Heat-dissipating device e.g. centrifugal fan, has rotor disposed in housing, and frame with bearing tube for receiving and supporting driving device, where bearing is mounted inside tube for supporting rotating shaft of rotor

摘要

The device has housing with two frames, and a rotor disposed in the housing. A frame (21) has a bearing tube for receiving and supporting a driving device. A bearing (231) is mounted inside the bearing tube (211) for supporting a rotating shaft of the rotor. Another frame (22) has a support for accommodating a bearing (232) to jointly support the shaft of the rotor, and air-guiding units are fixed on a sidewall.