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
  • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
  • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling 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
  • F25D23/00—General constructional features
  • F25D23/02—Doors; Covers
  • F25D23/021—Sliding doors
• • 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
• • 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
  • F25D2700/00—Means for sensing or measuring; Sensors therefor
  • F25D2700/12—Sensors measuring the inside temperature

Definitions

• the refrigerators available today essentially consist of a freezer / freezer and the actual refrigerator compartment. Temperatures in the refrigerator compartment are between three and six degrees Celsius. These temperatures are ideal for keeping or preserving most dairy products, eggs, etc. fresh. However, many types of fruit and vegetables would have to be kept at around eight to fifteen degrees Celsius if they were to stay fresh for as long as possible without loss of taste and loss of consistency. If, for example, melons are stored too cold, their flesh becomes mushy after warming up to room temperature. Temperatures slightly higher than six degrees Celsius would also be desirable for butter; the butter would then be spreadable immediately after removal from the refrigerator.
• the compressor of the cooling unit is located on the outside of the housing wall behind the drawers. According to most refrigerator manufacturers, the fruit and vegetable drawers should now have a slightly higher humidity and temperature because this area is not cooled directly with cooling coils and the waste heat from the compressor causes slightly higher temperatures. However, it can be seen that this fruit and vegetable compartment is not sealed airtight from the rest of the cold store, which is why at least the temperatures have the usual low values.
• FIG. 1 and FIG. 3 show, the warm compartment 2 in the refrigerator 1 is spatially completely separated from the other compartments 3.
• the previous freezer freezer compartment 4 is still available to store frozen products.
• the previous conventional cooling compartment 5 is also still available.
• the new warm compartment 2 which is particularly suitable for storing fruit, vegetables, drinks, butter and cheese, now has temperatures of eight to fifteen degrees Celsius. So these are ideal conditions for the products mentioned above.
• FIG. 1 shows the most sensible way of realizing this warm compartment 2.
• the warm compartment has a separate door 6, in which a butter compartment 7 and a beverage compartment 8 are integrated to accommodate all common containers.
• the traditional cooling compartment 5 can either be built the same size as before or smaller.
• the refrigerator gets bigger
• the second case one takes into account the fact that fewer products have to be stored at the lower temperatures, so they take up less space. It is easily possible to build refrigerators 1 with warm compartment 2 by cleverly dividing the previous space, which can be used as replacement devices for outdated refrigerators in existing kitchen combinations.
• FIG. 3 shows the possible design of the warm compartment 2 in a compact refrigerator for small kitchens.
• the warm compartment 2 is separated from the refrigerator compartment 5 by means of an internal warm compartment door 9.
• the warm compartment itself is thus a completely closed compartment, however, like the freezer compartment 4, is only accessible when the main door 10 is opened.
• the small internal warm compartment door has a smaller beverage compartment 8 for understandable reasons, but still has beverage cans and can hold beer bottles. It is also conceivable to dispense entirely with a drinks compartment 8 in the inner warm compartment door 9 in the case of small refrigerators. From this it can be deduced that the refrigerator with a separately accessible warm compartment 2 (FIG.
• a further embodiment is possible in which the warm compartment 2 is accessible through a main door 10 common to all compartments 2, 3, 4. Seals are attached to the inside of the main door, which seal the warm compartment 2 against the other compartments 3, 4.
• This version is very suitable for compact refrigerators, since no additional space is required by a warm compartment door 9.
• warm compartment 2 can basically be implemented in two ways.
• the first possibility is to equip the warm compartment 2 with its own cooling unit. This equipment, which is proven to be somewhat expensive, is worthwhile for larger refrigerators in industry and commerce.
• the autonomous cooling unit enables the temperature in warm compartment 2 to be regulated independently.
• warm compartment cooling coils 16 which belong to the overall unit, are installed in the partition 13 or directly in the wall compartment 2.
• the same coolant flows through these cooling coils as those in the conventional cooling compartment and in the freezer / freezer compartment.
• the number of warm compartment cooling coils 16 required in the warm compartment 2 is less than in a refrigerator or freezer compartment of the same volume, because the wall compartment has to be cooled less. Form the cooling coils 16 of the warm compartment 2 for this reason, the back flow of the coolant.
• the warm compartment is equipped with a thermostatic controller 14 (FIG. 1, FIG. 2), as is known from the conventional cooling compartments 5.
• the thermostatic controller 14 acts, for example, on a bypass valve 15 (FIG. 1) which is controlled by the flow and which is connected in parallel with the cooling coils 16 of the warm compartment 2. Depending on whether a higher or lower temperature in the warm compartment 2 is desired, less or even more coolant will flow through the warm compartment cooling coils 16 thanks to the corresponding position of the bypass valve 15.
• a solution that is favorable in terms of production technology also consists in that a thinner (ie “worse”) thermal insulation 12 is sufficient for the warm compartment 2, which has a favorable influence on the surcharge.
• a thinner thermal insulation 12 is sufficient for the warm compartment 2, which has a favorable influence on the surcharge.
• the reason for this is that the temperature difference between the interior of the warm compartment 2 and the surroundings is less than the temperature difference between the conventional cooling compartment 5 and the surroundings, which is why the "heat flow" into the warm compartment 2 is correspondingly smaller and thus a costly insulation is not justified.
• the manufacturer is free to use a conventional insulation thickness. This reliably prevents the formation of condensed water on the outer wall of the warm compartment.
• the cooling unit does not have to cool as much, which is directly reflected in the reduced energy consumption.
• the new warm compartment for refrigerators allows fruit, vegetables, cheese, butter etc. to be stored at a temperature of eight to fifteen degrees Celsius. These are ideal conditions for many types of fruit and vegetables, the butter is spreadable immediately after being removed from the refrigerator and the drinks are just so cool that they can be drunk immediately even by people with sensitive teeth or a sensitive stomach.

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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)
• Devices That Are Associated With Refrigeration Equipment (AREA)

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Citations (15)

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• 1990
  • 1990-08-13 CH CH2624/90A patent/CH681107A5/de not_active IP Right Cessation
• 1991
  • 1991-08-05 CN CN91105409.XA patent/CN1059025A/zh active Pending
  • 1991-08-08 WO PCT/CH1991/000163 patent/WO1993003316A1/de unknown
  • 1991-08-12 FR FR9110233A patent/FR2665754A1/fr not_active Withdrawn
  • 1991-08-12 BE BE9100736A patent/BE1004258A5/fr not_active IP Right Cessation
  • 1991-08-13 IT ITMI912255A patent/IT1251222B/it active IP Right Grant

Patent Citations (15)

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