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公开(公告)号：JP2000121178A
公开(公告)日：2000-04-28
申请号：JP29350698
申请日：1998-10-15
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIMURA YOSHITO , SHIMOMURA NOBUO , HAMANO YASUKI , SAITO TETSUYA
Abstract: PROBLEM TO BE SOLVED: To reduce a refrigerant amount and to enhance safety at the time of using by connecting a second pressure reducing means and a second evaporator parallelly to a first pressure reducing means and a first evaporator, arranging a channel control means at inlet sides of the first and second pressure reducing means, and sealing a combustible refrigerant as a refrigerant. SOLUTION: A closed loop is formed of a low pressure container type capability variable compressor 12, a condenser 2, a capillary 7 of a first pressure reducing means and a first evaporator 3. Simultaneously, a capillary 8 of a second pressure reducing means and a second evaporator 5 are connected parallelly to the capillary 7 and the evaporator 3. A motor driven three-way valve 13 of a channel control means is provided at inlet sides of the capillaries 7, 8. As a refrigerant, for example, a combustible refrigerant of HC refrigerant (propane, isobutane) is sealed. Thus, a piping capacity of a cooling system can be reduced, and a refrigerant amount can be decreased.
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公开(公告)号：JPH1047826A
公开(公告)日：1998-02-20
申请号：JP20679696
申请日：1996-08-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： HYODO AKIRA , ASAKAWA OSAMU , FUJIMOTO SHINJI , KIMURA YOSHITO , KAWADA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To improve a food preserving condition of a freezing refrigerator having a freezing chamber and a refrigerating chamber by elevating a humidity of the refrigerating chamber while elevating a cold-air blow-off temperature of the refrigerator. SOLUTION: A freezing refrigerator comprises a refrigerating cycle for refrigerating, a refrigerating cycle for freezing, and switching means which switches these two cycles, wherein the refrigerating cycle for refrigerating is formed by connecting a compressor 27, a condenser 28, a first throttling device 29, an evaporator 25 for refrigerating, a second throttling device 30, and an evaporator 22 for freezing in series, while the refrigerating cycle for freezing is formed by connecting the compressor 27, the condenser 28, a third throttling device 31, and the evaporator 22 in series. Due to such a construction, during a freezing chamber refrigerating operation, the refrigerating is carried out using the refrigerating cycle for freezing so as to refrigerate at a low evaporating temperature, while during the refrigerating chamber refrigerating operation, the refrigerating is carried out using the refrigerating cycle for refrigerating so as to operate at a high evaporating temperature so that a blow-off cold-air temperature is elevated and a humidity in the refrigerating chamber is held high even if an amount of food accommodated in the refrigerating chamber is small.
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公开(公告)号：JPH09236372A
公开(公告)日：1997-09-09
申请号：JP6535296
申请日：1996-02-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： KAWADA YOSHINORI , ASAKAWA OSAMU , KIMURA YOSHITO , HYODO AKIRA
Abstract: PROBLEM TO BE SOLVED: To maintain the temperature in a room in a predetermined temperature range by preventing the temperature of a freezer chamber and a refrigeration chamber from rising due to the heat generated by a defrosting heater means. SOLUTION: A freezer chamber blowoff port 6 for feeding cold air to a freezer chamber 2 and a refrigeration chamber blowoff port 7 for feeding cold air to a refrigeration chamber 3 are formed in a cooler chamber 4 housing an evaporator 8, and at the start of a freezing cycle operation after the completion of a defrosting operation, the freezer chamber blowoff port 6 and refrigeration chamber blowoff port 7 are kept in an open state by means of a blowoff port switching means 14 until the temperature of the cooler chamber becomes a predetermined temperature to prevent heated air from flowing into the refrigeration chamber 3.
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公开(公告)号：JPH09229532A
公开(公告)日：1997-09-05
申请号：JP6215196
申请日：1996-02-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIMURA YOSHITO , ASAKAWA OSAMU , FUJIMOTO MASATSUGU , HYODO AKIRA , KAWADA YOSHINORI
Abstract: PROBLEM TO BE SOLVED: To prevent foodstuffs in a refrigerator chamber from being frozen or icing within the refrigerator chamber, reduce drying in the refrigerator chamber and improve keeping a freshness of the foodstuffs in the refrigerator at a low cost. SOLUTION: One evaporator 19 is partitioned by a partition member 20 into a first evaporator region 21 and a second evaporator region 22. A cooling air passage 23 of a freezing chamber includes a first evaporator region 21 and a freezing chamber cold air circulating means 24. With such an arrangement as above, air in the freezing chamber and air in the refrigerator chamber are cooled independently from each other and each of suitable temperatures of the discharged air can be attained, so that the temperature within each of the chambers can be made uniform at a low cost.
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公开(公告)号：JPH0989435A
公开(公告)日：1997-04-04
申请号：JP24904295
申请日：1995-09-27
Applicant: MATSUSHITA REFRIGERATION
Inventor： ASAKAWA OSAMU , KIMURA YOSHITO , YAMAMOTO HIDEO
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency by providing pressure reducing means for alternately switching the dampers of chambers during operating of a compressor to vary the evaporating temperature of an evaporator at the time of cooling the chambers, and a variable condenser having variable number of revolutions and a variable cooler fan. SOLUTION: The cold storage damper 5a of a cold storage chamber 3 is opened, the pressure reducing amount of pressure reducing means is simultaneously switched, and the evaporating temperature of an evaporator 7 is raised to the vicinity of the cold storage temperature. Thus, the suction pressure is raised, the refrigerant circulating amount of a compressor 6 becomes twice to three times as compared with the evaporating temperature at the time of cooling a deep freezing chamber 2, and the freezing capacity is increased. The pressure reducing amount of the pressure reducing means is switched, and the number of revolutions of the variable condenser fan 16 of a condenser 12 and the variable cooler fan 17 of an evaporator 7 are simultaneously increased. The number of revolutions is increased to increase the heat exchanger capacities of the condenser 12 and evaporator 7, and the refrigerating capacity meeting the increased refrigerant circulating amount can be effectively drawn.
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Patent Agency Ranking
公开(公告)号：JPH08121939A
公开(公告)日：1996-05-17
申请号：JP25339794
申请日：1994-10-19
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIMURA YOSHITO , KINO AKIHIRO
Abstract: PURPOSE: To make a contribution to the improvement of the reliability of a compressor by preventing liquid from returning from an evaporator being defrosted to the compressor, the oil film on the machine part of the compressor from being washed off with refrigerant and the liquid from being compressed at the time of starting the operation of the compressor after defrosting. CONSTITUTION: A refrigerator is provided with a compressor 1 of a pressurized container, a condenser 2, a pressure reducing means 3, an evaporator inlet part 14 at one end of an evaporator 4, an evaporator outlet part 15 at the other end thereof, a defrosting heater 8 near the evaporator outlet part 15, a defrosting completion detecting means near the evaporator inlet part 14 for detecting the completion of the defrosting of the evaporator 4 and a control means 21.
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公开(公告)号：JPH07146039A
公开(公告)日：1995-06-06
申请号：JP29516893
申请日：1993-11-25
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIMURA YOSHITO
Abstract: PURPOSE:To prevent a liquid return to a compressor from an evaporator and liquid compression at the time of defrosting and moreover to prevent shortage of a lubricating oil in the compressor due to the stay of the lubricating oil in an accumulator after the start of the compressor at the time of an ordinary operation of a refrigerator. CONSTITUTION:In a refrigerating cycle system 9 wherein a high-pressure container type compressor 1, a condenser 2, a pressure reducing means 3 and an evaporator 4 are connected sequentially circularly, an accumulator 5 and a first piping one end of which is connected to the upper part of the accumulator and the other onto the evaporator 4 side are provided. Moreover, a second piping 12 one side of which is inserted into the accumulator 5 to the inner upper part from the lower part thereof and the other connected onto the high- pressure container type compressor 1 side, and a capillary tube 14 one side of which is connected to the upper part of the side wall 13 of the second piping 13 positioned inside the accumulator 5 and the other positioned at the inner lower part of the accumulator 5, are provided.
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公开(公告)号：JPH07120109A
公开(公告)日：1995-05-12
申请号：JP26331793
申请日：1993-10-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： KIMURA YOSHITO
Abstract: PURPOSE:To prevent wet vapor suction to a compressor from an evaporator and liquid compression at the time of defrosting and to further prevent insufficient lubricant in the compressor due to retention of lubricant in an accumulator after the compressor is started at the time of normal operation of a refrigerator. CONSTITUTION:The refrigerant cycle system comprises a first accumulator 10, a second accumulator 11 and a first tube 12 connected at one side to a top of the accumulator 10 and at the other to an evaporator 4. The system further comprises a second tube 14 inserted at one side from a lower part of the accumulator 10 to an inner upper part and connected at the other to the top of the accumulator 11, a third tube 15 connected at one side to the compressor 1 side and inserted at the other from the lower part of the accumulator 11, and an oil return hole 17 provided at a sidewall of the tube 15 and disposed at a lower inner part of the accumulator 11.
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公开(公告)号：JPH06314374A
公开(公告)日：1994-11-08
申请号：JP10239293
申请日：1993-04-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANAKA YASUHIKO , KITA TAKAHIRO , ODA MASATAKA , OKUDA MAKOTO , KIMURA YOSHITO
Abstract: PURPOSE:To prevent a defect in operation due to frosting, icing, etc., at a movable part in a storage room and improve the stability of vending operation by performing both or either of a door and an in-box conveyance device in idling operation irrelevantly to vending operation. CONSTITUTION:The door 16 or in-box conveyance device 17 is placed in idling operation through a timer 66 and an in-box temperature sensor 67 irrelevantly to whether or not vending operation is carried out, when the possibility of vending is low, for example, in nighttime, one hour after defrosting is completed, at the time of recooling operation at the time of a power failure, maintenance, etc., or when the in-box temperature nearly reaches 0 deg., namely, when an idling operation control means 68 decides that set conditions are met. Therefore, the development of local frosting and icing can be prevented at the rotary and slide parts of the in-box conveyance device 17 and the seal part of the door 16. In this idling operation, steps of vending are given priority, so even when the idling operation and vending operation are performed simultaneously, the cycle time of the vending operation never becomes long.
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公开(公告)号：JPH06312886A
公开(公告)日：1994-11-08
申请号：JP10239193
申请日：1993-04-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： ODA MASATAKA , TANAKA YASUHIKO , OKUDA MAKOTO , KIMURA YOSHITO , KITA TAKAHIRO
IPC: B65H75/14
Abstract: PURPOSE:To prevent a ball, provided on the halfway of a wire, from coming off from a ball storage recessed part of a drum. CONSTITUTION:A ball 3 fixed to a wire 2 is stored in a recessed part 4 of a drum 1, and on top of the ball, a pin 8 is extended from a pin hole 9, to further extend an end part of the pin 8 folded into a boss 6. A flange 13 of a different shaped part 12, engaged with a boss part of a rotary shaft 7, is positioned in a fold part of the pin 8. In this way, the ball 3 and the pin 8 can be easily and surely prevented from coming off, and instantaneously reversely driving can be also performed.
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