Sanyo Denki Co., Ltd.

Haruhisa Maruyama

Toshiki Ogawara

Michinori Watanabe

Masayuki Iijima

Tomoaki Ikeda

Yuichi Kodaira

Yoshinori Miyabara

Noriyasu Sasa

Yoshihisa Yamazaki

Takahisa Toda

Masashi Miyazawa

Naruhiko Kudo

Haruka Sakai

Yusuke Okuda

Kouji Ueno

Kei Satou

Naoko Ishiwatari

A fan motor apparatus is provided, which includes a blade; a rotary shaft; a hub; a rotor integrally molded with the blade, the rotor being fixed to the rotary shaft; and a protection cover including: a lid portion covering a top surface of the rotor; and an intake port configured to take air into the lid portion.

Fan motor apparatus and protection cover of fan motor apparatus

A brushless motor includes a stator as an armature where a plurality of coils is housed and a rotor as a magnetic exciter having a permanent magnet, wherein an end portion of the coil housed in a slot of a stator stack is inserted into a wire binding board having a wire binding pattern of the coil, the end portion of the coil is soldered to a land of the wire binding board, and the wire binding board and a circuit board are electrically conducted to each other through an connecting terminal.

Brushless motor

An electric fan is provided, including a labyrinth structure with increased performance of preventing entry of a liquid into a receiving space to receive a stator and a rotor. A clearance is defined between an opposed wall portion of a base and an opposed wall portion of an impeller body, which are opposed to each other in an axial direction of a rotary shaft, to form a labyrinth structure. The opposed wall portion of the base and the opposed wall portions of the impeller body are shaped to form a volume expanding portion within the clearance. The volume expanding portion is constituted from a groove portion for expanding the clearance, having a volume larger than other portions within the clearance.

Electric fan

A cable is sandwiched between a first inner wall surface of a peripheral-wall-side pressing wall portion and a first inner wall surface of a cap-side pressing wall portion, between a second inner wall surface of the peripheral-wall-side pressing wall portion and a second wall surface of the cap-side pressing wall portion, and between a third inner wall surface of the peripheral-wall-side pressing wall portion and a third inner wall surface of the cap-side pressing wall portion to crank the cable to form a cranked portion of the cable. The peripheral-all-side pressing wall portion and the cap-side pressing wall portion sandwich the cranked portion therebetween. Thus, defective soldering may be prevented between a plurality of lead wires and a core-wire soldered portion to which core wires of the lead wires are soldered and connected.

Electrical apparatus

An axial-flow fan unit that produces less noise is provided. Bladesare exposed from a venturi. The shape of each of the bladesis so defined that a space formed between at least an inner surfaceof each of web leg sectionsA toC and an edgeof each of the bladeslocated in the radially outward direction of the bladesexpands toward the ends of the web leg sectionsA toC (or web bodiesA toC). With this arrangement, noise produced when the bladesrotate along the web leg sectionsA toC is reduced.

Axial-flow fan unit and heat-emitting element cooling

There is provided a fan unit in which when the fan unit is conveyed, existence of a plurality of lead wires will not become an obstacle to the conveyance. Four lead wire engaging sections, andare provided along the contour of an outer wall sectionof a fan casingas the fan casingis viewed from a predetermined position in a forward direction. Then, the lead wire engaging sectionsandare configured to engage a part of lead wiresso as to prevent the lead wiresfrom coming out of the fan casingone or more during the conveyance.

Heat-emitting element cooling apparatus

Electronic component cooling apparatus

Axial-flow fan unit and heat-emitting element cooling apparatus

Heat sink

A heat-emitting element cooling apparatus that can improve a cooling effect on a heat-emitting element without increasing its size is provided. A heat sink is so constructed that all or part of radiation fins are located outside the contour of a base as seen from a side on which an axial flow fan unit is mounted. Then, the axial flow fan unit is so constructed as to discharge air along the portions of the radiation fin located outside the contour of the base.

Growing community of inventors

Nagano, Japan

Haruhisa Maruyama