Toyota Jidosha Kabushiki Kaisha

Keisuke Yasuda

Kenji Chiba

Takuya Oshima

Yuji Sugino

Roof side rails are in a closed cross-section structure, each formed by a rail outer member and a rail inner member. A reinforcing member is disposed in the closed cross-section structure at a position where each roof side rail is connected to a roof cross member. The reinforcing member includes a base bonded to the rail outer member, a facing plate facing the rail inner member, and a supporting wall standing on the base to support the facing plate.

Upper body structure of vehicle

A roof panel is attached to a roof opening reinforcement that reinforces an area around an opening. The roof opening reinforcement has a rear side portion that extends in the lateral direction along the rear edge of the opening. The upper surface of the rear side portion of the roof opening reinforcement, or a roof panel opposed surface, extends along the lower surface of the roof panel. Extended reinforcements are disposed corresponding to the respective rear corners of the opening. The extended reinforcement extends toward the roof side rails as if forming an extension of the roof panel opposed surface, and is attached to the roof panel near where the roof panel is attached to the roof side rails.

Upper part structure of vehicle body

A vehicle upper structure includes a roof side rail, a first roof R/F, and a gusset. The roof side rail extends in a vehicle front-rear direction. The first roof R/F has a first bulging portion and a first flange portion, and extends farther toward an inside of a vehicle cabin in a vehicle width direction than the roof side rail. The gusset is arranged extending between the roof side rail and an end portion of the first roof R/F in the vehicle width direction, and has a second bulging portion and a second flange portion on an inner end portion on the inside in the vehicle width direction.

Vehicle upper structure

In this brazing method, which brazes an insulating substrate and a top plate that configure an HV inverter cooler, the insulating substrate is disposed on the top plate with a brazing material layer therebetween, and then, by means of laser irradiation, laser welding is performed at an arbitrary plurality of positions at the joining section between the top plate and the insulating substrate, thus provisionally affixing the insulating substrate to the top plate. Thereafter, by means of heating and melting the brazing material layer, the insulating substrate is brazed onto the top plate with the plurality of laser-welded positions as the brazing start points. After brazing, a power semiconductor is joined onto the insulating substrate corresponding to the center portion of the region surrounded by the plurality of brazing start points.

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Nisshin, Japan

Keisuke Yasuda