CONTACTLESS CHARGING SYSTEM AND CONTACTLESS CHARGING METHOD
First Claim
1. A contactless charging system which includes a transmitting unit having a primary coil and a receiving unit having a secondary coil, which charges a battery electrically connected to the secondary coil by electromagnetic induction generated between the primary coil and the secondary coil, and which supplements charging efficiency of the battery by varying a charging frequency used in the electromagnetic induction in proportion to the charging efficiency battery that varies according to the position of the secondary coil relative to the primary coil, the system comprising:
- a charging efficiency notifying device installed in the transmitting unit or the receiving unit, wherein the charging efficiency notifying device includes a frequency detecting unit detecting the charging frequency when charging is performed by making the receiving unit get close to the transmitting unit and a notification unit outputting the charging efficiency acquired from the detected charging frequency to enable a user to know the charging efficiency.
1 Assignment
0 Petitions
Accused Products
Abstract
A contactless charging method according to the present invention is applied to a contactless charging system 1 which comprises a transmitting unit 10 having a primary coil 11 and a receiving unit 20 having a secondary coil 21 and which charges a battery 30 electrically connected to the secondary coil 21 by the electromagnetic induction generated between the primary coil 11 and the secondary coil 21 and which supplements the charging efficiency of the battery 30 by varying a charging frequency used in the electromagnetic induction in proportion to the charging efficiency of the battery 30 that varies according to the position of the secondary coil 21 relative to the primary coil 11. The contactless charging method comprises: a step of detecting a charging frequency when a charging operation is performed by enabling the primary coil 11 to get close to the secondary coil 21; and a step of outputting the charging efficiency of the battery 30 acquired from the detected charging frequency such that a user may know the charging efficiency.
-
Citations
7 Claims
-
1. A contactless charging system which includes a transmitting unit having a primary coil and a receiving unit having a secondary coil, which charges a battery electrically connected to the secondary coil by electromagnetic induction generated between the primary coil and the secondary coil, and which supplements charging efficiency of the battery by varying a charging frequency used in the electromagnetic induction in proportion to the charging efficiency battery that varies according to the position of the secondary coil relative to the primary coil, the system comprising:
a charging efficiency notifying device installed in the transmitting unit or the receiving unit, wherein the charging efficiency notifying device includes a frequency detecting unit detecting the charging frequency when charging is performed by making the receiving unit get close to the transmitting unit and a notification unit outputting the charging efficiency acquired from the detected charging frequency to enable a user to know the charging efficiency.
-
2. A contactless charging method of a contactless charging system which includes a transmitting unit having a primary coil and a receiving unit having a secondary coil, which charges a battery electrically connected to the secondary coil by electromagnetic induction generated between the primary coil and the secondary coil, and which supplements charging efficiency of the battery by varying a charging frequency used in the electromagnetic induction in proportion to the charging efficiency battery that varies according to the position of the secondary coil relative to the primary coil, the method comprising:
detecting the charging frequency when charging is performed by making the secondary coil get close to the primary coil and outputting the charging efficiency acquired from the detected charging frequency to enable a user to know the charging efficiency. - View Dependent Claims (3, 4, 5, 6, 7)
Specification