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Closed type compressor

A compressor and sealed technology, which is applied in the direction of liquid variable displacement machinery, mechanical equipment, machines/engines, etc., can solve the problems of piston sliding surface loss, production efficiency reduction, and difficulty in maintaining the accuracy of the sphere, and reduce sliding loss , the effect of improving efficiency

Inactive Publication Date: 2009-04-01
ジーエムシーシーアンドウェリングアプライアンスコンポーネントタイランドカンパニーリミテッド
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the production efficiency has decreased
[0016] On the other hand, if the spherical portion and the rod portion are formed integrally, it is difficult to maintain the accuracy of the spherical portion. Therefore, not only loss is likely to occur on the sliding surface of the piston, but also the reliability caused by the progress of wear may be caused. reduction of

Method used

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  • Closed type compressor
  • Closed type compressor
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Examples

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Embodiment Construction

[0054] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0055] figure 1 It is a vertical cross-sectional view of a hermetic compressor according to an embodiment of the present invention. The hermetic compressor of this embodiment is a reciprocating compressor. The piston 4 reciprocates in the cylinder 1 to form a compression mechanism. The cylinder 1 is integrally formed by the bearing part 1a and the frame 1b disposed in the airtight container. The lower part of the frame 1b is provided with a stator 5 and a rotor 6 constituting a motor as a motor, and a crank pin 7a is provided at a position eccentric from the rotation center of the crankshaft 7 .

[0056] The crankshaft 7 extends upward from the lower portion of the frame 1b through the bearing portion 1a of the frame, and the crank pin 7a is provided on the upper side of the frame 1b. The lower part of the crankshaft 7 is directly connected to the rotor 6, and the cr...

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Abstract

To provide a compressor increased in efficiency by reducing sliding loss. In this hermetically sealed compressor, compression elements and electric elements are stored in a hermetically sealed container, and a crankshaft 7 driven by the electric elements is connected to a piston 4 through a connecting rod 2 by a ball joint structure. The ball joint structure comprises an inner spherical surface 4a formed on the piston 4, a spherical body part 2a formed on the connecting rod 2, and a rotation restriction part 10d formed separately from the piston 4 and the connecting rod 2. The rotation restriction part 10d is installed on the piston 4 side but the connecting rod 2 side to restrict the relative rotation of the piston 4 and the connecting rod 2. A ferrous sintered material sealed by an oxide film is used for the piston 4 and the connecting rod 2.

Description

[0001] This application is an application number: 2006101100873, application date: July 31, 2006, and a divisional application of the application titled "hermetic compressor". technical field [0002] The present invention relates to a hermetic compressor used in a refrigerator, a room air conditioner, etc., and more particularly to a hermetic compressor having a reciprocating piston. Background technique [0003] In a hermetic compressor having a reciprocating piston, a structure is used in which a crankshaft and a piston are connected by a connecting rod, and the motion of a rotary shaft in rotary motion is converted into reciprocating motion. Among them, as a connection structure between a piston and a connecting rod, a structure connected by a radial bearing as described in Patent Document 1 is known. [0004] In the structure of patent document 1, a piston pin is used for the connection part of a piston and a connecting rod, and the bearing structure which forms this pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F04B53/14
Inventor 野崎务三品将利佐藤真一长尾智大中岛昌一
Owner ジーエムシーシーアンドウェリングアプライアンスコンポーネントタイランドカンパニーリミテッド
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