JPH0375477A - Cooling unit - Google Patents

Cooling unit

Info

Publication number
JPH0375477A
JPH0375477A JP21331789A JP21331789A JPH0375477A JP H0375477 A JPH0375477 A JP H0375477A JP 21331789 A JP21331789 A JP 21331789A JP 21331789 A JP21331789 A JP 21331789A JP H0375477 A JPH0375477 A JP H0375477A
Authority
JP
Japan
Prior art keywords
defrosting
evaporator
plate
cooling unit
cooling
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
JP21331789A
Other languages
Japanese (ja)
Inventor
Satoshi Nakagawa
智 中川
Gen Sasao
笹尾 玄
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
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 Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP21331789A priority Critical patent/JPH0375477A/en
Publication of JPH0375477A publication Critical patent/JPH0375477A/en
Pending legal-status Critical Current

Links

Landscapes

  • Defrosting Systems (AREA)

Abstract

PURPOSE:To accelerate defrosting, to efficiently cool and defrost by forming a curved surface on a reflecting plate, forming a mirror-finish on its inner face, and providing a structure for defrosting for cooling units sufficiently in a short period. CONSTITUTION:A reflection plate 13a is formed in a curved surface, and its inner face is mirror-finished. Supply of refrigerant to a tube 15a of an evaporator 15 is shut OFF at the time of defrosting, a fan motor 8 is simultaneously stopped, the plate 13 is closed, and the air does not pass the evaporator 15. Then, a defrosting heater 16 is energized to start defrosting. The plate 13a is closed to store the heat of the heater 16 in the cooling unit to accelerate defrosting and the heat of the heater 16 is rapidly and efficiently radiated to the sections of the evaporator 15 by mirror-surface formed in the curved surface of the plate 13a to be defrosted in a short period. Thus, it can be efficiently cooled and defrosted in a short period.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はプレハブ冷蔵庫等の天壁に設けられる冷却ユニ
ットに関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cooling unit installed on the top wall of a prefabricated refrigerator or the like.

グコイルのカタログに記載されるN O−903UHA
で第4図、第6図、第6図を用いて説明する。第4図は
従来の冷却ユニットの縦断面図、第6図は従来の冷却ユ
ニットのダンパー側から見た斜視図、第6図は従来の冷
却ユニ7)の横断面図である。
N O-903UHA listed in the Gucoil catalog
This will be explained using FIGS. 4, 6, and 6. FIG. 4 is a longitudinal cross-sectional view of a conventional cooling unit, FIG. 6 is a perspective view of the conventional cooling unit as seen from the damper side, and FIG. 6 is a cross-sectional view of a conventional cooling unit 7).

第4図、第6図、第6図において、1はファンパネルで
天板1aとファン用オリフィス1bを有する側板1Cよ
り成形されている。2はサイドパネルで左板2aと右板
2bより成シ立っている。
In FIGS. 4, 6, and 6, a fan panel 1 is formed of a top plate 1a and a side plate 1C having a fan orifice 1b. 2 is a side panel which is made up of a left panel 2a and a right panel 2b.

3はダンパーでダンパーフィン3aとダンパー天板3b
とダンパー底板3Cとダンパー左板3dとダンパー右板
3eから成り立っている。4はドレンパンで前記ファン
パネル1.サイドパネル2の左板2aと右板2b、ダン
パー3及びドレンパン4と共に外枠を構成する。6は冷
却用エバポレータで配管6aとフィン5bとエンドプレ
ート6CよりIll威され、前記の外枠を構成するファ
ンパネル1とドレンパン4は冷却用エバポレータ5のエ
ンドブレー)5aに塩9付けられている。また、ダンパ
73はサイドパネル2の左板2a、右板2bを介してエ
バポレータ5のエンドブレー)5cに取付けられている
。6は除霜用ヒータで冷却用エバポレータ6に取付けら
れている。7はモータマウントでファンパネル1を介し
て冷却用エバボレ−夕6のエンドプレート5Cに取付け
られている。
3 is a damper with damper fins 3a and damper top plate 3b
It consists of a damper bottom plate 3C, a left damper plate 3d, and a right damper plate 3e. 4 is a drain pan that connects the fan panel 1. The left plate 2a and right plate 2b of the side panel 2, the damper 3, and the drain pan 4 constitute an outer frame. Reference numeral 6 denotes a cooling evaporator, which is connected to piping 6a, fins 5b, and end plates 6C, and the fan panel 1 and drain pan 4 that constitute the outer frame are attached with salt 9 to the end brake 5a of the cooling evaporator 5. . Further, the damper 73 is attached to the end brake 5c of the evaporator 5 via the left plate 2a and right plate 2b of the side panel 2. A defrosting heater 6 is attached to the cooling evaporator 6. A motor mount 7 is attached to the end plate 5C of the cooling evaporator 6 via the fan panel 1.

8は7アンモータでモータマウント7に取付けられてい
る。9はファンで7アンモータ8に取付けられている。
8 is a 7 motor and is attached to the motor mount 7. 9 is a fan attached to 7 and motor 8.

1oはドレンパンパイプでドレンパン4に取付けられて
いる。前ハンガーパー11aと後ハンガーパー11bは
共に冷却用エバポレータ5のエンドプレー)5aに取付
けられており、このハンガーパーによって冷却ユニット
は冷蔵庫等の天壁に懸吊される。
1o is a drain pan pipe attached to the drain pan 4. Both the front hanger par 11a and the rear hanger par 11b are attached to the end plate 5a of the cooling evaporator 5, and the cooling unit is suspended from the ceiling wall of a refrigerator or the like by the hanger par.

以上のように構成された冷却ユニ7)について、以下そ
の動作について説明する。
The operation of the cooling unit 7) configured as described above will be explained below.

まず、冷却時にかいて、エバポレータ6の配管6aを冷
媒が流れ、ファンモータ8の動作によって、ファン9が
回転し、風圧によってダンパーフィン3aは開き、空気
はエバポレータ6を通過しファン用オリフィス1bを通
って庫内へ吐出される。エバポレータ5を空気が通過す
る時に配管6a内の冷媒が蒸発し、その蒸発潜熱によっ
て空気は冷却される。冷却が進むにつれ空気内に含まれ
る水蒸気がエバポレータ6の表面に霜となって凝縮する
。霜が蓄積するに従い、エバポレータ6を通過する空気
量は次第に減少し、冷媒と空気の間の熱交換もそれにつ
れて減少するため、冷却能力が低下してくる。これを解
除するため一定期間冷却後、除霜タイマー(図示せず)
等の動作によって、エバポレータ6の配管5aへの冷媒
の供給が遮断され、同時にファンモータ8の回転が停止
して、ダンパーフィン3aは閉じると共に、空気はエバ
ポレータ6を通過しなくなる。次に除霜用ヒータ6が通
電し、除霜が開始する。なお、ダンパー3はダンパーフ
ィン3aが閉じることによう、除霜用ヒータ6の熱を冷
却ユニット内にこもらせ、除霜を促進させている。除霜
用ヒータ6の発熱によシ、エバポレータ50表面に蓄積
した霜は溶け、水となってドレンパン4に溜少さらにド
レンパンパイプ10を介して排水される。除霜の終了は
通常エバポレータ5等に設けられた除霜終了検知用サー
モスタット(図示せず)等によって温度的に検知される
。除霜が終了すると、前述した冷却時の動作が再開され
、冷却と除霜が除霜タイマーで設定された一定周期でく
シ返される。
First, during cooling, refrigerant flows through the piping 6a of the evaporator 6, the fan 9 rotates due to the operation of the fan motor 8, the damper fins 3a open due to wind pressure, and the air passes through the evaporator 6 and enters the fan orifice 1b. and is discharged into the refrigerator. When the air passes through the evaporator 5, the refrigerant in the pipe 6a evaporates, and the air is cooled by the latent heat of evaporation. As cooling progresses, water vapor contained in the air condenses as frost on the surface of the evaporator 6. As frost accumulates, the amount of air passing through the evaporator 6 gradually decreases, and the heat exchange between the refrigerant and air also decreases accordingly, resulting in a decrease in cooling capacity. To release this, after a certain period of cooling, a defrost timer (not shown)
Through these operations, the supply of refrigerant to the piping 5a of the evaporator 6 is cut off, and at the same time, the rotation of the fan motor 8 is stopped, the damper fins 3a are closed, and air no longer passes through the evaporator 6. Next, the defrosting heater 6 is energized and defrosting begins. In addition, when the damper fins 3a close, the damper 3 traps the heat of the defrosting heater 6 in the cooling unit to promote defrosting. Due to the heat generated by the defrosting heater 6, the frost accumulated on the surface of the evaporator 50 melts and becomes water, which accumulates in the drain pan 4 and is further drained through the drain pan pipe 10. The end of defrosting is usually detected temperature-wise by a defrosting end detection thermostat (not shown) provided on the evaporator 5 or the like. When defrosting is completed, the cooling operation described above is restarted, and cooling and defrosting are repeated at a constant cycle set by the defrosting timer.

発明が解決しようとする課題 しかしながら上記のような構成では、除霜時に霜が十分
に除去されず、除霜用ヒータから離れた所に霜が残留し
たま筐、冷却運転に入シ時間が経つと共に霜が大きく成
長して冷却能力の低下を招く原因となる。
Problems to be Solved by the Invention However, with the above configuration, the frost is not removed sufficiently during defrosting, and the frost remains in areas away from the defrosting heater, resulting in a long time before the cooling operation is started. At the same time, frost grows large and causes a decrease in cooling capacity.

本発明は上記課題に鑑み、除霜を促進して、効率良く冷
却と除霜を行なう冷却ユニットを提供するものである。
In view of the above problems, the present invention provides a cooling unit that promotes defrosting and efficiently performs cooling and defrosting.

課題を解決するための手段 上記課題を解決するために、本発明の冷却ユニットは、
反射板に曲面を設けて内側に鏡面加工をほどこし、冷却
ユニット各部の霜を十分に短時間で除霜できる構成を備
えたものである。
Means for Solving the Problems In order to solve the above problems, the cooling unit of the present invention includes:
The reflector is provided with a curved surface and the inside is mirror-finished, so that frost can be defrosted from each part of the cooling unit in a sufficiently short period of time.

作  用 本発明は上記した構成によって、除霜時に冷却ユニット
部の霜を完全に除去することにより、効率良く冷却及び
除霜を行なうことができる。
Function: With the above-described configuration, the present invention can efficiently perform cooling and defrosting by completely removing frost from the cooling unit portion during defrosting.

実施例 以下本発明の一実施例の冷却ユニットについて、第1図
、第2図、第3図を参考に説明する。第1図は本発明に
おける冷却ユニットの縦断面図、第2図は本発明におけ
る冷却ユニットの反射板側から見た斜視図、第3図は本
発明における冷却ユニットの横断面図である。
EXAMPLE A cooling unit according to an example of the present invention will be described below with reference to FIGS. 1, 2, and 3. FIG. 1 is a longitudinal cross-sectional view of a cooling unit according to the present invention, FIG. 2 is a perspective view of the cooling unit according to the present invention as seen from the reflection plate side, and FIG. 3 is a cross-sectional view of the cooling unit according to the present invention.

第1図、第2図、第3図にかいて、従来例と同一構成に
ついては、同一符号を付してその詳細な説明を省略する
。13aは反射板で、曲面を形成し内面に鏡面加工がほ
どこしてあう、取付構造は従来例のダンパー3aと同様
である。16は冷却用エバポレータで配管15aとフィ
ン15bとエンドプレート1e5oより構成されている
。16は除霜用ヒータで、反射板13aに取シ付けられ
ている。冷却時に訃いては、前述のダンパーフィン3a
と同様、7アンモータ8の動作によって、ファン9が回
転し、風圧によって、反射板13aは開き、空気はエバ
ポレータ15を通過し、ファン用オリフィス1bを通っ
て庫内へ吐出される。
In FIG. 1, FIG. 2, and FIG. 3, the same components as those of the conventional example are given the same reference numerals, and detailed explanation thereof will be omitted. Reference numeral 13a denotes a reflecting plate, which has a curved surface and mirror-finished inner surfaces, and its mounting structure is the same as that of the conventional damper 3a. A cooling evaporator 16 is composed of a pipe 15a, a fin 15b, and an end plate 1e5o. Reference numeral 16 denotes a defrosting heater, which is attached to the reflecting plate 13a. If it dies during cooling, the damper fin 3a mentioned above
Similarly, the fan 9 is rotated by the operation of the motor 8, the wind pressure opens the reflection plate 13a, and the air passes through the evaporator 15 and is discharged into the refrigerator through the fan orifice 1b.

除霜時については、エバポレータ15の配管15aへの
冷媒の供給が遮断され、同時にファンモータ8の回転が
停止して、反射板13aは閉じると共に、空気はエバポ
レータ15を通過しなくなる。次に除霜用ヒータ16が
通電し、除霜が開始する。なお、反射板13aが閉じる
ことによう、除霜用ヒータ16の熱を冷却ユニット内に
こもらせ、除霜を促進するとともに、反射板13aの曲
面に施された鏡面加工により、除霜用ヒータ16の熱は
素速く効率よくエバポレータ16の各部に輻射され、短
時間で効率良い除霜が行なわれる。
During defrosting, the supply of refrigerant to the pipe 15a of the evaporator 15 is cut off, and at the same time, the rotation of the fan motor 8 is stopped, the reflection plate 13a is closed, and air no longer passes through the evaporator 15. Next, the defrosting heater 16 is energized and defrosting begins. In addition, when the reflection plate 13a closes, the heat of the defrosting heater 16 is trapped in the cooling unit to promote defrosting. The heat of the evaporator 16 is quickly and efficiently radiated to each part of the evaporator 16, and defrosting is performed efficiently in a short time.

発明の効果 以上のように本発明は、冷却ユニットの反射板に曲面を
設けて、前記反射板の内面に鏡面加工をほどこすことに
よって、除霜用ヒータの熱を素速く、エバポレータ各部
に伝える事によう、短時間で効率の良い除霜を行なえる
ものである。
Effects of the Invention As described above, the present invention provides a curved surface on the reflection plate of the cooling unit and mirror-finishes the inner surface of the reflection plate, thereby quickly transmitting the heat of the defrosting heater to each part of the evaporator. Best of all, it allows for efficient defrosting in a short period of time.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の実施例に訃ける冷却ユニットの縦断面
図、第2図は同冷却ユニ?/)の斜視図、第3図は本発
明の実施例にかける冷却ユニットの横断面図、第4図は
従来の冷却ユニットの縦断面図、第5図は従来の冷却ユ
ニットの斜視図、第6(2) 図は従来の冷却ユニットの横断面長である。 1・・・・・・ファンパネル、2・・・・・・サイドパ
ネル、3・・・・・・ドレンパン、4・・・・・・エバ
ポレータ、6・・・・・・除霜用ヒータ、16・・・・
・・反射板。
Fig. 1 is a vertical sectional view of a cooling unit according to an embodiment of the present invention, and Fig. 2 is a longitudinal cross-sectional view of the cooling unit according to an embodiment of the present invention. / ), FIG. 3 is a cross-sectional view of a cooling unit according to an embodiment of the present invention, FIG. 4 is a vertical cross-sectional view of a conventional cooling unit, and FIG. 5 is a perspective view of a conventional cooling unit. 6(2) The figure shows the cross-sectional length of a conventional cooling unit. 1... Fan panel, 2... Side panel, 3... Drain pan, 4... Evaporator, 6... Defrosting heater, 16...
··a reflector.

Claims (1)

【特許請求の範囲】[Claims] ファンパネルと、サイドパネルと、ドレンパンで箱体を
形成し、前記箱体内側にエバポレータと、除霜ヒータと
、吸込口前方上方に前記除霜ヒータを装着し、内面に鏡
面加工をほどこして曲面を有する反射板と、ファンモー
タとより成る冷却ユニット。
A box body is formed by a fan panel, a side panel, and a drain pan, and an evaporator, a defrost heater, and a defrost heater are attached to the inside of the box body, and the defrost heater is installed above the front of the suction port, and the inner surface is mirror-finished and curved. A cooling unit comprising a reflector having a reflector and a fan motor.
JP21331789A 1989-08-18 1989-08-18 Cooling unit Pending JPH0375477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21331789A JPH0375477A (en) 1989-08-18 1989-08-18 Cooling unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21331789A JPH0375477A (en) 1989-08-18 1989-08-18 Cooling unit

Publications (1)

Publication Number Publication Date
JPH0375477A true JPH0375477A (en) 1991-03-29

Family

ID=16637147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21331789A Pending JPH0375477A (en) 1989-08-18 1989-08-18 Cooling unit

Country Status (1)

Country Link
JP (1) JPH0375477A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0881131A (en) * 1994-09-09 1996-03-26 Yoshida Kogyo Kk <Ykk> Tape winder
KR100380114B1 (en) * 1992-03-12 2003-07-04 히다찌디바이스엔지니어링 가부시기가이샤 liquid crystal display device
US6721174B2 (en) 1998-06-30 2004-04-13 Lg. Philips Lcd Co., Ltd. Portable information processing apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100380114B1 (en) * 1992-03-12 2003-07-04 히다찌디바이스엔지니어링 가부시기가이샤 liquid crystal display device
JPH0881131A (en) * 1994-09-09 1996-03-26 Yoshida Kogyo Kk <Ykk> Tape winder
US6721174B2 (en) 1998-06-30 2004-04-13 Lg. Philips Lcd Co., Ltd. Portable information processing apparatus
US7307833B2 (en) 1998-06-30 2007-12-11 Lg.Philips Lcd Co., Ltd. Portable information processing apparatus

Similar Documents

Publication Publication Date Title
US3077084A (en) Heat pump having drain pan heating means
JPH0375477A (en) Cooling unit
JPH0331679A (en) Cooling device
JPH02166381A (en) Cooling unit
JPH03177774A (en) Cooling device
JPH01137181A (en) Cooling unit
JPS5920614Y2 (en) Cooling system
JPH01212883A (en) Cooling unit
JPH02254278A (en) Refrigerator
JPH02309172A (en) Cooling device
JP2005127673A (en) Cooling refrigerator
JPH07294089A (en) Frosting reducer for refrigerator
JP2001174134A (en) Refrigerator
JPH0452494A (en) Cooling unit
JPH055426Y2 (en)
JPS5839341Y2 (en) Air conditioner outdoor unit
JPS587257Y2 (en) refrigerator
JPH0629654Y2 (en) Freezer storage
JPS62245069A (en) Cooling unit
JPH0783556A (en) Frosting reducer for refrigerator
JPS6139267Y2 (en)
JP2006220394A (en) Drainage evaporation device for cooling storage
JP2005155938A (en) Refrigeration storage
JPH03291486A (en) Air cooler
JPS63161386A (en) Cooling unit