JP2013093429A - Non-contact transmission device - Google Patents
Non-contact transmission device Download PDFInfo
- Publication number
- JP2013093429A JP2013093429A JP2011234272A JP2011234272A JP2013093429A JP 2013093429 A JP2013093429 A JP 2013093429A JP 2011234272 A JP2011234272 A JP 2011234272A JP 2011234272 A JP2011234272 A JP 2011234272A JP 2013093429 A JP2013093429 A JP 2013093429A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- transmission device
- winding
- terminal
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims description 27
- 238000004804 winding Methods 0.000 claims abstract description 83
- 238000004891 communication Methods 0.000 claims abstract description 52
- 230000009351 contact transmission Effects 0.000 claims abstract description 32
- 230000035699 permeability Effects 0.000 claims description 7
- 230000004907 flux Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
本発明は、非接触で信号及び電力を伝送する非接触伝送デバイスに関する。 The present invention relates to a contactless transmission device that transmits signals and power in a contactless manner.
非接触で「信号」を伝送する非接触通信（ＮＦＣ：Near Field Communication）は、例えば乗車カードや電子マネー等の非接触ＩＣカードが実用化され、近年では携帯電話やスマートフォン等の小型モバイル機器にも広く組み込まれている。ＮＦＣでは、ＩＣモジュールとコイルを備える非接触ＩＣカードや携帯電話をリーダ・ライタに近接させることで、非接触で信号を伝送できる。非接触通信用コイルは、一般的に、薄型化の観点から、ＦＰＣ（フレキシブルプリント基板）上の導体パターンとして形成される。 For non-contact communication (NFC: Near Field Communication) that transmits “signals” in a non-contact manner, non-contact IC cards such as boarding cards and electronic money have been put into practical use. Is also widely incorporated. In NFC, signals can be transmitted in a non-contact manner by bringing a non-contact IC card or mobile phone including an IC module and a coil close to a reader / writer. The non-contact communication coil is generally formed as a conductor pattern on an FPC (flexible printed circuit board) from the viewpoint of thickness reduction.
他方、非接触で「電力」を伝送する非接触給電（Wireless Charging）は、近年では伝送効率が向上し、小型モバイル機器にも採用される流れとなっている。非接触給電では、一方のコイルを備える機器を前記一方のコイルと磁気的に結合する他方のコイルを備える充電器に近接させることで、非接触で電力を伝送できる。非接触給電は、電極が不要であるために、接触不良による充電エラーを避けることができ、また防水構造とするにも適している。非接触給電用のコイルは、一般的に、低抵抗化の観点から、比較的線径の大きい導線が用いられる。 On the other hand, wireless charging, which transmits “electric power” in a non-contact manner, has recently been improved in transmission efficiency and adopted in small mobile devices. In the non-contact power supply, electric power can be transmitted in a non-contact manner by bringing a device including one coil close to a charger including the other coil that is magnetically coupled to the one coil. Since the contactless power feeding does not require an electrode, a charging error due to poor contact can be avoided, and it is also suitable for a waterproof structure. As the coil for non-contact power supply, a conductive wire having a relatively large wire diameter is generally used from the viewpoint of reducing resistance.
小型モバイル機器に非接触給電を採用する場合、既に組み込まれていることの多いＮＦＣと併設することになる。このとき、非接触通信用コイル（ＮＦＣ用コイル）と非接触給電用コイルとを相互に独立した別々のコイルにすると、巻線の総数は、非接触通信用コイルの巻線数と非接触給電用コイルの巻線数との単純な合計となる。他方、省資源化や低コスト化、軽量化の要求はますます高くなっており、巻線に用いられる金属（例えば銅）を幾分でも削減することが求められている。 When non-contact power feeding is adopted for a small mobile device, it is provided with an NFC that is already incorporated. At this time, if the non-contact communication coil (NFC coil) and the non-contact power supply coil are separated from each other, the total number of windings is equal to the number of turns of the non-contact communication coil. It is a simple total with the number of turns of the coil for use. On the other hand, demands for resource saving, cost reduction, and weight reduction are increasing, and it is required to reduce the metal (for example, copper) used for the winding to some extent.
本発明はこうした状況を認識してなされたものであり、その目的は、非接触通信用コイルと非接触給電用コイルとを相互に独立した別々のコイルにする場合と比較して、巻線に用いられる金属を削減することの可能な、非接触伝送デバイスを提供することにある。 The present invention has been made in view of such a situation, and the object of the present invention is to provide a winding as compared with the case where the non-contact communication coil and the non-contact power supply coil are separated from each other. An object of the present invention is to provide a contactless transmission device capable of reducing the amount of metal used.
本発明のある態様は、非接触伝送デバイスである。この非接触伝送デバイスは、
平板状の磁性体と、前記磁性体の一方の面に設けられたコイルとを備え、
前記コイルは、第１及び第２の巻線部と、第１から第３の端子部とを有し、
前記第１の巻線部の両端がそれぞれ前記第１及び第２の端子部に引き出され、
前記第２の巻線部の両端がそれぞれ前記第２及び第３の端子部に引き出され、
前記第１の巻線部を非接触通信用コイルとして利用し、前記第１及び第２の巻線部を合わせて非接触給電用コイルとして利用する。
One embodiment of the present invention is a contactless transmission device. This contactless transmission device
A flat magnetic body, and a coil provided on one surface of the magnetic body,
The coil has first and second winding portions, and first to third terminal portions,
Both ends of the first winding portion are drawn out to the first and second terminal portions, respectively.
Both ends of the second winding part are drawn out to the second and third terminal parts, respectively.
The first winding portion is used as a non-contact communication coil, and the first and second winding portions are combined and used as a non-contact power supply coil.
前記第１の端子部が共通端子であり、前記第２の端子部が非接触通信用端子であり、前記第３の端子部が非接触給電用端子であってもよい。 The first terminal portion may be a common terminal, the second terminal portion may be a contactless communication terminal, and the third terminal portion may be a contactless power feeding terminal.
前記第２の端子部と前記第２の巻線部との間にスイッチが設けられていてもよい。 A switch may be provided between the second terminal portion and the second winding portion.
前記第１及び第２の巻線部は、１本分の線径の厚みとなるように前記磁性体の一方の面上で平面的に周回してもよい。 The first and second winding portions may circulate in a planar manner on one surface of the magnetic body so as to have a thickness corresponding to one wire diameter.
前記第１の巻線部が前記第２の巻線部の外側に位置してもよい。 The first winding portion may be located outside the second winding portion.
前記磁性体は、前記第１の巻線部と前記第２の巻線部との間のリング状の領域において前記一方の面から立ち上がる凸部を有してもよい。 The magnetic body may have a convex portion rising from the one surface in a ring-shaped region between the first winding portion and the second winding portion.
前記磁性体は、前記第１及び第２の巻線部の内側において前記一方の面から立ち上がる凸部を有してもよい。 The magnetic body may have a convex portion rising from the one surface inside the first and second winding portions.
前記第１及び第２の巻線部が実質的に角形形状であってもよい。 The first and second winding portions may have a substantially square shape.
前記第１及び第２の巻線部が実質的に同心配置であってもよい。 The first and second winding portions may be substantially concentric.
前記磁性体の、比透磁率μrの実部をμ'、比透磁率μrの虚部をμ''、tanδ＝μ''／μ'としたとき、室温かつ１４ＭＨｚ以下の周波数において、
２０≦μ'≦５００、
μ''≦２００、かつ
tanδ≦１.０
であり、さらに、
前記磁性体の飽和磁束密度をＢｍとしたとき、室温かつ磁界の強さ１.６ｋＡ／ｍにおいて、Ｂｍ＞３３０ｍＴであってもよい。
Said magnetic body, the real part of the relative permeability mu r mu ', the imaginary part of relative permeability μ r μ'', when the tanδ = μ''/μ' , at frequencies below room temperature and 14 MHz,
20 ≦ μ ′ ≦ 500,
μ '' ≦ 200, and
tanδ ≦ 1.0
And, moreover,
When the saturation magnetic flux density of the magnetic material is Bm, Bm> 330 mT may be used at room temperature and a magnetic field strength of 1.6 kA / m.
なお、以上の構成要素の任意の組合せ、本発明の表現を方法やシステムなどの間で変換したものもまた、本発明の態様として有効である。 It should be noted that any combination of the above-described constituent elements, and those obtained by converting the expression of the present invention between methods and systems are also effective as aspects of the present invention.
本発明によれば、第１の巻線部を非接触通信用コイルとして利用するとともに、前記第１の巻線部を非接触給電用コイルの巻線の一部としても利用するため、非接触通信用コイルと非接触給電用コイルとを相互に独立した別々のコイルにする場合と比較して、巻線に用いられる金属を削減することが可能となる。 According to the present invention, the first winding part is used as a non-contact communication coil and the first winding part is also used as a part of the non-contact power supply coil. Compared with the case where the communication coil and the non-contact power supply coil are made separate from each other, the metal used for the winding can be reduced.
以下、図面を参照しながら本発明の好適な実施の形態を詳述する。なお、各図面に示される同一または同等の構成要素、部材等には同一の符号を付し、適宜重複した説明は省略する。また、実施の形態は発明を限定するものではなく例示であり、実施の形態に記述されるすべての特徴やその組み合わせは必ずしも発明の本質的なものであるとは限らない。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component, member, etc. which are shown by each drawing, and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.
図１は、本発明の実施の形態１に係る非接触伝送デバイス１の平面図である。図２は、図１のII-II断面図である。図３は、非接触伝送デバイス１の模式的配線図である。図４は、非接触伝送デバイス１の等価回路図である。なお、図３及び図４において、第１の巻線部２０を点線で示している。 FIG. 1 is a plan view of a contactless transmission device 1 according to Embodiment 1 of the present invention. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a schematic wiring diagram of the contactless transmission device 1. FIG. 4 is an equivalent circuit diagram of the contactless transmission device 1. 3 and 4, the first winding portion 20 is indicated by a dotted line.
非接触伝送デバイス１は、平板状の磁性体１０と、第１の巻線部２０と、第２の巻線部３０と、第１の端子部としての共通端子１０１（COMMON）と、第２の端子部としての非接触通信用端子１０２（ＮＦＣ端子）と、第３の端子部としての非接触給電用端子１０３（ＷＬＣ端子、ＷＬＣ：WireLess Charge）とを備える。 The non-contact transmission device 1 includes a flat magnetic body 10, a first winding part 20, a second winding part 30, a common terminal 101 (COMMON) as a first terminal part, a second A non-contact communication terminal 102 (NFC terminal) as a terminal part and a non-contact power supply terminal 103 (WLC terminal, WLC: WireLess Charge) as a third terminal part.
磁性体１０は、例えば一体のフェライト焼成物であって磁気シールドとして作用し、コアとして機能する凸部１１を中央部に有する。すなわち、凸部１１は、第１の巻線部２０及び第２の巻線部３０の内側において第１の巻線部２０及び第２の巻線部３０の配置面から立ち上がる。なお、凸部１１は、磁性体１０の一部であってもよいし磁性体１０とは別体であってもよい。 The magnetic body 10 is, for example, an integral ferrite fired product, and acts as a magnetic shield, and has a convex portion 11 that functions as a core in the central portion. That is, the convex portion 11 rises from the arrangement surface of the first winding portion 20 and the second winding portion 30 inside the first winding portion 20 and the second winding portion 30. The convex portion 11 may be a part of the magnetic body 10 or may be a separate body from the magnetic body 10.
第１の巻線部２０及び第２の巻線部３０は、例えばエナメル線等の絶縁被覆線を、それぞれ１本分の線径の厚みとなるように磁性体１０の一方の面上で薄く平面的に周回させたものである。それぞれの周回数は必要なインダクタンス等に応じて適宜設定される。第１の巻線部２０が第２の巻線部３０の外側となる位置関係であり、両者は実質的に同心配置かつ上方から見て実質的に角形形状である。なお、第１の巻線部２０及び第２の巻線部３０は共に自動巻線機により作成可能である。 The first winding portion 20 and the second winding portion 30 are made of, for example, thin insulation coating wires such as enamel wires on one surface of the magnetic body 10 so as to have a thickness corresponding to one wire diameter. It was made to circulate in a plane. The number of turns of each is appropriately set according to the required inductance. The first winding portion 20 is positioned outside the second winding portion 30, and both are substantially concentrically arranged and have a substantially square shape when viewed from above. Both the first winding part 20 and the second winding part 30 can be created by an automatic winding machine.
第１の巻線部２０の両端は、第１の引出線２０ａ,２０ｂによってそれぞれ共通端子１０１及び非接触通信用端子１０２に引き出されて電気的に接続される。第２の巻線部３０の両端は、第２の引出線３０ａ,３０ｂによってそれぞれ非接触通信用端子１０２及び非接触給電用端子１０３に引き出されて電気的に接続される。なお、第１の引出線２０ｂ及び第２の引出線３０ａ,３０ｂのうち巻線部を内側から外側に跨ぐ部分には、例えばジャンパー線を用いる。非接触伝送デバイス１において、第１の巻線部２０は、非接触通信用コイル（非接触で「信号」を伝送するためのコイル）として利用される。第１の巻線部２０及び第２の巻線部３０は、合わせて非接触給電用コイル（非接触で「電力」を伝送するためのコイル）として利用される。すなわち、非接触伝送デバイス１は、リーダ・ライタ（不図示）との非接触通信時は、取付け先の小型モバイル機器（不図示）との間で共通端子１０１及び非接触通信用端子１０２を介して信号の送受信が可能であるとともに、充電器からの非接触充電時は、共通端子１０１及び非接触給電用端子１０３を介して小型モバイル機器のバッテリに給電可能である。 Both ends of the first winding portion 20 are drawn out and electrically connected to the common terminal 101 and the non-contact communication terminal 102 by the first lead wires 20a and 20b, respectively. Both ends of the second winding portion 30 are drawn out and electrically connected to the non-contact communication terminal 102 and the non-contact power supply terminal 103 by the second lead wires 30a and 30b, respectively. For example, a jumper wire is used for a portion of the first lead wire 20b and the second lead wires 30a and 30b that straddles the winding portion from the inside to the outside. In the non-contact transmission device 1, the first winding portion 20 is used as a non-contact communication coil (a coil for transmitting a “signal” in a non-contact manner). The first winding part 20 and the second winding part 30 are used together as a non-contact power supply coil (a coil for transmitting “power” in a non-contact manner). That is, the non-contact transmission device 1 communicates with a small mobile device (not shown) as an attachment destination via a common terminal 101 and a non-contact communication terminal 102 during non-contact communication with a reader / writer (not shown). Signals can be transmitted and received, and at the time of non-contact charging from the charger, power can be supplied to the battery of the small mobile device via the common terminal 101 and the contactless power supply terminal 103.
本実施の形態の非接触伝送デバイス１によれば、下記の効果を奏することができる。 According to the non-contact transmission device 1 of the present embodiment, the following effects can be achieved.
(1) 第１の巻線部２０を、非接触通信用コイルとして利用するとともに、非接触給電用コイルの巻線の一部としても利用する（換言すれば、巻線数が多く必要な非接触給電用コイルの巻線の一部を比較的巻線数が少ない非接触通信用コイルとして兼用する）ため、非接触通信用コイルと非接触給電用コイルとを相互に独立した別々のコイルにする場合と比較して、巻線に用いられる金属を削減することが可能となる。したがって、省資源化及び低コスト化、軽量化に有利である。 (1) The first winding portion 20 is used as a non-contact communication coil and also as a part of a non-contact power supply coil (in other words, a non-necessary non-wireless winding is required). Because part of the winding of the contact power supply coil is also used as a non-contact communication coil with a relatively small number of windings), the non-contact communication coil and the non-contact power supply coil are separated into separate coils. Compared with the case where it does, it becomes possible to reduce the metal used for a coil | winding. Therefore, it is advantageous for resource saving, cost reduction, and weight reduction.
(2) 非接触通信用コイル（第１の巻線部２０）にＦＰＣ（フレキシブルプリント基板）を使用しないため、ＦＰＣを使用した非接触通信用コイルを用いる場合と比較してコスト安である。もっとも、ＦＰＣを使用したものと比較して非接触通信用コイル自体の厚みは増すが、非接触給電用コイルにはＦＰＣは現実的には使用できない（電流容量不足のため）ことを考えると、第１の巻線部２０及び第２の巻線部３０を合わせて見ればＦＰＣを使用しなくても厚みが増すことはない。したがって、ＦＰＣを使用しなくても非接触伝送デバイス１全体としての厚みが増すという問題は無い。 (2) Since no FPC (flexible printed circuit board) is used for the non-contact communication coil (first winding portion 20), the cost is lower than when a non-contact communication coil using FPC is used. However, the thickness of the non-contact communication coil itself is increased compared to that using the FPC, but considering that the FPC cannot be practically used for the non-contact power supply coil (due to insufficient current capacity), If the first winding portion 20 and the second winding portion 30 are viewed together, the thickness does not increase even if the FPC is not used. Therefore, there is no problem that the thickness of the non-contact transmission device 1 as a whole increases without using the FPC.
本実施の形態では、同一の磁性体１０上に第１の巻線部２０及び第２の巻線部３０（すなわち非接触通信用コイル及び非接触給電用コイル）を設けている。非接触通信用コイルの使用周波数は例えば１３.５６ＭＨｚであるのに対し、非接触給電用コイルの使用周波数は例えば５０〜４００ｋＨｚの帯域であることが多い。また、非接触通信用コイルのインダクタンスは例えば１〜４μＨ（１３.５６ＭＨｚ時）とする一方、非接触給電用コイルのインダクタンスは例えば８〜２４μＨ（１００〜３００ＫＨｚ時）とする必要がある（いずれも磁性体１０上に配置時のインダクタンス値）。このように、両コイルは使用周波数や特性が異なるため、磁性体１０は下記の性質を満たすように作製する。すなわち、磁性体１０の、比透磁率の実部をμ'、比透磁率の虚部をμ''、tanδ＝μ''／μ'、磁性体１０の飽和磁束密度をＢｍとしたとき、室温（例えば２５度）かつ１４ＭＨｚ以下の周波数において、
２０≦μ'≦５００、
μ''≦２００、
tanδ≦１.０、かつ
Ｂｍ＞３３０ｍＴ（磁界の強さが１.６ｋＡ／ｍのとき）
とする。但し、Ｂｍの条件のみ直流時の値を示している。
In the present embodiment, the first winding portion 20 and the second winding portion 30 (that is, the non-contact communication coil and the non-contact power supply coil) are provided on the same magnetic body 10. The use frequency of the non-contact communication coil is, for example, 13.56 MHz, while the use frequency of the non-contact power supply coil is, for example, a band of 50 to 400 kHz in many cases. The inductance of the non-contact communication coil is, for example, 1 to 4 μH (at 13.56 MHz), while the inductance of the non-contact power supply coil is, for example, 8 to 24 μH (at 100 to 300 KHz) (both are all). Inductance value when placed on the magnetic body 10). Thus, since both coils have different operating frequencies and characteristics, the magnetic body 10 is manufactured to satisfy the following properties. That is, when the real part of the relative permeability of the magnetic body 10 is μ ′, the imaginary part of the relative permeability is μ ″, tan δ = μ ″ / μ ′, and the saturation magnetic flux density of the magnetic body 10 is Bm, At room temperature (for example, 25 degrees) and a frequency of 14 MHz or less,
20 ≦ μ ′ ≦ 500,
μ '' ≦ 200,
tan δ ≦ 1.0 and Bm> 330 mT (when magnetic field strength is 1.6 kA / m)
And However, only the condition of Bm shows the value at the time of direct current.
上記条件のうち、２０≦μ'は、充電器側あるいはリーダ・ライタ側と電磁誘導により電力あるいは信号をやりとりするために必要な透磁率の条件である。μ'≦５００は、μ'が５００を超えてくると磁気損失項であるμ''が大きくなるため、主にＮＦＣのために設定した条件である。μ''≦２００は、μ''が２００を超えてくるとＮＦＣの通信距離が短くなるため、必要な通信距離を確保するために設定した条件である。μ''が小さいほど、リーダ・ライタから離しても通信が可能となる。tanδ≦１.０は、電磁誘導による通信効率と磁気損失とのバランスを考慮して主にＮＦＣのために設定した条件である。Ｂｍ＞３３０ｍＴは、非接触給電用コイルに流れる比較的大きな電流によっても磁気飽和しないようにするために、主に非接触給電のために設定した条件である。 Among the above conditions, 20 ≦ μ ′ is a condition of magnetic permeability necessary for exchanging electric power or signals with the charger side or the reader / writer side by electromagnetic induction. μ ′ ≦ 500 is a condition set mainly for NFC because μ ″, which is a magnetic loss term, increases when μ ′ exceeds 500. μ ″ ≦ 200 is a condition set to ensure a necessary communication distance because the communication distance of NFC becomes shorter when μ ″ exceeds 200. As μ ″ is smaller, communication is possible even if it is separated from the reader / writer. tan δ ≦ 1.0 is a condition set mainly for NFC in consideration of the balance between communication efficiency by electromagnetic induction and magnetic loss. Bm> 330 mT is a condition set mainly for non-contact power feeding so as not to be magnetically saturated even by a relatively large current flowing in the non-contact power feeding coil.
これらの条件を満たすことにより、磁性体１０は、電力系と信号系の双方に対応できる磁気シールドとなる。すなわち、磁性体１０が上記の条件を満たすものであるため、同一の磁性体１０で非接触通信用コイル及び非接触給電用コイルに対して効果的に磁気シールドを行うことができる。そして、そのような磁性体１０上に非接触通信用コイル及び非接触給電用コイルを一体的に設けて一体化コイルユニットとしたことで、省スペース化を図ることができ、例えば小型モバイル機器への搭載に有利である。すなわち、既に組み込まれていることの多いＮＦＣに加え、小型モバイル機器に非接触給電機能を搭載することが小型化により容易となる。 By satisfying these conditions, the magnetic body 10 becomes a magnetic shield that can handle both the power system and the signal system. That is, since the magnetic body 10 satisfies the above conditions, the same magnetic body 10 can effectively perform magnetic shielding on the non-contact communication coil and the non-contact power supply coil. Then, by providing a non-contact communication coil and a non-contact power supply coil integrally on such a magnetic body 10 to form an integrated coil unit, it is possible to save space, for example, to a small mobile device. It is advantageous for mounting. In other words, in addition to NFC that is already often incorporated, it is easy to mount a non-contact power feeding function in a small mobile device due to downsizing.
図５は、本発明の実施の形態２に係る非接触伝送デバイス２の平面図である。図６は、非接触伝送デバイス２の模式的配線図（（Ａ）はスイッチ１０５オフ状態、（Ｂ）はスイッチ１０５オン状態）である。図７は、非接触伝送デバイス２の等価回路図である。なお、図６及び図７において、第１の巻線部２０を点線で示している。本実施の形態は、実施の形態１と比較して、第２の引出線３０ａの途中すなわち非接触通信用端子１０２と第２の巻線部３０の一端との間にスイッチ１０５が設けられている点で相違し、その他の点は同様である。スイッチ１０５は、例えばＦＥＴ等のトランジスタからなる電子スイッチである。非接触通信時はスイッチ１０５をオフ、非接触給電時はスイッチ１０５をオンとする。スイッチ１０５を設けたことにより、非接触通信時に第１の巻線部２０から第２の巻線部３０に電流が流出することをより確実に防止することができる。 FIG. 5 is a plan view of the contactless transmission device 2 according to Embodiment 2 of the present invention. FIG. 6 is a schematic wiring diagram of the non-contact transmission device 2 ((A) is a switch 105 OFF state, (B) is a switch 105 ON state). FIG. 7 is an equivalent circuit diagram of the contactless transmission device 2. 6 and 7, the first winding portion 20 is indicated by a dotted line. In the present embodiment, a switch 105 is provided in the middle of the second lead wire 30 a, that is, between the contactless communication terminal 102 and one end of the second winding portion 30, as compared with the first embodiment. The other points are the same. The switch 105 is an electronic switch made of a transistor such as an FET. The switch 105 is turned off during non-contact communication, and the switch 105 is turned on during non-contact power feeding. By providing the switch 105, it is possible to more reliably prevent current from flowing from the first winding portion 20 to the second winding portion 30 during non-contact communication.
図８は、本発明の実施の形態３に係る非接触伝送デバイス３の正断面図である。本実施の形態は、実施の形態１と比較して、磁性体１０が第１の巻線部２０と第２の巻線部３０との間のリング状の領域に突起部１２を有する点で相違し、その他の点は同様である。突起部１２は、凸部１０と略同一高さである。なお、突起部１２は、前記リング状の領域を１周する連続したリング状突起であってもよいし、複数の突起がリング状に配列されたものであってもよい。突起部１２を設けた理由は次のとおりである。すなわち、非接触伝送デバイス３で非接触通信を行う場合、第２の巻線部３０は非接触通信と無関係な導体部であり、第２の巻線部３０による電磁波の干渉により非接触通信の通信距離が短くなるという問題がある。そこで、突起部１２を設けると、非接触通信時の第２の巻線部３０による干渉を低減でき、突起部１２を設けない場合と比較して非接触通信の通信距離を長くすることができる。 FIG. 8 is a front sectional view of the non-contact transmission device 3 according to Embodiment 3 of the present invention. The present embodiment is different from the first embodiment in that the magnetic body 10 has a protrusion 12 in a ring-shaped region between the first winding portion 20 and the second winding portion 30. It is different and the other points are the same. The protrusion 12 is substantially the same height as the protrusion 10. The protrusion 12 may be a continuous ring-shaped protrusion that goes around the ring-shaped region, or a plurality of protrusions arranged in a ring shape. The reason why the protrusion 12 is provided is as follows. That is, when non-contact communication is performed by the non-contact transmission device 3, the second winding part 30 is a conductor part unrelated to non-contact communication, and non-contact communication is performed by interference of electromagnetic waves by the second winding part 30. There is a problem that the communication distance is shortened. Therefore, when the protrusion 12 is provided, interference by the second winding part 30 at the time of non-contact communication can be reduced, and the communication distance of non-contact communication can be increased compared to the case where the protrusion 12 is not provided. .
以下、非接触伝送デバイス及びバッテリを一体化したバッテリユニットの実施の形態について説明する。 Hereinafter, an embodiment of a battery unit in which a non-contact transmission device and a battery are integrated will be described.
図９（Ａ）は、本発明の実施の形態４に係るバッテリユニット５を小型モバイル機器本体８に取り付ける場合の模式的分解図である。図９（Ｂ）は、比較例であって、ＮＦＣと非接触給電の各コイルを別々にして携帯電話に搭載する場合の模式的分解図である。なお、小型モバイル機器は、図示の例では携帯電話であるが、スマートフォンやデジタルカメラ、携帯ゲーム機、携帯音楽プレイヤ等の小型モバイル機器であってもよい。 FIG. 9A is a schematic exploded view when battery unit 5 according to Embodiment 4 of the present invention is attached to small mobile device body 8. FIG. 9B is a comparative example, and is a schematic exploded view when NFC and non-contact power feeding coils are separately mounted on a mobile phone. The small mobile device is a mobile phone in the illustrated example, but may be a small mobile device such as a smartphone, a digital camera, a portable game machine, or a portable music player.
図９（Ａ）に示すように、バッテリユニット５は、小型モバイル機器のバッテリ７の表面（小型モバイル機器本体８とは反対側の面）に、非接触伝送デバイス６を接着ないし粘着により一体化したものである。非接触伝送デバイス６とバッテリ７は当初から一体に形成されてもよい。非接触伝送デバイス６は、実施の形態１から３のいずれかで説明したものを用いる。非接触伝送デバイス６の磁性体１０（図１等）は、コイル搭載面と反対側の面がバッテリ７側になる配置である。２次電池であるバッテリ７は、アルミ等の金属ケーシングで表面が覆われている。バッテリユニット５は、小型モバイル機器本体８に取り付けられた状態でリッド９（バッテリケース）によって覆われる。リッド９は、小型モバイル機器本体８に対して着脱自在に取り付けられる。 As shown in FIG. 9A, in the battery unit 5, the non-contact transmission device 6 is integrated by adhesion or adhesion to the surface of the battery 7 of the small mobile device (the surface opposite to the small mobile device main body 8). It is a thing. The contactless transmission device 6 and the battery 7 may be integrally formed from the beginning. As the non-contact transmission device 6, the one described in any of the first to third embodiments is used. The magnetic body 10 (FIG. 1 etc.) of the non-contact transmission device 6 is arranged such that the surface opposite to the coil mounting surface is the battery 7 side. The surface of the battery 7 as a secondary battery is covered with a metal casing such as aluminum. The battery unit 5 is covered with a lid 9 (battery case) while being attached to the small mobile device main body 8. The lid 9 is detachably attached to the small mobile device body 8.
非接触伝送デバイス６と小型モバイル機器本体８との電気的接続の方法の例を以下に説明する。なお、非接触伝送デバイス６は、実施の形態１等で説明したように３端子構造（図１等に示す共通端子１０１、非接触通信用端子１０２及び非接触給電用端子１０３の３端子構造）であるが、図１０以降においては便宜上、端子２０１〜２０４を備える４端子構造（図１等に示す共通端子１０１をＮＦＣ用と非接触給電用に２分割し、非接触通信用端子１０２及び非接触給電用端子１０３と合わせて４つの端子２０１〜２０４とした構造）として示す。端子２０１〜２０４の接続先についても同様である。 An example of a method of electrical connection between the contactless transmission device 6 and the small mobile device body 8 will be described below. The non-contact transmission device 6 has a three-terminal structure (a three-terminal structure including the common terminal 101, the non-contact communication terminal 102, and the non-contact power supply terminal 103 shown in FIG. 1) as described in the first embodiment. However, in FIG. 10 and subsequent figures, for convenience, a four-terminal structure including terminals 201 to 204 (the common terminal 101 shown in FIG. 1 and the like is divided into two parts for NFC and non-contact power feeding, and the non-contact communication terminal 102 and The structure is shown as four terminals 201 to 204 including the contact power supply terminal 103. The same applies to the connection destinations of the terminals 201 to 204.
図１０は、非接触伝送デバイス６が小型モバイル機器本体８に直接電気的に接続される場合のバッテリユニット５と小型モバイル機器本体８の概略ブロック図である。非接触伝送デバイス６と小型モバイル機器本体８との電気的接合は、給電及び通信のどちらも小型モバイル機器本体８側に専用端子８０１〜８０４を既存の電源端子８ａとは別に設けて非接触伝送デバイス６の端子２０１〜２０４と直接接合する。給電系は小型モバイル機器本体８内の過充電防止回路８１等を経由してバッテリ７に給電し、信号系は小型モバイル機器本体８内へ信号を伝送してＲＦＩＤ信号処理回路８２にて信号処理を行う。なお、バッテリ７と小型モバイル機器本体８との接続は、既存の電源端子７ａ,８ａの相互接続によって成される。 FIG. 10 is a schematic block diagram of the battery unit 5 and the small mobile device body 8 when the contactless transmission device 6 is directly electrically connected to the small mobile device body 8. The electrical connection between the non-contact transmission device 6 and the small mobile device main body 8 is achieved by providing dedicated terminals 801 to 804 on the small mobile device main body 8 side separately from the existing power supply terminal 8a for both power feeding and communication. Directly joined to the terminals 201 to 204 of the device 6. The power supply system supplies power to the battery 7 via the overcharge prevention circuit 81 and the like in the small mobile device body 8, and the signal system transmits a signal into the small mobile device body 8 and performs signal processing in the RFID signal processing circuit 82. I do. The connection between the battery 7 and the small mobile device body 8 is made by mutual connection of the existing power terminals 7a and 8a.
図１１は、バッテリ７が非接触伝送デバイスの増設に対応している場合のバッテリユニット５と小型モバイル機器本体８の概略ブロック図である。バッテリ７は、非接触伝送デバイス６との接点となる端子７０１〜７０４を有するとともに、小型モバイル機器本体８との接点となる端子７１１〜７１４を既存の電源端子７ａとは別に有する。非接触伝送デバイス６とバッテリ７とを一体化する際に、端子２０１〜２０４と端子７０１〜７０４とを電気的に接続させる。この場合、バッテリユニット５を小型モバイル機器本体８の所定位置に取り付けることで、端子７１１〜７１４が小型モバイル機器本体８側の専用端子８０１〜８０４に接続され、給電及び通信のどちらの電気的接続も完了できる。図１１におけるその他の点は図１０と同様である。 FIG. 11 is a schematic block diagram of the battery unit 5 and the small mobile device main body 8 in the case where the battery 7 supports expansion of a contactless transmission device. The battery 7 has terminals 701 to 704 serving as contact points with the non-contact transmission device 6 and has terminals 711 to 714 serving as contact points with the small mobile device main body 8 separately from the existing power supply terminal 7a. When the contactless transmission device 6 and the battery 7 are integrated, the terminals 201 to 204 and the terminals 701 to 704 are electrically connected. In this case, by attaching the battery unit 5 to a predetermined position of the small mobile device body 8, the terminals 711 to 714 are connected to the dedicated terminals 801 to 804 on the small mobile device body 8 side. Can also be completed. Other points in FIG. 11 are the same as those in FIG.
図１２は、バッテリユニット５が樹脂等のパッケージ５ａに覆われて一体化されている場合のバッテリユニット５と小型モバイル機器本体８の概略ブロック図である。非接触伝送デバイス６の配線はパッケージ５ａの内部にあり、当該配線と導通する接点である端子５０１〜５０４がパッケージ５ａの表面に露出して設けられる。この場合も、バッテリユニット５を小型モバイル機器本体８の所定位置に取り付けることで、端子５０１〜５０４が小型モバイル機器本体８側の専用端子８０１〜８０４に接続され、給電及び通信のどちらの電気的接続も完了できる。図１２におけるその他の点は図１０と同様である。 FIG. 12 is a schematic block diagram of the battery unit 5 and the small mobile device main body 8 when the battery unit 5 is covered and integrated with a package 5a made of resin or the like. The wiring of the non-contact transmission device 6 is inside the package 5a, and terminals 501 to 504, which are contact points that are connected to the wiring, are exposed on the surface of the package 5a. Also in this case, by attaching the battery unit 5 to a predetermined position of the small mobile device body 8, the terminals 501 to 504 are connected to the dedicated terminals 801 to 804 on the small mobile device body 8 side. Connection can also be completed. Other points in FIG. 12 are the same as those in FIG.
図１３は、バッテリユニット５に過充電防止回路５２を内蔵した場合のバッテリユニット５と小型モバイル機器本体８の概略ブロック図である。これによれば、小型モバイル機器本体８を経由せずに非接触伝送デバイス６からバッテリ７に給電可能である。このため、図１２に示す給電用の端子５０３,５０４,８０３,８０４は不要である。図１３におけるその他の点は図１２と同様である。 FIG. 13 is a schematic block diagram of the battery unit 5 and the small mobile device body 8 when the overcharge prevention circuit 52 is built in the battery unit 5. According to this, power can be supplied from the non-contact transmission device 6 to the battery 7 without going through the small mobile device main body 8. Therefore, the power feeding terminals 503, 504, 803, and 804 shown in FIG. 12 are not necessary. Other points in FIG. 13 are the same as those in FIG.
図１４は、信号混合分離回路を用いる場合のバッテリユニット５と小型モバイル機器本体８の概略ブロック図である。信号混合分離回路５３,８３は、バッテリユニット５及び小型モバイル機器本体８にそれぞれ設けられる。信号混合分離回路５３,８３を用いることにより電源系の接続と信号系の接続を共用すれば、既存の電源端子に加えての端子の増設は必要ない。すなわち、図１３における通信用の端子５０１,５０２,８０１,８０２は不要である。図１４におけるその他の点は図１３と同様である。 FIG. 14 is a schematic block diagram of the battery unit 5 and the small mobile device body 8 when the signal mixing / separating circuit is used. The signal mixing / separation circuits 53 and 83 are provided in the battery unit 5 and the small mobile device main body 8, respectively. If the power supply system connection and the signal system connection are shared by using the signal mixing / separation circuits 53 and 83, it is not necessary to add terminals in addition to the existing power supply terminals. That is, the communication terminals 501, 502, 801, and 802 in FIG. 13 are unnecessary. Other points in FIG. 14 are the same as in FIG.
以下、非接触伝送デバイスをバッテリケース用のリッド９の背面（内側の面）に一体化したバッテリリッドユニットの実施の形態について説明する。 Hereinafter, an embodiment of a battery lid unit in which the non-contact transmission device is integrated with the back surface (inner surface) of the battery case lid 9 will be described.
図１５は、本発明の実施の形態５に係るバッテリリッドユニットと小型モバイル機器本体８の概略ブロック図である。非接触伝送デバイス６は、実施の形態１から３のいずれかで説明したものを用いる。通常のリッドには接点が無いので、専用の端子９０１〜９０４を新たに設け、小型モバイル機器本体８側の専用端子８０１〜８０４に接続する。図１５におけるその他の点は、図１０と同様である。 FIG. 15 is a schematic block diagram of the battery lid unit and the small mobile device body 8 according to Embodiment 5 of the present invention. As the non-contact transmission device 6, the one described in any of the first to third embodiments is used. Since normal lids do not have contacts, dedicated terminals 901 to 904 are newly provided and connected to dedicated terminals 801 to 804 on the small mobile device body 8 side. Other points in FIG. 15 are the same as those in FIG.
以上、実施の形態を例に本発明を説明したが、実施の形態の各構成要素や各処理プロセスには請求項に記載の範囲で種々の変形が可能であることは当業者に理解されるところである。以下、変形例について触れる。 The present invention has been described above by taking the embodiment as an example. However, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, modifications will be described.
非接触伝送デバイスにおいて、磁性体１０は、フェライト焼成物に替えて、金属圧粉磁心であってもよい。磁性体１０の凸部１１（コイルコアとして作用）は無くてもよい。第１の巻線部２０及び第２の巻線部３０は同心配置に限定されない。第１の巻線部２０及び第２の巻線部３０は角形形状であるとスペース効率がよいが、円形や長円形を始め、その他の形状としてもよい。 In the non-contact transmission device, the magnetic body 10 may be a metal dust core instead of the sintered ferrite product. The convex portion 11 (acting as a coil core) of the magnetic body 10 may be omitted. The first winding part 20 and the second winding part 30 are not limited to the concentric arrangement. The first winding portion 20 and the second winding portion 30 have a square shape and space efficiency is good. However, other shapes such as a circular shape and an oval shape may be used.
１,２ 非接触伝送デバイス
５ バッテリユニット
７ バッテリ
８ 小型モバイル機器本体
９ リッド
１０ 磁性体
１１ 凸部
２０ 第１の巻線部
３０ 第２の巻線部
１０１ 共通端子
１０２ 非接触通信用端子
１０３ 非接触給電用端子
1, 2 Non-contact transmission device 5 Battery unit 7 Battery 8 Small mobile device main body 9 Lid 10 Magnetic body 11 Protruding part 20 First winding part 30 Second winding part 101 Common terminal 102 Non-contact communication terminal 103 Non Contact power supply terminal
Claims (10)
前記コイルは、第１及び第２の巻線部と、第１から第３の端子部とを有し、
前記第１の巻線部の両端がそれぞれ前記第１及び第２の端子部に引き出され、
前記第２の巻線部の両端がそれぞれ前記第２及び第３の端子部に引き出され、
前記第１の巻線部を非接触通信用コイルとして利用し、前記第１及び第２の巻線部を合わせて非接触給電用コイルとして利用する、非接触伝送デバイス。 A flat magnetic body, and a coil provided on one surface of the magnetic body,
The coil has first and second winding portions, and first to third terminal portions,
Both ends of the first winding portion are drawn out to the first and second terminal portions, respectively.
Both ends of the second winding part are drawn out to the second and third terminal parts, respectively.
A contactless transmission device that uses the first winding portion as a contactless communication coil, and uses the first and second winding portions together as a contactless power supply coil.
２０≦μ'≦５００、
μ''≦２００、かつ
tanδ≦１.０
であり、さらに、
前記磁性体の飽和磁束密度をＢｍとしたとき、室温かつ磁界の強さ１.６ｋＡ／ｍにおいて、Ｂｍ＞３３０ｍＴである、請求項１から９のいずれか一項に記載の非接触伝送デバイス。 Said magnetic body, the real part of the relative permeability mu r mu ', the imaginary part of relative permeability μ r μ'', when the tanδ = μ''/μ' , at frequencies below room temperature and 14 MHz,
20 ≦ μ ′ ≦ 500,
μ '' ≦ 200, and
tanδ ≦ 1.0
And, moreover,
10. The non-contact transmission device according to claim 1, wherein Bm> 330 mT at room temperature and a magnetic field strength of 1.6 kA / m, where Bm is a saturation magnetic flux density of the magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011234272A JP2013093429A (en) | 2011-10-25 | 2011-10-25 | Non-contact transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011234272A JP2013093429A (en) | 2011-10-25 | 2011-10-25 | Non-contact transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2013093429A true JP2013093429A (en) | 2013-05-16 |
Family
ID=48616339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011234272A Pending JP2013093429A (en) | 2011-10-25 | 2011-10-25 | Non-contact transmission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2013093429A (en) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015100232A (en) * | 2013-11-20 | 2015-05-28 | 日新電機株式会社 | Non-contact power supply system |
| WO2015147133A1 (en) * | 2014-03-28 | 2015-10-01 | 株式会社村田製作所 | Antenna device and electronic apparatus |
| CN105405578A (en) * | 2014-09-04 | 2016-03-16 | 三星电机株式会社 | Case and apparatus including the same |
| WO2017027326A1 (en) | 2015-08-07 | 2017-02-16 | Nucurrent, Inc. | Single layer multi mode antenna for wireless power transmission using magnetic field coupling |
| WO2017122499A1 (en) * | 2016-01-13 | 2017-07-20 | 株式会社村田製作所 | Antenna device and electronic device |
| WO2017138296A1 (en) * | 2016-02-10 | 2017-08-17 | 株式会社村田製作所 | Antenna device and electronic apparatus |
| CN108462261A (en) * | 2018-02-09 | 2018-08-28 | 宁波微鹅电子科技有限公司 | A kind of coil module, electric energy transmitting circuit and electric energy receiving circuit |
| CN109036818A (en) * | 2018-07-25 | 2018-12-18 | 清华大学 | A kind of Wireless charging coil for multi-rotor unmanned aerial vehicle |
| KR20190033996A (en) * | 2017-09-22 | 2019-04-01 | 엘지이노텍 주식회사 | Wireless communication enabled wireless charging device |
| KR20190046250A (en) * | 2017-10-25 | 2019-05-07 | 삼성전자주식회사 | Coil device for wireless power transfer |
| CN109849698A (en) * | 2019-02-27 | 2019-06-07 | 哈尔滨工业大学 | A kind of five phase wireless charging magnetic couplings applied to rail traffic |
| US10432033B2 (en) | 2016-12-09 | 2019-10-01 | Nucurrent, Inc. | Electronic device having a sidewall configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US10636563B2 (en) | 2015-08-07 | 2020-04-28 | Nucurrent, Inc. | Method of fabricating a single structure multi mode antenna for wireless power transmission using magnetic field coupling |
| US10658847B2 (en) | 2015-08-07 | 2020-05-19 | Nucurrent, Inc. | Method of providing a single structure multi mode antenna for wireless power transmission using magnetic field coupling |
| US10879705B2 (en) | 2016-08-26 | 2020-12-29 | Nucurrent, Inc. | Wireless connector receiver module with an electrical connector |
| US10903688B2 (en) | 2017-02-13 | 2021-01-26 | Nucurrent, Inc. | Wireless electrical energy transmission system with repeater |
| US10985465B2 (en) | 2015-08-19 | 2021-04-20 | Nucurrent, Inc. | Multi-mode wireless antenna configurations |
| US11056922B1 (en) | 2020-01-03 | 2021-07-06 | Nucurrent, Inc. | Wireless power transfer system for simultaneous transfer to multiple devices |
| US11152151B2 (en) | 2017-05-26 | 2021-10-19 | Nucurrent, Inc. | Crossover coil structure for wireless transmission |
| US11205849B2 (en) | 2015-08-07 | 2021-12-21 | Nucurrent, Inc. | Multi-coil antenna structure with tunable inductance |
| US11227712B2 (en) | 2019-07-19 | 2022-01-18 | Nucurrent, Inc. | Preemptive thermal mitigation for wireless power systems |
| US11271430B2 (en) | 2019-07-19 | 2022-03-08 | Nucurrent, Inc. | Wireless power transfer system with extended wireless charging range |
| US11283303B2 (en) | 2020-07-24 | 2022-03-22 | Nucurrent, Inc. | Area-apportioned wireless power antenna for maximized charging volume |
| US11336003B2 (en) | 2009-03-09 | 2022-05-17 | Nucurrent, Inc. | Multi-layer, multi-turn inductor structure for wireless transfer of power |
| US20220200342A1 (en) | 2020-12-22 | 2022-06-23 | Nucurrent, Inc. | Ruggedized communication for wireless power systems in multi-device environments |
| US11695302B2 (en) | 2021-02-01 | 2023-07-04 | Nucurrent, Inc. | Segmented shielding for wide area wireless power transmitter |
| US11831174B2 (en) | 2022-03-01 | 2023-11-28 | Nucurrent, Inc. | Cross talk and interference mitigation in dual wireless power transmitter |
| US11876386B2 (en) | 2020-12-22 | 2024-01-16 | Nucurrent, Inc. | Detection of foreign objects in large charging volume applications |
| US11955809B2 (en) | 2015-08-07 | 2024-04-09 | Nucurrent, Inc. | Single structure multi mode antenna for wireless power transmission incorporating a selection circuit |
| US11996706B2 (en) | 2023-06-29 | 2024-05-28 | Nucurrent, Inc. | Segmented shielding for wide area wireless power transmitter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006013976A (en) * | 2004-06-28 | 2006-01-12 | Tdk Corp | Soft magnetic substance and antenna unit using same |
| JP2012070529A (en) * | 2010-09-24 | 2012-04-05 | Nec Tokin Corp | Non-contact power transmission and communication system |
| JP2013084915A (en) * | 2011-10-12 | 2013-05-09 | Tdk Taiwan Corp | Induction module commonly used for short-range wireless communication and wireless charging |
-
2011
- 2011-10-25 JP JP2011234272A patent/JP2013093429A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006013976A (en) * | 2004-06-28 | 2006-01-12 | Tdk Corp | Soft magnetic substance and antenna unit using same |
| JP2012070529A (en) * | 2010-09-24 | 2012-04-05 | Nec Tokin Corp | Non-contact power transmission and communication system |
| JP2013084915A (en) * | 2011-10-12 | 2013-05-09 | Tdk Taiwan Corp | Induction module commonly used for short-range wireless communication and wireless charging |
Cited By (82)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11476566B2 (en) | 2009-03-09 | 2022-10-18 | Nucurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| US11916400B2 (en) | 2009-03-09 | 2024-02-27 | Nucurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| US11336003B2 (en) | 2009-03-09 | 2022-05-17 | Nucurrent, Inc. | Multi-layer, multi-turn inductor structure for wireless transfer of power |
| US11335999B2 (en) | 2009-03-09 | 2022-05-17 | Nucurrent, Inc. | Device having a multi-layer-multi-turn antenna with frequency |
| JP2015100232A (en) * | 2013-11-20 | 2015-05-28 | 日新電機株式会社 | Non-contact power supply system |
| WO2015147133A1 (en) * | 2014-03-28 | 2015-10-01 | 株式会社村田製作所 | Antenna device and electronic apparatus |
| US9941576B2 (en) | 2014-03-28 | 2018-04-10 | Murata Manufacturing Co., Ltd. | Antenna device and electronic device |
| CN105405578A (en) * | 2014-09-04 | 2016-03-16 | 三星电机株式会社 | Case and apparatus including the same |
| US11205848B2 (en) | 2015-08-07 | 2021-12-21 | Nucurrent, Inc. | Method of providing a single structure multi mode antenna having a unitary body construction for wireless power transmission using magnetic field coupling |
| WO2017027326A1 (en) | 2015-08-07 | 2017-02-16 | Nucurrent, Inc. | Single layer multi mode antenna for wireless power transmission using magnetic field coupling |
| JP2018533238A (en) * | 2015-08-07 | 2018-11-08 | ニューカレント インコーポレイテッドＮｕＣｕｒｒｅｎｔ， Ｉｎｃ． | Single-layer multimode antenna for wireless power transfer using magnetic field coupling |
| US11955809B2 (en) | 2015-08-07 | 2024-04-09 | Nucurrent, Inc. | Single structure multi mode antenna for wireless power transmission incorporating a selection circuit |
| US11769629B2 (en) | 2015-08-07 | 2023-09-26 | Nucurrent, Inc. | Device having a multimode antenna with variable width of conductive wire |
| US11025070B2 (en) | 2015-08-07 | 2021-06-01 | Nucurrent, Inc. | Device having a multimode antenna with at least one conductive wire with a plurality of turns |
| US11469598B2 (en) | 2015-08-07 | 2022-10-11 | Nucurrent, Inc. | Device having a multimode antenna with variable width of conductive wire |
| US11205849B2 (en) | 2015-08-07 | 2021-12-21 | Nucurrent, Inc. | Multi-coil antenna structure with tunable inductance |
| US11196266B2 (en) | 2015-08-07 | 2021-12-07 | Nucurrent, Inc. | Device having a multimode antenna with conductive wire width |
| JP2022008313A (en) * | 2015-08-07 | 2022-01-13 | ニューカレント インコーポレイテッド | Single layer multi-mode antenna for power transmission using magnetic field coupling |
| US10636563B2 (en) | 2015-08-07 | 2020-04-28 | Nucurrent, Inc. | Method of fabricating a single structure multi mode antenna for wireless power transmission using magnetic field coupling |
| US10658847B2 (en) | 2015-08-07 | 2020-05-19 | Nucurrent, Inc. | Method of providing a single structure multi mode antenna for wireless power transmission using magnetic field coupling |
| US11670856B2 (en) | 2015-08-19 | 2023-06-06 | Nucurrent, Inc. | Multi-mode wireless antenna configurations |
| US11316271B2 (en) | 2015-08-19 | 2022-04-26 | Nucurrent, Inc. | Multi-mode wireless antenna configurations |
| US10985465B2 (en) | 2015-08-19 | 2021-04-20 | Nucurrent, Inc. | Multi-mode wireless antenna configurations |
| US10700413B2 (en) | 2016-01-13 | 2020-06-30 | Murata Manufacturing Co., Ltd. | Antenna device and electronic apparatus |
| JPWO2017122499A1 (en) * | 2016-01-13 | 2018-01-18 | 株式会社村田製作所 | ANTENNA DEVICE AND ELECTRONIC DEVICE |
| WO2017122499A1 (en) * | 2016-01-13 | 2017-07-20 | 株式会社村田製作所 | Antenna device and electronic device |
| US10707573B2 (en) | 2016-02-10 | 2020-07-07 | Murata Manufacturing Co., Ltd. | Antenna device and electronic apparatus |
| WO2017138296A1 (en) * | 2016-02-10 | 2017-08-17 | 株式会社村田製作所 | Antenna device and electronic apparatus |
| JPWO2017138296A1 (en) * | 2016-02-10 | 2018-08-09 | 株式会社村田製作所 | ANTENNA DEVICE AND ELECTRONIC DEVICE |
| US11011915B2 (en) | 2016-08-26 | 2021-05-18 | Nucurrent, Inc. | Method of making a wireless connector transmitter module |
| US10879704B2 (en) | 2016-08-26 | 2020-12-29 | Nucurrent, Inc. | Wireless connector receiver module |
| US10916950B2 (en) | 2016-08-26 | 2021-02-09 | Nucurrent, Inc. | Method of making a wireless connector receiver module |
| US10931118B2 (en) | 2016-08-26 | 2021-02-23 | Nucurrent, Inc. | Wireless connector transmitter module with an electrical connector |
| US10938220B2 (en) | 2016-08-26 | 2021-03-02 | Nucurrent, Inc. | Wireless connector system |
| US10879705B2 (en) | 2016-08-26 | 2020-12-29 | Nucurrent, Inc. | Wireless connector receiver module with an electrical connector |
| US10897140B2 (en) | 2016-08-26 | 2021-01-19 | Nucurrent, Inc. | Method of operating a wireless connector system |
| US10903660B2 (en) | 2016-08-26 | 2021-01-26 | Nucurrent, Inc. | Wireless connector system circuit |
| US10886751B2 (en) | 2016-08-26 | 2021-01-05 | Nucurrent, Inc. | Wireless connector transmitter module |
| US10892646B2 (en) | 2016-12-09 | 2021-01-12 | Nucurrent, Inc. | Method of fabricating an antenna having a substrate configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US10432031B2 (en) | 2016-12-09 | 2019-10-01 | Nucurrent, Inc. | Antenna having a substrate configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US11418063B2 (en) | 2016-12-09 | 2022-08-16 | Nucurrent, Inc. | Method of fabricating an antenna having a substrate configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US10432032B2 (en) | 2016-12-09 | 2019-10-01 | Nucurrent, Inc. | Wireless system having a substrate configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US10432033B2 (en) | 2016-12-09 | 2019-10-01 | Nucurrent, Inc. | Electronic device having a sidewall configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US10868444B2 (en) | 2016-12-09 | 2020-12-15 | Nucurrent, Inc. | Method of operating a system having a substrate configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US11764614B2 (en) | 2016-12-09 | 2023-09-19 | Nucurrent, Inc. | Method of fabricating an antenna having a substrate configured to facilitate through-metal energy transfer via near field magnetic coupling |
| US11177695B2 (en) | 2017-02-13 | 2021-11-16 | Nucurrent, Inc. | Transmitting base with magnetic shielding and flexible transmitting antenna |
| US11431200B2 (en) | 2017-02-13 | 2022-08-30 | Nucurrent, Inc. | Method of operating a wireless electrical energy transmission system |
| US11502547B2 (en) | 2017-02-13 | 2022-11-15 | Nucurrent, Inc. | Wireless electrical energy transmission system with transmitting antenna having magnetic field shielding panes |
| US11264837B2 (en) | 2017-02-13 | 2022-03-01 | Nucurrent, Inc. | Transmitting base with antenna having magnetic shielding panes |
| US11223234B2 (en) | 2017-02-13 | 2022-01-11 | Nucurrent, Inc. | Method of operating a wireless electrical energy transmission base |
| US10903688B2 (en) | 2017-02-13 | 2021-01-26 | Nucurrent, Inc. | Wireless electrical energy transmission system with repeater |
| US10958105B2 (en) | 2017-02-13 | 2021-03-23 | Nucurrent, Inc. | Transmitting base with repeater |
| US11705760B2 (en) | 2017-02-13 | 2023-07-18 | Nucurrent, Inc. | Method of operating a wireless electrical energy transmission system |
| US11223235B2 (en) | 2017-02-13 | 2022-01-11 | Nucurrent, Inc. | Wireless electrical energy transmission system |
| US11277029B2 (en) | 2017-05-26 | 2022-03-15 | Nucurrent, Inc. | Multi coil array for wireless energy transfer with flexible device orientation |
| US11282638B2 (en) | 2017-05-26 | 2022-03-22 | Nucurrent, Inc. | Inductor coil structures to influence wireless transmission performance |
| US11152151B2 (en) | 2017-05-26 | 2021-10-19 | Nucurrent, Inc. | Crossover coil structure for wireless transmission |
| US11283295B2 (en) | 2017-05-26 | 2022-03-22 | Nucurrent, Inc. | Device orientation independent wireless transmission system |
| US11283296B2 (en) | 2017-05-26 | 2022-03-22 | Nucurrent, Inc. | Crossover inductor coil and assembly for wireless transmission |
| US11652511B2 (en) | 2017-05-26 | 2023-05-16 | Nucurrent, Inc. | Inductor coil structures to influence wireless transmission performance |
| US11277028B2 (en) | 2017-05-26 | 2022-03-15 | Nucurrent, Inc. | Wireless electrical energy transmission system for flexible device orientation |
| KR20190033996A (en) * | 2017-09-22 | 2019-04-01 | 엘지이노텍 주식회사 | Wireless communication enabled wireless charging device |
| KR102454875B1 (en) * | 2017-09-22 | 2022-10-17 | 엘지이노텍 주식회사 | Wireless communication enabled wireless charging device |
| KR20190046250A (en) * | 2017-10-25 | 2019-05-07 | 삼성전자주식회사 | Coil device for wireless power transfer |
| KR102484416B1 (en) | 2017-10-25 | 2023-01-04 | 삼성전자주식회사 | Coil device for wireless power transfer |
| CN108462261A (en) * | 2018-02-09 | 2018-08-28 | 宁波微鹅电子科技有限公司 | A kind of coil module, electric energy transmitting circuit and electric energy receiving circuit |
| CN109036818A (en) * | 2018-07-25 | 2018-12-18 | 清华大学 | A kind of Wireless charging coil for multi-rotor unmanned aerial vehicle |
| CN109849698B (en) * | 2019-02-27 | 2020-07-14 | 哈尔滨工业大学 | Five-phase wireless charging magnetic coupling mechanism applied to rail transit |
| CN109849698A (en) * | 2019-02-27 | 2019-06-07 | 哈尔滨工业大学 | A kind of five phase wireless charging magnetic couplings applied to rail traffic |
| US11271430B2 (en) | 2019-07-19 | 2022-03-08 | Nucurrent, Inc. | Wireless power transfer system with extended wireless charging range |
| US11227712B2 (en) | 2019-07-19 | 2022-01-18 | Nucurrent, Inc. | Preemptive thermal mitigation for wireless power systems |
| US11756728B2 (en) | 2019-07-19 | 2023-09-12 | Nucurrent, Inc. | Wireless power transfer system with extended wireless charging range |
| US11056922B1 (en) | 2020-01-03 | 2021-07-06 | Nucurrent, Inc. | Wireless power transfer system for simultaneous transfer to multiple devices |
| US11811223B2 (en) | 2020-01-03 | 2023-11-07 | Nucurrent, Inc. | Wireless power transfer system for simultaneous transfer to multiple devices |
| US11658517B2 (en) | 2020-07-24 | 2023-05-23 | Nucurrent, Inc. | Area-apportioned wireless power antenna for maximized charging volume |
| US11283303B2 (en) | 2020-07-24 | 2022-03-22 | Nucurrent, Inc. | Area-apportioned wireless power antenna for maximized charging volume |
| US20220200342A1 (en) | 2020-12-22 | 2022-06-23 | Nucurrent, Inc. | Ruggedized communication for wireless power systems in multi-device environments |
| US11876386B2 (en) | 2020-12-22 | 2024-01-16 | Nucurrent, Inc. | Detection of foreign objects in large charging volume applications |
| US11881716B2 (en) | 2020-12-22 | 2024-01-23 | Nucurrent, Inc. | Ruggedized communication for wireless power systems in multi-device environments |
| US11695302B2 (en) | 2021-02-01 | 2023-07-04 | Nucurrent, Inc. | Segmented shielding for wide area wireless power transmitter |
| US11831174B2 (en) | 2022-03-01 | 2023-11-28 | Nucurrent, Inc. | Cross talk and interference mitigation in dual wireless power transmitter |
| US11996706B2 (en) | 2023-06-29 | 2024-05-28 | Nucurrent, Inc. | Segmented shielding for wide area wireless power transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5549818B2 (en) | Non-contact transmission device, and battery unit and battery lid unit including the same | |
| JP2013093429A (en) | Non-contact transmission device | |
| KR101179398B1 (en) | Contactless power transmission device and electronic device having the same | |
| US10574082B2 (en) | Electronic device including non-contact charging module and battery | |
| EP2518904B1 (en) | Contactless power transmission device | |
| CN105474459B (en) | Receiving antenna and wireless power reception device comprising the receiving antenna | |
| KR101339486B1 (en) | Thin film coil and electronic device having the same | |
| KR101890326B1 (en) | Wireless power transfer module and portable auxiliary battery including the same | |
| TWI717313B (en) | Antenna device and electronic equipment | |
| US9973023B2 (en) | Inductive energy transfer coil structure | |
| US10505257B2 (en) | Antenna device and electronic apparatus | |
| KR101827721B1 (en) | Antenna module for car | |
| US10186875B2 (en) | Coil type unit for wireless power transmission, wireless power transmission device, electronic device and manufacturing method of coil type unit for wireless power transmission | |
| WO2013088912A1 (en) | Antenna device and electronic instrument | |
| US20150061400A1 (en) | Coil type unit for wireless power transmission, wireless power transmission device, electronic device and manufacturing method of coil type unit for wireless power transmission | |
| CN209843948U (en) | Double-coil device with wireless charging and near field communication functions | |
| JP2014036116A (en) | Receiver for non-contact power supply | |
| KR101532052B1 (en) | Antenna patch comprising common terminals for wireless charging and nfc communication | |
| JP2017163676A (en) | Non-contact charging coil assy | |
| KR101546720B1 (en) | Thin film coil, case assembly, non-contact power receiving device, and electronic device having the same | |
| US9761371B2 (en) | Coil type unit for wireless power transmission, wireless power transmission device, electronic device and manufacturing method of coil type unit for wireless power transmission | |
| KR101546718B1 (en) | Thin film coil, case assembly, non-contact power receiving device, and electronic device having the same | |
| KR101546719B1 (en) | Non-contact power receiving device, case assembly, and electronic device having the same | |
| KR20150048695A (en) | Thin film coil, case assembly, non-contact power receiving device, and electronic device having the same | |
| KR101581695B1 (en) | Coil substrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20130605 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140725 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140827 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141023 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20150422 |