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公开(公告)号：AU3606701A
公开(公告)日：2002-05-21
申请号：AU3606701
申请日：2001-03-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： YUASA MASASHI , UEMURA SHUZO , YAMADA HIROSHI , FUKUI HIDEKI , HAMANO YASUKI , YOKOYAMA NAOKI
Abstract: Respective evaporators are set to a proper value in evaporation temperature and the efficiency in refrigeration cycle is enhanced, resulting in a reduction of energy consumption. A refrigerating unit and a refrigerator comprise a compressor, a condenser, a plurality of evaporators connected in series, a refrigerant flow rate adjustable unit and a refrigerant, thereby constituting a refrigeration cycle. The refrigerant flow rate adjustable unit controls each respective evaporation temperature of the plurality of evaporators. Preferably, the refrigeration unit further comprises a bypass circuit bypassing at least one of the plurality of evaporators and, when needs arise, the refrigerant is channeled through the bypass circuit. The refrigerant flow rate adjustable unit controls a flow rate of the refrigerant such that an evaporation temperature of the respective evaporators located at the upstream side of the refrigeration cycle is made higher than an evaporation temperature of the respective evaporators located at the downstream side thereof.
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公开(公告)号：EP1344997A4
公开(公告)日：2005-11-16
申请号：EP01908271
申请日：2001-03-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： YUASA MASASHI , KAMIMURA SHUZO , YAMADA HIROSHI , FUKUI HIDEKI , HAMANO YASUKI , YOKOYAMA NAOKI
CPC classification number: F25B5/04 , F25B5/00 , F25B2700/2117 , F25D11/022 , F25D17/065 , F25D29/00 , F25D2317/0682 , F25D2400/04 , F25D2400/30 , F25D2700/12 , F25D2700/122
Abstract: The respective evaporators have proper evaporation temperatures to improve the freezing cycle efficiency, resulting in the reduction of energy consumption. The freezer and refrigerator are provided with a compressor, a condenser, a plurality of series-connected evaporators, a refrigerant flow rate changing device, and a refrigerant, these forming a refrigerating cycle. The refrigerant flow rate changing device controls respective evaporation temperatures for the plurality of evaporators. Desirably, the freezer further includes a bypass circuit which bypasses at least one evaporator, and the refrigerant passes through the bypass circuit as needed. The refrigerant flow rate changing device controls the flow rate of the refrigerant such that the evaporation temperatures for the evaporators positioned on the upstream side of the refrigerating cycle are higher than those for the evaporators positioned on the downstream side.
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公开(公告)号：JP2000337752A
公开(公告)日：2000-12-08
申请号：JP14795399
申请日：1999-05-27
Applicant: MATSUSHITA REFRIGERATION
Inventor： KAWASAKI TATSUYA , NOMOTO YOHEI , YUASA MASASHI , NAKANISHI KAZUYA , KAMIMURA SHUZO
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator improved in the heat exchange efficiency of a machine room by the configuration of an air duct structure and a component of the room. SOLUTION: The machine room is divided into an air suction duct 57 side and an air exhaust duct 58 side by a partition plate 55. A finned condenser 36 and an evaporating tray 39 are disposed at the duct 57 side. A compressor 34 is disposed at the duct 58 side. An atmosphere input from one side of a front surface of the room 22 is fed to the duct 58 by a forced ventilation blower 41 through the duct 57. Thus, the room air duct for discharging exhaust heat of the front surface of the room 33 to the other side is formed so that the exhaust heat is not obstructed irrespective of the installing conditions of the refrigerator.
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Patent Agency Ranking
公开(公告)号：JP2002147917A
公开(公告)日：2002-05-22
申请号：JP2000343294
申请日：2000-11-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： YUASA MASASHI , KAMIMURA SHUZO , YAMADA HIROSHI , FUKUI HIDEKI , HAMANO YASUKI , YOKOYAMA NAOKI
Abstract: PROBLEM TO BE SOLVED: To provide highly efficient refrigerating equipment and a refrigerator provided with the equipment, in which evaporation temperatures of a plurality of evaporators can be variably controlled, temperature variation in a cooling chamber is small. SOLUTION: A refrigerating cycle is constituted by providing a compressor 301, a condenser 302, a first evaporator 304 and a second evaporator 305 connected serially to each other, a refrigerant flow variable controller 306 such as a motorized expansion valve provided between the evaporators 304 and 305. Further, a bypass circuit 307 bypassing the evaporator 304 and the variable controller 306 is provided in the refrigerating cycle. Evaporation temperatures of the evaporators 304 and 305 are variably controlled by the controller 306. As required, the evaporator 304 is bypassed to optimize the cooling amount of the evaporators 304 and 305 to improve the efficiency of the refrigerating equipment and the storing quality of objects to be cooled.
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公开(公告)号：JP2001153477A
公开(公告)日：2001-06-08
申请号：JP34307999
申请日：1999-12-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： FUKUI HIDEKI , YAMADA HIROSHI , KAMIMURA SHUZO , YUASA MASASHI
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of a heat loss due to a high-temperature refrigerant flowing in an evaporator when the operation of a compressor is stopped. SOLUTION: A refrigerating plant is provided with a compressor 21, a condenser 22, and a plurality of evaporators 25 and 26 which are connected in series. The plant is also provided with a pressure reducing device 24 having a fully closing function between the condenser 22 and the front evaporator 25. When the operation of the compressor 21 is stopped, therefore, the temperature fluctuations in first and second cooling chambers 30 and 31 can be reduced and, at the same time, energy conservation can be devised economically by preventing the high-temperature refrigerant left in the condenser 22 from flowing in the evaporators 25 and 26 by fully closing the pressure reducing device 24.
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公开(公告)号：JP2001133112A
公开(公告)日：2001-05-18
申请号：JP31923999
申请日：1999-11-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： YUASA MASASHI , KAMIMURA SHUZO , YAMADA HIROSHI , FUKUI HIDEKI
IPC: F25D11/02
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator having a plurality of evaporators in which high storage quality of food is ensured through freezing cycle exhibiting high cooling efficiency. SOLUTION: A compressor 51, a condenser 52, a capillary tube 53, a first evaporator 48 in a refrigeration compartment 46, and a second evaporator 49 in a freezing compartment 47 are coupled in series to constitute a refrigeration cycle. A refrigerant flow rate varying unit 50 is disposed between the first evaporator 48 and the second evaporator 49 and the difference between the room temperature and the evaporation temperature is reduced by controlling the evaporation temperature of the first evaporator 48 and the second evaporator 49 variably. According to the arrangement, efficiency of the refrigeration cycle is enhanced and storage performance of foods is enhanced by suppressing room temperature variation or dehumidifying function.
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公开(公告)号：JP2001108319A
公开(公告)日：2001-04-20
申请号：JP28558099
申请日：1999-10-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： KAMIMURA SHUZO , YAMADA HIROSHI , YUASA MASASHI , FUKUI HIDEKI
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator capable of variably controlling evaporating temperatures of a plurality of evaporators and having a small temperature change in a cooling chamber and high efficiency. SOLUTION: The refrigerator comprises a compressor 21, a condenser 22, a first evaporator 24 and a second evaporator 25 connected in series to constitute a refrigerating cycle having at least a refrigerant flow varying unit 26 provided between the evaporator 24 and the evaporator 25. In this case, evaporating temperatures of the evaporator 24 and the evaporator 25 are variably controlled by the unit 26, thereby optimally controlling the temperatures of the evaporator 24 and the evaporator 25 and a refrigerant circulating amount. Thus, a temperature change of an object to be cooled can be reduced, and an efficiency of the refrigerator is improved.
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公开(公告)号：JPH112485A
公开(公告)日：1999-01-06
申请号：JP15630797
申请日：1997-06-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： YUASA MASASHI
Abstract: PROBLEM TO BE SOLVED: To achieve antidew effect by providing a groove in front parts of upper and lower faces of a partition plate along an almost whole length of the partition wall and fitting a tabular partition plate front face cover in the groove. SOLUTION: A partition wall front face cover 18 is fit and fixed in a groove 17a in front parts of upper and lower faces of a partition plate 17 and then sizes of a partition wall front part wall 17b and the partition wall front face cover 18 are fixed, contact variation between a high pressure side refrigerant pipe 10 and the partition wall front face cover 18 is alleviated and heating effect of the high pressure side refrigerant pipe 10 by operation of a refrigerator main body prevails in a part of the partition wall front face cover 18 exposed to outside air in a state wherein variation due to respective refrigerators is small. Because the partition wall front face cover 18 is partially covered with the grooves 17a in the upper and lower face front parts of the partition wall, contact area between the partition wall front face cover 18 made of a metal and cooled air in a freezing chamber and a refrigeration chamber is reduced so that heat of the high pressure side refrigerant pipe 10 produced by operation of the refrigerator main body has a low possibility of leaking into the freezing chamber and the refrigerating chamber.
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