JPH0638698B2 - Small electric motor - Google Patents
Small electric motorInfo
- Publication number
- JPH0638698B2 JPH0638698B2 JP58066091A JP6609183A JPH0638698B2 JP H0638698 B2 JPH0638698 B2 JP H0638698B2 JP 58066091 A JP58066091 A JP 58066091A JP 6609183 A JP6609183 A JP 6609183A JP H0638698 B2 JPH0638698 B2 JP H0638698B2
- Authority
- JP
- Japan
- Prior art keywords
- wiring
- stator
- electric motor
- yoke
- iron core
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil
Description
【発明の詳細な説明】 (イ) 産業上の利用分野 本発明は小型電動機に係り、特に固定子鉄心の絶縁に関
するものである。The present invention relates to a small electric motor, and more particularly to insulation of a stator core.
(ロ) 従来技術 一般に電動機の鉄心、固定子巻線及び配線間の絶縁手段
としては鉄心のスロット部に絶縁紙を１枚１枚挿入する
構成であったため、その組立に必要以上の時間を費やす
ものであり、さらに絶縁紙がスロット部から抜け落ちる
場合があった。(B) Prior art Generally, as insulating means between the iron core of the electric motor, the stator winding and the wiring, the insulating paper is inserted one by one into the slot portion of the iron core, so it takes more time than necessary to assemble it. In addition, the insulating paper may fall out of the slot.
さらに上記のような絶縁紙を用いず、絶縁性、耐熱性が
良くかつ吸湿作用の少ない合成樹脂を用いて、鉄心のス
ロット部、ヨーク部などの固定子巻線や配線との間に絶
縁材が介在されるようにモールドして必要な絶縁距離を
保っているものがあった。このような絶縁手段では鉄心
と固定子巻線との間の絶縁は確保されるが各固定子巻線
間を接続する配線保護が充分に行なえない。近年の電動
機の小型化の設計においても、保護チューブを多用して
配線の保護を行なっていた。従って、配線が長く接続数
が多い場合には製造工程が増加し、より小型化にする時
に妨げとなるものであった。Furthermore, instead of using the above-mentioned insulating paper, use a synthetic resin that has good insulation and heat resistance and a low hygroscopic effect, and use an insulating material between the stator winding and wiring such as the slot and yoke of the iron core. In some cases, it was molded so as to intervene between the two to maintain the required insulation distance. With such an insulating means, insulation between the iron core and the stator winding is ensured, but the wiring for connecting the stator windings cannot be sufficiently protected. Even in the recent miniaturization of electric motors, the protection tube is often used to protect the wiring. Therefore, when the wiring is long and the number of connections is large, the number of manufacturing steps increases, which hinders further miniaturization.
(ハ) 発明の目的 斯る問題点に鑑みなされた本発明は、配線保護手段とし
て保護チューブ等の特別な手段を必要とせず、従来より
小型化された電動機を提供するものである。(C) Object of the Invention The present invention made in view of the above problems provides a motor that is smaller than conventional ones without requiring any special means such as a protection tube as a wiring protection means.
(ニ) 発明の構成 本発明の小型電動機は、外周に配線接続用の切欠きを有
し、硅素鋼板や電気鉄板等からなる鉄板を複数枚切欠き
が連続するように積層した鉄心に、この鉄心のヨーク部
の円周に沿って切欠きの両側に形成する配線保護壁と、
固定子巻線及び配線の絶縁部とを合成樹脂で一体形成し
て、固定子巻線と鉄心との絶縁及び配線と鉄心やブラケ
ットとの絶縁さらに配線の保護を行なったものである。(D) Configuration of the invention The small electric motor of the present invention has a notch for wiring connection on the outer periphery, and a plurality of iron plates made of a silicon steel plate, an electric iron plate, etc. are laminated on the iron core so that the notches are continuous. Wiring protection walls formed on both sides of the notch along the circumference of the yoke part of the iron core,
The stator winding and the insulating portion of the wiring are integrally formed of synthetic resin to insulate the stator winding from the iron core, to insulate the wiring from the iron core and the bracket, and to protect the wiring.
(ホ) 実施例 以下本発明の実施例を第１図乃至第６図に基づいて説明
すると、先づ第１図において(1)、(2)は小型電動機のブ
ラケットで、このブラケット(1)、(2)は同じ金型で絞り
成形され、特にブラケット(2)には回転軸(3)が貫通する
貫通穴(4)が加工されている。(5)は回転子で上記回転軸
(3)と、硅素鋼板もしくは電気鉄板からなる鉄板を積層
した鉄心(6)と、鉄心(6)の周囲に接着されたフェライト
材の永久磁石(7)とからなっている。(8)は回転軸(3)の
軸受メタルで自動調心構造で支持されている。(9)は鉄
心(10)、合成樹脂材(11)、固定子巻線(12)等からなる固
定子であり第２図、第３図の如き構造をしている。すな
わち第４図に示すように硅素鋼板や電気鉄板等からなり
ヨーク部の外周に磁路の妨げとならないように切欠き(1
3)を設けた鉄板(14)を複数枚切欠き(13)が連続するよう
にかしめ部(15)を用いて積層して鉄心(6)を構成し、こ
の鉄心(6)に合成樹脂材(11)で絶縁をすると共に、切欠
き(13)の連続した所に周壁が合成樹脂で絶縁された保護
筒(16)と、鉄心(6)のヨーク部の円周にわたって保持筒
(16)の両側に配線保護壁(17)、(18)と、固定子巻線(12)
の支持棒(19)とが合成樹脂で一体成形され、外周側の配
線保護壁１７と内周側の配線保護壁１８との間が配線通
路になっている。尚、(20)は固定子巻線(12)からの渡り
線を配線保護壁(17)、(18)内へ導くガイド棒であり、配
線通路の配線保護壁１８の引出口に設けられている。ま
た(21)は固定子巻線(12)の巻数が増加しウエッジの挿入
を必要とする場合にウエッジを挿入するための溝であ
る。(E) Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. First, in FIG. 1, (1) and (2) are brackets of a small electric motor. , (2) are drawn by the same mold, and in particular, the bracket (2) is provided with a through hole (4) through which the rotary shaft (3) passes. (5) is a rotor and the above-mentioned rotating shaft
(3), an iron core (6) in which iron plates made of a silicon steel plate or an electric iron plate are laminated, and a permanent magnet (7) made of a ferrite material adhered around the iron core (6). (8) is a bearing metal of the rotating shaft (3) and is supported by a self-centering structure. Reference numeral (9) is a stator composed of an iron core (10), a synthetic resin material (11), a stator winding (12), etc., and has a structure as shown in FIGS. That is, as shown in FIG. 4, a notch (1) is formed on the outer circumference of the yoke part so as not to obstruct the magnetic path, which is made of a silicon steel plate or an electric iron plate.
An iron core (6) is formed by stacking a plurality of iron plates (14) provided with 3) so that a plurality of cutouts (13) are continuous using a caulking portion (15), and a synthetic resin material is formed on the iron core (6). Insulating with (11), a protective cylinder (16) whose peripheral wall is insulated with synthetic resin in a continuous place of the notch (13), and a holding cylinder over the circumference of the yoke part of the iron core (6)
Wiring protection walls (17), (18) on both sides of (16) and stator winding (12)
The support rod (19) is integrally formed of synthetic resin, and a wiring passage is formed between the wiring protection wall 17 on the outer peripheral side and the wiring protection wall 18 on the inner peripheral side. Reference numeral (20) is a guide rod for guiding the connecting wire from the stator winding (12) into the wiring protection walls (17) and (18), and is provided at the outlet of the wiring protection wall 18 in the wiring passage. There is. Further, reference numeral (21) is a groove for inserting a wedge when the number of windings of the stator winding (12) increases and it is necessary to insert the wedge.
以上の如く構成された固定子(5)に固定子巻線(12)を装
着した状態を第５図、第６図に基づいて説明すると、支
持棒(19)で固定子巻線(12)が支持されており、結束糸等
で固定子巻線(12)の成形を行なわなくとも固定子巻線(1
2)を所定位置に固定することができる。また固定子巻線
(12)からの渡り配線がガイド棒(20)を介して保護壁(1
7)、(18)の間に導かれている。このガイド棒(20)は固定
子巻線(12)を巻く巻線機のインデックス時に渡り配線の
引出し処理を容易にすることができるものである。さら
に渡り配線は保護壁(17)、(18)の間に配置することによ
り鉄心やブラケットに対し絶縁され保護がされている。
配線どうしの接続は保護筒(16)の内部で行なわれ、鉄心
やブラケットに対する絶縁や保護と併せ接続部を渡り配
線から離して別個の保護手段を不要としている。The state in which the stator winding (12) is attached to the stator (5) configured as described above will be described with reference to FIGS. 5 and 6 by using the support rod (19). Is supported, and the stator winding (1
2) can be fixed in place. Also stator winding
The crossover wire from (12) is connected to the protective wall (1
Guided between 7) and (18). This guide rod (20) can facilitate the drawing-out process of the crossover wiring at the time of indexing the winding machine for winding the stator winding (12). Further, the crossover wiring is arranged between the protection walls (17) and (18) to be insulated and protected from the iron core and the bracket.
The wirings are connected inside the protective tube (16), and in addition to the insulation and protection for the iron core and the bracket, the connecting portion is separated from the wiring and a separate protection means is not required.
上記の渡り配線はコネクタ(22)を介して外部引出し線(2
3)へ接続されている。The above crossover wiring is connected to the external lead wire (2
It is connected to 3).
尚、上記実施例における鉄板(14)の切欠き(13)は上記形
状に限るものではなく、穴形状など鉄板(14)を複数枚積
層した時に導線の通る筒や溝などが形成されれば良いも
のである。Incidentally, the notch (13) of the iron plate (14) in the above embodiment is not limited to the above shape, and if a tube or a groove through which a conducting wire passes is formed when a plurality of iron plates (14) such as a hole shape are laminated. It is a good one.
(ヘ) 発明の効果 以上の如く本発明の小型電動機の固定子は鉄心を合成樹
脂でモールドする際に渡り配線を接続する保持筒とこの
保持筒の両側に円周に沿った保護壁とを構成したので、
従来の如き保護チューブなどの保護手段を別個に設けず
とも渡り配線及び渡り配線どうしの接続部を保護ができ
ると同時に、鉄心やブラケットとの絶縁は開口部を除き
完全にできるものである。(F) Effects of the Invention As described above, the stator of the small-sized motor of the present invention has a holding cylinder for connecting crossover wiring when the iron core is molded with synthetic resin, and protective walls along the circumference on both sides of the holding cylinder. Because I configured
It is possible to protect the crossover wiring and the connecting portion between the crossover wirings without separately providing a protection means such as a conventional protective tube, and at the same time, to completely insulate the iron core and the bracket except the opening.
また、渡り配線及び渡り配線どうしの接続部は、配線保
護壁間の配線通路から出ないので、固定子のヨークの幅
を配線通路の幅まで狭くしても配線の保護が保たれるも
のである。すなわち、ヨーク幅を狭くしても配線とブラ
ケットとの保護距離が確保されるので、ヨーク幅を狭く
して電動機の径を小さくすることが可能になる。従っ
て、電動機の小型化が可能になるものである。この時、
保持筒は磁路の妨げとならないように設けられているの
で、ヨーク幅を狭くしても磁気抵抗が増して電動機の運
転効率の悪化を抑制できる。Further, since the crossover wiring and the connecting portion between the crossover wirings do not come out of the wiring passage between the wiring protection walls, the wiring can be protected even if the width of the yoke of the stator is narrowed to the width of the wiring passage. is there. That is, since the protection distance between the wiring and the bracket is secured even if the yoke width is narrowed, it is possible to reduce the yoke width and reduce the diameter of the electric motor. Therefore, the size of the electric motor can be reduced. At this time,
Since the holding cylinder is provided so as not to obstruct the magnetic path, even if the yoke width is narrowed, the magnetic resistance increases and the deterioration of the operating efficiency of the electric motor can be suppressed.
尚、保護壁の間に配線を備えた後、この保護壁の間を絶
縁物でモールドするか、もしくは上方から絶縁板を嵌合
すれば配線の保護及び絶縁の効果が増大するものであ
る。After the wiring is provided between the protective walls, if the space between the protective walls is molded with an insulating material or an insulating plate is fitted from above, the effect of protecting and insulating the wiring is enhanced.
第１図は本発明の実施例を示す小型電動機の断面図、第
２図は第１図に示す固定子の正面図、第３図は第２図の
III−III′断面図、第４図は第１図に示す鉄板の正面
図、第５図は第２図の固定子に固定子巻線、コネクタを
装着した正面図、第６図は第５図の側面図である。 (6)……鉄心、(11)……合成樹脂部、(12)……固定子巻
線、(13)……切欠き、(14)……鉄板、(17)、(18)……配
線保護壁。1 is a sectional view of a small electric motor showing an embodiment of the present invention, FIG. 2 is a front view of the stator shown in FIG. 1, and FIG.
III-III 'sectional view, FIG. 4 is a front view of the iron plate shown in FIG. 1, FIG. 5 is a front view in which the stator winding and the connector are attached to the stator of FIG. 2, and FIG. It is a side view of a figure. (6) …… iron core, (11) …… synthetic resin part, (12) …… stator winding, (13) …… notch, (14) …… iron plate, (17), (18) …… Wiring protection wall.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭49−3101（ＪＰ，Ａ) 特開 昭57−28536（ＪＰ，Ａ) 実開 昭57−111052（ＪＰ，Ｕ) 欧州特許出願公開64105（ＥＰ，Ａ１) ─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-49-3101 (JP, A) JP-A-57-28536 (JP, A) Practical application Sho-57-111052 (JP, U) European Patent Application Publication 64105 (EP, A1)
Claims (1)
と、歯と相対向するヨークの外周位置に設けられた切欠
とを有する硅素鋼板や電気鉄板を積層して成る固定子鉄
心において、固定子鉄心の端面に絶縁部を設けると共
に、絶縁部上のヨークに対応する円周にわたって外周側
の配線保護壁及び内周側の配線保護壁を成形して前記歯
に巻かれた固定子巻線間の渡り線収納用の配線通路を構
成し、絶縁部に配線通路へ連通する開口を有し、かつ前
記切欠内に突出した筒を成形して固定子巻線間の接続部
を収納する保持筒を構成し、前記内周側の配線保護壁に
は渡り線を配線通路から出す引出口を設けたことを特徴
とする小型電動機。1. A stator core formed by laminating silicon steel plates or electric iron plates having a plurality of teeth protruding inward of an annular yoke and notches provided at outer peripheral positions of the yoke facing the teeth, An insulating portion is provided on the end surface of the stator core, and a wiring protection wall on the outer peripheral side and a wiring protection wall on the inner peripheral side are formed over the circumference corresponding to the yoke on the insulating portion, and the stator winding is wound around the teeth. A wiring passage for accommodating a crossover between wires is formed, and an insulating portion has an opening communicating with the wiring passage, and a cylinder protruding into the notch is formed to accommodate a connecting portion between stator windings. A small electric motor comprising a holding cylinder, and a wiring protection wall on the inner peripheral side is provided with an outlet for taking out a connecting wire from a wiring passage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58066091A JPH0638698B2 (en) | 1983-04-13 | 1983-04-13 | Small electric motor |
| US06/562,434 US4495450A (en) | 1982-12-29 | 1983-12-16 | Control device for brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58066091A JPH0638698B2 (en) | 1983-04-13 | 1983-04-13 | Small electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59191445A JPS59191445A (en) | 1984-10-30 |
| JPH0638698B2 true JPH0638698B2 (en) | 1994-05-18 |
Family
ID=13305840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58066091A Expired - Lifetime JPH0638698B2 (en) | 1982-12-29 | 1983-04-13 | Small electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638698B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715782A (en) * | 2013-11-30 | 2014-04-09 | 浙江京马电机有限公司 | Insulated integrally-molded iron core structure |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61227648A (en) * | 1985-04-02 | 1986-10-09 | Matsushita Electric Ind Co Ltd | Stator of motor |
| JPH05184092A (en) * | 1992-01-06 | 1993-07-23 | Shibaura Eng Works Co Ltd | Molded motor |
| JP3680482B2 (en) * | 1997-03-28 | 2005-08-10 | 松下電器産業株式会社 | Electric motor stator constituent member, electric motor stator, electric motor manufacturing method |
| JP3432391B2 (en) * | 1997-06-26 | 2003-08-04 | 三菱電機株式会社 | Mold stator |
| JP4594718B2 (en) * | 2004-12-15 | 2010-12-08 | 日本電産シバウラ株式会社 | Manufacturing method of mold motor |
| JP5132669B2 (en) * | 2009-12-24 | 2013-01-30 | 三菱電機株式会社 | Resolver stator |
| JP2014103827A (en) * | 2012-11-22 | 2014-06-05 | Panasonic Corp | Brushless motor and washing machine mounted therewith |
| JP2014143844A (en) * | 2013-01-24 | 2014-08-07 | Panasonic Corp | Brushless motor and washing machine with the same |
| JP6364703B2 (en) * | 2013-04-08 | 2018-08-01 | ダイキン工業株式会社 | Stator, motor and compressor |
| JP6330333B2 (en) * | 2014-01-14 | 2018-05-30 | 日本電産株式会社 | motor |
| JP5885179B2 (en) * | 2013-12-13 | 2016-03-15 | 三菱電機株式会社 | Mechanical and electric rotating machine |
| WO2015159322A1 (en) * | 2014-04-17 | 2015-10-22 | パナソニックＩｐマネジメント株式会社 | Brushless motor and washing machine mounted with same |
| WO2015162633A1 (en) * | 2014-04-21 | 2015-10-29 | パナソニックＩｐマネジメント株式会社 | Brushless motor and washing machine mounted with same |
-
1983
- 1983-04-13 JP JP58066091A patent/JPH0638698B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715782A (en) * | 2013-11-30 | 2014-04-09 | 浙江京马电机有限公司 | Insulated integrally-molded iron core structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59191445A (en) | 1984-10-30 |
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