公开(公告)号：JPH0674171A

公开(公告)日：1994-03-15

申请号：JP22693192

申请日：1992-08-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI ,  YOSHIMURA TAKAO ,  MORITA ICHIRO

IPC: F04C18/356 ,  F04C29/02

Abstract: PURPOSE:To provide a reliable compressor by feeding sufficient amount of lube oil to a vane section and an oil supply mechanism at all times even when the amount of lubricating oil in a compressor is reduced to prevent lowering of efficiency due to defective lubrication, in a rotary compressor used in refrigerating cycle, etc. CONSTITUTION:A rotary compressor is provided with a back pressure chamber 19 installed at the back of a vane 6, a discharge chamber 20 into which compressed refrigerant is discharged, a discharge path 22 one end of which is communicated with the discharge chamber 20 and the other end of which is opened in lube oil 18, and an oil feed pipe 23 into one end of which the discharge path 22 is inserted in the lube oil, the other end of which is communicated with the back pressure chamber 19 from an electric motor 2 side, and of which diameter is larger than the discharge path 22.

公开(公告)号：JPH0610874A

公开(公告)日：1994-01-21

申请号：JP16452792

申请日：1992-06-23

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI ,  YOSHIMURA TAKAO ,  MORITA ICHIRO

IPC: F04C29/02

Abstract: PURPOSE:To provide a compressor of high reliability while preventing efficiency from worsening due to improper lubrication to a vane by always supplying sufficient lubricating oil to the vane even in the case of decreasing an amount of lubricating oil in the compressor, in the rotary compressor used for a refrigerating cycle or the like. CONSTITUTION:A rotary compressor comprises a back pressure chamber 19 provided in a back surface of a vane 6, delivery chamber 20 of delivering compressed refrigerant gas, delivery pipe 21 with one end connected to the delivery chamber 20 and the other end opened into lubricating oil 18 and a supply oil pipe 22 of inserting one end to the delivery pipe 21 and connecting the other end to the back pressure chamber 19 to further provide a diameter larger than the delivery pipe 21.

公开(公告)号：JP2001298293A

公开(公告)日：2001-10-26

申请号：JP2000111789

申请日：2000-04-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI ,  YOSHIMURA TAKAO

IPC: F25B1/00 ,  F25B9/00 ,  F25B9/14 ,  H01L23/473 ,  H05K7/20

Abstract: PROBLEM TO BE SOLVED: To prevent degradation in reliability of an electronic apparatus, related to a cooling device of an integrated circuit used for the electronic apparatus, by preventing dewing at the integrated circuit or other low-temperature member even when the integrated circuit is cooled below a room temperature. SOLUTION: There are provided an electronic apparatus comprising an integrated circuit and the like, a cooling unit 8 for cooling the integrated circuit 10, and a heat-insulating material 21 for enclosing the integrated circuit 10 and a low-temperature part of the cooling unit. Thus, unstable calculation due to overheat of the integrated circuit 10 and dewing when the integrated circuit are cooled below a room temperature is avoided, preventing degradation of reliability.

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

IPC: F04B49/06 ,  F04B35/04

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.

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

IPC: F04B35/04 ,  H02K33/06

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.

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

IPC: F04B35/04 ,  H02K7/14 ,  H02K33/04

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.

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

IPC: F04B49/08 ,  F25B1/00 ,  F25B1/02 ,  F25D11/00 ,  G05D23/00

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.

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

IPC: F04B39/12 ,  F04B35/04

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.

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.

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

IPC: F04B49/00 ,  F04B35/04

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.