JPH0595647A - Stator device of induction motor - Google Patents

Stator device of induction motor

Info

Publication number
JPH0595647A
JPH0595647A JP25184091A JP25184091A JPH0595647A JP H0595647 A JPH0595647 A JP H0595647A JP 25184091 A JP25184091 A JP 25184091A JP 25184091 A JP25184091 A JP 25184091A JP H0595647 A JPH0595647 A JP H0595647A
Authority
JP
Japan
Prior art keywords
winding
coil
stator
wound
legs
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.)
Pending
Application number
JP25184091A
Other languages
Japanese (ja)
Inventor
Hiroaki Sagara
弘明 相良
Takao Taruya
隆夫 樽谷
Noriaki Kimura
規明 木村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP25184091A priority Critical patent/JPH0595647A/en
Publication of JPH0595647A publication Critical patent/JPH0595647A/en
Pending legal-status Critical Current

Links

Landscapes

  • Induction Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To secure the space of a slot and wind an outer coil easily and surely by making a taper on the sidewall on the side of a slot wherein the winding of the coil of each lag whereon inner coils are wound is inserted, and making the width on the side of the peripheral ends of the lags wider than the width of the base. CONSTITUTION:The winding of a coil onto a bobbin is performed by automatically passing winding a round, for example, the legs 14a and 14c, that is, in the slots 18a and 18d by an automatic machine such as a winder, etc. When winding the inner coil 21 by an automatic machine, the winding set in the slots 18a and 18d, even if laid on the top sides of the lags 14a and 14c, are pulled to the base side by the tensile strength on winding, since the sidewalls of the legs 14a and 14c are tapered and the side of the interval between the legs at the base is narrower than the interval between the legs at the top, and the winding is wound concentrically at the bottom of the slot. As a result, the winding work of the outer coil can be performed easily.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、誘導電動機のステータ
装置に関する。さらに詳しくは、ステータ装置が内側ス
テータと外側ステータとに分割して組み立てられるステ
ータ装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator device for an induction motor. More specifically, the present invention relates to a stator device in which a stator device is divided and assembled into an inner stator and an outer stator.

【0002】[0002]

【従来の技術】誘導電動機は中心に配置されたかご形ロ
ータの周囲に複数個の磁極からなるステータが配置さ
れ、ステータの回転磁界によりロータを回転させるもの
である。この電動機の回転出力はステータの磁界の強さ
に依存し、一方ステータの磁極にコイルを巻回すること
は構造上複雑であり、容易な組立で強い磁界をえられる
ステータ装置について従来から改良の検討がなされてい
る。
2. Description of the Related Art An induction motor has a stator having a plurality of magnetic poles arranged around a squirrel cage rotor arranged at the center, and rotates the rotor by a rotating magnetic field of the stator. The rotation output of this electric motor depends on the strength of the magnetic field of the stator, while winding a coil around the magnetic poles of the stator is structurally complicated, and a stator device that can obtain a strong magnetic field by easy assembly has been improved from the past. Consideration is being made.

【0003】このような誘導電動機のステータ装置とし
ては、たとえば実公昭37-24204号公報(55A02 )、また
は実公昭60-22777号公報(H02K 1/14 )において開示さ
れているように、ステータの巻き線加工工程の容易化を
図るため、ステータを外側ステータと内側ステータの二
つに分割した構造が開示されている。
As a stator device of such an induction motor, for example, as disclosed in Japanese Utility Model Publication No. 37-24204 (55A02) or Japanese Utility Model Publication No. 60-22777 (H02K 1/14), A structure is disclosed in which the stator is divided into an outer stator and an inner stator in order to facilitate the winding process.

【0004】すなわち、従来の外側ステータと内側ステ
ータの二つに分割したステータ装置は、磁性体板の積層
体で形成された円筒の外周に複数の磁極が放射状に突設
された形状の内側ステータの外周に、同様に磁性体板の
積層体で形成された円筒状の外側ステータを圧入して形
成する構成となっているため、内側ステータの複数の磁
極にコイルを巻回して組立てることができ、容易に組立
てることができる。
That is, a conventional stator device divided into two parts, an outer stator and an inner stator, is an inner stator having a shape in which a plurality of magnetic poles are radially projected on the outer circumference of a cylinder formed of a laminated body of magnetic plates. Since a cylindrical outer stator, which is also formed of a laminated body of magnetic plates, is press-fitted and formed on the outer circumference of, the coil can be wound around a plurality of magnetic poles of the inner stator to be assembled. , Easy to assemble.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、従来の
外側ステータと内側ステータに分割して組立てるステー
タ装置は、内側ステータの磁極の中心軸側が磁性体の円
筒で連結されているため、磁極から中心に配置されたロ
ータへ本来向うべき磁束が磁気抵抗の小さい円筒部へ流
れ、ロータへ到達する磁束の量が減少し、電動機の効率
が低下するという問題がある。
However, in the conventional stator device which is divided into the outer stator and the inner stator to be assembled, the magnetic poles of the inner stator are connected to each other by the cylinder of the magnetic material. There is a problem that the magnetic flux that should originally go to the arranged rotor flows to the cylindrical portion having a small magnetic resistance, the amount of magnetic flux reaching the rotor decreases, and the efficiency of the electric motor decreases.

【0006】[0006]

【課題を解決するための手段】本発明者らはこのような
状況に鑑み、ステータを外側ステータと内側ステータに
分割し、非磁性体の巻枠を介して結合する構造のステー
タ装置を開発した。
In view of such a situation, the present inventors have developed a stator device having a structure in which the stator is divided into an outer stator and an inner stator, and the stators are connected via a non-magnetic winding frame. ..

【0007】すなわち、図3に分解斜視図で示すように
非磁性体で成形した巻枠10の脚部14に内側コイル21、外
側コイル22からなるコイル20を巻回し、切欠き部31を形
成したリング状コア32と切欠き部のないリング状コア33
とを積層して形成した外側ステータ30を巻枠10の脚部14
の外周に挿入する。ついでスティック状の長いコア41と
短いコア42との積層体で形成された内側ステータ40を巻
枠10の内部から挿入し、外側ステータ30の切欠き部31に
内側ステータの長いコア41を嵌合させて挟着している。
That is, as shown in the exploded perspective view of FIG. 3, a coil 20 composed of an inner coil 21 and an outer coil 22 is wound around a leg portion 14 of a winding frame 10 formed of a non-magnetic material to form a cutout portion 31. Ring-shaped core 32 and ring-shaped core 33 without notch
The outer stator 30 formed by stacking the
To the outer circumference of. Then, the inner stator 40 formed of a laminated body of the stick-shaped long core 41 and the short core 42 is inserted from the inside of the winding frame 10, and the long core 41 of the inner stator is fitted into the notch 31 of the outer stator 30. Let it be sandwiched.

【0008】この構成で、内側コイル21はたとえば、脚
部14a 、14b 、14c の3個に巻回され、1個おいて14e
…とつぎの3個に巻回され、順次1個おいてつぎの3個
の脚部にコイルが巻回されている。こうして内側コイル
21が巻き終ったのち、外側コイル22が脚部14c 、14d 、
14e の3個に巻回され、内側コイル21と同様に順次1本
おいて、つぎの3個の脚部にコイルが巻回されている。
この内側コイル21を巻回した状態を図4に模式的平面図
で示す。このコイルの巻回は、巻枠の外周側から巻線機
などにより巻線を直接巻回することにより巻線加工を行
うため、コイルの渡りの部分が直線状となる。とくに初
めに巻回される内側コイル21において巻線の量が増加す
るとつぎに巻回される外側コイル22の巻線が挿入される
スロット内の大半が内側コイルの渡りの部分で覆われ、
外側コイルを巻回する際にコイルの一部が巻枠からはみ
出したり、コイルを所定回数巻回できないなどの問題が
ある。
With this structure, the inner coil 21 is wound around, for example, three legs 14a, 14b and 14c, and one coil 14e is left.
The coil is wound around the next three legs, and the coil is wound around the next three legs. Thus the inner coil
After 21 is wound, the outer coil 22 is connected to the legs 14c, 14d,
It is wound around three of 14e, and one coil is sequentially placed in the same manner as the inner coil 21, and the coil is wound around the next three legs.
A state in which the inner coil 21 is wound is shown in a schematic plan view in FIG. When winding the coil, the winding process is performed by directly winding the winding from the outer peripheral side of the winding frame by a winding machine or the like, so that the crossover portion of the coil becomes linear. Especially, when the amount of winding increases in the inner coil 21 that is wound first, most of the slot in which the winding of the outer coil 22 that is wound next is inserted is covered with the transition portion of the inner coil,
When the outer coil is wound, there are problems that a part of the coil protrudes from the winding frame, and the coil cannot be wound a predetermined number of times.

【0009】本発明は、このような状況に鑑み、内側コ
イルを小スペースで巻回し、外側コイルが巻枠からはみ
出したり、所定回数巻回できないということが起らない
ようなステータ装置の巻枠を提供することを目的として
いる。
In view of the above situation, the present invention is concerned with such a situation that the inner coil is wound in a small space, and the outer coil does not protrude from the winding frame or cannot be wound a predetermined number of times. Is intended to provide.

【0010】本発明による誘導電動機のステータ装置
は、非磁性体で成形され、円筒部の外周に突設された複
数個の脚部を有する巻枠と、前記脚部2個で挟まれて形
成されたスロットに巻線が挿入され前記脚部の周囲に巻
回されて形成された内側コイルおよび外側コイルと、前
記脚部の外周に挿入された外側ステータと、前記円筒部
の内部から前記外側ステータに挟着された内側ステータ
とからなる誘導電動機のステータ装置であって、前記内
側コイルが巻回される脚部の該コイルの巻線が挿入され
るスロット側の側壁にテーパが形成され、前記脚部の外
周端側の幅が根元の幅より広く形成されていることを特
徴とする。
A stator device for an induction motor according to the present invention is formed of a non-magnetic material and is sandwiched between two winding portions and a winding frame having a plurality of leg portions protruding from the outer periphery of a cylindrical portion. An outer coil inserted into the outer circumference of the leg, and an inner coil and an outer coil formed by winding the wire around the leg and inserting the winding into the slot. A stator device for an induction motor, comprising an inner stator sandwiched between stators, wherein a taper is formed on a side wall of a leg on which the inner coil is wound, the side wall of the coil being inserted into the slot. The width of the leg portion on the outer peripheral end side is formed wider than the width of the root.

【0011】[0011]

【作用】本発明によれば、内側コイルを巻回する巻枠の
脚部の前記コイルの巻線を挿入するスロット側の側壁に
逆テーパが形成されているため、内側コイルを巻回する
巻線は脚部の根元側に寄せられ、スロットの奥部で巻回
される。その結果内側コイルの渡り部分も巻枠の中心軸
方向に寄り、外側コイルを巻回する部分のスロットにも
余裕が生じ、外側コイルを確実に容易に巻回することが
できる。
According to the present invention, since the side wall of the leg of the winding frame for winding the inner coil is formed on the side wall on the slot side into which the winding of the coil is inserted, the inner coil is wound. The wire is pulled closer to the base of the leg and wound at the back of the slot. As a result, the crossing portion of the inner coil is also closer to the central axis direction of the winding frame, and a slot is formed in the portion around which the outer coil is wound, so that the outer coil can be surely and easily wound.

【0012】[0012]

【実施例】つぎに、本発明を図面を参照しながら説明す
る。図1は本発明のステータ装置の巻枠に内側コイルが
巻回された状態を模式的に示した平面図、図2はその巻
枠の斜視図である。
The present invention will be described below with reference to the drawings. FIG. 1 is a plan view schematically showing a state in which an inner coil is wound around a winding frame of a stator device of the present invention, and FIG. 2 is a perspective view of the winding frame.

【0013】これらの図において、10は巻枠で、円筒部
12と、その外周に突設された脚部14(14a 、14b 、14c
、14d …)とからなり、その脚部14で挟まれたスロッ
ト18(18a 、18b 、18c 、18d …)が形成されている。
この脚部14に内側コイル21と外側コイル(図示されてい
ない)が巻回され、図3に示したように外部に挿入され
る外側ステータ30とそれに挟着される内側ステータ40と
でステータ装置が構成されている。
In these drawings, 10 is a reel, which is a cylindrical portion.
12 and leg portions 14 (14a, 14b, 14c) protruding from the outer circumference
, 14d ...), and the slots 18 (18a, 18b, 18c, 18d ...) between the legs 14 are formed.
An inner coil 21 and an outer coil (not shown) are wound around the leg portion 14, and as shown in FIG. 3, an outer stator 30 that is inserted outside and an inner stator 40 that is sandwiched by the outer stator 30 form a stator device. Is configured.

【0014】本発明によるこの巻枠10では、内側コイル
21が巻回される脚部14a 、14c のコイル巻線が挿入され
るスロット18a 、18d 側の側壁S部分に脚部14の先端か
ら根元方向に向ってテーパが形成されている。すなわ
ち、内側コイル21の巻回される脚部14a 、14c は、先端
部の幅が根元部の幅より広く形成されている。
In this reel 10 according to the invention, the inner coil
A taper is formed from the tip of the leg portion 14 toward the root direction at the side wall S portion on the slot 18a, 18d side into which the coil winding of the leg portion 14a, 14c around which 21 is wound is inserted. That is, the leg portions 14a and 14c around which the inner coil 21 is wound are formed such that the width of the tip portion is wider than the width of the root portion.

【0015】この巻枠にコイルを巻回するには、巻線機
などの自動機により、たとえば脚部14a と脚部14c の外
周、すなわちスロット18aと18d に巻線を自動的に掛け
回すことにより行う。この内側コイル21を自動機により
巻回すると、スロット18a 、18d に挿入された巻線は、
脚部14a 、14c の先端側に掛けられても、脚部14a 、14
c の側壁がテーパ状に形成されており、根元の脚部間隔
の方が先端部での脚部の間隔より狭いため、巻線時の引
張力により根元の方に引張られ、巻線はスロット底部に
集中して巻回される。
In order to wind the coil around this winding frame, an automatic machine such as a winding machine automatically winds the winding around the outer circumferences of the legs 14a and 14c, that is, the slots 18a and 18d. By When the inner coil 21 is wound by an automatic machine, the windings inserted in the slots 18a and 18d are
Even if it is hung on the tip side of the legs 14a, 14c, the legs 14a, 14c
Since the side wall of c is tapered, and the distance between the legs at the root is narrower than the distance between the legs at the tip, the pulling force during winding pulls it toward the root, It is concentrated around the bottom.

【0016】その結果、外側コイルの巻回のため巻線が
挿入されるスロット18c 、18f では内側コイル21の渡り
部分Wで覆われる空間が少なくなり、外側コイルの巻線
作業を容易に行うことができる。
As a result, in the slots 18c and 18f into which the winding is inserted for winding the outer coil, the space covered by the transition portion W of the inner coil 21 is reduced, and the outer coil winding work can be performed easily. You can

【0017】前述の脚部のテーパの形成は、巻枠を樹脂
などで型成形するばあい、その型にテーパを形成してお
くことにより容易に形成できる。
The taper of the leg portion described above can be easily formed by forming a taper on the die when the reel is die-formed with resin or the like.

【0018】また、前述の実施例では3個づつの脚部に
コイルを巻回する例で説明し、テーパを設ける脚部も3
個組みの両端の脚部の外側側壁に形成する例で説明した
が、3個づつの巻回に制限されるものではなく、要は内
側コイルの巻回される脚部の該コイルの巻線が挿入され
るスロット側にテーパを形成すれば、本発明の目的を達
成することは明らかである。
Further, in the above-described embodiment, an example in which the coil is wound around every three legs is explained, and the number of legs provided with the taper is also three.
Although the description has been given of the example of forming on the outer side walls of the leg portions at both ends of the individual set, the present invention is not limited to three windings, and the point is to wind the coil of the leg portion on which the inner coil is wound. It is obvious that the object of the present invention can be achieved by forming a taper on the side of the slot into which is inserted.

【0019】[0019]

【発明の効果】以上説明したように、本発明によれば巻
枠の内側コイルが巻回される脚部の、巻線の挿入される
スロット側にテーパ部を形成して脚部の根元部の幅を先
端部の幅より狭くしているため、コイルの巻線加工工程
において巻回される内側コイルはスロット底部に集中
し、内側コイルが中心方向に偏るため外側コイルの巻線
を挿入するスロットのスペースを確保でき、外側コイル
の巻回を容易に、かつ確実に行える。
As described above, according to the present invention, the root portion of the leg portion is formed by forming the taper portion on the slot side into which the winding is inserted, of the leg portion around which the inner coil of the winding frame is wound. Since the width of the inner coil is narrower than the width of the tip, the inner coil wound in the coil winding process concentrates on the bottom of the slot, and the inner coil is biased toward the center, so the outer coil winding is inserted. The slot space can be secured, and the outer coil can be easily and surely wound.

【0020】その結果、このコイルを巻回した巻枠に外
側ステータと内側ステータを挟着させたステータ装置
は、安価に製造され、高性能となる効果がある。
As a result, the stator device in which the outer stator and the inner stator are sandwiched between the winding frames around which this coil is wound is manufactured at low cost and has the effect of high performance.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のステータ装置の巻枠に内側コイルが巻
回された状態を模式的に示す平面図である。
FIG. 1 is a plan view schematically showing a state where an inner coil is wound around a winding frame of a stator device of the present invention.

【図2】本発明のステータ装置の巻枠の斜視図である。FIG. 2 is a perspective view of a winding frame of the stator device of the present invention.

【図3】従来の問題を解決したステータ装置の分解斜視
図である。
FIG. 3 is an exploded perspective view of a stator device that solves a conventional problem.

【図4】従来のステータ装置の巻枠に内側コイルが巻回
された状態を模式的に示す平面図である。
FIG. 4 is a plan view schematically showing a state in which an inner coil is wound around a winding frame of a conventional stator device.

【符号の説明】[Explanation of symbols]

10 巻枠 12 円筒部 14 脚部 18 スロット 21 内側コイル 22 外側コイル 30 外側ステータ 40 内側ステータ S テーパの形成された側壁 10 Reel 12 Cylindrical part 14 Leg 18 Slot 21 Inner coil 22 Outer coil 30 Outer stator 40 Inner stator S Side wall with taper

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 非磁性体で成形され、円筒部の外周に突
設された複数個の脚部を有する巻枠と、前記脚部2個で
挟まれて形成されたスロットに巻線が挿入され前記脚部
の周囲に巻回されて形成された内側コイルおよび外側コ
イルと、前記脚部の外周に挿入された外側ステータと、
前記円筒部の内部から前記外側ステータに挟着された内
側ステータとからなる誘導電動機のステータ装置であっ
て、前記内側コイルが巻回される脚部の該コイルの巻線
が挿入されるスロット側の側壁にテーパが形成され、前
記脚部の外周端側の幅が根元の幅より広く形成されてな
る誘導電動機のステータ装置。
1. A winding frame is formed of a non-magnetic material and has a winding frame having a plurality of legs protruding from the outer periphery of a cylindrical portion, and a winding is inserted into a slot formed between the two legs. An inner coil and an outer coil formed by being wound around the leg portion, and an outer stator inserted in the outer periphery of the leg portion,
A stator device for an induction motor, comprising an inner stator sandwiched between the inside of the cylindrical portion and the outer stator, wherein a leg portion around which the inner coil is wound is inserted into a slot of the winding of the coil. A stator device for an induction motor, wherein a taper is formed on a side wall of the leg portion, and a width of the leg portion on an outer peripheral end side is formed wider than a width of a root portion.
JP25184091A 1991-09-30 1991-09-30 Stator device of induction motor Pending JPH0595647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25184091A JPH0595647A (en) 1991-09-30 1991-09-30 Stator device of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25184091A JPH0595647A (en) 1991-09-30 1991-09-30 Stator device of induction motor

Publications (1)

Publication Number Publication Date
JPH0595647A true JPH0595647A (en) 1993-04-16

Family

ID=17228712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25184091A Pending JPH0595647A (en) 1991-09-30 1991-09-30 Stator device of induction motor

Country Status (1)

Country Link
JP (1) JPH0595647A (en)

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