JPH038049Y2 - - Google Patents
Info
- Publication number
- JPH038049Y2 JPH038049Y2 JP1984176355U JP17635584U JPH038049Y2 JP H038049 Y2 JPH038049 Y2 JP H038049Y2 JP 1984176355 U JP1984176355 U JP 1984176355U JP 17635584 U JP17635584 U JP 17635584U JP H038049 Y2 JPH038049 Y2 JP H038049Y2
- Authority
- JP
- Japan
- Prior art keywords
- armature
- core
- core blocks
- phase
- wound
- 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
- 238000010586 diagram Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は小型モータに関し、特に界磁磁石と電
機子の間のコギング力を低減する小型モータに関
する。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a small motor, and particularly to a small motor that reduces cogging force between a field magnet and an armature.
(ロ) 従来の技術
従来、小型モータは電機子コイルを巻装する突
極を有する電機子コアが界磁磁石に対し相対的に
回転するものであり、突極を有するが故に、その
回転力にコギングを生じ、滑らかな回転を妨げる
一因となつていた。(b) Conventional technology Conventionally, in a small motor, an armature core having a salient pole around which an armature coil is wound rotates relative to a field magnet. This caused cogging, which was one of the reasons for preventing smooth rotation.
このコギングを低減するため、電機子コアの隣
接する突極間に補極を設けたり、あるいは各突極
の周面（磁極面）に軸方向のスリツトを設けるこ
とが提案されている（たとえば特公昭58−42708
号公報参照）。この提案はコギング力を従来の1/2
〜1/3程度に抑えることができる。 In order to reduce this cogging, it has been proposed to provide a complementary pole between adjacent salient poles of the armature core, or to provide an axial slit on the circumferential surface (magnetic pole surface) of each salient pole (for example, Kosho 58-42708
(see publication). This proposal reduces the cogging force to 1/2 that of the conventional one.
It can be suppressed to about 1/3.
ところが、この提案はコギング力をより小さく
低減することができない。 However, this proposal cannot reduce the cogging force to a smaller extent.
(ハ) 考案が解決しようとする問題点
本考案はかかる点に鑑み考案されたものにし
て、コギング力をより一層低減せんとするもので
ある。(c) Problems to be solved by the invention The present invention has been devised in view of these points and aims to further reduce the cogging force.
(ニ) 問題点を解決するための手段
かかる問題点を解決するため、本考案は、（2n
＋１）個の突極を有するコアを複数枚づつ積層し
た第１及び第２のコアブロツクと、各コアブロツ
クの対応する突極に巻装され、且直列又は並列接
続される（2n＋１）相の電機子コイルと、この
各相の電機子コイルを巻装した第１及び第２のコ
アブロツクを、周方向に角度360／［２（2n＋
１）］ずらして取付ける取付部材とを具備してな
るものである。(d) Means to solve the problem In order to solve the problem, the present invention has (2n
+1) first and second core blocks each having a plurality of stacked cores each having salient poles, and a (2n+1) phase armature wound around the corresponding salient pole of each core block and connected in series or parallel. The coil and the first and second core blocks around which the armature coils of each phase are wound are arranged at an angle of 360/[2(2n+) in the circumferential direction.
1)] A mounting member that is mounted in a staggered manner.
(ホ) 作用
第１及び第２のコアブロツクが周方向に角度
360／［２（2n＋１）］ずれているため、第１のコ
アブロツクの界磁磁石に対する相対的回転による
コギング力と、第２のコアブロツクの界磁磁石に
対する相対的回転によるコギング力とが互いに打
消しあい、コギング力を原理的に零にする。(E) Action The first and second core blocks are angled in the circumferential direction.
360/[2(2n+1)], so the cogging force due to the relative rotation of the first core block to the field magnet and the cogging force due to the relative rotation of the second core block to the field magnet cancel each other out. , the cogging force is reduced to zero in principle.
(ヘ) 実施例 本考案の一実施例を図面に基いて説明する。(f) Examples An embodiment of the present invention will be described based on the drawings.
第１図は小型モータの電機子の斜視図、第２図
は第１及び第２のコアブロツクを電機子軸に取付
けた側面図、第３図は電機子コアと界磁磁石の関
係を示す正面図である。 Figure 1 is a perspective view of the armature of a small motor, Figure 2 is a side view of the first and second core blocks attached to the armature shaft, and Figure 3 is a front view showing the relationship between the armature core and field magnet. It is a diagram.
これらの図面において、１は電機子にして、第
１及び第２のコアブロツク２，３を有する。これ
らのコアブロツクは夫々（2n＋１）個（ｎは正
整数）の突極４を有するコア５を複数枚づつ積層
固定したものであり、両コアブロツクは同形であ
り、各コアブロツクの突極４には第４図に示す
（2n＋１）相の内の各相コイル６，７，８が巻装
される。具体的には、各相コイルは２個のコイル
６1，６2，７1，７2，８1，８2からなり、その一
方は第１のコアブロツク２の突極４に、他方は第
２のコアブロツク３に対応する突極４に、夫々巻
装され、各相２個のコイルは直列又は並列接続さ
れる。第４図には並列接続の場合を示す。 In these figures, 1 is an armature having first and second core blocks 2,3. These core blocks each have a plurality of cores 5 having (2n+1) (n is a positive integer) salient poles 4 stacked and fixed, both core blocks having the same shape, and each core block having a salient pole 4 with a Each phase coil 6, 7, 8 of the (2n+1) phases shown in FIG. 4 is wound. Specifically, each phase coil consists of two coils 6 1 , 6 2 , 7 1 , 7 2 , 8 1 , 8 2 , one of which is connected to the salient pole 4 of the first core block 2, and the other is connected to the salient pole 4 of the first core block 2. The coils are wound around the salient poles 4 corresponding to the two core blocks 3, respectively, and the two coils for each phase are connected in series or in parallel. FIG. 4 shows the case of parallel connection.
このように各相の電機子コイル６，７，８を巻
装した第１及び第２のコアブロツク２，３は、電
機子軸９に取付けられる。この取付けに際して、
両コアブロツク２，３は角度360／［２（2n＋
１）］だけ周方向にずらして取付けられる。図示
した実施例は、ｎ＝１であり、角度60度ずらされ
ている。 The first and second core blocks 2 and 3, around which the armature coils 6, 7 and 8 of each phase are wound in this manner, are attached to the armature shaft 9. During this installation,
Both core blocks 2 and 3 have an angle of 360/[2(2n+
1)] in the circumferential direction. The illustrated embodiment has n=1 and is offset by 60 degrees.
このように所定角度ずらして取付けられた第１
及び第２のコアブロツク２，３は環状の界磁磁石
１０内に回転自在に支持される。この実施例は電
機子１は回転子であり、電機子軸９に取付けた整
流子１１のセグメント１１1，１１2，１１3に一
対の刷子から給電することにより、電機子１が回
転する。 In this way, the first
The second core blocks 2 and 3 are rotatably supported within an annular field magnet 10. In this embodiment, the armature 1 is a rotor, and the armature 1 is rotated by supplying power to segments 11 1 , 11 2 , 11 3 of a commutator 11 attached to an armature shaft 9 from a pair of brushes.
この回転により、一方のコアブロツク２により
第５図実線特性で示すコギング力が発生する。こ
のコギング力の特性は従来の小型モータのコギン
グ力の特性と同形である。 Due to this rotation, one core block 2 generates a cogging force as shown by the solid line characteristic in FIG. The characteristics of this cogging force are the same as those of a conventional small motor.
而して本考案においては、他方のコアブロツク
３の回転により、同図破線特性で示すコギング力
が発生する。このため、両コアブロツク２，３の
回転によるコギング力の和は、同図の実線特性と
破線特性の和であるため零となる。 In the present invention, the rotation of the other core block 3 generates a cogging force as indicated by the broken line characteristic in the figure. Therefore, the sum of the cogging forces due to the rotation of both core blocks 2 and 3 is zero because it is the sum of the solid line characteristic and the broken line characteristic in the figure.
以上の実施例においては、電機子１を回転子に
した場合を示したが、電機子１を固定子とする場
合には、両コアブロツク２，３を固定軸等の取付
部材により、所定角度ずらして結合固定すればよ
い。また実施例では３極の場合を示したが、５極
又は７極の場合にも本考案をそのまま適用するこ
とができる。 In the above embodiment, the armature 1 is used as a rotor, but when the armature 1 is used as a stator, both core blocks 2 and 3 are shifted by a predetermined angle using a mounting member such as a fixed shaft. Just connect and fix it. Further, in the embodiment, a three-pole case is shown, but the present invention can be applied as is to a five-pole or seven-pole case.
(ト) 考案の効果
本考案は、（2n＋１）個の突極を有する第１及
び第２のコアブロツクを、周方向に角度360／
［２（2n＋１）］ずらして電機子を構成したから、
界磁磁石に対する電機子の相対的回転によるコギ
ング力を、可及的に零にすることができる。ま
た、上記第１及び第２のコアブロツクの各突極
に、（2n＋１）相の電機子コイルの各相を直列又
は並列接続されるコイル毎に分散して巻装するこ
とができるので、上記直列又は並列接続されるも
のに相当する電機子コイルの各相を１つのコアブ
ロツクに巻装する従来の場合に比べて、コイルの
巻装を簡単にすることができる。(g) Effects of the invention The present invention has the first and second core blocks having (2n+1) salient poles arranged at an angle of 360/360 in the circumferential direction.
Since the armature was configured by shifting [2(2n+1)],
Cogging force due to relative rotation of the armature with respect to the field magnet can be reduced to zero as much as possible. Furthermore, each phase of the (2n+1) phase armature coil can be wound around each salient pole of the first and second core blocks in a distributed manner for each coil connected in series or in parallel. Alternatively, winding of the coils can be simplified compared to the conventional case in which each phase of armature coils connected in parallel is wound around one core block.
図面は本考案の一実施例を示し、第１図は電機
子の斜視図、第２図は第１及び第２のコアブロツ
クを電機子軸に取付けた側面図、第３図は電機子
コアと界磁磁石の関係を示す正面図、第４図は電
機子の電気回路図、第５図はコギング力の特性図
である。
４……突極、２，３……第１及び第２のコアブ
ロツク、６，７，８……電機子コイル、９……取
付部材（電機子軸）。
The drawings show one embodiment of the present invention; Fig. 1 is a perspective view of the armature, Fig. 2 is a side view of the first and second core blocks attached to the armature shaft, and Fig. 3 is a diagram showing the armature core. A front view showing the relationship between field magnets, FIG. 4 is an electric circuit diagram of the armature, and FIG. 5 is a characteristic diagram of cogging force. 4... salient pole, 2, 3... first and second core blocks, 6, 7, 8... armature coil, 9... mounting member (armature shaft).
Claims (1)
つ積層した第１及び第２のコアブロツクと、各コ
アブロツクの対応する突極に巻装され、且直列又
は並列接続される（2n＋１）相の電機子コイル
と、 この各相の電機子コイルを巻装した第１及び第
２のコアブロツクを、周方向に角度360／［２
（2n＋１）］ずらして取付ける取付部材と、 を具備してなる小型モータ。[Claims for Utility Model Registration] First and second core blocks each having a plurality of stacked cores each having (2n+1) salient poles, which are wound around the corresponding salient poles of each core block and connected in series or in parallel. (2n+1) phase armature coils and the first and second core blocks around which the armature coils of each phase are wound are arranged at an angle of 360/[2
(2n+1)] A small motor that is equipped with a mounting member that can be installed in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984176355U JPH038049Y2 (en) | 1984-11-20 | 1984-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984176355U JPH038049Y2 (en) | 1984-11-20 | 1984-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6192155U JPS6192155U (en) | 1986-06-14 |
| JPH038049Y2 true JPH038049Y2 (en) | 1991-02-27 |
Family
ID=30733955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984176355U Expired JPH038049Y2 (en) | 1984-11-20 | 1984-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH038049Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100951755B1 (en) * | 2005-10-13 | 2010-04-08 | 파나소닉 주식회사 | Motor having twin-rotor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS43312Y1 (en) * | 1965-09-03 | 1968-01-09 | ||
| JPS53140509A (en) * | 1977-05-16 | 1978-12-07 | Tokuo Furuya | Rotor of series motor |
| JPS5545693B2 (en) * | 1975-06-19 | 1980-11-19 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545693U (en) * | 1979-09-17 | 1980-03-25 |
-
1984
- 1984-11-20 JP JP1984176355U patent/JPH038049Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS43312Y1 (en) * | 1965-09-03 | 1968-01-09 | ||
| JPS5545693B2 (en) * | 1975-06-19 | 1980-11-19 | ||
| JPS53140509A (en) * | 1977-05-16 | 1978-12-07 | Tokuo Furuya | Rotor of series motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6192155U (en) | 1986-06-14 |
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