JP3206715B2 - Electric motor - Google Patents
Electric motorInfo
- Publication number
- JP3206715B2 JP3206715B2 JP32035095A JP32035095A JP3206715B2 JP 3206715 B2 JP3206715 B2 JP 3206715B2 JP 32035095 A JP32035095 A JP 32035095A JP 32035095 A JP32035095 A JP 32035095A JP 3206715 B2 JP3206715 B2 JP 3206715B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- winding
- insulating layer
- inner groove
- shaped tooth
- 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
Landscapes
- Induction Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電動機に係り、詳しくは
固定子の絶縁構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor, and more particularly, to an insulating structure of a stator.
【０００２】[0002]
【従来の技術】従来の電動機の固定子は、図４に示すよ
うに、固定子鉄心１の継鉄部１ａからＩ字型の歯部１ｂ
を等間隔に設け、このＩ字型の歯部の一つ置きの基端よ
り両側に対称なＬ字型の歯部１ｃ、１ｄを設ける。同Ｌ
字型の歯部の内側と外側に、夫々内溝２と外溝３が形成
される。2. Description of the Related Art As shown in FIG. 4, a conventional motor stator includes an I-shaped tooth 1b extending from a yoke 1a of a stator core 1.
Are provided at equal intervals, and symmetric L-shaped teeth 1c and 1d are provided on both sides from the base end of every other I-shaped tooth. L
An inner groove 2 and an outer groove 3 are formed on the inside and outside of the V-shaped tooth portion, respectively.
【０００３】そして、少なくとも回転子と相対向する前
記歯部の先端を除き、前記内溝と外溝に溝絶縁層４ａ、
４ｂを一体に形成し、絶縁部材の樹脂によってプレモー
ルドして前記固定子鉄心を覆う。[0003] Except for at least the tip of the tooth portion facing the rotor, the groove and the groove are formed in the inner groove and the outer groove.
4b is integrally formed, and is pre-molded with a resin of an insulating member to cover the stator core.
【０００４】ここで、前記内側巻線あるいは外側巻線を
収納する前記内溝あるいは外溝の収納部の溝絶縁層４ｃ
の肉厚と、前記巻線の導入部の溝絶縁層４ａ、４ｂの肉
厚を均一になるように一体形成し、前記内溝と次の内溝
の間に内側巻線５を、前記外溝と次の外溝の間に外側巻
線６を直巻して固定子を構成する。Here, the groove insulating layer 4c of the storage portion of the inner groove or the outer groove for accommodating the inner winding or the outer winding.
And the thickness of the groove insulating layers 4a and 4b of the introduction portion of the winding are integrally formed so as to be uniform, and the inner winding 5 is inserted between the inner groove and the next inner groove. The outer winding 6 is wound directly between the groove and the next outer groove to form a stator.
【０００５】この結果、前記溝絶縁層の厚さが、同じで
あり薄いため、前記内溝と外溝の開口部２ａ、３ａから
反対側に流れ込む樹脂が流れ難く、充填不良を起こすお
それがある問題があった。As a result, since the thickness of the groove insulating layers is the same and thin, the resin flowing from the inner groove and the outer groove to the opposite sides from the openings 2a, 3a is difficult to flow, and there is a possibility that defective filling may occur. There was a problem.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上記従来の
問題点に鑑みなされたもので、電動機の固定子鉄心に絶
縁部材を一体成形または装着する場合に、薄肉成形の充
填不良を防止し、品質を向上した電動機を提供すること
を目的とする。SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and it is an object of the present invention to prevent a defective filling in thin-wall molding when an insulating member is integrally formed or mounted on a stator core of a motor. It is an object of the present invention to provide a motor with improved quality.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、固定子鉄心の継鉄部からＩ字型の歯部を等間隔に設
け、このＩ字型の歯部の一つ置きの基端より両側に対称
なＬ字型の歯部を設け、同Ｌ字型の歯部の内側と外側
に、夫々内溝と外溝を形成し、少なくとも回転子と相対
向する前記歯部の先端を除き、樹脂によってプレモール
ドして前記固定子鉄心を覆い、前記内溝と外溝に溝絶縁
層を一体に形成し、前記内溝と次の内溝の間に内側巻線
を、前記外溝と次の外溝の間に外側巻線を直巻してなる
固定子を備えた電動機において、前記内側巻線あるいは
外側巻線を収納する前記内溝あるいは外溝の収納部の溝
絶縁層を除き、前記巻線の導入部の溝絶縁層の肉厚を、
前記内溝と外溝の開口部から奥に徐々に厚くするように
形成してなることを特徴とする。In order to achieve the above object, I-shaped teeth are provided at equal intervals from the yoke of the stator core, and every other I-shaped tooth is provided as a base. A symmetrical L-shaped tooth portion is provided on both sides from the end, and an inner groove and an outer groove are formed inside and outside the L-shaped tooth portion, respectively, and at least the tip of the tooth portion facing the rotor , Except that the stator core is covered by pre-molding with resin, a groove insulating layer is integrally formed in the inner groove and the outer groove, and an inner winding is formed between the inner groove and the next inner groove. In a motor provided with a stator having an outer winding wound directly between a groove and a next outer groove, a groove insulating layer of a storage portion of the inner groove or the outer groove for storing the inner winding or the outer winding. Except for the thickness of the groove insulating layer of the introduction portion of the winding,
It is characterized in that the inner groove and the outer groove are formed so as to gradually increase in depth from the opening.
【０００８】あるいは、固定子鉄心の継鉄部からＩ字型
の歯部を等間隔に設け、このＩ字型の歯部の一つ置きの
基端より両側に対称なＬ字型の歯部を設け、同Ｌ字型の
歯部の内側と外側に、夫々内溝と外溝を形成し、少なく
とも回転子と相対向する前記歯部の先端を除き、樹脂に
よって前記固定子鉄心を覆い、前記内溝と外溝に溝絶縁
層を一体に形成したインシュレ−タを設け、同インシュ
レ−タを前記内溝と外溝に装着し、その上に、前記内溝
と次の内溝の間に内側巻線を、前記外溝と次の外溝の間
に外側巻線を直巻してなる固定子を備えた電動機におい
て、前記内側巻線あるいは外側巻線を収納する前記内溝
あるいは外溝の収納部の溝絶縁層を除き、前記巻線の導
入部の溝絶縁層の肉厚を、前記内溝と外溝の開口部から
奥に徐々に厚くするように形成してなることを特徴とす
る。Alternatively, I-shaped teeth are provided at equal intervals from the yoke of the stator core, and L-shaped teeth symmetrical on both sides from the base end of every other I-shaped tooth. Provided, an inner groove and an outer groove are formed on the inside and outside of the L-shaped tooth portion, respectively, except for at least the tip of the tooth portion facing the rotor, and cover the stator core with resin. An insulator in which a groove insulating layer is integrally formed in the inner groove and the outer groove is provided, and the insulator is mounted in the inner groove and the outer groove. On the insulator, a gap between the inner groove and the next inner groove is provided. In a motor provided with a stator formed by directly winding an outer winding between the outer groove and the next outer groove, the inner groove or the outer groove accommodating the inner winding or the outer winding. Except for the groove insulating layer in the groove accommodating portion, the thickness of the groove insulating layer in the introduction portion of the winding is gradually increased from the opening portions of the inner groove and the outer groove. And characterized by being formed like.
【０００９】そして、前記導入部の溝絶縁層の厚さを、
前記固定子鉄心の中心から放射状に厚くしてなることを
特徴とする。[0009] The thickness of the groove insulating layer of the introduction portion is
The stator core is radially thicker from the center of the stator core.
【００１０】一方、前記収納部の溝絶縁層の肉厚を、前
記導入部の溝絶縁層の肉厚よりも薄く形成してなること
を特徴とする。On the other hand, the thickness of the groove insulating layer of the storage portion is formed to be smaller than the thickness of the groove insulating layer of the introduction portion.
【００１１】[0011]
【作用】上記の構成によれば、前記内側巻線あるいは外
側巻線を収納する前記内溝あるいは外溝の収納部の溝絶
縁層を除き、前記巻線の導入部の溝絶縁層の肉厚を、前
記内溝と外溝の開口部から奥に徐々に厚くするように形
成した。According to the above construction, the thickness of the groove insulating layer at the leading portion of the winding is excluding the groove insulating layer at the storage portion of the inner groove or the outer groove for storing the inner winding or the outer winding. Was formed so as to be gradually thicker from the opening of the inner groove and the outer groove to the back.
【００１２】このため、電動機の固定子鉄心に絶縁部材
を一体成形または装着する場合に、薄肉成形の充填不良
を防止することができる。For this reason, when the insulating member is integrally formed or mounted on the stator core of the electric motor, it is possible to prevent a defective filling in the thin-wall molding.
【００１３】[0013]
【実施例】本発明の実施例を添付図面を参照して詳細に
説明する。なお、従来例と同じ部分の符号は同一とす
る。図１は、本発明による電動機の横断面図であり、図
２は、図１の要部拡大断面図、図３は、他の実施例を示
す要部拡大断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same parts as in the conventional example. FIG. 1 is a transverse sectional view of a motor according to the present invention, FIG. 2 is an enlarged sectional view of a main part of FIG. 1, and FIG. 3 is an enlarged sectional view of a main part showing another embodiment.
【００１４】まず、本発明の電動機の固定子について説
明する。この固定子は、図１に示すように、固定子鉄心
１の継鉄部１ａからＩ字型の歯部１ｂを等間隔に設け、
このＩ字型の歯部の一つ置きの基端より両側に対称なＬ
字型の歯部１ｃ、１ｄを設ける。同Ｌ字型の歯部の内側
と外側に、夫々内溝２と外溝３が形成される。First, the stator of the electric motor according to the present invention will be described. In this stator, as shown in FIG. 1, I-shaped tooth portions 1b are provided at equal intervals from a yoke portion 1a of a stator core 1;
L that is symmetrical on both sides from every other base end of this I-shaped tooth
The tooth-shaped teeth 1c and 1d are provided. An inner groove 2 and an outer groove 3 are formed inside and outside the L-shaped tooth portion, respectively.
【００１５】そして、少なくとも回転子と相対向する前
記歯部の先端を除き、前記内溝と外溝に溝絶縁層を一体
に形成し、絶縁部材の樹脂によってプレモールドして前
記固定子鉄心を覆う。A groove insulating layer is formed integrally with the inner groove and the outer groove except for at least the tip of the tooth portion facing the rotor, and the stator core is pre-molded with a resin of an insulating member. cover.
【００１６】あるいは、図には示さないが、少なくとも
回転子と相対向する前記歯部の先端を除き、樹脂によっ
て前記固定子鉄心を覆い、前記内溝と外溝に溝絶縁層を
一体に形成したインシュレ−タを設け、同インシュレ−
タを前記内溝と外溝に装着してもよい。Alternatively, although not shown in the figure, the stator core is covered with resin except for at least the tips of the teeth facing the rotor, and a groove insulating layer is formed integrally with the inner and outer grooves. Insulated insulator is provided.
May be mounted in the inner groove and the outer groove.
【００１７】そして、前記内溝と次の内溝の間に内側巻
線５を、前記外溝と次の外溝の間に外側巻線６を直巻し
てなる固定子を構成する。A stator is formed by directly winding the inner winding 5 between the inner groove and the next inner groove and the outer winding 6 between the outer groove and the next outer groove.
【００１８】ここで、前記内側巻線あるいは外側巻線を
収納する前記内溝あるいは外溝の収納部の溝絶縁層４ｃ
を除き、前記巻線の導入部の溝絶縁層４ａ、４ｂの肉厚
を、前記内溝と外溝の開口部２ａ、３ａから奥に徐々に
厚くするように形成する。この結果、樹脂が流れ易くな
り、充填不良を防止することができる。Here, the groove insulating layer 4c of the accommodating portion of the inner groove or the outer groove for accommodating the inner winding or the outer winding.
Except that the thickness of the groove insulating layers 4a and 4b at the introduction part of the winding is gradually increased from the openings 2a and 3a of the inner and outer grooves. As a result, the resin flows more easily, and poor filling can be prevented.
【００１９】そして、図２に示すように、前記導入部の
溝絶縁層４ａ、４ｂの厚さを、前記固定子鉄心の中心Ｏ
から放射状に厚くする。これは、巻線機のノズルが固定
子鉄心の中心から放射状の位置に動くためである。Then, as shown in FIG. 2, the thickness of the groove insulating layers 4a and 4b of the introduction portion is adjusted to the center O of the stator core.
From radially thicker. This is because the nozzle of the winding machine moves to a radial position from the center of the stator core.
【００２０】あるいは、図３に示すように、前記導入部
の溝絶縁層４ａ、４ｂの厚さを、前記内側巻線と外側巻
線を巻装する巻線機のノズルの幅より少し広い溝幅ｄに
なるように形成してもよい。これは、前記巻線機のノズ
ルが通る幅まで前記溝絶縁層を厚くして、樹脂の流れを
良好とし、充填不良を防止するためである。Alternatively, as shown in FIG. 3, the thickness of the groove insulating layers 4a and 4b at the introduction portion is set to be slightly larger than the width of the nozzle of the winding machine for winding the inner winding and the outer winding. It may be formed to have a width d. This is to increase the thickness of the groove insulating layer to a width that allows the nozzle of the winding machine to pass therethrough, improve the flow of resin, and prevent defective filling.
【００２１】一方、前記収納部の溝絶縁層の肉厚４ｃ
を、前記導入部の溝絶縁層の肉厚よりも薄く形成する。
これは、前記収納部における内溝あるいは外溝の有効溝
面積を保ち、巻数の減少を防ぐためである。On the other hand, the thickness 4c of the groove insulating layer of the storage portion
Is formed thinner than the thickness of the groove insulating layer of the introduction portion.
This is to maintain the effective groove area of the inner groove or the outer groove in the storage portion and prevent the number of turns from decreasing.
【００２２】[0022]
【発明の効果】以上のように本発明においては、前記内
側巻線あるいは外側巻線を収納する前記内溝あるいは外
溝の収納部の溝絶縁層を除き、前記巻線の導入部の溝絶
縁層の肉厚を、前記内溝と外溝の開口部から奥に徐々に
厚くするように形成した。As described above, in the present invention, except for the groove insulating layer in the accommodating portion of the inner groove or the outer groove for accommodating the inner winding or the outer winding, the groove insulation of the leading portion of the winding is provided. The thickness of the layer was gradually increased from the opening of the inner groove and the outer groove to the back.
【００２３】この結果、電動機の固定子鉄心に絶縁部材
を一体成形または装着する場合に、樹脂の流れを良好に
保ち、薄肉成形の充填不良を防止し、品質を向上した電
動機を提供することができる。As a result, when the insulating member is integrally formed or mounted on the stator core of the electric motor, it is possible to provide a motor which maintains a good flow of resin, prevents poor filling in thin-wall molding, and improves quality. it can.
【図１】本発明による電動機の一実施例を示す横断面図
である。FIG. 1 is a cross-sectional view showing one embodiment of a motor according to the present invention.
【図２】図１における要部拡大断面図である。FIG. 2 is an enlarged sectional view of a main part in FIG.
【図３】本発明による電動機の他の実施例を示す要部拡
大断面図である。FIG. 3 is an enlarged sectional view of a main part showing another embodiment of the electric motor according to the present invention.
【図４】従来の電動機の一例を示す要部拡大断面図であ
る。FIG. 4 is an enlarged sectional view of a main part showing an example of a conventional electric motor.
１ 固定子鉄心 １ａ 継鉄部 １ｂ Ｉ字型歯部 １ｃ Ｌ字型歯部 １ｄ Ｌ字型歯部 ２ 内溝 ２ａ 開口部 ３ 外溝 ３ａ 開口部 ４ａ 内溝の導入部の溝絶縁層 ４ｂ 外溝の導入部の溝絶縁層 ４ｃ 収納部の溝絶縁層 ５ 内側巻線 ６ 外側巻線 ｄ 溝幅 DESCRIPTION OF SYMBOLS 1 Stator iron core 1a Yoke part 1b I-shaped tooth part 1c L-shaped tooth part 1d L-shaped tooth part 2 Inner groove 2a Opening 3 Outer groove 3a Opening 4a Groove insulating layer at the introduction part of inner groove 4b Outer Groove insulating layer at the introduction of groove 4c Groove insulating layer at housing 5 Inner winding 6 Outer winding d Groove width
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02K 17/08 H02K 15/12 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H02K 17/08 H02K 15/12
Claims (4)
等間隔に設け、 このＩ字型の歯部の一つ置きの基端より両側に対称なＬ
字型の歯部を設け、同Ｌ字型の歯部の内側と外側に、夫
々内溝と外溝を形成し、 少なくとも回転子と相対向する前記歯部の先端を除き、
樹脂によってプレモールドして前記固定子鉄心を覆い、
前記内溝と外溝に溝絶縁層を一体に形成し、前記内溝と
次の内溝の間に内側巻線を、前記外溝と次の外溝の間に
外側巻線を直巻してなる固定子を備えた電動機におい
て、 前記内側巻線あるいは外側巻線を収納する前記内溝ある
いは外溝の収納部の溝絶縁層を除き、前記巻線の導入部
の溝絶縁層の肉厚を、前記内溝と外溝の開口部から奥に
徐々に厚くするように形成してなることを特徴とする電
動機。1. An I-shaped tooth portion is provided at equal intervals from a yoke portion of a stator core, and an L-shaped tooth symmetrical on both sides from every other base end of the I-shaped tooth portion.
Provide an inner groove and an outer groove respectively inside and outside of the L-shaped tooth portion, except for at least the tip of the tooth portion facing the rotor,
Pre-molded with resin to cover the stator core,
A groove insulating layer is integrally formed on the inner groove and the outer groove, and an inner winding is wound directly between the inner groove and the next inner groove, and an outer winding is wound directly between the outer groove and the next outer groove. In the electric motor provided with a stator comprising: Is formed so as to gradually increase in depth from the openings of the inner groove and the outer groove.
等間隔に設け、 このＩ字型の歯部の一つ置きの基端より両側に対称なＬ
字型の歯部を設け、同Ｌ字型の歯部の内側と外側に、夫
々内溝と外溝を形成し、 少なくとも回転子と相対向する前記歯部の先端を除き、
樹脂によって前記固定子鉄心を覆い、前記内溝と外溝に
溝絶縁層を一体に形成したインシュレ−タを設け、 同インシュレ−タを前記内溝と外溝に装着し、 その上に、前記内溝と次の内溝の間に内側巻線を、前記
外溝と次の外溝の間に外側巻線を直巻してなる固定子を
備えた電動機において、 前記内側巻線あるいは外側巻線を収納する前記内溝ある
いは外溝の収納部の溝絶縁層を除き、前記巻線の導入部
の溝絶縁層の肉厚を、前記内溝と外溝の開口部から奥に
徐々に厚くするように形成してなることを特徴とする電
動機。2. An I-shaped tooth portion is provided at equal intervals from a yoke portion of a stator core, and L-shaped teeth symmetrical on both sides from every other base end of the I-shaped tooth portion.
Provide an inner groove and an outer groove respectively inside and outside of the L-shaped tooth portion, except for at least the tip of the tooth portion facing the rotor,
The stator core is covered with a resin, and an insulator in which a groove insulating layer is integrally formed in the inner groove and the outer groove is provided. The insulator is mounted in the inner groove and the outer groove. An electric motor having a stator in which an inner winding is wound directly between an inner groove and a next inner groove and an outer winding is wound directly between the outer groove and the next outer groove, wherein the inner winding or the outer winding is provided. Except for the groove insulating layer of the storage portion of the inner groove or the outer groove for storing the wire, the thickness of the groove insulating layer of the introduction portion of the winding is gradually increased from the opening of the inner groove and the outer groove to the back. An electric motor characterized in that it is formed so as to perform
定子鉄心の中心から放射状に厚くしてなることを特徴と
する請求項１、あるいは請求項２記載の電動機。3. The electric motor according to claim 1, wherein a thickness of the groove insulating layer of the introduction portion is radially increased from a center of the stator core.
入部の溝絶縁層の肉厚よりも薄く形成してなることを特
徴とする請求項１、あるいは請求項２記載の電動機。 Wherein said the thickness of the slot insulation layer of the receiving portion, claim 1, or claim 2, wherein the motor is characterized by being formed thinner than the thickness of the slot insulation layer of said inlet portion .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32035095A JP3206715B2 (en) | 1995-12-08 | 1995-12-08 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32035095A JP3206715B2 (en) | 1995-12-08 | 1995-12-08 | Electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09163698A JPH09163698A (en) | 1997-06-20 |
| JP3206715B2 true JP3206715B2 (en) | 2001-09-10 |
Family
ID=18120503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32035095A Expired - Fee Related JP3206715B2 (en) | 1995-12-08 | 1995-12-08 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3206715B2 (en) |
-
1995
- 1995-12-08 JP JP32035095A patent/JP3206715B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09163698A (en) | 1997-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |