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公开(公告)号：JPH11237166A
公开(公告)日：1999-08-31
申请号：JP3840698
申请日：1998-02-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： KANEOKA SHINICHI , ASAKAWA OSAMU , SAITO TETSUYA
Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator having good responding performance when switching from a cooler for a freezing room to a cooler for a refrigerating room by compactly installing a refrigerant control device. SOLUTION: By providing a space 14 for gathering liquid at the lower part in the opposite direction of a valve driving part of a large volume, a refrigerant control device 5 can be installed compactly. When a valve is opened, gas refrigerant flows upward, a liquid refrigerant quickly moves upward by the shearing force generated by the flow velocity thereof, so that it is possible to provide a refrigerating system having good responding performance when switching from a cooler for a refrigerating room to a cooler for a freezing room.
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公开(公告)号：JPH1026461A
公开(公告)日：1998-01-27
申请号：JP18035796
申请日：1996-07-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： KANEOKA SHINICHI , NODA TOSHINORI , HAMANO YASUKI
Abstract: PROBLEM TO BE SOLVED: To permit energy saving and retaining high-quality freshness of food by a method wherein the frost deposit condition of an evaporator is decided by the temperature of the evaporator and when the amount of deposited frost is small, defrosting is finished at that time and the operation is controlled so as to return usual cooling operation, however, the operation is not introduced into defrosting mode and the cooling operation is effected successively when the frost is not deposited to the evaporator substantially. SOLUTION: A freezing refrigerator is constituted of a temperature detecting means 17, attached to the evaporator 3 of a cooling system through thermal contact, and a temperature changing rate operating means 18, operating the changing rate of temperature based on the output of the temperature detecting means 17. The freezing refrigerator is controlled so as to be released from defrosting operation and introduced into a normal cooling operation mode only when the changing rate of temperature during defrosting is higher than a preset value while normal defrosting operation is effected when there is a possibility of mistaken detection of the amount of deposited frost.
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公开(公告)号：JPH09113087A
公开(公告)日：1997-05-02
申请号：JP27268395
申请日：1995-10-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： MORISHITA KENICHI , ODA MASATAKA , KURIMOTO KAZUNORI , HAMANO YASUKI , NODA TOSHINORI , KUBOTA YOSHITAKA , ENDO KATSUMI , KANEOKA SHINICHI , KAMITSUJI TOSHIO
Abstract: PROBLEM TO BE SOLVED: To reduce the thermal load of a compressor by so controlling to vary the number of revolutions of a fan motor for cooling the compressor when the temperature of a discharge tube rises. SOLUTION: The indoor temperature input to control means 12 is compared with a set temperature, and the number of revolutions of a fan motor for cooling a compressor is decided. Then, the output of discharge tube temperature detecting means 11 is input by the input terminal 15 of the control means 12. Whether the discharge tube temperature is a predetermined value or not is judged, and if it is the predetermined value or more, the number of revolutions of the motor for cooling the compressor is altered, while if it is less than the predetermined value, the alteration of the number of revolutions of the motor for cooling the compressor is released. Then, the decided number of revolutions of the motor for cooling the compressor is output, and then whether the defrosting operation is started or not is judged. If the defrosting operation is started, the output of a compressor rotation command from the output terminal 01 is set to '0' rotation, and the rotation command of the motor for cooling the compressor from the output terminal 01 is set to '0' rotation. A relay 8 is turned ON to supply a current to a heater 9.
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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：JPH10185395A
公开(公告)日：1998-07-14
申请号：JP34729296
申请日：1996-12-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： KANEOKA SHINICHI , NODA TOSHINORI , HAMANO YASUKI
Abstract: PROBLEM TO BE SOLVED: To reduce electric energy consumption and noise by a method wherein the operation of a compressor is started when a refrigerating chamber temperature is higher than a cut-on temperature while the operation of a ventilating fan is started, only when the refrigerating chamber temperature is higher than the cut-on temperature and the compressor is operated. SOLUTION: In case of operation of a freezing refrigerator, the operation of a compressor is started by a control unit 13 when a freezing chamber temperature, detected by a temperature detecting means 12, has become higher than a set temperature (cut-on temperature) and is stopped when the same temperature has become lower than the set temperature, whereby a temperature in a refrigerator is maintained at a given temperature. However, the operation of a ventilation fan 8 is not synchronized with the on/off of the compressor 5 and the operation of the fan 8 is started only when a refrigerating chamber temperature is higher than a set temperature tp1, and the operation is continued until the temperature becomes lower than tp2 while the fan 8 is controlled so as not to be operated when the compressor is stopped and, thus, the temperature of the refrigerating chamber is maintained constant. Thus, wasteful operation of the ventilating fan 8 is restrained to contrive electricity-saving and the reducing of noise.
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Patent Agency Ranking
公开(公告)号：JPH09145215A
公开(公告)日：1997-06-06
申请号：JP30544295
申请日：1995-11-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURIMOTO KAZUNORI , NODA TOSHINORI , KUBOTA YOSHITAKA , KANEOKA SHINICHI , KAMITSUJI TOSHIO , HAMANO YASUKI , MORISHITA KENICHI , ODA MASATAKA , ENDO KATSUMI
IPC: F25D11/00
Abstract: PROBLEM TO BE SOLVED: To enable restricting of a temperature rise in an inverter device by performing a high-speed operation of a fan motor for a compressor with a second inverter when a first inverter reaches a high temperature and is determined to exceed a specified temperature by a first comparator means. SOLUTION: When a compressor is operated in an operation pattern, the temperature (t) of an inverter device 4 as detected by an inverter temperature detection means 7 is compared with a first set value (T1), an allowable temperature value with a little allowance, of the inverter device 4 by a first comparator means 8. When T1
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公开(公告)号：JPH0989445A
公开(公告)日：1997-04-04
申请号：JP24726595
申请日：1995-09-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： NODA TOSHINORI , KANEOKA SHINICHI , HAMANO YASUKI
IPC: F25D21/08
Abstract: PROBLEM TO BE SOLVED: To eliminate the waste of power for energizing a heater and the wasteful energy consumption to cool the heat generation in the defrosting control of a refrigerator with freezer, and to prevent the adverse effect in keeping the food fresh when the temperature of the food rises. SOLUTION: A refrigerator with freezer comprises a temperature detecting means 17 which is fitted to an evaporator 3 of the cooling system in a thermally contacted manner and a temperature change rate operating means 18 to operate the temperature change rate based on the output from the temperature detecting means 17, and the defrosting is released only when the temperature change rate when the defrosting is started and after the prescribed period of time is larger than the preset value to control so as to realize the normal cooling mode.
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公开(公告)号：JPH0988889A
公开(公告)日：1997-03-31
申请号：JP24007495
申请日：1995-09-19
Applicant: MATSUSHITA REFRIGERATION , MATSUSHITA ELECTRIC WORKS LTD
Inventor： NODA TOSHINORI , SUZUKI SOUZOU , HAMANO YASUKI , KUBOTA YOSHITAKA , KANEOKA SHINICHI , MIZUSHIMA TAKEFUMI , FUKUNAGA HIDEO
Abstract: PROBLEM TO BE SOLVED: To improve the heat exchanging efficiency by arranging a blower consisting of an axial flow fan composed of an impeller in which a plurality of blades of prescribed shape are provided around a hub and an orifice ring provided on the outer circumference of the impeller on the upstream side of the air flow of a condenser to reduce the air flow escaping around the condenser. SOLUTION: A blower arranged on the upstream side of the air flow of a condenser of a refrigerator is provided with an impeller 55 in which three blades 1 are radially provided around a hub 5, and the line to connect 0 to R2 is at the advanced position in the rotational direction of the impeller 55 relative to the line to connect 0 and R1 where R1 is the center in the circumferential direction of a joined part 2 of the blades 1 with the hub 5, R2 is the center in the circumferential direction of an outer circumferential part 3 of the blades 1, and 0 is the center of rotation of the blades 1. The line P to connect R1 to R2 is inclined toward the suction side relative to the axis L of rotation passing through R1 and the perpendicular plane S, and the inclination to the suction side of the blades 1 on the trailing edge side from the line P is gradually reduced to form the blades 1.
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公开(公告)号：JPH08285440A
公开(公告)日：1996-11-01
申请号：JP9332195
申请日：1995-04-19
Applicant: MATSUSHITA REFRIGERATION
Inventor： KANEOKA SHINICHI , NODA TOSHINORI
Abstract: PURPOSE: To change over a defrosting method according to a defrosting load when a cooling system is in an OFF state and reduce power supply to a heater by carrying out defrosting with a heat load in a refrigerating chamber while preventing cold air in a freezing chamber from circulating to operate a cooling fan when a defrosting load is low, and carrying out defrosting with the heater when a defrosting load is high. CONSTITUTION: A cooling system comprises a cold air circulation controlling means 21 for controlling the circulation of cold air to a freezing chamber 18, a cold air blowing means 10 for blowing cold air cooled by an evaporator and a defrosting load detecting means for detecting a defrosting load. In the case where the cooling system is in an OFF state, the inflow of cold air is prevented by the cold air circulation controlling means 21 in the freezing chamber, thereupon the cold air blowing means 10 is operated when a defrosting load detected by the defrosting load detecting means is high, while power is supplied to a defrosting heater 6 when a defrosting load is low.
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公开(公告)号：JPH08285438A
公开(公告)日：1996-11-01
申请号：JP9067395
申请日：1995-04-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMANO YASUKI , NODA TOSHINORI , ONISHI YASUTOMO , YAMAMOTO HARUYOSHI , MORISHITA KENICHI , KANEOKA SHINICHI , KUBOTA YOSHITAKA
Abstract: PURPOSE: To prevent the short-circuit of air convection and secure the high heat-exchanging characteristics of a condenser. CONSTITUTION: A machine chamber 2 is divided by an outer case bottom plate and a mounting plate at a lower rear portion of a refrigerator main body 1, and an aft air inlet port 8a and air outlet ports 8b are provided through a cover 8 of the machine chamber 2. A shielding plate 15, which is suspended to a floor face in a widthwise direction of the refrigerator main body 1 from the end of the mounting plate on the side of the air outlet ports 8b to the end of a fore air inlet port 9, is provided on the mounting plate side at the abutment part of the outer case bottom plate against the mounting plate, while a member, which is suspended to the floor face from the forward and backward direction of the mounting plate on the upstream side of the air outlet ports 8b and which abuts against the shielding plate 15, is provided on the mounting plate.
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