-
公开(公告)号：JP2003232590A
公开(公告)日：2003-08-22
申请号：JP2003066491
申请日：2003-03-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , SHIMIZU TAKESHI , NISHIMURA KOICHI
Abstract: PROBLEM TO BE SOLVED: To reduce the danger due to combustion in defrosting in the environment where the combustible refrigerant leaks in a refrigerator using combustible refrigerant. SOLUTION: A defrosting means 26 composed of a metal pipe 48, a heater wire 37 and an insulating material 49 is disposed below an evaporator 10, a water catch tray 50 with a heating means is provided on the lower part of the defrosting means 26 to heighten the defrosting efficiency, and the surface temperature during defrosting operation of the defrosting means 26 is held below an ignition point of the flammable refrigerant to reduce the possibility of ignition when the flammable refrigerant leaks. COPYRIGHT: (C)2003,JPO
-
公开(公告)号：JP2002203668A
公开(公告)日：2002-07-19
申请号：JP2001368288
申请日：2001-12-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , SHIMIZU TAKESHI , NISHIMURA KOICHI
Abstract: PROBLEM TO BE SOLVED: To reduce a danger of combustion, generated when a frost removing operation of a frost remover, using a frost removing heater, is carried out under an environment that a flammable coolant is leaked, at the refrigeration cycle using the flammable coolant. SOLUTION: A frost removing heater, having a spiral heater wire in a glass tube, is used as a frost removing means 18, removing the frost deposited on an evaporator 10 of refrigeration cycle using a flammable coolant, and the heat value per unit area, which is the heat value of the spiral heater wire divided by the surface area of the same, is made 2.5 W/cm2 or less, and the heat value, divided by the volume of the area surrounded by the length and outer diameter of the spiral part, is made 8.5 W/cm3, and the pitch of the spiral is made 2 mm or more, thus, the temperature at the frost removing means 18 is reduced so as to become lower than ignition point of the flammable coolant.
-
公开(公告)号：JP2001133128A
公开(公告)日：2001-05-18
申请号：JP31923299
申请日：1999-11-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , SHIMIZU TAKESHI , NISHIMURA KOICHI
Abstract: PROBLEM TO BE SOLVED: To obtain a refrigerator employing combustible refrigerant in which the risk of firing is reduced when defrost operation is performed under an environment where the combustible refrigerant has leaked. SOLUTION: Since a refrigeration cycle using combustible refrigerant comprises juxtaposed coolers 23, 24 for refrigeration compartment and freezing compartment, temperature of a defrost means for the freezing compartment cooler 24 can be lowered and possibility of firing the combustible refrigerant can be reduced.
-
公开(公告)号：JP2001116419A
公开(公告)日：2001-04-27
申请号：JP30097799
申请日：1999-10-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： SHIMIZU TAKESHI , TANAKA MASAAKI , NISHIMURA KOICHI , YOKOYAMA NAOKI
Abstract: PROBLEM TO BE SOLVED: To prevent the deterioration of the freshness of an article to be stored in the case of leaking a combustible refrigerant in a refrigerator using the combustible refrigerant. SOLUTION: The refrigerator comprises a compressor 19, a condenser 20, a pressure reducing mechanism 21, and an evaporator 10 to be functionally connected, a refrigerating cycle for sealing a combustible refrigerant, a refrigerant leakage sensing means 16 and an alarming means 17 for alarming a fault by the signal from the means 16. In this case, when the means 16 detects leakage of the refrigerant, the compressor 19 is continuously operated, and hence a temperature rise in the refrigerator is suppressed as much as possible, and the deterioration of the freshness of the stored material is reduced.
-
公开(公告)号：JP2000121236A
公开(公告)日：2000-04-28
申请号：JP29826698
申请日：1998-10-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： SHIMIZU TAKESHI , TANAKA MASAAKI , NISHIMURA KOICHI , KAMISAKO TOYOSHI
Abstract: PROBLEM TO BE SOLVED: To defrost an evaporator quickly without leaving frost by stopping a fan for an arbitrary time before starting defrost operation of the evaporator through a defrost means. SOLUTION: During cooling operation, a microcomputer counts the integrated operating time of a compressor 20 using a function thereof, i.e., a timer, and makes a decision whether the integrated operating time of the counter has reached 8 hours. Upon elapsing 8 hours after previous defrost operation, the microcomputer makes a decision whether the inner temperature is lower than a set level. At a moment when the inner temperature drops below the set level, the fan 11 is stopped for an arbitrary time before starting defrost operation of the evaporator 10 thus enhancing defrost efficiency while eliminating frost.
-
Patent Agency Ranking
公开(公告)号：JPH109691A
公开(公告)日：1998-01-16
申请号：JP15786496
申请日：1996-06-19
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , KINO AKIHIRO , SHIMIZU TAKESHI
IPC: F25B1/00
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerating system for improving durability and reliability of a compressor and improving cooling capacity by reducing retention of refrigerating machine oil in an evaporator in the system wherein the oil and refrigerant are separated in two phases. SOLUTION: A refrigerant tube of an evaporator 4 is provided so that refrigerant flows from above to below, and a suction tube 8 to connect the evaporator 4 to a compressor 1, and the compressor 1 are installed below an outlet 9 of the evaporator 4 and refrigerating machine oil is returned from the evaporator 4 to the compressor 1 by means of gravity drop in addition to a force of the refrigerant in a flowing direction, the oil in the evaporator 4 increases its fluidity to be easy to be returned to the compressor 1, and retention amount of the oil of the evaporator 4 is reduced.
-
公开(公告)号：JPH08303907A
公开(公告)日：1996-11-22
申请号：JP10547595
申请日：1995-04-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , KINO AKIHIRO , SHIMIZU TAKESHI
Abstract: PURPOSE: To provide a refrigerating system which reduces the noise of the header for a refrigerating system wherein a refrigerator oil and refrigerant two-phase separate in the header. CONSTITUTION: A compressor, condenser, expanding mechanism, evaporator and header 5 are annularly connected, and a refrigerant and refrigerator oil 7 which does not have or have a small mutual solubility with the refrigerant are provided for a refrigerating cycle. For such a refrigerating cycle, to the header 5, the outlet side of the evaporator is connected to the top, and the header 5 is equipped with a suction piping 6 wherein the suction side of the compressor is inserted from the bottom, and a rising pipe 9 which stands up in the header 5. The rising pipe 9 has an opening 10 of which one end is opened to the bottom of the header 5, and the other end is opened at a level higher than the suction piping 6, for the constitution.
-
公开(公告)号：JPH08240392A
公开(公告)日：1996-09-17
申请号：JP4701495
申请日：1995-03-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , SHIMIZU TAKESHI , HYODO AKIRA
Abstract: PURPOSE: To shorten the time required to freeze by expediting freezing without reducing the efficiency of melting of a heat accumulator for sealing a heat accumulating material in the accumulator by laminating a heat accumulating unit having a cooler in contact with a freezing heat exchanging surface by opposing the protrusions of melting heat exchanging surfaces of the accumulator. CONSTITUTION: The heat accumulator comprise freezing heat exchanging surface 22 filled with latent heat heat accumulating material therein and with a flat one side, and a melting heat exchanging surface 23 of the uneven surface of the rear surface of the surface 22. The accumulator also comprises a damper 25 in which the part of the fluid suction side 24 is extended. The damper 25 is thicker at the surface 22 than the thickness of the surface 23, and bent inside at the surface 23. A heat accumulator unit 17 has opposed protrusions of the surface 23 of a heat accumulator 16, and the surface 22 of the accumulator 16 is brought into contact with the flat surface of the cooler 18. A heat insulation box 20 has a fluid suction inlet 26 and a fluid discharge outlet 27.
-
公开(公告)号：JPH074819A
公开(公告)日：1995-01-10
申请号：JP14461593
申请日：1993-06-16
Applicant: MATSUSHITA REFRIGERATION
Inventor： SHIMIZU TAKESHI , TANAKA MASAAKI , HYODO AKIRA
Abstract: PURPOSE:To provide a refrigerator capable of leveling power demand by accumulating the heat of electric power at night and shifting the heat to daytime service. CONSTITUTION:This refrigerator comprises a refrigeration cycle which connects a cooler 8 and a heat accumulator 31 having an accumulation material 32 inside in parallel or in series and a time control means 46 which time-controls a heat accumulating operation which accumulates heat on the heat accumulator 31 in an arbitrary time zone and heat accumulating and cooling operations which cool the inside of a refrigerator with the accumulated heat and an accumulation fan 39 which sends cooled air into the heat accumulator 31 and an air duct 55.
-
公开(公告)号：JP2002206849A
公开(公告)日：2002-07-26
申请号：JP2001368287
申请日：2001-12-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA MASAAKI , SHIMIZU TAKESHI , NISHIMURA KOICHI
Abstract: PROBLEM TO BE SOLVED: To reduce a danger of igniting a combustible refrigerant which may occur when defrosting is carried out under an environment with the leakage thereof at a refrigerator using the combustible refrigerant. SOLUTION: In a refrigerating cycle with a cooler 36 of a refrigerator compartment and a cooler 38 of a freezer compartment using the combustible refrigerant, a defrosting means 18 for the cooler 38 of the freezer compartment is provided and the temperature of the defrosting means 18 is set less than that causing the ignition of the combustible refrigerant thereby reducing the danger of igniting the combustible refrigerant.
-
-
-
-
-
-
-
-
-
Search Results
62
records
(took 0.02 seconds)
