Abstract: A back door structure of a vehicle capable of reducing noise in a vehicle interior by suppressing vibration of an outer panel while reducing the weight and costs includes an outer panel and an inner panel. The inner panel includes a horizontal frame part, side-direction frame parts, and connecting parts. The horizontal frame part and each of the side-direction frame parts are mutually connected. The connecting part extends only from one end part on an opening part side in a vertical width direction of the horizontal frame part, the connecting part extends only from one end part on an opening part side in the vertical width direction of the side-direction frame part, and the connecting part extends only from one end part on an opening part side in the vertical width direction of the side-direction frame part. The connecting parts are respectively connected to the outer panel.

Abstract: A back door that reduces noise in a vehicle interior by suppressing vibration of an outer panel while reducing the weight and costs includes an outer panel and an inner panel. The inner panel includes a horizontal frame part, vertical frame parts, merging parts, and connecting parts. The connecting part extends only from one end part on an opening part side in a width direction of the horizontal frame part, the connecting part extends only from one end part on an opening part side in the width direction of the vertical frame part, and the connecting part extends only from one end part on an opening part side in the width direction of the vertical frame part. The connecting parts are respectively connected to the outer panel. The merging parts are formed with higher torsional rigidity than the horizontal frame part and the vertical frame parts.

Abstract: A motor-driven compressor includes a compression mechanism, an electric motor, an inverter, a housing, and a cover defining an accommodation chamber with the housing to accommodate the inverter. The cover includes a plate-shaped body wall and insertion holes extending through a periphery of the body wall. The body wall includes a first surface opposed to the inverter in the accommodation chamber, a second surface, a first thickness portion having a first thickness, and a second thickness portion located around at least one of the insertion holes. The second thickness portion has a second thickness that is smaller than the first thickness and is obtained by recessing the body wall from the first surface toward the second surface.

Abstract: A motor-driven compressor includes a compression mechanism, an electric motor, an inverter, a housing, and a cover defining an accommodation chamber with the housing to accommodate the inverter. The cover includes a plate-shaped body wall and insertion holes extending through a periphery of the body wall. The body wall includes a first surface opposed to the inverter in the accommodation chamber, a second surface, a first thickness portion having a first thickness, and a second thickness portion located around at least one of the insertion holes. The second thickness portion has a second thickness that is smaller than the first thickness and is obtained by recessing the body wall from the first surface toward the second surface.