JPH0731108A - Varnish impregnation method for electric machine - Google Patents
Varnish impregnation method for electric machineInfo
- Publication number
- JPH0731108A JPH0731108A JP16945793A JP16945793A JPH0731108A JP H0731108 A JPH0731108 A JP H0731108A JP 16945793 A JP16945793 A JP 16945793A JP 16945793 A JP16945793 A JP 16945793A JP H0731108 A JPH0731108 A JP H0731108A
- Authority
- JP
- Japan
- Prior art keywords
- slot
- varnish
- insulator
- gap
- winding
- 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
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、回転電機などの巻線体
に対するワニス処理の方法を改良した電気機器のワニス
含浸方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for impregnating varnish of electric equipment, which is an improved method of varnishing a winding body of a rotating electric machine or the like.
【0002】[0002]
【従来の技術】電気機器例えば回転電機においては、鉄
心に巻線を巻装してなる固定子にワニス含浸処理を施
し、固定子の絶縁性,耐熱性の向上や強度の向上、又更
には固定子鉄心スロット内のワニスの充填率を高めて、
固定子巻線が発する熱を効率的に放散させることを行っ
ている。この種のワニス含浸処理方法として、従来は固
定子巻線にワニスを滴下して固定子鉄心スロット内へ導
く滴下含浸法を用いている。2. Description of the Related Art In an electric device such as a rotary electric machine, a stator made by winding a wire around an iron core is impregnated with varnish to improve the insulation, heat resistance and strength of the stator. Increase the filling rate of varnish in the stator core slot,
The heat generated by the stator windings is efficiently dissipated. As a varnish impregnation treatment method of this type, conventionally, a dripping impregnation method in which varnish is dropped on a stator winding and guided into a stator core slot is used.
【0003】従来技術について図5,図6を用いて説明
する。図5は従来の技術を示す概略外観図で、図6は一
部欠載X−X断面矢視図を示す。従来の滴下含浸法で
は、固定子鉄心1を傾斜させ巻線2の一方の端面よりノ
ズル3からワニスを滴下させ、巻線2を伝わせてスロッ
ト9内に充填させていた。スロット9内には図6に示す
様にスロット9内周面にスロット絶縁物4を敷き、その
内側に素線5を納め、更に相間絶縁物7,楔6を配して
いる。ワニスは、このスロット9内でスロット絶縁物4
内の素線5と相間絶縁物7或いは素線5との間に充填さ
れ、ワニスによる絶縁層8を形成する。これにより、巻
線2の熱の放散や、動的或いは静的剛性の向上をはかる
ものである。A conventional technique will be described with reference to FIGS. FIG. 5 is a schematic external view showing a conventional technique, and FIG. 6 is a partially cutaway XX cross sectional view. In the conventional drip impregnation method, the stator core 1 is tilted and the varnish is dripped from the nozzle 3 from one end surface of the winding 2, and the winding 2 is transmitted to fill the slot 9. As shown in FIG. 6, inside the slot 9, a slot insulator 4 is laid on the inner peripheral surface of the slot 9, a wire 5 is housed inside the slot insulator 4, and an interphase insulator 7 and a wedge 6 are further arranged. The varnish has a slot insulator 4 inside the slot 9.
An insulating layer 8 made of varnish is formed by filling the space between the inner wire 5 and the interphase insulator 7 or the wire 5. As a result, the heat of the winding 2 is dissipated and the dynamic or static rigidity is improved.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、これら
の滴下含浸法においては、スロット9とスロット絶縁物
4との隙間11にはワニスが十分に流れ込まず、またス
ロット9と絶縁物4との隙間11で特にスロット底10
の両角部においては、スロット絶縁物4がスロット9の
形状に沿わずに大きな連続的に隙間を生じ易く、ワニス
を加熱乾燥して硬化させる段階においてスロット9とス
ロット絶縁物4との隙間11でワニスを十分に保持しき
れずに流出し、ワニスの充填率を高められない結果とな
る。However, in these drip impregnation methods, the varnish does not sufficiently flow into the gap 11 between the slot 9 and the slot insulator 4, and the gap 11 between the slot 9 and the insulator 4 is present. And especially the slot bottom 10
At both corners of the slot insulator 4, the slot insulator 4 is likely to form a large continuous gap without following the shape of the slot 9, and in the gap 11 between the slot 9 and the slot insulator 4 at the stage of heating and drying and curing the varnish. As a result, the varnish cannot be sufficiently retained and flows out, so that the filling rate of the varnish cannot be increased.
【0005】本発明の目的は、ワニス滴下ノズルより滴
下しスロット内へ充填させる滴下含浸法で、スロットと
スロット絶縁物との隙間へワニスを十分に流し込みワニ
スを加熱乾燥して硬化させる段階において、ワニスを流
出させない様にスロット内に保持し硬化させ充填率の高
い絶縁層を形成することにある。The object of the present invention is a drop impregnation method in which the varnish is dropped from a varnish dropping nozzle and filled in the slot. In the step of pouring the varnish sufficiently into the gap between the slot and the slot insulator to heat and dry the varnish to cure it, The purpose is to hold the varnish in the slots and prevent the varnish from flowing out, and to cure it to form an insulating layer having a high filling rate.
【0006】[0006]
【課題を解決するための手段】本発明のワニス含浸方法
は、ワニスを滴下ノズルより滴下し、スロット内に充填
する滴下含浸法において、滴下ノズル固定子鉄心より飛
び出したスロット絶縁物の外側にワニスが滴下できる様
に位置し、回転子鉄心の下端部をスロットとスロット絶
縁物との隙をなくするためにスロット形状をスロット絶
縁物に沿った形状にする。又は、スロットとスロット絶
縁物の隙間に詰め物を施こすことにより、スロットとス
ロット絶縁物との隙間へのワニスの注入とその隙間にお
けるワニスの流出を防ぎ、スロット内のワニスの充填率
を高めることを可能とする特徴のものである。A method for impregnating a varnish according to the present invention is a drip impregnation method in which a varnish is dripped from a drip nozzle and filled in a slot. Is positioned so that the slot core can be dropped, and the lower end portion of the rotor core has a slot shape along the slot insulator in order to eliminate a gap between the slot and the slot insulator. Alternatively, by filling the gap between the slots and the slot insulator with a filling material, it is possible to prevent the varnish from being injected into the gap between the slots and the slot insulator and prevent the varnish from flowing out in the gap, thereby increasing the filling rate of the varnish in the slot. It is a feature that enables
【0007】[0007]
【作用】本発明のワニス含浸方法によれば、固定子鉄心
より飛び出したスロット絶縁物の外側にワニスを滴下す
ることによりスロットとスロット絶縁物との隙間へのワ
ニスの流入が可能となる。また鉄心下端部において、ス
ロットとスロット絶縁物との隙間をなくすることによ
り、スロットとスロット絶縁物に流入したワニスは流出
することなく保持でき、ワニスの充填率を高めることを
可能とする。According to the varnish impregnating method of the present invention, the varnish can be introduced into the gap between the slot and the slot insulator by dropping the varnish on the outside of the slot insulator protruding from the stator core. Further, by eliminating the gap between the slot and the slot insulator at the lower end of the iron core, the varnish that has flowed into the slot and the slot insulator can be held without flowing out, and the filling rate of the varnish can be increased.
【0008】[0008]
【実施例】以下本考の実施例を図1乃至図4を用いて説
明する。図1は本考の技術を示す概略外観図で、図2は
図1における一部欠載要部断面図、図3,図4は図1に
おける一部欠載Y−Y断面図を示す。図1乃至図3は請
求項1、図4は請求項2にそれぞれ対応している。尚、
従来と同じものについては同一符号を付けて示す。Embodiments of the present invention will be described below with reference to FIGS. 1 to 4. 1 is a schematic external view showing the technique of the present invention, FIG. 2 is a partial cutaway main part sectional view in FIG. 1, and FIG. 3 and FIG. 4 are partial cutaway YY sectional views in FIG. 1 to 3 correspond to claim 1, and FIG. 4 corresponds to claim 2. still,
The same parts as those of the conventional one are designated by the same reference numerals.
【0009】図1,図2において、基本的な構成は従来
の技術と同様であるが、本発明の特徴はワニスを滴下さ
せるノズル12を巻線2のみでなく、固定子鉄心1より
飛び出したスロット絶縁物4の外側にワニスを滴下でき
る様に位置したことにある。これによれば、従来巻線2
に滴下させたワニスを巻線2の伝わりにてスロット9に
充填させた場合、スロット絶縁物4内のワニスの充填に
とどまったのが、スロット絶縁物4の外側に滴下された
ワニスがスロット絶縁物4の外側を伝わりスロット9と
スロット絶縁物4との隙間へワニス流入させることを可
能とし、スロット9内でのワニス充填率を高めることを
可能とする。以上より、本発明によれば、ワニスの充填
率の高い絶縁層8を形成させることができる。1 and 2, the basic structure is the same as that of the prior art, but the feature of the present invention is that the nozzle 12 for dropping the varnish protrudes from not only the winding 2 but also the stator core 1. It is located so that the varnish can be dropped on the outside of the slot insulator 4. According to this, the conventional winding 2
When the varnish dropped onto the slot 9 was filled with the varnish transmitted through the winding 2, the filling of the varnish inside the slot insulator 4 was limited to the varnish dropped outside the slot insulator 4. It is possible to allow the varnish to flow through the outside of the object 4 into the gap between the slot 9 and the slot insulator 4 and to increase the varnish filling rate in the slot 9. As described above, according to the present invention, the insulating layer 8 having a high varnish filling rate can be formed.
【0010】又、図3において固定子鉄心1の下端で電
気特性に影響を及ぼさない程度の幅のスロット13の形
状をスロット絶縁物4に沿わせて、スロット9とスロッ
ト絶縁物4との隙間11で特にスロット底10の両角部
の大きな連続的な隙間を通って流出してしまうワニスを
固定子鉄心1の下端のみ隙間をなくすることによって保
持することを可能とし、スロット9内でのワニスの充填
率を高めることを可能とする。Further, in FIG. 3, the shape of the slot 13 having a width that does not affect the electric characteristics at the lower end of the stator core 1 is arranged along the slot insulator 4, and the gap between the slot 9 and the slot insulator 4 is formed. 11 makes it possible to retain the varnish that flows out through the large continuous gaps at both corners of the slot bottom 10 by eliminating the gap only at the lower end of the stator core 1, and the varnish in the slot 9 can be retained. It is possible to increase the filling rate of.
【0011】更に、図4において、固定子鉄心1の下端
でスロット9とスロット絶縁物4との隙間11で、特に
スロット底10の両角部の大きな連続的な隙間に詰め物
14を注入することにより隙間をなくし、上記と同様の
ワニスの流出を防止する効果が期待できるものである。
尚、本発明は固定子に限定されるものではなく、回転子
においても同様の効果を得られるものである。Further, referring to FIG. 4, by filling the gap 14 at the lower end of the stator core 1 with the gap 11 between the slot 9 and the slot insulator 4, particularly the large continuous gaps at both corners of the slot bottom 10, the filling material 14 is injected. The effect of preventing the outflow of varnish similar to the above can be expected by eliminating the gap.
The present invention is not limited to the stator, and similar effects can be obtained with the rotor.
【0012】[0012]
【発明の効果】以上の様に、本発明のワニス含浸法によ
れば、スロットとスロット絶縁物への隙間へワニスを流
入しスロットとスロット絶縁物の間に生じる連続的な大
きな隙間より流出するワニスを保持することを可能とす
るので、スロット内のワニスの充填率を高め、高密度の
ワニスの絶縁層を成形し、巻線より発する熱の放散効果
をより高める。又、動的或いは静的剛性をより向上させ
ることができるものである。As described above, according to the varnish impregnation method of the present invention, the varnish flows into the gap between the slots and the slot insulator and flows out from the continuous large gap generated between the slot and the slot insulator. Since the varnish can be retained, the filling rate of the varnish in the slot is increased, a high-density varnish insulating layer is formed, and the effect of dissipating the heat generated from the winding is further enhanced. Further, the dynamic or static rigidity can be further improved.
【図1】本発明の実施例を示す概略外観図、FIG. 1 is a schematic external view showing an embodiment of the present invention,
【図2】本発明の実施例を示す一部欠載要部断面図、FIG. 2 is a partially cutaway cross-sectional view showing an embodiment of the present invention,
【図3】本発明の実施例を示す一部欠載断面図、FIG. 3 is a partially cutaway sectional view showing an embodiment of the present invention,
【図4】図3のの変形例を示す一部欠載断面図、FIG. 4 is a partially cutaway sectional view showing a modified example of FIG.
【図5】従来の技術を示す概略外観図、FIG. 5 is a schematic external view showing a conventional technique,
【図6】従来の技術を示す図4の一部欠載X−X断面矢
視図。6 is a partially cutaway XX cross-sectional view of FIG. 4 showing a conventional technique.
1…固定子鉄心, 2…巻線,4…スロ
ット絶縁物, 9,13…スロット,10…
スロット底, 11…隙間,14詰め物。1 ... Stator core, 2 ... Winding, 4 ... Slot insulator, 9, 13 ... Slot, 10 ...
Slot bottom, 11 ... Gap, 14 padding.
Claims (2)
巻線とからなる固定子及び回転子にワニスを含浸させる
方法において、ワニスの滴下側と対向する鉄心端部のス
ロット形状をスロット絶縁物に沿った形状として、スロ
ットとスロット絶縁物との間に生ずる連続的な隙間をた
ち切り、鉄心の端面より飛び出たスロット絶縁物外面に
ワニスを滴下させスロット内のワニスの充填率を高めた
ことを特徴とする電気機器のワニス含浸方法。1. A method of impregnating a stator and a rotor, which comprises an iron core and windings mounted in slots of the iron core, with a varnish, wherein a slot shape of a slot insulator at an end of the iron core facing a varnish dropping side is used. As a shape along with, the continuous gap created between the slot and the slot insulator was cut off, and varnish was dropped on the outer surface of the slot insulator protruding from the end surface of the iron core to increase the filling rate of the varnish in the slot. A method for impregnating a varnish of an electric device, comprising:
巻線とからなる固定子及び回転子にワニスを含浸させる
方法において、ワニスの滴下側と対向する鉄心端部のス
ロットとスロット絶縁物との隙間に詰め物を注入して、
スロットとスロット絶縁物との間に生ずる連続的な隙間
をたち切り、鉄心の端面より飛び出たスロット絶縁物外
面にワニスを滴下させ、スロット内の充填率を高めたこ
とを特徴とする電気機器のワニス含浸方法。2. A method of impregnating a stator and a rotor, which comprises an iron core and windings installed in the slots of the iron core, with varnish, wherein a slot at the end of the iron core facing the drip side of the varnish and a slot insulator are provided. Inject the filling into the gap of
The continuous gap generated between the slot and the slot insulator is cut off, and varnish is dropped on the outer surface of the slot insulator protruding from the end surface of the iron core to increase the filling rate in the slot. Varnish impregnation method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16945793A JPH0731108A (en) | 1993-07-09 | 1993-07-09 | Varnish impregnation method for electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16945793A JPH0731108A (en) | 1993-07-09 | 1993-07-09 | Varnish impregnation method for electric machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0731108A true JPH0731108A (en) | 1995-01-31 |
Family
ID=15886947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16945793A Pending JPH0731108A (en) | 1993-07-09 | 1993-07-09 | Varnish impregnation method for electric machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0731108A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100441148B1 (en) * | 2000-03-16 | 2004-07-19 | 미쓰비시덴키 가부시키가이샤 | Stator for an automotive alternator |
US8215260B2 (en) | 2003-09-10 | 2012-07-10 | Aisin Aw Co., Ltd. | Rotary electric machine-manufacturing apparatus and method of manufacturing the same |
JP2014135786A (en) * | 2013-01-08 | 2014-07-24 | Toyota Motor Corp | Stator for rotary electric machine, and rotary electric machine |
CN109921528A (en) * | 2017-12-12 | 2019-06-21 | 发那科株式会社 | Stator and motor |
-
1993
- 1993-07-09 JP JP16945793A patent/JPH0731108A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100441148B1 (en) * | 2000-03-16 | 2004-07-19 | 미쓰비시덴키 가부시키가이샤 | Stator for an automotive alternator |
US8215260B2 (en) | 2003-09-10 | 2012-07-10 | Aisin Aw Co., Ltd. | Rotary electric machine-manufacturing apparatus and method of manufacturing the same |
JP2014135786A (en) * | 2013-01-08 | 2014-07-24 | Toyota Motor Corp | Stator for rotary electric machine, and rotary electric machine |
CN109921528A (en) * | 2017-12-12 | 2019-06-21 | 发那科株式会社 | Stator and motor |
US11245316B2 (en) | 2017-12-12 | 2022-02-08 | Fanuc Corporation | Stator and electric motor |
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