Abstract: A cooling case for an electronic device includes: a floor portion defining a cooling channel where a coolant flows; a first arrangement section, in which a first electronic component is disposed, defined in one of top and bottom surfaces of the floor portion; a second arrangement section, in which a second electronic component is disposed, defined in the other of the top and bottom surfaces; and a third arrangement section being in communication with the first and second arrangement sections through an opening of the floor portion. A smoothing capacitor unit is disposed in the third arrangement section to face both the top and bottom surfaces of the floor portion and includes first power storage portion for a circuit of the first electronic component and second power storage portion for a circuit of the second electronic component, which are integral with each other.

Abstract: A transformer includes an input-side primary coil, an output-side secondary coil, a core around which the primary and secondary coils are coiled, a casting case housing a transformer body provided by the primary and secondary coils and the core, and a mold resin filling a clearance between the case and the transformer body. The case includes a bottom portion attached with the transformer body, a side wall surrounding the bottom portion, and an opening provided opposite to the bottom portion, the transformer body being housed and the mold resin being filled through the opening. A thickness of a mold layer provided in the clearance between an inner wall surface of the side wall and an outer surface of the transformer body opposed to the inner wall surface is constant for a predetermined length from a point at or near the opening of the case toward the bottom portion.

Abstract: An electric storage device includes a plurality of capacitor cells (electric-power storage cells) and a casing that houses the capacitor cells. The casing includes an inspection window through which a condition display unit provided inside the casing is visually checkable. The inspection window includes a through hole that penetrates the casing, a resin plate that closes the through hole from an inside of the casing, and a seal member that is interposed between the resin plate and an inner surface of the casing around the through hole.

Abstract: A transformer (1) includes: an input-side primary coil (21); an output-side secondary coil (22); a core (20) around which the primary and secondary coils (21, 22) are coiled; a casting case (3) housing a transformer body (2) provided by the primary and secondary coils (21, 22) and the core (20); and a mold resin (4) filling a clearance between the case (3) and the transformer body (2). The case (3) includes: a bottom portion (31) attached with the transformer body (2); a side wall (32) surrounding the bottom portion (31); and an opening (30) provided opposite to the bottom portion (31), the transformer body (2) being housed and the mold resin (4) being filled through the opening (30).

Abstract: An electric storage device includes a plurality of capacitor cells (electric-power storage cells) and a casing that houses the capacitor cells. The casing includes an inspection window through which a condition display unit provided inside the casing is visually checkable. The inspection window includes a through hole that penetrates the casing, a resin plate that closes the through hole from an inside of the casing, and a seal member that is interposed between the resin plate and an inner surface of the casing around the through hole.