ELECTRIC POWER RECEPTION DEVICE, ELECTRIC POWER TRANSMISSION DEVICE, AND ELECTRIC POWER TRANSFER SYSTEM
First Claim
1. An electric power reception device comprising:
- an electric power reception section configured to receive electric power in a non-contact manner from an electric power transmission section that is provided externally and to include a first coil that is formed by winding a first coil wire with a pitch,the first coil including a first portion and a second portion that is adjacent to the first portion with the pitch, andthe first portion and the second portion being arranged in a direction of arrangement, wherein,a cross section of the first coil wire that is perpendicular to a direction of extension of the first coil wire is configured such that a length of a first projection line that is obtained by projecting the cross section from the direction of arrangement onto a first imaginary plane that is perpendicular to the direction of arrangement is larger than a length of a second projection line that is obtained by projecting the cross section from a direction that is perpendicular to the direction of arrangement onto a second imaginary plane that is perpendicular to the first imaginary plane,the pitch at a center portion of the first coil that is positioned at a center portion of the first coil wire in a longitudinal direction is larger than the pitch at an end portion of the first coil that is positioned at a center portion of the first coil wire in a longitudinal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric power reception device includes an electric power receiver that receives electric power in a non-contact manner from an electric power transmitter that is provided externally. The electric power receiver includes a first coil that is formed by winding a first coil wire with a pitch. The first coil includes a first portion and a second portion that are adjacent to the first portion with the pitch. The first portion and the second portion are arranged in a direction of arrangement. A cross section of the first coil wire that is perpendicular to a direction of extension of the first coil wire is configured such that a length of a first projection line that is obtained by projecting the cross section from the direction of arrangement onto a first imaginary plane that is perpendicular to the direction of arrangement is larger than a length of a second projection line that is obtained by projecting the cross section from a direction that is perpendicular to the direction of arrangement onto a second imaginary plane that is perpendicular to the first imaginary plane.
9 Citations
24 Claims
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1. An electric power reception device comprising:
an electric power reception section configured to receive electric power in a non-contact manner from an electric power transmission section that is provided externally and to include a first coil that is formed by winding a first coil wire with a pitch, the first coil including a first portion and a second portion that is adjacent to the first portion with the pitch, and the first portion and the second portion being arranged in a direction of arrangement, wherein, a cross section of the first coil wire that is perpendicular to a direction of extension of the first coil wire is configured such that a length of a first projection line that is obtained by projecting the cross section from the direction of arrangement onto a first imaginary plane that is perpendicular to the direction of arrangement is larger than a length of a second projection line that is obtained by projecting the cross section from a direction that is perpendicular to the direction of arrangement onto a second imaginary plane that is perpendicular to the first imaginary plane, the pitch at a center portion of the first coil that is positioned at a center portion of the first coil wire in a longitudinal direction is larger than the pitch at an end portion of the first coil that is positioned at a center portion of the first coil wire in a longitudinal direction. - View Dependent Claims (2, 3, 4, 6, 8, 9, 10, 11)
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5. (canceled)
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7. (canceled)
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12. An electric power transmission device comprising:
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an electric power transmission section configured to transmit electric power in a non-contact manner to an electric power reception section that is provided externally and that includes a second coil that is formed by winding a second coil wire with a pitch, the second coil including a third portion and a fourth portion that is adjacent to the third portion with the pitch, and the third portion and the fourth portion being arranged in a direction of arrangement, wherein a cross section of the second coil wire that is perpendicular to a direction of extension of the second coil wire is configured such that a length of a third projection line that is obtained by projecting the cross section from the direction of arrangement onto a third imaginary plane that is perpendicular to the direction of arrangement is larger than a length of a fourth projection line that is obtained by projecting the cross section from a direction that is perpendicular to the direction of arrangement onto a fourth imaginary plane that is perpendicular to the third imaginary plane, the pitch at a center portion of the second coil that is positioned at a center portion of the second coil wire in a longitudinal direction is larger than the pitch at an end portion of the second coil that is positioned at a center portion of the second coil wire in a longitudinal direction. - View Dependent Claims (13, 14, 15, 17, 19, 20, 21, 22)
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16. (canceled)
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18. (canceled)
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23. An electric power transfer system comprising:
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an electric power reception device that includes an electric power reception section that includes a first coil that is formed by winding a first coil wire with a pitch, the first coil including a first portion and a second portion that is adjacent to the first portion with the pitch, and the first portion and the second portion being arranged in a direction of arrangement; and an electric power transmission device that includes an electric power transmission section that transmits electric power in a non-contact manner to the electric power reception section, wherein a cross section of the first coil wire that is perpendicular to a direction of extension of the first coil wire is configured such that a length of a first projection line that is obtained by projecting the cross section from the direction of arrangement onto a first imaginary plane that is perpendicular to the direction of arrangement is larger than a length of a second projection line that is obtained by projecting the cross section from a direction that is perpendicular to the direction of arrangement onto a second imaginary plane that is perpendicular to the first imaginary plane; the pitch at a center portion of the first coil that is positioned at a center portion of the first coil wire in a longitudinal direction is larger than the pitch at an end portion of the first coil that is positioned at a center portion of the first coil wire in a longitudinal direction.
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24. An electric power transfer system comprising:
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an electric power reception device that includes an electric power reception section; and an electric power transmission device that includes an electric power transmission section that includes a second coil that is formed by winding a second coil wire with a pitch and that transmits electric power in a non-contact manner to the electric power reception section, the second coil including a third portion and a fourth portion that is adjacent to the third portion with the pitch, and the third portion and the fourth portion being arranged in a direction of arrangement, wherein a cross section of the second coil wire that is perpendicular to a direction of extension of the second coil wire is configured such that a length of a third projection line that is obtained by projecting the cross section from the direction of arrangement onto a third imaginary plane that is perpendicular to the direction of arrangement is larger than a length of a fourth projection line that is obtained by projecting the cross section from a direction that is perpendicular to the direction of arrangement onto a fourth imaginary plane that is perpendicular to the third imaginary plane, the pitch at a center portion of the second coil that is positioned at a center portion of the second coil wire in a longitudinal direction is larger than the pitch at an end portion of the second coil that is positioned at a center portion of the second coil wire in a longitudinal direction.
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Specification