JP6273615B2 - 異物検出装置および非接触充電システム - Google Patents
異物検出装置および非接触充電システム Download PDFInfo
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- JP6273615B2 JP6273615B2 JP2015501335A JP2015501335A JP6273615B2 JP 6273615 B2 JP6273615 B2 JP 6273615B2 JP 2015501335 A JP2015501335 A JP 2015501335A JP 2015501335 A JP2015501335 A JP 2015501335A JP 6273615 B2 JP6273615 B2 JP 6273615B2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
図2は、実施の形態1における異物検出装置100の詳細構成を示す図である。送信回路101は、所定の掃引する周波数範囲において周波数を変化させながら高周波電力を出力し、高周波の不平衡信号を伝送する同軸ケーブル102および方向性結合器107を介して、高周波電力を平衡不平衡変換回路104へ出力する。同軸ケーブル102は、中心導体の周りを外部導体でシールドされた伝送線路である。検出用コイル103は、金属の異物201を検出するために、高周波の磁界を発生するコイルであり、n(nは2以上の整数)個の配列されたコイルL1,L2,…,Lnからなる。
以下に、図7に示される異物検出装置200における回路破壊防止について説明する。
以下に、図8に示される異物検出装置300における検出用コイル103を構成するコイル間の相互結合低減について説明する。
101 送信回路
102 同軸ケーブル
103 検出用コイル
104 平衡不平衡変換回路
105 整合回路
106 寄生容量
107 方向性結合器
108 検出回路
109 スイッチ回路
110 回路保護フィルタ
111 短絡回路
120 ダイオード
121,122 バイアス抵抗
201 金属の異物
301 車両
302 送電コイル
303 受電コイル
304 送電コイルケース
305 高周波発振源
Claims (3)
- 検出用コイルと、
所定の周波数の高周波電力を生成する送信回路と、
前記送信回路からの高周波電力を前記検出用コイルへ出力し、前記検出用コイルから反射された電力成分である反射電力を抽出する方向性結合器と、
前記方向性結合器を介して入力される高周波電力である不平衡信号を平衡信号へ変換する平衡不平衡変換回路と、
前記平衡不平衡変換回路と前記検出用コイルとの間のインピーダンス整合を行う整合回路と、
前記方向性結合器によって抽出された反射電力を受信し、基準整合周波数に対して、前記反射電力の整合周波数の方が高い場合には異物が金属であると検出し、前記反射電力の整合周波数の方が低い場合には異物が水であると検出する検出回路と、
送電コイルを収納する送電コイルケースとを備え、
前記検出用コイルは前記送電コイルの上方に配置されて前記送電コイルケースの中に収納され、
前記送電コイルケースの表面と前記検出用コイルとの間の距離が前記送電コイルと前記検出用コイルとの間の距離に比べて短くなるように、前記検出用コイルが配置された異物検出装置。 - 請求項1記載の異物検出装置において、
前記検出用コイルは複数のコイルで構成され、
前記検出用コイルのうち選択されないコイルの両端子を短絡する短絡回路をさらに備えた異物検出装置。 - 請求項1又は2に記載の異物検出装置と、
送電コイルと、
前記送電コイルに所定の周波数の高周波電力を供給する高周波発振源とを備えた非接触充電システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013029601 | 2013-02-19 | ||
JP2013029601 | 2013-02-19 | ||
PCT/JP2014/000831 WO2014129181A1 (ja) | 2013-02-19 | 2014-02-18 | 異物検出装置、異物検出方法、および非接触充電システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2014129181A1 JPWO2014129181A1 (ja) | 2017-02-02 |
JP6273615B2 true JP6273615B2 (ja) | 2018-02-07 |
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Application Number | Title | Priority Date | Filing Date |
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JP2015501335A Active JP6273615B2 (ja) | 2013-02-19 | 2014-02-18 | 異物検出装置および非接触充電システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US9831711B2 (ja) |
EP (1) | EP2961036B1 (ja) |
JP (1) | JP6273615B2 (ja) |
CN (1) | CN105075062B (ja) |
WO (1) | WO2014129181A1 (ja) |
Cited By (1)
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US11563342B2 (en) | 2020-10-23 | 2023-01-24 | Samsung Electronics Co., Ltd. | Method for detecting foreign object using sensor coil and electronic device |
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CN106410991B (zh) * | 2015-07-30 | 2021-08-27 | 松下知识产权经营株式会社 | 异物检测装置、无线送电装置以及无线电力传输*** |
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KR102464384B1 (ko) | 2017-10-20 | 2022-11-08 | 삼성전자주식회사 | 무선 전력 송신 장치 및 그 제어 방법 |
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CN110626187A (zh) * | 2019-10-21 | 2019-12-31 | 中兴新能源汽车有限责任公司 | 一种金属异物检测装置、检测方法及无线充电*** |
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2014
- 2014-02-18 WO PCT/JP2014/000831 patent/WO2014129181A1/ja active Application Filing
- 2014-02-18 JP JP2015501335A patent/JP6273615B2/ja active Active
- 2014-02-18 CN CN201480008212.2A patent/CN105075062B/zh active Active
- 2014-02-18 EP EP14753855.7A patent/EP2961036B1/en active Active
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US11563342B2 (en) | 2020-10-23 | 2023-01-24 | Samsung Electronics Co., Ltd. | Method for detecting foreign object using sensor coil and electronic device |
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Publication number | Publication date |
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EP2961036A4 (en) | 2016-03-09 |
CN105075062B (zh) | 2017-11-14 |
JPWO2014129181A1 (ja) | 2017-02-02 |
US20150355359A1 (en) | 2015-12-10 |
WO2014129181A1 (ja) | 2014-08-28 |
CN105075062A (zh) | 2015-11-18 |
US9831711B2 (en) | 2017-11-28 |
EP2961036A1 (en) | 2015-12-30 |
EP2961036B1 (en) | 2019-08-21 |
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