Automobile AC (Alternating Current) generator, wire embedding system and wire embedding method thereof

Abstract

The invention provides an automobile AC (Alternating Current) generator in the field. The automobile AC generator comprises a stator winding component, a rotor component, a fixed outer shell, a rotary transformer and a junction box component, wherein the stator winding component comprises a stator core and a stator winding; the stator core is composed of separate core chips; a round convex part is arranged on one side of each core chip while a round concave part is arranged on the other side thereof to form a hasp structure; adjacent core chips are combined to form a round ring shaped stator core through the hasp structures. The invention also provides a wire embedding system and a wire embedding method both used for the automobile AC generator. The automobile AC generator, the wire embedding system and the wire embedding method thereof overcome disadvantages in the prior art, reduce material wastage, decrease manufacturing cost, further improve production efficiency, are convenient in wire embedding operation, and improve winding reliability.

Description

technical field [0001] The invention relates to an automobile alternator, and a wire-laying system and a wire-laying method for carrying out a wire-laying operation on a generator stator winding. Background technique [0002] Existing automotive alternators typically use integral stator laminations. Due to the use of full-circle stamping, the raw materials used must be larger than the area of ​​the punching sheet. For example, the punching sheet of φ267*0.35 and the empty ring of the inner ring of φ199*0.35 have an area of ​​about 99500 square millimeters, and 300*0.35 punching raw materials are required. Therefore, the edge material of the outer ring is wasted, and the empty ring of the inner ring φ199*0.35 will also be wasted. On the other hand, this integral stator structure is difficult to achieve mass production due to the limitation of the operation process. Generally speaking, in order to achieve automatic operation, the price of purchasing a small motor automatic w...

AI Technical Summary

Problems solved by technology

Due to the use of full-circle stamping, the raw materials used must be larger than the area of ​​the punching sheet. For example, the punching sheet of φ267*0.35 and the empty ring of the inner ring of φ199*0.35 have an area of ​​about 99500 square millimeters, and 300*0.35 punching raw materials are required. Therefore, the edge material of the outer ring is wasted, and the empty ring of the inner ring φ199*0.35 will also be wasted

On the other hand, this integral stator structure is difficult to achieve mass production due to the limitation of the operation process.

Generally speaking, in order to achieve automatic operation, the price of purchasing a small motor automatic wire insertion system is more than 10 million yuan, which is unaffordable for many companies, so they can only insert wires manually

For the manual insertion operation, one employee inserts a relatively simple stator winding, and the shift output is only 3 sets. It can be seen that the efficiency is extremely low, the investment cost is high, and the stability of manual insertion is poor, and there are often cases of poor inter-turn

[0003] In order to overcome the low efficiency of the integral stator core embedding, someone has invented a segmented stator punch, which can be more convenient for the stator core embedding operation

Images