JP2006032589A - Transformer - Google Patents

Transformer Download PDF

Info

Publication number
JP2006032589A
JP2006032589A JP2004208152A JP2004208152A JP2006032589A JP 2006032589 A JP2006032589 A JP 2006032589A JP 2004208152 A JP2004208152 A JP 2004208152A JP 2004208152 A JP2004208152 A JP 2004208152A JP 2006032589 A JP2006032589 A JP 2006032589A
Authority
JP
Japan
Prior art keywords
conductor
primary coil
secondary coil
coil conductor
transformer
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
JP2004208152A
Other languages
Japanese (ja)
Other versions
JP4665447B2 (en
Inventor
Toshiyuki Nakada
俊之 中田
Koji Nakajima
浩二 中嶋
Tomio Marui
富夫 丸井
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2004208152A priority Critical patent/JP4665447B2/en
Publication of JP2006032589A publication Critical patent/JP2006032589A/en
Application granted granted Critical
Publication of JP4665447B2 publication Critical patent/JP4665447B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transformer in which the number of assembling steps is reduced and a connection reliability is insured without damaging a coupling level. <P>SOLUTION: A pair of mixed conductor wires 13 are constituted by juxtaposing a primary coil conductor wire 11 to a secondary coil conductor wire 12. The mixed conductor wires 13 are configured such that they are wound to form a multi-layer in alignment by folding back in a zigzag condition, and also to form a primary coil 14 composed of the helical primary coil conductor wire 11 and a secondary coil 15 composed of the helical secondary coil conductor wire 12. The transformer can insure the number of assembling steps and a connection reliability without damaging the coupling level, and this transformer can be adapted to one to be used for various electronic apparatuses, etc. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は各種電子機器等に用いるトランスに関するものである。   The present invention relates to a transformer used in various electronic devices.

以下、従来のトランスについて図面を参照しながら説明する。   A conventional transformer will be described below with reference to the drawings.

図6は従来のトランスの平面図、図7は同トランスの断面図である。   FIG. 6 is a plan view of a conventional transformer, and FIG. 7 is a sectional view of the transformer.

図6、図7において、従来のトランスは、一次コイル用導線1と二次コイル用導線2とを各々螺旋状に平面的に巻回して形成した一次コイル3と二次コイル4とを交互に積層し、複数の層に積層された一次コイル3の端部を互いに接続するとともに、複数の層に積層された二次コイル4の端部を互いに接続している(図示せず)。各々の端部は、仕様に合わせて並列接続したり直列接続したりしている。   6 and 7, the conventional transformer includes a primary coil 3 and a secondary coil 4 alternately formed by spirally winding a primary coil conductor 1 and a secondary coil conductor 2 in a plane. The ends of the primary coils 3 stacked in a plurality of layers are connected to each other, and the ends of the secondary coils 4 stacked in the plurality of layers are connected to each other (not shown). Each end is connected in parallel or in series according to the specifications.

また、互いに接続された一次コイル3と二次コイル4の各々の先端部は引き出し線5として内周側と外周側から引き出し、その先端には端子接続用の接続部6を設けている。   Further, the leading ends of the primary coil 3 and the secondary coil 4 connected to each other are drawn out from the inner peripheral side and the outer peripheral side as lead wires 5, and a connecting portion 6 for terminal connection is provided at the leading end.

さらに、積層された一次コイル3および二次コイル4の中心部の貫通孔7には、2つのE型磁心8を挿入して組み合わせ、閉磁路状磁心9を形成している。   Further, two E-type magnetic cores 8 are inserted and combined in the through-holes 7 at the center of the laminated primary coil 3 and secondary coil 4 to form a closed magnetic path-shaped magnetic core 9.

なお、この出願の発明に関連する先行技術文献情報としては、例えば、特許文献1が知られている。
特開平7−135117号公報
As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
Japanese Unexamined Patent Publication No. 7-135117

上記構成では、一次コイル3と二次コイル4とが複数の層に交互に積層されているので、結合度が良いものの、各層から引き出される一次コイル3の引き出し線5を互いに接続するとともに、二次コイル4の引き出し線5も互いに接続する必要があり、組み立て工数の増加および、各々の引き出し線5の接続に伴う接続信頼性を確保しなければならないという問題点を有していた。   In the above configuration, since the primary coil 3 and the secondary coil 4 are alternately laminated in a plurality of layers, although the degree of coupling is good, the lead wires 5 of the primary coil 3 drawn from each layer are connected to each other, and The lead wires 5 of the next coil 4 also need to be connected to each other, and there are problems that the number of assembling steps is increased and the connection reliability associated with the connection of each lead wire 5 must be ensured.

本発明は上記問題点を解決するもので、結合度を損なうことなく、組み立て工数の低減および接続信頼性を確保したトランスを提供することを目的としている。   SUMMARY OF THE INVENTION The present invention solves the above-described problems, and an object of the present invention is to provide a transformer that can reduce assembly man-hours and ensure connection reliability without impairing the degree of coupling.

上記問題点を解決するために本発明は、特に、一次コイル用導線と二次コイル用導線とを並列に配置した一組の混合導線を、つづら折り状に折り返しながら多層に整列巻して、螺旋状の前記一次コイル用導線からなる一次コイルと螺旋状の前記二次コイル用導線からなる二次コイルとを形成した構成である。   In order to solve the above-described problems, the present invention particularly relates to a spiral winding of a set of mixed conductors in which a primary coil conductor and a secondary coil conductor are arranged in parallel while being folded back in a zigzag manner. It is the structure which formed the primary coil which consists of the said conducting wire for primary coils, and the secondary coil which consists of the spiral said conducting wire for secondary coils.

上記構成によれば、一次コイル用導線と二次コイル用導線とを並列に配置した一組の混合導線を、つづら折り状に折り返しながら多層に整列巻して、螺旋状の一次コイル用導線からなる一次コイルと螺旋状の二次コイル用導線からなる二次コイルとを形成しているので、一次コイルと二次コイルの断面形状は、一次コイル用導線と二次コイル用導線とを各々螺旋状に平面的に巻回して交互に積層した一次コイルと二次コイルの断面形状と略同等の形状となる。   According to the above configuration, a set of mixed conductors in which a primary coil conductor and a secondary coil conductor are arranged in parallel are arranged in multiple layers while being folded back in a zigzag manner, thereby forming a spiral primary coil conductor. Since the primary coil and the secondary coil composed of the spiral secondary coil conductor are formed, the primary coil and the secondary coil have a cross-sectional shape in which the primary coil conductor and the secondary coil conductor are respectively spiral. The cross-sectional shape of the primary coil and the secondary coil, which are wound in a plane and alternately stacked, is substantially the same.

すなわち、一次コイルと二次コイルとは交互に積層された断面形状となるので、結合度を損なうことがないとともに、一次コイルと二次コイルの引き出し線は、巻き始めと巻き終わりにしかないので、複数の引き出し線を互いに接続する必要性がなく、組み立て工数を少なくできるとともに、接続信頼性も確保できる。   That is, since the primary coil and the secondary coil have cross-sectional shapes that are alternately stacked, the coupling degree is not impaired, and the lead wires of the primary coil and the secondary coil are only at the start and end of winding. There is no need to connect a plurality of lead wires to each other, the number of assembly steps can be reduced, and connection reliability can be ensured.

特に、一次コイルと二次コイルとは、一次コイル用導線と二次コイル用導線とを並列に配置した一組の混合導線を、つづら折り状に折り返しながら多層に整列巻することにより、交互に積層された断面形状となるので、隣接する一次コイル用導線と二次コイル用導線との電位差が小さく、短絡を抑制することができる。   In particular, the primary coil and the secondary coil are alternately stacked by winding a set of mixed conductors in which a primary coil conductor and a secondary coil conductor are arranged in parallel while winding them in multiple layers while folding them in a zigzag manner. Therefore, the potential difference between the adjacent primary coil conductor and the secondary coil conductor is small, and a short circuit can be suppressed.

以下、本発明の一実施の形態におけるトランスについて、図面を参照しながら説明する。   Hereinafter, a transformer according to an embodiment of the present invention will be described with reference to the drawings.

図1は本発明の一実施の形態におけるトランスの断面図、図2は図1のA部における混合導線の巻回手順を示す拡大断面図、図3は同トランスの斜視図、図4はトランスの分解斜視図である。   1 is a cross-sectional view of a transformer according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view showing a winding procedure of a mixed conducting wire in part A of FIG. 1, FIG. 3 is a perspective view of the transformer, and FIG. FIG.

図1、図2において、本発明の一実施の形態におけるトランスは、一次コイル用導線11と二次コイル用導線12とを並列に配置した一組の混合導線13を、つづら折り状に折り返しながら多層に整列巻して、螺旋状の一次コイル用導線11からなる一次コイル14と螺旋状の二次コイル用導線12からなる二次コイル15とを形成している。このように整列巻すると、一次コイル用導線11と二次コイル用導線12とを各々螺旋状に平面的に巻回して交互に積層した一次コイル14と二次コイル15の断面形状と略同等の形状となる。ここで用いる一次コイル用導線は絶縁導線であり、二次コイル用導線は三層絶縁電線である。   1 and 2, the transformer according to one embodiment of the present invention includes a multi-layered structure in which a pair of mixed conductors 13 in which a primary coil conductor 11 and a secondary coil conductor 12 are arranged in parallel are folded back in a zigzag manner. The primary coil 14 composed of the spiral primary coil conductor 11 and the secondary coil 15 composed of the spiral secondary coil conductor 12 are formed. When aligned winding is performed in this way, the primary coil lead wire 11 and the secondary coil lead wire 12 are each spirally wound in a plane and each of the primary coil 14 and the secondary coil 15 are stacked in an alternating manner and have substantially the same cross-sectional shape. It becomes a shape. The primary coil conductor used here is an insulated conductor, and the secondary coil conductor is a three-layer insulated wire.

この混合導線13は二組用いており、各々つづら折り状に折り返しながら(図2の矢印の向き)多層に完全整列巻しており、一次コイル14と二次コイル15とからなるコイル部16を二組形成している。この際、隣接する上下の層に整列巻された一次コイル用導線11および二次コイル用導線12は、いずれか一方を自己融着線として、互いに密着させている。   Two sets of the mixed conducting wires 13 are used, and each of the mixed conducting wires 13 is wound into a folded shape (in the direction of the arrow in FIG. 2) and is completely aligned and wound in multiple layers, and the coil portion 16 composed of the primary coil 14 and the secondary coil 15 is arranged in two. A pair is formed. At this time, the primary coil lead wire 11 and the secondary coil lead wire 12 aligned and wound in adjacent upper and lower layers are brought into close contact with each other as a self-bonding wire.

また、一次コイル用導線11の導線長を二次コイル用導線12の導線長よりも長くし、二次コイル用導線12の導線長を超える一次コイル用導線11の一部17は、二次コイル15と対向するように巻回している。   Further, the conductor length of the primary coil conductor 11 is made longer than the conductor length of the secondary coil conductor 12, and a portion 17 of the primary coil conductor 11 exceeding the conductor length of the secondary coil conductor 12 It is wound so as to face 15.

さらに、これら一次コイル用導線11および二次コイル用導線12は貫通孔を有するボビン22に巻回して配置しており、この貫通孔にはE型磁心18の中磁脚19を挿入し、ギャップ紙24を介して中磁脚19および外磁脚20をI型磁心25と互いに突き合わせ、接着剤26で接着して閉磁路状磁心21を形成している。   Further, the primary coil lead wire 11 and the secondary coil lead wire 12 are wound around a bobbin 22 having a through hole, and the middle magnetic leg 19 of the E-type magnetic core 18 is inserted into the through hole, and the gap The middle magnetic leg 19 and the outer magnetic leg 20 are brought into contact with the I-type magnetic core 25 through the paper 24 and bonded with an adhesive 26 to form a closed magnetic path-shaped magnetic core 21.

上記構成の一次コイル14および二次コイル15は、図3、図4に示すように、E型磁心18、I型磁心25、ボビン22、蓋部23で挟み込むようにして組み合わせている。   As shown in FIGS. 3 and 4, the primary coil 14 and the secondary coil 15 configured as described above are combined so as to be sandwiched between an E-type magnetic core 18, an I-type magnetic core 25, a bobbin 22, and a lid portion 23.

上記構成により、一次コイル用導線11と二次コイル用導線12とを並列に配置した一組の混合導線13を、つづら折り状に折り返しながら多層に整列巻して、螺旋状の一次コイル用導線11からなる一次コイル14と螺旋状の二次コイル用導線12からなる二次コイル15とを形成しているので、一次コイル14と二次コイル15の断面形状は、一次コイル用導線11と二次コイル用導線12とを各々螺旋状に平面的に巻回して交互に積層した一次コイル14と二次コイル15の断面形状と略同等の形状となる。   With the above configuration, a set of mixed conducting wires 13 in which the primary coil conducting wire 11 and the secondary coil conducting wire 12 are arranged in parallel are aligned and wound in multiple layers while being folded back in a zigzag manner to form a spiral primary coil conducting wire 11. Are formed, and the secondary coil 15 formed of the spiral secondary coil conductor 12 is formed, the cross-sectional shapes of the primary coil 14 and the secondary coil 15 are the same as the primary coil conductor 11 and the secondary coil 15. The coil lead wires 12 are spirally planarly wound and planarly wound to form a primary coil 14 and a secondary coil 15 that are substantially equivalent in cross-sectional shape.

すなわち、一次コイル14と二次コイル15とは交互に積層された断面形状となるので、結合度を損なうことがないとともに、一次コイル14と二次コイル15の引き出し線24は、巻き始めと巻き終わりにしかないので、複数の引き出し線24を互いに接続する必要性がなく、組み立て工数の低減および接続信頼性も確保できる。   That is, since the primary coil 14 and the secondary coil 15 have cross-sectional shapes that are alternately stacked, the degree of coupling is not impaired, and the lead wires 24 of the primary coil 14 and the secondary coil 15 Since it is only at the end, there is no need to connect the plurality of lead wires 24 to each other, and the number of assembly steps can be reduced and connection reliability can be ensured.

特に、一次コイル14と二次コイル15とは、一次コイル用導線11と二次コイル用導線12とを並列に配置した一組の混合導線13を、つづら折り状に折り返しながら多層に整列巻することにより、交互に積層された断面形状となるので、隣接する一次コイル用導線11と二次コイル用導線12との電位差が小さく、短絡を抑制することができる。単純に、一次コイル14と二次コイル15を複数の層に交互に積層した場合は、隣接する層の一次コイル用導線11の巻き始め部分と二次コイル用導線12の巻き始め部分における電位差が大きく異なるので、短絡を生じる恐れがある。   In particular, the primary coil 14 and the secondary coil 15 are formed by aligning and winding a set of mixed conducting wires 13 in which a primary coil conducting wire 11 and a secondary coil conducting wire 12 are arranged in parallel while being folded back in a zigzag manner. As a result, the cross-sectional shapes are alternately laminated, so that the potential difference between the adjacent primary coil conductor 11 and secondary coil conductor 12 is small, and a short circuit can be suppressed. Simply, when the primary coil 14 and the secondary coil 15 are alternately laminated in a plurality of layers, there is a potential difference between the winding start portion of the primary coil conductor 11 and the winding start portion of the secondary coil conductor 12 in the adjacent layers. Since it is very different, there is a risk of short circuit.

その上、一次コイル用導線11は絶縁導線であり、二次コイル用導線12は三層絶縁電線なので、耐絶縁性が向上して絶縁距離を低減でき、トランスの小型化が可能となる。一次コイル用導線11、二次コイル用導線12に、絶縁導線を用いるか三層絶縁電線を用いるかは仕様によって選択すればよいが、高電位の電圧がかかる方に少なくとも用いることにより、的確に耐絶縁性を向上できる。   In addition, since the primary coil conductor 11 is an insulated conductor and the secondary coil conductor 12 is a three-layer insulated wire, the insulation resistance is improved, the insulation distance can be reduced, and the transformer can be miniaturized. Whether to use an insulated conductor or a three-layer insulated wire for the primary coil conductor 11 and the secondary coil conductor 12 may be selected depending on the specifications. Insulation resistance can be improved.

また、混合導線13は完全整列巻しており、隣接する上下の層に整列巻された一次コイル用導線11および二次コイル用導線12を互いに密着させているので、結合度をより向上させることができる。この際、一次コイル用導線11と二次コイル用導線12のいずれか一方を自己融着線とすることにより、容易に完全整列巻とすることができる。   Further, the mixed conducting wire 13 is completely aligned and the primary coil conducting wire 11 and the secondary coil conducting wire 12 aligned and wound in adjacent upper and lower layers are brought into close contact with each other, so that the degree of coupling is further improved. Can do. At this time, by making any one of the primary coil lead wire 11 and the secondary coil lead wire 12 a self-bonding wire, complete winding can be easily achieved.

さらに、複数組の混合導線13を、各々つづら折り状に折り返しながら多層に整列巻して、一次コイル14と二次コイル15とからなるコイル部16を複数組形成することにより、様々な仕様に合わせて、巻線を施すことができる。   Furthermore, a plurality of sets of mixed conducting wires 13 are wound in a multi-layered manner while being folded back in a zigzag manner to form a plurality of sets of coil portions 16 composed of a primary coil 14 and a secondary coil 15, so that various specifications can be met. Winding can be applied.

なお、本発明の一実施の形態では、一次コイル用導線11および二次コイル用導線12の内、一次コイル用導線11の導線長を二次コイル用導線12の導線長よりも長くし、二次コイル用導線12の導線長を超える一次コイル用導線11の一部17は、二次コイル用導線12と対向するように巻回しているが、図5に示すように、一次コイル用導線11の導線長と二次コイル用導線12の導線長とを略同等にし、この一次コイル用導線11に新たな一次コイル用導線11を接続するようにして、新たな一次コイル用導線11を二次コイル用導線12と対向するように巻回してもよい。   In one embodiment of the present invention, of the primary coil conductor 11 and the secondary coil conductor 12, the conductor length of the primary coil conductor 11 is made longer than the conductor length of the secondary coil conductor 12, A part 17 of the primary coil conductor 11 exceeding the conductor length of the secondary coil conductor 12 is wound so as to face the secondary coil conductor 12, but as shown in FIG. 5, the primary coil conductor 11 is wound. The primary coil conductor 11 is made substantially equal to the conductor length of the secondary coil conductor 12, and the new primary coil conductor 11 is connected to the primary coil conductor 11 so that the new primary coil conductor 11 is connected to the secondary coil 11. You may wind so that it may oppose with the conducting wire 12 for coils.

また、一次コイル用導線11の一部17を、一次コイル用導線11と二次コイル用導線12とからなるコイル部16の外周に、そのまま、巻回してもよい。   Further, a part 17 of the primary coil conductor 11 may be wound as it is around the outer periphery of the coil portion 16 composed of the primary coil conductor 11 and the secondary coil conductor 12.

以上のように本発明にかかるトランスは、結合度を損なうことなく、組み立て工数および接続信頼性を確保することができ、各種電子機器等に用いるトランスに適用できる。   As described above, the transformer according to the present invention can ensure assembly man-hours and connection reliability without impairing the degree of coupling, and can be applied to transformers used in various electronic devices and the like.

本発明の一実施の形態におけるトランスの断面図Sectional drawing of the transformer in one embodiment of the present invention 図1のA部における混合導線の巻回手順を示す拡大断面図The expanded sectional view which shows the winding procedure of the mixed conducting wire in the A section of FIG. 同トランスの斜視図Perspective view of the transformer 同トランスの分解斜視図Exploded perspective view of the transformer 他の実施の形態におけるトランスの分解斜視図An exploded perspective view of a transformer in another embodiment 従来のトランスの平面図Plan view of conventional transformer 同トランスの断面図Cross section of the transformer

符号の説明Explanation of symbols

11 一次コイル用導線
12 二次コイル用導線
13 混合導線
14 一次コイル
15 二次コイル
16 コイル部
17 一部
18 E型磁心
19 中磁脚
20 外磁脚
21 閉磁路状磁心
22 ボビン
23 蓋部
24 ギャップ紙
25 I型磁心
26 接着剤
DESCRIPTION OF SYMBOLS 11 Conductor for primary coil 12 Conductor for secondary coil 13 Mixed conductor 14 Primary coil 15 Secondary coil 16 Coil part 17 Part 18 E type magnetic core 19 Middle magnetic leg 20 Outer magnetic leg 21 Closed magnetic path-like magnetic core 22 Bobbin 23 Lid 24 Gap paper 25 Type I magnetic core 26 Adhesive

Claims (6)

一次コイル用導線と二次コイル用導線とを並列に配置した一組の混合導線を、つづら折り状に折り返しながら多層に整列巻して、螺旋状の前記一次コイル用導線からなる一次コイルと螺旋状の前記二次コイル用導線からなる二次コイルとを形成したトランス。 A set of mixed conductors in which a primary coil conductor and a secondary coil conductor are arranged in parallel are wound in a multi-layered manner while being folded back in a zigzag manner to form a primary coil and a spiral formed of the spiral primary coil conductor. A transformer formed with a secondary coil made of the secondary coil conductor. 前記混合導線は完全整列巻しており、隣接する上下の層に整列巻された前記一次コイル用導線および前記二次コイル用導線を互いに密着させた請求項1記載のトランス。 2. The transformer according to claim 1, wherein the mixed conducting wire is completely aligned and the primary coil conducting wire and the secondary coil conducting wire aligned and wound in adjacent upper and lower layers are in close contact with each other. 前記一次コイル用導線と前記二次コイル用導線のいずれか一方は自己融着線とした請求項2記載のトランス。 The transformer according to claim 2, wherein one of the primary coil conductor and the secondary coil conductor is a self-bonding wire. 複数組の前記混合導線を、各々つづら折り状に折り返しながら多層に整列巻して、前記一次コイルと前記二次コイルとを複数組形成した請求項1記載のトランス。 2. The transformer according to claim 1, wherein a plurality of sets of the mixed conducting wires are aligned and wound in multiple layers while being folded in a zigzag manner to form a plurality of sets of the primary coil and the secondary coil. 前記一次コイル用導線および前記二次コイル用導線の内、一方の導線長を他方の導線長よりも長くし、他方の導線長を超える一方の導線の一部は、他方の導線と対向するように巻回した請求項1記載のトランス。 Of the primary coil conductor and the secondary coil conductor, one conductor is made longer than the other conductor, and a part of one conductor exceeding the other conductor is opposed to the other conductor. The transformer according to claim 1, which is wound around. 前記一次コイル用導線または前記二次コイル用導線の内、少なくとも一方は三層絶縁電線とした請求項1記載のトランス。 The transformer according to claim 1, wherein at least one of the primary coil conductor or the secondary coil conductor is a three-layer insulated wire.
JP2004208152A 2004-07-15 2004-07-15 Trance Expired - Fee Related JP4665447B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004208152A JP4665447B2 (en) 2004-07-15 2004-07-15 Trance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004208152A JP4665447B2 (en) 2004-07-15 2004-07-15 Trance

Publications (2)

Publication Number Publication Date
JP2006032589A true JP2006032589A (en) 2006-02-02
JP4665447B2 JP4665447B2 (en) 2011-04-06

Family

ID=35898580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004208152A Expired - Fee Related JP4665447B2 (en) 2004-07-15 2004-07-15 Trance

Country Status (1)

Country Link
JP (1) JP4665447B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073427A1 (en) * 2010-12-01 2012-06-07 パナソニック株式会社 Non-contact charging module and non-contact charging instrument
JP2013131589A (en) * 2011-12-21 2013-07-04 Mitsubishi Electric Corp Winding for transformer, transformer, and power converter
KR101705062B1 (en) * 2015-08-26 2017-02-10 박종복 Converter for led lighting apparatus
US9607757B2 (en) 2011-11-02 2017-03-28 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US9667086B2 (en) 2012-06-28 2017-05-30 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal
US9735606B2 (en) 2012-06-28 2017-08-15 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including charging coil and wireless communication coil, wireless charging module including charging coil and wireless communication coil
US9935481B2 (en) 2012-02-17 2018-04-03 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including wireless charging module and battery pack
US9954396B2 (en) 2011-06-14 2018-04-24 Panasonic Corporation Electronic device including non-contact charging module
US10204734B2 (en) 2011-11-02 2019-02-12 Panasonic Corporation Electronic device including non-contact charging module and near field communication antenna
US10218222B2 (en) 2011-01-26 2019-02-26 Panasonic Intellectual Property Management Co., Ltd. Non-contact charging module having a wireless charging coil and a magnetic sheet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020153U (en) * 1973-06-18 1975-03-07
WO1990002594A1 (en) * 1988-09-13 1990-03-22 Autotrol Corporation Filter assembly
JPH0442907A (en) * 1990-06-07 1992-02-13 Toshiba Corp Plane composite coil for plane transformer and its manufacture
JPH05175059A (en) * 1991-12-21 1993-07-13 Totoku Electric Co Ltd Transformer
JPH07142263A (en) * 1993-11-22 1995-06-02 Hitachi Mizusawa Electron Co Ltd Transformer, its manufacture and coil winding apparatus
JPH09199347A (en) * 1996-01-23 1997-07-31 Matsushita Electric Ind Co Ltd Sheet transformer
JP2004040025A (en) * 2002-07-08 2004-02-05 Natl Space Development Agency Of Japan Sheet type transformer and electronic apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020153U (en) * 1973-06-18 1975-03-07
WO1990002594A1 (en) * 1988-09-13 1990-03-22 Autotrol Corporation Filter assembly
JPH0442907A (en) * 1990-06-07 1992-02-13 Toshiba Corp Plane composite coil for plane transformer and its manufacture
JPH05175059A (en) * 1991-12-21 1993-07-13 Totoku Electric Co Ltd Transformer
JPH07142263A (en) * 1993-11-22 1995-06-02 Hitachi Mizusawa Electron Co Ltd Transformer, its manufacture and coil winding apparatus
JPH09199347A (en) * 1996-01-23 1997-07-31 Matsushita Electric Ind Co Ltd Sheet transformer
JP2004040025A (en) * 2002-07-08 2004-02-05 Natl Space Development Agency Of Japan Sheet type transformer and electronic apparatus

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073427A1 (en) * 2010-12-01 2012-06-07 パナソニック株式会社 Non-contact charging module and non-contact charging instrument
US10218222B2 (en) 2011-01-26 2019-02-26 Panasonic Intellectual Property Management Co., Ltd. Non-contact charging module having a wireless charging coil and a magnetic sheet
US10003219B1 (en) 2011-06-14 2018-06-19 Panasonic Corporation Electronic device including non-contact charging module
US10468913B2 (en) 2011-06-14 2019-11-05 Sovereign Peak Ventures, Llc Electronic device including non-contact charging module
US10044225B2 (en) 2011-06-14 2018-08-07 Panasonic Corporation Electronic device including non-contact charging module
US9954396B2 (en) 2011-06-14 2018-04-24 Panasonic Corporation Electronic device including non-contact charging module
US9607757B2 (en) 2011-11-02 2017-03-28 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US9634515B2 (en) 2011-11-02 2017-04-25 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
US10204734B2 (en) 2011-11-02 2019-02-12 Panasonic Corporation Electronic device including non-contact charging module and near field communication antenna
US9941048B2 (en) 2011-11-02 2018-04-10 Panasonic Corporation Non-contact wireless communication coil, transmission coil, and portable wireless terminal
JP2013131589A (en) * 2011-12-21 2013-07-04 Mitsubishi Electric Corp Winding for transformer, transformer, and power converter
US9991735B1 (en) 2012-02-17 2018-06-05 Panasonic Intellectual Property Management Co., Ltd. Electronic device including non-contact charging module and battery
US9997952B2 (en) 2012-02-17 2018-06-12 Panasonic Intellectual Property Management Co., Ltd. Wireless charging module and mobile terminal including the same
US10020673B2 (en) 2012-02-17 2018-07-10 Panasonic Intellectual Property Management Co., Ltd. Electronic device including non-contact charging module and battery
US9935481B2 (en) 2012-02-17 2018-04-03 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including wireless charging module and battery pack
US10574082B2 (en) 2012-02-17 2020-02-25 Sovereign Peak Ventures, Llc Electronic device including non-contact charging module and battery
US11070075B2 (en) 2012-02-17 2021-07-20 Sovereign Peak Ventures, Llc Electronic device including non-contact charging module and battery
US9735606B2 (en) 2012-06-28 2017-08-15 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including charging coil and wireless communication coil, wireless charging module including charging coil and wireless communication coil
US9667086B2 (en) 2012-06-28 2017-05-30 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal
US10230272B2 (en) 2012-06-28 2019-03-12 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal including wireless charging coil and magnetic sheet having inwardly receding portion
US10291069B2 (en) 2012-06-28 2019-05-14 Panasonic Intellectual Property Management Co., Ltd. Mobile terminal and chargeable communication module
US10574090B2 (en) 2012-06-28 2020-02-25 Sovereign Peak Ventures, Llc Mobile terminal including wireless charging coil and magnetic sheet having inwardly receding portion
KR101705062B1 (en) * 2015-08-26 2017-02-10 박종복 Converter for led lighting apparatus

Also Published As

Publication number Publication date
JP4665447B2 (en) 2011-04-06

Similar Documents

Publication Publication Date Title
JP4665447B2 (en) Trance
US5696477A (en) Transformer
TWI389147B (en) Conductive winding structure and magnetic device using same
US7982576B2 (en) Transformer
JP4895193B2 (en) Multilayer inductor
JP4836015B2 (en) Multilayer transformer parts
KR930008880A (en) Multi-Layer Coil and Manufacturing Method Thereof
JP4595312B2 (en) Trance
US5381124A (en) Multi-turn z-foldable secondary winding for a low-profile, conductive film transformer
JP2005310980A (en) Inductor and transformer
JP2003264110A (en) Spiral coil and transformer
CN105931815A (en) Planar transformer
JPH056829A (en) Thin transformer
JP2008177453A (en) Winding structure
JP2008205212A (en) Transformer
JPH0737723A (en) Line filter transformer provided with built-in capacitor
JP2006040922A (en) Coil part and its manufacturing method
JP6569351B2 (en) Insulated transformer mounting board and power supply
JPWO2009104221A1 (en) Reactor
JP2014049681A (en) Transformer
KR20190014727A (en) Dual Core Planar Transformer
US9000878B1 (en) Magnetic component with bobbinless winding
JP2971943B2 (en) Thin transformer
US20140097926A1 (en) Induction device
TWI394181B (en) Transformer

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070712

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20070820

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091120

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091222

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100105

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100308

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: 20101214

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101227

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

Free format text: PAYMENT UNTIL: 20140121

Year of fee payment: 3

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

Free format text: PAYMENT UNTIL: 20140121

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees