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公开(公告)号：JPH11270956A
公开(公告)日：1999-10-05
申请号：JP7525898
申请日：1998-03-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： YAMAMOTO HARUYOSHI
Abstract: PROBLEM TO BE SOLVED: To reduce the resistance of cold air, which is accompanied by a long duct, by a method wherein an ice storage chamber and a storage chamber are arranged in left-and-right direction to each other at the same height while a first fan is arranged at the center of the height of a refrigerator. SOLUTION: Cold air, cooled by a cooler 31, ascends through a suction duct 45 and arrives at a first fan 32. The cold air, arriving at the first fan 32, is distributed into ducts communicated with respective storage chambers and is guided to respective storage chambers. Cold air, sent to a refrigerating chamber 20, flows into a refrigerating chamber duct 46 and is ventilated into the refrigerating chamber 20 through a refrigerating damper device 47 whereby an indoor temperature is cooled to the refrigerating temperature of 4 deg.C. The cold air, which has cooled the inside of the refrigerating chamber to a predetermined temperature, enters a returning duct and returns into the cooler 31. In this case, the first fan 32 is positioned at the center of the height of the refrigerator substantially whereby a refrigerating chamber duct 45, communicated with the refrigerating chamber 20, becomes shorter compared with the length of duct for a refrigerator provided with the fan arranged near the lower part of the refrigerating chamber thereby reducing the resistance of the cold air upon passing through the duct.
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公开(公告)号：JPH08285436A
公开(公告)日：1996-11-01
申请号：JP9067495
申请日：1995-04-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUBOTA YOSHITAKA , NODA TOSHINORI , ONISHI YASUTOMO , YAMAMOTO HARUYOSHI , HAMANO YASUKI , KANEOKA SHINICHI , MORISHITA KENICHI
Abstract: PURPOSE: To enhance the efficiency of heat exchange of a condenser by providing the condenser in which one straight pipe comprising a metallic pipe and heat radiating plates brought into thermal contact with the metallic pipe is bent plural times on the same plane and which is arranged on a mounting plate forming a machine chamber in such a manner that the heat radiating plates are made substantially horizontal with respect to the mounting plate. CONSTITUTION: A condenser 1 is formed of one straight pipe comprising a pipe and heat radiating plates, which are brought into thermal contact with the pipe, and the heat radiating plate are mounted perpendicularly relative to the metallic pipe. This straight pipe is bent plural times on the same plane to form one condenser 1. The condenser 1 is arranged so that the heat radiating plates at the linear portions are made substantially horizontal with respect to a mounting plate 7. In this case, cold air blown from a fan 13 is put into a condition of a violently turbulent flow, and a heat radiating effect due to the turbulent flow is promoted on the surface of the condenser 1, while the condenser 1 is prevented from being covered with dust with the aid of the turbulent flow. Cold air thus introduced cools a compressor 6 after exchanging heat with the condenser 1 and is discharged through an air outlet port.
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公开(公告)号：JPH08247584A
公开(公告)日：1996-09-27
申请号：JP5439695
申请日：1995-03-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： YAMAMOTO HARUYOSHI
Abstract: PURPOSE: To make a liquid refrigerant less apt to return to a compressor by a method wherein an internal space of a chamber is divided by a partition plate and a return refrigerant inflow pipe and a return refrigerant outflow pipe is connected respectively to one space, and a condensed refrigerant inflow pipe and a condensed refrigerant outflow pipe respectively to the other pace to evaporate the return liquid refrigerant retained utilizing heat of the condensed refrigerant. CONSTITUTION: The internal space of a chamber 15 is divided into two spaces 17a and 17b by a partition plate 16 to form an accumulator body 18. A return refrigerant inflow pipe 19 and a return refrigerant outflow pipe 20 are connected to one space 17a and a condensed refrigerant inflow pipe 21 and a condensed refrigerant outflow pipe 22 are connected to the other space 17b respectively. Then, at the starting of a compressor or when the load of a refrigerating system is small, a liquid refrigerant which runs over an evaporator to be accumulated in the one space 17a is heated and evaporated by a condensed refrigerant introduced into the other space 17b to be turned to a gas refrigerant. Thus, the liquid refrigerant is caused to be entrained into a flow of the gas refrigerant to keep it less apt to return to the compressor thereby preventing possible damage to the compressor.
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公开(公告)号：JPH05288182A
公开(公告)日：1993-11-02
申请号：JP8356892
申请日：1992-04-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： YAMAMOTO HARUYOSHI
Abstract: PURPOSE:To feed oil not containing refrigerant to a crankshaft so as to prevent oil film break and the lowering of oil viscosity by forming a liquid refrigerant inlet pipe of nonmetallic material so as to make heat conductivity low, thereby preventing refrigerant from being liquefied on the surface of the inlet pipe. CONSTITUTION:An inlet pipe 24 piercing a closed container 1 and pressfitted into a cylinder 7 leads refrigerant and circulating oil to a compression chamber from a connecting pipe 23. This inlet pipe 24 is formed of nonmetallic material such as rubber or resin, so that heat conductivity is low, and the refrigerant is prevented from being condensed on the pipe surface and dripping. Accordingly, the wear of a crankshaft member is not accelerated due to oil film break and the lowering of oil viscosity so as to prolong the life of a compressor.
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公开(公告)号：JPH0445377A
公开(公告)日：1992-02-14
申请号：JP15329390
申请日：1990-06-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： TSUDA KENJI , KITAGAWA HIROAKI , YAMAMOTO HARUYOSHI
IPC: F25D23/02
Abstract: PURPOSE:To prevent clouding at a hydrophilic film from occurring on an inner transparent plate even if a dew formation occurs on the film and enable an inside part of a refrigerator to be seen by a method wherein the hydrophilic film is laminated on an inside surface of the transparent plate facing to an inside part of the refrigerator. CONSTITUTION:A plurality of closed spacings 4 formed between piled-up transparent plates 1a, 1b and 1c are formed as thermal insulating layers. A hydrophilic film 10 is adhred to a surface of the transparent plate 1c of the refrigerator. As the hydrophilic film, a film composed of polymer having hydrophilic or water absorbing characteristics can be used. With such an arrangement, the refrigerator door shows that the transparent plate 1c within the refrigerator has a uniform wetting at the surface even under a dew formation due to the fact that the hydrophilic film 10 for use in prohibiting cloudy state therein also during a time in which the items in the refrigerator are being opened after opening the door and thus the door is not clouded at its surface. In addition, even if the transparent plate 1c is cracked, the transparent plate 1c is not splashed due to the fact that the clouding preventive hydrophilic film 10 is adhered.
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Patent Agency Ranking
公开(公告)号：JP2002130912A
公开(公告)日：2002-05-09
申请号：JP2000330250
申请日：2000-10-30
Applicant: MATSUSHITA REFRIGERATION
Inventor： YAMAMOTO HARUYOSHI , HAMANO YASUKI
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator which is contrived to improve the heat transmission efficiency of a suction pipe and, at the same time, to improve the cooling efficiency of a refrigerating cycle having a plurality of coolers. SOLUTION: Since grooves 23 are provided on the internal surface of the suction pipe 20, the heat transfer rate of a refrigerant is improved and the dryness of the refrigerant at the outlet of the suction pipe 20 becomes smaller when heat exchange is made between a capillary tube 21 and the suction pipe 20. Consequently, latent heat of vaporization having a broad width is obtained. In addition, a means which reduces the volume of a connecting pipe 24 connecting the first and second coolers 12 and 14 to each other is provided so as to prevent the insufficient circulation of a liquid refrigerant by reducing the stagnating quantity of the refrigerant in the pipe 24.
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公开(公告)号：JPH08285426A
公开(公告)日：1996-11-01
申请号：JP8813195
申请日：1995-04-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： MORISHITA KENICHI , NODA TOSHINORI , ONISHI YASUTOMO , YAMAMOTO HARUYOSHI , HAMANO YASUKI , KANEOKA SHINICHI , KUBOTA YOSHITAKA
Abstract: PURPOSE: To reduce a consumption power of a refrigerator by a method wherein a flow rate of refrigerant is adjusted in such a way that a requisite minimum flow rate of refrigerant required for preventing dew formation may be flowed so as not, to provide heating more than that required for a condenser to prevent dew formation of a refrigerator. CONSTITUTION: This refrigerator is comprised of a bypass pipe 6 for bypassing a dew formation preventing condenser 2b, a pressure sensing device for sensing a pressure within the dew formation preventing condenser 2b and a refrigerant flow rate distributing device 7 for distributing a flow rate of refrigerant flowing in the bypass pipe 6 in response to an output of the pressure sensing device.
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公开(公告)号：JPH04240374A
公开(公告)日：1992-08-27
申请号：JP559291
申请日：1991-01-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KITAGAWA HIROAKI , TSUDA KENJI , YAMAMOTO HARUYOSHI
IPC: F25D23/02
Abstract: PURPOSE:To prevent a gasket from being exposed to cold air directly by a method wherein left and right doors, supported pivotably through bearings, are provided so as to blockade the opening of an adiabatic box having the opening and a guide section, preventing the invasion of cold air by pivoting a partitioning body by the opening and/or closing of the doors, are provided while a gap between an outer casing and an inner casing is eliminated by the guide sections, in a freezing refrigerator having both sides opening doors. CONSTITUTION:A step at the connecting part of an outer casing 2 and in inner casing 3 is eliminated by guide decorative plates 14. A freezing refrigerator, having excellent cooling efficiency, can be realized by improving the configuration of guide sections to eliminate the gap generated by the step between the outer casing and the inner casing of a freezing refrigerator 1 equipped with a first door 6A and a second door 6B of both sides opening type.
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公开(公告)号：JPH04184065A
公开(公告)日：1992-07-01
申请号：JP30986590
申请日：1990-11-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： KITAGAWA HIROAKI , TSUDA KENJI , YAMAMOTO HARUYOSHI
Abstract: PURPOSE:To perform high-efficient transmission of heat to the protrusion of a guide part and additionally effect fixing of a heat generating body by a method wherein providing the heat generating body located to the guide part and forming a screw hole for mounting in which the heat generating body is fixed. CONSTITUTION:Decoration plates 14 of a guide part are positioned on the non- pivotal supporting sides of doors 6A and 6B and facing the upper and lower parts of the edge part of an opening 5A of a heat generating box 5, and guide parts 8 are located facing each other to the upper and the lower parts of the opening 5A. Semicircular grooves 10 slidably coinciding with respective protrusions 8A of the guide parts 8 are formed in the upper and lower end parts of a partition body 9 heat generating body 16 or a heat generating body mounting plate is fixed in a mounting hole 8B formed in the protrusion 8A of the guide part 8 by means of a screw having excellent heat conductivity. This constitution high-efficiently heats the protrusion 8A of the guide part by means of the heat of the heat generating body 16.
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公开(公告)号：JP2001108350A
公开(公告)日：2001-04-20
申请号：JP28132499
申请日：1999-10-01
Applicant: MATSUSHITA REFRIGERATION
Inventor： YAMAMOTO HARUYOSHI
IPC: F25D19/00
Abstract: PROBLEM TO BE SOLVED: To enhance workability and assembling quality by arranging compressor piping and an electric component terminal efficiently. SOLUTION: A machine room 38 for disposing a compressor 37 is provided on one side at the lower rear part of a refrigerator body 24 and a cooler 34 is disposed in the compartment space on the other side. The cooler 34 and the compressor 37 are juxtaposed laterally in order to enhance mounting efficiency of refrigeration cycle. Since the compressor 37, where a delivery tube 40, a suction tube 43 and a process tube 45 are collected on the outer shell surface on the electric component terminal 46 side, is disposed in the machine room 38 compacted in the widthwise direction while facing the open plane thereof, workability of soldering work, evacuation work, encapsulation work of refrigerant and mounting/demounting work of electric component is enhanced and assembling quality is enhanced by reducing leakage of refrigerant.
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