JPS634325B2 - - Google Patents
Info
- Publication number
- JPS634325B2 JPS634325B2 JP11770479A JP11770479A JPS634325B2 JP S634325 B2 JPS634325 B2 JP S634325B2 JP 11770479 A JP11770479 A JP 11770479A JP 11770479 A JP11770479 A JP 11770479A JP S634325 B2 JPS634325 B2 JP S634325B2
- Authority
- JP
- Japan
- Prior art keywords
- electrical equipment
- fluidized
- winding
- equipment winding
- windings
- 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
Links
- 238000004804 winding Methods 0.000 claims description 33
- 239000000843 powder Substances 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】
この発明は、流動浸せき法を用いる電気機器巻
線の絶縁処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for insulating electrical equipment windings using a fluidized immersion method.
電気機器巻線の外周及び素線相互の線間の絶縁
処理を同時に行う方法としては、注型処理方法や
成型処理方法があるが、これらの処理方法を用い
る場合には金型を必要とする為、電気機器巻線の
形状や大きさが異なるとその都度高価な金型を製
作しなければならないという欠点があつた。 Casting and molding methods are methods for simultaneously insulating the outer periphery of electrical equipment windings and between the wires, but these methods require a mold. Therefore, if the shape or size of the electrical equipment windings differs, an expensive mold must be manufactured each time.
この発明は、上記した従来の欠点を除去する為
になされたもので、流動する熱硬化性の粉粒絶縁
体中に電気機器巻線を浸せきして巻線の線間相互
間に粉粒絶縁体を充分に介在させた後電気機器巻
線を通電加熱して粉粒絶縁体を熱硬化させること
により、電気機器巻線の線間絶縁処理及び外周面
絶縁処理を簡単かつ安価に同時に行うことができ
る電気機器巻線の絶縁処理方法を提供することを
目的とする。 This invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology, and involves immersing electrical equipment windings in a flowing thermosetting powder insulator to provide powder insulation between the wires of the winding. To easily and inexpensively simultaneously perform inter-wire insulation treatment and outer circumferential surface insulation treatment of electrical equipment windings by heat-curing the powder insulator by applying electricity to the electrical equipment windings after sufficiently intervening the body. The purpose of the present invention is to provide a method for insulating windings of electrical equipment.
以下、この発明の一実施例を図について説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
図において、１は流動層の容器で多孔底板２上
に流動層となる熱硬化性の粉粒絶縁体３が所定層
高になるまで投入されている。４は加圧空気の噴
射ノズルである。この発明においては、先づ噴射
ノズル４より加圧空気５を噴射し粉粒絶縁体３を
充分に流動させる。次いで流動している粉粒絶縁
体３の層中に電気機器巻線６を所定時間だけ浸せ
きする。粉粒絶縁体３が充分に流動するとこの所
定時間経過後には電気機器巻線６の線間にも粉粒
絶縁体３がまんべんなく流動する。上記所定時間
の経過後加圧空気の噴射を停止して流動槽内を減
圧し、電気機器巻線６に通電し、一定時間だけ電
気機器巻線６を加熱する。この減圧下における加
熱によつて、電気機器巻線６の外周面に粉粒絶縁
体３が溶着して絶縁皮膜が形成されると同時に線
間に介在する粉粒絶縁体３を熱硬化する。一定時
間の上記加熱処理後流動槽内を大気圧に戻し或い
は必要に応じて大気圧以上とし、この状態で、電
気機器巻線６に再通電して所定時間加熱したの
ち、該電気機器巻線６を流動槽から取り出す。こ
の再通電により、電気機器巻線６の表面に被膜を
形成し厚肉化する。 In the figure, reference numeral 1 denotes a fluidized bed container in which a thermosetting powder insulator 3 forming a fluidized bed is placed on a porous bottom plate 2 until a predetermined layer height is reached. 4 is a pressurized air injection nozzle. In this invention, pressurized air 5 is first injected from the injection nozzle 4 to sufficiently flow the powder insulator 3. The electrical equipment winding 6 is then immersed into the flowing layer of granular insulator 3 for a predetermined time. When the powder insulator 3 flows sufficiently, the powder insulator 3 evenly flows between the wires of the electrical equipment winding 6 after the predetermined time has elapsed. After the predetermined time has elapsed, the injection of pressurized air is stopped to reduce the pressure in the fluidized tank, and electricity is applied to the electrical equipment winding 6 to heat the electrical equipment winding 6 for a predetermined period of time. By this heating under reduced pressure, the powder insulator 3 is welded to the outer peripheral surface of the electrical equipment winding 6 to form an insulating film, and at the same time, the powder insulator 3 interposed between the wires is thermally hardened. After the heat treatment for a certain period of time, the inside of the fluidized tank is returned to atmospheric pressure or raised to above atmospheric pressure as necessary, and in this state, the electrical equipment winding 6 is re-energized and heated for a predetermined period of time, and then the electrical equipment winding 6 is heated. 6 is taken out from the fluidized tank. By this re-energization, a film is formed on the surface of the electric device winding 6 and the thickness thereof is increased.
実施例
１馬力の防食型電動機の固定子巻線について、
本発明を実施した。固定子巻線を巻回した固定子
を流動する流動槽内のエポキシ樹脂粉粒体中に所
定時間浸せきした後エポキシ樹脂粉粒体の流動を
停止せしめ、次いで流動槽を密封して流動槽内を
減圧した。流動槽内を減圧した後約２分間固定子
巻線に通電加熱し、流動槽内を大気圧に戻して更
に２Kg／cm2の圧力を加えながら約３分間通電加熱
し、固定子巻線を流動槽から取り出した。取り出
された固定子巻線の内部はゲル化し、外周面には
厚さ約２mmの皮膜が形成されていた。この固定子
を所定時間だけ熱風循環式オーブンに入れてエポ
キシ樹脂を硬化させた後、水中で固定子巻線の絶
縁抵抗を測定したところ従来の処理方法の場合と
同様の絶縁抵抗値を得た。Example Regarding the stator winding of a 1 horsepower anti-corrosion motor,
The invention was implemented. After the stator around which the stator windings are wound is immersed in the epoxy resin powder in the flowing fluidized tank for a predetermined time, the flow of the epoxy resin powder is stopped, and then the fluidized tank is sealed and the fluidized tank is closed. was depressurized. After reducing the pressure inside the fluidized tank, the stator windings are heated with electricity for about 2 minutes, and the inside of the fluidized tank is returned to atmospheric pressure, and then heated with electricity for about 3 minutes while applying a pressure of 2 kg/ cm2 , and the stator windings are heated. It was taken out from the fluidized tank. The inside of the removed stator winding had turned into gel, and a film about 2 mm thick had been formed on the outer circumferential surface. After the stator was placed in a hot air circulation oven for a predetermined period of time to cure the epoxy resin, the insulation resistance of the stator windings was measured underwater, and the same insulation resistance value was obtained as with the conventional treatment method. .
以上のように、この発明によれば、流動層とな
る熱硬化性の粉粒絶縁体を入れた流動槽内の上記
粉粒絶縁体の層内に電気機器巻線を浸せきし、電
気機器巻線を上記層内から取り出すことなく続い
て流動層内を減圧して電気機器巻線に通電加熱す
ることにより電気機器巻線の絶縁処理を行い、再
通電して厚肉被膜を形成するものであるから、従
来の注型絶縁処理や成型絶縁処理の場合と異つて
金型を必要とせず、流動槽の容量を適当にしてお
くことにより、電気機器巻線の絶縁処理を一つの
流動槽を用いて行うことができ、電気機器巻線の
外周及び線間の絶縁処理を従来に比して簡単かつ
安価に同時に行うことができる。 As described above, according to the present invention, an electrical equipment winding is immersed in a layer of the powder insulator in a fluidized bath containing a thermosetting powder insulator serving as a fluidized bed. Without taking the wire out of the layer, the pressure in the fluidized bed is reduced and the electrical equipment winding is heated by applying electricity to insulate the electrical equipment winding, and then the electrical equipment is re-energized to form a thick coating. Therefore, unlike conventional cast-insulation treatment or molded insulation treatment, a mold is not required, and by keeping the capacity of the fluidization tank appropriate, insulation treatment of electrical equipment windings can be performed in one fluidization tank. It is possible to perform the insulation treatment on the outer periphery of the electrical equipment winding and between the wires at the same time more easily and inexpensively than in the past.
図はこの発明による電気機器巻線の絶縁処理方
法を説明する為の図である。
図において、１……流動槽の容器、３……熱硬
化性の粉粒絶縁体、６……電気機器巻線。
The figure is a diagram for explaining a method for insulating electrical equipment windings according to the present invention. In the figure, 1... Container of fluidized tank, 3... Thermosetting powder insulator, 6... Electric equipment winding.
Claims (1)
中に電気機器巻線を浸せきする工程と該工程に続
き上記流動を停止した後上記流動槽内を負圧にし
て上記電気機器巻線を所定時間通電加熱する工程
と該工程に続き流動槽内を大気圧もしくは大気圧
以上にして上記電気機器巻線を所定時間再通電加
熱する工程とを含むことを特徴とする電気機器巻
線の絶縁処理方法。1. A step of immersing the electrical equipment winding into a layer of thermosetting powder insulator flowing in a fluidized fluidized tank, and following this step, after stopping the flow, the fluidized fluidized tank is made to have a negative pressure and the electrical equipment winding is immersed. An electrical equipment winding characterized by comprising the steps of heating the wire with electricity for a predetermined period of time, and following the step of heating the electrical equipment winding with electricity for a predetermined period of time by bringing the inside of the fluidized bath to atmospheric pressure or above atmospheric pressure. insulation treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11770479A JPS5640221A (en) | 1979-09-11 | 1979-09-11 | Insulation treatment method for electrical equipment-use winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11770479A JPS5640221A (en) | 1979-09-11 | 1979-09-11 | Insulation treatment method for electrical equipment-use winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5640221A JPS5640221A (en) | 1981-04-16 |
| JPS634325B2 true JPS634325B2 (en) | 1988-01-28 |
Family
ID=14718236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11770479A Granted JPS5640221A (en) | 1979-09-11 | 1979-09-11 | Insulation treatment method for electrical equipment-use winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5640221A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5878410A (en) * | 1981-06-25 | 1983-05-12 | Mitsubishi Electric Corp | Insulation processing for coil |
| JPS6078020A (en) * | 1983-10-05 | 1985-05-02 | Chiyoda Tech & Ind Co Ltd | Construction of leaning type concrete retaining wall |
| JPH0593700U (en) * | 1992-05-26 | 1993-12-21 | 株式会社関東商会 | Safety equipment for press machines |
-
1979
- 1979-09-11 JP JP11770479A patent/JPS5640221A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5640221A (en) | 1981-04-16 |
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