Patent ID: 8593245
Filing Date: 2013-11-26
Classification: H01F

Abstract:
1. A coil assembly with a shielding function, said coil assembly comprising: at least one insulated wire wound into a winding coil part, wherein said winding coil part includes a ring-shaped body, a first wire-outlet segment, a second wire-outlet segment and a central through-hole, wherein said ring-shaped body has an upper surface, a lower surface, an inner rim, and an outer rim, and said inner rim is opposite to said outer rim and close to said central through-hole; and an electromagnetic interference shielding layer directly formed on said winding coil part for shielding said insulated wire, wherein said electromagnetic interference shielding layer has lateral projection profile on said winding coil part, and said electromagnetic interference shielding layer has a radial gap such that said electromagnetic interference shielding layer is a non-conducting loop; wherein said electromagnetic interference shielding layer is a conductor layer; wherein said electromagnetic interference shielding layer covers at least parts of said inner rim of said ring-shaped body of said winding coil part; wherein said coil assembly further includes an insulating layer, which is formed on external surfaces of said electromagnetic interference shielding layer, a ground wire, said first wire-outlet segment and said second wire-outlet segment, wherein said ground wire is between said insulating layer and said electromagnetic interference shielding layer.