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公开(公告)号：JP2002191161A
公开(公告)日：2002-07-05
申请号：JP2000384867
申请日：2000-12-19
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAYASHI AKIRA , KITA ICHIRO , MORITA ICHIRO , INAGAKI KO , KATAYAMA MAKOTO
Abstract: PROBLEM TO BE SOLVED: To enhance productivity and reliability, by easily forming a smooth cylindrical form of a linear motor. SOLUTION: The productivity can be enhanced because the smooth cylindrical form can be formed, and also the reliability can be enhanced by preventing contact with a mobile magnet, by equipping the linear motor with a cylindrical outer yoke 8 where a thin plate 9 high in permeability is bent repeatedly for stacking circumferentially.
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公开(公告)号：JP2002081379A
公开(公告)日：2002-03-22
申请号：JP2000271110
申请日：2000-09-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAYAMA MAKOTO , MORITA ICHIRO
IPC: F04B39/00
Abstract: PROBLEM TO BE SOLVED: To provide a compressor used for a refrigeration cycle capable of reducing a sliding loss between a piston and a ball rod and enhancing an efficiency. SOLUTION: Since members 28b, 28c having a self-lubrication property are provided at both ends of a spherical body 26 having a ball rod 27 provided at the inside of a piston 25, a friction coefficient of an engagement part 28a can be reduced and a sliding loss is reduced to enhance an efficiency. A seizure of a sliding part is prevented and a reliability is enhanced.
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公开(公告)号：JP2001200789A
公开(公告)日：2001-07-27
申请号：JP2000008915
申请日：2000-01-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAYASHI AKIRA , MORITA ICHIRO , KAWABATA JUNTA , KOBAYASHI MASANORI , INAGAKI KO , ISHIDA TAKANORI , KATAYAMA MAKOTO
Abstract: PROBLEM TO BE SOLVED: To miniaturize a vibration type compressor as well as preventing reduction of piston position detecting accuracy. SOLUTION: A fixing part 19a of a displacement detector 19 is disposed on the end part of the reverse compression chamber side of a cylinder 15, and a movable core part 19b is disposed on an outer peripheral part of a piston 16. Reduction of the position detecting accuracy caused by the influence of assembly accuracy can be prevented, and also the compressor can be miniaturized.
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公开(公告)号：JP2001165044A
公开(公告)日：2001-06-19
申请号：JP35131199
申请日：1999-12-10
Applicant: MATSUSHITA REFRIGERATION
Inventor： ISHIDA TAKANORI , MORITA ICHIRO , KAWABATA JUNTA , INAGAKI KO , KATAYAMA MAKOTO , HAYASHI AKIRA
Abstract: PROBLEM TO BE SOLVED: To provide a slide member for a compressor, pump, etc., in this invention, having high reliability by attaining low friction in a slide location and improving abrasion resistance in the case a small amount of oil is supplied or even under a condition of oil free. SOLUTION: A compression mechanism, a refrigerant, and refrigerator oil are housed in a closed vessel, this slide member is characterized by consisting of compound material blending nickel powder and carbon powder by 1 to 30 wt.% in total relating to titanium boride ceramics powder of 70 to 99 wt.% in at least one slide material in the compression mechanism. In addition to abrasion resistance provided in titanium boride ceramics itself, by self lubrication with boride, a compressor and a pump are obtained in high reliability and high efficiency even in the case oil supply is in a poor condition.
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公开(公告)号：JP2000297752A
公开(公告)日：2000-10-24
申请号：JP10792699
申请日：1999-04-15
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOBAYASHI MASANORI , MORITA ICHIRO , INAGAKI KO , KATAYAMA MAKOTO , HAYASHI AKIRA
Abstract: PROBLEM TO BE SOLVED: To provide a vibration type compressor preventing the occurrence of a fatigue failure and having high reliability by reducing the stress occurring on the arms of an elastic body when a piston is reciprocated and the elastic body repeats displacement in the piston axial direction. SOLUTION: When a piston is reciprocated and an elastic body repeats displacement in the piston axial direction, the elastic body is reciprocated with its arms 20a, 20b, 20c warped. The arms 20a, 20b, 20c form vortexes partially having fine portions and large portions with the arm widths smoothly changed. Fine portions are deformed relatively largely, the stress at the fine portions is relatively increased, and the stress at other stress concentrated portions can be reduced. When the piston is reciprocated and the elastic body repeats displacement in the piston axial direction, the stress occurring on the arms 20a, 20b, 20c can be reduced, thereby a vibration type compressor preventing the occurrence of a fatigue failure and having high reliability can be provided.
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Patent Agency Ranking
公开(公告)号：JP2000297751A
公开(公告)日：2000-10-24
申请号：JP10792599
申请日：1999-04-15
Applicant: MATSUSHITA REFRIGERATION
Inventor： MORITA ICHIRO , KOBAYASHI MASANORI , INAGAKI KO , KATAYAMA MAKOTO , HAYASHI AKIRA
Abstract: PROBLEM TO BE SOLVED: To reduce the sliding loss of a piston and cylinder and prevent a drop of reliability by wearing, in a vibration type compressor used for a refrigeration cycle. SOLUTION: This compressor is composed of an elastic element 7 whose one part is fixed to a movable element 9 and whose one part is fixed to a block 19, and a cylinder 18 and block 19 are assembled to the same member of the other fixed element 10. By assembling the cylinder 18 to the block 19, it is prevented that the cylinder 18, piston 4 and the shaft of an elastic element are assembled in a shifted and slanted state and the sliding loss of a slide part is reduced and the wearing is prevented.
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公开(公告)号：JP2000121180A
公开(公告)日：2000-04-28
申请号：JP28908398
申请日：1998-10-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOBAYASHI MASANORI , YOSHIMURA TAKAO , MORITA ICHIRO , INAGAKI KO , KATAYAMA MAKOTO
Abstract: PROBLEM TO BE SOLVED: To prevent a decrease in an efficiency in association with a frequency change of a compressor in addition to a reduction in a dissipation power and an improvement in reliability by providing an altering means for altering a stroke of a vibration type compressor through a control means based on a sensed temperature, pressure or time of a cooling system. SOLUTION: A vibration type compressor 10 can operate a variable displacement operation by a stroke altering means 1. A control means 12 controls a stroke of the compressor 10 through the means 11 based on a signal from a temperature sensor 5 for sensing a temperature in a refrigerator. The sensor 5 senses the temperature in the refrigerator and transmits a signal to the means 12. The means 12 receives the transmitted signal, controls a stroke according to a thermal load by the means 11, and controls a drive or a stop of the compressor 10 according to the sensed temperature in the refrigerator. Thus, the compressor can be controlled without altering a reciprocating frequency of the compressor.
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公开(公告)号：JP2000120536A
公开(公告)日：2000-04-25
申请号：JP29350898
申请日：1998-10-15
Applicant: MATSUSHITA REFRIGERATION
Inventor： INAGAKI KO , MORITA ICHIRO , KOBAYASHI MASANORI , KATAYAMA MAKOTO
Abstract: PROBLEM TO BE SOLVED: To reduce an oscillation in an oscillatory compressor to be available in a refrigerator, an air conditioner and suchlike cooling equipment. SOLUTION: This compressor is comprised of a piston 5 whose one end is attached to a closed casing 1 or a stationary element 12 and the other end to a weight 20 each, and a spring 21 being elastically deformable, respectively. With this constitution, the weight 20 oscillates in the same frequency as a movable element 11, damping an oscillation in the closed casing 1 or the stationary element 12, and thereby oscillation in the closed casing 1 is reduced.
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公开(公告)号：JPH11311178A
公开(公告)日：1999-11-09
申请号：JP11836498
申请日：1998-04-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： KOBAYASHI MASANORI , MORITA ICHIRO , INAGAKI KO , KATAYAMA MAKOTO
IPC: F04B35/04
Abstract: PROBLEM TO BE SOLVED: To prevent fatigue destruction or wear of arms and decrease of freez ing performance caused by increase in the weight of movable element in a vibration type compressor used for refrigerant cycle by reducing the stress generated in the vicinity of fixed part of elastic member, and by avoiding genera tion of contact between the adjacent arms without adding a member for keeping a gap between stacked flat plates. SOLUTION: An arm 21a is fixed at a slit end 25a on the outer periphery side of a slit 20a, at an angle α ranging from 10 deg. to 50 deg.. The arm 21a and the slit 20a are alterately provided on each other to form an elastic body. Accordingly, it is possible to prevent fatigue destruction or wear of the arm 21a, and also possible to prevent the deterioration of freezing capacity resulting from the increased weight in movable element.
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公开(公告)号：JPH11117862A
公开(公告)日：1999-04-27
申请号：JP28173397
申请日：1997-10-15
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAYAMA MAKOTO , MORITA ICHIRO , KOBAYASHI MASANORI , INAGAKI KO
Abstract: PROBLEM TO BE SOLVED: To maintain a top clearance always to a minimum by linking movable elements formed of a movable element of a motor, a piston, and the like, with fixed elements formed of a stator of the motor, a block, and the like through elastic elements, and making a cylinder axially movable in relation to the block. SOLUTION: In the case of lowering refrigerating capacity during the operation of a compressor, applied voltage to a motor 3 is lowered to lower the stroke quantity of a piston 5 linked with a stator 3a of the motor 3 through an elastic element 8. At this time, top clearance volume is about to increase in association with a lowering of the stroke quantity, but a cylinder 15 is moved toward an anti-compression chamber 9 by a driving element 16 so as to suppress the increase of a top clearance and to maintain a fixed top clearance. At the time of increasing refrigerating capacity, the stroke quantity of the piston 5 is increased, but at this time, the cylinder 15 is moved to the anti-piston 5 side to maintain the fixed top clearance in the same way.
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