Patent ID: 9533374
Date: 2017-01-03
CPC Classifications: B23K,H02K

Claim:
1. A manufacturing method of a stator module of a fan, comprising steps of: providing a stator module, the stator module including a silicon steel sheet assembly having a first end, a second end, multiple splits, multiple outer faces and an insulation support assembly, the outer faces being formed between the adjacent splits; providing a first cover body of a protection structure to cover the first end of the silicon steel sheet assembly and contact the insulation support assembly, the first cover body including multiple posts correspondingly inserted in the multiple splits, two sides of the posts respectively contacting two sides of the outer faces; providing a second cover body of the protection structure to cover the second end of the silicon steel sheet assembly, the posts of the first cover body extending to the second cover body the outer faces contacting the first cover body, the second cover body and the posts; and using laser welding to weld the junction between the first cover body and the outer faces, the junction between the first cover body and the insulation support assembly, the junction between two sides of the posts and two sides of the outer faces, and the junction between the second cover body and the outer faces and the junction between the posts and the second cover body thereby creating a continuous outer structure.