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公开(公告)号：JP2003207247A
公开(公告)日：2003-07-25
申请号：JP2002370368
申请日：2002-12-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIMURA YOSHITO , SHIMOMURA NOBUO , HAMANO YASUKI , SAITO TETSUYA
Abstract: PROBLEM TO BE SOLVED: To reduce a refrigerant quantity, and to enhance efficiency in a cooling cycle using a combustible refrigerant. SOLUTION: A closed loop is formed of a capacity variable compressor 12, a condenser 2, a passage control means 13, a first pressure reducing means 7, and a first evaporator 3. A second pressure reducing means 8 and a second evaporator 5 are connected so as to become parallel to the first pressure reducing means 7 and the first evaporator 5. Since cooling capacity is adjusted by compressor capacity according to a load by performing cooling by alternately switching the two evaporators 3 and 5 by the cooling cycle for arranging the passage control means 13 on the inlet side of the first pressure reducing means 7 and the second pressure reducing means 8, pipe capacity of a cooling system and the refrigerant quantity can be reduced more than a cooling system for performing cooling by one evaporator and a cooling system for performing cooling by flowing the refrigerant in parallel to a plurality of evaporators. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2000230768A
公开(公告)日：2000-08-22
申请号：JP3094799
申请日：1999-02-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： SAITO TETSUYA , KIMURA YOSHITO , HAMANO YASUKI
Abstract: PROBLEM TO BE SOLVED: To contrive the reduction of amount of refrigerant for a cooling system as well as the improvement of efficiency of the cooling system by switching the cooling of a refrigerating chamber and a freezing chamber. SOLUTION: In a refrigerator, a closed loop is formed of a compressor 1, a condenser 2, a first flow passage control means 10, a first capillary 7 and a first evaporator 3 while a second flow passage control means 11, a second capillary 8, a second evaporator 5 and a non-return valve 20 are connected in parallel to a first flow passage control means 10, the first capillary 7 and the first evaporator 3, to switch the flow of refrigerant by the first and second flow passage control means. When the cooling of a freezing chamber 6 is switched into the cooling of the refrigerating chamber 4, the compressor 1 is operated under a condition that both of the first and second flow passage control means are closed for a predetermined period of time and, thereafter, the cooling of the refrigerating chamber 4 is started. According to this method, the refrigerant, stayed in the second evaporator 5, can be purged quickly to the side of the compressor 1 whereby the refrigerating chamber 4 can be cooled efficiently.
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公开(公告)号：JPH10292979A
公开(公告)日：1998-11-04
申请号：JP10139197
申请日：1997-04-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： KANEOKA SHINICHI , NODA TOSHINORI , HAMANO YASUKI
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator with less amount of adhesion of frost in a cooler by uniformly maintaining a humidity distribution in the refrigerator, preventing dew formation, and reducing the amount of humidification. SOLUTION: A humidification equipment 8 is installed in a discharge duct 21, a discharge duct 21 with a duct length for setting a temperature to 0 deg. or higher is constituted by performing heat exchange with an air in the refrigerator in the discharge duct 21 until a cool air at 0 deg.C or less from the refrigerator 6 reaches the humidification equipment 8, and a humidity also required at a cool air discharge part 20 can be obtained by arranging the humidifier 8 at the position of a cool air temperature at 0 deg.C or higher, thus maintaining the inside of the refrigerator 2 at a uniform humidity and preventing freezing and dew formation at and near the humidification equipment 8.
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公开(公告)号：JPH10292978A
公开(公告)日：1998-11-04
申请号：JP10139097
申请日：1997-04-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： NODA TOSHINORI , KANEOKA SHINICHI , HAMANO YASUKI
Abstract: PROBLEM TO BE SOLVED: To maintain the inside of a refrigeration room at a uniform temperature since a required humidity cannot be obtained at a cool air discharge part from a cooler. SOLUTION: A humidifying equipment 8 is installed at the downstream side of a cool air flow for a cooler 6 and the amount of humidification is controlled by a humidity sensor 12 being provided near a refrigerator suction port 13 that cannot be easily affected by external air and door opening/closing, so that the humidity can be controlled accurately to the minimum and the inside of the refrigeration room can be maintained at a uniform humidity. Therefore, dew formation can be prevented and the amount of humidification can be reduced, thus reducing the amount of frost being adhered to the cooler and preventing a cooling efficiency from decreasing due to the adhesion of frost and preventing a loss due to dehumidification.
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公开(公告)号：JPH10185394A
公开(公告)日：1998-07-14
申请号：JP34729196
申请日：1996-12-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMANO YASUKI , NODA TOSHINORI , KANEOKA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To provide a cold air forced circulated indirect cooling type freezer refrigerator in which waste consumption of power or noise caused by a structure in the refrigerator and a cooling control system is reduced and a freshness holding characteristic of foodstuffs is improved. SOLUTION: This freezer and refrigerator is constructed such that communication holes 20, 21 communicating with upper space and lower space of a freezing chamber 1 and a cooling device 4 are formed and bypassing spaces 22, 23 are formed at both upper and lower sections of the cooling device 4, a blower fan 8 is operated in response to a temperature of a refrigerator chamber 2 and the blower fan 8 is not operated during a stopped state of a compressor 5. With such an arrangement as above, power saving, low noise and freshness preservation of foodstuffs are improved while a temperature in the refrigerator is being kept at the most suitable value under utilization of natural convection flow of cold air.
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Patent Agency Ranking
公开(公告)号：JPH1038449A
公开(公告)日：1998-02-13
申请号：JP19723196
申请日：1996-07-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： KANEOKA SHINICHI , NODA TOSHINORI , HAMANO YASUKI
IPC: F25D19/00
Abstract: PROBLEM TO BE SOLVED: To conserve energy by forming a bypass space between the front of a cooler and a cooler cover while the whole width of the upper end face of the bypass space is closed to restrict a rise in the temperature of foods in a storage. SOLUTION: A bypass space 24a is formed between the front of a cooler 6 and a cooler cover 7 while the whole width of the upper end part 25 of the bypass space 24a is closed. Therefore, cooling is possible at an upper part of the cooler 6 even when a lower part of the cooler 6 is clogged by frosting to allow cooling continuously until the clogging of the upper part of the cooler 6 occurs thereby enabling the prolongation of the defrosting interval. Moreover, the prolonged defrosting interval can minimize the frequency of energizing a defrosting heater to restrict the rise in the temperature of foods within a storage thereby enabling saving of energy. The same effect can be obtained when the bypass space 24a is formed between the rear side of the cooler 6 and an inner case 2. The same effect also can be obtained by forming the bypass space 24a on the front and rear sides of the cooler 6.
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公开(公告)号：JPH102658A
公开(公告)日：1998-01-06
申请号：JP15396996
申请日：1996-06-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMANO YASUKI , NODA TOSHINORI , KANEOKA SHINICHI
Abstract: PROBLEM TO BE SOLVED: To perform a controlling operation and save energy in such a way that refrigerant of high temperature is flowed from a high pressure side into an evaporator after stopping in operation of a compressor, a defrosting heater is not operated while a temperature of an evaporator is being rapidly increased and the defrosting operation is completed unless frosting is almost generated at the evaporator and then the operation returns to a normal cooling operation. SOLUTION: This device is comprised of a temperature sensing means 17 attached to an evaporator 3 in a thermal contacted manner and a temperature variation amount calculating means 18 for calculating a temperature changing amount. A defrosting heater is not operated during a time in which refrigerant of high temperature is flowed from a high pressure side into an evaporator 3 after stopping of operation of a compressor 12 so as to make a rapid increasing of temperature at the evaporator 3, the defrosting operation is released only at the time of starting defrosting operation and only when a temperature changing amount after elapsing a specified period of time upon starting of the defrosting operation is larger than a predetermined value and it is controlled in such a way that the operation may become a normal cooling operation mode.
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公开(公告)号：JPH09145214A
公开(公告)日：1997-06-06
申请号：JP30256795
申请日：1995-11-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUBOTA YOSHITAKA , KAMITSUJI TOSHIO , ODA MASATAKA , NODA TOSHINORI , MORISHITA KENICHI , HAMANO YASUKI , KANEOKA SHINICHI , ENDO KATSUMI , KURIMOTO KAZUNORI
IPC: F25D11/00
Abstract: PROBLEM TO BE SOLVED: To keep a condensation temperature constant by detecting the temperature of a condenser, which condenses a refrigerant compressed by a compressor to radiate heat outside a refrigerator, with a condenser sensor to control the number of revolutions of a blower fan. SOLUTION: A condensation temperature detection means 7 detects a condensation temperature during the operation of a condenser 4 by a condenser sensor 6 provided in a condenser 5 and a detection temperature (T) is compared with a set temperature (Ts) of a condensation temperature setting means 9 by a condensation temperature comparison means 8. When T>=Ts, an operation command is transmitted to a blower fan control means 10 to operate a blower fan 11 and when T
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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：JPH07127962A
公开(公告)日：1995-05-19
申请号：JP27411193
申请日：1993-11-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMANO YASUKI , KAMITSUJI TOSHIO , UMEOKA IKUTOMO , TADA YOSHITAKA
Abstract: PURPOSE:To ensure high rigidity of a hot plate and prevent the hot plate from resonating by providing a compressor mounting plate for supporting a compressor, and further providing a reinforcing plate in a direction substantially perpendicular to one side of the hot plate that forms a connection part connected with the compressor mounting plate. CONSTITUTION:A vibration damping structure is formed with a compressor mounting plate 1 for supporting a compressor 5, a hot plate 2 including a connection part formed on one side thereof for connection to the compressor mounting plate 1, and a reinforcing plate 9 that extends in a direction substantially perpendicular to one side of the hot plate 2 where the connection part of the hot plate 2 is formed, and fixing opposite ends thereof and portions yielded by dividing substantially by four an interval between the opposite ends of the hot plate 2. Hereby, high rigidity of the hot plate 2 is ensured, and any vibration is damped by a damping effect with friction of contact portions between the hot plate 2 and time fixed portions of the reinforcing plate 9, whereby any vibration and noise of a refrigerator is prevented from being increased owing to resonance of the hot plate.
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