JP3461552B2 - Method of manufacturing stator and split laminated core - Google Patents
Method of manufacturing stator and split laminated coreInfo
- Publication number
- JP3461552B2 JP3461552B2 JP00873394A JP873394A JP3461552B2 JP 3461552 B2 JP3461552 B2 JP 3461552B2 JP 00873394 A JP00873394 A JP 00873394A JP 873394 A JP873394 A JP 873394A JP 3461552 B2 JP3461552 B2 JP 3461552B2
- Authority
- JP
- Japan
- Prior art keywords
- core
- right angle
- stator
- laminated core
- angled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ステータ及び分割
積層コアの製造方法に関し、特に、積層した複数のコア
片を有する分割積層コアを輪状に結合する時の結合を容
易かつ確実に行うための新規な改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a stator and a split laminated core, and more particularly to a method for easily and reliably joining a split laminated core having a plurality of laminated core pieces in a ring shape. Regarding new improvements.
【０００２】[0002]
【従来の技術】従来のステータ及び分割積層コアの製造
方法としては、種々あるが、ここでは、まず、ＤＣブラ
シレスモータ（ＡＣサーボモータ）に多用されているス
テータの場合について述べる。まず、図７において符号
１で示されるものは輪状のステータであり、このステー
タ１は複数のコア片２を積層させて構成し、各歯３によ
り形成されたスロット４内に絶縁を施してコイル５を内
側から巻回し、各歯３毎にコイル５を独立して設けるこ
とにより１歯１極を作る凸極形の集中巻きである。2. Description of the Related Art There are various conventional methods of manufacturing a stator and a split laminated core. Here, the case of a stator often used in a DC brushless motor (AC servomotor) will be described first. First, the reference numeral 1 in FIG. 7 is a ring-shaped stator. The stator 1 is formed by stacking a plurality of core pieces 2, and a coil is formed by insulating inside a slot 4 formed by each tooth 3. 5 is wound from the inside, and a coil 5 is independently provided for each tooth 3 to form one pole for each tooth, which is a convex pole type concentrated winding.
【０００３】前述の場合、１スロット４内におけるコイ
ル断面積の総和が１スロット断面積に占める割合をコイ
ル占有率と云うが、このコイル占有率を図８のように１
００％にすることが特性向上からは理想的であるが、現
在の量産上の巻線技術では図７の状態が限度で約３０％
止まりであった。In the above case, the ratio of the sum of the coil cross-sectional areas in one slot 4 to the one-slot cross-sectional area is called the coil occupancy rate. This coil occupancy rate is 1 as shown in FIG.
It is ideal to set it to 00% in order to improve the characteristics, but in the current winding technology for mass production, the state of FIG.
It was a dead end.
【０００４】最近、この図８の状態を達成する方法とし
て、図９又は図１０の構成が開発されている。すなわ
ち、図９の場合、プレス機により原板（フープ材）から
打抜いた薄い接続部６を介して輪状に形成した複数のコ
イル片２を積層させてステータ１を形成し、このステー
タ１の各歯３毎に、予めコイル５を巻回したボビン７を
嵌入させ、その後、このステータ１を輪状のステータヨ
ーク８内に嵌入して図８で示すコイル占有率１００％を
得ていた。Recently, as a method of achieving the state of FIG. 8, the configuration of FIG. 9 or 10 has been developed. That is, in the case of FIG. 9, a plurality of coil pieces 2 formed in a ring shape are stacked through a thin connecting portion 6 punched from an original plate (hoop material) by a press machine to form a stator 1, and each of the stator 1 is formed. A bobbin 7 having a coil 5 wound in advance is fitted into each tooth 3, and then the stator 1 is fitted into a ring-shaped stator yoke 8 to obtain a coil occupancy rate of 100% shown in FIG.
【０００５】また、図１０で示す方法も図７のようにコ
イル占有率１００％を得ていた。すなわち、原板（フー
プ材）から打抜いた複数のコア片２を積層するが、この
場合のコア片２は、前述の輪状をなすのではなく、輪
（円周）のうちの１角度分（ここでは４０度分）に形成
され、分割された状態の分割積層コア１０を構成し、こ
の各分割積層コア１０にコイル５を巻回した後、これを
複数個（ここでは９個）輪状に接続して輪状のステータ
１を得ている。この場合、各分割積層コア１０は、接続
部１１を介して接続すると共に、組上げ後に溶接（コイ
ル接続を劣化しないようにビーム溶接を採用）にて一体
に構成されている。In the method shown in FIG. 10, the coil occupancy is 100% as shown in FIG. That is, a plurality of core pieces 2 punched out from an original plate (hoop material) are laminated, but in this case, the core pieces 2 do not form the above-mentioned ring shape, but one angle of the ring (circumference) ( In this case, the divided laminated core 10 is formed in a divided state (for 40 degrees), and the coil 5 is wound around each divided laminated core 10, and then a plurality (here, nine) of them are formed into a ring shape. By connecting them, a ring-shaped stator 1 is obtained. In this case, the divided laminated cores 10 are connected to each other through the connecting portions 11 and are integrally formed by welding (using beam welding so as not to deteriorate the coil connection) after the assembling.
【０００６】また、大型発電機では、１度にコア片２を
打抜くことができず、前述と同様に各コア片２を、図１
１及び図１２で示すように、嵌合部１２を介して接続す
るが、又は、孔１３に通しボルト１４を取付けて接続
し、この構成は現在も採用されている。Further, in the large-sized generator, the core pieces 2 cannot be punched at a time, and each core piece 2 can be punched as shown in FIG.
As shown in FIG. 1 and FIG. 12, the connection is made via the fitting portion 12, or the through bolt 14 is attached to the hole 13 for connection, and this configuration is still used.
【０００７】また、各分割積層コア１０を構成する場
合、大型発電機では、歯部３とコア片２とを、図１３で
示すように、別々に形成して後で一体とする方法も採用
されていた。Further, in the case of constructing each of the divided laminated cores 10, in the large generator, a method of separately forming the tooth portion 3 and the core piece 2 and integrating them later is also adopted. It had been.
【０００８】また、図１４で示すように、分割積層コア
１０の歯３にコイル５を巻回した後に、各分割積層コア
１０の各コア片２の形状を２種形成し、各コア片２の一
方の端部２ａが１枚おきに重合することにより、この分
割積層コア１０の両端部は、各端部２ａ１枚おきに突出
して凹凸部２Ａを形成している。従って、コイル５を予
め巻回した各分割積層コア１０を輪状に組立ててステー
タ１を得る場合、各分割積層コア１０の両端部に形成さ
れた突出した端部２ａを、各端部２ａ、２ａ間の凹部２
ｂ内に嵌入することによって輪状に結合させ、最後に、
各端部２ａに形成された各孔１３に通しボルト１４を貫
通させることによってステータコア１全体を強固に組上
げることができる。Further, as shown in FIG. 14, after the coil 5 is wound around the teeth 3 of the divided laminated core 10, two kinds of shapes of each core piece 2 of each divided laminated core 10 are formed. Since one end portion 2a of the other one is superposed on every other sheet, both end portions of the split laminated core 10 are projected at every other end portion 2a to form an uneven portion 2A. Therefore, when the divided laminated cores 10 in which the coil 5 is wound in advance are assembled into a ring shape to obtain the stator 1, the protruding end portions 2a formed at both ends of each divided laminated core 10 are connected to the respective end portions 2a, 2a. Recess 2 between
It is connected in a ring shape by fitting it into b, and finally,
The entire stator core 1 can be firmly assembled by inserting the through bolts 14 into the holes 13 formed in the end portions 2a.
【０００９】[0009]
【発明が解決しようとする課題】従来のステータ及び分
割積層コアは、以上のように構成されているため、次の
ような課題が存在していた。すなわち、前述の図１４で
示すステータの構造は、周方向における嵌合が強固とな
り、かつ、極めて容易であるため、磁気回路としての特
性も良好で、特殊な溶接も不要で製造設備面でも有利で
あるが、実施上の最大の理由は、各コア片の板厚ｔの微
妙な板厚の差△ｔが存在するため、各分割積層コアに同
枚数だけコア片２が積層された場合でも、図１５及び図
１６に示すように、積層厚さＬの差△Ｌが発生し、△ｔ
×Ｎ枚＝△Ｌ＝Ｌ１−Ｌ２となり、さらに、各端部１０
ａに直角部１０Ａが形成されているため、図１６で示す
ように、各分割積層コア１０、１０の各端部１０ａを各
凹部１０ｂ内に完全に嵌合させることができず、量産上
の最大の障害となっていた。Since the conventional stator and split laminated core are configured as described above, there have been the following problems. That is, since the stator structure shown in FIG. 14 described above is firmly fitted in the circumferential direction and is extremely easy, it has good characteristics as a magnetic circuit and does not require special welding, which is advantageous in terms of manufacturing equipment. However, the biggest reason for implementation is that there is a subtle difference Δt in the plate thickness t of each core piece, so that even if the same number of core pieces 2 are stacked in each split laminated core. As shown in FIGS. 15 and 16, a difference ΔL in the laminated thickness L occurs, and Δt
× N sheets = ΔL = L 1 −L 2 and each end 10
Since the right-angled portion 10A is formed in a, as shown in FIG. 16, the end portions 10a of the split laminated cores 10 and 10 cannot be completely fitted into the recesses 10b, which is a problem in mass production. It was the biggest obstacle.
【００１０】本発明は、以上のような課題を解決するた
めになされたもので、特に、積層した複数のコア片を有
する分割積層コアを輪状に結合する時の結合を容易かつ
確実に行うようにしたステータ及び分割積層コアの製造
方法を提供することを目的とする。The present invention has been made in order to solve the above problems, and in particular, it facilitates and surely joins a ring-shaped divided laminated core having a plurality of laminated core pieces. It is an object of the present invention to provide a method for manufacturing the stator and the split laminated core.
【００１１】[0011]
【課題を解決するための手段】本発明によるステータ
は、全体形状がＴ字型をなしヨーク部と歯部とからなる
複数のコア片を積層させて得た複数の分割積層コアを円
周方向に結合させて輪状に構成するステータにおいて、
前記コア片の前記ヨーク部は一端に非直角部を有し他端
に直角部を有すると共に前記非直角部側のみにボルトを
通すための孔が設けられ、前記各コア片を積層してなる
前記分割積層コアの両側は厚さ方向に沿って前記直角部
と非直角部が交互に位置し、複数個の前記分割積層コア
を円周方向に接続する場合、前記非直角部を前記直角部
に当接させるようにした構成であり、また、前記非直角
部は、テーパ部からなる構成であり、また、前記非直角
部は、曲面部からなるこ構成であり、また、本発明によ
る分割積層コアの製造方法は、原板から全体形状がＴ字
型をなしヨーク部と歯部とからなる複数のコア片をプレ
ス機により打抜き、前記各コア片を積層させるようにし
た分割積層コアの製造方法において、前記コア片を前記
プレス機により打抜く前に、前記原板の前記ヨーク部の
一端のみを前記プレス機押型によりプレス加工し、打抜
き後の前記一端に前記非直角部が形成されると共に他端
に直角部が形成され、前記非直角部側のみに孔が形成さ
れると共に厚さ方向に沿って前記直角部と非直角部が交
互に位置し、前記非直角部が前記直角部よりも突出させ
る方法であり、また、原板から全体形状がＴ字型をなし
ヨーク部と歯部とからなる複数のコア片をプレス機によ
り打抜き、前記各コア片を積層させるようにした分割積
層コアの製造方法において、前記コア片を前記プレス機
により打抜いた後に、前記原板の前記ヨーク部の一端の
みを他のプレス機によりプレス加工し、打抜き後の前記
一端に前記非直角部が形成されると共に他端に直角部が
形成され、前記非直角部側のみに孔が形成されると共に
厚さ方向に沿って前記直角部と非直角部が交互に位置
し、前記非直角部が前記直角部よりも突出させる方法で
あり、また、前記非直角部は、テーパ部からなる方法で
あり、また、前記非直角部は、曲面部からなる方法であ
る。A stator according to the present invention has a plurality of divided laminated cores obtained by laminating a plurality of core pieces each having a T shape as a whole and including a yoke portion and a tooth portion in a circumferential direction. In the stator that is connected to
The yoke portion of the core piece has a non-right angle portion at one end and a right angle portion at the other end, and a hole for passing a bolt is provided only on the non-right angle portion side, and the core pieces are laminated. On both sides of the divided laminated core, the right angled portion and the non-right angled portion are alternately located along the thickness direction, and when connecting the plurality of divided laminated cores in the circumferential direction, the non-right angled portion is formed into the right angled portion. The non-right angle portion is a tapered portion, and the non-right angle portion is a curved surface portion. The laminated core is manufactured by a method in which a plurality of core pieces each having a T-shape as a whole and having a yoke portion and a tooth portion are punched from a base plate by a press machine to laminate the core pieces. In the method, the core piece is struck by the press machine. Before the punching, only one end of the yoke portion of the original plate is pressed by the press die, and the non-right angle portion is formed at the one end after punching and the right angle portion is formed at the other end. This is a method in which the right-angled portions and the non-right-angled portions are alternately positioned along the thickness direction while holes are formed only on the part side, and the non-right-angled portions protrude more than the right-angled portions, and the whole plate In a method of manufacturing a split laminated core, wherein a plurality of core pieces each having a T-shape and having a yoke portion and a tooth portion are punched by a press machine to stack the core pieces, the core pieces are pressed by the press machine. After punching by, only one end of the yoke portion of the original plate is pressed by another press machine, the non-right angle portion is formed at the one end after punching and a right angle portion is formed at the other end, Hole only on non-right angle side The right-angled portions and the non-right-angled portions are formed alternately along the thickness direction and formed so that the non-right-angled portions protrude more than the right-angled portions. The non-perpendicular portion is a curved surface portion.
【００１２】[0012]
【作用】本発明によるステータ及び分割積層コアの製造
方法においては、分割製造コアの各コア片のヨーク部の
一端部のみに従来の直角部と異なる非直角部であるテー
パ部又は曲面部が形成されているため、図１６のよう
に、各端部と各凹部が互いに若干対応の状態であって
も、図４で示すように、各非直角部が凹部内にスムーズ
に案内され、各端部と各凹部との容易かつ確実な嵌合を
得ることができる。従って、従来、量産では不可能とさ
れていた各分割積層コア同志の結合を達成し、特性の良
好なステータを得ることができる。In the method of manufacturing the stator and the split laminated core according to the present invention, the tapered portion or the curved surface portion which is a non-right angle portion different from the conventional right angle portion is formed only at one end of the yoke portion of each core piece of the split manufacturing core. Therefore, even if the respective end portions and the respective concave portions are slightly corresponding to each other as shown in FIG. 16, the respective non-right angle portions are smoothly guided into the concave portions as shown in FIG. It is possible to obtain an easy and reliable fitting between the portion and each recess. Therefore, it is possible to achieve the coupling of the divided laminated cores, which has been impossible in the past in mass production, and to obtain a stator having excellent characteristics.
【００１３】[0013]
【実施例】以下、図面と共に本発明によるステータ及び
分割積層コアの好適な実施例について詳細に説明する。
なお、従来例と同一又は同等部分には同一符号を付して
説明する。図１から図６迄は、本発明によるステータ及
び分割積層コアの製造方法を示すためのもので、図１は
プレス工程を示す概略構成図、図２はプレス状態を詳細
に示す構成図、図３は分割積層コアを示す斜視図、図４
は各分割積層コアの嵌合状態を示す説明図、図５は組立
後の分割積層コアを示す斜視図、図６は組立後のステー
タを示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a stator and a split laminated core according to the present invention will be described in detail below with reference to the drawings.
It should be noted that the same or equivalent parts as those of the conventional example are designated by the same reference numerals for description. 1 to 6 are for illustrating a method of manufacturing a stator and a split laminated core according to the present invention, FIG. 1 is a schematic configuration diagram showing a pressing process, FIG. 2 is a configuration diagram showing a pressed state in detail, FIG. 3 is a perspective view showing a split laminated core, FIG.
Is an explanatory view showing a fitted state of each divided laminated core, FIG. 5 is a perspective view showing the divided laminated core after assembly, and FIG. 6 is a perspective view showing the stator after assembled.
【００１４】図１において、符号３０で示されるものは
渦巻状に巻回され例えば硅素鋼板で構成されたフープ材
よりなる原板であり、この原板３０はプレス機３１によ
りプレス加工され、次々とコア片２が形成される。尚、
このコア片２は、図３で示されるように、全体形状がＴ
字型をなし、円周方向に接続されるヨーク部２Ｅと、こ
のヨーク部２Ｅと一体の歯部３とから構成されている。In FIG. 1, a reference numeral 30 is an original plate made of a hoop material which is spirally wound and is made of, for example, a silicon steel plate. The original plate 30 is pressed by a press machine 31, and the cores are successively formed. Piece 2 is formed. still,
As shown in FIG. 3, the core piece 2 has an overall shape of T
The yoke portion 2E has a character shape and is connected in the circumferential direction, and a tooth portion 3 integral with the yoke portion 2E.
【００１５】前述の原板３０からコア片２を打抜く場
合、図２で示すように、原板３０の打抜くコア片２（打
抜く前は点線にて示している）の一端２ａ相当部分を予
めプレス機３１の押型（図示せず）でプレスすることに
より、この第１状態Ａで示すように、この各一端２ａは
押圧されて図３及び図４で示すようにテーパ部からなる
非直角部２Ｂａに形成される。When the core piece 2 is punched from the above-described original plate 30, as shown in FIG. 2, a portion corresponding to one end 2a of the core piece 2 of the original plate 30 to be punched (shown by a dotted line before punching) is previously prepared. By pressing with a pressing die (not shown) of the press machine 31, as shown in the first state A, each one end 2a is pressed and the non-right angle portion formed of the tapered portion as shown in FIGS. 3 and 4. It is formed to 2Ba.
【００１６】すなわち、この非直角部２Ｂａは、この一
端２ａをヨーク部２Ｅの面２ｃと平行な方向から見た場
合に鋭角状のテーパ部をなしているもので、このテーパ
部に限ることなく、例えば、Ｒを有する曲面部とした場
合も後述の作用を得ることができるものである。That is, the non-right angle portion 2Ba forms an acute-angled taper portion when the one end 2a is viewed in a direction parallel to the surface 2c of the yoke portion 2E, and is not limited to this taper portion. For example, even in the case of a curved surface portion having R, the operation described below can be obtained.
【００１７】前記原板３０から打抜くコア片２は、図２
に示すように全て同一形状のものではなく、一端２ａの
延設方向が全く逆方向に形成されている二種類からなる
もので、第３状態Ｃと第４状態Ｄに示すように形成され
ている。すなわち、第３状態Ｃでのコア片２は、左側に
一端２ａが形成され、第４状態Ｄでもコア片２は右側に
一端２ａが形成されるようにプレスされ、各々反対側の
他端２Ａには従来の端部と同様に板厚方向に直線状に切
断し、面と直交するようにプレス型でプレスされた直角
部２ｄを各々有している。The core piece 2 punched from the original plate 30 is shown in FIG.
As shown in FIG. 3, the two ends are not of the same shape, but the ends 2a are formed so that the extending directions thereof are completely opposite to each other. They are formed as shown in the third state C and the fourth state D. There is. That is, the core piece 2 in the third state C is pressed so that the one end 2a is formed on the left side and the core piece 2 is also formed on the right side in the fourth state D so that the other end 2A on the opposite side is formed. In the same manner as the conventional end portion, each has a right-angled portion 2d that is cut linearly in the plate thickness direction and pressed by a press die so as to be orthogonal to the surface.
【００１８】従って、原板３０を打抜く場合、第１状態
Ａでは、第３、第４状態Ｃ、Ｄの各一端２ａに相当する
位置に前述したように押型（図示せず）で押すことによ
り前記非直角部２Ｂａが形成される。次に、第２状態Ｂ
で各一端２ａに相当する位置に孔１３を形成し、第３状
態Ｃでプレス型（図示せず）により左側に一端２ａを有
するコア片２を打抜き、第４状態Ｄで右側に一端２ａを
有するコア片２が得られる。従って、実際の原板３０の
流れ方向は矢印Ｘであるため、打抜きの状態は、第４状
態Ｄが最初に打抜かれ、次に、第３状態Ｃが打抜かれる
プレス工程の順序である。Therefore, when punching the original plate 30, in the first state A, by pushing it to the position corresponding to each one end 2a of the third and fourth states C and D with the pressing die (not shown) as described above. The non-right angle portion 2Ba is formed. Next, the second state B
A hole 13 is formed at a position corresponding to each end 2a, the core piece 2 having one end 2a on the left side is punched out by a press die (not shown) in the third state C, and one end 2a is formed on the right side in the fourth state D. The core piece 2 having is obtained. Therefore, since the actual flow direction of the original plate 30 is the arrow X, the punching state is the order of the pressing steps in which the fourth state D is punched first and then the third state C is punched.
【００１９】次に、前述のようにして打抜かれた一対の
互いに形状が異なる２種のコア片２を図３のように交互
に厚さ方向に積層させると、前述の非直角部２Ｂａを有
する一端２ａは、隣接するコア片２の直角部２ｄを挟む
状態、すなわち、非直角部２Ｂａと直角部２ｄとが交互
に位置して積重ねられ、各非直角部２Ｂａ間には前記直
角部２ｄによる凹部２ｂが形成された分割積層コア１０
が形成される。従って、前記非直角部２Ｂａが直角部２
ｄよりも突出して形成されている。Next, a pair of two kinds of core pieces 2 having different shapes punched out as described above are alternately laminated in the thickness direction as shown in FIG. 3 to have the above-mentioned non-rectangular portion 2Ba. The one end 2a is sandwiched between the right-angled portions 2d of the adjacent core pieces 2, that is, the non-right-angled portions 2Ba and the right-angled portions 2d are alternately positioned and stacked, and the non-right-angled portions 2Ba are separated by the right-angled portions 2d. Divided laminated core 10 in which concave portion 2b is formed
Is formed. Therefore, the non-right angle portion 2Ba is the right angle portion 2
It is formed to project more than d.
【００２０】前記分割積層コア１０の歯部３にコイル５
を巻回して図５に示すように、１歯１極を構成すること
ができ、この分割積層コア１０を必要数だけ円周方向に
沿って輪状に結合することにより図６に示す輪状のステ
ータ１を構成することができる。A coil 5 is attached to the tooth portion 3 of the split laminated core 10.
As shown in FIG. 5, one tooth and one pole can be formed by winding a plurality of the divided laminated cores 10 in a ring shape along the circumferential direction to form a ring-shaped stator shown in FIG. 1 can be configured.
【００２１】前述のステータ１を構成する場合、図４で
示すように、一対の分割積層コア１０の各端部２ａ同志
を結合する場合、実際には、従来例で述べたように、各
コア片２の板厚ｔの差△ｔにより嵌合が難しいところで
あるが、端部２ａがテーパ部又は曲面部よりなる非直角
部２Ｂａであるため、各非直角部２Ｂａ同志が滑り合い
容易に嵌合し、各非直角部２Ｂａは凹部２ｂ内に挿入さ
れて直角部２ｄに当接することにより各端部２ａ同志が
強固に結合する。なお、前述の実施例に限らず、コア片
２をプレス機３１で打抜いた後に、このコア片２の端部
２ａを他のプレス機等を介して押圧し、非直角部２Ｂａ
を形成するようにできる。When constructing the above-mentioned stator 1, as shown in FIG. 4, when the ends 2a of the pair of split laminated cores 10 are joined together, in practice, as described in the conventional example, each core is It is difficult to fit due to the difference Δt in the plate thickness t of the piece 2, but since the end portion 2a is the non-rectangular portion 2Ba consisting of the tapered portion or the curved surface portion, the non-perpendicular portions 2Ba are slidably fitted together. Then, the non-right-angled portions 2Ba are inserted into the recesses 2b and come into contact with the right-angled portions 2d, so that the end portions 2a are firmly coupled to each other. Not limited to the above-mentioned embodiment, after the core piece 2 is punched by the press machine 31, the end portion 2a of the core piece 2 is pressed by another press machine or the like to obtain the non-right angle portion 2Ba.
Can be formed.
【００２２】[0022]
【発明の効果】本発明によるステータ及び分割積層コア
の製造方法は、以上のように構成されているため、次の
ような効果を得ることができる。すなわち、分割積層コ
アを輪状に組立てることは困難であったが、各コア片の
ヨーク部の一端をテーパ部等の非直角部とすることによ
り、各非直角部同志が滑り合うため極めて容易に結合さ
せることができ、高性能な分割積層コアを用いたステー
タの量産を可能とするものである。Since the stator and the split laminated core manufacturing method according to the present invention are configured as described above, the following effects can be obtained. That is, it was difficult to assemble the split laminated core into a ring shape, but by making one end of the yoke portion of each core piece a non-right angle portion such as a taper portion, the non-right angle portions slide each other, which makes it extremely easy. This enables mass production of stators that can be combined and that use high-performance split laminated cores.
【図１】プレス工程を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a pressing process.
【図２】プレス状態を詳細に示す構成図である。FIG. 2 is a configuration diagram showing a pressed state in detail.
【図３】分割積層コアを示す斜視図である。FIG. 3 is a perspective view showing a split laminated core.
【図４】分割積層コアの嵌合状態を示す説明図である。FIG. 4 is an explanatory view showing a fitted state of the split laminated core.
【図５】組立後の分割積層コアを示す斜視図である。FIG. 5 is a perspective view showing the split laminated core after assembly.
【図６】組立後のステータを示す斜視図である。FIG. 6 is a perspective view showing the stator after assembly.
【図７】従来のモータのステータを示す構成図である。FIG. 7 is a configuration diagram showing a stator of a conventional motor.
【図８】図７のコイルを占有率１００％とした構成図で
ある。8 is a configuration diagram in which the coil of FIG. 7 has an occupancy rate of 100%.
【図９】従来の他のステータを示す分解斜視図である。FIG. 9 is an exploded perspective view showing another conventional stator.
【図１０】従来の他のステータを示す分解斜視図であ
る。FIG. 10 is an exploded perspective view showing another conventional stator.
【図１１】従来の他のステータを示す分解斜視図であ
る。FIG. 11 is an exploded perspective view showing another conventional stator.
【図１２】従来の他のステータを示す分解斜視図であ
る。FIG. 12 is an exploded perspective view showing another conventional stator.
【図１３】従来の他のステータを示す分解斜視図であ
る。FIG. 13 is an exploded perspective view showing another conventional stator.
【図１４】従来の分割積層コアを示す斜視図である。FIG. 14 is a perspective view showing a conventional split laminated core.
【図１５】図１４のステータの寸法を示す斜視図であ
る。15 is a perspective view showing the dimensions of the stator of FIG.
【図１６】従来の分割積層コアの結合を示す構成図であ
る。FIG. 16 is a configuration diagram showing a combination of conventional split laminated cores.
【図１７】従来のステータを示す分解斜視図である。FIG. 17 is an exploded perspective view showing a conventional stator.
２ コア片 ２ａ 一端 ２Ｂａ 非直角部 ２ｄ 直角部 ２Ｅ ヨーク部 ２Ａ 他端 ３ 歯部 １０ 分割積層コア １３ 孔 ３０ 原板 ３１ プレス機 2 core pieces 2a One end 2Ba Non-right angle part 2d right angle part 2E Yoke part 2A other end 3 teeth 10 split laminated core 13 holes 30 original plate 31 Press machine
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02K 1/18 H02K 15/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) H02K 1/18 H02K 15/02
Claims (7)
歯部(3)とからなる複数のコア片(2)を積層させて得た複
数の分割積層コア(10)を円周方向に結合させて輪状に構
成するステータにおいて、 前記コア片(2)の前記ヨーク部(2E)は一端に非直角部(2B
a)を有し他端に直角部を有すると共に前記非直角部(2B
a)側のみにボルト(14)を通すための孔(13)が設けられ、
前記各コア片(2)を積層してなる前記分割積層コア(10)
の両側は厚さ方向に沿って前記直角部(2d)と非直角部(2
Ba)が交互に位置し、複数個の前記分割積層コア(10)を
円周方向に接続する場合、前記非直角部(2Ba)を前記直
角部(2d)に当接させるように構成したことを特徴とする
ステータ。1. A plurality of split laminated cores (10) obtained by laminating a plurality of core pieces (2) each having a T shape as a whole and comprising a yoke portion (2E) and a tooth portion (3) are circled. In a stator that is circumferentially coupled to form a ring shape, the yoke portion (2E) of the core piece (2) has a non-right angle portion (2B
a) and has a right-angled portion at the other end and the non-right-angled portion (2B
A hole (13) for passing the bolt (14) is provided only on the a) side,
The divided laminated core (10) formed by laminating the core pieces (2).
Both sides of the right-angled portion (2d) and non-right-angled portion (2d) along the thickness direction.
Ba) are alternately located, and when connecting the plurality of divided laminated cores (10) in the circumferential direction, the non-right angle portion (2Ba) is configured to abut the right angle portion (2d). Stator characterized by.
ることを特徴とする請求項１記載のステータ。2. The stator according to claim 1, wherein the non-perpendicular portion (2Ba) is a tapered portion.
ことを特徴とする請求項１記載のステータ。3. The stator according to claim 1, wherein the non-rectangular portion (2Ba) is a curved surface portion.
ーク部(2E)と歯部(3)とからなる複数のコア片(2)をプレ
ス機(31)により打抜き、前記各コア片(2)を積層させる
ようにした分割積層コアの製造方法において、前記コア
片(2)を前記プレス機(31)により打抜く前に、前記原板
(30)の前記ヨーク部(2E)の一端(2a)のみを前記プレス機
(31)押型によりプレス加工し、打抜き後の前記一端(2a)
に前記非直角部(2Ba)が形成されると共に他端(2A)に直
角部(2d)が形成され、前記非直角部(2Ba)側のみに孔(1
3)が形成されると共に厚さ方向に沿って前記直角部(2d)
と非直角部(2Ba)が交互に位置し、前記非直角部(2Ba)が
前記直角部(2d)よりも突出していることを特徴とする分
割積層コアの製造方法。4. A plurality of core pieces (2) each having a T-shape as a whole and having a yoke portion (2E) and a tooth portion (3) are punched from a raw plate (30) by a press machine (31), In the method for manufacturing a split laminated core in which the core pieces (2) are laminated, before the core piece (2) is punched by the press machine (31), the original plate is
Only one end (2a) of the yoke portion (2E) of (30) is pressed by the press machine.
(31) One end (2a) after punching by stamping
The non-rectangular portion (2Ba) is formed on the other end (2A) and a right-angled portion (2d) is formed at the other end (2A), and the hole (1
3) is formed and the right-angled portion (2d) is formed along the thickness direction.
And the non-right angle part (2Ba) are alternately located, and the non-right angle part (2Ba) projects more than the right angle part (2d).
ーク部(2E)と歯部(3)とからなる複数のコア片(2)をプレ
ス機(31)により打抜き、前記各コア片(2)を積層させる
ようにした分割積層コアの製造方法において、前記コア
片(2)を前記プレス機(31)により打抜いた後に、前記原
板(30)の前記ヨーク部(2E)の一端(2a)のみを他のプレス
機によりプレス加工し、打抜き後の前記一端(2a)に前記
非直角部(2Ba)が形成されると共に他端(2A)に直角部(2
d)が形成され、前記非直角部(2Ba)側のみに孔(13)が形
成されると共に厚さ方向に沿って前記直角部(2d)と非直
角部(2Ba)が交互に位置し、前記非直角部(2Ba)が前記直
角部(2d)よりも突出していることを特徴とする分割積層
コアの製造方法。5. A plurality of core pieces (2) each having a T-shape as a whole and having a yoke portion (2E) and a tooth portion (3) are punched from a raw plate (30) by a press machine (31), In the method for manufacturing a split laminated core in which core pieces (2) are laminated, after punching the core pieces (2) by the press machine (31), the yoke portion (2E) of the original plate (30). Only one end (2a) is pressed by another press machine, the non-right angle part (2Ba) is formed at the one end (2a) after punching, and the right angle part (2A) is formed at the other end (2A).
d) is formed, the hole (13) is formed only on the non-right angle part (2Ba) side, and the right angle part (2d) and the non-right angle part (2Ba) are alternately located along the thickness direction, The method for manufacturing a split laminated core, wherein the non-right-angled portion (2Ba) projects more than the right-angled portion (2d).
ることを特徴とする請求項４又は５記載の分割積層コア
の製造方法。6. The method for manufacturing a split laminated core according to claim 4, wherein the non-perpendicular portion (2Ba) is a tapered portion.
ことを特徴とする請求項４又は５記載の分割積層コアの
製造方法。7. The method for manufacturing a split laminated core according to claim 4, wherein the non-perpendicular portion (2Ba) is a curved surface portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00873394A JP3461552B2 (en) | 1994-01-28 | 1994-01-28 | Method of manufacturing stator and split laminated core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00873394A JP3461552B2 (en) | 1994-01-28 | 1994-01-28 | Method of manufacturing stator and split laminated core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07222383A JPH07222383A (en) | 1995-08-18 |
| JP3461552B2 true JP3461552B2 (en) | 2003-10-27 |
Family
ID=11701160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00873394A Expired - Fee Related JP3461552B2 (en) | 1994-01-28 | 1994-01-28 | Method of manufacturing stator and split laminated core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3461552B2 (en) |
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| US8205320B2 (en) | 2007-11-22 | 2012-06-26 | Mitsubishi Electric Corporation | Method of manufacturing a rotating electric machine |
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| Publication number | Publication date |
|---|---|
| JPH07222383A (en) | 1995-08-18 |
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