JPS5912278A - Structure of heat exchanger for refrigerator - Google Patents
Structure of heat exchanger for refrigeratorInfo
- Publication number
- JPS5912278A JPS5912278A JP12115482A JP12115482A JPS5912278A JP S5912278 A JPS5912278 A JP S5912278A JP 12115482 A JP12115482 A JP 12115482A JP 12115482 A JP12115482 A JP 12115482A JP S5912278 A JPS5912278 A JP S5912278A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- evaporator
- cold air
- frost
- suction duct
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
- F25D2317/0653—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the mullion
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は冷蔵庫において霜付に強い蒸発器を開発し省電
力化をはかった熱交換器構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat exchanger structure for a refrigerator that has developed an evaporator that is resistant to frosting and is designed to save power.
第１図および第２図に従来の冷蔵庫の一例を示す。■は
外框、２は内箱で外框■との間には断熱材３が充填され
ている。４は冷凍室扉、５は冷蔵室扉で前記の内箱２と
ともに冷凍室旦、冷蔵￥ヱを形成している。８は圧縮機
、９は凝縮器、１０はキャピラリチューブ、１１は蒸発
器でそれぞれ冷凍サイクルの一部を構成している。蒸発
器１１はフィン、ｌｌａを有する冷却管１１ｂ、除震ヒ
ータ管１１ Ｃ，脇板１１ｄ、ヘッダｌｉｅから構成さ
れている。なおフィンピッチは上段を密にし、下段にゆ
くに従って粗になるよう配列しである。An example of a conventional refrigerator is shown in FIGS. 1 and 2. ■ is an outer stile, 2 is an inner box, and a heat insulating material 3 is filled between the outer stile and the outer stile. 4 is a freezer compartment door, and 5 is a refrigerator compartment door, which together with the inner box 2 form a freezer compartment and a refrigerator compartment. 8 is a compressor, 9 is a condenser, 10 is a capillary tube, and 11 is an evaporator, each of which constitutes a part of the refrigeration cycle. The evaporator 11 is composed of a cooling pipe 11b having fins and lla, an anti-vibration heater pipe 11C, a side plate 11d, and a header lie. The fin pitch is arranged so that it is denser in the upper row and becomes coarser toward the lower row.
この蒸発器１１の下部に樋１２および樋ヒータ１３が設
置されている。１４は冷却ファン、１５はファンモータ
である。１６は冷凍室冷気吸込ダクト、■７は冷蔵室冷
気吸込ダクトで中仕切１８に設けている。１９は冷蔵室
吐出ダクト、２０は冷蔵室用温調シャッターである。２
１はドレーンパイプでその下部先端は機械室部の排水凝
縮器２２上に置かれた蒸発皿２３まで導かれている。A gutter 12 and a gutter heater 13 are installed below the evaporator 11. 14 is a cooling fan, and 15 is a fan motor. 16 is a cold air suction duct for the freezer compartment, and 7 is a cold air suction duct for the refrigerator compartment, which are provided in the partition 18. 19 is a refrigerating room discharge duct, and 20 is a refrigerating room temperature control shutter. 2
Reference numeral 1 denotes a drain pipe whose lower end is led to an evaporating tray 23 placed on a drain condenser 22 in the machine room.
圧縮機８を運転すると蒸発器１１が冷やされ、冷却ファ
ン１４によって冷気は冷凍室昼に吐出し冷凍室互を冷却
した後、冷凍室冷気吸込ダクト１６を通り再び蒸発器１
１へ戻る。冷凍室旦の温調は冷凍室内の一部に設けたＦ
センサにより圧縮機を人、切させて行っている。一方冷
蔵室りの冷却ば冷却ファン１４にて冷気は冷蔵室冷気吐
出ダクト１９を通り冷蔵室用温調シャッター２０を経て
冷蔵室ヱを冷却し、冷蔵室冷気吸込ダクトＪ７を通り蒸
発器］■に戻る。なお冷蔵室用温調シャッタの開閉によ
り冷蔵室りは一定温度に保たれる。When the compressor 8 is operated, the evaporator 11 is cooled, and the cold air is discharged into the freezer compartment by the cooling fan 14 and after cooling the freezer compartment, passes through the freezer compartment cold air suction duct 16 and returns to the evaporator 1.
Return to 1. The temperature in the freezer compartment is controlled by an F installed in a part of the freezer compartment.
A sensor automatically turns off the compressor. On the other hand, when cooling the refrigerator compartment, the cold air is passed through the refrigerator compartment cold air discharge duct 19 by the cooling fan 14, passes through the refrigerator compartment temperature control shutter 20, cools the refrigerator compartment E, and passes through the refrigerator compartment cold air suction duct J7 to the evaporator]■ Return to The temperature of the refrigerator compartment is maintained at a constant temperature by opening and closing the temperature control shutter for the refrigerator compartment.
冷蔵庫を長時間運転すると保存食品の水分および扉開閉
による外部湿気が蒸発器１１に霜となって付着し、これ
が成長すると冷気循環を阻害し、蒸発器１１の熱交換が
不能となり冷却性能を低下させる。このため一定間隔で
霜を取除く除霜運転が必要となり、除霜ヒータ管１１Ｇ
と樋ヒータ１３に通電してその発熱により霜を溶かして
いる。When the refrigerator is operated for a long period of time, moisture from stored food and external moisture from opening and closing the door will form frost on the evaporator 11, and as this grows, it will obstruct the circulation of cold air, making heat exchange in the evaporator 11 impossible and reducing the cooling performance. let For this reason, a defrost operation is required to remove frost at regular intervals, and the defrost heater pipe 11G
Then, the gutter heater 13 is energized and the frost is melted by the heat generated.
この間冷却ファン１４と圧縮機８の運転を停止する。During this time, the operation of the cooling fan 14 and compressor 8 is stopped.
本方式によると蒸発器の霜付量がある量例えば３ＱＱＣ
Ｃ以」−になると蒸発器下部中央部分すなわち冷蔵室冷
気吸込口付近に多量に付着するためこの部分が霜詰まり
となり、これより上側の霜の付いていない蒸発器も熱交
換不能となるので熱交換効率が悪く省電力上好ましくな
いという欠点があった。According to this method, there is a certain amount of frost on the evaporator, for example, 3QQC.
When the temperature reaches C or higher, a large amount of frost adheres to the lower central part of the evaporator, that is, near the cold air inlet of the refrigerator compartment, and this area becomes clogged with frost.The evaporator above this point, which is free of frost, also becomes unable to exchange heat, so the heat This has the disadvantage of poor exchange efficiency and is not desirable in terms of power saving.
本発明は上記欠陥を改良すべくなされたもので、蒸発器
の霜付分布を調査し、霜詰りに強いフィン配列にし熱交
換効率を向」ニさせ省電力形の冷蔵庫を提供することに
ある。The present invention has been made in order to improve the above-mentioned defects, and the object is to investigate the frost distribution of the evaporator, create a fin arrangement that is resistant to frost clogging, improve heat exchange efficiency, and provide a power-saving refrigerator. .
すなわち、従来の蒸発器のフィン配列である下段（冷気
人口側）粗ピツチ、上段（冷気出口側）にゆくに従って
密ピツチとしているものと、各段とも中央部は粗ピツチ
で両端にゆくに従って密ピ・・ッチになるよう組合せた
不等間隔ピ・ソチとしたもので霜詰まりに強いばかりで
なく伝熱面積も大きくなるので熱交換効率を向上させる
ことができる。In other words, the conventional evaporator fin arrangement has a coarse pitch on the lower stage (cold air intake side) and a denser pitch towards the upper stage (cold air outlet side), and a coarse pitch in the center of each stage and a denser pitch towards both ends. The unequally spaced pitches are combined to form pitches, which not only resists frost clogging but also increases the heat transfer area, improving heat exchange efficiency.
以下、本発明の一実施例を第３図により説明する。１〜
１０．１２〜２３は従来と同じ構成要素である。２４は
蒸発器であり、フィン２４ａ、冷却管２４１）、除霜ヒ
ータ管２４Ｃ１脇板２４ｄ、ヘッダ２４ｅから構成され
ている。フィン２４ａのピッチは蒸発器２４の下部中央
の冷蔵室冷気吸込ダクト１７付近を粗にし、冷媒管２４
ｂの上段または各段の両端にゆくに従って密になるよう
に配−列したものである。An embodiment of the present invention will be described below with reference to FIG. 1~
10. 12 to 23 are the same components as the conventional one. An evaporator 24 is composed of fins 24a, a cooling pipe 241), a defrosting heater pipe 24C1, a side plate 24d, and a header 24e. The pitch of the fins 24a is roughened near the cold air suction duct 17 in the refrigerator compartment at the bottom center of the evaporator 24, and
They are arranged in such a way that they become denser toward the upper row or both ends of each row.
本実施例によれば同じ大きさの蒸発器で伝熱面積が大き
くとれるので冷却性能が向上する。また比較的着霜量の
多い冷蔵室冷気吸込ダクト１７付近すなわち蒸発器中心
部分のフィンピッチを粗にしたため従来より霜詰まりの
時間を伸ばすことができるばかりでなく、冷媒管の上段
迄有効に熱交換し得るので冷却性能が向上する。蒸発器
の両端は冷凍室吸込ダク）１６からの戻り冷気であるた
め比較的着霜量が少なく、シかもフィンピッチが従来よ
り密になっているので熱交換効率が更に向上する。According to this embodiment, the heat transfer area can be increased with an evaporator of the same size, so that the cooling performance is improved. In addition, by making the fin pitch rougher near the cold air suction duct 17 in the refrigerator room, where a relatively large amount of frost forms, that is, in the center of the evaporator, it is possible not only to extend the time for frost clogging compared to conventional methods, but also to effectively heat the upper stages of the refrigerant pipes. Since they can be replaced, cooling performance is improved. Since both ends of the evaporator are returned cold air from the freezer compartment suction duct 16, the amount of frost is relatively small, and the fin pitch is closer than before, further improving heat exchange efficiency.
以上詳述したように本実施例によれば省電力の効果が得
られる。As described in detail above, according to this embodiment, the effect of power saving can be obtained.
本発明によれば霜詰まりに強く、しかも熱交換効率を向
上させることができるので省電方形冷蔵庫を提供できる
ものである。According to the present invention, it is possible to provide an energy-saving rectangular refrigerator that is resistant to frost clogging and can improve heat exchange efficiency.
第１図は従来冷蔵庫の側面断面図、第２図は従来の蒸発
器の正面図、第３図は本発明による蒸発器の正面図であ
る。
■・・・外部、２・・・内箱、３・・・断熱材、４・・
・冷凍室扉、５・・・冷蔵室扉、昼・・・冷凍室、Ｌ・
・・冷蔵室５８・・・圧縮機、９・・・凝縮器、１０・
・・キャピラリチューブ、１１・・・蒸発器、ｌｌａ・
・・フィン、１１ｂ・・・冷却管、ＩＩＣ・・・除霜ヒ
ータ管、ｌｉｄ・・・脇板、１１ｅ・・・ヘッダ、１２
・・・樋、１３・・・樋ヒータ、１４・・・冷却ファン
、１５・・・ファンモータ、１６・・・冷凍室冷気吸込
ダクト、１７・・・冷蔵室冷気吸込ダクト、１８・・・
中仕切、１９・・・冷蔵室冷気吐出ダクト、２０・・・
冷蔵室用温調シャッター、２１・・・ドレーンバイブ、
２２・・・排水凝縮器、２３・・・蒸発皿、２４・・・
蒸発器、２４ａ・・・フィン、２４ｂ・・・冷却管、２
４Ｃ・・・除霜ヒータ、２４ｄ・・・脇板、２４ｅ・・
・へ・ソダ。FIG. 1 is a side sectional view of a conventional refrigerator, FIG. 2 is a front view of a conventional evaporator, and FIG. 3 is a front view of an evaporator according to the present invention. ■...External, 2...Inner box, 3...Insulating material, 4...
・Freezer compartment door, 5... Refrigerator compartment door, daytime... Freezer compartment, L.
... Refrigerator room 58 ... Compressor, 9 ... Condenser, 10.
... Capillary tube, 11... Evaporator, lla.
...Fin, 11b...Cooling pipe, IIC...Defrosting heater pipe, lid...Side plate, 11e...Header, 12
... Gutter, 13... Gutter heater, 14... Cooling fan, 15... Fan motor, 16... Freezer room cold air suction duct, 17... Refrigerator room cold air suction duct, 18...
Inner partition, 19... Refrigerator room cold air discharge duct, 20...
Temperature control shutter for refrigerator room, 21...Drain vibe,
22... Drainage condenser, 23... Evaporation dish, 24...
Evaporator, 24a...Fin, 24b...Cooling pipe, 2
4C... Defrost heater, 24d... Side plate, 24e...
・Soda.
Claims (1)
ン（２４ａ）配列を５冷却管（２４ｂ）の下段中央（冷
蔵室冷気吸込ダクト１７側）を基点として、冷却管（２
４ｂ）の」二段にゆくに従って順次密ピツチに、また冷
却管（２４ｂ）の各段とも両端（冷凍室冷気吸込ダクト
１６側）にゆくに従って順次密ピツチに設置したことを
特徴とする冷蔵庫の熱交換器構造。1. The arrangement of the fins (24a) of the evaporator (24) in a forced draft refrigerator is set at the center of the lower stage of the cooling pipe (24b) (on the cold air suction duct 17 side of the refrigerator compartment).
4b) The refrigerator is characterized in that the cooling pipes (24b) are arranged in a densely spaced manner as one goes to the second stage, and each stage of the cooling pipe (24b) is installed in a densely spaced manner as one goes to both ends (the cold air suction duct 16 side of the freezer compartment). Heat exchanger structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12115482A JPS5912278A (en) | 1982-07-14 | 1982-07-14 | Structure of heat exchanger for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12115482A JPS5912278A (en) | 1982-07-14 | 1982-07-14 | Structure of heat exchanger for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5912278A true JPS5912278A (en) | 1984-01-21 |
Family
ID=14804182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12115482A Pending JPS5912278A (en) | 1982-07-14 | 1982-07-14 | Structure of heat exchanger for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5912278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019132497A (en) * | 2018-01-31 | 2019-08-08 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
-
1982
- 1982-07-14 JP JP12115482A patent/JPS5912278A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019132497A (en) * | 2018-01-31 | 2019-08-08 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
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