公开(公告)号：EP0984162A4

公开(公告)日：2001-04-11

申请号：EP98921729

申请日：1998-05-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI ,  KATAOKA YOSHITO ,  HAYASHI YASUSHI ,  SASANO HIROSHI

IPC: F04B39/00 ,  F04B39/12 ,  F25B31/02 ,  F25B1/00

CPC classification number: F04B39/0072 ,  F04B39/0055 ,  F25B31/02 ,  Y10S181/403

Abstract: An enclosed compressor which has one or more pores (17) made in the shell of a suction muffler (16) made from a material having a low heat conductivity, such as synthetic resin, and communicating with the inside of an enclosed case (1). The amplification of resonance sounds in the space in the enclosed case (1) is restrained by the pores (17) made at the nodes (18) of the vibration mode of the resonance frequency in the space. The coolant insufficient because of the suction loss consequent on the gas passage resistance of the suction passage for introducing a gas of high suction gas density through a suction pipe (12) into a cylinder (8) by coolant circulation is replenished by sucking the coolant gas in the enclosed case (1) through the pores (17).

公开(公告)号：EP1413754A4

公开(公告)日：2005-11-16

申请号：EP02793344

申请日：2002-12-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： YAGI AKIO ,  UMEOKA IKUTOMO ,  MATSUMOTO TSUYOSHI ,  HAYASHI YASUSHI ,  MARUYAMA TOMIO

IPC: F04B39/00 ,  F04B39/02

CPC classification number: F04B39/0061 ,  Y10S181/403

Abstract: A closed compressor, comprising a suction muffler forming a muffling space having two rooms, a communication space allowing these two rooms to communicate with each other, a first communication passage allowing a movable valve to communicate with the muffling space and openably extending into the muffling space, a second communication passage allowing a closed container to communicate with the muffling space and openably extending into the muffling space, and the opening parts of the first and second communication passages in the muffling space to form a resonance muffler having an opening in either of two rooms and a columnar resonance frequency in the other of the two rooms matches that in the closed container, whereby the closed compressor capable of reducing noise generated therefrom and providing a high compression efficiency can be provided.

公开(公告)号：EP1384890A4

公开(公告)日：2005-06-15

申请号：EP02722880

申请日：2002-04-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： NISHIHARA HIDETOSHI ,  HAYASHI YASUSHI ,  MARUYAMA TOMIO ,  MATSUMOTO TSUYOSHI ,  UMEOKA IKUTOMO ,  YAGI AKIO

IPC: F04B39/00 ,  F04B39/02

CPC classification number: F04B39/0061 ,  F04B39/023

Abstract: A low noise hermetic electric compressor capable of stably supplying oil to a compression chamber, comprising an oil supply mechanism part having a closed container, an electric element part, a compression element part installed on the upper part of the electric element part and driven by the electric element part, and an oil reserving part and allowing to flow out the oil in the oil reversing part to supply to the closed container of the compression element part and a suction muffler part communicating with a refrigerant sucking part for sucking refrigerant to the compression element part and formed in a box body with a specified space volume, wherein the suction muffler part is positioned on the lower side of the position where oil is allowed to flow out to supply into the closed container, and at least one oil sucking hole for sucking oil of a specified flow is provided in the box body.

Abstract translation: 本发明提供一种能够以低噪声水平稳定地向压缩室供给油的密闭式电动压缩机。 密闭式电动压缩机具有密闭容器，电气元件，设置在电气元件上并由电气元件驱动的压缩元件和储油器。 密闭式电动压缩机还具有供油机构，用于将油从储油器供给到密闭容器内的压缩元件，吸入消声器与用于将制冷剂吸入压缩元件的制冷剂吸入部连通，形成为 具有预定空间体积的盒体。 吸入消声器位于将油供给到密闭容器内的位置的下方，箱体具有至少一个用于吸入预定量的油的吸油口。

公开(公告)号：JP2003172265A

公开(公告)日：2003-06-20

申请号：JP2001371248

申请日：2001-12-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： YAGI AKIO ,  UMEOKA IKUTOMO ,  MATSUMOTO TAKESHI ,  HAYASHI YASUSHI ,  MARUYAMA TOMIO

IPC: F04B39/00 ,  F04B39/02

Abstract: PROBLEM TO BE SOLVED: To enhance a muffling effect in a muffling space of a suction muffler. SOLUTION: The suction muffler forming a muffling space is provided with two chambers; a communication space communicating these two chambers; a first communication passage for communicating a movable valve and a muffling space and extending and opened into the muffling space; a second communication passage for communicating the inside of a closed container and the muffling space and extending and opened into the muffling space; and openings in the muffler space of the first communication passage and the second communication passage. Since it is opened to any one of two chambers and the other of the two chambers forms a resonance type muffler coincident with a columnar resonance frequency in the closed container, a pulse of pressure of a coolant gas generated when the coolant gas is suctioned to a compression chamber is damped by the resonance muffler. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2000303959A

公开(公告)日：2000-10-31

申请号：JP11206999

申请日：1999-04-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI YASUSHI

IPC: F04B39/12

Abstract: PROBLEM TO BE SOLVED: To simplify a welding process of a discharge pipe with a discharge connection pipe, and to enhance its quality in a closed type electrically driven compressor installed in a refrigerator and the like. SOLUTION: In this device, an expanded pipe part 6a is provided for the end part of a discharge connection pipe 6, the discharge connection pipe 6 is projected outward from a discharge pipe 5, and the discharge pipe 5 is brazed with the discharge connection pipe 6. This constitution thereby enables the discharge pipe 5 to be welded with the discharge connection pipe 6 after a closed type container 1 is assembled, reduces working man-hours enhances operability, prevents fluxes and foreign matters from ingressing into the closed type container, and also enhances its quality.

公开(公告)号：JPH10159729A

公开(公告)日：1998-06-16

申请号：JP32376396

申请日：1996-12-04

Applicant: MATSUSHITA REFRIGERATION

Inventor： YAHIKI JIYUNICHIROU ,  IDE TERUMASA ,  MORI YUJI ,  HAYASHI YASUSHI

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To provide a structure for regulating a plurality of lead wires so that they do not come near the peripheral parts in the process of assembling hermetic electric compressor, although much labor has been expended for regulating them. SOLUTION: Since a suction muffler A8 is provided with a cutout arm 9 whose opening is smaller than the diameter a bunch of lead wires A7 and which has a warped part for preventing the withdrawal of the lead wires A7 and which grips the lead wires A7 as a group, the bunch of lead wires A7 are inserted into the cutout arm 9 with good workability. Since the cutout arm 9 prevents the withdrawal of the lead wires A7 by the warped part thereof to grip them as a group without making them come apart, the lead wires A7 are hard to come near the peripheral parts. Therefore, the adjustment of a plurality of lead wires A7 not to make them come near the peripheral parts can be omitted in the process of assembling a hermetic electric compressor.

公开(公告)号：JP2002332965A

公开(公告)日：2002-11-22

申请号：JP2001136033

申请日：2001-05-07

Applicant: MATSUSHITA REFRIGERATION

Inventor： NISHIHARA HIDETOSHI ,  HAYASHI YASUSHI ,  MARUYAMA TOMIO ,  MATSUMOTO TAKESHI ,  UMEOKA IKUTOMO ,  YAGI AKIO

IPC: F04B39/00 ,  F04B39/02

Abstract: PROBLEM TO BE SOLVED: To prevent wearing of a sliding portion and lowering in freezing performance due to incomplete sealing, by stably supplying a suitable amount of oil into a compressing chamber and sufficiently lubricating between a piston and the compressing chamber, in a sealed type electric compressor. SOLUTION: Oil is made to flow down from a cylinder block to a suction muffler upper surface 148. An oil sucking hole 143 and an oil reservoir 150 are provided on an electric element side surface 146, thereby controlling the flow of the oil dripping from the cylinder block to the suction muffler 140 and stably supplying a suitable amount of the oil into a compressing chamber.

公开(公告)号：JPH10318136A

公开(公告)日：1998-12-02

申请号：JP13077597

申请日：1997-05-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONO TAKESHI ,  HAYASHI YASUSHI ,  KATAOKA YOSHITO

IPC: F04B39/00 ,  F04B39/12 ,  F25B31/02

Abstract: PROBLEM TO BE SOLVED: To enhance the volumetric efficiency so as to improve the refrigerating capacity by decreasing the loss in suction caused by a flow resistance in a suction passage for leading sucked gas having a high density in a coolant circulating volume from a suction pipe into a cylinder. SOLUTION: In a hermetic compressor, a suction muffler 16 is made of a material such as a synthetic resin having a low thermal conductivity, and in its outer shell more than one of small holes 17 communicated with the inside 1 of a hermetic container 1 are formed. These small holes 17 being located at positions of nodes of a vibration mode at a resonant frequency in the inside space of the hermetic container 1, and accordingly, the amplification of resonating sound in the inside space of the container 1 is restrained while the gas having a high suction density due to the coolant circulating quantity is replenished with coolant gas which is sucked into a space in a cylinder from a suction pipe 12 through the small holes 17, for a deficiency of the coolant caused by a suction loss due to a gas flow resistance in a suction passage through which the gas is led from the suction passage 12 into the cylinder. Thus, the suction loss can be decreased, and accordingly, a hermetic compressor which can decrease its suction loss and can enhance the refrigerating function is provided.

公开(公告)号：JPH10169555A

公开(公告)日：1998-06-23

申请号：JP32641996

申请日：1996-12-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI YASUSHI

IPC: F04B39/00 ,  F04B39/12

Abstract: PROBLEM TO BE SOLVED: To improve assemblage at low cost when an intake muffler is fixed by push-pressing tip ends of projection parts after projection parts of a cylinder head are inserted into holes of a steel belt, and caulking the steel belt. SOLUTION: Two projection parts 5a formed integrally with a cylinder head 5 are arranged holding an inserting hole 10, holes 6a whose diameter is smaller than that of a projection part 5a are arranged on a steel belt 6 having a spring performance, and are arranged so as to insert around the projection parts 5a. After projection parts 5a of the cylinder head 5 are inserted into the holes 6a of the steel belt 6, tip ends of the projection parts 5a are push-pressed, and thereby, the steel belt 6 is caulked, a communicating pipe 4a is brought into pressure-contact with the inserting hole 10 by the spring performance of the steel belt 6, and thereby, an intake muffler 4 is surely fixed to the cylinder head 5. Since the cylinder head 5 is formed integrally with the projection parts 5a by aluminum die-cast, the number of part items are reduced. It is thus possible to reduce a cost and improve workability by reducing the number of the part items.

公开(公告)号：JP2001280243A

公开(公告)日：2001-10-10

申请号：JP2000093185

申请日：2000-03-30

Applicant: MATSUSHITA REFRIGERATION

Inventor： HORIGUCHI TAKAFUMI ,  IDE TERUMASA ,  HAYASHI YASUSHI ,  OKAMOTO TAKAYUKI ,  WADA SATOSHI

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To reduce noise of a small-size compressor by making a bottom face of a sealed vessel spherical and increasing rigidity of the bottom face without changing the size of the compressor. SOLUTION: The entire bottom face of the sealed vessel is made spherical, and only snub bar mounting parts on the side wall are circularly extruded in a vertical direction to project, so that the entire bottom face can be made spherical with the overall height of the sealed vessel remaining unchanged, thus increasing the rigidity of the bottom face. Consequently, the noise is reduced.