Wire harness assembly of range extender unit

The utility model provides a range extender unit wire harness assembly comprising a generator wire harness, an engine wire harness and a relay box wire harness which are connected through wires, the wires comprise a first wire, a second wire, a third wire, a fourth wire and a fifth wire, each functional interface of the generator wire harness is integrated in the second wire, and each functional interface of the relay box wire harness is integrated in the third wire. All functional interfaces of the engine wire harness are integrated in the third wire, the fourth wire and the fifth wire, and the second wire, the third wire, the fourth wire and the fifth wire are respectively integrated in the first wire. By means of the mode, the problems that according to an existing range extender wire harness, a generator wire harness and an engine wire harness do not have collaborative design and are prone to mutual interference and abrasion, and reliability is low are solved. 本实用新型提出了一种增程器机组线束总成，包括：通过导线连接的发电机线束、发动机线束和继电器