JPS6323523A - Electrically driven motor with integrated coil having magnetic material injection-molded yoke - Google Patents
Electrically driven motor with integrated coil having magnetic material injection-molded yokeInfo
- Publication number
- JPS6323523A JPS6323523A JP16536486A JP16536486A JPS6323523A JP S6323523 A JPS6323523 A JP S6323523A JP 16536486 A JP16536486 A JP 16536486A JP 16536486 A JP16536486 A JP 16536486A JP S6323523 A JPS6323523 A JP S6323523A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- yoke
- magnetic material
- molded
- driven 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
- 239000000696 magnetic material Substances 0.000 title claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 5
- 230000002542 deteriorative effect Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、スロットを有する小型電動モータの構造に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a small electric motor having a slot.
本発明は、スロットを有する電動モータにおいて、樹脂
に鉄粉等の磁性材料を混入した射出成形の継鉄と、前記
継鉄射出成形時にモールドしたコイルを有する事により
電動モータの小型化とトルクの向上を可能とするととも
に、製作コストの低減をもたらしたものである。The present invention provides an electric motor having a slot with an injection-molded yoke in which magnetic material such as iron powder is mixed into resin, and a coil molded during injection molding of the yoke, thereby reducing the size of the electric motor and reducing torque. This not only makes it possible to improve the quality of the product, but also reduces manufacturing costs.
従来のスロットを有する電動モータの継鉄は図２に示す
ように珪素鋼板などを積層して作られ、前記継鉄にコイ
ルを巻いた構造が多用されていた。A conventional yoke for an electric motor having a slot is often made of laminated silicon steel plates as shown in FIG. 2, and has a structure in which a coil is wound around the yoke.
またスロットレスモータと呼ばれる継鉄を用いない電動
モータにおいては第３図に示すように樹脂によるコイル
のモールドが行なわれていたものもあった。Furthermore, in some electric motors called slotless motors that do not use a yoke, the coils are molded with resin as shown in FIG.
しかし、従来の継鉄にコイルを巻いた構造のモータは小
型化を目標とした場合、継鉄にコイルを巻くことが難し
くなり、また極数も少なくなりがちで、その結果として
コギングの増加などの悪影響がでることが多いという問
題点を有していた。However, with conventional motors that have a structure where a coil is wound around a yoke, if the goal is to downsize, it becomes difficult to wind a coil around the yoke, and the number of poles tends to be small, resulting in an increase in cogging. The problem is that it often causes negative effects.
一方スロットレスモータではコイルの巻線小型化には対
応できたが、しかしギャップ長が太きくなるため小型化
をすると十分なトルクを確保することが難しいという問
題があった。On the other hand, slotless motors have been able to accommodate smaller coil windings, but because the gap length becomes thicker, there is a problem in that it is difficult to ensure sufficient torque when downsized.
そこで本発明は従来のこのような問題点を解決するため
、小型化をしてもトルクの減少が小さく、しかもコギン
グを原因とする回転ムラが小さい電動モータを提供する
ことを目的としている。SUMMARY OF THE INVENTION In order to solve these conventional problems, the present invention aims to provide an electric motor that has a small reduction in torque even when downsized and has small rotational irregularities caused by cogging.
上記問題点を解決するため、本発明のコイル−体磁性材
射出成形継鉄を有する電動モータは・樹脂に鉄粉等の軟
質磁性材料を混入した射出成形の継鉄と、前記継鉄射出
成形時にモールドしたコイルを有する事を特徴とする。In order to solve the above problems, an electric motor having a coil-body magnetic material injection molded yoke of the present invention includes: an injection molded yoke in which a soft magnetic material such as iron powder is mixed into resin; It is sometimes characterized by having a molded coil.
上記のように構成された電動モータにおいては予め巻い
ておいたコイルを射出成形の型に組込み、そこに樹脂に
鉄粉等の軟質磁性材料を混入した材料を射出する製造法
によるため巻線のための無駄な空間がなくなり巻線数を
多くとることができ、しかも極数も多くとることが可能
なため電流による磁界は強くしか・もムラなく発生する
□その結果トルクや回転ムラ等の性能を劣化させること
なく電動モータの小型化を可能とし、しかも製作コスト
の低減をもたらしたものである。The electric motor constructed as described above uses a manufacturing method in which a pre-wound coil is assembled into an injection mold, and a material made of resin mixed with a soft magnetic material such as iron powder is injected into it. Because there is no wasted space, it is possible to have a large number of windings, and it is also possible to have a large number of poles, so the magnetic field generated by the current is strong and evenly generated.As a result, performance such as torque and rotational unevenness is improved. This makes it possible to downsize the electric motor without deteriorating the motor, and also reduces manufacturing costs.
以下に本発明の実施例を図面に基づいて説明する。第１
図においてアウターローターモータのロータ１の内面に
ラジアル方向に着磁された永久磁石２が固層されている
０ギヤツプを隔ててステータ一部を構成するコイル３と
継鉄４およびハウジング５がある。コイル３は継鉄４の
射出成形時にモールドされている。軸７はロータ１と結
合されステータ一部に対し軸受６を介して回転する。Embodiments of the present invention will be described below based on the drawings. 1st
In the figure, there are a coil 3, a yoke 4, and a housing 5, which constitute part of a stator, separated by a zero gap in which permanent magnets 2 magnetized in the radial direction are solidly layered on the inner surface of a rotor 1 of an outer rotor motor. The coil 3 is molded when the yoke 4 is injection molded. The shaft 7 is connected to the rotor 1 and rotates through a bearing 6 relative to a portion of the stator.
本発明の製造行程においてコイル３は予め巻かれて射出
成形用の型にセットされる。前記射出成形用の型にはハ
ウジング５も同時にセットされている。継鉄４は樹脂に
鉄粉等の軟質磁性材料を混入した組成となっておりコイ
ル６およびハウジング５がセットされている型内に射出
される。したがって狭いスロット間においてコイル巻線
をおこなう必要がなくコイル形状を自由に製作すること
ができる。その結果として第１図に示すようにスロット
の極数を増やすことが容易となり、しがも巻線効率を上
げることができる〇
以上の様な実施例において、樹脂に磁性材料を混入した
射出成形の継鉄と、前記継鉄射出成形時にコイルをモー
ルドすることにより従来のモータと比較してスロット数
の増加と巻線効率の上昇の結果、トルクや回転ムラ等の
性能を劣下させることなく可能となる。In the manufacturing process of the present invention, the coil 3 is wound in advance and set in a mold for injection molding. A housing 5 is also set in the injection mold at the same time. The yoke 4 is made of a resin mixed with a soft magnetic material such as iron powder, and is injected into a mold in which the coil 6 and housing 5 are set. Therefore, there is no need to wind the coil between narrow slots, and the coil shape can be manufactured freely. As a result, as shown in Figure 1, it is easy to increase the number of poles in the slot, which in turn increases the winding efficiency. By molding the coil during injection molding of the yoke and the yoke, the number of slots is increased and the winding efficiency is increased compared to conventional motors, without deteriorating performance such as torque or uneven rotation. It becomes possible.
また以上の実施例ではアウターロータル型のモータにつ
いて説明したが、本発明はスロットを有すル総てのモー
タに適用できることを付記しておく＠〔発明の効果〕
本発明は以上説明したように、スロットを有する小型電
動モータにおいて、樹脂に鉄粉等の磁性材料を混入した
射出成形による継鉄でコイルをモールドすることにより
トルクや回転ムラ等の性能を劣下させることなく電動モ
ータの小型化を可能とするとともに、製作コストの低減
をもたらしたものである◎Furthermore, although the above embodiments have been described with respect to outer rotor type motors, it should be noted that the present invention can be applied to all types of motors having slots. For small electric motors with slots, the coils are molded using injection-molded yoke made of resin mixed with magnetic materials such as iron powder. This made it possible to reduce the production cost as well as reduce production costs◎
第１図は、本発明にかがる小型電動モータの水平断面図
、第２図は従来の珪素鋼板のｉ鉄を利用した小型電動モ
ータの水平断面図、第３図は従来のコイルモールド型ス
ロットレス電動モータの水平断面図である。
１・・・・・・ローター
２・・・・・・永久磁石
５・・・・・・コイル
４・・・・・・射出成形による継鉄
５・・・・・・ハウジング
６・・・・・・軸受
７・・・・・・軸
８・・・・・積層珪素鋼板の継鉄
１０・・・・・・射出成形によるコイル支持部材以
上Figure 1 is a horizontal sectional view of a small electric motor according to the present invention, Figure 2 is a horizontal sectional view of a conventional small electric motor using i-iron silicon steel plate, and Figure 3 is a conventional coil mold type electric motor. FIG. 2 is a horizontal cross-sectional view of a slotless electric motor. 1... Rotor 2... Permanent magnet 5... Coil 4... Yoke by injection molding 5... Housing 6... ... Bearing 7 ... Shaft 8 ... Yoke 10 made of laminated silicon steel plate ... Coil support member made by injection molding
Up
Claims (1)
性材料を混入した射出成形の継鉄と、前記継鉄射出成形
時にコイルをモールドした事を特徴としたコイル一体磁
性材射出成形継鉄を有する電動モータ。(1) An electric motor having a slot, which has an injection molded yoke in which a magnetic material is mixed into resin, and a magnetic material injection molded yoke integrated with a coil, characterized in that a coil is molded during the injection molding of the yoke. motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16536486A JPS6323523A (en) | 1986-07-14 | 1986-07-14 | Electrically driven motor with integrated coil having magnetic material injection-molded yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16536486A JPS6323523A (en) | 1986-07-14 | 1986-07-14 | Electrically driven motor with integrated coil having magnetic material injection-molded yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6323523A true JPS6323523A (en) | 1988-01-30 |
Family
ID=15810962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16536486A Pending JPS6323523A (en) | 1986-07-14 | 1986-07-14 | Electrically driven motor with integrated coil having magnetic material injection-molded yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6323523A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105115A (en) * | 1989-08-07 | 1992-04-14 | Mitsubishi Denki Kabushiki Kaisha | Dynamoelectric machine |
| US5536985A (en) * | 1994-05-09 | 1996-07-16 | General Motors Corporation | Composite armature assembly |
| JP2004254421A (en) * | 2003-02-20 | 2004-09-09 | Daikin Ind Ltd | Motor and its manufacturing method |
| FR2959361A1 (en) * | 2010-04-27 | 2011-10-28 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE PARTICULARLY FOR A MOTOR VEHICLE STARTER |
-
1986
- 1986-07-14 JP JP16536486A patent/JPS6323523A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105115A (en) * | 1989-08-07 | 1992-04-14 | Mitsubishi Denki Kabushiki Kaisha | Dynamoelectric machine |
| US5536985A (en) * | 1994-05-09 | 1996-07-16 | General Motors Corporation | Composite armature assembly |
| JP2004254421A (en) * | 2003-02-20 | 2004-09-09 | Daikin Ind Ltd | Motor and its manufacturing method |
| JP4556379B2 (en) * | 2003-02-20 | 2010-10-06 | ダイキン工業株式会社 | Electric motor and manufacturing method thereof |
| FR2959361A1 (en) * | 2010-04-27 | 2011-10-28 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE PARTICULARLY FOR A MOTOR VEHICLE STARTER |
| WO2011135244A1 (en) * | 2010-04-27 | 2011-11-03 | Valeo Equipements Electriques Moteur | Rotating electric machine in particular for a motor vehicle starter |
| US9450461B2 (en) | 2010-04-27 | 2016-09-20 | Valeo Equipements Electriques Moteur | Rotating electrical machine, for starter |
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