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公开(公告)号：JPS6262088A
公开(公告)日：1987-03-18
申请号：JP19883585
申请日：1985-09-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： YANASE SEIGO
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公开(公告)号：JP2002048062A
公开(公告)日：2002-02-15
申请号：JP2000237080
申请日：2000-08-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： YAHIKI JIYUNICHIROU , SASANO HIROSHI , YANASE SEIGO , NAGAO TAKAHIDE
IPC: F04B39/00
Abstract: PROBLEM TO BE SOLVED: To reduce the noise of a closed electric compressor by reducing the pulsation of the high-pressure gas inexpensively. SOLUTION: A first muffler part integrally formed with a block and a second muffler part are communicated with each other through a hole having two steps or more of different diameter smaller than that of a pass hole. The pulsation of the high-pressure gas is thereby sufficiently reduced so as to reduce the noise inexpensively.
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公开(公告)号：JP2001317460A
公开(公告)日：2001-11-16
申请号：JP2000134597
申请日：2000-05-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAGAO TAKAHIDE , SASANO HIROSHI , YANASE SEIGO , YAHIKI JIYUNICHIROU
Abstract: PROBLEM TO BE SOLVED: To reduce a cost, and to realize high efficiency in a hermetic compressor. SOLUTION: A bearing 9 for journalling a crankshaft 10 is pressed in and fixed to a block 14 to obviate a bolt for fixing the bearing 9 to the block 14 so as to reduce the number of part items. The bearing 9 for journalling the crankshaft 10 is composed of a material having a low friction coefficient to reduce frictional resistance between the crankshaft 10 and the bearing 9 so as to improve abrasion resistance as well as to reduce a sliding loss.
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公开(公告)号：JP2001073947A
公开(公告)日：2001-03-21
申请号：JP24473699
申请日：1999-08-31
Applicant: MATSUSHITA REFRIGERATION
Inventor： YANASE SEIGO , SASANO HIROSHI , YAHIKI JIYUNICHIROU , NAGAO TAKAHIDE
IPC: F04B39/00
Abstract: PROBLEM TO BE SOLVED: To reduce rubbing vibration between a snub bar and a coil spring caused by vibration source of an electric compressing element while withstanding impact at transportation and the like. SOLUTION: A shell snub bar 25 contacts to a snub bar pin 11 before a whole coil spring 4 closely contacts. A resin snub bar 10 can be thereby prevented from directly colliding with the shell snub bar 25 caused by impact at transportation and the like. Since the snub bar pin 11 is adhered to supports 18 by caulking, sputter and oxidation are prevented to do away with re-washing of parts when the snub bar pin 11 is adhered to the supports 18 while productivity can be improved by supplying the parts itself to a mass production assembly line without re-washing, and there is no obstacle in adherence of the supports 18 to a stator 6 by preventing a caulking part 12 from being projected from a plain 13.
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Patent Agency Ranking
公开(公告)号：JP2001073946A
公开(公告)日：2001-03-21
申请号：JP24473599
申请日：1999-08-31
Applicant: MATSUSHITA REFRIGERATION
Inventor： SASANO HIROSHI , YANASE SEIGO , YAHIKI JIYUNICHIROU , NAGAO TAKAHIDE , IWAI HARUHIKO
IPC: F04B39/00
Abstract: PROBLEM TO BE SOLVED: To reduce noise by suppressing pulsating pressure resonance in an intake muffler and pulsating pressure propagation into a sealed vessel while reducing the number of parts of the intake muffler to simplify a structure. SOLUTION: In a sealed vessel provided with an electric element and a compressing element inside thereof, the intake muffler 16 where refrigerant passes is provided with a communicating pipe 17 communicated with a discharge port 15 of the intake muffler 16 and a tail pipe 19 communicated with the other intake port 18 of the intake muffler 16, and the communicating pipe 17 is formed along an approximately crosswise symmetrical center line S of the intake muffler 16 while the tail pipe 19 is formed in parallel with the communicating pipe 17. Amplification of pulsating pressure of the resonance is minimized in the communicating pipe 17 while propagation of the pulsating pressure into the sealed vessel is reduced in the tail pipe 19 by using these structure, and the communicating pipe 17 and the tail pipe 19 can be integrally formed.
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公开(公告)号：JPH09228960A
公开(公告)日：1997-09-02
申请号：JP3157096
申请日：1996-02-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： IIZUKA TATSUYUKI , YANASE SEIGO
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of noise due to resonance of a discharge pipe by providing an inverter device which grasps a frequency at which the discharge pipe resonates in advance and operates an electrical element at a specific frequency at which the discharge pipe does not resonate. SOLUTION: A capacity control type reciprocating compressor A consists of a hermetic vessel 1, an electric element M built in the sealed vessel 1, and a reciprocating compression element 6. The electrical element M is operated by frequencies of power supply 11 for commercial use or frequencies by an inverter device 12. Moreover, resonance generated in a discharge pipe 9 due to the operation of the power supply 11 for commercial use is prevented by a coil spring 10. In the inverter device 12, the discharge pipe 9 is set to a specific frequency which is different from an operation frequency and does not resonate. In this way, even if frequency is dropped to the specific frequency at the time of low load for operation, the discharge pipe 9 does not generate resonance noise, and power to be consumed is saved.
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公开(公告)号：JPS6458828A
公开(公告)日：1989-03-06
申请号：JP21569587
申请日：1987-08-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： YANASE SEIGO
Abstract: PURPOSE:To prevent a side wall of a supporting member for use with a compressor for a refrigerator from being expanded even upon application of a load and thereby prevent cracking of the side wall, by making an outer diameter of the side wall at its central portion smaller than that at its upper and lower portions. CONSTITUTION:A side wall 11 of a cylindrical portion 4 of a supporting member 1 formed of an elastic material has a central portion 11b having an outer diameter smaller than that of an upper portion 11a and a lower portion 11c. With this structure, even when a load is applied to a mounting portion 2 of the supporting member 1, the central portion 11b of the cylindrical portion 4 is prevented from being expanded outside. Accordingly, it is possible to prevent the generation of crack in the side wall due to stress concentration.
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公开(公告)号：JPH11303746A
公开(公告)日：1999-11-02
申请号：JP10910698
申请日：1998-04-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： YANASE SEIGO
Abstract: PROBLEM TO BE SOLVED: To effectively prevent a leakage of magnetic flux from a permanent magnet by providing end plates made of a nonmagnetic material between balance weights and a permanent magnet, and forming caulking pins caulking the balance weights to at least one end of a rotor with a nonmagnetic material. SOLUTION: When this motor-driven compressor is operated, a crankshaft 5 is rotated as a rotor 4 is rotated, a piston 6 is reciprocated, and gas is compressed and discharged through a discharge pipe. A permanent magnet 7 is internally provided in the rotor 4, and balance weights 9 made of a ferromagnetic material are fitted to the rotor 4. The balance weights 9 are fixed to both ends of the rotor 4 by caulking pins 8 made of aluminum which is a nonmagnetic material. End plates 10 made of a nonmagnetic material are provided between the permanent magnet 7 and the balance weights 9 made of the ferromagnetic material, and a leakage of magnetic flux from the permanent magnet 7 is effectively prevented in cooperation with the caulking pins 8 made of the nonmagnetic material.
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公开(公告)号：JPS6368796A
公开(公告)日：1988-03-28
申请号：JP21230486
申请日：1986-09-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： YANASE SEIGO
IPC: F04C28/06
Abstract: PURPOSE:To prevent the deterioration of radiant efficiency of a condenser, by arranging a high pressure side inlet port at the side of a side plate, thereby preventing the lubricating oil attaching on the surface of the side plate from being induced by a high-temperature and high pressure gas flow to mix into a refrigerant circuit. CONSTITUTION:When a compressor 1 is run, high-temperature, high pressure gas in a closed vessel 2 is delivered into a condenser 31 and an evaporator 16, which form a refrigerant circuit, from an inlet port 23 and an outlet port 25 on the high pressure side in addition to a discharge pipe 25. At this time, mist of lubricating oil 32 contained in the gas attaches on the surface 6a of a side plate 6, runs down to around the high pressure side inlet port 23, and flows into the delivery pipe 24. As a result, the lubricating oil 32 is mixed into a liquid refrigerant, thereby lower radiating efficiency of the condenser 31. To cope with this, the high pressure side inlet port 23 is arranged at a side surface 6c of the side plate 6. With this contrivance, the inlet port is prevented from being situated on the surface 6a of the side plate 6, and consequently the lubricating oil 32 is prevented from flowing into the refrigerant circuit.
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