JPH01138940A - Induction motor stator - Google Patents
Induction motor statorInfo
- Publication number
- JPH01138940A JPH01138940A JP21328188A JP21328188A JPH01138940A JP H01138940 A JPH01138940 A JP H01138940A JP 21328188 A JP21328188 A JP 21328188A JP 21328188 A JP21328188 A JP 21328188A JP H01138940 A JPH01138940 A JP H01138940A
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- winding
- insulator
- stator
- core
- 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.)
- Granted
Links
- 230000006698 induction Effects 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 37
- 239000012212 insulator Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 6
- 239000000057 synthetic resin Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241000257465 Echinoidea Species 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】 本発明は、誘導電動機の固定子に関するものである。[Detailed description of the invention] The present invention relates to a stator for an induction motor.
従来より、誘導電動機の固定子は、通常固定子コアの回
転子との対向面側に形成されたスロットに巻線が収納さ
れているもので、スロットからスロットへの渡りの部分
である所謂コイルエンド部分が固定子コアの両側面より
はみ出した状態となっている。Conventionally, the stator of an induction motor usually has windings housed in slots formed on the side of the stator core facing the rotor, and the so-called coil is the transition part from slot to slot. The end portions protrude from both sides of the stator core.
また近年、電動機の小型軽量化および製造工程の短縮化
の目的から、この種の電動機において、巻線が施された
固定子コアを、注入型や射出成形等の手段により樹脂モ
ールド成形して、一体化した固定子を製造することが行
なわれてきている。In addition, in recent years, for the purpose of making electric motors smaller and lighter and shortening the manufacturing process, in this type of electric motor, the stator core with windings is molded in resin by means such as injection molding or injection molding. Efforts have been made to manufacture integrated stators.
ところで、この種の固定子は、固定子コアと線との間を
絶縁する必要があり、巻線を固定子コアのスロットに収
納する前記従来の巻線収納方式においては、スロットの
内周形状に略対応するように形成された合成樹脂製の絶
縁物を介装しているが、前記のように樹脂モールド成形
することとした場合、モニルド成形の際の注入圧力によ
ってスロット内の巻線や絶縁物が動き易く、絶縁物を介
して巻線を固定子コアに密着させた状態に保持し難く、
そのため絶縁不良が生じたり、あるいは巻線や絶縁物が
モールド樹脂表面に露出するおそれがある。By the way, in this type of stator, it is necessary to insulate between the stator core and the wires, and in the conventional winding storage method in which the windings are stored in the slots of the stator core, the inner peripheral shape of the slot However, if resin molding is used as described above, the injection pressure during Monild molding may damage the windings in the slot or The insulator moves easily, making it difficult to maintain the winding in close contact with the stator core through the insulator.
Therefore, there is a risk that insulation failure may occur or that the windings or insulators may be exposed on the surface of the molded resin.
そこで本発明は、誘導電動機の小型軽量化および製造工
程の短縮を図るために、巻線が施された固定子コアを樹
脂モールド成形する場合において、固定子コアと巻線と
の間の絶縁手段として、固定子コアとの対応形状をなす
絶縁体を固定子コアに被着し、この外側にトロイダル状
の巻線を施すこととしたものであり、特にこれにより、
前記の被着絶縁体を、巻線によって外側から締め付ける
ようにして固定子コアに対し浮き等のおそれなく密着状
態に確実に保持できるとともに、巻線を密に隙なく巻装
して樹脂モールド成形でき、一体性に優れる丈夫な固定
子を提供するものである。Therefore, in order to reduce the size and weight of an induction motor and shorten the manufacturing process, the present invention provides an insulating means between the stator core and the windings when the stator core with windings is resin molded. In this method, an insulator having a shape corresponding to that of the stator core is attached to the stator core, and a toroidal winding is applied to the outside of the insulator.
By tightening the above-mentioned insulator from the outside with the windings, it is possible to securely hold the insulator in close contact with the stator core without fear of lifting, etc., and the windings are wrapped tightly without gaps and molded with resin. This provides a durable stator with excellent integrity.
すなわち、本発明は、固定子コアの内周に歯部によって
隔設された多数のスロットを有し、この固定子コアに、
このコア形状に略対応するように合成樹脂等により形成
された絶縁体を被着するとともに、この絶縁体を介して
固定子コアの各スロット毎に継鉄部を巻回するトロイダ
ル状の巻線を施し、固定子コアの少なくとも歯部内周端
面を残して巻線を埋め込むように樹脂モールド成形して
なることを特徴とする。That is, the present invention has a plurality of slots spaced apart by teeth on the inner periphery of the stator core, and the stator core has
An insulator made of synthetic resin or the like is attached to approximately correspond to the shape of this core, and a toroidal winding is wound around each slot of the stator core through this insulator. The present invention is characterized in that the stator core is molded with resin so that at least the inner circumferential end surface of the tooth portion of the stator core is left and the winding is embedded therein.
次に本発明の実施例を図面に基いて説明する。Next, embodiments of the present invention will be described based on the drawings.
第１図及び第２図は本発明に係る固定子を示し、第４図
は本発明固定子をもって構成した誘導電動機の概略を示
す。図において、（１）は固定子、（２）は回転子、（
３）（３）は回転子の輔（４）を支承する軸受、（５）
はフレーム部分を示す。1 and 2 show a stator according to the present invention, and FIG. 4 schematically shows an induction motor constructed with the stator of the present invention. In the figure, (1) is the stator, (2) is the rotor, (
3) (3) is the bearing that supports the rotor support (4), (5)
indicates the frame part.
前記の固定子（１）は次のような構成よりなる。The stator (1) has the following configuration.
（１１）は環状もしくは筒状をなす固定子コアであって
、内周側において多数の軸方向のスロット（１２）を隔
設する歯部（１３）とその外周の継鉄部（１４）とから
なる。(11) is a stator core having an annular or cylindrical shape, and has a toothed part (13) which spaced apart a large number of axial slots (12) on the inner circumferential side and a yoke part (14) on the outer circumference thereof. Consisting of
固定子コア（１１）の表面には、このコア形状と略対応
形状をなすように合成樹脂等の絶縁材料により形成され
た絶縁体（２０）が被着され゛ている。An insulator (20) made of an insulating material such as synthetic resin is adhered to the surface of the stator core (11) so as to have a shape substantially corresponding to the shape of the core.
この絶縁体（２０）は、例えば第３図（ａ）および（ｂ
）に示す、″、うに、歯部（１３）及び継鉄部（１４）
のコア形状に略対応して、固定子コア（１１）の外周を
覆う外壁（２１）と、前記外壁（２１）より内方に向っ
て延設され継鉄部（１４）の側面を覆う側面部（２２）
と、該側面部（２２）より内方に向って放射状に突出し
て歯部（１３）の側面を覆う歯相当部（２３）と、前記
側面部（２２）および歯相当部（２３）の側縁より折曲
延成され継鉄部（１４）および歯部（１３）によるスロ
ット内周面を覆う横断面Ｕ字形状の内壁（２４）とが一
体に形成されて、固定子コア＜１１）の軸方向中間で２
分割された割形絶縁体（２０ａ）（２０ｂ）からなり、
この割形絶縁体（２０ａ） （２０ｂ）を固定子コア（
１１）の両側より嵌合し被着している。This insulator (20) is, for example, shown in FIGS.
) shown in ``, sea urchin, tooth part (13) and yoke part (14)
An outer wall (21) that covers the outer periphery of the stator core (11) and a side surface that extends inward from the outer wall (21) and covers the side surface of the yoke (14), substantially corresponding to the core shape of the stator core (11). Part (22)
and a tooth-equivalent portion (23) that protrudes radially inward from the side surface portion (22) and covers the side surface of the tooth portion (13), and the sides of the side surface portion (22) and the tooth-equivalent portion (23). The stator core <11) is formed integrally with an inner wall (24) bent and extended from the edge and having a U-shaped cross section that covers the inner peripheral surface of the slot by the yoke part (14) and the tooth part (13). 2 at the axial middle of
Consisting of divided split insulators (20a) (20b),
These split insulators (20a) (20b) are connected to the stator core (
11) are fitted and attached from both sides.
特にこの絶縁体（２０）には、巻線状態を良好にするつ
ば（２０ｃ）を設けておくことができ、さらにつば（２
０ｃ）に日出線用の導電部材を設けておくことができる
。In particular, this insulator (20) can be provided with a collar (20c) that improves the winding condition.
A conductive member for the Hinode line can be provided at 0c).
そして、前記の絶縁体（２０）を介して、固定子コア（
１１）の各スロット毎に前記継鉄部（１４）を巻回する
トロイダル状の巻線（１５）が施されている。Then, the stator core (
A toroidal winding (15) around which the yoke part (14) is wound is provided for each slot of 11).
この巻線（１５）を施す手段としては、歯部（１３）と
継鉄部（１４）とが一体形成された環状をなす固定子コ
ア（１１）に前記絶縁体（２０）を被嵌した状態で直接
トロイダル状巻線装置を持って巻装するほか、前記固定
子コア（１１）を２分割等の複数に分割形成してお、−
１その分割コアの各スロット毎に絶縁体（２０）を介し
て巻装した後、分割コア同士を接合することができる。The winding (15) can be applied by fitting the insulator (20) onto a stator core (11) having an annular shape in which the teeth (13) and the yoke (14) are integrally formed. In addition to directly winding the stator core (11) with a toroidal winding device in the state, the stator core (11) is divided into a plurality of parts such as two parts, and -
1. After wrapping each slot of the split core with an insulator (20) interposed therebetween, the split cores can be joined to each other.
この場合、分割コアに対応して絶縁体（２０）も分割形
成しておけばよい。環状の固定子コアに巻線するより分
割コアに巻線するほうが能率的である。In this case, the insulator (20) may also be formed in sections corresponding to the divided cores. It is more efficient to wind the wire around the split core than to wind the wire around the annular stator core.
さらに前記のように巻線（１５）が施された固定子コア
（１１）の少なくとも回転子（２）との対向面をなす歯
部（１３）内周端面を残して巻線（１５）を埋め込むよ
うに周知の樹脂モールド法により成形固定してい・る。Further, as described above, the winding (15) is attached to the stator core (11), leaving at least the inner peripheral end surface of the toothed portion (13) forming the surface facing the rotor (2). It is molded and fixed using a well-known resin molding method so as to be embedded.
（１Ｂ）はモールド樹脂の部分を示す。第４図のように
フレーム部分（５）も前記樹脂モールドにより一体構成
すると、固定子（１）とフレーム部分（５）の一体性に
優れ、巻線（１５）の保護効果に優れる。(1B) shows the mold resin part. When the frame portion (5) is also integrally formed with the resin mold as shown in FIG. 4, the stator (1) and the frame portion (5) have excellent integrity, and the winding (15) is excellently protected.
しかして上記した本発明の固定子（１）は、固定子コア
（１１）に、これと略対応形状をなすよう合成樹脂等に
より形成された絶縁体（２０）を被着し、この絶縁体（
２０）を介して各スロット（１２）毎にトロダル状の巻
線（１５）を施しているので、固定子コア（１１）と巻
線（１５）との絶縁が確実に成されるばかりか、この巻
線（１５）自体が巻装の圧力で内心に向って密に巻装さ
れて最小寸法となるとともに、巻線（１５）が緩んで飛
び出すものもなくなり、樹脂モールドに際して、流され
たり表面に露出する等のおそれがない。In the stator (1) of the present invention described above, an insulator (20) made of synthetic resin or the like is attached to the stator core (11) so as to have a shape substantially corresponding to the stator core (11). (
Since the trodal-shaped winding (15) is applied to each slot (12) via the stator core (11) and the winding (15), not only is insulation between the stator core (11) and the winding (15) ensured, but also This winding (15) itself is tightly wound toward the inner center due to the winding pressure, resulting in the smallest dimension, and there is no part of the winding (15) that loosens and pops out. There is no risk of exposure to
殊に、このトロイダル状の巻線（１５）の巻装圧力で、
固定子コア（１１）に被着された絶縁体（２０）が、外
側から強く締め付けられることとなって、固定子コア（
１１）に対し隙を生じさせることなく密着した状態に確
実に保持されることになり、樹脂モールドの際に動いた
り、あるいは使用時の発熱作用によって浮き等の変形が
生じるのをも防止できることになる。In particular, with the winding pressure of this toroidal winding (15),
The insulator (20) attached to the stator core (11) is strongly tightened from the outside, and the stator core (11) is tightly tightened from the outside.
11) It is possible to securely hold the resin in a close contact state without creating any gaps, and it can also prevent movement during resin molding or deformation such as floating due to heat generation during use. Become.
それゆえ、樹脂モールドの際の注入圧力を高くして、あ
るいは粘度の高い樹脂材料を用いて容易確実に成形でき
るとともに、固定子全体の一体性に優れたものとなり、
モールド樹脂部分の外側から機賊的な衝撃を受けた場合
に、その衝撃が内心に向って分散され、結果として丈夫
な固定子を構成でき、耐久性の優れたものとなる。また
前記のように、巻線を固定子コアに対し絶縁体を介して
空隙を存することなく密に巻装できるので、画線効率を
高めることができ、品質が安定する。Therefore, it is possible to easily and reliably mold the resin by increasing the injection pressure or using a resin material with high viscosity, and the stator has excellent integrity as a whole.
When the molded resin part receives an impact from outside, the impact is dispersed inward, resulting in a strong stator with excellent durability. Further, as described above, since the winding wire can be tightly wound around the stator core with the insulator interposed therebetween without leaving any gaps, the drawing efficiency can be increased and the quality can be stabilized.
従って本発明によれば、一体性に優れる丈夫な固定子を
容品かつコスト安価に提供でき、樹脂モールドによる誘
導電動機の小型軽量化に寄与すること大である。Therefore, according to the present invention, a durable stator with excellent integrity can be provided in a compact size and at low cost, and it greatly contributes to the reduction in size and weight of induction motors by resin molding.
第１図は本発明の実施例を示す固定子の一部欠截斜視図
、第２図は同縦断面図、第３図は絶縁体構造を示す一部
の斜視図、第４図は本発明固定子を利用した誘導電動機
を示す縦断面図である。
（１）・・・固定子、（２）・・・回転子、（１１）・
・・固定子コア、（１２）・・・スロット、（１３）・
・・歯部、（１４）・・・継鉄部、（１５）・・・巻線
、（１６）・・・モールド樹脂、（２０）・・・絶縁体
、（２０ａ） （２０ｂ）・・・割形絶縁体。
特許出願人 株式会社芝浦製作所
第１図
第２図
第３図
［ａ］（ｂ）FIG. 1 is a partially cutaway perspective view of a stator showing an embodiment of the present invention, FIG. 2 is a vertical sectional view of the same, FIG. 3 is a partial perspective view showing an insulator structure, and FIG. 4 is a main part of the stator. FIG. 2 is a longitudinal sectional view showing an induction motor using the inventive stator. (1)... Stator, (2)... Rotor, (11)...
・Stator core, (12) ・Slot, (13)・
...Tooth section, (14)...Yoke section, (15)...Winding wire, (16)...Mold resin, (20)...Insulator, (20a) (20b)...・Split insulator. Patent applicant Shibaura Seisakusho Co., Ltd. Figure 1 Figure 2 Figure 3 [a] (b)
Claims (1)
スロットを有し、この固定子コアに、このコア形状に略
対応するように合成樹脂等により形成された絶縁体を被
着するとともに、この絶縁体を介して固定子コアの各ス
ロット毎に継鉄部を巻回するトロイダル状の巻線を施し
、固定子コアの少なくとも歯部内周端面を残して巻線を
埋め込むように樹脂モールド成形してなることを特徴と
する誘導電動機の固定子。1. The stator core has a number of slots spaced apart by teeth on the inner periphery, and an insulator made of synthetic resin or the like is coated on the stator core to approximately correspond to the shape of the core. At the same time, a toroidal winding is applied to wind the yoke part in each slot of the stator core through this insulator, and the winding is embedded leaving at least the inner peripheral end surface of the tooth part of the stator core. A stator for an induction motor characterized by being formed by resin molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21328188A JPH01138940A (en) | 1988-08-27 | 1988-08-27 | Induction motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21328188A JPH01138940A (en) | 1988-08-27 | 1988-08-27 | Induction motor stator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4566379A Division JPS55139062A (en) | 1979-04-13 | 1979-04-13 | Induction motor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17417591A Division JPH04364336A (en) | 1991-07-15 | 1991-07-15 | Stator for induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01138940A true JPH01138940A (en) | 1989-05-31 |
| JPH0152983B2 JPH0152983B2 (en) | 1989-11-10 |
Family
ID=16636511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21328188A Granted JPH01138940A (en) | 1988-08-27 | 1988-08-27 | Induction motor stator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01138940A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5098720A (en) * | 1991-05-24 | 1992-03-24 | Wm. Wrigley Jr. Company | Lignin flavored gum compositions |
| JPH04108353U (en) * | 1991-02-28 | 1992-09-18 | 株式会社富士通ゼネラル | resin mold motor |
| US5798591A (en) * | 1993-07-19 | 1998-08-25 | T-Flux Pty Limited | Electromagnetic machine with permanent magnet rotor |
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| JPS4960201U (en) * | 1972-09-04 | 1974-05-27 | ||
| US3921017A (en) * | 1973-03-13 | 1975-11-18 | Skf Ind Trading & Dev | Electric motor |
| JPS53103104A (en) * | 1977-02-21 | 1978-09-08 | Hitachi Ltd | Compact motor stator molding |
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| US4161669A (en) * | 1976-06-16 | 1979-07-17 | Itw Fastex Italia | Insulating assembly for stator slots of electrical motors |
-
1988
- 1988-08-27 JP JP21328188A patent/JPH01138940A/en active Granted
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|---|---|---|---|---|
| US2662194A (en) * | 1947-10-31 | 1953-12-08 | Sunbeam Corp | Electric motor for shavers and the like |
| US3187211A (en) * | 1962-05-03 | 1965-06-01 | Lear Siegler Inc | Stator construction for high-precision electrical instruments |
| US3394276A (en) * | 1965-01-28 | 1968-07-23 | Cafici Giuseppe | Asynchronous electric motor |
| JPS4837604A (en) * | 1971-09-15 | 1973-06-02 | ||
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| US3921017A (en) * | 1973-03-13 | 1975-11-18 | Skf Ind Trading & Dev | Electric motor |
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| JPS53103104A (en) * | 1977-02-21 | 1978-09-08 | Hitachi Ltd | Compact motor stator molding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04108353U (en) * | 1991-02-28 | 1992-09-18 | 株式会社富士通ゼネラル | resin mold motor |
| US5098720A (en) * | 1991-05-24 | 1992-03-24 | Wm. Wrigley Jr. Company | Lignin flavored gum compositions |
| US5798591A (en) * | 1993-07-19 | 1998-08-25 | T-Flux Pty Limited | Electromagnetic machine with permanent magnet rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0152983B2 (en) | 1989-11-10 |
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