Abstract: There is provided an element unit including high side arm and low side arm transistors, a conductor set formed by disposing a positive bus bar and a negative bus bar to face each other while spaced apart in a Z axis direction, and a first bus bar. The first bus bar extends in the Z axis direction between a first insulating substrate and a second insulating substrate and is electrically connected to copper plates of the first insulating substrate and the second insulating substrate.

Abstract: A cooling apparatus is a cooling apparatus in which a refrigerant flows in a refrigerant flow passage and thereby cools a cooled body that is mounted on a mount part, the cooling apparatus including a heat release part that is arranged in the refrigerant flow passage, wherein the heat release part includes a plurality of first surfaces that are formed so as to approach the mount part side as proceeding in a first direction along a flow direction of the refrigerant flow passage and a plurality of second surfaces that are formed so as to be separated from the mount part as proceeding in the first direction, and the plurality of first surfaces and the plurality of second surfaces are alternately arranged in the first direction.

Abstract: A power conversion apparatus mounted in a vehicle includes a semiconductor stack in which a plurality of semiconductor modules and a plurality of coolants including coolant passages are disposed by being alternately stacked, and a retaining unit which presses the semiconductor stack in a stacking direction to retain the semiconductor stack. The semiconductor modules and the coolants are attached to each other by a plate-shaped insulating resin adhesive member, and a roughened area on which a roughening treatment has been performed is formed in at least a part of the outer surface of the coolants to which the resin adhesive member is attached.

Abstract: An electric power conversion device includes an element-side first electrode conductor and an element-side second electrode conductor extending from a semiconductor element section toward one side in a first direction, and a capacitor-side first electrode conductor and a capacitor-side second electrode conductor extending from the capacitors toward the other side in the first direction, wherein a connecting surface of the element-side first electrode conductor and a connecting surface of the capacitor-side first electrode conductor overlap with each other and are electrically connected to each other, and a connecting surface of the element-side second electrode conductor and a connecting surface of the capacitor-side second electrode conductor overlap with each other and are electrically connected to each other.

Abstract: An electric power conversion device includes an element-side first electrode conductor and an element-side second electrode conductor extending from a semiconductor element section toward one side in a first direction, and a capacitor-side first electrode conductor and a capacitor-side second electrode conductor extending from the capacitors toward the other side in the first direction, wherein a connecting surface of the element-side first electrode conductor and a connecting surface of the capacitor-side first electrode conductor overlap with each other and are electrically connected to each other, and a connecting surface of the element-side second electrode conductor and a connecting surface of the capacitor-side second electrode conductor overlap with each other and are electrically connected to each other.

Abstract: There is provided an element unit including high side arm and low side arm transistors, a conductor set formed by disposing a positive bus bar and a negative bus bar to face each other while spaced apart in a Z axis direction, and a first bus bar. The first bus bar extends in the Z axis direction between a first insulating substrate and a second insulating substrate and is electrically connected to copper plates of the first insulating substrate and the second insulating substrate.

Abstract: A power converter (1) includes: planar semiconductor modules (10) each having a resin sealing part (16) in which a semiconductor element (11), conductive members (12, 13, and 14), and a signal terminal (15) are sealed with a resin; a cooler (20) that holds the plurality of semiconductor modules (10) in a laminated manner; and a cover (30) that covers the semiconductor modules and the cooler, wherein at least a part of the resin sealing part (16) and the cooler (20) are supported by support media (41 and 42) that extend from the cover (30) so that facing parts of the resin sealing part and the cooler with respect to the cover (30) is positioned in proximity to the cover, and the conductive members and the signal terminal protrude from the resin sealing part in a direction away from the cover.

Abstract: A power conversion device includes a first power conversion circuit portion and a second power conversion circuit portion delivering power to and from first and second motors of which shaft centers are disposed along a first direction, three first connection terminals connecting the first power conversion circuit portion and the first motor, and three second connection terminals connecting the second power conversion circuit portion and the second motor. The first power conversion circuit portion and the second power conversion circuit portion are configured such that, when seen in radial directions of the first motor and the second motor, at least a portion thereof overlaps at least any of the first motor and the second motor. Three first connection terminals are disposed along the first direction on one side in a second direction. Three second connection terminals are disposed along the first direction on the other side in the second direction.

Abstract: A refrigerant flow channel includes a first flow channel extending in a first direction and a plurality of first branching flow channels extending in a second direction by branching from the first flow channel. Three element arrays corresponding to a first motor for driving and three element arrays corresponding to a second motor for power generation are respectively disposed side by side in the first direction on a mounting surface. The element array of the first motor in each phase and the element array of the second motor in each phase face each other in the second direction, and are disposed at positions overlapping the first branching flow channel in a plan view. The element array of the first motor is located on an upstream side of the first branching flow channel with respect to the element array of the second motor.

Abstract: A power conversion apparatus mounted in a vehicle includes a semiconductor stack in which a plurality of semiconductor modules and a plurality of coolants including coolant passages are disposed by being alternately stacked, and a retaining unit which presses the semiconductor stack in a stacking direction to retain the semiconductor stack. The semiconductor modules and the coolants are attached to each other by a plate-shaped insulating resin adhesive member, and a roughened area on which a roughening treatment has been performed is formed in at least a part of the outer surface of the coolants to which the resin adhesive member is attached.

Abstract: A power converter includes: a refrigerant flow channel member in which a refrigerant cooling an electronic device flows; a flat refrigerant pipe portion stacked with a power module, provided for a refrigerant cooling the power module to flow therein, and including a contact surface portion contacting the power module to exchange heat; an inlet pipe portion that is disposed at one end of the refrigerant pipe portion and through which the refrigerant flows to the refrigerant pipe portion; an outlet pipe portion that is disposed at the other end of the refrigerant pipe portion and through which the refrigerant flows from the refrigerant pipe portion; an inlet connection portion connecting the inlet pipe portion to the refrigerant flow channel member and formed of a tubular elastic member; and an outlet connection portion connecting the outlet pipe portion to the refrigerant flow channel member and formed of a tubular elastic member.

Abstract: A power storage unit of an electric vehicle includes a first computer that controls a first traction motor, a second computer that controls a second traction motor, and a support member. The power storage unit is disposed behind a seat of the electric vehicle. In a state that the first computer is fixed to a first surface of the support member and the second computer is fixed to a second surface of the support member, the support member is disposed between the seat and a power storage device in a front-rear direction of the vehicle.

Abstract: A power storage unit of an electric vehicle includes a first computer that controls a first traction motor, a second computer that controls a second traction motor, and a support member. The power storage unit is disposed behind a seat of the electric vehicle. In a state that the first computer is fixed to a first surface of the support member and the second computer is fixed to a second surface of the support member, the support member is disposed between the seat and a power storage device in a front-rear direction of the vehicle.

Abstract: A power converter (1) includes: planar semiconductor modules (10) each having a resin sealing part (16) in which a semiconductor element (11), conductive members (12, 13, and 14), and a signal terminal (15) are sealed with a resin; a cooler (20) that holds the plurality of semiconductor modules (10) in a laminated manner; and a cover (30) that covers the semiconductor modules and the cooler, wherein at least a part of the resin sealing part (16) and the cooler (20) are supported by support media (41 and 42) that extend from the cover (30) so that facing parts of the resin sealing part and the cooler with respect to the cover (30) is positioned in proximity to the cover, and the conductive members and the signal terminal protrude from the resin sealing part in a direction away from the cover.

Abstract: A power converter includes: a refrigerant flow channel member in which a refrigerant cooling an electronic device flows; a flat refrigerant pipe portion stacked with a power module, provided for a refrigerant cooling the power module to flow therein, and including a contact surface portion contacting the power module to exchange heat; an inlet pipe portion that is disposed at one end of the refrigerant pipe portion and through which the refrigerant flows to the refrigerant pipe portion; an outlet pipe portion that is disposed at the other end of the refrigerant pipe portion and through which the refrigerant flows from the refrigerant pipe portion; an inlet connection portion connecting the inlet pipe portion to the refrigerant flow channel member and formed of a tubular elastic member; and an outlet connection portion connecting the outlet pipe portion to the refrigerant flow channel member and formed of a tubular elastic member.