JPS60207885A - Freezing refrigerator - Google Patents
Freezing refrigeratorInfo
- Publication number
- JPS60207885A JPS60207885A JP6368984A JP6368984A JPS60207885A JP S60207885 A JPS60207885 A JP S60207885A JP 6368984 A JP6368984 A JP 6368984A JP 6368984 A JP6368984 A JP 6368984A JP S60207885 A JPS60207885 A JP S60207885A
- Authority
- JP
- Japan
- Prior art keywords
- cooler
- drive spring
- freezer
- refrigerator
- damper
- 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.)
- Granted
Links
Landscapes
- Defrosting Systems (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
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】
〔発明の技術分野〕
本発明は、冷凍冷蔵庫に係わり、特に構成が簡単である
にも拘らず、除霜時に冷凍室内が温度上昇するのを確実
に防止できるようにした冷凍冷蔵庫に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a refrigerator-freezer, and in particular, to a refrigerator that is capable of reliably preventing the temperature inside the freezer from rising during defrosting, despite its simple configuration. Regarding refrigerator-freezers.
（発明の技術的背景とその問題点）
冷凍室および冷蔵室を備えた冷凍冷蔵庫において、冷凍
室内を冷却する方式としては、従来、冷凍室内に直接冷
却器を配設する直冷方式と、冷凍室とは別に内部に冷却
器を収容した冷却室を設け、冷凍室内の空気を対流ファ
ンで上記冷却室を経由させて循環させる冷気対流方式を
採用した、いわゆる間冷方式とがある。間冷方式は、冷
気対流方式を採用しているので冷凍室内を短時間に均一
に冷却できる利点を備えている。(Technical background of the invention and its problems) Conventionally, in a refrigerator-freezer equipped with a freezer compartment and a refrigerator compartment, there are two methods for cooling the interior of the freezer compartment: a direct cooling method in which a cooler is placed directly in the freezer compartment; There is a so-called intercooling method, which employs a cold air convection method in which a cooling chamber containing a cooler is provided inside the freezing chamber and the air inside the freezing chamber is circulated through the cooling chamber using a convection fan. Since the intercooling method uses a cold air convection method, it has the advantage of uniformly cooling the inside of the freezer compartment in a short period of time.
ところで、上述した間冷式冷凍冷蔵庫にあっても、冷却
室内部に設置された冷却器表面の霜を随時除去しなけれ
ばならないことに変わりはない。By the way, even in the above-mentioned intercooling type refrigerator-freezer, it is still necessary to remove frost from the surface of the cooler installed inside the cooling chamber as needed.
一般に、このような冷却器表面からの除霜は、冷却器を
除霜用電気ヒータで加熱することによって行われている
が、従来の間冷式の冷凍冷蔵庫にあっては、除霜時に冷
凍室と冷却室との間に対流が生じ、この結果、冷凍室内
の温度が上昇し、このため、冷凍室内に食品等を収容し
ておくことができないという問題があった。Generally, such defrosting from the surface of the cooler is carried out by heating the cooler with an electric defrosting heater, but in conventional inter-cooling type refrigerator-freezers, the surface of the cooler is cooled during defrosting. Convection occurs between the chamber and the cooling chamber, and as a result, the temperature inside the freezing chamber rises, resulting in a problem that food and the like cannot be stored in the freezing chamber.
そこで、このような不具合を解消するために、最近、冷
凍室と冷却室とを連絡する連絡路に、この連絡路を開閉
する回動自在なダンパ板を設け、除霜時に上記ダンパ板
を閉に制御することによって冷凍室と冷却室との間の対
流を防止し、これによって除霜時に冷凍室内の温度上昇
を抑えることができるようにした冷凍冷蔵庫が提案され
ている。Therefore, in order to eliminate such problems, recently a rotatable damper plate was installed in the communication path connecting the freezing room and the cooling room to open and close this communication path, and the damper plate was closed during defrosting. A refrigerator-freezer has been proposed that prevents convection between the freezing compartment and the cooling compartment by controlling the temperature of the frozen compartment, thereby suppressing the temperature rise in the freezing compartment during defrosting.
そして、上記のようにダンパ板を設けたものにあっては
、ダンパ板を駆動する手段として、形状記憶合金を利用
した駆動機構を用いるようにしている。In the case where a damper plate is provided as described above, a drive mechanism using a shape memory alloy is used as a means for driving the damper plate.
しかしながら、上記のようにダンパ板を備え、かつ形状
記憶合金材を利用した駆動機構を備えた冷凍冷蔵庫にあ
っては次のような問題があった。However, the refrigerator-freezer equipped with a damper plate and a drive mechanism using a shape memory alloy material as described above has the following problems.
すなわち、形状記憶合金材を短時間に変態点温度以上に
加熱するには大容量のダンパ制御用電気ヒータを必要と
する。このように大容量の電気ヒータを用いると、ダン
パ板を短時間に閉制御できる反面、除霜期間中ダンパ板
が必要以上に加熱され、この結果、上記加熱の影響で冷
凍室内が昇温する問題があった。そこで、低容量のダン
パ制御用電気ヒータを用いることが考えられるが、この
ようにすると、ダンパ板が閉じるまでに長時間を要し、
この間に除霜用電気ヒータによって加熱された空気が冷
凍室内に流入してしまうという問題があった。That is, in order to heat the shape memory alloy material to the transformation point temperature or higher in a short period of time, a large capacity electric heater for controlling the damper is required. Using a large-capacity electric heater like this allows the damper plate to be closed in a short time, but on the other hand, the damper plate is heated more than necessary during the defrosting period, and as a result, the temperature inside the freezer compartment increases due to the above heating effect. There was a problem. Therefore, it is possible to use a low-capacity electric heater for damper control, but this would take a long time to close the damper plate.
During this time, there was a problem in that air heated by the defrosting electric heater flows into the freezing chamber.
本発明は、このような事情に鑑みてなされたもので、そ
の目的とするところは、形状記憶合金材を利用した駆動
機構を用い、低電気容量でダンパ板を確実に、かつ短時
間に動作させることができ、もって、除霜時に冷凍室内
が温度上昇するのを確実に防止できる冷凍冷蔵庫を提供
することにある。The present invention was made in view of the above circumstances, and its purpose is to operate the damper plate reliably and in a short time with low electric capacity using a drive mechanism using a shape memory alloy material. To provide a refrigerator-freezer which can reliably prevent a temperature rise in a freezer compartment during defrosting.
（発明の概要）
本発明は、冷凍室内の空気を冷却器の収容された冷却室
内を経由させて強制循環させるとともに上記冷却器に付
着した霜を除去する除霜時に上記強制循環および上記冷
却器への冷媒供給を停止させ、上記冷却器を除霜用電気
ヒータで加熱するようにした冷凍冷蔵庫において、前記
冷凍室と前記冷却室とを連゛通させる連絡路に設けられ
上記連絡路を開閉する回動自在なダンパ板と、このダン
パ板に開方向の偏倚力を常に付与するためのバイアスバ
ネと、変態点温度以上に加熱された場合に上記バイアス
バネに抗して前記ダンパ板を閉方向に駆動する形状記憶
合金材製の駆動バネと、この駆動バネを選択的に加熱す
るダンパ制御用電気ヒータと、このダンパ制御用電気ヒ
ータと前記駆動バネとを収容するとともに内部に空気を
対流させるだめの通風孔を有する駆動バネ収容容器とを
具備してなることを特徴としている。(Summary of the Invention) The present invention provides for forced circulation of air in a freezing chamber through a cooling chamber in which a cooler is housed, and removal of frost attached to the cooler during defrosting. In the refrigerator-freezer, in which the refrigerant supply to the refrigerator is stopped and the cooler is heated by an electric heater for defrosting, a connecting passage connecting the freezing compartment and the cooling compartment is provided, and the connecting passage is opened and closed. a rotatable damper plate, a bias spring for always applying a biasing force in the opening direction to the damper plate, and a bias spring for closing the damper plate against the bias spring when heated to a transformation point temperature or higher. A drive spring made of a shape memory alloy material that is driven in a direction, an electric heater for controlling a damper that selectively heats the drive spring, and an electric heater for controlling the damper and the drive spring are accommodated, and air is convected inside. It is characterized by comprising a driving spring housing container having a ventilation hole for causing the driving spring to move.
上記構成であると、駆動バネ収容容器内部にダンパ制御
用電気ヒータと形状記憶合金材性の駆動バネとを収容す
るようにしているので、加熱効率および保温性が良く、
駆動バネを効果的かつ速やかに加熱できる。このため、
ダンパ板を速やかに閉の状態に切替えることができるう
え、ダンパ制御用電気ヒータの電気容量の低減化をも図
ることができる。また、ダンパ制卸用電気ヒータが駆動
バネ収容容器内に収容されているので、除霜時に付勢さ
れた上記電気ヒータからのＮ射熱はこの容器で遮蔽され
、ダンパ板が必要以上に加熱されることがない。With the above configuration, the electric heater for damper control and the drive spring made of shape memory alloy material are housed inside the drive spring housing container, so heating efficiency and heat retention are good.
Drive springs can be heated effectively and quickly. For this reason,
In addition to being able to quickly switch the damper plate to the closed state, it is also possible to reduce the electrical capacity of the damper control electric heater. In addition, since the damper control electric heater is housed in the drive spring storage container, the N radiation heat from the electric heater energized during defrosting is blocked by this container, causing the damper plate to heat up more than necessary. never be done.
また、駆動バネ収容容器には、通風孔が設けられている
ので、除霜後に冷凍サイクル運転を開始すると、駆動バ
ネ収容容器内部の暖気は、自然対流によって速やかに除
去され、即座に駆動バネが冷却さ土ることになる。この
ため、ダンパ板の閉動作の応答性を損うようなこともな
い。In addition, the drive spring storage container is provided with ventilation holes, so when the refrigeration cycle operation is started after defrosting, the warm air inside the drive spring storage container is quickly removed by natural convection, and the drive spring is immediately removed. The soil will be cooled. Therefore, the responsiveness of the closing operation of the damper plate is not impaired.
したがって、本発明によれば、上述した効果があいまっ
て除霜時に冷凍室が昇温するのを確実に防止することが
できる。Therefore, according to the present invention, the above-mentioned effects are combined to reliably prevent the temperature of the freezer compartment from rising during defrosting.
以下、図面を参照し、本発明の一実施例について説明す
る。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は、冷凍室と冷蔵室とを別々の冷却器で冷却する
ようにした冷凍冷蔵庫に本発明を適用した例を示す図で
ある。FIG. 1 is a diagram showing an example in which the present invention is applied to a refrigerator-freezer in which a freezer compartment and a refrigerator compartment are cooled by separate coolers.
第１図において、１は冷凍冷蔵庫筺体であり、この筺体
１は、断熱材２を内包した部材で縦長に形成されている
。筐体１の内部は仕切壁３によって上下に仕切られてお
り、上記仕切壁３の存在によって上方に冷凍室４が、ま
た、下方に冷蔵室５がそれぞれ形成されている。そして
、上記冷凍室４および冷蔵室５の同一側に位置する側壁
は、それぞれ開閉自在な１１６．７に形成されている。In FIG. 1, reference numeral 1 denotes a refrigerator/freezer housing, and the housing 1 is made of a member containing a heat insulating material 2 and is formed in a vertically elongated manner. The interior of the casing 1 is divided into upper and lower parts by a partition wall 3, and the presence of the partition wall 3 forms a freezer compartment 4 in the upper part and a refrigerating compartment 5 in the lower part. The side walls of the freezer compartment 4 and the refrigerator compartment 5 located on the same side are each formed into a shape 116.7 that can be opened and closed.
冷凍室４の奥壁８内には冷却室９が形成されており、こ
の冷却室９の上端は奥壁８内に形成された通路１０を介
して奥壁８の内面上方位置に開口した吐出口１１に通じ
、また、冷却室９の下端は、仕切壁３内に形成された通
路１２を介して仕切壁３の上面に開口した吸込口１３に
通じている。そして、冷却室９内には冷却器１４が設置
されている。この冷却器１４には除霜時のみ付勢される
シーズヒータ１５が添設されている。また、吐出口１１
の内側には対流用のファン１６が、さらに通路１０内に
はダンパ機構■がそれぞれ設置されている。なお、冷蔵
室５内には、冷蔵室５内を冷却する図示しない冷却器が
設置されている。A cooling chamber 9 is formed in the back wall 8 of the freezer compartment 4, and the upper end of this cooling chamber 9 is connected to a discharge outlet that opens at a position above the inner surface of the back wall 8 through a passage 10 formed in the back wall 8. The lower end of the cooling chamber 9 communicates with the outlet 11 , and the lower end of the cooling chamber 9 communicates with a suction port 13 opened on the upper surface of the partition wall 3 via a passage 12 formed in the partition wall 3 . A cooler 14 is installed within the cooling chamber 9. A sheathed heater 15 is attached to the cooler 14 and is energized only during defrosting. In addition, the discharge port 11
A convection fan 16 is installed inside the passage 10, and a damper mechanism (2) is installed inside the passage 10. Note that a cooler (not shown) is installed in the refrigerator compartment 5 to cool the inside of the refrigerator compartment 5.
しかして、前記ダンパ１ｉｌｌ１１７は、具体的には次
のように構成されている。Specifically, the damper 1ill117 is configured as follows.
すなわち、図中２２は軸２１に回動自在に支持されて通
路１０を開閉するダンパ板である。冷却室９の内面で上
記ダンパ板２２と対向する位置には、支持板２３および
支持板２４がそれぞれ固定されている。That is, 22 in the figure is a damper plate rotatably supported by the shaft 21 to open and close the passage 10. A support plate 23 and a support plate 24 are respectively fixed at positions facing the damper plate 22 on the inner surface of the cooling chamber 9.
支持板２３の下端位置には、上記ダンパ板２２が閉状態
の時に上記ダンパ板２２の上面と係止し得る係止壁２５
が設けられている。そして、支持板２３の中央部とダン
パ板２２の上面との間には、ダンパ板２２に常に開方向
の偏倚力を付与するためのバイアスバネ２Ｇが張設され
ている。一方、支持板２４の上端位置には、上記ダンパ
板２２が閉状態の時に上記ダンパ板２２の下面と係止し
得る係止壁２７が設けられている。支持板２４の内面で
ダンパ板２２より下方位置には、ダンパ駆動礪構胆が設
けられている。このダンパ駆動ｌＩｔ！Ｉ２Ｂは、比較
的熱伝導性の良好な部材で形成され上下面に通風孔３１
および３２をそれぞれ設けた容器３３と、コイル部分が
この容器３３内に収容された状態でダンパ板２２の下面
と容器３３の下端部との間に張設され上記ダンパ板２２
に開方向の偏倚力を選択的に付与する駆動バネ３４と、
容器３３内に収容され上記駆動バネ３４を選択的に加熱
するダンパ制御用の電気ヒータ３５と、容器３３の外面
と冷却器１４のたとえば冷却フィンとの間を熱的に接続
する良熱伝導材製の熱伝導板３６とで構成されている。At the lower end position of the support plate 23 is a locking wall 25 that can lock with the upper surface of the damper plate 22 when the damper plate 22 is in the closed state.
is provided. A bias spring 2G is stretched between the center portion of the support plate 23 and the upper surface of the damper plate 22 to always apply a biasing force in the opening direction to the damper plate 22. On the other hand, a locking wall 27 is provided at the upper end of the support plate 24, which can lock with the lower surface of the damper plate 22 when the damper plate 22 is in the closed state. A damper drive mechanism is provided on the inner surface of the support plate 24 at a position below the damper plate 22. This damper drive lIt! I2B is made of a material with relatively good thermal conductivity, and has ventilation holes 31 on the upper and lower surfaces.
and 32, and the damper plate 22 is stretched between the lower surface of the damper plate 22 and the lower end of the container 33 with the coil portion housed in the container 33.
a drive spring 34 that selectively applies a biasing force in the opening direction;
An electric heater 35 for damper control, which is housed in the container 33 and selectively heats the drive spring 34, and a good heat conductive material that thermally connects the outer surface of the container 33 and, for example, the cooling fins of the cooler 14. It is composed of a heat conductive plate 36 made of
駆動バネ３４は、形状記憶合金材で形成されたもので、
変態点温度以下では伸長し、変態点温度以上では収縮す
るものである。なお、シーズヒータ１５および電気ヒー
タ３５は、それぞれ図示しない除霜制御回路に接続され
ている。The drive spring 34 is made of a shape memory alloy material,
It expands at temperatures below the transformation point and contracts at temperatures above the transformation point. Note that the sheathed heater 15 and the electric heater 35 are each connected to a defrosting control circuit (not shown).
このように構成された本実施例の冷凍冷蔵庫は、次のよ
うに動作する。The refrigerator-freezer of this embodiment configured as described above operates as follows.
すなわち、まず通常の冷却時においては、ダンパ駆動装
置岨の駆動バネ３４は変態点温度以下であるので、第２
図（ａ）に示すように伸長状態となっている。このため
、ダンパ板２２はバイアスバネ２６のバネ力によって開
側に設定されている。いま、冷凍室４内の温度が冷凍室
４内に設置された図示しないサーモスタットの設定温度
以下の時には、ファン１６が駆動される。これによって
、冷凍室４内の空気は、冷凍室４内〜吸込ロ１３〜通路
１２〜冷却器１４〜ダンパ薇構Ｕ〜通路１０〜吐出口１
１〜冷凍至４内の経路で循環する。このとき、循環空気
は冷却器１４と接触して冷却されるので、結局、冷凍室
４内も冷却されることになる。That is, first, during normal cooling, the drive spring 34 of the damper drive device is below the transformation point temperature, so the second
As shown in Figure (a), it is in an extended state. Therefore, the damper plate 22 is set to the open side by the spring force of the bias spring 26. Now, when the temperature inside the freezing compartment 4 is lower than the set temperature of a not-shown thermostat installed in the freezing compartment 4, the fan 16 is driven. As a result, the air in the freezer compartment 4 is transferred from the freezer compartment 4 to the suction 13 to the passage 12 to the cooler 14 to the damper structure U to the passage 10 to the discharge port 1.
It circulates through the route from 1 to freezing to 4. At this time, the circulating air comes into contact with the cooler 14 and is cooled, so that the inside of the freezer compartment 4 is also cooled after all.
一方、除霜時においては、前記除霜制御回路は、ファン
１６を停止するとともにシーズヒータ１５と、ダンパ制
御用の電気ヒータ３５とに通電し、これらヒータを付勢
する。これによって、容器３３内の濃度が上昇する。駆
動バネ３４は、容器３３内の加熱された空気により加熱
される他、電気ヒータ３５の輻射熱によっても加熱され
る。このため、駆動バネ３４は、直ちに変態点温度以上
になり第２図（ｂ）に示すように収縮する。駆動バネ３
５が収縮すると、駆動バネ３５はバイアスバネ２６のバ
ネ力に抗してダンパ板２２を閉方向に回動するので、通
路９はダンパ板２２によって遮断される。この結果、冷
却器１４の加熱用シーズヒータ１５からの暖気の冷凍室
４内部への流入が阻止される。On the other hand, during defrosting, the defrosting control circuit stops the fan 16 and energizes the sheathed heater 15 and the electric heater 35 for damper control by energizing these heaters. This increases the concentration within the container 33. The drive spring 34 is heated not only by the heated air inside the container 33 but also by radiant heat from the electric heater 35 . Therefore, the drive spring 34 immediately reaches a temperature higher than its transformation point and contracts as shown in FIG. 2(b). Drive spring 3
5 contracts, the drive spring 35 rotates the damper plate 22 in the closing direction against the spring force of the bias spring 26, so the passage 9 is blocked by the damper plate 22. As a result, warm air from the sheathed heater 15 of the cooler 14 is prevented from flowing into the freezer compartment 4 .
除霜が終了し、冷却器１４が再運転されると、冷却器１
４の周囲の空気の温度と、容器３３内の空気の温度とに
差を生じる。容器３３は上下に通風孔３１゜３２を有し
ているので、この通風孔３１．３２を介して自然対流が
起り、容器３３内部に冷気が導入される。When defrosting is finished and the cooler 14 is restarted, the cooler 1
A difference is created between the temperature of the air around the container 33 and the temperature of the air inside the container 33. Since the container 33 has ventilation holes 31 and 32 on the upper and lower sides, natural convection occurs through the ventilation holes 31 and 32, and cold air is introduced into the interior of the container 33.
一方、容器３３は、熱伝導板３６を介して冷却器１４と
熱的に接続されているので、容器３３自体も熱伝導によ
って冷却される。このため、駆動バネ３４は直ちに冷却
され再び第２図（ａ）に示すように伸長する。この結果
、ダンパ板２２は開側に回動され、空気の循環路が形成
される。この状態で、ファン１６が駆動されると、冷凍
室４内部が冷却される。On the other hand, since the container 33 is thermally connected to the cooler 14 via the heat conduction plate 36, the container 33 itself is also cooled by heat conduction. Therefore, the drive spring 34 is immediately cooled and expands again as shown in FIG. 2(a). As a result, the damper plate 22 is rotated to the open side, and an air circulation path is formed. In this state, when the fan 16 is driven, the inside of the freezer compartment 4 is cooled.
このように、本実施例によれば、駆動バネ３４とこの駆
動バネ３４を加熱する電気ヒータ３５とを容器３３内に
収容するようにしているので、駆動バネ３４の加熱効率
を向上させることができる。また、容器３３の上下端に
、通風孔３１．３２を設けるとともに容器３３と冷却器
１４とを熱伝導板３２で熱的に接続するようにしている
ので、冷却時の駆動バネ３４の冷却時間の短縮化を図る
ことができる。このため、前述した効果を十分に達成さ
せることができる。As described above, according to this embodiment, the drive spring 34 and the electric heater 35 for heating the drive spring 34 are housed in the container 33, so that the heating efficiency of the drive spring 34 can be improved. can. In addition, ventilation holes 31 and 32 are provided at the upper and lower ends of the container 33, and the container 33 and the cooler 14 are thermally connected by the heat conduction plate 32, so that the cooling time of the drive spring 34 during cooling is reduced. The time can be shortened. Therefore, the effects described above can be fully achieved.
なお、本発明は、一つの冷却器で冷凍室と冷却室とを共
通に冷却するようにしたものや、冷却室内に急速冷却用
の冷却器を備えたものにも適用できることは勿論である
。It goes without saying that the present invention can also be applied to a cooler in which a single cooler cools both a freezing chamber and a cooling chamber, or a cooler in which a rapid cooling cooler is provided in the cooling chamber.
第１図は本発明の一実施例に係る冷凍冷ｊＩｌｉ庫の一
部を示す縦断面図、第２図（ａ）、（ｂ）は同冷凍冷蔵
庫の作用を説明するための図である。
１・・・筐体、２・・・断熱材、３・・・仕切壁、４・
・・冷凍室、５・・・冷蔵至、６．７・・・扉、８・・
・奥壁、９・・・冷却室、１０．１２・・・通路、１１
・・・吐出口、１３・・・吸込口、１４・・・冷却器、
１５・・・シーズヒータ、１６・・・ファン、旦・・・
ダンパ線溝、２１・・・軸、２２・・・ダンパ板、２３
．２４・・・支持板、２６・・・バイアスバネ、往・・
・ダンパ駆動機構、３１、３２・・・通風孔、３３・・
・容器、３４・・・駆動バネ、３５・・・電気ヒータ、
３Ｇ・・・熱伝導板。
出願人代理人 弁理士 鈴江武彦
第１図
（０，）
１６
２図
（ｂ）
６FIG. 1 is a vertical sectional view showing a part of a refrigerator-freezer according to an embodiment of the present invention, and FIGS. 2(a) and 2(b) are diagrams for explaining the operation of the refrigerator-freezer. 1... Housing, 2... Insulating material, 3... Partition wall, 4...
... Freezer compartment, 5... Refrigeration to, 6.7... Door, 8...
・Back wall, 9...Cooling room, 10.12...Aisle, 11
...Discharge port, 13...Suction port, 14...Cooler,
15... Sheathed heater, 16... Fan, Dan...
Damper wire groove, 21... shaft, 22... damper plate, 23
．． 24...Support plate, 26...Bias spring, forward...
・Damper drive mechanism, 31, 32...Ventilation hole, 33...
- Container, 34... Drive spring, 35... Electric heater,
3G...Heat conduction plate. Applicant's agent Patent attorney Takehiko Suzue Figure 1 (0,) 16 Figure 2 (b) 6
Claims (1)
内を経由させて強制循環させるとともに上記冷却器に付
着した霜を除去する除霜時に上記強制循環および上記冷
却器への冷媒供給を停止させ、上記冷却器を除霜用電気
ヒータで加熱するようにした冷凍冷蔵庫において、前記
冷凍室と前記冷却室とを連通さゼる連絡路に設けられ上
記連絡路を開閉する回動自在なダンパ板と、このダンパ
板に開方向の偏奇力を常に付与するためのバイアスバネ
と、変態点温度以上に加熱された場合に上記バイアスバ
ネに抗して前記ダンパ板を閉方向に駆動する形状記憶合
金材製の駆動バネと、この駆動バネを選択的に加熱する
ダンパ制御用電気ヒータと、このダンパ制御用電気ヒー
タと前記駆動バネとを収容するとともに内部に空気を対
流させるための通風孔を有する駆動バネ収容容器とを具
備してなることを特徴とする冷凍冷蔵庫。 ■ 前記駆動バネ収容容器は、良熱伝導性部材で形成さ
れかつ前記冷却器に熱的に結合されたものであることを
特徴とする特許請求の範囲第１項記載の冷凍冷蔵庫。(1) The air inside the freezer compartment is forced to circulate through the cooling chamber in which the cooler is housed, and the forced circulation and refrigerant supply to the cooler are carried out during defrosting to remove frost attached to the cooler. In the refrigerator-freezer in which the cooler is heated by an electric heater for defrosting, the refrigerator-freezer is provided with a connecting path that communicates the freezing chamber and the cooling chamber, and is rotatable to open and close the connecting path. a damper plate, a bias spring for always applying an eccentric force in the opening direction to the damper plate, and a shape that drives the damper plate in the closing direction against the bias spring when heated above a transformation point temperature. A drive spring made of a memory alloy material, an electric heater for controlling a damper that selectively heats the drive spring, and a ventilation hole for accommodating the electric heater for controlling the damper and the drive spring and for causing air convection therein. A refrigerator-freezer comprising: a drive spring storage container having a drive spring storage container; (2) The refrigerator-freezer according to claim 1, wherein the drive spring housing container is made of a material with good thermal conductivity and is thermally coupled to the cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6368984A JPS60207885A (en) | 1984-03-31 | 1984-03-31 | Freezing refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6368984A JPS60207885A (en) | 1984-03-31 | 1984-03-31 | Freezing refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60207885A true JPS60207885A (en) | 1985-10-19 |
| JPH0535345B2 JPH0535345B2 (en) | 1993-05-26 |
Family
ID=13236592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6368984A Granted JPS60207885A (en) | 1984-03-31 | 1984-03-31 | Freezing refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60207885A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113258A (en) * | 1989-09-27 | 1991-05-14 | Matsushita Refrig Co Ltd | Damper opening/closing device |
| JP2002031466A (en) * | 2000-07-19 | 2002-01-31 | Mitsubishi Electric Corp | Refrigerator |
| KR20210002892A (en) * | 2019-07-01 | 2021-01-11 | 주식회사 한양비이에스티교육 | Kit For Educating The Principle Of Shape Memory Alloy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59132080U (en) * | 1983-02-23 | 1984-09-04 | 株式会社日立製作所 | Defrost device for refrigerator |
-
1984
- 1984-03-31 JP JP6368984A patent/JPS60207885A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59132080U (en) * | 1983-02-23 | 1984-09-04 | 株式会社日立製作所 | Defrost device for refrigerator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113258A (en) * | 1989-09-27 | 1991-05-14 | Matsushita Refrig Co Ltd | Damper opening/closing device |
| JPH079337B2 (en) * | 1989-09-27 | 1995-02-01 | 松下冷機株式会社 | Damper opening and closing device |
| JP2002031466A (en) * | 2000-07-19 | 2002-01-31 | Mitsubishi Electric Corp | Refrigerator |
| KR20210002892A (en) * | 2019-07-01 | 2021-01-11 | 주식회사 한양비이에스티교육 | Kit For Educating The Principle Of Shape Memory Alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0535345B2 (en) | 1993-05-26 |
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