Sealed compressor

Patent metadata

Field	Value
Publication number	US-9506461-B2
Application number	US-201214350318-A
Country	US
Kind code	B2
Filing date	Oct 10, 2012
Priority date	Oct 12, 2011
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

A sealed compressor of the present invention comprises an electric component ( 110 ); a compression component ( 112 ); a sealed container ( 102 ) which accommodates the electric component ( 110 ) and the compression component ( 112 ) and stores lubricating oil ( 104 ) therein; and a suction pipe ( 170 ) which is provided to penetrate a wall portion of the sealed container ( 102 ), and through which a refrigerant gas suctioned into the sealed container ( 102 ) flows; wherein the compression component ( 112 ) includes a compression chamber ( 142 ) formed within a cylinder ( 134 ) and a suction muffler ( 146 ) through which the refrigerant gas flows; wherein the suction muffler ( 146 ) includes a muffling space ( 150 ), an exit pipe ( 154 ), an inlet pipe ( 152 ), whose suction port ( 151 ) opens in a substantially horizontal direction in the interior of the sealed container ( 102 ), a funnel-shaped refrigerant receiver section ( 160 ) provided to surround the suction port ( 151 ); and wherein the suction port ( 151 ) is placed such that its center ( 151 A) is located above than a center ( 160 A) of the refrigerant receiver section ( 160 ).

First claim

The invention claimed is:

1. A sealed compressor comprising:
an electric component;
a compression component actuated by the electric component;
a sealed container which accommodates the electric component and the compression component and stores lubricating oil therein; and
a suction pipe which is provided to penetrate a wall portion of the sealed container, and through which a refrigerant gas suctioned into the sealed container flows;
wherein the compression component includes a compression chamber formed within a cylinder and a suction muffler through which the refrigerant gas flows from an interior of the sealed container toward an interior of the compression chamber;
wherein the suction muffler includes a muffling space, an exit pipe, one end of which opens in the muffling space and the other end of which opens in the compression chamber, an inlet pipe, one end of which opens in the muffling space, and the other end of which opens in a substantially horizontal direction in the interior of the sealed container, the other end being a suction port of the inlet pipe, and a funnel-shaped refrigerant receiver section provided to surround the suction port; and
wherein the suction port is placed such that its center is located above a center of the refrigerant receiver section.

2. The sealed compressor according to claim 1 ,
wherein when viewed from a flow direction of the refrigerant gas at an exit of the suction pipe, a center of the suction pipe conforms to the center of the refrigerant receiver section.

3. The sealed compressor according to claim 1 ,
wherein the inlet pipe is placed such that a dimension of a vertical position of a lower end portion of the suction port which is from an inner bottom surface of the sealed container is twice to 3.5 times as large as a depth of an oil level of the lubricating oil during a stopped state of the sealed compressor.

4. The sealed compressor according to claim 1 ,
wherein the suction port has a structure in which its vertical width is greater than its horizontal width.

5. The sealed compressor according to claim 1 ,
wherein the inlet pipe has a structure in which its cross-sectional area is greater than a cross-sectional area of the exit pipe.

6. The sealed compressor according to claim 1 ,
wherein the center of the suction port is a vertical center of the suction port, and
wherein the center of the refrigerant receiver section is a vertical center of the refrigerant receiver section.

Assignees

• Panasonic Corp
• Panasonic Ip Man Co Ltd

Inventors

• Inagaki Ko
• Ide Terumasa

Classifications

• F04B39/0061 Primary

  using muffler volumes · CPC title

• F04B39/023

  Hermetic compressors · CPC title

• F04B39/0246

  in the rotating shaft · CPC title