JPH11162748A - Electromagnetic device - Google Patents

Electromagnetic device

Info

Publication number
JPH11162748A
JPH11162748A JP9322752A JP32275297A JPH11162748A JP H11162748 A JPH11162748 A JP H11162748A JP 9322752 A JP9322752 A JP 9322752A JP 32275297 A JP32275297 A JP 32275297A JP H11162748 A JPH11162748 A JP H11162748A
Authority
JP
Japan
Prior art keywords
winding
windings
terminal
shaped core
terminals
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
JP9322752A
Other languages
Japanese (ja)
Other versions
JP3584707B2 (en
Inventor
Akinobu Matsuo
晃伸 松尾
Fumitoshi Nagasaki
文俊 長崎
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP32275297A priority Critical patent/JP3584707B2/en
Publication of JPH11162748A publication Critical patent/JPH11162748A/en
Application granted granted Critical
Publication of JP3584707B2 publication Critical patent/JP3584707B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic device, by which a wire can be wound around a small-sized annular core without using partition plates, and insulation among multiple windings can be ensured. SOLUTION: An electromagnetic device is provided with an almost annular core 1, multiple windings 2 and 3 which are wound around the almost annular core 1 with a space between them and terminals 4a, 4b, 5a and 5b provided near the ends of the windings 2 and 3. The starting and finishing ends 2a, 2b, 3a and 3b of the windings 2 and 3 are respectively crossed and are connected to the terminals 4a, 4b, 5a and 5b.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、電気機器のカレ
ントトランスやノイズフィルタなどに用いられ、リング
状コアにコイルを設けた電磁装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic device which is used for a current transformer or a noise filter of an electric device and has a ring-shaped core provided with a coil.

【0002】[0002]

【従来の技術】図7および図8に示すように、リング状
コア50に複数のコイル51、52をトロイダル状に巻
回し、電気機器等に用いられるトランスを形成してい
る。使用される巻線51、52は、絶縁被膜を有するエ
ネメル線が採用されるが、絶縁被膜の傷やピンホール等
により、巻線51、52間の絶縁性能が低下する。
2. Description of the Related Art As shown in FIGS. 7 and 8, a plurality of coils 51 and 52 are wound in a toroidal shape around a ring-shaped core 50 to form a transformer used for electric equipment and the like. As the windings 51 and 52 to be used, an enamel wire having an insulating coating is adopted, but the insulation performance between the windings 51 and 52 is deteriorated due to scratches on the insulating coating or pinholes.

【0003】そこで、複数の巻線51、52間の電気絶
縁を確保するために、1次巻線51および2次巻線52
間に絶縁樹脂等からなる仕切板53を用いているのが一
般的である。仕切板53を用いることにより、1次巻線
51および2次巻線52間の絶縁距離(沿面距離)が確
保できる。54は端子55を設けたリング状ボビンであ
り、仕切板53を設けるとともに、リング状コア50を
内蔵している。
In order to secure electrical insulation between the plurality of windings 51 and 52, a primary winding 51 and a secondary winding 52 are provided.
Generally, a partition plate 53 made of an insulating resin or the like is used between them. By using the partition plate 53, an insulation distance (creeping distance) between the primary winding 51 and the secondary winding 52 can be secured. Numeral 54 denotes a ring-shaped bobbin provided with a terminal 55, in which a partition plate 53 is provided and a ring-shaped core 50 is incorporated.

【0004】[0004]

【発明が解決しようとする課題】従来のような仕切板5
3を有するコア内蔵のリング状ボビン54の場合、仕切
板53があるため部品点数が増加し、仕切板53を設置
するため工程の増加があり、仕切板53があることによ
る巻線スペースの縮小化のため、巻線の巻線作業性が劣
化し、また小型のリング状ボビンおよびリング状コアの
採用が困難となり、リング状コアの絶縁にボビンではな
く、絶縁樹脂コーティングされたリング状コアにも不適
等の問題点があった。
SUMMARY OF THE INVENTION A conventional partition plate 5
In the case of the ring-shaped bobbin 54 having a core 3 having the partition 3, the number of components increases due to the presence of the partition 53, and the number of steps for installing the partition 53 increases, and the winding space is reduced by the presence of the partition 53. As a result, winding workability of the windings deteriorates, and it becomes difficult to adopt small ring-shaped bobbins and ring-shaped cores. Also had the problem of inequality.

【0005】したがって、この発明の目的は、仕切板を
用いることなく、小型のリング状コアに巻線でき、しか
も複数の巻線間の絶縁を確保できる電磁装置を提供する
ことである。
Accordingly, it is an object of the present invention to provide an electromagnetic device which can be wound around a small ring-shaped core without using a partition plate, and which can ensure insulation between a plurality of windings.

【0006】[0006]

【課題を解決するための手段】請求項1記載の電磁装置
は、略リング状コアと、この略リング状コアに互いに隔
離して巻回された複数の巻線と、前記巻線の端部寄りに
設けられた端子とを備え、前記巻線の巻き始めおよび巻
き終わりの端末を交差させて前記端子に接続したことを
特徴とするものである。
According to an aspect of the present invention, there is provided an electromagnetic device, comprising: a substantially ring-shaped core; a plurality of windings wound around the substantially ring-shaped core separately from each other; And a terminal provided closer to the terminal and connected to the terminal so that terminals at the beginning and end of winding of the winding cross each other.

【0007】請求項1記載の電磁装置によれば、互いに
交差した巻き始め端末および巻き終わり端末の張力によ
り巻線がその軸方向に縮められるので、仕切板を用いず
に複数の巻線間の絶縁距離の確保が容易にでき、仕切板
を必要としないため部品点数および製造工程の削減が可
能となる。とくに略リング状コアの内径の小さいものに
おいて効果が大きい。
According to the first aspect of the present invention, the windings are contracted in the axial direction by the tensions of the winding start terminal and the winding end terminal which intersect each other, so that a plurality of windings can be formed without using a partition plate. The insulation distance can be easily secured, and a partition plate is not required, so that the number of parts and the number of manufacturing steps can be reduced. The effect is particularly large in the case where the inner diameter of the substantially ring-shaped core is small.

【0008】[0008]

【発明の実施の形態】この発明の第1の実施の形態を図
1および図2により説明する。すなわち、この電磁装置
であるトランスは、略リング状コア1と、複数の巻線
2、3と、端子4a、4b、5a、5bとを有する。略
リング状コア1は、円形リング状のフェライトを用いた
トロイダルコアであり、表面が絶縁膜によりコーティン
グされている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, the transformer as the electromagnetic device has a substantially ring-shaped core 1, a plurality of windings 2, 3, and terminals 4a, 4b, 5a, 5b. The substantially ring-shaped core 1 is a toroidal core using a circular ring-shaped ferrite, and its surface is coated with an insulating film.

【0009】複数の巻線2、3は、略リング状コア1に
互いに隔離して巻回されている。巻線2がたとえば1次
巻線であり、巻線3が2次巻線である。端子4a、4
b、5a、5bは、巻線2、3の端部寄りすなわち巻線
2、3の端部の近傍に配置されている。実施の形態では
巻線2、3を巻回した略リング状コア1を載せる四角形
のボビン7のコーナの下面より垂下してボビン7の脚を
兼ねている。ボビン7のコーナの上面は突起6を設け、
略リング状コア1の脱落を防止している。
A plurality of windings 2 and 3 are wound around a substantially ring-shaped core 1 separately from each other. The winding 2 is, for example, a primary winding, and the winding 3 is a secondary winding. Terminals 4a, 4
b, 5a and 5b are arranged near the ends of the windings 2 and 3, that is, near the ends of the windings 2 and 3. In the embodiment, the leg of the bobbin 7 is also suspended from the lower surface of the corner of the rectangular bobbin 7 on which the substantially ring-shaped core 1 on which the windings 2 and 3 are wound is placed. A projection 6 is provided on the upper surface of the corner of the bobbin 7,
The substantially ring-shaped core 1 is prevented from falling off.

【0010】そして、巻線2、3の巻き始めおよび巻き
終わりの端末2a、2b、3a、3bを交差させて端子
4a、4b、5a、5bに接続している。すなわち巻線
2の巻き始め端末2aと巻き終わり端末2bは略リング
状コア1に巻回された後クロスさせ、巻き始め端末2a
は巻線2の巻き終わり側にある端子4bに、また巻き終
わり端末2bは巻き始め側の端子4aに接続する。同様
に巻線3の巻き始め端末3aと巻き終わり端末3bも略
リング状コア1に巻回された後クロスさせ、巻き始め端
末3aを巻線2の巻き終わり側にある端子5bに、また
巻き終わり端末3bを巻き始め側の端子5aに接続す
る。このように接続すると、巻き始めの端末2a(3
a)と巻き終わりの端末2b(3b)の互いの張力によ
り、略リング状コア1に巻回された巻線2(3)はそれ
ぞれ軸方向に収縮力を受け密に収縮したコイル状となっ
て軸方向の伸長が防止され、結果として複数の巻線2、
3間の間隔とくに略リング状コア1の内径部側の絶縁間
隔を確保できる。
The terminals 2a, 2b, 3a, 3b at the beginning and end of winding of the windings 2, 3 are crossed and connected to terminals 4a, 4b, 5a, 5b. That is, the winding start terminal 2a and the winding end terminal 2b of the winding 2 are wound around the substantially ring-shaped core 1 and then crossed to form a winding start terminal 2a.
Is connected to the terminal 4b on the winding end side of the winding 2, and the winding end terminal 2b is connected to the terminal 4a on the winding start side. Similarly, the winding start terminal 3a and the winding end terminal 3b of the winding 3 are crossed after being wound on the substantially ring-shaped core 1, and the winding start terminal 3a is wound on the terminal 5b on the winding end side of the winding 2 again. The end terminal 3b is connected to the terminal 5a on the winding start side. With this connection, the terminal 2a (3
Due to the mutual tension of the terminal a and the end 2b (3b) at the end of the winding, the windings 2 (3) wound around the substantially ring-shaped core 1 each receive a contracting force in the axial direction to form a densely contracted coil. To prevent axial elongation, resulting in a plurality of windings 2,
3, particularly an insulation interval on the inner diameter side of the substantially ring-shaped core 1 can be secured.

【0011】第1の実施の形態によれば、互いに交差し
た巻き始め端末2a、3aおよび巻き終わり端末2b、
3bの張力により巻線2、3がその軸方向に縮められる
ので、仕切板を用いずに複数の巻線2、3間の絶縁距離
の確保が容易にでき、仕切板を必要としないため部品点
数および製造工程の削減が可能となる。とくに略リング
状コア1の内径の小さいものにおいて効果が大きい。
According to the first embodiment, winding start terminals 2a, 3a and winding end terminals 2b, which cross each other,
Since the windings 2 and 3 are contracted in the axial direction by the tension of 3b, the insulation distance between the plurality of windings 2 and 3 can be easily secured without using a partition plate. Points and manufacturing steps can be reduced. The effect is particularly large in the case where the inner diameter of the substantially ring-shaped core 1 is small.

【0012】また絶縁樹脂コーティングされた略リング
状コア1への巻線2、3も略リング状コア1の小型化に
適しているため効果が大きい。この発明の第2の実施の
形態を図3および図4により説明する。すなわち、この
トランスは、第1の実施の形態において、巻線の巻き始
め端末2a、3aと巻き終わり端末2b、3bをクロス
させる部分を固定保持するため、ボビン7に巻線端末誘
導兼保持用のX字状のクロス溝8を設けている。
Also, the windings 2 and 3 around the substantially ring-shaped core 1 coated with the insulating resin are suitable for the downsizing of the substantially ring-shaped core 1, so that the effect is large. A second embodiment of the present invention will be described with reference to FIGS. That is, in the first embodiment, in order to fix and hold a portion where the winding start terminals 2a, 3a and the winding end terminals 2b, 3b cross in the first embodiment, the bobbin 7 has a winding terminal guiding and holding device. X-shaped cross groove 8 is provided.

【0013】このように、ボビン7にクロス溝8を設け
ることにより、巻線端末2a、2b、3a、3bの位置
決め固定が容易になる。その他は第1の実施の形態と同
様である。この発明の第3の実施の形態を図5および図
6により説明する。すなわち、このトランスが第1の実
施の形態と異なる点は、3本の巻線2、3、9が設けら
れた場合であり、6個の端子4a、4b、5a、5b、
10a、10bが各巻線2、3、9の端部寄りの位置す
なわち端部近傍の位置に配設されている。また各巻線
2、3、9の端末2a、2b、3a、3b、9a、0b
がクロスされて第1の実施の形態と同様に端子4a、4
b、5a、5b、10a、10bに接続されている。そ
の他は、第1の実施の形態と同様である。
By providing the cross grooves 8 on the bobbin 7, the winding ends 2a, 2b, 3a, 3b can be easily positioned and fixed. Others are the same as in the first embodiment. A third embodiment of the present invention will be described with reference to FIGS. That is, this transformer differs from the first embodiment in that three windings 2, 3, and 9 are provided, and six terminals 4a, 4b, 5a, 5b,
10a and 10b are disposed at positions near the ends of the windings 2, 3, and 9, that is, at positions near the ends. The terminals 2a, 2b, 3a, 3b, 9a, 0b of the windings 2, 3, 9
Are crossed and the terminals 4a, 4a, 4
b, 5a, 5b, 10a, and 10b. Others are the same as in the first embodiment.

【0014】[0014]

【発明の効果】請求項1記載の電磁装置によれば、互い
に交差した巻き始め端末および巻き終わり端末の張力に
より巻線がその軸方向に縮められるので、仕切板を用い
ずに複数の巻線間の絶縁距離の確保が容易にでき、仕切
板を必要としないため部品点数および製造工程の削減が
可能となる。とくに略リング状コアの内径の小さいもの
において効果が大きい。
According to the first aspect of the present invention, since the winding is contracted in the axial direction by the tension at the winding start terminal and the winding end terminal crossing each other, a plurality of windings can be formed without using a partition plate. The insulation distance between them can be easily ensured, and a partition plate is not required, so that the number of parts and the number of manufacturing steps can be reduced. The effect is particularly large in the case where the inner diameter of the substantially ring-shaped core is small.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の第1の実施の形態の側面図である。FIG. 1 is a side view of a first embodiment of the present invention.

【図2】その平面図である。FIG. 2 is a plan view thereof.

【図3】第2の実施の形態のボビンの側面図である。FIG. 3 is a side view of a bobbin according to a second embodiment.

【図4】そのトランスの側面図である。FIG. 4 is a side view of the transformer.

【図5】第3の実施の形態の平面図である。FIG. 5 is a plan view of a third embodiment.

【図6】その側面図である。FIG. 6 is a side view thereof.

【図7】従来例の平面図である。FIG. 7 is a plan view of a conventional example.

【図8】その側面図である。FIG. 8 is a side view thereof.

【符号の説明】[Explanation of symbols]

1 略リング状コア 2 巻線 2a、2b 端末 3 巻線 3a、3b 端末 4a、4b 端子 5a、5b 端子 7 ボビン 9 巻線 9a、9b 端末 10a、10b 端子 Reference Signs List 1 substantially ring-shaped core 2 winding 2a, 2b terminal 3 winding 3a, 3b terminal 4a, 4b terminal 5a, 5b terminal 7 bobbin 9 winding 9a, 9b terminal 10a, 10b terminal

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 略リング状コアと、この略リング状コア
に互いに隔離して巻回された複数の巻線と、前記巻線の
端部寄りに設けられた端子とを備え、前記巻線の巻き始
めおよび巻き終わりの端末を交差させて前記端子に接続
したことを特徴とする電磁装置。
1. A winding comprising: a substantially ring-shaped core; a plurality of windings wound around the substantially ring-shaped core separately from each other; and a terminal provided near an end of the winding. An electromagnetic device characterized in that the terminals at the beginning and end of the winding are crossed and connected to the terminal.
JP32275297A 1997-11-25 1997-11-25 Electromagnetic device Expired - Fee Related JP3584707B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32275297A JP3584707B2 (en) 1997-11-25 1997-11-25 Electromagnetic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32275297A JP3584707B2 (en) 1997-11-25 1997-11-25 Electromagnetic device

Publications (2)

Publication Number Publication Date
JPH11162748A true JPH11162748A (en) 1999-06-18
JP3584707B2 JP3584707B2 (en) 2004-11-04

Family

ID=18147256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32275297A Expired - Fee Related JP3584707B2 (en) 1997-11-25 1997-11-25 Electromagnetic device

Country Status (1)

Country Link
JP (1) JP3584707B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106458198A (en) * 2014-04-29 2017-02-22 克诺尔有限公司 Coil device for an electromagnetic track brake for a rail vehicle, magnetic track brake for a rail vehicle, and method for mounting at least one connection cable of a coil of an electromagnetic track brake for a rail vehicle
JP2021125556A (en) * 2020-02-05 2021-08-30 Necマグナスコミュニケーションズ株式会社 Split type current transformer and case for split type current transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106458198A (en) * 2014-04-29 2017-02-22 克诺尔有限公司 Coil device for an electromagnetic track brake for a rail vehicle, magnetic track brake for a rail vehicle, and method for mounting at least one connection cable of a coil of an electromagnetic track brake for a rail vehicle
US11440569B2 (en) 2014-04-29 2022-09-13 Knorr-Bremse Gesellschaft Mit Beschrankter Haftung Coil device for an electromagnetic track brake for a rail vehicle, magnetic track brake for a rail vehicle, and method for mounting at least one connection cable of a coil of an electromagnetic track brake for a rail vehicle
JP2021125556A (en) * 2020-02-05 2021-08-30 Necマグナスコミュニケーションズ株式会社 Split type current transformer and case for split type current transformer

Also Published As

Publication number Publication date
JP3584707B2 (en) 2004-11-04

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