Power transmission device
First Claim
1. A power transmission device configured to transmit power underwater to an underwater vehicle having a power reception coil, the power transmission device comprising:
- a power transmission coil configured to transmit power to the power reception coil through a magnetic field;
a power transmission unit configured to transmit an alternating current voltage having a frequency of 10 kilohertz (kHz) or lower to the power transmission coil;
a first capacitor connected to the power transmission coil and configured to form a resonance circuit resonating at the frequency with the power transmission coil;
at least one repeating coil configured to transmit power to the power reception coil using the magnetic field generated from the power transmission coil;
at least one second capacitor connected to the at least one repeating coil and configured to form a resonance circuit resonating at the frequency with the at least one repeating coil;
a connector disposed underwater and configured to connect the power transmission coil and the at least one repeating coil to each other with a gap; and
another connector configured to connect the at least one repeating coil to each other with a gap, wherein the at least one repeating coil are disposed substantially parallel to each other, and more than half of opening surfaces formed by the at least one repeating coil overlap to each other.
1 Assignment
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Accused Products
Abstract
A power transmission device is configured to transmit power underwater to an underwater vehicle having a power reception coil. The power transmission device includes a power transmission coil configured to transmit power to the power reception coil through a magnetic field, a power transmission unit configured to transmit an alternating current voltage having a frequency a 10 kHz or lower to the power transmission coil, and a first capacitor connected to the power transmission coil and configured to form a resonance circuit resonating at the frequency with the power transmission coil.
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Citations
10 Claims
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1. A power transmission device configured to transmit power underwater to an underwater vehicle having a power reception coil, the power transmission device comprising:
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a power transmission coil configured to transmit power to the power reception coil through a magnetic field; a power transmission unit configured to transmit an alternating current voltage having a frequency of 10 kilohertz (kHz) or lower to the power transmission coil; a first capacitor connected to the power transmission coil and configured to form a resonance circuit resonating at the frequency with the power transmission coil; at least one repeating coil configured to transmit power to the power reception coil using the magnetic field generated from the power transmission coil; at least one second capacitor connected to the at least one repeating coil and configured to form a resonance circuit resonating at the frequency with the at least one repeating coil; a connector disposed underwater and configured to connect the power transmission coil and the at least one repeating coil to each other with a gap; and another connector configured to connect the at least one repeating coil to each other with a gap, wherein the at least one repeating coil are disposed substantially parallel to each other, and more than half of opening surfaces formed by the at least one repeating coil overlap to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power transmission device configured to transmit power underwater to an underwater vehicle having a power reception coil, the power transmission device comprising:
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a power transmission coil configured to transmit power to the power reception coil through a magnetic field; a power transmission unit configured to transmit an alternating current voltage having a frequency of 10 kilohertz (kHz) or lower to the power transmission coil; a first capacitor connected to the power transmission coil and configured to form a resonance circuit resonating at the frequency with the power transmission coil; at least one repeating coil configured to transmit power to the power reception coil using the magnetic field generated from the power transmission coil; at least one second capacitor connected to the at least one repeating coil and configured to form a resonance circuit resonating at the frequency with the at least one repeating coil; a connector disposed underwater and configured to connect the power transmission coil and the at least one repeating coil to each other with a gap; and another connector configured to connect the at least one repeating coil to each other with a gap, wherein a distance of the gap between the at least one repeating coil is greater than or equal to a radius of each of the at least one repeating coil. - View Dependent Claims (10)
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Specification