Electric compressor having electrical connection unit, and stator assembly for the same

An electric compressor comprising:

• a compression unit configured to compress working fluid;
• an electrically-driven unit configured to drive the compression unit, and comprising a stator, and a rotor rotatably disposed inside the stator;
• a controller configured to control operation of the electrically-driven unit;
• a housing in which the stator of the electrically-driven unit is fixed, and which includes a partition provided to define a motor receiving space and a controller receiving space;
• and
• a plurality of electrical connection pins configured to pass through the partition and electrically connect the electrically-driven unit with the controller,
• a mounting plate to which the plurality of electrical connection pins are fixed, and which has a surface facing the housing, wherein the mounting plate is fixed relative to the stator;
• a cover having a first surface fixed to the stator, and a second surface into and to which the mounting plate is inserted and fixed;
• wherein the plurality of electrical connection pins are disposed on the partition in a circular region having a diameter less than an outer diameter of the stator.

A stator assembly comprising:

• a stator core;
• a coil wound around the stator core;
• a plurality of electrical connection pins electrically connected with the coil, and extending in a longitudinal direction of the stator core;
• and
• a fixing unit configured to fix the plurality of electrical connection pins such that the electrical connection pins face one end of the stator core
• a cover having a first surface fixed to the stator, and a second surface into and to which the mounting plate is inserted and fixed
• wherein the fixing unit comprises a mounting plate to which the plurality of electrical connection pins are fixed;
• and
• wherein the fixing unit comprises a cover configured to fix the mounting plate to the one end of the stator core.