JPH07190602A - Pressure balancer for refrigerator - Google Patents
Pressure balancer for refrigeratorInfo
- Publication number
- JPH07190602A JPH07190602A JP6285118A JP28511894A JPH07190602A JP H07190602 A JPH07190602 A JP H07190602A JP 6285118 A JP6285118 A JP 6285118A JP 28511894 A JP28511894 A JP 28511894A JP H07190602 A JPH07190602 A JP H07190602A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- pressure
- outside air
- outside
- pipe
- 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
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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/047—Pressure equalising devices
-
- 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
- F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
- F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
- F25D2321/144—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans
- F25D2321/1442—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans outside a refrigerator
-
- 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
- F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
- F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
- F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Removal Of Water From Condensation And Defrosting (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷蔵庫の圧力平衡装置
に関し、特に、冷蔵庫の庫内の圧力が庫外の圧力より低
い時、除霜水を排水する排水管に形成されたリザーバ管
を通じて庫外空気が庫内に流入するように成して、冷蔵
庫内と庫外の圧力を平衡に維持せしめることにより、冷
蔵庫のドアを容易に開けられるように成す冷蔵庫の圧力
平衡装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure balance device for a refrigerator, and more particularly, through a reservoir pipe formed in a drain pipe for draining defrost water when the pressure inside the refrigerator is lower than the pressure outside the refrigerator. The present invention relates to a pressure balance device for a refrigerator in which the outside air is allowed to flow into the inside of the refrigerator and the pressure inside and outside the refrigerator is kept in equilibrium so that the door of the refrigerator can be easily opened.
【０００２】[0002]
【従来の技術】従来の冷蔵庫は、図４に図示したよう
に、冷蔵庫本体を形成するキャビネット１と、キャビネ
ットの一側に回動可能にヒンジ結合された冷蔵庫ドア２
とを含み、冷蔵庫ドア２にはキャビネットとの密着のた
めに、マグネット（図示せず）を有するガスケット３が
取り付けられている。2. Description of the Related Art As shown in FIG. 4, a conventional refrigerator includes a cabinet 1 forming a refrigerator body and a refrigerator door 2 rotatably hinged to one side of the cabinet.
In addition, a gasket 3 having a magnet (not shown) is attached to the refrigerator door 2 for close contact with the cabinet.
【０００３】このような冷蔵庫のドアを閉めた直後、蒸
発器（図示せず）に隣接して設置された冷却ファンが作
動して、庫内の空気を蒸発器側に流入させ、そこで熱交
換を成す。熱交換された空気は低温となるので、空気の
圧力が比較的低くなり、冷蔵庫の内部が仮真空（pseudo
vacuum ）状態になる。これに従って、冷蔵庫内部と外
部の圧力の差が生ずるようになるので、ドアを開けるた
めには、この圧力差に相当するだけ更に多くの力を必要
とするという問題点があった。Immediately after closing the door of such a refrigerator, a cooling fan installed adjacent to an evaporator (not shown) is operated to allow the air in the refrigerator to flow into the evaporator side, where heat exchange is performed. To make. Since the heat-exchanged air has a low temperature, the pressure of the air becomes relatively low, and the inside of the refrigerator is temporarily vacuumed.
vacuum) state. As a result, a pressure difference between the inside and the outside of the refrigerator is generated, and thus there is a problem in that in order to open the door, more force corresponding to this pressure difference is required.
【０００４】また、従来の冷蔵庫には、蒸発器に付着し
た霜が溶けた水（除霜水）を外部に排水させるため、一
端が冷蔵庫の内部と連通し、他端が冷蔵庫の外部と連通
する排水管４が設置されている。即ち、排水管４の一端
は蒸発器（図示せず）の周囲まで延設され、他端は冷蔵
庫の機械室５に設置される蒸発皿６まで延設しており、
これによって除霜水が、排水管４を通じて蒸発皿６に集
められ、そこで、蒸発されるようにしている。更に、排
水管４の中間には、Ｕ型管７を設置して、常に一定量の
除霜水が貯水されるように成すことにより、冷蔵庫外部
の高温空気が冷蔵庫の内部に流入しないように成すと同
時に、冷蔵庫内部の冷気が冷蔵庫の外部に流出しないよ
うにしている。このような形態のＵ型管を採用している
従来例が、実開昭６２−６０８８３号公報及び特開昭６
２−５９３６９号公報に示されている。Further, in the conventional refrigerator, one end communicates with the inside of the refrigerator and the other end communicates with the outside of the refrigerator in order to drain the water (defrost water) in which the frost adhering to the evaporator is melted to the outside. A drainage pipe 4 is installed. That is, one end of the drain pipe 4 is extended to the periphery of an evaporator (not shown), and the other end is extended to an evaporation tray 6 installed in a machine room 5 of the refrigerator,
As a result, the defrost water is collected in the evaporation tray 6 through the drain pipe 4 and evaporated there. Further, a U-shaped pipe 7 is installed in the middle of the drainage pipe 4 so that a constant amount of defrosted water is stored, so that hot air outside the refrigerator does not flow into the refrigerator. At the same time, the cold air inside the refrigerator is prevented from flowing out of the refrigerator. The conventional example using the U-shaped tube having such a configuration is disclosed in Japanese Utility Model Laid-Open No. 62-60883 and Japanese Patent Laid-Open No.
No. 2-59369.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うに構成された従来の冷蔵庫では、Ｕ型管７に貯水され
る一定量の除霜水によって、冷蔵庫内部と外部の空気の
流動が遮断されるので、冷蔵庫を開閉する時発生する冷
蔵庫内部と外部の圧力の差が解消されない。従って、ド
アを開けるためには、この圧力差に相当するだけの力を
加えなければならないという問題点があった。However, in the conventional refrigerator configured as described above, a certain amount of defrost water stored in the U-shaped pipe 7 blocks the flow of air inside and outside the refrigerator. Therefore, the pressure difference between the inside and outside of the refrigerator, which occurs when opening and closing the refrigerator, cannot be eliminated. Therefore, in order to open the door, there has been a problem that a force corresponding to this pressure difference must be applied.
【０００６】本発明は、前記のような問題点を解決する
ためになされたものであって、本発明の目的は、庫内の
冷気圧が庫外の空気圧より低くなった場合、例えば、冷
蔵庫を開閉した直後に冷蔵庫の内部と外部の圧力を均衡
させることによって、冷蔵庫のドアを容易に開放するこ
とができるように成す冷蔵庫の圧力平衡装置を提供する
ことにある。The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is, for example, when a cold air pressure inside the refrigerator is lower than an air pressure outside the refrigerator, for example, a refrigerator. It is an object of the present invention to provide a pressure balance device for a refrigerator in which the door of the refrigerator can be easily opened by balancing the pressure inside and outside the refrigerator immediately after opening and closing.
【０００７】[0007]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明に基づく冷蔵庫の圧力平衡装置は、一端は
庫内空気と連通し、他端は庫外空気と連通されるように
成し、その間に除霜水を貯水するリザーバ管を含み、リ
ザーバ管は、庫内冷気圧が庫外空気圧より小さい時に
は、庫外空気が庫内に流入するように成し、一方、庫内
冷気圧と庫外空気圧が同一である時には、庫内外の空気
が流動できないように成す。In order to achieve the above-mentioned object, a pressure balancing device for a refrigerator according to the present invention has one end communicating with the inside air and the other end communicating with the outside air. And a reservoir pipe for storing defrosting water therein, and the reservoir pipe is configured to allow the outside air to flow into the inside of the refrigerator when the inside cold air pressure is lower than the outside air pressure, while When the cold air pressure and the outside air pressure are the same, the inside and outside air cannot flow.
【０００８】また、圧力平衡装置は、リザーバ管の両端
を連結するバイパス管を含むようにするとよい。バイパ
ス管の一端の庫内空気流動部は、貯水された水の最高水
位よりも高い位置に設置され、バイパス管の他端の庫外
空気流動部は、庫内冷気圧が庫外空気圧と同一である時
は、貯水された水の水位よりも低い位置になり、一方、
庫内冷気圧が庫外空気圧より低い時は、貯水された水の
水位よりも高い位置となる位置に設置される。Further, the pressure balancing device may include a bypass pipe connecting both ends of the reservoir pipe. The inside air flow section at one end of the bypass pipe is installed at a position higher than the highest water level of the stored water, and the outside air flow section at the other end of the bypass pipe has the same cold air pressure as the outside air pressure. Is lower than the water level of the stored water, while
When the cold air pressure inside the cold storage is lower than the air pressure outside the cold storage, it is installed at a position higher than the water level of the stored water.
【０００９】さらに、前記圧力平衡装置は、リザーバ管
の庫内空気流動部の貯水された水の最高水位よりも高い
位置に庫外空気流入口を設け、この流入口を開閉する開
閉部材を含むようにしてもよい。この場合、前記庫外空
気流入口は、庫内冷気圧が庫外空気圧と同一である時
は、前記開閉部材によって閉鎖され、庫内冷気圧が庫外
空気圧より低い時は、前記開閉部材によって開放され
る。Further, the pressure balancing apparatus includes an outside air inlet provided at a position higher than the highest water level of the stored water in the inside air flowing portion of the reservoir pipe, and includes an opening / closing member for opening and closing this inlet. You may choose not to. In this case, the outside air inlet is closed by the opening / closing member when the inside cold air pressure is equal to the outside air pressure, and is closed by the opening / closing member when the inside cold air pressure is lower than the outside air pressure. It will be released.
【００１０】[0010]
【作用】本発明の圧力平衡装置によれば、冷蔵庫の庫内
冷気圧と庫外空気圧が同一である時は、バイパス管の庫
外空気流動部が貯水された水で満されており、または、
庫内空気流動部の庫外空気流動口が閉鎖されているの
で、庫内外の空気の流動は遮断される。According to the pressure balancing apparatus of the present invention, when the cold air pressure inside the refrigerator and the air pressure outside the refrigerator are the same, the outside air flowing portion of the bypass pipe is filled with the stored water, or ,
Since the outside air flowing port of the inside air flowing portion is closed, the flow of air inside and outside the inside is blocked.
【００１１】一方、庫内冷気圧が庫外空気圧より低い時
は、リザーバ管内の庫内側の水位が上昇して、圧力平衡
装置の庫外空気流動部が水面の上に露出されるようにな
り、または、庫内空気流動部の庫外空気流動口が開放す
るので、庫内外の空気が相互に流動することができるよ
うになる。従って、庫外空気が庫内に流入して、冷蔵庫
の内部及び外部の圧力が平衡を成すようになる。On the other hand, when the cold air pressure inside the cold storage is lower than the air pressure outside the cold storage, the water level inside the cold storage inside the reservoir pipe rises, and the air flowing part outside the cold storage of the pressure balancing device is exposed above the water surface. Or, since the outside air flowing port of the inside air flowing portion is opened, the air inside and outside the inside can flow with each other. Therefore, the outside air flows into the inside of the refrigerator, and the pressure inside and outside the refrigerator is balanced.
【００１２】[0012]
【実施例】図１は、本発明に基づく冷蔵庫の圧力平衡装
置の設置状態を示した図面である。また、図２は、本発
明に基づく圧力平衡装置の第１実施例を示した拡大断面
図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view showing the installed state of a pressure balancing apparatus for a refrigerator according to the present invention. FIG. 2 is an enlarged sectional view showing a first embodiment of the pressure balancing device according to the present invention.
【００１３】本発明に基づく冷蔵庫の圧力平衡装置は、
冷蔵庫内において発生した除霜水を外部に排出させるた
めに、冷蔵庫の内部と連通する第１排水管１０と、冷蔵
庫の外部と連通する第２排水管２０と、第１排水管１０
と第２排水管２０を連結して、常に一定量の除霜水を貯
水することによって、外部の空気が庫内に流入されない
ように成すと同時に庫内の冷気が外部に流出されないよ
うに成すリザーバ管３０と、リザーバ管の両端に接続さ
れたバイパス管４０とから構成される。なお、参照符号
１はキャビネット、参照符号２は冷蔵庫ドア、参照符号
３はガスケットを示す。A pressure balance device for a refrigerator according to the present invention comprises:
A first drain pipe 10 communicating with the inside of the refrigerator, a second drain pipe 20 communicating with the outside of the refrigerator, and a first drain pipe 10 in order to discharge defrost water generated in the refrigerator to the outside.
By connecting the second drain pipe 20 with the second drain pipe 20 and always storing a fixed amount of defrost water, it is possible to prevent outside air from flowing into the refrigerator and at the same time prevent cold air in the refrigerator from flowing out. It is composed of a reservoir pipe 30 and a bypass pipe 40 connected to both ends of the reservoir pipe. Reference numeral 1 indicates a cabinet, reference numeral 2 indicates a refrigerator door, and reference numeral 3 indicates a gasket.
【００１４】第１排水管１０は、冷蔵庫の内部に設置さ
れ、その上端が蒸発器（図示せず）が設置された冷却室
に接続されており、蒸発器の周囲の霜が溶けた水、すな
わち、除霜水の流動を案内する。The first drain pipe 10 is installed inside a refrigerator, and its upper end is connected to a cooling chamber in which an evaporator (not shown) is installed, and water in which frost around the evaporator is melted, That is, it guides the flow of defrost water.
【００１５】第２排水管２０は、冷蔵庫の外部に配設さ
れた機械室５に位置され、第１排水管１０を通過した除
霜水を外部に排出するように案内する。第２排水管２０
を経た除霜水は、冷蔵庫の底部の蒸発皿６に集められ、
圧縮器の熱によって蒸発され除去される。The second drain pipe 20 is located in the machine room 5 disposed outside the refrigerator, and guides the defrost water that has passed through the first drain pipe 10 to be discharged to the outside. Second drainage pipe 20
The defrosted water that has passed through is collected in the evaporation tray 6 at the bottom of the refrigerator,
It is evaporated and removed by the heat of the compressor.
【００１６】リザーバ管３０は、機械室５内に位置さ
れ、第１排水管１０と第２排水管２０を接続させ、常に
一定量の除霜水が貯水されるべくＵ型に形成される。こ
のようにリザーバ管に常に一定量の除霜水が貯水されて
いるので、外部の空気が冷蔵庫の内部に流入することは
なく、また、冷蔵庫の内部の冷気が外部に漏出すること
もない。なお、リザーバ管はこのような役割を遂行する
ことができるものであれば、その形状が必ずしもＵ型に
限定されるものではない。また、リザーバ管３０は必ず
しも庫外に配置する必要はなく、庫内の壁に設置しても
よい。The reservoir pipe 30 is located in the machine room 5, connects the first drain pipe 10 and the second drain pipe 20, and is formed in a U shape so that a constant amount of defrost water can be stored. In this way, since a certain amount of defrosted water is always stored in the reservoir pipe, the outside air does not flow into the refrigerator, and the cold air inside the refrigerator does not leak outside. The shape of the reservoir tube is not necessarily limited to the U shape as long as it can fulfill such a role. Further, the reservoir pipe 30 does not necessarily have to be arranged outside the refrigerator, but may be installed on the wall inside the refrigerator.
【００１７】バイパス管４０は、図２に図示したよう
に、リザーバ管３０の一側３１と他側３２を連通するよ
うに形成される。リザーバ管３０の一側３１と連通する
バイパス管４０の一部すなわち庫外空気流動部４１は、
リザーバ管３０の一側３１に形成される除霜水の正常状
態水位線Ｘと庫内冷気圧が庫外空気圧より低くなった場
合、特に、冷蔵庫のドアを開閉した直後の水位線Ｙとの
間に位置している。リザーバ管３０の他側３２と連通さ
れるバイパス管４０の他端部すなわち庫外空気流動部４
２は、リザーバ管３０の他側３２に形成される除霜水の
正常状態水位線ＸＸ及び庫内冷気圧が庫外空気圧より低
くなった場合、特に、冷蔵庫のドアを開閉した直後の水
位線ＹＹより上に位置している。As shown in FIG. 2, the bypass pipe 40 is formed so as to connect the one side 31 and the other side 32 of the reservoir pipe 30. A part of the bypass pipe 40 that communicates with the one side 31 of the reservoir pipe 30, that is, the outside air flowing portion 41,
When the normal state water level line X of the defrosted water formed on the one side 31 of the reservoir pipe 30 and the cold air pressure inside the cold storage become lower than the air pressure outside the cold storage, especially with the water level line Y immediately after opening and closing the door of the refrigerator. Located in between. The other end of the bypass pipe 40, which communicates with the other side 32 of the reservoir pipe 30, that is, the outside air flow portion 4
2 is the normal state water level line XX of the defrosted water formed on the other side 32 of the reservoir pipe 30 and the water level line immediately after opening and closing the refrigerator door when the cold air pressure inside the cold storage is lower than the air pressure outside the cold storage. It is located above YY.
【００１８】本明細書において正常状態とは、冷蔵庫の
ドアが閉められている通常的な状態を意味しており、こ
の状態においては、庫内と庫外との圧力差は生じておら
ず、従って、リザーバ管３０に貯水された除霜水の水位
は、図２のＸとＸＸになる。即ち、正常状態において、
除霜水の水位はリザーバ管３０の一側３１と他側３２に
おいて同一である。In the present specification, the normal state means a normal state in which the refrigerator door is closed. In this state, there is no pressure difference between the inside and outside of the refrigerator, Therefore, the water level of the defrost water stored in the reservoir pipe 30 becomes X and XX in FIG. That is, in the normal state,
The water level of the defrost water is the same on one side 31 and the other side 32 of the reservoir pipe 30.
【００１９】一方、本明細書において、庫内冷気圧が庫
外空気より低い場合は、例えば、冷蔵庫のドアを開閉し
た直後に冷蔵庫の内部と外部の圧力差が生ずる状態を言
うものである。冷蔵庫ドアが急に閉められると同時に、
蒸発器に隣接したフアンが稼動して庫内の空気を蒸発器
側に引き寄せるので、庫内の圧力が庫外の圧力より低く
なる。しかも、蒸発器を通過して空気の温度が下がる
と、庫内の圧力も低くなる。従って、リザーバ管３０に
貯水された除霜水の水位は、図２のＹとＹＹになる。即
ち、冷蔵庫内部と連通する第１排水管１０の圧力が、冷
蔵庫の外部と連通する第２排水管２０の圧力より低くな
るために、この圧力差によって、冷蔵庫のドアを開閉し
た直後の除霜水の水位はリザーバ管３０の一側３１にお
いては、正常状態の水位Ｘより低いＹに位置し、リザー
バ管３０の他側３２においては正常状態の水位ＸＸより
高いＹＹに位置するようになる。On the other hand, in the present specification, when the cold air pressure inside the refrigerator is lower than the air outside the refrigerator, for example, it means a state in which a pressure difference between the inside and outside of the refrigerator occurs immediately after opening and closing the door of the refrigerator. At the same time the refrigerator door is suddenly closed
Since the fan adjacent to the evaporator operates to draw the air inside the refrigerator to the evaporator side, the pressure inside the refrigerator becomes lower than the pressure outside the refrigerator. Moreover, when the temperature of the air passes through the evaporator and the temperature of the air decreases, the pressure inside the storage also decreases. Therefore, the water levels of the defrost water stored in the reservoir pipe 30 are Y and YY in FIG. That is, the pressure of the first drainage pipe 10 communicating with the inside of the refrigerator becomes lower than the pressure of the second drainage pipe 20 communicating with the outside of the refrigerator. Therefore, due to this pressure difference, defrosting immediately after opening and closing the door of the refrigerator The water level of the water is located on one side 31 of the reservoir tube 30 at Y lower than the normal water level X, and on the other side 32 of the reservoir tube 30 is located at YY higher than the normal water level XX.
【００２０】図３は、本発明に基づく圧力平衡装置の第
２実施例を示した拡大側面図である。第２実施例によれ
ば、圧力平衡装置は冷蔵庫の内部に連通して除霜水を排
水させる第１排水管１０と、冷蔵庫の外部に連通した第
２排水管２０と、第１及び第２排水管を連結するリザー
バ管１３０とからなる。FIG. 3 is an enlarged side view showing a second embodiment of the pressure balancing device according to the present invention. According to the second embodiment, the pressure balancing device communicates with the inside of the refrigerator to drain the defrosting water, the first drain pipe 10, the second drain pipe 20 communicating with the outside of the refrigerator, and the first and second drain pipes. It is composed of a reservoir pipe 130 that connects a drain pipe.
【００２１】第１排水管１０と連結するリザーバ管１３
０の一側１３４には、外部と連通するように庫外空気流
入口１３２が形成されており、庫外空気流入口１３２の
周囲には、開閉部材１４０を支持するフランジ部１３３
が形成されている。A reservoir pipe 13 connected to the first drain pipe 10.
An outside air inlet 132 is formed on one side 134 of 0 to communicate with the outside, and a flange portion 133 supporting the opening / closing member 140 is provided around the outside air inlet 132.
Are formed.
【００２２】開閉部材１４０は、リザーバ管１３０に貯
水された除霜水の水面の上昇によって浮遊上昇して、庫
外空気流入口１３２を開閉するように形成される。本実
施例において開閉部材１４０は、第１排水管１０と連結
されるリザーバ管１３０の内壁に沿って上下移動する。
開閉部材１４０は、第１排水管１０と連結されるリザー
バ管１３０の庫外空気流動口１３２の内径より小さい外
径を有するステム部１４１と、ステム部１４１と一体に
形成され、庫外空気流入口１３２を開閉するために庫外
空気流入口１３２より大きい直径を有するヘッド部１４
２とから成る。ヘッド部１４２の下部面はフランジ部１
３３の上部面に密着されるように成し、庫内及び庫外の
圧力が同一である時は、これらの間を通じて庫外空気が
流入しないようになっている。さらに、庫外空気の流入
を導くグルーブ１４３を、ステム部１４１に長さ方向に
形成する。The opening / closing member 140 is formed so as to float and rise as the water surface of the defrosted water stored in the reservoir pipe 130 rises to open and close the outside air inlet 132. In this embodiment, the opening / closing member 140 moves up and down along the inner wall of the reservoir pipe 130 connected to the first drain pipe 10.
The opening / closing member 140 is integrally formed with the stem portion 141 having an outer diameter smaller than the inner diameter of the outside air flow port 132 of the reservoir pipe 130 connected to the first drain pipe 10, and the outside air flow. The head portion 14 having a larger diameter than the outside air inlet 132 for opening and closing the inlet 132.
It consists of 2. The lower surface of the head portion 142 is the flange portion 1
When the pressures inside and outside the refrigerator are the same, the outside air does not flow in between them when they are in close contact with each other. Further, a groove 143 for guiding the inflow of outside air is formed in the stem portion 141 in the length direction.
【００２３】このように構成することによって、冷蔵庫
内部の圧力が外部の圧力より低い場合には、庫内空気流
動部１３４の除霜水の水位の上昇に伴って、開閉部材１
４０が上昇して、庫外空気流入口１３２が開放される。
庫外空気流入口１３２が開放された状態においては、グ
ルーブ１４３に沿って外部の空気が流入するので、庫内
空気流動部１３４内の除霜水の水位が下降するととも
に、開閉部材１４０が下降して庫外空気流入口１３２が
閉鎖される。With this structure, when the pressure inside the refrigerator is lower than the pressure outside, the opening / closing member 1 is accompanied by an increase in the water level of the defrosting water in the inside air flowing section 134.
40 rises and the outside air inlet 132 is opened.
When the outside air inlet 132 is opened, external air flows in along the groove 143, so that the defrosting water level in the inside air flowing portion 134 is lowered and the opening / closing member 140 is lowered. Then, the outside air inlet 132 is closed.
【００２４】このように構成された本発明に基づく冷蔵
庫の圧力平衡装置の作用を以下に説明する。The operation of the pressure balancing apparatus for a refrigerator according to the present invention thus constructed will be described below.
【００２５】先ず、第１実施例において、蒸発器が収容
された蒸発室からの除霜水は、第１排水管１０に沿って
流れリザーバ管３０に貯水される。リザーバ管３０に一
定量の除霜水が貯水されると、除霜水はリザーバ管３０
から溢れて、第２排水管２０を通じて外部、即ち、蒸発
皿６に集められ、そこで蒸発される。First, in the first embodiment, defrost water from the evaporation chamber accommodating the evaporator flows along the first drain pipe 10 and is stored in the reservoir pipe 30. When a certain amount of defrost water is stored in the reservoir pipe 30, the defrost water is stored in the reservoir pipe 30.
Overflows from the second drain pipe 20 and is collected outside, that is, in the evaporation tray 6, and evaporated there.
【００２６】リザーバ管３０に除霜水が貯水されて正常
状態に成すようになり、この状態において除霜水の水位
はＸとＸＸである。即ち、第２排水管２０と連結された
リザーバ管３０の一側３１における除霜水の水位Ｘと第
１排水管１０と連結されたリザーバ管３０の他側３２に
おける除霜水の水位ＸＸは、同一水位になる。The defrosting water is stored in the reservoir pipe 30 to be in a normal state. In this state, the water levels of the defrosting water are X and XX. That is, the water level X of defrost water on one side 31 of the reservoir pipe 30 connected to the second drain pipe 20 and the water level XX of defrost water on the other side 32 of the reservoir pipe 30 connected to the first drain pipe 10 are , At the same water level.
【００２７】この状態、即ち、正常状態において冷蔵庫
のドアを開けてから閉めると、冷蔵庫内部の圧力が外部
より低くなり、これに伴う第１排水管１０と第２排水管
２０の圧力差のために、リザーバ管３０の一側３１内の
水がバイパス管４０を通じてリザーバ管３０の他側３２
に流入する。従って、リザーバ管３０の他側３２の除霜
水の水位は相対的に高くなってＹＹになり、リザーバ管
３０の一側３１の水位は相対的に低くなってＹになる。
従って、除霜水により満されていたバイパス管４０の一
側通路４１が開放され、第２排水管２０を通じてリザー
バ管３０の一側３１上部にあった外部の空気がバイパス
管４０から第１排水管１０を経て冷蔵庫内部に流入し、
これによって、冷蔵庫内部及び外部の圧力が平衡状態を
維持するようになる。このようにバイパス管４０を通じ
て、外部の空気が流入して冷蔵庫の内部と外部の圧力が
平衡になるに伴って、リザーバ管の他側３２の除霜水の
水位ＹＹは漸次下がってＸＸになり、リザーバ管の一側
３１の除霜水の水位Ｙは漸次上ってＸになり、正常状態
に戻る。In this state, that is, when the refrigerator door is opened and then closed in a normal state, the pressure inside the refrigerator becomes lower than the outside pressure, and the pressure difference between the first drain pipe 10 and the second drain pipe 20 is accompanied by this. In addition, the water in one side 31 of the reservoir pipe 30 passes through the bypass pipe 40 to the other side 32 of the reservoir pipe 30.
Flow into. Therefore, the water level of the defrosting water on the other side 32 of the reservoir tube 30 becomes relatively high and becomes YY, and the water level of the one side 31 of the reservoir tube 30 becomes relatively low and becomes Y.
Therefore, the one-side passage 41 of the bypass pipe 40, which was filled with the defrosting water, is opened, and the external air existing above the one side 31 of the reservoir pipe 30 through the second drain pipe 20 is discharged from the bypass pipe 40 into the first drainage water. Flows into the refrigerator through the pipe 10,
As a result, the pressure inside and outside the refrigerator maintains a balanced state. In this way, as the outside air flows in through the bypass pipe 40 and the pressure inside and outside the refrigerator becomes equilibrium, the water level YY of the defrosting water on the other side 32 of the reservoir pipe gradually decreases to XX. The water level Y of the defrosting water on the one side 31 of the reservoir pipe gradually rises to X and returns to the normal state.
【００２８】また、第２実施例によれば、リザーバ管１
３０に除霜水が一定量貯水された状態において（この
時、庫外空気流入口１３２は、開閉部材１４０によって
閉鎖された状態である）、冷蔵庫のドアを開けてから閉
めると、冷蔵庫内部の圧力が低くなって、第１排水管１
０側の水位が相対的に高くなり、これに伴って開閉部材
１４０が浮遊上昇して庫外空気流入口１３２を開放す
る。庫外空気流入口１３２が開放されると、外部の空気
がステム部１４１のグルーブ１４３を経て庫内に流入す
るので、冷蔵庫の内部及び外部の圧力が平衡状態に復帰
するとともに、庫内空気流動部１３４内の水位が下降す
る。これに伴って開閉部材１４０も下降して、庫外空気
流入口１３２が閉鎖される。Further, according to the second embodiment, the reservoir pipe 1
When a certain amount of defrost water is stored in 30 (at this time, the outside air inlet 132 is closed by the opening / closing member 140), when the door of the refrigerator is opened and then closed, the inside of the refrigerator is closed. The pressure has dropped and the first drain pipe 1
The water level on the 0 side becomes relatively high, and accordingly the opening / closing member 140 floats up to open the outside air inlet 132. When the outside air inlet 132 is opened, the outside air flows into the inside of the refrigerator via the groove 143 of the stem portion 141, so that the pressure inside and outside the refrigerator returns to the equilibrium state and the inside air flow The water level in the section 134 drops. Along with this, the opening / closing member 140 also descends and the outside air inlet 132 is closed.
【００２９】その後、除霜水が発生しても、開閉部材１
４０のステム部１４１とリザーバ管１３０との間の隙間
を通じて円滑にリザーバ管１３０に流れる。また、リザ
ーバ管１３０には一定量の除霜水が貯水されるので、庫
内の冷気の外部への漏出を防止することができるととも
に外部の空気が冷蔵庫内部に流入するのを防止すること
ができる。After that, even if defrost water is generated, the opening / closing member 1
The fluid flows smoothly into the reservoir tube 130 through the gap between the stem portion 141 of the 40 and the reservoir tube 130. Further, since a certain amount of defrosted water is stored in the reservoir pipe 130, it is possible to prevent the cold air in the refrigerator from leaking to the outside and prevent the outside air from flowing into the refrigerator. it can.
【００３０】[0030]
【発明の効果】以上説明したように、本発明に基づく冷
蔵庫の圧力平衡装置は、第１実施例によれば、除霜水を
貯水して排水させるリザーバ管の一側と他側を連通する
バイパス管を設けて、冷蔵庫のドアを開閉した直後にバ
イパス管を通じて外部の空気を庫内に流入させることに
より冷蔵庫の内部と外部の圧力を平衡になすようにし、
また、第２実施例によれば、除霜水を貯水して排水させ
るリザーバ管に庫外空気流入口を形成し、除霜水の水位
変化に伴って上昇または下降して庫外空気流入口を開閉
する開閉部材を設け、これによって冷蔵庫の内部及び外
部の圧力を平衡に成すようにしている。As described above, the pressure balancing device for a refrigerator according to the present invention, according to the first embodiment, connects one side and the other side of the reservoir pipe for storing and discharging defrost water. By providing a bypass pipe, and immediately after opening and closing the door of the refrigerator, to let external air flow into the refrigerator through the bypass pipe to balance the pressure inside and outside the refrigerator,
Further, according to the second embodiment, the outside air inlet is formed in the reservoir pipe for storing and discharging the defrost water, and the outside air inlet is raised or lowered according to the change in the water level of the defrost water. An opening / closing member for opening / closing the refrigerator is provided so that the pressure inside and outside the refrigerator is balanced.
【００３１】このように冷蔵庫のドアが閉められた状態
において、冷蔵庫内外の圧力平衡が成されるので、冷蔵
庫のドアを容易に開放することができる。Since the pressure inside and outside the refrigerator is balanced when the refrigerator door is closed as described above, the refrigerator door can be easily opened.
【図１】本発明に基づく圧力平衡装置を設けた冷蔵庫の
一部切取り側面図である。FIG. 1 is a partially cutaway side view of a refrigerator provided with a pressure balancing device according to the present invention.
【図２】本発明に基づく圧力平衡装置の第１実施例を示
した拡大断面図である。FIG. 2 is an enlarged sectional view showing a first embodiment of the pressure balancing device according to the present invention.
【図３】本発明に基づく圧力平衡装置の第２実施例を示
した拡大断面図である。FIG. 3 is an enlarged sectional view showing a second embodiment of the pressure balancing device according to the present invention.
【図４】従来の排水管を設けた冷蔵庫の一部切取り側面
図である。FIG. 4 is a partially cutaway side view of a conventional refrigerator provided with a drainage pipe.
【符号の説明】 １０ 第１排水管 ２０ 第２排水管 ３０，１３０ リザーバ管 ４０ バイパス管 １３２ 庫外空気流入口 １４０ 開閉部材 Ｘ，ＸＸ 正常状態の除霜水の水位線 Ｙ，ＹＹ 冷蔵庫ドアを開閉した直後の除霜水の水位線[Explanation of Codes] 10 First drain pipe 20 Second drain pipe 30,130 Reservoir pipe 40 Bypass pipe 132 Outside air inlet 140 Opening / closing member X, XX Normal defrost water level line Y, YY Refrigerator door Water level line of defrost water immediately after opening and closing
Claims (5)
気と連通し、その間に除霜水を貯水するリザーバ管を設
けた冷蔵庫において、 前記リザーバ管は庫内冷気圧が庫外空気圧より低い時に
は、庫外空気が庫内に流入されるように成し、一方、庫
内冷気圧と庫外空気圧が同一である時には、庫内外の空
気が流動できないようにしたことを特徴とする圧力平衡
装置。1. A refrigerator provided with a reservoir pipe for communicating defrosting water between one end of which communicates with the inside air and the other end of which communicates with outside air. When the air pressure is lower than the outside air pressure, the outside air is made to flow into the inside of the refrigerator, while when the inside cold air pressure and the outside air pressure are the same, the inside and outside air cannot flow. And pressure balance device.
ス管を含むことを特徴とする請求項１記載の圧力平衡装
置。2. The pressure balancing device according to claim 1, further comprising a bypass pipe connecting both ends of the reservoir pipe.
は、貯水された水の最高水位よりも高い位置に設置さ
れ、前記バイパス管の他端の庫外空気流動部は、庫内冷
気圧が庫外空気圧と同一である時は、貯水された水の水
位よりも低い位置となり、庫内冷気圧が庫外空気圧より
低い時、貯水された水の水位よりも高い位置となる位置
に設置されたことを特徴とする請求項２記載の圧力平衡
装置。3. The inside air flow part at one end of the bypass pipe is installed at a position higher than the highest water level of the stored water, and the outside air flow part at the other end of the bypass pipe is cooled inside the store. When the atmospheric pressure is the same as the outside air pressure, the position is lower than the water level of the stored water, and when the internal cold pressure is lower than the outside air pressure, the position is higher than the stored water level. The pressure balancing device according to claim 2, wherein the pressure balancing device is installed.
された水の最高水位よりも高い位置に庫外空気流入口を
設け、さらに前記庫外空気流入口を開閉する開閉部材を
含むことを特徴とする請求項１記載の圧力平衡装置。4. An outside air inlet is provided at a position higher than a maximum water level of stored water in an inside air flowing portion of the reservoir pipe, and an opening / closing member for opening and closing the outside air inlet is included. The pressure balancing device according to claim 1, wherein:
外空気圧と同一である時は、前記開閉部材によって閉鎖
され、庫内冷気圧が庫外空気圧より低い時は、前記開閉
部材によって開放されることを特徴とする請求項４記載
の圧力平衡装置。5. The outside air inlet is closed by the opening / closing member when the inside cold air pressure is equal to the outside air pressure, and the opening / closing when the inside cold air pressure is lower than the outside air pressure. The pressure balancing device according to claim 4, wherein the pressure balancing device is opened by a member.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR930025777 | 1993-11-30 | ||
| KR1994-2167 | 1994-02-04 | ||
| KR1993-25777 | 1994-02-04 | ||
| KR2019940002167U KR0117771Y1 (en) | 1994-02-04 | 1994-02-04 | Balance equipment of interior and exterior pressure for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07190602A true JPH07190602A (en) | 1995-07-28 |
| JP2637702B2 JP2637702B2 (en) | 1997-08-06 |
Family
ID=26630014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6285118A Expired - Lifetime JP2637702B2 (en) | 1993-11-30 | 1994-11-18 | Refrigerator pressure equalizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2637702B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7340916B2 (en) * | 2005-11-17 | 2008-03-11 | Kim Brian S | Pressure equalizing device for refrigerators |
| CN102706074A (en) * | 2012-06-07 | 2012-10-03 | 小天鹅（荆州）电器有限公司 | Drain pipe assembly for freezing cabinet and freezing cabinet with same |
| ES2414293A1 (en) * | 2012-01-17 | 2013-07-18 | Fagor, S.Coop. | Pressure equalizing valve for a cooling appliance and cooling appliance incorporating said valve |
| WO2015185090A1 (en) * | 2014-06-02 | 2015-12-10 | Arcelik Anonim Sirketi | Refrigeration appliance compressor having an integrated water collection receptacle |
| WO2016136267A1 (en) * | 2015-02-27 | 2016-09-01 | ダイキン工業株式会社 | Refrigeration apparatus for containers |
| EP3364135A1 (en) * | 2017-02-16 | 2018-08-22 | Whirlpool Corporation | Refrigeration appliance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5363084U (en) * | 1976-10-29 | 1978-05-27 | ||
| JPS60122074U (en) * | 1984-01-26 | 1985-08-17 | 北芝電機株式会社 | pressure regulating valve |
| JPH01133097U (en) * | 1988-02-25 | 1989-09-11 | ||
| JPH03188209A (en) * | 1989-12-18 | 1991-08-16 | Nkk Corp | Apparatus for exhausting drain in gas piping |
-
1994
- 1994-11-18 JP JP6285118A patent/JP2637702B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5363084U (en) * | 1976-10-29 | 1978-05-27 | ||
| JPS60122074U (en) * | 1984-01-26 | 1985-08-17 | 北芝電機株式会社 | pressure regulating valve |
| JPH01133097U (en) * | 1988-02-25 | 1989-09-11 | ||
| JPH03188209A (en) * | 1989-12-18 | 1991-08-16 | Nkk Corp | Apparatus for exhausting drain in gas piping |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7340916B2 (en) * | 2005-11-17 | 2008-03-11 | Kim Brian S | Pressure equalizing device for refrigerators |
| ES2414293A1 (en) * | 2012-01-17 | 2013-07-18 | Fagor, S.Coop. | Pressure equalizing valve for a cooling appliance and cooling appliance incorporating said valve |
| CN102706074A (en) * | 2012-06-07 | 2012-10-03 | 小天鹅（荆州）电器有限公司 | Drain pipe assembly for freezing cabinet and freezing cabinet with same |
| WO2015185090A1 (en) * | 2014-06-02 | 2015-12-10 | Arcelik Anonim Sirketi | Refrigeration appliance compressor having an integrated water collection receptacle |
| WO2016136267A1 (en) * | 2015-02-27 | 2016-09-01 | ダイキン工業株式会社 | Refrigeration apparatus for containers |
| JP2016164487A (en) * | 2015-02-27 | 2016-09-08 | ダイキン工業株式会社 | Freezer device for container |
| EP3258193A4 (en) * | 2015-02-27 | 2018-10-17 | Daikin Industries, Ltd. | Refrigeration apparatus for containers |
| US11015855B2 (en) | 2015-02-27 | 2021-05-25 | Daikin Industries, Ltd. | Refrigeration apparatus for containers |
| EP3364135A1 (en) * | 2017-02-16 | 2018-08-22 | Whirlpool Corporation | Refrigeration appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2637702B2 (en) | 1997-08-06 |
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