HERMETIC TYPE COMPRESSOR

PROBLEM TO BE SOLVED: To mitigate welding deformation occurred by welding and fixing a sub-bearing, prevent temporary reduction of oil surface and prevent oil shortage at each of the bearings.SOLUTION: A hermetic type compressor comprises: an electric motor for generating a rotating force; a compression mechanism composed of a fixed scroll and a turning scroll so as to compress working fluid; a crank shaft for transmitting a rotating force of the electric motor to the compression mechanism; a bearing for supporting the crank shaft; an oil reservoir chamber arranged at a bottom part to store oil; and a hermetic container storing the electric motor, the compressor mechanism, the crank shaft, the bearing and the oil reservoir chamber. The bearing comprises a main bearing for supporting the crank shaft at the compressor mechanism and a sub-bearing for supporting the crank shaft at a side opposite to the compressor mechanism. A supporting member for welding and fixing the sub-bearing is fixed in the hermetic container, and has arc-shaped holes 300a at positions engaging with an inner diameter part 17d of a stator near a sub-bearing welding and fixing part 301 or more inside part than that of the inner diameter 17d of the stator.SELECTED DRAWING: Figure 2(a) 【課題】副軸受を溶接固定する事により発生する溶接変形を緩和させると共に、一時的な油面低下を防止し、各軸受部の油切れを防止する。【解決手段】回転力を発生させる電動機部と、固定スクロールと旋回スクロールからなり、作動流体を圧縮する圧縮機構部と、電動機部の回転力を前記圧縮機構部に伝達するクランク軸と、クランク軸を支持する軸受と、底部に設けられ、油を貯溜する油貯溜室と、電動機部、圧縮機構部、クランク軸、軸受、および、油貯溜室を収納した密閉容器と、を備えた密閉型圧縮機において、軸受は、圧縮機構部側でクランク軸を支持する主軸受と、圧縮機構部側と反対側でクランク軸を支持する副軸受と、からなり、副軸受を溶接固定する支持部材は、密閉容器内に固定されるとともに、副軸受溶接固定部３０１近傍の固定子の内径１７ｄに掛かる位置または固定子の内径１７ｄよりも内側に円弧状の穴３００ａを設けたことを特徴とする。【選択図】図２（ａ）