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公开(公告)号：JPH10153371A
公开(公告)日：1998-06-09
申请号：JP31165796
申请日：1996-11-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO , IWAI HARUHIKO , NAKANE HIDEKI
IPC: F25D11/02
Abstract: PROBLEM TO BE SOLVED: To prevent the breaker of home electric wiring from tripping by driving one of freezer compressor or refrigerator compressor with a DC power supply and the other with a commercial power supply thereby preventing an undue overcurrent from flowing through a freezer refrigerator at the time of simultaneous start. SOLUTION: A compressor 3 being driven with a DC power supply is employed for a freezer and a compressor 4 being driven with a commercial power supply, is employed for a refrigerator. A current about ten times as high as steady current flows into the compressor 4 for refrigerator at the time of starting but the compressor 3 for freezer can be started without requiring an undue overcurrent. Consequently, even when two compressors 3, 4 are started simultaneously, starting current for the freezer refrigerator is substantially equal to the starting current of the compressor being driven with the commercial power supply. Since an undue overcurrent does not flow through the freezer refrigerator at the time of starting, possibility of tripping the breaker of home electric wiring can be reduced.
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公开(公告)号：JPS62245075A
公开(公告)日：1987-10-26
申请号：JP9065886
申请日：1986-04-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO
IPC: F25D29/00
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公开(公告)号：JPH1054638A
公开(公告)日：1998-02-24
申请号：JP21097496
申请日：1996-08-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To average temperature distribution in the horizontal direction of each stage and the vertical direction of the same by distributing cold air from opposite ends of the deepest face of each stage and cooling preferentially the opposite ends which become high in temperature distribution, and exchanging upper and lower airs with stirring action of an air circulation fan. SOLUTION: Temperature in a freezing chamber 18 is detected, and when detected temperature is higher than on-set temperature, a compressor is operated, and when cumulative operation time of the compressor is within a predetermined time, an air circulating fan 30 is operated. It is judged whether temperature in a freezing chamber 17 is higher or lower than opening/closing set temperature, and when the temperature in the freezing chamber 17 is higher than the opening set temperature, a damper 25 is opened, cold air cooled through a condenser 20 is discharged from a cold, air discharge hole 44 located in the vicinity of opposite ends of each stage in the refrigeration chamber 17 through a cold air discharge duct 24 to average temperature in left and right directions of each stage. The cold air is circulated after passage through the air suction hole 31 and the discharge hole 32 with the operation of the fan 30 so that vertical temperature is averaged.
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公开(公告)号：JPH1026443A
公开(公告)日：1998-01-27
申请号：JP18035596
申请日：1996-07-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO
IPC: F25B43/00
Abstract: PROBLEM TO BE SOLVED: To minimize a violent agitation phenomenon of a refrigerator oil during the starting time of a compressor and reduce the generation of abnormal sound by providing an accumulator flow-out pipe on the upper part of an accumulator. SOLUTION: When a compressor 1 is stopped, a refrigerator oil 11 is accumulated in an accumulator 8 by flowing backward in a suction pipe 10. As a result, the refrigerator oil 11 is accumulated in the lower part of the accumulator 8 while gasified refrigerant is accumulated in the upper part thereof. Then, when starting the compressor 1, the gasified refrigerant in the upper part of the accumulator 8 is absorbed into the compressor 1 at first by way of a flow- out pipe 8 connected to the suction pipe 10 and the accumulator 8 and then the refrigerator oil accumulated in the lower part is absorbed. Owing to this construction, the refrigerator oil 11 accumulated in the accumulator 8 can return smoothly to the compressor 1 when starting the compressor 1, which makes it possible to relax the generation of abnormal sound by allowing the refrigerator oil 11 to be agitated violently in the accumulator 8 and thereby prevent the generation of a drawback that the abnormal sound is turned to a noise which may damage the quality of a merchandise.
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公开(公告)号：JPH04158178A
公开(公告)日：1992-06-01
申请号：JP28504090
申请日：1990-10-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO , TAMURA RYOZO
IPC: F25D11/02
Abstract: PURPOSE:To keep easily each of chambers in a predetermined temperature range by a method wherein the second refrigeration chamber and the third refrigeration chamber are completely defined by a vertical partition wall and a low temperature chamber returning duct communicating from the low temperature chamber with a cooling chamber and for directly returning cold air supplied to the low temperature chamber is provided. CONSTITUTION:The second refrigeration chamber 7 and the third refrigeration chamber 9 are completely defined by a vertical partition wall 28. A low temperature chamber returning duct communicating from a low temperature chamber 5 with a cooling chamber 10 is provided. Cold air supplied to the low temperature chamber 5 through a low temperature chamber discharging duct 16 returns to the cooling chamber 10 through a low temperature chamber return duct 29. The cold air supplied to the second refrigeration chamber 7 through the second refrigeration chamber discharging duct 18 returns to the first refrigeration chamber 3 through the second refrigeration chamber return duct 23. The cold air supplied to the third refrigeration chamber 9 through the third refrigeration chamber discharging duct 19 returns to the first refrigeration chamber 3 through the third refrigeration chamber returning duct 24. The cold air within the first refrigeration chamber 3 returns to the cooling chamber 10 through the first refrigeration chamber returning duct 25.
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Patent Agency Ranking
公开(公告)号：JP2001012841A
公开(公告)日：2001-01-19
申请号：JP18287899
申请日：1999-06-29
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAEDA KOJI , TAKAYAMA KIYOSHI , KUWARI YOSHIHIRO , OHASHI YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To reduce the amount of heat invading in a chamber in a refrigerator as low as possible, improve the cooling efficiency, and save energy by rationally maintaining the dew formation prevention function of dew prevention piping. SOLUTION: By providing a refrigeration chamber 37 formed at the upper portion of a first partition wall 35 in a heat-insulation box 31, a vegetable chamber 38 formed between the first and second partition walls 35 and 36, a refrigeration chamber 39 formed at the lower portion of the second partition wall 36, by arranging a line of dew-preventing pipe 53 on the front of the first and second partition walls 35 and 36, and by arranging condensation piping 54 on the inner surface of an outer box separated from the opening peripheral end part of the heat-insulation box 31 by a specific distance L68, the dew formation of the opening peripheral end of the first and second partition walls 35 and 36, the refrigeration chamber 37, the vegetable chamber 38, and the refrigeration chamber 39 is prevented rationally with simple and inexpensive piping configuration, and at the same time amount of invasion quantity of heat is reduced and cooling efficiency is improved.
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公开(公告)号：JPH11257823A
公开(公告)日：1999-09-24
申请号：JP6086198
申请日：1998-03-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To easily cool a specified low-temperature room to a stated temperature, by providing this unit with a specified low-temperature room anew, and also, providing it with a specified low-temperature room discharge air duct leading to the specified low-temperature room from a freezing room discharge air duct. SOLUTION: If the temperature of a freezing room 1 detected by a freezing room temperature detecting means 5 is higher than the set temperature, this combined freezer and refrigerator operates a blower 3 for a freezing room by a blower control circuit 6 for a freezing room and supplies the chill cooled with a cooler 2 for a freezing room to the freezing room 1 through a freezing room discharge air duct 4 so as to cool the freezing room 1. Then, this is provided with a specified low-temperature room 15 anew, and this supplies a part of the chill passing through the freezing room discharge air duct 4 to the specified low-temperature room 15 through a specified low-temperature room discharge air duct 16. Hereby, the quantity of chill supplied to the specified low- temperature room 15 gets off small, and the sectional area of the specified low-temperature room discharge air duct 16 can also be lessened, thus the specified low-temperature room can be cooled easily to about -3 deg.C.
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公开(公告)号：JPH08313139A
公开(公告)日：1996-11-29
申请号：JP12223495
申请日：1995-05-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO , SASAKI MASATO
Abstract: PURPOSE: To make it possible to shorten a time for returning to predetermined temperatures of a freezing chamber and refrigerating chamber after service interruption by a method wherein the number of rotation of a blast fan is reduced for a preset period of time when both of the refrigerating chamber temperature and a room temper ature are higher than a set temperature immediately after throwing power supply while a pressure is higher than an upper limit set pressure after a predetermined period of time has elapsed. CONSTITUTION: When power is supplied, and the operation of a compressor 6 and a blast fan 9 are started, and when the detecting temperature of a room temperature sensor 16 as well as the detecting temperature of a refrigerating chamber temperature sensor 11 are higher than set values thereof immediately after the starting of the operation of the compressor 6 and the blast fan 9, or when the detecting pressure of a pressure detecting means 25 is higher than an upper limit value after a predetermined time has elapsed, or under a condition that the input load of the compressor 6 is excessive, a control circuit 27 reduces the number of rotation of the blast fan 9 and such a condition is maintained until a preset time is elapsed. Accordingly, the returning time of an inside temperature to a predetermined temperature will never be elongated after the energization is restarted whereby effects on stored foodstuff can be reduced.
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公开(公告)号：JPH0571850A
公开(公告)日：1993-03-23
申请号：JP23146091
申请日：1991-09-11
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO , MAEDA KOJI
Abstract: PURPOSE:To obtain a freezing refrigerator having excellent volumetric efficiency and low temperature chamber temperature distribution by providing chilled gas discharge ports of a low temperature chamber provided at the front part of a temperature regulator in a lower part of a cold storage chamber at right and left parts of the front surface of a sidewall and suction ports at right and left parts of the back surface in the refrigerator having the cold storage chamber in an upper section and a freezing chamber in a lower section. CONSTITUTION:An automatic temperature regulator 31 is provided in the lower innermost part of a cold storage chamber 6, low temperature chamber chilled gas discharge ports 38 are provided at the right and left parts of the front surface in a low temperature chamber 29 of its front part, and low temperature chamber chilled gas return ports are provided at the right and left parts of the back surface.
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公开(公告)号：JPH0415477A
公开(公告)日：1992-01-20
申请号：JP11896690
申请日：1990-05-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUWARI YOSHIHIRO
Abstract: PURPOSE:To maintain a first refrigerating compartment at a uniform temperature by a method wherein a thawing compartment side wall cold air return duct, which communicates with a second refrigerating compartment cold air return duct and discharges the return cold air into the first refrigerating compartment, is provided on the inner side wall of the thawing compartment in the first refrigerating compartment. CONSTITUTION:The water in a water supply tank 25 is supplied to an automatic ice making device 24 through a water supply pipe 27 by the action of a water supply pump motor 26, and ice making is automatically carried out. Then, a zone of return cold air having a high temperature, that passes along a thawing compartment side wall cold air return duct 23, is formed between a thawing compartment 5 and the side of the thawing compartment 5 in a first refrigerating compartment 2, so that the side part of the thawing compartment 5 in the first refrigerating compartment 2 is hardly affected by the thermal influence of the thawing compartment 5 in which the temperature is lower than the refrigerating temperature and the first refrigerating compartment 2 is maintained at a uniform and proper temperature. Therefore, the water in the water supply tank 25 located beside the thawing compartment 5 is prevented from being super-cooled and freezing due to the thermal influence of the thawing compartment 5.
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