Inverter module and integrated-inverter electric compressor using the same

摘要

An inverter module and an integrated-inverter electric compressor using the same, which can eliminate noise interference, noise leakage, and the like attributable to a smoothing capacitor accommodated therein and which can be reduced in size and weight is provided. An inverter module (11) includes a resin module case (17); a power system board (15) provided on a bottom side of the module case (17); and a control board (19) provided on an upper side of the module case (17). A smoothing capacitor (18) connected to a power supply line for the power system board (15) is incorporated into the module case (17), and the smoothing capacitor (18) is electromagnetically shielded with respect to the power system board (15) and the control board (19).

主权项

1. An inverter module comprising: a resin module case; a power system board provided on a bottom side of the module case, the power system board converting DC power supplied from a power source to AC power to apply the power to an electric motor; and a control board provided on an upper side of the module case, the control board controlling the AC power applied to the electric motor, wherein
a smoothing capacitor connected to a power supply line for the power system board is incorporated into the module case and is disposed in a space between the power system board and the control board, and one electromagnetic shield is sandwiched between the smoothing capacitor and the power system board, and another electromagnetic shield is sandwiched between the smoothing capacitor and the control board, and the electromagnetic shields are configured to block an electromagnetic noise from the smoothing capacitor to the power system board and the control board.