JP2010104188A

JP2010104188A - Stator core of inner rotor type motor, and mold motor using the same

Info

Publication number: JP2010104188A
Application number: JP2008275118A
Authority: JP
Inventors: Ichiro Kamisaka; 一郎上坂; Kanji Izaki; 勘治井崎
Original assignee: Panasonic Corp
Current assignee: Panasonic Corp
Priority date: 2008-10-27
Filing date: 2008-10-27
Publication date: 2010-05-06

Abstract

<P>PROBLEM TO BE SOLVED: To construct divided stator cores to be used for an inner rotor type motor into an annular stator core by a simple method using, for example, a heat shrinkage action, without using a method or a material, such as welding or adhesive which has an adverse impact on environment. <P>SOLUTION: A plurality of divided iron cores 1, each consisting of a tooth 2 and a yoke 3 integrally formed, are arranged in an annular shape to construct a stator iron core 6. Thereafter, the outer periphery of the stator iron core 6 is covered with a plastic-deformed or elastic-deformed material and then a force is applied radially or axially, thus constructing the stator iron core easily. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、分割した鉄心体を環状に一体化して構成する内転型電動機の固定子鉄心に関する。 The present invention relates to a stator core of an adder type electric motor that is configured by integrating divided core bodies in a ring shape.

従来この種の固定子鉄心は、複数の分割鉄心を環状に組み合わせた後、組み合わせ面を溶接し一体化して固定子を製造する方法や、分割面に接着剤を塗布して一体化された固定子を製造する方法がある。（例えば特許文献１参照）。
特開２００８−７９４２１号公報 Conventionally, this type of stator core is a method in which a plurality of split cores are combined in an annular shape, and then the combined surfaces are welded together to produce a stator, or fixed by applying an adhesive to the split surfaces. There is a method of manufacturing a child. (For example, refer to Patent Document 1).
JP 2008-79421 A

上記の分割固定子どうしを接着剤で固定する方法では、複数の分割された固定子の分割面が多い為、接着剤を塗布するのに時間がかかると言う問題があった。 The above-described method of fixing the divided stators with an adhesive has a problem that it takes time to apply the adhesive because there are many divided surfaces of the divided stators.

本発明は、このような従来の製造時の課題を解決するものであり、この方法により溶接が不要となり、溶接機や固定治具などの設備が不要となり、比較的短い時間と簡便な方法で内転型電動機の固定子を得ることを目的としている。 The present invention solves such problems in conventional manufacturing, and this method eliminates the need for welding, eliminates the need for equipment such as a welding machine and a fixing jig, and provides a relatively short time and a simple method. The purpose is to obtain a stator for an adder motor.

本発明の内転型電動機の固定子鉄心は、上記目的を達成するために、歯部と継鉄部とを一体で形成され、複数に分割された鉄心体を環状に配置することにより固定子鉄心を構成した後、外周部を塑性変形する材料もしくは弾性変形する材料で覆い、径方向に力を加えることによって形成するものであり、簡便に固定子鉄心を構成することが可能となる。また鉄心体の端部にそれぞれ凹部と凸部を設け、隣り合う鉄心体の凹部と凸部を嵌合させることで固定子鉄心がより強固に固定され、簡便に環状に固定子鉄心として構成することが出来る。 In order to achieve the above object, a stator iron core of an internal motor of the present invention is formed by integrally forming a tooth portion and a yoke portion, and arranging a plurality of divided iron core bodies in a ring shape. After the iron core is configured, the outer peripheral portion is covered with a plastically deformable material or an elastically deformable material, and is formed by applying a force in the radial direction, so that the stator core can be configured easily. Moreover, a stator core is more firmly fixed by providing a concave part and a convex part at the end part of the iron core body, and fitting the concave part and the convex part of the adjacent iron core bodies, and it is simply configured as a stator core in an annular shape. I can do it.

この構成により、分割固定子を用いて固定子鉄心を製造する方法では分割固定子どうしを溶接していたが、溶接作業が不要となり、溶接時に発生する有害ガスの発生がなくなる。また専用溶接設備が不要となる。 With this configuration, in the method of manufacturing the stator core using the split stator, the split stators are welded to each other, but welding work is not required, and generation of harmful gas generated during welding is eliminated. Also, dedicated welding equipment is not required.

また上記手段で得られた固定鉄心を熱可塑性樹脂にてモールドすることにより、固定鉄心は完全に固定され品質が安定した固定鉄心を持つモールドモータを得ることが出来る。 Further, by molding the fixed iron core obtained by the above means with a thermoplastic resin, it is possible to obtain a molded motor having a fixed iron core that is completely fixed and has a stable quality.

本発明によれば、歯部と継鉄部とを一体で形成され、複数に分割された鉄心体を環状に配置することにより固定子鉄心を構成した後、外周部を塑性変形する材料もしくは弾性変形する材料で覆い、径方向に力が加わることで簡便に固定子鉄心を構成することが可能となる。 According to the present invention, the tooth portion and the yoke portion are integrally formed, and after the stator core is configured by arranging the core body divided into a plurality of rings, the material or elasticity that plastically deforms the outer peripheral portion The stator core can be simply configured by covering with a deformable material and applying a force in the radial direction.

本発明の請求項１記載の発明は、歯部と継鉄部とを一体で形成され、鉄心体に銅線が巻かれた複数に分割された鉄心体を環状に配置することにより固定子を構成した後、外周部を塑性変形する材料もしくは弾性変形する材料で覆い、径方向に力が加わることで固定子鉄心を構成することができる。 According to the first aspect of the present invention, the stator portion is formed by annularly arranging a plurality of divided cores in which a tooth part and a yoke part are integrally formed and a copper wire is wound around the core. After the configuration, the stator core can be configured by covering the outer peripheral portion with a plastically deformable material or an elastically deformable material and applying a force in the radial direction.

また請求項２記載の発明は、外周部を塑性変形または弾性変形する材料は、前記固定子鉄心の厚みよりも長いシート状の材料とし、固定子鉄心を径方向と軸方向に所定の力を加える事で得られる前記請求項１記載の内転型電動機の固定子鉄心である。 According to a second aspect of the present invention, the material that plastically or elastically deforms the outer peripheral portion is a sheet-like material longer than the thickness of the stator core, and the stator core is subjected to a predetermined force in the radial direction and the axial direction. It is a stator core of the internal rotation type | mold motor of the said Claim 1 obtained by adding.

また請求項３記載の発明は、前記請求項２記載の塑性変形する材料を熱収性縮材料としたことを特徴とした前記請求項１または２記載の内転型電動機の固定子鉄心である。 According to a third aspect of the present invention, there is provided the stator iron core of the internal motor according to the first or second aspect, wherein the plastically deforming material according to the second aspect is a heat-absorbing material. .

また請求項４記載の発明は、前記請求項２の弾性変形する材料を弾性張力を持つ材料としたことを特徴とした前記請求項１または２記載の内転型電動機の固定子鉄心である。 According to a fourth aspect of the present invention, there is provided the stator iron core of an adder type electric motor according to the first or second aspect, wherein the elastically deformable material of the second aspect is a material having an elastic tension.

また請求項５記載の発明は、分割された鉄心体の継鉄部の周方向の一方の端部にそれぞれ凹部と凸部を設け、隣り合う鉄心体の継鉄部端部に加工された凹部と凸部が嵌合することで得られる請求項１から４記載の内転型電動機の固定鉄心である。 Further, the invention according to claim 5 is provided with a recess and a protrusion at one end in the circumferential direction of the yoke portion of the divided iron core body, and the recess processed into the yoke portion end of the adjacent iron core body. 5. The fixed iron core of an adder type electric motor according to claim 1, which is obtained by fitting the convex portion with the convex portion.

また請求項６記載の発明は、前記請求項１から５記載の内転型電動機の固定子鉄心を熱可塑性樹脂にてモールドすることにより得られるモールドモータである。 The invention according to claim 6 is a molded motor obtained by molding the stator core of the adder type electric motor according to any one of claims 1 to 5 with a thermoplastic resin.

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

（実施の形態１）
本発明の固定子鉄心は、図１〜５を用いて説明する。図１に示すように、鉄心体１は、鋼板材料を歯部２と継鉄部３とを一体にして打ち抜き、積層して形成されたものである。鉄心体１には、図２に示すように、絶縁処理を施した後に巻線を巻装し、巻装体４を得る。次に図３に示すように巻装体４を環状に構成して組み合わせる。この状態では巻装体４同士は固着されておらず、バラバラの状態である。この組み合わせた状態で、図４に示すように径方向に収縮する熱収縮性材料５でこの巻装体４の集合体の外周部を覆う。熱収縮性材料５は、所定の熱を加えることにより収縮し、径方向に固着されることになって所定形状に保持された固定子鉄心６を得るものである。鉄心体１は外周部の一部に直線部を持つものであってもよく、鉄心体１が比較的どのような形状を有していても熱収縮性材料５は収縮後はその形状に容易に変形するので、巻装体４の集合体の外周部を覆って所定形状を構成することが出来る。 (Embodiment 1)
The stator core of the present invention will be described with reference to FIGS. As shown in FIG. 1, the iron core 1 is formed by punching and laminating a steel plate material integrally with a tooth portion 2 and a yoke portion 3. As shown in FIG. 2, the iron core body 1 is subjected to insulation treatment and then wound with a winding to obtain a wound body 4. Next, as shown in FIG. 3, the wound body 4 is formed in an annular shape and combined. In this state, the wound bodies 4 are not fixed to each other and are in pieces. In this combined state, as shown in FIG. 4, the outer periphery of the assembly of the wound bodies 4 is covered with a heat-shrinkable material 5 that shrinks in the radial direction. The heat-shrinkable material 5 is contracted by applying predetermined heat, and is fixed in the radial direction to obtain a stator core 6 held in a predetermined shape. The iron core body 1 may have a linear portion at a part of the outer peripheral portion, and the heat-shrinkable material 5 can be easily shaped after shrinkage regardless of the shape of the iron core body 1. Therefore, a predetermined shape can be formed by covering the outer periphery of the assembly of the wound bodies 4.

このような構成によれば、固定子鉄心６を製造する際に溶接が不要となり、溶接機や固定治具などの設備が不要となる。また複数に分割された鉄心体１を環状に構成して固定子鉄心６を接着剤を用いて製造する方法では、多数の分割面に接着剤を塗布するのに時間がかかっていたが、本発明によれば比較的短い時間と簡便な方法で内転型電動機の固定子を得ることができる。 According to such a structure, when manufacturing the stator core 6, welding is unnecessary and facilities, such as a welding machine and a fixing jig, are unnecessary. Further, in the method of manufacturing the stator core 6 using an adhesive by forming the core body 1 divided into a plurality of rings, it takes time to apply the adhesive to a large number of divided surfaces. According to the present invention, a stator for an internal motor can be obtained in a relatively short time and in a simple manner.

熱収縮性材料５とは電線保護に広く用いられている熱収縮チューブが好適である。熱収縮性材料５の加熱方法はドライヤーによる加熱でも良いし、恒温加熱槽などを用いるのでも良い。 The heat-shrinkable material 5 is preferably a heat-shrinkable tube that is widely used for electric wire protection. The heating method of the heat-shrinkable material 5 may be heating with a dryer, or a constant temperature heating tank may be used.

また、熱収縮性材料５の大きさは、固定子鉄心６の大きさに対し一部でもよく、全体を覆うことでも良い。さらに軸方向のズレを防止する為、あらかじめ固定子鉄心６の厚みよりも大きくしておき、巻装体４の端部上下面にかかるように配置しておくと、図５に示すように固定子鉄心６はより周方向と軸方向に固定され望ましい。 The size of the heat-shrinkable material 5 may be a part of the size of the stator core 6 or may cover the whole. Further, in order to prevent axial displacement, if the thickness is made larger than the thickness of the stator core 6 in advance and arranged so as to cover the upper and lower surfaces of the end of the wound body 4, the fixing as shown in FIG. The core 6 is preferably fixed in the circumferential direction and the axial direction.

また、分割された巻装体４を環状に配置するには、図６に示すように隣り合う巻装体４の歯部２の端面に凹部７と凸部８を設け、それぞれが嵌合するように組み合わせを行うことでより容易に所定形状を得ることが出来る。この凹部７、凸部８がないと熱収縮性材料５が収縮した際に環状にして巻装体４を保持するのが困難となる。嵌合部の爪形状は鉤型でもよく、楔形やその他嵌合が出来る形状であれば良い。 Moreover, in order to arrange | position the winding body 4 divided | segmented cyclically | annularly, as shown in FIG. 6, the recessed part 7 and the convex part 8 are provided in the end surface of the tooth | gear part 2 of the adjacent winding body 4, and each fits. Thus, a predetermined shape can be obtained more easily by performing the combination. Without the recesses 7 and 8, it becomes difficult to hold the wound body 4 in an annular shape when the heat-shrinkable material 5 contracts. The claw shape of the fitting portion may be a saddle shape, and may be a wedge shape or any other shape that can be fitted.

熱収縮性材料５は所望する固定子鉄心６の直径よりやや大きめのものを用意し、固定子鉄心６の外周に配役後に所定の温度を加えるだけで容易に収縮するので、作業者の習熟度によらず不特定多数の作業者であっても同じ品質を有する固定子鉄心６の提供が可能となる。熱収縮後の固定子鉄心６は十分強度を有し、また熱収縮性材料５も比較的高温にさらされても状態変化しないので、そのまま樹脂によりモールドしてモールドモータを得ることが出来る。 The heat-shrinkable material 5 is prepared to be slightly larger than the desired diameter of the stator core 6 and is easily contracted simply by applying a predetermined temperature to the outer periphery of the stator core 6 after casting. Regardless of this, even for an unspecified number of workers, it is possible to provide the stator core 6 having the same quality. The stator core 6 after heat shrinkage has sufficient strength, and the heat-shrinkable material 5 does not change its state even when exposed to a relatively high temperature, so that it can be molded as it is with a resin to obtain a molded motor.

鉄心体１の集合体を外周側から径方向に圧力を加えて固着する材料としては、シリコンゴムのような弾性張力を持つ材料でもよい。シリコンゴムは、高温に耐えることが出来、かつ一定の弾性を持つので、固定子鉄心６を容易に得ることが可能となる。 As a material for fixing the aggregate of the iron cores 1 by applying pressure in the radial direction from the outer peripheral side, a material having elastic tension such as silicon rubber may be used. Since silicon rubber can withstand high temperatures and has a certain elasticity, the stator core 6 can be easily obtained.

以上のように本発明によれば、従来使用されてきた溶接作業や接着剤による方法ではなく、塑性変形または弾性変形する材料を用いることにより容易に固定子鉄心を構成することができ、内転型電動機で用いられる固定子鉄心に適用できる。 As described above, according to the present invention, the stator core can be easily configured by using a material that is plastically deformed or elastically deformed, instead of the conventionally used welding work or adhesive method. Applicable to stator cores used in type motors.

内転型電動機の鉄心体を示す図The figure which shows the iron core of the adder motor 内転型電動機の鉄心体に銅線を巻装したものを示す図The figure which shows what wound the copper core around the iron core of the adder motor 内転型電動機の固定子の巻装後の組み合わせ状態を示す図The figure which shows the combined state after winding of the stator of an adder motor 本発明の第１の実施の形態の構成を示す構成図The block diagram which shows the structure of the 1st Embodiment of this invention 本発明の第１の実施の形態の構成を示す構成図The block diagram which shows the structure of the 1st Embodiment of this invention 内転型電動機の鉄心体を示す図The figure which shows the iron core of the adder motor

符号の説明Explanation of symbols

１鉄心体
２歯部
３継鉄部
４巻装体
５熱収縮性材料
６固定子鉄心
７凹部
８凸部 DESCRIPTION OF SYMBOLS 1 Iron core body 2 Tooth part 3 Relay part 4 Winding body 5 Heat-shrinkable material 6 Stator core 7 Recessed part 8 Convex part

Claims

歯部と継鉄部とを一体で形成され、複数に分割された鉄心体を環状に構成することで得られる内転型電動機の固定子鉄心であって、外周部を塑性変形または弾性変形する材料で覆い、径方向に所定の力を加えることにより一体化した内転型電動機の固定子鉄心。 A stator core of an adder type electric motor obtained by forming a tooth part and a yoke part integrally and forming a plurality of divided iron cores in an annular shape, and plastically deforming or elastically deforming the outer peripheral part. A stator core of an adder type electric motor which is covered with a material and integrated by applying a predetermined force in the radial direction.

外周部を塑性変形または弾性変形する材料は、前記固定子鉄心の厚みよりも長いシート状の材料とし、軸方向にはみ出した部分を前記固定子鉄心の軸方向上下からかぶせるようにして、固定子鉄心を径方向と軸方向に所定の力を加える事で一体化した請求項１記載の内転型電動機の固定子鉄心。 The material that plastically or elastically deforms the outer peripheral portion is a sheet-like material that is longer than the thickness of the stator core, and the portion protruding in the axial direction covers the stator core from above and below in the axial direction. The stator core of an internal motor according to claim 1, wherein the iron core is integrated by applying a predetermined force in the radial direction and the axial direction.

固定子鉄心の外周部を覆う材料は熱収縮性を持つ材料としたことを特徴とした前記請求項１または２記載の内転型電動機の固定子鉄心。 3. The stator core of an internal motor according to claim 1, wherein the material covering the outer periphery of the stator core is a material having heat shrinkability.

固定子鉄心の外周部を覆う材料は弾性張力を持つ材料としたことを特徴とした前記請求項１または２記載の内転型電動機の固定子鉄心。 3. A stator core for an internal motor according to claim 1, wherein the material covering the outer periphery of the stator core is made of a material having elastic tension.

前記継鉄部の周方向の一方の端部に凹部を設け、他方に凸部を設け、隣り合う鉄心体の継鉄部端部に加工された前記凹部と前記凸部が嵌合する請求項１から請求項４いずれかひとつに記載の内転型電動機の固定子鉄心。 The concave portion is provided at one end portion in the circumferential direction of the yoke portion, the convex portion is provided at the other, and the concave portion processed at the yoke portion end portion of the adjacent iron core is fitted with the convex portion. The stator iron core of an adder type electric motor according to any one of claims 1 to 4.

請求項１から５いずれかひとつに記載の内転型電動機の固定子鉄心を熱可塑性樹脂によりモールドして得られるモールドモータ。 A molded motor obtained by molding the stator core of the adder type electric motor according to any one of claims 1 to 5 with a thermoplastic resin.