JPH099606A - Core for linear pulse motor - Google Patents
Core for linear pulse motorInfo
- Publication number
- JPH099606A JPH099606A JP17659095A JP17659095A JPH099606A JP H099606 A JPH099606 A JP H099606A JP 17659095 A JP17659095 A JP 17659095A JP 17659095 A JP17659095 A JP 17659095A JP H099606 A JPH099606 A JP H099606A
- Authority
- JP
- Japan
- Prior art keywords
- core
- cores
- phase
- magnet
- pulse motor
- 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
Landscapes
- Linear Motors (AREA)
Abstract
Description
【001】[0101]
【産業上の利用分野】本発明は、リニアパルスモータの
コアに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core of a linear pulse motor.
【002】[0092]
【従来の技術】従来の技術として、コの字形をしたコア
の両脚部の表面に所定ピッチで歯を設けた2相用の積層
したコアと、この積層したコアの胴部に巻回した2相用
のコイルと、2相用のコア間に永久磁石を挟み込み接着
したリニアパルスモータがある(例えば、特開昭62−
77052 号公報)。2. Description of the Related Art As a conventional technique, a two-phase laminated core in which teeth are provided on a surface of both legs of a U-shaped core at a predetermined pitch, and two cores are wound around a body of the laminated core. There is a linear pulse motor in which a permanent magnet is sandwiched and bonded between a phase coil and a two-phase core (for example, Japanese Laid-Open Patent Publication No. 62-
77052).
【003】[0093]
【発明が解決しようとする課題】ところが、従来の技術
では、各相用のコアを別々につくり、コア間に永久磁石
を挟み込み接着するので、永久磁石の寸法精度および接
着剤の膜厚により歯ピッチの精度が決まるため、永久磁
石の寸法精度および接着剤の膜厚の精度が直接送り精度
に影響していた。そこで、本発明は、永久磁石の寸法精
度および接着剤の膜厚の精度の影響を受けない、精度の
良い歯ピッチを実現できるリニアパルスモータのコアを
提供することを目的とする。However, in the prior art, the cores for each phase are formed separately, and the permanent magnets are sandwiched and bonded between the cores. Therefore, the tooth accuracy depends on the dimensional accuracy of the permanent magnets and the film thickness of the adhesive. Since the pitch accuracy is determined, the dimensional accuracy of the permanent magnet and the accuracy of the film thickness of the adhesive directly affect the feed accuracy. Therefore, an object of the present invention is to provide a core of a linear pulse motor that can realize a highly accurate tooth pitch without being affected by the dimensional accuracy of the permanent magnet and the accuracy of the film thickness of the adhesive.
【課題を解決するための手段】上記課題を解決するた
め、コの字形をしたコアの両脚部の表面に所定ピッチで
歯2を設けた各相用のコアと、このコアを積層しその胴
部に巻回した各相用のコイル5A、5Bと、各相用のコ
ア間にマグネット7を備えたリニアパルスモータのコア
において、前記コアを一枚のコア1とし、このコア1に
各相用コア1A、1Bと、各相用コア1A、1B間に設
けた継ぎ部8と、この継ぎ部8に形成した前記マグネッ
ト7の幅より広い幅のマグネット挿入溝6を1スタンプ
で打ち抜く。In order to solve the above-mentioned problems, a core for each phase in which teeth 2 are provided on the surfaces of both legs of a U-shaped core at a predetermined pitch, and this core are laminated to form a cylinder In the core of the linear pulse motor having the coils 5A and 5B for each phase wound around the part and the magnet 7 between the cores for each phase, the core is a single core 1 and The cores 1A, 1B, the joint 8 provided between the phase cores 1A, 1B, and the magnet insertion groove 6 having a width wider than that of the magnet 7 formed in the joint 8 are punched with one stamp.
【005】[0056]
【作用】上記手段により、歯2が所定のピッチでコアに
一体形成され、かつマグネット挿入溝6が永久磁石7の
幅寸法および接着剤の膜厚の公差を吸収する。By the above means, the teeth 2 are integrally formed on the core at a predetermined pitch, and the magnet insertion groove 6 absorbs the tolerance of the width of the permanent magnet 7 and the thickness of the adhesive.
【006】[0086]
【実施例】以下に、本発明の実施例を図1に基づいて説
明する。矩形の強磁性体よりなるコア1には、コの字形
のA相用のコア1Aと、幅Yのマグネット挿入溝6とコ
の字形のB相用のコア1Bを1スタンプで打ち抜いてあ
る。A相用のコア1AとB相用のコア1Bには、歯2の
ピッチをpとし、歯2の幅をtpとしたとき、幅(p−
tp)の歯溝3、幅Xのコイル溝4、幅(p−tp)の
歯溝3の順で設けてある。マグネット挿入溝6のコア1
の背面には、極く細い継ぎ部8を切り残してある。ここ
で、マグネット挿入溝6の幅Yはマグネット7の幅Bよ
り広くして、マグネット7の幅寸法および接着剤の膜厚
の公差を吸収するようにしてある。ただし、m、nを、
m>nの整数としてとき、XとYは下記の式を満足する
ようにしてある。 X=(n−1/2)・p−tp (1) Y=(m−n−5/4)−tp、かつ Y>B (2) マグネット挿入溝6に、歯2の配列方向に着磁したマグ
ネット7を挿入し、接着剤等で固定する。その後、コイ
ル溝4、4の上部のコアの胴部に、A相コイル5AとB
相コイル5Bをトロイダルに巻回してある。なお、3相
以上の場合は、歯ピッチが相数に対応する位相差を生じ
るようにp、X、Yを決定し、実施例のB相用のコア1
Bに連続させて、マグネット挿入溝6、歯溝3、コイル
溝4、歯溝3を設けたコの字形の各相用のコア1C・・
・を設ければよい。Embodiment An embodiment of the present invention will be described below with reference to FIG. In the core 1 made of a rectangular ferromagnetic material, a U-shaped core 1A for A phase, a magnet insertion groove 6 having a width Y and a U-shaped core 1B for B phase are stamped with one stamp. When the pitch of the teeth 2 is p and the width of the teeth 2 is tp, the core 1A for the A phase and the core 1B for the B phase have a width (p-
tp), the tooth groove 3 having the width X, the tooth groove 3 having the width (p-tp), are provided in this order. Core 1 of magnet insertion groove 6
An extremely thin joint 8 is left uncut on the back surface of the. Here, the width Y of the magnet insertion groove 6 is made wider than the width B of the magnet 7 so as to absorb the tolerance of the width dimension of the magnet 7 and the film thickness of the adhesive. However, m and n are
When m> n is an integer, X and Y satisfy the following equations. X = (n-1 / 2) * p-tp (1) Y = (m-n-5 / 4) -tp, and Y> B (2) Attach to the magnet insertion groove 6 in the arrangement direction of the teeth 2. The magnetized magnet 7 is inserted and fixed with an adhesive or the like. After that, the A-phase coils 5A and B are placed on the body of the core above the coil grooves 4 and 4.
The phase coil 5B is toroidally wound. When there are three or more phases, p, X and Y are determined so that the tooth pitch produces a phase difference corresponding to the number of phases, and the core 1 for B phase of the embodiment is used.
A U-shaped core 1C for each phase provided with a magnet insertion groove 6, a tooth groove 3, a coil groove 4, and a tooth groove 3 in succession to B.
• should be provided.
【発明の効果】上記の構成により、下記の効果がある。 (1)コアに歯、コイル溝とマグネット挿入溝を1スタ
ンプで一体形成するので、歯をピッチ精度良く配列でき
る。 (2)マグネット挿入溝の幅をマグネットの幅より広く
し、マグネットの幅寸法および接着剤の膜厚の公差を吸
収するので、歯ピッチの調整が不要になり製作し易くな
るとともに、歩留りが向上する。The above-mentioned structure has the following effects. (1) Since the teeth, the coil groove, and the magnet insertion groove are integrally formed on the core with one stamp, the teeth can be arranged with a high pitch accuracy. (2) The width of the magnet insertion groove is made wider than the width of the magnet to absorb the tolerance of the width dimension of the magnet and the film thickness of the adhesive, so that it is not necessary to adjust the tooth pitch, which facilitates the production and improves the yield. To do.
【図1】本発明の実施例を示す正面図FIG. 1 is a front view showing an embodiment of the present invention.
1 コア 1A A相用のコア 1B B相用のコア 2 歯 3 歯溝 4 コイル溝 5A A相コイル 5B B相コイル 6 マグネット挿入溝 7 マグネット 8 継ぎ部 1 Core 1A A Phase Core 1B B Phase Core 2 Tooth 3 Tooth Groove 4 Coil Groove 5A A Phase Coil 5B B Phase Coil 6 Magnet Insertion Groove 7 Magnet 8 Joint
Claims (1)
定ピッチで歯を設けた各相用のコアと、このコアを積層
し、その胴部に巻回した各相用のコイルと、各相用のコ
ア間にマグネットを備えたリニアパルスモータのコアに
おいて、 前記コアを1枚板とし、前記各相用のコアと、前記各相
用のコア間に設けた継ぎ部と、この継ぎ部に形成した前
記マグネットの幅より広い幅のマグネット挿入溝とを打
ち抜いたことを特徴とするリニアパルスモータのコア。1. A core for each phase in which teeth are provided on the surfaces of both leg portions of a U-shaped core at a predetermined pitch, and a coil for each phase which is obtained by stacking the cores and winding the core around the core. In a core of a linear pulse motor having a magnet between cores for each phase, the core is a single plate, a core for each phase, and a joint portion provided between the cores for each phase, A core of a linear pulse motor, wherein a magnet insertion groove having a width wider than the width of the magnet formed in the joint portion is punched out.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17659095A JPH099606A (en) | 1995-06-19 | 1995-06-19 | Core for linear pulse motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17659095A JPH099606A (en) | 1995-06-19 | 1995-06-19 | Core for linear pulse motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH099606A true JPH099606A (en) | 1997-01-10 |
Family
ID=16016233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17659095A Pending JPH099606A (en) | 1995-06-19 | 1995-06-19 | Core for linear pulse motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH099606A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004504796A (en) * | 2000-07-17 | 2004-02-12 | インベンテイオ・アクテイエンゲゼルシヤフト | Secondary part of linear motor and method for manufacturing the same |
KR100439076B1 (en) * | 2001-05-10 | 2004-07-14 | 에스엠씨 가부시키 가이샤 | Linear Motor |
US8022587B2 (en) * | 2006-02-03 | 2011-09-20 | Siemens Aktiengesellschaft | Electrical machine with nonuniform pole teeth |
CN106998126A (en) * | 2017-04-28 | 2017-08-01 | 鲁东大学 | Transverse magnetic flux magnetic field modulation type linear motor |
CN107070167A (en) * | 2017-04-28 | 2017-08-18 | 鲁东大学 | A kind of transverse magnetic flux magnetic-field modulation-type linear electric motors |
-
1995
- 1995-06-19 JP JP17659095A patent/JPH099606A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004504796A (en) * | 2000-07-17 | 2004-02-12 | インベンテイオ・アクテイエンゲゼルシヤフト | Secondary part of linear motor and method for manufacturing the same |
KR100439076B1 (en) * | 2001-05-10 | 2004-07-14 | 에스엠씨 가부시키 가이샤 | Linear Motor |
US8022587B2 (en) * | 2006-02-03 | 2011-09-20 | Siemens Aktiengesellschaft | Electrical machine with nonuniform pole teeth |
CN106998126A (en) * | 2017-04-28 | 2017-08-01 | 鲁东大学 | Transverse magnetic flux magnetic field modulation type linear motor |
CN107070167A (en) * | 2017-04-28 | 2017-08-18 | 鲁东大学 | A kind of transverse magnetic flux magnetic-field modulation-type linear electric motors |
CN106998126B (en) * | 2017-04-28 | 2019-09-27 | 鲁东大学 | Transverse magnetic flux magnetic field modulation type linear motor |
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