Vibration-proof structure for electric circuit of electric compressor

In an inverter-integrated electric compressor, provided is a vibration-proof structure for an electric circuit, capable of reducing the weight of the compressor at low cost and having an excellent productivity. An electric compressor is used in a vehicle air conditioner and integrally equipped with an electric circuit for controlling a motor for driving a compression mechanism and the driving of the motor. The vibration-proof structure for the electric circuit of the electric compressor is configured such that electronic components (including a coil and a capacitor constituting a noise filter and a smoothing capacitor) required for vibration-proof reinforcement are mounted on a special printed board (24) and an assembly (26) molded by a resin (25) is assembled in the housing of the compressor. This drastically reduces the amount of the resin used for the molding, can reduce the weight of the compressor at low cost, and improves productivity.