JP2003287356A - Ice making device of refrigerator - Google Patents
Ice making device of refrigeratorInfo
- Publication number
- JP2003287356A JP2003287356A JP2002092055A JP2002092055A JP2003287356A JP 2003287356 A JP2003287356 A JP 2003287356A JP 2002092055 A JP2002092055 A JP 2002092055A JP 2002092055 A JP2002092055 A JP 2002092055A JP 2003287356 A JP2003287356 A JP 2003287356A
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- supply pipe
- water
- ice
- supply tank
- 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
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷蔵庫の製氷装置
に係り、特に光触媒と紫外線とを用いて製氷の脱臭・殺
菌ができるようにした冷蔵庫の製氷装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making device for a refrigerator, and more particularly to an ice making device for a refrigerator capable of deodorizing and sterilizing ice making using a photocatalyst and ultraviolet rays.
【０００２】[0002]
【従来の技術】従来、冷蔵庫（又は冷凍冷蔵庫）に組み
込まれる製氷装置が知られている。特に自動製氷装置
は、例えば図６に示すように給水タンク１と、製氷皿２
と、給水タンク１から製氷皿２に適量の水を供給するた
めの給水管３と、製氷皿２で製氷された氷を収納する貯
氷箱４等から構成されている。2. Description of the Related Art Conventionally, an ice making device incorporated in a refrigerator (or a refrigerator-freezer) is known. In particular, the automatic ice making device has a water supply tank 1 and an ice tray 2 as shown in FIG. 6, for example.
A water supply pipe 3 for supplying an appropriate amount of water from the water supply tank 1 to the ice tray 2, an ice storage box 4 for storing the ice made by the ice tray 2, and the like.
【０００３】上記の製氷装置において、給水タンク１か
らポンプ１ａにより水が適量吸い上げられて給水管３を
介して製氷皿２に供給される。そして、製氷皿２の上面
に沿って冷気が流れることで水が冷やされて製氷され
る。製氷皿２は脱氷機構５により反転するように構成さ
れており、製氷後に反転と同時に製氷皿２にねじり動作
が加えられることで製氷皿２から脱氷し、貯氷箱４に氷
を落下させる（例えば、特開２００１−４１６２０参
照）。In the above ice making device, an appropriate amount of water is sucked up from the water supply tank 1 by the pump 1a and supplied to the ice tray 2 through the water supply pipe 3. Then, cold air flows along the upper surface of the ice tray 2 to cool the water and make ice. The ice tray 2 is configured to be inverted by the ice removing mechanism 5, and after the ice tray 2 is inverted, a twisting operation is simultaneously applied to the ice tray 2 to remove the ice from the ice tray 2 and drop the ice in the ice storage box 4. (See, for example, JP 2001-41620 A).
【０００４】ところで、冷蔵庫の製氷室には庫内の冷気
が流れるために、冷気中に含まれる臭気成分に起因して
製氷室を開けた際に臭気が漂うことがある。このような
不快な臭気を防止するために、製氷室を脱臭する提案が
なされている（例えば、特開２０００−２４９４６
０）。これは光触媒による脱臭効果を利用したもので、
製氷室内に設ける光照射管の周囲の一部又は全周に、光
触媒又は光触媒と吸着材との混合物を塗着した構成とな
っている。By the way, since cold air in the refrigerator flows into the ice-making chamber of the refrigerator, an odor may drift when the ice-making chamber is opened due to the odorous components contained in the cold air. In order to prevent such an unpleasant odor, a proposal has been made to deodorize the ice making chamber (for example, JP 2000-24946 A).
0). This uses the deodorizing effect of the photocatalyst,
A photocatalyst or a mixture of a photocatalyst and an adsorbent is applied to a part or the whole circumference of a light irradiation tube provided in the ice making chamber.
【０００５】又、製氷室を流れる冷気中には雑菌が含ま
れていることがあり、この雑菌が製氷皿に付着すると製
氷中に雑菌が混入する恐れがある。上記の光照射管とし
てブラックライトを使用すれば、その紫外線によって殺
菌や防カビ効果も期待できることが開示されている。Further, the cold air flowing through the ice-making chamber may contain various bacteria, and if these bacteria adhere to the ice-making tray, the bacteria may be mixed in the ice-making. It is disclosed that if a black light is used as the above-mentioned light irradiation tube, sterilization and antifungal effects can be expected by the ultraviolet rays.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
従来装置では、製氷室を流れる冷気の脱臭・殺菌をする
に留まり、給水タンク１から給水管３を経て製氷皿２に
供給される水に関しては脱臭・殺菌することはできな
い。通常、給水タンク１には水道水が補給されるため、
消毒液等の特有の臭素成分が含まれており、又給水タン
ク１内や給水管３の内部に雑菌等が付着していると、製
氷皿２に供給される水中に雑菌等が混入することが考え
られる。このため、製氷皿２に供給する水に関しても脱
臭・殺菌することが要求される。However, in the above-mentioned conventional apparatus, the water supplied to the ice tray 2 from the water supply tank 1 through the water supply pipe 3 is limited to deodorizing and sterilizing the cold air flowing through the ice making chamber. It cannot be deodorized or sterilized. Normally, tap water is supplied to the water tank 1,
If a specific bromine component such as an antiseptic solution is contained, and if bacteria etc. adhere to the inside of the water supply tank 1 or the water supply pipe 3, the bacteria etc. may enter the water supplied to the ice tray 2. Can be considered. Therefore, the water supplied to the ice tray 2 is also required to be deodorized and sterilized.
【０００７】本発明は、このような要求を満足すべくな
されたもので、その目的は給水タンクから製氷皿に供給
される水の脱臭・殺菌を行えるようにした冷蔵庫の製氷
装置を提供することである。The present invention has been made to satisfy the above-mentioned requirements, and an object thereof is to provide an ice making device for a refrigerator capable of deodorizing and sterilizing water supplied from a water supply tank to an ice making tray. Is.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１の発明は、冷蔵庫に組み込まれる製氷装
置において、給水タンクと、製氷皿と、給水タンクから
製氷皿に適量の水を供給する給水管とを備え、前記給水
管を紫外線が通過する部材で成すと共にこの給水管の内
面に光触媒層を設け、この光触媒層に前記給水管の外側
から紫外線を照射する紫外線ランプを前記給水管の近傍
に配置したことを特徴とする。これにより、透明の給水
管に紫外線ランプから紫外線を照射し、給水管の内面に
付着している光触媒を活性化し、給水管内を通る水の脱
臭・殺菌を行うことができる。In order to achieve the above object, the invention of claim 1 is an ice making device incorporated in a refrigerator, wherein a water supply tank, an ice tray, and an appropriate amount of water from the water supply tank to the ice tray are provided. And a photocatalyst layer is provided on the inner surface of the water supply pipe, and the photocatalyst layer is provided with an ultraviolet lamp for irradiating ultraviolet rays from the outside of the water supply pipe. It is characterized in that it is placed near the water supply pipe. This makes it possible to irradiate the transparent water supply pipe with ultraviolet rays from the ultraviolet lamp, activate the photocatalyst adhering to the inner surface of the water supply pipe, and deodorize and sterilize the water passing through the water supply pipe.
【０００９】又、請求項２の発明は、冷蔵庫に組み込ま
れる製氷装置において、給水タンクと、製氷皿と、給水
タンクから製氷皿に適量の水を供給する給水管とを備
え、前記給水タンクを紫外線が通過する部材で成すと共
にこの給水タンクの内面に光触媒層を設け、この光触媒
層に前記給水タンクの外側から紫外線を照射する紫外線
ランプを前記給水タンクの近傍に配置したことを特徴と
する。これにより、透明の給水タンクに紫外線ランプか
ら紫外線を照射し、給水タンクの内面に付着している光
触媒を活性化し、給水タンク内に収納されている水の脱
臭・殺菌を行うことができる。According to a second aspect of the present invention, in an ice making device incorporated in a refrigerator, the water supply tank, an ice tray, and a water supply pipe for supplying an appropriate amount of water from the water tank to the ice tray are provided. It is characterized in that it is made of a member through which ultraviolet rays pass, and a photocatalyst layer is provided on the inner surface of the water supply tank, and an ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays from the outside of the water supply tank is arranged in the vicinity of the water supply tank. This makes it possible to irradiate the transparent water supply tank with ultraviolet rays from the ultraviolet lamp to activate the photocatalyst adhering to the inner surface of the water supply tank and to deodorize and sterilize the water contained in the water supply tank.
【００１０】更に、請求項３の発明は、冷蔵庫に組み込
まれる製氷装置において、給水タンクと、製氷皿と、給
水タンクから製氷皿に適量の水を供給する給水管とを備
え、前記給水管を紫外線が通過する部材で成すと共にこ
の給水管の内面に光触媒層を設け、この光触媒層に紫外
線を照射する第１の紫外線ランプを給水管の近傍に配置
し、且つ前記給水タンクを紫外線が通過する部材で成す
と共にこの給水タンクの内面に光触媒層を設け、この光
触媒層に紫外線を照射する第２の紫外線ランプを前記給
水タンクの近傍に配置したことを特徴とする。これによ
り、透明の給水管及び給水タンクを第１、第２の紫外線
ランプからの紫外線をそれぞれ照射し、給水管及び給水
タンクの内面に付着する光触媒をそれぞれ活性化するこ
とにより、給水管を通る水及び給水タンク内に収納され
ている水の脱臭・殺菌を行うことができる。Further, according to the invention of claim 3, in an ice making device incorporated in a refrigerator, a water supply tank, an ice tray, and a water supply pipe for supplying an appropriate amount of water from the water supply tank to the ice tray are provided. The photocatalyst layer is provided on the inner surface of the water supply pipe, and the first ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays is arranged in the vicinity of the water supply pipe, and the ultraviolet light passes through the water supply tank. The water supply tank is characterized in that a photocatalyst layer is provided on the inner surface of the water supply tank, and a second ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays is arranged in the vicinity of the water supply tank. As a result, the transparent water supply pipe and the water supply tank are irradiated with the ultraviolet rays from the first and second ultraviolet lamps, respectively, and the photocatalysts adhering to the inner surfaces of the water supply pipe and the water supply tank are activated to pass through the water supply pipe. It is possible to deodorize and sterilize the water and the water stored in the water supply tank.
【００１１】又、請求項４の発明は、前記第１の紫外線
ランプと、第２の紫外線ランプとを１つの紫外線ランプ
で共用することを特徴とする。これにより、紫外線ラン
プは１つで済むため、消費電力の節約が図れる。Further, the invention of claim 4 is characterized in that the first ultraviolet lamp and the second ultraviolet lamp are shared by one ultraviolet lamp. As a result, only one ultraviolet lamp is required, and power consumption can be saved.
【００１２】[0012]
【発明の実施の形態】次に、本発明に係る冷蔵庫の製氷
装置の実施形態について図面を参照しながら説明する。
本説明において、上記と同じ部材は上記と同じ符号を付
ける。図１は、本発明に係る製氷装置を適用した冷凍冷
蔵庫１１の正面図で、その正面の扉を取り除いた時の様
子を示す図である。この冷凍冷蔵庫１１は、外箱１２と
内箱１３とを有し、この間に断熱材１４が充填されてな
る断熱構造体で、内箱１３の内部には複数の断熱中仕切
板１５が設けられて冷蔵室１６、冷凍室１７、野菜室１
８等が形成されている。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of an ice making device for a refrigerator according to the present invention will be described with reference to the drawings.
In the present description, the same members as those described above are designated by the same reference numerals. FIG. 1 is a front view of a freezer-refrigerator 11 to which the ice making device according to the present invention is applied, and is a view showing a state when the front door is removed. This refrigerator-freezer 11 is an insulating structure having an outer box 12 and an inner box 13, and a heat insulating material 14 is filled between the outer box 12 and the inner box 13. Inside the inner box 13, a plurality of heat insulating partition plates 15 are provided. Refrigerator room 16, freezer room 17, vegetable room 1
8 etc. are formed.
【００１３】冷蔵室１６の下端部には、氷を作るための
水が貯蔵される給水タンク１が設けられ、又冷凍室１７
には製氷器１０及び貯氷箱４が設けられている。尚、貯
氷箱４は製氷器１０の下に設けられて、当該製氷器１０
からの氷を受け止めて貯氷するようになっている。At the lower end of the refrigerating compartment 16 is provided a water supply tank 1 for storing water for making ice, and a freezing compartment 17
Is provided with an ice maker 10 and an ice storage box 4. The ice storage box 4 is provided below the ice maker 10 and
It receives ice from and stores it.
【００１４】又、冷凍冷蔵庫１１の下端部等には、冷媒
を圧縮する圧縮機、冷媒を絞るキャピラリーチューブ、
ガス状態の冷媒の熱を放熱して凝縮させる凝縮器、内部
で冷媒を気化させて庫内空気を冷却する冷却器等からな
る図示しない冷凍装置が収納されて、庫内空気を強制循
環させながら庫内を冷却している。At the lower end of the refrigerator / freezer 11, a compressor for compressing the refrigerant, a capillary tube for squeezing the refrigerant,
A refrigerating device (not shown) consisting of a condenser that radiates heat of the refrigerant in a gas state to condense it and a cooler that evaporates the refrigerant inside to cool the inside air is housed, and while forcibly circulating the inside air. The inside of the refrigerator is being cooled.
【００１５】図２は、本発明に係る製氷装置の第１の実
施形態を示す概略図であり、冷蔵室１６に設けられた給
水タンク１と、冷凍室１７に設けられた製氷器１０及び
貯氷箱４を備えている。又、製氷器１０は、製氷皿２と
脱氷機構５を有し、製氷皿２には給水タンク１からポン
プ１ａにより給水管３を介して適量の水が供給されるよ
うにしてある。FIG. 2 is a schematic view showing a first embodiment of the ice making device according to the present invention, in which a water supply tank 1 provided in a refrigerating compartment 16 and an ice making device 10 and an ice storage compartment provided in a freezing compartment 17 are shown. A box 4 is provided. The ice maker 10 has an ice tray 2 and an ice removing mechanism 5, and an appropriate amount of water is supplied to the ice tray 2 from a water supply tank 1 by a pump 1a through a water supply pipe 3.
【００１６】給水管３は紫外線が通過する部材例えば透
明の合成樹脂材にて形成され、図３のようにその内面に
は光触媒層３ａが設けられている。光触媒層３ａは、ゼ
オライト等の吸着材に担持された光触媒（酸化チタン
等）と適宜のバインダーとを含み、給水管３の内面に噴
霧又は塗布手段等により形成される。例えば、ゼオライ
ト等の吸着材と、光触媒と、バインダーとの混合液に、
外周面をマスキングテープで被覆した給水管３を浸漬
し、給水管３の内面に混合液を付着した後乾燥させて光
触媒層３ａを形成することができる。The water supply pipe 3 is formed of a member through which ultraviolet rays pass, for example, a transparent synthetic resin material, and a photocatalyst layer 3a is provided on its inner surface as shown in FIG. The photocatalyst layer 3a contains a photocatalyst (titanium oxide or the like) supported on an adsorbent such as zeolite and an appropriate binder, and is formed on the inner surface of the water supply pipe 3 by spraying or coating means. For example, in a mixed liquid of an adsorbent such as zeolite, a photocatalyst, and a binder,
The photocatalyst layer 3a can be formed by immersing the water supply pipe 3 whose outer peripheral surface is covered with masking tape, adhering the mixed liquid to the inner surface of the water supply pipe 3 and then drying it.
【００１７】６は給水管３に沿ってその近傍に配設した
第１の紫外線ランプであり、給水管３に紫外線を照射し
て光触媒層３ａの光触媒を活性化できるようにしてあ
る。この場合、第１の紫外線ランプ６は、庫内の背面側
に設けたに取付部７に装着して取り付けたが、この箇所
に限定されず給水管３に対して紫外線を効率良く且つム
ラなく照射できる位置であれば他の箇所であっても構わ
ない。又、第１の紫外線ランプ６は給水管３の全長にわ
たって紫外線をほぼ均一に照射できるように平面型紫外
線ランプが使用されているが、これに限定されず球型又
は直管型の紫外線ランプであってもよい。Reference numeral 6 denotes a first ultraviolet lamp arranged along the water supply pipe 3 and in the vicinity thereof so that the water supply pipe 3 can be irradiated with ultraviolet rays to activate the photocatalyst of the photocatalyst layer 3a. In this case, the first ultraviolet lamp 6 is mounted by being mounted on the mounting portion 7 provided on the back side of the inside of the refrigerator, but the first ultraviolet lamp 6 is not limited to this location, and the ultraviolet rays can be efficiently and evenly applied to the water supply pipe 3. It may be another location as long as it can be irradiated. Further, the first ultraviolet lamp 6 is a flat type ultraviolet lamp so that ultraviolet rays can be irradiated substantially uniformly over the entire length of the water supply pipe 3, but the first ultraviolet lamp 6 is not limited to this and is a spherical or straight tube type ultraviolet lamp. It may be.
【００１８】この第１の紫外線ランプ６は、比較的短波
長例えば２５４ｎｍ近傍の紫外線を放射するようにして
あり、この程度の波長の紫外線であれば殺菌作用があ
り、紫外線によって雑菌等を殺菌することが可能であ
る。又、紫外線の波長を１８５ｎｍ近傍にすると、紫外
線だけでなくオゾンを発生させることが可能である。し
かしながら、オゾンには毒性があるため、殺菌力のある
濃度の高いオゾンを発生させると、これを無害化するた
めの機構が必要となる。発生するオゾンの濃度が５ｐｐ
ｍ以上であれば実用レベルの殺菌力を得ることができる
ので、オゾン濃度は５ｐｐｍ程度に抑えることが好まし
い。The first ultraviolet lamp 6 is designed to emit ultraviolet rays having a relatively short wavelength, for example, near 254 nm, and ultraviolet rays having such a wavelength have a sterilizing action, and sterilize germs and the like by the ultraviolet rays. It is possible. Further, when the wavelength of ultraviolet rays is around 185 nm, not only ultraviolet rays but also ozone can be generated. However, since ozone is toxic, if ozone having a high sterilizing concentration is generated, a mechanism for making the ozone harmless is required. The concentration of ozone generated is 5pp
If it is at least m, a practical level of sterilizing power can be obtained, so it is preferable to suppress the ozone concentration to about 5 ppm.
【００１９】このように構成された製氷装置において、
給水タンク１から製氷皿２に給水する際に、第１の紫外
線ランプ６を点灯して紫外線を給水管３に放射する。こ
の時、紫外線照射によって給水管３の内面の光触媒層３
ａにおける光触媒が活性化される。この活性化された光
触媒により、給水管３を通過する水の中に含まれる臭気
成分が分解される。又、照射された紫外線の殺菌作用に
よって水中に混入した雑菌等が殺菌される。その結果、
給水タンク１からの水は給水管３を通過する際に脱臭及
び殺菌されて、製氷皿２に供給されることになる。In the ice making device constructed as described above,
When water is supplied from the water tank 1 to the ice tray 2, the first ultraviolet lamp 6 is turned on to radiate ultraviolet rays to the water supply pipe 3. At this time, the photocatalyst layer 3 on the inner surface of the water supply pipe 3 is irradiated with ultraviolet rays.
The photocatalyst in a is activated. The activated photocatalyst decomposes odorous components contained in the water passing through the water supply pipe 3. In addition, germs and the like mixed in water are sterilized by the sterilizing action of the irradiated ultraviolet rays. as a result,
The water from the water supply tank 1 is deodorized and sterilized when passing through the water supply pipe 3, and is supplied to the ice tray 2.
【００２０】製氷皿２に水が適量供給されると、製氷皿
２の上面に沿って流れる冷気によって冷却され、製氷工
程がなされる。製氷後は、脱氷機構５の作動によって製
氷皿２を反転させると共に、少しねじり力が加えられて
脱氷工程がなされる。そして、製氷皿２から脱氷した製
氷は貯氷箱４に落下して貯蔵される。これにより、ほぼ
無臭・無菌の製氷が得られる。When an appropriate amount of water is supplied to the ice tray 2, the ice tray 2 is cooled by cold air flowing along the upper surface of the ice tray 2 to perform an ice making step. After ice making, the ice making tray 2 is turned over by the operation of the ice removing mechanism 5, and a little twisting force is applied to perform the ice removing process. Then, the ice making de-iced from the ice making tray 2 falls into the ice storage box 4 and is stored. As a result, almost odorless and aseptic ice making can be obtained.
【００２１】図４は、本発明に係る製氷装置の第２の実
施形態を示す概略図であり、冷蔵室１６に設けられた給
水タンク１と、冷凍室１７に設けられた製氷器１０及び
貯氷箱４を備えている。そして、製氷器１０の製氷皿２
には、給水タンク１から適量の水が給水管３を介して供
給されるようにしてある。FIG. 4 is a schematic diagram showing a second embodiment of the ice making device according to the present invention. The water supply tank 1 provided in the refrigerating compartment 16, the ice making device 10 and the ice storage compartment provided in the freezing compartment 17. A box 4 is provided. And the ice tray 2 of the ice maker 10
A suitable amount of water is supplied from the water supply tank 1 through the water supply pipe 3.
【００２２】給水タンク１は紫外線が通過する部材例え
ば透明の合成樹脂材にて形成され、図示は省略したがそ
の内面には光触媒層が設けられている。光触媒層は、ゼ
オライト等の吸着材に担持された光触媒（酸化チタン
等）と適宜のバインダーとを含み、給水タンク１の内面
に噴霧又は塗布手段等により形成される。The water supply tank 1 is formed of a member through which ultraviolet rays pass, for example, a transparent synthetic resin material, and a photocatalyst layer is provided on the inner surface of the water supply tank 1 although not shown. The photocatalyst layer includes a photocatalyst (titanium oxide or the like) supported on an adsorbent such as zeolite and an appropriate binder, and is formed on the inner surface of the water supply tank 1 by spraying or coating means.
【００２３】８は給水タンク１に沿ってその近傍に配設
した第２の紫外線ランプであり、給水タンク１に紫外線
を照射して光触媒層の光触媒を活性化できるようにして
ある。この場合、第２の紫外線ランプ８は、冷蔵室１６
の上壁に装着して取り付けたが、この位置に限定されず
給水タンク１に対して紫外線を効率良く且つムラなく照
射できる位置であれば他の箇所であっても構わない。
又、第２の紫外線ランプ８は給水タンク１の全長にわた
って紫外線をほぼ均一に照射できるように平面型紫外線
ランプが使用されているが、これに限定されず球型又は
直管型の紫外線ランプであってもよい。Reference numeral 8 denotes a second ultraviolet lamp disposed along the water supply tank 1 and in the vicinity thereof so that the water supply tank 1 can be irradiated with ultraviolet rays to activate the photocatalyst of the photocatalyst layer. In this case, the second ultraviolet lamp 8 is installed in the refrigerator compartment 16
Although it is attached to and attached to the upper wall of the water tank, it is not limited to this position, and it may be at another position as long as it can efficiently and uniformly irradiate the water supply tank 1 with ultraviolet rays.
Further, the second ultraviolet lamp 8 is a flat type ultraviolet lamp so as to irradiate ultraviolet rays substantially uniformly over the entire length of the water supply tank 1, but the second ultraviolet lamp 8 is not limited to this and may be a spherical or straight tube type ultraviolet lamp. It may be.
【００２４】この第２の紫外線ランプ８は、前記と同じ
く比較的短波長例えば２５４ｎｍ近傍の紫外線を放射す
るようにしてあり、この程度の波長の紫外線であれば殺
菌作用があり、紫外線によって雑菌等を殺菌することが
可能である。又、紫外線の波長を１８５ｎｍ近傍にする
と、紫外線だけでなくオゾンを発生させることが可能で
ある。しかしながら、オゾンには毒性があるため、殺菌
力のある濃度の高いオゾンを発生させると、これを無害
化するための機構が必要となる。発生するオゾンの濃度
が５ｐｐｍ以上であれば実用レベルの殺菌力を得ること
ができるので、オゾン濃度は５ｐｐｍ程度に抑えること
が好ましい。The second ultraviolet lamp 8 emits ultraviolet rays having a relatively short wavelength, for example, near 254 nm, as described above, and ultraviolet rays having a wavelength of this level have a bactericidal action, and the ultraviolet rays cause various germs and the like. It is possible to sterilize. Further, when the wavelength of ultraviolet rays is around 185 nm, not only ultraviolet rays but also ozone can be generated. However, since ozone is toxic, if ozone having a high sterilizing concentration is generated, a mechanism for making the ozone harmless is required. If the concentration of generated ozone is 5 ppm or more, a practical level of sterilizing power can be obtained, so it is preferable to suppress the ozone concentration to about 5 ppm.
【００２５】このように構成された製氷装置において、
給水タンク１に水道水が供給されて収納されると、第２
の紫外線ランプ８を点灯して紫外線を給水タンク１に放
射する。この時、紫外線照射によって給水タンク１の内
面の光触媒層における光触媒が活性化される。この活性
化された光触媒により、給水タンク１内に収納されてい
る水中に含まれる臭気成分が分解される。又、照射され
た紫外線の殺菌作用によって水中に混入した雑菌等が殺
菌される。その結果、給水タンク１中の水は脱臭及び殺
菌されて、製氷皿２に供給されることになる。In the ice making device constructed as described above,
When tap water is supplied and stored in the water supply tank 1, the second
The ultraviolet lamp 8 is turned on to radiate ultraviolet rays to the water supply tank 1. At this time, the photocatalyst in the photocatalyst layer on the inner surface of the water supply tank 1 is activated by the ultraviolet irradiation. The activated photocatalyst decomposes the odorous components contained in the water stored in the water supply tank 1. In addition, germs and the like mixed in water are sterilized by the sterilizing action of the irradiated ultraviolet rays. As a result, the water in the water supply tank 1 is deodorized and sterilized, and then supplied to the ice tray 2.
【００２６】製氷皿２に水が適量供給されると、前記と
同じく製氷皿２の上面に沿って流れる冷気によって冷却
され、製氷工程がなされる。製氷後は、脱氷機構５の作
動によって製氷皿２を反転させると共に、少しねじり力
が加えられて脱氷工程がなされる。そして、製氷皿２か
ら脱氷した製氷は貯氷箱４に落下して貯蔵される。これ
により、ほぼ無臭・無菌の製氷が得られる。When an appropriate amount of water is supplied to the ice tray 2, it is cooled by cold air flowing along the upper surface of the ice tray 2 as described above, and the ice making step is performed. After ice making, the ice making tray 2 is turned over by the operation of the ice removing mechanism 5, and a little twisting force is applied to perform the ice removing process. Then, the ice making de-iced from the ice making tray 2 falls into the ice storage box 4 and is stored. As a result, almost odorless and aseptic ice making can be obtained.
【００２７】図５は、本発明に係る製氷装置の第３の実
施形態を示す概略図であり、前記と同じく冷蔵室１６に
設けられた給水タンク１と、冷凍室１７に設けられた製
氷器１０及び貯氷箱４を備えている。そして、製氷器１
０の製氷皿２には、給水タンク１から適量の水が給水管
３を介して供給される。FIG. 5 is a schematic diagram showing a third embodiment of the ice making device according to the present invention. As with the above, the water tank 1 provided in the refrigerating compartment 16 and the ice making device provided in the freezing compartment 17 are shown. 10 and an ice storage box 4 are provided. And ice machine 1
An appropriate amount of water is supplied from the water supply tank 1 to the 0 ice tray 2 through the water supply pipe 3.
【００２８】給水タンク１と給水管３とは、紫外線が通
過する部材例えば透明の合成樹脂材にてそれぞれ形成さ
れ、図示は省略したがその内面にはそれぞれ光触媒層が
設けられている。光触媒層は、ゼオライト等の吸着材に
担持された光触媒（酸化チタン等）と適宜のバインダー
とを含み、給水タンク１と給水管３の内面に噴霧又は塗
布手段等によりそれぞれ形成される。The water supply tank 1 and the water supply pipe 3 are each formed of a member through which ultraviolet rays pass, for example, a transparent synthetic resin material, and a photocatalyst layer is provided on the inner surface thereof, though not shown. The photocatalyst layer contains a photocatalyst (titanium oxide or the like) supported on an adsorbent such as zeolite and an appropriate binder, and is formed on the inner surfaces of the water supply tank 1 and the water supply pipe 3 by spraying or applying means, respectively.
【００２９】９は給水タンク１及び給水管３の近傍に配
設した第３の紫外線ランプであり、透明の給水タンク１
及び給水管３に紫外線を照射して、給水タンク１及び給
水管３の光触媒層における光触媒をそれぞれ活性化でき
るようにしてある。この場合、第３の紫外線ランプ９
は、庫内の側壁に装着して取り付けたが、この位置に限
定されず給水タンク１及び給水管３に対して紫外線を効
率良く且つムラなく照射できる位置であれば他の箇所で
あっても構わない。又、第３の紫外線ランプ８は給水タ
ンク１及び給水管３の全体にわたって紫外線をほぼ均一
に照射できるように平面型紫外線ランプが使用されてい
るが、これに限定されず球型又は直管型の紫外線ランプ
であってもよい。Reference numeral 9 is a third ultraviolet lamp disposed near the water supply tank 1 and the water supply pipe 3, and is a transparent water supply tank 1.
Further, the water supply pipe 3 is irradiated with ultraviolet rays so that the photocatalysts in the photocatalyst layers of the water supply tank 1 and the water supply pipe 3 can be activated. In this case, the third ultraviolet lamp 9
Is attached to the side wall in the refrigerator, but is not limited to this position, and may be at any other position as long as it can efficiently and uniformly irradiate the water supply tank 1 and the water supply pipe 3 with ultraviolet rays. I do not care. Further, the third ultraviolet lamp 8 is a flat type ultraviolet lamp so as to irradiate ultraviolet rays substantially uniformly over the entire water supply tank 1 and the water supply pipe 3, but the present invention is not limited to this and is a spherical or straight tube type. UV lamp may be used.
【００３０】この第３の紫外線ランプ８は、前記と同じ
く比較的短波長例えば２５４ｎｍ近傍の紫外線を放射す
るようにしてあり、この程度の波長の紫外線であれば殺
菌作用があり、紫外線によって雑菌を殺菌することが可
能である。又、紫外線の波長を１８５ｎｍ近傍にする
と、紫外線だけでなくオゾンを発生させることが可能で
ある。しかしながら、オゾンには毒性があるため、殺菌
力のある濃度の高いオゾンを発生させると、これを無害
化するための機構が必要となる。発生するオゾンの濃度
が５ｐｐｍ以上であれば実用レベルの殺菌力を得ること
ができるので、オゾン濃度は５ｐｐｍ程度に抑えること
が好ましい。The third ultraviolet lamp 8 is designed to emit ultraviolet rays having a relatively short wavelength, for example, near 254 nm, similarly to the above, and an ultraviolet ray having such a wavelength has a bactericidal action, and the ultraviolet rays cause germs to be eliminated. It is possible to sterilize. Further, when the wavelength of ultraviolet rays is around 185 nm, not only ultraviolet rays but also ozone can be generated. However, since ozone is toxic, if ozone having a high sterilizing concentration is generated, a mechanism for making the ozone harmless is required. If the concentration of generated ozone is 5 ppm or more, a practical level of sterilizing power can be obtained, so it is preferable to suppress the ozone concentration to about 5 ppm.
【００３１】このように構成された製氷装置において、
給水タンク１から製氷皿２に給水する際に、第３の紫外
線ランプ８を点灯して紫外線を給水タンク１及び給水管
３に照射する。この紫外線照射によって、給水タンク１
及び給水管３の内面の光触媒層における光触媒がそれぞ
れ活性化される。この活性化された光触媒により、水中
に含まれる臭気成分がそれぞれ分解される。又、照射さ
れた紫外線の殺菌作用によって、給水タンク１内に収納
されている水及び給水管３を通過する水中に混入した雑
菌等が殺菌される。その結果、製氷皿２には脱臭及び殺
菌された水が供給されることになる。In the ice making device constructed as described above,
When water is supplied from the water supply tank 1 to the ice tray 2, the third ultraviolet lamp 8 is turned on to irradiate the water supply tank 1 and the water supply pipe 3 with ultraviolet light. By this ultraviolet irradiation, water tank 1
Also, the photocatalyst in the photocatalyst layer on the inner surface of the water supply pipe 3 is activated. Odor components contained in water are decomposed by the activated photocatalyst. Further, the germicidal action of the irradiated ultraviolet rays sterilizes the bacteria contained in the water contained in the water supply tank 1 and the water passing through the water supply pipe 3. As a result, deodorized and sterilized water is supplied to the ice tray 2.
【００３２】製氷皿２に水が適量供給されると、前記と
同じく製氷皿２の上面に沿って流れる冷気によって冷却
され、製氷工程がなされる。製氷後は、脱氷機構５の作
動によって製氷皿２を反転させると共に、少しねじり力
が加えられて脱氷工程がなされる。そして、製氷皿２か
ら脱氷した製氷は貯氷箱４に落下して貯蔵される。これ
により、ほぼ無臭・無菌の製氷が得られる。When an appropriate amount of water is supplied to the ice tray 2, it is cooled by cold air flowing along the upper surface of the ice tray 2 as described above, and the ice making step is performed. After ice making, the ice making tray 2 is turned over by the operation of the ice removing mechanism 5, and a little twisting force is applied to perform the ice removing process. Then, the ice making de-iced from the ice making tray 2 falls into the ice storage box 4 and is stored. As a result, almost odorless and aseptic ice making can be obtained.
【００３３】第３の紫外線ランプ９の代わりに、給水管
３に対する前記第１の紫外線ランプ６、給水タンク１に
対する第２の紫外線ランプ８を併用して実施することも
勿論可能である。この場合は、第１の紫外線ランプ６
と、第２の紫外線ランプ８とを１つの紫外線ランプ即ち
第３の紫外線ランプ９で共用するものであり、これによ
り消費電力の節約が可能となる。Instead of the third ultraviolet lamp 9, it is of course possible to use the first ultraviolet lamp 6 for the water supply pipe 3 and the second ultraviolet lamp 8 for the water supply tank 1 together. In this case, the first ultraviolet lamp 6
And the second ultraviolet lamp 8 are commonly used by one ultraviolet lamp, that is, the third ultraviolet lamp 9, whereby power consumption can be saved.
【００３４】尚、光触媒を含む光触媒層は人体に無害で
あるため、給水タンク及び給水管において光触媒層に水
が接触しても何ら問題はない。又、製氷皿２の内面にも
光触媒を含む光触媒層を設け、これに紫外線を照射する
ことにより製氷皿においても脱臭・殺菌を行うようにす
ると好ましい。Since the photocatalyst layer containing the photocatalyst is harmless to the human body, there is no problem even if water contacts the photocatalyst layer in the water tank and the water supply pipe. It is also preferable to provide a photocatalyst layer containing a photocatalyst on the inner surface of the ice tray 2 and irradiate it with ultraviolet rays to deodorize and sterilize the ice tray.
【００３５】[0035]
【発明の効果】以上説明したように、請求項１の発明に
よれば、冷蔵庫に組み込まれる製氷装置において、給水
タンクと、製氷皿と、給水タンクから製氷皿に適量の水
を供給する給水管とを備え、前記給水管を紫外線が通過
する部材で成すと共にこの給水管の内面に光触媒層を設
け、この光触媒層に前記給水管の外側から紫外線を照射
する紫外線ランプを前記給水管の近傍に配置したので、
透明の給水管に紫外線を照射することにより光触媒層の
光触媒を活性化し、給水管を通る水を脱臭すると共に、
紫外線の殺菌作用によって水中に混入した雑菌を殺菌す
ることができる。As described above, according to the invention of claim 1, in the ice making device incorporated in the refrigerator, a water supply tank, an ice tray, and a water supply pipe for supplying an appropriate amount of water from the water supply tank to the ice tray. And a photocatalyst layer is provided on the inner surface of the water supply pipe and the water supply pipe is made of a member through which ultraviolet rays pass, and an ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays from the outside of the water supply pipe is provided in the vicinity of the water supply pipe. I placed it, so
By irradiating the transparent water supply pipe with ultraviolet rays, the photocatalyst of the photocatalyst layer is activated, and the water passing through the water supply pipe is deodorized.
By the bactericidal action of ultraviolet rays, various bacteria mixed in water can be sterilized.
【００３６】又、請求項２の発明によれば、前記給水タ
ンクを紫外線が通過する部材で成すと共にこの給水タン
クの内面に光触媒層を設け、この光触媒層に前記給水タ
ンクの外側から紫外線を照射する紫外線ランプを前記給
水タンクの近傍に配置したので、透明の給水タンクに紫
外線を照射することにより光触媒層の光触媒を活性化
し、給水タンクに収納される水を脱臭すると共に、紫外
線の殺菌作用によって水中に混入した雑菌を殺菌するこ
とができる。According to the invention of claim 2, the water supply tank is made of a member through which ultraviolet rays pass, and a photocatalyst layer is provided on the inner surface of the water supply tank, and the photocatalyst layer is irradiated with ultraviolet rays from the outside of the water supply tank. Since the ultraviolet lamp to be placed in the vicinity of the water supply tank, the photocatalyst of the photocatalyst layer is activated by irradiating the transparent water supply tank with ultraviolet rays to deodorize the water stored in the water supply tank and to sterilize the ultraviolet rays. Miscellaneous bacteria mixed in water can be sterilized.
【００３７】更に、請求項３の発明によれば、前記給水
管を紫外線が通過する部材で成すと共にこの給水管の内
面に光触媒層を設け、この光触媒層に紫外線を照射する
第１の紫外線ランプを前記給水管の近傍に配置し、且つ
前記給水タンクを紫外線が通過する部材で成すと共にこ
の給水タンクの内面に光触媒層を設け、この光触媒層に
紫外線を照射する第２の紫外線ランプを前記給水タンク
の近傍に配置したので、透明の給水管及び給水タンクに
紫外線をそれぞれ照射することにより光触媒層の光触媒
をそれぞれ活性化し、給水タンクに収納される水及び給
水管を通る水をそれぞれ脱臭すると共に、紫外線の殺菌
作用によって水中に混入した雑菌をそれぞれ殺菌するこ
とができる。Further, according to the third aspect of the invention, the first ultraviolet lamp is formed by forming the water supply pipe with a member through which ultraviolet rays pass, and providing a photocatalyst layer on the inner surface of the water supply pipe, and irradiating the photocatalyst layer with ultraviolet rays. Is disposed in the vicinity of the water supply pipe, and the water supply tank is made of a member through which ultraviolet rays pass, and a photocatalyst layer is provided on the inner surface of the water supply tank, and the second ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays is the water supply tank. Since it is placed near the tank, the photocatalyst in the photocatalyst layer is activated by irradiating the transparent water supply pipe and the water supply tank with ultraviolet rays, respectively, and deodorizes the water contained in the water supply tank and the water passing through the water supply pipe. By the bactericidal action of ultraviolet rays, it is possible to sterilize various germs mixed in water.
【００３８】又、請求項４の発明によれば、前記第１の
紫外線ランプと、第２の紫外線ランプとを１つの紫外線
ランプで共用することにより消費電力の節約ができる。Further, according to the invention of claim 4, power consumption can be saved by sharing the first ultraviolet lamp and the second ultraviolet lamp by one ultraviolet lamp.
【図１】本発明に係る製氷装置を冷凍冷蔵庫に適用した
実施形態を示す概略正面図である。FIG. 1 is a schematic front view showing an embodiment in which an ice making device according to the present invention is applied to a refrigerator-freezer.
【図２】本発明に係る製氷装置の第１の実施形態を示す
概略図である。FIG. 2 is a schematic view showing a first embodiment of an ice making device according to the present invention.
【図３】第１の実施形態における給水管の一部破断面図
である。FIG. 3 is a partial cross-sectional view of the water supply pipe according to the first embodiment.
【図４】本発明に係る製氷装置の第２の実施形態を示す
概略図である。FIG. 4 is a schematic view showing a second embodiment of the ice making device according to the present invention.
【図５】本発明に係る製氷装置の第３の実施形態を示す
概略図である。FIG. 5 is a schematic diagram showing a third embodiment of an ice making device according to the present invention.
【図６】従来の冷蔵庫の製氷装置を示す概略斜視図であ
る。FIG. 6 is a schematic perspective view showing a conventional ice making device of a refrigerator.
１…給水タンク ２…製氷皿 ３…給水管 ３ａ…光触媒層 ６…第１の紫外線ランプ ８…第２の紫外線ランプ ９…第３の紫外線ランプ １０…製氷器 1 ... Water tank 2 ... Ice tray 3 ... Water supply pipe 3a ... Photocatalyst layer 6 ... First UV lamp 8 ... Second UV lamp 9 ... Third UV lamp 10 ... Ice maker
───────────────────────────────────────────────────── フロントページの続き (72)発明者 神谷 英昭 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 (72)発明者 茂木 弘道 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hideaki Kamiya 2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture Within Yo Denki Co., Ltd. (72) Inventor Hiromichi Mogi 2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture Within Yo Denki Co., Ltd.
Claims (4)
給水タンクと、製氷皿と、給水タンクから製氷皿に適量
の水を供給する給水管とを備え、前記給水管を紫外線が
通過する部材で成すと共にこの給水管の内面に光触媒層
を設け、この光触媒層に前記給水管の外側から紫外線を
照射する紫外線ランプを前記給水管の近傍に配置したこ
とを特徴とする冷蔵庫の製氷装置。1. An ice making device incorporated in a refrigerator,
A water supply tank, an ice tray, and a water supply pipe for supplying an appropriate amount of water from the water supply tank to the ice tray, the water supply pipe is made of a member through which ultraviolet rays pass, and a photocatalytic layer is provided on the inner surface of the water supply pipe. An ice making device of a refrigerator, wherein an ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays from the outside of the water supply pipe is arranged in the vicinity of the water supply pipe.
給水タンクと、製氷皿と、給水タンクから製氷皿に適量
の水を供給する給水管とを備え、前記給水タンクを紫外
線が通過する部材で成すと共にこの給水タンクの内面に
光触媒層を設け、この光触媒層に前記給水タンクの外側
から紫外線を照射する紫外線ランプを前記給水タンクの
近傍に配置したことを特徴とする冷蔵庫の製氷装置。2. An ice making device incorporated in a refrigerator,
A water supply tank, an ice tray, and a water supply pipe for supplying an appropriate amount of water from the water supply tank to the ice tray, the water supply tank is made of a member through which ultraviolet rays pass, and a photocatalytic layer is provided on the inner surface of the water supply tank. An ice making device of a refrigerator, wherein an ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays from the outside of the water supply tank is arranged in the vicinity of the water supply tank.
給水タンクと、製氷皿と、給水タンクから製氷皿に適量
の水を供給する給水管とを備え、前記給水管を紫外線が
通過する部材で成すと共にこの給水管の内面に光触媒層
を設け、この光触媒層に紫外線を照射する第１の紫外線
ランプを前記給水管の近傍に配置し、且つ前記給水タン
クを紫外線が通過する部材で成すと共にこの給水タンク
の内面に光触媒層を設け、この光触媒層に紫外線を照射
する第２の紫外線ランプを前記給水タンクの近傍に配置
したことを特徴とする冷蔵庫の製氷装置。3. An ice making device incorporated in a refrigerator,
A water supply tank, an ice tray, and a water supply pipe for supplying an appropriate amount of water from the water supply tank to the ice tray, the water supply pipe is made of a member through which ultraviolet rays pass, and a photocatalytic layer is provided on the inner surface of the water supply pipe. A first ultraviolet lamp for irradiating the photocatalyst layer with ultraviolet rays is arranged in the vicinity of the water supply pipe, and the water supply tank is made of a member through which ultraviolet rays pass, and a photocatalyst layer is provided on the inner surface of the water supply tank. An ice making device for a refrigerator, wherein a second ultraviolet lamp for irradiating ultraviolet rays is arranged in the vicinity of the water supply tank.
ランプとを１つの紫外線ランプで共用することを特徴と
する請求項３記載の冷蔵庫の製氷装置。4. The ice making device for a refrigerator according to claim 3, wherein the first ultraviolet lamp and the second ultraviolet lamp are shared by one ultraviolet lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002092055A JP2003287356A (en) | 2002-03-28 | 2002-03-28 | Ice making device of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002092055A JP2003287356A (en) | 2002-03-28 | 2002-03-28 | Ice making device of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003287356A true JP2003287356A (en) | 2003-10-10 |
Family
ID=29236985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002092055A Pending JP2003287356A (en) | 2002-03-28 | 2002-03-28 | Ice making device of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003287356A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010004027A1 (en) * | 2008-07-10 | 2010-01-14 | Brita Gmbh | Device for the sterilization of water and use of said device |
| DE202011000504U1 (en) | 2011-03-08 | 2011-10-14 | Brita Gmbh | Device for providing sterilized ice for making beverages |
| US8614425B2 (en) | 2008-07-10 | 2013-12-24 | Brita Gmbh | Device for sterilizing water and use of same |
| CN103782119A (en) * | 2011-08-09 | 2014-05-07 | 东部大宇电子株式会社 | Refrigerator |
| US9789427B2 (en) | 2008-06-27 | 2017-10-17 | Brita Gmbh | Apparatus for treating water, particularly filter apparatus, and cartridge |
| JP2019219095A (en) * | 2018-06-19 | 2019-12-26 | ホシザキ株式会社 | Ice-making machine |
| JP2020020561A (en) * | 2018-08-03 | 2020-02-06 | ホシザキ株式会社 | Ice making machine |
-
2002
- 2002-03-28 JP JP2002092055A patent/JP2003287356A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9789427B2 (en) | 2008-06-27 | 2017-10-17 | Brita Gmbh | Apparatus for treating water, particularly filter apparatus, and cartridge |
| WO2010004027A1 (en) * | 2008-07-10 | 2010-01-14 | Brita Gmbh | Device for the sterilization of water and use of said device |
| US8614425B2 (en) | 2008-07-10 | 2013-12-24 | Brita Gmbh | Device for sterilizing water and use of same |
| DE202011000504U1 (en) | 2011-03-08 | 2011-10-14 | Brita Gmbh | Device for providing sterilized ice for making beverages |
| CN103782119A (en) * | 2011-08-09 | 2014-05-07 | 东部大宇电子株式会社 | Refrigerator |
| CN103782119B (en) * | 2011-08-09 | 2016-08-31 | 东部大宇电子株式会社 | Refrigerator |
| JP2019219095A (en) * | 2018-06-19 | 2019-12-26 | ホシザキ株式会社 | Ice-making machine |
| JP2020020561A (en) * | 2018-08-03 | 2020-02-06 | ホシザキ株式会社 | Ice making machine |
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