JP4281003B2 - refrigerator - Google Patents

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JP4281003B2
JP4281003B2 JP2004320448A JP2004320448A JP4281003B2 JP 4281003 B2 JP4281003 B2 JP 4281003B2 JP 2004320448 A JP2004320448 A JP 2004320448A JP 2004320448 A JP2004320448 A JP 2004320448A JP 4281003 B2 JP4281003 B2 JP 4281003B2
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air passage
refrigerator
damper
cooler
freezer compartment
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JP2006132820A (en
JP2006132820A5 (en
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活佳 藤沢
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

本発明は、冷却器により冷却された冷気を送風機によって風路に吐出させ、一旦上方に上げてから下方に位置する冷凍室に送る風路構成を備えた冷蔵庫に関するものである。   The present invention relates to a refrigerator having an air passage configuration in which cold air cooled by a cooler is discharged to an air passage by a blower, and once raised upward, is sent to a freezer compartment located below.

従来の冷蔵庫は複数の貯蔵室を有し、上に冷蔵室、この冷蔵室より下方に冷凍室を備え、貯蔵室の背面側には冷却器室を備え、冷却器室内に、冷却器とその上方に位置する送風機、この冷却器の下方に位置する除霜ヒータを配置する。冷凍室吐出風路は送風機から冷凍室への風路が下方に向かい、冷蔵室吐出風路は送風機から上方の冷蔵室へ向かう。そして、これらの風路内には冷気の風量を調整するダンパが配置されている。   A conventional refrigerator has a plurality of storage rooms, a refrigeration room above, a freezing room below the refrigeration room, a cooler room on the back side of the storage room, and a cooler and its cooler in the cooler room. A blower located above and a defrost heater located below this cooler are arranged. In the freezer compartment discharge air passage, the air passage from the blower to the freezer compartment is directed downward, and the refrigerating compartment discharge air passage is directed from the blower to the upper refrigerator compartment. A damper for adjusting the amount of cool air is disposed in these air passages.

冷却器により冷却された空気は、送風機により冷却器室から吐出される。吐出された冷気は各風路のある方向に分けられ、送風機に対して下方に位置する冷凍室に対しては下方に、送風機に対して上方に位置する冷蔵室に対しては上方に向かい、それぞれ風路を通り各室に送り出される。各風路内には風量を調整するダンパが配置されており、各室の温度をコントロールしている。   The air cooled by the cooler is discharged from the cooler chamber by the blower. The discharged cold air is divided in a certain direction of each air passage, and is directed downward for the freezer compartment located below the blower, and directed upward for the refrigerator compartment located above the blower, Each is sent to each room through the air path. A damper that adjusts the air volume is arranged in each air passage to control the temperature of each room.

冷凍室吐出風路内に設置されたダンパは冷却器室と庫内との間に位置し、冷却器室の庫内側のほぼ投影部に位置している。冷却器室側に断熱壁を有し、同じく庫内側にも断熱壁を有している。これら断熱壁によりダンパは保持され、冷却器室とを断熱し、貯蔵室を断熱して、ダンパの駆動部が冷却器室の影響を受けにくくしている(例えば、特許文献1参照)。   The damper installed in the freezing chamber discharge air passage is located between the cooler room and the inside of the cabinet, and is located almost at the projection portion inside the cooler chamber. It has a heat insulating wall on the cooler room side, and also has a heat insulating wall on the inside of the cabinet. The damper is held by these heat insulating walls, insulates the cooler chamber, insulates the storage chamber, and makes the damper drive part less susceptible to the cooler chamber (see, for example, Patent Document 1).

特開2004−3710号公報(第2頁、図1)Japanese Patent Laid-Open No. 2004-3710 (2nd page, FIG. 1)

特許文献1の冷蔵庫では、送風機より下方にある部屋に対して風路を構成し、風路内に風量調整用ダンパを配しているが、その位置は送風機の下方に位置することとなる。送風機の下方には冷却器があり、風路内に配置されたダンパと前後方向で重なることになる。すなわち、ダンパの大きさとダンパの駆動部の大きさが庫内に突出することなり、食品を収納する空間部を圧迫する等の問題があった。ダンパの奥行寸法とダンパ内の風路寸法との差に加えて、ダンパを保持する断熱壁の厚さ分だけ余分に厚さを必要としていた。このため、風路に圧損を与えない様に、風路面積を狭めずにダンパ内の風路以外の構造物と、その構造物を保持する部材のサイズだけ、大きな空間を確保する必要があった。この空間は庫内に突出し、庫内収納空間を狭めていた。   In the refrigerator of Patent Document 1, an air path is configured for a room below the blower, and an air volume adjusting damper is disposed in the air path, but the position is located below the blower. There is a cooler below the blower and overlaps with a damper disposed in the air path in the front-rear direction. In other words, the size of the damper and the size of the drive portion of the damper protrude into the cabinet, and there is a problem of pressing the space for storing food. In addition to the difference between the depth of the damper and the size of the air path in the damper, an extra thickness is required for the thickness of the heat insulating wall that holds the damper. For this reason, it is necessary to secure a large space by the size of the structure other than the air passage in the damper and the member holding the structure without reducing the air passage area so as not to cause pressure loss to the air passage. It was. This space protruded into the cabinet and narrowed the storage space in the cabinet.

また、冷却器により冷却された冷気を一旦上方に上げてから下方に送風する風路もあるが、ダンパを冷却器前面に配置しているため、冷蔵室からの戻り風路を冷却器の横から戻しており、大形冷却器を配置することができない。また、貯蔵室からの戻り暖気を冷却器の横から戻すと冷却器に偏着霜するため、冷却器全幅を有効に活用することができない。また、戻り風路を取り外すことが出来ず、戻り風路前の貯蔵室の温度コントロール及び湿度コントロールができない。さらに、冷凍室用ダンパが閉時に電気的または機械的に故障に至った場合、冷凍室に冷気が入らず冷却不良に至る。   In addition, there is an air passage that raises the cold air cooled by the cooler once and then blows it downward, but because the damper is placed on the front of the cooler, the return air passage from the refrigerator compartment is connected to the side of the cooler. The large cooler cannot be installed. In addition, if the return warm air from the storage chamber is returned from the side of the cooler, it is unevenly frosted on the cooler, so that the full width of the cooler cannot be used effectively. Moreover, the return air passage cannot be removed, and the temperature control and humidity control of the storage room in front of the return air passage cannot be performed. Furthermore, when the freezer damper is closed electrically or mechanically, cold air does not enter the freezer, resulting in poor cooling.

本発明は、上記のよう課題を解決するためになされたもので、食品収納空間を広くすることができ、また、風路の圧損を軽減し、消費電力量を低減することができ、冷却能力を高めることが出来る冷蔵庫を提供することを目的とする。   The present invention has been made to solve the above-described problems, and can widen a food storage space, reduce pressure loss in an air passage, reduce power consumption, and cooling capacity. It aims at providing the refrigerator which can raise.

本発明に係る冷蔵庫は、複数の貯蔵室を有し、少なくとも最上段に冷蔵室、最下段に冷凍室を配設し、前記冷凍室の奥側かつ上方に冷却器と送風機を配する冷却器室を配置し、前記冷却器室と前記冷凍室を連通する冷却用風路を設け、前記冷凍室からの戻り風路は前記冷却器室の手前下方から流入する冷蔵庫であって、前記送風機の下方を閉塞した閉塞壁を設けると共に、前記冷却用風路に風量を調整するダンパを設け、前記ダンパは、前記送風機の軸より上方に配設され、前記冷凍室に向かう冷却用風路が、前記ダンパに向かう上昇風路と、前記上昇風路の奥側に位置して折り返し部を通過後下方に向かう下降風路とを有し、前記送風機の側方近傍に立体交差部を設け、前記奥側の下降風路が前記立体交差部より下方において前記冷却器の前側に位置し、さらに、前記閉塞壁の最下部に庫内に通じる水抜き風路を設けたものである。 The refrigerator according to the present invention has a plurality of storage rooms, a refrigerator having at least a refrigeration room at the uppermost stage and a freezing room at the lowermost stage, and a cooler and a blower disposed on the back side and above the freezing room. place the chamber, the cooler chamber and the cooling air path communicating the freezer compartment is provided, the return air passage from the previous SL freezer compartment a refrigerator flowing from the front lower side of the cooler chamber, said blower And a damper for adjusting the air volume is provided in the cooling air passage, and the damper is disposed above the fan shaft, and a cooling air passage toward the freezer compartment is provided. A rising air passage toward the damper, and a downward air passage that is located on the back side of the ascending air passage and passes through the folded portion and then goes downward, and a three-dimensional intersection is provided near the side of the blower. The descending air path on the back side is below the three-dimensional intersection and the cooler Located on the side, further, it is provided with a drain air duct leading to the refrigerator at the bottom of the closing wall.

本発明に係る冷蔵庫は、送風機からの冷気を一旦上方に上げて冷却室の奥の構造物がない側に集め、この位置に配置したダンパによって風量調節をして冷気を各部屋に導くようにしたので、空間部を拡大することができ、食品収納空間を広がることができる。また、閉塞壁の最下部に庫内に通じる水抜き風路を設けたので、閉塞壁部分の着霜による送風機の停止などの機能障害を防止することができる。
In the refrigerator according to the present invention, the cool air from the blower is once raised upward and collected on the side where there is no structure behind the cooling chamber, and the air volume is adjusted by a damper disposed at this position so that the cool air is guided to each room. Therefore, a space part can be expanded and a food storage space can be expanded. Moreover, since the drainage air path which leads to the inside of the store | warehouse | chamber was provided in the lowest part of the obstruction | occlusion wall, functional troubles, such as a stop of the air blower by frost formation of the obstruction | occlusion wall part, can be prevented.

図1は本発明の一実施の形態に係る冷蔵庫の斜視図である。冷蔵庫1は複数の貯蔵室に分かれており、冷蔵庫1の最上部には冷蔵室2が設けられ、冷蔵庫1の最下部左側には冷凍室3が設けられ、冷蔵庫1の最下部右側には野菜室4が設けられ、冷凍室3と冷蔵室2の間には製氷室8が設けられている。そして、冷蔵室2には開閉自在の冷蔵室扉5が取付けられ、冷凍室3には開閉自在の冷凍室扉6が取付けられており、野菜室4には開閉自在の野菜室扉7が取付けられ、製氷室8には開閉自在の製氷室扉9が取付けられている。
なお、図2に示すように、最上部に冷蔵室2、最下部に冷凍室3を設け、冷凍室3と冷蔵室2の間に別温度帯の貯蔵室、例えば野菜室4を配置することも可能である。また、冷凍室6の横に並べて別温度帯の貯蔵室を配することも可能である。
FIG. 1 is a perspective view of a refrigerator according to an embodiment of the present invention. The refrigerator 1 is divided into a plurality of storage rooms. A refrigerator compartment 2 is provided at the top of the refrigerator 1, a freezer compartment 3 is provided at the bottom left of the refrigerator 1, and vegetables are provided at the bottom right of the refrigerator 1. A chamber 4 is provided, and an ice making chamber 8 is provided between the freezer compartment 3 and the refrigerator compartment 2. A refrigerating room door 5 is attached to the refrigerating room 2, a freezing room door 6 is attached to the freezing room 3, and an openable vegetable room door 7 is attached to the vegetable room 4. The ice making chamber 8 is provided with an openable ice making chamber door 9.
In addition, as shown in FIG. 2, the refrigerator compartment 2 is provided in the uppermost part, the freezer compartment 3 is provided in the lowest part, and the storage room of another temperature zone, for example, the vegetable compartment 4, is arrange | positioned between the freezer compartment 3 and the refrigerator compartment 2. Is also possible. It is also possible to arrange a storage room in a different temperature zone alongside the freezing room 6.

図3は図1に示した冷蔵庫の要部のA−A矢視断面図、図4は図1に示した冷蔵庫の要部のB−B矢視断面図、図5は図1に示した冷蔵庫の要部のC−C矢視断面図である。図において、冷蔵庫1の冷凍室3の奥側上方向には冷却器室10が設けられており、冷却器室10内には冷却器11が配置され、冷却器11の上方には送風機12が配置され、冷却器11の下方には除霜ヒータ13が配置されている。冷却器室10は冷凍室3の背面側から野菜室4の背面側までの広さを有し、除霜ヒータ13も冷凍室3から野菜室4の背面側までの幅を有している。送風機12は、冷凍室3と野菜室4を仕切る仕切り14のほぼ奥側投影部に位置する。   3 is a cross-sectional view taken along line AA of the main part of the refrigerator shown in FIG. 1, FIG. 4 is a cross-sectional view taken along line BB of the main part of the refrigerator shown in FIG. 1, and FIG. It is CC arrow sectional drawing of the principal part of a refrigerator. In the figure, a cooler chamber 10 is provided in the upper side of the freezer compartment 3 of the refrigerator 1, a cooler 11 is disposed in the cooler chamber 10, and a blower 12 is disposed above the cooler 11. The defrost heater 13 is disposed below the cooler 11. The cooler room 10 has a width from the back side of the freezer room 3 to the back side of the vegetable room 4, and the defrost heater 13 also has a width from the freezer room 3 to the back side of the vegetable room 4. The blower 12 is located at a substantially rear projection portion of the partition 14 that partitions the freezer compartment 3 and the vegetable compartment 4.

送風機12の前面には前面壁15が設けられており、前面壁15の下方には閉塞壁16が設けられ、前面壁15の上方には分配壁17が設けられている。閉塞壁16は送風機12の軸18に対し下方に位置し、約120°以上の範囲を閉塞している。分配壁17は送風機12の軸18に対し上方に位置する。送風機12の軸18から閉塞壁16までの距離lに対し、送風機12の軸18から分配壁17までの距離mは、m/lが1.2倍以上の関係にある。また、送風機12の奥行寸法はnで、冷却器22の奥行寸法はOであり、冷凍室吐出風路24の奥行寸法はpである。   A front wall 15 is provided on the front surface of the blower 12, a blocking wall 16 is provided below the front wall 15, and a distribution wall 17 is provided above the front wall 15. The blocking wall 16 is positioned below the shaft 18 of the blower 12 and closes a range of about 120 ° or more. The distribution wall 17 is located above the shaft 18 of the blower 12. The distance m from the shaft 18 of the blower 12 to the distribution wall 17 has a relationship that m / l is 1.2 times or more of the distance l from the shaft 18 of the blower 12 to the blocking wall 16. Further, the depth dimension of the blower 12 is n, the depth dimension of the cooler 22 is O, and the depth dimension of the freezer compartment discharge air passage 24 is p.

分配壁17の上方には各貯蔵室へ通じる風路が配されており、冷凍室3に通じる冷凍室吐出風路24、製氷室8に通じる製氷室吐出風路25、及び冷蔵室2に通じる冷蔵室吐出風路26によって構成されている。冷凍室吐出風路24の内部には風量をコントロールする冷凍室用ダンパ27が配置され、製氷室吐出風路25の内部には風量をコントロールする製氷室用ダンパ28が配置されている。また、冷蔵室吐出風路26の内部には風量をコントロールをする冷蔵室用ダンパ29が配置され、各ダンパ27,28,29はそれぞれ冷凍室吹出し口30、製氷室吹出し口31、及び冷蔵室吹出し口32に通じている。   Above the distribution wall 17, air passages leading to the respective storage chambers are arranged, and lead to the freezer compartment discharge air passage 24 leading to the freezer compartment 3, the ice making chamber outlet air passage 25 leading to the ice making chamber 8, and the refrigerator compartment 2. The refrigerating chamber discharge air passage 26 is configured. A freezer compartment damper 27 for controlling the air volume is arranged inside the freezer compartment discharge air passage 24, and an ice making room damper 28 for controlling the air quantity is arranged inside the ice making chamber discharge air passage 25. In addition, a cold room damper 29 that controls the air volume is disposed inside the cold room discharge air passage 26, and each of the dampers 27, 28, and 29 has a freezer compartment outlet 30, an ice making compartment outlet 31, and a refrigerator compartment, respectively. It leads to the outlet 32.

図6は各風路24,25,26内にほぼ水平に配置されたダンパ27,28,29の斜視図、図7は図6のD部の拡大図、図8は図6の要部の断面図である。ダンパ27(28、29)(ダンパ風路幅q)には駆動部34が設けられており、この駆動部34には一端が軸37によりフレーム38(フレーム幅r)に支持されたバッフル35の他端に設けた軸36が連結されており、バッフル35は駆動部34により開閉自在に保持されている。そして、図8に示すようにバッフル35がフレーム38に当接したときは(実線の状態)風路24(25,26)を閉じ、バッフル35が矢印方向に回動したときは(波線の状態)、風路24(25,26)を開放する。   6 is a perspective view of dampers 27, 28, and 29 disposed substantially horizontally in the air passages 24, 25, and 26, FIG. 7 is an enlarged view of a portion D in FIG. 6, and FIG. 8 is a main portion of FIG. It is sectional drawing. The damper 27 (28, 29) (damper air passage width q) is provided with a drive unit 34. The drive unit 34 has a baffle 35 having one end supported on a frame 38 (frame width r) by a shaft 37. A shaft 36 provided at the other end is connected, and the baffle 35 is held by a drive unit 34 so as to be freely opened and closed. As shown in FIG. 8, when the baffle 35 comes into contact with the frame 38 (solid line state), the air passage 24 (25, 26) is closed, and when the baffle 35 rotates in the direction of the arrow (wavy line state). ), The air passage 24 (25, 26) is opened.

ダンパ27(28、29)は、図4に示すように、風路を構成する断熱部材に囲まれて保持されており、ダンパ27(28、29)の庫内側は手前側断熱材41によって断熱され、奥側は奥側断熱材42によって保持されている。
冷凍室3につながる冷凍室吐出風路24内の冷凍室用ダンパ27は、送風機12の軸18に対して上方に位置している。そして、一旦上方に伸びる冷凍室吐出風路24は、冷凍室用ダンパ27を通過後に、折り返し部43において360°方向転換し、下方に向きをかえて冷凍室3方向に向かう。折り返し部43で方向転換した後に、冷凍室吐出風路24は、送風機12から分配壁17までの風路の奥側を通り、その間、風路は立体交差部44において立体交差する。立体交差部44を通過後に、冷凍室吐出風路24は冷却器11と庫内の間を通り、冷凍室吹出し口30に通じる。この冷却器11と庫内との間を通る冷凍室吐出風路24は、冷却器室10との間に断熱材を介在せず、プラスチック材であるベルマウス45のみを用いて隔壁を構成する。また、この部分の庫内側も同じく断熱材でなくプラスチック材であるファングリル46で構成する。
As shown in FIG. 4, the damper 27 (28, 29) is held by being surrounded by a heat insulating member constituting the air passage, and the inner side of the damper 27 (28, 29) is insulated by the front heat insulating material 41. The back side is held by the back side heat insulating material 42.
The freezer compartment damper 27 in the freezer compartment discharge air passage 24 connected to the freezer compartment 3 is located above the shaft 18 of the blower 12. The freezer compartment discharge air passage 24 extending upward once changes the direction of 360 ° at the turn-up portion 43 after passing through the freezer compartment damper 27 and turns downward to the freezer compartment 3 direction. After the direction is changed at the turn-back portion 43, the freezer discharge air passage 24 passes through the back side of the air passage from the blower 12 to the distribution wall 17, and the air passage intersects at the three-dimensional intersection 44. After passing through the three-dimensional intersection 44, the freezer compartment discharge air passage 24 passes between the cooler 11 and the inside of the refrigerator and leads to the freezer compartment outlet 30. The freezer compartment discharge air passage 24 passing between the cooler 11 and the inside of the refrigerator does not include a heat insulating material between the cooler compartment 10 and forms a partition using only a bell mouth 45 which is a plastic material. . Further, the inside of this portion is also constituted by a fan grill 46 which is not a heat insulating material but a plastic material.

冷凍室吹出し口30は複数あり、冷凍室上吹出し口30a、冷凍室中吹出し口30b、及び冷凍室下吹出し口30cの3つで構成され、図示しないがそれぞれ独立した食品収納ケースの奥上方に位置している。この食品収納用ケースは扉と連動せず、各食品収納ケースは独立して動作することができる。また、製氷室吐出風路25は、製氷室用ダンパ28よりも上方に位置する製氷室吹出し口31に通じる。さらに、冷蔵室吐出風路26は送風機12から上方に向かう風路で、冷蔵室用ダンパ29を通過後にさらに上昇し、冷蔵室2に通じる。なお、冷凍室吐出風路24、製氷室吐出風路25及び冷蔵室吐出風路26は、一時的に並走する。   There are a plurality of freezer compartment outlets 30, which are composed of a freezer compartment upper outlet 30 a, a freezer compartment outlet 30 b, and a freezer compartment outlet 30 c. positioned. This food storage case does not interlock with the door, and each food storage case can operate independently. Further, the ice making chamber discharge air passage 25 leads to an ice making chamber outlet 31 positioned above the ice making damper 28. Further, the refrigerating room discharge air passage 26 is an air passage directed upward from the blower 12 and further rises after passing through the refrigerating compartment damper 29 and communicates with the refrigerating compartment 2. In addition, the freezer compartment discharge air path 24, the ice making room discharge air path 25, and the refrigerator compartment discharge air path 26 temporarily run in parallel.

冷凍室3から冷却器室10には冷凍室戻り風路48が、また製氷室8から冷却器室10には製氷室戻り風路49が通じており、冷蔵室2から冷却器室10には冷蔵室戻り風路50が通じている。冷凍室戻り風路48は、冷凍室3の最下段ケースの上側端面より下に位置する冷凍室戻り風路口から、上方に位置する冷却器室10に戻る。また、製氷室戻り風路49は、製氷室8の奥壁51及び製氷室8の底面51aの製氷室戻り風路口から下方向に集められ、冷凍室3と冷却器室10の間を通り、冷却器室10の下方に通じる。この製氷室戻り風路49が冷凍室3と冷却器室10の間を通る部分では、冷却器室10側には断熱材とプラスチック材であるベルマウス45で仕切られ、冷凍室10側は断熱材でなくプラスチック材であるファングリル46で仕切られている。   A freezer compartment return air passage 48 communicates from the freezer compartment 3 to the cooler compartment 10, and an ice making compartment return air passage 49 communicates from the ice making compartment 8 to the cooler compartment 10. The refrigerator compartment return air passage 50 leads. The freezer compartment return air passage 48 returns to the cooler compartment 10 located above from the freezer compartment return air passage opening located below the upper end face of the lowermost case of the freezer compartment 3. The ice making chamber return air passage 49 is gathered downward from the ice making chamber return air passage opening on the back wall 51 of the ice making chamber 8 and the bottom surface 51a of the ice making chamber 8, and passes between the freezer compartment 3 and the cooler compartment 10, It leads to the lower part of the cooler chamber 10. In a portion where the ice making chamber return air passage 49 passes between the freezer compartment 3 and the cooler chamber 10, the cooler chamber 10 side is partitioned by a bell mouth 45 which is a heat insulating material and a plastic material, and the freezer compartment 10 side is insulated. It is partitioned by a fan grill 46 which is not a material but a plastic material.

冷蔵室戻り風路50は冷蔵室2から下方に向かい、冷蔵室吐出風路26の庫内側を通り、冷却器室10と野菜室4の間を通って、冷却器室10の下方に戻る。冷蔵室吐出風路50の庫内側を通る部分では、冷蔵室吐出風路26と冷蔵室戻り風路50との間は断熱壁52によって、また冷蔵室戻り風路50と庫内側には断熱壁52によって構成されている。冷蔵室戻り風路50が冷却器室10と野菜室4との間を通る部分では、冷却器室10側は断熱壁、野菜室4側はプラスチック製の野菜室風路壁53によって構成されている。この野菜室風路壁53は野菜室奥壁54に取付けられ、取り外し自在である。野菜室奥壁54は、ファングリル46にて構成されている。野菜室風路壁53には風路穴55があけられ、野菜室奥壁53の上方には風路穴56があけられ、野菜室奥壁53の下方には風路穴57があけられている。風路穴55の面積は、風路穴56や風路穴57の面積とは穴の面積が異なり、風路穴56及び風路穴57が風路穴55よりも広くなっている。送風機12の下方に位置する閉塞壁16の最下部にから冷凍室吐出風路24には、水抜き風路58が通じており、水抜き風路58内には脱臭ユニット59が配置され、この脱臭ユニット59は冷凍室3と野菜室4を仕切る仕切り壁の奥側、ほぼ投影部に位置する。   The refrigerating room return air path 50 is directed downward from the refrigerating room 2, passes through the inside of the refrigerating room discharge air path 26, passes between the cooler room 10 and the vegetable room 4, and returns to the lower side of the cooler room 10. In the part passing through the inside of the refrigerator compartment discharge air passage 50, a heat insulating wall 52 is provided between the refrigerator compartment discharge air passage 26 and the refrigerator compartment return air passage 50, and a heat insulation wall is provided between the refrigerator compartment return air passage 50 and the inside of the refrigerator. 52. In the portion where the refrigerator compartment return air passage 50 passes between the cooler compartment 10 and the vegetable compartment 4, the cooler compartment 10 side is constituted by a heat insulating wall, and the vegetable compartment 4 side is constituted by a plastic vegetable compartment air passage wall 53. Yes. The vegetable room air passage wall 53 is attached to the vegetable room inner wall 54 and is detachable. The vegetable room inner wall 54 is configured by a fan grill 46. An air passage hole 55 is made in the vegetable room air passage wall 53, an air passage hole 56 is made above the vegetable room inner wall 53, and an air passage hole 57 is made below the vegetable room inner wall 53. Yes. The area of the air passage hole 55 is different from that of the air passage hole 56 and the air passage hole 57, and the air passage hole 56 and the air passage hole 57 are wider than the air passage hole 55. A drainage air passage 58 communicates with the freezing chamber discharge air passage 24 from the lowermost portion of the blocking wall 16 located below the blower 12, and a deodorizing unit 59 is disposed in the drain air passage 58. The deodorizing unit 59 is located on the rear side of the partition wall that separates the freezer compartment 3 and the vegetable compartment 4 from the projection portion.

次に動作について説明する。上記のように構成した冷蔵庫1においては、冷却器室10によって冷却された冷気が、送風機12によって冷却器室10から吐出される。吐出された冷気は閉塞壁16によって上方向に集められ、分配壁17に向かう。分配壁17によって、冷凍室吐出風路24、製氷室吐出風路25、及び冷蔵室吐出風路26に分けられる。
冷凍室吐出風路24に流れ込んだ冷気は冷凍室用ダンパ27を通過し、折り返し部43において360°方向を変えて下方向に向かい、立体交差部44を通って冷却器室10の手前に向かい、各冷凍室吹出し口30から冷凍室3に吐出する。冷凍室3の食品収納ケース内の食品を冷却後に、冷気は冷凍室戻り口から冷凍室戻り風路48に流入し、冷却器室10の下方に戻り、再び冷却器11により冷却されるサイクルを繰り返す。冷凍室用ダンパ27のバッフル35が閉時には、冷凍室吐出風路24に冷気は流れない。
Next, the operation will be described. In the refrigerator 1 configured as described above, the cold air cooled by the cooler chamber 10 is discharged from the cooler chamber 10 by the blower 12. The discharged cold air is collected upward by the blocking wall 16 and travels toward the distribution wall 17. The distribution wall 17 divides the freezer compartment discharge air passage 24, the ice making room discharge air passage 25, and the refrigerator compartment discharge air passage 26.
The cold air that has flowed into the freezer discharge air passage 24 passes through the freezer damper 27, changes the direction of 360 ° downward at the turn-back portion 43, goes downward, passes through the three-dimensional intersection 44, and towards the cooler chamber 10. Then, the refrigerant is discharged from each freezer compartment outlet 30 to the freezer compartment 3. After the food in the food storage case of the freezer compartment 3 is cooled, the cold air flows into the freezer return air passage 48 from the freezer return port, returns to the lower side of the cooler chamber 10, and is cooled again by the cooler 11. repeat. When the baffle 35 of the freezer compartment damper 27 is closed, no cool air flows through the freezer compartment discharge air passage 24.

また、冷蔵室吐出風路26に流入した冷気は、冷蔵室用ダンパ29を通過し、冷蔵室2を冷却する。冷蔵室2を冷却後に冷気は冷蔵室戻り風路50に戻り、野菜室4の背面の野菜室風路壁53内を流れ、冷却器室10に戻り、再び冷却される。冷蔵室用ダンパ29が閉時に、冷気は冷蔵室吐出風路26を流れない。   Further, the cold air that has flowed into the refrigerating room discharge air passage 26 passes through the refrigerating room damper 29 and cools the refrigerating room 2. After cooling the refrigerator compartment 2, the cold air returns to the refrigerator compartment return air passage 50, flows through the vegetable compartment air passage wall 53 on the back of the vegetable compartment 4, returns to the cooler compartment 10, and is cooled again. When the refrigerator compartment damper 29 is closed, the cold air does not flow through the refrigerator compartment discharge air passage 26.

さらに、製氷室吐出風路25に流入した冷気は、製氷室用ダンパ28を通り、製氷室吹出し口31から製氷室8に吐出され、製氷室8を冷却する。製氷室8を冷却後に、冷気は製氷室戻り風路49から冷却器室10を通って冷却器室10の下方に戻り、再び冷却される。製氷室用ダンパ28は、閉時に冷気は製氷室吐出風路25を流れない。
上記の場合において、送風機12の軸18から閉塞壁16までの距離lに対し送風機12の軸18から分配壁17までの距離mの差を大きくすることにより、分配壁17で分けられる面積で各室への風量バランスをとることが容易となる。この距離を1.2倍以上とすることで、3方向以上の風路への分配が容易となる。
また、ダンパ27(28,29)が冷却器11の手前にないため、駆動部34や保持する部分の部材がなく、冷却器11の手前を風路として活用することができる。
Further, the cold air flowing into the ice making chamber discharge air passage 25 passes through the ice making chamber damper 28 and is discharged from the ice making chamber outlet 31 to the ice making chamber 8 to cool the ice making chamber 8. After cooling the ice making chamber 8, the cool air returns from the ice making chamber return air passage 49 through the cooler chamber 10 to the lower side of the cooler chamber 10 and is cooled again. When the ice making chamber damper 28 is closed, cold air does not flow through the ice making chamber discharge air passage 25.
In the above case, by increasing the difference of the distance m from the shaft 18 of the blower 12 to the distribution wall 17 with respect to the distance l from the shaft 18 of the blower 12 to each of the blocking walls 16, It becomes easy to balance the air volume to the room. By making this distance 1.2 times or more, distribution to the air passages in three or more directions is facilitated.
Further, since the damper 27 (28, 29) is not in front of the cooler 11, there is no drive part 34 or a member to be held, and the front of the cooler 11 can be used as an air path.

図9は、冷凍室用ダンパ27を直立させて配置した場合の冷蔵庫1の要部の断面図である。冷凍室用ダンパ27は直立し、その駆動部34が上方に位置しており、軸36(図6参照)が下方向に位置している。そして、冷凍室吐出風路24に流入した冷気は、冷凍室用ダンパ27により風量がコントロールされる。
冷気を遮断すると、バッフル35には温度差が生じて着霜や着露することがある。この霜や露が昇華する前に滴下した場合、軸36をつたって駆動部34の内部に浸入する恐れがあるが、軸36を下方とし駆動部34を上方としたので、駆動部34内部の氷結を防止することができる。上記では冷凍室用ダンパ27を直立した場合を示したが、滴下を考慮して3°以上の傾けたほうが好ましい。
FIG. 9 is a cross-sectional view of a main part of the refrigerator 1 when the freezer compartment damper 27 is arranged upright. The freezer damper 27 stands upright, the drive unit 34 is positioned upward, and the shaft 36 (see FIG. 6) is positioned downward. The air volume of the cold air flowing into the freezer discharge air passage 24 is controlled by the freezer damper 27.
When the cool air is cut off, a temperature difference occurs in the baffle 35, and frost or dew condensation may occur. If the frost or dew drops before sublimation, the shaft 36 may be connected to enter the drive unit 34, but the shaft 36 is set downward and the drive unit 34 is set upward. Freezing can be prevented. Although the case where the freezer compartment damper 27 is standing upright has been described above, it is preferable to incline it by 3 ° or more in consideration of dripping.

なお、駆動部34を下方としてもよく、この場合には、図10に示すように、軸36に水きりリング61を設けると、駆動部34の内部への水滴の浸入による駆動部34の氷結を防止することができる。
冷凍用ダンパ27(28,29)の着霜や着露は、除霜用ヒータ13による冷却器11の除霜時に湿気が上昇する場合にも生じる。また、冷凍室扉6など扉の閉め忘れなどにより、冷蔵庫1に侵入した高温多湿な暖気による場合もある。
冷凍用ダンパ27(28,29)の配置に斜度を持たせることで、さらにダンパ、送風機12などの配置に自由度を持たせることが出来る。
In this case, as shown in FIG. 10, when a drain ring 61 is provided on the shaft 36, freezing of the drive unit 34 due to water droplets entering the drive unit 34 is prevented. Can be prevented.
The frost and dew on the freezing damper 27 (28, 29) also occur when the humidity rises when the cooler 11 is defrosted by the defrost heater 13. Moreover, it may be due to hot and humid warm air that has entered the refrigerator 1 due to forgetting to close the door such as the freezer compartment door 6.
By providing the refrigeration dampers 27 (28, 29) with an inclination, the arrangement of the dampers, the blower 12 and the like can be further given a degree of freedom.

上記のように、庫内に侵入した湿気や除霜時の湿気が送風機12の前面壁や風路内に付着し、滴下し、閉塞壁部分の最下部に集まっても、水抜き風路58によって、閉塞壁部分の着霜による送風機12の停止などの機能障害を防止することができる。また、冷凍用ダンパ27(28,29)が動作出来ない異常状態に陥った場合でも、水抜き風路58により冷凍室3内への冷気供給が出来、食品が溶けてしまうといった状態を軽減することが出来る。実施例では、冷凍室3のコントロールは冷却用ダンパ27(28,29)で行なうため、各風路は縦20mm、横50mm以内としている。   As described above, even if moisture that has entered the cabinet or moisture during defrosting adheres to the front wall or the air passage of the blower 12 and drops and collects at the lowermost portion of the closed wall portion, the drainage air passage 58 Thus, it is possible to prevent functional troubles such as stoppage of the blower 12 due to frost formation on the closed wall portion. Further, even when the freezing damper 27 (28, 29) is in an abnormal state where it cannot be operated, it is possible to supply cold air into the freezer compartment 3 by the drainage air passage 58 and reduce the state where the food is melted. I can do it. In the embodiment, since the freezer compartment 3 is controlled by the cooling dampers 27 (28, 29), each air passage is within 20 mm in length and 50 mm in width.

上記のように構成した冷蔵庫によれば、庫内への突出が少なく、収納空間を広くすることができる。また、冷凍室3への圧力損失が少なく、冷凍室3を十分に冷却する風量を得ることができて消費電力量を低減し、安価に実現することができる。さらに、野菜室4への風量をコントロールすることができるので野菜室4の温度を変更することができ、また、野菜室4の湿度をコントロールすることができる。さらに、冷蔵室2から戻り風路48,49,50を通って落下する食品粉や粒など異物が冷却器室10に侵入することがなく、取り外しによって清掃することができる。さらに、戻り風路48,49,50が冷却器11の手前にあるため、冷却器11のサイズを幅方向で大きくすることができる。   According to the refrigerator comprised as mentioned above, there are few protrusions in a store | warehouse | chamber and storage space can be expanded. Moreover, there is little pressure loss to the freezer compartment 3, the air volume which fully cools the freezer compartment 3 can be obtained, electric power consumption can be reduced, and it can implement | achieve cheaply. Furthermore, since the air volume to the vegetable compartment 4 can be controlled, the temperature of the vegetable compartment 4 can be changed, and the humidity of the vegetable compartment 4 can be controlled. Further, foreign matters such as food powder and grains falling from the refrigerator compartment 2 through the return air passages 48, 49 and 50 do not enter the cooler compartment 10 and can be cleaned by removal. Furthermore, since the return air passages 48, 49, 50 are in front of the cooler 11, the size of the cooler 11 can be increased in the width direction.

本発明の一実施の形態に係る冷蔵庫の斜視図である。It is a perspective view of the refrigerator which concerns on one embodiment of this invention. 本発明の一実施の形態に係る他の冷蔵庫の斜視図である。It is a perspective view of the other refrigerator which concerns on one embodiment of this invention. 図1のA−A矢視断面図である。It is AA arrow sectional drawing of FIG. 図1のB−B矢視断面図である。It is BB arrow sectional drawing of FIG. 図1のC−C矢視断面図である。It is CC sectional view taken on the line of FIG. 図1の冷蔵庫のダンパを示す斜視図である。It is a perspective view which shows the damper of the refrigerator of FIG. 図6のD部の拡大図である。It is an enlarged view of the D section of FIG. 図6の縦断面図である。It is a longitudinal cross-sectional view of FIG. 図1の他の形態のA−A矢視断面図である。It is AA arrow sectional drawing of the other form of FIG. 図9の冷蔵庫のダンパの要部の拡大図である。It is an enlarged view of the principal part of the damper of the refrigerator of FIG.

符号の説明Explanation of symbols

1 冷蔵庫、2 冷蔵室、3 冷凍室、4 野菜室、8 製氷室、10 冷却器室、11 冷却器、12 送風機、15 前面壁、16 閉塞壁、17 分配壁、18 軸、24 冷凍室吐出風路、25 製氷室吐出風路、26 冷蔵室吐出風路、27 冷凍室用ダンパ、28 製氷室用ダンパ、29 冷蔵室用ダンパ、30 冷凍室吹出し口、31 製氷室吹出し口、32 冷蔵室吹出し口、33 ダンパ、34 駆動部、35 バッフル、38 フレーム、41 手前側断熱材、42 奥側断熱材、43 折り返し部、44 立体交差部、48 冷凍室戻り風路、49 製氷室戻り風路、50 冷蔵室戻り風路、52 断熱壁、53 野菜室風路壁、54 野菜室奥壁、58 水抜き風路、59 脱臭ユニット、61 水切りリング。
DESCRIPTION OF SYMBOLS 1 Refrigerator, 2 Refrigeration room, 3 Freezing room, 4 Vegetable room, 8 Ice making room, 10 Cooler room, 11 Cooler, 12 Blower, 15 Front wall, 16 Closure wall, 17 Distribution wall, 18 axis, 24 Freezer discharge Air path, 25 Ice making room discharge air path, 26 Cold room discharge air path, 27 Freezer room damper, 28 Ice making room damper, 29 Cold room damper, 30 Freezer room outlet, 31 Ice making room outlet, 32 Cold room Air outlet, 33 damper, 34 drive unit, 35 baffle, 38 frame, 41 front side heat insulating material, 42 back side heat insulating material, 43 folded portion, 44 three-dimensional intersection, 48 freezer compartment return air passage, 49 ice making room return air passage , 50 Refrigeration room return air channel, 52 heat insulation wall, 53 vegetable room air channel wall, 54 vegetable room inner wall, 58 drainage air channel, 59 deodorizing unit, 61 draining ring.

Claims (7)

複数の貯蔵室を有し、少なくとも最上段に冷蔵室、最下段に冷凍室を配設し、前記冷凍室の奥側かつ上方に冷却器と送風機を配する冷却器室を配置し、前記冷却器室と前記冷凍室を連通する冷却用風路を設け、前記冷凍室からの戻り風路は前記冷却器室の手前下方から流入する冷蔵庫であって、
前記送風機の下方を閉塞した閉塞壁を設けると共に、前記冷却用風路に風量を調整するダンパを設け、
前記ダンパは、前記送風機の軸より上方に配設され、
前記冷凍室に向かう冷却用風路が、前記ダンパに向かう上昇風路と、前記上昇風路の奥側に位置して折り返し部を通過後下方に向かう下降風路とを有し、前記送風機の側方近傍に立体交差部を設け、前記奥側の下降風路が前記立体交差部より下方において前記冷却器の前側に位置し、さらに、前記閉塞壁の最下部に庫内に通じる水抜き風路を設けたことを特徴とする冷蔵庫。
A plurality of storage chambers, at least a refrigerator compartment at the uppermost stage, a freezer compartment at the lowermost stage, a cooler room in which a cooler and a blower are arranged at the back and above the freezer compartment, and the cooling the cooling air passage which communicates the freezing chamber and the vessel chamber provided, the return air passage from the previous SL freezer compartment a refrigerator flowing from the front lower side of the cooler chamber,
While providing a closed wall that closes the lower side of the blower, provided a damper for adjusting the air volume in the cooling air passage,
The damper is disposed above the shaft of the blower,
The cooling air passage toward the freezer compartment has an ascending air passage toward the damper, and a descending air passage located on the back side of the ascending air passage and passing through the turn-up portion and then going downward. A three-dimensional intersection is provided in the vicinity of the side, and the downdraft on the back side is located on the front side of the cooler below the three-dimensional intersection, and further, the drainage wind leads to the interior at the bottom of the closed wall A refrigerator characterized by providing a road .
記送風機の軸から前記閉塞壁までの距離に対し、前記送風機の軸から前記ダンパまでの距離を1.2倍以上としたことを特徴とする請求項1記載の冷蔵庫。 To distance from the axis of the front Symbol blower to said closing wall, refrigerator according to claim 1, wherein a from the axis of the blower and the distance 1.2 times or more in the Dan Pama. 記水抜き風路内に脱臭装置を配置したことを特徴とする請求項1または2に記載の冷蔵庫。 The refrigerator according to claim 1 or 2, characterized in that a deodorizing device disposed in front Symbol draining air passage. 前記複数の貯蔵室の最下段を縦に仕切り、一方を冷凍室、他方をその他の温度帯の貯蔵室としたことを特徴とする請求項1〜3のいずれかに記載の冷蔵庫。The refrigerator according to any one of claims 1 to 3, wherein the lowermost stage of the plurality of storage rooms is vertically partitioned, one being a freezing room and the other being a storage room in another temperature zone. 前記冷凍室を仕切る仕切りの奥側投影部に脱臭ユニットを配置したことを特徴とする請求項1〜4のいずれかに記載の冷蔵庫。The refrigerator in any one of Claims 1-4 which has arrange | positioned the deodorizing unit in the back | inner side projection part of the partition which partitions off the said freezer compartment. 前記冷凍室からの戻り風路を取付け取り外し自在とし、取付け取り外しにより風路の面積が変化して風量をコントロールするようにしたことを特徴とする請求項1〜5のいずれかに記載の冷蔵庫。The refrigerator according to any one of claims 1 to 5, wherein a return air passage from the freezer compartment is attachable and detachable, and the area of the air passage is changed by attachment and removal to control the air volume. 前記ダンパは風量をコントロールする開閉自在のバッフルを有し、前記ダンパを傾けて設置して前記バッフルの軸に斜度を持たせたことを特徴とする請求項1〜6のいずれかに記載の冷蔵庫。The damper according to any one of claims 1 to 6, wherein the damper has an openable / closable baffle for controlling the air volume, and the damper is installed at an inclination to give an inclination to the shaft of the baffle. refrigerator.
JP2004320448A 2004-11-04 2004-11-04 refrigerator Expired - Fee Related JP4281003B2 (en)

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JP4564994B2 (en) * 2007-09-07 2010-10-20 日立アプライアンス株式会社 refrigerator
EP3885683A4 (en) 2019-01-09 2022-02-09 Hefei Midea Refrigerator Co., Ltd. Refrigerator and refrigeration control method and device therefor
KR20200095887A (en) * 2019-02-01 2020-08-11 삼성전자주식회사 Refrigerator
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