Contactless power transmission apparatus and a method of...

H - Electricity – 01 – F

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H01F 38/14 (2006.01) H02J 17/00 (2006.01)

Patent

CA 2692247

According to a first aspect, a secondary side of contactless power transmission apparatus includes: a holding member which is physically separated from a primary side; a magnetic layer; a shield layer for shielding electromagnetic noise; and a heat insulation layer. The secondary coil is a planar coil and supported by the holding member, and at least the magnetic layer is laminated on one side of the planar coil and unified with the planar coil. According to a second aspect, the secondary side of the apparatus includes a plurality of magnetic layers. Each permeability of the magnetic layers is different from each other, and each of the magnetic layers forms a magnetic path with the primary side.

Selon une première caractéristique, le secondaire d'un dispositif de transmission d'énergie sans contact comprend un élément de support physiquement isolé d'un primaire, une couche magnétique, une couche de blindage permettant d'antiparasiter le bruit magnétique, et une couche calorifuge. Une bobine secondaire est une bobine planaire portée par l'élément de support, et au moins la couche magnétique est empilée sur un côté de la bobine planaire et intégrée à la bobine planaire. Selon une seconde caractéristique, le secondaire du dispositif comprend une pluralité de couches magnétiques. Les couches magnétiques ont des perméabilités respectives différentes les unes des autres et chacune d'entre elles forme un chemin magnétique avec le primaire.

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