CN105962827A - Hand dryer - Google Patents
Hand dryer Download PDFInfo
- Publication number
- CN105962827A CN105962827A CN201610509280.8A CN201610509280A CN105962827A CN 105962827 A CN105962827 A CN 105962827A CN 201610509280 A CN201610509280 A CN 201610509280A CN 105962827 A CN105962827 A CN 105962827A
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- CN
- China
- Prior art keywords
- air inlet
- air
- hand dryer
- drainage hood
- baffle plate
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/48—Drying by means of hot air
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Air-Conditioning For Vehicles (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention relates to the technical field of hand dryers and provides a hand dryer. The hand dryer comprises a casing and a motor arranged in the casing, wherein a first air inlet is formed in the casing, and the motor is provided with a second air inlet; the second air inlet is covered with a flow guide hood, and an opening is formed in the flow guide hood and communicated with the first air inlet. By means of the flow guide hood arranged on the periphery of the air inlet of the motor in a covered manner, the air inlet of the motor is enabled to the communicated with the air inlet in the casing of the hand dryer, and inlet airflow about to enter the second air inlet is guided, so that inlet air noise of the second air inlet can be reduced or even eliminated; besides, the flow guide hood further excellently isolates motor noise directly emitted from the second air outlet, and comprehensively, noise of the whole hand dryer can be greatly reduced by the flow guide hood.
Description
Technical field
The present invention relates to hand dryer technical field, specifically provide and a kind of be provided with the dry of noise-reducing components
Mobile phone.
Background technology
In recent years, at the restaurant, hotel, the lavatory/toilet of public place such as commercial affairs office building etc.,
It is typically equipped with inserting for the wet hands after washing, being dried set by the hands of blowout hot blast
Standby, for people's hand dryer product that flash baking hands needs after washing hands.This product makes
Sizable noise is produced, in order to reduce this because of air-flow high-speed motion and motor self during with
Noise, promotes the experience of user, and prior art is substantially by increasing acoustical cotton in air channel
Reach to absorb the purpose of noise.But, carry out soundproof effect by acoustical cotton merely and fail to understand
Aobvious.
It addition, also have some hand dryers by arranging a water conservancy diversion frame at motor air inlet, and leading
Guide vane is extended, by arcuation guide vane and above-mentioned composition on the axle center part of stream frame
Structure, to reach effectively to reduce noise produced by hand dryer air inlet.It is apparent that this its
Structure relative complex, manufacturing cost is higher.Guide vane and the axiality of electrical axis simultaneously
Require higher, so could maintain and produce less noise.Motor in working order time water conservancy diversion leaf
The rotation of sheet can produce noise equally, and this runs in the opposite direction with the purpose of noise reduction.
Summary of the invention
(1) to solve the technical problem that
The present invention is to solve the existing hand dryer skill that noise is excessive during dry hands
Art problem.
(2) technical scheme
For solving above-mentioned technical problem, the invention provides a kind of hand dryer, this hand dryer includes
Housing and the motor being arranged in described housing；Described housing is provided with the first air inlet, described
Motor has the second air inlet；Drainage hood, described drainage hood it is covered with outside described second air inlet
Being provided with opening, described opening connects with described first air inlet.
Preferably, described drainage hood is by extremely connected with described second air inlet with described opening
Port footpath tapers into.
Preferably, one end that described drainage hood connects with described second air inlet is globoidal structure.
Preferably, described drainage hood is provided with acoustical cotton.
Preferably, on the projecting direction of described second air inlet, described drainage hood and described the
The spacing of two air inlets is more than 8mm.
Preferably, described drainage hood includes first half-shell and the second half-shell；Described first half-shell shape
The periphery of the second air outlet described in Cheng Yu；Described second half-shell detachably connects with described first half-shell
Connecing, to limit a cavity body structure with described opening, described second air outlet is contained in
In described cavity body structure, described opening connects with described first air inlet.
Preferably, described opening is connected with described first air inlet by air intake passage；Described enter
It is provided with baffle plate in wind passage, has for leading between the inwall of described baffle plate and described air intake passage
Cross the gap of air-flow.
Preferably, described baffle plate is perpendicular to the bearing of trend of described air intake passage.
Preferably, described gap is overall structure ringwise.
Preferably, described baffle plate is provided with acoustical cotton towards the side of described first air inlet.
(3) beneficial effect
A kind of hand dryer that the present invention provides, by setting drain at the outer shroud of the air inlet of motor
Cover, and make the air inlet of motor connect with the air inlet on hand dryer housing by this drainage hood,
The charge air flow that i.e. will go into the second air inlet is formed and guides, thus can reduce and even eliminate
The inflow noise of the second air inlet；It addition, this drainage hood also goes out by the second air outlet direct projection
The motor noise come plays good insulating effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of hand dryer of the embodiment of the present invention.
Fig. 2 is kuppe and the exploded view of motor of the embodiment of the present invention.
Fig. 3 is the upward view of the first half-shell of the embodiment of the present invention.
Fig. 4 is the side view of the first half-shell of the embodiment of the present invention.
Fig. 5 is the front view of the first half-shell of the embodiment of the present invention.
Reference:
1, housing；2, hands insertion section；3, the first air inlet；4, the first air outlet；5、
Motor；6, air intake passage；7, air-out passage；8, first half-shell；81, globoidal structure；9、
Second half-shell；10, drainage hood；11, the second air inlet；12, baffle plate.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail
Describe.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited,
Term " connects " and should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be removable
Unload connection, or be integrally connected；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
Embodiment one
Shown in Fig. 1 and Fig. 2, a kind of hand dryer that the embodiment of the present invention one provides, including
Housing 1 and the motor 5 being arranged in housing 1；Housing 1 is provided with the first air inlet 3, electricity
Machine 5 has the second air inlet 11；It is covered with drainage hood 10, drainage hood outside second air inlet 11
On 10 shells being connected to motor 5, and this drainage hood 10 also connects with the first air inlet 3.
This drainage hood 10 is set up an air-flow between the first air inlet 3 and the second air inlet 11 and is led to
Road, is incorporated into the gas entered by the first air inlet 3 in motor 5.It addition, on housing 1
Being additionally provided with hands insertion section 2, the inwall of this hands insertion section 2 is provided with the first air outlet 4；Motor
5 also have the second air outlet, be communicated with air-out and lead between the first air outlet 4 and the second air outlet
Road 7.
Thus, when motor 5 operates, air-flow enters from the first air inlet 3, then sequentially passes through
Air intake passage the 6, second air inlet the 11, second air outlet and air-out passage 7, finally by
One air outlet 4 enters in insertion section 2 in one's hands, brushes the hand of user.
Wherein, owing to drainage hood 10 is the periphery covering on the second air inlet 11, i.e. enter second
The peripheral cavity structure forming a little scope in air port 11, this cavity structure can be to entering
The charge air flow entering the second air inlet 11 plays the effect of water conservancy diversion, by chaotic air-flow specification is
It is approximately towards the direction of the second air inlet 11, and the softening intensity of air-flow, thus reduce
Even eliminate the inflow noise of the second air inlet 11.
It is maximum for being additionally, since the volume that motor noise goes out by the second air outlet direct projection, institute
With, when the outer shroud of the second air outlet sets drainage hood 10, also can be to straight by the second air outlet
The motor noise shot out forms reflection and absorbs, and plays good insulating effect, the most significantly
Reduce the motor noise outwards spread out of.
On the projecting direction of the second air outlet, drainage hood 10 is excellent with the spacing of the second air outlet
Choosing, more than 8mm, thus makes above-mentioned cavity body structure have enough guide space, it is sufficient to entering
Entraining air stream guiding is integrally formed.
Preferably acoustical cotton is set on drainage hood 10, in the inner side and outer side of drainage hood 10
Arrange, to strengthen the drainage hood 10 assimilation effect to motor noise.In general, this drain
Cover 10 can be greatly reduced the complete machine noise of hand dryer.
In conjunction with shown in Fig. 3 to Fig. 5, above-mentioned drainage hood 10 can be by a first half-shell
8 and second half-shell 9 constitute；First half-shell 8 is formed at the periphery of the second air outlet；The
Two half-shell 9 removably connect with first half-shell 8, to limit a cavity knot with opening
Structure, houses the second air outlet by this cavity body structure.
It addition, drainage hood 10 by its opening to one end bore of connecting with the second air inlet 11 by
Gradual change is little, and i.e. the area of drainage hood 10 upper shed is than drainage hood 10 and the second air inlet 11
The aperture area of one end of connection is big, and on airintake direction, the inner space of drainage hood 10
It is diminishing, say, that charge air flow is played a work gathered by drainage hood 10
With, make the charge air flow that will enter the second air inlet 11 more concentrate, decrease second
The outer chaotic air-flow formed of air inlet 11, reduce further pneumatic noise.
One end that drainage hood 10 connects with the second air inlet 11 is preferably globoidal structure 81, should
Globoidal structure 81 part is the part being connected mutually with the second air inlet 11 region, to entering second
The stream condition impact maximum of air inlet 11, however the shape of its cambered surface be more beneficial for will
The charge air flow specification entering into the second air inlet 11 is to be perpendicular to the side of the second air inlet 11
To, make charge air flow enter the second air inlet 11 more smoothly, thus can reduce gas further
Stream noise.
Embodiment two
A kind of hand dryer that the embodiment of the present invention two provides, including any one of embodiment one
Possible embodiment, and on its basis, also done following improvement:
Referring again to Fig. 1, the opening of drainage hood 10 passes through air intake passage 6 and the first air inlet 3
Connection, the channel design that this air intake passage 6 can be formed in housing 1, at air intake
It is provided with baffle plate 12 in passage 6, has for leading between the inwall of baffle plate 12 and air intake passage 6
Crossing the gap of air-flow, the shape in this gap can be, but not limited to be annular, crescent, polygon
Deng, as long as charge air flow can be made to pass through, but preferably annular, it is ensured that air-flow
Uniformly through.
Existence due to this baffle plate 12, on the one hand, the noise sent when motor 5 leads to along air intake
When road 6 is outwards propagated, can be by the stop of this baffle plate 12, part motor noise is reflected back toward
Going, part motor noise also can be absorbed by baffle plate 12, so that traveling to the first air inlet 3
Outside noise be substantially reduced；Another is convenient, the first air inlet 3 air-flow entered can be subject to
The stop of baffle plate 12, charge air flow is first disperseed, and by repolymerization behind gap, this process will
Air-flow is reintegrated, and the air-flow that originally there is sinuous flow is integrated into the gas that air flow direction is the most homogeneous
Flow, and the oscillation intensity of air-flow also can weaken, and thus makes the noise that charge air flow itself produces also
Reduce.
Outwards spread out of it follows that the setting of this baffle plate 12 is possible not only to cut down motor noise,
The produced noise of charge air flow itself can also be reduced, significantly reduce whole the most on the whole
Machine noise.
It addition, the bearing of trend that baffle plate 12 is preferably normal to air intake passage 6 is arranged, i.e. enter
The wind passage 6 cross section at baffle plate 12 present position is to overlap with baffle plate 12 place plane
's.So arrange and be advantageous in that, on the one hand, the noise sent due to motor 5 is mainly edge
Air intake passage 6 outwards to spread out of, so when motor noise propagates to baffle plate 12 position,
Motor noise impinges perpendicularly on baffle plate 12, now the baffle plate 12 reflection to motor noise
Rate is the highest, i.e. optimal to the blocking effect of motor noise.On the other hand, due to baffle plate 12 it is
It is perpendicular to the direction of charge air flow, so after on charge air flow vertical directive baffle plate 12,
Meeting uniform four is scattered, and without concentrating to side, thus can avoid shape when by gap
Become local high velocity air, and then the generation of squeal-noise can be avoided.
The cross sectional shape of baffle plate 12 and air intake passage 6 is preferably all circle, and, baffle plate 12
Edge and the inwall of air intake passage 6 between formed gap be preferably annular, say, that
, there is not the situations such as local slot, thus may be used in the different circumferential position even width in this gap
Make the dispersed charge air flow come uniform by the gap of this annular again, point will not be produced
Sharp noise.It should be noted that the cross sectional shape of baffle plate 12 and air intake passage 6 is the most more than
It is confined to circle, such as, can also is that the cross section shape of shape and the air intake passage 6 making baffle plate 12
Shape adapts, it is possible to make to form therebetween uniform annular gap.
Further, the spacing between edge and the inwall of the first air intake passage 6 of baffle plate 12
Preferably 1～5cm, more preferably 2～3cm, thus, can be equal in the gap ensureing this annular
Even by charge air flow while, additionally it is possible to ensure enough air inflows, and this width
Gap is also not easy to make air-flow form dither, i.e. will not send more sharp-pointed noise.
Baffle plate 12 is fixing with air intake passage 6 to be connected, and preferably employs the material system that rigidity is stronger
Become, in case baffle plate 12 makes a noise because of vibration in high velocity air, also will not disturb simultaneously
Dynamic charge air flow.
Baffle plate 12 is provided with acoustical cotton towards the side of the first air inlet 3, during air inlet,
First charge air flow beats at baffle plate 12 towards the side of the first air inlet 3, charge air flow subsequently
Can fit this side surface of baffle plate 12, by center to edge flowing, and owing to baffle plate 12 is towards
The side of one air inlet 3 is provided with acoustical cotton, so charge air flow is actually at baffle plate 12 table
The acoustical cotton in face flows, and baffle plate 12 to be it towards the side of the first air inlet 3 main with
The part that charge air flow comes in contact, so arranging of this acoustical cotton can be greatly reduced air inlet gas
Friction noise before stream and baffle plate 12.
Further, preferably removably connect between acoustical cotton and baffle plate 12, due to sound-absorbing
Dust etc. in charge air flow, while sound-absorbing, also can be played certain interception function by cotton,
Therefore after life-time service, acoustical cotton is easily mingled with a large amount of dust, so can affect sound-absorbing effect
With by property, and after will being set to removably connect between acoustical cotton and baffle plate 12, just can determine
Acoustical cotton is replaced by the phase, ensure that the sound-absorbing effect of acoustical cotton with this.
Can also is that and be provided with acoustical cotton in baffle plate 12 outsourcing, say, that baffle plate 12 except
Outside there is acoustical cotton towards the side of the first air inlet 3, in its edge and first enter dorsad
The side in air port 3 also is provided with acoustical cotton；The acoustical cotton being present in baffle plate 12 edge can be
Charge air flow plays sound absorption when walking around baffle plate 12 edge, improves sound-absorbing effect further；
And the acoustical cotton being present in baffle plate 12 first air inlet 3 side dorsad can absorb part motor
Noise, the most further reduce complete machine noise.This acoustical cotton can be Whole-dismountable
Be sheathed on baffle plate 12, be convenient for changing.
All in all, above-mentioned baffle plate 12 and drainage hood 10 all can respectively to charge air flow noise and
Motor noise forms good inhibition, therefore when the two is applied in combination, and can very great Cheng
The reduction complete machine noise of degree.
It addition, when drainage hood 10 and baffle plate 12 are applied in combination, its noise reduction is but not only
Simple superposition, because charge air flow is in the gap between baffle plate 12 and air intake passage
After, can naturally produce the trend gathered to centre, during now air-flow is in drainage hood
In 10, and the proper flow tendency with internal gas flow self of the space structure within drainage hood is fitted mutually
Should, therefore rectification effect is more preferably, and kuppe 10 is again by the guide functions of itself, will
The homogeneity of air-flow maintains, until air-flow sends into the second air inlet 11 the most at last.
Visible, kuppe 10 by with the coordinating of baffle plate 12, can play and more preferably reduce air-flow
The effect of noise.
The above is only the preferred embodiment of the present invention, it is noted that lead for this technology
For the those of ordinary skill in territory, on the premise of without departing from the technology of the present invention principle, it is also possible to
Making some improvement and replacement, these improve and replace and also should be regarded as protection scope of the present invention.
Claims (10)
1. a hand dryer, it is characterised in that include housing and be arranged in described housing
Motor；Described housing is provided with the first air inlet, and described motor has the second air inlet；Described
Being covered with drainage hood outside second air inlet, described drainage hood is provided with opening, described opening and institute
State the first air inlet connection.
Hand dryer the most according to claim 1, it is characterised in that described drainage hood by
Taper into one end bore connected with described second air inlet with described opening.
Hand dryer the most according to claim 2, it is characterised in that described drainage hood with
One end of described second air inlet connection is globoidal structure.
Hand dryer the most according to claim 1, it is characterised in that on described drainage hood
It is provided with acoustical cotton.
Hand dryer the most according to claim 1, it is characterised in that enter described second
On the projecting direction in air port, described drainage hood is more than 8mm with the spacing of described second air inlet.
Hand dryer the most according to claim 1, it is characterised in that described drainage hood bag
Include first half-shell and the second half-shell；Described first half-shell is formed at outside described second air outlet
Enclose；Described second half-shell removably connects with described first half-shell, has institute limiting one
Stating the cavity body structure of opening, described second air outlet is contained in described cavity body structure, described in open
Mouth connects with described first air inlet.
7. according to the hand dryer described in any one of claim 1 to 6, it is characterised in that institute
State opening to be connected with described first air inlet by air intake passage；It is provided with gear in described air intake passage
Plate, has between the inwall of described baffle plate and described air intake passage for by the gap of air-flow.
8. according to claim 7 to described hand dryer, it is characterised in that described baffle plate hangs down
Straight in the bearing of trend of described air intake passage.
9. according to claim 7 to described hand dryer, it is characterised in that described gap is
Overall structure ringwise.
10. according to claim 7 to described hand dryer, it is characterised in that described baffle plate court
It is provided with acoustical cotton to the side of described first air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509280.8A CN105962827B (en) | 2016-06-29 | 2016-06-29 | Hand drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509280.8A CN105962827B (en) | 2016-06-29 | 2016-06-29 | Hand drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105962827A true CN105962827A (en) | 2016-09-28 |
| CN105962827B CN105962827B (en) | 2020-04-10 |
Family
ID=56954544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610509280.8A Active CN105962827B (en) | 2016-06-29 | 2016-06-29 | Hand drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105962827B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010825A1 (en) * | 2021-08-04 | 2023-02-09 | 追觅科技(苏州)有限公司 | Air-out apparatus, display assembly and hand dryer |
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| CN205107528U (en) * | 2015-09-25 | 2016-03-30 | 台山市捷达电器有限公司 | Solid hand dryer of blowing |
| CN206239309U (en) * | 2016-06-29 | 2017-06-13 | 广东美的环境电器制造有限公司 | Hand dryer |
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| CN101427894A (en) * | 2007-11-07 | 2009-05-13 | 乐金电子(天津)电器有限公司 | Shock-absorption noise-reduction connecting structure of dust aspirator motor |
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| CN201418704Y (en) * | 2009-04-28 | 2010-03-10 | 和光工业股份有限公司 | Air inlet structure of high-air-pressure hand dryer |
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| WO2023010825A1 (en) * | 2021-08-04 | 2023-02-09 | 追觅科技(苏州)有限公司 | Air-out apparatus, display assembly and hand dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105962827B (en) | 2020-04-10 |
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