Sunonwealth Electric Machine Industry Co., Ltd.

Yeh-Feng Chen

Alex Horng

Ko-Chien Wang

Wen-Te Chang Chien

Chien-Chang Huang

A radial-winding stator of a motor including a core and eight poles is disclosed. Each pole has a magnetic pole and a pole piece. The magnetic pole is connected to the core and extends outwards from the core in a radial direction. The pole piece is formed at one end of the magnetic pole distant to the core. The pole piece includes a magnetic end face having an arc length along a circumferential direction of the core, as well as an axial height along an axial direction perpendicular to the radial direction. A ratio of the arc length to the axial height is between 2.05 and 10. In another embodiment, the radial-winding stator includes ten or twelve poles.

Radial-winding stator of a motor

A fan includes a housing having a compartment formed inside, and at least one lateral air inlet and at least one lateral air outlet both penetrating through the inner and outer surfaces of the housing and communicating with the compartment. A motor is mounted inside the compartment of the housing and has a stator and an impeller, with the impeller rotatably coupled to the stator and further containing a hub and a plurality of blades mounted to a top of the hub. Each blade has a first end and a second end in the radial direction of the impeller opposite to each other, with the first end of each blade facing outward, and with the second ends of the plural blades defining an airflow-area.

A cooling fan includes a housing and a motor. The housing includes a support portion, a cover portion and a lateral wall portion. The lateral wall portion is disposed between the cover portion and the support portion, and the lateral wall portion, support portion and the cover portion define a compartment, with the lateral wall portion having at least one lateral air inlet and at least one lateral air outlet penetrating through the lateral wall portion and communicating with the compartment. The motor is mounted inside the compartment of the housing and contains a stator and a impeller, with the impeller rotatably mounting to the stator. The motor further contains a hub with a top and a plurality of blades, with the top facing the cover portion, with the top and the cover portion delimiting a lateral flow path in the compartment, and with each blade being contained in the lateral flow path.

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Kaohsiung, Taiwan

Yeh-Feng Chen