Patent ID: 6794975
Filing Date: 2004-09-21
Classification: H01F

Abstract:
A non-contact transformer including a primary cylindrical transformer component provided within a primary housing and a secondary cylindrical transformer component provided within a secondary housing located opposite the primary housing to induce non-contact electrical current transmission between the primary transformer component and the secondary transformer component through electromagnetic inductance occurring between a primary coil in the primary transformer component and a secondary coil in the secondary transformer component, said non-contact transformer comprising:a cylindrical end face of the primary transformer component provided on a bottom plate of the primary housing located opposite the secondary housing; a printed circuit board with terminals attached thereto provided on another cylindrical end face of the primary transformer component; and a passage that receives resin as the primary transformer component is immersed in resin filling the primary housing, said passage provided between said printed circuit board and the primary transformer component and connecting a core space within the primary transformer component and a space external to the primary transformer component.