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1. (WO2018123770) FOREIGN METAL DETECTION DEVICE, WIRELESS POWER-SUPPLYING DEVICE, WIRELESS POWER-RECEIVING DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM
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Pub. No.: WO/2018/123770 International Application No.: PCT/JP2017/045746
Publication Date: 05.07.2018 International Filing Date: 20.12.2017
IPC:
H02J 50/60 (2016.01) ,G01V 3/10 (2006.01) ,H02J 50/10 (2016.01) ,G01R 23/10 (2006.01)
[IPC code unknown for H02J 50/60]
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
08
operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
10
using induction coils
[IPC code unknown for H02J 50/10]
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
23
Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
02
Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
10
by converting frequency into a train of pulses, which are then counted
Applicants:
TDK株式会社 TDK CORPORATION [JP/JP]; 東京都港区芝浦三丁目9番1号 3-9-1, Shibaura, Minato-ku Tokyo 1080023, JP
Inventors:
近藤 和樹 KONDO Kazuki; JP
大嶋 一則 OSHIMA Kazunori; JP
後谷 明 GOTANI Akira; JP
福澤 成敏 FUKUZAWA Narutoshi; JP
Agent:
鷲頭 光宏 WASHIZU Mitsuhiro; JP
緒方 和文 OGATA Kazufumi; JP
黒瀬 泰之 KUROSE Yasuyuki; JP
Priority Data:
2016-25382027.12.2016JP
Title (EN) FOREIGN METAL DETECTION DEVICE, WIRELESS POWER-SUPPLYING DEVICE, WIRELESS POWER-RECEIVING DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM
(FR) DISPOSITIF DE DÉTECTION DE MÉTAL ÉTRANGER, DISPOSITIF D'ALIMENTATION ÉLECTRIQUE SANS FIL, DISPOSITIF DE RÉCEPTION D'ÉLECTRICITÉ SANS FIL ET SYSTÈME DE TRANSMISSION D'ÉLECTRICITÉ SANS FIL
(JA) 金属異物検出装置、ワイヤレス給電装置、ワイヤレス受電装置、及びワイヤレス電力伝送システム
Abstract:
(EN) [Problem] To reduce the likelihood of failing to detect a foreign metal. [Solution] A foreign metal detection device 14A is characterized by being equipped with: a sensor unit S which has at least one antenna coil L3 that receives a magnetic field or electric current and generates a vibration signal Vb; a vibration time length measurement circuit 145 which measures the vibration time length TL, which expresses the length of time required by the vibration of a vibration signal Vc outputted by the sensor unit S and of a prescribed wavenumber greater than 1; and a determination circuit 146 for determining whether there is a foreign metal near the antenna coil L3, on the basis of the vibration time length TL, and a reference time length CTL, which is the vibration time length TL when there is not a foreign metal nearby.
(FR) La présente invention a pour objet de réduire la probabilité d'échec de détection d'un métal étranger. Un dispositif de détection de métal étranger (14A) selon l'invention est caractérisé en ce qu'il comprend : une unité de détection (S) qui a au moins une bobine d'antenne (L3) qui reçoit un champ magnétique ou un courant électrique et génère un signal de vibration (Vb) ; un circuit de mesure de durée de vibration (145) qui mesure la durée de vibration (TL), qui exprime la durée requise par la vibration d'un signal de vibration (Vc) émis par l'unité de détection (S) et d'un nombre d'onde prescrit supérieur à (1) ; et un circuit de détermination (146) pour déterminer s'il y a un métal étranger à proximité de la bobine d'antenne (L3), sur la base de la durée vibration (TL), et d'une durée de référence (CTL), qui est la durée de vibration (TL) lorsqu'il n'y a pas de métal étranger à proximité.
(JA) 【課題】金属異物の検出に失敗する可能性を低減する。 【解決手段】金属異物検出装置14Aは、磁界または電流を受けて振動信号Vbを発生する少なくとも1つのアンテナコイルL3を有するセンサ部Sと、1より大きい所定波数分のセンサ部Sから出力される振動信号Vcの振動に要する時間の長さを示す振動時間長TLを計測する振動時間長計測回路145と、振動時間長TLと接近する金属異物が無いときの振動時間長TLである基準時間長CTLとに基づいて、アンテナコイルL3に接近する金属異物の有無を判定する判定回路146と、を備えることを特徴とする。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)