EP0532870B1 - Refrigeration apparatus, especially domestic refrigerator - Google Patents
Refrigeration apparatus, especially domestic refrigerator Download PDFInfo
- Publication number
- EP0532870B1 EP0532870B1 EP92113066A EP92113066A EP0532870B1 EP 0532870 B1 EP0532870 B1 EP 0532870B1 EP 92113066 A EP92113066 A EP 92113066A EP 92113066 A EP92113066 A EP 92113066A EP 0532870 B1 EP0532870 B1 EP 0532870B1
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- EP
- European Patent Office
- Prior art keywords
- evaporator
- partition
- air
- cooling
- cooling apparatus
- 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
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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
- F25D17/06—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
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- 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 invention relates to a cooling device, in particular a household refrigerator with a cooling space enclosed by a heat-insulated housing and provided on the front side with a door opening, the temperature of which is obtained by forcibly circulating an air flow generated by a blower over an obscurely arranged in the cooling space behind an intermediate wall Evaporator is kept at least approximately constant.
- Such a cooling device is known from GB-A-950 091.
- the aim is to keep the temperature distribution in the individual compartments as constant as possible at the intended level in order to be able to store the usually perishable goods stored there over a long period of time without suffering any loss in quality.
- the invention is therefore based on the object in a cooling device of the type described in more detail to design the air flow through the evaporator behind the partition wall in such a way that without loss of usable space even in a fully loaded one Condition of the device almost the same temperature level can be maintained everywhere.
- the intermediate wall is provided on its side facing the cooling surface of the evaporator with air guide channels which emerge at different altitudes and, due to their different lengths and / or cross sections, each have a different heat exchange of the air flows guided therein on the cooling surface allow the evaporator.
- the air guide channels are laterally delimited by ribs extending between the cooling surface and the side of the intermediate wall facing this, the thickness of which corresponds at least approximately to the distance of the evaporator to the intermediate wall.
- At least three air guide channels starting from the upper center of the intermediate wall and the suction opening of the fan located there extend fan-like downward on the rear wall thereof, the outer ones being deflected upward, approximately in the lower third of the intermediate wall, so that their outlet openings are at the top, while the intermediate air duct extends to the lower edge of the intermediate wall extends.
- the intermediate wall is provided in its upper area with projections which extend forward to the door opening, into which the outlet openings of the air ducts on top open.
- a cooling device 10 designed as a multi-temperature refrigerator has its heat-insulated in the middle section Housing 11 a on the front side with a door 12 lockable cooling compartment 13.
- the door 12 hinged to the side of the door opening on the housing 11 is provided on its inside with protruding storage compartments 14 which are arranged one above the other and serve to hold small-sized items to be refrigerated.
- a flat evaporator 15 in the form of a so-called cold wall evaporator which is arranged in the upper region of the cooling compartment 13 and extending to approximately the lower third of its full height, approximately occupies its full width.
- a niche 16 is arranged in the middle of the cooling compartment 13 - just below its ceiling - into which the drive motor 17 of a fan equipped with a fan wheel 18 is recessed.
- the fan formed from the drive motor 17 and the fan 18 is, like the evaporator 15, covered by an intermediate wall 20 which occupies the full width of the rear wall of the cooling compartment and from the ceiling down to the level of the lower edge of the evaporator 15 extends.
- This intermediate wall 20 is provided on its side facing the cooling surface of the evaporator 15 with air guiding channels 21 and 22, which emerge at different altitudes and, due to their different lengths and cross sections, allow different heat exchange between the air flow guided therein and the cooling surface of the evaporator 15.
- the air channels 21 and 22 are laterally delimited by ribs 23 which run on the rear side of the intermediate wall 20 and the thickness of which is dimensioned such that they distance the evaporator 15 from the rear of the intermediate wall 20 correspond so that they fit tightly with their burr against the rear wall of the heat-insulated housing 11 in the assembled state.
- the air channels 21 and 22 delimited by the ribs 23 extend, starting from a suction opening 25 provided in the upper center of the intermediate wall 20 and surrounded by a collar-like extension 24 enveloping the fan wheel 18, the two lying on the outside Air channels 21 are deflected upwards by a corresponding curvature of the ribs 23 delimiting them in the lower third of the intermediate wall 20, so that their outlet openings 26 lie laterally above, while the air channel 22 in between exits at the lower edge of the intermediate wall 20.
- the intermediate wall 20 is provided in its upper region with projections 27 which extend forwardly in the vicinity of the door opening of the cooling space 13 and which rest on the side walls of the cooling space 13 with angled edges 28. With their angled edges, these lugs 27 form air ducts into which the outlet openings 26 of the outer air ducts 21 open at the top. With the aid of this air duct, the partial air flow circulated by the blower through the outer channels 21 and cooled on the evaporator 13 is guided into the vicinity of the door opening.
- a pull-out drawer 30 which is arranged at a distance from the bottom of the housing 11 and whose dimensions are selected such that a continuous air duct 31 is created on its rear wall and bottom as well as on its front side. which forms a continuation of the air duct 22 emerging at the lower edge of the intermediate wall 20.
- the top opening of the drawer 30 is provided with a cover 32, which has a moisture filter, not shown.
- a support plate 33 supported on the side walls of the cooling compartment 13, is arranged above the cover 32 of the drawer 30, the front edge of which lies above the front edge of the drawer and, like this, is also at a corresponding distance from the inside of the closed one Door 12 runs so that there remains a passage opening, the cross section of which corresponds approximately to that of the air duct 31 guided around the drawer 15.
- the rear edge of the support plate 33 lies at the level of the lower edge of the evaporator 15 or the cover 20.
- the uppermost support plate 34 is located directly below the lower edge of the side lugs 26 on the intermediate wall 20, approximately at the same height as the uppermost storage compartment 14. Its front edge is set back in relation to this, so that when the door 12 is closed, between the outer edge of the storage compartment 14 and the support plate 33, a gap remains which extends almost over the entire width of the cooling space and allows unimpeded circulation of the cooling air.
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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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
Description
Die Erfindung betrifft ein Kühlgerät, insbesondere einen Haushalts-Kühlschrank mit einem von einem wärmeisolierten Gehäuse umschlossenen, an seiner Frontseite mit einer Türöffnung versehenen Kühlraum, dessen Temperatur durch zwangsweises Umwälzen eines von einem Gebläse erzeugten Luftstromes über einen im Kühlraum hinter einer Zwischenwand verdeckt angeordneten, flächenhaften Verdampfer wenigstens annähernd konstant gehalten wird.The invention relates to a cooling device, in particular a household refrigerator with a cooling space enclosed by a heat-insulated housing and provided on the front side with a door opening, the temperature of which is obtained by forcibly circulating an air flow generated by a blower over an obscurely arranged in the cooling space behind an intermediate wall Evaporator is kept at least approximately constant.
Ein derartiges Kühlgerät ist aus der GB-A-950 091 bekannt.Such a cooling device is known from GB-A-950 091.
Bei Haushalts-Kühlschränken der genannten Art ist man bestrebt, die Temperaturverteilung in den einzelnen Fächern möglichst konstant auf dem bestimmungsgemäßen Niveau zu halten, um das dort eingelagerte, meist leicht verderbliche Gut über einen langen Zeitraum lagern zu können, ohne daß es dabei Qualitätseinbußen erleidet.In household refrigerators of the type mentioned, the aim is to keep the temperature distribution in the individual compartments as constant as possible at the intended level in order to be able to store the usually perishable goods stored there over a long period of time without suffering any loss in quality.
Um diese Forderung nach gleichmäßiger Temperaturverteilung zu erfüllen, verwendet man großflächige Verdampfer, die an der Rückwand des Kühlraumes hinter einer Zwischenwand angeordnet sind. Insbesondere bei Kühlgeräten mit verhältnismäßig hohem Kühlraum ist man wegen der sich hier infolge unterschiedlicher Dichte in dessen unteren Bereich ansammelnden kalten Luft gezwungen, diese mit einem Gebläse zwangsweise umzuwälzen. Aber trotz dieser zwangsweisen Umwälzung läßt es sich nicht vermeiden, daß die Lufttemperatur im oberen Türöffnungsbereich des Kühlraumes deutlich höher liegt als in dessen unteren rückwärtigen Bereich. Dies ist insbesondere dann der Fall, wenn der Kühlraum verhältnismäßig hoch und zudem durch in verschiedene Höhenlagen angeordnete horizontale Ablagen unterteilt ist; zudem, wenn diese mit Kühlgut voll beladen sind und die Luftumwälzung behindern.In order to meet this requirement for uniform temperature distribution, large-area evaporators are used, which are arranged on the rear wall of the cooling space behind an intermediate wall. Particularly in the case of cooling devices with a relatively high cooling space, because of the cold air that accumulates here in the lower region due to the different density, one is forced to circulate it with a fan. But despite this forced circulation, it cannot be avoided that the air temperature in the upper door opening area of the refrigerator is significantly higher than in the lower rear area. This is particularly the case when the refrigerator is relatively high and is also divided by horizontal shelves arranged in different heights; in addition, if they are fully loaded with refrigerated goods and hinder air circulation.
Der besonders in diesem Fall trotz aufwendiger Einrichtungen zur Luftumwälzung auftretende Temperaturanstieg im oberen Bereich des Kühlraumes kann dazu führen, daß dort gelagertes Kühlgut vorzeitig unansehnlich wird und verdirbt. Versucht man diesen Nachteil durch stärkeres Abkühlen der umgewälzten Luft zu begegnen, besteht die Gefahr, daß im unteren Abschnitt des Kühlraumes gelagertes Gut durch Gefrieren unbrauchbar wird. Sofern es sich dabei um in Flaschen oder dgl. Gefäße aufbewahrte Flüssigkeiten handelt, können diese durch die beim Einfrieren auftretende Volumenszunahme der Flüssigkeit gesprengt werden.The rise in temperature in the upper region of the cold store, which occurs particularly in this case despite complex devices for air circulation, can lead to the refrigerated goods stored there becoming prematurely unsightly and spoiling. If one tries to counter this disadvantage by cooling the circulating air more intensely, there is a risk that goods stored in the lower section of the cooling space become unusable due to freezing. If these are liquids stored in bottles or the like, they can be blown up by the increase in volume of the liquid which occurs during freezing.
Der Erfindung liegt daher die Aufgabe zugrunde, bei einem Kühlgerät der eingangs näher beschriebenen Art die Luftführung über den hinter der Zwischenwand liegenden Verdampfer so zu gestalten, daß ohne Verlust an Nutzraum auch in vollbeladenem Zustand des Gerätes überall nahezu gleiches Temperaturniveau eingehalten werden kann.The invention is therefore based on the object in a cooling device of the type described in more detail to design the air flow through the evaporator behind the partition wall in such a way that without loss of usable space even in a fully loaded one Condition of the device almost the same temperature level can be maintained everywhere.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Zwischenwand auf ihrer der Kühlfläche des Verdampfers zugekehrten Seite mit Luftführungskanälen versehen ist, die in verschiedenen Höhenlagen austreten und durch ihre unterschiedlichen Längen und/oder Querschnitte jeweils einen unterschiedlichen Wärmetausch der darin geführten Luftströme an der Kühlfläche des Verdampfers gestatten.This object is achieved according to the invention in that the intermediate wall is provided on its side facing the cooling surface of the evaporator with air guide channels which emerge at different altitudes and, due to their different lengths and / or cross sections, each have a different heat exchange of the air flows guided therein on the cooling surface allow the evaporator.
Hierdurch wird es möglich, eine gleichmäßige Lufttemperatur auch bei großvolumigen, in der Höhe mehrfach unterteilten Kühlräumen zu gewährleisten und damit die Lagerbedingungen für das Kühlgut zu verbessern.This makes it possible to ensure a uniform air temperature even in the case of large-volume cold rooms which are divided several times in height, and thus to improve the storage conditions for the refrigerated goods.
Nach einer besonders vorteilhaften Ausgestaltung des Gegenstandes der Erfindung ist vorgesehen, daß die Luftführungskanäle seitlich von sich zwischen der Kühlfläche und der dieser zugekehrten Seite der Zwischenwand erstreckenden Rippen begrenzt sind, deren Stärke wenigstens annähernd dem Abstand des Verdampfers zur Zwischenwand entspricht.According to a particularly advantageous embodiment of the subject matter of the invention, it is provided that the air guide channels are laterally delimited by ribs extending between the cooling surface and the side of the intermediate wall facing this, the thickness of which corresponds at least approximately to the distance of the evaporator to the intermediate wall.
Sorgt man dafür, daß die Rippen mit ihrem Grat eng an der Kühlfläche anliegen, so werden die in den Kanälen geführten Luftströme hinreichend voneinander getrennt.If you make sure that the fins lie close to the cooling surface with their burr, the air flows guided in the ducts are sufficiently separated from one another.
Besonders günstige Verhältnisse lassen sich erzielen, wenn gemäß einer weiteren vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen ist, daß wenigstens drei Luftführungskanäle, ausgehend vom oberen Zentrum der Zwischenwand und der dort gelegenen Ansaugöffnung des Gebläses sich fächerartig auf deren Rückwand nach unten erstrecken, wobei die außenliegenden, etwa im unteren Drittel der Zwischenwand nach oben umgelenkt sind, so daß ihre Austrittsöffnungen oben liegen, während sich der dazwischenliegende Luftkanal bis auf den unteren Rand der Zwischenwand erstreckt.Particularly favorable conditions can be achieved if, according to a further advantageous embodiment of the object of the invention, it is provided that at least three air guide channels, starting from the upper center of the intermediate wall and the suction opening of the fan located there extend fan-like downward on the rear wall thereof, the outer ones being deflected upward, approximately in the lower third of the intermediate wall, so that their outlet openings are at the top, while the intermediate air duct extends to the lower edge of the intermediate wall extends.
Um auch in dem besonders kritischen, türnahen oberen Bereich des Kühlraumes die vorgeschriebene Lagertemperatur exakt einhalten zu können, ist nach einer weiteren vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen, daß die Zwischenwand in ihrem oberen Bereich mit sich zur Türöffnung nach vorn erstreckenden Ansätzen versehen ist, in welche die obenliegenden Austrittsöffnungen der Luftführungskanäle einmünden.In order to be able to exactly maintain the prescribed storage temperature even in the particularly critical upper area of the cold store near the door, according to a further advantageous embodiment of the subject matter of the invention it is provided that the intermediate wall is provided in its upper area with projections which extend forward to the door opening, into which the outlet openings of the air ducts on top open.
Die Erfindung ist anhand der beigefügten Zeichnung in der nachfolgenden Beschreibung erläutert. Es zeigen:
- Fig. 1
- den von einer Tür verschlossenen mittleren Abschnitt eines als Mehrtemperaturen-Kühlschrank ausgebildeten Kühlgerätes, von der Seite gesehen im Schnitt und
- Fig. 2
- den der Fig. 1 entsprechenden mittleren Abschnitt des Kühlgerätes, in der Ansicht von vorne, ohne Tür.
- Fig. 1
- the middle section closed by a door of a refrigerator designed as a multi-temperature refrigerator, seen from the side in section and
- Fig. 2
- 1 corresponding middle section of the refrigerator, in the view from the front, without a door.
Ein als Mehrtemperaturen-Kühlschrank ausgebildetes Kühlgerät 10 weist im mittleren Abschnitt seines wärmeisolierten Gehäuses 11 ein an seiner Frontseite mit einer Tür 12 verschließbares Kühlfach 13 auf. Die seitlich der Türöffnung am Gehäuse 11 angeschlagene Tür 12 ist auf ihrer Innenseite mit dieser gegenüber vorspringenden, übereinander angeordneten Ablagefächern 14 versehen, die zur Aufnahme von kleinformatigem Kühlgut dienen.A
Im Innern des Kühlfaches 13 befindet sich in der Rückwand des wärmeisolierten Gehäuses 11 ein flächenhafter Verdampfer 15 in Form eines sogenannten Coldwall-Verdampfers, welcher im oberen Bereich des Kühl faches 13 angeordnet ist und sich bis etwa auf das untere Drittel seiner vollen Höhe erstreckend, annähernd dessen volle Breite einnimmt. Nahe dem oberen Rand des Verdampfers 15 ist in der Mitte des Kühl faches 13 - dicht unter dessen Decke - eine Nische 16 angeordnet, in welche der Antriebsmotor 17 eines mit einem Lüfterrad 18 ausgestatteten Gebläses versenkt eingebaut ist.Inside the
Das aus dem Antriebsmotor 17 und dem Lüfterrad 18 gebildete Gebläse ist, ebenso wie der Verdampfer 15, von einer Zwischenwand 20 abgedeckt, welche die volle Breite der Rückwand des Kühl faches einnimmt und sich von dessen Decke nach unten bis auf die Höhe der Unterkante des Verdampfers 15 erstreckt. Diese Zwischenwand 20 ist auf ihrer der Kühlfläche des Verdampfers 15 zugekehrten Seite mit Luftführungskanälen 21 bzw. 22 versehen, die in verschiedenen Höhenlagen austreten und durch ihre unterschiedliche Länge und Querschnitte einen unterschiedlichen Wärmetausch zwischen dem darin geführten Luftstrom und der Kühlfläche des Verdampfers 15 gestatten. Die Luftkanäle 21 und 22 sind seitlich von Rippen 23 begrenzt, die auf der Rückseite der Zwischenwand 20 verlaufen und deren Stärke so bemessen ist, daß sie den Abstand des Verdampfers 15 zur Rückseite der Zwischenwand 20 entsprechen, so daß sie im montierten Zustand mit ihrem Grat eng gegen die Rückwand des wärmeisolierten Gehäuses 11 anliegen.The fan formed from the
In dem dargestellten Ausführungsbeispiel erstrecken sich die von den Rippen 23 begrenzten Luftkanäle 21 und 22, ausgehend von einer im oberen Zentrum der Zwischenwand 20 vorgesehenen und von einem das Lüfterrad 18 einhüllenden, kragenartigen Ansatz 24 umgebenen Ansaugöffnung 25 fächerartig nach unten, wobei die beiden außen liegenden Luftkanäle 21 durch entsprechende Krümmung der sie begrenzenden Rippen 23 im unteren Drittel der Zwischenwand 20 nach oben umgelenkt sind, so daß ihre Austrittsöffnungen 26 seitlich oben liegen, während der dazwischenliegende Luftkanal 22 am unteren Rand der Zwischenwand 20 austritt.In the exemplary embodiment shown, the
Die Zwischenwand 20 ist in ihrem oberen Bereich mit sich in die Nähe der Türöffnung des Kühlraumes 13 nach vorn erstreckenden Ansätzen 27 versehen, welche mit abgewinkelten Kanten 28 an den Seitenwänden des Kühlraumes 13 anliegen. Diese Ansätze 27 bilden mit ihren abgewinkelten Kanten 28 Luftführungen, in welche die obenliegenden Austrittsöffnungen 26 der äußeren Luftkanäle 21 einmünden. Mit Hilfe dieser Luftführung wird der vom Gebläse durch die äußeren Kanäle 21 umgewälzte und am Verdampfer 13 abgekühlte Teilluftstrom bis in die Nähe der Türöffnung geleitet.The
Im unteren Drittel des Kühlfaches 13 befindet sich ein herausziehbarer Schubkasten 30, welcher im Abstand zum Boden des Gehäuses 11 angeordnet ist und dessen Abmessungen so gewählt sind, daß an seiner Rückwand und seinem Boden ebenso wie an seiner Frontseite ein durchgehender Luftkanal 31 entsteht, welcher eine Fortsetzung des an der unteren Kante der Zwischenwand 20 austretenden Luftkanales 22 bildet. Die oben liegende Öffnung des Schubkastens 30 ist mit einer Abdeckung 32 versehen, die ein nicht dargestelltes Feuchtefilter aufweist.In the lower third of the
Mit einem eine leichte Luftströmung gestattenden, geringem Abstand ist über der Abdeckung 32 des Schubkastens 30 eine an den Seitenwänden des Kühlfachs 13 abgestützte Tragplatte 33 angeordnet, deren frontseitige Kante über der Vorderkante des Schubkastens liegt und ebenso wie dieser mit entsprechendem Abstand gegenüber der Innenseite der geschlossenen Tür 12 verläuft, so daß dort eine Durchtrittsöffnung bestehen bleibt, deren Querschnitt in etwa demjenigen des um den Schubkasten 15 herumgeführten Luftkanales 31 entspricht. Die rückwärtige Kante der Tragplatte 33 liegt dagegen in Höhe des unteren Randes des Verdampfers 15 bzw. der Abdeckung 20.With a slight clearance allowing a slight air flow, a
Oberhalb der Tragplatte 33 sind in etwa gleichen Abständen übereinander drei weitere Tragplatten 34 in verschiedenen Abstellebenen angeordnet. Die oberste Tragplatte 34 liegt unmittelbar unter der Unterkante der seitlichen Ansätze 26 an der Zwischenwand 20, ungefähr auf gleicher Höhe wie das oberste Ablagefach 14. Seine Vorderkante ist diesem gegenüber zurückversetzt, so daß auf diese Weise bei geschlossener Tür 12 zwischen der äußeren Kante des Ablagefachs 14 und der Tragplatte 33 ein Spalt verbleibt, der sich nahezu über die ganze Breite des Kühlraumes erstreckt und eine ungehinderte Umwälzung der Kühlluft zuläßt.Above the
Mit der beschriebenen Anordnung und Ausbildung der Zwischenwand 22 ist es möglich, eine weitgehend gleichmäßige Temperaturverteilung in allen Zonen des Kühlraumes zu erzielen. Durch entsprechende Anordnung und Führung der Rippen 23 ist es dabei möglich, die Temperatur der durch die von ihnen begrenzte Kanäle geleiteten Luftströme durch Veränderung des Wärmeübergangs an der Wärmetauschfläche zu beeinflussen. Dies kann sowohl durch Veränderung der Länge der Kanäle als auch deren Breite und nicht zuletzt durch die damit beeinflußbare Strömungsgeschwindigkeit der Luft in den Kanälen geschehen.With the arrangement and configuration of the
Claims (6)
- Cooling apparatus (10), especially domestic refrigerator, with a cooling chamber (13), which is enclosed by a thermally-insulated housing (11), is provided at its front side with a door opening and the temperature of which is kept at least approximately constant by forced circulation of an air current, which is produced by a blower (17, 18), by way of an areal evaporator (15) arranged covered in the cooling chamber (13) behind a partition (20), characterised thereby that the partition (20) is provided on its side facing the cooling surface of the evaporator (15) with air guidance channels (21, 22), which issue at different height positions and which by their different lengths and/or cross-sections permit each time a different heat exchange of the air currents, which are guided therein, at the cooling surface of the evaporator (15).
- Cooling apparatus according to claim 1, characterised thereby that the air guidance channels (21, 22) are laterally bounded by ribs (23), which extend between the cooling surface of the evaporator (15) and that side of the partition (20), which faces this, and the width of which ribs corresponds at least approximately to the spacing of the evaporator (15) from the partition (20).
- Cooling apparatus according to claim 1 or 2, characterised thereby that at least three air guidance channels (21, 22) extend downwardly, starting from the upper centre of the partition (20) and the induction opening (25) located there of the blower (17), fan-shaped on the back wall thereof, wherein the two outwardly disposed ones are deflected upwardly approximately in the lower third of the partition (20) so that their outlet openings (26) lie above, whilst the intermediately disposed air channel (22) extends up to the lower edge of the partition (20).
- Cooling apparatus according to claim 3, characterised thereby that the partition (20) is provided in its upper region with projections (27) which extend forwardly in the proximity of the door opening and in which the upwardly disposed outlet openings (26) of the outer air channels (21) open out.
- Cooling apparatus according to claim 4, characterised thereby that the projections (27) adjoin the sides and/or the ceiling of the cooling chamber (13).
- Cooling apparatus according to claim 5, characterised thereby that the projections (27) are provided with openings disposed closely behind the door opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4131211 | 1991-09-19 | ||
| DE4131211A DE4131211C1 (en) | 1991-09-19 | 1991-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0532870A1 EP0532870A1 (en) | 1993-03-24 |
| EP0532870B1 true EP0532870B1 (en) | 1996-10-23 |
Family
ID=6440999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92113066A Expired - Lifetime EP0532870B1 (en) | 1991-09-19 | 1992-07-31 | Refrigeration apparatus, especially domestic refrigerator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0532870B1 (en) |
| AT (1) | ATE144614T1 (en) |
| DE (2) | DE4131211C1 (en) |
| ES (1) | ES2096681T3 (en) |
| TR (1) | TR28533A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002029339A1 (en) | 2000-10-06 | 2002-04-11 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating device |
| WO2003021168A1 (en) | 2001-09-04 | 2003-03-13 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with cooling air circulation |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327444A1 (en) * | 1993-08-14 | 1995-02-16 | Indramat Gmbh | Cooling device for a switching cabinet (electronics cabinet) |
| MY122559A (en) * | 1994-04-04 | 2006-04-29 | Samsung Electronics Co Ltd | Refrigerator. |
| DE29502800U1 (en) * | 1995-02-17 | 1995-04-20 | Bosch Siemens Hausgeraete | Cooling device, especially household refrigerator |
| DE29603848U1 (en) * | 1996-03-01 | 1997-05-28 | Liebherr Hausgeraete | Refrigerator with a cooling compartment and a cold storage compartment |
| DE10139835A1 (en) | 2001-08-14 | 2003-02-27 | Bsh Bosch Siemens Hausgeraete | cooling unit |
| ITPN20010060A1 (en) | 2001-09-12 | 2003-03-12 | Electrolux Zanussi Elettrodome | REFRIGERATOR WITH TWO OVERLAPPED COMPARTMENTS AND VENTILATED EVAPORATOR |
| DE102011113211A1 (en) * | 2011-09-12 | 2013-03-14 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB866140A (en) * | 1958-12-19 | 1961-04-26 | Gen Motors Corp | Improved household refrigerator |
| GB950091A (en) * | 1959-09-09 | 1964-02-19 | Philco Corp | Improvements in and relating to refrigeration and refrigeration apparatus |
| GB895548A (en) * | 1960-01-25 | 1962-05-02 | Gen Motors Corp | Improved forced-air refrigerator |
| CH635190A5 (en) * | 1977-02-03 | 1983-03-15 | Forster Hermann Ag | METHOD FOR REFRIGERATED STORAGE AND KEEPING FRESH PRODUCTS, AND COOLING FURNITURE FOR CARRYING OUT THE METHOD. |
| DE3028673A1 (en) * | 1980-07-29 | 1982-03-04 | Eisfink Carl Fink GmbH & Co, 7144 Asberg | Wine storage cabinet maintaining correct temp. - uses forced circulation of cool or heated air within interior of insulating housing |
-
1991
- 1991-09-19 DE DE4131211A patent/DE4131211C1/de not_active Expired - Lifetime
-
1992
- 1992-07-31 AT AT92113066T patent/ATE144614T1/en not_active IP Right Cessation
- 1992-07-31 ES ES92113066T patent/ES2096681T3/en not_active Expired - Lifetime
- 1992-07-31 DE DE59207424T patent/DE59207424D1/en not_active Expired - Lifetime
- 1992-07-31 EP EP92113066A patent/EP0532870B1/en not_active Expired - Lifetime
- 1992-09-10 TR TR00861/92A patent/TR28533A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002029339A1 (en) | 2000-10-06 | 2002-04-11 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating device |
| WO2003021168A1 (en) | 2001-09-04 | 2003-03-13 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with cooling air circulation |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE144614T1 (en) | 1996-11-15 |
| DE4131211C1 (en) | 1992-10-29 |
| DE59207424D1 (en) | 1996-11-28 |
| EP0532870A1 (en) | 1993-03-24 |
| ES2096681T3 (en) | 1997-03-16 |
| TR28533A (en) | 1996-09-30 |
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