JPS6369446A - Commutator - Google Patents
CommutatorInfo
- Publication number
- JPS6369446A JPS6369446A JP21240786A JP21240786A JPS6369446A JP S6369446 A JPS6369446 A JP S6369446A JP 21240786 A JP21240786 A JP 21240786A JP 21240786 A JP21240786 A JP 21240786A JP S6369446 A JPS6369446 A JP S6369446A
- Authority
- JP
- Japan
- Prior art keywords
- resin layer
- commutator
- armature
- bushing
- heat
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims abstract description 46
- 229920005989 resin Polymers 0.000 claims abstract description 46
- 239000011810 insulating material Substances 0.000 claims abstract description 13
- 239000010445 mica Substances 0.000 claims abstract description 8
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 8
- 210000003298 dental enamel Anatomy 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 238000003763 carbonization Methods 0.000 abstract description 6
- -1 e.g. Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 17
- 206010014357 Electric shock Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は整流子の２重絶縁に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to double insulation of commutators.
（従来の技術）
従来、整流子は刷子を圧接させるスリット加工前の整流
子セグメントとアーマチュアの軸に嵌込まれる金属製ブ
ツシュとを樹脂層を介して同心上に一体成形し、スリッ
ト加工した整流子の各整流子しグメントにはアーマチュ
アのコイルがスポット溶接等によって接続されているが
、このようにして形成されたアーマチュアがモータに組
込まれて使用されると、（１）モータの振動等によって
アーマチュアコイルの特に整流子セグメントとの接続部
分が断線する場合があり、その場合において断線により
発生ずるスパーク或は断線したコイルが整流子セグメン
トに触れたり離れたりすることにより発生するスパーク
によって整流子の樹脂層表面が炭化し易く、しかも、一
旦炭化すると炭化層は樹脂内部へ進行するため、その部
分の絶縁性が低下し活電部の整流子セグメントとアース
部のアーマチュア軸間に漏洩電流が流れて感電′Ｊ１故
を起すおそれがある。(Prior art) Conventionally, a commutator is a commutator segment in which a commutator segment before slits for press-contacting brushes and a metal bushing fitted into the shaft of an armature are integrally molded concentrically via a resin layer, and then slits are processed into the commutator segment. The coils of the armature are connected to each commutator component of the child by spot welding, etc., but when the armature formed in this way is incorporated into a motor and used, (1) In some cases, the armature coil, especially the connection part with the commutator segment, may be disconnected, and in that case, the spark generated by the disconnection or the spark generated when the disconnected coil touches or separates from the commutator segment may cause the commutator to break. The surface of the resin layer is easily carbonized, and once carbonized, the carbonized layer progresses into the resin, reducing the insulation of that part and causing leakage current to flow between the commutator segment in the live part and the armature shaft in the ground part. Otherwise, there is a risk of electric shock 'J1.
又、（２）樹脂モールドされた整流子の樹脂層は吸湿し
易く、樹脂層が吸湿することによる絶縁低下によって漏
電事故、例えば感電の他、漏電による回路誤動作等の事
故を発生させるおそれがあると言う欠点があった。In addition, (2) the resin layer of the resin-molded commutator easily absorbs moisture, and insulation degradation due to moisture absorption in the resin layer may cause accidents such as electric shock, circuit malfunction, etc. due to electric leakage. There was a drawback.
（発明が解決しようとする問題点）
本発明は整流子の生産性を低下させることなく樹脂層の
炭化或は吸湿による漏゛市事故の発生を有効に防止する
ことにある。(Problems to be Solved by the Invention) The object of the present invention is to effectively prevent the occurrence of leakage accidents due to carbonization or moisture absorption of the resin layer without reducing the productivity of the commutator.
（問題を解決するための手段）
本発明は刷子を圧接させる整流子セグメントとアーマチ
ュアの軸に嵌込まれるブツシュとを樹脂層を介して同心
上に一体成形するに際して、前記整流子セグメン］−と
前記アーマチュアの軸間を前記ブツシュ部分において前
記樹脂層との間で２重絶縁層を形成するように構成した
整流子にある。(Means for Solving the Problems) The present invention provides a method for integrally molding a commutator segment with which a brush is brought into pressure contact and a bushing fitted into the shaft of an armature concentrically via a resin layer. The commutator is configured to form a double insulation layer between the shafts of the armature and the resin layer at the bushing portion.
（作用）
このように構成された整流子において、モータの振動等
によってアーマデユアコイルの整流子セグメントとの接
続部分が断線してスパークが発生し！こり、或は、断線
したコイルが整流子セグメントに触れたり離れたりする
ことによってスパークが発生して整流子の樹脂層が炭化
し、或は、樹脂層が吸湿して樹脂層の絶縁性が低下して
も、従来だと、活電部の整流子セグメントとアース部の
アーマチュア軸間に漏洩電流が流れて感電等の漏電事故
が発生したのに対して、本考案の場合、２重絶縁どして
ブツシュが耐熱絶縁材料で形成されているか、或は、ブ
ツシュが金属製のときには、２重絶縁層として、ブツシ
ュと樹脂層との間にブツシュに耐熱性絶縁材料をコーテ
ィングした耐熱性絶縁層が形成されているため、この耐
熱絶縁材料製ブツシュ、或は、コーティング部分で活電
部の整流子ヒグメントとアース部のアーマチュア軸間の
絶縁低下が防止されて、アーマチュアコイルの整流子セ
グメントとの接続部分での断線発生による樹脂層の炭化
、或は、吸湿による樹脂層の絶縁性低ドにも拘らず、活
゛電部の整流子セグメントとアース部のアーマデユア軸
間の漏電事故は確実に防止される。(Function) In a commutator configured in this manner, the connecting portion of the armadure coil to the commutator segment may be disconnected due to vibrations of the motor, and sparks may occur! Sparks are generated when a broken coil touches or separates from a commutator segment, and the resin layer of the commutator carbonizes, or the resin layer absorbs moisture and the insulation properties of the resin layer decrease. However, in the conventional case, a leakage current flows between the commutator segment in the live part and the armature shaft in the ground part, causing leakage accidents such as electric shock, but in the case of the present invention, double insulation If the bushing is made of a heat-resistant insulating material, or if the bushing is made of metal, a heat-resistant insulating layer coated with a heat-resistant insulating material is provided between the bushing and the resin layer as a double insulating layer. is formed, this bushing made of heat-resistant insulating material or the coated part prevents a decrease in insulation between the commutator higment of the live part and the armature shaft of the ground part, and improves the relationship between the commutator segment of the armature coil and the armature shaft. Despite carbonization of the resin layer due to disconnection at the connection part, or poor insulation of the resin layer due to moisture absorption, leakage accidents between the commutator segment of the live part and the armadure shaft of the ground part are guaranteed. Prevented.
（実施例）
次に、本発明の第１実施例の構成を第１図によって説明
する。(Example) Next, the configuration of a first example of the present invention will be described with reference to FIG.
刷子１を圧接させる整流子セグメント２どアーマチュア
の軸３に嵌込まれるブツシュ４とを樹脂層５を介して同
心上に一体成形するに際して、前記整流子セグメント２
と前記アーマチュアの軸３間において２重絶縁層を形成
するため、ブッシュ４自
の例えばセラミック或雲母で形成する。When the commutator segment 2 to which the brush 1 is brought into pressure contact and the bush 4 fitted into the shaft 3 of the armature are integrally molded concentrically via the resin layer 5, the commutator segment 2 is
In order to form a double insulation layer between the shaft 3 and the shaft 3 of the armature, the bush 4 is made of, for example, ceramic or mica.
次に、本実施例の作用について説明する。Next, the operation of this embodiment will be explained.
このように構成された＠流子６において、モータの振動
等によってアーマチュアコイル７が整流子セグメント２
との接続部分で断線してスパークが発生したり、或は、
断線したコイル７が整流子セグメン１〜２に触れたり離
れたりすることによってスパークが発生して整流子６の
樹脂層５が炭化し、或は、樹脂層５が吸湿して樹脂層５
の絶縁性が低下しても、従来だと、活電部の整流子セグ
メントとアース部のアーマチュア軸間に漏洩電流が流れ
て感電等の漏電事故が発生したのに対して、本実施例の
整流子６の場合、２重絶縁としてブツシュ４が耐熱絶縁
材料の例えばセラミック或は雲母で形成されているため
、この耐熱絶縁材料製ブツシュ４で活電部の整流子セグ
メント２とアース部のアーマチュア軸３間の絶縁低下が
防止されて、アーマチュアコイル７の＊ｉ子セグメント
２との接続部分での断線発生による樹脂層５の炭化、或
は、吸湿によって樹脂層５の絶縁性が低下しても、活電
部の整流子セグメント２とアース部のアーマ・チュア軸
３間の漏電事故は確実に防止される。In the @flow element 6 configured in this way, the armature coil 7 is damaged by the commutator segment 2 due to motor vibration, etc.
The connection may break and sparks may occur, or
When the disconnected coil 7 touches or separates from the commutator segments 1 and 2, sparks are generated and the resin layer 5 of the commutator 6 is carbonized, or the resin layer 5 absorbs moisture and the resin layer 5
In the conventional case, even if the insulation properties of the In the case of the commutator 6, since the bushing 4 is made of a heat-resistant insulating material such as ceramic or mica for double insulation, the bushing 4 made of heat-resistant insulating material separates the commutator segment 2 in the live part and the armature in the ground part. Deterioration of the insulation between the shafts 3 is prevented, and the insulation properties of the resin layer 5 are reduced due to carbonization of the resin layer 5 due to disconnection at the connection part with the *i child segment 2 of the armature coil 7, or due to moisture absorption. Also, leakage accidents between the commutator segment 2 of the live part and the armature shaft 3 of the ground part are reliably prevented.
次に、本発明の第２実施例の構成を第２図によって説明
する。Next, the configuration of a second embodiment of the present invention will be explained with reference to FIG.
刷子１を圧接させる整流子セグメント８とアーマチュア
の軸３に嵌込まれる金属製ブツシュ９とを樹脂層１０を
介して同心上に一体成形するに際して、前記整流子セグ
メント８と前記アーマチュアの軸３間において２重絶縁
層を形成するため、金属製ブツシュ９の外周には樹脂層
１０の樹脂と異なる耐熱性絶縁材料の例えばホーローを
コーティングしてのガラス層、或は、雲母をコーディン
グしての雲母層の耐熱性絶縁層１１を形成しである。When the commutator segment 8 that presses the brush 1 and the metal bushing 9 that is fitted into the armature shaft 3 are integrally molded concentrically via the resin layer 10, a gap between the commutator segment 8 and the armature shaft 3 is formed. In order to form a double insulating layer, the outer periphery of the metal bushing 9 is coated with a heat-resistant insulating material different from the resin of the resin layer 10, such as a glass layer coated with enamel, or a mica coated with mica. A heat-resistant insulating layer 11 is then formed.
次に、本実施例の作用について説明する。Next, the operation of this embodiment will be explained.
このように構成された整流子１２において、モータの振
動等によってアーマチュアコイル７が整流子セグメント
８との接続部分で断線してスパークが発生したり、或は
、断線したコイル７が整流子セグメント８に触れたり離
れたりすることによってスパークが発生して整流子１２
の樹脂層１０が炭化し、或は、樹脂層１０が吸湿して樹
脂層１０の絶縁性が低下しても、証来たと、活電部の整
流子セグメントとアース部のアーマデユア軸間に漏洩電
流が流れて感電等のＭ電事故が発生したのに対して、本
実施例の整流子１２の場合、２重絶縁として金属製ブツ
シュつと樹脂層１０との間に耐熱性絶縁材料のボー〇−
或は雲母をコーティングした耐熱性絶縁層１１が形成さ
れているため、この整流子１２で活電部の整流子セグメ
ント８とアース部のアーマデユア軸間の絶縁低下が防止
されて、アーマチュアコイル７の整流子セグメント８と
の接続部分での断線発生による樹脂層１０の炭化、或は
、吸湿によって樹脂層１０の絶縁性が低下しても、活電
部の整流子セグメント８とアース部のアーマチュア軸３
間の漏電事故は確実に防止される。In the commutator 12 configured in this way, if the armature coil 7 is disconnected at the connection part with the commutator segment 8 due to vibrations of the motor, sparks are generated, or the disconnected coil 7 is connected to the commutator segment 8. A spark is generated by touching or leaving the commutator 12.
Even if the resin layer 10 carbonizes or the resin layer 10 absorbs moisture and the insulation properties of the resin layer 10 deteriorate, leakage will occur between the commutator segment of the live part and the armadure shaft of the ground part. In contrast, in the case of the commutator 12 of this embodiment, a ball of heat-resistant insulating material is used between the metal bushings and the resin layer 10 as double insulation. −
Alternatively, since the heat-resistant insulating layer 11 coated with mica is formed, this commutator 12 prevents the insulation from decreasing between the commutator segment 8 in the live part and the armature shaft in the ground part, and the armature coil 7 Even if the insulation of the resin layer 10 deteriorates due to carbonization of the resin layer 10 due to disconnection at the connection part with the commutator segment 8 or moisture absorption, the commutator segment 8 in the live part and the armature shaft in the ground part 3
Electrical leakage accidents between the two are reliably prevented.
（発明の効果）
本発明は刷子を圧接させる整流子セグメントとアーマチ
ュアの軸に嵌込まれるブツシュとを樹脂層を介して同心
上に一体成形するに際して、前記整流子セグメントと前
記アーマチュアの軸間を前記ブツシュ部分において前記
樹脂層との間で２重せることなく樹脂層の炭化或は吸湿
による漏電事故の発生を有効に防止することができる効
果がある。(Effects of the Invention) When the present invention concentrically molds the commutator segment that presses the brush and the bushing that is fitted into the shaft of the armature through a resin layer, the distance between the commutator segment and the shaft of the armature is There is an effect that occurrence of an electric leakage accident due to carbonization or moisture absorption of the resin layer can be effectively prevented without overlapping the bushing portion with the resin layer.
第１図は本発明の第１実施例の破断側面図、第２図は本
発明の第２実施例の破断側面図である。
１・・・刷子 ２．８・・・整流子セグメント３
・・・軸 ４・・・耐熱絶縁材料製ブツシュ５
．１０・・・樹脂層 ６．１２・・・整流子７・・・
コイル ９・・・ブツシュ１１・・・耐熱性絶
縁層FIG. 1 is a cutaway side view of a first embodiment of the invention, and FIG. 2 is a cutaway side view of a second embodiment of the invention. 1...Brush 2.8...Commutator segment 3
... Shaft 4 ... Bushing made of heat-resistant insulating material 5
．． 10...Resin layer 6.12...Commutator 7...
Coil 9... Bushing 11... Heat resistant insulating layer
Claims (7)
アの軸に嵌込まれるブッシュとを樹脂層を介して同心上
に一体成形するに際して、前記整流子セグメントと前記
アーマチュアの軸間を前記ブッシュ部分において前記樹
脂層との間で２重絶縁層を形成することを特徴とする整
流子。(1) When integrally molding the commutator segment that presses the brush and the bush that is fitted onto the shaft of the armature through a resin layer, the commutator segment and the shaft of the armature are connected at the bushing portion. A commutator characterized by forming a double insulating layer with a resin layer.
と異なる耐熱性絶縁材料で形成することを特徴とする特
許請求の範囲、第１項に記載の整流子。(2) The commutator according to claim 1, wherein the bush itself is formed of a heat-resistant insulating material different from the resin of the resin layer as the double insulating layer.
料のセラミックで形成することを特徴とする特許請求の
範囲、第２項に記載の整流子。(3) The commutator according to claim 2, wherein the bush itself is made of ceramic, which is a heat-resistant insulating material, as the double insulating layer.
料の雲母で形成することを特徴とする特許請求の範囲、
第２項に記載の整流子。(4) Claims characterized in that the bush itself is formed of mica, which is a heat-resistant insulating material, as a double insulating layer;
Commutator according to paragraph 2.
ッシュと樹脂層との間にブッシュに耐熱性絶縁材料をコ
ーティングした耐熱性絶縁層を形成することを特徴とす
る特許請求の範囲、第１項に記載の整流子。(5) Claims characterized in that when the bushing is made of metal, a heat-resistant insulating layer is formed between the bushing and the resin layer by coating the bushing with a heat-resistant insulating material, as the double insulating layer. Commutator according to paragraph 1.
ッシュと樹脂層との間にブッシュにホーローをコーティ
ングした耐熱性絶縁層を形成することを特徴とする特許
請求の範囲、第５項に記載の整流子。(6) Claim 5, characterized in that when the bushing is made of metal, a heat-resistant insulating layer coated with enamel is formed between the bushing and the resin layer as a double insulating layer. Commutator described in.
ッシュと樹脂層との間にブッシュに雲母をコーティング
した耐熱性絶縁層を形成することを特徴とする特許請求
の範囲、第５項に記載の整流子。(7) Claim 5, characterized in that when the bushing is made of metal, a heat-resistant insulating layer coated with mica is formed between the bushing and the resin layer as a double insulating layer. Commutator described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61212407A JP2543350B2 (en) | 1986-09-09 | 1986-09-09 | Commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61212407A JP2543350B2 (en) | 1986-09-09 | 1986-09-09 | Commutator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6369446A true JPS6369446A (en) | 1988-03-29 |
| JP2543350B2 JP2543350B2 (en) | 1996-10-16 |
Family
ID=16622074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61212407A Expired - Fee Related JP2543350B2 (en) | 1986-09-09 | 1986-09-09 | Commutator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543350B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202162U (en) * | 1987-06-12 | 1988-12-27 | ||
| US5003212A (en) * | 1988-10-07 | 1991-03-26 | Asmo Co., Ltd. | Molded commutator with a layer of insulation on the base |
| JP2007503192A (en) * | 2003-08-21 | 2007-02-15 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Commutator for electrical machine |
| EP2308155A2 (en) * | 2008-07-25 | 2011-04-13 | Robert Bosch GmbH | Commutator for an electrical machine and system |
| JP2013055880A (en) * | 2011-09-02 | 2013-03-21 | Johnson Electric Sa | Electric motor |
| CN103490261A (en) * | 2013-09-29 | 2014-01-01 | 湖州展瑞机电科技有限公司 | Super-strength steering gear |
| WO2022126557A1 (en) * | 2020-12-17 | 2022-06-23 | 苏州溪能环保科技有限公司 | Hook type commutator having mica ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124403U (en) * | 1975-04-05 | 1976-10-08 | ||
| JPS53104301U (en) * | 1977-01-27 | 1978-08-22 | ||
| JPS5678356A (en) * | 1980-11-10 | 1981-06-27 | Meidensha Electric Mfg Co Ltd | Manufacture of commutator |
| JPS5839246A (en) * | 1981-08-19 | 1983-03-07 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Slip ring for electric machine |
| JPS59132751A (en) * | 1983-01-17 | 1984-07-30 | Nippon Denso Co Ltd | Manufacture of commutator |
-
1986
- 1986-09-09 JP JP61212407A patent/JP2543350B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124403U (en) * | 1975-04-05 | 1976-10-08 | ||
| JPS53104301U (en) * | 1977-01-27 | 1978-08-22 | ||
| JPS5678356A (en) * | 1980-11-10 | 1981-06-27 | Meidensha Electric Mfg Co Ltd | Manufacture of commutator |
| JPS5839246A (en) * | 1981-08-19 | 1983-03-07 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Slip ring for electric machine |
| JPS59132751A (en) * | 1983-01-17 | 1984-07-30 | Nippon Denso Co Ltd | Manufacture of commutator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202162U (en) * | 1987-06-12 | 1988-12-27 | ||
| US5003212A (en) * | 1988-10-07 | 1991-03-26 | Asmo Co., Ltd. | Molded commutator with a layer of insulation on the base |
| JP2007503192A (en) * | 2003-08-21 | 2007-02-15 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Commutator for electrical machine |
| JP4733032B2 (en) * | 2003-08-21 | 2011-07-27 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Commutator for electrical machine |
| EP2308155A2 (en) * | 2008-07-25 | 2011-04-13 | Robert Bosch GmbH | Commutator for an electrical machine and system |
| JP2013055880A (en) * | 2011-09-02 | 2013-03-21 | Johnson Electric Sa | Electric motor |
| CN103490261A (en) * | 2013-09-29 | 2014-01-01 | 湖州展瑞机电科技有限公司 | Super-strength steering gear |
| WO2022126557A1 (en) * | 2020-12-17 | 2022-06-23 | 苏州溪能环保科技有限公司 | Hook type commutator having mica ring |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2543350B2 (en) | 1996-10-16 |
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| LAPS | Cancellation because of no payment of annual fees |