Sanyo Denki Co., Ltd.

Intel Corporation

Masashi Miyazawa

Tomoaki Ikeda

Toshiki Ogawara

Kouji Ueno

Masayuki Iijima

Paul J Gwin

Akira Nakayama

Peter A Davison

Haruhisa Maruyama

Jiro Watanabe

Brian J Long

Yoshihisa Yamazaki

Rolf A Konstad

Yoshinori Miyabara

Izumi Onozawa

Provided is an axial fan including: an impeller cup including a blade extending in a radial direction; a motor configured to rotate the impeller cup; and a housing accommodating the impeller cup and the motor. The housing includes: a casing portion covering an outer periphery of the impeller cup; a base portion supporting the motor; and a spoke portion connecting the base portion and the casing portion. A vibration restraining portion is provided in a portion, which is connected to the spoke portion, of an outer peripheral portion of the base portion, and the vibration restraining portion has lower stiffness than the other portion of the outer peripheral portion.

Axial fan

An impeller includes: a cylinder that includes a circular plate-shaped circular plate and a peripheral wall that extends from an outer peripheral edge of the circular plate along a rotation shaft of the impeller; and a blade mounted to an outer peripheral surface of the peripheral wall, the blade being configured to send air. The circular plate has a circular plate opening at a center, the circular plate opening penetrating the circular plate along the rotation shaft, and a sidewall opening is formed at the peripheral wall, the sidewall opening penetrating the peripheral wall along a direction different from a direction parallel to the rotation shaft.

Fan device with impeller having circular plate opening, sidewall opening and groove connecting the circular plate opening with the sidewall opening for efficiently cooling motor

A brushless motor stator is provided that may be applied to a plurality of types of motors having different rotational speeds, merely by providing one type of a circuit substrate. A pair of fitting convex portions that project radially outside of a virtual circle centering on a center line C are formed on one insulator divided body of a slot insulator. Three pairs of diagonally located fitting concave portions are formed in an inner circumferential wall portion surrounding a through-hole of a circuit substrate. The pair of fitting convex portions of the one insulator divided body are fitted in one of the three pairs of fitting concave portions. With this, a positional relationship between three hall elements and stator magnetic poles is selected, corresponding to the speed range of a motor to be used.

Brushless motor stator with fitting position determining structure of circuit substrate

The present invention provides an axial-flow fan capable of entirely cooling an object to be cooled even when the distance between the object to be cooled and an air discharge opening of the axial-flow fan is short. A plurality of stationary bladesA toE are disposed at intervals in a rotating direction of a rotor and located inside an air discharge openingof an air channel. Each of the plurality of stationary bladesA toE has an external end portionconnected to an inner wall portion of a fan housing, an internal end portionconnected to a peripheral wall portionB of a motor case, a discharge-side edge portionformed between the external end portionand the internal end portionand located at a side of the air discharge opening, and a suction-side edge portionformed between the external end portionand the internal end portionand located at a side of the air suction opening. An outer surface of the bottom wall portionA of the motor caseis located closer to a side of the air suction openingthan the discharge-side edgesof the plurality of stationary bladesA toD are located.

Axial-flow fan

A small water-cooling type electronic component cooling apparatus is provided. The electronic component cooling apparatus comprises a so-called water-cooling heat sink, a radiatorcooled by an electric fan, first and second coolant pathsfor circulating a coolant between the heat sinkand the radiator, and an electric pumpto supply a moving energy to the coolant. The electric pumpis arranged at a position facing the heat-radiating portion of the radiator

Electronic component cooling apparatus

The present provides a heat-emitting element cooling apparatus which has a higher heat-emitting efficiency than that of conventional heat-emitting element cooling apparatus. A heat-emitting element cooling apparatusincludes a heat sinkand a fan unit. The heat sinkhas a baseonto which a heat-emitting element is to be mounted, radiation fins of a first type, and radiation fins of a second type. The radiation finsextend from an upper surfaceA in an upward direction. The radiation finsextend from either of two side surfacesB andC in either of rightward and leftward directions. The radiation finsandcontinuously extend in forward and rearward directions respectively.

Heat-emitting element cooling apparatus and heat sink

An electronic component, cooling apparatus comprises a so-called water-cooled heat sink, a radiator to be cooled by a motor-driven fan, first and second coolant paths for circulating a coolant between the heat sink and the radiator, and a motor-driven pump for giving a moving energy to the coolant. A plurality of engaging pieces of the motor-driven fan and a plurality of engaged portion of the radiator are engaged to connect the motor-driven fan and the radiator.

Growing community of inventors

Nagano, Japan

Masashi Miyazawa