JPH0417539A - Stator of rotary electric machine - Google Patents
Stator of rotary electric machineInfo
- Publication number
- JPH0417539A JPH0417539A JP11817490A JP11817490A JPH0417539A JP H0417539 A JPH0417539 A JP H0417539A JP 11817490 A JP11817490 A JP 11817490A JP 11817490 A JP11817490 A JP 11817490A JP H0417539 A JPH0417539 A JP H0417539A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- spacer
- coil end
- tooth
- air passage
- 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
- 125000006850 spacer group Chemical group 0.000 claims abstract description 30
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 17
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、車両用発電機およびその他任意の回転電機の
固定子に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a stator for a vehicle generator or any other rotating electric machine.
「従来の技術」
車両用発電機等の回転電機の固定子では、第７図に示す
ように、固定子鉄心１のスロット３を通して固定子巻線
４が巻装されている。固定子鉄心１のスロット３には、
インシュレーション６がはめ込まれ、固定子巻線４と固
定子鉄心１とを絶縁している。第６図に示すように、イ
ンシュレーション６は、両端に折り返し部７が形成され
、スロット３の断面形状に合わせてＵ字状に曲げられて
いる。再び第７図を書照し、インシュレーション６の折
り返し部７は固定子鉄心１の端面から突出し、固定子鉄
心１の１ｆ１２と固定子巻線４のコイルエンド５とで包
囲されている。一方、回転電機の図示略の回転子は、ロ
ータコアの両端にコイルエンド５に対向してファンが設
けられており、回転に伴い第８図に示すような冷却風１
３を発生させてコイルエンド５を冷却するようになって
いる。"Prior Art" In a stator of a rotating electric machine such as a vehicle generator, a stator winding 4 is wound through a slot 3 of a stator core 1, as shown in FIG. In the slot 3 of the stator core 1,
Insulation 6 is fitted to insulate stator winding 4 and stator core 1. As shown in FIG. 6, the insulation 6 has folded portions 7 formed at both ends and is bent into a U-shape to match the cross-sectional shape of the slot 3. As shown in FIG. Referring again to FIG. 7, the folded portion 7 of the insulation 6 protrudes from the end face of the stator core 1 and is surrounded by 1f12 of the stator core 1 and the coil end 5 of the stator winding 4. On the other hand, a rotor (not shown) of a rotating electric machine is provided with fans at both ends of the rotor core facing the coil ends 5, and as it rotates, it generates cooling air 1 as shown in FIG.
3 to cool the coil end 5.
「発明が解決しようとする課題」
しかしながら、上記の構成による従来の回転電機の固定
子１２′では、インシュレーション６の折り返し部７内
の空間はＵ字状をなし、両端がコイルエンド５の内周側
に開口しており、外周側に連通していない。このため、
第８図に示すごとく、図示略の回転子の回転に伴いロー
タコアの両端に設けたファンによってもたらされる冷却
風１３が、コイルエンド５の内周側にしか供給されず、
冷却効率が低いという問題点があった。"Problems to be Solved by the Invention" However, in the conventional stator 12' of a rotating electric machine having the above-mentioned configuration, the space inside the folded part 7 of the insulation 6 is U-shaped, and both ends are inside the coil end 5. It is open on the circumferential side and does not communicate with the outer circumferential side. For this reason,
As shown in FIG. 8, the cooling air 13 brought by the fans provided at both ends of the rotor core as the rotor (not shown) rotates is supplied only to the inner peripheral side of the coil end 5.
The problem was that the cooling efficiency was low.
本発明は上記の問題点に鑑みてなされたものであり、冷
却効率が高い、回転電機の固定子を提供することを課題
とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a stator for a rotating electrical machine that has high cooling efficiency.
「課題を解決するための手段」
上記課題を解決するための本発明による回転電機の固定
子は、スロット間の歯と固定子巻線のコイルエンドとの
間に、固定子の半径方向の空気通路を有するスペーサを
設けたことを特徴とする。"Means for Solving the Problems" In order to solve the above problems, a stator for a rotating electrical machine according to the present invention has air in the radial direction of the stator between the teeth between the slots and the coil ends of the stator windings. It is characterized by providing a spacer having a passage.
「作用Ｊ
本発明の上記構成によれば、固定子鉄心のスロット間の
歯と固定子巻線のコイルエンドとの間に、空気通路を有
し半径方向に伸びるスペーサを設けたことによって冷却
風の通路が確保され、回転子の冷却ファンによってもた
らされる冷却風が前記空気通路内を通って外周方向に向
かうから、コイルエンドは内周側のみならずスペーサと
の当接部全体においても冷却され、高い冷却効率が得ら
れる。Effect J According to the above configuration of the present invention, cooling air is generated by providing a spacer having an air passage and extending in the radial direction between the teeth between the slots of the stator core and the coil ends of the stator winding. Since the cooling air provided by the rotor cooling fan passes through the air passage and heads toward the outer circumference, the coil end is cooled not only on the inner circumference side but also in the entire contact area with the spacer. , high cooling efficiency can be obtained.
「実施例」 以下本発明の実施例につき図面を参照して説明する。"Example" Embodiments of the present invention will be described below with reference to the drawings.
第１図は発＠、ｍの固定子の内周側を展開して示す正面
図、第２図は前記固定子の平面図である。FIG. 1 is a front view showing the inner circumferential side of the stator of the stator developed, and FIG. 2 is a plan view of the stator.
固定子鉄心１には、歯２とスロット３とが交互に形成さ
れている。固定子＄１４はスロワ１−３を通して固定子
鉄心ρ巻装され、第１図において固定子鉄心１から上下
方向にそれぞれ突出したコイルエンド５を有する。スロ
・Ｉト３にはインシュレーション６が各１個ず・つはめ
込まれ、固定子鉄心のＩＮ２と固定子＠、蘇４とを電気
的に絶縁し２ている。In the stator core 1, teeth 2 and slots 3 are formed alternately. The stator $14 is wound with a stator core ρ through the thrower 1-3, and has coil ends 5 that respectively project upward and downward from the stator core 1 in FIG. One piece of insulation 6 is fitted into each slot I to 3 to electrically insulate the stator core IN2 from the stator @ and SO4.
インシュトーシジン６は、第す図に示されるように、ス
ロ・・・ｌ−３の断面形状に合わせてｔ１字状に３曲げ
られ、１下両端に折り返１２部７が形成されている。再
び第１図を参照し７、歯２の両端面とコイルエンドらと
の間にはスペーサ８が設けられている。As shown in Figure 2, the insulin 6 is bent into a t1 shape in accordance with the cross-sectional shape of the slot 1-3, and folded portions 12 are formed at both ends of the 1. . Referring again to FIG. 1, spacers 8 are provided between both end surfaces of the teeth 2 and the coil ends.
スペーサ８は熱伝導の良好な樹脂材料からなり、略蒲鉾
状１１７ｉ面に形成され、山川部には肯２に向かう突起
９が立ち上げられている。突起９の先端と歯２の端面と
の間には若干の隙間］Ｏが設けられている。スペーサ８
と歯２の端面とで、固定子１２の半径方向に伸びる空気
通路８Ａが形成される。インシュレーション６の折り返
し部７は、スペーサ８によりコイルエンド５に隙間なく
押し付けられ、折りたたまれている。第２図、第３図に
示されるように、スペーサ８は歯２に等しい数だけ設け
られ、固定子鉄心１の外周側ではリング部材１１と一体
に形成されている。固定子１２は、固定子鉄心１のスロ
ット３を通して固定子巻線４を巻装した後、液体状ある
いは粉体状の絶縁処理樹脂によって固着される。The spacer 8 is made of a resin material with good thermal conductivity, and is formed into a substantially semicylindrical surface 117i, with a protrusion 9 erected in the direction of the arrow 2 at the mountain and river portions. A slight gap O is provided between the tip of the protrusion 9 and the end surface of the tooth 2. Spacer 8
and the end surface of the tooth 2 form an air passage 8A extending in the radial direction of the stator 12. The folded portion 7 of the insulation 6 is pressed against the coil end 5 without any gap by the spacer 8, and is folded. As shown in FIGS. 2 and 3, the spacers 8 are provided in a number equal to the number of teeth 2, and are formed integrally with the ring member 11 on the outer peripheral side of the stator core 1. After the stator winding 4 is wound through the slot 3 of the stator core 1, the stator 12 is fixed with liquid or powdered insulating resin.
一方、図示略の回転子には、ロータコアの両端に、コイ
ルエンド５に対向してファンが設けられている。On the other hand, in the rotor (not shown), fans are provided at both ends of the rotor core, facing the coil ends 5.
「作動」
上記構成の作動につき説明する０発電のために図示略の
回転子が回転駆動されると、磁束が発生する。該磁束に
より固定子巻線４にはｔ流が誘起されるが、これに伴い
固定子巻線４は発熱する。"Operation" When a rotor (not shown) is driven to rotate for zero power generation, which will be explained regarding the operation of the above configuration, magnetic flux is generated. The magnetic flux induces a t current in the stator winding 4, and the stator winding 4 generates heat accordingly.
第４図に示すように、回転子の回転に伴いファンにより
発生された冷却［１３はスペーサ８内の空気通路８Ａを
通って外周側へと向か・う。スペーサ８とコイルエンド
５とは絶縁処理樹脂により固着されているので、コイル
エンド５で発生した熱はスペーサ８に容易に伝達される
。このようにしてコイルエンド５は内周側から外周側に
わたりスペーサ８を介して冷却風１３により冷却される
。As shown in FIG. 4, cooling [13] generated by the fan as the rotor rotates passes through the air passage 8A in the spacer 8 toward the outer circumference. Since the spacer 8 and the coil end 5 are fixed together with the insulating resin, the heat generated at the coil end 5 is easily transferred to the spacer 8. In this way, the coil end 5 is cooled by the cooling air 13 via the spacer 8 from the inner circumferential side to the outer circumferential side.
本実施例によれば、スペーサ８の全長にわたって突起９
を設けたので、伝熱面の拡大により熱交換が促進され、
冷却がより効率的になされる利点がある５
「他の実施例Ｊ
本発明は上記実施例の細部にまで限定されるものではな
く、例えば第５図に承ゴーように、固定子鉄心１の一方
の場面に設けｔ）れるスペーサ８をリング部材１１およ
びイエ／シュレージ３２部１４とを一体に形成し、固定
子鉄心〕の他方に設けられるスペーサ８をリング部材１
１と一体に形成するのであってもよい、このようにすれ
ば第３図、第２図図示のインシュレーシヨン６をすべて
省略でき、部品点数を大幅に減少できる利点がある。According to this embodiment, the projection 9 extends over the entire length of the spacer 8.
, the heat exchange is promoted by expanding the heat transfer surface.
Another embodiment J The present invention is not limited to the details of the above embodiment. For example, as shown in FIG. The spacer 8 provided on one side of the stator core is integrally formed with the ring member 11 and the 32 part 14 of the stator core.
In this way, the insulation 6 shown in FIGS. 3 and 2 can be omitted entirely, and the number of parts can be greatly reduced.
また、第３図図示のリング部ｉｔ’ｌｌは、全周を一体
に形成するのではなく、複数に分割するのであってもよ
い。Further, the ring part it'll shown in FIG. 3 may be divided into a plurality of parts instead of being integrally formed all around.
そして、リング部材１１を省略し、歯２の両端面と同数
のスペーサ８を個別に設けるのであってもよい、 また
、第１図〜第３図に示したスペーサ８の突起９は、省略
するのであってもよく、通風抵抗にならない範囲で複数
個設けるのであってもよい、 そして、スペーサ８の材
質は、樹脂に限定されるものではなく、セラミック、紙
などを用いるのであってもよい、また回転ａｍは電動機
であってもよい。The ring member 11 may be omitted, and the same number of spacers 8 as the end faces of the teeth 2 may be individually provided. Also, the protrusions 9 of the spacers 8 shown in FIGS. 1 to 3 may be omitted. The material of the spacer 8 is not limited to resin, and may be made of ceramic, paper, etc. Further, the rotation am may be an electric motor.
「発明の効果」
以上述べたように、本発明の回転を機の固定子は、スロ
ット間の歯と固定子巻線のコイルエンドとの間に、固定
子の半径方向の空気通路を有するスペーサを設けたこと
を特徴とするから、回転子の冷却ファンによってもたら
される冷却風の通路が確保され、冷却風が前記空気通路
内を通ってコイルエンドの内周側から外周側に向かうか
ら、コイルエンドは内周部のみならずスペーサとの当接
部全体においても冷却され、高い冷却効率が得られると
いう優れた効果がある。"Effects of the Invention" As described above, the stator of the rotating machine of the present invention has spacers having air passages in the radial direction of the stator between the teeth between the slots and the coil ends of the stator windings. Since the cooling air passage provided by the rotor cooling fan is secured, and the cooling air passes through the air passage and flows from the inner circumferential side of the coil end to the outer circumferential side, the coil The end is cooled not only at the inner circumferential portion but also at the entire contact portion with the spacer, which has the excellent effect of providing high cooling efficiency.
第１図〜第４１１！Ｉは本発明の実施例を示し、第１図
は発電機の固定子の内周側を展開して示す正面図、第２
図は前記固定子を示す平面図、第３図はスペーサを示す
斜視図、第４図は第１図のＮ−４線断面図であり、第５
図は本発明の他の実施例であるスペーサを示す斜視図で
あり、第６図はインシュレータの組付につき示す斜視図
であり、第７図、第８図は従来例を示し、第７図は発電
機の固定子の内周側を展開して示す正面図、第８図は第
７図の■−■線断面図である。
１１１．固定子鉄心、 ２０９．歯、 ３１９．スロッ
ト、 ４１１．固定子巻線、 ５１０．コイルエンド、
８０１．スペーサ、
】、２．、、固定子。
第１図
魯
ｒ０Figures 1 to 411! 1 shows an embodiment of the present invention, and FIG.
The figure is a plan view showing the stator, FIG. 3 is a perspective view showing the spacer, FIG. 4 is a sectional view taken along the line N-4 in FIG.
6 is a perspective view showing a spacer according to another embodiment of the present invention, FIG. 6 is a perspective view showing how an insulator is assembled, FIGS. 7 and 8 show a conventional example, and FIG. 8 is a front view showing the inner peripheral side of the stator of the generator expanded, and FIG. 8 is a cross-sectional view taken along the line ■--■ in FIG. 7. 111. Stator core, 209. Teeth, 319. Slot, 411. stator winding, 510. coil end,
801. Spacer, ], 2. ,,stator. Figure 1 Lu r0
Claims (1)
る回転電機の固定子において、 前記スロット間の歯と固定子巻線のコイルエンドとの間
に、固定子の半径方向の空気通路を有するスペーサを設
けた ことを特徴とする回転電機の固定子。[Claims] In a stator for a rotating electrical machine in which a stator winding is wound through slots in a stator core, a stator is provided between the teeth between the slots and the coil ends of the stator winding. A stator for a rotating electric machine, characterized in that a spacer having a radial air passage is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11817490A JP2949774B2 (en) | 1990-05-08 | 1990-05-08 | Rotating electric machine stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11817490A JP2949774B2 (en) | 1990-05-08 | 1990-05-08 | Rotating electric machine stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0417539A true JPH0417539A (en) | 1992-01-22 |
| JP2949774B2 JP2949774B2 (en) | 1999-09-20 |
Family
ID=14729960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11817490A Expired - Lifetime JP2949774B2 (en) | 1990-05-08 | 1990-05-08 | Rotating electric machine stator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2949774B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208060B1 (en) | 1998-05-25 | 2001-03-27 | Denso Corporation | Stator of vehicle AC generator and method of manufacturing the same |
| US6335583B1 (en) | 1998-05-25 | 2002-01-01 | Denso Corporation | Stator of vehicle AC generator and method of manufacturing the same |
| US6400056B1 (en) | 1999-04-14 | 2002-06-04 | Denso Corporation | Stator of rotary electric machine and method for making the same |
| JP2002354737A (en) * | 2001-05-30 | 2002-12-06 | Mitsubishi Electric Corp | Electric rotating machine and hermetic sealed compressor using the same |
| JP2003088025A (en) * | 2001-09-07 | 2003-03-20 | Moric Co Ltd | Armature insulator for rotating electric machine |
| JP2010200492A (en) * | 2009-02-25 | 2010-09-09 | Toyota Motor Corp | Insulator, stator and motor |
| JP2011004472A (en) * | 2009-06-16 | 2011-01-06 | Toyota Motor Corp | Dynamo-electric machine |
| WO2015011492A3 (en) * | 2013-07-26 | 2015-09-17 | Cummins Generator Technologies Limited | Separator for separating windings |
| WO2017026073A1 (en) * | 2015-08-13 | 2017-02-16 | 三菱電機株式会社 | Stator, electric motor, and air conditioner |
| WO2017047247A1 (en) * | 2015-09-17 | 2017-03-23 | 日立オートモティブシステムズ株式会社 | Rotary electric machine |
| WO2017104016A1 (en) * | 2015-12-16 | 2017-06-22 | 三菱電機株式会社 | Stator, stator production method, electric motor, and air conditioning device |
| WO2017146117A1 (en) * | 2016-02-26 | 2017-08-31 | Ntn株式会社 | Insulation bobbin of rotating electric machine |
| JP2017153309A (en) * | 2016-02-26 | 2017-08-31 | Ntn株式会社 | Insulation bobbin for rotary electric machine |
| JP2017153310A (en) * | 2016-02-26 | 2017-08-31 | Ntn株式会社 | Rotary electric machine |
-
1990
- 1990-05-08 JP JP11817490A patent/JP2949774B2/en not_active Expired - Lifetime
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208060B1 (en) | 1998-05-25 | 2001-03-27 | Denso Corporation | Stator of vehicle AC generator and method of manufacturing the same |
| US6335583B1 (en) | 1998-05-25 | 2002-01-01 | Denso Corporation | Stator of vehicle AC generator and method of manufacturing the same |
| US6400056B1 (en) | 1999-04-14 | 2002-06-04 | Denso Corporation | Stator of rotary electric machine and method for making the same |
| US6609289B2 (en) | 1999-04-14 | 2003-08-26 | Denso Corporation | Stator of rotary electric machine and method for making the same |
| JP2002354737A (en) * | 2001-05-30 | 2002-12-06 | Mitsubishi Electric Corp | Electric rotating machine and hermetic sealed compressor using the same |
| JP2003088025A (en) * | 2001-09-07 | 2003-03-20 | Moric Co Ltd | Armature insulator for rotating electric machine |
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| JP2011004472A (en) * | 2009-06-16 | 2011-01-06 | Toyota Motor Corp | Dynamo-electric machine |
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| CN105474517A (en) * | 2013-07-26 | 2016-04-06 | 康明斯发电机技术有限公司 | Separator for separating windings |
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| CN107852044A (en) * | 2015-08-13 | 2018-03-27 | 三菱电机株式会社 | Stator, motor and air conditioner |
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| WO2017026073A1 (en) * | 2015-08-13 | 2017-02-16 | 三菱電機株式会社 | Stator, electric motor, and air conditioner |
| JPWO2017047247A1 (en) * | 2015-09-17 | 2018-02-22 | 日立オートモティブシステムズ株式会社 | Rotating electric machine |
| WO2017047247A1 (en) * | 2015-09-17 | 2017-03-23 | 日立オートモティブシステムズ株式会社 | Rotary electric machine |
| US10566854B2 (en) | 2015-09-17 | 2020-02-18 | Hitachi Automotive Systems, Ltd. | Rotating electric machine |
| WO2017104016A1 (en) * | 2015-12-16 | 2017-06-22 | 三菱電機株式会社 | Stator, stator production method, electric motor, and air conditioning device |
| US10923971B2 (en) | 2015-12-16 | 2021-02-16 | Mitsubishi Electric Corporation | Stator, method of manufacturing stator, motor, and air conditioning apparatus |
| JP2017153310A (en) * | 2016-02-26 | 2017-08-31 | Ntn株式会社 | Rotary electric machine |
| JP2017153309A (en) * | 2016-02-26 | 2017-08-31 | Ntn株式会社 | Insulation bobbin for rotary electric machine |
| WO2017146117A1 (en) * | 2016-02-26 | 2017-08-31 | Ntn株式会社 | Insulation bobbin of rotating electric machine |
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