| 摘要 |
PROBLEM TO BE SOLVED: To obtain a rotary compressor that causes no compressive strain in a stator of a motor arranged in a compressor casing, has high motor efficiency and is suppressed in cost increase.SOLUTION: A rotary compressor comprises a compressor casing, a compression part that is arranged in the compressor casing, compresses a refrigerant sucked in through a suction part and discharges the same from a discharge part, and a motor that is arranged in the compressor casing and drives the compression part via a rotating shaft. In the rotary compressor, representing the inner diameter of a body part of the compressor casing as φDm, the outer diameter of an upper end plate of the compression part as φDb, and the outer diameter of a stator or the motor as φDs, the φDm, φDb and φDs are set to satisfy two inequalities of -0.05 mm≤φDm-φDb≤0.05 mm and 0.1 mm≤φDm-φDs≤0.2 mm. Plural portions circumferentially spaced of the outer peripheral part of the upper end plate and the outer peripheral part of the stator are spot-welded to the body part of the compressor casing.SELECTED DRAWING: Figure 5 |
