Electronic commutator motor such as for a miniature fan in a computer, has a heat conducting bearing tube in close contact with a cooling body

摘要

The motor has an inner stator (44) around which extends an outer rotor (22). The rotor has a shaft (34). A bearing arrangement (36) for this shaft is arranged on the inner stator. The bearing arrangement (36) is arranged in a bearing carrier tube (38). This is formed of plastic which has a heat conductivity value of at least 1 Watt per mK. This tube is in close heat transmitting contact with a cooling body (39) which is also made of a good heat conducting material. Independent claims also cover an arrangement with components to be cooled and a cooling device including such a motor.