle-grade (rotating speed 1290RPM), test data is as follows:
| Test event | Without air guide member | There is air guide member (not rotatable) | There is air guide member (rotatably) |
| Motor speed (RPM) | 1290 | 1290 | 1290 |
| Power of motor (W) | 87 | 88 | 87 |
| Air output (m /h) | 320 | 380 | 370 |
| Noise (dB) | 54 | 57 | 55 |
When clearing machine is when low-grade (rotating speed 960RPM), test data is as follows:
| Test event | Without air guide member | There is air guide member (not rotatable) | There is air guide member (rotatably) |
| Motor speed (RPM) | 960 | 960 | 960 |
| Power of motor (W) | 32 | 32 | 32 |
| Air output (m/h) | 160 | 220 | 230 |
| Noise (dB) | 38 | 40 | 40 |
Test result:
When using after air guide member, air-out efficiency has obvious lifting in each gear air-out usefulness, and uses after rotating inducer, and when low-grade, product air output obviously promotes, and high-grade noise has clear improvement than fixing inducer.
Above-mentioned laboratory data is to test ground for concrete impeller, and concrete impeller 15 parameters are wheel blade diameter: 250mm; Inlet diameter: 200mm; Inlet cone angle: 40 degree; Exit angle: 50 degree; Wheel blade height: 80mm; Blade 18 quantity: 36, but wheel blade diameter D can set according to the size that can allow for 14 times at identical case with inlet diameter d, designed dimensional parameters not necessarily as in above-mentioned experiment.Similarly, Inlet cone angle σ and exit angle ρ can be according to requiring to set at air quantity, the dimensional parameters not necessarily as in above-mentioned experiment.In specific experiment process, also to test for different impeller size, its test data and test result are suitable with above-mentioned laboratory data, do not add and repeat at this.
For the air cleaner 10 of above-described embodiment, the blade 18 of impeller 15 is different from the clockwise of air guide member 19, for common technician, must think, the airflow strikes of being discharged by impeller 15 is to air guide member 19, and the noise of this air cleaner can increase a lot, but known through above-mentioned test data, having the noise of the air cleaner of air guide member 19 only to exceed 2dB with respect to the noise of the air cleaner without air guide member, is the degree that user can bear.
Please refer to Fig. 8, when those of ordinary skill in the art sees Fig. 8, can assume as a matter of course and think that air-flow direction in the time leaving blade 18 outer ring of impeller 15 changes, actual is because impeller 15 is rotating, so the air-flow in impeller 15 has a relative circular movement with the air-flow outside impeller 15, this wind-guiding mode after both direction stack is suitable.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a blower fan, it comprises case, be positioned at the impeller of described case and drive the motor of described wheel rotation, it is characterized in that: described blower fan also comprise be located in the peripheral of described impeller and be positioned at described case can be with respect to the wind-guiding device of described wheel rotation, described impeller comprises the some blades that are arranged in same the first circle above and tilt along the first clockwise rotation, described wind-guiding device comprises that being arranged in same the second circle the second clockwise upper and that edge is contrary with described the first clockwise rotates some air guide members of inclination, described second circle be positioned at described first circle outside and described second circle with described first circle concentric, described some air guide members form some exhaust outlets between adjacent described air guide member, the periphery of described case offers some exhaust ports corresponding to described exhaust outlet, the described air guide member of described wind-guiding device under the promotion of the air-out of described impeller with respect to described wheel rotation.
2. blower fan as claimed in claim 1, it is characterized in that: described blower fan also comprises mounting plate, described in each of described impeller, the bottom of blade is stood on described mounting plate, described in each of described impeller, the top of blade is fixedly connected with a fixed plate, the shell of described motor is fixedly installed on the middle part of described mounting plate, and the output shaft rotation of described motor is connected on the middle part of described fixed plate.
3. blower fan as claimed in claim 2, is characterized in that: described wind-guiding device also comprises the connecting plate that is installed on air guide member top described in each, and the middle part of described connecting plate is rotationally connected with the inner top of described case.
4. blower fan as claimed in claim 3, it is characterized in that: the inner top of described case is provided with fixing column, described blower fan also comprises fixed block and bearing member, described fixed block comprises head and is connected in the body of rod on described head, the described body of rod is upwards fixed on described fixing column through described connecting plate and described bearing member successively, described head is positioned under described connecting plate, described bearing member the top of described case inner with described connecting plate between and the rotation of described bearing member be placed on the described body of rod.
5. blower fan as claimed in claim 2, it is characterized in that: the middle part of described mounting plate offers port, described mounting plate is provided with some fixed holes in the surrounding of described port, the shell of described motor convexes with some fixing parts, the top of described motor is through described port, and described fixing part is corresponding with described fixed hole fixing.
6. blower fan as claimed in claim 1, it is characterized in that: described in each, air guide member is guide vane in the form of sheets, described in each, guide vane has wind inlet end and outlet air end, and the wind inlet end of some described guide vanes is all positioned on same round line, and the outlet air end of some described guide vanes is all positioned on same round line.
7. blower fan as claimed in claim 6, it is characterized in that: the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described wind inlet end of guide vane and this guide vane place and this guide vane place tilt is all identical, the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described outlet air end of guide vane and this guide vane place and this guide vane place tilt is all identical.
8. blower fan as claimed in claim 7, it is characterized in that: the acute angle scope forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described wind inlet end of guide vane and this guide vane place and this guide vane place tilt is 5-20 degree, the acute angle scope forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described outlet air end of guide vane and this guide vane place and this guide vane place tilt is 36-45 degree.
9. blower fan as claimed in claim 8, it is characterized in that: the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described wind inlet end of guide vane and this guide vane place and this guide vane place tilt is 10 degree, the acute angle forming between the direction that the vertical line of the line described in each between the center of circle of described second circle at the described outlet air end of guide vane and this guide vane place and this guide vane place tilt is 38 degree.
10. an air cleaner, it comprises housing and is arranged at the purification plant in described housing, it is characterized in that: described air cleaner also comprises the blower fan as described in claim 1-9 any one, and described blower fan is arranged at the top of described housing, and described case is installed on the top of described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254414.2U CN203867933U (en) | 2014-05-16 | 2014-05-16 | Air purifier and fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420254414.2U CN203867933U (en) | 2014-05-16 | 2014-05-16 | Air purifier and fan thereof |
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| Publication Number | Publication Date |
|---|---|
| CN203867933U true CN203867933U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420254414.2U Active CN203867933U (en) | 2014-05-16 | 2014-05-16 | Air purifier and fan thereof |
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| CN (1) | CN203867933U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172386A1 (en) * | 2014-05-16 | 2015-11-19 | 赵兵 | Air purifier and blower thereof |
| CN105090120A (en) * | 2015-09-07 | 2015-11-25 | 珠海格力电器股份有限公司 | Centrifugal fan assembly and air conditioning device |
| CN107762975A (en) * | 2016-08-17 | 2018-03-06 | 东莞市东坑合利美电子电器有限公司 | The draining pump of air-conditioning device |
| CN108487157A (en) * | 2018-03-29 | 2018-09-04 | 扬州三源机械有限公司 | A kind of sanitation cart slave coupled drive system |
| CN109139517A (en) * | 2018-10-19 | 2019-01-04 | 李坚祥 | Blower fan structure and blower fan system |
-
2014
- 2014-05-16 CN CN201420254414.2U patent/CN203867933U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172386A1 (en) * | 2014-05-16 | 2015-11-19 | 赵兵 | Air purifier and blower thereof |
| CN105090120A (en) * | 2015-09-07 | 2015-11-25 | 珠海格力电器股份有限公司 | Centrifugal fan assembly and air conditioning device |
| CN107762975A (en) * | 2016-08-17 | 2018-03-06 | 东莞市东坑合利美电子电器有限公司 | The draining pump of air-conditioning device |
| CN108487157A (en) * | 2018-03-29 | 2018-09-04 | 扬州三源机械有限公司 | A kind of sanitation cart slave coupled drive system |
| CN109139517A (en) * | 2018-10-19 | 2019-01-04 | 李坚祥 | Blower fan structure and blower fan system |
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