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JP4726344B2 - Ice carry-out device in ice storage - Google Patents
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JP4726344B2 - Ice carry-out device in ice storage - Google Patents

Ice carry-out device in ice storage Download PDF

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Publication number
JP4726344B2
JP4726344B2 JP2001204740A JP2001204740A JP4726344B2 JP 4726344 B2 JP4726344 B2 JP 4726344B2 JP 2001204740 A JP2001204740 A JP 2001204740A JP 2001204740 A JP2001204740 A JP 2001204740A JP 4726344 B2 JP4726344 B2 JP 4726344B2
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JP
Japan
Prior art keywords
ice
storage
ice storage
carry
drive device
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.)
Expired - Fee Related
Application number
JP2001204740A
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Japanese (ja)
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JP2003021443A (en
Inventor
勝 和田
伸二 宮崎
政明 川隅
千美 鳥谷
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Hoshizaki Electric Co Ltd
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Hoshizaki Electric Co Ltd
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Filing date
Publication date
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Priority to JP2001204740A priority Critical patent/JP4726344B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、貯氷庫の底部に設けた氷搬出装置に関し、特に電動モータの取付構造に関する。
【0002】
【従来の技術】
貯氷庫が装備する氷搬出装置の一形式として、特開平11−237153号公報に示されるように、貯氷庫を構成する底壁の内面側にて同底壁の最下部から上方に傾斜して形成された上方の部位に氷送出口を有する氷搬送樋と、氷搬送樋に沿って傾斜して回転可能に配設された氷塊送出スクリューと、貯氷庫の側壁の外面側に配設された駆動装置を備え、駆動装置の出力軸と氷塊送出スクリューとが貯氷庫の側壁に設けた貫通孔を通して互いに連結されている氷搬出装置がある。当該形式の氷送出装置においては、駆動装置を構成する電動モータを駆動させて氷塊送出スクリューを回転させると、氷搬送樋内の氷塊が掻き揚げられて氷送出口まで搬送されて、氷送出口から下方に放出している。通常、氷塊を送出する時間は短時間であって、電動モータの駆動時間も短時間で終了する。
【0003】
【発明が解決しようとする課題】
ところで、当該形式の氷搬出装置においては、図3に拡大して示すように、貯氷庫R内の冷気の一部は、図中の矢印に沿って、氷塊送出スクリュー2の回転軸2a、および/または、駆動装置4の出力軸が貫通する貫通孔の隙間を通って前扉3と貯氷庫Rの間に形成された空間Sに流れ込み、この空間Sに流れ込んだ冷気の一部は氷送出口1b付近の隙間から外部に流出する。このため、空間S内は貯氷庫Rと外気の中間の温度となり、駆動装置4を構成する電動モータ4aも空間Sの雰囲気と同じ温度となっている。したがって、氷塊を排出する際に電動モータ4aを駆動させると、電動モータ4a(駆動装置4)自体の温度がさらに上昇し、この熱が回転軸2aと氷塊送出スクリュー2に伝わって、回転軸2aと氷塊送出スクリュー2に接触している貯氷庫R内の氷塊を溶かすという問題があった。
【0004】
本発明は上記問題を解決するために、電動モータを冷却して貯氷庫と同温度にすることにより高品質の氷塊を提供することを目的とする。
【0005】
【発明の概要(課題を解決するための手段および発明の作用・効果)】
本発明は、氷搬出装置に関する。本発明に係る氷搬出装置は、貯氷庫を構成する底壁の内面側にて同底壁の最下部から上方に傾斜して形成された上方の部位に氷送出口を有する氷搬送樋と、前記氷搬送樋に沿って傾斜して回転可能に配設された氷塊送出スクリューと、前記貯氷庫の側壁の外面側に配設された駆動装置を備え、前記駆動装置の出力軸と前記氷塊送出スクリューの回転軸とは前記貯氷庫の側壁に設けた貫通孔を通して互いに連結されている氷搬出装置であって、前記駆動装置は前記貯氷庫を構成する側壁の外面側にて気密的に組み付けたケーシング内に収容されていて、前記貯氷庫の内部と前記ケーシングの内部とは前記貫通孔を通して互いに連通していることを特徴とするものである。
【0006】
本発明に係る氷搬出装置によれば、駆動装置を収容しているケーシング内は、貫通孔を介して互いに連通している貯氷庫内と同等の温度にある。このため、駆動装置を構成する電動モータが非駆動時には、駆動装置は貯氷庫内の温度と同等の温度に冷却されていて、従来のこの種形式の氷搬出装置が装備する駆動装置の温度より低い温度に維持される。この状態にある駆動装置の電動モータを、氷塊を送出すべく駆動させると、電動モータは従来と同等の温度幅だけ上昇するので、駆動装置の温度は従来ほど高くなることはない。このため、駆動装置の出力軸と連結した氷塊送出スクリューの温度の上昇が大幅に抑制されるので、氷塊送出スクリューに接触している貯氷庫内の氷塊が溶けるのを防止することができる。したがって、高品質の氷塊を提供することができる。
【0007】
【発明の実施の形態】
以下に、本発明の一実施の形態を図面を参照して説明すると、図1は本発明による氷搬出装置を適用したオープンセル型製氷機を示している。
【0008】
このオープンセル型製氷機はハウジング10を備えており、このハウジング10内部には上下に貯氷庫R1と機械室R2が形成されている。貯氷庫R1は下面に断熱部材15を設けた底壁11と前壁12を有しており、貯氷庫R1の内部上方には氷塊を生成して貯氷庫R1内に放出する製氷装置20が設けられ、貯氷庫R1の底部にはその内部の氷塊を外部に搬出する氷搬出装置30が設けられている。機械室R2内には、冷却された冷媒を製氷装置20に供給するための圧縮機、凝縮器、冷却ファンよりなる冷凍機など(図示省略)が設けられている。なお、ハウジング10は上方および前方に開口しており、ハウジング10の上部にはハウジング10の上部開口10aを覆蓋する天板13が脱着可能に組み付けられ、ハウジング10の前部にはハウジング10の前部開口10bを覆蓋する前扉14が開閉自在に組み付けられている。また天板13の下面には断熱部材15が設けられている。
【0009】
氷搬出装置30は、氷搬送樋31、氷塊送出スクリュー32および駆動装置40から構成されている。氷搬送樋31は、貯氷庫R1の底壁11に上方に開口する断面略U字状に形成され、底壁11の最下部から上方に傾斜して形成されている。この氷搬送樋31の上端部には氷搬出口31aが下方に開口して形成されている。なお氷搬出口31aは氷搬送樋31の中間部に形成するようにしてもよい。
【0010】
この氷搬送樋31の内部には、回転軸32aとその外周面に設けたねじ状の羽根32bからなる氷塊送出スクリュー32が長手方向に延在して回転自在に配設されている。この回転軸32aは金属材料(例えばステンレス材)で形成されている。回転軸32aの上端部は氷搬送樋31の前端を閉塞する側壁12を貫通し、貯氷庫R1の外側に突出し、この回転軸32aの突出部には側壁12の外面に設けた駆動装置40の出力軸44が離脱可能に連結されている。回転軸32aの上端部に設けた一対の切り欠き32cと、切り欠き32cに対応する回転軸32aの上端部に嵌入される小径の出力軸44の先端部に設けたピン44aとが離脱可能に係合するようになっている。なお回転軸32aと側壁12の間には隙間が形成されている。一方回転軸32aの下端は氷搬送樋31の下端に設けた側壁31bに軸支されている。
【0011】
駆動装置40は電動モータ41を有しており、この電動モータ41の回転駆動はギヤボックス42と減速機43を介して出力軸44に伝えられている。すなわち電動モータ41が作動すると、回転軸32aが所定回転数にて所定方向へ回転するようになっている。
【0012】
この駆動装置40は貯氷庫R1を構成する側壁12の外面に気密的に組み付けたケーシング50内に収容されている。これにより、駆動装置40(電動モータ41)を貯氷庫R1の外気から隔離して貯氷庫R1とケーシング50とを上記した隙間を通して連通させることとなる。
【0013】
このように構成したオープンセル型製氷機において、駆動装置40(電動モータ41)の非作動時には、貯氷庫R1内の冷気は図2の矢印で示すように上記隙間を通ってケーシング50内に流れ込み、ケーシング50から外部に流出することはない。このため、ケーシング50内は効率よく冷却されて貯氷庫R1内とほぼ同じ温度となり、駆動装置40は貯氷庫R1内とほぼ同温度ととなりその温度に維持される。一方駆動装置40の作動時間が従来と同じ短時間であれば駆動装置40の仕事量はほぼ同じであるので、駆動装置40も最大でも従来とほぼ同じ温度幅しか上昇しないと考えられる。したがって、氷塊を排出する際には、駆動装置40が短時間だけ作動しても作動開始時点の駆動装置40自体の温度は十分低く抑えられ、しかも上昇する温度幅はほぼ同じなので、駆動装置40自体の温度は従来ほど高くはならない。この結果、駆動装置40から氷塊送出スクリュー32への熱伝達による氷塊送出スクリュー32の温度の上昇を抑えることとなるので、氷塊送出スクリュー32に接触している貯氷庫R1内の氷塊が溶けるのを防止することができ、高品質の氷塊を提供することができる。
【0014】
また、上記したオープンセル型製氷機において、駆動装置40の作動終了直後にメンテナンスなどのため前部蓋体14を開けた際に、駆動装置40がケーシング50により覆われているので、作業者が温度の高い駆動装置40に直接触れるのを防止することができる。
【0015】
なお、本発明による氷搬出装置は、オープンセル型製氷機に限られず、その他の形式の製氷機、外部で生成した氷塊を供給されて保存するのみの貯氷庫にも適用される。
【図面の簡単な説明】
【図1】 本発明による氷搬出装置を適用したオープンセル型製氷機の概略断面図である。
【図2】 図1に示す氷搬出装置の拡大断面図である。
【図3】 従来技術による氷搬出装置を適用したオープンセル型製氷機において同氷搬出装置の拡大断面図である。
【符号の説明】
10…ハウジング、10a…上部開口、10b…前部開口、11…底壁、12…側壁、13…天板、14…前扉、15…断熱部材、20…製氷装置、30…氷搬出装置、31…氷搬送樋、31a…氷搬出口、31b…側壁、32…氷塊送出スクリュー、32a…回転軸、32b…ねじ状の羽根、32c…切り欠き、40…駆動装置、41…電動モータ、42…ギヤボックス、43…減速機、44…出力軸、44a…ピン、50…ケーシング、R1…貯氷庫、R2…機械室。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ice carry-out device provided at the bottom of an ice storage, and particularly to an electric motor mounting structure.
[0002]
[Prior art]
As one type of ice carry-out device equipped in the ice storage, as shown in Japanese Patent Application Laid-Open No. 11-237153, it is inclined upward from the lowest part of the bottom wall on the inner surface side of the bottom wall constituting the ice storage. An ice conveying basket having an ice delivery outlet in the upper part formed, an ice lump delivery screw inclined and rotated along the ice conveying bowl, and an outer surface side of the side wall of the ice storage There is an ice carry-out device that includes a drive device and in which an output shaft of the drive device and an ice lump delivery screw are connected to each other through a through hole provided in a side wall of the ice storage. In this type of ice delivery device, when the ice block delivery screw is rotated by driving the electric motor that constitutes the drive device, the ice mass in the ice transporting bowl is lifted up and conveyed to the ice delivery port, and the ice delivery port From below. Usually, the time for delivering the ice block is short, and the drive time of the electric motor is also completed in a short time.
[0003]
[Problems to be solved by the invention]
By the way, in the ice carry-out device of this type , as shown in an enlarged view in FIG. 3, a part of the cold air in the ice storage R is, along the arrow in the figure, the rotating shaft 2 a of the ice lump delivery screw 2, and Or, the air flows into the space S formed between the front door 3 and the ice storage R through the clearance of the through-hole through which the output shaft of the drive device 4 passes, and a part of the cold air flowing into the space S is supplied to the ice. It flows out from the gap near the outlet 1b. For this reason, the temperature in the space S is intermediate between the ice storage R and the outside air, and the electric motor 4 a constituting the driving device 4 is also at the same temperature as the atmosphere in the space S. Therefore, when the electric motor 4a is driven when discharging the ice block, the temperature of the electric motor 4a (driving device 4) itself further rises, and this heat is transmitted to the rotary shaft 2a and the ice block delivery screw 2 to thereby rotate the rotary shaft 2a. There was a problem that the ice block in the ice storage R in contact with the ice block delivery screw 2 was melted.
[0004]
In order to solve the above problems, an object of the present invention is to provide high-quality ice blocks by cooling an electric motor to the same temperature as an ice storage.
[0005]
Summary of the Invention (Means for Solving the Problems and Actions and Effects of the Invention)
The present invention relates to an ice carrying device. The ice carry-out device according to the present invention is an ice carrying bowl having an ice feed outlet at an upper part formed by inclining upward from the lowermost part of the bottom wall on the inner surface side of the bottom wall constituting the ice storage, An ice lump delivery screw disposed to be inclined and rotatable along the ice transporting cage; and a drive device disposed on an outer surface side of a side wall of the ice storage; an output shaft of the drive device and the ice lump delivery The rotating shaft of the screw is an ice carry-out device connected to each other through a through-hole provided in the side wall of the ice storage, and the drive device is assembled airtightly on the outer surface side of the side wall constituting the ice storage. It is accommodated in the casing, The inside of the ice storage and the inside of the casing are mutually connected through the said through-hole.
[0006]
According to the ice carry-out device according to the present invention, the inside of the casing that houses the drive device is at the same temperature as the inside of the ice storage that communicates with each other through the through hole. For this reason, when the electric motor constituting the drive device is not driven, the drive device is cooled to a temperature equivalent to the temperature in the ice storage, and the temperature of the drive device equipped with this type of ice take-out device of the related art is exceeded. Maintained at low temperature. When the electric motor of the drive device in this state is driven to deliver ice blocks, the temperature of the drive device does not become as high as the conventional one because the electric motor rises by the same temperature range as before. For this reason, since the temperature rise of the ice lump delivery screw connected to the output shaft of the drive device is greatly suppressed, it is possible to prevent the ice lump in the ice storage in contact with the ice lump delivery screw from melting. Therefore, a high quality ice block can be provided.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an open cell type ice making machine to which an ice carry-out device according to the present invention is applied.
[0008]
This open cell type ice making machine is provided with a housing 10, and an ice storage R1 and a machine room R2 are formed in the housing 10 in the vertical direction. The ice storage R1 has a bottom wall 11 and a front wall 12 provided with a heat insulating member 15 on the lower surface, and an ice making device 20 that generates and discharges ice blocks into the ice storage R1 is provided above the ice storage R1. In addition, an ice carry-out device 30 is provided at the bottom of the ice storage R1 to carry out the ice blocks inside. In the machine room R2, a refrigerator (not shown) including a compressor, a condenser, and a cooling fan for supplying a cooled refrigerant to the ice making device 20 is provided. The housing 10 is open upward and forward, and a top plate 13 that covers the upper opening 10a of the housing 10 is detachably assembled to the upper portion of the housing 10. A front door 14 that covers the part opening 10b is assembled to be freely opened and closed. A heat insulating member 15 is provided on the lower surface of the top plate 13.
[0009]
The ice carry-out device 30 includes an ice carrying bowl 31, an ice lump delivery screw 32, and a drive device 40. The ice transport rod 31 is formed in a substantially U-shaped cross section that opens upward in the bottom wall 11 of the ice storage R1 and is inclined upward from the lowermost portion of the bottom wall 11. An ice carry-out port 31a is formed at the upper end of the ice carrying bowl 31 so as to open downward. Note that the ice carry-out port 31 a may be formed at an intermediate portion of the ice carrying bowl 31.
[0010]
An ice lump delivery screw 32 composed of a rotation shaft 32a and a screw-like blade 32b provided on the outer peripheral surface of the ice conveyance rod 31 extends in the longitudinal direction and is rotatably arranged. The rotating shaft 32a is formed of a metal material (for example, stainless steel). The upper end portion of the rotating shaft 32a passes through the side wall 12 that closes the front end of the ice carrying basket 31 and protrudes to the outside of the ice storage R1, and the protruding portion of the rotating shaft 32a has a driving device 40 provided on the outer surface of the side wall 12. The output shaft 44 is detachably connected. A pair of notches 32c provided at the upper end of the rotating shaft 32a and a pin 44a provided at the tip of the small-diameter output shaft 44 fitted into the upper end of the rotating shaft 32a corresponding to the notch 32c are detachable. It is designed to engage. A gap is formed between the rotating shaft 32 a and the side wall 12. On the other hand, the lower end of the rotating shaft 32 a is pivotally supported by a side wall 31 b provided at the lower end of the ice conveying basket 31.
[0011]
The drive device 40 has an electric motor 41, and the rotational drive of the electric motor 41 is transmitted to the output shaft 44 via a gear box 42 and a speed reducer 43. That is, when the electric motor 41 is operated, the rotating shaft 32a is rotated in a predetermined direction at a predetermined rotational speed.
[0012]
The driving device 40 is accommodated in a casing 50 that is airtightly assembled to the outer surface of the side wall 12 constituting the ice storage R1. Accordingly, the drive device 40 (electric motor 41) is isolated from the outside air of the ice storage R1, and the ice storage R1 and the casing 50 are communicated with each other through the gap.
[0013]
In the open cell type ice making machine configured as described above, when the driving device 40 (electric motor 41) is not in operation, the cold air in the ice storage R1 flows into the casing 50 through the gap as shown by the arrow in FIG. The casing 50 does not flow outside. For this reason, the inside of the casing 50 is efficiently cooled and becomes substantially the same temperature as in the ice storage R1, and the driving device 40 becomes substantially the same temperature as that in the ice storage R1 and is maintained at that temperature. On the other hand, if the operating time of the driving device 40 is the same short time as the conventional one, the work amount of the driving device 40 is almost the same. Therefore, when discharging the ice block, the temperature of the drive device 40 itself at the start of operation can be kept sufficiently low even if the drive device 40 is operated for a short time, and the temperature range of the rise is almost the same. Its temperature is not as high as before. As a result, an increase in the temperature of the ice lump delivery screw 32 due to heat transfer from the driving device 40 to the ice lump delivery screw 32 is suppressed, so that the ice mass in the ice storage R1 in contact with the ice lump delivery screw 32 is melted. Can be prevented, and high quality ice blocks can be provided.
[0014]
Further, in the above open cell type ice making machine, when the front cover 14 is opened for maintenance or the like immediately after the operation of the drive device 40 is completed, the drive device 40 is covered with the casing 50, so that the operator can It is possible to prevent direct contact with the driving device 40 having a high temperature.
[0015]
The ice carry-out device according to the present invention is not limited to an open cell type ice making machine, but can be applied to other types of ice making machines and ice storages that only supply and store externally generated ice blocks.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of an open cell ice making machine to which an ice carry-out device according to the present invention is applied.
FIG. 2 is an enlarged cross-sectional view of the ice carry-out device shown in FIG.
FIG. 3 is an enlarged cross-sectional view of the ice carrying device in an open cell type ice making machine to which an ice carrying device according to the prior art is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Housing, 10a ... Top opening, 10b ... Front part opening, 11 ... Bottom wall, 12 ... Side wall, 13 ... Top plate, 14 ... Front door, 15 ... Thermal insulation member, 20 ... Ice making apparatus, 30 ... Ice carrying-out apparatus, DESCRIPTION OF SYMBOLS 31 ... Ice conveying bowl, 31a ... Ice carrying exit, 31b ... Side wall, 32 ... Ice lump delivery screw, 32a ... Rotating shaft, 32b ... Screw-shaped blade | wing, 32c ... Notch, 40 ... Drive apparatus, 41 ... Electric motor, 42 ... Gearbox, 43 ... Reducer, 44 ... Output shaft, 44a ... Pin, 50 ... Casing, R1 ... Ice storage, R2 ... Machine room.

Claims (1)

貯氷庫を構成する底壁の内面側にて同底壁の最下部から上方に傾斜して形成された上方の部位に氷送出口を有する氷搬送樋と、前記氷搬送樋に沿って傾斜して回転可能に配設された氷塊送出スクリューと、前記貯氷庫の側壁の外面側に配設された駆動装置を備え、前記駆動装置の出力軸と前記氷塊送出スクリューの回転軸とは前記貯氷庫の側壁に設けた貫通孔を通して互いに連結されている氷搬出装置であり、前記駆動装置は前記貯氷庫を構成する側壁の外面側にて気密的に組み付けたケーシング内に収容されていて、前記貯氷庫の内部と前記ケーシングの内部とは前記貫通孔を通して互いに連通していることを特徴とする貯氷庫における氷搬出装置。 An ice transporting bowl having an ice delivery outlet at an upper portion formed by inclining upward from the bottom of the bottom wall on the inner surface side of the bottom wall constituting the ice storage; and tilting along the ice transporting bowl. And an ice lump delivery screw disposed rotatably, and a drive device disposed on the outer surface side of the side wall of the ice storage, wherein the output shaft of the drive device and the rotation axis of the ice lump delivery screw are the ice storage. The ice carrying device is connected to each other through a through-hole provided in the side wall of the ice, and the driving device is housed in a casing assembled airtight on the outer surface side of the side wall constituting the ice storage, and the ice storage device An ice carry-out device in an ice storage , wherein the inside of the storage and the inside of the casing communicate with each other through the through hole .
JP2001204740A 2001-07-05 2001-07-05 Ice carry-out device in ice storage Expired - Fee Related JP4726344B2 (en)

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Publication number Priority date Publication date Assignee Title
KR101272398B1 (en) * 2006-09-20 2013-06-07 엘지전자 주식회사 Joint for a ice bank and ice bank using the same for a refrigerator

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JPS6099976A (en) * 1984-10-08 1985-06-03 株式会社日立製作所 Refrigerator with automatic ice supply device
JPH11237153A (en) * 1998-02-19 1999-08-31 Hoshizaki Electric Co Ltd Ice block discharger

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