JPH01252147A - Electric motor - Google Patents
Electric motorInfo
- Publication number
- JPH01252147A JPH01252147A JP63076302A JP7630288A JPH01252147A JP H01252147 A JPH01252147 A JP H01252147A JP 63076302 A JP63076302 A JP 63076302A JP 7630288 A JP7630288 A JP 7630288A JP H01252147 A JPH01252147 A JP H01252147A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic poles
- disc
- inner diameter
- permanent magnet
- diameter side
- 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 claims abstract description 8
- 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 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000005415 magnetization Effects 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、永久磁石を用いて磁極を形成する電動機の構
成に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to the construction of an electric motor that uses permanent magnets to form magnetic poles.
「従来の技術」
永久磁石を用いて磁極を形成する電動機は、永久磁石に
必要な磁極が形成できるように着磁することが一般的な
方法である。"Prior Art" A common method for electric motors that use permanent magnets to form magnetic poles is to magnetize the permanent magnets so that the necessary magnetic poles can be formed.
しかし、複雑な磁極の構成が必要な場合、着磁が困難に
なったり、磁極自体を永久磁石で構成することが機械的
強度の上で困難になったりするといった問題を有してい
た。However, when a complicated magnetic pole configuration is required, there are problems in that magnetization becomes difficult and it becomes difficult to configure the magnetic pole itself with a permanent magnet due to mechanical strength.
そこで、特開昭６１−２０３８５３号公報に記載される
ように一部に永久磁石を備え、鋼板を折り曲げて磁極を
構成するものが試みられている。Therefore, as described in Japanese Patent Application Laid-Open No. 61-203853, attempts have been made to partially include a permanent magnet and to construct magnetic poles by bending a steel plate.
「発明が解決しようとする問題点」
しかしながら、特開昭６１−２０３８５３号公報に記載
されるような構成では、径方向の寸法が大きくなり、ま
た、永久磁石の形状が筒状になるなめ、ロータ部材に装
着する際、表金精度を得ることが難しく、製作上の都合
が悪いといった問題点を有していた。"Problems to be Solved by the Invention" However, in the configuration described in JP-A-61-203853, the radial dimension becomes large and the shape of the permanent magnet becomes cylindrical. When attached to the rotor member, it is difficult to obtain the precision of the cover plate, and there are problems in that it is inconvenient for manufacturing.
本発明は、このような事情に鑑みてなされたものであり
、径方向に大きくならず、製作が容易な構成の永久磁石
を用いた電動機を提供することを目的としている。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an electric motor using permanent magnets that does not become large in the radial direction and is easy to manufacture.
ｒ問題点を解決するための手段」
本発明は、２枚のドーナツ状の円板で永久磁石を挟持し
、それぞれの円板の内径側に交互に突出するクシ状の突
出部を形成すると共に軸方向へ延設して磁極を形成し、
この磁極を非磁性体を介して軸に固定して回転子を形成
したことによって問題点を解決している。``Means for Solving Problems'' The present invention involves sandwiching a permanent magnet between two donut-shaped discs, forming comb-shaped protrusions that alternately protrude on the inner diameter side of each disc, and extending in the axial direction to form magnetic poles,
This problem is solved by fixing these magnetic poles to the shaft via a non-magnetic material to form a rotor.
「作用」
永久磁石から発生する磁束は、磁極に分散し、固定子に
作用する。"Action" The magnetic flux generated from the permanent magnet is dispersed to the magnetic poles and acts on the stator.
そして、この際、磁極の内径側は、非磁性体で形成され
ているため、固定子に効率良く作用する。At this time, since the inner diameter side of the magnetic pole is made of a non-magnetic material, it acts efficiently on the stator.
さらに、磁極の形成は、鋼板をプレスマークして形成す
ることができ、また、永久磁石をドーナツ状の円板の部
分で保持することができるため、永久磁石の取り付けが
容易であり、しかも、ドーナツ状の永久磁石に軸方向の
着磁をすることになるため、着磁が容易になる。Furthermore, the magnetic poles can be formed by press marking a steel plate, and the permanent magnet can be held by the donut-shaped disc portion, making it easy to attach the permanent magnet. Since the donut-shaped permanent magnet is magnetized in the axial direction, magnetization becomes easier.
「実施例」
本発明を図面に示されな一実施例に基づいて説明すると
、第１図は、本発明の要部縦断面図、第２図は、その要
部の半断面した斜視図である。``Example'' The present invention will be described based on an example not shown in the drawings. FIG. 1 is a longitudinal sectional view of the main part of the invention, and FIG. 2 is a perspective view of the main part in half section. be.
第１図および第２図において、電動機は、デ４板をブレ
スワークしてドーナツ状の円板１を形成すると共に円板
１の内径側をクシ状に突出させて突出部による磁極２を
形成している。In FIGS. 1 and 2, the electric motor is constructed by breathworking D4 plates to form a donut-shaped disk 1, and at the same time, the inner diameter side of the disk 1 is made to protrude in a comb shape to form a magnetic pole 2 by the protrusion. are doing.
そして、円板１と対向するように他の円板３を形成し、
同じく内径側をクシ状の突出部を成形して磁極４を形成
する。Then, another disc 3 is formed to face the disc 1,
Similarly, the magnetic pole 4 is formed by forming a comb-shaped protrusion on the inner diameter side.
さらに、磁極２．４は、それぞれ軸方向に延設され交互
に配設されるように構成されている。Furthermore, the magnetic poles 2.4 are arranged in such a way that they each extend in the axial direction and are arranged alternately.
また、円板１．３の間に永久磁石５が介在されており、
永久磁石５は、軸方向に着磁されている。Further, a permanent magnet 5 is interposed between the discs 1.3,
The permanent magnet 5 is magnetized in the axial direction.
磁極２．４は、それぞれ内径側に非磁性体６を介して軸
７に取り付けられている。The magnetic poles 2.4 are each attached to the shaft 7 via a non-magnetic material 6 on the inner diameter side.
そして、磁ａｉ２．４の外周側には、固定子８が構成さ
れており、図示されない巻線が施され給電されるように
構成されている。A stator 8 is configured on the outer peripheral side of the magnet ai 2.4, and is configured to be provided with windings (not shown) and to be supplied with power.
このような構成において、電動機は、磁極２．４は、そ
れぞれ鋼板をプレースワークで成形して形成し、円板１
．３の部分で永久磁石５を挟持して構成する。In such a configuration, the magnetic poles 2.4 of the electric motor are each formed by forming a steel plate by placework, and the disc 1.
．． A permanent magnet 5 is sandwiched between the parts 3 and 3.
そして、軸７に非磁性体６を介在して構成し、回転子と
する。A rotor is constructed by interposing a non-magnetic material 6 on the shaft 7.
この場合、非磁性体６は、樹脂などで構成され、磁極２
．４を軸７に固定することができるものであれば都合が
良い。In this case, the non-magnetic material 6 is made of resin or the like, and the magnetic pole 2
．． 4 can be fixed to the shaft 7.
さらに、永久磁石５から発生する磁束は、磁極２．４か
ら固定子８に作用することになり、固定子８に給電され
ると軸７を回転させることができる。Furthermore, the magnetic flux generated from the permanent magnet 5 acts on the stator 8 from the magnetic poles 2.4, and when the stator 8 is supplied with electricity, the shaft 7 can be rotated.
このような磁極２．４の固定子８に作用する磁束は、永
久磁石５の磁束の流れる方向の面積が大きくできるため
、十分な磁束が得られ、トルクに寄与することができる
。The magnetic flux acting on the stator 8 of the magnetic poles 2.4 can have a large area in the direction in which the magnetic flux of the permanent magnet 5 flows, so that sufficient magnetic flux can be obtained and can contribute to torque.
また、永久磁石５め外径を適当にすることにより、外径
を大きくすることなく、回転子を構成することができ都
合がよい。Furthermore, by appropriately setting the outer diameter of the fifth permanent magnet, the rotor can be constructed without increasing the outer diameter, which is convenient.
「発明の効果」
本発明によれば、外径を大きくすることなく十分な磁束
の得られる回転子を構成することができ、磁極の構成が
複雑になっても鋼板の成形で製作できるため、容易に回
転子を構成することができ、その効果は極めて大きい。"Effects of the Invention" According to the present invention, it is possible to construct a rotor that can obtain sufficient magnetic flux without increasing the outer diameter, and even if the configuration of magnetic poles is complicated, it can be manufactured by molding steel plates. The rotor can be easily configured, and the effect is extremely large.
第１図は、本発明の要部縦断面図、第２図は、その要部
の半断面した斜視図である。
１．３・・・円板、 ２．４・・・磁極、 ５・・・永
久磁石、 ６・・・非磁性体、 ７・・・軸。FIG. 1 is a longitudinal sectional view of the main part of the present invention, and FIG. 2 is a perspective view of the main part in half section. 1.3...Disc, 2.4...Magnetic pole, 5...Permanent magnet, 6...Nonmagnetic material, 7...Axis.
Claims (1)
の円板の内径側に交互に突出するクシ状の突出部を形成
すると共に軸方向へ延設して磁極を形成し、この磁極を
非磁性体を介して軸に固定して回転子を形成したことを
特徴とする電動機。A permanent magnet is sandwiched between two donut-shaped disks, and comb-shaped protrusions are formed alternately on the inner diameter side of each disk and extend in the axial direction to form magnetic poles. An electric motor is characterized in that a rotor is formed by fixing to a shaft via a non-magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63076302A JPH01252147A (en) | 1988-03-31 | 1988-03-31 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63076302A JPH01252147A (en) | 1988-03-31 | 1988-03-31 | Electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01252147A true JPH01252147A (en) | 1989-10-06 |
Family
ID=13601576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63076302A Pending JPH01252147A (en) | 1988-03-31 | 1988-03-31 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01252147A (en) |
-
1988
- 1988-03-31 JP JP63076302A patent/JPH01252147A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5369325A (en) | Rotor for brushless electromotor and method for making same | |
| US5508576A (en) | Rotor for brushless electromotor | |
| JPH0624417B2 (en) | Torque motor | |
| JP2550980Y2 (en) | Motor rotor | |
| JP2530940Y2 (en) | Permanent magnet type rotor of rotating electric machine | |
| JPS5989560A (en) | Permanent magnet field type dc machine | |
| JPH01252147A (en) | Electric motor | |
| US6920683B2 (en) | Process for producing a rotor assembly of a stepping motor | |
| JPH02303351A (en) | Small-sized brushless motor | |
| JPS5583449A (en) | Motor | |
| JP2515194Y2 (en) | Flat lightweight rotor type PM step motor | |
| JPH0644303Y2 (en) | Magnetic circuit | |
| JPH02228241A (en) | Stepping motor | |
| JPS61176977U (en) | ||
| JPH073807Y2 (en) | Rotating machine rotor | |
| JPH0628947Y2 (en) | Axial type step motor | |
| JPS60257750A (en) | Motor | |
| JPS61199455A (en) | Stepping motor | |
| JPS5812562A (en) | Rotor with permanent magnet | |
| JPS63129852A (en) | Stepping motor | |
| JPH0424947B2 (en) | ||
| JPH10229669A (en) | Motor | |
| JPH06169559A (en) | Rotor for stepping motor | |
| JPH0253274U (en) | ||
| JPS6066658A (en) | Ac servo motor |