JPH09196399A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH09196399A JPH09196399A JP8008497A JP849796A JPH09196399A JP H09196399 A JPH09196399 A JP H09196399A JP 8008497 A JP8008497 A JP 8008497A JP 849796 A JP849796 A JP 849796A JP H09196399 A JPH09196399 A JP H09196399A
- Authority
- JP
- Japan
- Prior art keywords
- air
- photocatalyst layer
- air conditioner
- light
- indoor unit
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、脱臭効果を有する
光触媒層を備えた空気調和機に関する。TECHNICAL FIELD The present invention relates to an air conditioner provided with a photocatalytic layer having a deodorizing effect.
【０００２】[0002]
【従来の技術】空気調和機の室内ユニットは、いわゆる
壁掛け形と呼ばれるものが多用されていて、被空調室壁
面の高所に取付けるようになっている。この種の室内ユ
ニットは、そのユニット本体が前面パネルと後板から構
成されており、ここには室内に対して開口する吸込み部
と吹出し部が設けられるとともに、内部に室内熱交換器
と送風機とが配置される。2. Description of the Related Art As an indoor unit of an air conditioner, a so-called wall-mounted type is often used, and is installed at a high place on a wall surface of an air-conditioned room. In this type of indoor unit, the unit body is composed of a front panel and a rear plate, which is provided with a suction part and a blowout part that open to the room, and has an indoor heat exchanger and a blower inside. Are placed.
【０００３】上記送風機は、ファンモータの回転軸に横
流ファンが嵌着されており、この送風作用で室内から吸
込み部を介して吸込んだ室内空気を室内熱交換器に導い
て熱交換をしたあと、吹出し部を介して再び室内に吹出
すようになっている。In the above-mentioned blower, a cross-flow fan is fitted on the rotary shaft of a fan motor, and the air blown from the room sucks the indoor air into the indoor heat exchanger for heat exchange. The air is again blown out into the room through the blowout section.
【０００４】したがって、上記室内ユニットは、空気吸
込み部と、エアーフィルタと、熱交換器と、後板と、横
流ファンおよび吹出し部などで構成される空気流通路構
成部材を備えている。Therefore, the indoor unit is provided with an air flow passage constituting member including an air suction portion, an air filter, a heat exchanger, a rear plate, a cross flow fan and a blow portion.
【０００５】ところで、被空調室には種々の臭いが発生
し、あるいは外部から持ち込まれて発散し充満すること
が多い。普通、このような臭いは、扉部の開閉にともな
って外部に放散され、自然的に消滅する。By the way, in the air-conditioned room, various odors are often generated or are brought in from the outside to be diffused and filled. Normally, such an odor is dissipated to the outside as the door is opened and closed, and disappears naturally.
【０００６】しかるに、扉部開閉の頻度が少なければ、
密閉度の高い近時の被空調室において、臭いの充満度も
高い状態で保持されてしまう。上記空気調和機が作用中
であれば、熱交換空気とともに臭いも室内に循環し、か
つその臭いが室内各部および室内ユニットの空気流通路
構成部材に染み込む。However, if the frequency of opening and closing the door is low,
In a recently air-conditioned room having a high degree of airtightness, the odor is also kept in a high degree of fullness. When the air conditioner is in operation, the odor also circulates in the room along with the heat exchange air, and the odor permeates into each part of the room and the air flow path forming member of the indoor unit.
【０００７】そして今度は、室内各部および室内ユニッ
トの空気流通路構成部材が臭いの発生源となり、快適空
調が妨げられる。そのため、脱臭機能を備えた室内ユニ
ットが提供されるようになった。これは、活性炭など臭
いの吸着剤を添着した脱臭フィルタを成形し、たとえば
空気吸込み部などの空気流通路内に配置する。Then, the airflow passage constituent members of the various parts of the room and the indoor unit become sources of odor, which hinders comfortable air conditioning. Therefore, an indoor unit having a deodorizing function has come to be provided. For this, a deodorizing filter in which an odorous adsorbent such as activated carbon is attached is formed and placed in an air flow passage such as an air suction portion.
【０００８】上記脱臭フィルタの存在により、室内ユニ
ットの熱交換作用にともなって、極めて効果的な脱臭作
用が行われることになり、これまでの臭いの問題が一挙
に解決されるに至った。なお、脱臭機能のメンテナンス
としては、吸着機能を失効した脱臭フィルタを取付け部
位から取外し、代って未吸着の新品脱臭フィルタと交換
する。Due to the presence of the above deodorizing filter, a very effective deodorizing action is performed along with the heat exchanging action of the indoor unit, and the odor problem so far has been solved all at once. As for maintenance of the deodorizing function, the deodorizing filter having the deactivated adsorption function is removed from the installation site and replaced with a new undesorbed deodorizing filter.
【０００９】[0009]
【発明が解決しようとする課題】このようにして、被空
調室内に臭いがこもることがなく、快適空調がなされる
ようになったが、臭いの吸着剤を用いての脱臭作用であ
るところから、その効果は飽和吸着量をもって限界とな
る。In this way, comfortable air conditioning can be performed without odors being trapped in the air-conditioned room. However, it is the deodorizing action using the odor adsorbent. However, the effect is limited by the saturated adsorption amount.
【００１０】すなわち、吸着剤が飽和吸着量に到達した
ならば、それ以上の脱臭効果を原則的には発揮しなくな
る。吸着剤が飽和吸着量に到達したことを具体的に報知
する手段は開発されていないから、新品の脱臭フィルタ
と交換する時期を誤ってしまいがちになる。また、その
脱臭有効期間自体、決して長いとは言えず、実際の使用
上は不十分なものであった。That is, when the adsorbent reaches the saturated adsorption amount, in principle, the deodorizing effect further cannot be exerted. Since no means has been developed to specifically notify that the adsorbent has reached the saturated adsorption amount, it is apt to make a mistake when replacing the deodorizing filter with a new one. In addition, the deodorizing effective period itself is not long, and it is insufficient in actual use.
【００１１】さらに、空気流通路に上記脱臭フィルタを
配置するので、その分、空気流の妨げとなって圧力損失
が増大するとともに、室内ユニットの厚さが増すことと
なり、室内への突出感、および存在感が増大するなどの
不具合がある。Furthermore, since the deodorizing filter is arranged in the air flow passage, the air flow is obstructed by that much, the pressure loss increases, and the thickness of the indoor unit increases. Also, there are problems such as an increase in presence.
【００１２】本発明は上記事情にもとづきなされたもの
であり、その目的とするところは、室内ユニットに脱臭
機能を備えることは勿論、その有効期間の大幅な延長を
得て、有効性の増大とメンテナンス性の向上を図った空
気調和機を提供しようとするものである。The present invention has been made in view of the above circumstances, and an object of the invention is not only to provide an indoor unit with a deodorizing function, but also to obtain a significant extension of its effective period and increase its effectiveness. It is intended to provide an air conditioner with improved maintainability.
【００１３】[0013]
【課題を解決するための手段】上記目的を満足するた
め、本発明の空気調和機は、請求項１として、室内ユニ
ットと、この室内ユニットに備えられ空気流通路を構成
する部材とを具備し、上記空気流通路構成部材の表面
は、光触媒層からなることを特徴とする。In order to satisfy the above object, an air conditioner of the present invention comprises an indoor unit as claimed in claim 1 and a member which is provided in the indoor unit and constitutes an air flow passage. The surface of the air flow path forming member is formed of a photocatalyst layer.
【００１４】請求項２として、請求項１記載の上記空気
流通路構成部材は、被空調室空気の吸込み部と、エアー
フィルタと、熱交換器と、後板と、横流ファンおよび熱
交換空気の吹出し部などであり、上記光触媒層は、これ
ら構成部材の少なくとも一つの部材の表面に設けられる
ことを特徴とする。According to a second aspect of the present invention, in the air flow path forming member according to the first aspect, the air intake portion of the air-conditioned room, the air filter, the heat exchanger, the rear plate, the cross flow fan and the heat exchange air. The photocatalyst layer is provided on the surface of at least one of the constituent members.
【００１５】請求項３として、請求項１記載の上記光触
媒層は、一次粒子径５０nm以下のアナターゼ型酸化チタ
ン粒子からなることを特徴とする。請求項４として、請
求項１記載の上記光触媒層は、一次粒子径５０nm以下の
アナターゼ型酸化チタン粒子をシリコーン樹脂バインダ
液に分散してスラリを形成し、このスラリを上記空気流
通路構成部材表面に塗布しかつ焼成することで固形表層
化されることを特徴とする。A third aspect of the present invention is characterized in that the photocatalyst layer according to the first aspect is composed of anatase type titanium oxide particles having a primary particle diameter of 50 nm or less. According to claim 4, the photocatalyst layer according to claim 1, wherein anatase-type titanium oxide particles having a primary particle diameter of 50 nm or less are dispersed in a silicone resin binder liquid to form a slurry, and the slurry is formed on the surface of the airflow passage constituting member. It is characterized in that a solid surface layer is formed by applying to and baking.
【００１６】請求項５として、請求項１記載の上記光触
媒層は、一次粒子径５０nm以下のアナターゼ型酸化チタ
ン粒子を上記空気流通路構成部材中に練りこみ固定化す
ることで固形表層化されることを特徴とする。As a fifth aspect, the photocatalyst layer according to the first aspect is formed into a solid surface layer by kneading and fixing anatase type titanium oxide particles having a primary particle size of 50 nm or less in the air flow passage constituting member. It is characterized by
【００１７】請求項６として、請求項１記載の光触媒層
は、酸化チタン半導体のバンドキャップに近い波長の光
を照射する光源からの光を受けることによって励起する
ことを特徴とする。A sixth aspect of the present invention is characterized in that the photocatalyst layer according to the first aspect is excited by receiving light from a light source that emits light having a wavelength close to the band cap of the titanium oxide semiconductor.
【００１８】請求項７として、請求項６記載の上記室内
ユニットは、上記光源からの光を光触媒層へ導くための
反射、導光機構を備えたことを特徴とする。上述の課題
を解決する手段を採用することにより、請求項１ないし
請求項７の発明では、光触媒層を室内ユニットの空気流
通路構成部材に形成するため、脱臭の再生効果を有し、
長期間に亘りその効果が維持される。According to a seventh aspect, the indoor unit according to the sixth aspect is provided with a reflection / light guiding mechanism for guiding the light from the light source to the photocatalyst layer. By adopting the means for solving the above-mentioned problems, in the invention of claims 1 to 7, since the photocatalyst layer is formed in the air flow path constituting member of the indoor unit, it has a deodorizing regeneration effect,
The effect is maintained for a long time.
【００１９】また、臭気成分が光触媒層で分解除去され
て無臭気成分となるため、メンテナンス性に優れる。従
来の脱臭フィルタ装着構造とは異なり、空気流の妨げと
なることがなく、既存の室内ユニットの空気流通路にそ
のまま脱臭機能を付与できて、圧力損失のごとき不具合
の発生がなく、加えて奥行きサイズの変更も不要であ
る。Further, since the odorous components are decomposed and removed by the photocatalyst layer to become odorless components, the maintainability is excellent. Unlike the conventional deodorizing filter mounting structure, it does not obstruct the air flow, and it can add the deodorizing function to the existing airflow passage of the indoor unit without any problems such as pressure loss. There is no need to change the size.
【００２０】[0020]
【発明の実施の形態】以下、本発明の実施の形態を、図
面を参照して説明する。図１に示すように、空気調和機
の室内ユニットが構成される。空気調和機本体であるユ
ニット本体１は、前面パネル２と後板３とから構成され
る。前面パネル２の前面側にはグリル４が嵌め込まれ、
前部吸込み口２ａが開口される。上面にはグリル５が嵌
め込まれ、上部吸込み口２ｂが開口される。Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an indoor unit of the air conditioner is configured. The unit main body 1, which is the air conditioner main body, includes a front panel 2 and a rear plate 3. The grill 4 is fitted on the front side of the front panel 2,
The front suction port 2a is opened. The grill 5 is fitted on the upper surface, and the upper suction port 2b is opened.
【００２１】このようにして、前面グリル４に設けられ
る前部吸込み口２ａおよび上面グリル５に設けられる上
部吸込み口２ｂとで空気吸込み部１０が構成される。ユ
ニット本体１内には、各吸込口２ａ，２ｂに亘って対向
するよう緩やかな円弧状に曲成されるエアーフイルタ６
と、逆Ｖ字状に形成される熱交換器７とが配置される。In this way, the air suction section 10 is constituted by the front suction port 2a provided on the front grill 4 and the upper suction port 2b provided on the upper grill 5. In the unit body 1, an air filter 6 which is bent in a gentle arc shape so as to face each of the suction ports 2a and 2b.
And a heat exchanger 7 formed in an inverted V shape.
【００２２】上記熱交換器７は、前部吸込み口２ａに対
向する前側熱交換器７Ａと、上部吸込み口２ｂに対向す
る後側熱交換器７Ｂとから構成される。特に、後側熱交
換器７Ｂの上面に沿って補助熱交換器８が配置されてい
て、上部吸込み口２ｂとの間に介在される。The heat exchanger 7 comprises a front heat exchanger 7A facing the front suction port 2a and a rear heat exchanger 7B facing the upper suction port 2b. In particular, the auxiliary heat exchanger 8 is arranged along the upper surface of the rear heat exchanger 7B and is interposed between the auxiliary heat exchanger 8 and the upper suction port 2b.
【００２３】この熱交換器７を構成する前側熱交換器７
Ａ下端部は低い位置にあり、下部には前ドレンパン９Ａ
が配置される一方、後側熱交換器７Ｂ下端部は高い位置
にあり、この下部には後ドレンパン９Ｂが配置される。
これら前，後ドレンパン９Ａ，９Ｂは、上記後板３に一
体に設けられる。The front heat exchanger 7 constituting this heat exchanger 7
The lower end of A is at a low position, and the front drain pan 9A is at the bottom.
While the lower end of the rear heat exchanger 7B is at a high position, and the rear drain pan 9B is arranged at the lower part thereof.
The front and rear drain pans 9A and 9B are integrally provided on the rear plate 3.
【００２４】逆Ｖ字状に形成される上記熱交換器７の内
部位置、すなわちこの前側熱交換器７Ａと後側熱交換器
７Ｂとの間に配置され、これら熱交換器に覆われるよう
にして室内送風機１１が配置される。The heat exchanger 7 is formed in an inverted V shape inside the heat exchanger 7, that is, between the front heat exchanger 7A and the rear heat exchanger 7B so that the heat exchanger 7 is covered by these heat exchangers. The indoor blower 11 is arranged.
【００２５】上記室内送風機１１は、上記熱交換器７の
幅寸法と同一の軸方向寸法の横流ファン１２と、この横
流ファン１２の一側部に回転軸を介して連結されるファ
ンモータ（図示しない）とから構成される。The indoor blower 11 has a cross-flow fan 12 having the same axial dimension as the width dimension of the heat exchanger 7, and a fan motor (shown in the figure) connected to one side of the cross-flow fan 12 via a rotary shaft. No)) and.
【００２６】上記横流ファン１２の吹出し側には、後板
３一部と前ドレンパン９Ａとからなる送風路１８が形成
されており、上記送風路１８の手前側端部に沿って、吹
出し口２０が開口される。上記前ドレンパン９Ａは、こ
の吹出し口２０の手前側端部に沿って設けられ、上記後
ドレンパン９Ｂは、上記送風路１８の上部側に沿って設
けられることになる。An air blow passage 18 consisting of a part of the rear plate 3 and a front drain pan 9A is formed on the blow side of the cross flow fan 12, and the blow outlet 20 is formed along the front end of the blow passage 18. Is opened. The front drain pan 9A is provided along the front end of the outlet 20, and the rear drain pan 9B is provided along the upper side of the blower passage 18.
【００２７】上記吹出し口２０には、ここから吹出され
る熱交換空気の風向を設定するためのルーバ２１が設け
られる。これら吹出し口２０とルーバ２１とで、熱交換
空気の吹出し部２２が構成される。The outlet 20 is provided with a louver 21 for setting the wind direction of the heat exchange air blown from the outlet 20. The blowout port 20 and the louver 21 form a blowout portion 22 for the heat exchange air.
【００２８】そして、室内送風機１１の作動によって、
被空調室空気が空気吸込み部１０を介してユニット本体
１内に吸込まれ、エアーフィルタ６および熱交換器７を
通過し、吹出し部２２から再び被空調室へ吹出されるよ
うになっている。By the operation of the indoor blower 11,
Air in the air-conditioned room is sucked into the unit main body 1 through the air suction portion 10, passes through the air filter 6 and the heat exchanger 7, and is blown out again from the air outlet 22 to the air-conditioned room.
【００２９】このように被空調室空気は、空気吸込み部
１０、エアーフィルタ６、熱交換器７、後板３、横流フ
ァン１２および吹出し部２２に沿って順次吹出されると
ころから、これら部材で空気流通路Ｓを構成することと
なる。As described above, the air in the air-conditioned room is sequentially blown out along the air suction portion 10, the air filter 6, the heat exchanger 7, the rear plate 3, the cross-flow fan 12 and the blowing portion 22, so that these members are used. The air flow passage S will be configured.
【００３０】そして、上記空気流通路Ｓの構成部材であ
る、空気吸込み部１０と、エアーフィルタ６と、熱交換
器７と、後板３と、横流ファン１２および空気吹出し部
２２のうちの少なくとも一つの部材の表面に光触媒層ｎ
が形成される。At least one of the air suction part 10, the air filter 6, the heat exchanger 7, the rear plate 3, the cross flow fan 12 and the air blowing part 22 which are the constituent members of the air flow passage S. Photocatalyst layer n on the surface of one member
Is formed.
【００３１】ここでは、図２（Ａ），（Ｂ）に拡大して
示すように、空気吸込み部１０を構成する前面グリル４
に設けられる前部吸込み口２ａ周面および上面グリル５
に設けられる上部吸込み口２ｂ周面に上記光触媒層ｎが
形成される。Here, as shown in an enlarged view in FIGS. 2A and 2B, the front grille 4 which constitutes the air suction portion 10 is shown.
Front grill 2a and upper surface grill 5 provided in the
The photocatalyst layer n is formed on the peripheral surface of the upper suction port 2b provided in the.
【００３２】上記光触媒層ｎは、一次粒子径５０nm以下
のアナターゼ型酸化チタン粒子からなる。すなわち、光
触媒層ｎの成形工程を説明すれば、はじめに、一次粒子
径５０nm以下のアナターゼ型酸化チタン粒子をシリコー
ン樹脂バインダ液に分散して、スラリを形成する。The photocatalyst layer n is composed of anatase type titanium oxide particles having a primary particle diameter of 50 nm or less. That is, the molding process of the photocatalyst layer n will be described. First, anatase type titanium oxide particles having a primary particle diameter of 50 nm or less are dispersed in a silicone resin binder liquid to form a slurry.
【００３３】そしてこのスラリを、空気流通路構成部材
である前面グリル４に設けられる前部吸込み口２ａ表面
および上面グリル５に設けられる上部吸込み口２ｂ表面
に塗布する。Then, this slurry is applied to the surface of the front suction port 2a provided on the front grill 4 which is an air flow path forming member and the surface of the upper suction port 2b provided on the upper grill 5.
【００３４】ついで、各グリル４，５を焼成することで
スラリが固形化し、前部吸込み口２ａ表面および上部吸
込み口２ｂ表面に沿って表層化される。このようなグリ
ル４，５をユニット本体１の所定位置に組み込んで、冷
凍サイクル運転を行う。上述したように、被空調室空気
は空気吸込み部１０を介してユニット本体１内に吸込ま
れ、熱交換されて吹出し部２２から再び室内に吹出され
る。Then, the grills 4 and 5 are fired to solidify the slurry and form a surface layer along the surface of the front suction port 2a and the surface of the upper suction port 2b. By incorporating such grills 4 and 5 in predetermined positions of the unit main body 1, the refrigerating cycle operation is performed. As described above, the air in the air-conditioned room is sucked into the unit main body 1 through the air suction section 10, is heat-exchanged, and is blown out into the room again from the blowing section 22.
【００３５】その一方で、被空調室Ｒには照明灯Ｈが設
けられていて、ここから照射される光が室内ユニットＹ
に到達する。光は室内ユニットＹ表面である吸込み部１
０を照射するところから、この表面に形成される光触媒
層ｎに吸収される。光触媒層ｎでは、光を吸収して活性
化し励起される。On the other hand, an illumination lamp H is provided in the air-conditioned room R, and the light emitted from the illumination lamp H is used as the indoor unit Y.
To reach. The light is the suction unit 1 which is the surface of the indoor unit Y.
From the point of irradiating 0, it is absorbed by the photocatalyst layer n formed on this surface. In the photocatalyst layer n, light is absorbed, activated, and excited.
【００３６】吸込み部１０を介してユニット本体１内に
吸込まれる被空調室空気は、光触媒層ｎに接触する。励
起した光触媒層ｎは、空気に含まれる臭いの成分粒子、
あるいは空気に含まれる水蒸気や細かい油粒などを確実
に捕捉して分解する。Air in the air-conditioned room which is sucked into the unit main body 1 through the suction portion 10 contacts the photocatalyst layer n. The excited photocatalyst layer n has odor component particles contained in air,
Alternatively, the water vapor and fine oil particles contained in the air are surely captured and decomposed.
【００３７】すなわち、臭気成分などは光触媒層ｎに接
触して酸化分解除去され、無臭気成分に換る。同時に、
臭気成分などとともに空気に含まれる有機汚染物質も酸
化分解除去される。That is, odorous components and the like are brought into contact with the photocatalyst layer n to be oxidatively decomposed and removed to be converted to odorless components. at the same time,
Organic pollutants contained in the air together with odorous components are also oxidatively decomposed and removed.
【００３８】被空調室空気は吸込み部１０を通過する際
に光触媒層ｎによって脱臭され、さらには殺菌がなされ
る。熱交換器７を介して吹出し部２２から吹出される熱
交換空気は完全に脱臭・防菌・清浄化されたものとな
る。The air in the air-conditioned room is deodorized by the photocatalyst layer n when passing through the suction section 10, and further sterilized. The heat exchange air blown from the blowout part 22 via the heat exchanger 7 is completely deodorized, germ-proof, and cleaned.
【００３９】このようにして、熱交換空気は光触媒層ｎ
の触媒作用によって、高い衛生度を有した状態に変換さ
れ、被空調室Ｒ内へ吹出される。しかも、光触媒はそれ
自体が光を受けて励起、再生する特性があるので、長期
の使用に亘っても少しの劣化もなく、その作用効果は半
永久的に継続保持され、何らのメンテナンスも不要であ
る。In this way, the heat exchange air is transferred to the photocatalyst layer n.
Is converted into a state having a high degree of hygiene and is blown into the air-conditioned room R. Moreover, since the photocatalyst itself has the property of being excited and regenerated by receiving light, it does not deteriorate a little even during long-term use, its action and effect is maintained semipermanently, and no maintenance is required. is there.
【００４０】さらに、従来のフィルタ挿入方式とは異な
り、空気流の妨げとなる構造を追加せずにすみ、既存の
室内ユニットＹの空気流通路Ｓ途中に脱臭機能を付与で
きるため、圧力損失の問題が生じることがなく、加えて
脱臭機構付与にともなう室内ユニットＹの奥行きサイズ
を増大することもなく、コンパクトを保持できる。Further, unlike the conventional filter insertion method, it is possible to add a deodorizing function in the middle of the air flow passage S of the existing indoor unit Y without adding a structure that obstructs the air flow, so that pressure loss can be reduced. A compact size can be maintained without causing any problems, and without increasing the depth size of the indoor unit Y accompanying the deodorizing mechanism.
【００４１】以下は、実際に行った実験例である。すな
わち、前面パネル４の吸込み口２ａを構成するグリルと
して、ステンレス製のパンチングメタル板（１８０mm×
５４０mm、開口率５０％）で形成し、その表面に一次粒
子径１０nmのアナターゼ型酸化チタンＴｉＯ2 粒子を分
散させたスラリ液を塗布し、そのあと焼き付けして膜厚
３〜４μm のＴｉＯ2 光触媒コーティング層を設けた。The following is an example of an actual experiment. That is, a punching metal plate (180 mm x 180 mm) made of stainless steel is used as a grill forming the suction port 2a of the front panel 4.
540 mm, aperture ratio 50%), the surface of which is coated with a slurry liquid in which anatase type titanium oxide TiO 2 particles having a primary particle diameter of 10 nm are dispersed, and then baked to form a TiO 2 photocatalyst having a thickness of 3 to 4 μm. A coating layer was provided.
【００４２】このような前面パネル４を備えた室内ユニ
ットＹを、濃度１００ppm のイソプレンガスを注入し
た、容積０．７ｍ3 の試験室内に設置する。そして、同
試験室に備えた２００Ｗの蛍光灯を点灯し、かつその状
態で１２時間継続して送風運転を行う。The indoor unit Y provided with such a front panel 4 is installed in a test chamber having a volume of 0.7 m 3 in which isoprene gas having a concentration of 100 ppm is injected. Then, the 200 W fluorescent lamp provided in the same test room is turned on, and the blowing operation is continuously performed for 12 hours in that state.
【００４３】時間が経過したら送風運転を一旦停止し
て、試験室内における第１回目のイソプレンガス残存率
を測定した。つぎに、試験室内に再び１００ppm のイソ
プレンガスを注入し、上記蛍光灯は点灯したまま１２時
間継続して送風運転を行い、そのあと第２回目のイソプ
レンガス残存率を測定した。After a lapse of time, the blowing operation was once stopped and the first isoprene gas residual rate in the test chamber was measured. Next, 100 ppm of isoprene gas was injected again into the test chamber, and the blowing operation was continued for 12 hours while the fluorescent lamp was on, and then the second isoprene gas residual rate was measured.
【００４４】また、比較例として、同じ室内ユニットの
エアーフィルタと熱交換器との間に、粒径７０〜２００
メッシュの活性炭をハニカム状コアに添着した４０mm×
２００mm×５mmｔのフィルタを介設したものについて
も、同様の条件下で測定した。As a comparative example, a particle size of 70 to 200 is provided between the air filter and the heat exchanger of the same indoor unit.
40mm × with activated carbon of mesh attached to honeycomb core
The measurement was conducted under the same conditions for the filter having a 200 mm × 5 mmt filter.
【００４５】第１回目の脱臭実験におけるイソプレン残
存率（％）は、光触媒塗布品では６１であるのに対し
て、活性炭品では５９であり、光触媒塗布品および活性
炭品はともに、ほぼ同等の残存率であった。The residual isoprene ratio (%) in the first deodorization experiment was 61 for the photocatalyst-coated product, whereas it was 59 for the activated carbon product, and both the photocatalyst-coated product and the activated carbon product had almost the same residual amount. It was a rate.
【００４６】ただし、第２回目の脱臭実験におけるイソ
プレン残存率（％）は、光触媒塗布品が６０であるのに
対して、活性炭品では９８であった。すなわち、光触媒
塗布品の残存率は第１回目とほとんど変わりがなく、同
等の脱臭効果を奏するのに対して、活性炭品ではイソプ
レンガスがほとんど吸着されない飽和吸着状態となって
いる。However, the isoprene residual rate (%) in the second deodorization experiment was 60 for the photocatalyst-coated product and 98 for the activated carbon product. That is, the residual rate of the photocatalyst-coated product is almost the same as that of the first time and the same deodorizing effect is exhibited, whereas the activated carbon product is in a saturated adsorption state in which isoprene gas is hardly adsorbed.
【００４７】このようにして実験結果によれば、光触媒
品が活性炭品よりも長期間に亘り、その効果発現を維持
できることが確認された。なお、上記光触媒層ｎは、上
述した空気吸込み部１０以外に、空気流通路Ｓを構成す
る部材として、エアーフィルタ６、熱交換器７、後板
３、横流ファン１２および吹出し部２２の、少なくとも
一つの構成部材の表面に形成してもよい。Thus, according to the experimental results, it was confirmed that the photocatalyst product can maintain its effect expression for a longer period of time than the activated carbon product. The photocatalyst layer n is, in addition to the above-described air suction section 10, at least the air filter 6, the heat exchanger 7, the rear plate 3, the cross-flow fan 12, and the blowout section 22 as members constituting the air flow passage S. It may be formed on the surface of one component.
【００４８】また、上記光触媒層ｎを形成する手段とし
て、空気流通路Ｓを構成する部材の成形時に、一次粒子
径５０nm以下のアナターゼ型酸化チタン粒子を、部材素
材中に練りこみ固定化することであってもよい。As a means for forming the photocatalyst layer n, anatase type titanium oxide particles having a primary particle diameter of 50 nm or less are kneaded and fixed in the material of the member at the time of molding the member constituting the air flow passage S. May be
【００４９】さらに、光触媒を励起するための光源とし
て、蛍光灯などの単なる照明灯ばかりでなく、光触媒を
より効率よく励起して活性分解作用を行わせる酸化チタ
ン半導体のバンドキャップ（基底状態から励起状態のエ
ネルギの値の差）に近い波長の光を照射する光源を用意
するとよい。Further, as a light source for exciting the photocatalyst, not only a simple illuminating lamp such as a fluorescent lamp but also a band cap (excited from the ground state) of a titanium oxide semiconductor that excites the photocatalyst more efficiently to perform an active decomposition action. It is advisable to prepare a light source that emits light having a wavelength close to the difference in energy value of the state.
【００５０】空気流通路Ｓを構成する部材として、特
に、横流ファン１２など室内ユニットＹ内部に配置さ
れ、外部光源からの光が到達し難い部材に光触媒層ｎを
設けた場合は、この光触媒層ｎにより効果的に光を導く
ための反射、導光機構を室内ユニット内に備えることに
より、高い脱臭効果を得られる。When the photocatalyst layer n is provided as a member constituting the airflow passage S, particularly in a member such as the crossflow fan 12 which is arranged inside the indoor unit Y and light from an external light source is hard to reach, the photocatalyst layer n is provided. A high deodorizing effect can be obtained by providing the indoor unit with a reflection / light guiding mechanism for effectively guiding light by n.
【００５１】たとえば図３に示すように、熱交換器７お
よび横流ファン１２の表面に光触媒層ｎを設けた場合
は、外部の照明灯の光が到達し難いので、ユニット本体
１内部の必要箇所に光源Ｈａ，Ｈｂを備える。For example, as shown in FIG. 3, when the photocatalyst layer n is provided on the surfaces of the heat exchanger 7 and the cross-flow fan 12, it is difficult for the light of an external illumination lamp to reach, so that a necessary portion inside the unit main body 1 is provided. Are equipped with light sources Ha and Hb.
【００５２】なお、ここでは２本の光源を備えたが、１
本の光源のみとし、反射機構を備えることによって他の
光源に代えることもできる。あるいは図４に示すよう
に、横流ファン１２の表面に光触媒層ｎを設けた場合
は、空気通風路Ｓから外れた位置に光源Ｈｃを配置し、
この投光部ａに対向して導光機構である光ファイバ束Ｆ
を設ける。Although two light sources are provided here,
It is also possible to use only a light source of a book and replace it with another light source by providing a reflection mechanism. Alternatively, as shown in FIG. 4, when the photocatalyst layer n is provided on the surface of the cross flow fan 12, the light source Hc is arranged at a position deviated from the air ventilation passage S,
An optical fiber bundle F which is a light guide mechanism facing the light projecting portion a.
Is provided.
【００５３】すなわち、上記光ファイバ束Ｆは、その一
端部が光源Ｈｃの投光部ａに対向しており、かつ可能な
限り空気通風路Ｓの通風上の支障とならない位置を選択
し屈曲して延出される。その他端部は、横流ファン１２
の軸方向に沿って所定間隔を存して対向する。That is, one end of the optical fiber bundle F is opposed to the light projecting portion a of the light source Hc, and the position where it does not obstruct the ventilation of the air ventilation passage S is selected as possible and bent. Be extended. The other end is a cross-flow fan 12
Are opposed to each other at a predetermined interval along the axial direction of.
【００５４】このように、光ファイバ束Ｆを用いて導光
機構を構成すれば、光源Ｈｃの位置の選択自由度が増し
て設計上有利となり、しかも空気通風路Ｓの通風抵抗を
抑制できる。As described above, if the light guide mechanism is constructed by using the optical fiber bundle F, the degree of freedom in selecting the position of the light source Hc is increased, which is advantageous in design, and the ventilation resistance of the air ventilation passage S can be suppressed.
【００５５】[0055]
【発明の効果】以上述べたように、請求項１の発明によ
れば、室内ユニットに備えられる空気流通路構成部材の
表面は、光触媒層からなる。請求項２の発明によれば、
空気流通路構成部材は、空気吸込み部、エアーフィル
タ、熱交換器、後板、横流ファンおよび熱交換空気吹出
し部などであり、これら構成部材の少なくとも一つの部
材の表面に光触媒層が形成される。As described above, according to the first aspect of the present invention, the surface of the air flow passage forming member provided in the indoor unit is formed of the photocatalyst layer. According to the invention of claim 2,
The airflow passage constituent member is an air suction portion, an air filter, a heat exchanger, a rear plate, a crossflow fan, a heat exchange air blowing portion, and the like, and a photocatalytic layer is formed on the surface of at least one of these constituent members. .
【００５６】請求項３の発明によれば、上記光触媒層
は、一次粒子径５０nm以下のアナターゼ型酸化チタン粒
子からなる。請求項４の発明によれば、上記光触媒層
は、一次粒子径５０nm以下のアナターゼ型酸化チタン粒
子をシリコーン樹脂バインダ液に分散してスラリを形成
し、これを空気流通路構成部材表面に塗布しかつ焼成す
ることで固形表層化される。According to the invention of claim 3, the photocatalyst layer is composed of anatase type titanium oxide particles having a primary particle diameter of 50 nm or less. According to the invention of claim 4, in the photocatalyst layer, anatase-type titanium oxide particles having a primary particle diameter of 50 nm or less are dispersed in a silicone resin binder solution to form a slurry, which is applied to the surface of the airflow passage forming member. A solid surface layer is formed by firing.
【００５７】請求項５の発明によれば、上記光触媒層
は、一次粒子径５０nm以下のアナターゼ型酸化チタン粒
子を空気流通路構成部材中に練りこみ固定化することで
固形表層化される。According to the fifth aspect of the present invention, the photocatalyst layer is formed into a solid surface layer by kneading and fixing the anatase type titanium oxide particles having a primary particle diameter of 50 nm or less in the air flow path constituting member.
【００５８】請求項６の発明によれば、上記光触媒層
は、酸化チタン半導体のバンドキャップに近い波長の光
を照射する光源からの光を受けることによって励起す
る。請求項７の発明によれば、上記室内ユニットは、上
記光源からの光を光触媒層へ導くための反射、導光機構
を備えた。According to the sixth aspect of the invention, the photocatalytic layer is excited by receiving light from a light source that emits light having a wavelength close to the band cap of the titanium oxide semiconductor. According to the invention of claim 7, the indoor unit includes a reflection / light guiding mechanism for guiding the light from the light source to the photocatalytic layer.
【００５９】したがって、請求項１ないし請求項７の発
明によれば、室内ユニットに脱臭機能を備えることは勿
論、その有効期間の大幅な延長を得て、有効性の増大お
よびメンテナンス性の向上を図れ、快適居住空間の保持
に極めて有効である効果を奏する。Therefore, according to the inventions of claims 1 to 7, not only the indoor unit is provided with a deodorizing function, but also the effective period thereof is greatly extended to improve the effectiveness and maintainability. The effect is extremely effective in maintaining a comfortable living space.
【図１】本発明の実施の形態を示す、空気調和機室内ユ
ニットの概略の縦断面図。FIG. 1 is a schematic vertical sectional view of an air conditioner indoor unit showing an embodiment of the present invention.
【図２】（Ａ），（Ｂ）は、同実施の形態の、吸込み部
の拡大した縦断面図。2A and 2B are enlarged vertical cross-sectional views of a suction portion of the same embodiment.
【図３】他の実施の形態を示す、空気調和機室内ユニッ
トの概略の縦断面図。FIG. 3 is a schematic vertical cross-sectional view of an air conditioner indoor unit showing another embodiment.
【図４】さらに他の実施の形態を示す、光源からの光を
光触媒層へ導くための導光機構の説明図。FIG. 4 is an explanatory view of a light guide mechanism for guiding light from a light source to a photocatalyst layer according to still another embodiment.
Ｙ…室内ユニット、Ｓ…空気流通路、１０…空気吸込み
部、６…エアーフィルタ、７…熱交換器、３…後板、１
２…横流ファン、２２…吹出し部、ｎ…光触媒層、Ｆ…
光ファイバ。Y ... Indoor unit, S ... Air flow passage, 10 ... Air suction part, 6 ... Air filter, 7 ... Heat exchanger, 3 ... Rear plate, 1
2 ... Cross flow fan, 22 ... Blowing part, n ... Photocatalyst layer, F ...
Optical fiber.
Claims (7)
られ空気流通路を構成する部材とを具備し、上記空気流
通路構成部材の表面は、光触媒層からなることを特徴と
する空気調和機。1. An air conditioner comprising: an indoor unit; and a member included in the indoor unit to form an air flow passage, wherein the surface of the air flow passage forming member is formed of a photocatalyst layer.
は、被空調室空気の吸込み部と、エアーフィルタと、熱
交換器と、後板と、横流ファンおよび熱交換空気の吹出
し部などであり、上記光触媒層は、これら構成部材の少
なくとも一つの部材の表面に設けられることを特徴とす
る空気調和機。2. The air flow passage constituting member according to claim 1, wherein the air-conditioned room air suction portion, an air filter, a heat exchanger, a rear plate, a cross-flow fan, a heat exchange air blowing portion, and the like. The photocatalyst layer is provided on the surface of at least one of these constituent members.
径５０nm以下のアナターゼ型酸化チタン粒子からなるこ
とを特徴とする空気調和機。3. The air conditioner, wherein the photocatalyst layer according to claim 1 is composed of anatase-type titanium oxide particles having a primary particle diameter of 50 nm or less.
径５０nm以下のアナターゼ型酸化チタン粒子をシリコー
ン樹脂バインダ液に分散してスラリを形成し、このスラ
リを上記空気流通路構成部材表面に塗布しかつ焼成する
ことで固形表層化されることを特徴とする空気調和機。4. The photocatalyst layer according to claim 1, wherein anatase-type titanium oxide particles having a primary particle diameter of 50 nm or less are dispersed in a silicone resin binder liquid to form a slurry, and the slurry is formed on the surface of the airflow passage constituting member. An air conditioner characterized in that a solid surface layer is formed by applying it to and baking it.
径５０nm以下のアナターゼ型酸化チタン粒子を上記空気
流通路構成部材中に練りこみ固定化することで固形表層
化されることを特徴とする空気調和機。5. The photocatalyst layer according to claim 1, wherein anatase-type titanium oxide particles having a primary particle diameter of 50 nm or less are kneaded and fixed in the air flow passage constituent member to form a solid surface layer. And an air conditioner.
導体のバンドキャップに近い波長の光を照射する光源か
らの光を受けることによって励起することを特徴とする
空気調和機。6. The air conditioner, wherein the photocatalyst layer according to claim 1 is excited by receiving light from a light source that irradiates light having a wavelength close to the band cap of the titanium oxide semiconductor.
光源からの光を光触媒層へ導くための反射、導光機構を
備えたことを特徴とする空気調和機。7. The air conditioner according to claim 6, wherein the indoor unit includes a reflection / light guiding mechanism for guiding the light from the light source to the photocatalyst layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00849796A JP3274054B2 (en) | 1996-01-22 | 1996-01-22 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00849796A JP3274054B2 (en) | 1996-01-22 | 1996-01-22 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09196399A true JPH09196399A (en) | 1997-07-29 |
| JP3274054B2 JP3274054B2 (en) | 2002-04-15 |
Family
ID=11694760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00849796A Expired - Fee Related JP3274054B2 (en) | 1996-01-22 | 1996-01-22 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3274054B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220860A (en) * | 1999-01-28 | 2000-08-08 | Sharp Corp | Air-conditioner |
| US6884399B2 (en) | 2001-07-30 | 2005-04-26 | Carrier Corporation | Modular photocatalytic air purifier |
| WO2005100866A1 (en) * | 2004-04-15 | 2005-10-27 | Daikin Industries, Ltd. | Air conditioner |
| JP2005326137A (en) * | 2004-04-15 | 2005-11-24 | Daikin Ind Ltd | Air conditioner |
| JP2007147137A (en) * | 2005-11-25 | 2007-06-14 | Fujitsu General Ltd | Black light, and air conditioner provided with black light |
| JP2015197224A (en) * | 2014-03-31 | 2015-11-09 | パナソニックＩｐマネジメント株式会社 | air conditioner |
| WO2022163844A1 (en) * | 2021-01-29 | 2022-08-04 | 国立研究開発法人産業技術総合研究所 | Air cleaning apparatus, air cleaning method, microbe removal apparatus, microbe removal method, and flow path body |
| US20220291629A1 (en) * | 2021-03-15 | 2022-09-15 | Canon Kabushiki Kaisha | Image forming apparatus |
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| JPS62255741A (en) * | 1986-04-30 | 1987-11-07 | Hitachi Ltd | Air conditioner with deodorizing and sterlizing device |
| JPS6380833A (en) * | 1986-09-25 | 1988-04-11 | Toyota Central Res & Dev Lab Inc | Method and apparatus for purifying malodor in compartment |
| JPH01159033A (en) * | 1987-12-17 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Air purification apparatus |
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| JPH01218635A (en) * | 1988-02-29 | 1989-08-31 | Hitachi Ltd | Deodorizing agent, its manufacturing method, deodorizing method, deodorizing apparatus and refrigeration cycle apparatus with said deodorizing apparatus |
| JPH07171408A (en) * | 1993-06-28 | 1995-07-11 | Ishihara Sangyo Kaisha Ltd | Photocatalytic body and its production |
| JPH08296992A (en) * | 1995-04-24 | 1996-11-12 | Sharp Corp | Heat exchanger with deodorizing function |
| JPH09133408A (en) * | 1995-11-07 | 1997-05-20 | Sanyo Electric Co Ltd | Air conditioner |
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|---|---|---|---|---|
| JPS62255741A (en) * | 1986-04-30 | 1987-11-07 | Hitachi Ltd | Air conditioner with deodorizing and sterlizing device |
| JPS6380833A (en) * | 1986-09-25 | 1988-04-11 | Toyota Central Res & Dev Lab Inc | Method and apparatus for purifying malodor in compartment |
| JPH01159033A (en) * | 1987-12-17 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Air purification apparatus |
| JPH01189321A (en) * | 1988-01-22 | 1989-07-28 | Hitachi Ltd | Deodorizer for refrigerator |
| JPH01218635A (en) * | 1988-02-29 | 1989-08-31 | Hitachi Ltd | Deodorizing agent, its manufacturing method, deodorizing method, deodorizing apparatus and refrigeration cycle apparatus with said deodorizing apparatus |
| JPH07171408A (en) * | 1993-06-28 | 1995-07-11 | Ishihara Sangyo Kaisha Ltd | Photocatalytic body and its production |
| JPH08296992A (en) * | 1995-04-24 | 1996-11-12 | Sharp Corp | Heat exchanger with deodorizing function |
| JPH09133408A (en) * | 1995-11-07 | 1997-05-20 | Sanyo Electric Co Ltd | Air conditioner |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220860A (en) * | 1999-01-28 | 2000-08-08 | Sharp Corp | Air-conditioner |
| US6884399B2 (en) | 2001-07-30 | 2005-04-26 | Carrier Corporation | Modular photocatalytic air purifier |
| US7758821B2 (en) | 2001-07-30 | 2010-07-20 | Carrier Corporation | Modular photocatalytic air purifier |
| US7951327B2 (en) | 2001-07-30 | 2011-05-31 | Carrier Corporation | Photocatalytic air purifier for a fan coil unit |
| WO2005100866A1 (en) * | 2004-04-15 | 2005-10-27 | Daikin Industries, Ltd. | Air conditioner |
| JP2005326137A (en) * | 2004-04-15 | 2005-11-24 | Daikin Ind Ltd | Air conditioner |
| JP2007147137A (en) * | 2005-11-25 | 2007-06-14 | Fujitsu General Ltd | Black light, and air conditioner provided with black light |
| JP2015197224A (en) * | 2014-03-31 | 2015-11-09 | パナソニックＩｐマネジメント株式会社 | air conditioner |
| WO2022163844A1 (en) * | 2021-01-29 | 2022-08-04 | 国立研究開発法人産業技術総合研究所 | Air cleaning apparatus, air cleaning method, microbe removal apparatus, microbe removal method, and flow path body |
| US20220291629A1 (en) * | 2021-03-15 | 2022-09-15 | Canon Kabushiki Kaisha | Image forming apparatus |
| US11698603B2 (en) * | 2021-03-15 | 2023-07-11 | Canon Kabushiki Kaisha | Image forming apparatus including filter for removing particulates |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3274054B2 (en) | 2002-04-15 |
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