CN108071090A - Blower and axial fan thereof - Google Patents
Blower and axial fan thereof Download PDFInfo
- Publication number
- CN108071090A CN108071090A CN201710257324.7A CN201710257324A CN108071090A CN 108071090 A CN108071090 A CN 108071090A CN 201710257324 A CN201710257324 A CN 201710257324A CN 108071090 A CN108071090 A CN 108071090A
- Authority
- CN
- China
- Prior art keywords
- equal
- axis
- blade
- leading edge
- degree
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
Abstract
The invention discloses a blower and an axial flow fan thereof; the blower includes an axial flow fan; the axial flow fan includes: a central hub rotating about a central axis; a plurality of blades; defining an X axis, a Y axis, and a Z axis; the projection of the front edge on a plane formed by the X axis and the Y axis extends outwards along the radial direction of the central axis and extends forwards along the rotating direction of the axial flow fan; the projection of the front edge on a plane formed by the Z axis and the Y axis extends outwards along the radial direction of the central axis and extends towards one side of the air inlet of the axial flow fan; the included angle between the tangent of the plane formed by the X axis and the Y axis of the front edge and the Y axis on the projection of the plane formed by the X axis and the Y axis at the front edge point of the tip is more than or equal to 5 degrees and less than or equal to 15 degrees; the included angle between the tangent of the plane formed by the Z axis and the Y axis of the front edge and the Y axis at the point of the front edge of the tip and the Y axis is more than or equal to 15 degrees and less than or equal to 25 degrees. The blower and the axial flow fan thereof realize higher air volume under lower power consumption.
Description
Technical field
The present invention relates to a kind of hair-dryer and its aerofoil fans.
Background technology
Hair-dryer is a kind of common garden class instrument, and user can be helped to utilize and fallen leaves in air flow cleaning garden.It is existing
Hair-dryer be divided into centrifugal blower and axial-flow type hair-dryer.Wherein axial-flow type hair-dryer, which can generate larger air quantity, makes it
It is more suitable for the needs of user.
Hair-dryer generates required air-flow by air passage and the fan being arranged in air passage, in order to realize preferable blowing effect
Fruit, air channel structure are preferably devised to linear pattern air passage.
Existing hair-dryer is in order to improve power and usage time, often using larger battery pack.Existing hair-dryer
In order to assemble battery pack and set the handle of hair-dryer, often air passage is made to bend.
Existing aerofoil fan its power consumption when realizing larger air quantity is higher, reduces the cruising time of hair-dryer.
The content of the invention
To solve the deficiencies in the prior art, the higher wind of lower power consumption can be realized by being carried it is an object of the invention to provide one kind
The hair-dryer of the aerofoil fan of amount.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
A kind of hair-dryer, including：Fan；Motor, driving fan is around center axis thereof；Air passage portion, formed there are one approximately along
The air passage of central axis extension；Engaging portion, for being combined for the battery pack that motor is powered；Handle is respectively connected to air passage portion
And engaging portion；Wherein, fan is contained in air passage；Air passage is respectively equipped with a tunnel inlet and a wind at its opposite both ends
Road exports；Tunnel inlet is between ducting outlet and engaging portion；Engaging portion, air passage portion and handle form an admission space,
Admission space is radially open central axis.
Further, handle is in the outside for being radially located at tunnel inlet of central axis.
Further, in the axial direction of central axis, the distance of engaging portion to tunnel inlet is more than or equal to 120mm and is less than etc.
In 150mm.
Further, the engaging portion to the distance of tunnel inlet and air passage edge at position of fan in the axial direction of central axis
The ratio between full-size radially of central axis is more than or equal to 1 and is less than or equal to 3.
Further, the distance of engaging portion to tunnel inlet is bound to engaging portion with battery pack in the axial direction of central axis
When battery pack and blower mechanism into the ratio between whole size in the axial direction of central axis be more than or equal to 10% and be less than or equal to 16%.
Further, battery pack intersects with the direction that engaging portion combines and central axis inclination.
Further, when battery pack is bound to engaging portion, along the radially battery pack of central axis close to one end of handle
The upper end of battery pack is defined as, the one end of battery pack away from handle is defined as the lower end of battery pack；In the axial direction along central axis
On, the distance of upper end to the tunnel inlet of battery pack is more than the lower end of battery pack to the distance of tunnel inlet.
Further, it is front to define ducting outlet one side；It is rear to define tunnel inlet one side；Defining handle one side is
Top；Direction of the battery pack along back upper place to front lower place is combined with engaging portion.
Further, engaging portion is set there are one sliding surface；Sliding surface is oriented to slip of the battery pack with respect to engaging portion；It slides
Intersect with central axis inclination in face.
Further, engaging portion is set there are one confined planes：Confined planes, limitation battery pack is with respect to the position of engaging portion；/V
Face is perpendicular to sliding surface.
Further, when battery pack is bound to engaging portion, battery pack and blower mechanism into whole center of gravity be located at air inlet
In space.
A kind of aerofoil fan, including：Center hub is rotated around central axis；Multiple blades radially prolong from center hub
It stretches and surrounds central axis distribution；Multiple blades are integrally formed with center hub；Blade define be useful for generate wind suction surface and
Pressure face；Suction surface and pressure face compared with both ends cross into leading edge and back edge respectively；Leading edge turns aerofoil fan
It is located at the front of back edge on dynamic direction；Leading edge is defined as root leading edge point close to the point of center hub；Leading edge is away from center
The point of hub is defined as tip leading edge point；Y-axis line is defined as by root leading edge point and central axis upright and the line that intersects；Center
Axis is defined as z axis；Line that is vertical with Y-axis line and z axis and intersecting is defined as X-axis line；Leading edge is in X-axis line and Y-axis line
The projection of the plane formed extends radially outwardly and extends forward along the rotation direction of aerofoil fan along central axis；Front
The projection of the plane that edge is formed in z axis and Y-axis line extending radially outwardly and being entered the wind to aerofoil fan along central axis
One side extends；The tangent line being projected at the leading edge point of tip of plane and Y-axis line that leading edge is formed in X-axis line and Y-axis line
Angle is more than or equal to 5 degree and less than or equal to 15 degree；The plane that leading edge is formed in z axis and Y-axis line be projected in tip before
The angle of tangent line and Y-axis line at edge point is more than or equal to 15 degree and less than or equal to 25 degree.
Further, the tangent line being projected at the leading edge point of tip for the plane that leading edge is formed in X-axis line and Y-axis line with
The angle of Y-axis line is more than or equal to 6 degree and less than or equal to 10 degree；The plane that leading edge is formed with Y-axis line in z axis is projected in
The angle of tangent line and Y-axis line at the leading edge point of tip is more than or equal to 20 degree and less than or equal to 22 degree.
Further, the bending angle at the blade root of blade is more than or equal to 5 degree and less than or equal to 35 degree.
Further, the established angle at the blade root of blade is more than or equal to 30 degree and less than or equal to 60 degree.
Further, the distance of the blade tip of blade to central axis is the radius of the blade tip of blade；The blade root of blade is in
The distance of mandrel line is the radius of the blade root of blade；The ratio between the radius of the blade root of blade and the radius of blade tip of blade are more than or equal to
0.5 and less than or equal to 0.6.
Further, the radius of the blade tip of blade is more than or equal to 40mm and less than or equal to 55mm.
Further, the chord length at the blade root of blade is more than or equal to 18mm and less than or equal to 21mm.
Further, the leading edge flow inlet angle at the blade root of blade is more than or equal to 25 degree and less than or equal to 45 degree；The leaf of blade
Trailing edge efflux angles at root is more than or equal to 40 degree and less than or equal to 85 degree.
A kind of hair-dryer, including：Motor；Above-mentioned aerofoil fan, by motor-driven rotation；Air passage portion, is formed with guiding axis
The air passage for the wind that flow fan generates；Aerofoil fan is located in air passage.
Further, the rotating speed of aerofoil fan is more than or equal to 20000rpm and less than or equal to 25000rpm.
The invention has the beneficial effects that：There is relatively low work(by the optimization design aerofoil fan to aerofoil fan
Consumption and higher air quantity add the cruising time of hair-dryer.
Description of the drawings
Fig. 1 is the stereogram of the hair-dryer of the present invention；
Fig. 2 is the lateral partial structurtes sectional view of the hair-dryer in Fig. 1；
Fig. 3 is the plan view of the hair-dryer in Fig. 1；
Fig. 4 is the battery pack scheme of installation of the hair-dryer in Fig. 1；
Fig. 5 is the schematic diagram of the engaging portion of the hair-dryer in Fig. 1；
Fig. 6 is the stereogram of another hair-dryer；
Fig. 7 is the plan view of the hair-dryer in Fig. 6；
Fig. 8 is the stereogram of the fan of hair-dryer in Fig. 1；
Fig. 9 is the plan view of fan in Fig. 8；
The schematic diagram of the projection for the plane that Figure 10 is made of the blade of fan in Fig. 8 in z axis and Y-axis line；
Figure 11 is the established angle of fan and the schematic diagram at bending angle in Fig. 8.
Specific embodiment
As depicted in figs. 1 and 2, hair-dryer 100 includes fan 10, motor 20, air passage portion 30, engaging portion 40 and handle 50.
20 driving fan 10 of motor is rotated around central axis 101.
Air passage portion 30 is formed with the air passage 31 for being oriented to the wind that fan 10 generates.As a kind of specific embodiment, air passage
31 extend approximately along central axis 101.As an alternative embodiment, air passage can also be curved.As another kind
Optional embodiment, forming the air passage portion in air passage includes flexible flexible pipe.Air passage 31 is set respectively at its opposite both ends
There are one tunnel inlet 32 and a ducting outlets 33.The supply stream of tunnel inlet 32 enters air passage 31.Ducting outlet 33 supplies air-flow
Flow out air passage 31.Fan 10, which rotates, promotes air-flow to flow out air passage 31 from tunnel inlet 32 into air passage 31 and from ducting outlet 33.
Fan 10 is located in air passage 31.Fan 10 is between tunnel inlet 32 and ducting outlet 33.Further, motor 20 also is located at
In air passage 31.Motor 20 is between tunnel inlet 32 and ducting outlet 33.
Engaging portion 40 is used to install battery pack 60.Can be that motor 20 is powered when battery pack 60 is bound to engaging portion 40.
Handle 50 holds to operate hair-dryer 100 for user.Handle 50 connects air passage portion 30 and engaging portion 40.
Tunnel inlet 32 is between ducting outlet 33 and engaging portion 40.Tunnel inlet 32 is located at engaging portion 40 and fan 10
Between.
The construction of engaging portion 40, air passage portion 30 and handle 50 at tunnel inlet 32 so that form a more open sky
Between, facilitate airflow into tunnel inlet 32.It may be said that engaging portion 40, air passage portion 30 and handle 50 constitute an admission space
80.Admission space 80 is radially open central axis 101.Air can along central axis 101 radially into
Headroom 80, admission space 80 are connected with tunnel inlet 32, so as to allow the flow to enter air passage 31 from tunnel inlet 32.Air inlet
The setting in space 80 to reduce air inlet windage, improves the efficiency of blowing machine.Handle 50 in central axis 101 radially
Positioned at the outside of tunnel inlet 32.Handle 50 is located at tunnel inlet in the projection of the plane perpendicular to central axis 101 in other words
32 in the outside of the projection of the plane perpendicular to central axis 101.Handle 50 is avoided to be arranged on the throwing corresponding to tunnel inlet 32
It causes to reduce air-flow inflow in the range of shadow, avoids reducing 32 institute of tunnel inlet directly corresponding skies by the setting of 50 position of handle
Between, influence air intake efficiency.
Hair-dryer 100 further includes isolation cover 70.Isolation cover 70 covers tunnel inlet 32, can prevent foreign matter from entering air passage 31
Damage fan 10.Simultaneously human hand can also be avoided to be strayed into air passage 31 and generate danger.In general, isolation cover 70 is both configured to remote
Direction protrusion from tunnel inlet 32.As depicted in figs. 1 and 2, the isolation cover 70 of hair-dryer 100 is projecting inward to admission space 80.
Isolation cover 70 can not be used as tunnel inlet 32.Air passage portion 30 includes air duct 34.The inner wall of air duct 34 forms air passage 31.And air duct
34 both ends are then respectively formed tunnel inlet 32 and ducting outlet 33.Isolation cover 70 is installed to air duct 34 and forms tunnel inlet 32
One end.
In the axial direction of central axis 101, engaging portion 40 to tunnel inlet 32 distance L1 be more than or equal to 120mm be less than etc.
In 150mm.Axial direction of the hair-dryer 100 in central axis 101 will be caused when the distance L1 of engaging portion 40 to tunnel inlet 32 is excessive
On become large-sized, be not easy to user and use and carry.In addition when the distance of engaging portion 40 to tunnel inlet 32 is too small by shadow
Ring the air intake efficiency of hair-dryer 100.The setting of engaging portion 40 to the distance of tunnel inlet 32 ensure that hair-dryer 100 is unlikely to
It is long while in turn ensure the tool of hair-dryer 100 there are one higher efficiency.
Different for the diameter of its fan 10 of different hair-dryers 100 and air passage 31, the setting of the size is to hair-dryer 100
Efficiency have an impact.Air passage 31 is at 10 position of fan along the full-size L2 radially of central axis 101, size L2
It can also regard the internal diameter in the air passage 31 at 10 position of fan as.The ratio of distance L1 and size L2 is less than or equal to more than or equal to 1
3.It so sets and ensure that hair-dryer 100 is unlikely to long, also ensure sufficient air inlet.Specifically, the rotating speed of fan 10
It is less than or equal to 30000rpm more than or equal to 20000rpm.Further, the rotating speed of fan 10 be more than or equal to 20000rpm be less than etc.
In 25000rpm.Fan 10 is aerofoil fan.The maximum wind power of ducting outlet 33 is more than or equal to 12N and is less than or equal to 25N.Air passage goes out
The maximum wind velocity of mouth 33 is more than or equal to 45m/s and is less than or equal to 70m/s.
Engaging portion 40 is bound to the distance L1 of tunnel inlet 32 and in battery pack 60 in the axial direction of central axis 101
The ratio for the whole size L3 on central axis 101 that battery pack 60 and hair-dryer 100 are formed is more than or equal to 10% during conjunction portion 40
It is 10%≤L1/L3≤16% less than or equal to 16%.The length for ensureing hair-dryer 100 is so set in the reasonable scope convenient for use
Family carries out operating while in turn ensuring sufficient air inlet.
As shown in Figure 3 and Figure 4, battery pack 60 is detachably connected to engaging portion 40.Battery pack 60 is slidingly attached to engaging portion
40.Battery pack 60 intersects with the direction D1 that engaging portion 40 combines and the inclination of central axis 101.Battery pack 60 is combined with engaging portion 40
Direction D1 with perpendicular to central axis 101 plane inclination intersect.The direction D1 that battery pack 60 is combined with engaging portion 40 is uneven
Row is in central axis 101, and further, the direction D1 that battery pack 60 is combined with engaging portion 40 is not orthogonal to central axis 101.
When battery pack 60 is bound to engaging portion 40, along the radially battery pack 60 of central axis 101 close to handle 50
One section of upper end 61 for being defined as battery pack 60, the one section lower end 62 that is defined as battery pack 60 of the battery pack 60 away from handle 50.
In the axial direction along central axis 101, the distance L4 of upper end 61 to the tunnel inlet 32 of battery pack 60 is more than battery
The distance L5 of tunnel inlet 32 is arrived in the lower end 62 of bag 60.
It is front to define 33 one side of ducting outlet, and 32 one side of tunnel inlet is rear.50 one side of handle is top.Engaging portion
40 are located at the rear of tunnel inlet 32.Ducting outlet 33 is located at the front of tunnel inlet 32.Position of the battery pack 60 along back upper place
Engaging portion 40 is inserted into, and slides to be combined with engaging portion 40 along back upper place to the direction of front lower place.60 inclined peace of battery pack
Dress mode allows user easily to dismantle or install battery pack 60.
As shown in figure 5, engaging portion 40 is set, there are one sliding surface 41 and a confined planes 42.Sliding surface 41 is oriented to battery pack 60
With respect to the slip of engaging portion 40.Confined planes 42 limit position of the battery pack 60 with respect to engaging portion 40.Sliding surface 41 and central axis
101 inclinations are intersecting.Confined planes 42 are perpendicular to sliding surface 41.
As shown in figure 3, when battery pack 60 is bound to engaging portion 40, the entirety of battery pack 60 and the composition of hair-dryer 100
Center of gravity is located in air intake space.The whole center of gravity that battery pack 60 and hair-dryer 100 are formed is located in the projection of central axis 101
Shown handle 50 is in the range of the projection of central axis 101, convenient for the user to operate and gripping.
As another embodiment, as shown in Figure 6 and Figure 7, hair-dryer 100 ' increases branch on the basis of hair-dryer 100
Support seat 90 '.Convenient for stable placing blower 100 ' on the ground, convenient for the storage of hair-dryer 100 '.Hair-dryer 100 ' is similary
Form admission space 80 '.Support base 90 ' connects engaging portion 40 ' and air passage portion 30 '.Specifically, support base 90 ' is away from handle
The one side connection engaging portion 40 ' of hand 50 ' and air passage portion 30 '.Handle 50 ' and support base 90 ' are respectively connected to the two of engaging portion 40 '
End.Handle 50 ' and support base 90 ' are respectively connected to the both ends in air passage portion 30 '.
As shown in figure 8, fan 10 includes center hub 11 and multiple blades 12.Center hub 11 is rotated around central axis 101.In
Heart hub 11 is connected with the motor shaft of motor 20.
Blade 12 is extended radially outward from center hub 11.Multiple blades 12 are distributed around central axis 101.It is specific and
Speech, multiple blades 12 are integrally formed with center hub 11 as a part.
The definition of blade 12 is useful for generating the pressure face 122 of wind and suction surface 121.Pressure face 122 and suction surface 121 make leaf
Piece 12 forms wing shapes.
Suction surface 121 and pressure face 122 compared with both ends cross into leading edge 123 and back edge 124 respectively.In fan 10
Rotation direction on, leading edge 123 is located at the front of back edge 124.
Leading edge 123 is defined as root leading edge point G1 close to the point of center hub 11.Point of the leading edge 123 away from center hub 11
It is defined as tip leading edge point G2.
Line that is vertical with central axis 101 by root leading edge point G1 and intersecting is defined as Y-axis line；Central axis 101 is fixed
Justice is z axis；Line that is vertical with Y-axis line and z axis and intersecting is defined as X-axis line.
As shown in figure 9, footpath of the projection for the plane that leading edge 123 is formed in X-axis line and Y-axis line along central axis 101
To extending outwardly and extend forward along the rotation direction of fan 10.Plane shown in Fig. 9, that is, X-axis line is formed flat with Y-axis line
Face.Direction in Fig. 9 shown in arrow is the rotation direction of fan 10.
The tangent line 102 and Y that are projected at the leading edge point G2 of tip for the plane that leading edge 123 is formed in X-axis line and Y-axis line
The angle δ 1 of axis is more than or equal to 5 degree and less than or equal to 15 degree.I.e. the angle δ 1 of tangent line 102 and Y-axis line is more than or equal to 5 degree and small
In equal to 15 degree.
As shown in Figure 10, footpath of the projection for the plane that leading edge 123 is formed in z axis and Y-axis line along central axis 101
Extend to the one side for extending outwardly and being entered the wind to fan 10.The plane that plane shown in Fig. 10, that is, Y-axis line is formed with z axis.
Direction in Figure 10 shown in arrow is the direction of motion of air-flow.Left side is the one side that fan 10 is entered the wind.Right side is 10 outlet air of fan
One side.Air is flowed from one lateral outlet air one side of air inlet.
The tangent line 103 and Y that are projected at the leading edge point G2 of tip for the plane that leading edge 123 is formed in z axis and Y-axis line
The angle δ 2 of axis is more than or equal to 15 degree and less than or equal to 25 degree.I.e. the angle of tangent line 103 and Y-axis line is more than or equal to 15 degree and small
In equal to 25 degree.
Specifically, the angle δ 1 of tangent line 102 and Y-axis line is more than or equal to 6 degree and less than or equal to 10 degree.Tangent line 103 and Y-axis
The angle of line is more than or equal to 20 degree and less than or equal to 22 degree.
For angle δ 1, it is gradually reduced simultaneously with reference to the following table air quantity that fan 10 is generated when 1 angles of angle δ increase
Its power consumption is gradually reduced.
| Design parameter | Air quantity increases | Power consumption increases |
| 1 angles of angle δ increase 5% | -0.92% | -2.80% |
| 1 angles of angle δ increase 10% | -2.40% | -6.50% |
| 1 angles of angle δ increase 15% | -3.92% | -10.35% |
For angle δ 2, with reference to the following table air quantity that fan 10 is generated when 2 angles of angle δ increase, gradually increase is simultaneously
Its power consumption gradually increases.
| Design parameter | Air quantity increases | Power consumption increases |
| 2 angles of angle δ increase 5% | 2.18% | 6.05% |
| 2 angles of angle δ increase 10% | 3.20% | 8.32% |
| 2 angles of angle δ increase 15% | 5.07% | 11.67% |
Angle δ 1 and angle δ 2 it is reasonable set enable to air quantity increase can keep simultaneously one it is relatively low
Power consumption.
More specifically, the bending angle θ at the blade root of blade 12 is more than or equal to 5 degree and less than or equal to 35 degree.Blade 12
Established angle β 0 at blade root is more than or equal to 30 degree and less than or equal to 60 degree.
| Design parameter | Air quantity increases | Power consumption increases |
| 1.5 times of established angle β 0 | 20.66% | 42.07% |
| 1.4 times of established angle β 0 | 18.65% | 35.03% |
| 1.3 times of established angle β 0 | 16.84% | 28.86% |
| 1.2 times of established angle β 0 | 14.86% | 22.74% |
| 1.1 times of established angle β 0 | 13.93% | 20.13% |
The increases of established angle β 0 can increase air quantity, while can also increase power consumption.The selection of bending angle θ and established angle β 0 take into account
Air quantity and power consumption.The setting of bending angle θ and established angle β 0 is so that fan 10 increases fan 10 in the case of lower power consumption
Air quantity.
The distance of the blade tip of blade 12 to central axis 101 is the radius L6 of the blade tip of blade 12；The blade root of blade 12 arrives
The distance of central axis 101 is the radius L7 of the blade root of blade 12；The radius L7 of the blade root of blade 12 and the blade tip of blade 12
The ratio between radius L6 is more than or equal to 0.5 and less than or equal to 0.6.Specifically, the radius of the blade tip of blade 12 be more than or equal to 40mm and
Less than or equal to 55mm.Further, the radius of the blade tip of blade 12 is more than or equal to 45mm and less than or equal to 49mm.
Chord length L8 at the blade root of blade 12 is more than or equal to 18mm and less than or equal to 21mm.
Leading edge flow inlet angle β 1 at the blade root of blade 12 is more than or equal to 25 degree and less than or equal to 45 degree；At the blade root of blade 12
Trailing edge efflux angles β 2 be more than or equal to 40 degree and be less than or equal to 85 degree.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of aerofoil fan, including：
Center hub is rotated around central axis；
Multiple blades extend radially outward from the center hub and surround the central axis distribution；Multiple blades with
The center hub is integrally formed；
The blade defines the suction surface and pressure face for being useful for generating wind；
The suction surface and the pressure face compared with both ends cross into leading edge and back edge respectively；The leading edge is described
It is located at the front of the back edge in the rotation direction of aerofoil fan；
The leading edge is defined as root leading edge point close to the point of the center hub；Point of the leading edge away from the center hub
It is defined as tip leading edge point；
Y-axis line is defined as by root leading edge point and central axis upright and the line that intersects；The central axis is defined as Z axis
Line；Line that is vertical with Y-axis line and z axis and intersecting is defined as X-axis line；
Projection the extending radially outwardly simultaneously along the central axis for the plane that the leading edge is formed in X-axis line and Y-axis line
Extend forward along the rotation direction of the aerofoil fan；
Projection the extending radially outwardly simultaneously along the central axis for the plane that the leading edge is formed in z axis and Y-axis line
The one side entered the wind to the aerofoil fan extends；
The tangent line being projected at the tip leading edge point and the Y for the plane that the leading edge is formed in X-axis line and Y-axis line
The angle of axis is more than or equal to 5 degree and less than or equal to 15 degree；
The tangent line being projected at the tip leading edge point and the Y for the plane that the leading edge is formed in z axis and Y-axis line
The angle of axis is more than or equal to 15 degree and less than or equal to 25 degree.
2. aerofoil fan according to claim 1, it is characterised in that：
The tangent line being projected at the tip leading edge point and the Y for the plane that the leading edge is formed in X-axis line and Y-axis line
The angle of axis is more than or equal to 6 degree and less than or equal to 10 degree；
The tangent line being projected at the tip leading edge point and the Y for the plane that the leading edge is formed in z axis and Y-axis line
The angle of axis is more than or equal to 20 degree and less than or equal to 22 degree.
3. aerofoil fan according to claim 1, it is characterised in that：
Established angle at the blade root of the blade is more than or equal to 30 degree and less than or equal to 60 degree.
4. aerofoil fan according to claim 1, it is characterised in that：
Bending angle at the blade root of the blade is more than or equal to 5 degree and less than or equal to 35 degree.
5. aerofoil fan according to claim 1, it is characterised in that：
The distance of the blade tip of the blade to the central axis is the radius of the blade tip of the blade；The blade root of the blade arrives
The distance of the central axis is the radius of the blade root of the blade；
The ratio between radius of blade tip of the radius of the blade root of the blade and the blade is more than or equal to 0.5 and less than or equal to 0.6.
6. aerofoil fan according to claim 5, it is characterised in that：
The radius of the blade tip of the blade is more than or equal to 40mm and less than or equal to 55mm.
7. aerofoil fan according to claim 1, it is characterised in that：
Chord length at the blade root of the blade is more than or equal to 18mm and less than or equal to 21mm.
8. aerofoil fan according to claim 1, it is characterised in that：
Leading edge flow inlet angle at the blade root of the blade is more than or equal to 25 degree and less than or equal to 45 degree；
Trailing edge efflux angles at the blade root of the blade is more than or equal to 40 degree and less than or equal to 85 degree.
9. a kind of hair-dryer, including：
Motor；
The aerofoil fan as described in claim 1-8 any one, by the motor-driven rotation；
Air passage portion is formed with the air passage for being oriented to the wind that the aerofoil fan generates；
The aerofoil fan is located in the air passage.
10. hair-dryer according to claim 9, it is characterised in that：
The rotating speed of the aerofoil fan is more than or equal to 20000rpm and less than or equal to 25000rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/802,139 US10405707B2 (en) | 2016-11-07 | 2017-11-02 | Blower |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016109767342 | 2016-11-07 | ||
| CN201610976734 | 2016-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071090A true CN108071090A (en) | 2018-05-25 |
| CN108071090B CN108071090B (en) | 2021-03-05 |
Family
ID=62159077
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710258243.9A Pending CN108071091A (en) | 2016-11-07 | 2017-04-19 | Hair-dryer |
| CN201710257324.7A Active CN108071090B (en) | 2016-11-07 | 2017-04-19 | Blower and axial fan thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710258243.9A Pending CN108071091A (en) | 2016-11-07 | 2017-04-19 | Hair-dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108071091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505790A (en) * | 2018-12-28 | 2019-03-22 | 哈尔滨工业大学 | The axial flow blower of high load capacity high throughflow ability |
| CN109578333A (en) * | 2018-09-17 | 2019-04-05 | 浙江卓远机电科技有限公司 | A kind of impeller composite structure |
| CN109723016A (en) * | 2019-01-17 | 2019-05-07 | 青岛开疆拓土农业装备科技有限公司 | A kind of garden management leaf automatic cleaning machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7294823B2 (en) * | 2019-02-13 | 2023-06-20 | 株式会社マキタ | Blower |
| WO2020166393A1 (en) | 2019-02-13 | 2020-08-20 | 株式会社マキタ | Blower |
| CN111749913A (en) * | 2019-03-27 | 2020-10-09 | 苏州宝时得电动工具有限公司 | Garden blower |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU619692A1 (en) * | 1974-04-01 | 1978-08-15 | Институт Горной Механики И Технической Кибернетики Им.М.М.Федорова | Axial fan runner |
| CN2523994Y (en) * | 2001-11-16 | 2002-12-04 | 石家庄市风机厂 | Reversal axial fan |
| CN1697932A (en) * | 2003-06-18 | 2005-11-16 | 三菱电机株式会社 | Blower |
| CN203452031U (en) * | 2013-03-29 | 2014-02-26 | 南京德朔实业有限公司 | Handheld air blower |
| CN204175643U (en) * | 2014-09-30 | 2015-02-25 | 美的集团武汉制冷设备有限公司 | Axial-flow windwheel and the air conditioner with it |
| CN105402160A (en) * | 2015-12-18 | 2016-03-16 | 珠海格力电器股份有限公司 | Fan, axial flow blade and vane for axial flow blade |
| CN205331054U (en) * | 2016-01-29 | 2016-06-22 | 邯郸市东方风机制造有限公司 | Axial -flow fan with many curved surfaces type blade |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5979364B2 (en) * | 2012-08-20 | 2016-08-24 | 日立工機株式会社 | Portable blower |
| CN203756564U (en) * | 2013-12-31 | 2014-08-06 | 常州格力博有限公司 | Axial flow blower |
| DE112014006478T5 (en) * | 2014-03-17 | 2016-12-29 | Husqvarna Ab | Motor unit cooling system |
| JP6368616B2 (en) * | 2014-10-21 | 2018-08-01 | 株式会社マキタ | Power blower working machine |
| CN204238153U (en) * | 2014-10-24 | 2015-04-01 | 常州格力博有限公司 | A kind of handle separate type axial-flow blower |
| CN205243890U (en) * | 2015-11-25 | 2016-05-18 | 常州格力博有限公司 | Direct current has brush axial compressor hair -dryer |
| CN105370592A (en) * | 2015-11-25 | 2016-03-02 | 常州格力博有限公司 | Direct-current brush axial flow blower |
| CN205378984U (en) * | 2015-11-25 | 2016-07-13 | 常州格力博有限公司 | Direct current axial compressor hair -dryer |
-
2017
- 2017-04-19 CN CN201710258243.9A patent/CN108071091A/en active Pending
- 2017-04-19 CN CN201710257324.7A patent/CN108071090B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU619692A1 (en) * | 1974-04-01 | 1978-08-15 | Институт Горной Механики И Технической Кибернетики Им.М.М.Федорова | Axial fan runner |
| CN2523994Y (en) * | 2001-11-16 | 2002-12-04 | 石家庄市风机厂 | Reversal axial fan |
| CN1697932A (en) * | 2003-06-18 | 2005-11-16 | 三菱电机株式会社 | Blower |
| CN203452031U (en) * | 2013-03-29 | 2014-02-26 | 南京德朔实业有限公司 | Handheld air blower |
| CN204175643U (en) * | 2014-09-30 | 2015-02-25 | 美的集团武汉制冷设备有限公司 | Axial-flow windwheel and the air conditioner with it |
| CN105402160A (en) * | 2015-12-18 | 2016-03-16 | 珠海格力电器股份有限公司 | Fan, axial flow blade and vane for axial flow blade |
| CN205331054U (en) * | 2016-01-29 | 2016-06-22 | 邯郸市东方风机制造有限公司 | Axial -flow fan with many curved surfaces type blade |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578333A (en) * | 2018-09-17 | 2019-04-05 | 浙江卓远机电科技有限公司 | A kind of impeller composite structure |
| CN109505790A (en) * | 2018-12-28 | 2019-03-22 | 哈尔滨工业大学 | The axial flow blower of high load capacity high throughflow ability |
| CN109505790B (en) * | 2018-12-28 | 2020-10-23 | 哈尔滨工业大学 | High-load high-through-flow-capacity axial flow fan |
| CN109723016A (en) * | 2019-01-17 | 2019-05-07 | 青岛开疆拓土农业装备科技有限公司 | A kind of garden management leaf automatic cleaning machine |
| CN109723016B (en) * | 2019-01-17 | 2020-09-08 | 林小芬 | Automatic descaling machine of garden management leaf |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108071091A (en) | 2018-05-25 |
| CN108071090B (en) | 2021-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108071090A (en) | Blower and axial fan thereof | |
| US10405707B2 (en) | Blower | |
| CN103154375B (en) | Hand-held electric blower | |
| CN104074155B (en) | Hand blower | |
| CN104074156B (en) | Handheld blower | |
| CN104074154B (en) | Hand-held hair drier | |
| CN104074157B (en) | Hand blower | |
| CN205134254U (en) | Blowing device | |
| TWM416690U (en) | Blade-free fan with flow guide structure | |
| CN104074159B (en) | Handheld blower | |
| CN203279986U (en) | Handheld type blower | |
| CN104074158B (en) | Handheld blower | |
| CN203452031U (en) | Handheld air blower | |
| CN106523401B (en) | 360 ° of fans of optimizing pneumatic performance | |
| CN106015090A (en) | Centrifugal fan blade, centrifugal fan and air conditioning device | |
| CN106351877B (en) | Centrifugation blade, blower fan system and air-conditioning device | |
| CN106062381A (en) | Fluid-feeding device and molding die | |
| CN202118011U (en) | Fan without blades | |
| CN203284755U (en) | Handheld type blower | |
| JP2020518761A (en) | Impeller, fan and motor | |
| CN103671240A (en) | Impeller and fan with impeller | |
| CN108138455A (en) | Garden hair-dryer | |
| CN208024591U (en) | Efficient multiple wing centrifugal fan | |
| CN209261908U (en) | Wind wheel, fan assembly and dryer | |
| CN204312401U (en) | One subtracts surge low-noise fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |