JPS63206145A - Dc motor - Google Patents
Dc motorInfo
- Publication number
- JPS63206145A JPS63206145A JP3798887A JP3798887A JPS63206145A JP S63206145 A JPS63206145 A JP S63206145A JP 3798887 A JP3798887 A JP 3798887A JP 3798887 A JP3798887 A JP 3798887A JP S63206145 A JPS63206145 A JP S63206145A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- auxiliary
- auxiliary winding
- armature
- rectification
- 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
- 238000004804 winding Methods 0.000 claims abstract description 91
- 230000004907 flux Effects 0.000 abstract description 14
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Dc Machiner (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
・ 本発明は整流特性補償に係り、特に、補極巻線の
取付スペースに制約を受けないよう整流特性改善用の補
助巻線を好適な位置に配置した直流電動機に関する。[Detailed Description of the Invention] [Field of Industrial Application] - The present invention relates to compensation of rectification characteristics, and in particular, to a suitable method for auxiliary windings for improving rectification characteristics so as not to be restricted by the installation space of the commutator windings. This invention relates to a DC motor located at a certain location.
従来、大容量で広範囲の界磁制御付直流電動機は、整流
特性改善用の補助巻線を補極鉄心に取付ける場合が多い
。Conventionally, in large-capacity, wide-range field-controlled DC motors, an auxiliary winding for improving rectification characteristics is often attached to the commutating pole iron core.
第３図は補助巻線を補極鉄心に取付けた従来の直流電動
機の一例を示した要部展開図である。１は環状をなす継
鉄、２は主極鉄心で主極者ｍ３及び先端のスロットに整
流補償巻線４を持ち、補極鉄心５には補極巻線６と共に
補助巻線７が巻かれてあり、回転する電機子鉄心８に電
機子巻線９がある。主極巻線３は電機子巻線９に主磁束
を与え。FIG. 3 is an exploded view of the main parts of an example of a conventional DC motor in which an auxiliary winding is attached to a commutating pole core. 1 is a ring-shaped yoke; 2 is a main pole core having a main pole m3 and a rectifying compensation winding 4 in a slot at the tip; a commutator core 5 has a commutator winding 6 and an auxiliary winding 7 wound thereon; The rotating armature core 8 has an armature winding 9. The main pole winding 3 provides main magnetic flux to the armature winding 9.
整流補償巻線４と補極巻線６は電機子巻線９に流れる電
流によって生じる磁束を打ち消す整流起電力を発生させ
るための磁束を与える。また、補極鉄心５の継鉄１側に
取付けられた補助巻線１０は。The rectification compensation winding 4 and the commutator winding 6 provide magnetic flux for generating a rectification electromotive force that cancels the magnetic flux generated by the current flowing through the armature winding 9. Moreover, the auxiliary winding 10 attached to the yoke 1 side of the commutating pole iron core 5 is as follows.
補極巻線６と差動的に巻装されており、第５図に示すよ
うに、無火花帯が回転速度の増加に従って過整流側に移
動する（補極及び整流補償巻線の磁束が過剰である）の
で、その起磁力を調整して負荷軸を無火花帯中心の〇−
Ｐ線上に移動させる働きをする。It is wound differentially with the commutating pole winding 6, and as shown in Fig. 5, the non-sparking zone moves to the over-rectifying side as the rotation speed increases (the magnetic flux of the commutating pole and commutating compensation winding (excessive), adjust the magnetomotive force and move the load shaft to the center of the non-sparking zone.
It works to move it onto the P line.
第４図は補助巻線の電流を回転速度と電機子電流に応じ
て制御し、無火花帯移動現象を補償する装置のブロック
図であり、１１は電機子、１２は回転速度検出器、１３
は掛算器、１４はゲート信号発生器、１５は外部直流電
源、１６はパワートランジスタ等の半導体スイッチング
素子、１７は電流検出器で構成される電流制御回路であ
る。この装置は、整流補償巻線４及び補極巻線６に電機
子電流Ｉａを流す一方、外部直流電源１５から補助巻線
７に供給する電流ｉを次のように制御している。つまり
、電流検出器１７と回転速度検出器１２の出力を掛算器
１３に入力し、その結果をゲート信号発生器１４に入力
し、これによって得たゲート信号により電流制御回路の
スイッチング周波数及び通流率等を制御し、補助巻線７
に流れる電流を制御する。これにより、補助巻線７の電
流ｉが回転速度及び電機子電流に応じて変化するので、
補極起磁力が変化し、負荷軸は第５図に示したように、
無火花帯中心のＯ−Ｐ線上に移動する。FIG. 4 is a block diagram of a device that controls the current of the auxiliary winding according to the rotational speed and armature current to compensate for the no-spark zone movement phenomenon, in which 11 is the armature, 12 is the rotational speed detector, and 13
14 is a multiplier, 14 is a gate signal generator, 15 is an external DC power supply, 16 is a semiconductor switching element such as a power transistor, and 17 is a current control circuit composed of a current detector. In this device, the armature current Ia flows through the rectification compensation winding 4 and the commutator winding 6, while the current i supplied from the external DC power supply 15 to the auxiliary winding 7 is controlled as follows. That is, the outputs of the current detector 17 and rotational speed detector 12 are input to the multiplier 13, the result is input to the gate signal generator 14, and the gate signal obtained thereby is used to adjust the switching frequency of the current control circuit and the current flow. Auxiliary winding 7
control the current flowing to the As a result, the current i in the auxiliary winding 7 changes depending on the rotational speed and armature current, so
The interpolation magnetomotive force changes, and the load axis changes as shown in Figure 5.
Move to the O-P line at the center of the no-spark zone.
この結果、直流電動機は無火花整流で運転できる。As a result, the DC motor can be operated with sparkless commutation.
なお、この種の装置には、例えば、実開昭５０＝１００
６１５号公報が挙げられる。In addition, for this type of device, for example,
Publication No. 615 is mentioned.
上記従来技術は、補助巻線を補極鉄心に取付けていたた
め、同鉄心上の補極巻線の取付スペースが狭くなるので
、補助巻線の取付スペース分だけ継鉄を径方向に大きく
したり、もしくは、継鉄を大きくできない場合は補極巻
線の導体サイズを小さくするので銅損が増大するという
欠点があった。In the above conventional technology, since the auxiliary winding is attached to the commutator core, the space for installing the commutator winding on the core becomes narrow, so the yoke is made radially larger by the space for attaching the auxiliary winding. Alternatively, if the yoke cannot be made larger, the conductor size of the interpolation winding must be made smaller, which has the drawback of increasing copper loss.
本発明の目的は、補助巻線を効果的な位置に配置して、
補助巻線挿入によって電動機寸法が大きくなるのを最小
限におさえ、かつ、補極巻線の取付スペースを補助巻線
がない場合と同等にとれるようにした直流電動機を提供
することにある。The object of the present invention is to arrange the auxiliary winding at an effective position,
To provide a DC motor which can minimize the increase in motor size due to the insertion of an auxiliary winding, and can take the same space for installing a commutator winding as without the auxiliary winding.
上記目的は、補極巻線と整流補償巻線と補助巻線より成
る整流特性改善用巻線構成で、補助巻線を整流補償巻線
とを同一のスロット内に収めることにより達成される。The above object is achieved by a rectification characteristic improving winding configuration consisting of a commutator winding, a rectification compensation winding, and an auxiliary winding, and by accommodating the auxiliary winding and the rectification compensation winding in the same slot.
電機子電流Ｉａによる電機子反作用磁束の打消しは、補
極巻線により生じる磁束と、整流補償巻線により生じる
磁束の合計でまかなっており、かつ、前者と後者の磁束
の通路は同一である。従って、回転速度による無火花帯
移動現象を補償する補助巻線の磁束を、整流補償巻線の
位置で与えても補極巻線の位置で与えることと同様の効
果を生じる。Cancellation of the armature reaction magnetic flux by the armature current Ia is covered by the sum of the magnetic flux generated by the interpolation winding and the magnetic flux generated by the rectification compensation winding, and the paths of the former and latter magnetic flux are the same. . Therefore, even if the magnetic flux of the auxiliary winding that compensates for the non-spark band movement phenomenon due to the rotational speed is applied at the position of the rectification compensation winding, the same effect as that of applying it at the position of the commutator winding is produced.
以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は補助巻線１０が整流補償巻線４と同一スロット
内の上部に収められていることを示し、第２図はそのブ
ロック図である。補助巻線１０は整流補償巻線４と差動
的に巻装されており、第２図のように、第４図と同じ電
流制御回路により、補助巻線１０に流れる電流ｉｃを制
御し、第５図の無火花帯移動現象を補償する。FIG. 1 shows that the auxiliary winding 10 is housed in the same slot as the rectifying compensation winding 4, and FIG. 2 is a block diagram thereof. The auxiliary winding 10 is differentially wound with the rectification compensation winding 4, and as shown in FIG. 2, the current IC flowing through the auxiliary winding 10 is controlled by the same current control circuit as in FIG. The no-spark zone movement phenomenon shown in FIG. 5 is compensated for.
このように補助巻線を整流補償巻線４の側に取付ければ
補極巻線の取付はスペースに制約を与えない。一方、整
流補償巻線４のスロットは補助巻８１０の分だけ径方向
に大きくしなければならないが、補助巻線が補極鉄心５
にある場合と比較して、補助巻線１ｏを周方向に分散し
て巻装されること及び回転体のファンアクションによる
冷却効果が大きい位置であるため補助巻線１０の導体サ
イズを小さくできることから、径方向の大きさを少なく
押えることができる。また、補助巻線１゜を電機子に近
い場所に配置したことにより、電機子の外径部ギャップ
を通らない漏れ磁束を軽減でき、その全補助巻線による
起磁力（巻数×電流）を少なくできる。すなわち、第６
図のように、補助巻線７を継鉄上の側に巻装すると補極
先端ギャップを通過しない漏れ磁束φ、１が増えて、そ
の全補助巻線による起磁力（巻数Ｘ電流）を増やすこと
になるし、第７図のように、補助巻線７を電機子鉄心１
の側に巻装すると、補極巻線の漏れ磁束φ、２が増える
ので、補助巻線を整流補償巻線４部分に巻装すれば、こ
れらの欠点を解消できる。If the auxiliary winding is attached to the side of the rectification compensation winding 4 in this way, the space for attaching the commutator winding will not be restricted. On the other hand, the slot of the rectification compensation winding 4 must be enlarged in the radial direction by the amount of the auxiliary winding 810.
The conductor size of the auxiliary winding 10 can be made smaller because the auxiliary winding 1o is wound in a distributed manner in the circumferential direction and the position has a greater cooling effect due to the fan action of the rotating body. , the radial size can be kept small. In addition, by placing the auxiliary winding 1° close to the armature, leakage magnetic flux that does not pass through the armature outer diameter gap can be reduced, and the magnetomotive force (number of turns x current) due to all the auxiliary windings can be reduced. can. That is, the sixth
As shown in the figure, when the auxiliary winding 7 is wound on the side above the yoke, the leakage magnetic flux φ,1 that does not pass through the interpole tip gap increases, increasing the magnetomotive force (number of turns x current) due to all the auxiliary windings. Therefore, as shown in Fig. 7, the auxiliary winding 7 is connected to the armature core 1.
If the auxiliary winding is wound on the side of the rectifier compensation winding 4, the leakage magnetic flux φ,2 of the commutator winding will increase, so these drawbacks can be overcome by winding the auxiliary winding around the rectification compensation winding 4.
本発明によれば、補助巻線を整流補償巻線部分に巻装す
れば、補極巻線部分に巻装した場合より電動機寸法を小
さくすることができる。According to the present invention, by winding the auxiliary winding around the rectification compensation winding, the motor size can be made smaller than when winding the auxiliary winding around the commutator winding.
第１図は本発明の一実施例の直流電動機の要部展開図、
第２図は第１図の電気回路と電流制御回路のブロック図
、第３図は従来の直流電動機の要部展開図、第４図は第
３図の電気回路と電流制御回路のブロック図、第５図は
無火花帯移動現象の説明図、第６図及第７図は漏れ磁束
の様子を示す説明図である。
１・・・継鉄、２・・・主極鉄心、４・・・整流補償巻
線、５・・・補極鉄心、６・・補極巻線、７・・・補助
巻線、１０ｇ ノ ａ
第 ２凹
第 ３ 囚
第 ４１！］
第５″口
（＋）
猶６ 図 集７凹FIG. 1 is an exploded view of the main parts of a DC motor according to an embodiment of the present invention.
Figure 2 is a block diagram of the electric circuit and current control circuit in Figure 1, Figure 3 is an exploded view of the main parts of a conventional DC motor, Figure 4 is a block diagram of the electric circuit and current control circuit in Figure 3, FIG. 5 is an explanatory diagram of the no-spark zone movement phenomenon, and FIGS. 6 and 7 are explanatory diagrams showing the state of leakage magnetic flux. DESCRIPTION OF SYMBOLS 1...Yoke, 2...Main pole iron core, 4...Rectification compensation winding, 5...Commuting pole iron core, 6...Commuting pole winding, 7...Auxiliary winding, 10g a 2nd concave 3rd prisoner 41! ] 5th opening (+) 6 Figure collection 7 concave
Claims (1)
整流特性改善用巻線構成において 前記補助巻線を前記整流補償巻線と同一のスロット内に
収めたことを特徴とする直流電動機。[Claims] 1. In a rectification characteristic improving winding configuration consisting of a commutator winding, a rectification compensation winding, and an auxiliary winding, the auxiliary winding is placed in the same slot as the rectification compensation winding. A DC motor characterized by the fact that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3798887A JPS63206145A (en) | 1987-02-23 | 1987-02-23 | Dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3798887A JPS63206145A (en) | 1987-02-23 | 1987-02-23 | Dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63206145A true JPS63206145A (en) | 1988-08-25 |
Family
ID=12512948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3798887A Pending JPS63206145A (en) | 1987-02-23 | 1987-02-23 | Dc motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63206145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029015A2 (en) * | 1997-11-28 | 1999-06-10 | Asea Brown Boveri Ab | Method and device for controlling the magnetic flux with an auxiliary winding in a hv ac machine |
-
1987
- 1987-02-23 JP JP3798887A patent/JPS63206145A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029015A2 (en) * | 1997-11-28 | 1999-06-10 | Asea Brown Boveri Ab | Method and device for controlling the magnetic flux with an auxiliary winding in a hv ac machine |
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