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公开(公告)号：JPH01189473A
公开(公告)日：1989-07-28
申请号：JP1391288
申请日：1988-01-25
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI , FUJIMOTO SHINJI
IPC: F25D11/00
Abstract: PURPOSE:To lessen cooling load, considerably miniaturize a refrigerator unit and reduce power consumption by cooling and freezing necessary minimum chill accumulating agent in a chill accumulating chamber of small volume which is partitioned by an insulating partition wall during chill accumulating operation. CONSTITUTION:When a compressor 36 is operated, chill accumulating agent 22 is cooled by a cooler 23 to coagulate and the temperature of a chill accumulating temperature detecting part 40 becomes prescribed temperature less than freezing temperature, a chill accumulating temperature detector 39 is actuated and the operation of the compressor 36 is stopped. Since at this time it is sufficient if only a chill accumulating chamber 21 which is partitioned by an insulating partition wall 26 is cooled, cooling load can considerably be lessened. When an air fan 28 is operated, a chill cooled by the chill accumulating agent 22 is flowed out to the side of a cold holding chamber 29 from an air hole 27 and the cold holding chamber 29 is cooled. Cooling transporting goods 16 such as perishable foods are put in the cold holding chamber 29, the operation of the compressor 36 is stopped, and the foods 16 are transported to a destination. When during heat accumulating operation, outside air is less than the prescribed temperature (for example 10 deg.C), it is detected by an outside air thermostat 34, chill accumulating operation is performed while a heat accumulating heater 32 is turned on electricity. Heat accumulating agent 31 is heated by the heat accumulating heater 32.
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公开(公告)号：JPS6433003A
公开(公告)日：1989-02-02
申请号：JP18626187
申请日：1987-07-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI
Abstract: PURPOSE:To obtain the title ozonizer having excellent durability and capable of stably and efficiently generating a large amt. of O3 even in a high-humidity environment by printing and embedding a high-voltage induction electrode and a heater having a specified shape in a flat board, and integrally sintering the assembly. CONSTITUTION:The high-voltage induction electrode 9 and the heater 10 having a specified shape are printed and embedded in the flat board 11 consisting of a ceramic, etc., and the assembly is integrally sintered. A tabular grounded electrode 8 covered with a cover coat layer 12 is placed on one end face of the board 11, and opposed to the electrode 9. An AC high-frequency high voltage is impressed between the electrodes 8 and 9 from a high-voltage transformer 13 through lead wires 14 and 15, the board 11 is heated by the heater 10 to dehumidify the surface of the board 11, a creeping discharge is generated on the surface of the cover coat layer 12 to excite O, and O3 is generated.
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公开(公告)号：JPS63153380A
公开(公告)日：1988-06-25
申请号：JP30097986
申请日：1986-12-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： ISHIZAKA TAKESHI , UMEMOTO TAKAO , MASATOKI YOSHIBUMI
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公开(公告)号：JPS58170889A
公开(公告)日：1983-10-07
申请号：JP5263882
申请日：1982-03-30
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI
IPC: F04C18/356
Abstract: PURPOSE:To raise the efficiency and reliability of operation of a rotary compressor, by reducing the frictional force acted between vanes and vane slots in which the vanes are slided by changing the setting angle of the vane slots to a particular angle, and thereby reducing wear at the sliding contact portions as well as the mechanical input force. CONSTITUTION:According to the present invention, vane slots 10 are formed such that the angle of vanes 9 is perpendicular to the tangential line l at contact points P of the vanes 9 to a rotor 4 at the time of the turning angle 45 deg. of the rotor 4 when the speed of movement of the vanes 9 caused by the rotor 4 becomes maximum. That is, the vane slots 10 are formed in a direction in which the force of the rotor 4 urging the vanes 9 upward is acted (in a direction making an angle alpha to the y-axis). Since, with such an arrangement, no component force is acted to the vanes 9 at the above turning angle of the rotor 4, the vanes 9 are slided smoothly in their sliding directions, so that the frictional force acted between the vanes 9 and the vane slots 10 can be minimized. By thus reducing wear at the sliding contact portions and thereby reducing the mechanical input force, it is enabled to enhance reliability of operation and to raise the efficiency of operation of a rotary compressor.
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公开(公告)号：JPS5865990A
公开(公告)日：1983-04-19
申请号：JP16513781
申请日：1981-10-15
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI
IPC: F04C18/356
Abstract: PURPOSE:To slow down touch and slide speed between a vane and a rotor as well as to decrease mechanical loss, by turning the sectional from of a rotor revolving inside a section-circular cylinder to noncircular form, while attaching a rotatable, flexible belt type ring band to the outer surface of the rotor. CONSTITUTION:A rotor 8, which rotates inside a section-circular cylinder 6, is of ellipse-shaped in type as in illustration, by way of example, and on its outer surface, there is a flexible belt type ring band 9 having a plate thickness of 0.3mm. or so attached in a state of being slidable relatively to the rotor 8. When this rotor 8 rotates in the state that vanes 10 press and touch the ring band 9, this ring band 9 produces slippage for the rotor 8 and therefore rotates on its own axis at tardier speed than that of the rotor 8. Accordingly, the touch and slide speed between the vanes 10 and the ring band 9 becomes lowered so that mechanical loss at this point can be decreased.
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Patent Agency Ranking
公开(公告)号：JPH10300247A
公开(公告)日：1998-11-13
申请号：JP10562197
申请日：1997-04-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI , KINO AKIHIRO
IPC: F25B1/00
Abstract: PROBLEM TO BE SOLVED: To improve reliability by continuously connecting a discharge hole for communicating its interior of a sheet of a compressor with its exterior, a discharge tube, a two-way valve, a flow control tube and an evaporation tube in series, and communicating a discharge port with a suction tube of the compressor, thereby rapidly removing liquid refrigerant retained in the compressor. SOLUTION: A two-way valve control means A21 opens a two-way valve 14 by start of a compressor 10. Thus, liquid refrigerant retained in a shell 11 of the compressor 10 arrives at a flow limiting tube 15. The refrigerant is decompressed by the tube 15, and arrives at an evaporating tube 16. The refrigerant is evaporated in the tube 15, and pressure of the tube 16 is lowered. This is sensed by an evaporating tube pressure sensor 20. The refrigerant in the shell 11 is eliminated, and refrigerating machine oil 7 arrives at the tube 16. Then, the pressure of the tube 16 is raised. This pressure rise is sensed by the sensor 20, and output to the means A21. The means A21 closes the valve 14 by an output of pressure rise sensing of the sensor 20.
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公开(公告)号：JPH10300244A
公开(公告)日：1998-11-13
申请号：JP10561697
申请日：1997-04-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： KINO AKIHIRO , MASATOKI YOSHIBUMI
IPC: F25B1/00
Abstract: PROBLEM TO BE SOLVED: To rapidly remove liquid refrigerant retained in a compressor, by installing a heater in close contact with an outer surface of a shell of the compressor substantially at a bottom of the compressor, and communicating an interior of the compressor within a receiver via communicating tube. SOLUTION: At the time of stopping a compressor 10, a temperature of the compressor 10 is raised by heating via a heater 14. Thus, temperature of refrigerant in the compressor 10 is raised, but since a receiver 12 is separately independently installed from the compressor 10, there occurs a temperature difference between the compressor 10 and the receiver 11. Thus, the refrigerant is moved due to vapor partial pressure difference of the both, and hence moved to the receiver 12. In this manner, liquid refrigerant in the compressor 10 is eliminated. As a result, only refrigerating machine oil is supplied to a compressor driver to prevent lubricating failure due to mixture of liquid refrigerant, resulting in much contribution to an improvement in reliability of the compressor 10.
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公开(公告)号：JPH09228974A
公开(公告)日：1997-09-02
申请号：JP3772996
申请日：1996-02-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI , AIZAWA TAKESHI , FUJIMOTO RYUZO
Abstract: PROBLEM TO BE SOLVED: To prevent the suction of refrigerant liquid by lowering a liquid level of the refrigerant liquid below a lower end of an oil supply pipe and suction only lubricant by providing a recessed part in which refrigerant liquid separated in two phases is collected in a part of a lower non-dissolving lubricant collection face of a horizontal and cylindrical housing. SOLUTION: In a rotary compressor for refrigeration and air-conditioning, a motor part 12 and a refrigerant compression mechanism part 13 are connected to a shaft 14, and dissolving lubricant 17 is supplied to a slide face of the compression mechanism part 13 by an oil supply spring 16 provided in the inside of an oil supply pipe 15 which is continuous with a tip of the shaft 14 in a horizontal and cylindrical housing 11. In this case, a recessed part 18 is provided in a part of a lubricant 17b collection face in a lower part of the housing 11. The volume of the recessed part 18 is such volume that liquid level is lower than a lower end of the oil supply pipe 15 in accordance with volume of refrigerant liquid which is separated in two phases. Consequently, refrigerant liquid which is separated into two phases is collected in the recessed part to suppress the suction of the refrigerant liquid from the oil supply pipe 15 securely by lowering the liquid level.
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公开(公告)号：JPH08287344A
公开(公告)日：1996-11-01
申请号：JP8812995
申请日：1995-04-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： FUJIMOTO RYUZO , MASATOKI YOSHIBUMI
Abstract: PURPOSE: To provide the cooling device of the automatic vending machine which actualizes proper cooling performance corresponding to a change in vending mode and variation in cooling load quantity and does not spoil the reliability of a compressor due to the suction of a refrigerant made into overheated gas or liquid refrigerant into the compressor by enabling a refrigerant circulation quantity to be adjusted by varying throttle resistance. CONSTITUTION: This device consists of article temperature sensors 21A and 21B which detect article temperature, article reference temperature storage means 27A, 27B, 27C, and 27D which store the reference temperature of articles, an opening extent control means 26 which varies the opening extents of motor- driven expansion valves 24A and 24B according to the difference between the article temperature and the reference value stored in the article reference temperature storage means, and a frequency converting means 28 which converts the frequency of the compressor 6.
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公开(公告)号：JPH08159641A
公开(公告)日：1996-06-21
申请号：JP29948194
申请日：1994-12-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： MASATOKI YOSHIBUMI
Abstract: PURPOSE: To provide a refrigerator in which a heat exchanging capability of a cooler is maintained at its normal state while preventing a poor defrosting, a defrosting time is shortened to restrict an increasing of temperature within the refrigerator and a less amount of electrical consumption power can be attained by a method wherein a nonazeotropic mixed refrigerant is used, a lower part of the cooler and an upper part of the cooler are directly connected by two pipes and in particular the upper part of the cooler having a large amount of frosted substance is promoted for its defrosting. CONSTITUTION: There are provided cooling pipes 7 using a non-azeotropic mixed refrigerant and arranged in plural rows in a forward or a reaward direction and in plural stages in an upward or a downward direction in a substantial grid-like manner, cooling fins connected to the cooling pipe 7 in a heat- exchanging manner, a cooling device comprised of connecting pipes for use in connecting an outlet of the cooling pipe at the lower second stage and an inlet of the upper-most cooling pipe and further connecting an outlet of the upper-most cooling pipe to an inlet of the lower-most cooling pipe and a heater 2 at the lower part of the cooling device 12.
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