JP2004011996A - Water service installation - Google Patents

Water service installation Download PDF

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Publication number
JP2004011996A
JP2004011996A JP2002164881A JP2002164881A JP2004011996A JP 2004011996 A JP2004011996 A JP 2004011996A JP 2002164881 A JP2002164881 A JP 2002164881A JP 2002164881 A JP2002164881 A JP 2002164881A JP 2004011996 A JP2004011996 A JP 2004011996A
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Japan
Prior art keywords
water supply
tank
discharge port
water
feed
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JP2002164881A
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Japanese (ja)
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JP4253470B2 (en
Inventor
Yoshihide Uchida
内田 佳秀
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Toshiba Corp
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Toshiba Corp
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  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water service installation for a refrigerator attaining a high water feeding efficiency by surely positioning a water tank and connecting a delivery port to a feed pipe in a simple constitution prevented from increasing the number of components and the cost. <P>SOLUTION: This water service installation comprises a feed pump 16 disposed in the feed tank 8 provided in a refrigerator body and having the delivery port 18 projecting outward from the tank, and the feed pipe 22 having one end connected to the delivery port. The feed pump is positioned adjacent to a drive part 15 installed outward the feed tank and drives the power of the drive part by a magnet coupling in noncontact therewith, the bottom of the feed tank 8 is formed with a positioning recess part 8a to be engaged with a projecting staged part 13a on a mount floor surface, and a projection part 26 is provided frontward the tank mount basal plane so as to direct the tip of the delivery port downward and accord with the opening of the feed pipe in the tank position right before engagement of the delivery port 18 with the feed pipe 22. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、自動製氷装置や冷水供給装置を搭載した冷蔵庫に係り、特に製氷皿などへ水を供給する給水装置に関する。
【0002】
【従来の技術】
近年、冷蔵庫の自動製氷装置における給水装置として、図5に示すように、冷蔵庫内に設置した給水タンク(58)の内部に、冷水を製氷皿部へ吐出する給水ポンプ(66)を設け、給水ポンプ(66)には可動部であるインペラ(71)にマグネット(70)を固定するとともに、給水タンク(58)の後部の本体側には駆動モータ(65)を給水ポンプ(66)に隣接して固定し、この駆動モータ(65)により回転するマグネット(67)を駆動モータ(65)の前面に設けて、この駆動モータのマグネット(67)と前記給水ポンプ(66)のマグネット(70)とを対向させて設置したものが商品化されている。
【0003】
この給水装置は、自動製氷のための給水時に、制御信号によって駆動モータ(65)を動作させることによって、給水タンク(58)外に設置した駆動モータ(65)の回転力を前記対向する2つのマグネット(67)(70)間の磁力により、非接触にてタンク内の給水ポンプ(66)に伝達し、インペラ(71)を回転させて冷水を吐出する、いわゆるマグネットカップリング方式の給水装置である。
【0004】
そして、給水タンク(58)の上面開口を閉塞する蓋(59)には、一端を下方の前記給水ポンプ(66)に接続するとともに他端を後方の給水パイプ(72)に連結した吐出口(68)を外方に突出して一体に形成している。前記給水パイプ(72)は、冷蔵室上部の断熱壁を貫通して上方の冷凍室内に配置した製氷装置まで延出しており、ゴム系材料により弾性を有して設けられている。
【0005】
前記給水ポンプの吐出口(68)と給水パイプ(72)下端の開口との連結は、上部の製氷皿への揚程との関係から水洩れのないよう緊密に嵌合させるとともに、給水ポンプ(66)のインペラ(71)と駆動モータ(65)とのマグネットカップリングについてもカップリング距離がばらついて動作不良にならないよう確実な位置決めにより設置されている。
【0006】
【発明が解決しようとする課題】
従来の給水タンク(58)の設置は、タンク収納部(63)の底面に形成したガイドに沿って摺動挿入することでおこなっていたが、押し込み量や位置決めが視覚的に確認できず感覚的にも明瞭でないため、不完全な挿入やタンクのセット後のズレが発生しており、これらによる給水不良を防止するために、本体側とタンクとを係合する部材やタンクを固定するバネ部材などの種々の部材を採用して給水タンク(58)の位置決めや固定をおこなっていた。
【0007】
また近年では、別部材を使用しない構成として図5に示すように、冷蔵室底面におけるタンク収納部(63)に位置決め用凸段部(63a)を形成し、冷蔵室の前面開口から給水タンク(58)をタンク収納部に摺動し挿入した際に、タンク底面に形成した凹部(58a)を前記凸段部(63a)の段差に落とし込むことで位置決めするようにしていた。
【0008】
しかしながら、前者の場合は部品数が多くなり、コスト高になるとともに組立工数も煩雑となる欠点があり、後者の場合、特にマグネットカップリング方式のような場合は、ポンプのインペラ(71)と駆動モータ(65)と離間させ、非接触で動力伝達をおこなうため、タンク(58)を所定位置に誤差なく固定する必要があることから凹部(58a)と凸段部(63a)との係合精度が要求されるが、その凹凸係合の結果、給水タンク(58)が収納部底面の凸段部(63a)を乗り越える際には、図6に示すように、前記吐出口(68)の先端が斜め上方に向かっていることから給水パイプ(72)の開口と合致しないため、スムーズな連結が困難になっていた。
【0009】
そして特に、自動製氷装置が給水タンクの上部に位置するいわゆるトップフリーザタイプの冷蔵庫においては、給水を冷蔵室から上部冷凍室の製氷部に持ち上げる必要があることから、より精度の高いシール構成が要求されるため、さらに部品数が増加するとともに構造が複雑となって簡易な連結構成で実施することは困難であった。
【0010】
本発明はこの点に着目してなされたもので、部品数やコストを増やすことのない簡単な構成でありながら、確実な給水タンクの位置決めおよび吐出口と給水パイプとの連結により、高い給水効率を可能にした冷蔵庫の給水装置を提供することを目的とする。
【0011】
【課題を解決するための手段】
上記課題を解決するために、請求項1記載の発明による給水装置は、冷蔵庫本体内に着脱自在に設けた給水タンクと、この給水タンク内に配置されタンクから外方に突出する吐出口を設けた給水ポンプと、前記吐出口に一端を連結させた給水パイプと、前記給水ポンプに隣接して給水タンクの外方に設置した駆動部とからなり、給水ポンプは、前記駆動部の動力をマグネットカップリングにより非接触で駆動するようにしたものにおいて、給水タンクの底面に前記駆動部と近接配置すべく載置床面の凸段部と係合する位置決め凹部を形成するとともに、前記吐出口と給水パイプとの係合直前のタンク位置で吐出口の先端を下方に指向して給水パイプ開口と合致させるようにタンク載置底面の前方に凸部を設けたことを特徴とするものである。
【0012】
この構成により、給水タンクをタンク収納部底面に載置しガイドに沿って奥方へ摺動し押し込むという動作により、底面の凸部にタンクが乗ることで給水ポンプの吐出口の先端を下方に指向して給水パイプ開口と合致させ、確実に連結することができるとともに給水タンクを冷蔵室内の所定位置に設置でき、マグネットカップリングによる駆動伝達力の効率を向上して、製氷装置への大きな揚水力を得ることができる。
【0013】
請求項2記載の発明は、タンク底面が摺動する凸部の後方を吐出口と給水パイプ開口との係合に合わせて水平移動させるよう下方傾斜させたことを特徴とするものであり、給水タンクの設置時に、タンク後部が凸部後方の傾斜面を下降しながら後方へ摺動することで吐出口の先端が下方指向状態から徐々に水平状態になって給水パイプの開口と合致し、凸段部とタンクの凹部との係合位置決めと同時に吐出口と給水パイプ開口との連結を確実に完了することができる。
【0014】
【発明の実施の形態】
以下、図面に基づき本発明の1実施形態について説明する。図1は本発明に係る冷蔵庫の縦断面図であり、断熱箱体で形成された冷蔵庫本体(1)内部を貯蔵空間として最上部に冷凍室(2)、その下方に冷蔵室(3)、最下部には野菜室(4)を独立して配置し、各貯蔵室の前面開口には各々専用の扉を開閉自在に設けている。
【0015】
冷凍室(2)の底面部には自動製氷装置(5)を設け、断熱仕切壁(6)を介して設けた冷蔵室(3)内の上部には、他の冷蔵室温度と区画形成して、0℃近傍の室温に制御される低温室(7)を設け、低温室区画の一側下部には、前記自動製氷装置(5)の製氷皿(5a)へ製氷用の冷水を給水する給水タンク(8)を設けている。
【0016】
冷凍室(2)後部には、冷却器(10)および冷却ファン(11)を設け、本体下部に設置した冷媒圧縮機(12)の駆動により、前記冷却器(10)によって冷却された冷気を、冷却ファン(11)の回転で各室に送風し、それぞれを所定の設定温度に冷却制御するものである。
【0017】
給水タンク(8)は、図2にその縦断面図を示すように、幅狭で奥行き方向に長い形状の容器であり、その上部開口は蓋(9)で密閉して、冷蔵室における前記低温室(7)下部のタンク取付部(13)にガイドレールによって着脱自在に装着されているとともに、後述する駆動装置(15)と関連結合して、製氷完了後などの給水動作時には給水ポンプ(16)を自動的に作動させ、製氷装置の製氷皿(5a)に所定量の製氷用水を供給するものである。
【0018】
タンク取付部(13)に設置された給水タンク(8)の後部の本体側には、従来と同様に、内面壁を介して給水ポンプ(16)の駆動装置である駆動モータ(15)を設置しており、この駆動モータ(15)と一体に前方に設けたマグネット(17)に対向隣接して給水ポンプ(16)が給水タンク(8)の後部壁面近傍に配置されている。
【0019】
給水ポンプ(16)は、前記給水タンクの蓋(9)にL字状の給水路を一体に形成した吐出口(18)の下端開口に接続しており、ポンプケーシング(19)内に、マグネット(20)を一体に埋設して設けたインペラ(21)を配置させて構成されている。
【0020】
前記インペラと一体化されたマグネット(20)は、給水タンク(8)の側壁を介して前記駆動モータ(15)の動力をマグネットカップリングにより非接触でインペラ(21)に伝達し、これを回転駆動するよう駆動モータ(15)前部のマグネット(17)に対向して位置決め配置されている。
【0021】
前記吐出口(18)の一方の開口(18a)は、タンク(8)の上部後方に水平に突出しており、ゴム系材料の弾性体からなる給水パイプ(22)の開口に連結している。この給水パイプ(22)は、冷蔵室上部の断熱壁(6)を貫通して冷凍室(2)内に配置した製氷装置(5)まで延出しており、製氷時における給水信号により、タンク(8)内の冷水を給水ポンプ(19)により吸い上げ、吐出口(18)を介して製氷皿(5a)に定量給水し製氷するものであり、その下端の開口は、本体側に一端を固定したパイプ受け(23)により所定の位置に保持されている。
【0022】
しかして、タンク収納部(13)は以下のように構成されている。タンク収納部(13)の後端には立上り壁(25)を形成し、この壁の背部には前記駆動モータによって回転するマグネット(17)を位置させており、この立上り壁(25)に給水タンク(8)の背面下部が当接し、さらにタンク内に取り付けた給水ポンプ(16)のインペラと一体化させたマグネット(20)が前記駆動モータのマグネット(17)に対向して隣接するようにしている。
【0023】
前記給水タンク(8)の給水ポンプ(16)部分から前方の所定位置にはタンク内方への凹部(8a)を設けている。この凹部(8a)はタンク収納部(13)の底面に形成した凸段部(13a)と凹凸係合して、給水タンク(8)を所定の奥行き位置およびタンク収納部(13)上で移動しないように保持するものであり、所定位置にタンク(8)が保持されている場合には、前記吐出口の先端開口(18a)は、パイプ受け(23)の前方拡開部をガイドにして弾性体である給水パイプ(22)の下端開口に嵌入し、水漏れなく連結されるように構成されている。
【0024】
そして、所定位置に保持された給水タンク(8)の前端に対応するタンク収納部(13)の底面には、上方への凸部(26)を設けている。この凸部(26)は、奥行き方向に向かって所定の平坦部(26a)と平坦部の端面から後方に下降する傾斜面(26b)を有しており、傾斜面(26b)の後端部がタンク(8)前端の立ち上がり壁に合致するように形成されている。
【0025】
さらに、後方摺動時における給水タンク(8)底面が前記凸部(26)上にある場合は、タンク(8)の後端が低位置にあることから、前記タンクの吐出口(18)の開口(18a)は、前記給水パイプ(22)の開口の高さより下方に位置するよう設計している。
【0026】
したがって、製氷運転の継続によって給水タンク(8)内の水がなくなり、タンクをタンク収納部(13)から取り出してタンク蓋(9)に形成した注水口(25)から水を補給した後、再び給水タンク(8)を収納する際において、図3に示すように、摺動させている給水タンク(8)が未だ冷蔵室前方にあってタンク底面の前端がタンク収納部(13)底面の凸部(26)上にある場合は、タンクは後方に下方傾斜している結果、給水ポンプの吐出口(18)の先端軸中心は給水パイプ(22)の開口軸中心に指向している。
【0027】
後方への摺動により、図4に示すように、タンク(8)の前端がタンク収納部の凸部(26a)から後方の傾斜面(26b)を下がり始めた際には、これと同期して吐出口の開口(18a)の先端を徐々に水平状態に持ち上げて給水パイプ(22)の開口と合致させるものである。
【0028】
そして最終的には、図2に示したように、凸段部(13a)とタンクの凹部(8a)との係合によりタンク(8)が位置決めされて、給水ポンプ(16)のインペラ(21)と駆動モータ(15)とのマグネット(20)(17)がマグネットカップリングで隣接状態に保持されると同時に、吐出口の開口(18a)がゴム系弾性材からなる給水パイプ(22)の開口にその弾性を利用して嵌入することで、給水ポンプ(16)と給水パイプ(22)との連結を自動的に且つ確実に完了することができる。
【0029】
本発明は以上のように構成されており、離氷後の給水指示により駆動モータ(15)が駆動してマグネット(17)を所定時間回転させ、マグネット(17)の回転によりこれに隣接している給水ポンプ(16)側のマグネット(20)がマグネットカップリングによって回転し、マグネット(20)と一体のインペラ(21)が回転することで、給水タンク(8)内の冷水を吸い込み、吐出口(18)から給水パイプ(22)を通じて自動製氷装置の製氷皿(5a)へ180cc程度の所定水量を給水するポンプ動作をおこなうものであり、マグネットカップリング距離がばらついて動作不良にならないよう確実な位置決めにより設置することができる。 このとき、上述したように、給水ポンプ先端の開口(18a)と給水パイプ(22)とはタンク収納部の凸部(26)の存在により、中心軸が合致した状態で緊密に嵌入連結されており、特に、凸部に傾斜面(26b)を形成すれば、給水タンク(8)が後方の傾斜面(26b)を下がり始めと同時に吐出口の開口(18a)先端を徐々に水平状態に持ち上げて給水パイプ(22)の開口と合致させることができるため、水洩れのないよう緊密に嵌合させたシール作用によって、製氷皿(5a)が給水タンク(8)の上部に位置するトップフリーザタイプの冷蔵庫であっても確実に上方に揚水することができる。
【0030】
また、給水タンク(8)は、タンク収納部(13)に摺動装着することで容易に装着することができるとともに、水の補給時や洗浄時には冷蔵庫扉を開放し抜く出すことで収納部(13)から容易に取り外すことができるものである。
【0031】
なお、上記においては、冷蔵庫における自動製氷装置の給水装置を実施例として説明したが、本発明はこれに限るものではなく、冷蔵庫の貯蔵室内に設置した給水装置におけるポンプ駆動装置のすべてに適用できるものであり、例えば、冷蔵室内の棚上、あるいは扉内側ポケット部に設置した給水タンクから扉を貫通して扉表面の受け部に冷水を供給する、いわゆる冷水供給装置の給水ポンプ装置として採用することもできるものである。
【0032】
【発明の効果】
以上説明したように、本発明による給水装置によれば、給水タンクをタンク収納部底面に載置し奥方へ摺動し押し込むという動作により、給水ポンプの吐出口の先端を下方に指向して給水パイプ開口と合致させ、確実に連結することができるとともに給水タンクを冷蔵室内の所定位置に設置でき、マグネットカップリングによる駆動伝達力の効率を向上して、製氷装置への大きな揚水力を得ることができる。
【図面の簡単な説明】
【図1】本発明の1実施形態を示す冷蔵庫の縦断面図である。
【図2】図1における給水タンク部の詳細構成を示す縦断面図である。
【図3】本発明の給水タンクの収納過程当初の状態を示す説明図である。
【図4】図3の給水タンクと給水パイプの連結直前の状態を示す図である。
【図5】図2と同一部分の従来構成を示す縦断面図である。
【図6】図5の給水タンクと給水パイプの連結直前の状態を示す図である。
【符号の説明】
1…冷蔵室本体   2…冷凍室      3…冷蔵室
4…野菜室     5自動製氷装置    5a…製氷皿
6…断熱壁     7…低温室      8…給水タンク
8a…凹部     9…タンク蓋      10…冷却器
11…冷却ファン   12…冷媒圧縮機     13…タンク収納部
13a…凸段部    15…駆動モータ   16…給水ポンプ
17、20…マグネット  18…吐出口     18a…先端開口
19…ケーシング   21…インペラ    22…給水パイプ
23…パイプ受け   25…注水口      26…凸部
26a…平坦部    26b…傾斜面
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refrigerator equipped with an automatic ice making device and a cold water supply device, and more particularly to a water supply device for supplying water to an ice tray or the like.
[0002]
[Prior art]
In recent years, as a water supply device in an automatic ice making device of a refrigerator, as shown in FIG. 5, a water supply pump (66) for discharging cold water to an ice tray portion is provided inside a water supply tank (58) installed in the refrigerator. A magnet (70) is fixed to an impeller (71) which is a movable part of the pump (66), and a drive motor (65) is provided adjacent to the water supply pump (66) on the rear side of the water supply tank (58). A magnet (67) rotated by the drive motor (65) is provided on the front surface of the drive motor (65), and a magnet (67) of the drive motor and a magnet (70) of the water supply pump (66) are provided. Have been commercialized.
[0003]
This water supply device operates the drive motor (65) by a control signal at the time of water supply for automatic ice making, so that the rotational force of the drive motor (65) installed outside the water supply tank (58) is reduced by the two opposed motors. This is a so-called magnet coupling type water supply device that transmits the water to a water supply pump (66) in a tank in a non-contact manner by the magnetic force between the magnets (67) and (70), and rotates the impeller (71) to discharge cold water. is there.
[0004]
A lid (59) for closing the upper opening of the water supply tank (58) has one end connected to the lower water supply pump (66) and the other end connected to the rear water supply pipe (72). 68) project outward and are integrally formed. The water supply pipe (72) extends through the heat insulating wall at the upper part of the refrigerator compartment to the ice making device arranged in the upper freezer compartment, and is provided with elasticity using a rubber material.
[0005]
The connection between the discharge port (68) of the water supply pump and the opening at the lower end of the water supply pipe (72) is tightly fitted so as not to leak water due to the lift to the upper ice tray, and the water supply pump (66) The magnet coupling between the impeller (71) and the drive motor (65) is also installed by reliable positioning so that the coupling distance does not vary and malfunction occurs.
[0006]
[Problems to be solved by the invention]
The conventional water supply tank (58) has been installed by sliding and inserting along a guide formed on the bottom surface of the tank storage part (63). Because it is not clear, there is incomplete insertion and misalignment after setting the tank, and in order to prevent poor water supply due to these, a member that engages the main body side with the tank and a spring member that fixes the tank The positioning and fixing of the water supply tank (58) are performed by employing various members such as the above.
[0007]
In recent years, as shown in FIG. 5, as a configuration in which a separate member is not used, a positioning step (63 a) is formed in a tank storage section (63) on the bottom of the refrigerator compartment, and a water supply tank ( When the slide 58 is slid into the tank storage section, the recess (58a) formed on the bottom of the tank is dropped into the step of the protruding step (63a) for positioning.
[0008]
However, in the former case, the number of parts is increased, the cost is increased, and the assembling man-hour is disadvantageously complicated. In the latter case, especially in the case of the magnetic coupling system, the pump impeller (71) is driven. It is necessary to fix the tank (58) at a predetermined position without error because the power is transmitted in a non-contact manner while being separated from the motor (65). Therefore, the engagement accuracy between the concave portion (58a) and the convex step portion (63a) is required. However, when the water supply tank (58) gets over the convex step (63a) on the bottom of the storage section as a result of the concave and convex engagement, as shown in FIG. Because it is obliquely upward and does not match the opening of the water supply pipe (72), smooth connection has been difficult.
[0009]
In particular, in a so-called top-freezer type refrigerator in which an automatic ice making device is located above a water supply tank, it is necessary to lift water from a refrigerator to an ice making portion of an upper freezing room, so a more accurate seal configuration is required. Therefore, the number of parts further increases, and the structure becomes complicated, so that it is difficult to implement with a simple connection configuration.
[0010]
The present invention has been made in view of this point, and has a simple structure without increasing the number of parts and costs, and has a high water supply efficiency by reliably positioning the water supply tank and connecting the discharge port to the water supply pipe. It is an object of the present invention to provide a water supply device for a refrigerator that enables the above.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a water supply device according to the first aspect of the present invention is provided with a water supply tank detachably provided in a refrigerator body and a discharge port disposed in the water supply tank and protruding outward from the tank. A water supply pump, a water supply pipe having one end connected to the discharge port, and a drive unit installed outside the water supply tank adjacent to the water supply pump, and the water supply pump uses magnets to drive the power of the drive unit. In a device driven in a non-contact manner by a coupling, a positioning concave portion is formed on a bottom surface of a water supply tank so as to be engaged with a convex step portion of a mounting floor surface so as to be disposed close to the driving portion. At the tank position immediately before engagement with the pipe, a protrusion is provided in front of the tank mounting bottom surface so that the tip of the discharge port is directed downward so as to match the water supply pipe opening.
[0012]
With this configuration, the water supply tank is placed on the bottom of the tank storage part, and slides and pushes inward along the guide, so that the tank rides on the convex part of the bottom and the tip of the discharge port of the water supply pump points downward. The water supply pipe can be aligned with the water supply pipe opening to ensure connection, and the water supply tank can be installed at a predetermined position in the refrigerator compartment, improving the efficiency of the drive transmission force by the magnetic coupling and increasing the pumping power to the ice making device. Can be obtained.
[0013]
The invention according to claim 2 is characterized in that the rear of the convex portion on which the tank bottom slides is inclined downward so as to move horizontally in accordance with the engagement between the discharge port and the water supply pipe opening. When the tank is installed, the rear end of the tank slides rearward while descending the inclined surface behind the convex part, so that the tip of the discharge port gradually changes from the downward pointing state to the horizontal state and matches the opening of the water supply pipe, The connection between the discharge port and the water supply pipe opening can be surely completed at the same time as the positioning of the engagement between the step portion and the concave portion of the tank.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a refrigerator according to the present invention. The interior of a refrigerator body (1) formed of a heat insulating box is used as a storage space, and a freezing compartment (2) is provided at the top, and a refrigerator compartment (3) is provided below. The vegetable compartment (4) is independently arranged at the bottom, and a dedicated door is provided at the front opening of each storage room so as to be freely opened and closed.
[0015]
An automatic ice making device (5) is provided at the bottom of the freezer compartment (2), and a compartment is formed at the upper portion of the refrigerator compartment (3) provided through the heat insulating partition wall (6) with other refrigerator compartment temperatures. A low-temperature room (7) controlled to a room temperature near 0 ° C. is provided, and cold water for making ice is supplied to an ice tray (5a) of the automatic ice making device (5) at a lower portion of one side of the low-temperature room section. A water supply tank (8) is provided.
[0016]
A cooler (10) and a cooling fan (11) are provided at the rear of the freezer compartment (2), and the cold air cooled by the cooler (10) is driven by the drive of a refrigerant compressor (12) installed at the lower part of the main body. The cooling fan (11) is rotated to blow air to each of the chambers, and each of them is cooled to a predetermined set temperature.
[0017]
The water supply tank (8) is a container having a narrow shape and a long shape in the depth direction as shown in a longitudinal sectional view of FIG. The water supply pump (16) is detachably mounted on the tank mounting portion (13) at the lower part of the chamber (7) by a guide rail, and is connected to a driving device (15) to be described later during a water supply operation such as after completion of ice making. ) Is automatically operated to supply a predetermined amount of ice making water to the ice tray (5a) of the ice making device.
[0018]
A drive motor (15), which is a drive device for a water supply pump (16), is provided on the main body side at the rear of the water supply tank (8) installed in the tank mounting part (13) via an inner wall as in the conventional case. A water supply pump (16) is arranged near the rear wall surface of the water supply tank (8) so as to be opposed to and adjacent to a magnet (17) provided in front of the drive motor (15).
[0019]
The water supply pump (16) is connected to a lower end opening of a discharge port (18) integrally formed with an L-shaped water supply passage in the lid (9) of the water supply tank, and a magnet is provided in a pump casing (19). An impeller (21) provided by embedding (20) integrally is provided.
[0020]
The magnet (20) integrated with the impeller transmits the power of the drive motor (15) to the impeller (21) in a non-contact manner by a magnet coupling via a side wall of the water supply tank (8), and rotates the impeller. The drive motor (15) is positioned and arranged to face the magnet (17) in front of the drive motor (15).
[0021]
One opening (18a) of the discharge port (18) protrudes horizontally to the upper rear of the tank (8), and is connected to an opening of a water supply pipe (22) made of an elastic body made of a rubber material. The water supply pipe (22) extends through the heat insulating wall (6) at the upper part of the refrigerator compartment to the ice making device (5) arranged in the freezer compartment (2). 8) The cold water in the inside is sucked up by a water supply pump (19), and water is quantitatively supplied to an ice tray (5a) through a discharge port (18) to make ice. The opening at the lower end has one end fixed to the main body side. It is held at a predetermined position by a pipe receiver (23).
[0022]
Thus, the tank housing (13) is configured as follows. A rising wall (25) is formed at the rear end of the tank housing (13), and a magnet (17) rotated by the drive motor is located behind the wall, and water is supplied to the rising wall (25). The lower part of the back of the tank (8) abuts, and the magnet (20) integrated with the impeller of the water supply pump (16) mounted inside the tank is opposed to and adjacent to the magnet (17) of the drive motor. ing.
[0023]
At a predetermined position in front of the water supply pump (16) of the water supply tank (8), a concave portion (8a) is provided inward of the tank. The concave portion (8a) engages with the convex step portion (13a) formed on the bottom surface of the tank storage portion (13) to move the water supply tank (8) at a predetermined depth position and on the tank storage portion (13). When the tank (8) is held at a predetermined position, the front end opening (18a) of the discharge port is guided by the front expanding portion of the pipe receiver (23). The water supply pipe (22), which is an elastic body, is fitted into the lower end opening of the water supply pipe (22), and is configured to be connected without water leakage.
[0024]
An upwardly projecting portion (26) is provided on the bottom surface of the tank housing (13) corresponding to the front end of the water supply tank (8) held at a predetermined position. The convex portion (26) has a predetermined flat portion (26a) in the depth direction and an inclined surface (26b) descending rearward from an end face of the flat portion, and a rear end portion of the inclined surface (26b). Are formed so as to match the rising wall at the front end of the tank (8).
[0025]
Further, when the bottom surface of the water supply tank (8) at the time of sliding backward is on the convex portion (26), the rear end of the tank (8) is at a low position, so that the discharge port (18) of the tank is not used. The opening (18a) is designed to be located below the height of the opening of the water supply pipe (22).
[0026]
Therefore, the water in the water supply tank (8) runs out due to the continuation of the ice making operation. After the tank is taken out of the tank storage section (13), water is supplied from the water inlet (25) formed in the tank lid (9), and then again. When storing the water supply tank (8), as shown in FIG. 3, the water supply tank (8) that is being slid is still in front of the refrigerator compartment and the front end of the tank bottom surface is convex on the bottom surface of the tank storage part (13). When on the part (26), as a result of the tank being inclined downward rearward, the center of the tip axis of the discharge port (18) of the water supply pump is oriented toward the center of the opening axis of the water supply pipe (22).
[0027]
As shown in FIG. 4, when the front end of the tank (8) starts to descend on the rear inclined surface (26b) from the convex portion (26a) of the tank storage portion due to the backward sliding, it synchronizes with this. The tip of the opening (18a) of the discharge port is gradually lifted to a horizontal state so as to match the opening of the water supply pipe (22).
[0028]
Finally, as shown in FIG. 2, the tank (8) is positioned by the engagement of the convex step (13a) and the recess (8a) of the tank, and the impeller (21) of the water supply pump (16) is positioned. ) And the magnets (20) and (17) of the drive motor (15) are held adjacent to each other by the magnet coupling, and at the same time, the opening (18a) of the discharge port is connected to the water supply pipe (22) made of rubber-based elastic material. The connection between the water supply pump (16) and the water supply pipe (22) can be automatically and reliably completed by fitting into the opening by utilizing its elasticity.
[0029]
The present invention is configured as described above, and the drive motor (15) is driven by the water supply instruction after ice removal to rotate the magnet (17) for a predetermined time, and the magnet (17) is rotated by the magnet (17) to be adjacent thereto. The magnet (20) on the side of the water supply pump (16) is rotated by the magnet coupling, and the impeller (21) integrated with the magnet (20) is rotated to draw in cold water in the water supply tank (8) and to discharge the water. From (18), a pump operation for supplying a predetermined amount of water of about 180 cc to the ice tray (5a) of the automatic ice making device through the water supply pipe (22) is performed, and it is ensured that the magnet coupling distance does not vary and malfunction occurs. It can be installed by positioning. At this time, as described above, the opening (18a) at the tip of the water supply pump and the water supply pipe (22) are tightly fitted and connected in a state where the central axes are aligned due to the presence of the convex portion (26) of the tank housing. In particular, if the inclined surface (26b) is formed in the convex portion, the water supply tank (8) starts to descend on the rear inclined surface (26b) and simultaneously raises the tip of the discharge opening (18a) gradually to a horizontal state. Top freezer type in which the ice tray (5a) is located at the upper part of the water supply tank (8) by the sealing action tightly fitted so as not to leak water because it can match the opening of the water supply pipe (22). Even if it is a refrigerator of the above, it is possible to reliably pump water upward.
[0030]
Further, the water supply tank (8) can be easily mounted by slidingly mounting on the tank storage section (13), and at the time of replenishing or washing with water, the refrigerator door is opened and pulled out so as to be pulled out. 13) can be easily removed.
[0031]
In the above description, the water supply device of the automatic ice making device in the refrigerator has been described as an example, but the present invention is not limited to this, and can be applied to all pump driving devices in the water supply device installed in the storage room of the refrigerator. For example, it is adopted as a water supply pump device of a so-called chilled water supply device, in which chilled water is supplied to a receiving portion on a door surface by penetrating a door from a water supply tank installed on a shelf in a refrigerator compartment or a door inner pocket portion. It can also be.
[0032]
【The invention's effect】
As described above, according to the water supply device of the present invention, the water supply tank is placed on the bottom surface of the tank storage portion, and is slid and pushed inward, so that the water supply pump is supplied with water at a distal end of the water supply pump. The water supply tank can be installed at a predetermined position in the refrigerator compartment, and the efficiency of the drive transmission force by the magnetic coupling can be improved to obtain a large pumping power to the ice making device. Can be.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a refrigerator showing one embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a detailed configuration of a water supply tank in FIG.
FIG. 3 is an explanatory view showing an initial state of a storing process of a water supply tank according to the present invention.
FIG. 4 is a view showing a state immediately before connection of a water supply tank and a water supply pipe in FIG. 3;
FIG. 5 is a longitudinal sectional view showing a conventional configuration of the same portion as FIG. 2;
FIG. 6 is a diagram showing a state immediately before connection of a water supply tank and a water supply pipe in FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Refrigerator room 2 ... Freezer room 3 ... Refrigerator room 4 ... Vegetable room 5 Automatic ice making apparatus 5a ... Ice tray 6 ... Heat insulation wall 7 ... Low temperature room 8 ... Water supply tank 8a ... Recess 9 ... Tank lid 10 ... Cooler 11 ... Cooling fan 12 ... Refrigerant compressor 13 ... Tank storage part 13a ... Convex step 15 ... Drive motor 16 ... Water supply pump 17, 20 ... Magnet 18 ... Discharge port 18a ... Tip opening 19 ... Casing 21 ... Impeller 22 ... Water supply pipe 23 ... Pipe receiver 25 ... water inlet 26 ... convex part 26a ... flat part 26b ... inclined surface

Claims (2)

冷蔵庫本体内に着脱自在に設けた給水タンクと、この給水タンク内に配置されタンクから外方に突出する吐出口を設けた給水ポンプと、前記吐出口に一端を連結させた給水パイプと、前記給水ポンプに隣接して給水タンクの外方に設置した駆動部とからなり、給水ポンプは、前記駆動部の動力をマグネットカップリングにより非接触で駆動するようにしたものにおいて、給水タンクの底面に前記駆動部と近接配置すべく載置床面の凸段部と係合する位置決め凹部を形成するとともに、前記吐出口と給水パイプとの係合直前のタンク位置で吐出口の先端を下方に指向して給水パイプ開口と合致させるようにタンク載置底面の前方に凸部を設けたことを特徴とする給水装置。A water supply tank detachably provided in the refrigerator body, a water supply pump provided in the water supply tank and having a discharge port protruding outward from the tank, a water supply pipe having one end connected to the discharge port, A driving unit installed outside the water tank adjacent to the water supply pump, wherein the water supply pump drives the power of the driving unit in a non-contact manner by a magnetic coupling. In addition to forming a positioning concave portion which engages with the convex step portion of the mounting floor surface so as to be disposed close to the driving portion, the tip of the discharge port is directed downward at the tank position immediately before the engagement between the discharge port and the water supply pipe. A water supply device, wherein a convex portion is provided in front of the tank mounting bottom surface so as to match the water supply pipe opening. タンク底面が摺動する凸部の後方を吐出口と給水パイプ開口との係合に合わせて水平移動させるよう下方傾斜させたことを特徴とする請求項1記載の給水装置。2. The water supply device according to claim 1, wherein the rear of the convex portion on which the tank bottom slides is inclined downward so as to move horizontally in accordance with the engagement between the discharge port and the water supply pipe opening.
JP2002164881A 2002-06-05 2002-06-05 Water supply equipment Expired - Fee Related JP4253470B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045549A2 (en) * 2007-10-05 2009-04-08 Liebherr-Hausgeräte Ochsenhausen GmbH Refrigeration and/or freezer device
CN104864674A (en) * 2015-06-08 2015-08-26 合肥华凌股份有限公司 Water tank component for refrigerator and refrigerator with water tank component
WO2018003170A1 (en) * 2016-07-01 2018-01-04 シャープ株式会社 Beverage supply device and door structure
CN112728845A (en) * 2021-01-05 2021-04-30 青岛海尔电冰箱有限公司 Refrigerator with a door
WO2023227044A1 (en) * 2022-05-26 2023-11-30 重庆海尔制冷电器有限公司 Refrigerator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045549A2 (en) * 2007-10-05 2009-04-08 Liebherr-Hausgeräte Ochsenhausen GmbH Refrigeration and/or freezer device
EP2045549A3 (en) * 2007-10-05 2010-06-09 Liebherr-Hausgeräte Ochsenhausen GmbH Refrigeration and/or freezer device
CN104864674A (en) * 2015-06-08 2015-08-26 合肥华凌股份有限公司 Water tank component for refrigerator and refrigerator with water tank component
WO2018003170A1 (en) * 2016-07-01 2018-01-04 シャープ株式会社 Beverage supply device and door structure
CN109312978A (en) * 2016-07-01 2019-02-05 夏普株式会社 Beverage feeder and door structure
CN112728845A (en) * 2021-01-05 2021-04-30 青岛海尔电冰箱有限公司 Refrigerator with a door
WO2023227044A1 (en) * 2022-05-26 2023-11-30 重庆海尔制冷电器有限公司 Refrigerator

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