Integrated-inverter electric compressor

An integrated-inverter electric compressor in which an inverter accommodating section is provided on the periphery of a housing accommodating an electric motor and a compression mechanism, an inverter that supplies driving power to the electric motor is installed in the inverter accommodating section, and the accommodating section opening is tightly sealed with a cover, wherein

• a groove in which a liquid sealant is to be filled is provided in a flange around the opening of the inverter accommodating section;
• the liquid sealant filled in the groove is cured to tightly seal a joint surface between the flange and the cover;
• and when the width of a joint surface formed at the inner periphery of the groove in the flange is L1 and the width of a joint surface formed at the outer periphery of the groove is L2, L1<L2 holds;
• wherein the flange is provided at two opposite sides adjacent of the groove,
• wherein the flange is configured such that the joint surface formed at the inner periphery of the groove is lower than the joint surface formed at the outer periphery of the groove,
• wherein the flange has a second groove, which is smaller than the groove, in the lower joint surface formed at the inner periphery of the groove.