Compressor, accumulator, and refrigeration cycle apparatus

A compressor, comprising:

• a cylindrical sealed container;
• a compression mechanism that is accommodated in the sealed container and is configured to compress a refrigerant;
• an electric motor that is accommodated in the sealed container and is configured to drive the compression mechanism;
• an accumulator disposed outside the sealed container and connected to a suction side of the compression mechanism, the accumulator comprising:
• a cylindrical container,
• a partition plate that is provided within the container and that divides an internal space of the container into a refrigerant inlet chamber and a refrigerant outlet chamber,
• an inlet pipe fixed to the container and connected to the refrigerant inlet chamber,
• at least one communication pipe that penetrates the partition plate and places the refrigerant inlet chamber in communication with the refrigerant outlet chamber, and
• at least one outlet pipe fixed to the container and communicating with the refrigerant outlet chamber;
• and
• a holder provided on the sealed container to fix the accumulator by welding, wherein
• the holder is positioned at a height that is equal to or higher than an upper end of the partition plate and that is equal to or lower than an upper end of the communication pipe.