JPH1074644A - Electromagnetic device - Google Patents
Electromagnetic deviceInfo
- Publication number
- JPH1074644A JPH1074644A JP8230496A JP23049696A JPH1074644A JP H1074644 A JPH1074644 A JP H1074644A JP 8230496 A JP8230496 A JP 8230496A JP 23049696 A JP23049696 A JP 23049696A JP H1074644 A JPH1074644 A JP H1074644A
- Authority
- JP
- Japan
- Prior art keywords
- core
- air gap
- shaped core
- shaped
- electromagnetic device
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コアとコイルなど
で構成れる放電灯安定器などの磁気回路に用いる電磁装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic device used for a magnetic circuit such as a discharge lamp ballast including a core and a coil.
【０００２】[0002]
【従来の技術】従来技術について、図７ないし図８を参
照して説明する。2. Description of the Related Art The prior art will be described with reference to FIGS.
【０００３】図７はＥ形コア同士を突合わせて磁気回路
である磁路を構成する電磁装置で、Ｅ形コア５は、けい
素鋼板などからなるＥ形をしたＥ形鋼板６を積層したも
ので、中央に略Ｉ形に形成したＩ形中央脚８と、この中
央脚８の一方端に形成された略コ字形をしたコ字形側脚
９とからなる。FIG. 7 shows an electromagnetic device in which E-shaped cores are joined to each other to form a magnetic circuit which is a magnetic circuit. The E-shaped core 5 is formed by laminating E-shaped steel sheets 6 made of silicon steel or the like. It comprises an I-shaped central leg 8 formed at the center in a substantially I shape, and a substantially U-shaped side leg 9 formed at one end of the central leg 8.
【０００４】前記中央脚８の先端８ａは、コ字形側脚９
の両先端９ａ，９ａより短く形成され、前記Ｅ形コア
５，５同士を突合わせて形成された略日字形コア３の中
央脚８，８間には、エアギャップ部１０である空隙が形
成されている。The tip 8a of the center leg 8 is
A gap, which is an air gap portion 10, is formed between the central legs 8, 8 of the substantially Japanese-shaped core 3 formed shorter than both the front ends 9a, 9a of the E-shaped cores 5, 5 butted together. Have been.
【０００５】コイル１５は、エポキシ材などからなる巻
き枠１６に電線１７を巻回して形成したもので、このコ
イル１５は、前記略日字形コア３の中央脚８，８に挿入
され、それから、コ字形側脚９，９の突合部１２，１２
を電気溶接し、Ｅ形コア５，５同士を接合固定する。[0005] The coil 15 is formed by winding an electric wire 17 around a winding frame 16 made of an epoxy material or the like. The coil 15 is inserted into the center legs 8, 8 of the above-mentioned substantially Japanese-shaped core 3, and then, Butt portions 12, 12 of U-shaped side legs 9, 9
Are electrically welded to join and fix the E-shaped cores 5 and 5 together.
【０００６】図８はＵ形コアとＴ形コアとを組合わせて
磁気回路である磁路を構成した電磁装置で、Ｕ形コア２
０は、けい素鋼板などからなる一方が開口したＵ形をし
たＵ形鋼板２１を積層したもので、Ｕ形コア２０はＵ形
側脚２３を形成している。FIG. 8 shows an electromagnetic device in which a U-shaped core and a T-shaped core are combined to form a magnetic circuit as a magnetic circuit.
Numeral 0 denotes a laminate of U-shaped U-shaped steel plates 21 made of a silicon steel plate or the like and having one opening, and the U-shaped core 20 forms U-shaped side legs 23.
【０００７】Ｔ形コア２５は、けい素鋼板などからなる
Ｔ形をしたＴ形鋼板２６を積層したもので、長手方向に
略Ｉ形に形成されたＩ形中央脚２７と、このＩ形中央脚
２７の一方端に直角形成された略Ｉ形のＩ形側脚２８と
から構成されている。The T-shaped core 25 is formed by laminating a T-shaped T-shaped steel plate 26 made of a silicon steel plate or the like. The T-shaped core 25 has an I-shaped central leg 27 formed substantially in the longitudinal direction and an I-shaped central leg 27. An I-shaped side leg 28 of a substantially I-shape is formed at one end of the leg 27 at a right angle.
【０００８】前記Ｔ形コア２５は、前記Ｕ形コア２０の
開口端に組込まれて略日字形コア３０が形成され、Ｔ形
コア２５の先端２５ａとＵ形コア２０の底面との間に
は、エアギャップ部１０である空隙が形成されている。[0008] The T-shaped core 25 is incorporated into the open end of the U-shaped core 20 to form a substantially Japanese-shaped core 30, and is located between the tip 25 a of the T-shaped core 25 and the bottom surface of the U-shaped core 20. The air gap portion 10 is formed with a gap.
【０００９】コイル１５は、エポキシ材などからなる巻
き枠１６に電線１７を巻回して形成したもので、このコ
イル１５は、前記略日字形コア３０の中央脚２７に挿入
され、それから、Ｔ形コア２５とＵ形コア２０との突合
部３２，３２を電気溶接し、Ｔ形コア２５とＵ形コア２
０とを接合固定する。The coil 15 is formed by winding an electric wire 17 around a winding frame 16 made of an epoxy material or the like. The coil 15 is inserted into the central leg 27 of the above-mentioned substantially Japanese-shaped core 30, and then a T-shaped coil is formed. The butted portions 32, 32 of the core 25 and the U-shaped core 20 are electrically welded, and the T-shaped core 25 and the U-shaped core 2 are welded.
0 is fixedly joined.
【００１０】なお、エアギャップ部は、磁気回路のコア
に発生する磁気の飽和を押える目的で設けられるもので
ある。The air gap is provided for the purpose of suppressing the saturation of magnetism generated in the core of the magnetic circuit.
【００１１】[0011]
【発明が解決しようとする課題】上記のように従来の電
磁装置の磁路を構成するコア中には、磁気飽和を押える
目的で、エアギャップ部が一か所設けらているのが一般
的である。As described above, the core constituting the magnetic path of the conventional electromagnetic device is generally provided with one air gap portion for the purpose of suppressing magnetic saturation. It is.
【００１２】即ち、図７で示すＥ形コア同士を突合わせ
たものでは、中央脚間にエアギャップ部が一か所設けら
れている。That is, in the case where the E-shaped cores shown in FIG. 7 are butted together, one air gap portion is provided between the center legs.
【００１３】さらに、図８に示すＵ形コアとＴ形コアと
を組合わせたものでは、Ｕ形コアの開口端にＴ形コアを
組込み、このＴ形コアのＵ形コアへの押込み量を調整す
るこによって、前記Ｔ形コアの中央脚とＵ形コアの底部
との間にエアギャップ部が一か所設けられている。Further, in the combination of the U-shaped core and the T-shaped core shown in FIG. 8, a T-shaped core is incorporated at the open end of the U-shaped core, and the amount of pushing of the T-shaped core into the U-shaped core is reduced. By adjustment, one air gap is provided between the central leg of the T-shaped core and the bottom of the U-shaped core.
【００１４】上記のように従来の電磁装置には、エアギ
ャップ部が一か所と、コア同士の突合部が２か所形成さ
れ、コア同士の突合部は電気溶接などで接合固定されて
いるが、この突合部の対向するコア間には、微細な空隙
であるエアギャップ部がある。As described above, in the conventional electromagnetic device, one air gap portion and two abutting portions of the cores are formed, and the abutting portions of the cores are joined and fixed by electric welding or the like. However, between the opposing cores of the abutting portion, there is an air gap portion, which is a fine void.
【００１５】このため、突合部に磁束の乱れが生ずると
ともに磁気抵抗が大きくなることにより、磁束の有効利
用が図れないという問題があった。For this reason, there is a problem that the magnetic flux is disturbed at the abutting portion and the magnetic resistance is increased, so that the magnetic flux cannot be effectively used.
【００１６】また、磁気回路を構成するコアの一部に接
合部があるため、積層された鋼板間に微小な隙間が生じ
る場合があり、この場合には、鋼板が上下方向に振動す
ることがある。さらに、対向する突合部の鉄心同士の吸
引力によっても、鋼板に振動が生ずことがあるという問
題があった。Further, since there is a joint in a part of the core constituting the magnetic circuit, a minute gap may be generated between the stacked steel sheets. In this case, the steel sheets may vibrate vertically. is there. Further, there is a problem that vibration may not be generated in the steel plate due to the attraction force between the iron cores of the opposed butting portions.
【００１７】本発明は上記の点に鑑みてなされたもの
で、磁束の有効利用を図るとともに磁路中に存在するコ
アの突合部より生ずる振動を除去する電磁装置を提供す
ることを課題とする。The present invention has been made in view of the above points, and it is an object of the present invention to provide an electromagnetic device for effectively utilizing a magnetic flux and removing a vibration generated from an abutting portion of a core existing in a magnetic path. .
【００１８】[0018]
【課題を解決するための手段】前記課題を達成するため
に、請求項１の電磁装置は、側脚と中央脚とで磁路を形
成するコアとこのコアに装着したコイルとを備え、前記
磁路の１部にエアギャップを設けた電磁装置において、
前記コアは前記側脚を形成する略ロ字形コアと、この略
ロ字形コア内に配置された前記中央脚を形成する略Ｉ形
コアとからなり、前記エアギャップ部には前記略Ｉ形コ
アの両端に非磁性材からなるエアギャップ形成部材を介
在させて形成されたことを特徴とするものである。According to a first aspect of the present invention, there is provided an electromagnetic device comprising: a core forming a magnetic path by a side leg and a center leg; and a coil mounted on the core. In an electromagnetic device having an air gap provided in a part of a magnetic path,
The core comprises a substantially square core forming the side legs, and a substantially I core forming the central leg disposed in the substantially square core. The substantially I core is provided in the air gap portion. Are formed with air gap forming members made of a non-magnetic material interposed at both ends.
【００１９】さらに、請求項２の電磁装置は、前記エア
ギャップ形成部材は、前記略Ｉ形コアの両端に配置さ
れ、これらエアギャップ形成部材に位置決め凸部を外方
に向けてそれぞれ突出形成し、これら位置決め凸部が嵌
合する位置決め凹部を前記ロ字形コア内面に対向してそ
れぞれ形成したことを特徴とするものである。Further, in the electromagnetic device according to the present invention, the air gap forming members are arranged at both ends of the substantially I-shaped core, and positioning projections are formed on these air gap forming members so as to project outward. The positioning recesses into which the positioning projections fit are formed so as to face the inner surface of the square core.
【００２０】上記に記載したように本発明の電磁装置
は、側脚である略ロ字形コアとこの略ロ字形コアの貫通
孔内の長手方向に沿って幅方向中央に配置され、両端に
非磁性材からなるエアギャップ形成部材を取付けた中央
脚である略Ｉ形コアが取付けられる構成になっているた
め、略ロ字形コアと略Ｉ形コアとからなる磁路には、コ
ア同士の突合せ部のない磁路が形成される。As described above, the electromagnetic device of the present invention is arranged at the center in the width direction along the longitudinal direction of the substantially rectangular core which is the side leg and the through hole of the substantially rectangular core, and has the non-terminal at both ends. Since a substantially I-shaped core, which is a center leg to which an air gap forming member made of a magnetic material is attached, is attached, a magnetic path consisting of a substantially square-shaped core and a substantially I-shaped core is joined with each other. A magnetic path without parts is formed.
【００２１】そこで、突合せ部がないことによって、突
合せ部に生ずる磁束の乱れおよび磁気抵抗の発生もなく
磁束の有効利用が図れる。さらに、振動の元となる要因
が排除される。Therefore, the absence of the butting portion enables effective utilization of the magnetic flux without disturbance of the magnetic flux generated at the butting portion and generation of magnetic resistance. In addition, factors that cause vibration are eliminated.
【００２２】[0022]
【発明の実施の形態】以下、図１ないし図６を参照して
本発明の実施の形態を説明する。なお、従来技術と同一
の構成部品は同一の番号を付して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same components as in the prior art will be described with the same reference numerals.
【００２３】図２は本発明に係る電磁装置の各構成部品
を示す斜視図である。FIG. 2 is a perspective view showing each component of the electromagnetic device according to the present invention.
【００２４】電磁装置は、側脚を形成する略ロ字形の略
ロ字形コア４０と、このロ字形コア４０と分離し両端が
それぞれ円弧状凸面４６，４６をなす中央脚を形成する
略Ｉ形の略Ｉ形コア４５とで磁気回路である磁路が形成
されている。The electromagnetic device comprises a substantially rectangular core 40 having a substantially rectangular shape forming side legs, and a substantially I-shape forming a central leg separated from the rectangular core 40 and having both ends forming arc-shaped convex surfaces 46, 46, respectively. And a substantially I-shaped core 45, a magnetic path as a magnetic circuit is formed.
【００２５】さらに、前記略ロ字形コア４０内に配置さ
れ、この略ロ字形コア４０内面と前記略Ｉ形コア４５の
両端との間にエアギャップ部である空隙が形成され、こ
のエアギャップ部内に介在するエアギャップ形成部材５
５，５５と、前記略Ｉ形コア４５に取付けられるコイル
１５とから構成されている。Further, a gap, which is an air gap portion, is formed between the inner surface of the substantially square-shaped core 40 and both ends of the substantially I-shaped core 45. Air gap forming member 5 interposed in
5, 55, and the coil 15 attached to the substantially I-shaped core 45.
【００２６】前記コイル１５は、絶縁材料であるエポキ
シ材などからなり両端に鍔１６ａ，１６ａがそれぞれ形
成された巻き枠１６と、この巻き枠１６に巻回された電
線１７（図３参照）とから構成されている。The coil 15 is made of a winding frame 16 made of an insulating material such as an epoxy material and formed with flanges 16a at both ends, and an electric wire 17 wound around the winding frame 16 (see FIG. 3). It is composed of
【００２７】さらに、前記巻き枠１６の中央には、長手
方向に沿って角柱状の嵌合孔１８が貫通して形成すると
ともに、この嵌合孔１８の下面中央の長手方向に沿って
溝状の係合溝部１９が形成されている。Further, a rectangular column-shaped fitting hole 18 is formed through the center of the winding frame 16 along the longitudinal direction, and a groove is formed along the longitudinal direction at the center of the lower surface of the fitting hole 18. Are formed.
【００２８】前記略Ｉ形コア４５は、けい素鋼板などか
らなる略Ｉ形の略Ｉ形鋼板４７を積層したもので、この
略Ｉ形コア４５は中央脚４８を形成している。この略Ｉ
形コア４５は、前記巻き枠１６の角柱状の嵌合孔１６に
軽嵌合状態で挿入装着されるものである。The substantially I-shaped core 45 is formed by laminating a substantially I-shaped substantially I-shaped steel plate 47 made of a silicon steel plate or the like, and the substantially I-shaped core 45 forms a central leg 48. This I
The shaped core 45 is inserted and mounted in the prismatic fitting hole 16 of the winding frame 16 in a lightly fitted state.
【００２９】前記略ロ字形コア４０は、けい素鋼板など
からなる略ロ字形の略ロ字形鋼板４１を積層したもの
で、この略ロ字形コア４０は略ロ字状の側脚４２を形成
している。The substantially rectangular core 40 is formed by laminating a substantially rectangular steel plate 41 made of a silicon steel plate or the like, and the substantially rectangular core 40 forms a substantially rectangular side leg 42. ing.
【００３０】さらに、前記略ロ字形コア４０の中央に
は、前記コイル１５が組込まれる角柱状の貫通孔４３が
形成されるとともに、この貫通孔４３の長手方向に沿っ
て中央脚である略Ｉ形コア４５の円弧状凸面４６，４６
が略ロ字形コア４０内に喰込むように、略Ｉ形コア４５
が幅方向中央に取付けられている。Further, in the center of the substantially square-shaped core 40, there is formed a prismatic through-hole 43 into which the coil 15 is to be incorporated. Arc-shaped convex surfaces 46 of the shaped core 45
Is substantially I-shaped core 45 so that
Is mounted at the center in the width direction.
【００３１】前記略Ｉ形コア４５の円弧状凸面４６，４
６と略ロ字形コア４０内面との間に円弧状のエアギャッ
プ部である空隙が形成され、これらエアギャップ部に介
在する円弧状のエアギャップ形成部材５５が設けられて
いる。このエアギャップ形成部材５５は、例えば合成樹
脂などの磁性材料以外の材料である非磁性材で作られて
いる。The arc-shaped convex surfaces 46 and 4 of the substantially I-shaped core 45
Air gaps, which are arc-shaped air gap portions, are formed between the inner surface 6 and the inner surface of the substantially square-shaped core 40, and an arc-shaped air gap forming member 55 interposed between these air gap portions is provided. The air gap forming member 55 is made of a non-magnetic material that is a material other than a magnetic material such as a synthetic resin, for example.
【００３２】前記円弧状のエアギャップ部を介して略ロ
字形コア４０内面には、円弧状凹面４４，４４が対向し
てそれぞれ形成されるとともに、これら円弧状凹面４
４，４４の外方に向けてエアギャップ形成部材５５，５
５を位置決め固定する位置決め凹部４４ａ，４４ａが対
向してそれぞれ形成されている。On the inner surface of the substantially rectangular core 40, arcuate concave surfaces 44, 44 are formed opposite to each other with the arcuate air gap therebetween.
Air gap forming members 55, 5
Positioning recesses 44a, 44a for positioning and fixing 5 are formed facing each other.
【００３３】この位置決め凹部４４ａに嵌合する凸状の
位置決め凸部５８が、前記エアギャップ形成部材５５の
外面の外方に向けて突出形成されている。A convex positioning projection 58 fitted into the positioning recess 44a is formed so as to protrude outward from the outer surface of the air gap forming member 55.
【００３４】さらに、前記エアギャップ形成部材５５の
下方端から内方に向けて、前記Ｉ形コア４５の底面に当
接する受け部材５０が突出形成されている。この受け部
材５０の先端から水平に延出して、前記巻き枠１６の嵌
合孔１８下面に形成した係合溝部１９に係合する矩形状
の係合凸部５１が形成されている。Further, a receiving member 50 is formed so as to protrude inward from a lower end of the air gap forming member 55 and abut on the bottom surface of the I-shaped core 45. A rectangular engaging projection 51 extending horizontally from the tip of the receiving member 50 and engaging with the engaging groove 19 formed on the lower surface of the fitting hole 18 of the winding frame 16 is formed.
【００３５】電磁装置の組立て方法を図１ないし図３を
参照して説明する。A method of assembling the electromagnetic device will be described with reference to FIGS.
【００３６】図１に示すように、略Ｉ形コア４５の両端
に形成された円弧状凸面４６，４６が、コイル１５の嵌
合孔１８の両端から突出する状態で、略Ｉ形コア４５が
コイル１５の嵌合孔１８に嵌合して取付けられる。As shown in FIG. 1, the arc-shaped convex surfaces 46, 46 formed at both ends of the substantially I-shaped core 45 project from both ends of the fitting hole 18 of the coil 15, and the substantially I-shaped core 45 is It is fitted and fitted in the fitting hole 18 of the coil 15.
【００３７】それから、前記エアギャップ形成部材５５
の係合凸部５１を巻き枠１６の下面に形成した係合溝部
１９に係合させて、このエアギャップ形成部材５５を巻
き枠１６側に押込み、略Ｉ形コア４５の円弧状凸面４６
に当接させて、コイル１５に取付ける。Then, the air gap forming member 55
Is engaged with the engaging groove 19 formed on the lower surface of the reel 16, and the air gap forming member 55 is pushed toward the reel 16, and the arc-shaped convex surface 46 of the substantially I-shaped core 45 is formed.
And attached to the coil 15.
【００３８】なお、前記エアギャップ形成部材５５の位
置決め凸部５８は、中央脚である略Ｉ形コア４５の長手
方向に沿って幅方向中央に取付けられた状態となる。The positioning projection 58 of the air gap forming member 55 is mounted at the center in the width direction along the longitudinal direction of the substantially I-shaped core 45 as the central leg.
【００３９】図１および図３に示すように、コイル１５
の両端に組込んだエアギャップ形成部材５５，５５の位
置決め凸部５８，５８を略ロ字形コア４０の位置決め凹
部４４ａ，４４ａにそれぞれ上方から押込み嵌合して組
立てる。As shown in FIG. 1 and FIG.
The positioning projections 58, 58 of the air gap forming members 55, 55 incorporated at both ends of the core are pushed into the positioning recesses 44a, 44a of the substantially rectangular core 40 from above, respectively, and assembled.
【００４０】図３に示すように、中央脚である略Ｉ形コ
ア４５の両端に形成された円弧状凸面４６，４６と側脚
である略ロ字形コア４０の円弧状凹面４４，４４との間
に形成されたエアギャップ部１０，１０の中央部にはエ
アギャップ形成部材５５，５５が介在し、このエアギャ
ップ形成部材５５，５５の両側には、空気からなるエア
ギャップ部がそれぞれ形成されている。As shown in FIG. 3, arcuate convex surfaces 46, 46 formed at both ends of a substantially I-shaped core 45 as a central leg and arcuate concave surfaces 44, 44 of a substantially U-shaped core 40 as a side leg. Air gap forming members 55, 55 are interposed at the central portions of the air gap portions 10, 10 formed therebetween, and air gap portions made of air are formed on both sides of the air gap forming members 55, 55, respectively. ing.
【００４１】なお、上記においては、エアギャップ形成
部材の両側には、空気からなるエアギャップ部がそれぞ
れ形成されているもので説明をしたが、図４ないし図５
に示すように、エアギャップ形成部材５５の幅は、略Ｉ
形コア４５の幅と略同一に形成することにより、エアギ
ャップ部は、エアギャップ形成部材５５，５５を介在し
た非磁性材からそれぞれ形成したものであってもよい。In the above description, air gap portions made of air are formed on both sides of the air gap forming member.
As shown in FIG. 5, the width of the air gap forming member 55 is substantially I
The air gap portion may be formed from a non-magnetic material with the air gap forming members 55 and 55 interposed therebetween by being formed to have substantially the same width as the shape core 45.
【００４２】また、エアギャップ形成部材の固定方法
は、図６に示すように、略ロ字形コア４０の端部に挟み
込む方法であってもよい。As shown in FIG. 6, the method of fixing the air gap forming member may be a method of sandwiching the air gap forming member between the ends of the substantially square-shaped core 40.
【００４３】具体的には、エアギャップ形成部材５５に
位置決め凸部５８を形成するとともに、このエアギャッ
プ形成部材５５の上下端から外方にそれぞれ水平に挟持
片６０，６０を対向してそれぞれ形成する。この挟持片
６０，６０間は、略ロ字形コア４０の厚み方向に係合で
きる寸法になっている。More specifically, a positioning projection 58 is formed on the air gap forming member 55, and holding pieces 60, 60 are formed horizontally outward from upper and lower ends of the air gap forming member 55, respectively. I do. The space between the sandwiching pieces 60 is sized to engage in the thickness direction of the substantially square core 40.
【００４４】エアギャップ形成部材５５の略ロ字形コア
４０の取付け方法を記載する。A method of attaching the substantially square core 40 of the air gap forming member 55 will be described.
【００４５】エアギャップ形成部材５５を略ロ字形コア
４０の貫通孔４３内に配置したのち、エアギャップ形成
部材５５の挟持片６０，６０内面を略ロ字形コア４０の
厚み方向に移動すると、挟持片６０，６０内面が略ロ字
形コア４０の上下面に摺接しつつ移動し、エアギャップ
形成部材５５の位置決め凸部５８が略ロ字形コア４０の
位置決め凹部４４ａに嵌合して略ロ字形コア４０に取付
けられる。それから、コア１５を取付けた中央脚である
略Ｉ形コア４５をエアギャップ形成部材５５，５５の内
面間に嵌合するように挿入嵌合して取付け、電磁装置の
組立てを行う。After the air gap forming member 55 is disposed in the through hole 43 of the substantially square core 40, the holding pieces 60, 60 of the air gap forming member 55 are moved in the thickness direction of the substantially square core 40 to hold the air gap forming member 55. The inner surfaces of the pieces 60, 60 move while sliding on the upper and lower surfaces of the substantially square-shaped core 40, and the positioning projections 58 of the air gap forming member 55 are fitted into the positioning recesses 44 a of the substantially square-shaped core 40, so that the substantially square-shaped core is formed. Attached to 40. Then, the substantially I-shaped core 45, which is the central leg to which the core 15 is attached, is inserted and fitted so as to be fitted between the inner surfaces of the air gap forming members 55, 55, and the electromagnetic device is assembled.
【００４６】上記実施の形態の作用を説明する。The operation of the above embodiment will be described.
【００４７】本発明の電磁装置は、側脚である略ロ字形
コアとこの略ロ字形コアの貫通孔内の長手方向に沿って
幅方向中央に配置され、両端に非磁性材からなるエアギ
ャップ形成部材が取付けられた中央脚である略Ｉ形コア
を取付ける。なお、この略Ｉ形コアには、コイルが取付
けられている。The electromagnetic device according to the present invention has a substantially rectangular core which is a side leg, and an air gap which is disposed at the center in the width direction along the longitudinal direction in a through hole of the substantially rectangular core, and has a non-magnetic material at both ends. A substantially I-shaped core, which is a central leg to which the forming member is attached, is attached. A coil is attached to the substantially I-shaped core.
【００４８】上記記載のように、エアギャップ形成部材
を介して、側脚である略ロ字形コアと中央脚である略Ｉ
形コアとが組立てられて磁路が形成されているため、機
械的に接続する突合せ部が磁路中に存在せず、磁路中に
存在するコアの突合部より生ずる振動を無くすことがで
きる。また、突合せ部における磁束の乱れおよび磁気抵
抗もなくなり、磁束の有効利用が図れる。As described above, through the air gap forming member, a substantially square core as a side leg and a substantially I-shaped core as a central leg are provided.
Since the magnetic path is formed by assembling the shaped core and the magnetic path, there is no mechanically connected butting portion in the magnetic path, and vibration generated by the butting portion of the cores present in the magnetic path can be eliminated. . In addition, the disturbance of the magnetic flux and the magnetic resistance at the butting portion are also eliminated, and the effective use of the magnetic flux can be achieved.
【００４９】エアギャップ部は、エアギャップ形成部材
により形成されるので、突合せ部から生ずる機械的な接
合誤差もなく、エアギャップ部のバラツキも生ずること
はない。Since the air gap portion is formed by the air gap forming member, there is no mechanical joining error caused by the butted portion, and no variation in the air gap portion occurs.
【００５０】また、エアギャップ形成部材と中央脚であ
る略Ｉ形コアの形状を変えるだけで、エアギャップ部を
自由に変えることができる。The air gap portion can be freely changed only by changing the shapes of the air gap forming member and the substantially I-shaped core serving as the center leg.
【００５１】さらに、コイルの嵌合孔に中央脚である略
Ｉ形コアを嵌合したのち、この略Ｉ形コアの両端にそれ
ぞれエアギャップ形成部材を取付けるとともに、このエ
アギャップ形成部材の係合凸部を嵌合孔の係合溝部に係
合して組立状態とし、この組立状態で、側脚である略ロ
字形コアに組付けることができるので、簡単に電磁装置
を組立てることができる。Further, after a substantially I-shaped core serving as a center leg is fitted into the fitting hole of the coil, an air gap forming member is attached to each end of the substantially I-shaped core, and the air gap forming member is engaged. The projection is engaged with the engagement groove of the fitting hole to form an assembled state, and in this assembled state, the electromagnetic device can be easily assembled because the assembly can be assembled to the substantially square core, which is the side leg.
【００５２】また、中央脚である略Ｉ形コアを側脚であ
る略ロ字形コアに取付けるエアギャップ形成部材の位置
決め凸部は、略Ｉ形コアの幅方向中央に位置しているた
め、磁束が中央脚である略Ｉ形コアから両側側脚へ向か
うとき、磁路からエアギャップ形成部材の位置決め凸部
が外れるため磁気特性に与える影響は少ない。The positioning protrusion of the air gap forming member for attaching the substantially I-shaped core, which is the central leg, to the substantially U-shaped core, which is the side leg, is located at the center in the width direction of the substantially I-shaped core. When the heading moves from the substantially I-shaped core, which is the central leg, to the side legs, the positioning convex portion of the air gap forming member is removed from the magnetic path, so that the influence on the magnetic characteristics is small.
【００５３】中央脚である略Ｉ形コアは、コア同士の圧
入で保持されるものではないが、エアギャップ部が略Ｉ
形コアの両端で略均等２分割されることにより、この２
分割されたエアギャップ部に略同一の磁束が通ることに
より、略Ｉ形コアの両端と略ロ字形コア間の吸引力は、
その力は相殺されて機械的固定の弱さは十分に補われ
る。Although the substantially I-shaped core serving as the center leg is not held by press-fitting between the cores, the air gap portion is substantially I-shaped.
The two ends are almost equally divided at both ends of the shaped core.
By passing substantially the same magnetic flux through the divided air gaps, the attractive force between both ends of the substantially I-shaped core and the substantially square-shaped core is:
The forces are offset and the weakness of the mechanical fixation is sufficiently compensated.
【００５４】なお、中央脚である略Ｉ形コアと巻ま枠と
を一体成型する方法では、エアギャップ形成部材とこの
エアギャップ形成部材の外面に形成する位置決め凸部と
を一緒に一体成型するものであってもよい。In the method of integrally molding the substantially I-shaped core serving as the central leg and the winding frame, the air gap forming member and the positioning projection formed on the outer surface of the air gap forming member are integrally formed together. It may be something.
【００５５】また、略Ｉ形コアと略ロ字形コアとは、け
い素鋼板などの鋼板を積層したもので説明したが、フェ
ライトで一体的に成型されたものであってもよいことは
勿論である。Although the substantially I-shaped core and the substantially square-shaped core have been described by laminating steel plates such as silicon steel plates, it is needless to say that they may be integrally formed of ferrite. is there.
【００５６】[0056]
【発明の効果】以上詳記したように請求項１の本発明に
よれば、コアは側脚を形成する略ロ字形コアとこの略ロ
字形コア内に配置され両端にエアギャップ部が形成され
た中央脚を形成する略Ｉ形コアとからなり、エアギャッ
プ部には、非磁性材からなるエアギャップ形成部材を介
在させた構成にしたので、略ロ字形コアと略Ｉ形コアと
からなる磁路に磁気抵抗となるとともに、磁束の乱れが
生じる突合せ部が存在しないので磁束の有効利用が図れ
る。As described above, according to the first aspect of the present invention, the core has a substantially rectangular core forming side legs and an air gap portion is formed at both ends in the substantially rectangular core. A substantially I-shaped core that forms a central leg, and an air gap forming member made of a non-magnetic material is interposed in the air gap portion, so that it is composed of a substantially square-shaped core and a substantially I-shaped core. Since the magnetic path becomes a magnetic resistance and there is no abutting portion where the magnetic flux is disturbed, the magnetic flux can be effectively used.
【００５７】さらに、中央脚を形成する略Ｉ形コアの両
端にそれぞれエアギャップ部を形成したので、略Ｉ形コ
アの両端と略ロ字形コア間の吸引力は、その力は相殺さ
れて吸引力の影響をほとんど受けることはない。このた
め、突合せ部のないことと相俟って、振動の発生も最小
限に押さえることができる。Further, since the air gaps are formed at both ends of the substantially I-shaped core forming the central leg, the suction force between both ends of the substantially I-shaped core and the substantially square-shaped core is canceled by the force. Hardly affected by power. For this reason, the occurrence of vibration can be suppressed to a minimum, in combination with the absence of the butted portion.
【００５８】請求項２の本発明によれば、エアギャップ
形成部材に位置決め凸部を形成したので、中央脚である
略Ｉ形コアと側脚である略ロ字形コアとの位置関係を一
定にすることができるので、磁気特性に与える影響を少
なくすることができる。According to the second aspect of the present invention, since the positioning convex portion is formed on the air gap forming member, the positional relationship between the substantially I-shaped core as the center leg and the substantially square-shaped core as the side leg is kept constant. Therefore, the influence on the magnetic characteristics can be reduced.
【図１】本発明の第１実施の形態に係る電磁装置の組立
て手順を示す斜視図。FIG. 1 is an exemplary perspective view showing a procedure for assembling an electromagnetic device according to a first embodiment of the present invention;
【図２】同実施の形態における電磁装置の構成部品を示
す斜視図。FIG. 2 is an exemplary perspective view showing components of the electromagnetic device according to the embodiment;
【図３】同実施の形態における電磁装置の一部断面を含
む組立状態を示す斜視図。FIG. 3 is an exemplary perspective view showing an assembled state including a partial cross section of the electromagnetic device according to the embodiment;
【図４】本発明の他のエアギャップ形成部材を含む電磁
装置の構成部品を示す斜視図。FIG. 4 is a perspective view showing components of an electromagnetic device including another air gap forming member of the present invention.
【図５】同上における電磁装置の一部断面を含む組立状
態を示す斜視図。FIG. 5 is a perspective view showing an assembled state including a partial cross section of the electromagnetic device in the above.
【図６】本発明の第２のエアギャップ形成部材を含む電
磁装置の構成部品を示す斜視図。FIG. 6 is a perspective view showing components of an electromagnetic device including a second air gap forming member of the present invention.
【図７】従来技術に係る電磁装置の一部断面を含む組立
状態を示す斜視図。FIG. 7 is a perspective view showing an assembled state including a partial cross section of an electromagnetic device according to the related art.
【図８】他の従来技術に係る電磁装置の一部断面を含む
組立状態を示す斜視図。FIG. 8 is a perspective view showing an assembled state including a partial cross section of an electromagnetic device according to another related art.
１０…エアギャップ部， １５…コイル， ４０…側脚を形成する略ロ字形コア， ４４ａ…位置決め凹部， ４５…中央脚を形成する略Ｉ形コア， ５５…エアギャップ形成部材， ５８…位置決め凸部。 DESCRIPTION OF SYMBOLS 10 ... Air gap part, 15 ... Coil, 40 ... Substantially square-shaped core which forms a side leg, 44a ... Positioning recessed part, 45 ... Substantially I-shaped core which forms a center leg, 55 ... Air gap forming member, 58 ... Positioning convex Department.
Claims (2)
のコアに装着したコイルとを備え、前記磁路の１部にエ
アギャップを設けた電磁装置において、 前記コアは前記側脚を形成する略ロ字形コアと、 この略ロ字形コア内に配置された前記中央脚を形成する
略Ｉ形コアとからなり、 前記エアギャップ部には前記略Ｉ形コアの両端に非磁性
材からなるエアギャップ形成部材を介在させて形成され
たことを特徴とする電磁装置。1. An electromagnetic device comprising: a core forming a magnetic path by a side leg and a center leg; and a coil mounted on the core, wherein an air gap is provided in a part of the magnetic path. A substantially rectangular core forming legs; and a substantially I-shaped core forming the central leg disposed in the substantially rectangular core. The air gap portion includes a non-magnetic material at both ends of the substantially I-shaped core. An electromagnetic device formed by interposing an air gap forming member made of a material.
形成部材に位置決め凸部を外方に向けてそれぞれ突出形
成し、 これら位置決め凸部が嵌合する位置決め凹部を前記ロ字
形コア内面に対向してそれぞれ形成したことを特徴とす
る請求項１記載の電磁装置。2. The air gap forming member is disposed at both ends of the substantially I-shaped core, and positioning projections are formed on these air gap forming members so as to project outward, and these positioning projections are fitted. 2. The electromagnetic device according to claim 1, wherein the positioning recesses are formed so as to face the inner surface of the square core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8230496A JPH1074644A (en) | 1996-08-30 | 1996-08-30 | Electromagnetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8230496A JPH1074644A (en) | 1996-08-30 | 1996-08-30 | Electromagnetic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1074644A true JPH1074644A (en) | 1998-03-17 |
Family
ID=16908688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8230496A Pending JPH1074644A (en) | 1996-08-30 | 1996-08-30 | Electromagnetic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1074644A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313635A (en) * | 2001-04-10 | 2002-10-25 | Mitsumi Electric Co Ltd | Method of managing gap of inductor |
| JP2004260183A (en) * | 2003-02-26 | 2004-09-16 | Robert Bosch Gmbh | Energy storage and energy conversion device |
| JP2006351764A (en) * | 2005-06-15 | 2006-12-28 | Sumida Corporation | Magnetic element and method for manufacturing the same |
| JP2008524861A (en) * | 2004-12-22 | 2008-07-10 | ジン リ | Interpolated magnetic energy generator and magnetic energy lamp equipped with the interpolated magnetic energy generator |
| JP2009141111A (en) * | 2007-12-06 | 2009-06-25 | Daikin Ind Ltd | Reactor |
| JP2009141117A (en) * | 2007-12-06 | 2009-06-25 | Daikin Ind Ltd | Reactor |
| ITMI20110654A1 (en) * | 2011-04-18 | 2012-10-19 | Eldor Corp Spa | DEVICE FOR ENERGY TRANSFORMATION |
| JP2019071358A (en) * | 2017-10-10 | 2019-05-09 | 田淵電機株式会社 | Reactor |
| JP2019087557A (en) * | 2017-11-01 | 2019-06-06 | トヨタ自動車株式会社 | Reactor |
-
1996
- 1996-08-30 JP JP8230496A patent/JPH1074644A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313635A (en) * | 2001-04-10 | 2002-10-25 | Mitsumi Electric Co Ltd | Method of managing gap of inductor |
| JP2004260183A (en) * | 2003-02-26 | 2004-09-16 | Robert Bosch Gmbh | Energy storage and energy conversion device |
| JP4589014B2 (en) * | 2003-02-26 | 2010-12-01 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Energy storage and energy conversion equipment |
| JP2008524861A (en) * | 2004-12-22 | 2008-07-10 | ジン リ | Interpolated magnetic energy generator and magnetic energy lamp equipped with the interpolated magnetic energy generator |
| JP2006351764A (en) * | 2005-06-15 | 2006-12-28 | Sumida Corporation | Magnetic element and method for manufacturing the same |
| JP2009141111A (en) * | 2007-12-06 | 2009-06-25 | Daikin Ind Ltd | Reactor |
| JP2009141117A (en) * | 2007-12-06 | 2009-06-25 | Daikin Ind Ltd | Reactor |
| ITMI20110654A1 (en) * | 2011-04-18 | 2012-10-19 | Eldor Corp Spa | DEVICE FOR ENERGY TRANSFORMATION |
| JP2019071358A (en) * | 2017-10-10 | 2019-05-09 | 田淵電機株式会社 | Reactor |
| JP2019087557A (en) * | 2017-11-01 | 2019-06-06 | トヨタ自動車株式会社 | Reactor |
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