Current sensor assembly and inverter assembly having a plurality of sensors

An inverter assembly for an integrated power device, the inverter assembly comprising:

• a bulk capacitor;
• a control board;
• and
• a current sensor assembly including:
• a housing;
• a plurality of shields located in the housing, each shield having an inner space open toward a top of the housing;
• a plurality of spaced apart bus bars configured to have three phase current applied thereto located in the housing, each bus bar extending through a corresponding shield of the plurality of shields;
• a printed circuit board located in the housing;
• and
• a plurality of current sensors located on the printed circuit board, each current sensor being configured to measure a current applied to a corresponding bus bar of the plurality of bus bars, and each current sensor being spaced from the corresponding bus bar in the inner space of the corresponding shield, and
• wherein each shield includes:
• a base located at an inner side of the housing;
• and
• a pair of protruding sides extending from opposite ends of the base,
• wherein each bus bar is located near the base of the corresponding shield and extends between the pair of protruding sides of the corresponding shield,
• wherein a center of each current sensor is centrally located between the pair of protruding sides of the corresponding shield,
• wherein, for each shield, a first axis is defined in a direction in which the corresponding bus bar extends over the base of the shield, a second axis is defined in a direction extending between the pair of protruding sides of the shields, and a third axis is defined in a direction in which the pair of protruding sides extend from the bases toward the printed circuit board, and
• wherein the center of each current sensor is spaced apart from a center line of the corresponding bus bar by a fourth distance along the second axis, and
• wherein the center line of the corresponding bus bar is spaced apart from a center between the pair of protruding sides of the corresponding shield by the fourth distance along the second axis.