JPH0134526Y2 - - Google Patents
Info
- Publication number
- JPH0134526Y2 JPH0134526Y2 JP1983143579U JP14357983U JPH0134526Y2 JP H0134526 Y2 JPH0134526 Y2 JP H0134526Y2 JP 1983143579 U JP1983143579 U JP 1983143579U JP 14357983 U JP14357983 U JP 14357983U JP H0134526 Y2 JPH0134526 Y2 JP H0134526Y2
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- stator
- slots
- large number
- punching
- 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
Links
- 238000004080 punching Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000828 alnico Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
この考案は回転電機の固定子鉄心に関するもの
で、特に組立の改善に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a stator core of a rotating electric machine, and particularly relates to an improvement in assembly.
一般に固定子鉄心抜板を積層し、このスロツト
に所定の巻線を施した固定子と、この固定子に対
向するよう配設された回転子と、この回転子に永
久磁石材料が配設された電動機にあつては、固定
子鉄心のスロツトとそのスロツトとスロツトの間
の歯部との間で磁束分布の急変を生じ、そのため
に磁束の形成が悪くなつて回転子の回転むらを生
じる原因となつている。このため固定子鉄心抜板
を所定の枚数積層後、固定子鉄心外周をねじるこ
とにより回転むらを無くすようにしている。この
ようなことから従来固定子鉄心抜板の外周は円周
形状とし、外周をねじられるようにしていた。
In general, a stator is made of laminated stator core blanks and a predetermined winding is applied to the slots of the stator, a rotor is disposed to face the stator, and a permanent magnet material is disposed on the rotor. In the case of electric motors, there is a sudden change in the magnetic flux distribution between the slots of the stator core and the teeth between the slots, which leads to poor magnetic flux formation and uneven rotation of the rotor. It is becoming. For this reason, after stacking a predetermined number of stator core blanks, the outer periphery of the stator core is twisted to eliminate uneven rotation. For this reason, the outer periphery of the stator core punched conventionally has a circular shape so that the outer periphery can be twisted.
しかし、この種の電動機は産業用のロボツトの
駆動用電動機として用いられる場合が多く、用途
面から小形、軽量化が強く要望され、そのため固
定子鉄心抜板の外周は角形形状として小形軽量化
を計る必要があつた。しかしこの固定子鉄心抜板
の外周を角形形状とし、外周をねじると外観形状
が不ぞろいとなり固定子鉄心抜板の外周の角部が
障害となつて、固定子を負荷側、遊び側のブラケ
ツトにより挾持し通しボルトにより固定すること
ができず製品の組立性を損なうといつた欠点があ
つた。 However, this type of electric motor is often used as a drive motor for industrial robots, and from the standpoint of use, there is a strong demand for smaller size and lighter weight. Therefore, the outer periphery of the stator core punched out has a rectangular shape to make it smaller and lighter. I needed to measure it. However, if the outer periphery of the stator core punched is made into a rectangular shape and the outer periphery is twisted, the external shape will be uneven and the corners of the outer periphery of the stator core punched will become an obstacle. The drawback was that it could not be fixed with a clamping bolt, impairing the ease of assembling the product.
この考案は、上記のような欠点を除去するため
になされたもので、固定子鉄心抜板の切り欠きの
位置をそれぞれ抜板1枚、1枚に一方方向に所定
角度づつずらした固定子鉄心抜板を所定の鉄心巾
に積層したことにより、鉄心のスロツトがスキユ
ーされ製品としての組立性が改善されかつ回転む
らのない回転電機を提供することを目的としてい
る。
This idea was made in order to eliminate the above-mentioned drawbacks, and the stator core is made by shifting the position of the notch in each punched stator core by a predetermined angle in one direction for each punched piece. The object of the present invention is to provide a rotating electric machine in which the slots of the core are skewed by stacking the blanks to a predetermined width of the core, improving the assemblability of the product and preventing uneven rotation.
以下、この考案の一実施例を第1図〜第5図に
ついて説明する。
An embodiment of this invention will be described below with reference to FIGS. 1 to 5.
図において、1は反負荷側ブラケツト、2は負
荷側ブラケツトで、この反負荷側ブラケツト1、
負荷側ブラケツト2の軸受部には軸受10が嵌着
され回転軸9を軸支している。3は固定子で上記
反負荷側ブラケツト1および負荷側ブラケツト2
に挾持されボルトによつて固定されるとともにこ
の固定子3には固定子コイル6が装着されてい
る。4は固定子鉄心で、この固定子鉄心4は所定
の鉄心巾となるよう複数の固定子鉄心抜板4a,
4b……4nが積層されている。そしてこの固定
子鉄心抜板4a,4b……4nは、外観形状が角
形形状で内周部には複数個の切り欠きが設けられ
ており、この固定子鉄心抜板4a,4b……4n
の切り欠きの位置は第2図から第5図のように同
一円周方向に抜板1枚ごとに所定角度θ゜づつ回転
させてプレス抜きされている。7は回転子で、こ
の回転子7の周方向に分割、分極された軸方向に
平行な形状でフユライト、アルニコ、布土類磁石
などの永久磁石材料が配設され永久磁石8を形成
している。この回転子7は上記固定子3と所定の
空〓を有して対向し、上記回転軸9に固定されて
いる。 In the figure, 1 is the anti-load side bracket, 2 is the load side bracket, and the anti-load side bracket 1,
A bearing 10 is fitted into the bearing portion of the load-side bracket 2 to pivotally support the rotating shaft 9. 3 is a stator which includes the anti-load side bracket 1 and the load side bracket 2.
The stator 3 is clamped and fixed with bolts, and a stator coil 6 is attached to the stator 3. 4 is a stator core, and this stator core 4 has a plurality of stator core punches 4a,
4b...4n are stacked. These stator core punches 4a, 4b...4n have a rectangular external appearance with a plurality of notches provided on the inner periphery, and these stator core punches 4a, 4b...4n
The positions of the notches are as shown in FIGS. 2 to 5, and each punched sheet is rotated by a predetermined angle .theta..degree. in the same circumferential direction. A rotor 7 is divided in the circumferential direction of the rotor 7 and is polarized in a shape parallel to the axial direction, and a permanent magnet material such as fluorite, alnico, or clay magnet is arranged to form a permanent magnet 8. There is. This rotor 7 faces the stator 3 with a predetermined space therebetween, and is fixed to the rotating shaft 9.
ここで、この電動機の固定子巻線6に三相交流
電源を接続し給電すると固定子3には回転磁界が
発生する。この回転磁界の磁極と回転子7を構成
する永久磁石8とが吸引し、反発し回転子7が回
転させ回転軸9を回転させる。 Here, when a three-phase AC power source is connected to the stator winding 6 of this motor and power is supplied, a rotating magnetic field is generated in the stator 3. The magnetic poles of this rotating magnetic field and the permanent magnets 8 constituting the rotor 7 attract and repel, causing the rotor 7 to rotate and the rotating shaft 9 to rotate.
このように固定子鉄心抜板4a,4b……4n
はそれぞれの固定子鉄心抜板が外形形状に対しθ゜
づつ回転させてプレス抜きしてあるので、これら
の固定子鉄心抜板を所定の鉄心巾となるよう積層
すると切り欠き5がスキユーされ固定子鉄心4の
外周がねじられたことと同様な状態となる。 In this way, stator core punching 4a, 4b...4n
Since each of the stator core punches is pressed and rotated by θ° relative to the external shape, when these stator core punches are stacked to have a predetermined core width, the notches 5 are skewed and fixed. This results in a state similar to that in which the outer periphery of the child core 4 is twisted.
ここで固定子鉄心抜板のスロツトのずらし角度
(回転角度)を示せば、固定子鉄心抜板の積層枚
数をN、スロツト数をn、斜スロツト率をα(普
通は1.0)とすればずらし角度(回転角度)θ゜は
θ゜=360/N×n×α
で表わされる。 Here, if we show the shift angle (rotation angle) of the stator core punched slots, then if the number of laminated stator core punches is N, the number of slots is n, and the diagonal slot ratio is α (usually 1.0), then The angle (rotation angle) θ° is expressed as θ°=360/N×n×α.
以上のように、それぞれの固定子鉄心抜板の1
枚、1枚はそれぞれ切り欠き位置が円周方向の同
一方向に所定角度づつずらして打抜かれ、そして
所定巾に積層されることによりスロツトがスキユ
ーされるので固定子鉄心外周をねじる必要もなく
したがつて固定子鉄心の外周部が整然となり組立
の支障もなくなり製品として容易に組立てること
ができる回転電機の固定子鉄心を得ることができ
る効果がある。
As mentioned above, each stator core punched 1
Each sheet is punched with the notch position shifted by a predetermined angle in the same direction in the circumferential direction, and the slots are skewed by stacking them to a predetermined width, eliminating the need to twist the outer periphery of the stator core. As a result, the outer periphery of the stator core becomes orderly, and there is no problem with assembly, and it is possible to obtain a stator core for a rotating electrical machine that can be easily assembled as a product.
図はこの考案の一実施例による回転電機を説明
するもので、第1図は電動機の半断面図、第2図
〜第5図はそれぞれ固定子鉄心抜板の正面図であ
る。
図において、3は固定子、4は固定子鉄心、4
a,4b,4c,4dは固定子鉄心抜板、5は切
り欠き、6は固定子巻線、7は回転子、8は永久
磁石である。
The figures are for explaining a rotating electrical machine according to an embodiment of the invention, in which FIG. 1 is a half-sectional view of the motor, and FIGS. 2 to 5 are front views of the stator core punched out. In the figure, 3 is a stator, 4 is a stator core, 4
a, 4b, 4c, and 4d are stamped stator cores, 5 is a notch, 6 is a stator winding, 7 is a rotor, and 8 is a permanent magnet.
Claims (1)
心抜板を、多数枚積層して構成され、各抜板の切
り欠きが順次一連に重なり合わされることにより
形成され固定子巻線が内装される多数のスロツト
を有し、かつ固定子鉄心抜板の外周形状が角形形
状である回転電機の固定子鉄心において、上記固
定子鉄心抜板は、積層したときにおける隣接する
固定子鉄心抜板の内周縁のスロツトが、360/N×n ×α(N:鉄心の積層枚数、n:スロツト数、
α:斜スロツト率)の角度にて円周方向の同一方
向にずれるよう打ち抜いて形成され、順次多数枚
積層されて上記スロツトがスキユーされるように
して成ることを特徴とする回転電機の固定子鉄
心。[Scope of Claim for Utility Model Registration] Consisting of a large number of laminated stator core blanks each having a large number of U-shaped notches on the inner periphery, and formed by sequentially overlapping the cutouts of each punch in series. In a stator core for a rotating electric machine, which has a large number of slots in which stator windings are housed, and in which the outer circumferential shape of the stator core punching is a square shape, the stator core punching described above has the following characteristics: The slots on the inner periphery of adjacent stator core punches are 360/N×n×α (N: number of laminated cores, n: number of slots,
A stator for a rotating electrical machine, characterized in that it is formed by punching so as to be offset in the same direction in the circumferential direction at an angle of α: diagonal slot ratio), and is formed by stacking a large number of sheets in sequence so that the slots are skewed. Iron core.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14357983U JPS6051750U (en) | 1983-09-16 | 1983-09-16 | Stator core of rotating electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14357983U JPS6051750U (en) | 1983-09-16 | 1983-09-16 | Stator core of rotating electric machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6051750U JPS6051750U (en) | 1985-04-11 |
JPH0134526Y2 true JPH0134526Y2 (en) | 1989-10-20 |
Family
ID=30320449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14357983U Granted JPS6051750U (en) | 1983-09-16 | 1983-09-16 | Stator core of rotating electric machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6051750U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH066682Y2 (en) * | 1986-02-17 | 1994-02-16 | 三菱電機株式会社 | Frameless stator core |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS531005B2 (en) * | 1972-09-05 | 1978-01-13 | ||
JPS5513664A (en) * | 1978-07-17 | 1980-01-30 | Toshiba Corp | Core of stator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS531005U (en) * | 1976-06-22 | 1978-01-07 | ||
JPS55176049U (en) * | 1979-06-05 | 1980-12-17 |
-
1983
- 1983-09-16 JP JP14357983U patent/JPS6051750U/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS531005B2 (en) * | 1972-09-05 | 1978-01-13 | ||
JPS5513664A (en) * | 1978-07-17 | 1980-01-30 | Toshiba Corp | Core of stator |
Also Published As
Publication number | Publication date |
---|---|
JPS6051750U (en) | 1985-04-11 |
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