JPS626858Y2 - - Google Patents
Info
- Publication number
- JPS626858Y2 JPS626858Y2 JP11689680U JP11689680U JPS626858Y2 JP S626858 Y2 JPS626858 Y2 JP S626858Y2 JP 11689680 U JP11689680 U JP 11689680U JP 11689680 U JP11689680 U JP 11689680U JP S626858 Y2 JPS626858 Y2 JP S626858Y2
- Authority
- JP
- Japan
- Prior art keywords
- armature
- core
- coil
- outer periphery
- armature core
- 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 18
- 238000000034 method Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Dc Machiner (AREA)
Description
【考案の詳細な説明】
本案は直流機の電機子に係り、特に直流電動機
の電機子に関する。[Detailed Description of the Invention] The present invention relates to an armature for a DC machine, and particularly to an armature for a DC motor.
従来の直流機の電機子は通常、電機子鉄心に多
数の直線状のスロツトを設け、これらスロツトに
それぞれ上および下コイルからなる電機子巻線を
巻装している。上コイルおよび下コイルは、１ス
ロツト中に１〜５本程度挿入され、それぞれ異な
る整流子片に接続される。しかし、同一スロツト
内に複数本のコイル辺が入つている場合、各整流
コイルでインダクタンスの値が異なる。このた
め、各コイルの実効インダクタンスを均一にする
目的で回転子鉄心のスロツトを軸方向に区分し、
区分したそれぞれの鉄心間にはテイースのない軸
方向空間を設け、一方の区分した鉄心のスロツト
内のコイル辺を他方の区分した鉄心のスロツト内
では異なる位置を通すためにコイル辺を曲げ成形
して挿入している。本電機子でテイースのない軸
方向空間を設ける場合、冷却ダクトに対応させる
構造が考えられている。この場合、大容量機では
軸方向の数個所に冷却ダクトを設けているので容
易に行なうことができるが、中小容量機では冷却
ダクトを設けていない。このため、鉄心積厚長を
同一（磁気回路面積を同一）にして冷却ダクトを
設けようとするとその分だけ電機子の軸方向寸法
が増加する欠点が生じる。また、区分した鉄心間
に絶縁物からなるスペーサを挿入してもその分だ
け電機子軸方向寸法が増加する欠点があつた。 The armature of a conventional DC machine usually has a number of straight slots in the armature core, and armature windings consisting of upper and lower coils are wound in each of these slots. Approximately 1 to 5 upper coils and lower coils are inserted into one slot, and each is connected to a different commutator piece. However, when multiple coil sides are placed in the same slot, each rectifier coil has a different inductance value. Therefore, in order to equalize the effective inductance of each coil, the slots in the rotor core are divided in the axial direction.
An axial space without teeth is provided between each of the divided cores, and the coil sides are bent and formed in order to pass the coil sides in the slots of one divided core to different positions in the slots of the other divided core. is inserted. When providing an axial space without teeth in this armature, a structure that accommodates the cooling duct is being considered. In this case, large-capacity machines are equipped with cooling ducts at several locations in the axial direction, so this can be easily accomplished, but small- to medium-sized capacity machines are not provided with cooling ducts. For this reason, if a cooling duct is provided with the same core thickness (the magnetic circuit area is the same), the axial dimension of the armature increases accordingly. Furthermore, even if a spacer made of an insulating material is inserted between the divided iron cores, there is a drawback that the armature axial dimension increases by that amount.
本考案の目的は上記した従来技術の欠点をなく
し、整流コイルの実効インダクタンスを均一化す
る巻線を適用しても磁気回路が確保できる直流機
の電機子を提供するにある。 The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide an armature for a DC machine that can maintain a magnetic circuit even when windings are used to equalize the effective inductance of the rectifier coil.
この目的を達成するため、本案は、軸方向に区
分した電機子鉄心間にこの電機子鉄心より小径の
無溝電機子鉄心を配置し、かつ無溝鉄心の外周に
は絶縁層を設け、又その外周に電機子巻線を配設
するとともに、その外周にバインド部を設けるよ
うにしたものである。 In order to achieve this objective, the present invention places a grooveless armature core with a smaller diameter than the armature core between the armature cores divided in the axial direction, and provides an insulating layer around the outer periphery of the grooveless core. An armature winding is disposed on the outer periphery of the armature, and a binding portion is provided on the outer periphery of the armature winding.
以下、本案の一実施例を第１図ないし、第４図
について説明する。 An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.
第１図および第２図は１スロツト中の上、下コ
イル辺がそれぞれ２の場合の整流コイルの実効イ
ンダクタンスを均一化する巻線の展開図で、第１
図は区分した電機子９ａ，９ｂを、周方向でずら
した場合、第２図は周方向でずらさない場合を示
している。両図で整流子１３と摺接しているブラ
シ１８が整流子片１と２の短絡を開放した時点、
すなわち、整流コイル１２a1−１２b1の整流が終
るときは、電機子９ａ側の同一スロツト１１a1内
にブラシ１８で短絡されている整流コイル１２c1
−１２d1が存在するので相互誘導作用が働く。次
に矢印の回転方向に回転してブラシ１８の位置が
相対的にＢの位置になると整流コイル１２c1−１
２d1の整流が終ろうとする。このとき、電機子９
ｂ側のスロツト１１b2内にはブラシで短絡されて
いる整流コイル１２a2−１２b2が存在するので、
先と同様に相互誘導作用が生じ、実効インダクタ
ンスを小さくするとともに均一化する。この巻線
を適用するには電機子鉄心を軸方向に区分して、
テイースの存在しない軸方向空間１４を設ける必
要がある。第３図は上記巻線法を適用した本案の
直流機の一例を示す上半部縦断側面図および第４
図は第３図の電機子鉄心を構成する電機子鉄板１
枚の形状を示す。これらの図において１は継鉄、
２，３は継鉄１に固着された界磁鉄心および補助
鉄心、４，５は界磁鉄心２および補極鉄心３にそ
れぞれ巻装された界磁巻線および補極巻線、６は
継鉄１の両開口端部に取付けられたエンドブラケ
ツトで、これらの各部分１〜６により固定子が構
成されている。 Figures 1 and 2 are developed diagrams of the winding that equalizes the effective inductance of the rectifier coil when the upper and lower coil sides in one slot are 2, respectively.
The figure shows the case where the divided armatures 9a and 9b are shifted in the circumferential direction, and FIG. 2 shows the case where they are not shifted in the circumferential direction. When the brush 18 in sliding contact with the commutator 13 in both figures releases the short circuit between the commutator pieces 1 and 2,
That is, when rectification of the rectifier coils 12a 1 - 12b 1 is completed, the rectifier coil 12c 1 short-circuited by the brush 18 is placed in the same slot 11a 1 on the armature 9a side.
-12d 1 exists, so a mutual induction effect works. Next, when the brush 18 rotates in the direction of rotation shown by the arrow and reaches the relative position B, the rectifying coil 12c 1 -1
2d 1 rectification is about to end. At this time, armature 9
Since there is a rectifier coil 12a 2 -12b 2 short-circuited with a brush in the slot 11b 2 on the b side,
As before, a mutual induction effect occurs, which reduces and equalizes the effective inductance. To apply this winding, divide the armature core in the axial direction,
It is necessary to provide an axial space 14 in which teeth do not exist. Figure 3 is a vertical cross-sectional side view of the upper half of the proposed DC machine to which the above-mentioned winding method is applied;
The figure shows armature iron plate 1 that constitutes the armature core in Figure 3.
The shape of the sheet is shown. In these figures, 1 is the yoke,
2 and 3 are a field core and an auxiliary core fixed to the yoke 1, 4 and 5 are field windings and a commutator winding wound around the field core 2 and the commutator core 3, respectively, and 6 is a joint. End brackets are attached to both open ends of the iron 1, and each of these parts 1 to 6 constitutes a stator.
７は前記エンドブラケツト６に軸受８を介して
支承されたシヤフトで、シヤフト７の外周部に
は、区分されたスロツトを有する電機子鉄心９
ａ，９ｂおよび区分された電機子鉄心９ａ，９ｂ
間にはスロツトのない、すなわち、無溝電機子鉄
心９ｃが積層されて固着されている。無溝電機子
鉄心９ｃの外周には絶縁層１５（もしくは絶縁フ
イルム）が、スロツト内のスロツトライナーと同
一レベルになるように設けられ、絶縁層の外周に
はテイースがないため軸方向空間１４が存在する
が区分された電機子９ａ，９ｂのスロツトに挿入
された電機子コイル１２が周方向に曲げられて配
設される。さらに、電機子コイルの外周には従来
同様のエンドコイル部のバインド部１６ａ，１６
ｂおよび無溝電機子鉄心９ｃに対応した電機子巻
線１２の外周にもバインド部１６ｃを設けるよう
にする。また、１３はシヤフト７に固着された整
流子で、これらの部分７〜１６により回転子が構
成されている。また、１７はエンドブラケツト６
に取付けられたブラシ保持器でブラシ１８を整流
子１３に摺接するように保持している。本構成に
すると軸方向空間１４を構成するための無溝電機
子鉄心９ｃは磁気回路を構成することができる。
すなわち、磁極から出た磁束（鎖線の矢印）は電
機子鉄心９ａ，９ｂのテイースを通過して電機子
鉄心９ａ，９ｂ，９ｃの電機子鉄心背部に入るの
で無溝電機子鉄心９ｃは磁気回路の一部として作
用することができる。この結果、整流コイルの実
効インダクタンスを均一化する巻線を適用して
も、従来の電機子鉄心積厚寸法をほぼ維持して適
用することができる。 Reference numeral 7 denotes a shaft supported by the end bracket 6 via a bearing 8, and an armature core 9 having a divided slot is provided on the outer periphery of the shaft 7.
a, 9b and divided armature cores 9a, 9b
An armature core 9c without a slot, ie, a grooveless armature core 9c, is stacked and fixed therebetween. An insulating layer 15 (or an insulating film) is provided on the outer periphery of the non-grooved armature core 9c so as to be on the same level as the slot liner in the slot, and since there are no teeth on the outer periphery of the insulating layer, an axial space 14 is provided. The armature coil 12 is inserted into the slot of the divided armatures 9a and 9b and is bent in the circumferential direction. Furthermore, the outer periphery of the armature coil is provided with binding portions 16a, 16 of the end coil portion similar to the conventional one.
A bind portion 16c is also provided on the outer periphery of the armature winding 12 corresponding to the grooveless armature core 9c. Further, 13 is a commutator fixed to the shaft 7, and these parts 7 to 16 constitute a rotor. Also, 17 is the end bracket 6
The brush 18 is held in sliding contact with the commutator 13 by a brush holder attached to the commutator 13. With this configuration, the grooveless armature core 9c for forming the axial space 14 can form a magnetic circuit.
That is, the magnetic flux (dashed line arrow) emitted from the magnetic poles passes through the teeth of the armature cores 9a, 9b and enters the backs of the armature cores 9a, 9b, 9c, so the grooveless armature core 9c forms a magnetic circuit. can act as part of the As a result, even if a winding that equalizes the effective inductance of the rectifier coil is applied, the conventional armature core thickness dimension can be substantially maintained.
本案によれば同一スロツト中の整流コイルの実
効インダクタンスを均一化する巻線方式を適用し
ても、電機子鉄心積厚寸法を従来巻線を適用した
電機子の場合とほぼ同等にできるので、電動機を
大きくすることなく、整流性能を1.5倍以上に向
上できる電機子を得ることができる。 According to this proposal, even if a winding method is applied that equalizes the effective inductance of rectifier coils in the same slot, the armature core thickness can be made almost the same as that of an armature using conventional winding. It is possible to obtain an armature that can improve rectification performance by more than 1.5 times without increasing the size of the motor.
第１図、第２図は本案の電機子に適用する同一
スロツトにおける各整流コイルの実効インダクタ
ンスを均一化する巻線法の展開図、第３図は本案
の一実施例に係る直流機の上半部縦断側面図およ
び第４図は電機子鉄心を構成する電機子鉄板の斜
視図である。
９……電機子、９ａ，９ｂ……有溝電機子鉄
心、９ｃ……無溝電機子鉄心、１２……電機子巻
線、１５……絶縁層、１６ｃ……バインド部。
Figures 1 and 2 are developed diagrams of the winding method for equalizing the effective inductance of each rectifier coil in the same slot, which is applied to the armature of the present invention. The half longitudinal side view and FIG. 4 are perspective views of the armature iron plate constituting the armature core. 9... Armature, 9a, 9b... Grooved armature core, 9c... Non-grooved armature core, 12... Armature winding, 15... Insulating layer, 16c... Binding portion.
Claims (1)
機子鉄心のスロツト内に巻装された複数本のコイ
ル辺を有する上コイルおよび下コイルからなる電
機子巻線とを備えたものにおいて、前記スロツト
を有する電機子鉄心を軸方向に少なくとも２つに
区分し、区分したそれぞれの電機子鉄心間にはこ
の電機子鉄心より小径の無溝電機子鉄心を設けて
軸方向空間を形成し無溝電機子鉄心の外周には絶
縁層を設け、絶縁層の外周にインダクタンス均一
化巻線法にて巻回された電機子巻線を配設すると
ともに、無溝電機子鉄心に対応した電機子巻線の
外周にバインド部を設けたことを特徴とする直流
機の電機子。 In an armature core having a large number of slots, and an armature winding consisting of an upper coil and a lower coil having a plurality of coil sides wound within the slots of the armature core, The armature core is divided into at least two parts in the axial direction, and a grooveless armature core with a smaller diameter than the armature core is provided between each of the divided armature cores to form an axial space. An insulating layer is provided around the outer periphery of the core, and an armature winding wound using the inductance uniform winding method is installed around the outer periphery of the insulating layer. An armature for a DC machine characterized by having a binding section on the outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11689680U JPS626858Y2 (en) | 1980-08-20 | 1980-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11689680U JPS626858Y2 (en) | 1980-08-20 | 1980-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5742574U JPS5742574U (en) | 1982-03-08 |
| JPS626858Y2 true JPS626858Y2 (en) | 1987-02-17 |
Family
ID=29477705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11689680U Expired JPS626858Y2 (en) | 1980-08-20 | 1980-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS626858Y2 (en) |
-
1980
- 1980-08-20 JP JP11689680U patent/JPS626858Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5742574U (en) | 1982-03-08 |
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