JPH01189321A - Deodorizer for refrigerator - Google Patents
Deodorizer for refrigeratorInfo
- Publication number
- JPH01189321A JPH01189321A JP63010601A JP1060188A JPH01189321A JP H01189321 A JPH01189321 A JP H01189321A JP 63010601 A JP63010601 A JP 63010601A JP 1060188 A JP1060188 A JP 1060188A JP H01189321 A JPH01189321 A JP H01189321A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- refrigerator
- adsorbent
- deodorizing device
- light source
- 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
Links
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 58
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000011941 photocatalyst Substances 0.000 claims abstract description 47
- 239000003463 adsorbent Substances 0.000 claims abstract description 33
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000005284 excitation Effects 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 238000010257 thawing Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 235000013305 food Nutrition 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000011045 prefiltration Methods 0.000 abstract description 4
- 239000002781 deodorant agent Substances 0.000 abstract description 3
- 238000004898 kneading Methods 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 description 22
- 210000000078 claw Anatomy 0.000 description 10
- 238000004332 deodorization Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0415—Treating air flowing to refrigeration compartments by purification by deodorizing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0681—Details thereof
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は冷蔵庫用脱臭装置に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a deodorizing device for a refrigerator.
従来より用いられている冷蔵庫用脱臭装置は、冷蔵庫の
冷気通路に活性炭等の吸着剤が入ったケースを設置し、
冷蔵庫内で発生した臭気をこの吸着剤に吸着させて除去
する方式のものが用いられている。Traditionally used refrigerator deodorizing devices install a case containing an adsorbent such as activated carbon in the cold air passage of the refrigerator.
A method is used in which the odor generated inside the refrigerator is removed by adsorption to this adsorbent.
この種の脱臭装置に関しては例えば実開昭４７−２２５
６６号公報にその一例が開示されている。Regarding this type of deodorizing device, for example, Utility Model Application No. 47-225
An example of this is disclosed in Japanese Patent No. 66.
〔発明が解決しようとする課題］
上述したように、従来の脱臭装置は発生した臭気を活性
炭等の吸着剤に吸着させて除去するものであるが、高濃
度の臭気成分にさらされると短期間で脱臭性能が低下す
る恐れがある。また吸着剤の吸着できる臭気成分子ｆｉ
（吸着保持量）には限界があるので、一定時間使用後は
吸着剤を脱臭装置から取はずして交換するか、あるいは
再生する必要がある。[Problems to be Solved by the Invention] As mentioned above, conventional deodorizing devices remove generated odors by adsorbing them to adsorbents such as activated carbon, but when exposed to high concentrations of odorous components, deodorizing performance may deteriorate. In addition, the odor component molecules fi that can be adsorbed by the adsorbent
Since there is a limit to the amount of adsorption and retention, it is necessary to remove the adsorbent from the deodorizing device and replace it after use for a certain period of time, or to regenerate it.
本発明は、脱臭効果を長期にわたりメインテナンスフリ
ーで良好に保持する冷蔵庫用脱臭装置を提供することに
ある。An object of the present invention is to provide a deodorizing device for a refrigerator that maintains a good deodorizing effect over a long period of time without maintenance.
光により励起されて前記吸着剤に吸着された成分を分解
できる光触媒層を設け、この光触媒に先触〔作用〕
本発明の冷蔵庫用脱臭装置は、吸着剤表面の光触媒に、
光触媒のバンドギャップ以上のエネルギーを持つ光を光
触媒励起光源より放射して、光触媒を励起する。これに
より光触媒に臭気成分の分解作用が生じ、吸着剤の表面
から徐々に吸着剤の吸着している臭気成分を分解除去す
る。光触媒励起光源にほとんど発熱しない光源を使用し
た場合は主に臭気成分が吸着剤の内側と外側の濃度差に
よる拡散により表面から徐々に分解除去される。A deodorizing device for a refrigerator according to the present invention includes a photocatalyst layer that is excited by light and can decompose the components adsorbed on the adsorbent, and acts as a precursor to the photocatalyst.
A photocatalyst excitation light source emits light with energy greater than the band gap of the photocatalyst to excite the photocatalyst. This causes the photocatalyst to decompose the odor components, and the odor components adsorbed by the adsorbent are gradually decomposed and removed from the surface of the adsorbent. When a light source that generates almost no heat is used as the photocatalyst excitation light source, odor components are gradually decomposed and removed from the surface mainly due to diffusion due to the difference in concentration between the inside and outside of the adsorbent.
光触媒励起光源に発熱する光源を使用し７た場合は、吸
着剤が近傍であるため吸着剤の温度も上昇し。If a light source that generates heat is used as the photocatalyst excitation light source, the temperature of the adsorbent will also rise because the adsorbent is nearby.
吸着保持量が低下するので臭気成分を放出し、それを表
面の光触媒が効率よく分解することになる。Since the amount of adsorption and retention decreases, odor components are released, which are efficiently decomposed by the photocatalyst on the surface.
このような動作を行うことにより、吸着剤を常にリフレ
ッシュして脱臭性能を長期間にわたり安定に保つことが
できる。By performing such an operation, the adsorbent can be constantly refreshed and the deodorizing performance can be kept stable over a long period of time.
以下１本発明の一実施例を第１図〜第１３図により説明
する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 13.
第１図において、ｌは下カバー、２は中しきり、３は上
カバーであり、本発明の冷蔵庫用脱臭装置の本体を形成
する。４は送風ファンであり、これにより脱臭剤５に通
風させて臭気成分を除去する。In FIG. 1, 1 is a lower cover, 2 is a middle cover, and 3 is an upper cover, which form the main body of the refrigerator deodorizing device of the present invention. Reference numeral 4 denotes a ventilation fan, which blows air through the deodorizer 5 to remove odor components.
６は光触媒励起光源の一例として紫外線ランプ、７はア
ルミニウム製の紫外線反射板であり、下カバー１に設置
する。矢印は、上記構成部品の組付は方向を示す。6 is an ultraviolet lamp as an example of a photocatalyst excitation light source, and 7 is an aluminum ultraviolet reflection plate, which is installed on the lower cover 1. The arrows indicate the direction of assembly of the above components.
上カバー３は第２図の如く上カバー３本体とファンカバ
ー３８とプレフィルタ−３ｂで構成されており、成形性
、組立性を向上している。矢印は。As shown in FIG. 2, the upper cover 3 is composed of the upper cover 3 main body, a fan cover 38, and a pre-filter 3b, and has improved moldability and assemblability. The arrow is.
ファンカバー３８とプレフィルタ−３ｂの組付は方向を
示す。The direction of assembly of the fan cover 38 and pre-filter 3b is shown.
脱臭装置内の空気の流れは第３図の矢印の如くなり、送
風ファン４をファンモータ８で回転させ。The air flow inside the deodorizing device is as shown by the arrow in FIG. 3, and the blower fan 4 is rotated by the fan motor 8.
ることにより、上カバー３の空気吸込口３ｃよリプレフ
ィルター３ｂを通して空気を吸込み、吸込み空気中の比
較的大きなゴミを除去した後脱臭剤５を通過して脱臭さ
れ、ファンカバー３８を通して排出される。送風ファン
４は吐出型であるので空気吸込口３Ｃよりの流入空気が
整流となり、押込型ファンに比較して通風抵抗を小さく
している。By doing so, air is sucked through the air suction port 3c of the upper cover 3 through the reple filter 3b, and after removing relatively large dust from the sucked air, it passes through the deodorizer 5 to be deodorized, and is discharged through the fan cover 38. . Since the blower fan 4 is a discharge type, the air flowing in from the air suction port 3C is rectified, thereby reducing ventilation resistance compared to a forced type fan.
また、送風ファン４およびファンモータ８と紫外線ラン
プ６は離して設置しているので、送風ファン４およびフ
ァンモータ８に対する熱および紫外線の影響を防止して
いる。Further, since the blower fan 4 and fan motor 8 are installed apart from the ultraviolet lamp 6, the effects of heat and ultraviolet rays on the blower fan 4 and fan motor 8 are prevented.
脱臭剤５は第４図〜第５図の如く１例えばアナターゼ型
の二酸化チタン系の光触媒層５ａを表面に形成したハニ
カム状活性炭５ｂをスポンジ状緩衝材５ｃで包んでおり
、脱臭剤の衝撃に対する破損防ｒＬを図っている。光触
媒Ｍ５ａは例えばゾル状に形成された粒径約５０ｎｍの
二酸化チタン系の溶液中にハニカム状活性炭５を浸漬し
、ついで、乾燥させることにより形成することができる
。上記粒径は、ゾルを形成できる粒径であればよい。As shown in FIGS. 4 and 5, the deodorizer 5 includes a honeycomb-like activated carbon 5b having an anatase-type titanium dioxide photocatalyst layer 5a formed on its surface, wrapped in a sponge-like cushioning material 5c, which protects against the impact of the deodorizer. We are trying to prevent damage. The photocatalyst M5a can be formed, for example, by immersing the honeycomb-shaped activated carbon 5 in a titanium dioxide solution having a particle size of about 50 nm formed in the form of a sol, and then drying it. The above particle size may be any size as long as it can form a sol.
アナターゼ型二酸化チタン系の光触媒層５ａはハニカム
状活性炭５ｂの表面に第６図の如く形成されているもの
と考えられる。光触媒の粒子５ｄは第７図のように多く
の隙間をもっており、活性炭５ｂの細孔５ｅがファンデ
ルワールス力により臭気成分の吸着をする防げとなるこ
とが少ない。なお脱臭剤５は本実施例の如くハニカム形
状である必要はなく、スポンジ状、あるいは網状、繊維
状。It is thought that the anatase type titanium dioxide photocatalyst layer 5a is formed on the surface of the honeycomb-shaped activated carbon 5b as shown in FIG. 6. The photocatalyst particles 5d have many gaps as shown in FIG. 7, and the pores 5e of the activated carbon 5b are rarely prevented from adsorbing odor components due to van der Waals forces. Note that the deodorizing agent 5 does not need to be honeycomb-shaped as in this embodiment, but may be sponge-shaped, net-shaped, or fibrous.
板状、粒状等であってもよく、吸着剤の有している光触
媒に光触媒励起光が照射できる形状であれば、どのよう
な形状でもよい。It may be plate-like, granular, etc., and may have any shape as long as it can irradiate the photocatalyst excitation light onto the photocatalyst contained in the adsorbent.
第８図は光触媒励起光源を示すものであり、６は電球タ
イプの紫外線ランプとして小型化しており、ランプのソ
ケットカバー６８は陶製として紫外線による劣化を防止
している。FIG. 8 shows a photocatalytic excitation light source, in which 6 is a miniaturized light bulb type ultraviolet lamp, and the lamp socket cover 68 is made of ceramic to prevent deterioration due to ultraviolet rays.
第９図は脱臭剤５と紫外線ランプ６と紫外線用のアルミ
ニウム反射板７の位置関係を示しており。FIG. 9 shows the positional relationship between the deodorizer 5, the ultraviolet lamp 6, and the aluminum reflector plate 7 for ultraviolet light.
紫外線ランプ６を点灯し、たときに放射される紫外線を
脱臭剤５上の光触媒層５ａに効率よくあてると同時に下
カバー１、上カバー３に対して紫外線による影響を最小
限に押えている。なお、脱臭装置を冷蔵庫に設置し、た
ときに紫外線ランプ６のソケット６ａ側を紫外線ランプ
６の先端よりも高い位置とし、万一紫外線ランプに結露
した場合に水分がソケッ１−６８に流入して絶縁劣化す
ることを防１１−シている。矢印は反射板７の折曲げ方
向を示す。When the ultraviolet lamp 6 is turned on, the ultraviolet rays emitted are efficiently applied to the photocatalyst layer 5a on the deodorizer 5, and at the same time, the influence of the ultraviolet rays on the lower cover 1 and the upper cover 3 is minimized. In addition, when installing the deodorizing device in a refrigerator, place the socket 6a side of the UV lamp 6 at a higher position than the tip of the UV lamp 6, so that if dew condenses on the UV lamp, moisture will flow into the socket 1-68. This prevents insulation from deteriorating. The arrow indicates the direction in which the reflective plate 7 is bent.
脱臭装置の制御方法を示す回路の一例は第１Ｏ図の如く
なる。即ち、脱臭装置の運転が必要な時に脱臭運転スイ
ッチｌを押してオンすることにより、制御回路１２に運
転命令が伝達され、脱臭装置が作動する。脱臭運転スイ
ッチ１１をオンすると、冷蔵庫外部に設置した脱臭運転
表示ランプ１３が点灯して、脱臭装置が作動中であるこ
とを表示する。An example of a circuit showing a method of controlling the deodorizing device is shown in FIG. 1O. That is, when the deodorizing device needs to be operated, the deodorizing operation switch 1 is pressed and turned on, whereby an operating command is transmitted to the control circuit 12 and the deodorizing device is activated. When the deodorizing operation switch 11 is turned on, a deodorizing operation indicator lamp 13 installed outside the refrigerator lights up to indicate that the deodorizing device is in operation.
脱臭装置のファンモータ８は冷蔵庫の冷凍サイクルの圧
縮機１４の運転検出器１４ａよりの信号で制御回路１２
により制御され、圧縮機１４が運転しているときにファ
ンモータスイッチ２１をオンし、ファンモータ８を運転
して冷蔵庫内の脱臭を行う。この動作により、゛ファン
モータ８の断続を行い、ファンモータ８の過熱を防止し
、長寿命とする。なお冷蔵庫の扉が開いたときは庫内フ
ァン１５が停止するようにしてあり、庫内ファン運転検
出器１５ａにより、扉の開閉を検出し、脱臭装置のファ
ンモータ８を圧縮機１４の運転に関係なく扉が開いてい
るときはオフするように制御する。この動作により冷蔵
庫扉を開けた時に冷気が庫外に放出される量を少なくす
ることができる。The fan motor 8 of the deodorizing device is controlled by the control circuit 12 using a signal from the operation detector 14a of the compressor 14 of the refrigerator's refrigeration cycle.
When the compressor 14 is operating, the fan motor switch 21 is turned on, and the fan motor 8 is operated to deodorize the inside of the refrigerator. By this operation, the fan motor 8 is turned on and off, preventing the fan motor 8 from overheating and extending its life. Note that when the door of the refrigerator is opened, the internal fan 15 is configured to stop, and the internal fan operation detector 15a detects the opening/closing of the door and controls the fan motor 8 of the deodorizing device to operate the compressor 14. It is controlled so that it turns off when the door is open regardless. This operation can reduce the amount of cold air released outside the refrigerator when the refrigerator door is opened.
紫外線ランプ６は除霜検出器１６ａにより、除霜ヒータ
１６がオンした後、除霜が終了して除霜ヒータ１６がオ
フしたことを検出し、一定時間紫外線ランプスイッチ２
２をオンして紫外線ランプ６を点灯し、同時に圧縮機１
４の運転にかかわらず、ファンモータスイッチ２１をオ
フし、ファンモータ８を停止する。従って除霜タイマー
１６ｂが脱臭装置のタイマーとしても機能しており、別
に脱臭装置用としてのタイマーを設ける必要がない。After the defrost heater 16 is turned on, the ultraviolet lamp 6 detects that the defrost is finished and the defrost heater 16 is turned off by the defrost detector 16a, and the ultraviolet lamp switch 2 is activated for a certain period of time.
2 to turn on the ultraviolet lamp 6, and at the same time turn on the compressor 1.
4, the fan motor switch 21 is turned off and the fan motor 8 is stopped. Therefore, the defrosting timer 16b also functions as a timer for the deodorizing device, and there is no need to provide a separate timer for the deodorizing device.
一定時間経過後は紫外線ランプをオフし、再度圧縮機１
４の運転、冷蔵庫扉の開閉を検出して脱臭装置の送風フ
ァンモータ８の運転を制御しながら脱臭を続行する。な
お、脱臭が不要なときは脱臭運転スイッチ１１を再度押
してオフすることにより、脱臭装置は停止し脱臭運転表
示ランプ１３は削灯する。１７は電源である。After a certain period of time, turn off the ultraviolet lamp and turn on compressor 1 again.
4, deodorization is continued while detecting the opening and closing of the refrigerator door and controlling the operation of the blower fan motor 8 of the deodorizing device. Note that when deodorization is not required, the deodorization operation switch 11 is pressed again to turn off, thereby stopping the deodorization device and turning off the deodorization operation display lamp 13. 17 is a power source.
本実施例において、通常は送風ファン４の送風により脱
臭剤５に冷蔵庫中の空気を通して脱臭剤の吸着により脱
臭しているが、送風ファン４を止め、紫外線ランプ６が
点灯すると下記の如き吸着剤のクリーニングを行う。即
ち、脱臭剤５のハニカム状活性炭５ｂに吸着された臭気
成分は紫外線ランプ６の紫外線とともに発する熱により
、徐々に表面に浮き出してくる。この時１表面の光触媒
層５ａは紫外線の照射を受けて励起状態となっている。In this embodiment, normally the air in the refrigerator is passed through the deodorizer 5 by the air blower from the blower fan 4, and the deodorization is done by adsorption of the deodorizer. However, when the blower fan 4 is stopped and the ultraviolet lamp 6 is turned on, the following adsorbent is removed. Perform cleaning. That is, the odor components adsorbed on the honeycomb activated carbon 5b of the deodorizer 5 gradually rise to the surface due to the heat emitted along with the ultraviolet light from the ultraviolet lamp 6. At this time, the photocatalyst layer 5a on the first surface is irradiated with ultraviolet light and is in an excited state.
−例として二酸化チタン系であれば約４２０ ｎ ｍ以
下の波長の光、主に紫外線を受けることにより価電子帯
の電子が伝導帯に移り、価電子帯には正孔が生じる。こ
の二極分化した状態が化学反応を誘引し、ハニカム状活
性炭５ｂから浮き出してきた臭気成分を分解することに
なる。例えば。- For example, in the case of titanium dioxide, upon exposure to light with a wavelength of about 420 nm or less, mainly ultraviolet rays, electrons in the valence band move to the conduction band, and holes are generated in the valence band. This polarized state induces a chemical reaction to decompose the odor components floating out from the honeycomb-shaped activated carbon 5b. for example.
光触媒層５ａの表面に存在する水酸基ＯＨ−は上記の正
孔によりＯＨラジカルとなり、これが活性種となって臭
気成分を分解することになり、臭気成分を低分子化して
臭気を少なくし、吸着剤であるハニカム状活性炭５ｂに
吸着されにくい形として除去することができる。なお、
上記の如く紫外線ランプ６点灯時に送風ファンモータ８
を停止することによりハニカム状活性炭５ｂより浮き出
してくる臭気成分を逃さずに光触媒層５ａと効率よく接
触させることができる。また紫外線ランプ６の熱を送風
ファンモータ８を停止することにより効率よく伝えるこ
とができ、ハニカム状活性炭５ｂからの臭気成分の浮き
出しをスムーズにする。The hydroxyl group OH- present on the surface of the photocatalyst layer 5a becomes an OH radical due to the above-mentioned holes, which becomes an active species and decomposes the odor component, reducing the odor component to a low molecular weight and reducing the odor, and the adsorbent It can be removed in a form that is difficult to be adsorbed by the honeycomb-shaped activated carbon 5b. In addition,
As mentioned above, when the ultraviolet lamp 6 is lit, the blower fan motor 8
By stopping the operation, the odor components floating out from the honeycomb-shaped activated carbon 5b can be efficiently brought into contact with the photocatalyst layer 5a without escaping. In addition, the heat of the ultraviolet lamp 6 can be efficiently transmitted by stopping the blower fan motor 8, and odor components can be smoothly lifted out from the honeycomb-shaped activated carbon 5b.
さらにハニカム状活性炭５ｂの表面近傍の臭気成分濃度
が低下すると、内部からは臭気成分が拡散によっても表
面に浮き出してくるので、ハニカム状活性炭５ｂのクリ
ーニングはスムーズに行うことが出来る。紫外線ランプ
６を点灯してクリーニングを行う時間はハニカム状活性
炭５ｂが除霜から次の除霜までの間に吸着した物質を分
解できる時間でよい。Further, when the concentration of odor components near the surface of the honeycomb-shaped activated carbon 5b decreases, the odor components from inside come to the surface by diffusion, so that the honeycomb-shaped activated carbon 5b can be cleaned smoothly. The time for cleaning by lighting the ultraviolet lamp 6 may be a time that allows the honeycomb-shaped activated carbon 5b to decompose the substances adsorbed between one defrosting and the next defrosting.
脱臭装置の冷蔵庫への組付けの一例は第１１図の如く、
下カバー１と中しきり２でゴム座５０を介してファンモ
ータ８を押えた後、止めねじ４２と第１図に示している
下カバー１の爪受け５１に中しきり２の爪５２を引っか
けて固定した後、下カバー１の外側に設置した爪３１を
冷蔵庫の庫内奥壁面３０に設けた爪受け３２に引っかけ
、中しきり２と下カバー１を止めねじ４１で冷蔵庫内奥
壁面３０に固定する。次に脱臭剤５．送風ファン４を中
しきり２．ファンモータ８に取付は後、上カバー３を下
カッ、＜−１に取付け、止めねじ４３と爪３３で固定す
る。次にファンカバー３８を爪３４で上カバー３に固定
し、プレフィルタ−３ｂを上カバー１に挿入することに
より組付けが完成する。矢印は、上記構成部品の組付は
方向を示す。An example of how a deodorizing device is assembled into a refrigerator is shown in Figure 11.
After holding down the fan motor 8 with the lower cover 1 and the middle partition 2 via the rubber seat 50, hook the claw 52 of the middle partition 2 onto the setscrew 42 and the claw receiver 51 of the lower cover 1 shown in FIG. After fixing, hook the claw 31 installed on the outside of the lower cover 1 into the claw receiver 32 provided on the inner back wall 30 of the refrigerator, and fix the middle partition 2 and the lower cover 1 to the inner inner wall 30 of the refrigerator with set screws 41. do. Next, deodorizer 5. Set the blower fan 4 to the middle 2. After attaching to the fan motor 8, attach the upper cover 3 to the lower cup <-1 and fix it with the setscrews 43 and claws 33. Next, the fan cover 38 is fixed to the upper cover 3 with the claws 34, and the pre-filter 3b is inserted into the upper cover 1, thereby completing the assembly. The arrows indicate the direction of assembly of the above components.
第１２図において１００は本実施例の脱臭装置の組付位
置の一例を示すものであり、冷蔵庫６０の冷蔵室６２の
庫内奥壁面３０の上部に設置する。In FIG. 12, reference numeral 100 indicates an example of the assembly position of the deodorizing device of this embodiment, which is installed at the upper part of the back wall surface 30 of the refrigerator compartment 62 of the refrigerator 60.
これにより、脱臭装置１００による脱臭空気の流れは第
１２図中の実線の矢印の如くなる。また冷蔵庫６０の庫
内ファン１５による冷気の流れは第１２図中の破線の如
くなり、冷蔵室６２で脱臭装置１００により脱臭された
冷気が庫内を循環するので冷蔵庫６０の全体が脱臭され
ることになる。As a result, the flow of deodorized air by the deodorizing device 100 is as shown by the solid arrow in FIG. 12. Furthermore, the flow of cold air by the internal fan 15 of the refrigerator 60 is as shown by the broken line in FIG. 12, and the cold air deodorized by the deodorizing device 100 in the refrigerator compartment 62 circulates within the refrigerator, so that the entire refrigerator 60 is deodorized. It turns out.
なお第１２図において脱臭袋［１００の近傍で冷蔵庫内
冷気と脱臭空気の向きが一致していないが、第１２図の
奥行き方向において空気の流れが離れているので互いに
干渉することは少ない。Note that in FIG. 12, the directions of the cold air inside the refrigerator and the deodorized air do not match in the vicinity of the deodorizing bag [100], but since the air flows are separated in the depth direction in FIG. 12, they rarely interfere with each other.
以上述べたように本実施例を用いることにより冷蔵庫に
生じた臭気成分は吸着剤であるハニカム状活性炭５ｂに
吸着されて脱臭され、かつ、紫外線ランプ６と光触媒層
５ａにより吸着剤であるハニカム状活性炭５ｂをクリー
ニングすることにより脱臭効果を長期間にわたり、良好
に保持することができる。As described above, by using this embodiment, the odor components generated in the refrigerator are adsorbed and deodorized by the honeycomb-shaped activated carbon 5b, which is an adsorbent, and the honeycomb-shaped activated carbon, which is an adsorbent, is deodorized by the ultraviolet lamp 6 and the photocatalyst layer 5a. By cleaning the activated carbon 5b, the deodorizing effect can be maintained well for a long period of time.
なお、本実施例においては脱臭装置１００に独立して送
風ファン４を設置しているが、第１３図の如く、庫内フ
ァン１５の送風を利用して破線の円で囲んだ脱臭装置１
００を構成してもよい。第１３図の冷蔵庫６０において
、冷却器６５で生成された冷気は庫内ファン１５により
第１３図の矢印の如く庫内を循環する。脱臭装置１００
は冷凍室６１と冷蔵室６２を区画する庫内中し２きり６
３中の冷気通路６４中に設置することにより、脱臭装置
ｉ！１００内は強制的に通風することになり、独立して
送風ファンを用いる必要はなくなる。脱臭袋［１００の
構成は光触媒励起光源として紫外線ランプ６を中央にし
て、その周辺部に吸着剤としてハニカム状活性炭５ｂ、
繊維状活性炭５５を配置し、それぞれの表面に光触媒層
５ａが形成しである。５６．５７は空気流入の出入口に
設けた紫外線用の遮光板である。光触媒励起光源である
紫外線ランプ６を点灯せず１通風のみを行った場合は吸
着剤である各活性炭５ｂ、５５により臭気成分は吸着さ
れて脱臭されることになる。紫外線うンブ６を点灯する
と光触媒層５ａが励起状態となり、前記の如く臭気成分
の分解作用を生じ、各活性炭５ｂ、５５をクリーニング
する。なお、通風したまま紫外線ランプ６を点灯すると
、吸着剤のクリーニングと併わせで流入空気中の臭気成
分も同時に分解することになる。In this embodiment, the blower fan 4 is installed independently in the deodorizing device 100, but as shown in FIG.
00 may be configured. In the refrigerator 60 shown in FIG. 13, cold air generated by the cooler 65 is circulated within the refrigerator by the internal fan 15 as shown by the arrow in FIG. Deodorizing device 100
6 is the inside of the refrigerator that partitions the freezer compartment 61 and the refrigerator compartment 62.
By installing it in the cold air passage 64 in 3, the deodorizing device i! 100 will be forcibly ventilated, and there will be no need to use an independent ventilation fan. The configuration of the deodorizing bag [100] includes an ultraviolet lamp 6 as a photocatalyst excitation light source in the center, and honeycomb-shaped activated carbon 5b as an adsorbent around the ultraviolet lamp 6 as an adsorbent.
Fibrous activated carbon 55 is arranged, and a photocatalyst layer 5a is formed on each surface. Reference numerals 56 and 57 indicate ultraviolet light shielding plates provided at the air inlet and outlet. When only one ventilation is performed without lighting the ultraviolet lamp 6, which is a photocatalyst excitation light source, odor components are adsorbed and deodorized by the activated carbons 5b and 55, which are adsorbents. When the ultraviolet ray chamber 6 is turned on, the photocatalyst layer 5a becomes excited and decomposes the odor components as described above, thereby cleaning each of the activated carbons 5b and 55. Incidentally, if the ultraviolet lamp 6 is turned on with ventilation in place, the odor components in the incoming air will be decomposed at the same time as cleaning the adsorbent.
本発明によれば、脱臭効果を長期間にわたり良好に保持
する冷蔵庫用脱臭装置を提供することができる。According to the present invention, it is possible to provide a deodorizing device for a refrigerator that maintains a good deodorizing effect over a long period of time.
第１図は本発明の冷蔵庫用脱臭装置の一実施例を示す組
立構造斜視図、第２図は上カバーの組立構造斜視図、第
３図は脱臭装置内の空気の流れを示す脱臭装置の縦断面
図、第４図は脱臭剤の斜視図、第５図は脱臭剤の要部断
面斜視図、第６図は脱臭剤表面の拡大断面図、第７図は
光触媒粒子の拡大断面図、第８図は光触媒励起光源の斜
視図、第９図はアルミニウム反射板と光触媒励起光源と
脱臭剤の位置関係を示す斜視図、第１０図は脱臭装置の
制御回路図、第１１図は冷蔵庫への脱臭装置の組付状態
を説明する断面図、第１２図は脱臭装置の組付位置を示
す冷蔵庫の縦断面図、第１３図は他の実施例における脱
臭装置の構成を示す冷蔵庫の縦断面図である。
ｌ・・・下カバー、２・・・中しきり、３・・・上カバ
ー、３ａ・・・ファンカバー、３ｂ・・・プレフィルタ
−１３ｃ・・・空気吸入口、４・・・送風ファン、５・
・・脱臭剤。
５ａ・・・光触媒層、５ｂ・・・ハニカム状活性炭。
５ｃ・・・スポンジ状緩衝材、５ｄ・・・光触媒粒子。
５ｅ・・・活性炭細孔、６・・・紫外線ランプ、６ａ・
・・ソケットカバー、７・・・アルミニウム反射板、８
・・・ファンモータ、１１・・・脱臭運転スイッチ、１
２・・・制御回路、１３・・・脱臭運転表示ランプ、１
４・・・圧縮機、１４ａ・・・圧縮機運転検出器、１５
・・・庫内ファン、１５ａ・・・庫内ファン運転検出器
、１６・・・除霜ヒータ、１６ａ・・・除霜検出器、１
６ｂ・・・除霜タイマー、１７・・・電源、２１・・・
ファンモータスイッチ、２２・・・ランプスイッチ、３
０・・・冷蔵庫内奥９面。
３１・・・爪、３２・・・爪受け、３３・・・爪、３４
・・・爪。
４１・・・止めねじ、４２・・・止めねじ、４３・・・
止めねじ、５０・・・ゴム座、５１・・・爪受け、５２
・・・爪。
５５・・・繊維状活性炭、５６・・・遮光板、５７・・
・遮光板、６０・・・冷蔵庫、６１・・・冷凍室、６２
・・・冷蔵室。
６３・・・庫内中しきり、６４・・・冷気通路、６５・
・・冷却器、７０・・・食品トレイ、１００・・・脱臭
装置。Fig. 1 is a perspective view of the assembled structure of an embodiment of the deodorizing device for a refrigerator according to the present invention, Fig. 2 is a perspective view of the assembled structure of the upper cover, and Fig. 3 is a perspective view of the deodorizing device showing the flow of air inside the deodorizing device. A longitudinal sectional view, FIG. 4 is a perspective view of the deodorizer, FIG. 5 is a cross-sectional perspective view of the main part of the deodorizer, FIG. 6 is an enlarged sectional view of the surface of the deodorizer, and FIG. 7 is an enlarged sectional view of photocatalyst particles. Figure 8 is a perspective view of the photocatalyst excitation light source, Figure 9 is a perspective view showing the positional relationship between the aluminum reflector, the photocatalyst excitation light source, and the deodorizer, Figure 10 is a control circuit diagram of the deodorization device, and Figure 11 is the refrigerator. 12 is a longitudinal sectional view of the refrigerator showing the assembly position of the deodorizing device, and FIG. 13 is a longitudinal sectional view of the refrigerator showing the configuration of the deodorizing device in another embodiment. It is a diagram. l...Lower cover, 2...Middle partition, 3...Upper cover, 3a...Fan cover, 3b...Prefilter-13c...Air intake port, 4...Blower fan, 5.
・・Deodorant. 5a... Photocatalyst layer, 5b... Honeycomb-shaped activated carbon. 5c... Sponge-like buffer material, 5d... Photocatalyst particles. 5e...Activated carbon pores, 6...Ultraviolet lamp, 6a.
...Socket cover, 7...Aluminum reflector, 8
...Fan motor, 11...Deodorizing operation switch, 1
2... Control circuit, 13... Deodorizing operation display lamp, 1
4...Compressor, 14a...Compressor operation detector, 15
...Internal fan, 15a...Internal fan operation detector, 16...Defrost heater, 16a...Defrost detector, 1
6b... Defrost timer, 17... Power supply, 21...
Fan motor switch, 22...Lamp switch, 3
0...9th side in the back of the refrigerator. 31...Claw, 32...Claw holder, 33...Claw, 34
···nail. 41... Set screw, 42... Set screw, 43...
Set screw, 50...Rubber seat, 51...Claw holder, 52
···nail. 55... Fibrous activated carbon, 56... Light shielding plate, 57...
・Light shielding plate, 60... Refrigerator, 61... Freezer compartment, 62
...refrigeration room. 63... Inside the refrigerator, 64... Cold air passage, 65.
...Cooler, 70...Food tray, 100...Deodorizing device.
Claims (1)
冷蔵庫用脱臭装置において、臭気成分を吸着する吸着剤
の表面に形成された光によって励起する光触媒層、また
は吸着剤中に練り込まれた光触媒、若しくは吸着剤とな
りうる光触媒と、前記吸着剤の有する光触媒を励起する
光源とを備えたことを特徴とする冷蔵庫用脱臭装置。 ２、前記光触媒を有する吸着剤が、ハニカム状、スポン
ジ状、あるいは網状、繊維状、板状、粒状である特許請
求の範囲第１項記載の冷蔵庫用脱臭装置。 ３、光触媒を有する吸着剤がハニカム状に形成された活
性炭であり、表面に二酸化チタン系の光触媒層を形成し
た特許請求の範囲第１項記載の冷蔵庫用脱臭装置。 ４、前記光触媒励起光源が電球型の紫外線ランプであり
、ランプソケットのカバーが陶製である特許請求の範囲
第１項記載の冷蔵庫用脱臭装置。 ５、光触媒励起光源の廻りをアルミニウム製の板で囲み
、光触媒を有する吸着剤側のみ、アルミニウム製の板が
開口している特許請求の範囲第１項記載の冷蔵庫用脱臭
装置。 ６、プラスチック、あるいは金属板で通風路を形成し、
通風順序が光触媒励起光源、光触媒を有する吸着剤、吐
出型の送風ファンの順である特許請求の範囲第１項記載
の冷蔵庫用脱臭装置。 ７、脱臭装置の送風ファンの運転は冷蔵庫の冷凍サイク
ル圧縮機の運転に同期して運転し、かつ冷蔵庫の扉が開
いているときは圧縮機の運転にかかわらず送風ファンは
停止する特許請求の範囲第１項記載の冷蔵庫用脱臭装置
。 ８、紫外線励起光源は冷蔵庫の除霜が終了した直後一定
時間点灯し、同時に脱臭装置の送風ファンは、光源点灯
中は停止する特許請求の範囲第１項記載の冷蔵庫用脱臭
装置。[Claims] 1. In a refrigerator deodorizing device installed and used in a refrigerator for storing and preserving foods, etc., a photocatalytic layer excited by light formed on the surface of an adsorbent that adsorbs odor components or an adsorbent. A deodorizing device for a refrigerator, comprising a photocatalyst kneaded into an agent or a photocatalyst that can serve as an adsorbent, and a light source that excites the photocatalyst included in the adsorbent. 2. The deodorizing device for a refrigerator according to claim 1, wherein the adsorbent having the photocatalyst has a honeycomb shape, a sponge shape, a net shape, a fiber shape, a plate shape, or a granule shape. 3. The deodorizing device for a refrigerator according to claim 1, wherein the adsorbent having a photocatalyst is activated carbon formed in a honeycomb shape, and a titanium dioxide-based photocatalyst layer is formed on the surface. 4. The deodorizing device for a refrigerator according to claim 1, wherein the photocatalyst excitation light source is a light bulb type ultraviolet lamp, and the cover of the lamp socket is made of ceramic. 5. The deodorizing device for a refrigerator according to claim 1, wherein the photocatalyst excitation light source is surrounded by an aluminum plate, and the aluminum plate is open only on the side of the adsorbent having the photocatalyst. 6. Form ventilation channels with plastic or metal plates,
The deodorizing device for a refrigerator according to claim 1, wherein the ventilation order is a photocatalyst excitation light source, an adsorbent having a photocatalyst, and a discharge type blower fan. 7. The blower fan of the deodorizing device operates in synchronization with the operation of the refrigerator's refrigeration cycle compressor, and when the door of the refrigerator is open, the blower fan stops regardless of the operation of the compressor. A deodorizing device for a refrigerator according to scope 1. 8. The deodorizing device for a refrigerator according to claim 1, wherein the ultraviolet excitation light source is turned on for a certain period of time immediately after defrosting the refrigerator, and at the same time, the blower fan of the deodorizing device is stopped while the light source is turned on.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63010601A JPH01189321A (en) | 1988-01-22 | 1988-01-22 | Deodorizer for refrigerator |
| EP89100265A EP0325133B1 (en) | 1988-01-22 | 1989-01-09 | Apparatus for removing unpleasant odours |
| EP19910120358 EP0476724A3 (en) | 1988-01-22 | 1989-01-09 | Apparatus for removing stink |
| ES198989100265T ES2037881T3 (en) | 1988-01-22 | 1989-01-09 | DEVICE TO ELIMINATE UNPLEASANT ODOR. |
| DE8989100265T DE68904311T2 (en) | 1988-01-22 | 1989-01-09 | DEVICE FOR REMOVING UNPLEASANT ODORS. |
| US07/295,754 US4954465A (en) | 1988-01-22 | 1989-01-11 | Apparatus for removing stink |
| KR1019890000436A KR910002360B1 (en) | 1988-01-22 | 1989-01-17 | Deodorizing apparatus |
| CN89100966A CN1018616B (en) | 1988-01-22 | 1989-01-21 | Deodorization utensil |
| US07/461,928 US4955208A (en) | 1988-01-22 | 1990-01-08 | Refrigerating apparatus having a stink removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63010601A JPH01189321A (en) | 1988-01-22 | 1988-01-22 | Deodorizer for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01189321A true JPH01189321A (en) | 1989-07-28 |
Family
ID=11754768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63010601A Pending JPH01189321A (en) | 1988-01-22 | 1988-01-22 | Deodorizer for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01189321A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148719U (en) * | 1988-03-31 | 1989-10-16 | ||
| JPH0394814A (en) * | 1989-09-04 | 1991-04-19 | Matsushita Electric Ind Co Ltd | Deodorizing method with photocatalyst |
| JPH03106420A (en) * | 1989-09-20 | 1991-05-07 | Matsushita Electric Ind Co Ltd | Deodorizing method for photo-catalyst |
| JPH0386028U (en) * | 1989-12-19 | 1991-08-30 | ||
| US5183656A (en) * | 1990-08-03 | 1993-02-02 | Mitsubishi Denki Kabushiki Kaisha | Deodorant and product in which the deodorant is used |
| JPH09196399A (en) * | 1996-01-22 | 1997-07-29 | Toshiba Corp | Air conditioner |
| JPH11216365A (en) * | 1997-10-20 | 1999-08-10 | Tao:Kk | Photocatalyst, photocatalyst device and housing apparatus |
| JP2002292228A (en) * | 2001-03-30 | 2002-10-08 | Equos Research Co Ltd | Honeycomb filter holding structure |
| JP2010164284A (en) * | 2009-01-19 | 2010-07-29 | Toshiba Corp | Refrigerator |
| JP2017023897A (en) * | 2015-07-16 | 2017-02-02 | 株式会社フジコー | Deodorization device |
| CN113069915A (en) * | 2020-01-03 | 2021-07-06 | 湖南巨高屾科技发展有限公司 | Multifunctional deodorant for treating odor of farm |
-
1988
- 1988-01-22 JP JP63010601A patent/JPH01189321A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148719U (en) * | 1988-03-31 | 1989-10-16 | ||
| JPH0394814A (en) * | 1989-09-04 | 1991-04-19 | Matsushita Electric Ind Co Ltd | Deodorizing method with photocatalyst |
| JPH07114925B2 (en) * | 1989-09-04 | 1995-12-13 | 松下電器産業株式会社 | Photocatalytic deodorization method |
| JPH03106420A (en) * | 1989-09-20 | 1991-05-07 | Matsushita Electric Ind Co Ltd | Deodorizing method for photo-catalyst |
| JPH0386028U (en) * | 1989-12-19 | 1991-08-30 | ||
| US5183656A (en) * | 1990-08-03 | 1993-02-02 | Mitsubishi Denki Kabushiki Kaisha | Deodorant and product in which the deodorant is used |
| JPH09196399A (en) * | 1996-01-22 | 1997-07-29 | Toshiba Corp | Air conditioner |
| JPH11216365A (en) * | 1997-10-20 | 1999-08-10 | Tao:Kk | Photocatalyst, photocatalyst device and housing apparatus |
| JP2002292228A (en) * | 2001-03-30 | 2002-10-08 | Equos Research Co Ltd | Honeycomb filter holding structure |
| JP2010164284A (en) * | 2009-01-19 | 2010-07-29 | Toshiba Corp | Refrigerator |
| JP2017023897A (en) * | 2015-07-16 | 2017-02-02 | 株式会社フジコー | Deodorization device |
| CN113069915A (en) * | 2020-01-03 | 2021-07-06 | 湖南巨高屾科技发展有限公司 | Multifunctional deodorant for treating odor of farm |
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