Inverter-integrated electric compressor

An inverter-integrated electric compressor having a housing including a inverter accommodating section integrally incorporating therein an inverter apparatus including an inverter circuit board, wherein:

• the inverter circuit board is divided into a main board installed in an upper portion of the inverter accommodating section, and a sub-board installed in a portion below the main board, the sub-board being smaller than the main board;
• the sub-board is mounted with a communication circuit and connected to a communication harness via a connector, and is also connected to the main board via a connection connector and tightened and fixed, via fixing screws, at three or more points arranged in a polygonal pattern on the side of the housing;
• the connector and the connection connector are respectively arranged close to two of the fixing screws, and a communication line, connected to a noise suppression component connected to a frame ground of the sub-board, is arranged between the connector and the connection connector, and a power source line connected to a noise suppression component connected to the frame ground is arranged along a triangular line passing through the vicinity of the fixing screw provided at an other portion other than the portions of the two fixing screws;
• and
• the frame ground of the sub-board is grounded on the side of the housing via the fixing screws.