Patent ID: 9407176
Filing Date: 2016-08-02
CPC Classification: F04D,H02P

Claim Text:
1. An integrated system of circuits for serial fan structure, comprising: a first fan including a first frame, a first fan wheel, a first stator, a first driving unit and a first control unit; the first frame internally defining a first receiving space and having a first shaft base centered in the first receiving space; the first stator being externally fitted on around the first shaft base, and including a first silicon steel plate assembly and a first coil assembly wound around the first silicon steel plate assembly; and the first fan wheel being rotatably mounted on the first shaft base; the first control unit being a micro control unit (MCU); and no circuit board being included in the first fan; and a second fan being connected to the first fan back to back, and including a second frame, a second fan wheel, a second stator, a second driving unit, a circuit unit and a second control unit; the second frame internally defining a second receiving space and having a second shaft base centered in the second receiving space; the second fan wheel being mounted on the second shaft base; the second stator being externally fitted on around the second shaft base, and including a second silicone steel plate assembly, a second coil assembly wound around the second silicon steel plate assembly, and a circuit board connected to the first and the second coil assembly; the circuit board being located on one side of the second shaft base facing toward the second fan wheel; the second control unit being a micro control unit (MCU); and the first and the second driving unit, the first and the second control unit, and the circuit unit being sequentially electrically connected and mounted on to one side of the circuit board of the second fan, so that the circuit board and the circuit unit on the circuit board of the second fan are a common circuit board and a common circuit unit of the first and the second fan.