Power transmission apparatus, power transmission device and power reception device for power transmission apparatus
First Claim
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1. A power transmission apparatus comprising:
- a first main body including a first surface inclined with respect to a horizontal plane, and a second surface adjacent to the first surface and being substantially in a perpendicular relation with respect to the first surface, the first surface is lower toward a line of intersection on which the first surface and the second surface cross;
a first power transmission coil disposed on the first surface and having a tapered shape toward the line of intersection;
a second power transmission coil disposed on the second surface, having a tapered shape toward the line of intersection, and disposed symmetrically to the first power transmission coil with respect to the line of intersection;
an AC power source that supplies AC power to the first power transmission coil and the second power transmission coil;
a second main body including a third surface and a fourth surface which respectively face the first surface and the second surface;
a power reception coil disposed across the third surface and the fourth surface; and
a rectifying circuit present in the second main body, and the rectifying circuit rectifies AC power inducted in the power reception coil.
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Abstract
In a power transmission apparatus which transmits power from a power transmission device to a power reception device in a noncontact manner, the power transmission device includes a first main body supporting the power reception device on adjacent first and second surfaces, and a power transmission coil formed by planar coils which are respectively symmetrically disposed on the first and second surfaces with respect to an intersection between the first and second surfaces inside the first main body, and includes an extension region in which an occupation area of the coils gradually increases while becoming distant from a part close to the intersection. The power reception device includes a second main body that includes third and fourth surfaces which respectively face the first and second surfaces, and a power reception coil disposed in the second main body so as to correspond to the third and fourth surfaces.
16 Citations
17 Claims
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1. A power transmission apparatus comprising:
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a first main body including a first surface inclined with respect to a horizontal plane, and a second surface adjacent to the first surface and being substantially in a perpendicular relation with respect to the first surface, the first surface is lower toward a line of intersection on which the first surface and the second surface cross; a first power transmission coil disposed on the first surface and having a tapered shape toward the line of intersection; a second power transmission coil disposed on the second surface, having a tapered shape toward the line of intersection, and disposed symmetrically to the first power transmission coil with respect to the line of intersection; an AC power source that supplies AC power to the first power transmission coil and the second power transmission coil; a second main body including a third surface and a fourth surface which respectively face the first surface and the second surface; a power reception coil disposed across the third surface and the fourth surface; and a rectifying circuit present in the second main body, and the rectifying circuit rectifies AC power inducted in the power reception coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power transmission device comprising:
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a first main body including a first surface inclined with respect to a horizontal plane and a second surface adjacent to the first surface and being substantially in a perpendicular relation with respect to the first surface, the first surface is lower toward a line of intersection on which the first surface and the second surface cross; a first power transmission coil disposed on the first surface and having a tapered shape toward the line of intersection; a second power transmission coil disposed on the second surface, having a tapered shape toward the line of intersection, and disposed symmetrically to the first power transmission coil with respect to the line of intersection; and an AC power source that supplies AC power to the first power transmission coil and the second power transmission coil. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification
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Current AssigneeToshiba Tec Corporation (Toshiba Corporation)
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Original AssigneeToshiba Tec Corporation (Toshiba Corporation)
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InventorsKanagawa, Masahiro, Kato, Masakazu
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Primary Examiner(s)Fureman, Jared
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Assistant Examiner(s)Bukhari, Aqeel
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Application NumberUS15/609,243Publication NumberTime in Patent Office419 DaysField of SearchNoneUS Class CurrentCPC Class CodesH01F 27/2871 Pancake coilsH01F 38/14 Inductive couplings for wir...H02J 50/005 Mechanical details of housi...H02J 50/12 of the resonant typeH02J 50/90 involving detection or opti...
