CN206815252U - A kind of hair-dryer - Google Patents
A kind of hair-dryer Download PDFInfo
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- CN206815252U CN206815252U CN201720448321.7U CN201720448321U CN206815252U CN 206815252 U CN206815252 U CN 206815252U CN 201720448321 U CN201720448321 U CN 201720448321U CN 206815252 U CN206815252 U CN 206815252U
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Abstract
The utility model discloses a kind of hair-dryer, and it includes：Casing, including main part and blower that is extraneous with connection and extending in the axial direction；Power set, the main part is connected to provide power for the hair-dryer；Fan component, driven by the power set and rotate and produce air-flow；The fan component is included in axially upper front and rear the first fan and the second fan set, the hair-dryer includes being supplied to less the first air intake passage and be supplied to less the second air intake passage that air-flow caused by second fan enters that air-flow caused by first fan enters, and is imported into the air-flow in first air intake passage and the air-flow entered in second air intake passage to blowing out in the blower and outwardly.Hair-dryer of the present utility model, it can not only realize the lifting of wind speed but also the lifting of air output can be realized.
Description
Technical field
It the utility model is related to power tools technology field, and in particular to a kind of hair-dryer.
Background technology
With the continuous expansion of city's green areas, park, highway, the greenbelt of public place are repaiied throughout various regions, lawn
Whole instrument is also widely used.Wherein hair-dryer belongs to a kind of conventional electric tool, and it is mainly used in purging fallen leaves, road surface ash
Dirt, ponding, accumulated snow and for forest extinguishing.During the use of hair-dryer, user is to wind under different use environments
Power and air quantity have different demands.It is typically more by setting in the prior art there is also various wind-force or the regulative mode of air quantity
Level fan concatenation realizes that the lifting of air quantity is realized in the increase of wind-force, or increase air-admitting surface.
Such as Chinese patent CN205934814U discloses a kind of hand-held axial-flow type hair-dryer, it includes upper shell, air-out
Cylinder, motor, duct and lower house, wherein motor is provided among the upper shell, for driving fan to rotate, the motor lower end
It is connected with lower house, is provided with some detachable ducts between the upper shell and lower house, fan and motor in the duct
Connection, the lower casing body side surface are surrounded by some boss a, and the chimney fan inwall upper end is provided with some Ls corresponding with boss a
Connected in star, it is connected for chimney fan with lower house.The hand-held axial-flow type hair-dryer, is designed using multistage fan, can be according to not
With need increase or decrease the series of fan, correspond to different air quantity specifications, without making new mould, significantly expansion
Usage scenario, it is applicable not only to purge lawn garbage, the fallen leaves on grass cuttings and fallen leaves, and park and road, it is powerful in addition
Wind-force can be used for forest extinguishing, road cleaning and blowing snow operation.
In above-mentioned patent document, the quantity by changing concatenation fan can change the pressure in hair-dryer pipeline, meet
The demand of different wind-force, but due to single air intake passage, the lifting to hair-dryer flow produces limitation, and traditional multistage wind
The hair-dryer of fan, when multistage fan works simultaneously, because the structure of the blade of every grade of fan, quantity are consistent, so will
Cause air-flow caused by fan by certain stop, and then influence the air-out efficiency of hair-dryer.
Utility model content
Therefore, problem to be solved in the utility model is to provide a kind of hair-dryer, the wind speed and air quantity of the hair-dryer
Can effectively it be lifted.
Technical scheme is used by the utility model solves prior art problem：
A kind of hair-dryer, it includes：
Casing, including main part and blower that is extraneous with connection and extending in the axial direction；
Power set, the main part is connected to provide power for the hair-dryer；
Fan component, driven by the power set and rotate and produce air-flow；
The fan component is included in axially upper front and rear the first fan and the second fan set, the hair-dryer and includes supplying
The first air intake passage and air-flow caused by being supplied to less second fan that air-flow caused by least described first fan enters enter
The second air intake passage entered, it is equal into the air-flow in first air intake passage and the air-flow entered in second air intake passage
Blow out in remittance to the blower and outwardly.
Preferably, driven jointly by first fan and second fan into the air-flow of first air intake passage
Produce, generation is operated alone by second fan in the air-flow into second air intake passage.
Preferably, the casing also includes the first duct portion being directed into air-flow in the blower, the main part
The first group of air inlet entered formed with the supply stream connected with the first duct portion, under hair-dryer is in running order,
At least part in the air-flow as caused by the driving jointly of first fan and second fan is from first group of air inlet
Enter in the first duct portion to form first air intake between first group of air inlet and second fan
Passage.
Preferably, the hair-dryer also includes second group of air inlet that supply stream is entered in second air intake passage,
Second group of air inlet is arranged between the first duct portion and the blower.
Preferably, the casing also includes the second duct portion being directed into air-flow in the blower, and described second contains
Road portion is at least partly socketed on the first duct portion, and second group of air inlet is formed at the first duct portion and described the
Between two duct portions, under hair-dryer is in running order, it is operated alone by second fan in caused air-flow at least
Part is entered in the second duct portion to form described second between second group of air inlet and second fan
Air intake passage.
Preferably, separate front and back is set first group of air inlet in the axial direction with second group of air inlet.
Preferably, first group of air inlet includes being formed at the air inlet through hollow shaft mouth of the main part and ring is set in the circumferential
In the radial direction air inlet of the main part.
Preferably, first fan is arranged in the first duct portion, and second fan is arranged on described second
In duct portion, the quantity of the first fan in the first duct portion is more than or equal to 1, in the second duct portion
The second fan quantity be more than or equal to 1.
Preferably, the first duct portion includes the first interface portion that penetrates in the axial direction and relative with first interface portion
Second interface portion, the first interface portion are connected with first group of air inlet, and the second interface portion is arranged on described
Between one fan and second fan, and the sectional area of the second interface portion diametrically is less than or equal to second fan
Sectional area diametrically.
Preferably, at least part in the air-flow of first air intake passage and second air intake passage is entered
Collecting at least partially between first fan and the second fan in air-flow, and blow to the blowing from second fan
In pipe.
Preferably, first fan and second fan are aerofoil fan.
Preferably, if first fan is located at the leaf in wheel hub circumference with second fan including wheel hub and girth
In the quantity of the blade of piece, first fan and first fan, the rotary inside diameter for rotating external diameter, blade of blade extremely
The quantity of few one blade for being different from corresponding second fan, rotation external diameter, the rotary inside diameter of blade of blade.
Preferably, the hub ratio of second fan is more than the hub ratio of first fan.
Preferably, the power set include motor and control circuit, the rotation of fan component described in the motor control
Motion, the power set are detachably installed with the casing.
Preferably, the blower is provided with a central axis in the axial direction, and the motor is around described in rotation axis driving
First fan rotates with second fan, and first fan, which is coaxially disposed and had with second fan, passes through motor band
The pivot center of dynamic rotation, the central axis of the blower, the rotation axis of the motor and first, second fan
The line of pivot center three overlaps.
Technical solutions of the utility model, at least have the following advantages that：
1. hair-dryer of the present utility model, by setting the air intake passage of superposition, (the first air intake passage and the second air intake lead to
Road), and fan is provided with each air intake passage, the wind speed of hair-dryer can be achieved by the superposition design of multiple duct multi-fan
Can effectively it be lifted with air quantity.
2. the structure of the fan of the utility model first and the structure of the second fan are designed to differ, specifically, the first wind
Fan and the quantity of the blade of the first fan, the rotation external diameter of blade, blade rotary inside diameter in it is at least one different from corresponding
The quantity of blade of the second fan, rotation external diameter, the rotary inside diameter of blade of blade.It is so designed that, can reduces by the first fan
With the second fan rotate caused by mutually air-flow stop, and then increase hair-dryer air-out efficiency.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the explosive view of hair-dryer of the present utility model；
Fig. 2 is the three-dimensional combination figure of the hair-dryer shown in Fig. 1；
Fig. 3 is the sectional view on A-A directions of the hair-dryer shown in Fig. 2；
Fig. 4 is the air flow direction schematic diagram of hair-dryer in the operating condition shown in Fig. 3；
Fig. 5 is the partial enlarged drawing of the hair-dryer shown in Fig. 3；
Fig. 6 is the schematic diagram of the right casing of the hair-dryer shown in Fig. 3；
Fig. 7 is the schematic diagram of the part-structure of the hair-dryer shown in Fig. 1；
Fig. 8 is the schematic diagram of the part-structure of the hair-dryer shown in Fig. 1；
Fig. 9 is the wind force distribution schematic diagram of the hair-dryer in single fan list air channel；
Figure 10 is the wind force distribution schematic diagram of the hair-dryer in double fan list air channel；
Figure 11 is the wind force distribution schematic diagram of the hair-dryer in the double air channels of double fan of the present utility model.
Description of reference numerals：
The left casings of 1-；2- motors；Starting taper after 3-；4- connecting bushings；5- collars；6- power transmission shafts；The fans of 7- first；8- first
Bearing；The first ducts of 9- portion；91- first interfaces portion；92- second interfaces portion；First group of air inlet of 10-；11- deflectors；12-
Two groups of air inlets；13- axle sleeves；14- second bearings；The fans of 15- second；16- hex nuts；17- locking nuts；18- second is contained
Road portion；19- blowers；20- bayonet locks；21- screws；22- necks；24- thermovents；25- air inlet through hollow shaft mouths；The radial directions of 26- first are entered
Air port；27- the second radial direction air inlets；Starting taper before 28-；The right casings of 29-；30- neck boss；31- output shafts；32- hex washers；
33- matrix pattern spacing preiections；40- main parts；100- hair-dryers；
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
As shown in Figures 1 to 8, the structural representation of the hair-dryer 100 disclosed for the utility model, hair-dryer are a kind of normal
The garden tool seen, for performing cleaning.Hair-dryer is mainly put together the leaf being scattered using blowing function, so as to
Reach the purpose of cleaning.
The overall direction extension along Fig. 1 shown in arrow B of hair-dryer 100, the direction is defined as axially.Hair-dryer 100 wraps
Include casing, power set and fan component.Wherein casing include main part 40 and with connection it is extraneous and extend in the axial direction
Blower 19.Power set are connected to main part 40 to provide power for hair-dryer 100.In the present embodiment, power fills
Put including can the motor 2 that is rotated around a rotation axis of driving fan component, the motor 2 is placed in the main part 40.Certainly exist
In other embodiment, power set include motor and control circuit (not shown).Power set are detachably connected with casing, with
During so that hair-dryer is idle, power set are removable to be unloaded down, for other power tools, reduces the waste of resource.Fan component
Driven by power set and rotate and produce air-flow.Fan component is included in axially upper front and rear the first fan 7 and the second wind set
Fan 15.Hair-dryer 100 also include being supplied to few first fan 7 drive caused by the first air intake passage for entering of air-flow and be supplied to few the
Two fans 15 drive the second air intake passage that caused air-flow enters.Preferably, into the first air intake passage air-flow by first
Driving produces the fan 15 of fan 7 and second jointly, and generation is operated alone by the second fan 15 in the air-flow into the second air intake passage.
As preferred embodiment of the present utility model, main part 40 and blower 19 are split settings, certainly, main part
40 can also be integrally formed with blower 19.Main part 40 is that two half shells assemble to be formed.Specifically, main part 40 includes left machine
Shell 1 and right casing 29.Formed with the receiving space being contained in motor 2 in it after left and right case combination.Hair-dryer 100 includes
The the first duct portion 9 that air-flow can be directed into blower 19, main part 40 is formed with the supply stream connected with the first duct portion 9
The first group of air inlet 10 entered.Under hair-dryer 100 is in running order, driven jointly by the first fan 7 and the second fan 15
At least part of air-flow caused by dynamic is entered in the first duct portion 9 from first group of air inlet 10 to form the first air intake passage.
For convenience of explanation, front end, the opposite side in the first duct portion 9 are defined as to the direction of blower 19 with the first duct portion 9 below
It is defined as rear end.As shown in figure 3, the first duct portion 9 in the present embodiment, is cartridge, the shape of desk lamp is approximately similar to
Shape designs.The rear end in the first duct portion 9 is fixedly connected with main part 40.As shown in figs. 1 and 3, in the upper of the first duct portion 9 simultaneously
The lower plane of symmetry is provided with matrix pattern spacing preiection 33 and rotated in the circumferential relative to main part with limiting the first duct portion 9.Such as Fig. 2
It is shown, it is provided with thermovent 24 in the rear end of left casing 1 and right casing 29.
As shown in figure 1, hair-dryer 100 also includes the second duct portion 18 being directed into air-flow in blower 19, second contains
At least part of road portion 18 is socketed on the first duct portion 9, the supply stream between the first duct portion 9 and the second duct portion 18 enter the
Two groups of air inlets 12.Under hair-dryer 100 is in running order, it is operated alone by the second fan 15 in caused air-flow at least
Part is entered in the second duct portion 18 to form the second air intake passage between second group of air inlet and the second fan 15.Wherein
It is driven at least part of the air-flow of the first air intake passage jointly by the first fan 7 and the second fan 15 and by the second fan 15
Collecting at least partially between the first fan 7 and the second fan 15 into the air-flow of the second air intake passage is operated alone, and certainly
Second fan 15 is blowed in blower 19.By as shown in FIG. 8 and 9 between wherein the first duct portion 9 and the second duct portion 18
The form of bayonet lock neck is fixedly connected.In the present embodiment, it is provided with the front end in the first duct portion 9 as shown in Figure 8 along first
The boss bayonet lock 20 of the radial protrusion of duct portion 9, the card as shown in Figure 9 coordinated with bayonet lock 20 is provided with the second duct portion 18
Groove 22, the first duct portion 9 is snapped onto by bayonet lock 20 and the fixation of the two is realized in the neck 22 in the second duct portion 15, while neck
22 inner sides are provided with neck boss 30, and screw 21 is additionally provided with bayonet lock 20 and neck boss 30, by pacifying in screw 21
Cartridge screw further fixes the first duct portion 9 and the second duct portion 18.Certainly in other embodiments, second can be also not provided with
Duct portion 18, as long as enter between the duct portion 9 of blower 19 and first formed with supply stream in the second air intake passage second
Group air inlet 12, the air-flow entered from second group of air inlet 12 can be flowed directly into blower 19.Further, duct
The quantity in portion can also be not limited to two, and specific quantity can be adjusted accordingly according to the quantity of air intake passage.In the present embodiment
In, the first duct portion 9, the second duct portion 18, main part 40, blower 19 are split settings.And in other embodiments, the
At least two in one duct portion 9, the second duct portion 18, main part 40, blower 19 are formed in one or are all integrally formed.
Preferably, as shown in figure 4, wherein the first fan 7 is arranged in the first duct portion 9, the second fan 15 is arranged on
In two duct portions 18.Second fan 15 is presented axially in the front end of the first fan 7.First duct portion 9 includes passing through in the axial direction
Logical first interface portion 91 and second interface portion 92.The opening size in first interface portion 91 is more than the opening in second interface portion 92
Size.Wherein, first interface portion 91 is located at the rear end in second interface portion 92, and first interface portion 91 is connected with first group of air inlet 10
Logical, second interface portion 92 is arranged between the first fan 7 and the second fan 15, and the sectional area of second interface portion 92 diametrically
Less than or equal to the sectional area of the second fan 15 diametrically.Second interface portion 92 towards the second fan 15 and with the second duct portion 18
It is connected, and the sectional area of second interface portion 92 diametrically is less than the sectional area of the second fan 15 diametrically.Such as Fig. 6 institutes
Show, to increase the throughput entered inside hair-dryer 100, the axial direction that first group of air inlet 10 includes being formed on main part 40 is entered
Air port 25, the radial direction air inlet being located in the circumferential on main part 40；Wherein radial direction air inlet includes the axially extended
One radial direction air inlet 26 and the second radial direction air inlet 27 radially extended.The setting of above-mentioned multiple first group of air inlet 10 enters one
Step ensure that the increase of intake.First group of air inlet 10 is arranged on the rear end of the first fan 7, and second group of air inlet 12 is arranged on
The rear end of second fan 15.Separate front and back is set in the axial direction for first group of air inlet 10 and second group of air inlet 12.
In the present embodiment, the first fan 7 and the second fan 15 are aerofoil fan.Due to aerofoil fan can produce compared with
High wind speed, on the premise of no increase size, aspect of blowing efficiency is greatly improved.First fan 7 and the second fan 15 are equal
If the blade in wheel hub circumference is located at including wheel hub and girth.Preferably, the rotation external diameter of the blade of the first fan 7, rotation in
Rotation external diameter, rotary inside diameter and the leaf of at least one blade different from corresponding second fan 15 in the quantity of footpath and blade
The quantity of piece.Specifically, the rotation external diameter of the second fan 15 is more than the rotation external diameter of the first fan 7, the rotation of the second fan 15
Internal diameter is more than the rotary inside diameter of the first fan 7, and the quantity of the blade of the second fan 15 is more than the quantity of the blade of the first fan 7.
In the present embodiment, the hub ratio of the second fan 15 is 0.6~0.8, and the hub ratio of the first fan 7 is 0.5~0.7.Preferably,
The hub ratio of second fan 15 is more than the hub ratio of the first fan 7, i.e. the hub ratio of the second fan 15 is preferably 0.7, the first wind
The hub ratio of fan 7 is preferably 0.6.It should be noted that：The root diameter (RD) of blade is rotary inside diameter, and the top diameter of blade is
To rotate external diameter.The ratio between the root diameter (RD) of blade and the top diameter of blade be fan hub diameter and outer blade diameter it
Than hub ratio that is, well-known to those skilled in the art.In embodiment of the present utility model, the first fan 7, the second fan 15
Hub ratio size it is most important to the air quantity and wind speed of hair-dryer.For axial-flow blower, hub ratio directly affects
Its output pressure, hub ratio is more big more big then output pressure is bigger, therefore concatenates the bigger fan of wheel hub and be advantageous to significantly carry
The output pressure of high blower.So aspect of blowing efficiency is higher.Further, the blade of the above-mentioned fan 15 of first fan 7 and second
Structure differ, and then air-flow caused by the first fan 7 is avoided as far as possible by the stop of the second fan 15, when motor drives
During dynamic fan component rotation, larger air-flow will be produced, and then make the hair-dryer 100 that there is preferable aspect of blowing efficiency.As
The utility model preferred embodiment, the quantity of the first fan 7 can be with more than one, and the structure of each first fan 7 can be complete
It is identical also can be at least partly different；The quantity of second fan 15 can also more than one, the structure of each second fan 15 can be complete
It is exactly the same also can be at least partly different.It can also be more that the first fan 7 being arranged in the first duct portion 9, which can be one,
Individual, it can also be multiple that the second fan 15 being arranged in the second duct portion 18, which can be one,.
In preferred embodiment of the present utility model, as shown in figs. 2 to 4, the definition of blower 19 has a central axis X.Should
Blower 19 is socketed on the front end in the second duct portion 18, and is to be detachably connected with the second duct portion 18.Preferably, blower 19
One and only one.Certainly in other embodiments, blower 19 can have for one of more sections of tube combinations formation and completely blow
The airduct of wind function.The rear end of blower 19 is connection end, and front end is communicated with the air outlet 191 in the external world, the He of the first duct portion 9
The connection of second duct portion 18 is arranged between blower 19 and main part 40.
As preferred embodiment of the present utility model, as shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the first fan 7 and the second fan
15 drive by same motor 2 and a power transmission shaft 6；Wherein motor 2 is fixedly mounted on the left casing 1 and right casing 29
It is interior.In the present embodiment, motor 2 includes the output shaft 31 of output power, and the output shaft 31 drives first, the around a rotation axis
Two fans rotate together with.And the first fan 7 in the present embodiment and the second fan 15 are synchronous same-speed operation, but as replacement
Embodiment, between the first fan 7 and the second fan 15 or synchronous friction speed runs either synchronized asynchronous operation or asynchronous
Friction speed is run.First fan 7 and the second fan 15 are coaxially disposed and with the pivot centers that rotation is driven by motor.In this reality
In new, the line of pivot center three of the central axis X of blower 19, the rotation axis of motor and first, second fan overlaps.
Relative to single fan, the settings of multiple fans can often bring higher noise to design limitation, and by above three axis designs
Into coincidence, meeting greatly reduces the noise of complete machine, and aspect of blowing efficiency is more preferable.Further, the output shaft 31 of motor 2 can pass through company
The connection power transmission shafts 6 of spindle set 4, the end of connecting bushing 4 is fixed spacing by collar 5.Rear starting taper 3 is installed on connecting bushing 4；
Power transmission shaft 6 extend into fix with the deflection cone 28 of the end of the second duct portion 18 in the second duct portion 18 through the first duct portion 9 to be connected
Connect.Wherein the first duct portion 9 is installed on power transmission shaft 6 by clutch shaft bearing 8 and second bearing 14.
As shown in Fig. 3, Fig. 4 and Fig. 7, hair-dryer 100 also includes being oriented to the air-flow that second group of air inlet 12 enters
A plurality of deflectors 11.Deflector 11 is arranged between the outer peripheral face in the first duct portion 9 and the inner peripheral surface in the second duct portion 18
And it is equidistantly spaced in the circumferential.The setting of deflector 11 can be by the flow direction of the air-flow entered in second group of air inlet 12
Correcting is carried out, moves axially forward to blower 19, subtracts in the second air intake passage along deflector 11 even if obtaining air-flow
Few windage loss, increases air output.Hair-dryer 100 further comprises before being arranged between the second fan 15 and air outlet 191
Starting taper 28.Sectional area of the preceding starting taper 28 on the direction perpendicular to central axis X is by rear end to front end into the trend being gradually reduced.
In the present embodiment, preceding starting taper 28 is pyramidal structure.
The operation principle of the utility model hair-dryer：
Understood according to those skilled in the art, the working effect of hair-dryer 100 depends primarily on the air quantity of hair-dryer
And blast.The air quantity of fan is the volume of air of fan time per unit dispatch, is represented with Q.The blast of fan is fan
The difference of exit flow total head and inlet air flow total head is referred to as blast, is represented with P.
In embodiment of the present utility model, during blower operation, motor drives the first fan 7 and the second fan 15 common
Rotate driving outer gas stream flowed into by first group of air inlet 10 in the first duct portion 9, now, first group of air inlet 10 with
The first air intake passage is formed between second fan 15, the flow flowed into the first air intake passage is calculated as Q1, air-flow is first
The blast formed in air intake passage is calculated as P1；When hair-dryer 100 works, motor 2 drives the first fan 7 and the second fan 15 to revolve
Turn, by the second fan 15 rotate caused by air-flow be at least partially into in the second duct portion 18 with second group of air inlet
12 and second form the second air intake passage between fan 15, the flow flowed into the second air intake passage are calculated as into Q2, air-flow exists
Blast in second air intake passage is calculated as P2；Flow into the air-flow in the first air intake passage and the air-flow flowed into the second air intake passage
Import to blower 19, i.e., mixing runner is formed in blower 19, is finally formed strongly in the air outlet of blower 19
Jet-stream wind.Therefore, in the present embodiment, the air quantity Q=Q1+Q2 flowed into blower 19, air quantity obtain significantly
Lifting；Blast P=P1+P2 caused by the air-flow flowed into blower 19, and because the setting of preceding starting taper, final air-flow are blowing
Blast caused by the front end of airduct 19 is inevitable bigger, therefore, is obtained from the flow velocity of the air-flow of the blowout of air outlet 191 of blower 19 bright
Aobvious increase.Hair-dryer provided by the utility model, also ensure that air quantity dramatically increases while wind velocity lift is taken into account, dry
Effect is very good.Specifically, for multi-fan provided by the utility model, multiple duct axial-flow type hair-dryer in air quantity and wind speed
Lifting can show following by with the contrast of the relevant parameter of conventional axial-flow type hair-dryer.
As shown in figure 9, be conventional single fan, single air channel axial-flow type hair-dryer wind force distribution schematic diagram, Tu10Wei
Double fan of the prior art, single air channel axial-flow type hair-dryer wind force distribution schematic diagram；Figure 10 is only simple compared to Fig. 9
Fan superposition.
Figure 11 be respectively double fan of the present utility model, double air channels axial-flow type hair-dryer wind force distribution schematic diagram.Figure
The unit of vertical pivot data is pa in 11, and it represents blast caused by blower air outlet.From following table：It is simple in air channel
Interior to be overlapped fan, pressure increases in air channel but air quantity reduces.And the axle in the double air channels of double fan of the present utility model
Streaming hair-dryer, on the one hand, the air intake passage of superposition, be designed with external air flow introducing each air intake passage in each air intake passage
Interior fan, and the first fan 7 is different from the structure of the second fan 15 so that the air quantity of blower blowout substantially increases；It is another
Aspect, under conditions of blower caliber is not changed, blast also substantially increases, and then the air-flow being blown out of blower air outlet
Flow velocity it is big, the working effect of hair-dryer is obviously improved.Because compared to prior art, axial-flow type blowing of the present utility model
Machine can take into account the common lifting of air quantity and wind speed, and airflow effects are very good.
The comparison of the design parameter carried out the following table is design of the present utility model and prior art, can by following table
Know：By the size for reducing the first fan 7 and the second fan 15 so that the shaft power of double fan is minimum；And further through by first
The structure of fan 7 and the structure of the second fan 15 are designed to differ, and by being superimposed the design of air intake passage so that even in
Under conditions of reducing the first fan 7 and the size of the second fan 15, the air quantity and blast in the double air channels of double fan will not also reduce, and phase
For single fan list air channel, the scheme in the double air channels of double fan is obviously improved on air quantity and blast.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (15)
1. a kind of hair-dryer, it includes：
Casing, including main part and blower that is extraneous with connection and extending in the axial direction；
Power set, the main part is connected to provide power for the hair-dryer；
Fan component, driven by the power set and rotate and produce air-flow；
Characterized in that,
It is few including being supplied to that the fan component is included in axially upper front and rear the first fan and the second fan set, the hair-dryer
The first air intake passage and be supplied to less what air-flow caused by second fan entered that air-flow caused by first fan enters
Second air intake passage, imported into the air-flow in first air intake passage and the air-flow entered in second air intake passage
Blow out in the blower and outwardly.
2. hair-dryer according to claim 1, it is characterised in that enter the air-flow of first air intake passage by described the
One fan and second fan drive generation jointly, and the air-flow into second air intake passage is independent by second fan
Driving produces.
3. hair-dryer according to claim 2, it is characterised in that the casing also includes air-flow being directed into the blowing
The first duct portion in pipe, first group of air intake that the main part enters formed with the supply stream connected with the first duct portion
Mouthful, under hair-dryer is in running order, in the air-flow as caused by first fan and second fan driving jointly
At least partly entered to from first group of air inlet in the first duct portion with first group of air inlet and described the
First air intake passage is formed between two fans.
4. hair-dryer according to claim 3, it is characterised in that the hair-dryer also includes supply stream and enters to described the
Second group of air inlet in two air intake passages, second group of air inlet be arranged on the first duct portion and the blower it
Between.
5. hair-dryer according to claim 4, it is characterised in that the casing also includes air-flow being directed into the blowing
The second duct portion in pipe, the second duct portion are at least partly socketed on the first duct portion, second group of air inlet
It is formed between the first duct portion and the second duct portion, under hair-dryer is in running order, by second wind
Fan be operated alone caused by air-flow be at least partially into in the second duct portion with second group of air inlet with
Second air intake passage is formed between second fan.
6. hair-dryer according to claim 5, it is characterised in that first group of air inlet and second group of air inlet
Separate front and back is set in the axial direction.
7. hair-dryer according to claim 5, it is characterised in that first group of air inlet includes being formed at the main body
The air inlet through hollow shaft mouth in portion and the radial direction air inlet for being located on the main part in the circumferential.
8. hair-dryer according to claim 5, it is characterised in that first fan is arranged on the first duct portion
Interior, second fan is arranged in the second duct portion, and the quantity of the first fan in the first duct portion is big
In equal to 1, the quantity of the second fan in the second duct portion is more than or equal to 1.
9. hair-dryer according to claim 5, it is characterised in that the first duct portion includes the penetrated in the axial direction
One interface portion and the second interface portion relative with first interface portion, the first interface portion are connected with first group of air inlet
Logical, the second interface portion is arranged between first fan and second fan, and the second interface portion is radially
On sectional area be less than or equal to the sectional area of second fan diametrically.
10. hair-dryer according to claim 1, it is characterised in that enter in the air-flow of first air intake passage extremely
Being converged at least partially between first fan and the second fan in the air-flow of small part and entrance second air intake passage
Collection, and blowed to from second fan in the blower.
11. hair-dryer according to claim 1, it is characterised in that first fan and second fan are axle
Flow fan.
12. hair-dryer according to claim 1, it is characterised in that first fan includes with second fan
If wheel hub and girth are located at the blade in wheel hub circumference, quantity of first fan with the blade of first fan, blade
Rotation external diameter, blade rotary inside diameter in the quantity of at least one blade for being different from corresponding second fan, leaf
Rotation external diameter, the rotary inside diameter of blade of piece.
13. hair-dryer according to claim 1, it is characterised in that the hub ratio of second fan is more than described first
The hub ratio of fan.
14. hair-dryer according to claim 1, it is characterised in that the power set include motor and control circuit, institute
The rotary motion of fan component described in motor control is stated, the power set are detachably installed with the casing.
15. hair-dryer according to claim 14, it is characterised in that the blower is provided with a central shaft in the axial direction
Line, the motor drive first fan to be rotated with second fan around a rotation axis, first fan with it is described
Second fan is coaxially disposed and with the pivot center that rotation is driven by motor, the central axis of the blower, the horse
The rotation axis and the line of pivot center three of first, second fan reached overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720448321.7U CN206815252U (en) | 2017-04-26 | 2017-04-26 | A kind of hair-dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720448321.7U CN206815252U (en) | 2017-04-26 | 2017-04-26 | A kind of hair-dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206815252U true CN206815252U (en) | 2017-12-29 |
Family
ID=60754299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720448321.7U Active CN206815252U (en) | 2017-04-26 | 2017-04-26 | A kind of hair-dryer |
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| Country | Link |
|---|---|
| CN (1) | CN206815252U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3682730A1 (en) * | 2019-01-15 | 2020-07-22 | Andreas Stihl AG & Co. KG | Fan unit for a hand-held blowing device |
| WO2023040651A1 (en) * | 2021-09-14 | 2023-03-23 | 格力博(江苏)股份有限公司 | Blower |
| US11889794B2 (en) | 2020-12-30 | 2024-02-06 | Milwaukee Electric Tool Corporation | Handheld blower |
-
2017
- 2017-04-26 CN CN201720448321.7U patent/CN206815252U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3682730A1 (en) * | 2019-01-15 | 2020-07-22 | Andreas Stihl AG & Co. KG | Fan unit for a hand-held blowing device |
| US11585349B2 (en) | 2019-01-15 | 2023-02-21 | Andreas Stihl Ag & Co. Kg | Blower unit for a handheld blower apparatus |
| US11889794B2 (en) | 2020-12-30 | 2024-02-06 | Milwaukee Electric Tool Corporation | Handheld blower |
| WO2023040651A1 (en) * | 2021-09-14 | 2023-03-23 | 格力博(江苏)股份有限公司 | Blower |
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