Hearing aid and hearing-aid charging system
First Claim
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1. A hearing aid comprising:
- a secondary battery having a nominal voltage higher than a nominal voltage of an air battery;
at least one driving component driven by power supplied from the secondary battery;
a charging unit configured to supply DC power at a predetermined voltage to the secondary battery;
a transformation unit configured to output a charging power of the secondary battery to the at least one driving component, at a voltage suitable for driving the at least one driving component;
a power-receiving module configured to receive resonance-type power from the outside in a contactless manner; and
a rectifier configured to output DC power to the charging unit by rectifying the resonance-type power supplied to the power-receiving module, at least one of the rectifier, the charging unit, the transformation unit, and the secondary battery being provided in a magnetic field space that is formed by a resonance phenomenon in the power-receiving module to have a lowest magnetic field strength than a magnetic field strength in any other part of the hearing aid.
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Abstract
In regard to a hearing aid and a hearing aid charging system, frequent replacement of a battery is avoided even if power consumption is large, and the structure is simplified and waterproofness is improved. A Hearing aid includes a secondary battery having a nominal voltage higher than a nominal voltage of an air battery, a driving component driven by power supplied from the secondary battery, and a transformation unit configured to output the charging power of the secondary battery at a voltage suitable for driving the driving component.
25 Citations
9 Claims
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1. A hearing aid comprising:
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a secondary battery having a nominal voltage higher than a nominal voltage of an air battery; at least one driving component driven by power supplied from the secondary battery; a charging unit configured to supply DC power at a predetermined voltage to the secondary battery; a transformation unit configured to output a charging power of the secondary battery to the at least one driving component, at a voltage suitable for driving the at least one driving component; a power-receiving module configured to receive resonance-type power from the outside in a contactless manner; and a rectifier configured to output DC power to the charging unit by rectifying the resonance-type power supplied to the power-receiving module, at least one of the rectifier, the charging unit, the transformation unit, and the secondary battery being provided in a magnetic field space that is formed by a resonance phenomenon in the power-receiving module to have a lowest magnetic field strength than a magnetic field strength in any other part of the hearing aid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification