JP2004138334A - Drainage structure for refrigerator - Google Patents

Drainage structure for refrigerator Download PDF

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Publication number
JP2004138334A
JP2004138334A JP2002304029A JP2002304029A JP2004138334A JP 2004138334 A JP2004138334 A JP 2004138334A JP 2002304029 A JP2002304029 A JP 2002304029A JP 2002304029 A JP2002304029 A JP 2002304029A JP 2004138334 A JP2004138334 A JP 2004138334A
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JP
Japan
Prior art keywords
elbow pipe
pipe
insulation material
elbow
drainage
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
Application number
JP2002304029A
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Japanese (ja)
Inventor
Akira Itakura
板倉 亮
Ryoichi Onda
恩田 良一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoshizaki Electric Co Ltd
Original Assignee
Hoshizaki Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoshizaki Electric Co Ltd filed Critical Hoshizaki Electric Co Ltd
Priority to JP2002304029A priority Critical patent/JP2004138334A/en
Publication of JP2004138334A publication Critical patent/JP2004138334A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/143Collecting condense or defrost water; Removing condense or defrost water characterised by means to fix, clamp, or connect water pipes or evaporation trays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

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  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an insulation material from leaking from a mounting position of an elbow pipe by preventing dew condensation from being generated on the elbow pipe, in a drainage structure for a refrigerator. <P>SOLUTION: A flange part 5a of the elbow pipe 5 is attached onto an opening part 1a of an inner housing 1, and a secondary end of an elbow pipe body 5b is inserted in a circular hole 7a at a ceiling part of a guide case 5. The insulation material 3 is then disposed between the inner housing 1 and an outer housing 2. Lastly, a water receiving tray 4 is connected on a primary side of the elbow pipe 5, and a drainage pipe 6 is connected with a secondary side of the elbow pipe 5 to form a drainage passage. Almost the whole elbow pipe can be covered with the insulation material, therefore generation of the dew condensation at the elbow pipe can be prevented. Insulation material thickness at the elbow pipe position can be achieved, thus improving insulation. A gap between the elbow pipe and the guide case ceiling part can be reduced, which can facilitate covering with a sealing material, and can complete preventing the insulation material from leaking from the gap when the effervescent insulation material foams. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、冷蔵庫・冷凍庫などの冷却貯蔵庫において、除霜時等に庫内で生じた排水を外部へ排出するための構造の改良に関する。
【0002】
【従来の技術】
特許文献1には、冷蔵庫内で生じた排水を、庫内に設けた水受樋で集め、これを背面側の壁部を貫通させて設けた排水樋を通じて庫外へ導き、外部に設けた排水パイプ中に排出するようにした排水構造が記載されている。また特許文献2には、冷却庫内で生じた排水を、庫内に設けたトレイに集め、これを背面壁の内部を貫通させて設けた排水管を通じて外部へ排出するようにした排水構造が記載されている。
【0003】
特許文献1の排水構造は、排水パイプが外部に露出するため、好ましくない。特許文献2の排水構造は、排水管が露出しないが、背面壁の内部に排水管を埋設するものであるため、構造が複雑であり、製作性が悪い。
【0004】
そこで図4に示すように、壁部が内ハウジング1と外ハウジング2との間に断熱材3を配して成る冷却貯蔵庫Rにおいて、外ハウジング2の内表面と断熱材3との間に案内ケース10を設け、この案内ケース10内に排水管6を収納することにより、排水管6を外部に露出させないようにする構造が提案されている。
【0005】
かかる排水構造をより詳細に説明すると、図5及び図6に示す如く、内ハウジング1の適所に凹部1bを設け、この凹部1bの奥に形成した開孔部1aに、エルボ管5の一次側のフランジ部5aを取り付ける。また、外ハウジング2の内表面と断熱材3との間に設けた案内ケース10の正面開口部10aに、エルボ管5の本体部5bを挿入する。そして、冷却貯蔵庫R内で生じた排水を水受けトレイ4で集めたのち、これをエルボ管5へ導き、エルボ管5の二次側に接続した排水管6を通じて、外部へ送り出すように成されている。
【0006】
【特許文献1】
実開昭55−135282号公報
【特許文献2】
実開昭62−31281号公報
【0007】
【発明が解決しようとする課題】
前記図4乃至図6に記載した従来の排水構造にあっては、エルボ管5の本体部5bの大部分が案内ケース10内において外気に露出している。また、内ハウジング1におけるエルボ管5の取付箇所に凹部1bを形成しており、この凹部1bと案内ケース10との間では、断熱材3の層厚みが小さくなっている。それ故、エルボ管5の部分で結露が生じやすいうえに、断熱性が悪いという問題が生じている。
【0008】
さらに、エルボ管5を案内ケース10の正面部から挿入する構成を採っているから、案内ケース10の正面開口部10aは、図5に示すとおり、長孔状に形成する必要がある。このため、エルボ管5を案内ケース10内へ挿入したのちに行う、エルボ管5と正面開口部10aとの間の目張り作業が難しくなっている。その上、エルボ管5と長孔状の正面開口部10aとの隙間が大きいから、断熱材3として発泡性樹脂を使用する場合、発泡時に合成樹脂が上記隙間から漏出するおそれがあった。
【0009】
【課題を解決するための手段】
前述した従来の問題を解決するために本発明が採用した冷却貯蔵庫の排水構造の特徴とするところは、壁部が内ハウジングと外ハウジングとの間に断熱材を配して成り、この壁部に庫内で生じた排水を外部へ導出するためのエルボ管を設けた冷却貯蔵庫において、内ハウジングに形成した排出孔に前記エルボ管の一次側を取り付け、外ハウジングの内表面と断熱材との間に配設した案内ケースの天井部に、前記エルボ管の二次側を取り付けたことである。
【0010】
前記の如く構成した本発明の排水構造は、エルボ管のほぼ全体が、内ハウジングと外ハウジングとの間を充填する断熱材で覆われることとなり、外部に露出するのは、案内ケースの天井部へ取り付けられる二次側の一部分だけとなる。すなわち、エルボ管のほぼ全体が断熱的に保持されるから、エルボ管の表面に結露が生じるのを確実に防止できる。案内ケースに形成する開孔は、エルボ管の二次側を取り付けることが可能な大きさの円孔であればよく、長孔にする必要が無いから、エルボ管二次側と案内ケース円孔との隙間を小さくすることが可能である。それ故、上記隙間を塞ぐための目張り作業が容易になり、断熱材を発泡性合成樹脂とした場合において、合成樹脂を発泡させた時の上記隙間からの漏出を抑制できる。
【0011】
【発明の実施の形態】
本発明に係る冷却貯蔵庫の排水構造(以下「本発明構造」と言う)の一実施形態を、図1乃至図3を用いて説明する。本発明が適用される冷却貯蔵庫とは、冷蔵庫、冷凍庫、保冷庫などが挙げられ、低温に保持された庫内で生じた水を外部へ排出する機構を備えるものであれば、本発明の適用対象となり得る。また本発明構造は、冷却貯蔵庫の背面壁に設けるのが一般的であるが、左右いずれかの側壁や、場合によっては正面壁に設けることも可能である。
【0012】
図面に示すように、冷却貯蔵庫の庫内空間を形成する内ハウジング1は、開孔部1aを有する凹部1bが適所に設けられたものであって、この開孔部1aにエルボ管5の一次側に形成したフランジ部5aが取り付けられる。他方、冷却貯蔵庫の外郭を形成する外ハウジング2は、所要箇所に切欠部2aが形成され、この切欠部2aに合わせて、外ハウジング2の内表面に、排水管6を収納するための案内ケース7が一体的に配設される。案内ケース7は、中空柱状の形態を備え、その天井部が、内ハウジング1の開孔部1aより下側に位置するよう設定されると共に、該天井部に、エルボ管5における本体部5bの二次側を挿入させる円孔7aが形成されている。
【0013】
かかる構成の本発明構造の組み立ては、例えば次のような手順で行われる。まずはじめに、内ハウジング1の開孔部1aに、エルボ管5のフランジ部5aをなるべく水密的に取り付ける。なお、上記開孔部1aに対するエルボ管フランジ部5aの取り付けは、内ハウジング1の内面側からでも外面側からでもよい。次いで、エルボ管本体部5bにおける二次側端部付近に、図3(A)に示す如く目張り材8をあらかじめ装着しておく。引き続き、外ハウジング2と一体の案内ケース7を、エルボ管5に対し下方から接近させ、図3(B)の如く、案内ケース5の天井部に形成した円孔7a内へ、エルボ管本体部5bの二次側下端部を挿入させる。このとき、目張り材8によって、エルボ管5と案内ケース円孔7aとの間の隙間が確実に閉塞される。しかる後、内ハウジング1と外ハウジング2との間へ断熱材3を配置する。断熱材3として例えば発泡性合成樹脂を使用すれば、発泡処理により、内ハウジング1と外ハウジング2との間隙を容易に充填することが可能である。最後に、冷却貯蔵庫の庫内において、排水を集める水受けトレイ4をエルボ管5の一次側に接続し、案内ケース7内において、排水管6をエルボ管5の二次側に接続すれば、庫内で生じた排水を外部へ排出する排水経路が形成される。
【0014】
【発明の効果】
本発明構造は、エルボ管の二次側を、案内ケースの天井部に取り付ける構成を採用したことにより、エルボ管のほぼ全体を断熱材で覆うことができ、外部に露出するのをごく一部に限れるので、エルボ管における結露の発生を防止できる。また、エルボ管の位置における断熱材の層厚みを確保できるから、断熱性が向上する。エルボ管と案内ケース天井部の円孔との隙間を小さくできるから、目張り材による閉塞が容易である。よって、断熱材を発泡性合成樹脂とした場合、この断熱材が発泡するときに上記隙間から漏出するのを確実に阻止できる。なお、エルボ管に排水管を接続する作業は、断熱材を内ハウジングと外ハウジングとの間に充填した後に、案内ケース内で行えるから、作業性が優れている。
【図面の簡単な説明】
【図1】本発明の一実施形態に関するものであって、冷却貯蔵庫の壁部に設けた本発明構造を示す側面断面図である。
【図2】本発明の一実施形態に関するものであって、エルボ管、内ハウジング及び外ハウジングを分解して示す要部の斜視図である。
【図3】本発明の一実施形態に関するものであって、本発明構造の組立要領を説明するものであり、図(A)はエルボ管の二次側を案内ケースに接続する前の状態を示す側面断面図、図(B)はエルボ管の二次側を案内ケースの天井部に接続した状態を示す側面断面図である。
【図4】従来の冷却貯蔵庫の一例を示す側面断面図である。
【図5】冷却貯蔵庫の壁部に設けた従来の排水構造を示す側面断面図である。
【図6】従来の排水構造に関するものであって、エルボ管、内ハウジング及び外ハウジングを分解して示す要部の斜視図である。
【符号の説明】
1…内ハウジング 1a…開孔部 1b…凹部 2…外ハウジング 2a…切欠部 3…断熱材 4…水受けトレイ 5…エルボ管 6…排水管 7…案内ケース 7a…円孔 8…目張り材 R…冷却貯蔵庫
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a structure for discharging drainage generated in a refrigerator or the like to the outside in a cooling storage such as a refrigerator or a freezer during defrosting.
[0002]
[Prior art]
In Patent Literature 1, drainage generated in a refrigerator is collected by a water receiving gutter provided in the refrigerator, guided to the outside of the refrigerator through a drain gutter provided through a rear wall portion, and provided outside. A drainage structure designed to discharge into a drainage pipe is described. Further, Patent Document 2 discloses a drainage structure in which wastewater generated in a cooling storage is collected in a tray provided in the storage and discharged to the outside through a drain pipe provided through the inside of the rear wall. Has been described.
[0003]
The drainage structure of Patent Document 1 is not preferable because the drainage pipe is exposed to the outside. The drainage structure of Patent Document 2 does not expose the drainage pipe, but since the drainage pipe is buried inside the back wall, the structure is complicated and the manufacturability is poor.
[0004]
Therefore, as shown in FIG. 4, in the cooling storage R in which the heat insulating material 3 is arranged between the inner housing 1 and the outer housing 2 in the wall portion, the guide is provided between the inner surface of the outer housing 2 and the heat insulating material 3. A structure has been proposed in which a case 10 is provided and the drainage pipe 6 is stored in the guide case 10 so that the drainage pipe 6 is not exposed to the outside.
[0005]
The drainage structure will be described in more detail. As shown in FIG. 5 and FIG. Is mounted. Further, the main body 5b of the elbow tube 5 is inserted into the front opening 10a of the guide case 10 provided between the inner surface of the outer housing 2 and the heat insulating material 3. After collecting the wastewater generated in the cooling storage R by the water receiving tray 4, the collected wastewater is guided to the elbow pipe 5, and is sent to the outside through the drain pipe 6 connected to the secondary side of the elbow pipe 5. ing.
[0006]
[Patent Document 1]
Japanese Utility Model Publication No. 55-135282 [Patent Document 2]
Japanese Utility Model Publication No. Sho 62-31281
[Problems to be solved by the invention]
In the conventional drainage structure shown in FIGS. 4 to 6, most of the main body 5b of the elbow pipe 5 is exposed to outside air in the guide case 10. In addition, a concave portion 1b is formed in the inner housing 1 at a place where the elbow tube 5 is attached, and between the concave portion 1b and the guide case 10, the layer thickness of the heat insulating material 3 is small. Therefore, there is a problem that dew condensation easily occurs at the elbow tube 5 and heat insulation is poor.
[0008]
Further, since the elbow tube 5 is inserted from the front of the guide case 10, the front opening 10a of the guide case 10 needs to be formed in a long hole shape as shown in FIG. For this reason, it is difficult to perform the seaming work between the elbow tube 5 and the front opening 10a, which is performed after the elbow tube 5 is inserted into the guide case 10. In addition, since the gap between the elbow tube 5 and the elongated front opening 10a is large, when a foamable resin is used as the heat insulating material 3, there is a possibility that the synthetic resin leaks from the gap during foaming.
[0009]
[Means for Solving the Problems]
The feature of the cooling storage drainage structure adopted by the present invention to solve the above-mentioned conventional problems is that the wall portion is provided with a heat insulating material between the inner housing and the outer housing, In a cooling storage provided with an elbow pipe for leading out the drainage generated in the refrigerator to the outside, the primary side of the elbow pipe is attached to a discharge hole formed in the inner housing, and the inner surface of the outer housing and the heat insulating material are connected. The secondary side of the elbow pipe is attached to the ceiling of the guide case disposed therebetween.
[0010]
In the drainage structure of the present invention configured as described above, almost the entire elbow pipe is covered with a heat insulating material that fills the space between the inner housing and the outer housing. Only a part of the secondary side attached to the That is, since almost the entire elbow tube is adiabatically held, it is possible to reliably prevent dew condensation from occurring on the surface of the elbow tube. The opening formed in the guide case only needs to be a circular hole large enough to attach the secondary side of the elbow pipe, and it is not necessary to make it an elongated hole. Can be reduced. Therefore, the seaming work for closing the gap is facilitated, and when the heat insulating material is a foamable synthetic resin, leakage from the gap when the synthetic resin is foamed can be suppressed.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a drainage structure of a cooling storage according to the present invention (hereinafter, referred to as “the present invention structure”) will be described with reference to FIGS. 1 to 3. The cooling storage to which the present invention is applied includes a refrigerator, a freezer, a cool storage, and the like, as long as it has a mechanism for discharging water generated in the refrigerator kept at a low temperature to the outside, the application of the present invention. Can be targeted. Further, the structure of the present invention is generally provided on the back wall of the cooling storage, but it can also be provided on the left or right side wall or, in some cases, on the front wall.
[0012]
As shown in the drawing, an inner housing 1 forming a space inside a cooling storage is provided with a concave portion 1b having an opening 1a at an appropriate position, and a primary part of an elbow pipe 5 is provided in the opening 1a. The flange portion 5a formed on the side is attached. On the other hand, the outer housing 2 forming the outer shell of the cooling storage has a notch 2a formed at a required location, and a guide case for accommodating the drainage pipe 6 on the inner surface of the outer housing 2 in accordance with the notch 2a. 7 are integrally provided. The guide case 7 has a hollow columnar shape, the ceiling of which is set to be lower than the opening 1 a of the inner housing 1, and the ceiling of the main case 5 b of the elbow tube 5. A circular hole 7a for inserting the secondary side is formed.
[0013]
The assembly of the structure of the present invention having such a configuration is performed, for example, in the following procedure. First, the flange portion 5a of the elbow pipe 5 is attached to the opening portion 1a of the inner housing 1 as watertightly as possible. The attachment of the elbow pipe flange 5a to the opening 1a may be performed from the inner surface side or the outer surface side of the inner housing 1. Next, as shown in FIG. 3 (A), a filling material 8 is attached in advance near the secondary side end of the elbow tube main body 5b. Subsequently, the guide case 7 integrated with the outer housing 2 is brought close to the elbow tube 5 from below, and the elbow tube main body is inserted into a circular hole 7a formed in the ceiling portion of the guide case 5 as shown in FIG. Insert the lower end of the secondary side of 5b. At this time, the gap between the elbow pipe 5 and the guide case circular hole 7a is securely closed by the sealing material 8. Thereafter, the heat insulator 3 is disposed between the inner housing 1 and the outer housing 2. If a foamable synthetic resin is used as the heat insulating material 3, for example, the gap between the inner housing 1 and the outer housing 2 can be easily filled by foaming. Finally, if the water receiving tray 4 for collecting wastewater is connected to the primary side of the elbow pipe 5 in the cooling storage, and the drainage pipe 6 is connected to the secondary side of the elbow pipe 5 in the guide case 7, A drainage path for discharging the wastewater generated in the refrigerator to the outside is formed.
[0014]
【The invention's effect】
The structure of the present invention employs a configuration in which the secondary side of the elbow tube is attached to the ceiling of the guide case, so that almost the entire elbow tube can be covered with the heat insulating material, and only a part of the elbow tube is exposed to the outside. , It is possible to prevent the occurrence of dew condensation in the elbow tube. Further, since the layer thickness of the heat insulating material at the position of the elbow tube can be ensured, the heat insulating property is improved. Since the gap between the elbow pipe and the circular hole in the ceiling of the guide case can be made small, it is easy to close with the liner. Therefore, when the heat insulating material is a foamable synthetic resin, it is possible to reliably prevent the heat insulating material from leaking out of the gap when foaming. The work of connecting the drain pipe to the elbow pipe can be performed in the guide case after filling the heat insulating material between the inner housing and the outer housing, so that the workability is excellent.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an embodiment of the present invention provided on a wall of a cooling storage, which relates to an embodiment of the present invention.
FIG. 2 relates to one embodiment of the present invention and is an exploded perspective view of an essential part showing an elbow tube, an inner housing, and an outer housing.
FIG. 3 relates to an embodiment of the present invention and explains an assembling procedure of the structure of the present invention. FIG. 3 (A) shows a state before the secondary side of the elbow tube is connected to the guide case. FIG. 2B is a side sectional view showing a state where the secondary side of the elbow pipe is connected to the ceiling of the guide case.
FIG. 4 is a side sectional view showing an example of a conventional cooling storage.
FIG. 5 is a side sectional view showing a conventional drainage structure provided on a wall of a cooling storage.
FIG. 6 relates to a conventional drainage structure, and is an exploded perspective view of a main part showing an elbow pipe, an inner housing, and an outer housing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Inner housing 1a ... Opening part 1b ... Concave part 2 ... Outer housing 2a ... Notch part 3 ... Heat insulation material 4 ... Water receiving tray 5 ... Elbow pipe 6 ... Drainage pipe 7 ... Guide case 7a ... Circular hole 8 ... Filling material R … Cool storage

Claims (1)

壁部が内ハウジングと外ハウジングとの間に断熱材を配して成り、この壁部に庫内で生じた排水を外部へ導出するためのエルボ管を設けた冷却貯蔵庫において、内ハウジングに形成した排出孔に前記エルボ管の一次側を取り付け、外ハウジングの内表面と断熱材との間に配設した案内ケースの天井部に、前記エルボ管の二次側を取り付けたことを特徴とする冷却貯蔵庫の排水構造。In a cooling storage having a wall portion provided with a heat insulating material between the inner housing and the outer housing, and an elbow pipe for leading drainage generated in the refrigerator to the outside to the outside, the wall portion is formed in the inner housing. The primary side of the elbow pipe is attached to the discharged hole, and the secondary side of the elbow pipe is attached to the ceiling of a guide case disposed between the inner surface of the outer housing and the heat insulating material. Drainage structure for cooling storage.
JP2002304029A 2002-10-18 2002-10-18 Drainage structure for refrigerator Pending JP2004138334A (en)

Priority Applications (1)

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JP2002304029A JP2004138334A (en) 2002-10-18 2002-10-18 Drainage structure for refrigerator

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Application Number Priority Date Filing Date Title
JP2002304029A JP2004138334A (en) 2002-10-18 2002-10-18 Drainage structure for refrigerator

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JP2004138334A true JP2004138334A (en) 2004-05-13

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JP2002304029A Pending JP2004138334A (en) 2002-10-18 2002-10-18 Drainage structure for refrigerator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103759486A (en) * 2014-02-17 2014-04-30 合肥美的电冰箱有限公司 Box liner of refrigeration equipment and refrigerator provided with same
CN113865196A (en) * 2020-06-30 2021-12-31 青岛海尔电冰箱有限公司 Refrigerator and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103759486A (en) * 2014-02-17 2014-04-30 合肥美的电冰箱有限公司 Box liner of refrigeration equipment and refrigerator provided with same
CN113865196A (en) * 2020-06-30 2021-12-31 青岛海尔电冰箱有限公司 Refrigerator and manufacturing method thereof
CN113865196B (en) * 2020-06-30 2023-01-24 青岛海尔电冰箱有限公司 Refrigerator and manufacturing method thereof

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