Compressor having compression element welded to closed container at three or more welding points and suction tube neither parallel nor perpendicular to a straight line connecting any two of the welding points

A compressor comprising:

• a closed container;
• a compression element located in the closed container;
• and
• a motor located in the closed container, the motor being arranged to drive the compression element via a shaft,
• the closed container and the compression element being welded together at at least three welding points, the closed container having a suction port with a suction tube fitted to the suction port of the closed container with the suction tube being arranged and configured to suck a refrigerant gas, and the suction tube having a central axis that lies in a plane which is orthogonal to a central axis of the closed container and that passes through the suction port,
• the welding points being arranged such that straight lines connecting all combinations of any two of the welding points are neither parallel to the central axis of the suction tube nor perpendicular to the central axis of the suction tube, and are angled more than 5 degrees relative to the central axis of the suction tube,
• there being an even number of the welding points with the even number being at least six, and all of the welding points being divided into at least two groups with each of the last two groups including an identical number of the welding points;
• the welding points being spaced from each other to form a plurality of central angles between the welding points, and a distribution of the central angles being formed between the welding points of each of the at least two groups, with distributions being identical amongst all of the at least two groups;
• and
• the welding points of each of the at least two groups being arranged in a circumferential direction about the central axis of the closed container such that the welding points of one of the at least two groups alternate with corresponding welding points of at least another group.