Battery charger
First Claim
1. A battery charger without electrical contacts comprising a primary coil magnetically coupled to a secondary coil housed in portable electronic equipment, a high frequency power supply that supplies high frequency power to the primary coil, and an external case that holds the primary coil and the high frequency power supply;
- the high frequency power supply converts input power to high frequency power and supplies it to the primary coil, primary coil high frequency power is conveyed to the secondary coil by magnetic induction, and secondary coil AC is rectified to charge the battery pack contained in the portable electronic equipment;
the battery charger without electrical contacts is provided with internal batteries that are charged by input power and supply power to the high frequency power supply, and with a charging circuit that charges the internal batteries with input power;
the external case is formed as a flat panel of given thickness providing storage space for internal batteries between a top plate and a bottom plate, internal batteries housed in the external case storage space are rectangular batteries and these rectangular batteries are housed in the storage space with their two opposing flat surfaces oriented parallel to the top plate and bottom plate, and a planar primary coil wound in a spiral shape is disposed in the external case storage space or in the top plate;
wherein the internal batteries are charged by input power;
when no power is input, the high frequency power supply converts power supplied from the internal batteries to high frequency power and supplies it to the primary coil to charge the portable electronic equipment battery pack.
2 Assignments
0 Petitions
Accused Products
Abstract
High frequency power supplied to the primary coil from the high frequency power supply is transferred to the secondary coil by magnetic induction, and secondary coil AC is rectified to charge the battery pack housed in the portable electronic equipment. The battery charger is provided with internal batteries that are charged by input power and supply power to the high frequency power supply, and with a charging circuit to charge the internal batteries. The external case is provided with storage space between its top plate and bottom plate, and internal batteries, which are rectangular batteries, and a planar primary coil wound in a spiral shape are disposed in that storage space. The battery charger charges the internal batteries with input power, and when no power is input, internal battery power is converted to high frequency power and supplied to the primary coil to charge the battery pack.
104 Citations
24 Claims
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1. A battery charger without electrical contacts comprising a primary coil magnetically coupled to a secondary coil housed in portable electronic equipment, a high frequency power supply that supplies high frequency power to the primary coil, and an external case that holds the primary coil and the high frequency power supply;
- the high frequency power supply converts input power to high frequency power and supplies it to the primary coil, primary coil high frequency power is conveyed to the secondary coil by magnetic induction, and secondary coil AC is rectified to charge the battery pack contained in the portable electronic equipment;
the battery charger without electrical contacts is provided with internal batteries that are charged by input power and supply power to the high frequency power supply, and with a charging circuit that charges the internal batteries with input power;
the external case is formed as a flat panel of given thickness providing storage space for internal batteries between a top plate and a bottom plate, internal batteries housed in the external case storage space are rectangular batteries and these rectangular batteries are housed in the storage space with their two opposing flat surfaces oriented parallel to the top plate and bottom plate, and a planar primary coil wound in a spiral shape is disposed in the external case storage space or in the top plate;
wherein the internal batteries are charged by input power;
when no power is input, the high frequency power supply converts power supplied from the internal batteries to high frequency power and supplies it to the primary coil to charge the portable electronic equipment battery pack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- the high frequency power supply converts input power to high frequency power and supplies it to the primary coil, primary coil high frequency power is conveyed to the secondary coil by magnetic induction, and secondary coil AC is rectified to charge the battery pack contained in the portable electronic equipment;
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18. A combination of battery charger without electrical contacts and portable electronic equipment wherein the battery pack housed in the portable electronic equipment is provided with a secondary coil, and a rectifying circuit that rectifies AC induced in the secondary coil;
- and rectifying circuit output is input to the portable electronic equipment.
- View Dependent Claims (19, 20, 21, 22, 23, 24)
Specification