JP2005136342A - Contactless rechargeable equipment - Google Patents

Contactless rechargeable equipment Download PDF

Info

Publication number
JP2005136342A
JP2005136342A JP2003373088A JP2003373088A JP2005136342A JP 2005136342 A JP2005136342 A JP 2005136342A JP 2003373088 A JP2003373088 A JP 2003373088A JP 2003373088 A JP2003373088 A JP 2003373088A JP 2005136342 A JP2005136342 A JP 2005136342A
Authority
JP
Japan
Prior art keywords
core
primary coil
base
secondary coil
charger
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.)
Granted
Application number
JP2003373088A
Other languages
Japanese (ja)
Other versions
JP4112474B2 (en
Inventor
Seiichiro Saegusa
征一郎 三枝
Kazuki Nakatani
一樹 中谷
Takayuki Ochi
貴之 大地
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yonezawa Densen Co Ltd
Original Assignee
Yonezawa Densen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yonezawa Densen Co Ltd filed Critical Yonezawa Densen Co Ltd
Priority to JP2003373088A priority Critical patent/JP4112474B2/en
Publication of JP2005136342A publication Critical patent/JP2005136342A/en
Application granted granted Critical
Publication of JP4112474B2 publication Critical patent/JP4112474B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

<P>PROBLEM TO BE SOLVED: To improve the charging efficiency of contactless rechargeable equipment by reducing the leaking magnetic flux from the core of the equipment. <P>SOLUTION: In the contactless rechargeable equipment M, a battery charged by a battery charger 10 and housed in equipment 20 is charged through the electromagnetic induction caused by a primary coil 12 contained in the charger 10 and a secondary coil 22 housed in the equipment 20. The cores 13 and 23 of the primary and secondary coils 12 and 22 are disposed, in a state with both end faces 15 and 25 of the cores 13 and 23 made to face each other. The core 13 of the primary coil 12 is formed in a U-shape by forming legs 17 at both ends of the bar-shaped base 16 of the core 13 in a bent state. In addition, the space between both legs 17 becomes narrower as going farther away from the base 16. The core 23 of the secondary coil 22 is also formed into a U-shape by forming legs 27 at both ends of the bar-shaped base 26 of the core 23 in bent states. In addition, the space between both legs 27 also becomes narrower as going farther away from the base 26. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、携帯電話や電気剃刀機などの機器に内蔵されたバッテリーを、無接点で充電可能な無接点充電式機器およびこれに用いられる充電器に関する。   The present invention relates to a contactless rechargeable device capable of charging a battery built in a device such as a mobile phone or an electric razor without contact, and a charger used therefor.

近年、携帯電話や電気剃刀機、卓上掃除機、リモートコントローラなど、コードレスにした機器（コードレス機器）に内蔵したバッテリーを充電する充電器として、充電器に内蔵した一次コイルと機器に内蔵した二次コイルとを磁気結合した無接点充電式機器が知られている。この種の無接点充電式機器では、充電器と機器を電気的に接続する接点を設けることなく、一次コイルから二次コイルへの電磁誘導により、充電器から機器に電力を供給することができる。   In recent years, as a charger for charging batteries built into cordless devices (cordless devices) such as mobile phones, electric razor machines, desk cleaners, and remote controllers, the primary coil built into the charger and the secondary built into the device A contactless rechargeable device in which a coil is magnetically coupled is known. In this type of contactless rechargeable device, electric power can be supplied from the charger to the device by electromagnetic induction from the primary coil to the secondary coil without providing a contact point for electrically connecting the charger and the device. .

この種の充電器において、一次コイルおよび二次コイルのコア（フェライト磁心などの磁心）としては、例えば、図３、図４に示すような形状及び配置のものが一般に用いられている。
図３、図４において、符号１１０は充電器、符号１１１は充電器１１０の筐体、符号１１２は一次コイル、符号１１３は一次コイルのコア、符号１２０は充電器１１０によって充電される機器、符号１２１は機器１２０の筐体、符号１２２は二次コイル、符号１２３は二次コイルのコアである。ここで、一次コイル１１２のコア１１３としては、Ｕ字形コアが採用されている。また、二次コイル１２２のコア１２３としては、図３の構成においては棒状コアが、図４の構成においてはＵ字形コアが、それぞれ採用されている。
上記の無接点充電式機器では、機器１２０を充電器１１０の上に置くと、コア１１３，１２３の両端部１１４，１２４が互いに近接され、磁路を形成するようになっている。このため、一次コイル１１２と二次コイル１２２とが、コア１１３，１２３を介して磁気結合され、充電を行うことができる。
特開２００３−１８７５８号公報 In this type of charger, as the cores of the primary coil and the secondary coil (magnetic cores such as ferrite cores), for example, those having shapes and arrangements as shown in FIGS. 3 and 4 are generally used.
3 and 4, reference numeral 110 is a charger, reference numeral 111 is a casing of the charger 110, reference numeral 112 is a primary coil, reference numeral 113 is a core of the primary coil, reference numeral 120 is a device charged by the charger 110, reference numeral Reference numeral 121 denotes a casing of the device 120, reference numeral 122 denotes a secondary coil, and reference numeral 123 denotes a core of the secondary coil. Here, a U-shaped core is adopted as the core 113 of the primary coil 112. Further, as the core 123 of the secondary coil 122, a rod-shaped core is employed in the configuration of FIG. 3, and a U-shaped core is employed in the configuration of FIG.
In the contactless rechargeable device described above, when the device 120 is placed on the charger 110, both end portions 114 and 124 of the cores 113 and 123 are brought close to each other to form a magnetic path. For this reason, the primary coil 112 and the secondary coil 122 are magnetically coupled via the cores 113 and 123 and can be charged.
JP 2003-18758 A

上記のような無接点充電式機器では、一次コイル１１２で発生した磁束は、充電器１１０側のコア１１３および機器１２０側のコア１２３を通って二次コイル１２２に達するが、磁束の一部がコア１１３，１２３の外側に拡がって漏れてしまうため、この漏れ磁束によって充電効率が低下してしまうという問題がある。また、この漏れ磁束によって周囲が発熱したり、機器の動作に悪影響を及ぼすおそれもある。   In the non-contact rechargeable device as described above, the magnetic flux generated in the primary coil 112 reaches the secondary coil 122 through the core 113 on the charger 110 side and the core 123 on the device 120 side, but part of the magnetic flux is Since the leakage spreads outside the cores 113 and 123, there is a problem that the charging efficiency is reduced by the leakage magnetic flux. In addition, the leakage magnetic flux may generate heat around the periphery or adversely affect the operation of the device.

本発明は、上記事情に鑑みてなされたものであり、コアからの漏れ磁束を低減し、充電効率を向上できる無接点充電式機器を提供することを課題とする。   This invention is made | formed in view of the said situation, and makes it a subject to provide the non-contact rechargeable apparatus which can reduce the leakage magnetic flux from a core and can improve charging efficiency.

前記課題を解決するため、本発明は、充電器に内蔵された一次コイルと、この充電器によって充電されるバッテリーを備える機器に内蔵された二次コイルとによる電磁誘導により、前記バッテリーの充電を行う無接点充電式機器において、前記一次コイルのコアと前記二次コイルのコアは、両端面を互いに対向させて配置されるようになっており、前記一次コイルのコアの形状が、棒状の基部の両端に脚部が屈曲形成されたＵ字形であって、かつ、両脚部が基部から離れるに従って狭まった形状となっており、前記二次コイルのコアの形状が、棒状の基部の両端に脚部が屈曲形成されたＵ字形であって、かつ、両脚部が基部から離れるに従って拡がった形状となっていることを特徴とする無接点充電式機器を提供する。
この無接点充電式機器においては、前記一次コイルおよび／または二次コイルのコアは、脚部と基部との間の隅部の外縁部に丸みを有することが好ましい。 In order to solve the above-mentioned problems, the present invention charges the battery by electromagnetic induction by a primary coil built in the charger and a secondary coil built in a device including the battery charged by the charger. In the contactless rechargeable device to be performed, the core of the primary coil and the core of the secondary coil are arranged so that both end faces face each other, and the shape of the core of the primary coil is a rod-shaped base portion The U-shaped leg is bent at both ends, and the both legs are narrowed as they are separated from the base. The core of the secondary coil has a leg at both ends of the rod-like base. Provided is a non-contact rechargeable device characterized in that a U-shaped portion is bent and a shape in which both leg portions expand as the distance from the base portion increases.
In this contactless rechargeable device, the core of the primary coil and / or the secondary coil preferably has a rounded outer edge at the corner between the leg and the base.

本発明によれば、一次コイルのコアの脚部が内向きに屈曲しているため、磁束がコアの外側に拡がりにくく、漏れ磁束の発生を抑制することが可能となる。コア内に磁束を閉じ込め、より効率的に二次コイルに電極を供給することができる。
コアが脚部と基部との間の隅部の外縁部に丸みを有する場合、該隅部からの漏れ磁束を抑制できるので、コア内に磁束を閉じ込める効果が一層高くなる。 According to the present invention, since the leg portion of the core of the primary coil is bent inward, the magnetic flux hardly spreads outside the core, and the generation of leakage magnetic flux can be suppressed. The magnetic flux is confined in the core, and the electrode can be supplied to the secondary coil more efficiently.
When the core has roundness at the outer edge of the corner between the leg and the base, the leakage magnetic flux from the corner can be suppressed, so that the effect of confining the magnetic flux in the core is further enhanced.

以下、最良の形態に基づき、図面を参照して本発明を説明する。
図１は、本発明の無接点充電式機器の一例を示す概略構成図である。図２は、図１の無接点充電式機器におけるコアを示す（ａ）正面図、および（ｂ）側面図である。
図１において、符号１０は充電器、符号１１は充電器１０の筐体（ハウジング）、符号１２は一次コイル、符号１３は一次コイルのコア、符号２０は充電器１０によって充電される機器、符号２１は機器２０の筐体（ハウジング）、符号２２は二次コイル、符号２３は二次コイルのコアである。上記コア１３，２３は、それぞれフェライト磁心等の磁心である。 The present invention will be described below with reference to the drawings based on the best mode.
FIG. 1 is a schematic configuration diagram showing an example of a contactless rechargeable device of the present invention. 2A is a front view and FIG. 2B is a side view showing a core in the contactless rechargeable device of FIG. 1.
In FIG. 1, reference numeral 10 is a charger, reference numeral 11 is a housing (housing) of the charger 10, reference numeral 12 is a primary coil, reference numeral 13 is a core of the primary coil, reference numeral 20 is a device charged by the charger 10, reference numeral Reference numeral 21 denotes a housing (housing) of the device 20, reference numeral 22 denotes a secondary coil, and reference numeral 23 denotes a core of the secondary coil. The cores 13 and 23 are each a magnetic core such as a ferrite magnetic core.

図２に示すように、一次コイル１２および二次コイル２２のコア１３，２３としては、棒状の基部１６，２６の両端に脚部１７，２７が屈曲形成されたＵ字形コアが採用されている。
一次コイル１２のコア１３は、脚部１７が基部１６から内向きに屈曲しており、両脚部１７が基部１６から離れるに従って狭まった形状となっている。この一次コイル１２のコア１３において、基部１６の中心軸線と脚部１７の中心軸線との成す内角θ1は鋭角である。角度θ1の大きさの範囲は、より好ましくは、６０〜８５°である。
二次コイル２２のコア２３は、脚部２７が基部２６から外向きに屈曲しており、両脚部２７が基部２６から離れるに従って拡がった形状となっている。この二次コイル２２のコア２３において、基部２６の中心軸線と脚部２７の中心軸線との成す内角θ2は鈍角である。角度θ2の大きさの範囲は、より好ましくは、９５〜１２０°である。
両コア１３，２３において、基部１６，２６と脚部１７，２７との間の隅部１８，２８は、外縁部に丸みを有することが好ましい。 As shown in FIG. 2, as the cores 13 and 23 of the primary coil 12 and the secondary coil 22, U-shaped cores in which leg portions 17 and 27 are bent at both ends of the rod-like base portions 16 and 26 are employed. .
The core 13 of the primary coil 12 has a leg portion 17 that is bent inward from the base portion 16, and has a shape that narrows as the both leg portions 17 are separated from the base portion 16. In the core 13 of the primary coil 12, the internal angle θ 1 formed by the central axis of the base portion 16 and the central axis of the leg portion 17 is an acute angle. The range of the magnitude of the angle θ 1 is more preferably 60 to 85 °.
The core 23 of the secondary coil 22 has a leg portion 27 that is bent outward from the base portion 26, and has a shape that expands as the both leg portions 27 move away from the base portion 26. In the core 23 of the secondary coil 22, the internal angle θ 2 formed by the central axis of the base portion 26 and the central axis of the leg portion 27 is an obtuse angle. The range of the magnitude of the angle θ 2 is more preferably 95 to 120 °.
In the cores 13 and 23, the corners 18 and 28 between the base parts 16 and 26 and the leg parts 17 and 27 preferably have rounded outer edges.

一次コイル１２のコア１３の両端部１４は、充電器１０の筐体１１に面して配置されている。そして、機器２０の底部を充電器１０上に置いた状態では、二次コイル２２のコア２３の両端部２４がそれぞれ一次コイル１２のコア１３の両端部１４に向かうように配置され、コア１３，２３の両端部１４，２４が互いに近接され、端面１５，２５同士が対向配置されて磁路を形成するようになっている。   Both end portions 14 of the core 13 of the primary coil 12 are arranged facing the casing 11 of the charger 10. And in the state which put the bottom part of the apparatus 20 on the charger 10, the both ends 24 of the core 23 of the secondary coil 22 are arrange | positioned so that it may respectively go to the both ends 14 of the core 13 of the primary coil 12, and the core 13, Both end portions 14 and 24 of 23 are close to each other, and end surfaces 15 and 25 are arranged to face each other to form a magnetic path.

一次コイル１２および二次コイル２２は、それぞれコア１３，２３の基部１６，２６に巻き回されている。一次コイル１２または二次コイル２２をコア１３，２３に巻き回す方法としては、例えば、コア１３，２３を基部１６，２６の長手方向を中心軸にして回転させながら直接銅線（導線）を巻き付ける方法が挙げられる。   The primary coil 12 and the secondary coil 22 are wound around the base portions 16 and 26 of the cores 13 and 23, respectively. As a method of winding the primary coil 12 or the secondary coil 22 around the cores 13 and 23, for example, a copper wire (conductive wire) is directly wound while the cores 13 and 23 are rotated around the longitudinal direction of the base portions 16 and 26 as a central axis. A method is mentioned.

上記無接点充電式機器Ｍの動作を説明する。図示しない電源から供給された電力を一次コイル１２に通電すると、電磁誘導により二次コイル２２が励磁され、一次コイル１２から二次コイル２２に電力が供給される。二次コイル２２に供給された電力をバッテリーに供給することにより、機器２０のバッテリーを充電することができる。   The operation of the contactless rechargeable device M will be described. When the primary coil 12 is energized with power supplied from a power source (not shown), the secondary coil 22 is excited by electromagnetic induction, and power is supplied from the primary coil 12 to the secondary coil 22. By supplying the power supplied to the secondary coil 22 to the battery, the battery of the device 20 can be charged.

上記構成の充電式機器によれば、一次コイルのコアの脚部が内向きに屈曲しているため、磁束がコアの外側に拡がりにくく、漏れ磁束の発生を抑制することが可能となる。コア内に磁束を閉じ込め、より効率的に二次コイルに電極を供給することができる。
また、隅部１８，２８が外縁部に丸みを有すると、隅部１８，２８が磁路の外側に突出する度合いが小さくなるので、該隅部１８，２８からの漏れ磁束を抑制できる。従って、コア内に磁束を閉じ込める効果が一層高くなり、充電効率をより向上するとともに、余分な熱の発生を低減することができる。 According to the rechargeable device having the above configuration, since the leg portion of the core of the primary coil is bent inward, the magnetic flux hardly spreads outside the core, and generation of leakage magnetic flux can be suppressed. The magnetic flux is confined in the core, and the electrode can be supplied to the secondary coil more efficiently.
Further, when the corners 18 and 28 are rounded at the outer edge, the degree of the projection of the corners 18 and 28 to the outside of the magnetic path is reduced, so that leakage magnetic flux from the corners 18 and 28 can be suppressed. Therefore, the effect of confining the magnetic flux in the core is further enhanced, the charging efficiency can be further improved, and the generation of excess heat can be reduced.

以下、本発明の実施例を示す。図２に示すように、一次コイル１２側のコア１３の基部１６の長さＡ1を３０．０ｍｍ、同コア１３の脚部１７の長さＢ1を１８．５ｍｍ、同コア１３の基部１６の中心軸線と脚部１７の中心軸線とが成す内角θ1を８５°、二次コイル２２側のコア２３の基部２６の長さＡ2を２５．０ｍｍ、同コア２３の脚部２７の長さＢ2を１０．５ｍｍ、両コア１３，２３の幅Ｗ（内周面と外周面の間隔）を８．０ｍｍ、両コア１３，２３の厚さＴを１５．０ｍｍ、同コア２３の基部２６の中心軸線と脚部２７の中心軸線とが成す内角θ2を９５°として、コア１３，２３を作製した。これを用いて無接点充電式機器を製造したところ、従来よりも良好な充電特性を示すことが見出された。 Examples of the present invention will be described below. As shown in FIG. 2, the length A 1 of the base portion 16 of the core 13 on the primary coil 12 side is 30.0 mm, the length B 1 of the leg portion 17 of the core 13 is 18.5 mm, and the base portion 16 of the core 13 The inner angle θ 1 formed by the central axis of the core and the central axis of the leg 17 is 85 °, the length A 2 of the base 26 of the core 23 on the secondary coil 22 side is 25.0 mm, and the length of the leg 27 of the core 23 is B 2 is 10.5 mm, the width W of both cores 13 and 23 (interval between the inner and outer peripheral surfaces) is 8.0 mm, the thickness T of both cores 13 and 23 is 15.0 mm, and the base of the core 23 The cores 13 and 23 were produced by setting the inner angle θ 2 formed by the central axis of 26 and the central axis of the leg 27 to 95 °. When a contactless rechargeable device was manufactured using this, it was found that the battery had better charging characteristics than before.

以上、本発明を好適な実施の形態に基づいて説明してきたが、本発明は上述の実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の改変が可能である。
例えば、上記形態例では、それぞれのコアについて、基部と脚部との間の隅部は、外縁部に丸みを有した形状となっているが、本発明はこれに限定されるものではない。但し、隅部の外縁部が丸みを有する場合、該隅部からの漏れ磁束を抑制できるので、コア内に磁束を閉じ込める効果が一層高くなる。
また、コイルは、コアの脚部に設けても良いし、基部と脚部の両方に設けても良い。 Although the present invention has been described based on the preferred embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. .
For example, in the above-described embodiment, for each core, the corner between the base and the leg has a rounded outer edge, but the present invention is not limited to this. However, when the outer edge portion of the corner portion is rounded, the leakage magnetic flux from the corner portion can be suppressed, so that the effect of confining the magnetic flux in the core is further enhanced.
Further, the coil may be provided on the leg part of the core, or may be provided on both the base part and the leg part.

本発明は、例えば、携帯電話や電気剃刀機、バリカン、卓上掃除機、アイロン、リモートコントローラなど、種々の家電機器や電子機器に適用することができる。充電器が、機器を置く台としての機能と、機器に内蔵されたバッテリーを充電する機能とを兼ね備えたものとなる。   The present invention can be applied to various home appliances and electronic devices such as mobile phones, electric razor machines, clippers, desk cleaners, irons, and remote controllers. The charger has both a function as a table on which the device is placed and a function of charging a battery built in the device.

本発明の無接点充電式機器の一例を示す概略構成図である。It is a schematic block diagram which shows an example of the non-contact rechargeable apparatus of this invention. 図１の無接点充電式機器におけるコアを示す（ａ）正面図、および（ｂ）側面図である。It is the (a) front view and (b) side view which show the core in the non-contact rechargeable apparatus of FIG. 従来の無接点充電式機器の一例を示す概略構成図である。It is a schematic block diagram which shows an example of the conventional non-contact rechargeable apparatus. 従来の無接点充電式機器の他の例を示す概略構成図である。It is a schematic block diagram which shows the other example of the conventional non-contact rechargeable apparatus.

符号の説明Explanation of symbols

Ｍ…無接点充電式機器、１０…充電器、１２…一次コイル、１３，２３…コア、１５，２５…コアの端面、１６，２６…コアの基部、１７，２７…コアの脚部、１８，２８…コアの隅部、２０…機器、２２…二次コイル。 M ... contactless rechargeable device, 10 ... charger, 12 ... primary coil, 13, 23 ... core, 15, 25 ... core end face, 16, 26 ... core base, 17, 27 ... core leg, 18 , 28 ... corners of the core, 20 ... equipment, 22 ... secondary coils.

Claims (2)

充電器に内蔵された一次コイルと、この充電器によって充電されるバッテリーを備える機器に内蔵された二次コイルとによる電磁誘導により、前記バッテリーの充電を行う無接点充電式機器において、
前記一次コイルのコアと前記二次コイルのコアは、両端面を互いに対向させて配置されるようになっており、
前記一次コイルのコアの形状が、棒状の基部の両端に脚部が屈曲形成されたＵ字形であって、かつ、両脚部が基部から離れるに従って狭まった形状となっており、
前記二次コイルのコアの形状が、棒状の基部の両端に脚部が屈曲形成されたＵ字形であって、かつ、両脚部が基部から離れるに従って拡がった形状となっていることを特徴とする無接点充電式機器。 In a contactless rechargeable device for charging the battery by electromagnetic induction by a primary coil built in the charger and a secondary coil built in a device including a battery charged by the charger,
The core of the primary coil and the core of the secondary coil are arranged so that both end faces face each other,
The shape of the core of the primary coil is a U-shape in which legs are bent at both ends of a rod-shaped base, and the both legs are narrowed as they are separated from the base,
The shape of the core of the secondary coil is a U-shape in which legs are bent at both ends of a rod-shaped base, and the both legs are widened away from the base. Contactless rechargeable equipment. 前記一次コイルおよび／または二次コイルのコアは、脚部と基部との間の隅部の外縁部に丸みを有することを特徴とする請求項１に記載の無接点充電式機器。   2. The contactless rechargeable device according to claim 1, wherein the core of the primary coil and / or the secondary coil has a roundness at an outer edge portion of a corner portion between the leg portion and the base portion.
JP2003373088A 2003-10-31 2003-10-31 Contactless rechargeable equipment Expired - Fee Related JP4112474B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003373088A JP4112474B2 (en) 2003-10-31 2003-10-31 Contactless rechargeable equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003373088A JP4112474B2 (en) 2003-10-31 2003-10-31 Contactless rechargeable equipment

Publications (2)

Publication Number Publication Date
JP2005136342A true JP2005136342A (en) 2005-05-26
JP4112474B2 JP4112474B2 (en) 2008-07-02

Family

ID=34649280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003373088A Expired - Fee Related JP4112474B2 (en) 2003-10-31 2003-10-31 Contactless rechargeable equipment

Country Status (1)

Country Link
JP (1) JP4112474B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008178544A (en) * 2007-01-24 2008-08-07 Olympus Corp Wireless feeding system, capsule endoscope and capsule endoscope system
US7475843B2 (en) 2007-03-13 2009-01-13 Yonezawa Electric Wire Co., Ltd. Winding jig, polygonal coil, and method of manufacturing polygonal coil
JP2013106477A (en) * 2011-11-15 2013-05-30 Toshiba Corp Resonator and wireless power transmission device
JP2014053366A (en) * 2012-09-05 2014-03-20 Tdk Corp Coil device
JP2014526797A (en) * 2011-09-15 2014-10-06 インテル コーポレイション Coil technology
JP2014526873A (en) * 2011-09-15 2014-10-06 インテル コーポレイション Coil technology
JP2014239175A (en) * 2013-06-10 2014-12-18 三菱電機株式会社 Non-contact power transmission device
CN105826048A (en) * 2016-06-03 2016-08-03 中国科学院电工研究所 Separated-type transformer with trapezoid cross section

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103972736A (en) * 2013-02-04 2014-08-06 上海蔻林半导体照明有限公司 Electro-magnetic inductive plug and socket combination

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008178544A (en) * 2007-01-24 2008-08-07 Olympus Corp Wireless feeding system, capsule endoscope and capsule endoscope system
US7475843B2 (en) 2007-03-13 2009-01-13 Yonezawa Electric Wire Co., Ltd. Winding jig, polygonal coil, and method of manufacturing polygonal coil
JP2014526797A (en) * 2011-09-15 2014-10-06 インテル コーポレイション Coil technology
JP2014526873A (en) * 2011-09-15 2014-10-06 インテル コーポレイション Coil technology
JP2013106477A (en) * 2011-11-15 2013-05-30 Toshiba Corp Resonator and wireless power transmission device
JP2014053366A (en) * 2012-09-05 2014-03-20 Tdk Corp Coil device
JP2014239175A (en) * 2013-06-10 2014-12-18 三菱電機株式会社 Non-contact power transmission device
CN105826048A (en) * 2016-06-03 2016-08-03 中国科学院电工研究所 Separated-type transformer with trapezoid cross section
CN105826048B (en) * 2016-06-03 2018-08-17 中国科学院电工研究所 A kind of trapezoid cross section detachable Transformer

Also Published As

Publication number Publication date
JP4112474B2 (en) 2008-07-02

Similar Documents

Publication Publication Date Title
US9264107B2 (en) Wireless power transmitting device for wireless power communication system
JP3706022B2 (en) Contactless charger
JP5118394B2 (en) Non-contact power transmission equipment
US7801573B2 (en) Magnetic holder for rechargeable devices
JP3430877B2 (en) Terminal device and power supply device
JP2005006440A (en) Noncontact charging system and noncontact charger
JP2006094699A (en) Inductively charged pad having arrangement indicator
JP4112474B2 (en) Contactless rechargeable equipment
KR20170063825A (en) Transmitter for inductive power transfer system
TW201421849A (en) Method for forming magnetic field space
JP2013110954A (en) Wireless chargeable portable electronic device and charger combined therewith
JPH1198707A (en) Non-contact charging device
JP4064333B2 (en) Contactless rechargeable equipment and charger
JPH0737737A (en) Noncontact type charger
JP2002170725A (en) Power supply unit
JP2002542579A (en) Device with rechargeable battery
JP3766295B2 (en) Contactless charger
JP2002231545A (en) Noncontact power unit
JPS63151006A (en) Electric power transmission equipment
KR20150007207A (en) Non-contact power feeding mechanism and electromagnetic induction coil for non-contact power feeding device
JP6094016B2 (en) Contactless power supply mechanism and secondary coil for contactless power supply mechanism
JP2009111316A (en) Reactor
JP2009004514A (en) Non-contact power transfer apparatus
JP2016025273A (en) Winding component
JP2513464B2 (en) Small transformer

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060801

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080311

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080409

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110418

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees