Wireless charging device, and transportation means comprising same
AssigneeSkc Co., Ltd.
InventorsTae Kyoung Kim, Nah Young Kim, Jong Hak Choi, Seunghwan Lee
Life of this patent
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Abstract
A wireless charging device according to an embodiment, can effectively discharge heat by including an insulating heat dissipation part in the inner part of a magnetic part or between the magnetic part and a coil part. Therefore, the wireless charging device can be effectively used for a transportation means such as an electric vehicle that requires high-capacity power transmission between a transmitter and a receiver.
Claims6
A wireless charging device, which comprises a coil unit comprising a conductive wire;
- a shield unit disposed on the coil unit;
- a magnetic unit disposed between the coil unit and the shield unit;
- and an insulating heat dissipation unit disposed inside the magnetic unit, and
- wherein the magnetic unit comprises a binder resin and a magnetic powder dispersed in the binder resin,
- wherein an elongation of the magnetic unit measured by the ASTM D412 Type C method is 0.5% to 10%,
- wherein the insulating heat dissipation unit comprises a binder resin and insulating inorganic particles dispersed in the binder resin, and
- wherein the insulating inorganic particles comprise at least one selected from a group consisting of silica, alumina, boron nitride, aluminum nitride, and magnesium oxide.
A transportation means, which comprises a wireless charging device, wherein the wireless charging device comprises a housing;
- a coil unit disposed in the housing and comprising a conductive wire;
- a shield unit disposed on the coil unit;
- a magnetic unit disposed between the coil unit and the shield unit;
- and an insulating heat dissipation unit disposed inside the magnetic unit or between the magnetic unit and the coil unit, and
- wherein the magnetic unit comprises a binder resin and a magnetic powder dispersed in the binder resin,
- wherein an elongation of the magnetic unit measured by the ASTM D412 Type C method is 0.5% to 10%,
- wherein the insulating heat dissipation unit comprises a binder resin and insulating inorganic particles dispersed in the binder resin, and
- wherein the insulating inorganic particles comprise at least one selected from a group consisting of silica, alumina, boron nitride, aluminum nitride, and magnesium oxide.
Dependencies are inferred from the claim text.