Mitsubishi Electric Corporation

Yosuke Kikuchi

Takashi Kobayashi

Hiroshi Yoshikawa

Shingo Hamada

Hiroaki Makino

Hajime Ikeda

Hidetomo Nakagawa

Seiji Hirakawa

Koji Sachimoto

Seiji Haga

Masayoshi Tamura

In an axial flow fan according to the present invention, a plurality of blades rotate about a rotation axis of the blades to convey a fluid. In the axial flow fan, the plurality of blades each have a leading edge at a leading side in a rotational direction, a trailing edge at a trailing side in the rotational direction, and an outer peripheral edge connecting the leading edge and the trailing edge. The leading edge of one of the plurality of blades and the trailing edge of another blade adjacent to the leading edge of the blade in the rotational direction are connected by a plate-shaped connection portion. The plurality of blades each have at least one plate-shaped reinforcement rib extending from a periphery of the rotation axis toward the outer peripheral edge of the blade.

Axial flow fan and air-conditioning apparatus having axial flow fan

Propeller fan

The cooling device comprises a heat exchange unit provided in a cooling water flow path. The heat exchange unit has a plate part in the form of a plate and multiple fins erected on the plate face of the plate part, and provided in the manner that the plate face of the plate part extends along the cooling water flow path and the cooling water runs through the space between the fins. The multiple fins are each in the form of a rhombic column and provided on the plate part in a lattice pattern in the manner that the longer diagonal of the rhombic column extends along the cooling water flow path.

Cooler and cooling device

Growing community of inventors

Tokyo, Japan

Yosuke Kikuchi