GB2175384A - Refrigerators - Google Patents
Refrigerators Download PDFInfo
- Publication number
- GB2175384A GB2175384A GB08611558A GB8611558A GB2175384A GB 2175384 A GB2175384 A GB 2175384A GB 08611558 A GB08611558 A GB 08611558A GB 8611558 A GB8611558 A GB 8611558A GB 2175384 A GB2175384 A GB 2175384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refrigerator
- channel
- cabinet
- defrost water
- evaporator
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
-
- 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
- F25D2321/142—Collecting condense or defrost water; Removing condense or defrost water characterised by droplet guides
-
- 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)
Abstract
A refrigerator or refrigerator/freezer has an open drainage channel 6 e.g. in part of the wall of the refrigerator cabinet which carries defrost water from the refrigerator evaporator 2 to a disposal point in order to inhibit the formation of fungal growth which can occur with a completely closed drainage tube. The defrost water is guided to the channel 6 by two sloping ledges 4, 5 and leaves the channel through an outlet 9. <IMAGE>
Description
SPECIFICATION
Refrigerators
This invention relates to refrigerators of the kind provided with means enabling defrosted water from the refrigerator evaporator to be drained from the refrigerator cabinet, and especially, though not exclusively, to such refrigerators in which defrosting of the evaporator is carried out automatically. The invention also relates to combined refrigerator/freezers incorporating such a facility.
In such appliances as constructed hitherto, the defrosted water is commonly carried, via a drain tube, from a drain gully at the back of the refrigerator cabinet to a disposal point where evaporation of the accumulating defrost water occurs. The disposal point often comprises an evaporation tray attached to the compressor housing for the refrigeration system which, operating at a relatively high temperature, facilitates such disposal.
It is not uncommon also to make use of the moulded inner liner of the refrigerator to provide integrally formed sloping shelves on to which the defrost water trickling down the evaporator spills, the water then being directed to the disposal point as aforementioned.
A problem encountered with both systems is concerned with the build-up of mould or fungal growth in the drain pipe at a location near its outlet from the refrigerator storage cabinet, that is in the region where there is high humidity caused by the presence of defrost water, and where the temperature within the pipe is somewhat above that of the ambient air temperature due to the effect of heat generated by the refrigerator system. Such relatively warm, humid conditions are particularly suitable for mould growth which can lead eventually to a restriction in the bore of the drain tube and ultimately a blockage, causing build-up of defrost water within the cabinet.
Moreover, the mere presence of fungal growth is itself an undesirable feature, especially in an appliance concerned with storage of food.
An object of the present invention is to preclude the formation of fungal growth by eliminating the refrigerator drain tube and the invention consists in providing, in a refrigerator or refrigerator/freezer an open drainage channel which permits passage of defrost water from the evaporator to a disposal point.
In a preferred arrangement the defrost water is drained down a channel situated in a wall of the refrigerator cabinet and conveniently the channel may form part of the wall, for example, integrally moulded in a wall of a plastic liner for the refrigerator.
Referring to the attached drawing which shows in exemplary form a perspective view of the interior of part of a refrigerator cabinet provided with an open drainage channel according to the invention, the liner 1, being part of a refrigerator casing (not shown), forms essentially a food storage cabinet in which is mounted an evaporator 2 which is part of an associated refrigerator system.
Moulded into the rear wall 3 of the liner 1 are two sloping ledges 4 and 5 onto which water trickling down the evaporator during a defrost operation is spilled. The upper surfaces 4a and 5a of that ledge slope downwardly and inwardly so as to direct the defrost water into a vertically disposed open drainage channel 6, also moulded into the rear wall 3 of the liner 1. At its lower end the drainage channel 6 merges into and forms a well 7 in a horizontal floor 8 of the liner 1. Mounted in the well is an outlet 9 through which defrost water can pass, it being arranged for the channel 6 and the well 7 with its outlet 9 to be positioned in the liner so that defrost water passing through the outlet can be collected in an evaporation tray (not shown) located beneath the outer end of the outlet the water being fed directly from the outlet into the evaporation tray.
Thus, apart from a very limited passage through the outlet 9, defrost water from the evaporator passing to the disposal point is never enclosed and does not pass through any region where warm humid conditions, such as to induce the formation of fungal growth can occur. Furthermore, for most of its length the channel can readily be cleaned by the user thus eliminating any possible health hazard or other undesirable presence.
It will be appreciated that other forms of open channel or channels and alternative locations of such channel or channels may be provided to achieve the effect of the invention.
For example, a channel may be located to one side of the rear wall of the liner such construction being ideal if the refrigerator compressor with its associated evaporation tray also happens to be located to one side of the refrigerator cabinet.
Alternatively the channel may be formed in an external wall of the cabinet, the defrost water being fed from a drain gully beneath the evaporator, through a short outlet into an open drainage channel leading down said external wall to the associated evaporation tray.
Moreover the drainage channel, whether it be located internally or externally of the cabinet, may be inclined at an angle to the vertical instead of being disposed substantially vertically as in the embodiment illustrated.
1. A refrigerator or refrigerator/freezer provided with an open drainage channel which permits passage of defrost water from the evaporator to a disposal point.
2. A refrigerator or refrigerator/freezer according to Claim 1, wherein the drainage channel is situated in a wall of the refrigerator cabinet.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (8)
1. A refrigerator or refrigerator/freezer provided with an open drainage channel which permits passage of defrost water from the evaporator to a disposal point.
2. A refrigerator or refrigerator/freezer according to Claim 1, wherein the drainage channel is situated in a wall of the refrigerator cabinet.
3. A refrigerator or refrigerator/freezer according to Claim 2, wherein the channel is integrally moulded in a wall of a plastic liner for the refrigerator.
4. A refrigerator or refrigerator/freezer according to Claim 3, wherein the liner has moulded integrally with it at least one inclined gulley which is disposed so as to collect water which trickles down the evaporator and to direct it into said open drainage channel.
5. A refrigerator or freezer according to
Claim 4, wherein the open drainage channel is substantially vertical.
6. A refrigerator or refrigerator/freezer according to Claim 5, wherein the disposal point is situated outside the refrigerator cabinet below the lower end of the open vertical channel.
7. A refrigerator or refrigerator/freezer according to Claim 6, wherein the defrost water is disposed of by means of an evaporation tray.
8. A refrigeration or refrigeration/freezer substantially as hereinbefore described with reference to the accompanying drawing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB858512339A GB8512339D0 (en) | 1985-05-15 | 1985-05-15 | Refrigerators |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8611558D0 GB8611558D0 (en) | 1986-06-18 |
GB2175384A true GB2175384A (en) | 1986-11-26 |
GB2175384B GB2175384B (en) | 1989-12-28 |
Family
ID=10579191
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB858512339A Pending GB8512339D0 (en) | 1985-05-15 | 1985-05-15 | Refrigerators |
GB8611558A Expired GB2175384B (en) | 1985-05-15 | 1986-05-12 | Refrigerators |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB858512339A Pending GB8512339D0 (en) | 1985-05-15 | 1985-05-15 | Refrigerators |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8512339D0 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1184635A2 (en) * | 2000-09-04 | 2002-03-06 | BSH Fabricacion, S.A. | Refrigeration apparatus |
WO2003085339A1 (en) * | 2002-04-05 | 2003-10-16 | Dometic Gmbh | Refrigerator housing |
AT500939A1 (en) * | 2005-06-08 | 2006-05-15 | Aht Cooling Systems Gmbh | COOLING UNIT |
EP1843112A2 (en) | 2006-04-07 | 2007-10-10 | Whirlpool Corporation | Arrangement to quickly remove the frost from the lower temperature wall of a 0 °C cavity of a refrigerator |
DE102009002801A1 (en) * | 2009-05-04 | 2010-11-11 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance, in particular household refrigerating appliance with a condensate drainage channel |
CN104061739A (en) * | 2014-06-03 | 2014-09-24 | 飞格乐思(广州)制冷设备有限公司 | Water receiving box device in freezer and freezer comprising water receiving box device |
RU2537536C2 (en) * | 2010-09-03 | 2015-01-10 | Бсх Бош Унд Сименс Хаусгерете Гмбх | Refrigeration device, in particular domestic refrigeration device |
CN104457096A (en) * | 2014-12-02 | 2015-03-25 | 海信容声(广东)冰箱有限公司 | Refrigerator with freezing and blocking prevention air duct structure |
US20170023290A1 (en) * | 2014-02-17 | 2017-01-26 | Dometic S.A.R.L. | Cooling apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB720985A (en) * | 1952-06-05 | 1954-12-29 | Gen Electric | Improvements in and relating to refrigerators |
GB773927A (en) * | 1954-08-19 | 1957-05-01 | Gen Electric | Improvements relating to refrigerators |
GB780006A (en) * | 1953-01-05 | 1957-07-31 | Gen Electric | Improvements relating to refrigerators |
GB808949A (en) * | 1956-09-26 | 1959-02-11 | Gen Motors Corp | Improvements in or relating to heat exchangers, particularly refrigerator evaporators, and a method of making heat exchangers |
GB1129052A (en) * | 1966-02-01 | 1968-10-02 | Gen Motors Corp | Refrigerator |
GB1540736A (en) * | 1975-08-29 | 1979-02-14 | Electrolux Ltd | Freezer having means for discharging melt water |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB630578A (en) * | 1945-12-12 | 1949-10-17 | C V Hill & Company Inc | Self service refrigerated display and storage case |
IT8434020V0 (en) * | 1984-03-28 | 1984-03-28 | Zanussi A Spa Industrie | SCREW CONVEYING DEVICE IN REFRIGERANT EQUIPMENT. |
-
1985
- 1985-05-15 GB GB858512339A patent/GB8512339D0/en active Pending
-
1986
- 1986-05-12 GB GB8611558A patent/GB2175384B/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB720985A (en) * | 1952-06-05 | 1954-12-29 | Gen Electric | Improvements in and relating to refrigerators |
GB780006A (en) * | 1953-01-05 | 1957-07-31 | Gen Electric | Improvements relating to refrigerators |
GB773927A (en) * | 1954-08-19 | 1957-05-01 | Gen Electric | Improvements relating to refrigerators |
GB808949A (en) * | 1956-09-26 | 1959-02-11 | Gen Motors Corp | Improvements in or relating to heat exchangers, particularly refrigerator evaporators, and a method of making heat exchangers |
GB1129052A (en) * | 1966-02-01 | 1968-10-02 | Gen Motors Corp | Refrigerator |
GB1540736A (en) * | 1975-08-29 | 1979-02-14 | Electrolux Ltd | Freezer having means for discharging melt water |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1184635A3 (en) * | 2000-09-04 | 2002-12-11 | BSH Fabricacion, S.A. | Refrigeration apparatus |
EP1184635A2 (en) * | 2000-09-04 | 2002-03-06 | BSH Fabricacion, S.A. | Refrigeration apparatus |
WO2003085339A1 (en) * | 2002-04-05 | 2003-10-16 | Dometic Gmbh | Refrigerator housing |
US7296432B2 (en) | 2002-04-05 | 2007-11-20 | Dometic Gmbh | Refrigerator housing |
US8490420B2 (en) | 2005-06-08 | 2013-07-23 | Aht Cooling Systems Gmbh | Refrigerating device |
AT500939A1 (en) * | 2005-06-08 | 2006-05-15 | Aht Cooling Systems Gmbh | COOLING UNIT |
AT500939B1 (en) * | 2005-06-08 | 2006-11-15 | Aht Cooling Systems Gmbh | Cooler for frozen products, has evaporator thermally impinging product chamber via sidewall of chamber and partly heating drain channel, when chamber is defrosted, where sidewall is equipped with drain channel |
EP1843112A2 (en) | 2006-04-07 | 2007-10-10 | Whirlpool Corporation | Arrangement to quickly remove the frost from the lower temperature wall of a 0 °C cavity of a refrigerator |
EP1843112A3 (en) * | 2006-04-07 | 2007-12-19 | Whirlpool Corporation | Arrangement to quickly remove the frost from the lower temperature wall of a 0 °C cavity of a refrigerator |
DE102009002801A1 (en) * | 2009-05-04 | 2010-11-11 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance, in particular household refrigerating appliance with a condensate drainage channel |
EP2249109A3 (en) * | 2009-05-04 | 2010-12-08 | BSH Bosch und Siemens Hausgeräte GmbH | Cooler, in particular household cooler with a condensate gutter |
RU2537536C2 (en) * | 2010-09-03 | 2015-01-10 | Бсх Бош Унд Сименс Хаусгерете Гмбх | Refrigeration device, in particular domestic refrigeration device |
US20170023290A1 (en) * | 2014-02-17 | 2017-01-26 | Dometic S.A.R.L. | Cooling apparatus |
US10508854B2 (en) * | 2014-02-17 | 2019-12-17 | B. Medical Systems, S.a.r.l. | Cooling device for the cooled storage of medical products |
CN104061739A (en) * | 2014-06-03 | 2014-09-24 | 飞格乐思(广州)制冷设备有限公司 | Water receiving box device in freezer and freezer comprising water receiving box device |
CN104457096A (en) * | 2014-12-02 | 2015-03-25 | 海信容声(广东)冰箱有限公司 | Refrigerator with freezing and blocking prevention air duct structure |
Also Published As
Publication number | Publication date |
---|---|
GB8611558D0 (en) | 1986-06-18 |
GB2175384B (en) | 1989-12-28 |
GB8512339D0 (en) | 1985-06-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |