CN105442478B - Hair-dryer - Google Patents
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- CN105442478B CN105442478B CN201510622873.0A CN201510622873A CN105442478B CN 105442478 B CN105442478 B CN 105442478B CN 201510622873 A CN201510622873 A CN 201510622873A CN 105442478 B CN105442478 B CN 105442478B
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Abstract
The present invention relates to a kind of hair-dryer, including：Housing, the housing are provided with air inlet, and air enters from the air inlet；Motor, positioned at the enclosure interior；Aerofoil fan, rotated by the fan axis of motor drives edge one and produce air-flow；Blower, connect the housing and there is air outlet, the air-flow is blown out from the air outlet；Duct, for guiding air-flow to be moved to the air outlet；Wherein described housing in the blower with having gas channel, the gas channel is included from the air inlet to the upstream region the aerofoil fan and from the aerofoil fan to the downstream area the air outlet, the motor is arranged at the upstream region, and the duct is arranged at the downstream area.
Description
Technical field
The present invention relates to a kind of electric tool, especially a kind of hair-dryer.
Background technology
In daily life, hair-dryer is a kind of relatively common instrument, commonly used to clear up the ground such as garden or street
Face.
Such as a kind of hair-dryer of United States Patent (USP) US4880364 announcements, it includes housing, motor, fan and air channel.Fan revolves
Anger of changing the line of production stream, blows out from air channel.But the fan of this kind of hair-dryer, using centrifugal fan, air inlet is arranged in centrifugation wind
The lower section of fan, air outlet are arranged in the side of centrifugal fan.Due to the limitation of this body structure of centrifugal fan, this kind of hair-dryer blowout
Air quantity it is often little, therefore airflow effects are bad, it is impossible to meet the needs of user well.
A kind of it is using gasoline using hair-dryer of the engine as power, engine as United States Patent (USP) US5975862 is disclosed
Fuel still uses centrifugal fan as power, fan.But because the power ratio in general motor of engine is big, its can drive from
Heart fan is rotated with higher rotating speed, so as to export bigger air quantity and wind speed, so as to meet user's need to a certain extent
Ask.But due to the hair-dryer using gasoline engine, often operating noise is bigger, and is energized using gasoline, easily forms air
Pollution, it is not environmentally friendly enough.
As United States Patent (USP) US7739773 discloses a kind of hair-dryer, it includes housing, engine, fan and air channel.Fan
It is changed into aerofoil fan.For engine still using gasoline as power, machine drives aerofoil fan to work by transmission mechanism.But the engine cloth
Put apart from fan farther out, it appears the volume of whole hair-dryer is larger, does not meet the development trend of Portable light.And its power
Source remains as gasoline, and easily atmospheric environment is formed and polluted.
And for example some hair-dryers of in the market.Motor is located in housing, is rotated for driving fan.Air channel includes air inlet
And air outlet, air enter from air inlet, are blown out from air outlet.In order that air outlet blows out larger air quantity, fan is preferably
Aerofoil fan.The duct for the air-flow trend that guiding aerofoil fan is formed is additionally provided with air channel.In order that hair-dryer keeps compact
Structure, motor are arranged in duct.Had the dimensions because motor has in itself, duct also must be provided with enough sizes
Motor can be accommodated.But the operating efficiency that the drawbacks of thus bringing is whole hair-dryer reduces.
It is therefore desirable to prior art means are improved.
The content of the invention
In view of this, an object of the present invention is to provide a kind of hair-dryer for taking into account size and aspect of blowing efficiency.
To achieve the above object, the technical solution adopted in the present invention is：A kind of hair-dryer, including：Housing, the housing
Air inlet is provided with, air enters from the air inlet；Motor, positioned at the enclosure interior；Aerofoil fan, driven by the motor
It is dynamic to be rotated along a fan axis and produce air-flow；Blower, connect the housing and there is air outlet, the air-flow from it is described go out
Air port is blown out；Duct, for guiding air-flow to be moved to the air outlet；Wherein described housing in the blower with having air-flow
Passage, the gas channel are included from the air inlet to the upstream region the aerofoil fan and from the axle stream wind
Fan the downstream area between the air outlet, the motor is arranged at the upstream region, the duct be arranged at it is described under
Swim region.
Preferably, the air inlet, the motor, the aerofoil fan and the duct are successively along longitudinal arrangement.
Preferably, the air inlet and projection at least portion of the air outlet in the plane perpendicular to the fan axis
Divide and overlap.
Preferably, the gas channel crosses wind face including some perpendicular to airflow passes direction, the upstream region
The blade that the minimum area for crossing wind face is more than the aerofoil fan rotates the area for the plane of rotation to be formed.
Preferably, the upstream region includes the circle zone set around the motor, the minimum of the circle zone
Cross the area in wind face and the blade with the aerofoil fan rotate the plane of rotation to be formed area ratio scope 1.5 to 2.5
Between.
Preferably, the upstream region includes the transition region between the motor and the aerofoil fan along longitudinal direction
Domain, the inwall of the housing where the transitional region is smooth surface.
Preferably, the minimum area for crossing wind face of the transitional region and the blade of the aerofoil fan rotate turn to be formed
The scope of the area ratio in dynamic face is between 1.5 to 2.5.
Preferably, the fore-and-aft distance between the aerofoil fan and the motor is 25 millimeters.
Preferably, the hair-dryer also includes being used for the supporting construction for supporting the motor, and the supporting construction includes solid
Surely some supports of the outer ring of the housing, the inner ring for fixing the motor and the connection inner ring and outer ring are connected
Part.
Preferably, if passing through if the dry support arm radially extends and supply stream is provided between the adjacent dry support arm
Circulating area.
Preferably, the inner ring has the centre bore that the motor shaft passes through and the muscle radially extended from the centre bore
Bar.
Preferably, the sectional area of the motor along longitudinal direction and the gas channel along the ratio between sectional area of longitudinal direction for 0.6~
0.7。
Preferably, the air inlet is provided with dismountable safety guard.
Preferably, the safety guard is provided with labyrinth passage so that travel path of the air along bending enters housing
It is internal.
Preferably, the labyrinth passage includes the first passage of Longitudinal extending and is at an angle of with the first passage to set
Second channel.
To achieve the above object, present invention additionally comprises a kind of technical scheme to be：A kind of suction and blowing device, selectively in blowing mould
Worked under formula or suction mode, including：Housing, the housing are provided with air inlet, and air enters from the air inlet；Motor,
Positioned at the enclosure interior；Aerofoil fan, rotated by the fan axis of motor drives edge one and produce air-flow；Dry component with
And air draught component, connectable to the housing；Under blowing mould formula, the blowing component is connected with the housing, the axle stream wind
Fan rotation, under suction mode, the air draught component is connected with the housing；Wherein described blowing component includes blower and culvert
Road, the blower can connect the housing and have air outlet, and the air-flow is blown out from the air outlet；The duct is used for
The air-flow is guided to be moved to the air outlet, the housing in the blower with having gas channel, the gas channel
Including from the air inlet to the upstream region of the aerofoil fan and from the aerofoil fan to the downstream of the air outlet
Region, the motor are arranged at the upstream region, and the duct is arranged at the downstream area.
To achieve the above object, present invention additionally comprises a kind of technical scheme to be：A kind of hair-dryer, including：Housing, the shell
Body is provided with air inlet, and air enters from the air inlet；Aerofoil fan, operationally rotated along a fan axis and produce gas
Stream；Motor, for driving the aerofoil fan to rotate；Blower, connect the housing and there is air outlet, the air-flow is from institute
State air outlet blowout；Duct, for guiding the air-flow to be moved to the air outlet；The motor is located in the housing, institute
Motor and the duct are stated respectively positioned at the relative both sides of the aerofoil fan, the direction of the air inlet and the fan axis
Angle is set.
To achieve the above object, present invention additionally comprises a kind of technical scheme to be：A kind of hair-dryer, including：Housing, the shell
Body is provided with air inlet, and air enters from the air inlet；Aerofoil fan, operationally rotated along a fan axis and produce gas
Stream；Motor, for driving the aerofoil fan to rotate；Blower, connect the housing and there is air outlet, the air-flow is from institute
State air outlet blowout；Duct, for guiding the air-flow to be moved to the air outlet；The hair-dryer also includes storing the electricity
The electric machine casing of machine, the electric machine casing are located at the outside of the housing, are provided with the electric machine casing and are used to cool down the electricity
The cooling fan of machine.
Preferably, the electric machine casing deviates the fan axis and set so that the axis of the motor and the fan
Axis is misaligned.
Preferably, be provided with transmission mechanism between the fan and the motor, the transmission mechanism include driving belt or
Person's gear train.
Preferably, the electric machine casing is set along fan axis so that the axis of the motor and the fan axis weight
Close.
Compared with prior art, beneficial effects of the present invention are：Motor is arranged on upstream region, and duct is arranged on downstream
Region, the selection of motor can not be limited by duct size, and so as to further improve aspect of blowing efficiency, and motor is located at air channel
In, there is good radiating effect.
Brief description of the drawings
Purpose, technical scheme and the beneficial effect of invention described above can realize this hair by following
The detailed description of bright specific embodiment, describe in combination with accompanying drawing and clearly obtain.
Identical label and symbol in accompanying drawing and specification are used to represent identical or equivalent element.
Fig. 1 is the overall schematic of the hair-dryer of first embodiment of the invention.
Fig. 2 is the decomposing schematic representation of the internal structure of the hair-dryer in Fig. 1.
Fig. 3 is the schematic diagram of the internal structure of the hair-dryer in Fig. 1.
Fig. 4 is the enlarged diagram of the B area of the hair-dryer in Fig. 3.
Fig. 5 is the schematic perspective view of the first support of the hair-dryer in Fig. 1.
Fig. 6 is sectional view of the duct of the hair-dryer in Fig. 3 along straight line AA.
Fig. 7 is the schematic perspective view of the fan of the hair-dryer in Fig. 2.
Fig. 8 is the diagrammatic cross-section that the hair-dryer in Fig. 1 is in working condition.
Fig. 9 is the top view of the hair-dryer shown in Fig. 8.
Figure 10 is the schematic diagram of the air outlet of the hair-dryer in Fig. 1.
Figure 11 is the enlarged diagram in the C regions of hair-dryer in Figure 10.
Figure 12 is the overall schematic of the hair-dryer of second embodiment of the invention.
Figure 13 is the schematic diagram of the hair-dryer of third embodiment of the invention.
Figure 14 is the schematic diagram of the hair-dryer of fourth embodiment of the invention.
Figure 15 is the schematic diagram of the hair-dryer of fifth embodiment of the invention.
100th, hair-dryer 101, longitudinal axis 102, blowing component
103rd, air draught component 200, housing 201, upstream region
202nd, downstream area 203, air inlet 204, circle zone
205th, transitional region 206, safety guard 207, labyrinth passage
208th, first passage 209, second channel 300, motor
301st, motor shaft 302, stator 303, rotor
304th, electric machine casing 305, cooling fan 306, transmission mechanism
400th, duct 401, deflection cone 402, stator blade
403rd, duct outer cover 404, protective cover 405, shell
406th, cone-shaped cavity 407, fixed cover 500, fan
501st, fan axis 502, blade 503, circumferential connect band
504th, wheel hub 600, blower 601, air outlet
602nd, gas channel 700, handle 701, controlling switch
703rd, grip part 707, first axle 709, second axis
800th, supporting construction 801, first support 802, second support
803rd, connector 804, fixed cell 805, inner ring
806th, outer ring 807, support member 808, the first circulating area
809th, perforation 810, reinforcement 811, the second circulating area
S1, plane of rotation area S2, air-out open area S4, circle zone cross wind area
S5, transitional region cross wind area D1, fan diameter D2, hub diameter
α, inwall angle β, outer wall angle G, center of gravity
L, fore-and-aft distance
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
It is the hair-dryer 100 of first embodiment of the invention shown in Fig. 1 to Fig. 7.Hair-dryer 100 includes housing 200, motor
300th, duct 400, fan 500, blower 600.Wherein, motor 300, duct 400, fan 500 are arranged in housing 200.
Blower 600 connects housing 200.Blower 600 and the connection of housing 200 form gas channel 602.Blower 600 is provided with out
Air port 601, air is moved to air outlet 601 from gas channel 602 and blown out from air outlet 601, for blowing away falling on ground
Leaf, rubbish.Motor 300 has motor shaft 301, and motor shaft 301 is connected with fan 500 and driving fan 500 rotates so that fan
500 can rotate around its fan axis 501, form air-flow so as to drive air to move, as shown by the arrows in Figure 3.Certainly, motor
Axle 301 can also connect fan 500 by transmission mechanism.Transmission mechanism can be the common structures such as epicyclic train..Air-flow leads to
Road 602 includes upstream region 201 and downstream area 202, and the direction from upstream region 201 to downstream area 202 is defined as longitudinal direction.
Air substantially longitudinally moves.And upstream region 201 is located at longitudinal side of fan 500, downstream area 202 is located at fan
500 longitudinal opposite side.Hair-dryer 100 defines the longitudinal axis 101 extended longitudinally.In the present embodiment, fan 500
Preferably aerofoil fan.As shown in fig. 7, aerofoil fan includes wheel hub 504 and blade 502.The blade 502 of aerofoil fan rotates shape
Into air-flow moving direction be fan axis 501 bearing of trend, that is to say, that fan axis 501 equally extends longitudinally, and
And overlapped with longitudinal axis 101.The blade 502 of aerofoil fan is rotated and forms plane of rotation, and the plane of rotation vertical longitudinal axis 101 is set
Put.Duct 400 is set compared to blower 600 closer to fan 500.It is additionally provided with air inlet 203 on housing 200, air is from entering
Air port 203 enters the inside of housing 200.In this preferred embodiment, air inlet 203, motor 300, fan 500 and duct
400 successively along longitudinal arrangement.Wherein, air inlet 203 and projection of the air outlet 601 in perpendicularly to the longitudinal axis 101 plane
At least partly overlap.Upstream region 201 refers to from air inlet 203 to the region plane where the center of fan 500, downstream
Region 202 refers to from plane where the center of fan 500 to the region air outlet 601.When fan 500 carries out rotary work
When, extraneous air enters the inside of housing 200 from air inlet 203, after passing sequentially through fan 500 and duct 400, from positioned at
The air outlet 601 of blower 600 is blown out.
As is illustrated by figs. 11 and 12, air inlet 203 is provided with safety guard 206 dismountable with housing 200.Safety guard
206 are removably fixedly connected by bolt with housing 200.The effect of safety guard 206 is that the finger for preventing user is extend into
The inside of housing 200, so as to produce danger.Safety guard 206 includes some pieces of eyed structures.It is provided between every piece of eyed structure
Reinforcement is to lift the firmness of whole safety guard 206.Other safety guard 206 is overall, and also simultaneously on-plane surface is set, but shape
Into the air intake surface of an arc.In a preferred embodiment, those eyed structures are labyrinth passage 207, that is to say, that air leads to
Not along straight-line pass when crossing the labyrinth passage, but air produces bending on travel path.The benefit so designed increases
Air is added to pass through total traveling distance of safety guard 206, noise transmission path also accordingly increases when bypassing air through, and reduces and makes an uproar
The generation of sound.Test proves that noise is allowd to reduce by 4 to 6 decibels using the safety guard 206 of the structure.The labyrinth
Formula passage 207 includes the first passage 208 and second channel 209 at least connecting setting at an angle.In preferred embodiment
In, the angle is obtuse angle.One end connection of first passage 206 is extraneous, other end connection second channel 209.Second channel 209
One end connects first passage 208, and the other end is communicated to the inside of housing 200.Air is introduced into first passage 208 from the external world, so
Afterwards again by second channel 209, the inside of housing 200 is entered finally into.In a preferred embodiment, first passage 208 is substantially
Extend longitudinally, and second channel 209 is set with respect to fore-and-aft tilt.
Also there is the handle 700 for operator's gripping effect on housing 200.Preferably, control is additionally provided with handle 700
Switch 701.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 6, duct 400 is located at downstream area 202.Compared to blower 600, duct 400
Closer to fan 500.The effect of duct 400 is to guide air-flow caused by fan 500 to be moved to the air outlet 601 of blower 600.
And make air-flow moves towards centralized and unified, air-out effect is lifted.Duct 400 includes deflection cone 401, houses deflection cone 401
Duct outer cover 403 and the stator blade 402 between deflection cone 401 and duct outer cover 403.Deflection cone 401 is approximately along air-flow
Moving direction set.Deflection cone 401 is located at the center of gas channel 602, and deflection cone 401 is included in shell 405 and shell 405
The cone-shaped cavity 406 in portion.Airflow space is formed between the shell 405 and duct outer cover 403 of deflection cone 401, the circulation is empty
Between vertical longitudinal axis 101 cross section it is generally annular.Stator blade 402 is located in the annular free air space, and greatly
Cause compartment of terrain distribution.The interval between stator blade 402 supplies airflow two-by-two.In the present embodiment, the quantity of stator blade 402 is
7.But the present invention is not limited the quantity of stator blade 402.In a preferred embodiment, stator blade 402 is with respect to gas
Stream moving direction is obliquely set, and inclined angle is preferably 5 degree to 15 degree.Stator blade 402 is diametrically at least fixed
Connect one of deflection cone 401 and duct outer cover 403.In a preferred embodiment, the volume of deflection cone 401 is less than motor 300
Volume.That is, motor 300 can not be arranged in deflection cone 401.And duct outer cover 403 is contained in housing 200, and with
Housing 200 is fixedly connected.In a preferred embodiment, duct 400 also includes protective cover 404, the uprush of protective cover 404 trend
Set, it is vertical in other words longitudinally disposed.The effect of protective cover 404 is to prevent foreign matter from entering duct 400.Duct 400 and housing 200
Between be additionally provided with fixed cover 407 for fixing duct 400 and the relative position of housing 200.
As shown in Figure 8 and Figure 9, in the present embodiment, motor 300 is arranged to alternating current generator 300.It is of course also possible to it is arranged to
Direct current generator 300, correspondingly, battery bag (not shown) is set, battery bag is electrically connected with motor 300 on housing 200 or handle 700
Connect.Further, motor 300 is arranged to DC brushless motor 300.
Handle 700 has the grip part 703 gripped for operator.In addition, being additionally provided with controlling switch 701 on handle 700, control
System switch 701 electrically connects with motor 300, with the opening and closing of controlled motor 300.Preferably, controlling switch 701 is also controllable
The rotating speed of motor 300.
Blower 600 extends along the lengthwise of first axle 707, and grip part 703 extends along the lengthwise of second axis 709, first axle
Line 707 and second axis 709 define the first plane, and the projection of the center of gravity G of hair-dryer 100 in the second plane is located at grip part
In 703 drop shadow spread in the second plane, the second plane is parallel to second axis 709, and perpendicular to the first plane.In this way,
When operation is blowed in gripping grip part 703, the second axis 709 of usual grip part 703 is roughly parallel to horizontal plane, now
Projections of the center of gravity G of hair-dryer 100 in the second plane is positioned at grip part 703 in the drop shadow spread in the second plane so that
Operator and the power that need not additionally overcome hair-dryer 100 to deflect, operate as snug as a bug in a rug, avoid the fatigue to work long hours.
In the present embodiment, motor 300 is heavier, and accounting is larger in the main screw lift of hair-dryer 100, dries in addition
Pipe 600 is used relatively gently and than relatively thin material, so that by the way that motor 300 is arranged at outside duct 400, and it is located at handle 700
The lower section of grip part 703, so as to ensure that projections of the center of gravity G of hair-dryer 100 in the second plane is located at grip part 703 second
In drop shadow spread in plane so that hair-dryer 100 operates comfortably.
In addition, projections of the center of gravity G of hair-dryer 100 in the 3rd plane is located at throwing of the grip part 703 in the 3rd plane
In the range of shadow, the 3rd plane is parallel to first axle 707, and perpendicular to the first plane.In this way, it also ensure that when gripping grip part
703 when being blowed operation so that the operator and power that need not additionally overcome hair-dryer 100 to deflect, operation as snug as a bug in a rug, are kept away
The fatigue to work long hours is exempted from.
First axle 707 is not more than 25 degree with the angle of second axis 709.When behaviour is blowed in operation hair-dryer 100
When making, the aspect of blowing efficiency of the first axle 707 of blower 600 with the horizontal the angle no more than 25 degree, now hair-dryer 100
It is higher.Therefore, it is arranged such, it is ensured that during blowing operation, the second axis 709 and horizontal plane of grip part 703 are almost parallel, from
And while the hair-dryer 100 is ensured high aspect of blowing efficiency, operation is more comfortable, further avoid the fatigue to work long hours.
Preferably, substantially 10 degree of first axle 707 and the angle of second axis 709.When operation hair-dryer 100 is carried out
During blowing operation, the blowing of the first axle 707 of blower 600 with the horizontal the angles, now hair-dryer 100 of substantially 10 degree
Efficiency highest.Therefore, it is arranged such, it is ensured that during blowing operation, the second axis 709 and horizontal plane of grip part 703 are substantially flat
OK, so that while hair-dryer 100 ensures higher aspect of blowing efficiency, operation is more comfortable.
In the present embodiment, when first axle 707 is with the horizontal angle no more than 25 degree, the center of gravity G of hair-dryer 100
Projection in the horizontal plane is in the drop shadow spread of grip part 703 in the horizontal plane.It is arranged such, it is ensured that blowing operation
When, while hair-dryer 100 ensures high aspect of blowing efficiency, rapid operation and comfortable avoids the fatigue to work long hours.
Further, when first axle 707 is with the horizontal 10 degree of angles, the center of gravity G of hair-dryer 100 is in the horizontal plane
Projection in the drop shadow spread of grip part 703 in the horizontal plane.
Preferably, the center of gravity G of hair-dryer 100 is between fan and motor 300.
Further, projections of the center of gravity G of hair-dryer 100 in the second plane is located at motor 300 in the second plane
In drop shadow spread.
In addition, projection at least partly weight of projection of the motor 300 in the second plane with grip part 703 in the second plane
It is folded.In this way, it can be further ensured that projections of the center of gravity G of hair-dryer 100 in the second plane is located at grip part 703 in the second plane
On drop shadow spread in.So that hair-dryer 100 is compact-sized, and operate comfortable.
As shown in Figure 3 and Figure 7, the fan 500 of hair-dryer 100 preferably uses aerofoil fan, aerofoil fan phase in the present invention
Than more preferable airflow effects can be provided in centrifugal fan.Fan 500 is arranged between motor 300 and duct 400, fan
500 fan axis 501 overlaps with the center line of blower 600.There is gas channel 602 in housing 200 and blower 600,
Gas channel 602 is including the upstream region 201 from air inlet 203 to fan 500 and from aerofoil fan 500 to air outlet 601
Downstream area 202, motor 300 is arranged at upstream region 201, and duct 400 is arranged at downstream area 202.
Motor 300 is arranged on upstream region 201 in housing 200, and motor 300 has motor shaft 301, motor shaft 301 and wind
Fan 500 connection and can driving fan 500 rotated around its fan axis 501, so as to drive air from upstream region 201 downstream
The movement of region 202 forms air-flow.Fan 500 includes the wheel hub 504 being coupled with motor shaft 301 and multiple is arranged in the present embodiment
Blade 502 on wheel hub 504, it is of the invention without strict restriction for the particular number of blade 502.Fan 500 also includes week
To connect band 503, circumferential connect band 503 is around all blades 502 of connection.The setting of circumferential connect band 503, on the one hand can increase
Add the rigidity of fan 500, extend the service life of fan 500, prevent breakage etc. occur now using a period of time aft-fan 500
As；On the other hand the stability after the high-speed rotation of fan 500 can be increased, contributes to after reducing the high-speed rotation of fan 500 to produce
Noise.
Table 1 list hair-dryer 100 test before the installation circumference connect band 503 that measures with circumferential connect band 503 is installed after
Fan 500 operate when produce noise level data.Before circumferential connect band 503 is installed as can be seen from Table 1, measured in front
Four groups of noise datas average value be 100 decibels；And after the circumferential connect band 503 of corresponding installation, measured in front four groups
The average value of noise data is 96.8 decibels.In addition, before installing circumferential connect band 503 as can also be seen from Table 1, measured at rear
Four groups of noise datas average value be 99.4 decibels；And after the circumferential connect band 503 of corresponding installation, measured at rear four groups
The average value of noise data is 98.2 decibels.From data it can be seen that during the installation circumferential aft-fan 500 of connect band 503 operating
The noise that different azimuth measures is obtained for reduction.
Table 1
As shown in fig. 7, the diameter of fan 500 is less than 88 millimeters in the present invention, the output speed of motor shaft 301 is more than
21000 revs/min.Preferably, the fan diameter D1 of fan 500 is arranged within the scope of 50 millimeters -88 millimeters, in the present embodiment,
The fan diameter D1 of fan 500 is set as 82 millimeters.
The a series of experiments number that hair-dryer 100 is related to fan diameter, motor speed, air quantity and wind speed has been measured during design
According to.In experiment motor speed we have selected more than 21000 revs/min, be arranged to 25000 revs/min, corresponding measure in selection not
The numerical value of air quantity and wind speed caused by the fan 500 of same diameter.Shown in data, when fan diameter is more than 88 millimeters of settings
When, higher air quantity and wind speed can be obtained, but the consequence brought simultaneously is, the power consumption of hair-dryer 100 can be higher, is surveyed in experiment
The data obtained are that power consumption alreadys exceed 1011W, and when using battery bag as the energy, the operable time of hair-dryer 100 is serious
Shorten.Therefore in order to reduce the power consumption of blower 100, the fan diameter of hair-dryer 100 is preferably set smaller than 88 millimeters.
When fan diameter is set in the numerical value less than 88 millimeters, with the reduction of numerical value, the power consumption of blower 100 is being gradually reduced,
But the consequence brought is simultaneously, the air quantity and wind speed of blower 100 also totally show the trend being gradually reduced.In fan diameter
When being set smaller than equal to 50 millimeters, the airflow value that measures is less than or equal to 200CFM accordingly, and the air speed value phase measured
That answers is less than or equal to 70MPH, and now the airflow effects of hair-dryer 100 are poor, and air-out is less efficient.Therefore the same of power consumption is being considered
When, the airflow effects of hair-dryer 100 are taken into account, fan diameter is preferably set within the scope of 50 millimeters -88 millimeters.Data, which are shown, to be worked as
Fan diameter be set in 50 millimeters -82 millimeters within the scope of when, with the increase of fan diameter, air quantity, the wind speed of hair-dryer 100
And power consumption is all increasing, when fan diameter is set as 82 millimeters, air quantity, wind speed and the power consumption of hair-dryer 100 all reach one
Maximum.When fan diameter is set within the scope of 82 millimeters -88 millimeters, with the increase of fan diameter, hair-dryer 100
Air quantity, wind speed and power consumption are equally all increasing, when fan diameter is set as 88 millimeters, air quantity, wind speed and the work(of hair-dryer 100
Consumption equally reaches a maximum.Fan diameter is in 50 millimeters -82 millimeters of this section of section, with the increase of fan diameter, wind
Speed, air quantity and power consumption are all being lifted.And fan diameter is in 82 millimeters -88 millimeters of this section of section, with the increase of fan diameter,
Wind speed and air quantity are still being lifted, but now power consumption is substantially improved.Generally speaking, this section of fan diameter at 50 millimeters -88 millimeters
Section, with the increase of fan diameter, wind speed, air quantity and power consumption are all in the trend increased, but when diameter is more than 82 millimeters, wind
Speed, the increasing degree of air quantity are not very big, and now power consumption has and significantly increased.After fan diameter is more than 82 millimeters, greatly
The increase power consumption of amplitude only brings the increase of wind speed and air quantity by a small margin, therefore most the diameter of fan is set at last after considering
It is set to 82 millimeters.Such design can be such that hair-dryer 100 controls while lower power consumption, increase the air quantity of hair-dryer 100
And wind speed, and finally obtain higher aspect of blowing efficiency and more preferable airflow effects.
Furthermore it is preferred that, the output speed of motor shaft 301 is set within the scope of 21000 revs/min -50000 revs/min.Carry
The rotating speed of high motor shaft 301, and reduce the size of fan 500 simultaneously, form the layout of high rotating speed driving small fan.It is such to set
Meter can reduce power consumption so that in the case where meeting to ensure the single dc-battery bag time, wind speed be improved, so as to obtain higher blowing
Efficiency and more preferable airflow effects.
The hub diameter D2 of the wheel hub 504 of fan 500 and the fan diameter D1 of fan 500 ratio exist in the present embodiment
Within the scope of 0.1-0.7.The hub diameter D2 and fan diameter D1 of in general fan 500 ratio are otherwise known as hub ratio, hereafter
Directly it is illustrated with hub ratio.In the case of the external diameter of fan 500 is fixed-size, hub ratio determines wheel hub 504 and leaf
Proportioning between piece 502, and finally influence whether the air-out situation of fan 500.According to obtained by hub ratio and air quantity relationship experiments
One group of data, it is 24000 revs/min that it is constant, which to survey timing setting motor speed, and the minimum wind sectional area of crossing of upstream region 201 is
7190MM2, that is to say, that from air inlet 203 to the minimum cross-sectional area that can take the section that air-flow passes through fan 500 in
For 7190MM2, the fan diameter D1 of fan 500 is set as 82 millimeters, determines common hub ratio and wind in such a situa-tion
The data relationship of amount.Data are shown, with the increase of hub ratio, air quantity is gradually reduced, and are preferably blown to obtain hair-dryer 100
Wind effect is, it is necessary to hair-dryer 100 can provide a larger air quantity, and when selected hub ratio is 0.1-0.3, air quantity can be with
A larger numerical value is obtained, but the consequence brought is that wheel hub is too small, and relative vane is larger, causes to rotate caused noise
It is larger, and the less stable of fan 500, it is very easy to damage.And hub ratio is selected not only to obtain one in 0.3-0.5
The stability of individual higher air quantity and fan 500 is preferably and noise caused by rotation is also smaller.In this specific embodiment
Hub ratio is arranged to 0.34.Other numerical value in 0.1-0.7 number ranges can use, especially in the range of 0.3-0.5
Numerical value.
Fan 500 is arranged in housing 200, and fan 500 includes the wheel hub 504 being coupled with motor shaft 301 and multiple installations
Blade 502 on wheel hub 504, the outer edge of the blade 502 of fan 500 are additionally provided with circumferential connect band 503.Circumferential connect band
Beeline between 503 and the inwall of housing 200 is 0 millimeter to 5 millimeters (not including end points).Preferably, circumferential connect band 503
Beeline between the inwall of housing 200 is set as 1 millimeter, and such design can fill ensureing fan 500 with housing 200
More preferable airflow effects are provided while with condition.
Hair-dryer 100 is disposed with motor 300, fan along longitudinal direction from upstream region 201 to downstream area 202 in the present embodiment
500th, duct 400 and blower 600 etc..Air inlet 203 is additionally provided with housing 200, air inlet 203 is located at upstream region 201, and
Set close to fan 500, the end of blower 600 is provided with the air outlet 601 that supply stream is finally blown out.When fan 500 is in electricity
When rotary work is carried out under the driving of arbor 301, extraneous air is entered inside housing 200 from air inlet 203, is then passed through
The inside of duct 400 and blower 600, blown out from the air outlet 601 positioned at downstream area 202.502 turns of the blade of fan 500
Dynamic to form an annular plane of rotation, plane of rotation area is S1, and the area that the area of fan 500 subtracts wheel hub 504 is exactly to rotate
Face area S1.The end of blower 600 is provided with air outlet 601, the area S2 of air outlet 601 and plane of rotation area S1 area ratio
Within the scope of 0.75-1.1, the flow behavior of air-flow can be improved so as to improve aspect of blowing efficiency, and hair-dryer by so setting
100 can keep higher wind speed, and the loss of wind speed is smaller.
Table 2 lists air-out open area/plane of rotation area of experiment gained and one group of data relationship of wind speed.Measuring
When, constant motor speed is 24000 revs/min, and the constant area of air outlet is set as 3957MM2, in motor speed and air outlet
Under conditions of constant area setting, the volume of data in table 2 is determined.It can be seen from the data in Table 2 that in air outlet face
When product/plane of rotation area is set in 0.75-1.1 number range, hair-dryer 100 can obtain a higher wind speed, and
The loss of wind speed is smaller.
Table 2
The air quantity of hair-dryer 100 is more than 370cfm in the present embodiment, and such air quantity design can more easily blow afloat grass
Heavier leaf and the leaf in crack for being dropped on level ground etc..
Hair-dryer 100 is arranged in housing 200 including housing 200 and blower 600, motor 300, fan 500 etc., blowing
Air outlet 601 is provided with pipe 600.Housing 200 is coupled with blower 600, so as to form air-flow can be allowed to pass through complete
Whole air channel.Inwall angle α between the inwall of housing 200 and the center line of blower 600 that are coupled with blower 600 is less than
Equal to 5 degree.Outer wall angle β between the outer wall of blower 600 and the center line of blower 600 that are coupled with housing 200 is less than
Equal to 5 degree.Such angle sets the sectional area for expanding outlet of the air-flow on housing 200, while air-flow enters blower
The sectional area of passage is in diminishing trend again after 600.Such layout, which is set, causes air-flow before blower 600 is entered
Air quantity increases, and has been got back enhancing into the wind speed after blower 600, is imitated so as to be correspondingly improved the blowing of hair-dryer 100
Rate, a more preferable airflow effects can be obtained.
As shown in Figures 2 and 3, motor 300 is located at upstream region 201.That is, motor 300 is located at the He of air inlet 203
Between fan 500, air inlet 203 and fan 500 are located at the both sides of motor 300.And motor 300 keeps certain with housing 200
Spatial joint clearance.The air entered from air inlet 203 can first pass through the gap between motor 300 and housing 200, then by fan
500 drive rotation, so as to produce air-flow.Because the position of the setting of motor 300 is between air inlet 203 and fan 500,
Air is all the time by that can produce extra cooling effect to motor 300 around motor 300.Therefore need not additionally set
Cooling fan, the radiating requirements of motor 300 are just met, and such design simplifies the structure of hair-dryer 100.Motor 300 is set
Put outside duct 400, the size of duct 400 can be made smaller, and the size of duct 400 will not be by the chi of motor 300
Very little limitation.In other words, the size limitation of motor 300 need not be considered further that when designing the size of duct 400, so as to enter
One step lifts the aspect of blowing efficiency of duct 400.The rotor 303 that motor 300 includes stator 302 and relative stator 302 rotates.Rotor
303 are set around the motor shaft 301 extended longitudinally.Motor shaft 301 encloses rotatable around its axis.The power connector wind of motor shaft 301
Fan 500, so as to drive fan 500 to be rotated around fan axis 501.In the present embodiment, fan 500 is directly installed on motor shaft
On 301, the axis of motor shaft 301 overlaps with fan axis 501.The motor 300 of the present embodiment compared to it is traditional using gasoline as
The engine of fuel, volume are smaller.Therefore vertical longitudinal cross-sectional area of motor 300 can be vertical more vertical than gas channel 602
To cross-sectional area it is smaller so that motor 300 can be placed in gas channel 602.In a preferred embodiment, motor 300
The ratio between vertical longitudinal cross-sectional area longitudinal cross-sectional area vertical with gas channel 602 be 0.6~0.7.
Because motor 300 is located at upstream region 201, motor 300 occupies certain space and volume, and air is along gas channel
602 movements, gas channel 602 cross wind face including several.Cross section of the wind face for gas channel 602 perpendicular to air-flow moving direction
Face.In order to ensure enough intakes, the minimum area for crossing wind face is more than the blade of fan 500 and rotated in upstream region 201
The area of the plane of rotation of formation, it can so ensure that endlessly air supplements the blade for touching fan 500, so as to ensure
Blowing is uninterrupted.Similar to Law of Barrel, upstream region 201 supplements depends on upstream to the size of the air capacity of fan 500
Minimum wind area excessively in domain 201.Even if therefore the wind area excessively elsewhere of upstream region 201 is big again, but wherein most
Small crosses the still indeclinable words of wind face area, and the intake of fan 500 would not change.Therefore, whole upstream region is lifted
201 minimum wind area of crossing could lift the intake of fan 500.From shown in Fig. 3 and Fig. 4, air enters from air inlet 203
After upstream region 201, because upstream region 201 does not stop close to the part of air inlet 203, therefore wind area is crossed in the part
The slewing area more than fan can be ensured.The part of wound motor 300 is defined as circle zone 204 in upstream region 201, by
In the stop for having motor 300, the wind area excessively of circle zone 204 can be smaller.However, to ensure that good aspect of blowing efficiency, ring
The minimum area crossed in wind area S4 along longitudinal direction around region 204 is designed as rotating more than the blade 502 of aerofoil fan and formed
Plane of rotation S1 area.By test, the minimum of circle zone 204 crosses wind area S4 and the blade 502 of aerofoil fan rotates
The ratio of the plane of rotation S1 areas of formation and the relation such as following table of airflow effects：
Table 3
As can be seen here, the plane of rotation S1 of the minimum area for crossing wind face S4 and aerofoil fan of circle zone 204 area it
For the scope of ratio when changing between 1.5 to 2.5, the effect promoting of blowing is notable.Minimum when circle zone 204 crosses wind face S4's
When the plane of rotation S1 of area and aerofoil fan area ratio is more than 2, wind speed and air quantity have lifting by a small margin.But now face
The ratio between product is more than 2, and the minimum of circle zone 204 crosses that wind area itself is bigger, and the volume of corresponding whole hair-dryer 1 also compares
Greatly.Therefore in the present embodiment, the plane of rotation S1 of the minimum area for crossing wind face S4 of circle zone 204 and aerofoil fan area
The ratio between be 1.8.On this condition, the air quantity that hair-dryer 100 is blown out can reach 376CFM, and wind speed can reach 100MPH, full
While the design requirement of the sufficient wind speed of hair-dryer 100 and air quantity, the volume of hair-dryer 100 is also in rational scope.
Upstream region 201 is except including circle zone 204, in addition to the mistake being located around between region 204 and fan 500
Cross region 205.Transitional region 205 is used to the air by circle zone 204 guide to fan 500.Air is from circle zone
204 enter transitional region 205, then again by contacting fan 500 after transitional region 205.In a preferred embodiment, transition
The inwall of housing 200 where region 205 is smooth surface, so as to effectively reduce damage of the air-flow by transitional region 205
Consumption.In addition, in order to ensure good aspect of blowing efficiency, the minimum of transitional region 205 crosses the ratio between wind area S5's and slewing area S1
Scope is between 1.5 to 2.5.Preferably, the ratio is 1.8.That is, transitional region 205 it is minimum cross wind area S5 with
The minimum of circle zone 204 crosses at least similar sizes of wind area S4, so as to ensure that a certain amount of air passes through transition region
Domain 205.In order to ensure that the minimum of transitional region 205 crosses wind area, be spaced between motor 300 and fan 500 certain longitudinal direction away from
From L, fore-and-aft distance L is 20 millimeters to 30 millimeters, it is preferable that the fore-and-aft distance L between motor 300 and fan 500 is 25 millis
Rice.
Hair-dryer 100 also includes being used for the supporting construction 800 for fixing motor 300 and housing 200.Supporting construction 800 is same
Sample is located at upstream region 201, supporting construction 800 include along the first support 801 of longitudinally spaced apart setting, second support 802 and
Along the connector 803 of longitudinally connected first support 801 and second support 802.In the present embodiment, connector 803 is bolt.Spiral shell
Bolt connects first support 801 and second support 802 along longitudinal direction.
It refer to Fig. 2, Fig. 3 and Fig. 5.On the one hand first support 801 itself is fixedly connected with housing 200, on the other hand again
Motor 300 is played a supportive role.First support 801, which is provided with the inside of fixed cell 804 and housing 200, fixes clamping, while the
One support 801 supports motor 300.First support 801 includes an inner ring 805 for being used to fix motor 300 and one is used for
The outer ring 806 of fixed shell 200.Inner ring 805 and outer ring 806 are arranged concentrically, further, inner ring 805 and the center of outer ring 806
On electrical axis.The outer surface of outer ring 806 is provided with fixed cell 804.The longitudinally wide of outer ring 806 is more than inner ring 805
It is longitudinally wide, inner ring 805 be contained in substantially outer ring 806 surround formed space.If it is provided between inner ring 805 and outer ring 806
Dry support member 807.Support member 807 radially extends approximately along electrical axis 501.One end connection outer ring of support member 807
806, other end connection inner ring 805.Several support members 807 are uniformly distributed circumferentially, and are also set around each support member 807
There is the first circulating area 808 for being easy to supplied gas to circulate.In a preferred embodiment, the quantity of support member 807 is 4, adjacent
Angle between two support members is 90 degree.It is additionally provided with inside inner ring 805 and accommodates the perforation 809 that motor shaft 301 passes through.Perforation
Several reinforcements 810 are provided between 809 and inner ring 805.The second Circulation Area of supplied gas circulation is also provided with around reinforcement 810
Domain 811.
In another embodiment as shown in figure 12, hair-dryer 100 is in addition to blowing function, also with air draught work(
Energy.Therefore the hair-dryer 100 selectively switches to blowing mould formula or suction mode.Hair-dryer 100 have can connect housing respectively
200 blowing component 102 and air draught component 103.Under blowing mould formula, blowing component 102 connects housing 200.Under suction mode, inhale
Wind component 103 connects housing 200.In the present embodiment, blowing component 102 includes blower 600 and duct 400.Fan 500 is excellent
Selection of land is also disposed in blowing component 102, and set close to duct 400.Motor 300 is still arranged in housing 200, is being blown
Under pattern, gas channel, motor 300 and the fan 500 in blowing component 102 are formed after dry component 102 and the connection of housing 200
Coordinate and produce blowing air-flow, now motor 300 is still in upstream region 201, and duct 400 is in downstream area 202.And work as
When the hair-dryer 100 is switched to suction mode, blowing component 102 disassembles from housing 200, changes and air draught component 103 is installed
Onto housing 200.Air draught component 103 forms the gas channel for air-breathing with housing 200.
It is similar with first embodiment in an other embodiment as shown in fig. 13 that, hair-dryer 100 include housing 200,
Motor 300, duct 400, fan 500 and blower 600.Motor 300, duct 400 and fan 500 are respectively positioned in housing 200.
In the present embodiment, motor 300, duct 400 and fan 500 are successively along longitudinal arrangement.Specifically, the axis and duct of motor 300
400 and fan 500 central axis overlap set.Fan 500 includes aerofoil fan, and aerofoil fan is located at motor 300 and contained
Between road 400.In other words, motor 300 and duct 400 are located at the relative side of fan 500, wherein 300, motor respectively
Upstream region when drying is performed in fan 500, and duct 400 is located at downstream area accordingly.Blower 600 connects housing
200.And the position that blower 600 connects housing 200 is located at downstream area, that is to say, that in the position with the homonymy of duct 400
Put.Unlike first embodiment, the position that air inlet 203 is located on housing 200 is different.In the present embodiment, fan 500
Axis do not pass through air inlet 203.That is, end of the air inlet 203 not at housing 200.Air inlet 203 is set
Put in the side of housing 200, that is, housing 200 is around the peripheral surface of the axis of fan 500.Air inlet 203 can be set
The opening circularized, can also part in the circumferential opening.So that the direction of air inlet 203 and the axis of fan 500
Between angle be present.Angle herein can be acute angle or obtuse angle.As shown in the arrow in Figure 13, enter from air inlet 203
Fan 500 is contacted after certain bending is produced to the air moving direction in housing 200.
In another embodiment as shown in figure 14, duct 400 and fan 500 are respectively positioned in housing 200.Motor
300 in electric machine casing 304, and electric machine casing 304 is not in housing 200.It is similar with a upper embodiment, air inlet
203 are still located on housing 200.And end or the sidepiece of housing 200 can be preferably located in.In the present embodiment, it is electric
Casing body 304 is positioned close to the position of the side of housing 200.Therefore the axis of the axis of motor 300 and fan 500 is not heavy
Close and set.In this embodiment, the air entered from air inlet 203 can't pass through motor 300.Also set in electric machine casing 304
There is the cooling fan 305 for cooling down motor 300.Cooling fan 305 individually produces cooling air-flow.Motor 300 and fan 500 it
Between be provided with transmission mechanism 306.Transmission mechanism 306 can include driving belt, gear train etc..
Similar with a upper embodiment in another embodiment as shown in figure 15, motor 300, which is accommodated in, to be independently arranged
Electric machine casing 304 in, electric machine casing 304 is provided separately with housing 200.Transmission mechanism is provided between motor 300 and fan 500
306.Unlike, electric machine casing 304 is positioned close to the position of the end face of housing 200.Therefore in this embodiment, motor
300 axis overlaps setting with the axis of fan 500.And air inlet 203 is arranged on housing 200, and can preferred status
In the end of housing 200 or sidepiece.In this embodiment, the air entered from air inlet 203 can't pass through motor 300.
Cooling fan 305 is also additionally provided with electric machine casing 304.Cooling fan 305 is used for the air-flow for producing cooling motor 300.With upper one
Embodiment is compared, and transmission mechanism 306 can simplify, but overall longitudinal length is long.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (16)
1. a kind of hair-dryer, including：
Housing, the housing are provided with air inlet, and air enters from the air inlet；
Motor, positioned at the enclosure interior；
Aerofoil fan, rotated by the fan axis of motor drives edge one and produce air-flow；
Blower, connecting the housing and there is air outlet, the air-flow is blown out from the air outlet,
Duct, for guiding air-flow to be moved to the air outlet；
It is characterized in that：The duct includes deflection cone and the stator blade between the fan and the air outlet, described
With having gas channel in the blower, the gas channel is included from the air inlet to the upper of the aerofoil fan housing
Swim region and be arranged at the upstream region, institute from the aerofoil fan to the downstream area of the air outlet, the motor
State duct and be arranged at the downstream area.
2. hair-dryer according to claim 1, it is characterised in that：The air inlet, the motor, the aerofoil fan with
The duct is successively along longitudinal arrangement.
3. hair-dryer according to claim 1, it is characterised in that：The air inlet is with the air outlet perpendicular to described
Projection in the plane of fan axis at least partly overlaps.
4. hair-dryer according to claim 1, it is characterised in that：The gas channel includes some perpendicular to airflow passes
Wind face is crossed in direction, and the blade that the minimum area for crossing wind face of the upstream region is more than the aerofoil fan rotates turn to be formed
The area in dynamic face.
5. hair-dryer according to claim 4, it is characterised in that：The upstream region includes what is set around the motor
Circle zone, the minimum area for crossing wind face and the blade with the aerofoil fan of the circle zone rotate the plane of rotation to be formed
Area ratio scope between 1.5 to 2.5.
6. hair-dryer according to claim 4, it is characterised in that：The upstream region includes being located at the motor along longitudinal direction
With the transitional region between the aerofoil fan, the inwall of the housing where the transitional region is smooth surface.
7. hair-dryer according to claim 6, it is characterised in that：The minimum area for crossing wind face of the transitional region and institute
State aerofoil fan blade rotate the plane of rotation to be formed area ratio scope between 1.5 to 2.5.
8. hair-dryer according to claim 6, it is characterised in that：Between the aerofoil fan and the motor longitudinal direction away from
From for 25 millimeters.
9. hair-dryer according to claim 1, it is characterised in that：The hair-dryer also includes being used to support the motor
Supporting construction, the supporting construction include being fixedly connected with the outer ring of the housing, the inner ring for fixing the motor and company
If connect the dry support arm of the inner ring and outer ring.
10. hair-dryer according to claim 9, it is characterised in that：If the dry support arm radially extends and adjacent institute
If the circulating area that supply stream passes through is provided between stating dry support arm.
11. hair-dryer according to claim 10, it is characterised in that：The inner ring has the center that the motor shaft passes through
Hole and the rib radially extended from the centre bore.
12. hair-dryer according to claim 1, it is characterised in that：The cross-sectional area of the motor and the gas channel
The ratio between cross-sectional area be 0.6~0.7.
13. hair-dryer according to claim 1, it is characterised in that：The air inlet is provided with dismountable safety guard.
14. hair-dryer according to claim 13, it is characterised in that：The safety guard is provided with labyrinth passage, makes
Obtain travel path of the air along bending and enter enclosure interior.
15. hair-dryer according to claim 14, it is characterised in that：The labyrinth passage includes the first of Longitudinal extending
Passage and the second channel with the angled setting of the first passage.
16. a kind of suction and blowing device, selectively worked under blowing mould formula or suction mode, including：
Housing, the housing are provided with air inlet, and air enters from the air inlet；
Motor, positioned at the enclosure interior；
Aerofoil fan, rotated by the fan axis of motor drives edge one and produce air-flow；
Blowing component and air draught component, connectable to the housing；
Under blowing mould formula, the blowing component is connected with the housing, the aerofoil fan rotation, under suction mode, the suction
Wind component is connected with the housing；
It is characterized in that：The blowing component includes blower and duct, and the blower can connect the housing and have
Air port, the air-flow are blown out from the air outlet；The duct is used to guide the air-flow to move to the air outlet, the culvert
Road includes deflection cone and the stator blade between the fan and the air outlet, and the housing in the blower with having
Gas channel, the gas channel are included from the air inlet to the upstream region of the aerofoil fan and from the axle stream wind
The downstream area of the air outlet is fanned, the motor is arranged at the upstream region, and the duct is arranged at the catchment
Domain.
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|---|---|---|---|
| CN201510622873.0A CN105442478B (en) | 2014-11-28 | 2015-09-25 | Hair-dryer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410708685 | 2014-11-28 | ||
| CN2014107086855 | 2014-11-28 | ||
| CN201420785782 | 2014-12-11 | ||
| CN201420785782X | 2014-12-11 | ||
| CN201510064165 | 2015-02-06 | ||
| CN201510064165X | 2015-02-06 | ||
| CN201510622873.0A CN105442478B (en) | 2014-11-28 | 2015-09-25 | Hair-dryer |
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| CN105442478B true CN105442478B (en) | 2017-12-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205134254U (en) * | 2015-09-18 | 2016-04-06 | 苏州宝时得电动工具有限公司 | Blowing device |
| CN108797480A (en) * | 2017-04-26 | 2018-11-13 | 苏州宝时得电动工具有限公司 | A kind of hair-dryer |
| CN108138455B (en) * | 2016-08-10 | 2020-09-18 | 苏州宝时得电动工具有限公司 | Garden blower |
| CN106108341A (en) * | 2016-08-15 | 2016-11-16 | 浙江诗杭电器有限公司 | A kind of hair-dryer |
| CN108684444A (en) * | 2017-03-16 | 2018-10-23 | 苏州宝时得电动工具有限公司 | Hair-dryer |
| CN107513970A (en) * | 2017-09-20 | 2017-12-26 | 天佑电器（苏州）有限公司 | A kind of blowning installation |
| CN107724311A (en) * | 2017-11-21 | 2018-02-23 | 常州格力博有限公司 | Hair-dryer |
| CN111336116A (en) * | 2018-12-18 | 2020-06-26 | 宝时得科技（中国）有限公司 | Blowing and suction fan |
| CN212717246U (en) * | 2019-03-27 | 2021-03-16 | 苏州宝时得电动工具有限公司 | Garden blower |
| WO2024032375A1 (en) * | 2022-08-12 | 2024-02-15 | 南京泉峰科技有限公司 | Air flow device and handheld hair dryer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7739773B2 (en) * | 2006-08-10 | 2010-06-22 | Andreas Stihl Ag & Co. Kg | Portable blower |
| DE102007037012B4 (en) * | 2006-08-10 | 2017-03-02 | Andreas Stihl Ag & Co. Kg | Blower unit and hand-held blower |
| CN201381997Y (en) * | 2009-04-24 | 2010-01-13 | 上海英格索兰压缩机有限公司 | Air compressor with noise enclosure |
| DE102010054841A1 (en) * | 2010-12-16 | 2012-06-21 | Andreas Stihl Ag & Co. Kg | Blower with an electric drive motor |
| FR2973815B1 (en) * | 2011-04-07 | 2014-08-29 | Pellenc Sa | AUTONOMOUS ELECTROPORTATIVE BLOWER WITH MODULAR AIR OUTPUT SPEED |
| CN104074154B (en) * | 2013-03-29 | 2016-02-10 | 南京德朔实业有限公司 | Hand-held hair drier |
| CN203866754U (en) * | 2013-12-27 | 2014-10-08 | 苏州宝时得电动工具有限公司 | Blast apparatus |
| CN105986555A (en) * | 2014-11-28 | 2016-10-05 | 苏州宝时得电动工具有限公司 | Air blower |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hair dryer Effective date of registration: 20230613 Granted publication date: 20171201 Pledgee: China Minsheng Bank Co.,Ltd. Zhangjiagang Sub branch Pledgor: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. Registration number: Y2023980043393 |
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