Title:
VOLTAGE DETECTOR, ABNORMALITY DETECTION DEVICE, NON-CONTACT POWER TRANSFER DEVICE, NON-CONTACT POWER RECEIVER DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/121800
Kind Code:
A1
Abstract:
Disclosed is a voltage detector for detecting a voltage generated between a first resonance coil (240; 110) and a second resonance coil (110; 240) that conducts at least one of the transfer of an electric power and the reception of an electric power by electromagnetic resonance in a non-contact manner, wherein the first and second resonance coils face to each other. The voltage detector comprises: a first high-impedance element (510) of which one terminal is connected to one terminal of the second resonance coil (110; 240); a second high-impedance element (520) of which one terminal is connected to the other terminal of the second resonance coil (110; 240); a low-impedance element (550) which is connected between the other terminal of the first high-impedance element (510) and the other terminal of the second high-impedance element (520) and which has a lower impedance than those of the first and second high-impedance elements (510, 520); and an output terminal (560) which can output a signal associated with a voltage to be applied to both termini of the low-impedance element (550). The voltage detector can detect an abnormality in a resonance coil while reducing the influence on the resonance state of the resonance coil and the cost for the resonance coil in a resonance-mode non-contact power supply system.
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Inventors:
SAKAKIBARA, Hiroyuki (INC. 14, Iwaya, Shimohasumi-cho, Nishio-sh, Aichi 12, 〒4450012, JP)
榊原 啓之 (〒12 愛知県西尾市下羽角町岩谷１４番地 株式会社日本自動車部品総合研究所内 Aichi, 〒4450012, JP)
榊原 啓之 (〒12 愛知県西尾市下羽角町岩谷１４番地 株式会社日本自動車部品総合研究所内 Aichi, 〒4450012, JP)
Application Number:
JP2010/058974
Publication Date:
October 06, 2011
Filing Date:
May 27, 2010
Export Citation:
Assignee:
NIPPON SOKEN, INC. (14 Iwaya, Shimohasumi-cho Nishio-sh, Aichi 12, 〒4450012, JP)
株式会社日本自動車部品総合研究所 (〒12 愛知県西尾市下羽角町岩谷１４番地 Aichi, 〒4450012, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
株式会社日本自動車部品総合研究所 (〒12 愛知県西尾市下羽角町岩谷１４番地 Aichi, 〒4450012, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
International Classes:
H02J17/00; B60L11/18
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (Fukami Patent Office, Nakanoshima Central Tower 22nd Floor, 2-7, Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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Claims:
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