JP2004050937A - Vehicle air cleaner - Google Patents

Vehicle air cleaner Download PDF

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Publication number
JP2004050937A
JP2004050937A JP2002210025A JP2002210025A JP2004050937A JP 2004050937 A JP2004050937 A JP 2004050937A JP 2002210025 A JP2002210025 A JP 2002210025A JP 2002210025 A JP2002210025 A JP 2002210025A JP 2004050937 A JP2004050937 A JP 2004050937A
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JP
Japan
Prior art keywords
fragrance
valve
storage chamber
air
air passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002210025A
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Japanese (ja)
Inventor
Yukitaka Abe
阿部 行孝
Motomi Mizuno
水野 元美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2002210025A priority Critical patent/JP2004050937A/en
Publication of JP2004050937A publication Critical patent/JP2004050937A/en
Pending legal-status Critical Current

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  • Air-Conditioning For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle air cleaner having the function of completely blocking an aroma. <P>SOLUTION: The vehicle air cleaner comprises a main air passage, an air inlet communicated with the main air passage, and an air outlet, further comprises an aroma accommodation chamber to accommodate the aroma inside, an air inlet communicated with an air outlet of the aroma, and an air outlet communicated with the main air passage downstream of the air inlet of the aroma accommodation chamber, and further comprises a valve accommodation chamber with a valve provided inside thereof. A valve element of the valve is disposed in an expandable manner so as to close the air inlet of the valve accommodation chamber. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は車両用空気清浄器に関する。
【0002】
【従来の技術】
従来、車両運転中の乗員のストレス軽減、覚醒又は緊張緩和などのために、アロマテラピーに代表される芳香剤を車室内に置くことが知られている。ところが、芳香剤の香りを長時間連続的に吸引していると乗員の鼻が慣れてしまい、芳香剤を単に車室内に置くだけでは効果が十分ではないという問題があった。
【0003】
このような問題を解決するため、芳香剤の香りの放出を断続的にすることが提案されていた。その一例として、図4に示すように、車両用空気清浄器内の空気通路10に並列した芳香剤用空気通路20を設け、この芳香剤用空気通路20内に、芳香剤30と、芳香剤用空気通路20に設けた開口に当接して閉鎖しうる弁体を備えた電磁弁40とを設けた車両用空気清浄器において、電磁弁40の開閉を制御する方法がある。
【0004】
ところが、芳香剤用空気通路20に設ける電磁弁40を大きくすることができないので、空気通路20を遮断する力を増大させるには限界があり、その結果、芳香剤の香りを遮断するために閉弁した場合にも、弁体と開口の間には若干の隙間が生じてしまい、この隙間から流出した香りを乗員が長時間吸引することとなり、結局、芳香剤の効果が十分でないという問題点があった。
【0005】
【発明が解決しようとする課題】
上記問題点に鑑み、本発明の目的は、芳香剤の香りを完全に遮断する機能を備えた車両用空気清浄器を提供することである。
【0006】
【課題を解決するための手段】
本発明の請求項1に係る車両用空気清浄器によれば、主空気通路と、主空気通路と連通した空気流入口と、空気流出口とを有し、かつ内部に芳香剤を収納する芳香剤収納室と、芳香剤の空気流出口と連通した空気流入口と、芳香剤収納室の空気流入口よりも下流位置の主空気通路と連通した空気流出口とを有し、かつ弁を内部に備えた弁収納室とを備え、弁の弁体は、弁収納室の空気流入口を閉鎖するように延伸可能に配置されている。これにより、開弁時には、主空気通路の空気を芳香剤収納室及び弁収納室に流入させて、芳香剤の香りを含んだ空気を主空気通路、及び車室内に送り、閉弁時には、芳香剤用空気通路を構成する弁収納室の流入口を遮断し、万が一この流入口から香りを含んだ空気が漏れたとしても弁収納室内に保持することができるので、芳香剤の香りを完全に遮断することができる。
【0007】
また、請求項2に係る車両用空気清浄器によれば、請求項1に係る車両用空気清浄器において、弁収納室の空気流出口における主空気通路の断面積は、芳香剤収納室の空気流入口における主空気通路の断面積よりも小さくなっている。これにより、芳香剤用空気通路の入口と出口の圧力を大きくし、芳香剤用空気通路の空気流量を大きくすることができる。
【0008】
また、請求項3に係る車両用空気清浄器によれば、請求項1又は2に係る車両用空気清浄器において、芳香剤収納室及び弁収納室はそれぞれ二つあり、芳香剤収納室及び弁収納室の一方と、芳香剤収納室及び弁収納室の他方との間に主通路が形成されている。これにより、二つの弁の開閉を制御することにより芳香剤の香りの種類を選択することができる。
【0009】
【発明の実施の形態】
以下、本発明の実施例について添付図面を参照しつつ詳細に説明する。図1は車両用空気清浄器の主空気通路の断面図である。図1において、主空気通路101aはファン(図示せず)及び除塵フィルタ(図示せず)の下流に空気清浄器のケース本体100の内部に形成されている。さらに、主空気通路101aは、その下流においてカセット状の香り発生器110に設けられた空気通路101bに接続され、さらに下流の空気清浄器の空気出口(図示せず)に通じている。
【0010】
次に香り発生器110の構成について詳細に説明する。香り発生器110は、カセット本体111で概ね構成されている。本実施例では、カセット本体111の両側面に、例えば香りのついた多数の多孔質セラミックボールからなる芳香剤119を収納した芳香剤収納室112と、芳香剤収納室112に隣接した弁収納室113がそれぞれ配置され、これら芳香剤収納室112及び弁収納室113の間には、主空気通路101bが形成されている。本実施例では、芳香剤収納室112が二つあるので、一方の芳香剤119の香り、他方の芳香剤119の香り、又は両方の芳香剤119の組み合わせの香りの三種類を提供することができる。
【0011】
次に芳香剤用空気通路について説明する。芳香剤用空気通路118は、芳香剤収納室112の内部と、弁収納室113の内部とで概ね構成されている。芳香剤収納室112の主空気通路101aに面した壁には、主空気通路101a内の空気を芳香剤収納室112内に流入させるために流入口115が設けられている。また、芳香剤収納室112と弁収納室113を仕切る壁には、芳香剤収納室112内の空気を弁収納室113内に流入させるために、芳香剤収納室112の流出口及び弁収納室113の流入口の両方として機能する孔116が設けられている。また、弁収納室113の空気通路101bに面した壁には、弁収納室113内の空気を主空気通路101bに流入させるために流出口117が設けられている。
【0012】
次に芳香剤用空気通路118の遮断機構について説明する。芳香剤119の香りを断続的に主空気通路に流すために、弁収納室113には、閉弁時に孔116を閉塞しうるように延伸する弁体114aを有する弁114が配置されている。本実施例では、弁114は、非通電時において弁体114aを延伸させて閉弁し、通電時において弁体114aを後退させて孔116を開放して開弁するように構成された電磁弁である。このように、弁114が弁収納室113に収納されているので、閉弁時において、万が一にも弁体114aと孔116の隙間から弁収納室113内に流入することがあっても、香りを含んだ空気を弁収納室113内で保持することができる。すなわち、車両用空気清浄器を作動中、例えば、30秒間香りを放出して10分間香りを遮断する制御を行う場合において、香りを遮断する時、香りを主空気通路に一切流出させないように香りを遮断することができ、芳香剤の癒し効果を高めることができる。なお、香りの放出・遮断制御は、ランダム制御や揺らぎ(1/f)制御に代えてもよい。
【0013】
本実施例では、流入口115を断面積の大きな空気通路101aに設け、流出口117を断面積の小さな空気通路101bに設けている。これにより、流速が断面の直径の2乗に反比例することを表す質量保存の法則から、流入口115近傍の空気の流速は流出口117近傍の流速よりも小さくなり、位置水頭と圧力水頭と速度水頭の総和が一定であるというベルヌーイの定理と、流入口115と流出口117の位置水頭がほぼ同じであることとを考慮すると、芳香剤用空気通路の流入口115近傍の圧力は、芳香剤用空気通路の流出口117近傍の圧力よりも大きくなる。その結果、開弁時には、多量の空気が主空気通路101aから芳香剤収納室112内に流出し、多量の芳香剤119の香りを主空気通路101bに流すことができる。より多量の芳香剤119の香りを主空気通路101bに流すために、主空気通路101bの最小断面積の位置に流出口117を配置することにより、圧力差をさらに大きくすることが好ましい。
【0014】
また、主空気通路101b内を空気が滑らかに流れるように、図1に示すように、主空気通路101bの断面の減少の割合が流出口117まで次第に小さくなり、そこから下流に向けて断面の増加の割合が次第に大きくなる構成である。
【0015】
次に第二実施例の車両用空気清浄器を示す。図2に示すように、本実施例では、流出口117の上流及び下流の主空気通路101bの断面の減少及び増加の割合が一定(例えば、主空気通路101bは円錐台形状)であり、流出口117近傍では断面が一定(例えば、主空気通路101bは筒状)である。このような構成により、ケース本体111を製造するのが容易になるという利点がある。
【0016】
次に第三実施例の車両用空気清浄器を示す。図3に示すように、上記第一及び第二実施例では、電磁弁114の弁体114aで弁収納室113の流入口116を遮断しているのに対して、本実施例では、枢軸121回りで回転可能な蓋123で流入口116を遮断している。流入口116は、芳香剤119が弁収納室113内に流入するのを防ぐためにメッシュ状である、又は網部材が取り付けられている。蓋123は、ロッドアンドバー122を介してステッピングモータ120の軸に連結されており、モータ軸の回転により蓋123の開閉が制御される。これにより、モータ120で蓋123の開度を制御することにより、主空気通路101bに流す香りの量を選択することができるというさらなる利点がある。この場合、例えば、二つの異なる芳香剤119の香りの量の任意の比を選択して無数の香りを生成することができる。
【0017】
以上の記載では芳香剤119の例として多孔質セラミックボールに代えて、アルミナボールや筒状に巻かれた不織布でもよい。また、以上の記載では、芳香剤収納室及び弁収納室が二つであるが、当然、一つ又は三つ以上でもよい。
【図面の簡単な説明】
【図1】本発明の第一実施例の車両用空気清浄器の香り発生器の部分の断面図である。
【図2】本発明の第二実施例の車両用空気清浄器の香り発生器の部分の断面図である。
【図3】本発明の第三実施例の車両用空気清浄器の香り発生器の部分の断面図である。
【図4】従来の車両用空気清浄器の香り発生器の部分の断面図である。
【符号の説明】
101a…主空気通路
101b…主空気通路
112…芳香剤収納室
113…弁収納室
114…弁
114a…弁体
115…芳香剤収納室の空気流入口
116…芳香剤収納室の空気流出口(弁収納室の空気流入口)
117…弁収納室の空気流出口
118…芳香剤用空気通路
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle air purifier.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, it has been known to place an fragrance represented by aromatherapy in a vehicle cabin in order to reduce stress, awakening or tension of a passenger while driving a vehicle. However, if the fragrance of the fragrance is continuously sucked for a long time, the occupant's nose gets used to it, and there is a problem that simply placing the fragrance in the passenger compartment is not sufficient.
[0003]
In order to solve such a problem, it has been proposed to intermittently release the fragrance of the fragrance. As an example, as shown in FIG. 4, an air passage for fragrance 20 is provided in parallel with the air passage 10 in the air purifier for a vehicle, and the fragrance 30 and the fragrance are provided in the air passage 20 for fragrance. There is a method of controlling the opening and closing of the electromagnetic valve 40 in a vehicle air purifier provided with an electromagnetic valve 40 having a valve body that can be closed by contacting the opening provided in the air passage 20.
[0004]
However, since the solenoid valve 40 provided in the air passage for fragrance 20 cannot be made large, there is a limit in increasing the force for shutting off the air passage 20, and as a result, the solenoid valve 40 is closed to shut off the fragrance of the fragrance. Even when the valve is opened, a slight gap is formed between the valve element and the opening, and the occupant sucks the scent flowing out of the gap for a long time, and as a result, the effect of the fragrance is not sufficient. was there.
[0005]
[Problems to be solved by the invention]
In view of the above problems, an object of the present invention is to provide a vehicle air purifier having a function of completely blocking the fragrance of a fragrance.
[0006]
[Means for Solving the Problems]
According to the air purifier for a vehicle according to the first aspect of the present invention, the fragrance having the main air passage, the air inlet communicating with the main air passage, and the air outlet, and containing the fragrance therein is provided. A fragrance storage chamber, an air inlet communicating with the fragrance air outlet, an air outlet communicating with a main air passage downstream of the fragrance storage chamber air inlet, and a valve inside. The valve body of the valve is arranged to be extendable so as to close the air inlet of the valve storage chamber. Thereby, when the valve is opened, the air in the main air passage flows into the fragrance storage chamber and the valve storage chamber, and the air containing the fragrance of the fragrance is sent into the main air passage and the vehicle interior. The inflow port of the valve storage chamber that constitutes the agent air passage is shut off, and even if air containing scent leaks from this inflow port, it can be retained in the valve storage chamber. Can be shut off.
[0007]
Further, according to the vehicle air purifier of the second aspect, in the vehicle air purifier of the first aspect, the cross-sectional area of the main air passage at the air outlet of the valve storage chamber is smaller than the air of the fragrance storage chamber. It is smaller than the cross-sectional area of the main air passage at the inlet. Thereby, the pressure at the inlet and the outlet of the air passage for fragrance can be increased, and the air flow rate of the air passage for fragrance can be increased.
[0008]
Further, according to the vehicle air purifier according to claim 3, in the vehicle air purifier according to claim 1 or 2, there are two fragrance storage chambers and two valve storage chambers, and the fragrance storage chamber and the valve. A main passage is formed between one of the storage chambers and the other of the fragrance storage chamber and the valve storage chamber. Thus, the type of the fragrance of the fragrance can be selected by controlling the opening and closing of the two valves.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a sectional view of a main air passage of a vehicle air purifier. In FIG. 1, a main air passage 101a is formed inside a case main body 100 of an air purifier downstream of a fan (not shown) and a dust filter (not shown). Further, the main air passage 101a is connected downstream to an air passage 101b provided in the cassette-shaped scent generator 110, and communicates with an air outlet (not shown) of an air purifier further downstream.
[0010]
Next, the configuration of the scent generator 110 will be described in detail. The scent generator 110 is generally constituted by a cassette body 111. In the present embodiment, on both sides of the cassette body 111, a fragrance storage chamber 112 storing a fragrance 119 composed of, for example, a number of porous ceramic balls with a fragrance, and a valve storage chamber adjacent to the fragrance storage chamber 112 The main air passage 101b is formed between the fragrance storage chamber 112 and the valve storage chamber 113. In this embodiment, since there are two fragrance storage chambers 112, it is possible to provide three types of scents of one fragrance 119, scent of the other fragrance 119, or scent of a combination of both fragrances 119. it can.
[0011]
Next, the air passage for fragrance will be described. The fragrance air passage 118 is generally constituted by the inside of the fragrance storage chamber 112 and the inside of the valve storage chamber 113. An inlet 115 is provided on a wall of the fragrance storage chamber 112 facing the main air passage 101 a so that air in the main air passage 101 a flows into the fragrance storage chamber 112. In addition, a wall separating the fragrance storage chamber 112 and the valve storage chamber 113 has an outlet of the fragrance storage chamber 112 and a valve storage chamber for allowing air in the fragrance storage chamber 112 to flow into the valve storage chamber 113. A hole 116 is provided that functions as both the inlet of 113. Further, an outlet 117 is provided on a wall of the valve storage chamber 113 facing the air passage 101b to allow the air in the valve storage chamber 113 to flow into the main air passage 101b.
[0012]
Next, the shutoff mechanism of the air passage 118 for fragrance will be described. In order to intermittently allow the fragrance of the fragrance 119 to flow through the main air passage, a valve 114 having a valve element 114a extending so as to close the hole 116 when the valve is closed is disposed in the valve storage chamber 113. In this embodiment, the valve 114 is a solenoid valve configured to extend and close the valve element 114a when not energized, and to retract the valve element 114a and open the hole 116 when energized to open the valve. It is. As described above, since the valve 114 is stored in the valve storage chamber 113, even if the valve 114 may flow into the valve storage chamber 113 from the gap between the valve element 114a and the hole 116 when the valve is closed, Can be held in the valve storage chamber 113. In other words, during operation of the vehicle air purifier, for example, when controlling to release scent for 30 seconds and block scent for 10 minutes, when the scent is cut off, the scent is not allowed to flow into the main air passage at all. Can be blocked, and the healing effect of the fragrance can be enhanced. Note that the scent release / blocking control may be replaced with random control or fluctuation (1 / f) control.
[0013]
In this embodiment, the inlet 115 is provided in the air passage 101a having a large cross-sectional area, and the outlet 117 is provided in the air passage 101b having a small cross-sectional area. Thus, from the law of conservation of mass, which indicates that the flow velocity is inversely proportional to the square of the cross-sectional diameter, the flow velocity of the air near the inlet 115 becomes smaller than the flow velocity near the outlet 117, and the position head, pressure head, and velocity Considering Bernoulli's theorem that the sum of the heads is constant and that the positions of the inlet 115 and the outlet 117 are almost the same, the pressure near the inlet 115 of the air passage for fragrance is It becomes larger than the pressure near the outlet 117 of the air passage. As a result, when the valve is opened, a large amount of air flows out of the main air passage 101a into the fragrance storage chamber 112, and a large amount of fragrance of the fragrance 119 can flow into the main air passage 101b. In order to allow a larger amount of the fragrance of the fragrance 119 to flow into the main air passage 101b, it is preferable to further increase the pressure difference by disposing the outlet 117 at the position of the minimum cross-sectional area of the main air passage 101b.
[0014]
Also, as shown in FIG. 1, the rate of decrease in the cross section of the main air passage 101b gradually decreases to the outlet 117 so that air flows smoothly in the main air passage 101b, and the cross In this configuration, the rate of increase gradually increases.
[0015]
Next, a vehicle air purifier according to a second embodiment will be described. As shown in FIG. 2, in the present embodiment, the rate of decrease and increase in the cross section of the main air passage 101 b upstream and downstream of the outlet 117 is constant (for example, the main air passage 101 b has a truncated cone shape). The cross section is constant near the outlet 117 (for example, the main air passage 101b is cylindrical). With such a configuration, there is an advantage that the case main body 111 can be easily manufactured.
[0016]
Next, a vehicle air purifier according to a third embodiment will be described. As shown in FIG. 3, in the first and second embodiments, the inflow port 116 of the valve storage chamber 113 is shut off by the valve element 114 a of the solenoid valve 114, whereas in the present embodiment, the pivot 121 The inflow port 116 is blocked by a lid 123 that can rotate around. The inflow port 116 has a mesh shape or is fitted with a mesh member in order to prevent the fragrance 119 from flowing into the valve storage chamber 113. The lid 123 is connected to a shaft of the stepping motor 120 via a rod and bar 122, and the rotation of the motor shaft controls opening and closing of the lid 123. Thus, there is an additional advantage that the amount of the scent flowing through the main air passage 101b can be selected by controlling the opening degree of the lid 123 by the motor 120. In this case, for example, an arbitrary ratio of the amounts of the scents of the two different fragrances 119 can be selected to generate countless scents.
[0017]
In the above description, as an example of the fragrance 119, an alumina ball or a non-woven fabric wound in a cylindrical shape may be used instead of the porous ceramic ball. In the above description, the number of the fragrance storage chambers and the number of the valve storage chambers are two. However, one or three or more may be used.
[Brief description of the drawings]
FIG. 1 is a sectional view of a part of a scent generator of a vehicle air purifier according to a first embodiment of the present invention.
FIG. 2 is a sectional view of a part of a scent generator of a vehicle air purifier according to a second embodiment of the present invention.
FIG. 3 is a sectional view of a part of a scent generator of a vehicle air purifier according to a third embodiment of the present invention.
FIG. 4 is a cross-sectional view of a portion of a scent generator of a conventional vehicle air purifier.
[Explanation of symbols]
101a ... main air passage 101b ... main air passage 112 ... fragrance storage chamber 113 ... valve storage chamber 114 ... valve 114a ... valve element 115 ... air inlet 116 of the fragrance storage chamber 116 ... air outlet (valve) of the fragrance storage chamber Air inlet for storage room)
117: air outlet of valve storage chamber 118: air passage for fragrance

Claims (3)

主空気通路と、
前記主空気通路と連通した空気流入口と、空気流出口とを有し、かつ内部に芳香剤を収納する芳香剤収納室と、
前記芳香剤の空気流出口と連通した空気流入口と、前記芳香剤収納室の前記空気流入口よりも下流位置の主空気通路と連通した空気流出口とを有し、かつ弁を内部に備えた弁収納室とを備え、
前記弁の弁体は、前記弁収納室の空気流入口を閉鎖するように延伸可能に配置されていることを特徴とする車両用空気清浄器。
A main air passage;
An air inlet that communicates with the main air passage, an air outlet, and an aromatic storage chamber that stores an aromatic therein;
An air inlet communicating with the air outlet of the fragrance, an air outlet communicating with a main air passage at a position downstream of the air inlet of the fragrance storage chamber, and a valve provided therein. With a valve storage room,
An air purifier for a vehicle, wherein a valve body of the valve is extendably arranged to close an air inlet of the valve storage chamber.
前記弁収納室の空気流出口における前記主空気通路の断面積は、前記芳香剤収納室の空気流入口における前記主空気通路の断面積よりも小さいことを特徴とする請求項1に記載の車両用空気清浄器。The vehicle according to claim 1, wherein a cross-sectional area of the main air passage at an air outlet of the valve storage chamber is smaller than a cross-sectional area of the main air passage at an air inlet of the fragrance storage chamber. For air purifier. 前記芳香剤収納室及び前記弁収納室はそれぞれ二つあり、前記芳香剤収納室及び前記弁収納室の一方と、前記芳香剤収納室及び前記弁収納室の他方との間に前記主通路が形成されていることを特徴とする請求項1又は2に記載の車両用空気清浄器。The fragrance storage chamber and the valve storage chamber are each two, and the main passage is provided between one of the fragrance storage chamber and the valve storage chamber and the other of the fragrance storage chamber and the valve storage chamber. The vehicle air purifier according to claim 1, wherein the air purifier is formed.
JP2002210025A 2002-07-18 2002-07-18 Vehicle air cleaner Pending JP2004050937A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008189246A (en) * 2007-02-07 2008-08-21 Calsonic Kansei Corp Vehicular air conditioner
US8157508B2 (en) 2007-05-25 2012-04-17 Panasonic Corporation Blower apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008189246A (en) * 2007-02-07 2008-08-21 Calsonic Kansei Corp Vehicular air conditioner
US8157508B2 (en) 2007-05-25 2012-04-17 Panasonic Corporation Blower apparatus

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