Wireless power transmitter
Disclosed is a wireless power transmitter. The wireless power transmitter includes a coil in a first case; a first passage groove having a shape corresponding to a shape of the first case; and a second case coupled to the first case.
1. A wireless power transmitter comprising:
a first case;
a coil on the first case, wherein the coil wirelessly transmits power to a wireless power receiver;
a first passage groove having a shape corresponding to a shape of the coil;
a second case coupled to the first case;
an inlet device connected to one side of the first passage groove to inject air into the first passage groove;
a power supply device connected to the coil to supply power to the coil;
a heat radiation member on the power supply device; and
a second passage groove connected to an opposite side of the first passage groove and disposed on the heat radiation member.
2. The wireless power transmitter of claim 1 , further comprising a coil receiving unit on the first case to receive the coil,
wherein the first passage groove is coupled to the coil receiving unit.
3. The wireless power transmitter of claim 2 , wherein the coil is surrounded by the first passage groove and the coil receiving unit.
4. The wireless power transmitter of claim 2 , further comprising:
a magnet inside the coil; and
a magnet receiving unit on the first case to receive the magnet.
5. The wireless power transmitter of claim 4 , further comprising a shielding unit below the coil receiving unit and the magnet receiving unit.
6. The wireless power transmitter of claim 1 , wherein the first passage groove surrounds an outer periphery of the coil.
7. The wireless power transmitter of claim 1 , wherein the first passage groove is provided on the second case.
8. The wireless power transmitter of claim 1 , wherein the first passage groove has a close-loop structure.
9. The wireless power transmitter of claim 1 , wherein the heat radiation member includes a groove having a shape corresponding to a shape of the second passage groove.
10. The wireless power transmitter of claim 9 , wherein the second passage groove is disposed in the groove of the heat radiation member.
11. The wireless power transmitter of claim 1 , wherein the heat radiation member has an area corresponding to an area of the power supply device.
12. The wireless power transmitter of claim 1 , wherein the first passage groove includes first and second sub-passage grooves, the first and second sub-passage grooves divided from each other at a first inlet unit connected to the inlet device and met with each other at a second inlet unit connected to the second passage groove.
13. The wireless power transmitter of claim 1 , wherein the inlet device includes one of a blower and a fan.
14. A wireless power transmitter, comprising:
a transmission coil to wirelessly transmit power to a wireless power receiver;
an inlet device on one side of the transmission coil to supply air to the transmission coil;
a radiation unit to radiate heat of the transmission coil by changing a movement path of the supplied air, wherein the radiation unit includes a first passage groove connected to the inlet device;
a power supply device connected to the transmission coil to supply power to the transmission coil;
a heat radiation member on the power supply device; and
a second passage groove connected to an opposite side of the first passage groove and disposed on the heat radiation member.
15. The wireless power transmitter of claim 14 , wherein the first passage groove has a close loop structure corresponding to a shape of the transmission coil.
16. The wireless power transmitter of claim 14 , wherein the first and second passage grooves are disposed on a case.