JP3501633B2 - Electromagnetic device - Google Patents
Electromagnetic deviceInfo
- Publication number
- JP3501633B2 JP3501633B2 JP24378697A JP24378697A JP3501633B2 JP 3501633 B2 JP3501633 B2 JP 3501633B2 JP 24378697 A JP24378697 A JP 24378697A JP 24378697 A JP24378697 A JP 24378697A JP 3501633 B2 JP3501633 B2 JP 3501633B2
- Authority
- JP
- Japan
- Prior art keywords
- columnar
- leg
- coil
- columnar portion
- coil bobbin
- 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.)
- Expired - Fee Related
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、フェライトコア
を有する電磁装置に関するものである。TECHNICAL FIELD The present invention relates to a ferrite core.
The present invention relates to an electromagnetic device having .
【０００２】[0002]
【従来の技術】従来例を図４ないし図６に示す。すなわ
ち、このフェライトコアは、コイルボビン７０の筒部７
１に挿入される柱状部７２と、この柱状部７２の一端か
ら柱状部７２に略直交する方向へ突出する接続部７３
と、この接続部７３の先端から柱状部７２と平行かつ同
方向に延出する脚部７４とを備えている。コイルボビン
７０は筒部７１の両端のフランジから径方向の外方に延
出した延出部７８を有し、延出部７８の先端に筒部７１
と平行な溝形の保持部７７を有する。７５はコイルボビ
ン７０の筒部７１の外周に巻装したコイル、７６は筒部
７１の一端部に形成した１次コイルを巻装した１次ボビ
ンである。2. Description of the Related Art Conventional examples are shown in FIGS. That is, this ferrite core is used for the cylindrical portion 7 of the coil bobbin 70.
1 and a connecting portion 73 protruding from one end of the columnar portion 72 in a direction substantially orthogonal to the columnar portion 72.
And a leg portion 74 extending in the same direction as the columnar portion 72 from the tip of the connecting portion 73. The coil bobbin 70 has an extending portion 78 that extends outward in the radial direction from the flanges at both ends of the cylindrical portion 71, and the cylindrical portion 71 is provided at the tip of the extending portion 78.
It has a groove-shaped holding portion 77 parallel to. Reference numeral 75 is a coil wound around the outer circumference of the tubular portion 71 of the coil bobbin 70, and 76 is a primary bobbin wound with a primary coil formed at one end of the tubular portion 71.
【０００３】コイルボビン７０の保持部７７にそれぞれ
一対のフェライトコアの脚部７４を圧入嵌合することに
より、柱状部７２が筒部７１に略同心に遊嵌され保持さ
れる。また脚部７４の端面同士がギャップを介して相対
向する。このフェライトコアは、図６に示すように圧粉
成形により製造されるが、成形後にフェライトコアの外
側Ａから冷却が始まる。その際に収縮が起こり、接続部
７３および脚部７４に外側Ａに引っ張る収縮力Ｐ1 〜Ｐ
3 が発生するが、肉厚の一番厚い部分であるところの脚
部７４と接続部７３のコーナ部の冷却が最も遅れること
により、接続部７３と脚部７４の内側Ｂのコーナ部が収
縮力Ｐ2 により矢印の方向に引っ張られるため、脚部７
４の先端が柱状部７２に接近するように脚部７４が倒
れ、図５に示すように柱状部７２と脚部７４とが平行で
なくなる。By press-fitting a pair of ferrite core leg portions 74 into the holding portions 77 of the coil bobbin 70, the columnar portion 72 is loosely fitted and held in the tubular portion 71 substantially concentrically. In addition, the end surfaces of the leg portions 74 face each other through the gap. This ferrite core is manufactured by powder compaction as shown in FIG. 6, but cooling starts from the outside A of the ferrite core after molding. At that time, contraction occurs, and the contracting forces P 1 to P pulling the connecting portion 73 and the leg portion 74 to the outside A.
3 occurs, but the cooling of the corner portion of the leg portion 74 and the connecting portion 73, which is the thickest portion, is delayed most, so that the corner portion of the inner portion B of the connecting portion 73 and the leg portion 74 contracts. The leg portion 7 is pulled by the force P 2 in the direction of the arrow.
The leg portion 74 falls so that the tip of the column 4 approaches the columnar portion 72, and the columnar portion 72 and the leg portion 74 are not parallel to each other as shown in FIG.
【０００４】[0004]
【発明が解決しようとする課題】脚部７４が倒れると、
コイルボビン７０への嵌合が難しくなり、組立の効率が
悪くなったり、嵌合できずに不良品となり歩留りが悪く
なった。さらに脚部７４によるコイルボビン７０との嵌
合のとき、脚部７４の倒れにより柱状部７２とコイルボ
ビン７０の筒部７１が偏心し、コイル７５との絶縁距離
にばらつきが生じ、品質が安定しなかった。When the leg portion 74 falls down,
Fitting into the coil bobbin 70 became difficult, assembly efficiency deteriorated, and fitting failed, resulting in a defective product and poor yield. Further, when the leg portion 74 is fitted to the coil bobbin 70, the column portion 72 and the cylinder portion 71 of the coil bobbin 70 are eccentric due to the fall of the leg portion 74, and the insulation distance between the coil 75 and the coil 75 varies, resulting in unstable quality. It was
【０００５】 このため、フェライトコアを試作し、倒
れ寸法を測定して金型を修正し、倒れを抑制したフェラ
イトコアを完成するというステップが必要となり、開発
期間が長期化しコストアップになった。したがって、こ
の発明の目的は、脚部の成形による倒れを防止すること
ができる電磁装置を提供することである。For this reason, it is necessary to make a prototype of a ferrite core, measure the collapse dimension, correct the mold, and complete the ferrite core in which the collapse is suppressed, which lengthens the development period and increases the cost. Therefore, an object of the present invention is to provide an electromagnetic device that can prevent the legs from falling due to molding.
【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、コイルボビンとフェライトコアとコイルとを備え、
前記フェライトコアが前記コイルボビンに挿入される柱
状部と、この柱状部の一端から前記柱状部に略直交する
方向へ突出する接続部と、この接続部の先端から前記柱
状部と平行かつ同方向に延出する脚部とを備え、前記接
続部と前記脚部とのなす角度を維持する補強部を設けた
ものであり、前記コイルボビンが前記柱状部を遊嵌する
筒部を有し、前記筒部の両端に前記柱状部の端部外周を
被覆するように軸方向に延出するフランジを有し、前記
フランジより径方向の外方に延出して前記接続部の側面
を被覆する延出部を有し、前記延出部より前記軸方向の
内方に延びて脚部を圧入嵌合する溝形の保持部を有し、
前記フランジ間の前記筒部の外周に前記コイルを巻装し
たことを特徴とするものである。An electromagnetic device according to claim 1 is provided with a coil bobbin, a ferrite core and a coil.
A columnar portion into which the ferrite core is inserted into the coil bobbin, a connecting portion protruding from one end of the columnar portion in a direction substantially orthogonal to the columnar portion, and a tip end of the connecting portion in parallel with and in the same direction as the columnar portion. And a reinforcing portion for maintaining an angle formed by the connecting portion and the leg portion, wherein the coil bobbin loosely fits the columnar portion.
A tubular portion, and the outer circumference of the end portion of the columnar portion is provided at both ends of the tubular portion.
Having a flange extending axially to cover,
Sides of the connection part that extend radially outward from the flange
Has an extending portion that covers, in the axial direction from the extending portion.
It has a groove-shaped holding part that extends inward and press-fits the legs.
Winding the coil around the outer circumference of the tubular portion between the flanges
It is characterized in that the.
【０００７】 請求項１記載の電磁装置によれば、接続
部と脚部のなす角度を維持する補強部を設けることによ
り、脚部の成形による倒れを防止することが可能とな
る。このため、コイルボビンへの嵌合が容易となり組立
効率と歩留りが向上する。さらに柱状部を遊嵌させる筒
部を有し脚部を保持する保持部を有するコイルボビンに
このフェライトコアを適用する場合、脚部が保持部に保
持されるときに脚部が柱状部側に倒れることなく柱状部
と平行に維持されているので、柱状部とコイルボビンの
筒部が偏心することなく遊嵌でき、コイルとの絶縁距離
を一様にでき、安定した品質の電磁装置を提供できる。According to the electromagnetic device of the first aspect, by providing the reinforcing portion that maintains the angle formed by the connecting portion and the leg portion, it is possible to prevent the leg portion from falling due to molding. For this reason, fitting to the coil bobbin is facilitated, and assembly efficiency and yield are improved. Further, when this ferrite core is applied to a coil bobbin having a holding portion for holding the leg portion and a tubular portion for loosely fitting the column portion, when the leg portion is held by the holding portion, the leg portion falls to the column portion side. Since it is maintained in parallel with the columnar portion, the columnar portion and the tubular portion of the coil bobbin can be loosely fitted without eccentricity, the insulation distance from the coil can be made uniform, and an electromagnetic device of stable quality can be provided.
【０００８】 請求項２記載の電磁装置は、請求項１に
おいて、前記補強部を前記脚部の前記柱状部に対向する
面の両側に前記柱状部と平行に設けた一対の突条とした
ものである。請求項２記載の電磁装置によれば、請求項
１と同様な効果のほか、脚部の倒れをより一層確実に防
止できるとともに、一対の突条を脚部の両側に設けるこ
とにより厚さ方向が大きくなるので断面積を変えること
なく幅方向を短縮することができるとともに、単一の突
条よりもコイルに接近できるので、安定した品質でより
一層小型化した電磁装置が可能となる。An electromagnetic device according to a second aspect is the electromagnetic device according to the first aspect, wherein the reinforcing portion is a pair of protrusions provided on both sides of a surface of the leg portion facing the columnar portion in parallel with the columnar portion. Is. According to the electromagnetic device of the second aspect, in addition to the same effect as the first aspect, it is possible to more surely prevent the leg portion from collapsing, and by providing the pair of protrusions on both sides of the leg portion, a thickness direction is obtained. Since the width is increased, the width direction can be shortened without changing the cross-sectional area, and the coil can be approached rather than a single ridge, so that an electromagnetic device of stable quality and further downsized can be realized.
【０００９】[0009]
【発明の実施の形態】この発明の第１の実施の形態を適
用した電磁装置を図１および図２により説明する。すな
わち、このフェライトコアはＲＵ型コアを用い、柱状部
１と、接続部２と、脚部３とを有する。柱状部１はコイ
ルボビン４の筒部５に挿入されるものであり、実施の形
態では円柱状である。接続部２は、柱状部１の一端から
柱状部１に略直交する方向へ突出しており、実施の形態
は断面角形で柱状部１の後端部から径方向の外方に延び
ている。脚部３は、接続部２の先端から柱状部１と平行
かつ同方向に延出するもので、実施の形態は断面略角形
である。さらに補強部６を、接続部２と脚部３とのなす
角度を維持するために設けており、実施の形態では脚部
３の柱状部１に対向する面３ａで柱状部１と平行に一対
設けた補強リブとなる突条６ａ，６ｂとし、これらを脚
部３の両側に形成し、一対の突条６ａ，６ｂ間の突条部
１に対向する面３ａを断面略円弧状の凹面に形成してい
る。この一対の突条６ａ，６ｂが、脚部３が倒れようと
する力に対する支えとなるので、脚部３の倒れを防ぐこ
とが可能となる。この場合、図２（ｂ）の補強部６がな
い脚部３と比較して、図２（ａ）のように脚部３の厚さ
が大きくなるが、図２（ａ），（ｂ）に斜線で示す脚部
３の断面積Ｓ1 ，Ｓ2 がほぼ同じになるように、幅寸法
βを図２（ｂ）の幅寸法αよりも小さくしている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An electromagnetic device to which a first embodiment of the present invention is applied will be described with reference to FIGS. 1 and 2. That is, this ferrite core uses a RU type core and has a columnar portion 1, a connecting portion 2, and a leg portion 3. The columnar portion 1 is to be inserted into the cylindrical portion 5 of the coil bobbin 4, and has a cylindrical shape in the embodiment. The connecting portion 2 projects from one end of the columnar portion 1 in a direction substantially orthogonal to the columnar portion 1, and in the embodiment, the connecting portion 2 has a rectangular cross section and extends radially outward from the rear end portion of the columnar portion 1. The leg portion 3 extends from the tip of the connecting portion 2 in parallel with and in the same direction as the columnar portion 1, and the embodiment has a substantially rectangular cross section. Further, a reinforcing portion 6 is provided in order to maintain the angle formed between the connecting portion 2 and the leg portion 3. In the embodiment, a pair of reinforcing portions 6 are provided in parallel with the columnar portion 1 on the surface 3a of the leg portion 3 facing the columnar portion 1. Provided are ribs 6a and 6b which serve as reinforcing ribs, which are formed on both sides of the leg portion 3, and the surface 3a between the pair of ribs 6a and 6b facing the rib 1 is formed into a concave surface having a substantially arcuate cross section. Is forming. Since the pair of ridges 6a and 6b support the leg portion 3 against the force of falling, it is possible to prevent the leg portion 3 from falling. In this case, as compared with the leg portion 3 without the reinforcing portion 6 of FIG. 2B, the leg portion 3 has a larger thickness as shown in FIG. 2A, but FIGS. The width dimension β is set to be smaller than the width dimension α in FIG. 2B so that the cross-sectional areas S 1 and S 2 of the leg portions 3 indicated by diagonal lines are substantially the same.
【００１０】実施の形態では、一対のフェライトコア１
０を電磁装置である高圧トランスに適用しており、コイ
ルボビン４は柱状部１を遊嵌する筒部５を有し、筒部５
の両端にフランジ７，８を有し、フランジ７，８の間の
筒部５の外周にコイル９を巻装している。また筒部５の
一端のフランジ８の内側に１次側フランジ１１を設けフ
ランジ８と１次側フランジ１１との間に１次コイルを設
けている。また筒部５の両端のフランジ７，８より径方
向の外方に延出した延出部１２を有し、延出部１２より
軸方向に延びた溝形の保持部１３を設け、保持部１３に
脚部３を圧入嵌合することにより、フェライトコア１０
をコイルボビン４に保持し、それにより柱状部１を筒部
５に同心に遊嵌し保持している。In the embodiment, a pair of ferrite cores 1
0 is applied to a high-voltage transformer which is an electromagnetic device, and the coil bobbin 4 has a tubular portion 5 into which the columnar portion 1 is loosely fitted.
Has flanges 7 and 8 at both ends thereof, and a coil 9 is wound around the outer periphery of the tubular portion 5 between the flanges 7 and 8. Further, a primary side flange 11 is provided inside the flange 8 at one end of the tubular portion 5, and a primary coil is provided between the flange 8 and the primary side flange 11. Further, it has an extending portion 12 that extends outward in the radial direction from the flanges 7 and 8 at both ends of the tubular portion 5, and a groove-shaped holding portion 13 that extends in the axial direction from the extending portion 12 is provided. When the leg portion 3 is press-fitted and fitted to the ferrite core 13, the ferrite core 10
Is held by the coil bobbin 4, and thereby the columnar portion 1 is concentrically loosely fitted and held in the tubular portion 5.
【００１１】この実施の形態によれば、接続部２と脚部
３のなす角度を維持する補強部６を設けることにより、
脚部３の成形による倒れを防止することが可能となる。
このため、コイルボビン４への嵌合が容易となり組立効
率と歩留りが向上する。さらに柱状部１を遊嵌させる筒
部４を有し、脚部３を保持する保持部１３を有するコイ
ルボビン４にこのフェライトコアを適用しているため、
脚部３が保持部１３に保持されるときに脚部３が柱状部
１側に倒れることなく柱状部１と平行に維持されている
ので、柱状部１とコイルボビン４の筒部５が偏心するこ
となく遊嵌でき、このためコイル９との絶縁距離を一様
にでき、安定した品質の電磁装置を提供できる。According to this embodiment, by providing the reinforcing portion 6 for maintaining the angle formed by the connecting portion 2 and the leg portion 3,
It is possible to prevent the leg 3 from falling due to molding.
Therefore, the coil bobbin 4 can be easily fitted, and the assembling efficiency and the yield are improved. Further, since the ferrite core is applied to the coil bobbin 4 that has the tubular portion 4 into which the columnar portion 1 is loosely fitted and has the holding portion 13 that holds the leg portion 3,
When the leg portion 3 is held by the holding portion 13, the leg portion 3 is maintained parallel to the columnar portion 1 without falling to the side of the columnar portion 1, so that the columnar portion 1 and the tubular portion 5 of the coil bobbin 4 are eccentric. It is possible to loosely fit the coil 9 without making it possible to make the insulation distance from the coil 9 uniform and to provide an electromagnetic device of stable quality.
【００１２】また補強部６を脚部３の柱状部１に対向す
る面３ａで柱状部１と平行に一対設けられた突条６ａ，
６ｂとしたため、脚部３の倒れをより一層確実に防止で
きるとともに、一対の突条６ａ，６ｂを脚部３の両側に
設けることにより厚さ方向が大きくなるので断面積Ｓ2
を補強部６のない脚部の断面積Ｓ1 に対して変えること
なく幅寸法βを短縮することができるとともに、単一の
突条よりもコイル９に接近できるので、電気特性が同等
の安定した品質でより一層小型化した電磁装置が可能と
なる。A pair of ridges 6a are provided on the surface 3a of the leg portion 3 facing the columnar portion 1 in parallel with the columnar portion 1, and the reinforcing portion 6 is provided on the surface 3a.
Since it is 6b, the fall of the leg portion 3 can be more surely prevented, and by providing the pair of protrusions 6a and 6b on both sides of the leg portion 3, the thickness direction becomes large, so that the sectional area S 2
The width dimension β can be shortened without changing with respect to the cross-sectional area S 1 of the leg portion without the reinforcing portion 6 and the coil 9 can be closer to the coil 9 than a single ridge, so that the electrical characteristics are stable. It is possible to realize a more compact electromagnetic device with improved quality.
【００１３】この発明の第２の実施の形態を図３に示
す。すなわち、このフェライトコアは、補強部６を脚部
３の柱状部１に対向した面３ａの中央で柱状部１に平行
な１本の突条により形成している。その他の構成および
作用効果は第１の実施の形態と同様である。A second embodiment of the present invention is shown in FIG. That is, in this ferrite core, the reinforcing portion 6 is formed by one ridge parallel to the columnar portion 1 at the center of the surface 3a of the leg portion 3 facing the columnar portion 1. Other configurations and operational effects are similar to those of 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、接続
部と脚部のなす角度を維持する補強部を設けることによ
り、脚部の成形による倒れを防止することが可能とな
る。このため、コイルボビンへの嵌合が容易となり組立
効率と歩留りが向上する。さらに柱状部を遊嵌させる筒
部を有し脚部を保持する保持部を有するコイルボビンに
このフェライトコアを適用する場合、脚部が保持部に保
持されるときに脚部が柱状部側に倒れることなく柱状部
と平行に維持されているので、柱状部とコイルボビンの
筒部が偏心することなく遊嵌でき、コイルとの絶縁距離
を一様にでき、安定した品質の電磁装置を提供できる。According to the electromagnetic device of the first aspect, by providing the reinforcing portion for maintaining the angle formed by the connecting portion and the leg portion, it is possible to prevent the leg portion from falling due to molding. For this reason, fitting to the coil bobbin is facilitated, and assembly efficiency and yield are improved. Further, when this ferrite core is applied to a coil bobbin having a holding portion for holding the leg portion and a tubular portion for loosely fitting the column portion, when the leg portion is held by the holding portion, the leg portion falls to the column portion side. Since it is maintained in parallel with the columnar portion, the columnar portion and the tubular portion of the coil bobbin can be loosely fitted without eccentricity, the insulation distance from the coil can be made uniform, and an electromagnetic device of stable quality can be provided.
【００１５】 請求項２記載の電磁装置によれば、請求
項１と同様な効果のほか、脚部の倒れをより一層確実に
防止できるとともに、一対の突条を脚部の両側に設ける
ことにより厚さ方向が大きくなるので断面積を変えるこ
となく幅方向を短縮することができるとともに、単一の
突条よりもコイルに接近できるので、安定した品質でよ
り一層小型化した電磁装置が可能となる。According to the electromagnetic device of the second aspect, in addition to the same effect as in the first aspect, the fall of the leg portion can be prevented more reliably, and the pair of protrusions are provided on both sides of the leg portion. Since the thickness direction becomes larger, the width direction can be shortened without changing the cross-sectional area, and since it is closer to the coil than a single ridge, a more compact electromagnetic device with stable quality is possible. Become.
【図１】この発明の第１の実施の形態を適用した電磁装
置の分解斜視図である。FIG. 1 is an exploded perspective view of an electromagnetic device to which a first embodiment of the present invention is applied.
【図２】その補強部を有するフェライトコア（ａ）と、
補強部を有しないフェライトコア（ｂ）の正面図であ
る。FIG. 2 is a ferrite core (a) having the reinforcing portion,
It is a front view of the ferrite core (b) which does not have a reinforcement part.
【図３】第２の実施の形態の斜視図である。FIG. 3 is a perspective view of a second embodiment.
【図４】従来例のフェライトコアを適用した電磁装置の
分解斜視図である。FIG. 4 is an exploded perspective view of an electromagnetic device to which a conventional ferrite core is applied.
【図５】そのフェライトコアの脚部の倒れを説明する側
面図である。FIG. 5 is a side view for explaining the fall of the legs of the ferrite core.
【図６】そのフェライトコアの脚部の倒れの原因となる
収縮力を説明する説明図である。FIG. 6 is an explanatory diagram illustrating a contracting force that causes the legs of the ferrite core to fall.
１ 柱状部 ２ 接続部 ３ 脚部 ３ａ 面 ４ コイルボビン ５ 筒部 ６ 補強部 ６ａ，６ｂ 突条 １０ フェライトコア 1 Column 2 connection 3 legs 3a side 4 coil bobbin 5 tube 6 Reinforcement part 6a, 6b ridge 10 Ferrite core
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 規幸 大阪府門真市大字門真1048番地 松下電 工株式会社内 (72)発明者 清水 義彦 兵庫県姫路市西延末404番１号 池田電 機株式会社内 (56)参考文献 特開 平６−267760（ＪＰ，Ａ) 特開 平８−8115（ＪＰ，Ａ) 特開 平５−36546（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 17/00 - 27/42 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriyuki Sato 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Yoshihiko Shimizu, No. 404-1, Nishinobu, Himeji, Hyogo Ikeda Electric Co., Ltd. (56) References JP-A-6-267760 (JP, A) JP-A-8-8115 (JP, A) JP-A-5-36546 (JP, A) (58) Fields investigated (Int. Cl. 7) , DB name) H01F 17/00-27/42
Claims (2)
とを備え、 前記フェライトコアが 前記コイルボビンに挿入される柱
状部と、この柱状部の一端から前記柱状部に略直交する
方向へ突出する接続部と、この接続部の先端から前記柱
状部と平行かつ同方向に延出する脚部とを備え、前記接
続部と前記脚部とのなす角度を維持する補強部を設けた
ものであり、前記コイルボビンが前記柱状部を遊嵌する筒部を有し、
前記筒部の両端に前記柱状部の端部外周を被覆するよう
に軸方向に延出するフランジを有し、前記フランジより
径方向の外方に延出して前記接続部の側面を被覆する延
出部を有し、前記延出部より前記軸方向の内方に延びて
脚部を圧入嵌合する溝形の保持部を有し、前記フランジ
間の前記筒部の外周に前記コイルを巻装した ことを特徴
とする電磁装置。1. A coil bobbin, a ferrite core and a coil
With the door parallel, a columnar portion to which the ferrite core is inserted into the coil bobbin, and a connection portion protruding in a direction generally orthogonal to the columnar portion from one end of the columnar portion, and the columnar portion from the distal end of the connecting portion And a leg portion extending in the same direction, and a reinforcing portion for maintaining an angle formed by the connecting portion and the leg portion is provided, and the coil bobbin has a tubular portion in which the columnar portion is loosely fitted. Then
Both ends of the cylindrical portion should cover the outer circumference of the end of the columnar portion.
Has a flange extending in the axial direction from the flange
An extension that extends outward in the radial direction and covers the side surface of the connection portion.
An extension portion, and extends inward in the axial direction from the extension portion.
It has a groove-shaped holding part that press-fits the legs, and the flange
An electromagnetic device in which the coil is wound around an outer periphery of the tubular portion between .
する面の両側に前記柱状部と平行に設けられた一対の突
条である請求項１記載の電磁装置。2. The electromagnetic device according to claim 1, wherein the reinforcing portion is a pair of ridges provided in parallel with the columnar portion on both sides of a surface of the leg portion facing the columnar portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24378697A JP3501633B2 (en) | 1997-09-09 | 1997-09-09 | Electromagnetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24378697A JP3501633B2 (en) | 1997-09-09 | 1997-09-09 | Electromagnetic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1187144A JPH1187144A (en) | 1999-03-30 |
| JP3501633B2 true JP3501633B2 (en) | 2004-03-02 |
Family
ID=17108951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24378697A Expired - Fee Related JP3501633B2 (en) | 1997-09-09 | 1997-09-09 | Electromagnetic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3501633B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6089824B2 (en) * | 2013-03-15 | 2017-03-08 | 株式会社デンソー | Trance |
-
1997
- 1997-09-09 JP JP24378697A patent/JP3501633B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1187144A (en) | 1999-03-30 |
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