JPS59162745A - Insulation of totally impregnated coil of rotary electric machine - Google Patents
Insulation of totally impregnated coil of rotary electric machineInfo
- Publication number
- JPS59162745A JPS59162745A JP3611483A JP3611483A JPS59162745A JP S59162745 A JPS59162745 A JP S59162745A JP 3611483 A JP3611483 A JP 3611483A JP 3611483 A JP3611483 A JP 3611483A JP S59162745 A JPS59162745 A JP S59162745A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- insulating layer
- insulation
- mica
- electric machine
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000010445 mica Substances 0.000 claims abstract description 21
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000002966 varnish Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 241000287828 Gallus gallus Species 0.000 claims 1
- 238000003618 dip coating Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 abstract description 4
- 229920000647 polyepoxide Polymers 0.000 abstract description 4
- 229920001225 polyester resin Polymers 0.000 abstract description 3
- 239000004645 polyester resin Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 14
- 238000007796 conventional method Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001962 electrophoresis Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は回転電機の全含浸コイル絶縁方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for insulating a fully impregnated coil of a rotating electric machine.
一般に、回転電機の全含浸コイル絶縁方法は・亀甲形に
巻回されたコイルの全周を絶縁テープで巻回し、鉄心の
スロット内へ挿入したのち、リード部等を接続後、接続
部に絶縁テープを巻回する。その後、全体を含浸タンク
中にて絶縁ワニスを真空加圧含浸し、乾燥炉中で加熱硬
化させて絶縁層を形成する方法が広く採用されている。In general, the method for insulating all impregnated coils of rotating electric machines is to wrap the entire circumference of the coil in a hexagonal shape with insulating tape, insert it into the slot of the iron core, connect the leads, etc., and then insulate the connected part. Wind the tape. Thereafter, a widely used method is to impregnate the entire structure with insulating varnish under vacuum pressure in an impregnation tank, and heat and harden it in a drying oven to form an insulating layer.
この全含浸コイル絶縁方法は、第１図に示す如くスロッ
トｍ（１）と、コイルエンド部（２）と、ノ−ズ部（３
）と、リード部（４）とから構成されたコイル（５）単
体時において、スロット部（１）、コイルエンド部（２
）Ｓノーズ部（３）Ｓ リード部（４）の全てにマイカ
テープを巻装し、マイカテープ絶縁からなる絶縁層（６
）を形成する。This fully impregnated coil insulation method consists of a slot m(1), a coil end portion (2), and a nose portion (3) as shown in FIG.
) and a lead part (4), when the coil (5) is alone, the slot part (1) and the coil end part (2
) S nose part (3) S lead part (4) is all wrapped with mica tape, and an insulating layer (6
) to form.
その後１第２図に示す如くコイル（５）を鉄心（′ｒ）
の溝に挿入し、リード部（４）および位相リング（８）
を接続し、その後この接続部にマイカテープ絶縁で絶縁
層（６）を施し、コイルエンド部（２）の支持としてコ
イルエンド部（２）の相互間にスペーサ（９）を打込み
１かつコイルエンド部（２）の先端部外ＬＤにプレース
リング（１０）の取付けを行なう。After that, the coil (5) is attached to the iron core ('r) as shown in Figure 2.
Insert into the groove of the lead part (4) and phase ring (8).
After that, an insulating layer (6) is applied to this connection part using mica tape insulation, and a spacer (9) is implanted between the coil end parts (2) to support the coil end part (2). A place ring (10) is attached to the outer LD of the tip part (2).
次に、全体を含浸タンク中に装填し、絶縁ワニスを真空
加圧含浸した後、乾燥炉中で加熱硬化させ絶縁層（６）
を形成するものである。Next, the entire body is loaded into an impregnating tank and impregnated with insulating varnish under vacuum pressure, and then heated and cured in a drying oven to form an insulating layer (6).
It forms the
しかしながら、上記の従来の方法では、マイカテープ巻
装方法として、コイル単体時においては、スロット部（
１）やコイルエンド部（２）の一部には、例えはテーピ
ングマシンのような機械による作業が可能であるが、ノ
ーズ部（３）やリード部（ａｌおよび鉄心（７）へのコ
イル（５）挿入後のリード部（４）、並びに位相リング
（８）結線部のマイカテープ巻装は、その形状の複雑さ
から手作業に頼らざるを得ず、作業に長時間を要する上
、マイカテープ巻装作業性が悪いため、絶縁ワニス含浸
硬化処理後においても十分に緻密な絶縁層（６）とする
ことは困難であり、絶縁上の弱点個所も殆どすべてかこ
の部分に集中しており、絶縁処理上の大きな難点とされ
ていた。However, in the above-mentioned conventional method, the mica tape winding method does not cover the slot portion (
1) and a part of the coil end part (2) can be worked with a machine such as a taping machine, but the coil ( 5) Wrapping the lead part (4) and the phase ring (8) connection part after insertion with mica tape has to be done manually due to the complexity of the shape, which requires a long time and requires mica tape. Due to the poor workability of tape winding, it is difficult to obtain a sufficiently dense insulation layer (6) even after insulating varnish impregnation and hardening treatment, and almost all weak points in insulation are concentrated in this area. , which was considered to be a major difficulty in insulation processing.
この発明は上記の点に鑑みてなされたもめで、コイル（
５）のスロットｇ（１）、およびコイルエンド部（２）
の一部は、マイカテープまたはマイカシートにより絶縁
層（６）を形成し、ノーズ部（３）やリード部（４）お
よび位相リング（８）部は、例えはエポキシ樹脂、ポリ
エステル樹脂等の熱硬化性樹脂により絶縁に１３）Ｇ形
成した回転電機の全含浸コイル絶縁方法を提供すること
を目的としている。This invention was made in view of the above points, and the coil (
5) slot g (1) and coil end part (2)
A part of the insulating layer (6) is made of mica tape or mica sheet, and the nose part (3), lead part (4) and phase ring (8) part are made of a heat-resistant material such as epoxy resin or polyester resin. The object of the present invention is to provide a method for insulating a fully impregnated coil of a rotating electric machine in which insulation is formed by 13)G using a curable resin.
熱硬化性樹脂の絶縁被覆層は、粉体塗装、電気泳動法、
チキン）ａピック性樹脂による浸漬法があるが、この発
明の一実施例として粉体塗装を例にして図について説明
する。The thermosetting resin insulation coating layer can be formed by powder coating, electrophoresis,
There is a dipping method using a pick resin, but the drawings will be explained using powder coating as an example of an embodiment of the present invention.
まずコイル（５）単体時においては、第３図に示す如く
スロット部（１）を含むコイルエンド部（２）の範囲ま
で、マイカテープまたはマイカシート１こよる絶縁層（
６）を施し、ノーズ部（３）やリード部（４）には何ら
絶縁を施すことなく、第４図の如くコイル（５）を鉄心
（′７）の溝に挿入する。First, when the coil (5) is used as a single unit, as shown in Fig. 3, an insulating layer (1) of mica tape or mica sheet is applied to the range of the coil end portion (2) including the slot portion (1).
6), and the coil (5) is inserted into the groove of the iron core ('7) as shown in FIG. 4 without applying any insulation to the nose part (3) or lead part (4).
次に１リ一ド部（ａの結線接続並びにリード部（４）と
位相リング（８）との接続を行なう。位相リング（８）
の部分は、互いに適当な間隔が保てるようスペーサ（１
１）を挿入し、その部分を絶縁テープ等の緊縛材料（１
２）で緊縛固定した後、固定子全体を含浸タンク中にて
絶縁ワニスを真空加圧含浸し、乾燥炉中で加熱硬化させ
る。そノ後、コイルエンド部（２）の保持として、スペ
ーサ（９）およびプレースリンｉ゛＜ １０ ＞を取付
ける。Next, connect the 1 lead part (a) and connect the lead part (4) and the phase ring (8).
spacers (1) to maintain an appropriate distance from each other.
1), and wrap that part with binding material such as insulating tape (1).
After being tied and fixed in step 2), the entire stator is impregnated with insulating varnish under vacuum pressure in an impregnating tank, and then heated and cured in a drying oven. Thereafter, a spacer (9) and a place ring i<10> are attached to hold the coil end portion (2).
このスペーサ（９）は例えはエポキシガラス積層板また
はエポキシ樹脂等を含浸させたフェルト状の絶縁材のよ
うな電気的特性、機械的特性にすぐれたものを、コイル
エンド部（２）の相互間の適当な位置に強固に挿入する
。またプレースリング（１０）は例えばプリプレグガラ
スロービング材のように電気的特性、機械的特性にすぐ
れたものを、コイルエンド部（２）の先端部外周にコイ
ル（５）によく接触させて適当な回数巻付けて構成する
。This spacer (9) is made of a material with excellent electrical and mechanical properties, such as an epoxy glass laminate or a felt-like insulating material impregnated with epoxy resin, between the coil ends (2). firmly insert it into the appropriate position. The place ring (10) is made of a material with excellent electrical and mechanical properties, such as a prepreg glass roving material, and is made of a material with excellent electrical and mechanical properties, which is placed in good contact with the coil (5) on the outer periphery of the tip of the coil end (2). Constructed by winding it several times.
上記作業終了後１粉体塗装を良好に行なうために固定子
全体を予備加熱し、十分加熱された状態で固定子を立置
にして、コイルエンド部（２）を絶縁層（６）と適当に
ラップする範囲まで流動浸漬層に浸漬し、コイルエンド
部（２）、ノーズ部（３）、リード部（４）、位相リン
グ部（８）の全てにエポキシ樹脂、ポリエステル樹脂等
の粉体塗装絶縁を一括しておこない、絶縁層（１３）を
形成する。After completing the above work 1. Preheat the entire stator in order to perform the powder coating well, stand the stator upright in a sufficiently heated state, and coat the coil end part (2) with the insulating layer (6) as appropriate. The coil end part (2), nose part (3), lead part (4), and phase ring part (8) are all coated with powder such as epoxy resin or polyester resin. Insulation is performed all at once to form an insulating layer (13).
第５図は従来方法とこの発明の方法とによるコイル絶縁
処理作業時間の比較を示す。すなわち、従来方法は、コ
イルス四ット部絶縁作業（１４）、コイルエンド部絶縁
作業（１５）、鉄心へのコイル挿入接続作業（１６）、
接続部絶縁作業（１７）に大別され、各作業の時間配分
は各々１５％、３０％、３０％、２５％であったが、こ
の発明の方法によれば、スロット部絶縁作業（１４）、
鉄心へのコイル挿入接続作業（１６）、粉体絶縁作業（
１８）のみとなり、従来方法の５０％の作業時間で絶縁
処理が可能となる。FIG. 5 shows a comparison of coil insulation processing time between the conventional method and the method of the present invention. That is, the conventional method includes insulating the four coil parts (14), insulating the coil end part (15), inserting and connecting the coil into the iron core (16),
The work is roughly divided into connection part insulation work (17), and the time allocation for each work is 15%, 30%, 30%, and 25%, respectively, but according to the method of this invention, slot part insulation work (14) ,
Coil insertion and connection work into the iron core (16), powder insulation work (
18), and the insulation process can be completed in 50% of the work time of the conventional method.
第６図は従来方法とこの発明の方法とにより絶縁処理さ
れたコイルの５％Ｎａ０ｌ溶液中での急速上昇法による
交流短時間絶縁破壊電圧値を示すものである。すなわち
、第７図に示すように５％Ｎａｐｌ溶液（１９）が入れ
られた容器（２０）内に、絶縁処理されたコイル（５）
を入れ、交流電源（２１）の交流電圧を急速上昇させた
場合の、従来方法で絶縁処理されたコイル（５）の交流
短時間絶縁破壊電圧の平均値マを１００％として、縦軸
に絶縁破壊電圧ｖ （％） ；を取り、横軸に従来方法
人並びにこの発明の方法Ｂを取ったものである。第６図
から明らかなように、従来方法人の特性（２２）よりこ
の発明の方法Ｂの特性（２３）による絶縁層（１３）の
方が、優れた特性を示すごとがわかる。これはリード部
（４）並びに位相リング（８）の結線部の絶縁層（１３
）の信頼性カイ向上したことによるものである。なお、
第６図においてマは交流短時間絶縁破壊電圧の平均値を
±３０は上限、下限のばらつきの３倍値を示している。FIG. 6 shows the AC short-time dielectric breakdown voltage values of coils insulated by the conventional method and the method of the present invention by the rapid rise method in a 5% Na0l solution. That is, as shown in FIG. 7, an insulated coil (5) is placed in a container (20) containing a 5% Napl solution (19).
When the AC voltage of the AC power supply (21) is rapidly increased by turning on the AC power source (21), the average value of the AC short-time dielectric breakdown voltage of the coil (5) insulated using the conventional method is taken as 100%, and the vertical axis shows the insulation value. The breakdown voltage v (%) is plotted, and the horizontal axis plots the conventional method and method B of the present invention. As is clear from FIG. 6, it can be seen that the insulating layer (13) according to the characteristic (23) of method B of the present invention exhibits better characteristics than the characteristic (22) of the conventional method. This is the insulating layer (13) of the lead part (4) and the connection part of the phase ring (8).
) was due to improved reliability. In addition,
In FIG. 6, the symbol "ma" indicates the average value of the AC short-time dielectric breakdown voltage, and ±30 indicates the value three times the variation of the upper and lower limits.
また、上記実施例では粉体塗装について述べたが、電気
泳動法、チキソトロピック性樹脂番こよる浸漬法で、コ
イルエンド部（２）、ノーズ部（３）、リード部（滲相
互間並びにリード部（４）と位相リング（８）との接続
部の絶縁層（１３）を構成しても、同様の効果が得られ
ることはいうまでもない。In addition, although powder coating was described in the above example, electrophoresis method and immersion method using thixotropic resin coating were used to coat the coil end part (2), nose part (3), lead part (between the bleed areas and between the leads). It goes without saying that the same effect can be obtained by configuring the insulating layer (13) at the connection portion between the portion (4) and the phase ring (8).
以上のようにこの発明によれば、良好な絶縁処理を短時
間におこなえる効果を有する。As described above, according to the present invention, it is possible to perform good insulation treatment in a short time.
第１図は従来方法で絶縁処理かされる回転電機コイルを
示す部分断面平面図、第２図は従来方法で絶縁処理がさ
れた回、転電機コイルの鉄心挿入状態のコイルエンド付
近を示す局部断面図、第３図はこの発明の方法で絶縁処
理がされる回転電機コイルを示す部分断面平面図、第４
図はこの発明の方法で絶縁処理がされた回転電機コイル
の鉄心挿入状態のコイルエンド付近を示す局部断面図、
第５図は従来方法とこの発明の方法とによる絶縁処理作
業時間比率の比較図１第６図は従来方法とこの発明の方
法とによる５％Ｎａｐ／溶液中での絶縁破壊電圧比較図
、第７図は絶縁破壊試験状態を示す電気結線図である。
図において、（１）はスロット部、（２）はコイルエン
ド部、（３）はノーズ部、（４）はリード部、（５）は
コイル、（６）は絶縁層、（７）は鉄心、（８）は位相
リング、（９）はスペーサ、（１０）はプレースリング
、（１１）はスペーサ、（１２）は緊縛材料・（１３）
は絶縁層である。なお各図中同一符号は同一部分を示す
。
代理人 弁理士 葛 野 信 −ｔ！！！笥慶曹
目＞ｉ
−２２７Figure 1 is a partial cross-sectional plan view showing a rotary electric machine coil that has been insulated using a conventional method, and Figure 2 is a partial cross-sectional plan view showing a coil end of a rotating electric machine coil that has been insulated using a conventional method, with the iron core inserted. 3 is a partially sectional plan view showing a rotating electric machine coil subjected to insulation treatment by the method of the present invention; FIG. 4 is a sectional view;
The figure is a local cross-sectional view showing the vicinity of the coil end of a rotating electric machine coil insulated using the method of the present invention, with the iron core inserted;
Figure 5 is a comparison diagram of the insulation processing time ratio between the conventional method and the method of the present invention. Figure 6 is a comparison diagram of dielectric breakdown voltage in 5% Nap/solution between the conventional method and the method of the present invention. FIG. 7 is an electrical wiring diagram showing the dielectric breakdown test state. In the figure, (1) is the slot part, (2) is the coil end part, (3) is the nose part, (4) is the lead part, (5) is the coil, (6) is the insulating layer, and (7) is the iron core. , (8) is a phase ring, (9) is a spacer, (10) is a place ring, (11) is a spacer, (12) is a bonding material, (13)
is an insulating layer. Note that the same reference numerals in each figure indicate the same parts. Agent Patent Attorney Shin Kuzuno -t! ! !笥涥 Cao Me>i-227
Claims (1)
部の一部までマイカテープまたはマイカシートで巻回す
る第１の工程、前記マイカテープまたはマイカシートで
巻回された前記スロット部を固定子鉄心の溝に挿入した
後前記各亀甲形コイル間を結線する第２の工程、固定子
全体を絶縁ワニスで真空加圧含浸した後加熱硬化させる
第３の工程、前記コイルエンド部をスペーサおよびプレ
ースリングで保持する第４の工程、および前記マイカテ
ープまたはマイカシートの端部を含み前記固定子鉄心か
らの突出部に熱硬化性樹脂の絶縁層を形成する第５の工
程からなることを特徴とする回転電機の全含浸コイル絶
縁方法。 ２、絶縁層は、粉体塗装によって形成される特許請求の
範囲第１項記載の回転電機の全含浸コイル絶縁方法。 ３、絶縁層は、電気泳動塗装によって形成される特許請
求の範囲第１項記載の回転電機の全含浸コイル絶縁方法
◇ ４、絶縁層は、チキントロピック性樹脂による浸せき塗
装によって形成される特許請求の範囲第１項記載の回転
電機の全含浸コイル絶縁方法＠[Claims] 1. A first step of winding a part of the slot portion and coil end portion of the medium-sized fill with mica tape or mica sheet, and the slot wound with the mica tape or mica sheet. a second step of connecting the tortoise-shell shaped coils after inserting the parts into the grooves of the stator core; a third step of impregnating the entire stator with insulating varnish under vacuum pressure and then curing it by heating; a fourth step of holding the mica tape or mica sheet with a spacer and a place ring, and a fifth step of forming an insulating layer of thermosetting resin on the protrusion from the stator core, including the end of the mica tape or mica sheet. A fully impregnated coil insulation method for a rotating electrical machine, characterized by the following. 2. The fully impregnated coil insulation method for a rotating electric machine according to claim 1, wherein the insulating layer is formed by powder coating. 3. The insulating layer is formed by electrophoretic coating. The fully impregnated coil insulating method for a rotating electric machine according to claim 1. 4. The insulating layer is formed by dip coating with chicken tropic resin. Scope: Fully impregnated coil insulation method for rotating electric machines described in item 1 @
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3611483A JPS59162745A (en) | 1983-03-03 | 1983-03-03 | Insulation of totally impregnated coil of rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3611483A JPS59162745A (en) | 1983-03-03 | 1983-03-03 | Insulation of totally impregnated coil of rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59162745A true JPS59162745A (en) | 1984-09-13 |
Family
ID=12460747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3611483A Pending JPS59162745A (en) | 1983-03-03 | 1983-03-03 | Insulation of totally impregnated coil of rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59162745A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127406A (en) * | 1974-08-30 | 1976-03-08 | Mitsubishi Electric Corp | Kaitendenkinokoiruzetsuenhoho |
-
1983
- 1983-03-03 JP JP3611483A patent/JPS59162745A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127406A (en) * | 1974-08-30 | 1976-03-08 | Mitsubishi Electric Corp | Kaitendenkinokoiruzetsuenhoho |
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