JPH02107781U

JPH02107781U -

Info

Publication number: JPH02107781U
Application number: JP1509589U
Authority: JP
Priority date: 1989-02-10
Filing date: 1989-02-10
Publication date: 1990-08-28

Description

[Brief explanation of drawings]

第１図はこの考案によるスクロール圧縮機の縦
断面図、第２図は第１図の下部ブラケツトの下面
図、第３図は第１図の固定子の下面図、第４図は
第１図の下部ブラケツトと固定子の分解斜視図、
第５図は従来のスクロール圧縮機の縦断面図、第
６図は第５図のスクロール圧縮機を示す下部容器
は断面した下面図である。１…固定スクロール、２…揺動スクロール、５
…圧縮室、６…主軸、６ａ…大径部、６ｃ…偏心
給油孔、６ｄ…バランサ、８…上部ブラケツト、
１０…電動機の回転子、１２…密閉容器、１５…
油だめ、１８…揺動軸受、１９…上部スラスト軸
受、２０…上部軸受、２１…下部スラスト軸受、
２２…下部軸受、２５…潤滑油、３９…下部ブラ
ケツト、３９ａ…バランサ室、３９ａ…排油孔、
４１…電動機の固定子、４１ａ…固定子鉄心、４
１ｄ…排油戻し穴。なお、図中同一符号は同一又
は相当部分を示す。 Fig. 1 is a vertical sectional view of the scroll compressor according to this invention, Fig. 2 is a bottom view of the lower bracket shown in Fig. 1, Fig. 3 is a bottom view of the stator shown in Fig. 1, and Fig. 4 is a bottom view of the stator shown in Fig. 1. An exploded perspective view of the lower bracket and stator of
FIG. 5 is a longitudinal sectional view of a conventional scroll compressor, and FIG. 6 is a bottom view of the scroll compressor of FIG. 5, with the lower container cut away. 1... Fixed scroll, 2... Oscillating scroll, 5
...Compression chamber, 6...Main shaft, 6a...Large diameter section, 6c...Eccentric oil supply hole, 6d...Balancer, 8...Upper bracket,
10...Rotor of electric motor, 12...Airtight container, 15...
Oil sump, 18... Swing bearing, 19... Upper thrust bearing, 20... Upper bearing, 21... Lower thrust bearing,
22... Lower bearing, 25... Lubricating oil, 39... Lower bracket, 39a... Balancer chamber, 39a... Oil drain hole,
41... Stator of electric motor, 41a... Stator core, 4
1d...Drain oil return hole. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A fixed scroll, an oscillating scroll that is combined with the fixed scroll to perform an oscillating motion, and compresses and discharges fluid in a compression chamber formed between the two, and an oscillating scroll that is connected to the oscillating scroll in a large diameter section at the top. and an upper bracket having the fixed scroll fixed to the upper part thereof, supporting the oscillating scroll from below through a thrust bearing, and supporting the large diameter portion of the main shaft through an upper bearing. A balancer chamber is formed at the top to surround the balancer section at the bottom of the large diameter part of the main shaft, and an oil drain hole is provided leading from this balancer chamber to the outside part. a lower bracket that supports a lower portion of the diameter portion via a lower thrust bearing and supports an intermediate portion of the main shaft via the lower bearing;
The stator of the electric motor fixed to the lower end of the lower bracket, the rotor of the electric motor fixed to the lower side of the main shaft, and the outer part of the lower bracket are fitted and fixed into the inner peripheral part, and each of the above components is assembled. A sealed container with lubricating oil stored in an oil sump at the bottom, and a sealed container provided at the lower end of the main shaft, allowing the lubricating oil in the oil sump to rise to an eccentric oil supply hole provided in the main shaft and supply each of the above bearings. A scroll compressor equipped with an oil pump means for supplying oil, characterized in that a drain oil return hole communicating with the oil drain hole is provided in the stator core of the motor in contact with the lower end of the lower bracket in the axial direction. scroll compressor.