JP2008199806A - Mold stator, manufacturing method therefor, and mold motor - Google Patents

Mold stator, manufacturing method therefor, and mold motor Download PDF

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JP2008199806A
JP2008199806A JP2007033102A JP2007033102A JP2008199806A JP 2008199806 A JP2008199806 A JP 2008199806A JP 2007033102 A JP2007033102 A JP 2007033102A JP 2007033102 A JP2007033102 A JP 2007033102A JP 2008199806 A JP2008199806 A JP 2008199806A
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stator
molded
winding
thermoplastic
insulator
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JP4894001B2 (en
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Kenjo Akiyoshi
建丞 秋吉
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Yaskawa Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a reliable stator for motor where adherence among thermoplastic mold resin, winding, and an insulator is satisfactory, without disorder of winding, even with respect to high molding pressure by thermoplastic mold resin. <P>SOLUTION: For this mold stator 1, the stator for motor comprises a laminated core 4, an insulator 3 attached to the core, and a self-welded winding 2 provided on the insulator 3 is integrally molded of thermoplastic mold resin reinforced by glass fibers, and is thermoplastic polyester resin where the thermoplastic mold resin 5 and the insulator 3 are reinforced by fibers. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ステータを熱可塑性モールド樹脂でモールドしたモータに関する。   The present invention relates to a motor in which a stator is molded with a thermoplastic mold resin.

従来、モールド樹脂として熱可塑性樹脂を用い、これによりモータのステータを一体に成形する方法が提案されている（例えば、特許文献１参照）。   Conventionally, a method has been proposed in which a thermoplastic resin is used as the mold resin, thereby integrally molding the stator of the motor (for example, see Patent Document 1).

図７はこのような従来のモータにおけるステータの平面図である。図８は図７のＡ−Ａ線における断面図を示している。図中、１０１はステータ、１０２は積層コア、１０３は巻線、１０４はインシュレータ、１０５は熱可塑性モールド樹脂である。積層コア１０２は、熱可塑性樹脂から成るインシュレータ１０４がアンダーモールドされ、巻線１０３が取り付けられている。そして、これを６６ナイロン、ＰＢＴ、ＬＣＰ、ＰＰＳなどの熱可塑性モールド樹脂１０５によって巻線１０３が取り付けられた部分をモールドすることで、ステータ１を成している。モールド樹脂として熱可塑性樹脂を用いた場合、成形圧力が高いことが問題になるが、この例では、射出成形機の金型内で、ステータ１０１の巻線１０３の部分に射出した熱可塑性モールド樹脂１０５が直接当たらない位置に金型のゲート位置を設けて、モールドを行っている。
特許第３５６９８８１号 FIG. 7 is a plan view of a stator in such a conventional motor. FIG. 8 shows a cross-sectional view taken along line AA of FIG. In the figure, 101 is a stator, 102 is a laminated core, 103 is a winding, 104 is an insulator, and 105 is a thermoplastic mold resin. The laminated core 102 is undermolded with an insulator 104 made of a thermoplastic resin, and has a winding 103 attached thereto. And the stator 1 is comprised by molding the part to which the coil | winding 103 was attached by thermoplastic molding resin 105, such as 66 nylon, PBT, LCP, and PPS. When a thermoplastic resin is used as the mold resin, there is a problem that the molding pressure is high. In this example, the thermoplastic mold resin injected into the portion of the winding 103 of the stator 101 in the mold of the injection molding machine. Molding is performed by providing a gate position of a mold at a position where 105 does not directly hit.
Japanese Patent No. 3569881

ところが、従来のモールドステータには、次のような課題があった。   However, the conventional molded stator has the following problems.

射出した熱可塑性モールド樹脂が巻線に当たらないようにした場合、巻線部分に熱可塑性モールド樹脂の未充填が発生しやすいという問題がある。これは、巻線部分は、細かな線が密に巻かれた部分であることから、熱可塑性モールド樹脂が入り難い部分である。よって、熱可塑性モールド樹脂をステータに隙間なく充填するには、巻線部分を中心に充填していく必要がある。巻線付近に未充填が発生した場合、部分放電による絶縁劣化が進み、モータの信頼性が大きく低下するという問題がある。   When the injected thermoplastic mold resin does not hit the winding, there is a problem that the winding portion is likely to be unfilled with the thermoplastic mold resin. This is a portion where the thermoplastic mold resin is difficult to enter because the winding portion is a portion in which fine wires are tightly wound. Therefore, in order to fill the stator with the thermoplastic mold resin without any gap, it is necessary to fill the winding portion around the center. When unfilling occurs in the vicinity of the winding, there is a problem that the insulation deterioration due to partial discharge proceeds and the reliability of the motor is greatly reduced.

また、熱可塑性樹脂は一般的に熱硬化樹脂と比べて巻線との接着性が悪いことから、巻線と熱可塑性モールド樹脂との間で剥がれが生じた場合、部分放電による絶縁劣化が進み、モータの信頼性が大きく低下するという問題もある。   In addition, since thermoplastic resin generally has poor adhesion to the winding compared to thermosetting resin, if the peeling occurs between the winding and the thermoplastic mold resin, insulation deterioration due to partial discharge proceeds. There is also a problem that the reliability of the motor is greatly reduced.

本発明はこのような問題点に鑑みてなされたものであり、射出される熱可塑性モールド樹脂の影響による巻線へのダメージが無く、また熱可塑性モールド樹脂の未充填や剥がれが無い、信頼性の高いモータのモールドステータと、そ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 view of such problems, there is no damage to the winding due to the influence of the injected thermoplastic mold resin, and there is no unfilling or peeling of the thermoplastic mold resin, reliability. It is an object of the present invention to provide a molded stator for a high motor and a method for manufacturing the same.

上記問題を解決するため、本発明は、次のように構成したものである。   In order to solve the above problems, the present invention is configured as follows.

請求項１に記載の発明は、積層されたコアと、前記コアに取り付けたインシュレータと、前記インシュレータの上に設けた自己融着巻線とから構成されるモータ用のステータが、ガラス繊維で強化された熱可塑性モールド樹脂により一体的に成形されたモータのモールドステータにおいて、前記熱可塑性モールド樹脂および前記インシュレータが繊維強化した熱可塑性ポリエステル樹脂としたものである。   According to the first aspect of the present invention, a motor stator including a laminated core, an insulator attached to the core, and a self-bonding winding provided on the insulator is reinforced with glass fiber. In the molded stator of the motor integrally molded with the thermoplastic mold resin, the thermoplastic mold resin and the insulator are made of a thermoplastic polyester resin reinforced with fibers.

請求項２に記載の発明は、積層したコアに熱可塑性樹脂のインシュレータを取り付け、前記インシュレータに自己融着巻線を取り付けてモータ用のステータを形成し、前記ステータを加熱して前記自己着巻線を融着させ、その後前記ステータを熱可塑性モールド樹脂によって一体的に成形するモールドステータの製造方法において、前記インシュレータおよび前記熱可塑性モールド樹脂を繊維強化した熱可塑性ポリエステル樹脂にするものである。   According to a second aspect of the present invention, a thermoplastic resin insulator is attached to the laminated core, a self-fusion winding is attached to the insulator to form a motor stator, and the stator is heated to produce the self-winding In the method of manufacturing a molded stator in which the wires are fused and then the stator is integrally formed with a thermoplastic mold resin, the insulator and the thermoplastic mold resin are made into a fiber reinforced thermoplastic polyester resin.

請求項３に記載の発明は、前記自己融着巻線の融着層は、エポキシ樹脂を主成分とし、巻線を融着する時と成形する時の両方でそれぞれ硬化するよう、二種類の異なる硬化剤を添加したものである。   The invention according to claim 3 is characterized in that the fusion layer of the self-sealing winding is mainly composed of epoxy resin and is cured in two types so as to be cured both when the winding is fused and when the winding is molded. A different curing agent is added.

請求項４に記載の発明は、前記自己着巻線を融着させ、前記ステータの一方のコイルエンドを接着剤で覆って固定した後、前記繊維強化熱可塑性ポリエステル樹脂で一体的に成形するものである。   According to a fourth aspect of the present invention, the self-attached winding is fused, and one coil end of the stator is covered and fixed with an adhesive, and then integrally molded with the fiber-reinforced thermoplastic polyester resin. It is.

請求項５に記載の発明は、前記第１の硬化剤を２、４−ジアミノー６−[２´−メチルイミダゾリルー（１´）]―エチルーｓ−トリアジンとし、前記第２の硬化剤を２−フェニルー４、５−ジヒドロキシメチルイミダゾールとしたものである。   The invention according to claim 5 is characterized in that the first curing agent is 2,4-diamino-6- [2′-methylimidazolyl (1 ′)]-ethyl-s-triazine, and the second curing agent is 2 -Phenyl-4,5-dihydroxymethylimidazole.

請求項６に記載の発明は、前記接着剤により覆って固定した前記コイルエンドを成形機の金型内で前記繊維強化熱可塑性ポリエステル樹脂が射出される側に配置したものである。   According to a sixth aspect of the present invention, the coil end, which is covered and fixed by the adhesive, is arranged in a mold of a molding machine on the side where the fiber-reinforced thermoplastic polyester resin is injected.

請求項７に記載の発明は、前記接着剤をエポキシ樹脂が主成分のものである。   In the seventh aspect of the present invention, the adhesive is mainly composed of an epoxy resin.

請求項８に記載の発明は、請求項１に記載のモールドステータを有するモールドモータである。   The invention according to claim 8 is a molded motor having the molded stator according to claim 1.

請求項９に記載の発明は、 請求項２から７のいずれかに記載の方法により製造されたモールドステータを有するモールドモータである。   The invention according to claim 9 is a molded motor having a molded stator manufactured by the method according to any one of claims 2 to 7.

請求項１に記載の発明によると、熱可塑性モールド樹脂およびインシュレータを、繊維強化した熱可塑性ポリエステル樹脂としているので、絶縁性、耐熱性などが良好なモールドステータとなる。また、自己融着巻線の融着層がエポキシ樹脂を主成分とするものであるので、繊維強化した熱可塑性ポリエステル樹脂およびとの密着性が良く、信頼性の高いモールドステータとなる。   According to the invention described in claim 1, since the thermoplastic mold resin and the insulator are made of a thermoplastic polyester resin reinforced with fibers, a molded stator having good insulation and heat resistance is obtained. In addition, since the fusion layer of the self-fusion winding is mainly composed of epoxy resin, the adhesive is good with the fiber reinforced thermoplastic polyester resin and a highly reliable molded stator.

請求項２に記載の発明によると、巻線の乱れが無く、また巻線と熱可塑性モールド樹脂およびインシュレータとの密着性も良好であるので、信頼性の高いモールドステータを製造することができる。   According to the second aspect of the present invention, since there is no disturbance of the winding and the adhesiveness between the winding and the thermoplastic mold resin and the insulator is good, a highly reliable molded stator can be manufactured.

請求項３に記載の発明によると、熱可塑性モールド樹脂およびインシュレータとして繊維強化した熱可塑性ポリエステル樹脂を用いているので、熱可塑性モールド樹脂で成形する際に、巻線、インシュレータとの密着性がより強固になるので、信頼性の高いモールドステータとなる。   According to the third aspect of the present invention, since the thermoplastic polyester resin reinforced with fiber is used as the thermoplastic mold resin and the insulator, the adhesion with the winding and the insulator is improved when molding with the thermoplastic mold resin. Since it becomes strong, it becomes a highly reliable molded stator.

請求項４に記載の発明によると、自己融着巻線をさらに接着剤で覆って固定するために、熱可塑性樹脂による高い成形圧力に対しても巻線が変形することが無い。したがって、信頼性の高いモールドステータとなる。   According to the fourth aspect of the present invention, since the self-bonding winding is further covered and fixed with an adhesive, the winding does not deform even with a high molding pressure by the thermoplastic resin. Therefore, a highly reliable molded stator is obtained.

請求項５に記載の発明によると、自己融着線の融着温度と、成形温度の両方で硬化するので、巻線の固定が行われると共に、熱可塑性モールド樹脂とインシュレータとの密着性が強固になり、信頼性の高いモールドステータとなる。   According to the invention described in claim 5, since the curing is performed at both the fusion temperature of the self-bonding wire and the molding temperature, the winding is fixed and the adhesiveness between the thermoplastic mold resin and the insulator is strong. Thus, a highly reliable molded stator is obtained.

請求項６に記載の発明によると、最も大きな圧力を受ける成形機の金型内で前記繊維強化熱可塑性ポリエステル樹脂が射出される側のコイルエンドを固定しているため、高い成形圧力に対しても巻線が変形することが無い。したがって、信頼性の高いモールドステータとなる。また、接着部分は一方のコイルエンドのみであるため、コストアップを小さくすることができる。   According to the invention described in claim 6, since the coil end on the side where the fiber-reinforced thermoplastic polyester resin is injected is fixed in the mold of the molding machine that receives the greatest pressure, The winding does not deform. Therefore, a highly reliable molded stator is obtained. Further, since the bonding portion is only one coil end, the cost increase can be reduced.

請求項７に記載の発明によると、接着剤がエポキシ樹脂を主成分とするものであるため、高い成形圧、成形温度であっても巻線が乱れることが無い。また、繊維強化熱可塑性ポリエステル樹脂との密着性も良く、信頼性の高いモールドステータとなる。   According to the seventh aspect of the invention, since the adhesive is mainly composed of an epoxy resin, the winding is not disturbed even at a high molding pressure and molding temperature. Moreover, the adhesiveness with a fiber reinforced thermoplastic polyester resin is also good, and it becomes a reliable mold stator.

請求項８、９に記載の発明によると、信頼性の高いモールドモータを得ることができる。   According to the eighth and ninth aspects of the invention, a highly reliable molded motor can be obtained.

以下、本発明の実施の形態について図を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本発明の実施例１を示すモールドステータ部分の縦断面図、図２は横断面図である。図において、１はモールドステータ、２は自己融着巻線、３は３０％ガラス繊維強化した熱可塑性ポリエチレンテレフタレート樹脂からなるインシュレータ、４はコア、５は１５％ガラス繊維強化した繊維強化ポリエチレンテレフタレート樹脂からなる熱可塑性モールド樹脂、６はコアセグメントである。コア４は分割コアであり、コアシートを必要な枚数だけ積層してコアセグメント６を製作し、これに巻線２を巻きつけたインシュレータ３が取り付けられている。これらコアセグメントは互いに連結され、熱可塑性モールド樹脂５により一体的に成形することで、それぞれが固定され、ステータ１を成している。   FIG. 1 is a longitudinal sectional view of a molded stator portion showing Embodiment 1 of the present invention, and FIG. 2 is a transverse sectional view. In the figure, 1 is a molded stator, 2 is a self-bonding winding, 3 is an insulator made of 30% glass fiber reinforced thermoplastic polyethylene terephthalate resin, 4 is a core, 5 is fiber reinforced polyethylene terephthalate resin reinforced with 15% glass fiber. A thermoplastic mold resin 6 and 6 is a core segment. The core 4 is a divided core, and a core segment 6 is manufactured by laminating a required number of core sheets, and an insulator 3 around which a winding 2 is wound is attached. These core segments are connected to each other, and are integrally molded by a thermoplastic mold resin 5 so that each of them is fixed and constitutes the stator 1.

また、図３は自己融着巻線の断面を示している。７は導体であり、８は絶縁体でポリアミドイミドから成る。また９は自己融着層である。自己融着層９は、熱可塑性の高分子量エポキシ樹脂、ビスフェノールジグリシジルエーテル型エポキシ樹脂、ノボラック型エポキシ樹脂などのエポキシ樹脂を主成分とし、添加剤として熱可塑性ポリエステル樹脂、また２種類の硬化剤から構成されている。   FIG. 3 shows a cross section of the self-bonding winding. 7 is a conductor, and 8 is an insulator made of polyamideimide. Reference numeral 9 denotes a self-bonding layer. The self-bonding layer 9 is mainly composed of an epoxy resin such as a thermoplastic high molecular weight epoxy resin, a bisphenol diglycidyl ether type epoxy resin, or a novolac type epoxy resin, a thermoplastic polyester resin as an additive, and two kinds of curing agents. It is composed of

この様に、自己融着巻線９を用いて、モールドする前に巻線を固定するので、繊維強化ポリエチレンテレフタレートからなる熱可塑性モールド樹脂５で成形しても巻線が乱れることが無い。よって、信頼性の高いモールドステータとなる。また、自己融着巻線２の融着層９がエポキシを主成分としたものであるので、熱可塑性モールド樹脂５、インシュレータ３との密着性がより強固になるので、信頼性の高いモールドステータとなる。   In this way, since the winding is fixed before molding by using the self-bonding winding 9, the winding is not disturbed even if it is molded with the thermoplastic mold resin 5 made of fiber reinforced polyethylene terephthalate. Therefore, it becomes a mold stator with high reliability. Further, since the fusion layer 9 of the self-fusion winding 2 is mainly composed of epoxy, the adhesiveness with the thermoplastic mold resin 5 and the insulator 3 is further strengthened. It becomes.

次に、モールドステータの製造方法について、図４に示した工程に沿って説明する。   Next, a method for manufacturing a molded stator will be described along the steps shown in FIG.

ステータ組み工程において、自己融着巻線２、インシュレータ３が取り付けられたコアセグメント６を連結させることでコア４として組みつける。   In the stator assembling step, the core segment 6 to which the self-bonding winding 2 and the insulator 3 are attached is connected to be assembled as the core 4.

次に、ステータ加熱処理工程において、組みつけられたコア４を加熱炉、又は成形金型内に設置した状態で加熱し、自己融着巻線２自身の融着・固定とインシュレータ３への固着を行う。自己融着巻線２の加熱は１３０℃で５分間行う。自己融着巻線２が融着して固定されるのは、加熱の際に、融着層９に含まれる第１の硬化剤により融着層９が一部硬化することによる。第１の硬化剤としては、２、４−ジアミノー６−[２´−メチルイミダゾリルー（１´）]―エチルーｓ−トリアジン（通称：２ＭＺ−Ａ）など、１３０℃付近でエポキシ樹脂と硬化し始めるものを用いる。   Next, in the stator heat treatment process, the assembled core 4 is heated in a state where it is installed in a heating furnace or a molding die, so that the self-bonding winding 2 itself is fused and fixed and fixed to the insulator 3. I do. The self-bonding winding 2 is heated at 130 ° C. for 5 minutes. The reason why the self-fusion winding 2 is fused and fixed is that the fusion layer 9 is partially cured by the first curing agent contained in the fusion layer 9 during heating. As the first curing agent, 2,4-diamino-6- [2′-methylimidazolyl (1 ′)]-ethyl-s-triazine (common name: 2MZ-A) or the like is cured with an epoxy resin at around 130 ° C. Use what you start with.

次に、ステータモールド工程において、組みつけられたコア４を熱可塑性モールド樹脂５により成形樹脂温度２６０℃で射出成形してモールドステータ１を得た。成形樹脂温度以外の成形条件は、金型温度１００℃、成形圧力７０ＭＰａである。射出成形の際、自己融着巻線２は固定され、インシュレータ３にも固着しているので、巻線の乱れが無い信頼性の高いモールドステータが得られる。また、エポキシ樹脂とガラス繊維強化した熱可塑性ポリエチレンテレフタレートは密着性がよいことから、信頼性の高いモールドステータとなる。さらに、射出される熱可塑性モールド樹脂５の熱により、融着層９に含まれる第２の硬化剤が硬化して熱可塑性モールド樹脂５と強固に密着する。第２の硬化剤としては、２−フェニルー４、５−ジヒドロキシメチルイミダゾール（通称：２ＰＨＺ）など、２００℃近い温度でエポキシ樹脂と硬化するものを用いる。自己融着巻線２と熱可塑性モールド樹脂５の密着性が強固であるので、より信頼性の高いモールドステータとなる。   Next, in the stator molding step, the assembled core 4 was injection-molded with a thermoplastic mold resin 5 at a molding resin temperature of 260 ° C. to obtain a molded stator 1. Molding conditions other than the molding resin temperature are a mold temperature of 100 ° C. and a molding pressure of 70 MPa. At the time of injection molding, since the self-bonding winding 2 is fixed and also fixed to the insulator 3, a highly reliable molded stator without winding disturbance is obtained. Moreover, since the thermoplastic polyethylene terephthalate reinforced with epoxy resin and glass fiber has good adhesion, it becomes a highly reliable molded stator. Further, the second curing agent contained in the fusion layer 9 is cured by the heat of the injected thermoplastic mold resin 5 and is firmly adhered to the thermoplastic mold resin 5. As the second curing agent, one that cures with an epoxy resin at a temperature close to 200 ° C., such as 2-phenyl-4,5-dihydroxymethylimidazole (common name: 2PHZ), is used. Since the adhesion between the self-bonding winding 2 and the thermoplastic mold resin 5 is strong, a more reliable molded stator is obtained.

図５は、本発明の実施例２を示すモールドステータ部分の縦断面図である。   FIG. 5 is a longitudinal sectional view of a molded stator portion showing Embodiment 2 of the present invention.

本発明が実施例１と異なる点は、成形機の金型内で熱可塑性モールド樹脂が射出される側のコイルエンドのみが接着剤１０により覆われ固定されている点である。接着剤１０はエポキシ樹脂を主成分とした接着剤が使用される。   The present invention is different from the first embodiment in that only the coil end on the side where the thermoplastic mold resin is injected is covered and fixed by the adhesive 10 in the mold of the molding machine. An adhesive mainly composed of an epoxy resin is used as the adhesive 10.

次に、モールドステータの製造方法について、図６に示した工程に沿って説明する。
ステータ組み工程において、自己融着巻線２、インシュレータ３が取り付けられたコアセグメント６を連結させることでコア４として組みつける。その後、熱可塑性モールド樹脂が射出される側のコイルエンドに接着剤１０を塗布する。
次に、ステータ加熱処理工程において、組みつけられたコア４を加熱炉、又は成形金型内に設置した状態で加熱し、自己融着巻線２自身の融着・固定とインシュレータ３への固着を行う。自己融着巻線２の加熱は１３０℃で５分間行う。自己融着巻線２が融着して固定されるのは、加熱の際に、融着層９に含まれる第１の硬化剤により融着層９が一部硬化することによる。第１の硬化剤としては、２、４−ジアミノー６−[２´−メチルイミダゾリルー（１´）]―エチルーｓ−トリアジン（通称：２ＭＺ−Ａ）など、１３０℃付近でエポキシ樹脂と硬化し始めるものを用いる。この時、接着剤１０も硬化してコイルエンドが固定される。
次に、ステータモールド工程において、組みつけられたコア４を熱可塑性モールド樹脂５により成形樹脂温度２６０℃で射出成形してモールドステータ１を得た。成形樹脂温度以外の成形条件は、金型温度１００℃、成形圧力７０ＭＰａである。射出成形の際、自己融着巻線２は固定され、インシュレータ３にも固着され、さらにコイルエンドが接着剤１０で覆われて固定されているため、巻線の乱れが無い信頼性の高いモールドステータが得られる。また、エポキシ樹脂とガラス繊維強化した熱可塑性ポリエチレンテレフタレートは密着性がよいことから、信頼性の高いモールドステータとなる。さらに、射出される熱可塑性モールド樹脂５の熱により、融着層９に含まれる第２の硬化剤が硬化して熱可塑性モールド樹脂５と強固に密着する。第２の硬化剤としては、２−フェニルー４、５−ジヒドロキシメチルイミダゾール（通称：２ＰＨＺ）など、２００℃近い温度でエポキシ樹脂と硬化するものを用いる。自己融着巻線２と熱可塑性モールド樹脂５の密着性が強固であるので、より信頼性の高いモールドステータとなる。 Next, a method for manufacturing a molded stator will be described along the steps shown in FIG.
In the stator assembling step, the core segment 6 to which the self-bonding winding 2 and the insulator 3 are attached is connected to be assembled as the core 4. Thereafter, the adhesive 10 is applied to the coil end on the side where the thermoplastic mold resin is injected.
Next, in the stator heat treatment process, the assembled core 4 is heated in a state where it is installed in a heating furnace or a molding die, so that the self-bonding winding 2 itself is fused and fixed and fixed to the insulator 3. I do. The self-bonding winding 2 is heated at 130 ° C. for 5 minutes. The reason why the self-fusion winding 2 is fused and fixed is that the fusion layer 9 is partially cured by the first curing agent contained in the fusion layer 9 during heating. As the first curing agent, 2,4-diamino-6- [2′-methylimidazolyl (1 ′)]-ethyl-s-triazine (common name: 2MZ-A) or the like is cured with an epoxy resin at around 130 ° C. Use what you start with. At this time, the adhesive 10 is also cured and the coil end is fixed.
Next, in the stator molding step, the assembled core 4 was injection-molded with a thermoplastic mold resin 5 at a molding resin temperature of 260 ° C. to obtain a molded stator 1. Molding conditions other than the molding resin temperature are a mold temperature of 100 ° C. and a molding pressure of 70 MPa. At the time of injection molding, the self-bonding winding 2 is fixed and fixed to the insulator 3, and the coil end is covered and fixed with the adhesive 10, so that the winding is not disturbed and has high reliability. A stator is obtained. In addition, since the thermoplastic polyethylene terephthalate reinforced with epoxy resin and glass fiber has good adhesion, it becomes a highly reliable molded stator. Further, the second curing agent contained in the fusion layer 9 is cured by the heat of the injected thermoplastic mold resin 5 and is firmly adhered to the thermoplastic mold resin 5. As the second curing agent, one that cures with an epoxy resin at a temperature close to 200 ° C., such as 2-phenyl-4,5-dihydroxymethylimidazole (common name: 2PHZ), is used. Since the adhesion between the self-bonding winding 2 and the thermoplastic mold resin 5 is strong, a more reliable molded stator is obtained.

本発明の第１実施例を示すモールドステータの縦断面図The longitudinal cross-sectional view of the mold stator which shows 1st Example of this invention 本発明の第１実施例を示すモールドステータの横断面図1 is a cross-sectional view of a molded stator showing a first embodiment of the present invention. 自己融着巻線の断面図Cross section of self-bonding winding 製造工程のフロー図Manufacturing process flow chart 本発明の第２実施例を示すモールドステータの縦断面図Longitudinal sectional view of a molded stator showing a second embodiment of the present invention 本発明の第２実施例を示すモールドステータの製造工程フロー図Manufacturing process flow diagram of a molded stator showing a second embodiment of the present invention 従来のモータにおけるステータの平面図Plan view of stator in conventional motor 図７におけるＡ−Ａ断面図AA sectional view in FIG.

符号の説明Explanation of symbols

１ モールドステータ
２ 自己融着巻線
３ インシュレータ
４ コア
５ 熱可塑性モールド樹脂
６ コアセグメント
７ 導体
８ 絶縁体
９ 自己融着層
１０ 接着剤
１０１ ステータ
１０２ 積層コア
１０３ 巻線
１０４ インシュレータ
１０５ 熱可塑性モールド樹脂 DESCRIPTION OF SYMBOLS 1 Mold stator 2 Self-bonding winding 3 Insulator 4 Core 5 Thermoplastic mold resin 6 Core segment 7 Conductor 8 Insulator 9 Self-bonding layer 10 Adhesive 101 Stator 102 Laminated core 103 Winding 104 Insulator 105 Thermoplastic mold resin

Claims (9)

積層されたコアと、前記コアに取り付けたインシュレータと、前記インシュレータの上に設けた自己融着巻線とから構成されるモータ用のステータが、ガラス繊維で強化された熱可塑性モールド樹脂により一体的に成形されたモータのモールドステータにおいて、
前記熱可塑性モールド樹脂および前記インシュレータが繊維強化した熱可塑性ポリエステル樹脂であることを特徴とするモールドステータ。 A stator for a motor composed of a laminated core, an insulator attached to the core, and a self-bonding winding provided on the insulator is integrated with a thermoplastic mold resin reinforced with glass fiber. In the motor molded stator,
A molded stator, wherein the thermoplastic mold resin and the insulator are thermoplastic polyester resins reinforced with fibers. 積層したコアに熱可塑性樹脂のインシュレータを取り付け、前記インシュレータに自己融着巻線を取り付けてモータ用のステータを形成し、前記ステータを加熱して前記自己着巻線を融着させ、その後前記ステータを熱可塑性モールド樹脂によって一体的に成形するモールドステータの製造方法において、
前記インシュレータおよび前記熱可塑性モールド樹脂を繊維強化した熱可塑性ポリエステル樹脂にすることを特徴とするモールドステータの製造方法。 A thermoplastic resin insulator is attached to the laminated core, a self-bonding winding is attached to the insulator to form a stator for a motor, the stator is heated to fuse the self-bonding winding, and then the stator In a method of manufacturing a molded stator that is integrally molded with a thermoplastic mold resin,
A method of manufacturing a molded stator, characterized in that the insulator and the thermoplastic mold resin are made into a fiber reinforced thermoplastic polyester resin. 前記自己融着巻線の融着層は、エポキシ樹脂を主成分とし、かつ巻線を融着する時に硬化する第１の硬化剤とモールド成形する時に硬化する第２の硬化剤の二種類の硬化剤を添加したものであることを特徴とする請求項２に記載のモールドステータの製造方法。   The fusion layer of the self-bonding winding is composed of two types of epoxy resin as a main component and a first curing agent that cures when the winding is fused and a second curing agent that cures when molding. The method for producing a molded stator according to claim 2, wherein a curing agent is added. 前記自己着巻線を融着させ、前記ステータの一方のコイルエンドを接着剤で覆って固定した後、前記繊維強化熱可塑性ポリエステル樹脂で一体的に成形することを特徴とする請求項２または３記載のモールドステータの製造方法。   4. The self-attached winding is fused, and one coil end of the stator is covered and fixed with an adhesive, and then integrally molded with the fiber-reinforced thermoplastic polyester resin. The manufacturing method of the mold stator of description. 前記第１の硬化剤が２、４−ジアミノー６−[２´−メチルイミダゾリルー（１´）]―エチルーｓ−トリアジンであり、前記第２の硬化剤が、２−フェニルー４、５−ジヒドロキシメチルイミダゾールであることを特徴とする請求項３記載のモールドステータの製造方法。   The first curing agent is 2,4-diamino-6- [2'-methylimidazolyl (1 ')]-ethyl-s-triazine, and the second curing agent is 2-phenyl-4,5-dihydroxy 4. The method for producing a molded stator according to claim 3, wherein the method is methylimidazole. 前記接着剤により固定される前記コイルエンドは、成形機の金型内で前記繊維強化熱可塑性ポリエステル樹脂が射出される側に配置したことを特徴とする請求項５記載のモールドステータの製造方法。   6. The method of manufacturing a molded stator according to claim 5, wherein the coil end fixed by the adhesive is disposed on a side where the fiber-reinforced thermoplastic polyester resin is injected in a mold of a molding machine. 前記接着剤が、エポキシ樹脂を主成分とするものであることを特徴とする請求項５記載のモールドステータの製造方法。   The method for manufacturing a molded stator according to claim 5, wherein the adhesive is mainly composed of an epoxy resin. 請求項１に記載のモールドステータを有することを特徴とするモールドモータ。   A molded motor comprising the molded stator according to claim 1. 請求項２から７のいずれかに記載の方法により製造されたモールドステータを有することを特徴とするモールドモータ。   A molded motor comprising a molded stator manufactured by the method according to claim 2.
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