CN108260912A - Hair dryer and sound absorption device thereof - Google Patents

Hair dryer and sound absorption device thereof Download PDF

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Publication number
CN108260912A
CN108260912A CN201710018621.6A CN201710018621A CN108260912A CN 108260912 A CN108260912 A CN 108260912A CN 201710018621 A CN201710018621 A CN 201710018621A CN 108260912 A CN108260912 A CN 108260912A
Authority
CN
China
Prior art keywords
sound
hair
dryer
sheet body
ringwall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710018621.6A
Other languages
Chinese (zh)
Inventor
洪银树
李明聪
蔡期琮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beihai Jianzhun Electronics Co ltd
Original Assignee
Sunon Electronics Foshan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunon Electronics Foshan Co Ltd filed Critical Sunon Electronics Foshan Co Ltd
Publication of CN108260912A publication Critical patent/CN108260912A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00Hair drying devices; Accessories therefor
    • A45D20/04Hot-air producers
    • A45D20/08Hot-air producers heated electrically
    • A45D20/10Hand-held drying devices, e.g. air douches
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00Hair drying devices; Accessories therefor
    • A45D20/04Hot-air producers
    • A45D20/08Hot-air producers heated electrically
    • A45D20/10Hand-held drying devices, e.g. air douches
    • A45D20/12Details thereof or accessories therefor, e.g. nozzles, stands

Abstract

The invention discloses a hair drier and a sound absorption device thereof, which are used for solving the problems of overhigh cost and small air volume of the existing low-noise hair drier, and the sound absorption device of the hair drier comprises: the sleeve comprises an annular wall, the annular wall is provided with an outer peripheral surface and an inner peripheral surface, the annular wall is provided with at least one through groove, and the at least one through groove penetrates through the outer peripheral surface and the inner peripheral surface; and the sound absorption sheet body is combined with the sleeve and is positioned on the inner side of the annular wall, and the sound absorption sheet body is provided with a plurality of meshes.

Description

Hair-dryer and its sound arrester
Technical field
The present invention is about a kind of hair-dryer and its sound arrester;Especially with regard to a kind of air intake vent for being set to hair-dryer Sound arrester.
Background technology
With motor and the continuous evolution of fan technology, commercially available hair-dryer is in order to promote the market competitiveness, gradual transferring efficiency Higher fan, to promote the performances such as the wind pressure of hair-dryer, air quantity.
Higher wind pressure, air quantity mean that hair-dryer easily generates the noise of bigger, it will relax when using hair-dryer Appropriateness adversely affects.For this purpose, part dealer releases the products such as low-noise blower then, however, Related product often has Higher cost causes price high, and the low-noise blower usually only has smaller air quantity, with consumer demand not Symbol.
In view of this, it is necessary to the shortcomings that improving the above-mentioned prior art, with provide a kind of smaller hair-dryer of noise and its Sound arrester, to solve the problems, such as that existing low-noise blower cost is excessively high and air quantity is smaller, and then meets actual market demand.
Invention content
The present invention provides a kind of sound arrester of hair-dryer, can reduce noise caused by hair-dryer.
The present invention additionally provides a kind of hair-dryers, realize the effect for reducing noise by setting sound arrester, have low Setup cost and higher air quantity can be possessed.
The present invention discloses a kind of sound arrester of hair-dryer, can include:One sleeve, the sleeve include a ringwall, the ring Wall have a peripheral surface and an inner peripheral surface, the ringwall be equipped at least one straight slot, at least one straight slot penetrate through the peripheral surface and The inner peripheral surface;And a sound-absorbing sheet body, which is incorporated into the sleeve and on the inside of the ringwall, and the sound-absorbing sheet body is equipped with Multiple mesh.
Wherein, form a gap between the sound-absorbing sheet body and the inner peripheral surface, so as to make the inner peripheral surface and the sound-absorbing sheet body it Between can form an air layer.
Wherein, which, so as to controlling the thickness of the air layer, enables the sound-absorbing sheet body between 0.2mm~3mm Effectively absorb the noises such as low frequency, intermediate frequency and high frequency caused by the hair-dryer.
Wherein, which forms loop shaped, so as to the sound-absorbing sheet body is enable to be produced when absorbing hair-dryer operating Raw noise.
Wherein, which, which is completely covered, covers at least one straight slot in the side of the inner peripheral surface, so as to ensuring gas Stream will not directly flow into the air inlet of a hair-dryer by least one straight slot.
Wherein, at least one straight slot is in the area summation of the peripheral surface of the ringwall and the ratio of the surface area of the peripheral surface For a percent opening, the percent opening is between 15%~80%, so as to making air easily by least one straight slot and the suction The mesh of tablet body flows into the air inlet of the hair-dryer.
Wherein, which is ultramicropore plate body made of metal material, good so as to having the sound-absorbing sheet body Noise absorption effect.
Wherein, which is aluminium sheet, so as to mitigating the weight of the sound-absorbing sheet body and avoiding corrosion.
Wherein, multiple mesh of the sound-absorbing sheet body are by being stamped and formed out, and the punching rate of the sound-absorbing sheet body 0.7% hereinafter, So as to the sound-absorbing sheet body is made to maintain preferable structural strength, thus with good noise absorption effect.
Wherein, a strainer is also comprised, which is set to an ora terminalis and suction of the ringwall in the axial direction of the ringwall Between tablet body.Whereby, which is capable of the air inlet of one hair-dryer of shade, to prevent dust or foreign matter from being invaded by the air inlet Inside the hair-dryer, there is the effect for protecting the hair-dryer.Also, since the sleeve is readily removed, in order to which user is clear It is clean or replace the strainer, there is the effect for promoting hair-dryer ease of use.
Wherein, which is strip hole slot, so as to promoting the percent opening of the sleeve so that air easily leads to The mesh for crossing at least one straight slot and the sound-absorbing sheet body flows into the air inlet.
Wherein, the axial angle of the extending direction of at least one straight slot and the ringwall is more than 0 ° and less than 90 °.It borrows This, the direction of rotation that the extending direction of at least one straight slot can correspond to the fan of the hair-dryer is inclined with respect to the axial direction of the ringwall Tiltedly, it to mitigate the situation that air-flow is contacted or rubbed with the ringwall, and then avoids generating noise.
Wherein, at least one straight slot is along the axially extending of the ringwall, so as to simplifying the structure of the sleeve to reduce it Manufacture difficulty.
Wherein, which is multiple, and each straight slot is round or oval hole slot.Whereby, this is at least one Straight slot can uniformly flow into the air layer between the inner peripheral surface and the sound-absorbing sheet body for air so that the air layer can blown The fan running of wind turbine maintains uniform pressure, to ensure that the sound-absorbing sheet body has good noise absorption effect.
In addition the present invention discloses a kind of hair-dryer, equipped with sound arrester as described above, and can include:One ontology, should Ontology is equipped with an air inlet, which is incorporated into the ontology, makes the ringwall around the air inlet.
Wherein, the ringwall of the sound arrester is equipped with an engaging portion in the ora terminalis in axial direction, which is incorporated into this The air inlet periphery of body, so as to the sleeve is enable to be incorporated into the ontology.
Above-mentioned hair-dryer and its sound arrester are capable of providing the body contacts that a sound-absorbing sheet body absorbs air-flow and the hair-dryer Or noise caused by friction, with certain effect for realizing noise caused by the reduction hair-dryer;In addition, the sound arrester is also Guiding air-flow can be assisted, smooth-going is allowed the flow to and flows into the air inlet and avoid generating vortex, can further reduce this and blow Noise caused by wind turbine, the effect of to realize " reduce hair-dryer caused by noise ".And, it is only necessary to the casing is incorporated into The ontology of the hair-dryer can reduce noise, without the internal structure for changing the hair-dryer, therefore need not redesign this and blow Wind turbine has relatively low setup cost;Moreover the disengaging air quantity of the hair-dryer can't be influenced with reference to the casing so that this blows Wind turbine still possesses higher air quantity.
Description of the drawings
Fig. 1:The partial schematic sectional view of the sound arrester of first embodiment of the invention.
Fig. 2:The sound arrester of first embodiment of the invention is incorporated into the schematic cross-sectional view of hair-dryer.
Fig. 3:Axially extending partial schematic sectional view of the straight slot of the sound arrester of the embodiment of the present invention along ringwall.
Fig. 4:The straight slot of the sound arrester of the embodiment of the present invention is the partial schematic sectional view of round hole slot.
Fig. 5:The partial schematic sectional view of the sound arrester of second embodiment of the invention.
Fig. 6:The sound arrester of second embodiment of the invention is incorporated into the schematic cross-sectional view of hair-dryer.Reference sign
1 sleeve
11 ringwall 11a ora terminalis
111 peripheral surface, 112 inner peripheral surface
12 straight slots
13 engaging portions
2 sound-absorbing sheet bodies
21 mesh
3 strainers
B ontologies
B1 air inlet B2 fans
X axial direction G gaps
F1 axial flow F2 radial air flows
Specific embodiment
It is hereafter special according to the present invention for above and other objects, features and advantages of the invention is enable to be clearer and more comprehensible Preferred embodiment, and attached drawing appended by cooperation, are described in detail below:
Refering to Figure 1, the sound arrester of its hair-dryer for first embodiment of the invention, including a sleeve 1 and one Sound-absorbing sheet body 2, the sound-absorbing sheet body 2 are incorporated into the sleeve 1.
The sleeve 1 includes a ringwall 11, which has a peripheral surface 111 and an inner peripheral surface 112, the peripheral surface 111 Positioned at 11 outside of ringwall, which is then located at 11 inside of ringwall.The ringwall 11 is equipped at least one straight slot 12, should At least one straight slot 12 penetrates through the peripheral surface 111 and the inner peripheral surface 112.At least one straight slot 12 is in the peripheral surface of the ringwall 11 111 area summation and the ratio of the surface area of the peripheral surface 111 can be defined as a percent opening, and in the present embodiment, this is opened Porosity is between 15%~80%.
The sound-absorbing sheet body 2 is incorporated into the sleeve 1 and positioned at 11 inside of ringwall, and the sound-absorbing sheet body 2 is equipped with multiple mesh 21.In the present embodiment, which is ultramicropore plate body made of metal material, has the sound-absorbing sheet body 2 good Noise absorption effect.For example, which can be aluminium sheet, to mitigate the weight of the sound-absorbing sheet body 2 and avoid becoming rusty Erosion.Multiple mesh 21 can by being stamped and formed out, and the punching rate of the sound-absorbing sheet body 2 preferably 0.7% hereinafter, this can be made Sound-absorbing sheet body 2 maintains preferable structural strength, thus with good noise absorption effect.The sound-absorbing sheet body 2 forms loop shaped, In detail, the loop shaped can be annulus round, oval loop shaped or polygon loop shaped etc., and the sound-absorbing sheet body 2 can be The toroidal ring structure of monolithic;Alternatively, the sound-absorbing sheet body 2 can be by multiple body units (such as:Multiple 〝 C 〞 matrix bodies) connection group Into toroidal ring structure, the present invention is not limited thereto.
By above structure, please refer to shown in Fig. 2, the sound arrester of the hair-dryer of the first embodiment in actual use, A hair-dryer can be incorporated into.In detail, which includes an ontology B, and ontology B is equipped with an air inlet B1.1 knot of sleeve Together in ontology B, make the ringwall 11 around air inlet B1.Wherein, which is equipped with one in the ora terminalis 11a on axial X Engaging portion 13, the engaging portion 13 can enable the sleeve 1 to be incorporated into this for being incorporated into the air inlet B1 peripheries of ontology B Body B.
Accordingly, when a fan B2 of the hair-dryer is operated, can air-flow be introduced by air inlet B1, the air-flow includes An one axial flow F1 and radial air flow F2, axial flow F1 can pass through 11 inside of ringwall to flow into this along axial direction X Air inlet B1, therefore the disengaging air quantity of the hair-dryer can't be influenced with reference to the casing 1.Since the sound-absorbing sheet body 2 is incorporated into the ring 11 inside of wall, and the sound-absorbing sheet body 2 is equipped with multiple mesh 21, and the sound-absorbing sheet body 2 is enable to absorb axial flow F1 and this Noise caused by body B contacts or friction, to realize the effect for reducing noise caused by the hair-dryer.
Also, since the ringwall 11 is equipped at least one straight slot 12, and at least one straight slot 12 penetrates through the peripheral surface 111 And the inner peripheral surface 112, therefore at least one straight slot 12 can be for air circulation to form radial air flow F2, and passes through this extremely The mesh 21 of a few straight slot 12 and the sound-absorbing sheet body 2 flows into air inlet B1.Whereby, the suction of the hair-dryer of the first embodiment Mixer also is able to auxiliary guiding air-flow, and air-flow smooth-going is made to flow into air inlet B1, so avoid air in the sound-absorbing sheet body 2 or The positions such as the air inlet B1 peripheries of ontology B generate vortex, can further reduce noise caused by the hair-dryer.
In order to confirm the sound arrester of the hair-dryer of the first embodiment by setting straight slot 12 can be into one in the ringwall 11 Noise caused by step reduction hair-dryer, please refers to following table one, combines the hair-dryer of the first embodiment in a hair-dryer respectively Sound arrester and combine and do not open up the other set cylinder (with reference to identical sound-absorbing sheet body 2) of straight slot 12, and should in distance The position of hair-dryer same distance (0.3 meter) is practical to measure obtained noise content.
Table one
It can be known by the practical measurement of upper table one, the sound arrester of the hair-dryer of the first embodiment passes through in the ring Wall 11 sets straight slot 12, can actually further reduce noise caused by hair-dryer, and its effect in hair-dryer to transport at a high speed It is particularly evident when turning.This is because when hair-dryer is in the case where running at high speed, it is necessary to larger air-flow is introduced by air inlet B1, this When, if the hair-dryer is to combine the other set cylinder for not opening up straight slot 12, which is only capable of circulating for axial flow F1, Larger axial flow F1 easily generates vortex, and then shape in positions such as the air inlet B1 peripheries of the sound-absorbing sheet body 2 or ontology B Into noise;Relatively, in the present embodiment, the ringwall 11 be equipped at least one straight slot 12 can for importing radial air flow F2, It allows the flow to smooth-going to flow into air inlet B1 and avoid generating vortex, therefore can further reduce and make an uproar caused by the hair-dryer Sound.
Based on above-mentioned technological concept, the characteristics of being exemplified below the sound arrester of various embodiments of the present invention hair-dryer and specifically It is bright:
It please refers to shown in Fig. 1 and Fig. 2, which, which is completely covered, covers at least one straight slot 12 in the ringwall 11 Inner peripheral surface 112 side, to ensure that air-flow directly will not flow into air inlet B1 by least one straight slot 12.The sound-absorbing Preferably form a clearance G between sheet body 2 and the inner peripheral surface 112 of the ringwall 11 so that the inner peripheral surface 112 and the sound-absorbing sheet body 2 it Between can form an air layer.The air layer can be used as a cushion space, and the absorption of noise is imitated with promoting the sound-absorbing sheet body 2 Fruit.Wherein, the thickness of the air layer can influence assimilation effect of the sound-absorbing sheet body 2 to the noise of different frequency, and the clearance G is preferable Between 0.2mm~3mm, to control the thickness of the air layer, the sound-absorbing sheet body 2 is enable effectively to absorb the hair-dryer and is produced The noises such as raw low frequency, intermediate frequency and high frequency.
In the present embodiment, which is strip hole slot, to promote the percent opening of the sleeve 1 so that air is easy Air inlet B1 is flowed by the mesh 21 of at least one straight slot 12 and the sound-absorbing sheet body 2.Wherein, at least one straight slot 12 The angle of axial X of extending direction and the ringwall 11 be preferably more than 0 ° and less than 90 °.Whereby, at least one straight slot 12 The direction of rotation that extending direction can correspond to the fan B2 of the hair-dryer is tilted with respect to the axial X of the ringwall 11, to mitigate air-flow The situation for contacting or rubbing with the ringwall 11, and then avoid generating noise.However, please refer to shown in Fig. 3, it is real in part of the invention It applies in example, which can extend along the axial X of the ringwall 11, so as to simplifying the structure of the sleeve 1 to drop Its low manufacture difficulty.
Or please refer to shown in Fig. 4, in section Example of the present invention, which is multiple, and each Straight slot 12 is round or oval hole slot, and at least one straight slot 12 can be uniformly distributed in the ringwall 11.Whereby, this is at least One straight slot 12 can uniformly flow into the air layer between the inner peripheral surface 112 of the ringwall 11 and the sound-absorbing sheet body 2 for air, make Uniform pressure can be maintained when the fan B2 of the hair-dryer is operated by obtaining the air layer, to ensure that it is good that the sound-absorbing sheet body 2 has Good noise absorption effect.
It please refers to shown in Fig. 5 and Fig. 6, is the sound arrester of the hair-dryer of second embodiment of the invention, it is real with aforementioned first Apply example the difference lies in:A strainer 3 is also comprised, which is set to the end of the ringwall 11 on the axial X of the ringwall 11 Between edge 11a and the sound-absorbing sheet body 2.Ora terminalis 11a is equipped with aforementioned engaging portion 13, and in other words, which is set to the engaging portion Between 13 and the sound-absorbing sheet body 2.Whereby, when the sleeve 1 is incorporated into ontology B, the strainer 3 be capable of shade ontology B into Air port B1 to prevent dust or foreign matter from being invaded inside the hair-dryer by air inlet B1, has the effect for protecting the hair-dryer.And And since the sleeve 1 is readily removed, in order to which user cleans or replace the strainer 3, with being promoted, hair-dryer is easy-to-use The effect of property.
In conclusion the hair-dryer and its sound arrester of various embodiments of the present invention in the ringwall 11 setting by penetrating through outside it At least one straight slot 12 of circumferential surface 111 and inner peripheral surface 112, and combine the sound-absorbing sheet body 2, the sound-absorbing piece in 11 inside of ringwall Body 2 can absorb axial flow F1 contact or rub with ontology B caused by noise, with it is certain realize reduce the hair-dryer The effect of generated noise.In addition, at least one straight slot 12 can be for air circulation to form radial air flow F2, and lead to Cross the air inlet B1 of at least one straight slot 12 and the inflow hair-dryer of mesh 21 of the sound-absorbing sheet body 2.Whereby, the present invention is each implements The sound arrester of the hair-dryer of example also is able to auxiliary guiding air-flow, allows the flow to smooth-going and flows into air inlet B1 and avoid generating Vortex, can actually further reduce noise caused by the hair-dryer.
Comparing existing low-noise blower usually has higher cost and smaller air quantity, and various embodiments of the present invention are blown The sound arrester of wind turbine only need by the casing 1 be incorporated into the hair-dryer ontology 3 can realize reduce noise effect, without The internal structure of the hair-dryer is changed, therefore the hair-dryer need not be redesigned, there is relatively low setup cost.Moreover with reference to The casing 1 can't influence the disengaging air quantity of the hair-dryer so that the hair-dryer still possesses higher air quantity.Accordingly, this hair The hair-dryer and its sound arrester of bright each embodiment can actually solve that existing low-noise blower cost is excessively high and air quantity is smaller The problem of, to meet consumer demand.

Claims (16)

1. a kind of sound arrester of hair-dryer, including:
One sleeve, the sleeve include a ringwall, and there are one peripheral surface and an inner peripheral surfaces for ringwall tool, and the ringwall is equipped with extremely A few straight slot, at least one straight slot penetrate through the peripheral surface and the inner peripheral surface;And
One sound-absorbing sheet body, the sound-absorbing sheet body are incorporated into the sleeve and on the inside of the ringwalls, and the sound-absorbing sheet body is equipped with multiple Mesh.
2. the sound arrester of hair-dryer as described in claim 1, which is characterized in that formed between the sound-absorbing sheet body and the inner peripheral surface One gap.
3. the sound arrester of hair-dryer as claimed in claim 2, which is characterized in that the gap is between 0.2mm~3mm.
4. the sound arrester of hair-dryer as described in claim 1, which is characterized in that the sound-absorbing sheet body forms loop shaped.
5. the sound arrester of hair-dryer as described in claim 1, which is characterized in that the sound-absorbing sheet body, which is completely covered, covers this at least One straight slot is in the side of the inner peripheral surface.
6. the sound arrester of hair-dryer as described in claim 1, which is characterized in that at least one straight slot is in the periphery of the ringwall The area summation in face and the ratio of the surface area of the peripheral surface are a percent opening, and the percent opening is between 15%~80%.
7. the sound arrester of hair-dryer as described in claim 1, which is characterized in that the sound-absorbing sheet body surpasses made of metal material Micropore plate body.
8. the sound arrester of hair-dryer as claimed in claim 7, which is characterized in that the sound-absorbing sheet body is aluminium sheet.
9. the sound arrester of hair-dryer as described in claim 1, which is characterized in that multiple mesh of the sound-absorbing sheet body are by punching press shape Into, and the punching rate of the sound-absorbing sheet body is below 0.7%.
10. the sound arrester of hair-dryer as described in claim 1, which is characterized in that also comprise a strainer, the strainer is at this It is set in the axial direction of ringwall between an ora terminalis of the ringwall and the sound-absorbing sheet body.
11. the sound arrester of hair-dryer as described in claim 1, which is characterized in that at least one straight slot is strip hole slot.
12. the sound arrester of hair-dryer as claimed in claim 11, which is characterized in that the extending direction of at least one straight slot with The axial angle of the ringwall is more than 0 ° and less than 90 °.
13. the sound arrester of hair-dryer as claimed in claim 11, which is characterized in that at least one straight slot is along the ringwall It is axially extending.
14. the sound arrester of hair-dryer as described in claim 1, which is characterized in that at least one straight slot is multiple, and each logical Slot is round or oval hole slot.
15. a kind of hair-dryer, equipped with such as claim 1 to 14 any one of them sound arrester, and including:
One ontology, the ontology are set there are one air inlet, which is incorporated into the ontology, make the ringwall around the air inlet.
16. hair-dryer as claimed in claim 15, which is characterized in that the ringwall of the sound arrester is in an ora terminalis in axial direction If there are one engaging portions, which is incorporated into the air inlet periphery of the ontology.
CN201710018621.6A 2016-12-30 2017-01-11 Hair dryer and sound absorption device thereof Pending CN108260912A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW105144200A TWI638620B (en) 2016-12-30 2016-12-30 Blower and noise-absorbing device thereof
TW105144200 2016-12-30

Publications (1)

Publication Number Publication Date
CN108260912A true CN108260912A (en) 2018-07-10

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CN (1) CN108260912A (en)
TW (1) TWI638620B (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US11434929B2 (en) 2019-08-02 2022-09-06 Techtronic Cordless Gp Blowers having noise reduction features
GB2606394A (en) * 2021-05-07 2022-11-09 Dyson Technology Ltd An attachment for a haircare appliance
US11778960B2 (en) 2020-01-21 2023-10-10 Techtronic Cordless Gp Blowers
US11817073B2 (en) 2020-01-21 2023-11-14 Techtronic Cordless Gp Power tool having noise reduction features

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112155303A (en) * 2020-10-28 2021-01-01 浙江月立电器有限公司 Electric hair drier

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CN102186327A (en) * 2009-12-31 2011-09-14 英特尔公司 Quiet system cooling using coupled optimization between integrated micro porous absorbers and rotors
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CN202386031U (en) * 2011-12-05 2012-08-22 杨睿宏 Noise reducing structure of hairdryer
CN105934177A (en) * 2014-01-23 2016-09-07 康奈尔公司 Hair dryer apparatus with noise reducing end cap

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Publication number Priority date Publication date Assignee Title
US6067724A (en) * 1997-07-28 2000-05-30 Depoyian; Jacques Interchangeable brush head hair dryer
TW200606343A (en) * 2004-08-02 2006-02-16 Sunonwealth Electr Mach Ind Co Centrifugal blower having auxiliary radial inlets
CN102186327A (en) * 2009-12-31 2011-09-14 英特尔公司 Quiet system cooling using coupled optimization between integrated micro porous absorbers and rotors
US20120024620A1 (en) * 2010-07-29 2012-02-02 Parlux S.P.A. Silencer device for a hair dryer
CN202386031U (en) * 2011-12-05 2012-08-22 杨睿宏 Noise reducing structure of hairdryer
CN105934177A (en) * 2014-01-23 2016-09-07 康奈尔公司 Hair dryer apparatus with noise reducing end cap

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11434929B2 (en) 2019-08-02 2022-09-06 Techtronic Cordless Gp Blowers having noise reduction features
US11841023B2 (en) 2019-08-02 2023-12-12 Techtronic Cordless Gp Blowers having noise reduction features
US11778960B2 (en) 2020-01-21 2023-10-10 Techtronic Cordless Gp Blowers
US11817073B2 (en) 2020-01-21 2023-11-14 Techtronic Cordless Gp Power tool having noise reduction features
GB2606394A (en) * 2021-05-07 2022-11-09 Dyson Technology Ltd An attachment for a haircare appliance
GB2606394B (en) * 2021-05-07 2023-10-18 Dyson Technology Ltd An attachment for a haircare appliance

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