CN104074156B - Handheld blower - Google Patents
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- CN104074156B CN104074156B CN201310109907.7A CN201310109907A CN104074156B CN 104074156 B CN104074156 B CN 104074156B CN 201310109907 A CN201310109907 A CN 201310109907A CN 104074156 B CN104074156 B CN 104074156B
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Abstract
The invention provides a handheld blower. The handheld blower comprises a shell, a battery and a blowing pipe, wherein a wind inlet and a duct component are arranged on the shell; the duct component comprises a duct connected with the shell, and a motor and fan mounted in the duct; the shell is connected to the blowing pipe through the duct component; the battery is mounted on the shell; the fan is connected with the motor, and is an axial flow fan; and the outer diameter of the axial flow fan is within 85-140 mm. The handheld blower has a greater wind amount to easily blow most fallen leaves on the ground and garbage in cracks so as to satisfy the use requirements of operators.
Description
Technical field
The present invention relates to a kind of electric tool, particularly a kind of hand blower.
Background technology
Hand-held DC blower is mainly used in blowing the fallen leaves near ground, court and grandstand and small-sized rubbish.In order to
Blow afloat slightly heavy rubbish in the substantial amounts of fallen leaves in ground and some cracks, it usually needs the air quantity of hand blower is larger, and
In the market using the hand-held DC blower of aerofoil fan, due to the limitation of design, hair-dryer whole machine air-out is caused to be imitated
Rate is relatively low, the air quantity of hair-dryer less it is impossible to meet the requirement of user.
Content of the invention
It is an object of the invention to provide a kind of larger hand blower of air quantity.
For reaching above-mentioned purpose, the present invention provides a kind of hand blower, including housing, battery and blower, described shell
Air inlet and an exhausting assembly are provided with body, described exhausting assembly is included the exhausting being connected with housing and is installed in exhausting
Motor and fan, described housing is connected on blower by exhausting assembly, and described battery is arranged on housing, described fan
It is connected with motor, described fan is aerofoil fan, and the external diameter of described aerofoil fan is between 85mm-140mm.
Further, the battery capacity of described hand blower is between 170wh-400wh.
Further, the air quantity of described hand blower is in 430cfm-700cfm, and the work of described hand blower
Time of making is more than 5min.
Further, described motor is brshless DC motor, and the diameter of described brshless DC motor is less than or equal to 35mm,
The air quantity of described hand blower is more than 12cfm/mm with the ratio of described brshless DC motor diameter.
Further, a central axis is defined on described blower, the direction along axis is leaned in the rear end of fan
The flow cross section in the air channel at nearly air inlet position is more than the area of the flow cross section at air outlet position on blower, described shell
Internal one circulating face of formation between wall and fan hub, the flow cross section at air outlet position and position residing for fan on blower
The ratio put between the flow cross section of circulating face is more than or equal to 0.8.
Further, described fan defines an outer contour to the air channel of air outlet section, and described central axis is outer with described
The angle of contour line is less than or equal to 8 degree,
Further, the cross-sectional area at described blower air outlet position is more than 4300mm.
Further, the air quantity of described hand blower and the ratio of input power are more than or equal to 0.7cfm/w.
Further, described housing, exhausting assembly and blower are located substantially on same straight line, and described blower is in length side
Define a central axis upwards, described handle includes grip part, described grip part is distributed in hair-dryer entirety center of gravity and is located
The both sides of plane, described plane is parallel to described axis and vertical with work ground.
Further, described housing include supplying circulation to sweep, described handle is arranged on the sweep of housing
On.
The hand blower of the present invention uses brushless electric machine and aerofoil fan, and the external diameter of aerofoil fan exists
Between 85mm-140mm, so setting make hair-dryer air quantity sufficiently large, can blow afloat ground substantial amounts of fallen leaves and some
Slightly heavy rubbish in crack, meets the use demand of operator.
Brief description
Fig. 1 is the perspective view of the hand blower in embodiment of the present invention；
Fig. 2 is that the hand blower in embodiment of the present invention removes the front view after partial shell；
Fig. 3 is the front view of the hand blower in embodiment of the present invention；
Fig. 4 is the top view of the hand blower in embodiment of the present invention；
Fig. 5 is the structural representation that is connected with exhausting assembly of air intake box of the hand blower in embodiment of the present invention
Figure；
Fig. 6 is the structural representation of the handle of hand blower in embodiment of the present invention；
Fig. 7 is the sectional view of the exhausting assembly of hand blower in embodiment of the present invention；
Fig. 8 be embodiment of the present invention in hand blower exhausting assembly remove part exhausting and connecting tube after
Axonometric chart；
Fig. 9 is hand blower fan blade external diameter and aspect of blowing efficiency functional relationship in embodiment of the present invention
Curve.
Specific embodiment
In order to better understand the technology contents of the present invention, illustrate especially exemplified by specific embodiment and appended by coordinating as
Under.
Refer to Fig. 1 and Fig. 2, as the hand blower 10 of embodiment of the present invention, including housing 11, air intake box
12nd, handle 13, control assembly 14, battery 15, exhausting assembly 17 and blower 19, wherein exhausting assembly 17 is right respectively with battery 15
The both sides of housing 11 should be located at, handle 13 is arranged on housing 11, and housing 11 is connected with blower 19 by exhausting assembly 17, enters
Wind box 12 is located inside housing 11.
Please also refer to Fig. 3, housing 11 includes accommodating chamber 110, installation portion 111, main air inlet 112, auxiliary air inlet mouth
113rd, sidepiece air inlet 114 and sweep 115, accommodating chamber 110 is formed in housing 11, and air intake box 12 is arranged on accommodating chamber
In 110, exhausting assembly 17 one end is fixedly mounted in installation portion 111.Main air inlet 112 is arranged at auxiliary air inlet mouth 113
The bottom of housing 11, sidepiece air inlet 113 is arranged on the side wall of housing 11, and air-flow passes through main air inlet 112 or auxiliary air inlet
Mouth 113 entrance, flows into exhausting assembly 17 from installation portion 111 after the guiding of sweep 115.Sidepiece air inlet 114 has
There iss auxiliary air inlet, more preferable air inlet effect can be played, certainly also can not need sidepiece air inlet 114.
Refer to Fig. 5, air intake box 12 includes bottom air inlet portion 120, rear portion inlet section 121, sidepiece inlet section 122 and goes out
Air port 123, wherein bottom air inlet portion 120 and rear portion inlet section 121 are rail shape structure, and rear portion inlet section 121 is arranged
Become one with the corresponding ramp structure of sweep 115 on housing 11, the air outlet 123 of air intake box 12 and exhausting assembly 17
Air intake (figure is not marked) connects, and now air intake box 12 and exhausting assembly 17 form the unit 18 that can work independently, on air intake box
Bottom air inlet portion 120, rear portion inlet section 121, sidepiece inlet section 122 form multiple air blasting passage with air outlet 123 respectively, because
No matter how housing 11 changes for this, as long as the unit 18 that can work independently can load in housing and form air blasting passage, machine is just
Blowing function can be realized.In this way can be in the case that internally working cell be constant, the quick hand-held that changes blows
The external form of blower fan.In embodiments of the present invention, the bottom air inlet portion of the main air inlet 112 on housing 11 and blowing box 12
120 and air outlet 123 together form the first air blasting passage, the rear portion of auxiliary air inlet mouth on housing 11 113 and blowing box 12
Inlet section 121 and air outlet 123 together form the second air blasting passage, sidepiece air inlet on housing 114 and blowing box 12
Sidepiece inlet section 122 and air outlet 123 form the 3rd air blasting passage together.
Please also refer to Fig. 1, Fig. 2, Fig. 4 and Fig. 6, handle 13 is used for gripping hand blower 10, it is located at housing 11
And the top of battery 15 being arranged on the sweep 115 of housing 11, handle 13 includes grip part 130, battery installation section 131
And speed governing portion 132, wherein grip part 130 is located between battery installation section 131 and speed governing portion 132.
In embodiments of the present invention, a central axis l1 is alongst defined on blower 19, blowing
Overall center of gravity g of machine is located in plane p1, and plane p1 is vertical with the ground p2 of work, simultaneously parallel with axis l1.Housing
11st, battery 15, exhausting assembly 17 and blower 19 are located substantially on same straight line, and the grip part 130 on handle 13 is distributed in
State the both sides of plane p1, preferably symmetrical for grip part 130 is distributed in plane p1 both sides.So compact conformation, distance of centre of gravity
Near grip part, decrease the power overcoming hand blower deflection required in use, increase degree of being held by hand comfortably, subtract
Few hand-held feeling of fatigue during long-time use.Battery can certainly be arranged on above or below housing 11, housing
11st, exhausting assembly 17 and blower 19 are located substantially on same straight line, and it is flat that the grip part 130 on handle 13 is distributed in center of gravity place
The both sides in face (figure is not marked), the diameter parallel of described plane and blower 19, and, above-described work vertical with work ground p2
It is defined as a horizontal plane as ground.
Control assembly 14 is used for controlling opening and closing and the rotating speed size of hand blower, and it includes controlling hand blower
The trigger 140 of opening and closing, the lock-button 141 preventing hand blower error starting, control hand blower are transported with maximum (top) speed
The speed governing button 143 amplifying button 142 and adjusting hand blower motor 172 rotating speed turning, wherein speed governing button 143 are located at speed governing portion
On 132.For the convenience operating, wherein trigger 140, lock-button 141 and amplification button 142 is arranged on grip part 130, so
Position setting can ensure that operator can while by trigger action 140 can with thumb operate amplify button 142, in addition
Work under the conditions of high speed is dried if necessary to long-time, operator can also be pressed by palm when gripping handle 13 simultaneously
Amplify button 142 and lock-button 141, press trigger squeeze 140 additionally by finger part, so only handss can be completed by one-handed performance
Hold starting and its continuous running being kept with maximum running speed of formula hair-dryer, reduce the fatigue of hand during using,
Increase and grip comfort level.Wherein lock-button 141 is merely to the auxiliary preventing maloperation from starting hand blower and arranging is opened
Close part it is envisaged that lock-button 141 can also not had, only pass through trigger 140 and amplification button 142 completes opening of hand blower
Dynamic process simultaneously keeps its continuous running.
Battery 15 is arranged on housing 11 by battery installation section 131, for providing power supply, housing to hand blower
It is provided with the ejection 116 with battery 15 cooperation and battery mounting base (figure is not marked), ejection 116 is connected with spring 117 on 11,
And can rotate relative to housing, when battery 15 is installed on housing 11, the front end of battery 17 promotes ejection 116 to overcome bullet
The elastic force of spring 117 rotates and is displaced to a precalculated position, and when dismantling battery 15, ejection 116 is in the elasticity of spring 117
Under power effect, battery 15 is ejected towards the direction of dismounting.
Battery lock 1311 is provided with battery installation section 131, battery lock 1311 is used for for battery 15 being locked at housing
On 11, on battery lock 1311, linkage is provided with button release 1312, by pressing or promoting the band of button release 1312 linkage
Galvanic electricity pond lock 1311 is separated with battery 15, and then battery 15 can easily disassemble in the presence of ejection 116.When
So, battery installation section 131 can also be arranged on housing 11, as long as being locked on housing 11 when can play installation battery 15
Function on the battery mounting base of setting.
Refer to Fig. 7 and Fig. 8, exhausting assembly 17 includes the connecting tube 170 being connected with blower 19, be connected with housing 11
Exhausting 171 and motor 172 and fan 173, motor 172 is connected with the trigger 140 in control assembly 14 by wire, connecting tube
170 with the mutual clamping of exhausting 171, be provided with the support ring 174 accommodating motor 172, motor 172 in connecting tube 170 and exhausting 171
It is arranged in support ring 174, fan 173 is connected with the output shaft of motor 172, be all integrally formed in connecting tube 170 and exhausting 171
There is the wind-guiding muscle 175 of some divergent shapes, wind-guiding muscle 175 one end is connected on connecting tube 170 or the inwall of exhausting 171, the other end
It is connected in support ring 174, wherein at least one wind-guiding muscle 175 is provided with the passage 176 that power supply machine 172 wire passes through.This
Sample not only increased the reliability of wire positioning but also decreased windage, and do not increased new part, fixing wire letter during assembling
List, reliability, convenience.If it is understood that exhausting 171 length, enough it is also possible to not pass through connecting tube 170, directly will be propped up
Pushing out ring 174 and wind-guiding muscle 175 are arranged in exhausting 171.Exhausting 171 has an inlet section 1711, in order to reduce exhausting air intake
Noise at portion 1711, exhausting inlet section 1711 is arranged for ease of the lip structure of wind-guiding, and above-mentioned lip structure can be with exhausting
171 integrally formed or formed independent part be installed in exhausting 171.
In embodiments of the present invention, fan 173 be aerofoil fan, motor 172 be brshless DC motor, fan 173 by
Motor 172 drives, and it includes a wheel hub 1731 being installed on electric machine rotational axis (figure do not mark), multiple is installed to above-mentioned wheel hub
Blade 1732 on 1731, its Leaf 1732 and wheel hub 1731 can be integrally formed or be assembled into after being formed separately
Together.
Fan 173 is provided with trouserss 177 near one end of housing 11, and motor 172 is connected to fan 173 near blower
19 one end, because fan 173 is aerofoil fan, air-flow enters inlet air by the first air blasting passage and second, third air blasting passage
After fan 173, in the presence of fan 173 axial direction by wind-guiding muscle 175, and flow in blower 19.In embodiment party of the present invention
In formula, support ring 174 includes receiving portion 1741 and the air dam 1742 accommodating motor 172, the front end perforate (figure of receiving portion 1741
Do not mark), air dam 1742 is pyramidal structure and is integrally formed with receiving portion 1741, air dam 1742 is arranged in support ring 174
Near one end of blower 19, air dam 1742 is provided with some fresh air inlets (figure is not marked), enters for cooling airflow.In blowing
During, because the air pressure of motor 172 periphery is high compared with the air pressure near fan 173, in the presence of pressure differential, produce time air-flow,
The fresh air inlet that secondary air-flow passes through on air dam 1742 flows into inside support ring 174, inside cooling motor 172, eventually through receiving
The front end perforate in portion 1741 is flowed out, and so can play the effect of cooling motor 172 during blowing again.
Referring again to Fig. 3, for the ease of carrying, the hand blower of the present invention is additionally provided with braces, and (figure is not
Show), braces two ends are connected respectively to two lanyard holes 118,119 being arranged on housing 11, and two lanyard holes 118,119 are to holding
The distance at Chi Bu 130 center is substantially the same, and two lanyard holes 118, the midpoints of 119 position lines are located at machine gravity line
Vicinity.
Hand-held DC blower is mainly used in blowing the fallen leaves near ground, court and grandstand and small-sized rubbish, through adjusting
Grind and obtain, in order to blow afloat the rubbish in the substantial amounts of fallen leaves in ground and some cracks, it usually needs the air quantity of hand blower
Preferably it is greater than 395cfm.The hand-held DC blower being arranged on battery bag on housing in the market is due to battery
The limitation of the aspect such as capacity is little and hair-dryer whole machine air-out is less efficient, causes hair-dryer to be extremely difficult to air quantity and is more than
395cfm, the working time is more than the performance indications of 5min.Therefore, in order to reach larger air quantity and higher aspect of blowing efficiency, need
Battery capacity, brshless DC motor, the parameter of aerofoil fan and Duct design are optimized.
In order to reach preferable airflow value and working time, the capacity of battery is typically larger than 170wh, battery under normal circumstances
Capacity be directly proportional to the weight of itself, for hand blower, due to the weight demands to whole machine, battery inclusion quantity
Preferred scope between 170wh-400wh, if such setting be because on the one hand battery inclusion quantity too little it is impossible to meet
Air quantity and the requirement of working time；And if on the other hand too big, the hand-held in use feeling of fatigue meeting of battery inclusion quantity
Increase, be unfavorable for that operator works long hours.
Table 1 lists battery capacity in 200wh and 300wh, and hand blower runs and minimum wind in maximum quantity of wind
Effective time when amount is run.It can also be seen that battery capacity one timing from table 1, air quantity was inversely proportional to the working time,
That is air quantity is bigger, and the working time is shorter.According to ergonomicss, and by main screw lift, people bear use
A large amount of simulation experiment analyses of degree draw, are relatively suitable for the performance of the hand-held direct current hand blower of masses' client's use requirement
Parameter is: between 385cfm-700cfm, the working time is between 20min-75min to air quantity.
Table 1
| Battery capacity | Maximum quantity of wind | Minimum air quantity |
| 200wh | 36min | 120min |
| 300wh | 54min | 180min |
In the case that battery capacity is certain, it is more than the handss of 395cfm, higher aspect of blowing efficiency in order to obtain an air quantity
Hold formula direct current hand blower in addition it is also necessary to be optimized to brshless DC motor, the parameter of aerofoil fan and Duct design.
Referring again to Fig. 7 and Fig. 8, motor 172 is received into the support ring 174 of setting in exhausting 171 and connecting tube 170
Interior, the wheel hub 1731 of aerofoil fan 173 is installed in the rotary shaft of motor 172 (figure is not marked), according to aerodynamic principle, is
Reduce windage, improve wind speed, the outline of trouserss 177, wheel hub 1731 and support ring 174 be designed to one streamlined, therefore
Motor 172 diameter also determines the diameter of wheel hub 1731 simultaneously.Additionally, when designing aerofoil fan, the root of blade
The ratio of portion's diameter and top diameter, i.e. the ratio of fan hub diameter and outer blade diameter, hereinafter referred to as hub ratio, be one very heavy
The parameter wanted, same impeller outer diameter, wheel hub lobule length of a film is more suitable for the axial flow blower of low pressure and mass flow, through sunykatuib analyses wheel
, between 0.25-0.45, the air-out efficiency comparison of fan blade is high for hub ratio.If therefore motor diameter is larger, corresponding hub diameter
Also can be larger, in order that hub ratio parameter is maintained in optimum interval, thus obtaining higher air-out efficiency, the diameter phase of blade
Should increase, and then lead to exhausting volume to increase, the volume of whole machine also increases, so either configuration design or actually used mistake
Operational comfort in journey all can be adversely affected, it is therefore preferable that motor diameter is not more than 35mm, such overall mass is more
Gently, take up space less.According to the scope of hub ratio, can from which further follow that the scope of outer blade diameter 78mm-140mm it
Between, such aspect of blowing efficiency is higher, as shown in figure 9, c1 and c2 is respectively air quantity in 560cfm and 500cfm, through analogue simulation
The curve chart of functional relationship between modeling analysis gained outer blade diameter and aspect of blowing efficiency, outer blade diameter is in 85mm- as seen from the figure
During 140mm, preferably, aspect of blowing efficiency here is defined as the work(of air current flow generation and fan blade rotation is consumed for aspect of blowing efficiency
Work(ratio.
Further, because the diameter of motor is less than 35mm, air quantity is more than 12cfm/mm with the ratio of motor diameter, therefore
Compared with common hand blower, the hand blower in the present invention obtains more powerful blowing by the motor of small size
Wind effect.
Below the Duct design of the present invention is described in detail, referring again to Fig. 2, along the direction of axis l1,
The flow cross section s1 in the air channel near air inlet 112 position for the rear end of fan 173 is more than air outlet 191 position on blower 19
Flow cross section s3, and form annular flow face (figure is not marked) between exhausting 171 inwall and fan hub 1731,
The flowing in the flow cross section s3 at air outlet 191 position and aerofoil fan 173 present position annular flow face on blower 19
Ratio between the s2 of cross section is preferably greater than or equal to 0.8, and such setting effectively improves airflow characteristic, improves blowing
Efficiency.Fan 173 defines an outer contour l2 to 191 sections of air channels of air outlet simultaneously, and l1 and l2 defines an angle.Excellent
Choosing, angle between axis l1 and outer contour l2 is less than 8 degree, so arranges and is because that angle is bigger air-flow is formed necessarily
Windage, the air flow losses of such wind path wall increase, and the loss of the high velocity air of circulation in blower 19 increases, and leads to whole machine
Aspect of blowing efficiency reduces.Optimization by two above parameter, it is possible to achieve favourable air current flow situation is simultaneously in blower 19
Inside realize the less pressure loss, effectively improve aspect of blowing efficiency.
In order to reach enough air outputs at air outlet 191, through cfd(computational fluid dynamicses) analyze and test number
According to summary, it is commonly designed larger air outlet area it is preferred that the cross-sectional area at air outlet 191 position is set greater than
4300mm².Certainly, the increase wind speed with blowing area can decrease, through to practical operation preferred air-out open area
It is set to 4300mm2To 8000mm2.
By the battery capacity in the present invention, brshless DC motor, the optimization of the parameter designing of aerofoil fan and air channel
The improvement of design, when battery capacity is between 170wh-400wh, the air quantity of hand blower all can reach 395cfm with
On, particularly when air quantity is in 430-700cfm, remain to meet the working time more than 5min.Ensure that hair-dryer with the most simultaneously
When Wind Volume runs, air quantity is more than or equal to 0.7cfm/w with the ratio of input power, and aspect of blowing efficiency is very significantly improved.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.The affiliated skill of the present invention
Has usually intellectual, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations in art field.Cause
This, protection scope of the present invention ought be defined depending on those as defined in claim.
Claims (10)
1. a kind of hand blower, including housing, battery and blower, described housing is provided with air inlet and an exhausting
Assembly, described exhausting assembly includes the exhausting being connected with housing, the motor being installed in exhausting and fan and one and exhausting
The connecting tube connecting, described connecting tube is connected with blower, described battery be arranged on housing it is characterised in that: described motor
It is received in the support ring of setting in exhausting and connecting tube, the wheel hub of described fan is installed in the rotary shaft of motor, and fan exists
The upstream of air-flow direction is provided with trouserss, and the outline of described trouserss, wheel hub and support ring is designed to a streamline
Type, described motor is brshless DC motor, and the diameter of described brshless DC motor is less than or equal to 35mm, and described fan is axle
Flow fan, the external diameter of described aerofoil fan is between 85mm-140mm.
2. hand blower according to claim 1 it is characterised in that: the battery capacity of described hand blower exists
Between 170wh-400wh.
3. hand blower according to claim 1 it is characterised in that: the air quantity of described hand blower exists
430cfm-700cfm, and the working time of described hand blower is more than 5min.
4. hand blower according to claim 1 it is characterised in that: the air quantity of described hand blower with described
The ratio of brshless DC motor diameter is more than 12cfm/mm.
5. hand blower according to claim 1 it is characterised in that: a center is defined on described blower
Axis, the flow cross section along direction air channel near air inlet position in the rear end of fan of axis is more than on blower
The area of the flow cross section at air port position, forms a circulating face between described inner walls and fan hub, on blower
Ratio between the flow cross section of the flow cross section at air outlet position and fan present position circulating face is more than or equal to
0.8.
6. hand blower according to claim 5 it is characterised in that: the definition of the air channel of described fan to air outlet section
One outer contour, described central axis is less than or equal to 8 degree with the angle of described outer contour.
7. hand blower according to claim 5 it is characterised in that: the cross section at described blower air outlet position
Amass and be more than 4300mm.
8. hand blower according to claim 5 it is characterised in that: the air quantity of described hand blower and input
The ratio of power is more than or equal to 0.7cfm/w.
9. hand blower according to claim 1 it is characterised in that: described housing, exhausting assembly and blower are big
Cause is located along the same line, and described blower defines a central axis in the longitudinal direction, and described hand blower is also
Including a handle, described handle includes grip part, and described grip part is distributed in the both sides of hair-dryer entirety center of gravity place plane,
Described plane is parallel to described axis and vertical with work ground.
10. hand blower according to claim 9 it is characterised in that: described housing include supply circulation to curved
Bent portions, described handle is arranged on the sweep of housing.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109907.7A CN104074156B (en) | 2013-03-29 | 2013-03-29 | Handheld blower |
| US14/034,104 US10000900B2 (en) | 2013-02-20 | 2013-09-23 | Handheld blower having engine cooling flow |
| CA2828567A CA2828567C (en) | 2013-02-20 | 2013-09-26 | Handheld blower |
| GB1402819.5A GB2513230A (en) | 2013-02-20 | 2014-02-18 | Handheld blower |
| GB1702543.8A GB2549370A (en) | 2013-02-20 | 2014-02-18 | Handheld blower |
| FR1451355A FR3002245B3 (en) | 2013-02-20 | 2014-02-20 | MAN BLOWER |
| AU2014100157A AU2014100157A4 (en) | 2013-02-20 | 2014-02-20 | Handheld Blower |
| DE202014100752.0U DE202014100752U1 (en) | 2013-02-20 | 2014-02-20 | hand fan |
| US15/703,485 US10774487B2 (en) | 2013-02-20 | 2017-09-13 | Handheld blower having engine cooling flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109907.7A CN104074156B (en) | 2013-03-29 | 2013-03-29 | Handheld blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074156A CN104074156A (en) | 2014-10-01 |
| CN104074156B true CN104074156B (en) | 2017-01-25 |
Family
ID=51595732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310109907.7A Active CN104074156B (en) | 2013-02-20 | 2013-03-29 | Handheld blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074156B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846592A (en) * | 2014-11-28 | 2021-12-28 | 苏州宝时得电动工具有限公司 | Hair drier |
| US10227988B2 (en) | 2014-11-28 | 2019-03-12 | Positec Power Tools (Suzhou) Co., Ltd. | Blower and a blowing vacuum device |
| CN105986555A (en) * | 2014-11-28 | 2016-10-05 | 苏州宝时得电动工具有限公司 | Air blower |
| AU2015353128A1 (en) * | 2014-11-28 | 2016-07-07 | Positec Power Tools (Suzhou) Co., Ltd | Air blower and blower/vacuum apparatus |
| CN106609503A (en) * | 2015-10-22 | 2017-05-03 | 苏州宝时得电动工具有限公司 | Blower |
| WO2017143922A1 (en) * | 2016-02-22 | 2017-08-31 | 常州格力博有限公司 | Piggyback working appliance, piggyback blower, and control handle assembly |
| CN106108341A (en) * | 2016-08-15 | 2016-11-16 | 浙江诗杭电器有限公司 | A kind of hair-dryer |
| WO2018224985A1 (en) * | 2017-06-09 | 2018-12-13 | Husqvarna Ab | Blower with improved battery cooling |
| CN108757576A (en) * | 2018-07-26 | 2018-11-06 | 洛阳北玻台信风机技术有限责任公司 | A kind of wind turbine with special-shaped discharge pipe for burner |
| CN115217056A (en) * | 2021-04-19 | 2022-10-21 | 南京泉峰科技有限公司 | Hair drier |
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| CN104074156A (en) | 2014-10-01 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |