CN100431863C - Vehicle scavenge duct - Google Patents
Vehicle scavenge duct Download PDFInfo
- Publication number
- CN100431863C CN100431863C CNB2005100073446A CN200510007344A CN100431863C CN 100431863 C CN100431863 C CN 100431863C CN B2005100073446 A CNB2005100073446 A CN B2005100073446A CN 200510007344 A CN200510007344 A CN 200510007344A CN 100431863 C CN100431863 C CN 100431863C
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- air
- scavenge duct
- channel body
- vehicle
- noise
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Abstract
The present invention provides a gas exchanging channel for vehicles, which comprises a channel body, a communication part, a sound absorption chamber, a penetration opening and a ventilation component, wherein the communication part is communicated with the sound absorption chamber by the penetration opening, the ventilation component can close the penetration opening in ventilation type, and the channel body is arranged in a vehicle body. The channel body comprises a framework which is provided with a ventilation opening opened to the exterior of the vehicle, and a valve component which can cover the ventilation opening in an opening and closing way. The communication part is integrated with the channel body, or is mutually independent with the channel body. The communication part is arranged on one side of a vehicle crew department of the channel body, is communicated with the ventilation opening of the channel body, and is communicated with the interior of the vehicle crew department. The air in the interior and the exterior of the vehicle flows out and flows into the channel. Thus, the gas exchanging channel causes the air in the crew department of the vehicle to flow to the exterior of the vehicle, and vice versa.
Description
Technical field
[0001]
The present invention relates to a kind of vehicle scavenge duct, be used for the air of automotive occupant chamber interior is discarded to outside vehicle, perhaps vice versa.
Background technology
[0002]
Vehicle outfitting has scavenge duct, as a kind of drafting apparatus, is used to make the air of automotive occupant chamber interior to flow to outside vehicle, and perhaps vice versa.Scavenge duct comprises vent window, and it is opened to the automotive occupant outdoor and hides shutter member, and shutter member is opened to automotive occupant is outdoor, inwardly closes.Scavenge duct is communicated with the automotive occupant chamber interior with outside vehicle.When opening or closing car door, inrush of air automotive occupant chamber, the air identical with flowing into volume of air pushed shutter member open.The air of pushing shutter member open is discarded to the automotive occupant outdoor by vent window.
[0003]
When shutter member was opened, such as noises such as road noise, tread contour noise and brake noises, it was indoor to enter automotive occupant by vent window from outside vehicle.Japanese unexamined patent publication (putting down) 15-182,344, Japanese unexamined patent publication (putting down) 2001-130,447 and Japanese unexamined patent publication (putting down) 2002-172,927 have disclosed to reducing the invention that noise produces.
[0004]
Japanese unexamined patent publication (putting down) 15-182,344 have disclosed a kind of scavenge duct that resonator is housed.Figure 11 represents the cutaway view of the scavenge duct that provides in this patent gazette.As shown in figure 11, scavenge duct 100 comprises channel body 101, falp value parts 102 and resonator 103.Shown in figure empty arrow, noise enters the resonant cavity 105 of resonator 103 by aperture 104.Resonant cavity 105 utilizes the Helmholtz resonance theory to suppress near the acoustic pressure power of the noises of 63Hz.
[0005]
But, Japanese unexamined patent publication (putting down) 15-182, the scavenge duct that discloses in 344 only suppresses to drop on the acoustic pressure power of limited frequency band in the scope of being rather narrow.Therefore, in order to be suppressed at the acoustic pressure power in the quite wide scope, just need place a plurality of resonators independently, its predetermined rejection band is different.Therefore, scavenge duct 100 is inevitable extended.
[0006]
Japanese unexamined patent publication (putting down) 2001-130,447 have disclosed a kind of air draft structure with guar plate of the air outlet passage of being contained in.Guar plate has the inclined surface that reduces air resistance.Guar plate blocks the noise that passes air outlet passage, thereby this air draft structure reduces noise.
[0007]
But, in the 447 air draft structures that provide,, pass in the automotive occupant chamber by its original state by being arranged on the noise of the guar plate in the air outlet passage at Japanese unexamined patent publication (putting down) 2001-130.Therefore, noise reaches the occupant as annoying sound.And air outlet passage communicates with the vent window of opening in the automotive occupant chamber.Therefore, noise directly arrives the occupant from vent window, thereby the occupant feels that it is unbated at all loud noise.
[0008]
Japanese unexamined patent publication (putting down) 2002-172,927 have disclosed a kind of scavenge duct, and wherein air passage port is formed on the air by-pass passage sidewall, and is placed with the acoustic absorption part on the interior perimeter surface of air by-pass passage.This acoustic absorption part absorbs the noise of propagating in the air by-pass passage, thereby reduces noise.And because air passage port is formed on the position on the air by-pass passage sidewall, noise can directly not arrive the occupant who is sitting in the automotive occupant chamber.As a result, reduced the noise level of occupant's dislike.
[0009]
Japanese unexamined patent publication (putting down) 2002-172, there is a problem in 927 scavenge ducts that disclose, promptly can not obtain sufficient air because the size of air passage port is limited and discharge.That is, unless the outshot of expansion anechoic room, the openings of sizes of air passage port could enlarge.In addition, enter the air-flow of anechoic room at the anechoic room intrinsic deflection by air passage port.Therefore, when air flows through anechoic room inside, produced big air resistance.In order to reduce air resistance, need to prolong the distance (perhaps expanding the outshot of anechoic room) between anechoic room bottom surface and the channel body.But, should be noted that scavenge duct places between outside vehicle and the inside.Therefore, the space of placement scavenge duct is limited in the limited area.As a result, be difficult in some vehicle, prolong this distance.
[0010]
Therefore, traditional scavenge duct is difficult to reduce to enter the indoor noise transmission of automotive occupant.
Summary of the invention
[0011]
The present invention proposes considering under the above-mentioned situation.Therefore, an object of the present invention is to provide a kind of vehicle scavenge duct, the sound of scavenge duct energy rejection band in wide range, and can make the indoor air of automotive occupant not have to flow to the outside under the condition of disturbing, noise almost can not be from external communication to the automotive occupant chamber, and can reduce size.
[0012]
The vehicle according to the invention scavenge duct can address the above problem, and is used for the air that automotive occupant is indoor and flows to outside vehicle, and scavenge duct comprises:
Channel body, described channel body place in the car body (vehicle hull, vehicle gabarit), and comprise the framework that has out to the vent window of outside vehicle, and can the switching mode to hide the shutter member of vent window;
Connected component, described connected component is integrally formed in channel body or independent with it formation, connected component places the automotive occupant chamber side of channel body, communicate with the vent window of channel body, and communicate, thereby make vehicle interior and air outside through its outflow and inflow with the automotive occupant chamber interior;
Anechoic room;
With seeing through mouthful that connected component is communicated with anechoic room; And
Seal the air-permeable member that sees through mouth ventilatively.
[0013]
Particularly, scavenge duct of the present invention comprises air-permeable member and anechoic room.Air-permeable member is between connected component and the anechoic room.Connected component is communicated with the automotive occupant chamber interior with outside vehicle.From the noise of outside vehicle by connected component, enter anechoic room through air-permeable member.When noise enters air-permeable member, the air vibration in air-permeable member.Then, the astringency of air (viscosity) converts noise energy to heat energy.Therefore, noise energy reduces.Through the noise transmission of air-permeable member air layer, with the wall surface collision that forms anechoic room and on wall surface, reflect through anechoic room.This propagation and reflection further reduce the energy of noise.And the noise of reflection turns back to the connected component through air-permeable member from anechoic room.In this case, air-permeable member absorbs the energy of reflection noise once more.In addition, the further noise attenuation energy of phase difference of reflection noise and incident noise.Particularly, when reflection noise when phase place is opposite each other with the incident noise, the decay that has increased energy.Like this, scavenge duct of the present invention can suppress the sound pressure of noise, because noise returns through air-permeable member and advances, propagates in anechoic room, and reflects on the wall surface of anechoic room.And air-permeable member is adjacent with anechoic room, and this compares with resonator 103 independent situations of placing in the independent situation of placing of air-permeable member or the traditional as shown in figure 11 scavenge duct, can the sound of rejection band in wide range.
[0014]
In addition, do not need a plurality of anechoic rooms are set, because scavenge duct of the present invention can be with the noise of single anechoic room rejection band in wide range.Therefore, the size of scavenge duct of the present invention can reduce.And the anechoic room placement location is than the more close inside of shutter member.In addition, see through mouth and hiding air-permeable member.Therefore, the foreign matter such as raindrop, dust and dirt almost can not enter anechoic room.Therefore, scavenge duct of the present invention shows higher functional reliability.
[0015]
Scavenge duct of the present invention preferably is set, makes it may further include cover body, described cover body places the automotive occupant chamber side of channel body, with the separate formation of channel body, and has connected component, anechoic room and sees through mouth and air-permeable member.Use this structure, compare, not only make connected component easily, and make whole vent window of the present invention easily with the situation that channel body and connected component are integrally formed in.
[0016]
Preferably, described cover body can comprise relative wall, and described relative wall is towards the vent window of channel body, and has the recess that forms anechoic room; And air-permeable member can be set to hide the recess of this cover body.In design-calculated scavenge duct of the present invention like this, air-permeable member is set to the vent window towards the noise process.Therefore, can make most of noise not enter the automotive occupant chamber, but enter anechoic room.Therefore, the scavenge duct of the present invention noise suppression effect that can be enhanced.
Preferably, described see through mouthful opened on a wall of cover body, and occupy the gross area that is formed with the wall that sees through mouthful 50% or more.See through open area preferably account for the described wall gross area 50% or more because less than 50% to see through open area too little, the possibility that noise enters anechoic room is little.Notice that it is big more to see through open area here, noise might enter anechoic room more.
[0018]
Preferably, described connected component can comprise connected entrance, and described connected entrance is communicated with the vent window of channel body with the automotive occupant chamber interior, and forms slotted opening, this connected entrance has the opening border and is positioned at the air exhaust louver on opening border, and described air exhaust louver hides connected entrance ventilatively.Use this structure, by connected entrance and attempt to enter the collision of the indoor noise of automotive occupant and air exhaust louver.Therefore, noise energy decay.Thus, the scavenge duct of the present invention noise suppression effect that can be strengthened more.
[0019]
Also can address the above problem according to another aspect of the present invention.Scavenge duct according to a further aspect of the present invention is used for vehicle, is used to make the indoor air of automotive occupant to flow to outside vehicle, and comprises:
Channel body, described channel body places car body, and comprises the framework that has out to the vent window of outside vehicle, and can the switching mode to hide the shutter member of vent window;
Cover body, described cover body are integrally formed in channel body or independent with it formation, and comprise connected component and relative wall,
Described connected component places the automotive occupant chamber side of channel body, and communicate with the vent window of channel body, and communicate with the automotive occupant chamber interior,
Described relative wall is towards the vent window of channel body, and comprise connected entrance, described connected entrance is communicated with the vent window of channel body with the automotive occupant chamber interior, and form slotted opening, this connected entrance has the opening border and is positioned at the air exhaust louver on opening border, described air exhaust louver hides connected entrance ventilatively
Thereby make vehicle interior and air outside pass its turnover.
[0020]
Particularly, scavenge duct of the present invention comprises the cover body that places independently in the channel body.Described cover body comprises relative wall, and is formed in the relative wall and hides the connected entrance that air exhaust louver is arranged.The noise that outside vehicle produces as road noise and tread contour noise, is invaded scavenge duct of the present invention through the vent window of channel body.The noise by vent window directly collides with relative wall, and wherein wall is arranged to the frontage and airiness mouth relatively.And noise also collides with the air exhaust louver that places relative wall connected entrance.In this case, collision makes noise turn back to the channel body once more from the connected component of cover body.Therefore, noise collides repeatedly with the wall surface that forms connected component.The noise of correspondingly having decayed.
[0021]
And by the air outlet passage of vehicle, the indoor air of automotive occupant flows into scavenge duct of the present invention by connected entrance, and wherein connected entrance is arranged in the relative wall of cover body.Particularly, from towards the connected entrance of channel body by and flow into the air of scavenge duct of the present invention, the resistance that is not subjected to channel body just flows through channel body.Like this, scavenge duct of the present invention guarantees that the air of q.s is discharged to outside vehicle.
[0022]
Connected entrance can be opened at least partly on the relative wall that forms connected component.Here, but the connected entrance opening is this degree: the air of aequum is flow through.But not getting rid of simultaneously, this can on the whole surface of relative wall, not form connected entrance.
[0023]
Preferably, relatively the connected entrance of wall can be at such position opening: away from riding in the head that the occupant in the scavenge duct vehicle of the present invention is housed.When connected entrance is opened in this position, can prolong vent window and experience distance between the occupant ear of noise, wherein vent window becomes the sound pollution source that rides in the occupant in the vehicle that scavenge duct of the present invention is housed.That is, propagating the noise that comes from vent window was attenuated before arriving occupant ear.Therefore, can reduce the noise level that the occupant experiences.Distance between connected entrance and the occupant can not be determined clearly, because this depends on that scavenge duct of the present invention is with the vehicle of installing.But notice that the distance between connected entrance and the occupant is big more, the noise that the occupant may experience is more little.
[0024]
Note, passed the noise of channel body and air exhaust louver surface collision towards channel body.Therefore, preferably, form towards the air exhaust louver surface of channel body by crooked form, thereby make noise and the air exhaust louver surface collision that passes channel body, in the reflected back channel body.
So preferably, the middle bent in the cross section that the air exhaust louver of connected entrance vertically intercepts on the relative length direction is the protrusion shape.
[0026]
And preferably, cover body can also comprise the sidewall that is formed with air passage port.When cover body also has the sidewall of the air passage port of being provided with, just can reduce the openings of sizes of connected entrance, because extra air can be sent into scavenge duct of the present invention by air passage port.
[0027]
In addition, preferably, scavenge duct of the present invention also comprises the sound-absorbing spare that is arranged on the connected component inner peripheral surface.Connected component inner peripheral surface with sound-absorbing spare is absorbed in the sound of propagating in the connected component, thereby can reduce to propagate into the noise in the automotive occupant chamber.And, can stop connected component itself and the acoustic resonance of propagating to produce extra noise.
[0028]
For the material of making scavenge duct of the present invention,, unrestricted fully as long as can make above-mentioned structure.That is, make scavenge duct of the present invention and can use the used material of manufacturing conventional truck scavenge duct.For example, can use resin and metal manufacturing scavenge duct of the present invention.
[0029]
According to the present invention, a kind of vehicle scavenge duct can be provided, the sound of its energy rejection band in wide range can reduce size, and its functional reliability height.In addition, according to another aspect of the present invention, a kind of vehicle scavenge duct can be provided, it can make the indoor air of automotive occupant flow out under free condition, and the air exhaust louver place reflection noise by in connected entrance, being provided with, make noise almost can not propagate into the automotive occupant chamber from outside vehicle.
Description of drawings
[0030]
When in conjunction with the accompanying drawings and when describe in detail considering, by the reference following detailed, can understand the present invention better, will obtain more thorough evaluation of the present invention easily and understand lot of advantages of the present invention.All these constitutes part disclosed herein.
[0031]
Fig. 1 is the decomposition diagram according to the vehicle scavenge duct of first embodiment of the invention.
Fig. 2 is the cutaway view according to the vehicle scavenge duct of first embodiment.
[0033]
Fig. 3 is the cutaway view according to the vehicle scavenge duct of second embodiment of the invention.
[0034]
Fig. 4 is the transparent view according to the vehicle scavenge duct of third embodiment of the invention.
[0035]
Fig. 5 is according to the vehicle scavenge duct of the 3rd embodiment cutaway view along long and short dash line among Fig. 4 " 5 "-" 5 " intercepting.
[0036]
Fig. 6 is the transparent view according to the channel body of the vehicle scavenge duct of the 3rd embodiment.
[0037]
Fig. 7 is the transparent view according to the cover body of the vehicle scavenge duct of the 3rd embodiment.
[0038]
Fig. 8 is the transparent view according to the vehicle scavenge duct of fourth embodiment of the invention.
[0039]
Fig. 9 is according to the vehicle scavenge duct of the 4th embodiment cutaway view along long and short dash line among Fig. 8 " 9 "-" 9 " intercepting.
[0040]
Figure 10 is the local amplification view of the scavenge duct of the improvement project according to the present invention.
[0041]
Figure 11 is the cutaway view of conventional truck scavenge duct.
The specific embodiment
[0042]
Described the present invention above prevailingly, by obtaining further understanding with reference to concrete preferred embodiment given here, these embodiment are only used for purpose for example, do not limit the scope of claims.Below, with reference to vehicle scavenge duct concrete form of the present invention, present invention is described.
Embodiment
(embodiment 1)
[0043]
To describe structure at first, below in detail according to the vehicle scavenge duct of first embodiment of the invention.Fig. 1 represents the decomposition diagram of this scavenge duct.Fig. 2 represents the cutaway view of this scavenge duct.As shown in the figure, scavenge duct 1 comprises channel body 2, and cover body 3.
[0044]
[0045]
[0046]
[0047]
Air-permeable member 31 is made by continuous foamed sponge, and makes the rectangular flat shape.Air-permeable member 31 hides to the inside with respect to outside vehicle (not shown) and sees through mouth 302.Air-permeable member 31 and recess 301 surround and form anechoic room 303.In addition, air-permeable member 31 is adjacent with communication chamber 304 with respect to the outside of automotive occupant chamber.That is, both separate air-permeable member 31 with this between communication chamber 304 and anechoic room 303.As shown in Figure 1, rectangle air passage port 307 is opened in the sidewall of cover body body 30, and wherein the cover body body forms communication chamber 304.Communication chamber 304 communicates with the automotive occupant chamber interior by air passage port 307.Notice that cover body body 30 formed communication chamber 304, air passage port 307 and wall constitute connected component of the present invention.
[0048]
The following describes operation according to the scavenge duct 1 of first embodiment.For example, when opening or closing car door, inrush of air automotive occupant chamber, the air that equates with the inflow volume of air flows into communication chamber 304 by air passage port 307.Leaked-in air promotes sheet shutter member 21a, 21b and opens.Promoted the air that sheet shutter member 21a, 21b open and flow to outside vehicle through vent window 201a, 201b.
[0049]
As falp value parts 201a, when 201b opens, the noise such as road noise, tread contour noise and brake noise passes to communication chamber 304 by vent window 201a, 201b from outside vehicle.Noise directly or at the wall by the cover body body 3 of separating communication chamber 304 enters anechoic room 303 after reflection indirectly through air-permeable member 31, shown in Fig. 2 empty arrow.The noise of incident sees through the air layer of anechoic room 303, reflects on the wall that forms anechoic room 303, and enters communication chamber 304 once more through air-permeable member 31.The noise that enters communication chamber 304 once more enters the automotive occupant chamber through air passage port 307.In addition, noise is dispersed into outside vehicle by vent window 201a, 201b.
[0050]
Then, the advantage that the scavenge duct 1 according to first embodiment reaches will be described below.In scavenge duct 1, enter anechoic room 303 through communication chamber 304 via air-permeable member 31 from the noise of outside vehicle.Air-permeable member 31 absorbs the energy of incident noise.The noise that has passed through air-permeable member 31 passes to the air layer of anechoic room 303, and with the wall collision that forms anechoic room 303 and in this place's reflection.Propagation and reflection repeat, thus the energy of noise attenuation.And the noise of reflection turns back to the communication chamber 304 from anechoic room 303 via air-permeable member 31.In this case, air-permeable member 31 absorbs the energy of reflection noise once more.In addition, the energy of the phase difference noise attenuation of reflection noise and incident noise.Like this, because noise passes air-permeable member 31, propagate in anechoic room 303 and reflect on anechoic room 303 walls, scavenge duct 1 can suppress the noise of wide range frequency band.
[0051]
In addition, in scavenge duct 1, see through mouth 302 and be arranged on the relative wall 300 of broad according to first embodiment.Therefore, can provide bigger area for seeing through mouth 302.In addition, account for the 50-60% of relative wall through the aperture area of mouth 302.Therefore, can make major part enter the noise of communication chamber 304, not enter the automotive occupant chamber, but enter anechoic room 303.
[0052]
In addition, the scavenge duct 1 according to first embodiment can use mono-anechoic room 303 to suppress the noise of relative broad range frequency band.Therefore, do not need to be provided with a plurality of anechoic rooms 303.Therefore can further reduce the size of scavenge duct 1.Notice that anechoic room 303 is arranged on the position than falp value parts 21a, the more close vehicle interior side of 21b.In addition, air-permeable member 31 hides and sees through mouth 302.As a result, the foreign matter such as raindrop, dust and dirt almost can not enter anechoic room 303.Therefore, scavenge duct 1 shows higher functional reliability.
[0053]
In addition, in the scavenge duct 1 according to first embodiment, air-permeable member 31 is placed as vent window 201a, the 201b that passes towards noise.Consider this structure, can make the noise that enters communication chamber 304 in a large number, do not enter the automotive occupant chamber, but enter anechoic room 303.Like this, scavenge duct 1 produces the noise suppression effect of improving.
(embodiment 2)
[0054]
Be according to the scavenge duct of second embodiment of the invention and difference according to the scavenge duct 1 of first embodiment of the invention: the scavenge duct of second embodiment comprises the connected entrance that forms slotted opening, and the air exhaust louver that places this connected entrance.Therefore, hereinafter only these differences are described.
[0055]
Fig. 3 represents the cutaway view according to the vehicle scavenge duct 1 of second embodiment of the invention.In Fig. 3, similar part is represented with identical drawing reference numeral among attention and Fig. 1 and Fig. 2.As shown in the figure, connected entrance 305 is opened the bottom at relative wall 300.Connected entrance 305 forms the slotted opening that (or on direction of the vertical paper in edge) extends on relative wall 300 horizontal directions.That is, connected entrance 305 on relative wall 300/below the slotted opening of two adjacent apertures bands upwards forming.In addition, in automotive occupant chamber one side, the edge on each open band of reclinate air exhaust louver 306 and connected entrance 305 is whole to be formed.
[0056]
Can realize advantage in the mode identical according to the scavenge duct 1 of second embodiment with the first embodiment scavenge duct 1.In addition, in scavenge duct 1, pass noise and air exhaust louver 306 collisions that connected entrance 305 enters the automotive occupant chamber according to second embodiment.This collides the energy of further noise attenuation.Therefore, the scavenge duct 1 according to second embodiment has produced the noise suppression effect of more improving.
(alternate embodiment)
[0057]
The mode of several embodiments of the present invention described above.But the mode of the embodiment of the invention is not confined to first embodiment and second embodiment especially.One of ordinary skill in the art can be implemented scavenge duct of the present invention with various alternate embodiment modes or improved by way of example.
[0058]
For example, in the above-described embodiments, recess 301 is arranged on the relative wall 300.But recess 301 can be arranged on roof, diapire or the sidewall of cover body body 30.And in the above-described embodiments, the setting of recess 301 is to be used to form anechoic room 303.But, can become the Double bottom structure and form anechoic room 303 by cutting apart identical cup-shaped cover body body 30 inside with air-permeable member 31 simply, and recess 301 is not set.With this structure, the vibration of thin membrane effect that can utilize the vibration of air-permeable member 31 self to produce absorbs noise energy.
[0059]
In addition, in the above-described embodiments, place the air-permeable member of making by continuous foamed sponge 31 and hide through mouth 302.But the material of making air-permeable member 31 does not have particular restriction.For example, can use various nonwoven fabrics, woven cloth and perforated board to make air-permeable member 31.
(embodiment 3)
[0060]
To describe structure at first, below in detail according to the vehicle scavenge duct of third embodiment of the invention.Fig. 4 represents the transparent view of this scavenge duct.Fig. 5 represents the cutaway view of this scavenge duct along long and short dash line among Fig. 4 " 5 "-" 5 " intercepting.Fig. 6 represents from rear side (or at outside vehicle), the transparent view of the channel body of scavenge duct.Fig. 7 represents the transparent view of scavenge duct cover body.As shown in the figure, scavenge duct 1 comprises channel body 2 and cover body 3.In addition, forming the channel body 2 of scavenge duct 1 and cover body 3 is made by polypropylene.
[0061]
[0062]
[0063]
The box-like that cover body 3 forms to channel body 2 openings.Cover body 3 is fixed on automotive occupant chamber one side of channel body 2 thus in edge of opening and channel body 2 welding.In cover body 3, connected entrance 305 is opened in relative wall 300 bottoms, and this bottom surfaces is to following vent window 201b, as shown in Figure 5.Connected entrance 305 forms the slotted opening that extends in (or on direction of the paper that cutaway view Fig. 5 vertically is shown thereon) on relative wall 300 horizontal directions.Be set on the relative wall 300/air exhaust louver 306,306 in two phase adjacent bands that the below makes progress, be integrally formed in together with relative wall 300.In addition, as shown in Figure 4, rectangle air passage port 307 is opened on the sidewall of cover body 3, and the sidewall of cover body 3 forms communication chamber 304.Communication chamber 304 communicates with the automotive occupant chamber interior by connected entrance 305 and air passage port 307.Notice that communication chamber 304, connected entrance 305, air passage port 307 and wall that cover body 3 forms constitute the connected component of saying here.
[0064]
Air exhaust louver 306,306 constitutes band shape, this band shape with falp value parts 21a, the 21b direction perpendicular in abutting connection with direction on (or on direction of the vertical paper that cutaway view Fig. 5 is shown thereon) extension.In the cross-sectional plane that intercepts on perpendicular to said band shape bearing of trend, air exhaust louver 306,306 be arc, is protruding in the bent intermediate of the Width of this band shape.And air exhaust louver 306,306 is provided with in the inclination mode with respect to relative wall 300.Particularly, air exhaust louver 306,306 has terminal relatively on band shape Width.One relatively end be positioned at downside, outwards outstanding from the outside face 300a of relative wall 300, another relatively end be positioned at upside, inwardly be projected into the communication chamber 304 from the inside face 300b of relative wall 300.
[0065]
Form the space with air exhaust louver 306,306 at the wall surface that forms connected entrance 305 between a relative end on the band shape Width, a relative terminal surface is to the wall surface that forms connected entrance 305.Air exhaust louver 306,306 is terminal relatively band shape Width, and terminal relatively towards the wall surface that forms connected entrance 305 can be positioned at above or below the wall surface that forms connected entrance 305 or concordant with it.Notice that end is preferably located in the wall surface below relatively.And air exhaust louver 306,306 is set to the end relatively of band shape Width not to be positioned on the adjacent direction of air exhaust louver 306,306 concordant each other, and will terminally relatively locate by Z-shaped mode on the adjacent direction of air exhaust louver 306,306.In addition, it is outstanding that the setting of air exhaust louver 306,306 makes the terminal relatively outside face 300a from relative wall 300 of downside of band shape Width.
[0066]
The following describes operation according to the scavenge duct 1 of the 3rd embodiment.
When the indoor air of automotive occupant flowed out, air flowed into communication chamber 304 by air passage port 307 and connected entrance 305.Through the air of air passage port 307 inflow communication chamber 304, mobile along the direction of parallel relative wall 300.Then, air-flow is in communication chamber 304 internal reflections, thus air flow channel body 2.
[0068]
In addition, the indoor air of automotive occupant also flows into communication chamber 304 by connected entrance 305.Notice that connected entrance 305 is towards channel body 2 openings.As a result, flow into the air of communication chamber 304 through connected entrance 305, undisturbed and flow to channel body 2 in communication chamber 304.
[0069]
[0070]
The air that has flowed into communication chamber 304 flows towards channel body 2, and promotion sheet shutter member 21a, 21b open to outside vehicle.Finally, air flows to outside vehicle by vent window 201a, 201b.
[0071]
When falp value parts 21a, 21b are pushed when outside vehicle is opened, shown in the dotted line of Fig. 5, perhaps when falp value parts 21a was pulled to state shown in Figure 6, noise entered the automotive occupant chamber through vent window 201a, 201b.Noise process channel body 2, and in communication chamber 304, directly collide with the inside face 300b of relative wall 300 and the upper surface 306a of air exhaust louver 306,306.Noise diffuser reflection in communication chamber 304 through collision like this.Therefore noise is attenuated and dies down.Particularly, the scavenge duct 1 according to the 3rd embodiment comprises crooked cross section air exhaust louver 306,306.Therefore, the noise with air exhaust louver 306,306 collisions is reflected to communication chamber 304 inside.And the noise that enters scavenge duct 1 through vent window 201a, 201b is in the reflection of air exhaust louver 306,306 places of frontage and airiness mouth 201a, 201b.Therefore, noise almost can not enter the automotive occupant chamber.As a result, noise almost can not directly arrive the indoor occupant of automotive occupant.
[0072]
And in the scavenge duct 1 according to the 3rd embodiment, the aperture area of connected entrance 305 reduces, because connected entrance 305 is formed on the bottom of relative wall 300 partly.
(embodiment 4)
[0073]
Fig. 8 and 9 expressions are according to the structure of the vehicle scavenge duct 1 of fourth embodiment of the invention.Fig. 8 represents the transparent view of scavenge duct 1.Fig. 9 represents the cutaway view of scavenge duct 1 along long and short dash line " 9 " one " 9 " intercepting of Fig. 8.Notice that its advantage be operated and be realized to the component part of scavenge duct 1 can in the mode identical with the scavenge duct 1 of the 3rd embodiment, and this component part is not done special description hereinafter.
[0074]
[0075]
Can the mode identical according to the scavenge duct 1 of embodiment 3 with the scavenge duct 1 of the 3rd embodiment, make air flow to outside vehicle, and do not disturb from the automotive occupant chamber interior.And scavenge duct 1 can be at the noise of the air exhaust louver 306 places reflection that places connected entrance 305 from outside vehicle.Therefore, scavenge duct 1 can stop noise to enter the automotive occupant chamber.
(variation scheme)
The following describes other several by way of example of scavenge duct of the present invention.But by way of example is not confined to embodiment 3 and 4 particularly.Can or improve in various change by way of example and realize scavenge duct of the present invention in the by way of example, and this to be persons skilled in the art can realize.
[0077]
According to the scavenge duct 1 of third and fourth embodiment, preferably further comprise sound-absorbing spare, sound-absorbing spare is contained on the inside face of a formation communication chamber 304.For example, as shown in figure 10, sound-absorbing spare 4 can be placed on the inside face 300b of relative wall 300 of cover body 3, and this inside face is towards channel body 2.The material type of making sound-absorbing spare does not have particular restriction.For example, can use nonwoven fabrics, polyvinylchloride (PVC) foam and polyurethane (PUR) foam to make sound-absorbing spare such as felt.Notice that felt and PVC foam have high sound-absorbing effect to the noise in the high-frequency range, and the PUR foam there is high sound-absorbing effect to the noise in the low-frequency range.Therefore, can implement scavenge duct of the present invention as follows, promptly felt and/or PVC foam combine with the PUR foam.Notice that felt comprises the structure of fiber fines intricately mat, and for the area of contact of broad is provided between fiber and the air.Therefore, felt can easily convert acoustic energy to heat energy.That is, felt is outstanding aspect sound absorption qualities.In addition, felt is quite cheap.
[0078]
In the scavenge duct 1 according to the 3rd embodiment and the 4th embodiment, air passage port 307 is formed on two sidewalls in 3 four walls of cover body.But, can on cover body 3 all four walls, form air passage port 307, i.e. two sidewalls, roof and diapires.
[0079]
In the scavenge duct 1 according to the 3rd embodiment and the 4th embodiment, the mode that channel body 2 and cover body 3 are fixed is not particularly limited.For example, the fixing means that tradition is used below can using is as fixed form: bail assembling, wherein channel body 2 and cover body 3 related parts that has bail respectively and insert this bail; Also can adopt clamp, pin and welding manner.
[0080]
And, scavenge duct is had according to the feature of the scavenge duct 1 of second embodiment and according to the feature of the scavenge duct 1 of third and fourth embodiment.Particularly, also can comprise out air passage port on a sidewall of cover body body 30 according to the scavenge duct 1 of second embodiment.Scavenge duct with this structure obtains simultaneously: by the advantage that realizes according to the second embodiment scavenge duct 1, the effect of the noise of rejection band in suitable wide region, and, reduce the effect of noise when guaranteeing enough aeration volumes by the advantage that realizes according to the third and fourth embodiment scavenge duct 1.
[0081]
It should be understood by those skilled in the art that the preferred specific embodiment that the present invention has been described can carry out various improvement and variation, and do not depart from the spirit or scope of the present invention.Therefore, present invention resides in claims and be equal to various improvement and variation within the replacement scope.
Claims (11)
1. vehicle scavenge duct, described scavenge duct is used for the air that automotive occupant is indoor and is discarded to described outside vehicle, and comprises:
Channel body, described channel body places car body, and comprises that one has the framework of the vent window of opening to outside vehicle and can the switching mode to hide the shutter member of described vent window;
Connected component, described connected component and described channel body are whole to be formed or forms separately, place the automotive occupant chamber side of described channel body, communicate with the described vent window of described channel body, and communicate, thereby the inside and outside air of vehicle is come in and gone out via described connected component with described automotive occupant chamber interior;
Anechoic room forms described anechoic room on the wall of described connected component;
See through mouth, described connected component is communicated with described anechoic room; And
Air-permeable member is sealed the described mouth that sees through in ventilative mode.
2. scavenge duct according to claim 1, also comprise cover body, described cover body is arranged in the automotive occupant chamber side of described channel body, and its formation is independent of described channel body, and is provided with described connected component, described anechoic room and described mouth and the described air-permeable member of seeing through.
3. scavenge duct according to claim 2, wherein:
Described cover body comprises relative wall, and described relative wall is towards the vent window of described channel body, and has the recess that forms described anechoic room; And
Described air-permeable member is set to hide the described recess of described cover body.
4. scavenge duct according to claim 2, wherein said see through mouthful opened on a wall of described cover body, and account for the gross area that is formed with the described described wall that sees through mouthful 50% or more.
5. scavenge duct according to claim 1, wherein said connected component comprises connected entrance, described connected entrance is communicated with the vent window of described channel body with described automotive occupant chamber interior, and form slotted opening, described connected entrance has the air exhaust louver at the edge that is formed at described opening, and described air exhaust louver hides described connected entrance ventilatively.
6. scavenge duct according to claim 1 also comprises the sound-absorbing spare that is arranged on described connected component one inside face.
7. vehicle scavenge duct, described scavenge duct is used for the air that automotive occupant is indoor and is discarded to outside vehicle, and comprises:
Channel body, described channel body places car body, and comprises framework with vent window of opening to outside vehicle and can the switching mode to hide the shutter member of described vent window;
Cover body, described cover body and described channel body are whole to be constituted or constitutes separately, and comprises connected component and relative wall,
Described connected component places automotive occupant chamber one side of described channel body, and communicate with the vent window of described channel body, and communicate with described automotive occupant chamber interior,
Described relative wall is towards the vent window of described channel body, and comprise the connected entrance that is arranged in whole described relative wall substantially, described connected entrance is communicated with the vent window of described channel body with the automotive occupant chamber interior, and form slotted opening, described connected entrance has the opening border and is positioned at the air exhaust louver on opening border, described air exhaust louver hides described connected entrance ventilatively
Thereby make vehicle interior and air outside via its outflow and inflow.
8. scavenge duct according to claim 7, the described connected entrance of wherein said relative wall is opened on away from the position that rides in occupant's head in the vehicle that described scavenge duct is housed.
9. scavenge duct according to claim 7, the described air exhaust louver of wherein said connected entrance, the middle bent in the cross section of the vertical intercepting of relative length direction is the protrusion shape.
10. scavenge duct according to claim 7, wherein said cover body also comprises the sidewall that is formed with air passage port.
11. scavenge duct according to claim 7 also comprises the sound-absorbing spare that is arranged on described connected component one inside face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100073446A CN100431863C (en) | 2005-02-06 | 2005-02-06 | Vehicle scavenge duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100073446A CN100431863C (en) | 2005-02-06 | 2005-02-06 | Vehicle scavenge duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1814471A CN1814471A (en) | 2006-08-09 |
| CN100431863C true CN100431863C (en) | 2008-11-12 |
Family
ID=36906875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100073446A Expired - Fee Related CN100431863C (en) | 2005-02-06 | 2005-02-06 | Vehicle scavenge duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100431863C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584433B (en) * | 2015-06-16 | 2017-06-06 | 徐工集团工程机械股份有限公司 | Noise reduction aeration structure and its supply vehicle |
| CN105059091B (en) * | 2015-07-24 | 2017-06-30 | 重庆长安汽车股份有限公司 | A kind of in-car air-pressure balancing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198132Y (en) * | 1994-07-02 | 1995-05-24 | 姜燕庄 | Vehicle ventilation device |
| CN2259314Y (en) * | 1996-04-03 | 1997-08-13 | 南宁八菱汽车配件有限公司 | Independent air-feeding device for air conditioner of vehicle |
| JP2002172927A (en) * | 2000-09-29 | 2002-06-18 | Toyoda Gosei Co Ltd | Vent duct for vehicle |
| JP2003267040A (en) * | 2002-03-13 | 2003-09-25 | Toyoda Gosei Co Ltd | Vehicular ventilator |
| US6648749B2 (en) * | 2001-07-19 | 2003-11-18 | Toyoda Gosei Co., Ltd. | Quarter vent duct |
-
2005
- 2005-02-06 CN CNB2005100073446A patent/CN100431863C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198132Y (en) * | 1994-07-02 | 1995-05-24 | 姜燕庄 | Vehicle ventilation device |
| CN2259314Y (en) * | 1996-04-03 | 1997-08-13 | 南宁八菱汽车配件有限公司 | Independent air-feeding device for air conditioner of vehicle |
| JP2002172927A (en) * | 2000-09-29 | 2002-06-18 | Toyoda Gosei Co Ltd | Vent duct for vehicle |
| US6648749B2 (en) * | 2001-07-19 | 2003-11-18 | Toyoda Gosei Co., Ltd. | Quarter vent duct |
| JP2003267040A (en) * | 2002-03-13 | 2003-09-25 | Toyoda Gosei Co Ltd | Vehicular ventilator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1814471A (en) | 2006-08-09 |
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Granted publication date: 20081112 Termination date: 20110206 |