KR950019209A

KR950019209A - Wear protection device of hermetic electric compressor

Info

Publication number: KR950019209A
Application number: KR1019930028633A
Authority: KR
Inventors: 탁경식
Original assignee: 이헌조; 엘지전자 주식회사
Priority date: 1993-12-20
Filing date: 1993-12-20
Publication date: 1995-07-22

Abstract

본 발명은 밀폐형 전동 압축기의 마모 방지장치에 관한 것으로, 밀폐형 전동 압축기의 크랭크 샤프트(2)가 접촉되는 프레임(6)의 접촉부에 피스톤(4)에 가하여지는 힘(Fd)에 의하여 크랭크 샤프트(2)가 기울어지는 방향으로 미소 경사각(θ)만큼 경사진 경사 접촉면(7a),(7b)을 형성한 구성으로 되어 있으며, 상기 프레임(6)의 경사 접촉면(7a),(7b)은 평편한 경사면 또는 만곡 경사면으로 형성되어 있다. 이러한 본 발명은 크랭크 샤프트(2)의 외경부와 프레임(6)의 내경부가 항상 면접촉을 하면서 회전하므로 오일의 유막이 유지되어 크랭크 샤프트(2)가 마모 문제 없이 원활하게 회전하고, 프레임(6)부에서 발생하는 습동 마찰 소음을 방지할 수가 있게 되어 밀폐형 전동 압축기의 신뢰성을 향상하는 이점이 있다.The present invention relates to a wear protection device of a hermetic electric compressor, wherein the crankshaft (2) is applied by a force (Fd) applied to the piston (4) at the contact portion of the frame (6) to which the crank shaft (2) of the hermetic electric compressor is in contact. ) Is configured to form inclined contact surfaces 7a and 7b inclined by a small inclination angle θ in the inclined direction, and the inclined contact surfaces 7a and 7b of the frame 6 are flat inclined surfaces. Or it is formed with the curved inclined surface. In the present invention, the outer diameter portion of the crank shaft 2 and the inner diameter portion of the frame 6 rotate while always in surface contact, so that an oil film of oil is maintained so that the crank shaft 2 rotates smoothly without abrasion problems, and the frame 6 It is possible to prevent the sliding friction noise generated in the) portion has the advantage of improving the reliability of the hermetic electric compressor.

Description

Wear protection device of hermetic electric compressor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래 밀폐형 전동 압축기의 단면도.1 is a cross-sectional view of a conventional hermetic electric compressor.

제2도는 종래 밀폐형 전동 압축기의 압축 계통도.2 is a compression system diagram of a conventional hermetic electric compressor.

제3도 (가)(나)는 제2도의 요부 확대도.Figure 3 (a) (b) is an enlarged view of the main part of Figure 2.

제4도는 (가)(나)는 본 발명에 의한 프레임과 크랭크 샤프트의 결합 상태도.Figure 4 (a) (b) is a state diagram of the coupling of the frame and the crankshaft according to the present invention.

제5도는 (가)는 본 발명에 의한 프레임의 단면도. (나)는 프레임의 변형예를 보인 단면도.5 is a cross-sectional view of the frame according to the present invention. (B) is sectional drawing which shows the modification of a frame.

Claims

Inclined by the minute inclination angle θ in the direction in which the crankshaft 2 is inclined by the force Fd applied to the piston 4 to the contact portion of the frame 6 to which the crankshaft 2 of the hermetic electric compressor is in contact. A wear prevention device for a hermetic electric compressor, characterized in that formed by forming inclined contact surfaces (7a), (7b).

The wear protection device of a hermetic electric compressor according to claim 1, characterized in that it is a flat inclined surface or a curved inclined surface of the inclined contact surfaces (7a) and (7b) of the frame (6).

※ Note: The disclosure is based on the initial application.