公开(公告)号：JPH11303742A

公开(公告)日：1999-11-02

申请号：JP10910398

申请日：1998-04-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To attenuate both a machine vertical vibration being transmitted from a compression element to a hermetic container and a coil-spring scraping noise thereof in a suction path wherein the coil spring connects a suction muffler and a suction tube, by the suction muffler being fixed to the compression element. SOLUTION: This hermetic compressor comprises a suction tube 13 passing through a sealed container 1, a suction muffler fixed to a compression element 6, a connection tube 17 connected to the suction muffler, and a coil spring 16 connecting the suction tube 13 and the connection tube 17, and an insertion tube is connected thereto by being inserted into the connection tube 17 and an entrance hole 14a in the suction muffler, and this insertion tube is formed of a metallic bellows 18.

公开(公告)号：JPH1073080A

公开(公告)日：1998-03-17

申请号：JP23005596

申请日：1996-08-30

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To reduce transmission sound in a suction muffler so as to improve the silencing effect of the muffler, by forming the suction muffler fixed to a compression element of refrigerant-resistant and oil-resistant vibration-damping iron plate, in a hermetic compressor provided with an electrically driven element and a compressive element elastically supported in a sealed container. SOLUTION: An electrically driving element 2 is started and a crank shaft 6 rotates, a piston 9 makes its reciprocating motion in a cylinder 8 via its eccentric part 11 and connecting rod 10, thereby refrigerant gas enters the cylinder 8 from a suction muffler 20 so as to be sucked compressed and discharged. In such a hermetic compressor, a suction muffler 20 for forming a silencer fixed to a compression element is formed of refrigerant-resistant and oil-resistant vibration-damping iron plate. Thereby, the vibration of the pulsative sound of refrigerant gas from a cylinder 8 generated during suction stoke is absorbed in the vibration-damping iron plate so as to exhibit its silencer effect. In addition, the suction muffler 20 is formed of synthetic resin or the like and may be covered by a muffler cover formed in compliance with the outer peripheral configuration of the suction muffler 20.

公开(公告)号：JPH08144950A

公开(公告)日：1996-06-04

申请号：JP28659294

申请日：1994-11-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  ONO TAKESHI ,  KATAOKA YOSHITO

IPC: F04B39/00 ,  F04B39/02

Abstract: PURPOSE: To reduce a compressor noise by providing a shell, a motor-driven element at an upper position therein, a compression element with a cylinder at a lower position, and refrigerator oil accumulated on a bottom section within the shell. CONSTITUTION: A motor-driven element 11 laid at an upper position in a shell 10 and a compression element laid at a lower position are jointed to each other via a crankshaft 13 in a compressor. an oil pump 14 is mounted on the lower end of the crankshaft 13. In addition, an oil capillary 15 for feeding a small amount of oil to the element 12 and the oil pump 14 have forward ends submerged in refrigerator oil 16 accumulated in the shell 10. furthermore, the cylinder 18 of the element 12 is positioned above the level of the oil 16 accumulated on a bottom section in the shell 10. According to this construction, a vibration transmitted from the cylinder 18 to the shell 10 via the oil 16 can be interrupted.

公开(公告)号：JPH06137271A

公开(公告)日：1994-05-17

申请号：JP28573592

申请日：1992-10-23

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI

IPC: F04B39/00 ,  F16F15/04

Abstract: PURPOSE:To provide a closure type compressor which is designed to reduce the generation of noise by an interior support device for supporting a compressor body and reduces the generation of noise through erasure of impact-like noise generated during the starting and the stop of a conventional compressor. CONSTITUTION:In an interior support device for a closure type compressor formed such that a support spring is located between seat parts 31 and 32, arranged to a compressor body 2 and a casing 1, respectively, and snub bar parts 33 and 34 communicated to a seat part, the support spring is a bellows 40 formed such that a thin cylinder made of a metal is expanded in a pleat-like state, the support spring causing internal support of the compressor body 2.

公开(公告)号：JPH05164047A

公开(公告)日：1993-06-29

申请号：JP33310891

申请日：1991-12-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： KURABAYASHI TAKANAO ,  MANGYO MASAO ,  ONO TAKESHI

IPC: F04B39/00 ,  F16F15/06

Abstract: PURPOSE:To provide a compressor in which vibration is small and an operating sound is quiet by supporting a compression element with two kinds of springs having different spring constant so as to reduce the vibration and a noise of the closed type compressor used in a refrigerator and so on. CONSTITUTION:In a support device to reduce vibration of a compressor, a stay 30 is installed in a part where the vibration of the compressor is the smallest, and is supported with two kinds of soft springs. The device is composed of a spring holder 22, the stay 30, a snubber 24, a soft compression spring 25 and a tensile spring 29 having different spring constant from the compression spring 25.

公开(公告)号：JPH05157048A

公开(公告)日：1993-06-22

申请号：JP31893291

申请日：1991-12-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： MIYOSHI KYOZO ,  ONO TAKESHI ,  IWAI HARUHIKO ,  NAKAOKA MASASHI ,  TSUCHIYA KOICHI ,  YAKUSHI SHUICHI

IPC: F04B39/00

Abstract: PURPOSE:To lower the overall height of a refrigerant compressor by arranging an insulating material which is given drawing between coils of an electric element and a metal part of a compression element. CONSTITUTION:An insulating material 10 which is given drawing is arranged between an electric element 2 elastically supported in a closed container 1 and a compression element 3 and coils 5 and 6 of the electric element 2 and a metal part 9 of the compression element 3. This insulating material 10 is a polyester film which is given drawing. As this polyester film 10 is given drawing, it has elasticity and the insulating material is not dislocated or removed during operation of a refrigerant compressor. In the compressor so constituted, the dimension of a clearance between the coil 5 of the electric element 2 and the metal part 9 of the compression element 3 should be only the thickness of the polyester 10. By this, the overall height of the compressor can be lowered than before.

公开(公告)号：JPH05141347A

公开(公告)日：1993-06-08

申请号：JP30590491

申请日：1991-11-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  ONO TAKESHI ,  KITA ICHIRO ,  YAHIKI JIYUNICHIROU ,  KOYAMA TAKASHI ,  YOSHIMURA TAKAO ,  AKASHI HIRONARI

IPC: F04B35/01 ,  F04B35/00 ,  F04B39/00 ,  F16F15/06

Abstract: PURPOSE:To provide a compressor wherein vibration is suppressed to a very low level even during the starting of vibration and even during operation and production of vibration is reduced to a very low value by disposing proper balance weights to a rotor. CONSTITUTION:Proper balance weights 42 and 43 are disposed to the rotor 34 of the motor of a motor compressor wherein a compressor 31 is disposed to an upper part and a motor 32 to a lower part. A spring mounting plate 35 is fixed to the lower end part of the stator 33 of the motor and a coil spring 44 is arranged between the spring mounting plate and a lower shell 37.

公开(公告)号：JPH0510261A

公开(公告)日：1993-01-19

申请号：JP16274191

申请日：1991-07-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  KITA ICHIRO ,  ONO TAKESHI

IPC: F04B39/00 ,  F16F15/06

Abstract: PURPOSE:To suppress the vibration and noise of a hermetic type compressor which is used in a refrigerator, etc., by forming a double vibration isalation structure. CONSTITUTION:A hermetic type motor-driven compressor is equipped with a support stay 25 arranged between a sealed container 20 and a joint body 23, suspension spring 26 whose one edge is supported on the support stay 25 and the other edge elastically supports the joint body 23, and a stopper 27 fixed on the sealed container 20. Further, a support spring 28 whose one edge is joined with the stopper 78 and the other edge is fitted with the support stay 25 and which elastically supports the joint body 23 and support stay 25 is provided, and a double vibration isolation structure is formed.

公开(公告)号：JPH0481581A

公开(公告)日：1992-03-16

申请号：JP19333090

申请日：1990-07-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI

IPC: F04B39/00

Abstract: PURPOSE:To prevent any insulation failure in a conductive pin connecting part by covering the connecting part between a conductive pin and a lead wire and an insulating member with insulable resin with heat resistance, and making this resin stick fast to an inner surface of a metallic outer ring. CONSTITUTION:A feeding terminal 3 is installed in an opening 2 installed in a part of a hermetically sealed vessel 1. This feeding terminal 3 is provided with a metallic outer ring 6 being fitted in the opening 2 and a conductive pin being supported by this metallic outer ring 6 via a glass sealing part 5, and connected to a lead wire 9 out of an inner part of the hermetically sealed vessel 1. Here, a connecting part between the conductive pin 4 and the lead wire 9 and the glass sealing part 5 are covered with heat resisting insulating rubber 11. Then, this insulating rubber 11 is stuck close to an inner surface of the metallic outer ring 6. With this constitution, any possible insulating failure in the connecting part 4a of the conductive pin 4 is thus preventable.

公开(公告)号：JPH03159545A

公开(公告)日：1991-07-09

申请号：JP29591689

申请日：1989-11-14

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI ,  IWAI HARUHIKO ,  SUZUKI ETSURO ,  KURABAYASHI TAKANAO

IPC: F04C29/00 ,  H02K17/16

Abstract: PURPOSE:To suppress electromagnetic noise regardless of variation of motor load due to variation of pressure in a compression chamber by integrally forming semi-closed grooves in a rotor while arranging even number of entan gling parts having V-type inner cross section with equal pitch. CONSTITUTION:A rotor 3 is provided with semi-closed grooves 3a and semi- closed openings 3b. Core plates 3c having even number of entangling parts 25 having V-type cross section arranged with same pitch and same number of semi-punched grooves 26 arranged with half pitch difference with respect to the entangling part 25 are laminated sequentially. When higher harmonic magnetromotive force of the stator 2 flows on the surface of the rotor 3, mag netic resistance at the opening 3b of the rotor 3 increases considerably as com pared with that at the core part thus increasing the magnetic resistance of the magnetic circuit and suppressing higher harmonics. By such arrangement, a rotary compressor where electromagnetic noise is reduced can be realized.