Wireless power transmission device for vehicle

1. A wireless power transmission device comprising:

at least one wireless power transmission antenna for power transmission;

a wireless communication antenna formed in an antenna pattern on at least one surface of a circuit board; and

a magnetic field shielding sheet having a plate shape and disposed on one surface of the wireless power transmission antenna,

wherein the circuit board on which the wireless communication antenna is formed is disposed to be located above the wireless power transmission antenna,

wherein the wireless power transmission antenna is formed of a planar coil having a hollow portion, and the wireless communication antenna includes a first patterned portion disposed on a region corresponding to the wireless power transmission antenna and a second patterned portion disposed on a region which does not correspond to the wireless power transmission antenna, and

wherein the second patterned portion is formed on an edge side along an edge of the circuit board, and the first patterned portion is formed on an inner side of the circuit board to be located on an inner side of the second patterned portion.

2. The wireless power transmission device of claim 1 , wherein the first patterned portion is formed such that a portion thereof which is located directly above a coil body of the planar coil has a relatively longer length or wider area than a portion thereof which is located directly above the hollow portion.

3. The wireless power transmission device of claim 1 , wherein the first patterned portion is formed such that a portion thereof which is located directly above a coil body of the planar coil has a relatively shorter length or narrower area than a portion thereof which is located directly above the hollow portion.

4. The wireless power transmission device of claim 1 , wherein the wireless power transmission device includes a heat-dissipating member having a plate shape.

5. A wireless power transmission device comprising:

a magnetic field shielding sheet having a plate shape and a predetermined area;

at least one wireless power transmission antenna disposed on a first surface of the magnetic field shielding sheet;

a wireless communication antenna formed in an antenna pattern on at least one surface of a circuit board; and

a supporting plate which is made of a plastic material having a heat-dissipating property and includes one or more seating grooves respectively formed on a first surface and a second surface which are opposite to each other,

wherein the circuit board is disposed on a second surface of the magnetic field shielding sheet which is a surface opposite to the first surface,

wherein the wireless power transmission antenna is formed of a plurality of planar coils, each of which is disposed to be inserted into each of the seating grooves.

6. The wireless power transmission device of claim 5 , wherein the circuit board includes a protruding region which protrudes outward from an edge of the magnetic field shielding sheet, and the wireless communication antenna is patterned in the protruding region.

7. The wireless power transmission device of claim 5 , further comprising a heat-dissipating member having a plate shape and disposed on one surface of the circuit board, wherein the heat-dissipating member is formed of a thin metal sheet.

8. The wireless power transmission device of claim 1 , further comprising a supporting plate which is made of a plastic material having a heat-dissipating property and includes one or more seating grooves respectively formed on a first surface and a second surface which are opposite to each other, wherein the wireless power transmission antenna is formed of a plurality of planar coils, each of which is disposed to be inserted into each of the seating grooves.

9. The wireless power transmission device of claim 8 , wherein one of the plurality of planar coils is disposed in a first seating groove formed on the first surface, and the remaining planar coils are disposed in a second seating groove formed on the second surface.

10. A wireless power transmission device of claim 1 , further comprising:

a housing including at least one circuit board built therein for an overall operation and configured to release heat generated by a heat source; and

a heat-dissipating coating layer applied to an outer surface of the housing to improve a heat-dissipating property.

11. The wireless power transmission device for a vehicle of claim 10 , wherein the heat-dissipating coating layer includes a coating layer forming component including a main resin, a carbon-based filler contained in an amount of 8 to 72 parts by weight with respect to 100 parts by weight of the main resin, and a physical property enhancing component configured to improve a heat-dissipating property and an adhesive property.

12. The wireless power transmission device for a vehicle of claim 11 , wherein the main resin is formed of a glycidyl ether type epoxy resin including a bisphenol A type epoxy resin.

13. The wireless power transmission device for a vehicle of claim 10 , wherein the housing is formed of a heat-dissipating member forming composition including a graphite composite in which nano metal particles crystallized on a surface of graphite are bonded and a polymer resin in which the graphite composite forms a dispersed phase.

14. A wireless power transmission device of claim 5 , further comprising:

a housing including at least one circuit board built therein for an overall operation and configured to release heat generated by a heat source; and

a heat-dissipating coating layer applied to an outer surface of the housing to improve a heat-dissipating property.

15. The wireless power transmission device for a vehicle of claim 14 , wherein the heat-dissipating coating layer includes a coating layer forming component including a main resin, a carbon-based filler contained in an amount of 8 to 72 parts by weight with respect to 100 parts by weight of the main resin, and a physical property enhancing component configured to improve a heat-dissipating property and an adhesive property.

16. The wireless power transmission device for a vehicle of claim 15 , wherein the housing is formed of a heat-dissipating member forming composition including a graphite composite in which nano metal particles crystallized on a surface of graphite are bonded and a polymer resin in which the graphite composite forms a dispersed phase.

17. The wireless power transmission device for a vehicle of claim 15 , wherein the main resin is formed of a glycidyl ether type epoxy resin including a bisphenol A type epoxy resin.

18. A wireless power transmission device comprising:

at least one wireless power transmission antenna for power transmission;

a wireless communication antenna formed in an antenna pattern on at least one surface of a circuit board;

a magnetic field shielding sheet having a plate shape and disposed on one surface of the wireless power transmission antenna; and

a supporting plate which is made of a plastic material having a heat-dissipating property and includes one or more seating grooves respectively formed on a first surface and a second surface which are opposite to each other,

wherein the circuit board on which the wireless communication antenna is formed is disposed to be located above the wireless power transmission antenna,

wherein the wireless power transmission antenna is formed of a plurality of planar coils, each of which is disposed to be inserted into each of the seating grooves, and

wherein one of the plurality of planar coils is disposed in a first seating groove formed on the first surface, and the remaining planar coils are disposed in a second seating groove formed on the second surface.