Abstract: A rotor assembly includes a housing and a hub. The housing has an open end and an opposed closed end, and is formed with a raised portion in the central location of the closed end. The hub is mounted on the closed end of the housing and covers the housing except for the raised portion to construct a thin motor.

Abstract: A heat-dissipating device includes a housing having an air inlet and an air outlet, and a rotor disposed in the housing and having a first set of blades, wherein the housing has a sidewall extending inward from the air inlet to define an air-gathering chamber in the housing, and a plurality of air-guiding members disposed along the sidewall for increasing and stabilizing a blast pressure of airflow passing through the heat-dissipating device.

Abstract: A heat-dissipating device includes a housing having at least one opening, and a rotor disposed in the housing and having a base, a hub, a first set of blades disposed around the hub, and a second set of blades disposed on the base for increasing air volume and stabilizing a blast pressure of airflow passing through the heat-dissipating device.

Abstract: A heat-dissipating device includes a housing having at least one air inlet and at least one air outlet, and a rotor disposed in the housing, wherein the housing has a first extending part extending along an axial direction of the heat-dissipating device to form an axially compressed air passage inside the housing for enabling the airflow to smoothly flow in the air passage inside the frame thereof so as to enhance its performance.

Abstract: A heat-dissipating device includes a housing having a first frame and a second frame, and a rotor disposed in the housing, wherein the first frame includes a bearing tube for accommodating a first bearing therein and the second frame includes a support for accommodating a second bearing therein so as to jointly support a shaft of the rotor. The heat-dissipating device utilizes a two-side way for securing its rotating shaft so as to enhance the stability and eliminate the vibration while operating at high rotation speed.

Abstract: A heat-dissipating device and a housing thereof. The housing includes a passage for guiding an air stream flowing from an opening to another opening, wherein an inner wall of the passage at at least one of the opening sides extends radially outwards with a rotational axis of the heat-dissipating device or the passage so as to enlarge intake or discharge area for the air streams. Accordingly, the intake airflow rate may be greatly increased and the heat-dissipating efficiency of the heat-dissipating device may be greatly enhanced without changing assembling conditions with other elements.

Abstract: A rotor assembly includes a housing and a hub. The housing has an open end and an opposed closed end, and is formed with a raised portion in the central location of the closed end. The hub is mounted on the closed end of the housing and covers the housing except for the raised portion to construct a thin motor.