EP1199531B1 - Kaltluftzufuhrvorrichtung für einen Kühlschrank - Google Patents

Kaltluftzufuhrvorrichtung für einen Kühlschrank Download PDF

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Publication number
EP1199531B1
EP1199531B1 EP20000125785 EP00125785A EP1199531B1 EP 1199531 B1 EP1199531 B1 EP 1199531B1 EP 20000125785 EP20000125785 EP 20000125785 EP 00125785 A EP00125785 A EP 00125785A EP 1199531 B1 EP1199531 B1 EP 1199531B1
Authority
EP
European Patent Office
Prior art keywords
passage
cool air
baffles
compartment
refrigerating compartment
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.)
Expired - Lifetime
Application number
EP20000125785
Other languages
English (en)
French (fr)
Other versions
EP1199531A1 (de
Inventor
Lyu c/o Daewoo Electronics Co. Ltd Gang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WiniaDaewoo Co Ltd
Original Assignee
Daewoo Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR2020000029040U external-priority patent/KR200218485Y1/ko
Priority claimed from KR2020000029041U external-priority patent/KR200218487Y1/ko
Application filed by Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Publication of EP1199531A1 publication Critical patent/EP1199531A1/de
Application granted granted Critical
Publication of EP1199531B1 publication Critical patent/EP1199531B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

  • the present invention relates to a cool air supplying device for refrigerator; and, more particularly, to a cool air supplying device for uniformly supplying cool air to the refrigerating compartment of an air circulation type refrigerator.
  • a conventional refrigerator comprises a cabinet having a freezing compartment and a refrigerating compartment, and a refrigerating system for providing cool air.
  • the refrigerating system includes a compressor, a condenser, a pressure reducing device and an evaporator.
  • a refrigerant circulates in the refrigerating system to thereby provide cool air.
  • the refrigerating system is configured to supply cool air to the freezing compartment and the refrigerating compartment via a cool air supplying device and an example of such a cool air supplying device is shown in Figs. 1 and 2.
  • a cool air supplying device is shown in Figs. 1 and 2.
  • an air-circulation type refrigerator comprises a cabinet 1 which includes a freezing compartment 3 and a refrigerating compartment 5. Further, a compressor (not shown) is arranged in the lower portion of the cabinet 1 and an evaporator 7 is installed in the upper portion of the cabinet 1 and behind the freezing compartment 3.
  • the cool air supplying device includes a fan 10 installed above the evaporator 7 and a duct 20 disposed in front of the fan 10. Cool air generated by the evaporator 7 is blown by the fan 10 into the freezing compartment 3 and also into the refrigerating compartment 5 through the duct 20.
  • the duct 20 has an opening 22 through which the cool air enters into the duct 20, an intermediate chamber 24 for temporarily storing the cool air and a passage 25 through which the intermediate chamber 24 communicates with the refrigerating compartment 5.
  • the intermediate chamber 24 directly communicates with the freezing compartment 3 via a louver 9 such that the cool air entered through the opening 22 can be directly supplied into the freezing compartment 3.
  • the passage 25 has a main passage 25a and two branch passages 25b divided from the main passage 25a. The cool air is delivered to the refrigerating compartment 5 through the branch passages 25b along both sides of the refrigerating compartment 5.
  • a damper 30 is provided for controlling the amount of the cool air flowing through the main passage 25a.
  • the damper 30 has a sliding plate 31 movable in a direction traverse to the main passage 25a, a baffle 32 formed on the sliding plate 31 and a knob 33.
  • the baffle 32 is configured to be arranged in the main passage 25a such that a cross-sectional area of the main passage 25a can be changed by moving the sliding plate 31.
  • the movement of the sliding plate 31 is controlled by using the knob 33 protruded into the freezing compartment 3. In such a configuration, one can determine the amount of the cool air, which flows through the main passage 25a to be supplied into the refrigerating compartment, by changing the cross-sectional area of the main passage 25a.
  • Cool air generated by the evaporator 7 is delivered into the intermediate chamber 24 by the fan 10. Then, partial amount of the cool air is supplied into the freezing compartment 3 through a louver 9 and the remaining part of the cool air is supplied into the refrigerating compartment 5 through the main passage 25a and the branch passages 25b. The amount of the cool air supplied to the refrigerating compartment 5 through the main passage 25a is controlled by the damper 30.
  • the supplement of the cool air to the refrigerating compartment 5 is not performed uniformly. Since the baffle 32 of the damper 30 is extended from a side of the main passage 25a towards the other side thereof, the flow of the cool air is biased from the center of the main passage 25a, thereby resulting in an unbalanced flow of the cool air such that the amount of the cool air flowing through one of the branch passage 25b becomes greater than that flowing through the other. Subsequently, the supplement of the cool air into the refrigerating compartment 5 is not performed uniformly. This results in a non-uniformity in local temperature in the refrigerating compartment 5 and the foods stored therein can be over-chilled or under-chilled. This phenomenon becomes more severe when the volume of the refrigerating compartment 5 is large.
  • USP-5,209,073 discloses a cooling device having a refrigeration chamber and a freezer chamber wherein the freezer chamber and the refrigeration chamber are connected with refrigerated pressurised air by air flow passageways. The air flow is controlled by motorised valves which are operated by temperature sensors.
  • JP 2000 205733 A discloses a multi compartment refrigerator, wherein the refrigerating compartments are interconnected through a chill passage wherein the distribution of the chilled air is controlled by means of an air volume regulator disposed in one chill passage.
  • an object of the present invention to provide a simple cool air supplying device for refrigerator wherein the supplement of cool air to the refrigerating compartment is performed uniformly to thereby substantially remove the non-uniformity in the local temperature therein.
  • a cool air supplying device for refrigerator which comprises an evaporator, a fan, a duct system including a first passage and a second passage, the first passage and the second passage being separated from each other, and a damper arranged in the first passage and the second passage for controlling the amount of the cold air flowing through the passages, wherein the damper is arranged slidably in a direction traverse to the passages and includes a first set of baffles and a second set of baffles for controlling cross-sectional areas of the first passage and the second passage, respectively.
  • Fig. 3 illustrates a cool air supplying device in accordance with an embodiment of the present invention and Fig. 4 presents a cross-sectional view along the line IV-IV of Fig. 3.
  • the refrigerator shown in Fig. 3 comprises a cabinet 1 which has a freezing compartment 3 and a refrigerating compartment.
  • a compressor (not shown) is arranged below the cabinet 1 and an evaporator 7 is installed above the cabinet 1 and behind the freezing compartment 3.
  • the cool air supplying device shown in Fig. 3 includes a fan 10 installed above the evaporator 7 and a duct 20 disposed in front of the fan 10. Cool air generated by the evaporator 7 is blown by the fan 10 into the freezing compartment 3 and the refrigerating compartment 5 through the duct 20.
  • the duct 20 has an opening 22 through which the cool air enters into the duct 20, an intermediate chamber 24 for temporarily storing the cool air and a first passage 27a and a second passage 27b through which the intermediate chamber 24 communicates with the refrigerating compartment 5.
  • the intermediate chamber 24 directly communicates with the freezing compartment 3 such that the cool air entered through the opening 22 can be directly supplied into the freezing compartment 3.
  • Each side of the intermediate chamber 24 and the refrigerating compartment 5 communicates through the first passage 27a and the second passage 27b, respectively.
  • these passages 27a, 27b are arranged substantially symmetrically with respect to the vertical center line of the intermediate chamber 24 to thereby uniformly supply the cool air from the intermediate chamber 24 to both sides of the refrigerating compartment 5.
  • a damper 30 is provided in the passages 27a, 27b for controlling the amount of the cool air flowing therethrough.
  • the damper 30 has a sliding plate 35 movable in a direction traverse to the passages 27a, 27b, a first set of baffles 36, a second set of baffles 37, both sets being formed on one side of the sliding plate 35 and a knob 38 formed on the other side thereof.
  • the first set of baffles 36 has a main baffle 36a and an auxiliary baffle 36b and is disposed in the first passage 27a.
  • the second set of baffles 37 has a main baffle 37a and an auxiliary baffle 37b and is disposed in the second passage 27b.
  • Main baffles 36a, 37a have widths as large as those of respective passages 27a, 27b to thereby almost completely block the cool air flowing through the respective passages.
  • auxiliary baffles 36b, 37b have widths smaller than those of the passages to thereby partially block the cool air flowing through the respective passages.
  • Each of the passages 27a, 27b can have a various cross-sectional area by using the main baffles 36a, 37a and the auxiliary baffles 36b, 37b in combination. That is, the cross-sectional area of the passage can be adjusted by moving the sliding plate 35, thereby allowing a desired amount of cool air to pass through the passage.
  • the knob 38 is configured to protrude through the louver 9 into the freezing compartment 3 such that one can have access from the freezing compartment 3 to the knob 38 to move the sliding plate 35.
  • the knob 38 may be designed to have three operating positions such as “half" A, “strong” B and “very weak” C, as shown in Fig. 4. Further, the knob may have another operating position such as "weak” located between the positions B and C. Subsequently, the amount of the cool air flowing through the passage can be controlled more accurately.
  • the first set of baffles 36 and the second set of baffles may have a configuration substantially identical to each other and thereby the amount of cool air passing through one passage may substantially be same with that passing through the other. Otherwise, they may have a configuration different from each other and thereby the amount of cool air passing through one passage may be different from that passing through the other.
  • cool air is generated by the evaporator 7 and blown into the intermediate chamber 24 of the duct 20 by the fan 10. Partial amount of the cool air which enters into the intermediate chamber 24 is supplied into the freezing compartment 3 through the louver 9 and remaining part of the cool air is supplied into the refrigerating compartment 5 through passages 27a, 27b. The amount of cool air passing through each of the passages 27a, 27b is controlled independently by the damper 30. Also, the supplement of the cool air to the refrigerating compartment 5 is performed uniformly.
  • the supplement of the cool air into the refrigerating compartment can be performed uniformly by using two separated passages extending from the intermediate chamber to the refrigerating compartment.
  • the amount of the cool air supplied into the refrigerating compartment can be accurately controlled by adjusting the cross-sectional area of each passage by a set of baffles.

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  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Claims (4)

  1. Kühlluftzufuhrvorrichtung für einen Kühlschrank (1), aufweisend:
    einen Verdampfer (7) zum Erzeugen von Kühlluft;
    einen Ventilator (10) zum Einblasen der Kühlluft in ein Gefrierfach (3) und ein Kühlfach (5) eines Kühlschranks (1);
    einen Kanal (20) zum Leiten der Kühlluft in das Tiefkühlfach (3) und das Kühlfach (5), wobei der Kanal zum Führen der Kühlluft in das Kühlfach (5) einen ersten und zweiten Abschnitt (27a, 27b) aufweist, die getrennt voneinander angeordnet sind; und
    einen Schieber (30), der im ersten Abschnitt (27a) und im zweiten Abschnitt (27b) angeordnet ist, um die durch jeden Abschnitt fließende Luftmenge zu steuern, dadurch gekennzeichnet, daß
    der Schieber (30) quer zu den Abschnitten (27a, 27b) verschiebbar angeordnet ist und einen ersten Satz Drosselscheiben (36) und einen zweiten Satz Drosselscheiben (37) zum Einstellen der jeweiligen Querschnittsfläche des ersten und zweiten Abschnitts (27a, 27b) aufweist.
  2. Vorrichtung nach Anspruch 1, bei welcher jeder Satz Drosselscheiben (36, 37), eine Hauptdrosselscheibe (36a, 37a) und eine Hilfsdrosselscheibe (36b, 37b) aufweist, wobei die Hauptdrosselscheibe (36a, 37a) in ihrer Breite im wesentlich identisch mit der des entsprechenden Abschnitts (27a, 27b) ist, und die Hilfsdrosselscheibe (36b, 37b) eine Breite aufweist, die kleiner ist als die des entsprechenden Abschnitts (27a, 27b).
  3. Vorrichtung nach Anspruch 1 oder 2, bei welcher der erste Satz Drosselscheiben (36) und der zweite Satz (37) Drosselscheiben gleich zueinander angeordnet sind, wobei die Kühlluftmenge, welche durch den ersten Abschnitt (27a) fließt, im wesentlichen identisch mit der durch den zweiten Abschnitt (27b) fließenden Menge ist.
  4. Vorrichtung nach Anspruch 1 oder 2, bei welcher der erste Satz Drosselscheiben (36) und der zweite Satz Drosselscheiben (37) unterschiedlich konfiguriert sind, wobei die durch den ersten Abschnitt (27a) fließende Kühlluftmenge von der durch den zweiten Abschnitt (27b) fließenden Menge abweicht.
EP20000125785 2000-10-18 2000-11-24 Kaltluftzufuhrvorrichtung für einen Kühlschrank Expired - Lifetime EP1199531B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR2020000029040U KR200218485Y1 (ko) 2000-10-18 2000-10-18 냉장고의 냉기 공급장치
KR2020000029041U KR200218487Y1 (ko) 2000-10-18 2000-10-18 냉장고의 냉기 공급장치
KR2000029040 2000-10-18
KR2000029041 2000-10-18

Publications (2)

Publication Number Publication Date
EP1199531A1 EP1199531A1 (de) 2002-04-24
EP1199531B1 true EP1199531B1 (de) 2005-08-24

Family

ID=26638040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000125785 Expired - Lifetime EP1199531B1 (de) 2000-10-18 2000-11-24 Kaltluftzufuhrvorrichtung für einen Kühlschrank

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EP (1) EP1199531B1 (de)
ES (1) ES2248004T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106152672A (zh) * 2016-06-30 2016-11-23 青岛海尔股份有限公司 一种冰箱恒温间室
CN106196825A (zh) * 2016-06-30 2016-12-07 青岛海尔股份有限公司 一种冰箱恒温间室
CN114061252B (zh) * 2020-07-31 2024-01-09 青岛海尔电冰箱有限公司 风冷冰箱的控制方法与风冷冰箱

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209073A (en) * 1990-11-01 1993-05-11 Fisher & Paykel Limited Cooling device and method with multiple cooled chambers and multiple expansion means
JP3399243B2 (ja) * 1996-08-08 2003-04-21 三菱電機株式会社 冷凍冷蔵庫
KR100254409B1 (ko) * 1997-08-29 2000-05-01 구자홍 냉장고의 집중식 냉기공급장치
JP2000205733A (ja) * 1999-01-19 2000-07-28 Mitsubishi Electric Corp 冷蔵庫

Also Published As

Publication number Publication date
EP1199531A1 (de) 2002-04-24
ES2248004T3 (es) 2006-03-16

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