Abstract: An output terminal for a vehicle AC generator is provided. The output terminal comprises: a bolt and a cylinder nut. The bolt has outer threads and is inserted through a through hole of a rectifier unit. The cylinder nut has inner threads, which engage with the outer threads of the bolt so that the cylinder nut surrounds the outer circumference of the bolt and fixes the bolt to the rectifier unit. The cylinder nut has a recess in its outer circumference. An insulating sleeve may be provided on the output terminal. The insulating sleeve has at least an internal protrusion for being received in and engaged with the recess of the cylinder nut.

Abstract: The present invention relates to a rectifier unit of an AC generator for a vehicle. The rectifier unit comprises: a connection unit, a positive cooling fin and a negative cooling fin. The positive cooling fin is coupled to a first portion of the connection unit. The negative cooling fin comprises two separate negative cooling members. Each of the two negative cooling members is coupled to a second portion of the connection unit. The first portion of the connection unit and the second portion of the connection unit are of a different height. The connection unit is disposed above the positive cooling fin, and the positive cooling fin is disposed above the negative cooling fin.

Abstract: An output terminal for a vehicle AC generator is provided. The output terminal comprises: a bolt and a cylinder nut. The bolt has outer threads and is inserted through a through hole of a rectifier unit. The cylinder nut has inner threads, which engage with the outer threads of the bolt so that the cylinder nut surrounds the outer circumference of the bolt and fixes the bolt to the rectifier unit. The cylinder nut has a recess in its outer circumference. An insulating sleeve may be provided on the output terminal. The insulating sleeve has at least an internal protrusion for being received in and engaged with the recess of the cylinder nut.