JPH085849Y2 - Vehicle ventilation system - Google Patents
Vehicle ventilation systemInfo
- Publication number
- JPH085849Y2 JPH085849Y2 JP1989152663U JP15266389U JPH085849Y2 JP H085849 Y2 JPH085849 Y2 JP H085849Y2 JP 1989152663 U JP1989152663 U JP 1989152663U JP 15266389 U JP15266389 U JP 15266389U JP H085849 Y2 JPH085849 Y2 JP H085849Y2
- Authority
- JP
- Japan
- Prior art keywords
- duct
- vehicle
- space
- ventilation
- noise
- 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.)
- Expired - Lifetime
Links
- 238000009423 ventilation Methods 0.000 title claims description 35
- 230000000694 effects Effects 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Air-Conditioning For Vehicles (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は車室の内外を換気する換気装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a ventilation device for ventilating the inside and outside of a vehicle compartment.
［従来技術］ この種の換気装置として、第７図に示すように、車両
の外板１と、これと空間Ｃをおいて対向する室壁２に、
それぞれ換気口３、４を設け、これ等換気口３、４をダ
クト５にて一連に連通せしめたものがある。[Prior Art] As a ventilation device of this type, as shown in FIG. 7, an outer plate 1 of a vehicle and a chamber wall 2 facing the outer plate 1 with a space C therebetween are provided.
There is one in which ventilation ports 3 and 4 are provided, and these ventilation ports 3 and 4 are connected in series by a duct 5.
なお、図において６はフロアパネル、７はバンパであ
る。In the figure, 6 is a floor panel and 7 is a bumper.
しかし、従来の換気装置では、車外騒音がダクト５を
通って車室内に侵入するという問題がある。However, the conventional ventilation device has a problem that the noise outside the vehicle enters the vehicle interior through the duct 5.
そこで、消音対策として、ダクト内に吸音用のウレタ
ン材料を貼付けたり、あるいはダクトの長さを延長する
手段がとられてい。Therefore, as a sound deadening measure, a urethane material for sound absorption is attached to the inside of the duct, or means for extending the length of the duct is taken.
しかしながら、前者の手段ではウレタン材料を別に準
備するとともにこれをダクトに貼付けなければならず、
コストおよび工数の増加をきたす。また後者の手段で
は、外板と室壁との間の空間の幅には限度があるので、
ダクトを長くするためには、ダクトを複雑な形状に屈曲
させなければならない。しかし、このような手段では、
コストおよび工数が増し、あるいはダクトを長くした割
には消音効果が必ずしも充分でないというのが実情であ
る。However, in the former method, a urethane material must be separately prepared and attached to the duct,
Increases costs and man-hours. Also, in the latter means, the width of the space between the outer plate and the chamber wall is limited,
In order to make the duct long, the duct must be bent into a complicated shape. However, by such means,
The fact is that the sound deadening effect is not always sufficient despite the increased cost and man-hours or the lengthened duct.
［本考案が解決しようとする課題］ 本考案は従来の換気装置に別部材を付加することな
く、かつダクトを延長することなく有効に消音がなされ
る車両の換気装置を提供することを目的とする。[Problems to be Solved by the Present Invention] An object of the present invention is to provide a ventilation device for a vehicle that can effectively muffle sound without adding another member to the conventional ventilation device and without extending the duct. To do.
［課題を解決するための手段］ 本考案は第２図，第４図ないし第６図に例示するよう
に、車両の外板１およびこれと空間Ｃをおいて対向する
室壁２とにそれぞれ換気口３、４を設け、換気口３には
Ｌ字状に屈曲する第１のダクト5Aの一端を接続するとと
もに、換気口４には第１のダクト5Aとは別体のＬ字状に
屈曲する第２のダクト5Bの一端を接続して両ダクト5A,5
Bの他端51A,51Bを上記空間Ｃ内に配し、かつ上記ダクト
5A,5Bのうちの一方（図例では5A）の他端51Aの端面を、
他方のダクト5Bの他端51Bの延長方向に関して、他方の
ダクト5Bの他端51Bの端面よりも後方に位置せしめたこ
とを特徴とする。[Means for Solving the Problems] As shown in FIGS. 2 and 4 to 6, the present invention includes an outer plate 1 of a vehicle and a chamber wall 2 facing the outer plate 1 with a space C therebetween. Ventilation ports 3 and 4 are provided, and one end of a first duct 5A that bends in an L shape is connected to the ventilation port 3, and the ventilation port 4 is formed in an L shape that is separate from the first duct 5A. Connect one end of the bent second duct 5B to both ducts 5A, 5
The other ends 51A and 51B of B are arranged in the space C, and the duct is
The end surface of the other end 51A of one of 5A and 5B (5A in the illustrated example) is
The other end 51B of the other duct 5B is characterized in that it is positioned behind the end face of the other end 51B of the other duct 5B.
［作用、効果］ 室外側の第１のダクト5Aを通過したエンジン騒音、風
切音等の車外騒音は室内側の第２のダクト5Bに直接に進
入することなく空間Ｃに入る。そして空間Ｃは拡張室と
して作用し、車内騒音を効果的に減少せしめる。[Operations and Effects] Exterior noise such as engine noise and wind noise that has passed through the first outdoor duct 5A enters the space C without directly entering the second indoor duct 5B. And the space C acts as an expansion chamber, and effectively reduces the noise in the vehicle.
［実施例］ 第１図および第２図に示すようにバン型車の後部側面
には換気装置Ｖが設けてある。[Embodiment] As shown in FIGS. 1 and 2, a ventilation device V is provided on the rear side surface of the van type vehicle.
後部外板をなすクオータパネル１の下部には換気口３
が形成してある。同様に後部の室壁をなすクオータトリ
ム２にも上記換気口３よりも上方位置に換気口４が形成
してある。クオータパネル１とクオータトリム２とは空
間Ｃを介して対向している。At the bottom of the quarter panel 1 that forms the rear skin, there is a ventilation port 3
Is formed. Similarly, in the quarter trim 2 forming the rear chamber wall, a ventilation port 4 is formed above the ventilation port 3. The quarter panel 1 and the quarter trim 2 face each other with a space C in between.
上記換気口３には空間Ｃ側に第１のダクト5Aの一端が
接続してある。第１のダクト5Aは、ほぼＬ字形に屈曲し
た形状で空間Ｃの中央部を上方へ起立し、他端開口51A
は上向きとなつている。上記換気口４は第１のダクト5A
の他端開口51Aよりも上方に位置し、これには第２のダ
クト5Bの一端が接続してある。第２のダクト5Bは第１の
ダクト5Aとほぼ同一形状で、その他端開口51Bは上向き
となつている。One end of the first duct 5A is connected to the ventilation port 3 on the side of the space C. The first duct 5A has a substantially L-shaped bent shape and stands upright in the center of the space C, and has the other end opening 51A.
Is pointing up. The ventilation port 4 is the first duct 5A.
Is located above the other end opening 51A, to which one end of the second duct 5B is connected. The second duct 5B has substantially the same shape as the first duct 5A, and the other end opening 51B faces upward.
なお、図において６はフロアパネル、７はバンパであ
る。In the figure, 6 is a floor panel and 7 is a bumper.
上記のように構成した換気装置において、車室内のエ
アは第２のダクト5Bから空間Ｃへ入り、主として車両走
行時に車体まわりに生じる負圧により第１のダクト5Aか
ら車外に吸出されることで、換気がなされる。In the ventilation device configured as described above, the air in the vehicle compartment enters the space C from the second duct 5B and is sucked out of the vehicle from the first duct 5A mainly by the negative pressure generated around the vehicle body when the vehicle travels. , Ventilation is provided.
一方、車外騒音は、第１のダクト5Aの一端が接続され
た換気口３から入り第１のダクト5Aを通ってその他端開
口51Aより空間Ｃに入る。しかるに、第１のダクト5Aの
他端開口51Aと、一端が換気口４に接続された第２のダ
クト5Bの他端開口51Bとは上下に離れており、かつ他端
開口51Aから出る騒音の指向方向と、他方の他端開口51B
への騒音の進入方向とは逆方向であるので、騒音は第２
のダクト5Bへ直接に進入せず、空間Ｃは音の拡張室とし
て有効に作用し、第２のダクト5Bから車室内へ進入する
騒音は大幅に低減される。On the other hand, the noise outside the vehicle enters through the ventilation port 3 to which one end of the first duct 5A is connected and enters the space C through the other end opening 51A through the first duct 5A. However, the other end opening 51A of the first duct 5A and the other end opening 51B of the second duct 5B whose one end is connected to the ventilation port 4 are vertically separated from each other, and noise generated from the other end opening 51A Direction and the other end opening 51B
Since the direction of the noise to the
The space C does not directly enter the duct 5B, but effectively acts as a sound expansion chamber, and the noise that enters the vehicle interior from the second duct 5B is significantly reduced.
第３図は上記実施例の本考案装置と、第７図に示す従
来の換気装置について、車両走行時における室内側の換
気口近傍の音圧レベルを測定した結果を示すものであ
る。Ｄは本考案装置、Ｅは従来装置の結果である。図よ
り知られるように、本考案装置では高周波騒音のみなら
ず低周波騒音についても、従来装置に比べ、車外騒音の
室内への影響が大きく低減される。FIG. 3 shows the result of measuring the sound pressure level in the vicinity of the ventilation port on the indoor side when the vehicle is running, for the device of the present invention of the above embodiment and the conventional ventilation device shown in FIG. D is the result of the device of the present invention and E is the result of the conventional device. As can be seen from the figure, in the device of the present invention, not only high-frequency noise but also low-frequency noise is significantly reduced in the effect of outside vehicle noise on the room, as compared with the conventional device.
第４図ないし第６図はそぞれ本考案の他の実施例の水
平断面を示す概要図である。第４図の実施例では室外側
のダクト5Aと室内側のダクト5Bは空間Ｃ内で互いに前後
位置に開口せしめてある。第５図の実施例ではダクト5A
とダクト5Bは空間Ｃ内で互いに左右位置に開口せしめて
ある。第６図の実施例もダクト5Aとダクト5Bは空間Ｃ内
で互いに左右位置でかつ互いに直交する方向に開口せし
めてある。しかして上記いずれの実施例も、ダクト5A,5
Bのいずれか、例えばダクト5Aの空間Ｃ内にある他端51A
の端面は、他方のダクト5Bの他端51B側を延長する方向
に関して、他方のダクトの他端51Bの端面より後方に位
置せしめてある。これにより、一方のダクト5Aに入って
空間Ｃに出た騒音は、他方のダクト5Bのダクト壁に遮断
され、あるいは他方のダクト5Bへの進入方向とは全く異
る方向に進む。この結果、いずれの実施例も第２図に示
す実施例と同様の消音効果が発揮される。4 to 6 are schematic views showing horizontal cross sections of other embodiments of the present invention. In the embodiment of FIG. 4, the outdoor duct 5A and the indoor duct 5B are opened in the space C at the front and rear positions. In the embodiment shown in FIG. 5, the duct 5A
The duct 5B and the duct 5B are open to the left and right in the space C. Also in the embodiment shown in FIG. 6, the duct 5A and the duct 5B are opened in the space C at right and left positions and in directions orthogonal to each other. Therefore, in any of the above embodiments, the ducts 5A, 5
One of B, for example, the other end 51A in the space C of the duct 5A
Is located rearward of the end surface of the other end 51B of the other duct in the direction of extending the other end 51B side of the other duct 5B. As a result, the noise that enters the one duct 5A and exits into the space C is blocked by the duct wall of the other duct 5B, or proceeds in a direction completely different from the approaching direction to the other duct 5B. As a result, all of the embodiments exhibit the same sound deadening effect as the embodiment shown in FIG.
第１図および第２図は本考案の第１の実施例を示すもの
で、第１図は換気装置を備えた自動車の側面図、第２図
は第１図のII−II線に沿う換気装置の縦断面図、第３図
は本考案および従来の換気装置の騒音テスト結果を示す
図、第４図ないし第６図はそれぞれ本考案の換気装置の
他の実施例の水平断面概要図、第７図は従来の換気装置
の縦断面図である。 Ｖ……換気装置 １……車両外板 ２……室壁 ３、４……換気口 5A……第１のダクト 5B……第２のダクト Ｃ……空間FIGS. 1 and 2 show a first embodiment of the present invention. FIG. 1 is a side view of an automobile equipped with a ventilation device, and FIG. 2 is ventilation along the line II-II in FIG. FIG. 3 is a vertical sectional view of the device, FIG. 3 is a view showing noise test results of the present invention and a conventional ventilation device, and FIGS. 4 to 6 are horizontal sectional schematic views of other embodiments of the ventilation device of the present invention, respectively. FIG. 7 is a vertical sectional view of a conventional ventilation device. V ... Ventilation device 1 ... Vehicle outer plate 2 ... Room wall 3, 4 ... Ventilation port 5A ... First duct 5B ... Second duct C ... Space
Claims (1)
する室壁にそれぞれ換気口を設け、これ等換気口を上記
空間を介して連通せしめた車両の換気装置において、外
板の換気口にＬ字状に屈曲する第１のダクトの一端を接
続するとともに、室壁の換気口に第１のダクトとは別体
でＬ字状に屈曲する第２のダクトの一端を接続して、両
ダクトの他端を上記空間内に配し、かつ上記両ダクトの
うちの一方のダクトの他端端面を、他方のダクトの他端
側の延長方向に関して、他方のダクトの他端端面よりも
後方に位置せしめたことを特徴とする車両の換気装置。1. A ventilating device for a vehicle, comprising: an outer plate of a vehicle; and ventilation holes provided in a chamber wall facing the outer plate with a space therebetween, and the ventilation ports communicate with each other through the space. One end of a first duct that bends in an L shape is connected to the ventilation port of the plate, and one end of a second duct that bends in an L shape that is separate from the first duct is connected to the ventilation port of the chamber wall. Connect the other ends of the two ducts in the space, and connect the other end surface of one of the two ducts to the other of the other duct with respect to the extension direction of the other end of the other duct. A vehicle ventilation system characterized in that it is located rearward of the end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989152663U JPH085849Y2 (en) | 1989-12-30 | 1989-12-30 | Vehicle ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989152663U JPH085849Y2 (en) | 1989-12-30 | 1989-12-30 | Vehicle ventilation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0391805U JPH0391805U (en) | 1991-09-19 |
| JPH085849Y2 true JPH085849Y2 (en) | 1996-02-21 |
Family
ID=31698916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989152663U Expired - Lifetime JPH085849Y2 (en) | 1989-12-30 | 1989-12-30 | Vehicle ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085849Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5741455B2 (en) * | 2012-01-13 | 2015-07-01 | トヨタ自動車株式会社 | Ventilator for vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6322211U (en) * | 1986-07-29 | 1988-02-13 |
-
1989
- 1989-12-30 JP JP1989152663U patent/JPH085849Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0391805U (en) | 1991-09-19 |
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