WIRELESS CHARGING DEVICE AND CHARGING METHOD THEREOF
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Accused Products
Abstract
A wireless charging device includes a transmitting-end ferrite core and a transmitting-end coil, wherein the transmitting-end ferrite core have a bottom plate and two upright plates for forming a U-shaped structure defining a charging space therein. One or more wireless power receiving apparatus is put in the charging space. The wireless power receiving apparatus includes a receiving-end coil and a receiving-end ferrite plate, wherein the receiving-end ferrite plate is vertical to the two upright plates. When electrical current flows through the transmitting-end coil to generate an electromagnetic field in the charging space, the electromagnetic field via the two upright plates goes through each of the receiving-end ferrite plates to form an electromagnetic loop. Each of the receiving-end coils generates a charging electrical current induced by the electromagnetic field. Therefore, the present invention can achieve wireless charging to more than one wireless power receiving apparatus at the same time.
16 Citations
78 Claims
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1-43. -43. (canceled)
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44. A wireless charging device capable of wireless charging a plurality of wireless power receiving apparatus, the wireless charging device comprising:
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at least one transmitting-end ferrite core comprising a bottom plate and two upright plates to form a U-shaped structure, the transmitting-end ferrite core defining a charging space therein to accommodate the plurality of wireless power receiving apparatus; and At least one transmitting-end coil, wherein each of the wireless power receiving apparatus has a receiving-end coil and a receiving-end ferrite plate and the plurality of wireless power receiving apparatus are arranged in the charging space vertical to the upright plates of the transmitting-end ferrite core; when electrical current flows through the transmitting-end coil to generate an electromagnetic field in the charging space, the electromagnetic field via the two upright plates goes through each of the receiving-end ferrite plates to form an electromagnetic loop, whereby each of the receiving-end coils generates a charging electrical current induced by the electromagnetic field. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A method for wireless charging, comprising:
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providing at least one transmitting-end ferrite core and at least one transmitting-end coil, the transmitting-end ferrite core comprising a bottom plate and two upright plates to form a U-shaped structure, the transmitting-end ferrite core defining a charging space therein; placing at least one wireless power receiving apparatus into the charging space, each of wireless power receiving apparatus having a receiving-end coil and a receiving-end ferrite plate, the receiving-end ferrite plate of the wireless power receiving apparatus being vertical to the upright plates of the transmitting-end ferrite; and conducing electrical current flowing through the transmitting-end coil to generate an electromagnetic field in the charging space, the electromagnetic field via the two upright plates goes through each of the receiving-end ferrite plates to form an electromagnetic loop, whereby each of the receiving-end coils generates a charging electrical current induced by the electromagnetic field. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65)
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66. A wireless charging device capable of wireless charging a plurality of wireless power receiving apparatus, the wireless charging device comprising:
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a transmitting-end ferrite core comprising a bottom plate and an upright plate surrounding the bottom plate to form a barrel-shaped structure with an opened side, the transmitting-end ferrite core defining a charging space therein to accommodate one or more wireless power receiving apparatus; and a first transmitting-end coil arranged on an inner face of the upright plate; wherein each of the wireless power receiving apparatus has a receiving-end coil and a receiving-end ferrite plate and the plurality of wireless power receiving apparatus are arranged in the charging space; when electrical current flows through the first transmitting-end coil to generate an electromagnetic field in the charging space, each of the receiving-end coils generates a charging electrical current induced by the electromagnetic field.
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67. The wireless charging device in 66, wherein the wireless power receiving apparatus is placed in arbitrary position in the charging space.
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68. The wireless charging device in 66, further comprising a charging stage made of non-metal material and being of box shape with one opened side, the charging stage having a bottom part and two sidewalls, the bottom plate and the upright plates of the transmitting-end ferrite core are respectively arranged on the bottom part and the sidewalls of the charging stage.
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69. The wireless charging device in 68, wherein the first transmitting-end coil is of rectangular box shape with one opened side and corresponding to the charging stage.
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70. The wireless charging device in 68, wherein the first transmitting-end coil is of circular or elliptic box shape with one opened side and corresponding to the charging stage.
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71. The wireless charging device in 66, further comprising:
a second transmitting-end coil arranged on the bottom plate, the second transmitting-end coil generating electromagnetic field in the charging space when electric current flows through the second transmitting-end coil, whereby the receiving-end coils generates a charging electrical current induced by the electromagnetic field of the second transmitting-end coil.
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72. The wireless charging device in 71, wherein the bottom plate is a rectangular ferrite plate and the second transmitting-end coil is wound on an outer face of the bottom plate.
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73. A method for wireless charging, comprising:
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providing a transmitting-end ferrite core and a first transmitting-end coil, the transmitting-end ferrite core comprising a bottom plate and an upright plate surrounding the bottom plate to form a barrel-shaped structure with an opened side, the transmitting-end ferrite core defining a charging space therein, the first transmitting-end coil arranged on an inner face of the upright plate; placing one or more wireless power receiving apparatus into the charging space, each of wireless power receiving apparatus having a receiving-end coil and a receiving-end ferrite plate; and conducing electrical current to the first transmitting-end coil to generate an electromagnetic field in the charging space, each of the receiving-end coils generating a charging electrical current induced by the electromagnetic field. - View Dependent Claims (74, 75, 76, 77, 78)
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Specification