CHARGING APPARATUS
First Claim
1. A charging apparatus that transmits electrical power to a charging target device by electromagnetic induction to charge a secondary battery of the charging target device, the charging apparatus comprising:
- a position detection section that detects a position of a power reception coil of the charging target device placed on the charging apparatus; and
an attenuation prevention section that prevents attenuation of radio waves or a magnetic field generated around the charging apparatus.
4 Assignments
0 Petitions
Accused Products
Abstract
A charging apparatus is provided that avoids a reduction in the strength of radio waves or a magnetic field used by a charging target device having a wireless communication function and reduces an influence on the radio waves or magnetic field. In this apparatus, position detection section (201) detects a position of power reception coil (251) of charging target device (150) placed on charging table (101). Power transmission coil (208) is made close to power reception coil (251) and transmits electric power. Coil moving mechanism (207) brings power transmission coil (208) close to the position of power reception coil (251) that is detected by position detection section (201).
21 Citations
13 Claims
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1. A charging apparatus that transmits electrical power to a charging target device by electromagnetic induction to charge a secondary battery of the charging target device, the charging apparatus comprising:
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a position detection section that detects a position of a power reception coil of the charging target device placed on the charging apparatus; and an attenuation prevention section that prevents attenuation of radio waves or a magnetic field generated around the charging apparatus. - View Dependent Claims (2, 8, 9, 10, 11)
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3. A charging apparatus that transmits electrical power to a charging target device by electromagnetic induction to charge a secondary battery of the charging target device, the charging apparatus comprising
a position detection section that detects a position of a power reception coil of the charging target device placed on the charging apparatus, wherein the position detection section comprises: -
a plurality of rows of coils disposed at predetermined intervals; and an LC parallel resonant circuit provided to the plurality of rows of coils, wherein a resonance frequency of the LC parallel resonant circuit is a frequency that is included in a frequency band of radio waves used by the charging target device for wireless communication. - View Dependent Claims (4, 5, 6, 7)
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12. A charging apparatus that transmits electrical power to a charging target device by electromagnetic induction to charge a secondary battery of the charging target device, the charging apparatus comprising:
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a position detection section that detects a position of a power reception coil of the charging target device placed on the charging apparatus; and a near field communication antenna that enables near field communication between the charging target device and an external device by electromagnetic induction, wherein the near field communication antenna is any one of a plurality of coils of the position detection section. - View Dependent Claims (13)
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Specification