JP2000037051A - Stator core for motor and manufacture thereof - Google Patents
Stator core for motor and manufacture thereofInfo
- Publication number
- JP2000037051A JP2000037051A JP10200646A JP20064698A JP2000037051A JP 2000037051 A JP2000037051 A JP 2000037051A JP 10200646 A JP10200646 A JP 10200646A JP 20064698 A JP20064698 A JP 20064698A JP 2000037051 A JP2000037051 A JP 2000037051A
- Authority
- JP
- Japan
- Prior art keywords
- caulking
- electromagnetic steel
- steel sheets
- block
- projections
- 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
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電磁鋼板をカシメ
により複数枚積層して成る電動機用固定子鉄心及びその
製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator iron core for an electric motor, which is formed by laminating a plurality of electromagnetic steel sheets by caulking, and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】従来よりこの種電動機の固定子鉄心は、
予め所定のリング形状に打ち抜き形成された電磁鋼板を
複数枚積層することにより構成されている。この場合、
例えば特開平９−１４９６１８号公報に回転子の例で示
される如く、電磁鋼板にはカシメ用突起を屈曲形成して
置き、積層した状態で隣接する電磁鋼板のカシメ部に係
合させてズレを防止する方法が採られていた。2. Description of the Related Art Conventionally, the stator core of this type of motor has been
It is configured by laminating a plurality of electromagnetic steel sheets punched and formed in a predetermined ring shape in advance. in this case,
For example, as shown in an example of a rotor in Japanese Patent Application Laid-Open No. Hei 9-149618, a crimping projection is formed on an electromagnetic steel plate by bending, and is engaged with a caulking portion of an adjacent electromagnetic steel plate in a laminated state to reduce the displacement. There was a way to prevent it.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
カシメ部の突出寸法はせいぜい電磁鋼板一枚半ほどであ
ったため、カシメだけでは強度が保てず、また、電動機
の運転時に共振による騒音が発生するので、カシメ後に
重合した電磁鋼板を４箇所〜１０カ所溶接（アルゴン溶
接）しなければならない。However, since the size of the protrusion of the conventional caulked portion is at most about one and a half of an electromagnetic steel sheet, the strength cannot be maintained only by caulking alone, and noise is generated due to resonance during operation of the motor. Therefore, the electromagnetic steel sheet polymerized after caulking must be welded at 4 to 10 places (argon welding).
【０００４】また、従来では絶縁被膜の無い安価な電磁
鋼板をカシメて熱処理すると、ステッキングが出て運転
効率が低下してしまうため、衝撃を加えることによりこ
れを除去しており、総じて組立作業が煩雑化してしまう
問題があった。Conventionally, when an inexpensive electromagnetic steel sheet having no insulating film is caulked and heat-treated, sticking occurs and the operating efficiency is reduced. Therefore, this is removed by applying a shock, and the assembly work is generally performed. However, there is a problem that it becomes complicated.
【０００５】本発明は、係る従来の技術的課題を解決す
るために成されたものであり、カシメによって構成され
る電動機用固定子鉄心の組立作業性を改善することを目
的とするものである。The present invention has been made to solve the above-mentioned conventional technical problem, and has as its object to improve the workability of assembling a stator core for a motor constituted by caulking. .
【０００６】[0006]
【課題を解決するための手段】請求項１の発明の電動機
用固定子鉄心は、電磁鋼板をカシメにより複数枚積層し
て成るものであって、電磁鋼板は、当該電磁鋼板の軸線
方向の一方に突出し、他方が凹陥すると共に、積層され
る他の複数枚の電磁鋼板のカシメ用突起の凹陥部分に進
入する寸法を有した複数のカシメ用突起と、このカシメ
用突起が進入可能な複数の透孔とを備えると共に、複数
枚の電磁鋼板が積層され、各カシメ用突起が重合された
ブロックが少なくとも二つ設けられ、一方のブロックの
カシメ用突起が他方のブロックの透孔に進入し、カシメ
られているものである。According to a first aspect of the present invention, there is provided a stator core for an electric motor, wherein a plurality of electromagnetic steel sheets are laminated by caulking, and the electromagnetic steel sheet is arranged in one of the axial directions of the electromagnetic steel sheet. A plurality of caulking protrusions having dimensions that enter the recessed portions of the caulking protrusions of the other plurality of stacked electromagnetic steel sheets, while the other is recessed, and a plurality of caulking protrusions that can enter. With a through-hole, a plurality of electromagnetic steel sheets are laminated, at least two blocks in which each caulking projection is superimposed are provided, and the caulking projection of one block enters the through-hole of the other block, It is what has been caulked.
【０００７】請求項１の発明によれば、積層される他の
複数枚の電磁鋼板のカシメ用突起の凹陥部分に進入する
寸法を有した複数のカシメ用突起を電磁鋼板に設け、複
数枚の電磁鋼板を積層し、各カシメ用突起を重合したブ
ロックを少なくとも二つ設けて、一方のブロックのカシ
メ用突起を他方のブロックの透孔に進入させ、カシメる
ことにより固定子鉄心を構成しているので、電磁鋼板相
互のカシメ強度を向上させ、溶接を廃止しても騒音の発
生を防止することが可能となる。According to the first aspect of the present invention, a plurality of caulking projections having dimensions that enter the recessed portions of the caulking projections of the other plurality of electromagnetic steel sheets to be laminated are provided on the electromagnetic steel sheet. Electromagnetic steel sheets are laminated, and at least two blocks in which each caulking protrusion is superimposed are provided, and the caulking protrusion of one block enters the through hole of the other block, and the stator core is formed by caulking. Therefore, it is possible to improve the caulking strength between the magnetic steel sheets and prevent the generation of noise even if welding is abolished.
【０００８】これにより、組立作業性の著しい改善を図
ることができるようになる。また、一方のブロックのカ
シメ用突起を他方のブロックの透孔内に止めることで完
成状態の固定子鉄心の表面からカシメ用突起が出ないよ
うにすることもできるものである。As a result, remarkable improvement in assembling workability can be achieved. Also, by stopping the swaging projection of one block in the through hole of the other block, the swaging projection can be prevented from protruding from the surface of the completed stator core.
【０００９】請求項２の発明の電動機用固定子鉄心の製
造方法は、電磁鋼板に、当該電磁鋼板の軸線方向の一方
に突出し、他方が凹陥すると共に、積層される他の複数
枚の電磁鋼板のカシメ用突起の凹陥部分に進入する寸法
を有した複数のカシメ用突起と、このカシメ用突起が進
入可能な複数の透孔を形成する工程と、複数枚の電磁鋼
板を積層することにより各カシメ用突起を重合させたブ
ロックを少なくとも二つ形成する工程と、形成された一
方のブロックのカシメ用突起を他方のブロックの透孔に
挿入し、加圧してカシメる工程を実施するものである。According to a second aspect of the present invention, there is provided a method for manufacturing a stator core for an electric motor, comprising: a plurality of electromagnetic steel plates which are protruded in one direction in an axial direction of the electromagnetic steel plate and the other of which is dented; A plurality of caulking projections having dimensions to enter the recessed portion of the caulking projection, a step of forming a plurality of through holes through which the caulking projection can enter, and laminating a plurality of electromagnetic steel sheets A step of forming at least two blocks formed by polymerizing the caulking projections, and a step of inserting the caulking projections of one of the formed blocks into the through holes of the other block and caulking by pressing. .
【００１０】請求項２の発明によれば、積層される他の
複数枚の電磁鋼板のカシメ用突起の凹陥部分に進入する
寸法を有した複数のカシメ用突起を電磁鋼板に形成し、
複数枚の電磁鋼板を積層し、各カシメ用突起を重合した
ブロックを少なくとも二つ形成して、一方のブロックの
カシメ用突起を他方のブロックの透孔に挿入し、加圧し
てカシメているので、電磁鋼板相互のカシメ強度が向上
し、それによって、同様に溶接を廃止することが可能と
なる。According to the second aspect of the present invention, a plurality of caulking projections having dimensions to enter the recessed portions of the caulking projections of the other plurality of electromagnetic steel sheets to be laminated are formed on the electromagnetic steel sheet,
Since a plurality of electromagnetic steel sheets are laminated, at least two blocks formed by superimposing each caulking protrusion are formed, and the caulking protrusion of one block is inserted into the through hole of the other block, and caulking is performed by pressing. As a result, the crimping strength between the magnetic steel sheets is improved, thereby making it possible to eliminate welding as well.
【００１１】これにより、組立作業性の著しい改善を図
ることができるようになる。また、一方のブロックのカ
シメ用突起を他方のブロックの透孔内に止めることで完
成状態の固定子鉄心の表面からカシメ用突起が出ないよ
うにすることもできるものである。As a result, remarkable improvement in assembling workability can be achieved. Also, by stopping the swaging projection of one block in the through hole of the other block, the swaging projection can be prevented from protruding from the surface of the completed stator core.
【００１２】請求項３の発明の電動機用固定子鉄心の製
造方法は、電磁鋼板に、当該電磁鋼板の軸線方向の一方
に突出し、他方が凹陥すると共に、積層される他の複数
枚の電磁鋼板のカシメ用突起の凹陥部分に進入する寸法
を有した複数のカシメ用突起と、このカシメ用突起が進
入可能な複数の透孔を形成する第一の工程と、複数枚の
電磁鋼板を積層することにより各カシメ用突起を重合さ
せ、所定の間隔を存して半カシメしたブロックを少なく
とも二つ形成する第二の工程と、各ブロックの電磁鋼板
を熱処理する第三の工程と、熱処理された一方のブロッ
クのカシメ用突起を他方のブロックの透孔に挿入し、加
圧してカシメる第四の工程とから成るものである。According to a third aspect of the present invention, there is provided a method of manufacturing a stator core for an electric motor, wherein the electromagnetic steel sheet is protruded in one of the axial directions of the electromagnetic steel sheet, the other is recessed, and the other plurality of electromagnetic steel sheets are laminated. A plurality of crimping projections having dimensions to enter the recessed portions of the crimping projections, a first step of forming a plurality of through holes through which the crimping projections can enter, and laminating a plurality of electromagnetic steel sheets The second step of polymerizing the projections for each caulking by forming, and forming at least two semi-caulked blocks at a predetermined interval, and the third step of heat-treating the electromagnetic steel sheet of each block, A fourth step of inserting the crimping projection of one block into the through hole of the other block and crimping by pressing.
【００１３】請求項３の発明によれば、請求項２の方法
の効果に加えて電磁鋼板を所定の間隔を存して半カシメ
することにより各ブロックを形成し、各ブロックを加圧
カシメする以前に各ブロックの電磁鋼板を熱処理するの
で、この工程で各電磁鋼板の表面に絶縁被膜を形成する
ことができる。これにより、絶縁被膜の無い安価な電磁
鋼板を使用することが可能となり、材料コストの著しい
低減を図ることが可能となる。According to the invention of claim 3, in addition to the effect of the method of claim 2, each block is formed by half caulking the magnetic steel sheet at predetermined intervals, and each block is caulked. Since the magnetic steel sheets of each block are heat-treated before, an insulating film can be formed on the surface of each magnetic steel sheet in this step. This makes it possible to use an inexpensive electromagnetic steel sheet without an insulating coating, and it is possible to significantly reduce material costs.
【００１４】また、熱処理後に加圧してカシメるため、
直角度が向上する利点も奏するものである。In addition, since it is crimped by pressing after heat treatment,
This also has the advantage of improving the squareness.
【００１５】[0015]
【発明の実施の形態】以下、図面に基づき本発明の実施
形態を詳述する。図１は本発明の電動機用固定子鉄心１
の平面図、図２は同正面図（本カシメする以前の状態）
を示している。各図において、固定子鉄心１は例えば誘
導電動機用の固定子鉄心であり、それぞれ所定形状に打
ち抜かれた矩形リング状の複数枚の電磁鋼板２・・・に
より構成されている。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a stator core 1 for a motor according to the present invention.
FIG. 2 is a front view of the same (state before this caulking).
Is shown. In each of the drawings, a stator core 1 is, for example, a stator core for an induction motor, and is composed of a plurality of rectangular ring-shaped electromagnetic steel plates 2 punched into a predetermined shape.
【００１６】この電磁鋼板２の中心には図示しない回転
軸及び回転子が位置することになる円形の開口３が形成
されており、この開口３の周囲に位置して図示しない固
定子巻線が捲回される複数の歯部４が形成されている。
そして、この開口３の中心を通る軸線が前記回転軸の中
心を通過する仮想線となる。At the center of the electromagnetic steel plate 2 is formed a circular opening 3 in which a rotating shaft and a rotor (not shown) are located. A stator winding (not shown) is located around the opening 3. A plurality of teeth 4 to be wound are formed.
An axis passing through the center of the opening 3 is an imaginary line passing through the center of the rotation axis.
【００１７】また、電磁鋼板２の四辺にはそれぞれカシ
メ用突起６と透孔７が並設（それぞれ合計４個）されて
いる。このカシメ用突起６は電磁鋼板２の一部を屈曲す
ることにより形成されており、前記軸線方向の一方に向
けて略逆Ｖ字状に突出すると共に、軸線方向の他方に向
けて凹陥し、そこに凹陥部６Ａを形成している。Further, a crimping projection 6 and a through hole 7 are provided side by side on each of the four sides of the electromagnetic steel sheet 2 (four in total). The caulking projection 6 is formed by bending a part of the electromagnetic steel plate 2, projects in a substantially inverted V shape toward one of the axial directions, and is recessed toward the other in the axial direction. The recess 6A is formed there.
【００１８】更に、このカシメ用突起６の突出寸法は、
例えば当該電磁鋼板２上に二枚の電磁鋼板２、２を仮固
定して積層した状態で、図２に示す如く最上部の電磁鋼
板２まで達する値に設定されている。即ち、カシメ用突
起６は三枚の電磁鋼板２・・に渡る寸法とされている。Further, the protrusion dimensions of the caulking protrusion 6 are as follows:
For example, in a state where the two electromagnetic steel sheets 2 and 2 are temporarily fixed and laminated on the electromagnetic steel sheet 2, the value is set to reach the uppermost electromagnetic steel sheet 2 as shown in FIG. That is, the size of the crimping projection 6 extends over the three electromagnetic steel plates 2.
【００１９】一方、透孔７は前記カシメ用突起６が進入
でき、且つ、加圧によりカシメられる寸法・形状とされ
ている。そして、これらカシメ用突起６・・・や透孔７
・・・が形成された電磁鋼板２は、開口３の中心点に対
して点対称とされている。On the other hand, the through hole 7 has such a size and shape that the caulking projection 6 can enter and can be caulked by pressing. Then, the caulking projections 6 and the through holes 7 are formed.
Are formed point-symmetric with respect to the center point of the opening 3.
【００２０】以上の如き構成で固定子鉄心１の組立手順
を説明する。先ず、絶縁被膜を有しない鋼板素材を用
い、上記の如き電磁鋼板２を打ち抜き、屈曲形成する。
これを実施例では一二枚準備する（第一の工程）。次
に、一二枚の電磁鋼板２・・・を六枚ずつ（半分ずつ）
に分け、それぞれを積層することにより、二つのブロッ
クＢ１とＢ２を形成する。The procedure for assembling the stator core 1 with the above configuration will be described. First, using a steel sheet material having no insulating coating, the above-described electromagnetic steel sheet 2 is punched out and bent.
In the embodiment, one or two sheets are prepared (first step). Next, 12 magnetic steel sheets 2.
And two blocks B1 and B2 are formed by stacking the blocks.
【００２１】この場合、各ブロックＢ１、Ｂ２の電磁鋼
板２のカシメ用突起６を、その上に重合された電磁鋼板
２の凹陥部６Ａ内に挿入する。そして、半カシメするこ
とにより、各電磁鋼板２・・・・・を仮固定する。この
とき、上下に対向する電磁鋼板２、２間には例えば０．
２〜０．５ｍｍの間隔（隙間）が形成される（第二の工
程）。In this case, the crimping projections 6 of the electromagnetic steel plate 2 of each of the blocks B1 and B2 are inserted into the concave portions 6A of the electromagnetic steel plate 2 superposed thereon. Then, each of the magnetic steel sheets 2 is temporarily fixed by caulking half. At this time, for example, the gap between the vertically opposed electromagnetic steel sheets 2 and 2 is set at 0.1 mm.
An interval (gap) of 2 to 0.5 mm is formed (second step).
【００２２】次に、各ブロックＢ１、Ｂ２を熱処理（Ｂ
ＡＢ処理、若しくは、ＢＡ処理）し、各電磁鋼板２・・
・の表面に絶縁被膜を形成する（第三の工程）。次に、
図３に示す如く前記開口３に合致する円柱状のゲージ部
１１が垂直に立設された冶具９を準備し、カシメ用突起
６を上に向けた状態で、前述の如く熱処理したブロック
Ｂ１を冶具９にセットする。このとき、ゲージ部１１は
ブロックＢ１の電磁鋼板２・・・の開口３の内側に密着
し、各電磁鋼板２・・・の軸線方向を垂直方向に指向さ
せる。Next, the blocks B1 and B2 are heat-treated (B
AB treatment or BA treatment)
Form an insulating film on the surface of (3) (third step). next,
As shown in FIG. 3, a jig 9 is prepared in which a cylindrical gauge portion 11 corresponding to the opening 3 is vertically erected, and the block B1 that has been heat-treated as described above is prepared with the caulking protrusion 6 facing upward. Set it on the jig 9. At this time, the gauge portion 11 is in close contact with the inside of the opening 3 of the electromagnetic steel plates 2... Of the block B1, and directs the axial direction of each electromagnetic steel plate 2.
【００２３】次に、ブロックＢ２のカシメ用突起６を下
向きとし、開口３に前記ゲージ部１１を挿通するかたち
でブロックＢ２をブロックＢ１上に載せる（図３参
照）。このとき、ブロックＢ１の最上部のカシメ用突起
６はブロックＢ２の透孔７・・・（各電磁鋼板２・・・
の透孔７・・・が合致してトンネル状となっている）内
に進入すると共に、ブロックＢ２の最下部のカシメ用突
起６はブロックＢ１の透孔７・・・（同様にトンネル
状）内に進入する。Next, the block B2 is placed on the block B1 with the caulking projection 6 of the block B2 facing downward and the gauge portion 11 inserted through the opening 3 (see FIG. 3). At this time, the crimping projections 6 at the top of the block B1 are inserted into the through holes 7 of the block B2.
Of the block B2 are aligned with the through-holes 7... Of the block B2. To enter.
【００２４】次に、図３に矢印で示す如くブロックＢ２
を上から加圧し、本カシメを行う。このとき、各ブロッ
クＢ１、Ｂ２内の電磁鋼板２・・・は相互に密着され、
それらのカシメ用突起６・・・がカシメられると共に、
ブロックＢ１の上部の電磁鋼板２・・のカシメ用突起６
・・はブロックＢ２の下部の電磁鋼板２・・・の透孔７
・・・にカシメられ、ブロックＢ２の下部の電磁鋼板２
・・のカシメ用突起６・・はブロックＢ１の上部の電磁
鋼板２・・・の透孔７・・・にカシメられる（第四の工
程）。Next, as shown by an arrow in FIG.
Is pressurized from above and this caulking is performed. At this time, the electromagnetic steel plates 2 in each of the blocks B1, B2 are in close contact with each other,
While the caulking projections 6 are caulked,
The crimping projection 6 of the magnetic steel sheet 2 on the upper part of the block B1
.. is a through hole 7 of the electromagnetic steel plate 2 at the lower part of the block B2.
, And the electromagnetic steel plate 2 below the block B2
The caulking projections 6 are caulked to the through holes 7 of the electromagnetic steel plates 2 at the top of the block B1 (fourth step).
【００２５】これによって、ブロックＢ１とＢ２は一体
化され、固定子鉄心１が完成する。このように構成する
ことにより、電磁鋼板２・・相互のカシメ強度が向上す
るため、従来の如く溶接を行う必要が無くなる。また、
溶接を廃止しても運転時の騒音（５００Ｈｚ）が生じる
ことも防止できるようになる。Thus, the blocks B1 and B2 are integrated, and the stator core 1 is completed. With this configuration, the crimping strength of the magnetic steel sheets 2... Is improved, so that it is not necessary to perform welding as in the related art. Also,
Even if welding is abolished, noise during operation (500 Hz) can be prevented from occurring.
【００２６】また、ブロックＢ１或いはＢ２のカシメ用
突起６をブロックＢ２或いはＢ１の透孔７内に止めるこ
とができるので、完成状態の固定子鉄心１の表面からカ
シメ用突起６は突出しない。Further, since the swaging protrusion 6 of the block B1 or B2 can be stopped in the through hole 7 of the block B2 or B1, the swaging protrusion 6 does not protrude from the surface of the stator core 1 in a completed state.
【００２７】更に、電磁鋼板２・・を所定の間隔を存し
て半カシメすることにより各ブロックＢ１、Ｂ２を形成
し、各ブロックＢ１、Ｂ２を加圧カシメする以前に各ブ
ロックＢ１、Ｂ２の電磁鋼板２・・・を熱処理している
ので、この工程で各電磁鋼板２・・・の表面に絶縁被膜
が形成される。従って、実施例の如く絶縁被膜の無い安
価な電磁鋼板を使用することが可能となり、材料コスト
の著しい低減を図ることが可能となる。Further, each of the blocks B1 and B2 is formed by caulking the magnetic steel sheets 2... At a predetermined interval to form the respective blocks B1 and B2. Since the magnetic steel sheets 2 are heat-treated, an insulating film is formed on the surface of each of the magnetic steel sheets 2 in this step. Therefore, it is possible to use an inexpensive electromagnetic steel sheet without an insulating coating as in the embodiment, and it is possible to significantly reduce the material cost.
【００２８】また、熱処理後に冶具９にセットして加圧
し、本カシメするため、直角度も良くなる。Also, after the heat treatment, the jig 9 is set and pressurized, and this caulking is performed, so that the squareness is improved.
【００２９】尚、実施例に示した電磁鋼板の枚数やブロ
ックの数、カシメ用突起の寸法などはそれに限られるも
のでは無く、本発明の趣旨を逸脱しない範囲で適宜変更
可能である。Incidentally, the number of electromagnetic steel sheets, the number of blocks, the dimensions of the caulking projections and the like shown in the embodiments are not limited thereto, and can be appropriately changed without departing from the spirit of the present invention.
【００３０】[0030]
【発明の効果】以上詳述した如く請求項１の発明によれ
ば、積層される他の複数枚の電磁鋼板のカシメ用突起の
凹陥部分に進入する寸法を有した複数のカシメ用突起を
電磁鋼板に設け、複数枚の電磁鋼板を積層し、各カシメ
用突起を重合したブロックを少なくとも二つ設けて、一
方のブロックのカシメ用突起を他方のブロックの透孔に
進入させ、カシメることにより固定子鉄心を構成してい
るので、電磁鋼板相互のカシメ強度を向上させ、溶接を
廃止しても騒音の発生を防止することが可能となる。As described above in detail, according to the first aspect of the present invention, a plurality of caulking projections having dimensions to enter the recessed portions of the caulking projections of the other plurality of electromagnetic steel sheets to be laminated are provided. Provided on a steel plate, laminating a plurality of electromagnetic steel sheets, providing at least two blocks in which the projections for each caulking are overlapped, allowing the projections for the caulking of one block to enter the through holes of the other block, and caulking Since the stator core is formed, it is possible to improve the crimping strength between the magnetic steel sheets and to prevent the generation of noise even if welding is abolished.
【００３１】これにより、組立作業性の著しい改善を図
ることができるようになる。また、一方のブロックのカ
シメ用突起を他方のブロックの透孔内に止めることで完
成状態の固定子鉄心の表面からカシメ用突起が出ないよ
うにすることもできるものである。As a result, it is possible to remarkably improve the assembling workability. Also, by stopping the swaging projection of one block in the through hole of the other block, the swaging projection can be prevented from protruding from the surface of the completed stator core.
【００３２】請求項２の発明によれば、積層される他の
複数枚の電磁鋼板のカシメ用突起の凹陥部分に進入する
寸法を有した複数のカシメ用突起を電磁鋼板に形成し、
複数枚の電磁鋼板を積層し、各カシメ用突起を重合した
ブロックを少なくとも二つ形成して、一方のブロックの
カシメ用突起を他方のブロックの透孔に挿入し、加圧し
てカシメているので、電磁鋼板相互のカシメ強度が向上
し、それによって、同様に溶接を廃止することが可能と
なる。According to the second aspect of the present invention, a plurality of caulking projections having dimensions to enter the recessed portions of the caulking projections of the other plurality of electromagnetic steel sheets to be laminated are formed on the electromagnetic steel sheet,
Since a plurality of electromagnetic steel sheets are laminated, at least two blocks formed by superimposing each caulking protrusion are formed, and the caulking protrusion of one block is inserted into the through hole of the other block, and caulking is performed by pressing. As a result, the crimping strength between the magnetic steel sheets is improved, thereby making it possible to eliminate welding as well.
【００３３】これにより、組立作業性の著しい改善を図
ることができるようになる。また、一方のブロックのカ
シメ用突起を他方のブロックの透孔内に止めることで完
成状態の固定子鉄心の表面からカシメ用突起が出ないよ
うにすることもできるものである。As a result, it is possible to significantly improve the assembling workability. Also, by stopping the swaging projection of one block in the through hole of the other block, the swaging projection can be prevented from protruding from the surface of the completed stator core.
【００３４】請求項３の発明によれば、請求項２の方法
の効果に加えて電磁鋼板を所定の間隔を存して半カシメ
することにより各ブロックを形成し、各ブロックを加圧
カシメする以前に各ブロックの電磁鋼板を熱処理するの
で、この工程で各電磁鋼板の表面に絶縁被膜を形成する
ことができる。これにより、絶縁被膜の無い安価な電磁
鋼板を使用することが可能となり、材料コストの著しい
低減を図ることが可能となる。According to the invention of claim 3, in addition to the effect of the method of claim 2, each block is formed by half caulking the magnetic steel sheet with a predetermined interval, and each block is caulked. Since the magnetic steel sheets of each block are heat-treated before, an insulating film can be formed on the surface of each magnetic steel sheet in this step. This makes it possible to use an inexpensive electromagnetic steel sheet without an insulating coating, and it is possible to significantly reduce material costs.
【００３５】また、熱処理後に加圧してカシメるため、
直角度が向上する利点も奏するものである。In addition, since it is caulked by pressurizing after the heat treatment,
This also has the advantage of improving the squareness.
【図１】本発明の実施例の固定子鉄心の平面図である。FIG. 1 is a plan view of a stator core according to an embodiment of the present invention.
【図２】本発明の実施例の固定子鉄心の正面図である。FIG. 2 is a front view of a stator core according to the embodiment of the present invention.
【図３】本発明の実施例の固定子鉄心の本カシメする作
業を説明する図である。FIG. 3 is a diagram for explaining the work of performing the final caulking of the stator core according to the embodiment of the present invention.
１ 固定子鉄心 ２ 電磁鋼板 ６ カシメ用突起 ７ 透孔 ９ 冶具 Ｂ１、Ｂ２ ブロック DESCRIPTION OF SYMBOLS 1 Stator core 2 Electromagnetic steel plate 6 Protrusion for caulking 7 Through hole 9 Jig B1, B2 Block
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長瀬 好彦 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 Ｆターム(参考） 5H002 AA07 AB01 AC06 5H615 AA01 BB01 BB14 PP01 PP06 SS05 SS19 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Nagase 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. F-term (reference) 5H002 AA07 AB01 AC06 5H615 AA01 BB01 BB14 PP01 PP06 SS05 SS19
Claims (3)
成る電動機用固定子鉄心において、 前記電磁鋼板は、当該電磁鋼板の軸線方向の一方に突出
し、他方が凹陥すると共に、積層される他の複数枚の電
磁鋼板のカシメ用突起の凹陥部分に進入する寸法を有し
た複数のカシメ用突起と、このカシメ用突起が進入可能
な複数の透孔とを備えると共に、複数枚の前記電磁鋼板
が積層され、各カシメ用突起が重合されたブロックが少
なくとも二つ設けられ、一方のブロックのカシメ用突起
が他方のブロックの透孔に進入し、カシメられているこ
とを特徴とする電動機用固定子鉄心。1. An electric motor stator core comprising a plurality of electromagnetic steel sheets laminated by caulking, wherein the electromagnetic steel sheet protrudes in one axial direction of the electromagnetic steel sheet, the other is recessed, and the other is laminated. A plurality of crimping projections having dimensions to enter the recessed portions of the crimping projections of the plurality of electromagnetic steel sheets, and a plurality of through holes through which the crimping projections can enter, and the plurality of electromagnetic steel sheets are provided. A motor stator characterized in that at least two blocks are laminated and each of the caulking protrusions is superimposed, and the caulking protrusions of one block enter the through holes of the other block and are caulked. Iron core.
成る電動機用固定子鉄心の製造方法において、 前記電磁鋼板に、当該電磁鋼板の軸線方向の一方に突出
し、他方が凹陥すると共に、積層される他の複数枚の電
磁鋼板のカシメ用突起の凹陥部分に進入する寸法を有し
た複数のカシメ用突起と、このカシメ用突起が進入可能
な複数の透孔を形成する工程と、複数枚の前記電磁鋼板
を積層することにより各カシメ用突起を重合させたブロ
ックを少なくとも二つ形成する工程と、形成された一方
のブロックのカシメ用突起を他方のブロックの透孔に挿
入し、加圧してカシメる工程を実施することを特徴とす
る電動機用固定子鉄心の製造方法。2. A method for manufacturing a stator iron core for a motor, comprising laminating a plurality of electromagnetic steel sheets by caulking, wherein the electromagnetic steel sheet is protruded in one axial direction of the electromagnetic steel sheet, and the other is recessed and laminated. Forming a plurality of caulking projections having dimensions to enter the recessed portions of the caulking projections of the other plurality of electromagnetic steel sheets, and forming a plurality of through holes through which the caulking projections can enter; and A step of forming at least two blocks in which the respective caulking projections are superimposed by laminating the electromagnetic steel sheets, and inserting the caulking projections of one of the formed blocks into the through holes of the other block, and pressurizing. A method for manufacturing a stator core for an electric motor, comprising performing a caulking step.
成る電動機用固定子鉄心の製造方法において、 前記電磁鋼板に、当該電磁鋼板の軸線方向の一方に突出
し、他方が凹陥すると共に、積層される他の複数枚の電
磁鋼板のカシメ用突起の凹陥部分に進入する寸法を有し
た複数のカシメ用突起と、このカシメ用突起が進入可能
な複数の透孔を形成する第一の工程と、複数枚の前記電
磁鋼板を積層することにより各カシメ用突起を重合さ
せ、所定の間隔を存して半カシメしたブロックを少なく
とも二つ形成する第二の工程と、各ブロックの電磁鋼板
を熱処理する第三の工程と、熱処理された一方のブロッ
クのカシメ用突起を他方のブロックの透孔に挿入し、加
圧してカシメる第四の工程とから成ることを特徴とする
電動機用固定子鉄心の製造方法。3. A method for manufacturing a stator core for an electric motor, comprising laminating a plurality of electromagnetic steel sheets by caulking, wherein the electromagnetic steel sheet is protruded in one axial direction of the electromagnetic steel sheet, and the other is recessed and laminated. A plurality of caulking projections having dimensions to enter the recessed portions of the caulking projections of the other plurality of electromagnetic steel sheets, and a first step of forming a plurality of through holes through which the caulking projection can enter, A second step of laminating a plurality of the electromagnetic steel sheets to polymerize the respective caulking projections and forming at least two semi-caulked blocks at a predetermined interval, and heat-treating the electromagnetic steel sheets of each block. The third step and a fourth step of inserting the caulking projection of one of the heat-treated blocks into the through-hole of the other block and caulking by pressurizing, and Manufacturing method .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10200646A JP2000037051A (en) | 1998-07-15 | 1998-07-15 | Stator core for motor and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10200646A JP2000037051A (en) | 1998-07-15 | 1998-07-15 | Stator core for motor and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000037051A true JP2000037051A (en) | 2000-02-02 |
Family
ID=16427869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10200646A Pending JP2000037051A (en) | 1998-07-15 | 1998-07-15 | Stator core for motor and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000037051A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354717A (en) * | 2001-05-25 | 2002-12-06 | Mitsui High Tec Inc | Laminated iron core and manufacturing method therefor |
| KR20030023358A (en) * | 2001-09-13 | 2003-03-19 | 주식회사 엘지이아이 | Methode manufacturing the stator and stator of motor |
| KR20030054990A (en) * | 2001-12-26 | 2003-07-02 | 주식회사 엘지이아이 | Core lamination structure for electric motor and method thereof |
| JP2004023964A (en) * | 2002-06-19 | 2004-01-22 | Mitsui High Tec Inc | Laminated core and its manufacturing method |
| JP2011088200A (en) * | 2009-10-26 | 2011-05-06 | Toyota Boshoku Corp | Pressing method and press apparatus |
| EP2942857A1 (en) * | 2014-05-07 | 2015-11-11 | Pierburg Pump Technology GmbH | Electrical auxiliary unit for a motor vehicle |
| JP2019092298A (en) * | 2017-11-15 | 2019-06-13 | ファナック株式会社 | Stator, block of the stator, and rotary electric machine |
-
1998
- 1998-07-15 JP JP10200646A patent/JP2000037051A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354717A (en) * | 2001-05-25 | 2002-12-06 | Mitsui High Tec Inc | Laminated iron core and manufacturing method therefor |
| US8048509B2 (en) | 2001-05-25 | 2011-11-01 | Mitsui High-Tec, Inc. | Laminated core and method of producing laminated core |
| KR20030023358A (en) * | 2001-09-13 | 2003-03-19 | 주식회사 엘지이아이 | Methode manufacturing the stator and stator of motor |
| KR20030054990A (en) * | 2001-12-26 | 2003-07-02 | 주식회사 엘지이아이 | Core lamination structure for electric motor and method thereof |
| JP2004023964A (en) * | 2002-06-19 | 2004-01-22 | Mitsui High Tec Inc | Laminated core and its manufacturing method |
| JP2011088200A (en) * | 2009-10-26 | 2011-05-06 | Toyota Boshoku Corp | Pressing method and press apparatus |
| EP2942857A1 (en) * | 2014-05-07 | 2015-11-11 | Pierburg Pump Technology GmbH | Electrical auxiliary unit for a motor vehicle |
| JP2019092298A (en) * | 2017-11-15 | 2019-06-13 | ファナック株式会社 | Stator, block of the stator, and rotary electric machine |
| US10622849B2 (en) | 2017-11-15 | 2020-04-14 | Fanuc Corporation | Stator, block of stator, and rotary electrical machine |
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