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Hermetic compressor and manufacturing method thereof

A compressor, airtight technology, applied in the direction of mechanical equipment, machine/engine, liquid variable capacity machinery, etc., can solve the problem of compressor 501 shutdown and so on

Active Publication Date: 2011-12-21
PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fine metal powder 6B lodged in the sliding part of the compression element 2 can cause the compressor 501 to stop

Method used

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  • Hermetic compressor and manufacturing method thereof
  • Hermetic compressor and manufacturing method thereof
  • Hermetic compressor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] figure 1 is a sectional view of a hermetic compressor 1001 according to an exemplary embodiment of the present invention. The airtight container 101 is configured to store lubricating oil 103 and is filled with refrigerant gas 105 . The compression element 107 is a reciprocating type compression element including a cylinder 111 defining a compression chamber 109, a piston 113 inserted into the compression chamber 109 to reciprocate within the chamber, a shaft 121 pivotally supported by a bearing 115 of the cylinder 111, and A connecting rod 123 connecting the shaft 121 with the piston 113 . The shaft 121 includes a main shaft 117 and an eccentric shaft 119 . A connecting rod 123 connects the eccentric shaft 119 of the shaft 121 with the piston 113 . The shaft 121 rotates about a rotation axis 121C.

[0047] The motor element 125 is driven by an inverter circuit, and includes a stator 127 fixed below the cylinder block 111 and a rotor 129 fixed to the main shaft 117...

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PUM

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Abstract

A hermetic compressor includes a hermetic container arranged to store lubricating oil, a motor element accommodated in the hermetic container, an oil-feeding mechanism arranged to carry the lubricating oil, and a centrifugal pump arranged to carry the lubricating oil to the oil-feeding mechanism. The centrifugal pump includes a cylindrical portion having a hollow opening at the opening, and an aperture plate having a suction aperture formed therein. The aperture plate has an inner edge facing the suction aperture, and an outer edge of the aperture plate contacting an inner surface of the cylindrical portion. A portion of the aperture plate between the inner edge and the outer edge of the aperture plate is positioned more outward from the cylindrical portion than the inner edge and the outer edge are. This hermetic compressor does not produce fine metal powder during manufactured, having high reliability.

Description

technical field [0001] The present invention relates to a hermetic compressor for use in a freezer such as a domestic refrigerator, and to a method of manufacturing the compressor. Background technique [0002] Hermetic motor-driven compressors used in freezing appliances such as domestic refrigerators are currently required to have less power consumption, lower noise, lower cost, and higher reliability. [0003] Figure 4 is a cross-sectional view of a conventional hermetic compressor 501 described in Patent Document 1. The airtight container 1 accommodates the compression element 2 and the motor element 3 therein. Lubricating oil 4 is stored in the lower part of the airtight container 1 . The shaft 6 includes a main shaft 7 and an eccentric shaft 8 . The eccentric shaft 8 of the shaft 6 is connected to the piston 10 via a connecting rod 9 . The main shaft 7 is supported by bearings 11 . The lower end of the shaft 6 has an opening 6A formed therein. The insertion port...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/02
CPCF04B39/0253F04B39/0261Y02B10/50F04B39/00F04B39/10
Inventor 冈本贵之
Owner PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE