JPH0864428A - Laminated iron core and its assembling method - Google Patents
Laminated iron core and its assembling methodInfo
- Publication number
- JPH0864428A JPH0864428A JP6193346A JP19334694A JPH0864428A JP H0864428 A JPH0864428 A JP H0864428A JP 6193346 A JP6193346 A JP 6193346A JP 19334694 A JP19334694 A JP 19334694A JP H0864428 A JPH0864428 A JP H0864428A
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- core
- laminated
- steel plate
- type
- 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.)
- Pending
Links
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、トランス、リアクトル
又はマグアンプ（磁気増幅器）等のコイル装置に使用さ
れる積層鉄心に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated iron core used in a coil device such as a transformer, a reactor or a mag amp (magnetic amplifier).
【０００２】[0002]
【従来の技術】複数枚の鉄心用鋼板を積層して成る積層
鉄心は、従来からトランス、リアクトル又はマグアンプ
（磁気増幅器）等のコイル装置に広く使用されている。
鉄心用鋼板としては、珪素鋼板をＥ型形状又はＩ型形状
にプレス等で打ち抜いたものが通常使用される。例え
ば、図７はＥ型鉄心用鋼板１とＩ型鉄心用鋼板２とを交
互に積層して積層鉄心３を形成し、積層鉄心３の外周面
を絶縁テープ（又は板金類）４で包囲してＥ型鉄心用鋼
板１及びＩ型鉄心用鋼板２を固定した積層鉄心を示す。
また、図８は図７と同様に積層された積層鉄心３の四隅
に設けられたねじ孔３aに固定用ボルト４を挿通し、Ｅ
型鉄心用鋼板１及びＩ型鉄心用鋼板２を固定用ボルト５
及びナット６により締付固定した積層鉄心を示す。ま
た、図９はＥ型鉄心用鋼板１を複数枚積層して成るＥ型
鉄心７とＩ型鉄心用鋼板２を複数枚積層して成るＩ型鉄
心８とを組み合わせて積層鉄心３を形成し、Ｅ型鉄心７
とＩ型鉄心８との接合部９を溶接して各鉄心７、８を固
定した積層鉄心を示す。また、図１０はＥ型鉄心用鋼板
１を複数枚積層して成る２組のＥ型鉄心７を組み合わせ
て積層鉄心３を形成し、２組のＥ型鉄心７の接合部９を
溶接して各鉄心７を固定した積層鉄心を示す。2. Description of the Related Art A laminated iron core formed by laminating a plurality of iron core steel sheets has been widely used in coil devices such as transformers, reactors, mag-amps (magnetic amplifiers) and the like.
As the steel plate for the iron core, a silicon steel plate punched into a E-shape or an I-shape by a press or the like is usually used. For example, in FIG. 7, a steel plate 1 for E-type core and a steel plate 2 for I-type core are alternately laminated to form a laminated core 3, and an outer peripheral surface of the laminated core 3 is surrounded by an insulating tape (or sheet metal) 4. 2 shows a laminated core in which the E-type iron core steel plate 1 and the I-type iron core steel plate 2 are fixed.
Further, in FIG. 8, the fixing bolts 4 are inserted through the screw holes 3a provided at the four corners of the laminated iron cores 3 which are laminated in the same manner as in FIG.
Type iron core steel plate 1 and I type iron core steel plate 2 for fixing bolts 5
And the laminated iron core fixed by the nut 6 is shown. Further, FIG. 9 shows that an E-type iron core 7 formed by laminating a plurality of E-type iron core steel plates 1 and an I-shaped iron core 8 formed by laminating a plurality of I-type iron core steel plates 2 are combined to form a laminated iron core 3. , E type iron core 7
2 shows a laminated iron core in which the joints 9 between the I-shaped iron core 8 and the I-shaped iron core 8 are welded to fix the iron cores 7, 8. Further, FIG. 10 shows that two sets of E-type iron cores 7 formed by laminating a plurality of E-type iron-core steel plates 1 are combined to form a laminated iron core 3, and the joints 9 of the two sets of E-type iron cores 7 are welded. The laminated iron core which fixed each iron core 7 is shown.
【０００３】[0003]
【発明が解決しようとする課題】ところで、図７及び図
８の積層鉄心では、Ｅ型鉄心用鋼板１とＩ型鉄心用鋼板
２とを交互に積層して積層鉄心３を形成するので、組立
作業が煩雑になる欠点があった。また、積層後のＥ型鉄
心用鋼板１及びＩ型鉄心用鋼板２を固定するための絶縁
テープ４又は固定用ボルト５及びナット６が別に必要で
あり、組立作業の工数も増加する欠点があった。また、
図９及び図１０の積層鉄心では、Ｅ型鉄心７とＩ型鉄心
８又は２組のＥ型鉄心７の接合部９を溶接することによ
り各鉄心を固定しているので、小型のコイル装置に使用
される積層鉄心の場合は、溶接の際に発生する熱によっ
て積層鉄心に装着されたコイルが焼損する恐れがあり、
信頼性が低下する欠点があった。By the way, in the laminated iron cores of FIGS. 7 and 8, since the E-shaped iron core steel plate 1 and the I-shaped iron core steel plate 2 are alternately laminated to form the laminated iron core 3, the assembly is performed. There was a drawback that the work was complicated. Further, the insulating tape 4 or the fixing bolts 5 and the nuts 6 for fixing the laminated E-type steel plate 1 and the I-type iron plate 2 are required separately, and there is a drawback that the number of assembling steps increases. It was Also,
In the laminated iron cores of FIGS. 9 and 10, since each iron core is fixed by welding the joint portion 9 of the E-shaped iron core 7 and the I-shaped iron core 8 or two sets of E-shaped iron cores 7, a small coil device can be used. In the case of the laminated core used, the heat generated during welding may cause the coil mounted on the laminated core to burn out,
There was a drawback that reliability was lowered.
【０００４】そこで、本発明では鉄心の組立作業を簡略
化できると共に、小型のコイル装置にも使用可能でかつ
信頼性を向上できる積層鉄心及びその組立方法を提供す
ることを目的とする。Therefore, it is an object of the present invention to provide a laminated iron core and an assembling method thereof which can simplify the iron core assembling work, can be used in a small coil device and can improve reliability.
【０００５】[0005]
【課題を解決するための手段】本発明による積層鉄心
は、一方の鉄心用鋼板を複数枚積層して成る一方の鉄心
と、他方の鉄心用鋼板を各々複数枚積層して成る他方の
鉄心とを有し、前記一方の鉄心と前記他方の鉄心とを組
み合わせかつ固定している。この積層鉄心では、前記一
方の鉄心用鋼板の前記他方の鉄心用鋼板との接合部に第
１の嵌合手段が形成され、前記他方の鉄心用鋼板の前記
一方の鉄心用鋼板との接合部に前記第１の嵌合手段に嵌
合可能な第２の嵌合手段が形成され、前記第１の嵌合手
段と前記第２の嵌合手段とを互いに嵌合させることによ
り前記一方の鉄心及び前記他方の鉄心が固定される。本
発明の実施例では、前記一方の鉄心用鋼板及び前記他方
の鉄心用鋼板の各々に位置決め用の孔が設けられ、該位
置決め用の孔の周縁に前記各鉄心用鋼板の一方の面から
突出するバリが形成されている。図示の第１の実施例で
は、前記一方の鉄心用鋼板はＥ型形状を有し、前記他方
の鉄心用鋼板はＩ型形状を有する。また、図示の第２の
実施例では、前記一方及び他方の鉄心用鋼板は共にＥ型
形状を有する。The laminated iron core according to the present invention comprises one iron core formed by laminating a plurality of steel plates for one core and another iron core formed by laminating a plurality of steel plates for the other core. And the one iron core and the other iron core are combined and fixed. In this laminated core, the first fitting means is formed at a joint between the one steel plate for the core and the other steel plate for the core, and the joint portion of the other steel plate for the core with the one steel plate for the core. Second fitting means that can be fitted to the first fitting means is formed in the first fitting means, and the first fitting means and the second fitting means are fitted to each other, so that the one iron core And the other iron core is fixed. In the embodiment of the present invention, each of the one iron core steel plate and the other iron core steel plate is provided with a positioning hole, and the periphery of the positioning hole is projected from one surface of each of the iron core steel plates. Burrs are formed. In the illustrated first embodiment, one of the iron core steel plates has an E-shape, and the other iron core steel plate has an I-shape. Further, in the illustrated second embodiment, both the one and the other iron core steel plates have an E shape.
【０００６】また、本発明による積層鉄心の組立方法
は、第１の嵌合手段が形成された一方の鉄心用鋼板と前
記第１の嵌合手段に嵌合可能な第２の嵌合手段が形成さ
れた他方の鉄心用鋼板とを各々複数枚用意する工程と、
前記複数枚の一方及び他方の鉄心用鋼板を各々積層して
一方の鉄心及び他方の鉄心を形成する工程と、前記一方
の鉄心及び前記他方の鉄心を押圧して前記第１の嵌合手
段と前記第２の嵌合手段とを互いに嵌合させることによ
り、前記一方の鉄心及び前記他方の鉄心を固定する工程
とを含む。本発明の実施例では、前記一方の鉄心用鋼板
及び前記他方の鉄心用鋼板の各々は位置決め用の孔及び
該位置決め用の孔の周縁に形成されかつ前記各鉄心用鋼
板の一方の面から突出するバリを有し、前記一方の鉄心
及び前記他方の鉄心を各々形成した後に前記各鉄心を各
々積層方向に押圧して前記各鉄心用鋼板の前記位置決め
用の孔に他の前記各鉄心用鋼板の前記バリを各々嵌合さ
せることにより、積層された前記各鉄心用鋼板を固定す
る工程を含む。Further, in the method for assembling the laminated iron core according to the present invention, the one iron core steel plate on which the first fitting means is formed and the second fitting means which can be fitted to the first fitting means are provided. A step of preparing a plurality of the other formed steel plate for the iron core,
A step of stacking the plurality of one and the other steel plates for iron cores to form one iron core and the other iron core; and pressing the one iron core and the other iron core to form the first fitting means. Fixing the one iron core and the other iron core by fitting the second fitting means to each other. In the embodiment of the present invention, each of the one iron core steel plate and the other iron core steel plate is formed in the periphery of the positioning hole and the positioning hole and protrudes from one surface of each of the iron core steel plates. Which has a burr, and after each of the one iron core and the other iron core is formed, each iron core is pressed in the stacking direction and the other iron core steel plates are placed in the positioning holes of the iron core steel plates. The step of fixing each of the laminated steel plates for cores by fitting the burrs to the above.
【０００７】[0007]
【作用】一方の鉄心用鋼板に形成された第１の嵌合手段
と他方の鉄心用鋼板に形成された第１の嵌合手段に嵌合
可能な第２の嵌合手段とを互いに嵌合させることによ
り、一方の鉄心及び他方の鉄心を強固に固定することが
できる。したがって、各鉄心を固定するための固定部材
が不要となり、積層鉄心の組立作業を簡略化できる。ま
た、各鉄心の接合部の溶接が不要となるので、溶接熱に
よる一方又は他方の鉄心に装着されたコイルの損傷を回
避することができる。このため、小型のコイル装置にも
使用可能であり、信頼性を向上することができる。The first fitting means formed on one of the iron core steel plates and the second fitting means formed on the other iron steel plate and capable of being fitted to the first fitting means are fitted to each other. By doing so, one iron core and the other iron core can be firmly fixed. Therefore, a fixing member for fixing each core is not required, and the assembling work of the laminated core can be simplified. Moreover, since welding of the joints of the respective iron cores is not necessary, damage to the coils mounted on one or the other iron cores due to welding heat can be avoided. Therefore, it can be used for a small coil device, and the reliability can be improved.
【０００８】更に、一方の鉄心用鋼板及び他方の鉄心用
鋼板の各々に位置決め用の孔を設け、この位置決め用の
孔の周縁に各鉄心用鋼板の一方の面から突出するバリを
形成した場合は、各鉄心用鋼板の位置決め用の孔に他の
各鉄心用鋼板のバリを各々嵌合させることにより、積層
された各鉄心用鋼板をズレなく確実に固定することが可
能である。Further, when a positioning hole is formed in each of the one iron core steel plate and the other iron core steel plate, and a burr protruding from one surface of each iron core steel plate is formed on the periphery of the positioning hole. By fitting the burrs of the other steel plates for the respective cores into the positioning holes of the steel plates for the respective cores, it is possible to securely fix the laminated steel plates for the core without deviation.
【０００９】[0009]
【実施例】以下、本発明による積層鉄心及びその組立方
法の２つの実施例を図１〜図４に基づいて説明する。但
し、これらの図面では図７〜図１０に示す部分と同一の
部分には同一の符号を付し、その説明を省略する。本発
明による積層鉄心の第１の実施例を図１(Ａ)及び(Ｂ)に
示す。即ち、図１に示す積層鉄心３は、一方の鉄心とし
てのＥ型鉄心７の外脚７a、７bを構成する一方の鉄心用
鋼板としてのＥ型鉄心用鋼板１のＩ型鉄心用鋼板２との
接合部、即ち両側延出部１a、１bの先端部に第１の嵌合
手段としての楔形状の突起部１c、１dがそれぞれ両側延
出部１a、１bの外側から内側へ突出するように形成され
ている。また、他方の鉄心としてのＩ型鉄心８を構成す
る他方の鉄心用鋼板としてのＩ型鉄心用鋼板２のＥ型鉄
心用鋼板１との接合部、即ち両端部２a、２bにはＥ型鉄
心用鋼板１の突起部１c、１dに嵌合可能な第２の嵌合手
段としての切欠部２c、２dがそれぞれ形成されている。
図１(Ａ)に示すように、Ｅ型鉄心７を構成するＥ型鉄心
用鋼板１及びＩ型鉄心８を構成するＩ型鉄心用鋼板２の
各々には、Ｅ型鉄心用鋼板１及びＩ型鉄心用鋼板２を積
層する際の複数の位置決め用の孔１e、２eがプレス打抜
等により設けられている。このため、図３(Ａ)に示すよ
うに、複数の位置決め用の孔１e、２eの周縁にＥ型及び
Ｉ型鉄心用鋼板１、２の裏面１f、２fから突出するバリ
１g、２gが形成される。したがって、図４に示すように
Ｅ型及びＩ型鉄心用鋼板１、２の上に各々他のＥ型及び
Ｉ型鉄心用鋼板１１、１２を積み重ねたときに、他の各
鋼板１１、１２のバリ１１g、１２gがそれぞれ各鋼板
１、２の位置決め用の孔１e、２eに入り込むので、各鋼
板１、１１、２、１２を積層方向、即ち図示の矢印方向
に押圧することにより、積層された各鋼板１、１１、
２、１２をズレなく確実に固定することができる。EXAMPLES Two examples of a laminated core and an assembling method thereof according to the present invention will be described below with reference to FIGS. However, in these drawings, the same parts as those shown in FIGS. 7 to 10 are designated by the same reference numerals, and the description thereof will be omitted. A first embodiment of the laminated core according to the present invention is shown in FIGS. 1 (A) and 1 (B). That is, the laminated iron core 3 shown in FIG. 1 includes the outer legs 7a and 7b of the E-shaped iron core 7 as one iron core and the I-shaped iron steel plate 2 of the E-shaped iron steel plate 1 as one iron steel plate. So that the wedge-shaped projections 1c and 1d as the first fitting means project from the outside of the both-side extending portions 1a and 1b to the inside of the joint portions, that is, the tips of the both-side extending portions 1a and 1b. Has been formed. Further, an E-type iron core is formed at a joint between the I-type iron core steel plate 2 as the other iron-core steel plate forming the I-type iron core 8 as the other iron core and the E-type iron core steel plate 1, that is, at both ends 2a and 2b. Notches 2c and 2d as second fitting means that can be fitted to the projections 1c and 1d of the steel plate 1 are formed, respectively.
As shown in FIG. 1 (A), each of the E-type iron core steel plate 1 forming the E-type iron core 7 and the I-type iron core steel plate 2 forming the I-type iron core 8 includes the E-type iron core steel plates 1 and I. A plurality of positioning holes 1e, 2e for stacking the steel plates 2 for die core are provided by press punching or the like. Therefore, as shown in FIG. 3 (A), burrs 1g and 2g protruding from the back surfaces 1f and 2f of the E-shaped and I-shaped iron core steel plates 1 and 2 are formed on the periphery of the plurality of positioning holes 1e and 2e. To be done. Therefore, as shown in FIG. 4, when the other E-type and I-type iron core steel plates 11 and 12 are stacked on the E-type and I-type iron core steel plates 1 and 2, respectively, Since the burrs 11g and 12g enter the positioning holes 1e and 2e of the steel plates 1 and 2, respectively, they are stacked by pressing the steel plates 1, 11, 2 and 12 in the stacking direction, that is, the arrow direction shown in the drawing. Each steel plate 1, 11,
It is possible to securely fix the 2 and 12 without displacement.
【００１０】図１の積層鉄心３を組み立てる際には、ま
ず、Ｅ型及びＩ型鉄心用鋼板１、２の位置決め用の孔１
e、２eを基準にしてＥ型及びＩ型鉄心用鋼板１、２を各
々積層してＥ型鉄心７及びＩ型鉄心８をそれぞれ形成す
る。次に、図４に示すようにＥ型鉄心７及びＩ型鉄心８
を積層方向、即ち図示の矢印方向に押圧して各鉄心用鋼
板１、２の位置決め用の孔１e、２eに他のＥ型及びＩ型
鉄心用鋼板１１、１２のバリ１１g、１２gを各々嵌合さ
せる。これにより、積層された各鉄心用鋼板１、１１、
２、１２が固定される。その後、必要に応じてＥ型鉄心
７の中央脚７cにコイルが巻回されたボビン（図示せ
ず）を装着後、Ｉ型鉄心８をＥ型鉄心７に押し付けるこ
とにより、Ｅ型鉄心７の外脚７a、７bを外側に弾性変形
させてＥ型鉄心用鋼板１の突起部１c、１dとＩ型鉄心用
鋼板２の切欠部２c、２dとを互いに嵌合させる。これに
より、図１(Ｂ)に示すようにＥ型鉄心７及びＩ型鉄心８
が強固に固定され、Ｅ−Ｉ型の積層鉄心３の組み立てが
完了する。When assembling the laminated iron core 3 shown in FIG. 1, first, the positioning holes 1 for the E-shaped and I-shaped iron core steel plates 1 and 2 are formed.
E-type and I-type iron core steel plates 1 and 2 are laminated on the basis of e and 2e to form an E-type iron core 7 and an I-type iron core 8, respectively. Next, as shown in FIG. 4, an E-shaped iron core 7 and an I-shaped iron core 8
Are pressed in the stacking direction, that is, in the direction of the arrow shown in the drawing, and burrs 11g, 12g of the other E-shaped and I-shaped iron core steel plates 11, 12 are fitted into the positioning holes 1e, 2e of the iron core steel plates 1, 2, respectively. To combine. Thereby, the laminated iron core steel plates 1, 11,
2, 12 are fixed. After that, a bobbin (not shown) having a coil wound around the central leg 7c of the E-shaped iron core 7 is attached as necessary, and then the I-shaped iron core 8 is pressed against the E-shaped iron core 7 so that the E-shaped iron core 7 The outer legs 7a, 7b are elastically deformed outward so that the projections 1c, 1d of the E-type iron core steel plate 1 and the notches 2c, 2d of the I-type iron core steel plate 2 are fitted to each other. As a result, as shown in FIG. 1B, the E-shaped core 7 and the I-shaped core 8 are formed.
Are firmly fixed, and the assembly of the EI type laminated core 3 is completed.
【００１１】上述の通り、図１の積層鉄心３では、Ｅ型
鉄心用鋼板１の突起部１c、１dとＩ型鉄心用鋼板２の切
欠部２c、２dとを互いに嵌合させることにより、Ｅ型鉄
心７及びＩ型鉄心８を強固に固定することができるの
で、Ｅ型鉄心７及びＩ型鉄心８を固定するための固定部
材が不要となり、積層鉄心３の組立作業の簡略化が可能
となる。また、Ｅ型鉄心７及びＩ型鉄心８の接合部の溶
接が不要となるので、溶接熱によるＥ型鉄心７に装着さ
れたコイル（図示せず）の損傷を回避することができ
る。このため、小型のコイル装置にも使用可能であり、
信頼性を向上することができる。更に、上記の実施例で
はＥ型鉄心７及びＩ型鉄心８をそれぞれ形成後、Ｅ型鉄
心７及びＩ型鉄心８をそれぞれ積層方向に押圧して各鉄
心用鋼板１、２の位置決め用の孔１e、２eに他の各鉄心
用鋼板１１、１２のバリ１１g、１２gを各々嵌合させる
ので、積層された各鉄心用鋼板１、１１、２、１２をズ
レなく確実に固定することが可能である。As described above, in the laminated iron core 3 of FIG. 1, the protrusions 1c and 1d of the E-shaped iron core steel plate 1 and the cutouts 2c and 2d of the I-shaped iron core steel plate 2 are fitted to each other so that E Since the die core 7 and the I-shaped core 8 can be firmly fixed, a fixing member for fixing the E-shaped iron core 7 and the I-shaped iron core 8 is not required, and the assembly work of the laminated iron core 3 can be simplified. Become. Further, since welding of the joint between the E-shaped iron core 7 and the I-shaped iron core 8 is unnecessary, it is possible to avoid damage to the coil (not shown) attached to the E-shaped iron core 7 due to welding heat. Therefore, it can be used for small coil devices,
The reliability can be improved. Further, in the above embodiment, after the E-shaped iron core 7 and the I-shaped iron core 8 are formed, respectively, the E-shaped iron core 7 and the I-shaped iron core 8 are pressed in the stacking direction to form the positioning holes for the steel plates 1 and 2 for the iron cores. Since the burrs 11g and 12g of the other iron core steel plates 11 and 12 are fitted to the 1e and 2e, respectively, the laminated iron core steel plates 1, 11, 2 and 12 can be securely fixed without displacement. is there.
【００１２】次に、本発明による積層鉄心の第２の実施
例を図２(Ａ)及び(Ｂ)に示す。即ち、図２に示す積層鉄
心３は、一方のＥ型鉄心７の外脚７a、７bを構成する一
方のＥ型鉄心用鋼板１の両側延出部１a、１bの先端部に
第１の嵌合手段としての楔形状の突起部１c、１dがそれ
ぞれ両側延出部１a、１bの外側から内側へ突出するよう
に形成されている。また、他方のＥ型鉄心７′の外脚
７′a、７′bを構成する他方のＥ型鉄心用鋼板１′の両
側延出部１′a、１′bの先端部には、一方のＥ型鉄心用
鋼板１の突起部１c、１dに嵌合可能な第２の嵌合手段と
しての突起部１′c、１′dがそれぞれ両側延出部１′
a、１′bの内側から外側へ突出するように形成されてい
る。図２(Ａ)に示すように、一方及び他方のＥ型鉄心
７、７′を構成する一方及び他方のＥ型鉄心用鋼板１、
１′の各々には、一方及び他方のＥ型鉄心用鋼板１、
１′を積層する際の複数の位置決め用の孔１e、１′eが
プレス打抜等により設けられている。このため、図３
(Ｂ)に示すように、複数の位置決め用の孔１e、１′eの
周縁に一方及び他方のＥ型鉄心用鋼板１、１′の裏面１
f、１′fから突出するバリ１g、１′gが形成される。し
たがって、図４に示すように各Ｅ型鉄心用鋼板１、１′
の上に各々他の各Ｅ型鉄心用鋼板１１、１１′を積み重
ねたときに、他の各鋼板のバリ１１g、１１′gがそれぞ
れ各鋼板１、１′の位置決め用の孔１e、１′eに入り込
むので、各鋼板１、１′を矢印方向に押圧することによ
り、積層された各鋼板１、１１、１′、１１′をズレな
く確実に固定することができる。Next, a second embodiment of the laminated core according to the present invention is shown in FIGS. 2 (A) and 2 (B). That is, in the laminated iron core 3 shown in FIG. 2, the first fitting is applied to the tip ends of the two side extending portions 1a and 1b of the one E-shaped steel plate 1 for forming the outer legs 7a and 7b of the one E-shaped iron core 7. Wedge-shaped protrusions 1c and 1d as coupling means are formed so as to protrude from the outside to the inside of the both-side extending portions 1a and 1b, respectively. Further, one of the two side extending portions 1'a, 1'b of the other E-shaped iron core steel plate 1'constituting the outer legs 7'a, 7'b of the other E-shaped iron core 7'is provided with one end. The projections 1'c and 1'd as the second fitting means that can be fitted to the projections 1c and 1d of the E-type iron core steel plate 1 of FIG.
It is formed so as to project from the inside of a, 1'b to the outside. As shown in FIG. 2 (A), one and the other E-type iron core steel plates 1 forming one and the other E-type iron cores 7 and 7 ′,
Each of 1'includes one and the other of the E-shaped steel plates 1 for E-core,
A plurality of positioning holes 1e and 1'e for stacking 1'are provided by press punching or the like. Therefore, in FIG.
As shown in (B), the back surfaces 1 of the one and the other E-shaped iron core steel plates 1 and 1'are provided along the periphery of the plurality of positioning holes 1e and 1'e.
Burrs 1g and 1'g protruding from f and 1'f are formed. Therefore, as shown in FIG. 4, the respective E-type iron core steel plates 1, 1 '
When the other E-type iron core steel plates 11 and 11 'are stacked on top of each other, the burrs 11g and 11'g of the other steel plates are positioned in the holes 1e and 1'for positioning the steel plates 1 and 1', respectively. Since it enters into e, by pressing the respective steel plates 1, 1'in the direction of the arrow, the laminated steel plates 1, 11, 1 ', 11' can be securely fixed without displacement.
【００１３】図２の積層鉄心３を組み立てる際には、ま
ず、一方及び他方のＥ型鉄心用鋼板１、１′の位置決め
用の孔１e、１′eを基準にして各鉄心用鋼板１、１′を
各々積層して一方及び他方のＥ型鉄心７、７′をそれぞ
れ形成する。次に、図４に示すように各Ｅ型鉄心７、
７′を矢印方向に押圧して各鉄心用鋼板１、１′の位置
決め用の孔１e、１′eに他の一方及び他方のＥ型鉄心用
鋼板１１、１１′のバリ１１g、１１′gを各々嵌合させ
ることにより、積層された各鉄心用鋼板１、１１、
１′、１１′を固定する。その後、必要に応じて一方又
は他方のＥ型鉄心７、７′の中央脚７c、７′cのいずれ
か一方にコイルが巻回されたボビン（図示せず）を装着
後、他方のＥ型鉄心７′を一方のＥ型鉄心７に押し付け
ることにより、一方のＥ型鉄心７の外脚７a、７bを外側
に弾性変形させかつ他方のＥ型鉄心７′の外脚７′a、
７′bを内側に弾性変形させて一方のＥ型鉄心用鋼板１
の突起部１c、１dと他方のＥ型鉄心用鋼板１′の突起部
１′c、１′dとを互いに嵌合させる。これにより、図２
(Ｂ)に示すように一方のＥ型鉄心７及び他方のＥ型鉄心
７′が強固に固定され、Ｅ−Ｅ型の積層鉄心３の組み立
てが完了する。When assembling the laminated iron core 3 shown in FIG. 2, first, the respective iron core steel plates 1, 1'e based on the positioning holes 1e, 1'e of the one and the other E type iron core steel plates 1, 1 '. 1'is laminated to form one and the other E-shaped iron cores 7, 7 ', respectively. Next, as shown in FIG. 4, each E-shaped core 7,
By pressing 7'in the direction of the arrow, the burrs 11g and 11'g of the other one and the other E-shaped iron core steel plates 11 and 11 'are inserted into the positioning holes 1e and 1'e of the iron core steel plates 1 and 1'. By fitting each of the steel plates for iron cores 1, 11,
Fix 1'and 11 '. After that, a bobbin (not shown) having a coil wound around one of the central legs 7c and 7'c of one or the other E-shaped iron cores 7 and 7'is mounted as necessary, and then the other E-shaped iron core 7 and 7'c is mounted. By pressing the iron core 7'on one E-shaped iron core 7, the outer legs 7a, 7b of one E-shaped iron core 7 are elastically deformed outward and the outer leg 7'a of the other E-shaped iron core 7 ',
7'b is elastically deformed inward and one of the E type iron core steel plates 1
The projections 1c and 1d of the above and the projections 1'c and 1'd of the other E-type steel plate 1'for an iron core are fitted to each other. As a result, FIG.
As shown in (B), one E-type iron core 7 and the other E-type iron core 7'are firmly fixed, and the assembly of the EE type laminated iron core 3 is completed.
【００１４】以上のように、図２に示す実施例において
も図１に示す実施例と略同様の効果が得られる。なお、
図２に示す実施例では、他方のＥ型鉄心７′を一方のＥ
型鉄心７に押し付ける際に、一方のＥ型鉄心７の外脚７
a、７bが外側に弾性変形すると共に他方のＥ型鉄心７′
の外脚７′a、７′bが内側に弾性変形するので、各Ｅ型
鉄心７、７′の各外脚７a、７b、７′a、７′bに加わる
応力が図１のＥ型鉄心７の外脚７a、７bの場合に比較し
て小さい利点がある。As described above, in the embodiment shown in FIG. 2, substantially the same effect as that of the embodiment shown in FIG. 1 can be obtained. In addition,
In the embodiment shown in FIG. 2, the other E-shaped iron core 7'is replaced by one E-shaped core.
The outer leg 7 of one E-shaped iron core 7 when pressed against the iron core 7
a and 7b are elastically deformed outward and the other E-shaped iron core 7 '
Since the outer legs 7'a, 7'b of FIG. 1 are elastically deformed inward, the stress applied to the outer legs 7a, 7b, 7'a, 7'b of the E-shaped iron cores 7, 7'is There is a small advantage compared with the case of the outer legs 7a and 7b of the iron core 7.
【００１５】本発明の実施態様は前記の実施例に限定さ
れず変更が可能である。例えば、図１の実施例では、Ｅ
型鉄心用鋼板１の両側延出部１a、１bの先端部に両側延
出部１a、１bの外側から内側へ突出する形状の突起部１
c、１dを形成し、Ｉ型鉄心用鋼板２の両端部２a、２bに
突起部１c、１dに嵌合可能な切欠部２c、２dを形成した
例を示したが、これとは逆に、図５に示すようにＩ型鉄
心用鋼板２の両端部２a、２bに両端部２a、２bの外側か
ら内側へ突出する形状の突起部２h、２iを形成し、Ｅ型
鉄心用鋼板１の両側延出部１a、１bの先端部に突起部２
h、２iに嵌合可能な切欠部１h、１iを形成してもよい。
また、図１及び図２の実施例では、Ｅ型鉄心７の中央脚
７cにコイルが巻回されたボビンを装着する場合の例を
示したが、マグアンプ等のようにＥ型鉄心７の外脚７
a、７bの各々にコイルが巻回されたボビンを装着する場
合には、図６(Ａ)又は(Ｂ)に示すようにするとよい。即
ち、図６(Ａ)はＥ−Ｉ型の積層鉄心の場合の変更実施例
を示し、Ｉ型鉄心用鋼板２の中央部２jに楔形状の突起
部２kを形成し、Ｅ型鉄心用鋼板１の中央延出部１jの先
端部に前記突起部２kに嵌合可能な切欠部１kを形成した
ものである。一方、図６(Ｂ)はＥ−Ｅ型の積層鉄心の場
合の変更実施例を示し、他方のＥ型鉄心用鋼板１′の中
央延出部１′jの先端部に楔形状の突起部１′kを形成
し、一方のＥ型鉄心用鋼板１の中央延出部１jの先端部
に前記突起部１′kに嵌合可能な切欠部１kを形成したも
のである。The embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified. For example, in the embodiment of FIG.
Protrusions 1 each having a shape projecting from the outside of the both-side extending portions 1a, 1b at the tips of the both-side extending portions 1a, 1b of the steel plate 1 for a die core.
Although c and 1d are formed, and the notches 2c and 2d which can be fitted to the projections 1c and 1d are formed on both ends 2a and 2b of the I-shaped iron core steel plate 2, the opposite example is shown. As shown in FIG. 5, both ends 2a, 2b of the I-type iron core steel plate 2 are formed with protrusions 2h, 2i in a shape projecting from the outside of the both ends 2a, 2b to both sides of the E-type iron core steel plate 1. Protrusions 2 are provided at the tips of the extending portions 1a and 1b
Notches 1h and 1i that can be fitted to h and 2i may be formed.
Further, in the embodiment of FIGS. 1 and 2, an example in which a bobbin having a coil wound around the central leg 7c of the E-shaped iron core 7 is mounted is shown. However, as shown in FIG. Leg 7
When a bobbin having a coil wound around each of a and 7b is mounted, it is preferable to carry out as shown in FIG. 6 (A) or (B). That is, FIG. 6A shows a modified embodiment in the case of an E-I type laminated core, in which a wedge-shaped protrusion 2k is formed in the central portion 2j of the I-type iron-steel plate 2 to form an E-type steel plate. A notch 1k that can be fitted into the protrusion 2k is formed at the tip of the central extension 1j. On the other hand, FIG. 6 (B) shows a modified embodiment in the case of the EE type laminated core, in which a wedge-shaped protrusion is formed at the tip of the central extension 1'j of the other E-type steel sheet 1'for core. 1'k is formed, and a notch 1k that can be fitted to the projection 1'k is formed at the tip of the central extension 1j of one E-type iron core steel plate 1.
【００１６】[0016]
【発明の効果】本発明によれば、一方の鉄心用鋼板に形
成された第１の嵌合手段と他方の鉄心用鋼板に形成され
た第１の嵌合手段に嵌合可能な第２の嵌合手段とを互い
に嵌合させて一方の鉄心及び他方の鉄心を強固に固定す
ることができるので、各鉄心を固定するための絶縁テー
プ又は固定用ボルト等の固定部材を省略できる。したが
って、積層鉄心の組立作業を簡略化できると共に、部品
点数を少なくして製造コストを削減できる利点がある。
また、各鉄心の接合部を溶接により固定する必要がない
ので、溶接の際に発生する熱による一方又は他方の鉄心
に装着されたコイルの焼損事故を防止することが可能で
ある。このため、小型のコイル装置に使用する積層鉄心
にも適用が可能であり、コイルの焼損事故を防止して信
頼性を向上することができる。According to the present invention, the first fitting means formed on one iron core steel plate and the second fitting means formed on the other iron steel plate can be fitted. Since one iron core and the other iron core can be firmly fixed by fitting the fitting means to each other, a fixing member such as an insulating tape or a fixing bolt for fixing each iron core can be omitted. Therefore, there is an advantage that the assembling work of the laminated core can be simplified and the number of parts can be reduced to reduce the manufacturing cost.
Further, since it is not necessary to fix the joints of the respective iron cores by welding, it is possible to prevent a burnout accident of the coil attached to one or the other iron core due to heat generated during welding. Therefore, the present invention can be applied to a laminated iron core used for a small coil device, and can prevent a coil burnout accident and improve reliability.
【図１】 本発明による積層鉄心の第１実施例を示す正
面図及び斜視図FIG. 1 is a front view and a perspective view showing a first embodiment of a laminated core according to the present invention.
【図２】 本発明による積層鉄心の第２実施例を示す正
面図及び斜視図FIG. 2 is a front view and a perspective view showing a second embodiment of the laminated core according to the present invention.
【図３】 図１及び図２の各鉄心用鋼板の裏面を示す拡
大斜視図FIG. 3 is an enlarged perspective view showing the back surface of each steel plate for iron cores of FIGS. 1 and 2.
【図４】 図１又は図２の各鉄心の積層構造を示す拡大
断面図FIG. 4 is an enlarged cross-sectional view showing a laminated structure of each iron core shown in FIG. 1 or 2.
【図５】 図１の変更実施例を示す正面図5 is a front view showing a modified embodiment of FIG.
【図６】 図１の他の変更実施例及び図２の変更実施例
を示す正面図6 is a front view showing another modified embodiment of FIG. 1 and a modified embodiment of FIG.
【図７】 従来の積層鉄心の第１実施例を示す側断面図
及び正面図FIG. 7 is a side sectional view and a front view showing a first embodiment of a conventional laminated iron core.
【図８】 従来の積層鉄心の第２実施例を示す側断面図
及び正面図FIG. 8 is a side sectional view and a front view showing a second embodiment of the conventional laminated iron core.
【図９】 従来の積層鉄心の第３実施例を示す側面図及
び正面図FIG. 9 is a side view and a front view showing a third embodiment of a conventional laminated iron core.
【図１０】 従来の積層鉄心の第４実施例を示す側面図
及び正面図FIG. 10 is a side view and a front view showing a fourth embodiment of a conventional laminated iron core.
１．．．Ｅ型鉄心用鋼板（一方の鉄心用鋼板）、１a，
１b．．．両側延出部、１c，１d．．．突起部（第１の
嵌合手段）、１e，２e．．．位置決め用の孔、１f，２
f．．．裏面、１g，２g．．．バリ、２．．．Ｉ型鉄心
用鋼板（他方の鉄心用鋼板）、２a，２b．．．両端部、
２c，２d．．．切欠部（第２の嵌合手段）、３．．．積
層鉄心、４．．．絶縁テープ、５．．．固定用ボルト、
６．．．ナット、７．．．Ｅ型鉄心（一方の鉄心）、
８．．．Ｉ型鉄心（他方の鉄心）、９．．．接合部1. ． ． E type iron core steel plate (one iron core steel plate) 1a,
1b. ． ． Both side extending portions, 1c, 1d. ． ． Protrusions (first fitting means) 1e, 2e. ． ． Positioning holes, 1f, 2
f. ． ． Back side 1g, 2g. ． ． Bali, 2. ． ． I type steel plate for iron core (other steel plate for iron core), 2a, 2b. ． ． Both ends,
2c, 2d. ． ． Notch portion (second fitting means), 3. ． ． 3. Laminated core, 4. ． ． Insulating tape, 5. ． ． Fixing bolts,
6. ． ． Nuts, 7. ． ． E type iron core (one iron core),
8. ． ． I-type iron core (other iron core), 9. ． ． Joint
Claims (8)
一方の鉄心と、他方の鉄心用鋼板を各々複数枚積層して
成る他方の鉄心とを有し、前記一方の鉄心と前記他方の
鉄心とを組み合わせかつ固定して成る積層鉄心におい
て、 前記一方の鉄心用鋼板の前記他方の鉄心用鋼板との接合
部に第１の嵌合手段が形成され、前記他方の鉄心用鋼板
の前記一方の鉄心用鋼板との接合部に前記第１の嵌合手
段に嵌合可能な第２の嵌合手段が形成され、 前記第１の嵌合手段と前記第２の嵌合手段とを互いに嵌
合させることにより前記一方の鉄心及び前記他方の鉄心
が固定されることを特徴とする積層鉄心。1. An iron core formed by laminating a plurality of steel plates for one iron core, and another iron core formed by laminating a plurality of steel plates for the other iron core, the one iron core and the other iron core. In the laminated core formed by combining and fixing the iron core of the above, a first fitting means is formed at a joint portion of the one steel plate for the iron core with the steel plate for the other iron core, and the one of the steel plates for the other iron core is formed. Second fitting means that can be fitted to the first fitting means is formed at a joint portion with one of the iron core steel plates, and the first fitting means and the second fitting means are mutually connected. A laminated core, wherein the one core and the other core are fixed by fitting.
心用鋼板の各々に位置決め用の孔が設けられ、該位置決
め用の孔の周縁に前記各鉄心用鋼板の一方の面から突出
するバリが形成された「請求項１」に記載の積層鉄心。2. A positioning hole is provided in each of the one iron core steel plate and the other iron core steel plate, and a burr protruding from one surface of each of the iron core steel plates at the periphery of the positioning hole. The laminated core according to claim 1, wherein the core is formed.
し、前記他方の鉄心用鋼板はＩ型形状を有する「請求項
１」又は「請求項２」に記載の積層鉄心。3. The laminated iron core according to claim 1, wherein the one steel plate for iron core has an E-shape and the other steel plate for iron core has an I-shape.
型形状を有する「請求項１」又は「請求項２」に記載の
積層鉄心。4. The one and the other steel plates for an iron core are both E
The laminated core according to claim 1 or claim 2, which has a die shape.
用鋼板と前記第１の嵌合手段に嵌合可能な第２の嵌合手
段が形成された他方の鉄心用鋼板とを各々複数枚用意す
る工程と、 前記複数枚の一方及び他方の鉄心用鋼板を各々積層して
一方の鉄心及び他方の鉄心を形成する工程と、 前記一方の鉄心及び前記他方の鉄心を押圧して前記第１
の嵌合手段と前記第２の嵌合手段とを互いに嵌合させる
ことにより、前記一方の鉄心及び前記他方の鉄心を固定
する工程と、を含むことを特徴とする積層鉄心の組立方
法。5. A steel plate for iron core on which one first fitting means is formed and a steel plate for iron core on which the other second fitting means that can be fitted to the first fitting means is formed. Each step of preparing a plurality of sheets, a step of forming one iron core and the other iron core by laminating the plurality of one and the other iron core steel plate, respectively, by pressing the one iron core and the other iron core The first
Fixing the one iron core and the other iron core by fitting the fitting means and the second fitting means to each other.
心用鋼板の各々は、位置決め用の孔及び該位置決め用の
孔の周縁に形成されかつ前記各鉄心用鋼板の一方の面か
ら突出するバリを有し、 前記一方の鉄心及び前記他方の鉄心を各々形成した後
に、前記各鉄心を各々積層方向に押圧して前記各鉄心用
鋼板の前記位置決め用の孔に他の前記各鉄心用鋼板の前
記バリを各々嵌合させることにより、積層された前記各
鉄心用鋼板を固定する工程を含む「請求項５」に記載の
積層鉄心の組立方法。6. One of the iron core steel plates and the other iron core steel plate are formed in a positioning hole and a peripheral edge of the positioning hole and project from one surface of each of the iron core steel plates. Having a burr, after forming each of the one iron core and the other iron core, each of the iron cores is pressed in the stacking direction to the positioning holes of the iron core steel plates, and the other iron core steel plates are provided. The method for assembling a laminated iron core according to claim 5, further comprising the step of fixing the laminated steel plates for the iron cores by fitting the burrs to each other.
し、前記他方の鉄心用鋼板はＩ型形状を有する「請求項
５」又は「請求項６」に記載の積層鉄心の組立方法。7. The method for assembling a laminated core according to claim 5, wherein the one steel plate for iron core has an E shape and the other steel plate for iron core has an I shape. .
型形状を有する「請求項５」又は「請求項６」に記載の
積層鉄心の組立方法。8. The steel plates for the one and the other iron cores are both E
The method for assembling a laminated core according to claim 5 or claim 6 having a die shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6193346A JPH0864428A (en) | 1994-08-17 | 1994-08-17 | Laminated iron core and its assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6193346A JPH0864428A (en) | 1994-08-17 | 1994-08-17 | Laminated iron core and its assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0864428A true JPH0864428A (en) | 1996-03-08 |
Family
ID=16306376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6193346A Pending JPH0864428A (en) | 1994-08-17 | 1994-08-17 | Laminated iron core and its assembling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0864428A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100236221B1 (en) * | 1997-03-20 | 1999-12-15 | 조찬호 | Manufacturing method of cores for fluorescent lamp ballasts |
| KR20020081564A (en) * | 2002-06-27 | 2002-10-28 | 신한코아 주식회사 | ballast stabilizer core |
| US7646281B2 (en) * | 2005-01-14 | 2010-01-12 | Lincoln Global, Inc. | Snap-together choke and transformer assembly for an electric arc welder |
| JP2012064610A (en) * | 2010-09-14 | 2012-03-29 | Hitachi Automotive Systems Ltd | Closed magnetic circuit voltage transformer |
| CN102543380A (en) * | 2012-01-18 | 2012-07-04 | 金焊机械（太仓）有限公司 | Iron core structure of transformer |
| CN103700467A (en) * | 2013-11-08 | 2014-04-02 | 浙江肯得机电股份有限公司 | Structure and continuous stamping and automatic overlapping and assembling method of silicon steel sheets of transformer iron core of welding machine |
| US8907759B2 (en) | 2011-10-18 | 2014-12-09 | Kabushiki Kaisha Toyota Jidoshokki | Magnetic core and induction device |
| WO2021019963A1 (en) * | 2019-07-31 | 2021-02-04 | 株式会社エス・エッチ・ティ | Current transformer and method for manufacturing current transformer |
-
1994
- 1994-08-17 JP JP6193346A patent/JPH0864428A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100236221B1 (en) * | 1997-03-20 | 1999-12-15 | 조찬호 | Manufacturing method of cores for fluorescent lamp ballasts |
| KR20020081564A (en) * | 2002-06-27 | 2002-10-28 | 신한코아 주식회사 | ballast stabilizer core |
| US7646281B2 (en) * | 2005-01-14 | 2010-01-12 | Lincoln Global, Inc. | Snap-together choke and transformer assembly for an electric arc welder |
| JP2012064610A (en) * | 2010-09-14 | 2012-03-29 | Hitachi Automotive Systems Ltd | Closed magnetic circuit voltage transformer |
| US8907759B2 (en) | 2011-10-18 | 2014-12-09 | Kabushiki Kaisha Toyota Jidoshokki | Magnetic core and induction device |
| CN102543380A (en) * | 2012-01-18 | 2012-07-04 | 金焊机械（太仓）有限公司 | Iron core structure of transformer |
| CN103700467A (en) * | 2013-11-08 | 2014-04-02 | 浙江肯得机电股份有限公司 | Structure and continuous stamping and automatic overlapping and assembling method of silicon steel sheets of transformer iron core of welding machine |
| CN103700467B (en) * | 2013-11-08 | 2016-02-10 | 浙江肯得机电股份有限公司 | The structure of welder transformer iron core silicon-steel sheet and continuous punching and automatic overlapping and assembling method |
| WO2021019963A1 (en) * | 2019-07-31 | 2021-02-04 | 株式会社エス・エッチ・ティ | Current transformer and method for manufacturing current transformer |
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