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公开(公告)号：JPH0942820A
公开(公告)日：1997-02-14
申请号：JP19938495
申请日：1995-08-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： OHASHI YOSHINORI , TAKAYAMA KIYOSHI , OKAMOTO YASUYUKI , KOYANAGI EIJIRO , MAEDA KOJI
Abstract: PROBLEM TO BE SOLVED: To realize the stabilizing of preservation quality of foods with the homogenization of room temperature, the promotion of deodorizing action and a room lighting with higher design effect balanced simultaneously in a refrigerator provided with a fan for circulating room air within a force ventilation cooling type cold storage chamber. SOLUTION: This refrigerator is provided with an air circulation duct 26 provided vertically at an inner central part in the cold storage chamber, a fan 27 for air circulation provided at the lowest part in the duct, a deodorizing means 30 and a room illumination lamp 31 arranged on the lee side above the fan, an air circulation duct 26 and a chilled air discharge duct 23 provided vertically at both inner end parts thereof. The fan 27 for air circulation is operated at the stoppage of a compressor 22 and in a fixed time after the opening or closing of a door.
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公开(公告)号：JP2000304410A
公开(公告)日：2000-11-02
申请号：JP2000109378
申请日：2000-04-11
Applicant: MATSUSHITA REFRIGERATION
Inventor： OHASHI YOSHINORI , TAKAYAMA KIYOSHI , OKAMOTO YASUYUKI , KOYANAGI EIJIRO , MAEDA KOJI
Abstract: PROBLEM TO BE SOLVED: To contrive the stabilization of preserving quality of foods due to the averaging of indoor temperatures as well as the averaging of indoor illumination, in a forced ventilation cooling system refrigerating chamber. SOLUTION: Cold air discharging ducts 23 are arranged at both sides of rear surface in a refrigerating chamber 17 while an air circulation duct 26 for discharging air, sucked by an air circulating fan 27, into the refrigerating chamber, and an illumination cover 32, provided at the indoor side fore part of an indoor illuminating lamp 31, are arranged between the cold air discharging ducts 23. In this case, the cold air discharging ducts 23 are arranged in the same plane across a plurality of stages of racks 25. According to this method, the cooling temperature distribution in the vertical as well as the transverse directions are averaged while the distribution of illuminating degrees in the vertical direction is also averaged.
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公开(公告)号：JPH11211307A
公开(公告)日：1999-08-06
申请号：JP1528398
申请日：1998-01-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO
Abstract: PROBLEM TO BE SOLVED: To achieve a control to prevent the inducing of a burning trouble of a winding as caused by a rise in the temperature of a compressor even when a blower for the compressor which forcibly cools the compressor fails to rotate because of a trouble or the like. SOLUTION: When it is detected by a blower rotation detection means 17 and a blower rotation judging means 18 that a blower 7 for a compressor fails to rotate, after a rotation command is received according to an outside air temperature and an in-storage temperature, the temperature of a machine room 5 housing a compressor 6 is detected by a machine room temperature detecting means 22 and when a machine room temperature judging means 23 judges that the temperature of the machine room exceeds the specified first one, the compressor 6 is operated at a low speed. When the temperature of the machine room as judged by the machine room temperature judging means 23 exceeds the second one during the operation in the low speed rotation, the compressor 6 is stopped. It is judged by a number of revolutions of compressor judging means 25 whether the compressor 6 is in the normal rotation or in a low-speed rotation.
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公开(公告)号：JPH0777375A
公开(公告)日：1995-03-20
申请号：JP22174993
申请日：1993-09-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO , SUDA JUNICHI
IPC: F25D11/02
Abstract: PURPOSE:To prevent seizing trouble of a winding due to deterioration of a heat radiating performance of a rotary compressor by rotating a compressor blower at a high speed until an initial stop of the compressor during operation of the compressor after defrosting is finished by a controller of a refrigerator, and cooling the compressor. CONSTITUTION:Signals are input from a temperature sensor 3 and a defrosting temperature detector 4 to a microcomputer 22. Drive means 6 for operating a rotary compressor 5, drive means 8 for operating a blower 7 for the compressor, number-of-revolution control meant 23 for the blower 7 and drive means 10 for operating a defrosting heater 9 are connected to outputs of the microcomputer 22. The microcomputer 22 has a compressor integrating timer 11 for integrating to count a time of operating the compressor 5 and a defrosting end memory 24.
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公开(公告)号：JP2000304409A
公开(公告)日：2000-11-02
申请号：JP2000109379
申请日：2000-04-11
Applicant: MATSUSHITA REFRIGERATION
Inventor： OHASHI YOSHINORI , TAKAYAMA KIYOSHI , OKAMOTO YASUYUKI , KOYANAGI EIJIRO , MAEDA KOJI
Abstract: PROBLEM TO BE SOLVED: To stabilize the preserving quality of foods by averaging indoor temperatures, in a forced ventilation cooling system refrigerating chamber. SOLUTION: An air circulation duct 26 is provided at the central rear part in a refrigerating chamber 17 in a vertical direction and an air circulating fan 27 is provided at the lower part of the duct 26 to such air in the lower part of the chamber and discharge the same into the upper part of the chamber. Cold air discharging ducts 23 are arranged in a vertical direction at both sides of the rear part in the refrigerating chamber 26 with a predetermined space between the air circulating duct 26 whereby the cooling temperature distributions in the vertical and transverse directions in the chamber are averaged.
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Patent Agency Ranking
公开(公告)号：JPH0712445A
公开(公告)日：1995-01-17
申请号：JP15193893
申请日：1993-06-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO
IPC: F25D11/00
Abstract: PURPOSE:To prevent a trouble of seizure of a winding caused by a deterioration of thermal radiation of a rotary compressor by a method wherein a blower for the compressor is rotated at a high speed in the case that a temperature within the refrigerator is particularly high under an operation of a control device of the refrigerator so as to cool the rotary compressor. CONSTITUTION:A temperature sensor 3 and a surrounding air temperature sensor are comprised of a driving means 6 inputted to a micro-computer 19 so as to operate a rotary compressor 5; a driving means 8 for operating a blower 7 for the compressor; and a control device 18 to which output is connected each of control means for controlling the number of rotations of the blower 7 for the compressor.
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公开(公告)号：JPH06300420A
公开(公告)日：1994-10-28
申请号：JP8714093
申请日：1993-04-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO , SUDA JUNICHI , YAMAMOTO OSAMU
Abstract: PURPOSE:To prevent a rotary compressor from failing due to the burning of winding resulting from the deteriorated heat radiating performance of the rotary compressor by rotating a compressor blower at a high speed so as to cool the rotary compressor when the temperature in a machine chamber is particularly high, in a control apparatus for a refrigerator. CONSTITUTION:The tile apparatus is provided with a microcomputer 19 to the input side of which a temperature detector 3 for detecting the outside temperature and a temperature detector 21 for detecting the temperature in a machine chamber are connected. A driving means 6 for operating a rotary compressor 5, a driving means 8 for operating a compressor blower 7 and a rotational speed control means 20 for controlling the compressor blower 7 are respectively connected to the output side of the microcomputer 19. When the temperature in the machine chamber is especially high, the compressor blower 7 is rotated at a high speed in order to cool the rotary compressor 5.
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公开(公告)号：JPH08114375A
公开(公告)日：1996-05-07
申请号：JP25041294
申请日：1994-10-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO , YAMAMOTO OSAMU
IPC: F25D11/02
Abstract: PURPOSE: To prevent the seizing fault of a winding due to the deterioration of the radiating performance of a rotary compressor by rotating a blower for the compressor at a high speed to cool the compressor when the operating efficiency of the compressor is high. CONSTITUTION: A controller 19 comprises driving means 6 for operating a rotary compressor 5 upon inputting the output of a temperature sensor 3 to a microcomputer 19, driving means 8 for operating a blower 7 for the compressor, a compressor ON timer 21 connected at its output to number-of-revolutions control means 20 of the blower 7 to integrate to count the time when the compressor 5 is operated in the microcomputer 19, and a compressor OFF timer 22 for integrating to count the time when the compressor 5 is stopped.
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公开(公告)号：JP2002267310A
公开(公告)日：2002-09-18
申请号：JP2001064611
申请日：2001-03-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator having a controller for detecting the generation of clogging of a filter provided in a machine chamber of the refrigerator due to dust. SOLUTION: The controller for the refrigerator comprises a fan current detecting means 22 for a compressor and a fan current deciding means 23 for a compressor. When the clogging of the filter is generated, the current value of a fan 19 for the compressor increases. Thus, when the current value of the fan 19 for the compressor is a setting value or higher, the clogging of the filter can be detected.
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公开(公告)号：JPH08247624A
公开(公告)日：1996-09-27
申请号：JP5439995
申请日：1995-03-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOYANAGI EIJIRO , YAMAMOTO OSAMU
Abstract: PURPOSE: To prevent a misjudgement on an abnormal state of a defrosting heater from occurring by a method wherein it is judged whether the temperature detected and cumulative time counted are respectively the specified temperature and specified period of time or not, temperatures detected by a defrosting heater sensor are neglected for a specified period of time while a door timer counts time, and an alarm issues a warning when a defrosting heater is in an abnormal state. CONSTITUTION: A defrosting temperature judging device 22 judges whether or not the temperature detected and the cumulative time counted by a defrosting timer 23 are the specified temperature and specified hour respectively or not, and an alarm judging device 24 neglects temperatures detected by a defrosting heater sensor 12 for a specified time period while a door timer 28 counts time. An alarm 25 issues a warning when an alarm 26 and a defrosting heater 11 are in an abnormal state. Thereby, a user is given a warning against such a trouble in advance that defrosting operation lasts for a long period of time and refrigerating operation is not performed so that a refrigerator is in non-refrigerated state and foods in the refrigerator are in a risk of going rotten, and it is prevented that the defrosting heater 11 is misjudged to be in an abnormal state when temperatures detected by the defrosting heater sensor 12 rises due to opening and closing of a door.
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