CN205618435U - Fan, volute blower and air conditioner - Google Patents
Fan, volute blower and air conditioner Download PDFInfo
- Publication number
- CN205618435U CN205618435U CN201620281409.XU CN201620281409U CN205618435U CN 205618435 U CN205618435 U CN 205618435U CN 201620281409 U CN201620281409 U CN 201620281409U CN 205618435 U CN205618435 U CN 205618435U
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- blower
- volute
- arc section
- side plate
- plate
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- 230000001154 acute effect Effects 0.000 claims abstract description 5
- 241000237858 Gastropoda Species 0.000 claims description 56
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 210000002105 tongue Anatomy 0.000 description 45
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- 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
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- 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
Abstract
The utility model provides a fan, volute blower and air conditioner, volute blower includes the bottom plate, the curb plate is connected with the bottom plate, forms the wind channel between bottom plate and the curb plate, and the exit in wind channel has the diffusion section, and the curb plate includes corresponding to the first curb plate of diffusion section and second curb plate, wherein, second curb plate and bottom plate place plane formation acute angle contained angle. With the certain angle of second curb plate slope in the diffusion section, increased fluid flow space in the fan casing, reduced the torrent that produces in the gaseous entering fan to realize the mesh of noise reduction.
Description
Technical field
This utility model relates to air conditioner technical field, in particular to a kind of blower fan, volute of blower and air-conditioner.
Background technology
In prior art, the aerodynamic noise of blower fan is mainly made up of rotational noise and eddy current crack.The rotational noise of blower fan is
The noise produced owing to the gas medium around equally distributed fan blade strike on blower fan causes ambient pressure to pulse.And revolve
Turn noise relatively big to fan noise total value contribution amount, reduce the Rotation Noise of blower fan and become working as of blower fan and air conditioner technical field
It is engaged in anxious.
Utility model content
Main purpose of the present utility model is to provide a kind of blower fan, volute of blower and air-conditioner, to solve prior art wind machine
The problem that fluid circulation space is little.
To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of volute of blower, including: base plate；
Side plate, is connected with base plate, between base plate and side plate formed air channel, the exit in air channel has diffuser, side plate include corresponding to
First side plate of diffuser and the second side plate；Wherein, the second side plate and base plate place planar shaped acutangulate angle.
Further, the second side plate is more than the second side plate away from the one of base plate near the distance between the side of base plate and the first side plate
Distance between side and the first side plate.
Further, acute angle is θ, wherein, and 85 °≤θ≤89 °.
Further, side plate also includes that coaming plate and snail tongue, coaming plate and snail tongue are arranged between the first side plate and the second side plate, first
Side plate is connected with coaming plate, and the second side plate is connected with snail tongue.
Further, the spiral case inlet pressure of coaming plate projection on base plate includes archimedes curve and loaarithmic curve.
Further, the equation of archimedes curve is: r=a*theta+120, theta=t*270 °, and wherein, r is blower fan snail
The radius of shell, unit is mm；Theta is the center of circle of the cross section of the volute of blower between the starting point to the end of archimedes curve
Angle, unit is degree；T is angle variation coefficient, t ∈ [0.1]；A is constant.
Further, the equation of loaarithmic curve is: r=exp (a*theta)+119；Theta=t*330 °；Wherein, r is volute of blower
Radius, unit is mm；Theta is the central angle of the cross section of the volute of blower between the starting point to the end of loaarithmic curve, single
Position is degree；T is angle variation coefficient, t ∈ [0.1]；A is constant.
Further, one end of snail tongue is connected with the second side plate, and the other end of snail tongue is connected with coaming plate, and snail tongue is towards air channel
Surface be arcwall face, snail tongue is uiform section structure.
Further, snail tongue includes the diversion section being connected with the second side plate, and diversion section is towards surface and the second side plate court in air channel
It is positioned at approximately the same plane to the surface in air channel.
Further, spiral case inlet pressure includes: the first arc section, one end of the first arc section and the snail tongue projection line phase on base plate
Connect；Second arc section, one end of the second arc section is connected with the other end of the first arc section, the other end of the second arc section
It is connected with the first end of archimedes curve.
Further, spiral case inlet pressure also includes: three-arc section, one end of three-arc section and the second end of archimedes curve
Being connected, the other end of three-arc section is connected with the first end of loaarithmic curve.
Further, spiral case inlet pressure also includes: the 4th arc section, and one end of the 4th arc section is connected with the second end of loaarithmic curve
Connect；Straightway, one end of straightway is connected with the other end of the 4th arc section: the 5th arc section, one end of the 5th arc section
Being connected with the other end of straightway, the other end and the projection on base plate of first side plate of the 5th arc section are connected.
Further, a length of h of straightway, h=2*R4*sin18 °, wherein, R4 is the radius of curvature of the 5th arc section.
Further, R1:R2:R3:R4=135.23:175.06:199.41:170.65, wherein, R1 is the song of the first arc section
Rate radius；R2 is the radius of curvature of the second arc section；R3 is the radius of curvature of three-arc section；R4 is the song of the 5th arc section
Rate radius.
According to another aspect of the present utility model, it is provided that a kind of blower fan, including volute of blower, volute of blower is above-mentioned blower fan
Spiral case.
According to another aspect of the present utility model, it is provided that a kind of air-conditioner, including blower fan, blower fan be above-mentioned in blower fan.
Application the technical solution of the utility model, volute of blower includes base plate and side plate.Side plate is connected with base plate, base plate and side plate
Between formed air channel, the exit in air channel has diffuser, and side plate includes the first side plate corresponding to diffuser and the second side plate.
Wherein, the second side plate and base plate place planar shaped acutangulate angle.Second side plate in diffuser is tilted certain angle, increases
The space that fluid flows in Blower Housing, reduces in gas enters blower fan the turbulent flow produced, thus realizes reducing noise
Purpose.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, of the present utility model
Schematic description and description is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the spiral case inlet pressure embodiment according to blower fan of the present utility model；
Fig. 2 shows the structural representation with blower fan of the present utility model；
Fig. 3 shows the structural representation with volute of blower of the present utility model；
Fig. 4 shows the top view of blower fan in Fig. 2；
Fig. 5 shows the axonometric chart of blower fan in Fig. 3；And
Fig. 6 shows the detonation configuration schematic diagram of blower fan in Fig. 5.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, base plate；20, the first side plate；30, the second side plate；40, diffuser；50, coaming plate；60, snail tongue；61, convex
Go out portion；610, arcwall face.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As depicted in figs. 1 and 2, according to a specific embodiment of the present utility model, it is provided that a kind of volute of blower.This blower fan
Spiral case includes base plate 10 and side plate.Side plate is connected with base plate 10.Air channel, the exit in air channel is formed between base plate 10 and side plate
There is diffuser 40.Side plate includes the first side plate 20 and the second side plate 30 corresponding to diffuser 40.Wherein, the second side plate 20
Angle is acutangulated with base plate 10 place planar shaped.
In the present embodiment, the second side plate 30 in diffuser 40 is tilted certain angle, increases fluid in Blower Housing
The space of flowing, reduces in gas enters blower fan the turbulent flow produced, reduces the air quantity attenuation in anticentripetal spiral casing, it is achieved reduce
The purpose of noise.
Further, side plate also includes that coaming plate 50 and snail tongue 60, coaming plate 50 and snail tongue 60 are arranged at the first side plate 20 and second
Between side plate 30, the first side plate 20 is connected with coaming plate 50, and the second side plate 30 is connected with snail tongue 60.Second side plate 30 is close
Distance between side and first side plate 20 of base plate 10 more than the second side plate 30 away from side and first side plate 20 of base plate 10
Between distance.I.e. second side plate 30 is arranged towards the first side plate 20 lopsidedness, and the acute angle of inclination is θ, wherein, and 85 °
≤θ≤89°.The fan outlet width that ensure that near base plate 10 side is so set more than going out near air inlet side
The width in air port.So arrange further such that the blast of air inlet of blower fan is reduced, then make the wind at air outlet
Press relative being reduced, then increase the flowing space in fluid spiral case air channel again, effectively reduce gas and enter centrifugal blower
Interior turbulization and the air quantity attenuation reduced in spiral case, it is achieved that reduce the purpose of fan noise.
The structure that bottom the coaming plate 50 of spiral case and spiral case, i.e. base plate 10 forms a whole.The line style i.e. spiral case of the coaming plate 50 of spiral case
Spiral case inlet pressure bottom molded line.As it is shown in figure 1, the volute type report from a liner straightway AB of the projection that coaming plate 50 is on base plate 10, circle
Segmental arc BC, the first arc section CD, the second arc section DE, archimedes curve EF, three-arc section FG, loaarithmic curve
GH, the 4th arc section HI, straightway IJ, the 5th arc section JK, straightway KL and straightway LA.Wherein, straightway
AB is second side plate 30 projection line on base plate 10, and arc section BC is the blower fan snail tongue 60 projection line on base plate 10,
Can draw from the starting point of line segment, one end of the first arc section CD is connected with the snail tongue 60 projection line on base plate 10.The
One end of two arc section DE is connected with the other end of the first arc section CD, the other end of the second arc section DE and Archimedes
First end of curve EF is connected.One end of three-arc section FG is connected with second end of archimedes curve EF, and the 3rd
The other end of arc section FG is connected with first end of loaarithmic curve GH.One end of 4th arc section HI and loaarithmic curve GH
The second end be connected；Straightway IJ, one end of straightway IJ is connected with the other end of the 4th arc section HI: the 5th arc section
JK, one end of the 5th arc section JK is connected with the other end of straightway IJ, the other end of the 5th arc section JK and the first side plate
20 projections on base plate 10 are connected.A ' in figure, B ', C ', D ', E ', F ', G ', H ', I ', J ',
K ', L ' are respectively A, B, C, D, E, F, G, H, I, J, K, the L on coaming plate 50 at base plate 10
On subpoint.
As it is shown in figure 1, with fan blade center of circle o as initial point, set up plane right-angle coordinate, start with x-axis, the first arc section CD
Start-stop angle is 78 °～91 °.Second arc section DE start-stop angle is 91 °～120 °.Archimedes's spiral shell curve EF start-stop
Angle is 120 °～260 °.Three-arc section FG start-stop angle is 260 °～281 °.Loaarithmic curve GH start-stop angle is
281 °～338 °.4th arc section HI start-stop angle is 338 °～354 °.Straightway IJ start-stop angle is 354 °～15 °,
Certainly, the length of straightway can also be h, h=2*R4*sin18 °, and wherein, R4 is the radius of curvature of the 5th arc section.Circle
Segmental arc JK start-stop angle is 15 °～24 °.
As it is shown in figure 1, make straightway AL, then find the first arc section circular arc line CD, the second arc section DE, the 3rd circle
Segmental arc FG, the center of circle a, b, c, d of the 5th arc section JK and fan blade center of circle o.The center of circle a, b, c, d are relative to the fan blade center of circle
The coordinate of o is-0.67 ,-5.96,10.37 ,-45.24,28.06,50.83,6.76,54.79.Then with a, b, c, d as circle
The heart draws arc, and the ratio of the radius of curvature of each camber line is: R1:R2:R3:R4=135.23:175.06:199.41:170.65.Its
In, R1 is the radius of curvature of the first arc section CD；R2 is the radius of curvature of the second arc section DE；R3 is three-arc section
The radius of curvature of FG；R4 is the radius of curvature of the 5th arc section JK.By the circular arc line made and log spiral phase matching.Snail
The composition of shell mould line is divided into circular arc line CD, DE, FG, JK and archimedes curve EF, log spiral GH, arc section
HI and straightway IJ.Respectively with A, L as starting point, the tangent line making arc section BC and arc section JK is straight line LK and straight line
AB.As shown in fig. 1, the spiral case inlet pressure at spiral case top is by straight line A ' B ', circular arc B ' C ', circular arc C ' D ', circular arc D ' E ',
Archimedes curve E ' F ', circular arc F ' G ', log spiral G ' H ', arc section H ' I ', straightway I ' J ', circular arc J ' K ', straight
Line K ' L ', straight line L ' A '.The composition of these line styles is consistent with the line style bottom spiral case.Owing to the side plate of diffuser 40 tilts
Certain angle, is expressed as straight line A ' B ' on molded line and translates a certain distance, and straight line L ' A ' distance correspond to shorten, i.e. straightway
L ' A ', A ' B ' are different at the molded line of proj ected bottom with circular arc B ' C ', i.e. project misaligned.Wherein, the radius of circular arc BC and B ' C '
Radius identical, i.e. due to second side plate 30 tilt cause the snail tongue 60 of coupled setting to tilt identical the most accordingly
Angle, the second side plate 30 of diffuser 40 will tilt certain angle to base plate 10, and this angle is acute angle, can be the biggest
Degree reduces gas and enters turbulization in centrifugal blower, reduces the air quantity attenuation in anticentripetal spiral casing, it is achieved reduce the mesh of noise
's.
Preferably, the equation of archimedes curve is: r=a*theta+120, theta=t*270 °.Wherein, r is volute of blower
Radius, unit is mm.Theta is the central angle of the cross section of the volute of blower between the starting point to the end of archimedes curve,
Unit is degree.T is angle variation coefficient, t ∈ [0.1].A is constant, and a=0.120.The equation of loaarithmic curve GH is: r
=exp (a*theta)+119, theta=t*330 °.Wherein, r is the radius of volute of blower, and unit is mm.Theta is loaarithmic curve
Starting point to the end between the central angle of cross section of volute of blower, unit is degree.T is angle variation coefficient, t ∈ [0.1].a
For constant, and a=0.0131.So arrange and can effectively reduce the air quantity attenuation in anticentripetal spiral casing further so that this wind
Machine spiral case has the effect preferably reducing noise.It should be noted that " starting point " and " terminal " refers to archimedes curve
Or the certain point on loaarithmic curve is to the spiral case inlet pressure between its additionally a bit, i.e. can be understood as part spiral case and the spiral case center of circle
Line is at the central angle of the cross section of the part projection of spiral case base plate 10.Angle variation coefficient t is: when spiral case inlet pressure is a circle
During cycle, when 360 °, t is 1, and when t is less than a circumference, t is decimal.
Being typically in prior art directly to tilt to be tilted by snail tongue 60, the radius i.e. changing circular arc BC and B ' C ' realizes snail
The inclination of shell, or snail tongue 60 is divided into the circular arc oblique snail tongues such as two part realizations.And in the present embodiment, snail tongue 60
One end is connected with the second side plate 30, and the other end of snail tongue 60 is connected with coaming plate 50, and snail tongue 60 towards the surface in air channel is
Arcwall face 610, snail tongue 60 is uiform section structure, i.e. from the inlet side of blower fan towards the air side of blower fan, i.e. as it is shown in figure 1,
Being perpendicular on the direction of paper, snail tongue 60 is uiform section structure, i.e. the radius of circular arc BC and B ' C ' is equal.I.e. pass through diffuser
40 tilt drives snail tongue 60 to produce certain inclination, and snail tongue 60 uses the structure of circular cone arc to ensure spiral case top and bottom
Arc radius is equal.Not only achieving oblique snail tongue, the arc structure snail tongue such as also achieve, this oblique snail tongue structure can be at utmost
Play the control air quantity of oblique snail tongue, blast, efficiency, effectively reduce in blower fan produce noise.
Preferably, snail tongue 60 includes the diversion section being connected with the second side plate 30, and diversion section is towards surface and second side in air channel
Plate 30 is positioned at approximately the same plane towards the surface in air channel.So setting decreases faced by the wind-guiding of the snail tongue 60 being positioned at air channel
The resistance of air-out, the effective air-out performance increasing blower fan.
As shown in Figures 3 to 6, according to another embodiment of the present utility model, it is provided that a kind of blower fan, including volute of blower,
Volute of blower is the volute of blower in above-described embodiment.This blower fan is centrifugal blower, and volute of blower includes spiral case body and snail tongue 60,
Spiral case body is to be made up of spiral case top board, base plate 10 and coaming plate 50, and the coaming plate 50 of spiral case is to connect spiral case base plate 10 and spiral case
Top board.Spiral case body and snail tongue 60 constitute air channel, and snail tongue 60 is projecting inward to form protuberance 61, outside snail tongue 60 has to air channel
Along the line, outer along the line by snail tongue 60 and snail tongue towards the shortest point of wall distance form.Extension cord is overall oblique line.Spiral case
Coaming plate 50 is made up of plane, arc surface, helicoid, and helicoid is logarithmic spiral face.
The present embodiment utilize multi-section circular arc line, helix composition spiral case inlet pressure and uses the structure of oblique snail tongue, realizing reducing wheel
Wide diameter.Effectively control air-flow separation during flowing through spiral case and backflow so that air-flow is little along the hydrostatic pressures losses of journey, it is ensured that
The greater efficiency of blower fan, is conducive to improving the air quantity of centrifugal blower, blast and reduction aerodynamic noise.
In the present embodiment, spiral case inlet pressure is divided into five sections of circular arcs, two sections of log spirals and three sections of straight lines and snail tongue 60 part
Rounding circular cone arc.On the basis of original log spiral, in generation, is carried out with circular arc line piecemeal in the position that folding degree is big
Replacing, the diameter of the circular arc line of each section becomes certain ratio, further reduces the outline diameter of spiral case inlet pressure, optimizes spiral case knot
Structure and the control to fan delivery.This snail tongue structure be different from of the prior art wait R or not etc. R realize the knot of oblique snail tongue
Structure, has tilted certain angle by diffuser 40, so that snail tongue 60 part is to use the most equal circular cone arc chamfering
Realize the structure of incline tongue, both ensure that the structural advantage that upper and lower fillet is equal, and achieved again the incline structure of snail tongue 60.This
The worm frame advantages of simple of sample, design ingenious, convenient and practical, the air quantity of centrifugal blower, blast, efficiency can be improved and have
Effect reduces the effect of fan noise.
Blower fan in above-described embodiment can be also used for air-conditioning technical field, i.e. according to another embodiment of the present utility model, it is provided that
A kind of air-conditioner, this air-conditioner includes blower fan, this blower fan is the blower fan in above-described embodiment.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this area
For technical staff, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, institute
Any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (16)
1. a volute of blower, it is characterised in that including:
Base plate (10)；
Side plate, is connected with described base plate (10), forms air channel between described base plate (10) and side plate, described air channel
Exit has diffuser (40), and described side plate includes the first side plate (20) corresponding to described diffuser (40) and
Two side plates (30)；Wherein, described second side plate (30) and described base plate (10) place planar shaped acutangulate angle.
Volute of blower the most according to claim 1, it is characterised in that described second side plate (30) is near described base plate (10)
Side and described first side plate (20) between distance more than described second side plate (30) away from described base plate (10)
Side and described first side plate (20) between distance.
Volute of blower the most according to claim 2, it is characterised in that described acute angle is θ, wherein, 85 °≤θ≤89 °.
Volute of blower the most according to any one of claim 1 to 3, it is characterised in that described side plate also includes coaming plate (50)
It is arranged at described first side plate (20) and the second side plate with snail tongue (60), described coaming plate (50) and described snail tongue (60)
(30) between, described first side plate (20) is connected with described coaming plate (50), and described second side plate (30) is with described
Snail tongue (60) connects.
Volute of blower the most according to claim 4, it is characterised in that described coaming plate (50) is on described base plate (10)
The spiral case inlet pressure of projection includes archimedes curve (EF) and loaarithmic curve (GH).
Volute of blower the most according to claim 5, it is characterised in that the equation of described archimedes curve (EF) is:
R=a*theta+120,
Theta=t*270 °,
Wherein,
R is the radius of described volute of blower, and unit is mm；
Theta is the center of circle of the cross section of the described volute of blower between the starting point to the end of described archimedes curve (EF)
Angle, unit is degree；
T is angle variation coefficient, t ∈ [0.1]；
A is constant.
Volute of blower the most according to claim 5, it is characterised in that the equation of described loaarithmic curve (GH) is:
R=exp (a*theta)+119；
Theta=t*330 °；
Wherein,
R is the radius of described volute of blower, and unit is mm；
Theta is the central angle of the cross section of the described volute of blower between the starting point to the end of described loaarithmic curve (GH),
Unit is degree；
T is angle variation coefficient, t ∈ [0.1]；
A is constant.
Volute of blower the most according to claim 4, it is characterised in that
One end of described snail tongue (60) is connected with described second side plate (30), the other end of described snail tongue (60) with
Described coaming plate (50) is connected, and described snail tongue (60) is arcwall face (610) towards the surface in air channel, described snail tongue (60)
For uiform section structure.
Volute of blower the most according to claim 8, it is characterised in that described snail tongue (60) includes and described second side plate (30)
The diversion section being connected, described diversion section is towards surface and described second side plate (30) in described air channel towards described air channel
Surface be positioned at approximately the same plane.
Volute of blower the most according to claim 5, it is characterised in that described spiral case inlet pressure includes:
First arc section (CD), one end of described first arc section (CD) and described snail tongue (60) are in described base plate (10)
On projection line be connected；
Second arc section (DE), another of one end of described second arc section (DE) and described first arc section (CD)
End is connected, and the other end of described second arc section (DE) is connected with the first end of described archimedes curve (EF).
11. volute of blower according to claim 10, it is characterised in that described spiral case inlet pressure also includes:
Three-arc section (FG), the of one end of described three-arc section (FG) and described archimedes curve (EF)
Two ends are connected, and the other end of described three-arc section (FG) is connected with the first end of described loaarithmic curve (GH).
12. volute of blower according to claim 11, it is characterised in that described spiral case inlet pressure also includes:
4th arc section (HI), one end of described 4th arc section (HI) and the second end of described loaarithmic curve (GH)
It is connected；
Straightway (IJ), one end of described straightway (IJ) is connected with the other end of described 4th arc section (HI):
5th arc section (JK), described one end of 5th arc section (JK) is connected with the other end of described straightway (IJ)
Connect, the other end of described 5th arc section (JK) and the projection on described base plate (10) of described first side plate (20)
It is connected.
13. volute of blower according to claim 12, it is characterised in that a length of h of described straightway (IJ),
H=2*R4*sin18 °, wherein, described R4 is the radius of curvature of described 5th arc section (JK).
14. volute of blower according to claim 13, it is characterised in that
R1:R2:R3:R4=135.23:175.06:199.41:170.65, wherein,
Described R1 is the radius of curvature of described first arc section (CD)；
Described R2 is the radius of curvature of described second arc section (DE)；
Described R3 is the radius of curvature of described three-arc section (FG)；
Described R4 is the radius of curvature of described 5th arc section (JK).
15. 1 kinds of blower fans, including volute of blower, it is characterised in that described volute of blower is the wind according to any one of claim 1 to 14
Machine spiral case.
16. 1 kinds of air-conditioners, it is characterised in that include that blower fan, described blower fan are the blower fan described in claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281409.XU CN205618435U (en) | 2016-04-05 | 2016-04-05 | Fan, volute blower and air conditioner |
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| CN201620281409.XU CN205618435U (en) | 2016-04-05 | 2016-04-05 | Fan, volute blower and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736469A (en) * | 2016-04-05 | 2016-07-06 | 珠海格力电器股份有限公司 | Fan, fan volute and air conditioner |
| TWI676741B (en) * | 2018-05-21 | 2019-11-11 | 日商三菱電機股份有限公司 | Centrifugal blower, air supply device, air conditioner, and refrigeration cycle device |
-
2016
- 2016-04-05 CN CN201620281409.XU patent/CN205618435U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736469A (en) * | 2016-04-05 | 2016-07-06 | 珠海格力电器股份有限公司 | Fan, fan volute and air conditioner |
| CN105736469B (en) * | 2016-04-05 | 2019-10-18 | 珠海格力电器股份有限公司 | Blower, volute of blower and air conditioner |
| TWI676741B (en) * | 2018-05-21 | 2019-11-11 | 日商三菱電機股份有限公司 | Centrifugal blower, air supply device, air conditioner, and refrigeration cycle device |
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