CN101791203B - Hand drier - Google Patents

Hand drier Download PDF

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Publication number
CN101791203B
CN101791203B CN2010100015070A CN201010001507A CN101791203B CN 101791203 B CN101791203 B CN 101791203B CN 2010100015070 A CN2010100015070 A CN 2010100015070A CN 201010001507 A CN201010001507 A CN 201010001507A CN 101791203 B CN101791203 B CN 101791203B
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China
Prior art keywords
air nozzle
nozzle portion
mentioned
elongated orifices
hand
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CN101791203A (en
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龟石圭司
小林章树
中村淳
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to CN2010100015070A priority Critical patent/CN101791203B/en
Publication of CN101791203A publication Critical patent/CN101791203A/en
Priority to HK10108653.9A priority patent/HK1142252A1/en
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Abstract

The invention discloses a hand drier. The hand drier comprises a box body (1), a high-pressure air flow generator (2) and air nozzle parts (6a, 6b) oppositely arranged on a front side and a back side, wherein a concave hand insertion part (3) is formed on the box body (1); the high-pressure air flow generator (2) is internally arranged inside the box body (1) generating high-pressure air flow; the air nozzle parts (6a, 6b) oppositely arranged on the front side and the back side spray the high-pressure air flow generated by the high-pressure air flow generator (2) to the hand insertion part (3) and are formed by a plurality of linear slit-shaped nozzles (7), so that the lengths and/or the setting intervals of the slit-shaped nozzles (7) are different on the front side and the back side. The hand drier has the advantages of noise prevention, high drying efficiency, good handfeel, and no complex structure.

Description

Drying apparatus for hands
The application's denomination of invention that to be Mitsubishi Electric Corporation proposed on 08 18th, 2005 is dividing an application of 200580001769.4 application for " drying apparatus for hands ", application number.
Technical field
The present invention relates to through spraying the hand hygiene ground withering drying apparatus for hands of high velocity air the humidity after cleaning.
Background technology
The drying apparatus for hands of having developed is to cleaning the moist hand in back without wipings such as towel or handkerchiefs, but carries out moisture is blown off and the hand dried of dry health through spraying high velocity air.This device utilizes the kinetic energy of high velocity air in order to blow off attached to moisture on hand, therefore, have the problem that turbulent flow, generation noise take place owing to the collision between the relative jet.
Therefore, in patent documentation 1, with the nozzle formation slit squit hole of a side, relative nozzle forms the structure of the circular hole squit hole roughly being arranged to row, through reducing the turbulent flow that is produced by the collision between the relative jet, suppresses generation of noise with this.
Patent documentation 1: the spy opens the 2001-104212 communique
In patent documentation 1, though can reduce the turbulent flow that produces owing to the collision between the jet, owing to use the round shape jet of drying efficiency than slit jet difference in a side, so it is poor to have the drying property of positive and negative of comprehensive hand, impairs the problem of usability.
The present invention proposes in view of the above problems, and its purpose is to obtain not adopt complicated structure just can prevent noise, the drying apparatus for hands that drying property is strong, usability is good simultaneously.
Summary of the invention
In order to solve above-mentioned problem, to realize purpose, the present invention is a kind of drying apparatus for hands, has: body casing, high pressure draught generation device and opposite front side and rear side air nozzle portion, and the body casing has the hand insertion section that forms concavity on top; The high pressure draught generation device is built in the body casing that produces high pressure draught; Opposite front side and rear side air nozzle portion will spray to the hand insertion section through the high pressure draught that said high pressure draught generation device generates; It is characterized in that; Form said face side and rear side air nozzle portion through a plurality of slit-shaped ejiction openings of being arranged to wire respectively, make the slit-shaped ejiction opening length and/or slit-shaped ejiction opening be provided with different in face side at interval with rear side.
Next invention is a kind of drying apparatus for hands, has: body casing, high pressure draught generation device and opposite front side and rear side air nozzle portion, and the body casing has the hand insertion section that forms concavity on top; The high pressure draught generation device is built in the body casing that produces high pressure draught; Opposite front side and rear side air nozzle portion will spray to the hand insertion section through the high pressure draught that said high pressure draught generation device generates; It is characterized in that; Form said face side and rear side air nozzle portion through a plurality of slit-shaped ejiction openings of being arranged to wire respectively; The slit-shaped ejiction opening of face side is formed longer than the slit-shaped ejiction opening of rear side so that clamp zone that relative high pressure draught do not collide and form the zone of the different high pressure draughts collision of length in both sides.
Another invention is a kind of drying apparatus for hands, has: body casing, high pressure draught generation device and opposite front side and rear side air nozzle portion, and the body casing has the hand insertion section that forms concavity on top; The high pressure draught generation device is built in the body casing that produces high pressure draught; Opposite front side and rear side air nozzle portion will spray to the hand insertion section through the high pressure draught that said high pressure draught generation device generates; It is characterized in that; Form said face side and rear side air nozzle portion through a plurality of slit-shaped ejiction openings of being arranged to wire respectively; Being provided with of the slit-shaped ejiction opening of face side formed at interval shorter at interval than being provided with of the slit-shaped ejiction opening of rear side so that clamp zone that relative high pressure draught do not collide and form the zone of the different high pressure draughts collision of length in both sides.
According to drying apparatus for hands of the present invention; A plurality of slit-shaped ejiction openings through being arranged to wire respectively form face side and rear side air nozzle portion; Make the slit-shaped ejiction opening length and/or slit-shaped ejiction opening be provided with different in face side at interval with rear side; Therefore, can obtain not adopt complicated structure just can prevent noise, the drying apparatus for hands that drying property is strong, usability is good simultaneously.
Invent according to the next one; A plurality of slit-shaped ejiction openings through being arranged to wire respectively form face side and rear side air nozzle portion; The slit-shaped ejiction opening of face side forms longer than the slit-shaped ejiction opening of rear side, so that clamp zone that relative high pressure draught do not collide and form the zone of the different high pressure draughts collision of length in both sides, therefore; Do not adopt complicated structure just can prevent to produce noise, can improve drying property and usability, and can make palm of the hand the back of the hand dry equably.
According to another invention; Form above-mentioned face side and rear side air nozzle portion through a plurality of slit-shaped ejiction openings of being arranged to wire respectively; Being provided with of the slit-shaped ejiction opening of face side formed at interval shorter at interval than being provided with of rear side slit-shaped ejiction opening; So that clamp zone that relative high pressure draught do not collide and form the zone of the different high pressure draughts collision of length in both sides; Therefore, do not adopt complicated structure just can prevent to produce noise, can improve drying property and usability, and can make palm of the hand the back of the hand dry equably.
In addition; The present invention also provides a kind of drying apparatus for hands; Have hand insertion section and high pressure draught generation device, said hand insertion section is provided with air nozzle portion with mutual relative mode, and this air nozzle portion includes the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; Said high pressure draught generation device is communicated with above-mentioned air nozzle portion via air supply path; It is characterized in that; The pressure-air that said air nozzle portion will produce in above-mentioned high pressure draught generation device sprays as high speed airflow; With the center of the elongated orifices of the opposing party's air nozzle portion, stagger on above-mentioned a plurality of elongated orifices are arranged in a straight line the direction of shape in the inboard center each other, end of adjacent two elongated orifices of the side's in this air nozzle portion air nozzle portion.
And; The present invention also provides a kind of drying apparatus for hands; Have hand insertion section and high pressure draught generation device, said hand insertion section is provided with air nozzle portion with mutual relative mode, and this air nozzle portion includes the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; Said high pressure draught generation device is communicated with above-mentioned air nozzle portion via air supply path; It is characterized in that; The pressure-air that said air nozzle portion will produce in above-mentioned high pressure draught generation device sprays as high speed airflow; With the center of the elongated orifices of the opposing party's air nozzle portion, stagger on above-mentioned a plurality of elongated orifices are arranged in a straight line the direction of shape in the center of the elongated orifices of the side's in this air nozzle portion air nozzle portion.
In addition; The present invention also provides a kind of drying apparatus for hands; Have hand insertion section and high pressure draught generation device, said hand insertion section is provided with air nozzle portion with mutual relative mode, and this air nozzle portion includes the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; Said high pressure draught generation device is communicated with above-mentioned air nozzle portion via air supply path; It is characterized in that; The pressure-air that said air nozzle portion will produce in above-mentioned high pressure draught generation device sprays as high speed airflow; Between two adjacent elongated orifices of the side's in this air nozzle portion air nozzle portion, be in the position relation that overlaps with the relative elongated orifices of the opposing party's air nozzle portion, simultaneously; The length that an elongated orifices in above-mentioned adjacent two elongated orifices and above-mentioned relative elongated orifices coincide, the length that coincides with another elongated orifices in above-mentioned adjacent two elongated orifices and above-mentioned relative elongated orifices is different.
In addition, the present invention also provides a kind of drying apparatus for hands, has: have the body that hand inserts mouth on top; Hand insertion section with front wall and back side wall, said front wall inserts mouthful extension towards the below from above-mentioned hand, and said back side wall inserts mouth with the mode relative with above-mentioned front wall from above-mentioned hand and extends towards the below; Face side air nozzle portion, this face side air nozzle portion be arranged on the wall of above-mentioned front, include the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; Rear side air nozzle portion, this rear side air nozzle portion be arranged on the wall of the above-mentioned back side, include the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; The high pressure draught generation device; This high pressure draught generation device is communicated with via air supply path and above-mentioned face side air nozzle portion and above-mentioned rear side air nozzle portion; It is characterized in that; The pressure-air that said face side air nozzle portion will produce in above-mentioned high pressure draught generation device sprays as high speed airflow, constitutes slit towards both sides with the mode of arranging to oblique below from the central authorities of this face side air nozzle portion; Said rear side air nozzle portion sprays above-mentioned pressure-air as high speed airflow; Constitute slit towards both sides with the mode of arranging from the central authorities of this rear side air nozzle portion to oblique below; The adjacent inboard center each other, end of two elongated orifices of above-mentioned rear side air nozzle portion; With the center of the elongated orifices of above-mentioned face side air nozzle portion,, above-mentioned a plurality of elongated orifices stagger on being arranged in a straight line the direction of shape.
And the present invention also provides a kind of drying apparatus for hands, has: have the body that hand inserts mouth on top; Hand insertion section with front wall and back side wall as the concavity space, said front wall inserts mouthful extension towards the below from above-mentioned hand, and said back side wall inserts mouth with the mode relative with above-mentioned front wall from above-mentioned hand and extends towards the below; Face side air nozzle portion, this face side air nozzle portion be arranged on the wall of above-mentioned front, include the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; Rear side air nozzle portion, this rear side air nozzle portion be arranged on the wall of the above-mentioned back side, include the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; The high pressure draught generation device; This high pressure draught generation device is communicated with via air supply path and above-mentioned face side air nozzle portion and above-mentioned rear side air nozzle portion; It is characterized in that; The pressure-air that said face side air nozzle portion will produce in above-mentioned high pressure draught generation device sprays as high speed airflow, constitutes a plurality of elongated orifices towards both sides with the mode of arranging to oblique below from the central authorities of this face side air nozzle portion; Said rear side air nozzle portion sprays above-mentioned pressure-air as high speed airflow; Constitute a plurality of elongated orifices towards both sides with the mode of arranging from the central authorities of this rear side air nozzle portion to oblique below; Between two adjacent elongated orifices of above-mentioned rear side air nozzle portion; Be in the position relation that overlaps with the relative elongated orifices of above-mentioned face side air nozzle portion; Simultaneously, the length that an elongated orifices in above-mentioned adjacent two elongated orifices and above-mentioned relative elongated orifices coincide, the length that coincides with another elongated orifices in above-mentioned adjacent two elongated orifices and above-mentioned relative elongated orifices is different.
Description of drawings
Fig. 1 is the stereogram of the drying apparatus for hands of expression embodiment.
Fig. 2 is the integrally-built front view of air current spray nozzle portion of the drying apparatus for hands of expression embodiment.
Fig. 3 is the cutaway view of structure of slit-shaped ejiction opening of the drying apparatus for hands of expression embodiment.
Fig. 4 is the concept map of the impacting jet action of expression prior art.
Fig. 5 is the concept map that the impacting jet of the drying apparatus for hands of expression embodiment moves.
Fig. 6 is the concept map of setting of the membranaceous jet of expression embodiment.
Fig. 7 is the concept map of expression impacting jet action.
Fig. 8 is the pressure of expression prior art, the oscillogram of noise.
Fig. 9 is the concept map of setting of membranaceous jet of the drying apparatus for hands of expression embodiment.
Figure 10 is the pressure of the drying apparatus for hands of expression embodiment, the oscillogram of noise.
The specific embodiment
Below, be elaborated according to the embodiment of accompanying drawing with regard to drying apparatus for hands of the present invention.In addition, the present invention is not limited to this embodiment.
Utilize Fig. 1~Figure 10 to describe with regard to embodiment of the present invention.Fig. 1 is the figure of surface structure of the drying apparatus for hands of this embodiment of expression.As shown in Figure 1, this drying apparatus for hands has body casing 1, and said body casing 1 is formed in the shell that top has hand insertion section 3.Upper side at body casing 1 is formed with the hand insertion section 3 as the concavity space, and said concavity space is inserted mouth 4 and inserted a mouthful dried space 5 of ining succession with hand through hand and constitutes.Hand insertion section 3 is that two sides are open, forms the opening groove shape of inclination that hand can insert the dark end of extraction, inserts under the state that can two hands planar be alignd, to oblique above-below direction and extracts out.
In body casing 1, be assembled with high pressure draught generation device 2, the air supply path that the high pressure draught that high pressure draught generation device 2 generates is divided into two strands through front side and rear side in hand insertion section 3 (not having diagram), quilt guide to the 6a of air nozzle portion, the 6b of front wall that is arranged on hand insertion section 3 and back side wall.In this drying apparatus for hands; Through these 6a of air nozzle portion that are oppositely arranged, 6b high velocity air is sprayed in hand insertion section 3; To blow off to dried space 5 attached to the moisture on hand that inserts in the insertion section 3 in one's hands; Utilize the water-accepting part of the band gradient of concavity space bottom to reclaim the water that is blown off, the water of this recovery no illustrated discharge outlet and the drainpipe through the inclination lower end is stored in the displacement can 20.Displacement can 20 is provided with demountable lid with respect to body casing 1 detachable.
High pressure draught generation device 2 constitutes by the drive circuit of DC Brushless Motor (also common commutating motor or induction conductivity), drive motor and through the turbofan that DC Brushless Motor is rotated; Be installed in the below of the hand insertion section 3 of body casing 1 in this embodiment, turn round automatically through control circuit (not having diagram).The air inlet side of high pressure draught generation device 2, in the face of being arranged on the inlet channel in the body casing 1, can be from the air outside the suction inlet suction apparatus of inlet channel end.
Whether the wall that forms dried space 5 is provided with hand detecting sensor 9, according to the detection signal of this hand detecting sensor 9, detect hand and insert in the dried spaces 5 through hand insertion section 3.The detection signal of hand detecting sensor 9 is transfused in the above-mentioned control circuit that is mounted with microcomputer, under the situation that this control circuit judgement hand has inserted, switches on, sprays high velocity air through the 6a of air nozzle portion, 6b to high pressure draught generation device 2.
In this drying apparatus for hands; In case the state that aligns naturally with two hands inserts mouthfuls 4 through hand and inserts in the insertion section 3 in one's hands near two hands are substantially to wrist; Then detect in one's hands through hand detecting sensor 9; Processing, high pressure draught generation device 2 through above-mentioned control circuit move, and high velocity air 8a, 8b are sprayed in hand insertion section 3 from the 6a of air nozzle portion, 6b, and the positive and negative of the hand that bump inserts will dispel the bottom side of insertion section 3 in one's hands attached to moisture on hand.And, through in hand insertion section 3, hand being inserted extraction, can all remove attached to whole water droplet on hand, the adversary carries out dried.After the dried of hand finished, in case hand is extracted out from hand insertion section 3 fully, then hand detecting sensor 9 detected this situation, and high pressure draught generation device 2 stops.From the internal face of water droplet that blows off on hand, flow down to the bottom gradually, be stored in the displacement can 20 through drainpipe from discharge outlet attached to hand insertion section 3.
Below, utilize Fig. 2, Fig. 3 just to be elaborated as the 6a of air nozzle portion, the 6b of the critical piece of this embodiment.Fig. 2 is the notion front view of air nozzle 6b of for example representing to observe from face side air nozzle 6a and the rear side of the face side that is oppositely arranged.In the 6a of air nozzle portion of this embodiment, 6b, no matter in face side or rear side, a plurality of slit-shaped ejiction opening 7a, 7b are provided with and form wire, are employed in the crooked wire shaped of central portion in this case.Each slit-shaped ejiction opening 7a, 7b form a little downward-slopingly, so that high velocity air 8a, 8b spray a little downwards.
At this; As shown in Figure 2; In the air nozzle 6b of the air nozzle 6a of face side and rear side; The length L a of the slit-shaped ejiction opening 7a of face side is different with the length L b of the slit-shaped ejiction opening 7b of rear side, and, the slit-shaped ejiction opening 7b that at interval Ca and rear side are set of the slit-shaped ejiction opening 7a of face side that interval Cb is set is different.In this case, the length of slit-shaped ejiction opening forms La>Lb, and being provided with of slit-shaped ejiction opening forms Ca<Cb at interval.In the air nozzle 6a of face side, the length L a of each slit-shaped ejiction opening 7a and be provided with that at interval Ca is identical, and, overleaf on the 6b of air nozzle portion of side, the length L b of each slit-shaped ejiction opening 7b and be provided with that Cb is identical at interval.
Fig. 3 is the cutaway view of slit-shaped ejiction opening 7a of expression or 7b.Form a plurality of recesses 10 (with protuberance 11) that extend along the flow direction of air-flow in the inboard of the wall that is formed with slit-shaped ejiction opening 7, make air-flow produce small turbulent flow through these recesses.In this case, as shown in Figure 3, the inboard of lower wall surface forms a plurality of recesses 10 and protuberance 11 on formation slit-shaped ejiction opening 7.
Jet helps blowing off the moisture attached on hand to surperficial the acting on of hand powerfully.As everyone knows, the power of jet can utilize air fluid amount of exercise, be that atmospheric density, flow, the long-pending of flow velocity are evaluated.But just with the hand collision after the power of impacting jet generation directly to attached on hand moisture effect.As shown in Figure 4, under the situation of the nozzle that a plurality of circular holes 50 is formed the row shape, the impacting jet formation of spraying from each circular hole 50 is diffused as radial wall flow 15, therefore, forms big viscous flow zone 16 with adjacent wall flow 15 further collisions.In this remains in a standstill zone 16, owing to be used on the moisture that is attached on hand as the masterpiece that remains on hand, therefore, the residual moisture that striated is arranged on the moving direction at hand in the insertion extraction action of carrying out hand.
On the other hand, in slit-shaped jet 7, for the distortion of the nozzle that prevents to cause and suppress the turbulent flow of nozzle interior, generally the length of ejiction opening 7 is suitably separated by internal pressure.Though segregation method has the situation that forms a plurality of independent nozzles and in a nozzle, the situation as the flank of partition wall is set, its effect is identical.As shown in Figure 5, under the situation of the impacting jet of the slit-shaped ejiction opening 7 after use separating, form the meet at right angles wall flow 15 of direction of length with ejiction opening.This is to be restricted owing to air-flow flows to ejiction opening longitudinally; Only on the end longitudinally that is not restricted, vertically forming wall flow 15; Therefore, under the situation of slit-shaped ejiction opening 7, the viscous flow zone 16 that is created between the adjacent ejiction opening is compared very little with the situation of circular hole 50; Therefore to compare the amount of moisture that remains on hand less for the ejiction opening 7 of slit-shaped and circular hole 50, and drying efficiency is high.
But, as shown in Figure 6 under the relative situation of slit-shaped ejiction opening 7, in case, then will produce turbulent and be accompanied by turbulent bigger noise in impact portions from membranaceous jet 8a, 8b collision relatively hand insertion section 3 in of slit-shaped ejiction opening 7 ejections.As shown in Figure 7; Jet 8a, 8b each other with small angle case of collision under; Especially above impact portions, in case a side air-flow shunted by bending significantly; The corresponding amount of exercise of the angle that then will produce and be bent changes, and therefore produces the power of the jet that relative shunting is pushed back with strength.In case be pushed back, then shunt to opposite direction through poised state.This a series of self-excited vibration forms the pressure variation and the distributary division to the impact portions below applies variation, propagates into large-scale turbulent flow and the pressure that membranaceous jet shown in Figure 6 is whole, generation has jet length and change.Because pressure changes the noise that produces greatly, therefore make the user that uncomfortable feeling arranged.And in case it is extensive to change formation, then pressure changes and will propagate to the inner jet flow direction of jet, and also the air nozzle portion 6 of process upstream side arrives high pressure draught generation devices 2 sometimes.In this case; The pressure of discharging from high pressure draught generation device 2 also changes; Therefore; This variation from air nozzle portion 6 further with jet impact portions interlock, form feedback loop in whole discharge system, produce and be accompanied by the fluctuation that large-scale pressure changes, simultaneously, also possibly become the reason of damaging high pressure draught generation device 2.
Particularly as shown in Figure 6; The length L a=Lb of relative slit-shaped ejiction opening 7a, 7b and adjacent ejiction opening length each other is identical and the situation that Ca=Cb at interval is set of slit-shaped ejiction opening 7a, 7b under; As shown in Figure 8; Pressure waveform increases, and produces the uncomfortable noise with higher crest.
Change in order to suppress above-mentioned pressure; In this embodiment; Make the length L a of slit-shaped ejiction opening 7a of face side different as stated with the length L b of the slit-shaped ejiction opening 7b of rear side; And, make face side slit-shaped ejiction opening 7a the slit-shaped ejiction opening 7b that at interval Ca and rear side are set that interval Cb is set is different.According to such structure, as shown in Figure 9, in jet; The zone 13,14 that the relative jet of formation different length collides in both sides, so that clamp the zone 12 that relative jet does not bump, the pressure change section 13,14 that phase place is different is alternately clamped by the zone 12 that does not produce the pressure variation; Therefore; Shown in figure 10, form level and smooth noise, can suppress to produce noise.
And, in this embodiment, as stated, make the length L a of the slit-shaped ejiction opening 7a of face side be longer than the length L b of the slit-shaped ejiction opening 7b of rear side.In general, therefore palm of the hand side is compared with dorsal side and is not easy drying because the amount of moisture of skin keratin is many.Therefore, if add the power of large stream, then can make palm of the hand the back of the hand dry equably in palm of the hand side.Because the 6a of air nozzle portion of face side is relative with palm of the hand side, if therefore the 6a of air nozzle portion of face side uses the slit ejiction opening longer than the 6b of air nozzle portion of rear side to form, then can dry more equably palm of the hand the back of the hand.But; When the length L a of the slit-shaped ejiction opening 7a that makes face side is longer than the length L b of the slit-shaped ejiction opening 7b of rear side; As described in Fig. 9; Preferably form longlyer than the slit-shaped ejiction opening 7b of rear side through the slit-shaped ejiction opening 7a with face side, so that clamp zone 12 that relative high pressure draught do not bump, form the zone 13,14 that the different high pressure draught of length bumps in both sides, being inhibited with this produces the effect of noise.
And, in this embodiment, as stated, the Ca at interval of being provided with of the slit-shaped ejiction opening 7a of face side is formed and is provided with than the slit-shaped ejiction opening 7b of rear side that Cb is short at interval.Form face side in case with the ejiction opening shorter than rear side the interval is set, then jet collides palm of the hand side in bigger scope, therefore can dry more equably palm of the hand the back of the hand.In addition, from drying property and noise two aspects, ejiction opening is preferably set face side 1~3mm, rear side 4~6mm at interval for.But the Ca at interval of being provided with at the slit-shaped ejiction opening 7a that makes face side is provided with at interval Cb in short-term than the slit-shaped ejiction opening 7b of rear side; As shown in Figure 9; Preferably make the Ca at interval of being provided with of the slit-shaped ejiction opening 7a of face side be provided with than the slit-shaped ejiction opening 7b of rear side that Cb is short at interval; Thereby clamp zone 12 that relative high pressure draught do not bump, form the zone 13,14 that the high pressure draught of different length bumps in both sides, obtain to suppress the effect that noise produces with this.
And, as shown in Figure 3 in this embodiment, form a plurality of concavo-convexly in the inside of slit ejiction opening 7, produce small turbulent flow like this in collision area inner product polar region, so that in collision area, do not produce fluctuation with the scale of collision amplitude.Being used to produce the turbulent shape that is provided with does not have special qualification, can only use recess yet.
In addition; In above-mentioned embodiment; Though make the length L a of slit-shaped ejiction opening 7a of face side different with the length L b of the slit-shaped ejiction opening 7b of rear side; Make face side slit-shaped ejiction opening 7a the slit-shaped ejiction opening 7b that at interval Ca and rear side are set that interval Cb is set is different; But also can only make the length L a of slit-shaped ejiction opening 7a of face side different with the length L b of the slit-shaped ejiction opening 7b of rear side, or only make face side slit-shaped ejiction opening 7a the slit-shaped ejiction opening 7b that Ca and rear side at interval are set that interval Cb is set is different.
As stated, drying apparatus for hands of the present invention is to be used for through spraying the withering drying apparatus for hands in hand hygiene ground of the humidity after high velocity air will be cleaned.

Claims (2)

1. a drying apparatus for hands has: have the body that hand inserts mouth on top; Hand insertion section with front wall and back side wall as the concavity space, said front wall inserts mouthful extension towards the below from above-mentioned hand, and said back side wall inserts mouth with the mode relative with above-mentioned front wall from above-mentioned hand and extends towards the below; Face side air nozzle portion, this face side air nozzle portion be arranged on the wall of above-mentioned front, include the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; Rear side air nozzle portion, this rear side air nozzle portion be arranged on the wall of the above-mentioned back side, include the part that constitutes a plurality of elongated orifices with the mode of the shape that is arranged in a straight line; The high pressure draught generation device, this high pressure draught generation device is communicated with via air supply path and above-mentioned face side air nozzle portion and above-mentioned rear side air nozzle portion, it is characterized in that,
The pressure-air that said face side air nozzle portion will produce in above-mentioned high pressure draught generation device sprays as high speed airflow, constitutes a plurality of elongated orifices towards both sides with the mode of arranging to oblique below from the central authorities of this face side air nozzle portion; Said rear side air nozzle portion sprays above-mentioned pressure-air as high speed airflow; Constitute a plurality of elongated orifices towards both sides with the mode of arranging from the central authorities of this rear side air nozzle portion to oblique below; Between two adjacent elongated orifices of above-mentioned rear side air nozzle portion; Be in the position relation that overlaps with the relative elongated orifices of above-mentioned face side air nozzle portion; Simultaneously, the length that an elongated orifices in above-mentioned adjacent two elongated orifices and above-mentioned relative elongated orifices coincide, the length that coincides with another elongated orifices in above-mentioned adjacent two elongated orifices and above-mentioned relative elongated orifices is different.
2. drying apparatus for hands as claimed in claim 1 is characterized in that, the distance between two adjacent elongated orifices of face side air nozzle portion more than or equal to 1mm smaller or equal to 3mm; Distance between two adjacent elongated orifices of rear side air nozzle portion more than or equal to 4mm smaller or equal to 6mm.
CN2010100015070A 2005-08-18 2005-08-18 Hand drier Active CN101791203B (en)

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Application Number Priority Date Filing Date Title
CN2010100015070A CN101791203B (en) 2005-08-18 2005-08-18 Hand drier
HK10108653.9A HK1142252A1 (en) 2005-08-18 2010-09-13 Hand drying apparatus

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Application Number Priority Date Filing Date Title
CN2010100015070A CN101791203B (en) 2005-08-18 2005-08-18 Hand drier

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Application Number Title Priority Date Filing Date
CNB2005800017694A Division CN100531640C (en) 2005-08-18 2005-08-18 Hands dryer

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CN101791203A CN101791203A (en) 2010-08-04
CN101791203B true CN101791203B (en) 2012-06-20

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Publication number Priority date Publication date Assignee Title
WO2012017570A1 (en) * 2010-08-05 2012-02-09 三菱電機株式会社 Hand dryer device
WO2014049990A1 (en) * 2012-09-27 2014-04-03 パナソニック株式会社 Hand drying device
GB2508144B (en) * 2012-11-21 2015-05-13 Dyson Technology Ltd A hand dryer

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