Abstract:
A vacuum heat insulator small in limitation in shape of applicable objects, and wide in application is presented. A vacuum heat insulator (10) is formed of a plurality of core members (11) of thickness of 5 mm or less made of glass fiber shaped nearly in a regular octagonal shape, being coated with a gas barrier enveloping member (12) and evacuated in side. The core members (11) are shaped in octagon, and disposed in lattice layout at specified intervals so as to form folding lines in four directions of vertical, lateral and oblique 45-degree directions, parallel to each side. In order that the plurality of core members (11) may be located in independent spaces individually, the entire surface of the enveloping member around the core members (11) is formed as heat seal parts (13), and it is foldable in four directions and is flexible. By cutting the heat seal parts along the core members (11) so as to leave about 3 mm in the periphery, a vacuum heat insulator of any desired shape and wide effective heat insulating area can be obtained. The core members (11) may be formed in desired shape, and complicated shapes and through-holes can be formed, so that vacuum heat insulators applicable in a very wide scope of purposes can be presented.
Abstract:
A temperature control device in a refrigerator having at least one compartment (RC or FC) defined by top, bottom and opposite side walls (TW; BW; and SW), and a heat insulating material (12) exteriorly encircling the compartment. One of the side walls (SW) has a mounting hole (2) defined therein and having a front surface thereof confronting the compartment (RC or FC). The device includes a box-like console (C), a circuit carrier board (3) fixedly connected to a rear surface of the console (C) and having an electric wiring (11) extending outwardly therefrom, a display panel (30) disposed on a front surface of the console (C), at least one manipulatable temperature control element (31a, 31b, 31c: PB, LED) mounted on the console (C), a hat-like console casing (13) having a peripheral flange (10) and fixedly secured to the side wall (SW) in alignment with the mounting hole (2) with the peripheral flange (10) held in abutment with a rear surface of the side wall (SW) so as to define a console pocket (CP), and a plurality of mounting elements (6a, 6b; 55) engageable with one side edge of the side wall (SW) around the mounting hole (2) for securement of the console (C) to the side wall (SW). The console (C) is received in the console pocket (CP) with the electric wiring (11) accommodated within the console pocket (CP) and with the display panel (30) and the temperature control element confronting the compartment.
Abstract:
A hermetic compressor has low noise and high refrigerating capacity. This compressor includes a position adjustement mechanism, a communication cut-off mechanism, a flow path change-over mechanism, etc., in order to dispose an open end portion, inside of a sealed container, of a suction flow path through which a cylinder of a compressor communicates with the inside of the sealed container on a specified plane, so that it coincides with the positions of the nodes of a resonance mode occuring inside the sealed container.
Abstract:
An electrically-operated sealed compressor includes a cylinder, a cylinder head mounted on the cylinder and having a suction chamber and first and second discharge chambers, a piston accommodated in the cylinder, and a valve mechanism. The valve mechanism includes a suction muffler and a valve plate having at least one suction port, first and second discharge ports, and first and second pass holes. The first discharge port and the first pass hole communicate with the first discharge chamber, while the second discharge port and the second pass hole communicate with the second discharge chamber. The valve mechanism also includes first and second discharge valves mounted on the valve plate and accommodated in the first and second discharge chambers, respectively, a suction reed having a reed valve for selectively opening and closing the suction port, a discharge gasket for sealing the valve plate and the cylinder head, and a discharge muffler. The first and second discharge chambers are separated from each other by the discharge gasket to form respective independent spaces, while the first and second pass holes communicate with the discharge muffler.
Abstract:
A vacuum heat-insulator and a heat-insulating box using the insulator to be used as heat-insulating materials of a refrigerator and a freezer. The insulator comprises a core material consisting of at least two kinds of powder and an absorbent. This insulator has excellent heat-insulating performance, is lightweight and is economical, while the heat-insulating box maintains heat-insulating performance for a long time.
Abstract:
A refrigerator capable of constantly maintaining so high a humidity that is suitable for vegetables, and keeping vegetables fresh for a long period of time, by using a moisture permeable film of an automatically variable permeability in a vegetable room in the refrigerator and controlling the humidity in a vegetable storage container automatically and reliably so as to prevent the dew condensation from occurring. An upper side-opened vegetable storage container (18) is held in a refrigerator, and this vegetable container has a lid (19) covering and contacting the upper side thereof. The lid (19) is provided with a moisture permeable film (20) formed by a base fabric (21) of vapor permeable nylon or polyester, and a hydrophilic shape memory film (22) of a polyurethane resin.
Abstract:
A freezer for a refrigerator using 1,1,1,2-tetrafluoroethane as a refrigerant, wherein a lubricating oil (10) for a compressor mainly comprises an ester prepared by the reaction of at least one dihydric or higher alcohol bearing eight or less carbon atoms and having a viscosity of 2 to 8 cst at 100 °C with at least one linear or branched monobasic fatty acid bearing 5 to 8 carbon atoms and the moisture content in the freezer is kept below the saturation moisture content in the lubricating oil (10), thereby solving the problems of the return of the oil to the compressor and the inhibition of the circulation of the refrigerant by the moisture contained in the oil, and maintaining a stable performance for long.
Abstract:
In a laminated heat exchanger wherein partitions are provided in a plate (32) on a primary side and a plate (33) on a secondary side to form channels therein, and a plurality of the plates (32) on the primary side and the plates (33) on the secondary side are laminated one upon another with respective seal plates (3) therebetween, each of the partitions (35) of the plates (33) on the secondary side are located at positions opposed to each of the channels (11) of the plates (32) on the primary side and each of the partitions (34) of the plates (32) of the primary side are located at positions opposed to each of the channels (17) of the plates (33) on the secondary side, thereby preventing the seal plates (3) from being deformed even if pressure of the coolant flowing through the channels becomes nonuniform. Furthermore, sides of the plates (32) on the primary side, the plates (33) on the secondary side and the seal plates (3) are formed into shapes different from one another, thereby making it easy to identify falling-off of a plate.
Abstract:
The present invention is contemplated to provide a hermetic motor-driven compressor which is capable of decreasing both the resonance sound due to an oil feed pipe (8) and the resonance sound due to a crankshaft (4) generated when the oil feed pipe is rotated while being dipped in the refrigerating machine oil (4).Within a hermetically sealed enclosure (1), a compression component (10) and a motor drive component are supported through an elastic means, and the compression component comprises a crankshaft adapted to be rotatively driven by the motor drive component (10) through an eccentric portion and provided with a journal, a balance weight (12) disposed at the eccentric portion (6) and a coaxial oil feed pipe disposed in the balance weight so as to revolve coaxially with the journal, so that the stirring of the refrigerating machine oil can be suppressed.