Abstract:
The present invention relates to a cooling device (1) comprising at least one cooling compartment (2) and at least one freezing compartment (3), an insulator intermediate wall (4) which separates the compartments (2 and 3) from each other, at least one evaporator (5) which provides the cooling of the air circulated in the compartments (2 and 3), a compressor (6) which compresses the refrigerant passing through the evaporator (5) and circulates in the refrigeration cycle, a channel (7) through which the air passes returning from the cooling compartment (2) to the volume (H) containing the evaporator (5), a fan (8) which blows the cooled air towards the compartments (2 and 3), and a defrost heater (9) situated on the evaporator (5).
Abstract:
The invention relates to a refrigerator (1) comprising a freezing compartment (7) and a door (3) for selectively opening or closing at least a part of the freezing compartment (7), wherein the door (3) comprises a foam insulating layer (6) and a sidewall (49) contacting the foam insulating layer (6). According to the invention, the refrigerator further comprises a heater (47) that is installed correlative with the sidewall (49) to supply heat to the sidewall (49).
Abstract:
A pulse electrothermal deicing apparatus comprises at least one complex shape ( 40(2), 40(3), 40(4) ) characterized by a thickness profile configured to generate uniform power per unit area to melt an interfacial layer of ice. A method of optimizing thicknesses of complex shapes for a pulse electrothermal deicing system includes assigning initial estimates of the pulse electrothermal deicing system parameters. A temperature distribution, a temperature range and a refreezing time produced by a deicing pulse are modeled. Shape thicknesses are adjusted according to the temperature range, deicing pulse parameters are adjusted according to the deicing pulse, and the modeling and adjusting is repeated until the temperature range and the refreezing time are within predetermined limits.A pulse electrothermal deicing apparatus comprises at least one complex shape ( 40(2), 40(3), 40(4) ) characterized by a thickness profile configured to generate uniform power per unit area to melt an interfacial layer of ice. A method of optimizing thicknesses of complex shapes for a pulse electrothermal deicing system includes assigning initial estimates of the pulse electrothermal deicing system parameters. A temperature distribution, a temperature range and a refreezing time produced by a deicing pulse are modeled. Shape thicknesses are adjusted according to the temperature range, deicing pulse parameters are adjusted according to the deicing pulse, and the modeling and adjusting is repeated until the temperature range and the refreezing time are within predetermined limits.
Abstract:
Eine Verdampfer-Baugruppe für ein No-Frost-Kältegerät umfasst einen Verdampfer (8), eine Rohrheizung (20) und ein den Verdampfer (20) und die Rohrheizung (8) umgebendes Gehäuse (7). Die Rohrheizung (20) umfasst eine Vielzahl von untereinander einteilig zusammenhängenden parallelen Rohrabschnitten (21). Anfang und Ende der Rohrheizung (20) befinden sich an zwei unmittelbar benachbarten parallelen Rohrabschnitten (21).
Abstract:
Systems and methods for pulse electrothermal and heat-storage ice detachment. A pulse electrothermal ice detachment apparatus includes one or more coolant tubes, and optionally, fins in thermal contact with the coolant tubes. The tubes and/or fins form a resistive heater. One or more switches may apply electrical power to the resistive heater, generating heat to detach ice from the tubes and/or the fins. A freezer unit forms a heat-storage icemaking system having a compressor and a condenser for dissipating waste heat, and coolant that circulates through the compressor, the condenser and a coolant tube. The coolant tube is in thermal contact with an evaporator plate. A tank, after the compressor and before the condenser, transfers heat from the coolant to a heating liquid. The heating liquid periodically flows through a heating tube in thermal contact with the evaporator plate, detaching ice from the evaporator plate.
Abstract:
Refrigerator including a cold air duct (500) for receiving cold air circulating insides of a refrigerating chamber (111) and a freezing chamber (110), an evaporator (200) in the cold air duct, at least one defrosting heater (300) in the cold air duct (500) for selective emission of heat, a fan (600) in the cold air duct (500), for selective direction of the cold air in upward or downward, a motor (610) for driving the fan (600), and open/close means (700,800) for closing a space having the evaporator, the defrosting heater, and the fan positioned therein selectively, thereby providing an improved defroster for an evaporator.
Abstract:
The present invention relates to a refrigerated air supply system (21) for a freezer and/or refrigerator cabinet having at least one cabinet compartment (17) at least partly defined by inner walls (16), an insulation layer at least partly enclosing said cabinet compartment. Said cabinet compartment (17) has an compartment opening facing substantially upwards, which compartment opening connects said cabinet compartment (17) with the space surrounding said cabinet, said cabinet also comprising ,:a door which in one position covers said compartment opening and substantially encloses said cabinet compartment (17). The cabinet further comprises a machine compartment (23) for storing at least a compressor, at least one of said inner walls (16) having a substantially horizontal shelf plane (52) where at least one off the planes (52) is being positioned vertically above said machine compartment (23). The refrigerated air supply system (21) of the present invention is positioned inside at least one of said cabinet compartments, the system comprising at least one evaporator (26), at least one return ducting part and at least one fan (28). Said refrigerated air supply system (21) further comprises at least one air supply outlet which provides an airflow (47) into at least one of said cabinet compartments (17) and at least one air supply inlet which brings an airflow (50) out from at least one of said cabinet compartments (17).
Abstract:
A perforated (6) grid (2) is used to avoid the blocking of the intermediate division and the water drainage canal (5) by the snow and ice pieces that fall into the water drainage pool (4) in large masses during the defrosting of the evaporator of a two-door, "No-Frost" refrigerator having freezer and fresh food compartments and to melt these masses by means of the switched-in heaters (1). The grid (2) is made of a rectangular and preferably metallic sheet iron piece. At the bottom of the grid (2) perforations (6) are arranged with a certain distance from each other and in any desired number and form. Furthermore, the lowest part of the evaporator (3) heater (1) is seated on the grid (2) base and the heater (1) is mounted by means of the detents (7) formed on the grid (2), in such a manner that it will be in contact with the bottom of the grid (2).
Abstract:
A resistance element for evaporators in refrigeration units comprising a resistive wire (4) surrounded by a layer of dielectric material and housed in a sheath (6) of heat-conducting material, to the ends of the sheath there being applied at least one temperatrue limiting element (12) and one temperature regulating element (10), characterised in that said elements have their sensitive part in contact with the sheath and are surrounded by a block of heat-insulating material.