CN108024610A - Air-supply arrangement - Google Patents
Air-supply arrangement Download PDFInfo
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- CN108024610A CN108024610A CN201680050654.2A CN201680050654A CN108024610A CN 108024610 A CN108024610 A CN 108024610A CN 201680050654 A CN201680050654 A CN 201680050654A CN 108024610 A CN108024610 A CN 108024610A
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- Prior art keywords
- air
- silk screen
- suction
- supply arrangement
- breathing
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of air-supply arrangement, it can significantly cut down the sinuous flow noise that the inner face central portion in suction grid easily produces, and reduces the noise of device entirety simultaneously mute.Be configured with Air Blast fan (4) in the inside of the body shell (1) of tubular, between the Air Blast fan (4) and the rear aperture (9) of body shell (1) before and after the air-breathing body (12) of configuration suction grid (11) and tubular.Adjacent suction grid (11) possesses the curved ventilation silk screen (23) of the inner concave bending bloated to Air Blast fan (4) and in the prominent mounting portion (24) of the periphery of ventilation silk screen (23) with Air Blast fan (4).Air-breathing body (12) is installed on the rear aperture (9) of body shell (1), is possessing suction inlet (29) from the rearward prominent cylinder end of rear aperture (9).Make suction grid (11) mounting portion (24) be located at than air-breathing body (12) front end on the front.
Description
Technical field
The present invention relates to the air-supply arrangement such as hair dryer that suction grid is set in suction inlet, more particularly to can reduce when using
Air-supply noise noise content air-supply arrangement.
Background technology
It is known in the fan heater of patent document 1 to cover suction using dual suction grid on the present invention
The cell structure of mouth.Therefore, the mistake that possesses funnelform frame inner face is detachably installed in the suction inlet of cylindric main part
Filter installing frame, inner circumferential surface and outer circumferential surface it is each on configure internal filter and external filter.Internal filter and outer filtering
Using metal mesh material as raw material, it is dome-shaped to be formed as external drum for device.
In the hair dryer of the present invention, the suction inlet grill-shaped for making adjacently to configure with Air Blast fan becomes indent dome
Shape, this cell structure are known in patent document.Therefore, it is dome-type that indent is installed on cylindric air entry
Air entry guide part (suction grid).In addition, making the outside diameter of fan relative to the internal diameter of body shell be less than 80%, wind is eliminated
The generation of friction vortex between fan and fan guide part simultaneously reduces vortex sound (noise).
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2009-028437 publications (the 0022nd section, Fig. 5)
Patent document 2：Japanese Unexamined Patent Application 59-118105 publications (9~11 row of second page left column, the 1st figure)
The content of the invention
Problems to be solved by the invention
According to the fan heater of patent document 1, the internal filter of inside and outside dual and external filter can be utilized to prevent dirt
Angstrom entrance simultaneously improves dust removing performance.Further, since the frame inner face of filter installing frame is formed as funnel-form, accordingly, it is capable to subtract
The flowing resistance of small frame inner face simultaneously increases air quantity.But the fan heater of patent document 1 only removes to improve dust
Go performance and internal filter and external filter are set, do not find to mention the record of the reduction of air-supply noise.
In the hair dryer of patent document 2, make the outside diameter of fan relative to the internal diameter of body shell be less than 80%, eliminate
The generation of friction vortex between fan and fan guide part simultaneously reduces vortex sound (noise).But with the heating of patent document 1
Air-supply arrangement is identical, on reducing the noise content of air entry guide part and noise of blowing, does not mention the note of both associations
Carry.
In recent years hair dryer requires that substantial amounts of dry wind can be supplied and in order to be easily processed to improve drying capacity
It is and small-sized and compact.In order to quantify dry wind strong wind, the fan diameter for increasing Air Blast fan is effective, if but in this way, sending
Wind part is maximized, therefore, it is impossible to make hair dryer minimize and densification.In most cases, by maintaining to make air-supply wind
The fan diameter of fan is small and enhancing drives revolution, makes the big quantization of dry wind of hair dryer.But the if driving of increase Air Blast fan
Revolution, then can not avoid the noise content of hair dryer increases, if especially the driving revolution of Air Blast fan is 10000rpm or so, by
The air velocity of Air Blast fan suction becomes larger, as it does so, easily producing larger ear-piercing air-supply noise.
It is an object of the invention to provide can significantly suppress sinuous flow noise, blow noise and to reduce the noise of device entirety
And the air-supply arrangement of mute.
It is an object of the invention to provide the structure that can improve suction grid and significantly suppress sinuous flow noise, it is and conventional
Noise-proof structure is compared, and can reduce the air-supply arrangement of overall noise and mute with low cost.
Suppress it is an object of the invention to provide the structure that Air Blast fan is also improved except suction grid and significantly air-supply
Noise, compared with conventional noise-proof structure, can reduce the air-supply arrangement of overall noise and mute with low cost.
The method used for solving the problem
And the noise that produces, (rotation is made an uproar by being rotated by Air Blast fan by the noise of the air-supply arrangements such as hair dryer most of
Sound), as produced by the fan blade of Air Blast fan whirlpool, peel off caused by noise (blade noise), caused by the disorder flowed
Noise (sinuous flow noise), space in blower-casting resonance caused by noise (resonance noise) occupy.In addition, from suction
In the ventilation distance of grid to the Air Blast fan air-supply arrangement bigger than fan diameter, it is known that sinuous flow noise easily becomes larger.This be because
For it is inclined to be drawn into most of peripheral part to suction grid of the air stream of Air Blast fan by suction grid, convex with fan
The central portion inner face of the suction grid of platform face, the air stream for having passed through suction grid are stagnated and produce vortex, and sinuous flow noise becomes
Greatly.The present inventor studies the structure of existing air-supply arrangement based on the experience again, is tried especially with respect to sinuous flow noise
Mistake, experiment as a result, reaching the principle of the present invention, it is proposed that the present invention.
The air-supply arrangement of the present invention configures Air Blast fan 4 in the inside of the body shell 1 of tubular, at the rear of the fan 4
Configure the air-breathing body 12 of suction grid 11 and tubular.The suction grid 11 abutted with Air Blast fan 4, which possesses to Air Blast fan 4, to be bloated
Inner concave bending it is curved ventilation silk screen 23, ventilation silk screen 23 periphery protrude mounting portion 24.Air-breathing body 12 has at cylinder rear
Standby suction inlet 29.In this air-supply arrangement, the mounting portion 24 of suction grid 11 be located at than air-breathing body 12 cylinder front end on the front.
Make suction grid 11 ventilation silk screen 23 curved top portion 40 and Air Blast fan 4 fan boss 4b it is opposed between
When being divided into a, making the longitudinal separation of the curved top portion 40 from the mounting portion 24 of suction grid 11 to ventilation silk screen 23 be b, with opposed
Interval a and longitudinal separation b meets inequality a<The mode of b configures suction grid 11.
To make the longitudinal separation from the mounting portion 24 of suction grid 11 to the curved top portion 40 of ventilation silk screen 23 be b, make from
When the longitudinal separation of the opening face of the suction inlet 29 of air-breathing body 12 to the venthole 25 of the ventilation silk screen 23 of suction grid 11 is e,
Inequality b is met with longitudinal separation b and longitudinal separation a<The mode of e configures suction grid 11.
Make from the opening face of the suction inlet 29 of air-breathing body 12 to the longitudinal separation of the mounting portion 24 of suction grid 11 for d,
Make the mounting portion 24 of suction grid 11 and the fan blade 4a of Air Blast fan 4 it is opposed at intervals of c when, with longitudinal separation d and right
Put interval c and meet inequality c<The mode of d configures suction grid 11.
Make the opening face of the aperture area of the ventilation silk screen 23 of suction grid 11 for A, the suction inlet 29 for making air-breathing body 12
When product is C, inequality A ≒ are met with aperture area A and aperture area C<The mode of C is set.The structure with air-breathing body 12 not
Premised on the situation that air-breathing silk screen 30 is set.
In the suction inlet 29 of air-breathing body 12, air-breathing silk screen 30 is set.In the opening face for the ventilation silk screen 23 for making suction grid 11
Product is A, when making the aperture area of air-breathing silk screen 30 of air-breathing body 12 be B, meets inequality A with aperture area A and aperture area B
≒<The mode of B is set.The structure is premised on the situation for setting air-breathing silk screen 30 in air-breathing body 12.
Suction inlet 29 is set in the tube rear end of air-breathing body 12, is set in cylinder front end and sends out mouth 31.Make the suction of air-breathing body 12
When the aperture area of entrance 29 is C, the aperture area of submitting mouth 31 is D, inequality C is met with aperture area C and aperture area D
<The mode of D is set.
Make the suction inlet 29 of air-breathing body 12 and send out each of mouth 31 to be formed as tubular, utilize section smoothly curved S
The barrel 32 that expands of shape makes both continuous between 29,31.
Air-breathing body 12 detachably links relative to body shell 1.
Other air-supply arrangements of the present invention configure wind in the inside for the body shell 1 for possessing rear aperture 9 and blow-off outlet 13
Fan case body 6, the blower-casting 6 support motor 5 and Air Blast fan 4, at least cover around Air Blast fan 4.Blower-casting 6 is at it
Configuration is in body shell 1 in the state of entrance 6a and outlet 6b is located between the rear aperture 9 of body shell 1 and blow-off outlet 13
It is interior.As shown in figure 8, the suction grid 11 of entrance 6a configuration covering entrances 6a in blower-casting 6.Suction grid 11 possesses logical
Gas silk screen 23, be arranged on ventilation silk screen 23 periphery mounting portion 24.Mounting portion 24 is being fixed on entering for blower-casting 6
In the state of mouth 6a, ventilation silk screen 23 is bloated from the entrance 6a of blower-casting 6 to Air Blast fan 4.In addition, " blower-casting 6 is at it
Configuration is in body shell 1 in the state of entrance 6a and outlet 6b is located between the rear aperture 9 of body shell 1 and blow-off outlet 13
It is interior " do not imply that with rear aperture 9 as position reference, the entrance 6a of blower-casting 6 is positioned at than rear aperture 9 on the front.For example,
The entrance 6a of blower-casting 6 can rearward be protruded from rear aperture 9, in this case, by using the placket of air-breathing body 12
45 and rear cylinder 46 cover blower-casting 6 entrance 6a and rear aperture 9 between, extraneous air can swimmingly be imported blower-casting
6 inside.
As shown in figure 13, the mounting portion 24 of suction grid 11 by ventilation silk screen 23 periphery interior engaging wall 60 and with interior card
60 wild cards for being continuously bent into L-shaped that combine harmoniously, which combine harmoniously, 61 is configured to multiple tubular.Mounting portion 24 is being installed on blower-casting 6
Entrance 6a in the state of, wild card combines harmoniously 61 to be engaged with the outer circumferential surface of blower-casting 6.
The many places for engaging wall 61 outside are integrally provided engagement pawl 62, are provided projectingly and block in the outer circumferential surface of blower-casting 6
Close the corresponding engaging rib 63 of pawl 62.In the state of mounting portion 24 is installed on the entrance 6a of blower-casting 6, engagement pawl 62 and card
Close rib 63 to engage, suction grid 11 is fixed on blower-casting 6 to be unable to relative movement mode.
The ventilation silk screen 23 of suction grid 11 to 4 indent of Air Blast fan and bloat be bending.
The air-breathing body 12 for possessing suction inlet 29 is installed in the rear aperture 9 of body shell 1.Air-breathing body 12 possesses from suction
The barrel 32 that 29 leaked-in airs of mouth are guided to ventilation silk screen 23.The mounting portion 24 of suction grid 11 is located at the cylinder than air-breathing body 12
Front end is on the front.The suction inlet 29 and submitting each of mouth 31 for making air-breathing body 12 are formed as tubular, are swimmingly bent using section
The barrel 32 that expands make both continuous between 29,31 (with reference to Fig. 8).
Towards the suction inlet 29 of air-breathing body 12, rectification silk screen 30 of the configuration as first filter 47.As shown in Figure 10, it is whole
Stream silk screen 30 is by being configured to multiple rectification ribs 56 of concentric circles and supporting the intersecting rib 57 of multiple rectification ribs 56 to form.
In the state of air-breathing body 12 is installed on the rear aperture 9 of body shell 1, cylinder front end and the fan of mouth 31 are sent out
Housing 6 together clamps the mounting portion 24 of suction grid 11.
As shown in figure 12, the thickness T of the ventilation silk screen 23 of suction grid 11 is set as the ventilation direction than rectification rib 56
Rib length L1 is small.The rib thickness L2 of rectification rib 56 is set as that the rib length L1 in the ventilation direction than rectification rib 56 is small.
Possesses one smaller than first filter 47 in the side configuration with the opposed faces of suction grid 11 of rectification silk screen 30
Second filter 48 of the eyed structure of group venthole 48a.Second filter 48 is by bending laminal soft material freely
Formed, rectification silk screen 30 is formed by the material than 48 hard of the second filter.Second filter 48 and the adjoining of rectification silk screen 30 are matched somebody with somebody
Put.Air-breathing body 12 is made of the rear cylinder 46 for possessing the placket 45 of barrel 32 He possessing suction inlet 29.Utilize placket 45 and rear cylinder 46
Clamp the periphery of the second filter 48.It is being the same face with cylinder end face 51 in the cylinder end face 51 of the placket 45 abutted with rear cylinder 46
In the state of set support the frame 49 support frame 50.Second filter 48 is fixed on an end face 51 and central branches support frame 49 and branch
Support frame 50.
Configuration possesses the pressing of the barrel 69 of the periphery of the second filter 48 of covering around the cylinder end face 51 of placket 45
Ring 68.Cylinder 46 is installed on the rear aperture 9 of body shell 1 afterwards.In the state of rear cylinder 6 is installed on rear aperture 9, after utilization
Cylinder 46 will be pressed and fixed to placket 45 by pressure ring 68 around the cylinder end face 51 for being installed on placket 45.
In the state of rear cylinder 46 is installed on rear aperture 9, central branches support frame 49 and support frame 50 and rectification silk are utilized
Net 30 clamps the front and rear two sides of the second filter 48.Ensure gap E between the second filter 48 and the cylinder front end of rear cylinder 46.
In the operating condition for the clearance space configuration control air-supply arrangement being formed between body shell 1 and blower-casting 6
Control base board 90,91.
Air Blast fan 4 is configured to configure multiple fan blade 4a around fan boss 4b.In the rotation of fan blade 4a
Each upper formed for turning the blade inlet edge in direction downstream and the trailing edge of the direction of rotation upstream side of fan blade 4a is reduced
The preceding concavo-convex edge 85 and rear concavo-convex edge 86 of fan noise.
The adjoining spacing P1 of the recess 85a of preceding concavo-convex edge 85 is set as between the adjoining than the recess 86a of rear concavo-convex edge 86
It is big away from P2.The concavo-convex depth j1 of preceding concavo-convex edge 85 is set as smaller than the concavo-convex depth j2 of rear concavo-convex edge 86.
The recess 86a's of the recess 85a of concavo-convex edge 85 and rear concavo-convex edge 86 is each before being formed using bending edge.By preceding bumps
The bending radius k1 of the recess 85a of edge 85 is set as that the bending radius k2 of the recess 86a than rear concavo-convex edge 86 is big.
Blade 4a is formed by fibre reinforced plastics material.
Invention effect
In the air-supply arrangement of the present invention, the air-breathing body of suction grid 11 and tubular is configured with the rear of Air Blast fan 4
12.In addition, setting the curved ventilation silk screen 23 of inner concave bending in suction grid 11, the mounting portion 24 of suction grid 11 is set to be located at than inhaling
The cylinder front end of gas 12 on the front, can eliminate air stream and be trapped between ventilation silk screen 23 and the fan boss 4b of Air Blast fan 4
And easily produce the situation in the space of vortex.In addition, by making cylinder rearward openings of the suction inlet 29 to air-breathing body 12, it can utilize and inhale
Gas 12 carries out rectification to the air stream being inhaled into from suction inlet 29 to suction grid 11.
As described above, air-supply arrangement according to the present invention, can be while suction will be passed through by the air stream after 12 rectification of air-breathing body
The ventilation silk screen 23 for entering grid 11 supplies to fan 4 and eliminates the formation easily generation between ventilation silk screen 23 and fan boss 4b
The situation of the detention space of sinuous flow noise.Therefore, with that can not avoid the formation of easily sinuous flow is produced in the center of inside of suction grid
The existing apparatus of the situation of the detention space of noise is compared, and can be provided the yield for significantly suppressing sinuous flow noise, correspondingly be subtracted
The noise volume of few overall noise and the air-supply arrangement of mute.
If by the longitudinal separation b from the mounting portion 24 of suction grid 11 to curved top portion 40 be set as than curved top portion 40 with
The opposed interval a of fan boss 4b is big, then eliminating the formation between ventilation silk screen 23 and fan boss 4, easily generation sinuous flow is made an uproar
The situation of the detention space of sound, and the degree of crook of the ventilation silk screen 23 of inner concavity can be increased.Further, since ventilation silk screen 23
Degree of crook it is bigger, the area of the peripheral part of the ventilation silk screen 23 in the region big towards the flow velocity of air stream more increases, because
This, can reduce the throughput of the central air stream of ventilation silk screen 23.Accordingly, it is capable to air stream is reliably prevented to be trapped in ventilation silk
Space between net 23 and fan boss 4b and produce vortex, prevent sinuous flow noise.
If the longitudinal separation e from the opening face of suction inlet 29 to the venthole 25 of ventilation silk screen 23 is set as than from mounting portion
The longitudinal separation b of 24 to curved top portion 40 is big, then using the cylinder main body 28 of tubular to reaching ventilation silk screen 23 from suction inlet 29
Air stream carries out rectification, can suppress the generation of the sinuous flow of the inside of cylinder main body 28.In addition, cylinder main body 28 can be utilized to make Air Blast fan
4 Rotation Noise, the blade sound attenuation of fan blade 4a.Accordingly, it is capable to it is utilized the suppression of the sinuous flow noise of ventilation silk screen 23
Effect processed and the effect that is multiplied of sound attenuation effect obtained by cylinder main body 28, reduce the overall noise of hair dryer.
If the longitudinal separation d from the opening face of suction inlet 29 to mounting portion 24 is set as than mounting portion 24 and fan blade 4a
Opposed interval c it is big, then using cylinder main body 28 and ventilation silk screen 23 to being inhaled into and reaching fan blade 4a's from suction inlet 29
The air stream of blade edge carries out rectification, can suppress the inside of cylinder main body 28 and the blower-casting 6 towards ventilation silk screen 23
The generation of internal sinuous flow.Silk screen 23 is ventilated in addition, can utilize and cylinder main body 28 makes the Rotation Noise of Air Blast fan 4, fan leaf
The blade sound attenuation of piece 4a.Therefore, except the minimizing effect of the sinuous flow noise using silk screen 23 of ventilating, moreover it is possible to by using logical
The sound attenuation effect of gas silk screen 23 and cylinder main body 28, further reduces the overall noise of hair dryer.
If making the aperture area C of suction inlet 29 roughly the same with the aperture area A for silk screen 23 of ventilating or than aperture area A
Greatly, then can make big by the flow velocity and the flow velocity of the air stream of the venthole 25 by silk screen 23 of ventilating of the air stream of suction inlet 29
Cause flow velocity low speed identical or than the air stream by venthole 25.In addition, it is smaller by the flow velocity of the air stream of suction inlet 29,
The flow velocity of the air stream in the entrance opening face of suction inlet 29 is more relaxed, can suppress to produce vortex, phase near suction air stream
Should the further overall noise for reducing hair dryer in ground.But since the aperture area C with suction inlet 29 is bigger, enclose sound
The tendency that more declines of effect, therefore preferably aperture area A and aperture area C is set in a manner of meeting formula A ≒ C.
If making the aperture area B of air-breathing silk screen 30 roughly the same with the aperture area A for silk screen 23 of ventilating or than aperture area A
Greatly, then the sky of the flow velocity and the venthole 25 by silk screen 23 of ventilating of the air stream of the venthole 33 by air-breathing silk screen 30 can be made
The flow velocity of air-flow is roughly the same or compares the flow velocity low speed of the air stream by venthole 25.Pass through the stream of the air stream of venthole 33
Speed is smaller, more makes to relax by the stream by air stream of venthole 33, suppresses to pass through air stream after by venthole 33
Near produce the situation of vortex, correspondingly can further reduce the overall noise of hair dryer.But due to air-breathing silk screen
30 aperture area B is bigger, then the effect of inclosure sound is smaller, it is therefore preferable that meeting formula A with aperture area A and aperture area B
The mode of ≒ B is set.
If send out mouth 31 aperture area D be set as it is bigger than the aperture area C of suction inlet 29, it is small using aperture area
Suction inlet 29, which is enclosed, has passed through the ventilation Rotation Noise of Air Blast fan 4 of silk screen 23, the blade noise of fan blade 4a to suction
The situations that mouth 29 leaks out, can further reduce the overall noise of hair dryer.More preferably in the pass of aperture area A and aperture area C
Be for A ≒ C when be C<D, and be C when the relation of aperture area A and aperture area B are A ≒ B<D.
If making the suction inlet 29 of tubular and sending out mouth 31 to expand barrel 32 smoothly continuously using S shape, make from suction
Entrance 29 is round and smooth to the air stream sent out between mouth 31, can will suck air and effectively be supplied to the fan blade 4a of Air Blast fan 4
Give.Accordingly, it is capable to strengthen the air output of the dry wind supplied from Air Blast fan 4, the draft capacity of hair dryer is improved.In addition, pass through
Make from suction inlet 29 to send out mouth 31 air stream it is round and smooth, can reliably prevent expand barrel 32 inside produce whirlpool
Stream.
If air-breathing body 12 is detachably linked relative to body shell 1, by by air-breathing body 12 from body shell 1
Unload, cylinder main body 28 and air-breathing silk screen 30 can be washed, in addition, dust for being attached to ventilation silk screen 23 etc. can be removed.Cause
This, also can be by carrying out the maintenance of suction grid 11 and air-breathing body 12, reliably in the case of long-time service air-supply arrangement
Ground plays the reduction of sinuous flow noise, sound attenuation effect.
In other air-supply arrangements of the present invention, suction grid 11 is configured in the entrance 6a of blower-casting 6, using sucking lattice
Entrance 6a before the ventilation covering of silk screen 23 of grid 11.In addition, make ventilation silk screen 23 from the entrance 6a of blower-casting 6 to air-supply wind
The bulging of fan 4, reduces the resonant space in blower-casting 6, and eliminates and form air stream delay and easily produce the space of vortex
Situation.Therefore, with can not avoid the center of inside in suction grid easily produce sinuous flow noise detention space existing apparatus
Compare, the amplification for suppressing the noise with resonance can be provided, significantly suppress the yield of sinuous flow noise, should be able to mutually reduce overall make an uproar
The noise volume of sound and the air-supply arrangement of mute.Further, since the mounting portion 24 for the periphery for being located at ventilation silk screen 23 is installed
The entrance 6a of blower-casting 6 is fixed on, therefore silk screen 23 of ventilating can be utilized to suppress the situation that blower-casting 6 wants vibration, can be subtracted
The generation of few noise vibrated with blower-casting 6.
Using interior engaging wall 60, with it is interior engage 60 continuous wild card of wall and combine harmoniously 61 mounting portion 24 is configured to multiple cylinder
Shape, in the state of mounting portion 24 is installed on the entrance 6a of blower-casting 6, interior engaging wall 60 and wild card combine harmoniously and 61 are held in curb pins
The barrel of blower-casting 6.According to the mounting structure of this suction grid 11, it can make the suction grid 11 can not be relative to fan hub
Body 6 is fixed in the state of moving radially, the structure for the 61 enhancing blower-castings 6 that can be combined harmoniously using the wild card closely sealed with housing side face
Intensity.Accordingly, it is capable to reliably prevent from being subject to the blower-casting 6 of the vibration of motor 5, suction grid 11 to vibrate or collide with each other alone
And produce vibrating noise and reduce air-supply noise.
In the state of mounting portion 24 is installed on the entrance 6a of blower-casting 6,62 He of engagement pawl mutually to fasten is utilized
Suction grid 11 cannot be relatively movably fixed on blower-casting 6 by engaging rib 63, can be by suction grid 11 relative to fan hub
Body 6 is further firmly fixed.In detail, except wild card combine harmoniously 61 with the housing side face of blower-casting 6 it is closely sealed in addition to, can lead to
Cross engagement pawl 62 and engaging rib 63 engages, limit the movement of the direction of ventilation of suction grid 11, can be by 24 closely sealed fixation of mounting portion
In the end face of entrance 6a.Accordingly, it is capable to further reliably prevent from receiving blower-casting 6, the suction grid 11 of the vibration of motor 5
Vibrate alone or collide with each other and produce the situation of vibrating noise.
If the bulging of ventilation silk screen 23 is shaped so as to the bending to 4 indent of Air Blast fan, it can strongly make ventilation silk
The cross-section structure of net 23 is simplified, and effectively eliminates and resonant space or formation are formed between ventilation silk screen 23 and Air Blast fan 4
Easily produce the situation in the space of vortex.In addition, cross-section structure can be simplified, the processing of ventilation silk screen 23 can be correspondingly cut down
Cost, saves the cost for mute.
If setting the air-breathing body 12 for possessing suction inlet 29 in rear aperture 9, barrel 32 is set on air-breathing body 12, then from suction
29 leaked-in air stream of entrance is guided by barrel 32, can carry out rectification during being flowed to suction grid 11.Accordingly, it is capable to eliminate
Formed between suction grid 11 and suction inlet 29 and easily produce the detention space of sinuous flow noise and reduce noise content.In addition, by
In covering the noise that is produced in Air Blast fan 4 using barrel 32, the noise content discharged from suction inlet 29 is reduced, accordingly, it is capable to
The noise attenuation effect obtained using suction grid 11 is corresponding, further cuts down overall noise and mute.Therefore, with it is conventional
Noise-proof structure is compared, can improve with low cost reduce overall noise simultaneously can mute air-supply arrangement.Further, since utilize
Section smoothly it is curved expand barrel 32 make the suction inlet 29 of air-breathing body 12 and send out it is continuous between mouth 31, accordingly, it is capable to make from
Suction inlet 29 is further round and smooth to the air stream sent out between mouth 31, can be by suction air effectively to the fan of Air Blast fan 4
Blade 4a is supplied.Accordingly, it is capable to strengthen the air output of the dry wind supplied from Air Blast fan 4, the draft capacity of hair dryer is improved.Separately
Outside, can be by from suction inlet 29 to air stream round and smoothization sent out mouth 31, reliably preventing from expanding the inside of barrel 32
Produce the situation of vortex.
If the configuration of suction inlet 29 towards air-breathing body 12 doubles as the rectification silk screen 30 of first filter 47, rectification silk is utilized
Net can carry out rectification to carrying out rectification from 29 leaked-in air stream of suction inlet using barrel 32, accordingly, it is capable to further improve profit
With the rectification effect of air-breathing body 12.Even if in addition, rectification silk screen 30 as prevent larger dust, hair etc. together with air by
The first filter 47 of the situation of suction also works, accordingly, it is capable to prevent from being configured at than rectification silk screen 30 by the equipment on the downside of wind
Be stained, prevent wind pushing performance from declining.In addition, according to the multiple rectification ribs 56 by concentric circles configured, support multiple rectifications
The rectification silk screen 30 that the intersecting rib 57 of rib 56 is formed, can further reduce from 29 leaked-in air of suction inlet circulation over commutation silk screen
The yield of noise when 30 simultaneously contributes to mute.For example, the situation of the rectification silk screen in the ventilation face for possessing funnel structure
Under, the rectification effect of higher is obtained, but since the noise that air stream is collided and produced with funnel structure is big, be not suitable for reducing
Blow noise and mute.
In the state of air-breathing body 12 is installed on the rear aperture 9 of body shell 1, if utilizing the cylinder front end for sending out mouth 31
With blower-casting 6 clamp suction grid 11 mounting portion 24, then can more firmly fan attachment housing 6 install suction grid
11。
If the thickness T of the ventilation silk screen 23 of suction grid 11 is set as the rib length L1 in the ventilation direction than rectification rib 56
It is small, then it can improve the rectification effect using suction inlet 29 and improve muting function.In addition, if the rib thickness T2 of rectification rib 56 is than whole
It is small to flow the rib length L1 in the ventilation direction of rib 56, then can effectively play rectification effect and be blocked using rectification rib 56 and be inhaled
Entrance 29 simultaneously prevents flowing resistance from becoming larger, therefore can improve the air supply efficiency using Air Blast fan 4.
If possess in the side configuration with the opposed faces of suction grid 11 of rectification silk screen 30 smaller than first filter 47
Second filter 48 of the eyed structure of one group of venthole 48a, then can be more reliably prevented from small dust, hair etc. and be inhaled into suction
Enter the situation of 11 side of grid.If forming the second filter 48 using laminal softwood matter, rectification silk screen 30 is by than the second filtering
The material of 48 hard of device is formed, then can protect the second filter 48 formed by soft material using rectification silk screen 30.For example,
In the case of attracting using vacuum cleaner and remove the dust etc. for being attached to the second filter 48, rectification silk screen 30 can be utilized anti-
The only superfluous ground flexural deformation of the second filter 48 and breakage.If possess the rear cylinder 46 of suction inlet 29 and form air-breathing using placket 45
Body 12 and the periphery that the second filter 48 is clamped using placket 45 and rear cylinder 46, then can reliably prevent what is formed by soft material
Second filter 48 is subject to external force and reliably prevents from separating from air-breathing body 12.Further, since pressed from both sides using placket 45 and rear cylinder 46
The periphery of the second filter 48 is held, therefore, there is no need to set other filter installation structures, can correspondingly cut down air-supply arrangement
Cost.If the second filter 48 is fixed on the cylinder end face 51 for being located at placket 45, central branches support frame 49 and support frame 50, outside
Portion's air to Air Blast fan 4 be inhaled into when, prevent the second filter 48 to be subject to wind pressure and bent to direction of ventilation, this can be filtered
Device 48 remains appropriate state.Accordingly, it is capable to the extraneous air being inhaled into from suction inlet 29 is always carried out at steady-state
The second filter of utilization 48 filtering, will can be kept than the suction grid 11 of 48 downstream of the second filter, Air Blast fan 4
For clean state.
Pressure ring 68 is pressed in installation around the cylinder end face 51 in placket 45, and rear cylinder 46 is installed on to the state of rear aperture 9
Under, if cylinder 46 presses fixation to placket 45 after being utilized by pressure ring 68, it can utilize and firmly fix the second filtering by pressure ring 68
The periphery of device 48, can reliably prevent the second filter 48 from being left from placket 45.In addition, using hair dryer when, can prevent by
Pressure ring 68 moves about and is securely fixed in front-rear direction.
If before and after central branches support frame 49 and support frame 50 and this three the second filter 48 of clamping of rectification silk screen 30
Face, can utilize above-mentioned three to limit the second both sides' flexural deformation forwards, backwards of filter 48, can more reliably carry out holding fixation.Cause
This, even in Action of Wind pressure caused by the air-supply effect as Air Blast fan 4 in the second filter 48, or vacuum cleaner is true
In the case that pneumatics power is acted on, the second filter 48 significantly flexural deformation and breakage also can be reliably prevented.By after
Cylinder 46 is installed in the state of rear aperture 9, if ensuring gap E between the second filter 48 and the cylinder front end of rear cylinder 46,
It is avoided that the situation that the periphery of the second filter 48 is pressed by the cylinder front end of rear cylinder 46, eliminates stress and be applied to the second filter 48
Periphery situation.Accordingly, it is capable to prevent the peripheral part earlier breakage of the second filter 48 that can be by suction inlet 29 visually
Situation.
If in the operating shape for the clearance space configuration control air-supply arrangement being formed between body shell 1 and blower-casting 6
The control base board 90,91 of state, then can utilize control base board 90,91 to cover the air-supply noise outside blower-casting 6 to outside body shell 1
Distribute, the quietness of air-supply arrangement can be improved.
Concavo-convex edge 85 and rear concavo-convex edge 86 before being formed on the blade inlet edge of fan blade 4a and each of trailing edge, then
Fan noise during rotation driving Air Blast fan 4 can be reduced.In detail, if concavo-convex edge 85 before setting, fan leaf is being utilized
During the pressurized plane extrusion air of piece 4a, the recess 85a and convex portion 85b of preceding concavo-convex edge 85 can be utilized to act on the air of blade inlet edge
Extrusion reaction force, accordingly, it is capable to suppress the situation that blade inlet edge vibrates to vane thickness direction and produces noise.In addition, energy
The opportunity of the pressurized plane extrusion blade inlet edge using blade inlet edge is staggered in recess 85a and convex portion 85b, blade inlet edge can be suppressed
Overall vibrated at the same time to vane thickness direction.Equally, if concavo-convex edge 86, air-flow and suction surface in pressurization surface side after setting
The air-flow of side is when trailing edge collaborates, and in recess 86a, interflow occurs earlier, and in convex portion 86b, interflow occurs sluggishly, because
This, carries out the interflow of two air-flows at leisure.As a result, to being finely divided of backwash produced in trailing edge, swum after blade
Speed loss diminish.Accordingly, it is capable to the speed loss for suppressing the noise of the vibration of adjoint blade inlet edge at the same time and being swum after blade
Noise in the case of big, can reduce fan noise.
If the adjoining spacing P1 of the recess 85a of preceding concavo-convex edge 85 is set as to the adjoining of the recess 86a than rear concavo-convex edge 86
Spacing P2 is big, then the area of the convex portion 85b of concavo-convex edge 85, improves the structural strength of convex portion 85b, accordingly, it is capable to press down before increasing
Convex portion 85b processed vibrates to vane thickness direction and further effectively inhibits generation noise.If in addition, by the recessed of preceding concavo-convex edge 85
Convex depth j1 is set as smaller than the concavo-convex depth j2 of rear concavo-convex edge 86, then bumps depth j1 is difficult to bend with small amount, accordingly, it is capable to
The convex portion 85b of concavo-convex edge 85 vibrates to vane thickness direction and produces the situation of noise before effectively inhibiting.
If the bending radius k1 of the recess 85a of preceding concavo-convex edge 85 is set as to the bending of the recess 86a than rear concavo-convex edge 86
Radius k2 is big, then the change of the section of the convex portion 85b of preceding concavo-convex edge 85 can be made to slow down, structural strength is improved, correspondingly can more have
The convex portion 85b of bumps edge 85 vibrates to vane thickness direction and produces noise before effect ground suppresses.
If forming fan blade 4a using fibre reinforced plastics material, with only utilizing plastic material to form fan blade 4a
Situation compare, the structural strength of fan blade 4a can be improved and be difficult to vibrate, can reduce based on fan blade 4a vibration feelings
The noise of condition.
Brief description of the drawings
Fig. 1 is the longitudinal cross-sectional side view of the hair dryer of the embodiment of the present invention one.
Fig. 2 is the side view of the hair dryer of embodiment one.
Fig. 3 is the longitudinal cross-sectional side view of the structure for the suction grid for representing embodiment one.
Fig. 4 is the longitudinal cross-sectional side view of the major part of the mounting structure for the air-breathing body for representing embodiment one.
Fig. 5 is the rearview of the hair dryer for the state for having separated the air-breathing body of embodiment one.
Fig. 6 be represent by the different band of the structure of suction grid Lai air-supply noise comparative result explanatory drawin.
Fig. 7 is the longitudinal cross-sectional side view of the hair dryer of the embodiment of the present invention two.
Fig. 8 is the longitudinal cross-sectional side view of the air-supply structure part of the embodiment of the present invention three.
Fig. 9 is the side view of the hair dryer of embodiment three.
Figure 10 is the decomposing rearview of the structure member for the suction grid side for representing embodiment three.
Figure 11 is the biopsy cavity marker devices decomposition side view of the peripheral structure for the suction grid for representing embodiment three.
Figure 12 is the longitudinal cross-sectional side view of the detailed construction for the air-breathing body for representing embodiment three.
Figure 13 is the sectional view of the mounting structure for the suction grid for representing embodiment three.
Figure 14 is the side view in partial cross-section of the mounting structure for the rear cylinder for representing embodiment three.
Figure 15 is the line A-A sectional view of Fig. 8.
Figure 16 is the rearview of the Air Blast fan of embodiment three.
Figure 17 is the amplification rearview of the detailed construction for the fan blade for representing embodiment three.
Figure 18 is the explanatory drawin of the relation size for the air-supply structure part for representing embodiment three.
Embodiment
(embodiment one)
Fig. 1 to Fig. 5 represents to apply the present invention to the embodiment one of hair dryer (air-supply arrangement).The present invention's is front and rear, left
It is right, up and down according to the intersecting arrow shown in Fig. 2, be marked near arrow around, upper and lower expression.In Fig. 1 to figure
In 3, hair dryer is possessed the body shell 1 being made of hollow, can foldedly be linked centered on axis 2 relative to body shell 1
Handle 3.As shown in figure 5, body shell 1 engages segmentation housing 1a, 1b of left and right and is configured to hollow tube-shape, match somebody with somebody inside it
Put motor 5, fan hub of both storages 4,5 of the Air Blast fan 4 and rotation driving of axial flow type of supply the dry wind fan 4
Body 6, heating unit 7 is adjacently configured with the blow-off outlet of blower-casting 6.Air Blast fan 4 be integrally provided with 7 fan blade 4a and
Fan boss 4b.Multiple rectifying wings 15 are set on blower-casting 6, will be pressurizeed and distorted by Air Blast fan 4 using rectifying wings 15
Air stream rectification be straight line stream, and carry out flowing guiding to heating unit 7.
Starter motor 5 or the switch to being switched over to the power supply state of heating unit 7 is set to pinch before handle 3
Hand 8.In Fig. 1, body shell 1 suction inlet side rear aperture and Air Blast fan 4 between configure suction grid 11 and cylinder
The air-breathing body 12 of shape.In addition, the installation blowout nozzle 14 on the blow-off outlet 13 of body shell 1.Heating unit 7 is by preceding tapering cylinder
The hot cylinder 17 of screening of shape, the assembled inside for hiding hot cylinder 17 for criss-cross insulation frame 18, around insulation frame 18 plus
The grade of blowout grid 20 that hot device 19 and covering hide the front end of hot cylinder 17 is formed.
In the hair dryer formed as above, for the overall noise for significantly suppressing sinuous flow noise and when reducing use,
According to the air-breathing body 12 for recording be arranged in order suction grid 11 and tubular between rear aperture 9 and Air Blast fan 4.Such as Fig. 3 institutes
Show, suction grid 11 is integrally provided with 23 He of ventilation silk screen of the spherical calotte shape (inner concave bending is curved) bloated to Air Blast fan 4
The mounting portion 24 prominent to the periphery of ventilation silk screen 23.Suction grid 11 to being with aluminium alloy plate, sheet metal, stainless sheet steel etc.
The blank of the punch metal part shape of material implements punch process and to be formed as tea strainer netted, and one group is formed on ventilation silk screen 23
Venthole 25.In this embodiment, what venthole 25 was only formed in silk screen 23 of ventilating is curved concave inward surface side, avoids venthole 25
It is formed at flange shape mounting portion 24, the boundary member of inner concave bending curved surface and mounting portion 24 (with reference to Fig. 4).Suction grid 11 by its
Mounting portion 24 is sticked in the retention groove 26 on the segmentation housing for being located at left and right, and integrated with body shell 1.In addition, mounting portion
24 need not protrude to be formed from the periphery of ventilation silk screen 23, can be to the front or behind bending shape of the periphery of ventilation silk screen 23
Into.In addition, venthole 25 can also be formed at inner concave bending curved surface and 24 both sides of mounting portion of ventilation silk screen 23.
Air-breathing body 12 possesses the cylinder main body 28 being made of cylindric plastic molded article and blocks the rear end of cylinder main body 28
The air-breathing silk screen 30 of suction inlet 29, sets in the front end of the cylinder main body 28 abutted with suction grid 11 diameter bigger than suction inlet 29
Send out mouth 31.Be formed as the suction inlet 29 of barrel shape and send out between mouth 31 that smoothly curved S shape expands using section
Barrel 32 is continuous, expands barrel 32 and is expanded in a manner of area forwards becomes larger.The rear end of suction inlet 29 is round and is formed as funnel
Shape.The punch metal part formed by the material identical with suction grid 11 is stamped into discoideus and is formed by air-breathing silk screen 30,
Its plate face forms one group of venthole 33.The area of the venthole 33 of air-breathing silk screen 30 is set as the venthole 25 with ventilation silk screen 23
Area it is roughly the same.Air-breathing silk screen 30 is inserted into when cylinder main body 28 shapes, integrated with cylinder main body 28.Air-breathing body 12 is sent out at the same time
Wave using reduced by the rectification effect that cylinder main body 28 is brought sinuous flow noise function and by air-breathing silk screen 30 it is bringing, prevent head
The function that hair, dust are sucked into blower-casting 6.In addition, air-breathing silk screen 30 can preferably play rectification effect but it is also possible to be
Be only capable of preventing hair, finger entrance structure.
In order to which air-breathing body 12 is detachably installed on body shell 1, as shown in figure 5, in cylinder main body 28 by sending out
Many places outside the barrel of mouth 31 form bayonet pawl 36, form bayonet slot 37 in the inner face of the rear aperture 9 of body shell 1 and permit
Perhaps the pawl snap openings 38 of the discrepancy of bayonet pawl 36.If in this way, air-breathing body 12 is detachably linked relative to body shell 1,
Then by the way that air-breathing body 12 is unloaded from body shell 1, cylinder main body 28 and air-breathing silk screen 30 can be washed, in addition, can wipe
It is attached to dust of ventilation silk screen 23 etc..
In the state of air-breathing body 12 is installed on body shell 1, from rear aperture 9, side protrudes its majority backward,
Rear aperture 9 is blocked by cylinder main body 28.In addition, mouth 31 is sent out by the mounting portion 24 and small gap of suction grid 11 front and rear
It is adjacent, with the amount in the gap correspondingly, the mounting portion 24 of suction grid 11 be located at than air-breathing body 12 front end on the front.In Fig. 3
In represented with symbol f from the rear end of the suction inlet 29 positioned at the rear of cylinder main body 28 to the mounting portion 24 of suction grid 11 before and after
Size.
According to the hair dryer formed as above, the air stream sucked when in use using Air Blast fan 4 from suction inlet 29
Rectification is carried out during by cylindric cylinder main body 28 and flat air-breathing silk screen 30, is flowed to suction grid 11.This
When, the air stream for having passed through air-breathing silk screen 30 is rectified and is inhaled into Air Blast fan again using silk screen 23 of ventilating, and is inhaled into
Most of peripheral part from the rotary area with fan blade 4a in the ventilation silk screen 23 of front and rear face of air stream is inhaled into.
This is because the partial negative pressure towards the rotary area of fan blade 4a is big, with fan boss 4b in the part of front and rear face
Negative pressure is small.
But the curved top portion 40 of ventilation silk screen 23 and the adjoining distance of fan boss 4b are more abundant than other wire parts
It is small.Therefore, the air stream near curved top portion 40 is reached not to be trapped between curved top portion 40 and fan boss 4b
Leeway, therefore can prevent the generation of the vortex of the delay with air stream and the generation of sinuous flow noise is greatly reduced.In addition, in ladder
The bevel edge portion of the fan boss 4b of shape is formed about the air introduced to the rotary area of fan blade 4a to radiation direction
Flow (radiation air-flow).By the secondary air, the air between curved top portion 40 and fan boss 4b is by the rotation to fan blade 4a
Turn region and be sleekly sent into also to be trapped between fan boss 4b and curved top portion 40 to eliminating air stream and produce the feelings of vortex
Condition is favourable.In this way, suction grid 11 produces the situation of sinuous flow noise and sets to reduce the delay with air stream.
By measuring the air-supply noise of hair dryer configured as described, the air-supply noise phase with the hair dryer of existing structure
Than, it is thus identified that can be which kind of degree by air-supply lower noise.On measure air-supply noise, as shown in fig. 6, leaving rear aperture
The loudspeaker 43 of 9 one meters of position configuration noisemeter 42, measures the noise volume of overall noise.Air Blast fan at this time
4 driving revolution is set as 9500rpm.In figure 6, the hair dryer of the superiors is provided with the entrance opening of blower-casting 6
The situation of suction grid 11, the hair dryer of the second layer represent that the entrance opening in blower-casting 6 is provided with suction grid 11 and inhales
The situation of the cylinder main body 28 of gas 12.But it is not provided with air-breathing silk screen 30 in the cylinder main body 28 of the hair dryer of the second layer.3rd
The hair dryer of layer represents that the entrance opening in blower-casting 6 is not provided with the situation (comparative example) of suction grid, and undermost electricity is blown
Wind represents that the entrance opening in blower-casting 6 is equipped with the situation (conventional example) of the dome-type suction grid 52 of external drum.Beyond above-mentioned
Hair dryer structural condition it is identical.In addition, in third layer and undermost hair dryer, blown in the electricity of the superiors and the second layer
Wind facies with component on mark identical symbol, make an uproar from the superiors to illustrating near the loudspeaker 43 of undermost each figure
The measured value of sound volume.
If observation noisemeter 42 measurement as a result, if the present invention the superiors hair dryer in, the noise of overall noise
Volume is 61dB, and in the hair dryer of the second layer, the noise volume of overall noise is 60dB.In addition, in the third layer of comparative example
Hair dryer in, the noise volume of overall noise is 67dB, in the undermost hair dryer of conventional example, the noise of overall noise
Volume is 66dB.According to the measurement as a result, in the hair dryer of the third layer of comparative example, due to the Rotation Noise of Air Blast fan 4
Directly discharged from the rear aperture 9 of body shell 1 with blade noise, it is taken as that the noise volume of overall noise reaches maximum
67dB.In the undermost hair dryer of conventional example, Rotation Noise and the blade noise of Air Blast fan 4 are inhaled into grid 11 and hide
Cover, still, in the inner face of the curved top portion of suction grid 52, air trapping and produce vortex, therefore, the noise sound of overall noise
Amount reaches 66dB, and effect can not almost be expected by only reducing noise using suction grid 52.
In the entrance opening of blower-casting 6 only sets the hair dryer of the superiors of suction grid 11, suction grid is utilized
11, air trapping can be eliminated between curved top portion 40 and fan boss 4b and produce the situation of vortex, it is therefore, and existing
Example is compared, and the noise volume of overall noise can be significantly reduced to 61dB.In passing, since noise volume is logarithmic function, because
This, in the example of the hair dryer of the superiors, compared with the hair dryer of the third layer of comparative example, can reduce the noise content of physics
To only about half of left and right.In addition, in the hair dryer of the second layer of embodiment, by except suction grid 11, also setting up cylinder master
Body 28, can be reduced to 60dB to carrying out rectification by the air of cylinder main body 28 by the noise volume of overall noise.Such as in embodiment
Middle explanation is such, and except suction grid 11, in the case of being additionally provided with the air-breathing body 12 for possessing air-breathing silk screen 30, energy is further
Reduce 1dB or so.
Except above-mentioned noise reduction structure, in order to also effectively further reduce sinuous flow noise, blown in the electricity of embodiment
In wind, Air Blast fan 4 and the relation size of suction grid 11 and air-breathing body 12 etc. are set as follows.
As shown in figure 3, in the curved top portion 40 and the fan boss of Air Blast fan 4 of the ventilation silk screen 23 for making suction grid 11
4b it is opposed at intervals of a, make the longitudinal separation from the mounting portion 24 of suction grid 11 to the curved top portion 40 of ventilation silk screen 23 be b
When, inequality a is met with opposed interval a and longitudinal separation b<The mode of b configures suction grid 11.
If longitudinal separation b is set as above it is bigger than opposed interval a, can eliminate ventilation silk screen 23 and fan it is convex
The situation for the detention space for easily producing sinuous flow noise is formed between platform 4b, and the bending journey of the ventilation silk screen 23 of inner concavity can be made
Degree becomes larger.Further, since the degree of crook of ventilation silk screen 23 is bigger, the ventilation silk screen 23 in the region big towards the flow velocity of air stream
The area of peripheral part more increase, accordingly, it is capable to reduce the throughput of the central air stream of ventilation silk screen 23.Accordingly, it is capable to can
Air trapping is prevented between ventilation silk screen 23 and fan boss 4b by ground, prevents to be vortexed and prevent sinuous flow noise.
According to the reason, a as to satisfy the inequality<The mode of b configures suction grid 11.
By the way, if since the bending radius for silk screen 23 of ventilating is big, degree of crook diminishes, and the flow velocity towards air stream is big
The area of peripheral part of ventilation silk screen 23 in region diminish, therefore, the throughput of the central air stream for silk screen 23 of ventilating
Increase.In the above-described embodiment, about 4 times that longitudinal separation b is opposed interval a, the area big towards the flow velocity of air stream are made
The area of the peripheral part of the ventilation silk screen 23 in domain becomes fully big.
To make the longitudinal separation from the mounting portion 24 of suction grid 11 to the curved top portion 40 of ventilation silk screen 23 be b, make from
When the longitudinal separation of the opening face of the suction inlet 29 of air-breathing body 12 to the venthole 25 of the ventilation silk screen 23 of suction grid 11 is e,
Inequality b is met with longitudinal separation b and longitudinal separation e<The mode of e configures suction grid 11.
If as described above, longitudinal separation e is set as bigger than longitudinal separation b, cylinder main body 28 can be utilized to from suction inlet
29 are inhaled into and reach the air stream progress rectification of ventilation silk screen 23, suppress to produce sinuous flow in the inside of cylinder main body 28.In addition, energy
Using cylinder main body 28 and air-breathing silk screen 30 make the Rotation Noise of Air Blast fan 4, fan blade 4a blade sound attenuation.Therefore,
In addition to the inhibition of the sinuous flow noise obtained by ventilation silk screen 23, moreover it is possible to brought by cylinder main body 28 and air-breathing silk screen 30
Sound attenuation effect, reduce the overall noise of hair dryer.
Make from the opening face of the suction inlet 29 of air-breathing body 12 to the longitudinal separation of the mounting portion 24 of suction grid 11 for d,
Make the mounting portion 24 of suction grid 11 and the fan blade 4a of Air Blast fan 4 it is opposed at intervals of c when, with longitudinal separation d with it is right
Put interval c and meet inequality c<The mode of d configures suction grid 11.
If as described above, longitudinal separation d is set as it is bigger than opposed interval c, can utilize cylinder main body 28, air-breathing silk screen 30
The air stream that the blade edge of fan blade 4a is inhaled into and reached from suction inlet 29 is carried out with ventilation this three of silk screen 23 whole
Stream, the inside that can suppress the blower-casting 6 in the inside of cylinder main body 28 and towards ventilation silk screen 23 produce sinuous flow.In addition, energy
Make the Rotation Noise of Air Blast fan 4, fan blade 4a using silk screen 23 of ventilating, cylinder main body 28 and air-breathing silk screen 30 this three
Blade sound attenuation.Therefore, in addition to the inhibition and sound attenuation effect of the sinuous flow noise obtained by ventilation silk screen 23,
By the sound attenuation effect brought by cylinder main body 28 and air-breathing silk screen 30, the overall noise of hair dryer can also be reduced.
Make the opening face of the aperture area of the ventilation silk screen 23 of suction grid 11 for A, the suction inlet 29 for making air-breathing body 12
When product is C, inequality A ≒ are met with aperture area A and aperture area C<The mode of C is set.In addition, the opening of ventilation silk screen 23
Area A represents to be formed at the summation of the area of the venthole 25 of ventilation silk screen 23.In addition, the aperture area C of suction inlet 29 such as exists
Represented in Fig. 3 with symbol C, expression forms the channel cross-sectional area of the part of the diameter minimum in the barrel of suction inlet 29.
If as described above, the aperture area C of suction inlet 29 is set as roughly the same with the aperture area A for silk screen 23 of ventilating
Or it is bigger than aperture area A, then it can make the flow velocity by the air stream of suction inlet 29 and the venthole 25 by silk screen 23 of ventilating
The flow velocity of air stream is roughly the same or is low speed than the flow velocity of the air stream by venthole 25.In addition, pass through suction inlet 29
The flow velocity of air stream is smaller, more relaxes the flow velocity of the air stream in the entrance opening face of suction inlet 29, can suppress in suction air
Vortex is produced near stream, can correspondingly make the overall noise of hair dryer small.But the aperture area C with suction inlet 29 is got over
Greatly, enclose the tendency that the effect of sound more declines, it is therefore preferable that in a manner of aperture area A and aperture area C meet A ≒ C into
Row setting.
Make the opening of the aperture area of the ventilation silk screen 23 of suction grid 11 for A, the air-breathing silk screen 30 for making air-breathing body 12
When area is B, inequality A ≒ are met with aperture area A and aperture area B<The mode of B is set.In addition, air-breathing silk screen 30 is opened
Open area B represents to be formed at the summation of the area of the venthole 33 of air-breathing silk screen 30.
If as described above, make the aperture area B of air-breathing silk screen 30 roughly the same with the aperture area A for silk screen 23 of ventilating or compare
Aperture area A is big, then can make the flow velocity of air stream of the venthole 33 by air-breathing silk screen 30 and leading to by silk screen 23 of ventilating
The flow velocity of the air stream of stomata 25 is roughly the same, flow velocity low speed than the air stream by venthole 25.In addition, pass through venthole
The flow velocity of 33 air stream is smaller, makes more to relax by the stream by air stream of venthole 33, can suppress passing through ventilation
Being vortexed by being produced near air stream for hole 33, can correspondingly reduce the overall noise of hair dryer.But there are air-breathing silk screen
30 aperture area B is bigger, and the effect for enclosing sound more declines, and therefore, aperture area A and aperture area B are preferably to meet formula A
The mode of ≒ B is set.
When making the aperture area of suction inlet 29 of air-breathing body 12 be C, making the aperture area of submitting mouth 31 be D, with opening
Area C and aperture area D meets inequality C<The mode of D is set.In this way, if the aperture area D for sending out mouth 31 is set as than opening
Open area C is big, then the rotation that the Air Blast fan 4 for having passed through ventilation silk screen 23 is enclosed using the small suction inlet 29 of aperture area is made an uproar
Sound, the blade noise of fan blade 4a go out to 29 side leakage of suction inlet, reduce the noise content discharged from suction inlet 29, make hair dryer
Overall noise further reduces.In addition, make will from send out mouth 31 to ventilation silk screen 23 shortly before air stream flow velocity under
Drop, suppresses being vortexed by being produced near air stream after the venthole 25 of ventilation silk screen 23 has been passed through, can correspondingly subtract
The overall noise of small hair dryer.
As shown in figure 3, using section smoothly curved S shape expand barrel 32 make the suction inlet 29 of air-breathing body 12 with
It is continuous between submitting mouth 31.If in this way, making suction inlet 29 smoothly continuous with sending out mouth 31 using barrel 32 is expanded, make from suction
Entrance 29 is round and smooth to the stream for sending out the air between mouth 31, effectively can will suck fan blade 4a of the air to Air Blast fan 4
Supply.Accordingly, it is capable to strengthen the air output of the dry wind supplied from Air Blast fan 4, the draft capacity of hair dryer is improved.It is in addition, logical
Crossing makes, from suction inlet 29 to air stream round and smoothization sent out mouth 31, can reliably prevent to produce in the inside for expanding barrel 32
The situation of vortex.
The air-supply arrangement formed as above can be implemented in the following manner.
Air Blast fan 4 is configured in the inside of the body shell 1 of tubular, in the fan 4 and the rear aperture 9 of body shell 1
Between front and rear configuration suction grid 11 and tubular air-breathing body 12.The suction grid 11 abutted with Air Blast fan 4 possesses to sending
Wind fan 4 bloat inner concave bending it is curved ventilation silk screen 23 and ventilation silk screen 23 periphery protrude mounting portion 24.Air-breathing body
12 are installed on the rear aperture 9 of body shell 1, and possess suction inlet 29 at the cylinder end rearward protruded from rear aperture 9.At this
In kind of air-supply arrangement, the mounting portion 24 of suction grid 11 be located at than air-breathing body 12 front end on the front.
Fig. 7 represents the embodiment two of the hair dryer of the present invention.Here, the cylinder master of suction grid 11 and air-breathing body 12 is changed
The structure of body 28 and air-breathing silk screen 30.In detail, by the mounting portion 24 of suction grid 11 to ventilation silk screen 23 periphery before
Square bending is formed as tubular, by the outer tube rear end for being installed on blower-casting 6 of mounting portion 24.Venthole 25 is formed at ventilation silk screen
23 24 both sides of inner concave bending curved surface and mounting portion.Cylinder main body 28 is formed as into dual tubular using inner cylinder 28a and outer barrel 28b,
The tube rear end of inner cylinder 28a is fixed with air-breathing silk screen 30 and outer barrel 28b.In addition, the section of the barrel of outer barrel 28b is formed as into J words
Shape, sets bayonet pawl 36 in the cylinder front end of barrel, can be loaded and unloaded in the bayonet slot 37 of body shell 1.In addition, section is set to be J words
The curved end of shape and the tube rear end of inner cylinder 28a are continuous, using inner cylinder 28a tube rear end and outer barrel 28b bent portion front end
Grip the periphery of air-breathing silk screen 30.Suction inlet 29 is located at the curved end at the rear portion of outer barrel 28b.
Air-breathing silk screen 30 is identical with the ventilation silk screen 23 of suction grid 11, is formed by inner concave bending curved surface, but by than silk of ventilating
The slow flexure plane of net 23 is formed.If cylinder main body 28 is unloaded from body shell 1, suction grid 11 can be unloaded from blower-casting 6
Under, accordingly, it is capable to easily remove hair, the dust for being attached to ventilation silk screen 23.The suction grid 11 for being installed on blower-casting 6 exists
Cylinder main body 28 is installed in the state of body shell 1 and is clamped and fastened on blower-casting 6 and inner cylinder 28a.In the stationary state
Under, the rear aperture 9 of body shell 1 is positioned at than mounting portion 24 on the front.Other are identical with embodiment before, therefore to identical
Component mark identical symbol and the description thereof will be omitted.
In the above-described embodiment, it is mounted with air-breathing silk screen 30 in cylinder main body 28, but air-breathing silk screen 30 can omit.Separately
Outside, air-breathing body 12 also without be detachably installed on body shell 1, air-breathing body 12 can be simple relative to body shell
Installed in the state of fixing on ground.Air-breathing silk screen 30 need not be formed as discoideus, can with ventilation silk screen 23 be identically formed for
Inner concave bending is curved.The outline shape of fan boss 4b needs not be shape, the shape of rear end point of trapezoidal shape or rear end circle
Shape.Cylinder main body 28 need not be formed as cylindric, can be long round shape by section, elliptoid cylinder formed.Cylinder main body 28 can
Link or be screwed into link to be press-fitted relative to body shell 1.
(embodiment three)
Fig. 8 to Figure 18 represents to apply the present invention to the embodiment three of hair dryer (air-supply arrangement).In fig.9, hair dryer
Possess the body shell 1 being made of hollow and the handle 3 that can foldedly link centered on axis 2 relative to body shell 1.
In Fig. 8 and Fig. 9, body shell 1 engages segmentation housing 1a, 1b and upper shell 1c of left and right and is configured to hollow
Shape, sets rear aperture 9 in its back-end, and blow-off outlet 13 is set in front end.In the inside of body shell 1 configuration supply dry wind
Cylindric fan hub of both the Air Blast fan 4 of axial flow type, the motor 5 that rotation driving is carried out to the fan 4 and support 4,5
Body 6, heating unit 7 is adjacently configured with the outlet 6b of blower-casting 6.That is, blower-casting 6 is located in its entrance a and outlet 6b
Configuration is in body shell 1 in the state of between the rear aperture 9 and blow-off outlet 13 of body shell 1.As shown in figure 8, in fan
Boss 26 is threaded below the barrel of housing 6, which is linked to the segmentation shell in left side by using screw 27
Body 1b, body shell 1 is fixed on by blower-casting 6.Segmentation housing 1a, 1b of left and right is fixed using screw link (not shown).
Air Blast fan 4 is integrally provided with four fan blade 4a and fan boss 4b.Set in the outlet 6b sides of blower-casting 6
Multiple rectifying wings 15 are put, sets up separately put motor bracket 16 in the central portion.Motor 5 is installed on motor bracket 16, from the stent 16
Rear end protrude output shaft on fix Air Blast fan 4.That is, motor 5 and Air Blast fan 4 passes through motor bracket 16 and rectifying wings 15
Supported by blower-casting 6.By Air Blast fan 4 pressurizes and reverses air stream by rectifying wings rectification for the stream of straight line after, to heating
Unit 7 carries out financial-supply-leading.Starter motor 5 is set before handle 3 or switches the switch of the power supply state to heating unit 7
Knob 8.In addition, setting the driving revolution for changing motor 5 behind handle 3 and to the air volume progress of Air Blast fan 4
The air quantity switching knob 10 of switching.In fig. 8, match somebody with somebody between the entrance 6a of blower-casting 6 and the rear aperture 9 of body shell 1
Put the suction grid 11 of entrance 6a and the air-breathing body 12 of tubular of covering blower-casting 6.In addition, in the blow-off outlet of body shell 1
13 installation blowout nozzles 14 (with reference to Fig. 9).
In the hair dryer formed as above, for noise when significantly suppressing to drive Air Blast fan 4 and reduction makes
The overall noise of used time, configures suction grid 11 and air-breathing body 12 in order between Air Blast fan 4 and rear aperture 9.Such as figure
10th, shown in 11, suction grid 11 is integrally provided with the ventilation silk of the spherical calotte shape (inner concave bending is curved) bloated to Air Blast fan 4
Net 23 and ventilation silk screen 23 periphery protrude mounting portion 24.Suction grid 11 is to aluminium alloy plate, sheet metal, Thin Stainless Steel
To be formed as tea strainer netted to implement punch process on the blank of the punch metal part shape of material for plate etc., on ventilation silk screen 23
Form one group of venthole 25.In this embodiment, venthole 25 only is formed in the surface side that is curved concave inward of ventilation silk screen 23, avoids leading to
Stomata 25 is formed at flange shape mounting portion 24, the boundary member (with reference to Figure 12) of inner concave bending curved surface and mounting portion 24, but also may be used
To form venthole 25 on mounting portion 24.
Air-breathing body 12 is made of the placket 45 and rear cylinder 46 being made of respectively plastic molded article, and suction inlet is set in rear cylinder 46
29.In addition, in the configuration of the adjacent part of the placket 45 towards suction inlet 29 and rear cylinder 46 as the rectification silk of first filter 47
30 and second filter 48 of net.Placket 45 is made of the cylinder of front and rear opening, and the diameter of the barrel gradually becomes to blower-casting 6
The earth is set, and is configured to expand barrel (barrel) 32 from entrance to the barrel for sending out mouth (outlet) 31 is smoothly curved.
In the mount structure of adjacency section setting the second filter 48 of support with rear cylinder 46 of placket 45.As shown in Figure 10, frame
Structure is made of the support frame 50 of circular central branches support frame 49 and the X shape for supporting the frame 49, central branches support frame 49 and support
Frame 50 and the cylinder end face 51 of placket 45 are arranged to the same face.Air-breathing body 12 plays at the same time utilizes the rectification effect brought by placket 45
Reduce sinuous flow noise function and by 30 and second filter of flow straightening grid it is 48 bringing, prevent hair, dust etc. to be inhaled into wind
Function in fan case body 6.In addition, rectification silk screen 30 can preferably play rectification effect but it is also possible to be can only prevent hair, finger
The safeguard structure of entrance.In addition, rectification silk screen 30 is the component identical with the air-breathing silk screen 30 of embodiment one.
Second filter 48 is formed by the laminal soft material bent freely.In more detail, by making thin plastics
The commercially available resin web eye-shaped that wire rod intersects is into possessing compared with first filter 47 one group of fully small venthole 48a, resistance
Only the hair of hair, less dust enter the inside of blower-casting 6.As shown in figure 12, the second filter 48 is thermally formed to be shallow
Plate-like, spread on central branches support frame 49 and support frame 50, cylinder end face 51 by the way that its end face heat is melted, it is integrated with placket 45.
In the state of air-breathing body 12 is installed on the rear aperture 9 of body shell 1, the front-back of the second filter 48 is by plastic
Centre support frame 49 and support frame 50 and rectification silk screen 30 reliably clamp.That is, by bending laminal soft material shape freely
Into the second filter 48 by the central branches support frame 49 than 48 hard of filter and support frame 50 and rectification silk screen 30 reliably
Clamping.Therefore, even in the air-supply zone of action by Air Blast fan 4 Lai Action of Wind pressure in the second filter 48, or vacuum is inhaled
In the case that the vacuum pressure of dirt device is acted on, the second filter 48 significantly flexural deformation and breakage can be also prevented.
As shown in figure 14, rear cylinder 46 is integrally provided with the cylinder principal part 53 of dual tubular and in the prominent up and down of cylinder principal part 53
Cover wall 54,55, the wall of the inner side of cylinder principal part 53 is funnelform suction inlet 29.In this way, by making suction inlet 29 be formed as funnel
Shape, can improve muting function by the air stream being inhaled into air-breathing body 12 smoothly to flow.Suction inlet 29 and expanding before
Barrel 32 is smoothly continuous, both sections are in the S shape releived.It is integrally formed in the abutting end of rear cylinder 46 and placket 45
Rectification silk screen 30 before.As shown in Figure 10, rectification silk screen 30 is by being configured to 56 He of rectification rib of the quadruple round shape of concentric circles
The intersecting rib 57 of the X shape of each rectification rib 56 is supported to form.
In order to improve the rectification effect brought by suction inlet 29 and improve muting function, as shown in figure 12, by suction grid
The thickness T of 11 ventilation silk screen 23 is set as that the rib length L1 in the ventilation direction than rectification rib 56 is small.In addition, in order to reliably send out
Rectification effect is waved, and prevents from blocking suction inlet 29 and causing flowing resistance to become larger, the rib thickness L2 of rectification rib 56 is set as comparing
The rib length L1 in the ventilation direction of rectification rib 56 is small.
Then, link of the suction grid 11 relative to the fixed structure, placket 45 and blower-casting 6 of blower-casting 6 is illustrated
Structure, the connecting structure of placket 45 and rear cylinder 46, rear cylinder 46 are relative to mounting structure of rear aperture 9 etc..
As shown in FIG. 12 and 13, the mounting portion 24 of suction grid 11 by ventilation silk screen 23 periphery interior 60 He of engaging wall
With it is interior engage wall 60 and be continuously bent into the wild card of L-shaped combine harmoniously and 61 be formed as multiple tubular.In addition, the week of wall 61 is engaged outside
Enclose and be wholely set engagement pawl 62 everywhere, be provided projectingly in the outer circumferential surface of blower-casting 6 with circle-shaped for engaging for engagement pawl 62
Engaging rib 63.By make wild card combine harmoniously outside 61 embedded in blower-casting 6 entrance 6a side face, and make engagement pawl 62 with engaging rib
63 engagings, can cannot separate suction grid 11 relative to blower-casting 6 and cannot be relatively movably integrated.Due to the shape
Interior engaging wall 60 and wild card under state, which combine harmoniously, 61 holds the barrel of blower-casting 6 in curb pins, accordingly, it is capable to make 11 phase of suction grid
It cannot fix in the state of moving radially for blower-casting 6, and combined harmoniously 61 increasings using the wild card closely sealed with housing side face
The structural strength of strong wind fan housing 6, can suppress to receive the situation of the generation vibrating noise of blower-casting 6 of the vibration of motor 5.Such as
Shown in Figure 13, engagement pawl 62 wild card is combined harmoniously 61 be installed on blower-casting 6 after, bending pawl front end simultaneously engages with engaging rib 63.
As shown in figure 11, in the side face with the adjacency section of blower-casting 6 of placket 45, quadrilateral shape is protrusively provided forward
Four link pawls 64, it is each link pawl 64 wall formed quadrangle connecting hole 65.In addition, in the side face of blower-casting 6
Form the link projection 66 that engages with connecting hole 65 everywhere.The mounting portion 24 of suction grid 11 is being installed on blower-casting 6
Afterwards, the link pawl 64 of placket 45 is connected to the side face of blower-casting 6, link projection is sticked in by the way that the connecting hole 65 is press-fitted
66, placket 45 can be fixed on blower-casting 6.Under the installment state, the cylinder end face of the submitting mouth 31 of placket 45 and fan hub
Body 6 collaboratively grips the mounting portion 24 of suction grid 11, accordingly, it is capable to more firmly fix suction grid 11.Being capable of basis
It is described above to understand that suction grid 11 is fixed indissociably with placket 45 relative to blower-casting 6 like that.
As shown in figure 12, set in the adjacent part of placket 45 and rear cylinder 46 and press pressure ring 68.It is integrally provided with by pressure ring 68
Cover the barrel 69 and the joint seat 70 of support front end of the suction inlet 29 of cylinder 46 after fixed of the periphery of the second filter 48.In order to
It will temporarily fix relative to placket 45 by pressure ring 68, in the connecting hole of formation everywhere 71 of barrel 69, set in the side face of placket 45
Rib 72 corresponding with connecting hole 71.By the way that placket 45 will be installed on by pressure ring 68 is outer, rib 72 is fallen into and is sticked in connecting hole 71,
Placket 45 can will be temporarily fixed on by pressure ring 68.In this condition, by the way that rear cylinder 46 to be installed on to the rear aperture of body shell 1
9, cylinder 46 will press fixation by pressure ring 68 to placket 45 after utilizing.Therefore, using hair dryer when, can prevent by pressure ring 68 to
Anteroposterior direction, radially move about and be securely fixed.In addition, it can utilize by pressure ring 68 firmly to being fixed on the second mistake of placket 45
Filter 48 is fixed, and reliably prevents the second filter 48 from being separated from placket 45.
The pressing of cylinder 46 is fixed after utilization press pressure ring 68 in the state of, the cylinder front end of the second filter 48 and rear cylinder 46 it
Between ensure gap E.If in this way, gap E is formed between the second filter 48 and rear cylinder 46, even will be installed by pressure ring 68
In the state of cylinder end face 51, also avoid being pressed the situation of the periphery of the second filter 48 by the cylinder end of rear cylinder 46, can eliminate should
Power acts on the situation of the periphery of the second filter 48.Accordingly, it is capable to prevent the second filter 48 that can be by suction inlet 29 visually
Peripheral part earlier breakage.
As shown in figure 14, in order to which rear cylinder 46 is detachably installed on rear aperture 9, rear cylinder 46 cylinder principal part 53 and on
Under cover wall 54,55 on along three 53~55 periphery formed positioning rib 74.In addition, in the left and right of the upper end of the cover wall 54 of upside
Center forms engagement pawl 75, and connecting piece 76 is formed in the left and right of the lower end of the cover wall 55 of downside center.In addition, in cylinder principal part 53
Center forms the engagement pawl 77 of pair of right and left up and down.In 9 side of rear aperture, formed and 74 corresponding positioning of positioning rib along its periphery
Groove 78, forms the locking groove 79 for being used for engaging for locking pawl 75, the segmentation housing 1a in left side in the left and right of upper shell 1c center
Lower end formed screw base 80.In addition, formed and 77 corresponding card of engagement pawl in the center up and down of segmentation housing 1a, 1b of left and right
Close stage portion 81.
By being sticked in locating slot 78 by locking pawl 75 engaging in locking groove 79 and by each positioning rib 74, and such as Figure 15 institutes
Show, engagement pawl 77 is press-fitted and is sticked in hook step portion 81, rear cylinder 46 rear aperture 9 can be installed on and block body shell 1
Behind.In this condition, since connecting piece 76 enters the inner face of rear aperture 9 and with screw base 80 in upper and lower face,
Rear cylinder 46 can be fixed on body shell 1 by the way that the screw (valve snail nail) 82 for being inserted through screw base 80 is screwed into connecting piece 76.It is logical
Cross and unclamp screw 82 as needed and unload rear cylinder 46 from rear aperture 9, can be washed to rear cylinder 46 and by pressure ring 68, energy
Removing is attached to dust of the second filter 48 etc..As described above, in the state of air-breathing body 12 is installed on body shell 1,
From rear aperture 9, side protrudes its majority backward, and cylinder 46 blocks rear aperture 9 after utilization.In addition, the installation of suction grid 11
Portion 24 be located at than air-breathing body 12 cylinder front end on the front.
In order to suppress to cause by the whirlpool of the fan blade 4a generations of Air Blast fan 4, stripping or by the vibration of fan blade 4a
Blade noise, form fan blade 4a as follows.As shown in FIG. 16 and 17, in the direction of rotation downstream of fan blade 4a
The blade inlet edge of side concavo-convex edge 85 before setting, the concavo-convex edge after the trailing edge of the direction of rotation upstream side of fan blade 4a is formed
86.The arrow of Figure 16 is the direction of rotation of Air Blast fan 4.Preceding bumps edge 85 is by lenitively curved recess 85a and convex portion 85b shapes
Into rear bumps edge 86 is formed by recess 86a and convex portion 86b of the concavo-convex number than preceding concavo-convex edge more than 85.In addition, by fibre strengthening
Plastic material forms the entirety of Air Blast fan 4, improves the structural strength of fan blade 4a and is difficult to vibrate.As reinforcing fiber,
Can be using glass fibre, carbon fiber, boron fibre, aromatic polyamide resinoid fiber etc..
In this way, if preceding bumps edge 85 is formed as waveform by multiple recess 85a and convex portion 85b, fan blade 4a is being utilized
Pressurized plane (side with 15 face of rectifying wings) extrusion air when, make the extrusion reaction force of air for acting on blade inlet edge
It is scattered, blade inlet edge can be suppressed and vibrated to vane thickness direction and produce noise.Further, since the adding by blade inlet edge in air-flow
The opportunity of pressure surface extrusion produces deviation in recess 85a and convex portion 85b, and therefore, the entirety of blade inlet edge can be suppressed at the same time by also having
The effect of situation about being vibrated to vane thickness direction.
Equally, if rear bumps edge 86 is formed by multiple recess 86a and convex portion 86b, air-flow and negative pressure in pressurization surface side
The air-flow of face (side with 11 face of suction grid) side, in recess 86a, collaborates earlier, in convex portion when trailing edge collaborates
86b, interflow hysteresis, therefore, carries out the interflow of two air-flows at leisure.As a result, make the backwash subdivision produced in trailing edge
Change, the speed loss swum after blade diminishes.Accordingly, it is capable to suppress the noise of the vibration of adjoint blade inlet edge at the same time and swum after blade
Speed loss it is big in the case of noise, decline fan noise.
In order to make the subdivision of the vibration restriction effect and backwash produced by rear concavo-convex edge 86 brought by preceding concavo-convex edge 85
Effect is more reliable, the relation size of concavo-convex edge 85 and rear concavo-convex edge 86 before setting as follows.As shown in figure 17, by preceding concavo-convex edge
The adjoining spacing P1 of 85 recess 85a is set as that the adjoining spacing P2 of the recess 86a than rear concavo-convex edge 86 is big.In addition, will be preceding recessed
The concavo-convex depth j1 of flange 85 is set as smaller than the concavo-convex depth j2 of rear concavo-convex edge 86.In addition, the recess 85a by preceding concavo-convex edge 85
Bending radius k1 be set as that the bending radius k2 of recess 86a than rear concavo-convex edge 86 is big.
If the adjoining spacing P1 of the recess 85a of preceding concavo-convex edge 85 is set as to the adjoining of the recess 86a than rear concavo-convex edge 86
Spacing P2 is big, then the area of the convex portion 85b of concavo-convex edge 85 before increasing, and improves the structural strength of convex portion 85b.As it does so, can be more
Convex portion 85b is effectively inhibited to vibrate to vane thickness direction and produce noise.
If the concavo-convex depth j1 of preceding concavo-convex edge 85 is set as it is smaller than the concavo-convex depth j2 of rear concavo-convex edge 86, it is deep with bumps
It is small corresponding to spend j1, it is difficult to bend, accordingly, it is capable to which the convex portion 85b of concavo-convex edge 85 is vibrated to vane thickness direction before more effectively suppressing
And produce noise.In addition, the bending radius k1 of the recess 85a of preceding concavo-convex edge 85 is set as the recess 86a than rear concavo-convex edge 86
Bending radius k2 the reasons why being also greatly identical.
As described above, the Air Blast fan 4 by measuring concavo-convex edge 85 and rear concavo-convex edge 86 before formation on fan blade 4a
Air-supply noise, compared with the air-supply noise of the Air Blast fan of existing structure, confirmation can will air-supply noise suppression be which kind of degree.
In detail, such as it is illustrated in Figure 6, the measure for preparing to be provided with the forniciform suction grid of evagination in the rear end of body shell is used
Hair dryer, be assembled with concavo-convex edge 85 before not formed, rear concavo-convex edge 86 existing Air Blast fan and measure air-supply noise, and change
Into Air Blast fan 4 of the invention and air-supply noise is measured, the air-supply noise to both is compared.On measuring noise of blowing,
The loudspeaker of noisemeter is configured in the position for leaving the rear end 1m of body shell 1, makes both revolutions identical and measures noise sound
Amount.As a result, compared with the air-supply noise of the hair dryer of Air Blast fan with assembling existing structure, the air-supply wind of the present invention is assembled
The hair dryer of fan 4 can significantly cut down air-supply noise.
As described above, body shell 1 engages segmentation housing 1a, 1b, the upper shell 1c of left and right and is configured to hollow tube-shape, such as
Shown in Fig. 8, between upper shell 1c and blower-casting 6 and the lower part of segmentation housing 1a, 1b of left and right and blower-casting 6 it
Between form larger gap.Utilize these gaps, the gap configuration power supply control base board (control base board) 90 in downside, in upside
Gap configuration temperature controlled substrate (control base board) 91.In addition, the Installation Modes switching switch 92 on temperature controlled substrate 91,
Operation can be switched over to the switch 92 using the button 93 being arranged on above upper shell 1c.As shown in figure 9, in heating unit
7 upside sets the sparking electrode 94 of ion generation.As described above, the gap between body shell 1 and blower-casting 6 is empty
Between configure control base board 90,91 so that from control base board 90,91 cover blower-casting 6 outside air-supply noise to outside body shell 1
Release, can improve quietness.
If carrying out making operation to switch knob 8, commercial alternating current is supplied to power supply control base board 90, is adjusted
For the electric current for being acted motor 5, heating unit 7, sparking electrode 94 etc..In addition, connecing for knob 10 is switched by air quantity
Switching ON signal, the size of the driving revolution of 90 switching motor 5 of power supply control base board.If being operated to button 93 and to mould
Formula switching switch 92 carries out making operation, then the caloric value of heating unit 7 is maximum, can be by 100 degree of warm wind from blow-off outlet 13
Send out.In the following, carrying out making operation to button 93 every time, 80 degree, 60 degree of warm wind can be sent out from blow-off outlet 13, if again
Making operation is carried out to button 93, then disconnects the energization to heating unit 7, the dry wind of room temperature is sent out from blow-off outlet 13.In the following,
Identical temperature control is repeated.
According to the hair dryer formed as above, the air stream sucked when in use using Air Blast fan 4 from suction inlet 29
It is rectified by 30 and second filter 48 of rectification silk screen and during expanding barrel 32, is flowed to suction grid 11.At this time, lead to
Cross and expanded the air stream of barrel 32 Air Blast fan 4 rectification and is inhaled into by ventilation silk screen 23 again, but the air stream sucked
Most of peripheral part from the rotary area with fan blade 4a in the ventilation silk screen 23 of front and rear face is inhaled into.This be because
For the partial negative pressure towards the rotary area of fan blade 4a is big, small with negative pressure of the fan boss 4b in the part of front and rear face.
But the curved top portion 40 of ventilation silk screen 23 is filled with the adjoining distance of fan boss 4b compared with other wire portions
Divide small.Therefore, reach what the air stream near curved top portion 40 was not detained between curved top portion 40 and fan boss 4b
Leeway, therefore can prevent the generation of the vortex of the delay with air stream and the generation of sinuous flow noise can be greatly reduced.In addition,
The rotary area to fan blade 4a is formed about in the bevel edge portion of the fan boss 4b of trapezoidal shape and is introduced into radiation direction
Air stream (radiation air-flow).By the radiation air-flow, by the air between curved top portion 40 and fan boss 4b to fan leaf
The rotary area of piece 4a, which is sleekly sent into, to be also trapped between fan boss 4b and curved top portion 40 and produces to elimination air stream
The situation of vortex is favourable.In this way, suction grid 11 in order to reduce the delay with air stream produce the situation of sinuous flow noise and
Set.
Except above-mentioned noise reduction structure, also for effectively further reducing sinuous flow noise, blown in the electricity of embodiment
In wind, relation size of Air Blast fan 4, suction grid 11 and air-breathing body 12 etc. is set as follows.
As shown in figure 18, it is convex in the curved top portion 40 and the fan of Air Blast fan 4 for making the ventilation silk screen 23 of suction grid 11
Platform 4b it is opposed at intervals of a, make from the mounting portion 24 of suction grid 11 to the longitudinal separation of the curved top portion 40 of ventilation silk screen 23
For b when, inequality a is met with opposed interval a and longitudinal separation b<The mode of b configures suction grid 11.
If longitudinal separation b is set as above it is bigger than opposed interval a, can eliminate ventilation silk screen 23 and fan it is convex
The situation for the detention space for easily producing sinuous flow noise is formed between platform 4b, the degree of crook of the ventilation silk screen 23 of inner concavity can be made
Become larger.In addition, the degree of crook of ventilation silk screen 23 is bigger, the periphery of the ventilation silk screen 23 in the region big towards the flow velocity of air stream
Partial area more increases, accordingly, it is capable to reduce the throughput of the central air stream of ventilation silk screen 23.Accordingly, it is capable to reliably prevent
Only air stream is trapped in the space between ventilation silk screen 23 and fan boss 4b, prevents to be vortexed and reliably prevent unrest
Flow noise.Based on these reasons, a as to satisfy the inequality<The mode of b configures suction grid 11.
By the way, due to if the bending radius of ventilation silk screen 23 greatly if curvature diminish, the flow velocity towards air stream is big
The area of the peripheral part of the ventilation silk screen 23 in region diminishes, and therefore, the throughput of the central air stream for silk screen 23 of ventilating increases
Add.In the above-described embodiments, about 5 times that longitudinal separation b is opposed interval a are made, the region big towards the flow velocity of air stream
The area of the peripheral part of ventilation silk screen 23 is fully big.
To make the longitudinal separation from the mounting portion 24 of suction grid 11 to the curved top portion 40 of ventilation silk screen 23 be b, make from
When the longitudinal separation of the opening face of the suction inlet 29 of air-breathing body 12 to the venthole 25 of the ventilation silk screen 23 of suction grid 11 is e,
Inequality b is met with longitudinal separation b and longitudinal separation e<The mode of e configures suction grid 11.
If as described above, longitudinal separation e is set as bigger than longitudinal separation b, placket 45 and suction inlet 29 and whole are utilized
Stream silk screen 30 carries out rectification to the air stream that ventilation silk screen 23 is inhaled into and reached from suction inlet 29, can suppress the inside of placket 45
Sinuous flow generation.Make the Rotation Noise of Air Blast fan 4, the blade noise of fan blade 4a in addition, can utilize and expand barrel 32
Decay.Therefore, in addition to the inhibition of the sinuous flow noise brought by ventilation silk screen 23, moreover it is possible to made an uproar by what is brought by placket 46
Sound attenuating, reduces the overall noise of hair dryer.
Make from the opening face of the suction inlet 29 of air-breathing body 12 to the longitudinal separation of the mounting portion 24 of suction grid 11 for d,
Make the mounting portion 24 of suction grid 11 and the fan blade 4a of Air Blast fan 4 it is opposed at intervals of c when, with longitudinal separation d with it is right
Put distance c and meet inequality c<The mode of d configures suction grid 11.In figure 18, symbol f represents the suction inlet 29 from rear cylinder 46
Rear end to the mounting portion 24 of suction grid 11 anteroposterior dimension.
If as described above, longitudinal separation d is set as it is bigger than opposed interval c, can utilize rectification silk screen 30, placket 45 with
And air stream progress of ventilation this three of silk screen 23 to the blade edge of fan blade 4a is inhaled into and reached from suction inlet 29 is whole
Stream, can suppress air-breathing body 12 inside and towards ventilation silk screen 23 blower-casting 6 inside sinuous flow generation.In addition,
It can make the Rotation Noise of Air Blast fan 4, the blade sound attenuation of fan blade 4a with air-breathing body 12 using silk screen 23 of ventilating.Cause
This, except the inhibition and sound attenuation effect of the sinuous flow noise that are obtained by ventilation silk screen 23, moreover it is possible to by by air-breathing body 12
The sound attenuation effect brought, reduces the overall noise of hair dryer.
When making the aperture area of suction inlet 29 of air-breathing body 12 be C, making the aperture area of submitting mouth 31 be D, with opening
Area C and aperture area D meet inequality C<The mode of D is set.In this way, if the aperture area D for sending out mouth 31 is set as than opening
Open area C is big, then the rotation that the Air Blast fan 4 for having passed through ventilation silk screen 23 is enclosed using the small suction inlet 29 of aperture area is made an uproar
The situation that sound, the blade noise of fan blade 4a go out to 29 side leakage of suction inlet, reduces the noise content discharged from suction inlet 29, can make
The overall noise smaller of hair dryer.In addition, the flow velocity of the air stream before making to flow into ventilation silk screen 23 from mouth 31 is sent out
Decline, suppress the situation by producing vortex near air stream after the venthole 25 of ventilation silk screen 23 has been passed through, can phase
Ground is answered to reduce the overall noise of hair dryer.
In the above-described embodiments, the rear cylinder 46 of air-breathing body 12 is detachably installed on body shell 1, but must not
Will, air-breathing body 12 can also be installed in the state of being simply fixed relative to body shell 1.Suction grid 11 need not be by gold
Belong to plate to be formed, can be formed by formed products.In this case, engagement pawl 62 is configured in advance it is hook-shaped, can also be relative to
Engaging rib 63 makes 62 elastic deformation of engagement pawl and engages.Ventilation silk screen 23 is needed not be to be curved concave inward by what a flexure plane was formed
Shape, can be by the more layeredly overlapping flexure plane of multiple flexure planes be formed.If it is desirable, the section for silk screen 23 of then ventilating can
To be flexure plane of the bending as waveform.Second filter 48 is not required heat to melt and spreads on central branches support frame 49 and support frame 50 and cylinder end
Face 51, can be adhesively fixed by sticker.
The present invention can also be widely used in the air-supply that curler, ventilating fan etc. possess suction grid in addition to hair dryer
Device.
Symbol description
1-body shell, 4-Air Blast fan, 5-motor, 6-blower-casting, 9-rear aperture, 11-suction grid,
12-air-breathing body, the ventilation silk screen of 23-suction grid, the mounting portion of 24-suction grid, the venthole of 25-ventilation silk screen,
28-cylinder main body, 29-suction inlet, 30-air-breathing silk screen (rectification silk screen), 31-submitting mouth, the venthole of 33-air-breathing silk screen,
45-placket, 46-rear cylinder, the 48-the second filter, 53-main barrel portion, 54,55-cover wall, 60-interior engaging wall, 61-wild card
Combine harmoniously, 68-press pressure ring, 85-preceding concavo-convex edge, 86-rear concavo-convex edge.
Claims (25)
- A kind of 1. air-supply arrangement, it is characterised in thatAir Blast fan (4) is configured with the inside of the body shell (1) of tubular, suction is configured at the rear of the Air Blast fan (4) The air-breathing body (12) of grid (11) and tubular,Adjacent suction grid (11) possesses to the curved ventilation silk of the inner concave bending of Air Blast fan (4) bulging with Air Blast fan (4) Net (23) and ventilation silk screen (23) periphery protrude mounting portion (24),Air-breathing body (12) possesses suction inlet (29) at cylinder rear,The mounting portion (24) of suction grid (11) be located at than air-breathing body (12) cylinder front end on the front.
- 2. air-supply arrangement according to claim 1, it is characterised in thatIn the curved top portion (40) and the fan boss (4b) of Air Blast fan (4) for making the ventilation silk screen (23) of suction grid (11) It is opposed at intervals of (a), make from the mounting portions (24) of suction grid (11) to the front and rear of the curved top portion (40) of ventilation silk screen (23) When distance is (b), inequality a is met with opposed interval (a) and longitudinal separation (b)<The mode of b configures suction grid (11).
- 3. air-supply arrangement according to claim 1 or 2, it is characterised in thatIt is in the longitudinal separation for making the curved top portion (40) from the mounting portion (24) of suction grid (11) to ventilation silk screen (23) (b), the venthole from the opening face of the suction inlet (29) of air-breathing body (12) to the ventilation silk screen (23) of suction grid (11) is made (25) when longitudinal separation is (e), inequality b is met with longitudinal separation (b) and longitudinal separation (e)<The mode of e configures suction lattice Grid (11).
- 4. air-supply arrangement according to claim 1 or 2, it is characterised in thatMake the longitudinal separation from the opening face of the suction inlet (29) of air-breathing body (12) to the mounting portion (24) of suction grid (11) For (d), make the mounting portion (24) of suction grid (11) and the fan blade (4a) of Air Blast fan (4) it is opposed at intervals of (c) when, Inequality c is met with longitudinal separation (d) and opposed interval (c)<The mode of d configures suction grid (11).
- 5. air-supply arrangement according to claim 1 or 2, it is characterised in thatMake the aperture area of the ventilation silk screen (23) of suction grid (11) for (A), the suction inlet (29) that makes air-breathing body (12) When aperture area is (C), it is set as that aperture area (A) and aperture area (C) meet inequality A ≒<C.
- 6. air-supply arrangement according to claim 1 or 2, it is characterised in thatSuction inlet (29) in air-breathing body (12) is provided with air-breathing silk screen (30),Make the aperture area of the ventilation silk screen (23) of suction grid (11) for (A), making the air-breathing silk screen (30) of air-breathing body (12) Aperture area when being (B), be set as that aperture area (A) and aperture area (B) meet inequality A ≒<B.
- 7. air-supply arrangement according to claim 1 or 2, it is characterised in thatThe tube rear end of air-breathing body (12) is provided with suction inlet (29), is provided with cylinder front end and sends out mouth (31),When making the aperture area of suction inlet (29) of air-breathing body (12) be (C), making the aperture area of submitting mouth (31) be (D), It is set as that aperture area (C) and aperture area (D) meet inequality C<D.
- 8. air-supply arrangement according to claim 1 or 2, it is characterised in thatThe suction inlet (29) and submitting mouth (31) for making air-breathing body (12) are respectively formed as tubular, smoothly curved using section The barrel (32) that expands of S shape makes between suction inlet (29) and submitting mouth (31) continuously.
- 9. air-supply arrangement according to claim 1 or 2, it is characterised in thatAir-breathing body (12) detachably links relative to body shell (1).
- 10. a kind of air-supply arrangement, it configures wind in the inside for the body shell (1) for possessing rear aperture (9) and blow-off outlet (13) Fan case body (6), the blower-casting (6) support motor (5) and Air Blast fan (4), at least cover around Air Blast fan (4), The air-supply arrangement is characterized in that,Blower-casting (6) is located at the rear aperture (9) and blow-off outlet (13) of body shell (1) in its entrance (6a) and outlet (6b) Between in the state of configuration in the body shell (1),Entrance (6a) in blower-casting (6) is configured with the suction grid (11) for covering the entrance (6a),Suction grid (11) possesses ventilation silk screen (23) and is arranged on the mounting portion (24) of the periphery of ventilation silk screen (23),In the state of mounting portion (24) is fixed on the entrance (6a) of blower-casting (6), ventilation silk screen (23) is from fan The entrance (6a) of housing (6) is bloated to Air Blast fan (4).
- 11. air-supply arrangement according to claim 10, it is characterised in thatThe mounting portion (24) of suction grid (11) by ventilation silk screen (23) periphery interior engaging wall (60) and with interior engage wall (60) be continuously bent into L-shaped wild card combine harmoniously (61) be configured to multiple tubular,In the state of mounting portion (24) is installed on the entrance (6a) of blower-casting (6), wild card combines harmoniously (61) and blower-casting (6) outer circumferential surface engaging.
- 12. air-supply arrangement according to claim 11, it is characterised in thatThe many places for engaging wall (61) outside are integrally provided engagement pawl (62), have been provided projectingly in the outer circumferential surface of blower-casting (6) Engaging rib (63) corresponding with engagement pawl (62),In the state of mounting portion (24) is installed on the entrance (6a) of blower-casting (6), engagement pawl (62) is with engaging rib (63) Engaging, suction grid (11) are fixed on blower-casting (6) in a manner of it cannot relatively move.
- 13. the air-supply arrangement according to claim 10 or 11, it is characterised in thatThe ventilation silk screen (23) of suction grid (11) is curved for inner concave bending to Air Blast fan (4) bulging.
- 14. the air-supply arrangement according to claim 10 or 11, it is characterised in thatRear aperture (9) in body shell (1) is provided with the air-breathing body (12) for possessing suction inlet (29),Air-breathing body (12) possesses the barrel (32) that will be guided from suction inlet (29) leaked-in air to ventilation silk screen (23),The mounting portion (24) of suction grid (11) be located at than air-breathing body (12) cylinder front end on the front,The suction inlet (29) and submitting mouth (31) for making air-breathing body (12) are respectively formed as tubular, smoothly curved using section Expanding barrel (32) makes between suction inlet (29) and submitting mouth (31) continuously.
- 15. air-supply arrangement according to claim 14, it is characterised in thatTowards the suction inlet (29) of air-breathing body (12), configuration doubles as the rectification silk screen (30) of first filter (47),Rectification silk screen (30) is by being configured to multiple rectification ribs (56) of concentric circles and the intersecting rib of the multiple rectification ribs (56) of support (57) form.
- 16. the air-supply arrangement according to claims 14 or 15, it is characterised in thatBy air-breathing body (12) be installed on body shell (1) rear aperture (9) in the state of, send out mouth (31) cylinder front end with Blower-casting (6) synergistically clamps the mounting portion (24) of suction grid (11).
- 17. the air-supply arrangement according to claim 15 or 16, it is characterised in thatThe thickness (T) of the ventilation silk screen (23) of suction grid (11) is set as the rib length in the ventilation direction than rectification rib (56) It is (L1) small,The rib thickness (L2) of rectification rib (56) is set as that the rib length (L1) in the ventilation direction than rectification rib (56) is small.
- 18. the air-supply arrangement according to claim 15 or 16, it is characterised in thatThe second filter of eyed structure is configured with the side of rectification silk screen (30) and the opposed faces of suction grid (11) (48), which possesses the one group venthole (48a) smaller than first filter (47),Second filter (48) is formed by the laminal soft material bent freely,Rectification silk screen (30) is formed by the material than the second filter (48) hard,Second filter (48) and the adjacent configuration of rectification silk screen (30),Air-breathing body (12) is made of the rear cylinder (46) for possessing the placket of barrel (32) (45) and possessing suction inlet (29),The periphery of the second filter (48) is clamped using placket (45) and rear cylinder (46),In the cylinder end face (51) of the placket (45) adjacent with rear cylinder (46), set in the state of with cylinder end face (51) for the same face Central branches support frame (49) and the support frame (50) for supporting the central branches support frame (49),Second filter (48) is fixed on an end face (51), central branches support frame (49) and support frame (50).
- 19. air-supply arrangement according to claim 18, it is characterised in thatThe barrel (69) for the periphery for possessing the second filter of covering (48) is configured with around the cylinder end face (51) of placket (45) Press pressure ring (68),Cylinder (46) is installed on the rear aperture (9) of body shell (1) afterwards,In the state of cylinder (46) is installed on rear aperture (9) by after, cylinder (46) will be installed on the cylinder end of placket (45) after utilization Being pressed by pressure ring (68) to placket (45) around face (51) is simultaneously fixed.
- 20. the air-supply arrangement according to claim 18 or 19, it is characterised in thatWill after in the state of cylinder (46) is installed on rear aperture (9), utilize central branches support frame (49), support frame (50) and whole The front and rear two sides that silk screen (30) clamps the second filter (48) is flowed,Ensure gap (E) between the cylinder front end of the second filter (48) and rear cylinder (46).
- 21. the air-supply arrangement according to claim 10 or 11, it is characterised in thatIn the operating condition for the clearance space configuration control air-supply arrangement being formed between body shell (1) and blower-casting (6) Control base board (90,91).
- 22. the air-supply arrangement according to claim 10 or 11, it is characterised in thatAir Blast fan (4) is configured to configure multiple fan blade (4a) around fan boss (4b),In the blade inlet edge in the direction of rotation downstream of fan blade (4a) and the direction of rotation upstream side of fan blade (4a) The preceding concavo-convex edge (85) for reducing fan noise and rear concavo-convex edge (86) are formed on trailing edge respectively.
- 23. air-supply arrangement according to claim 22, it is characterised in thatThe adjoining spacing (P1) of the recess (85a) of preceding bumps edge (85) is set as the neighbour of the recess (86a) than rear concavo-convex edge (86) Connect spacing (P2) greatly,The concavo-convex depth (j1) of preceding bumps edge (85) is set as smaller than the concavo-convex depth (j2) of rear concavo-convex edge (86).
- 24. the air-supply arrangement according to claim 22 or 23, it is characterised in thatThe recess (85a) of concavo-convex edge (85) and the recess (86a) of rear bumps edge (86) is each before being formed using bending edge,The bending radius (k1) of the recess (85a) of preceding bumps edge (85) is set as the curved of the recess (86a) than rear concavo-convex edge (86) Bilge radius (k2) are big.
- 25. air-supply arrangement according to claim 22, it is characterised in thatFan blade (4a) is formed by fibre reinforced plastics material.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-197361 | 2015-10-05 | ||
| JP2015197360A JP6731713B2 (en) | 2015-10-05 | 2015-10-05 | Blower |
| JP2015-197360 | 2015-10-05 | ||
| JP2015197361A JP6731714B2 (en) | 2015-10-05 | 2015-10-05 | Blower |
| PCT/JP2016/076648 WO2017061236A1 (en) | 2015-10-05 | 2016-09-09 | Blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108024610A true CN108024610A (en) | 2018-05-11 |
Family
ID=58487434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680050654.2A Pending CN108024610A (en) | 2015-10-05 | 2016-09-09 | Air-supply arrangement |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108024610A (en) |
| WO (1) | WO2017061236A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040495A (en) * | 2019-12-26 | 2021-06-29 | 添可智能科技有限公司 | Hair drier |
| CN115919052A (en) * | 2022-12-20 | 2023-04-07 | 湖南全康电子科技有限公司 | Noise-reducing air duct component and blowing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4121407Y1 (en) * | 1965-02-04 | 1966-10-20 | ||
| US4479311A (en) * | 1981-01-27 | 1984-10-30 | Blanco David M | Hair removing apparatus |
| JPH0513304U (en) * | 1991-07-25 | 1993-02-23 | 榮 漆崎 | Hair dryer |
| JP2009028437A (en) * | 2007-07-30 | 2009-02-12 | Panasonic Electric Works Co Ltd | Heating blower |
| CN101379300A (en) * | 2006-02-03 | 2009-03-04 | 汉拿空调株式会社 | Axial flow fan |
| JP2012020036A (en) * | 2010-07-16 | 2012-02-02 | Kyushu Hitachi Maxell Ltd | Hair dryer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4121406Y1 (en) * | 1965-02-04 | 1966-10-20 | ||
| JPS4123873Y1 (en) * | 1965-04-01 | 1966-12-05 | ||
| JP5602237B2 (en) * | 2010-09-21 | 2014-10-08 | 三菱電機株式会社 | Axial blower |
| JP2013123525A (en) * | 2011-12-14 | 2013-06-24 | Panasonic Corp | Air blower |
-
2016
- 2016-09-09 CN CN201680050654.2A patent/CN108024610A/en active Pending
- 2016-09-09 WO PCT/JP2016/076648 patent/WO2017061236A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4121407Y1 (en) * | 1965-02-04 | 1966-10-20 | ||
| US4479311A (en) * | 1981-01-27 | 1984-10-30 | Blanco David M | Hair removing apparatus |
| JPH0513304U (en) * | 1991-07-25 | 1993-02-23 | 榮 漆崎 | Hair dryer |
| CN101379300A (en) * | 2006-02-03 | 2009-03-04 | 汉拿空调株式会社 | Axial flow fan |
| JP2009028437A (en) * | 2007-07-30 | 2009-02-12 | Panasonic Electric Works Co Ltd | Heating blower |
| JP2012020036A (en) * | 2010-07-16 | 2012-02-02 | Kyushu Hitachi Maxell Ltd | Hair dryer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040495A (en) * | 2019-12-26 | 2021-06-29 | 添可智能科技有限公司 | Hair drier |
| CN115919052A (en) * | 2022-12-20 | 2023-04-07 | 湖南全康电子科技有限公司 | Noise-reducing air duct component and blowing equipment |
| CN115919052B (en) * | 2022-12-20 | 2023-12-15 | 湖南全康电子科技有限公司 | Noise-reducing air duct part and air blowing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017061236A1 (en) | 2017-04-13 |
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