JPS6341826Y2 - - Google Patents
Info
- Publication number
- JPS6341826Y2 JPS6341826Y2 JP6317682U JP6317682U JPS6341826Y2 JP S6341826 Y2 JPS6341826 Y2 JP S6341826Y2 JP 6317682 U JP6317682 U JP 6317682U JP 6317682 U JP6317682 U JP 6317682U JP S6341826 Y2 JPS6341826 Y2 JP S6341826Y2
- Authority
- JP
- Japan
- Prior art keywords
- field
- armature
- pole
- magnetic
- inner peripheral
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 17
- 239000003302 ferromagnetic material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000005347 demagnetization Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Dc Machiner (AREA)
Description
【考案の詳細な説明】
本考案は、磁石式モモーターの界磁装置の改良
に関する。従来のこの種装置としては、第１図に
示すものがあつた。すなわち、図において、１は
磁石式モーター、２は界磁集合体であつて、軟鋼
板部材で筒状に形成された継鉄３の内周面に接着
剤で固着されている界磁々極４から構成されてい
る。界磁々極４は通常、ストロンチウムフエライ
ト永久磁石材で構成される。５は上記界磁々極４
の内周空間に回転自在に枢着されている電機子で
ある。該電機子５が外部電源装置例えばバツテリ
によつて通電付勢されると、界磁々極４の励磁力
を受けて回転する。減磁特性曲線を示す第２図に
おいて、横軸を磁場の強さ、縦軸を磁束密度にす
ると、界磁々極４が減磁特性を有している場合、
電機子５の通電付勢による電機子反作用磁束が屈
曲点Ｆを越え、図示のＰ点付近まで界磁々極４に
作用し、永久着磁された磁気が不可逆減磁を起す
等の欠点があつた。[Detailed Description of the Invention] The present invention relates to an improvement of a field device for a magnetic motor. A conventional device of this type is shown in FIG. That is, in the figure, 1 is a magnetic motor, 2 is a field assembly, and the field poles are fixed with adhesive to the inner peripheral surface of a cylindrical yoke 3 made of a mild steel plate member. It consists of 4. The field pole 4 is usually constructed of strontium ferrite permanent magnet material. 5 is the above field magnetic pole 4
The armature is rotatably mounted in the inner circumferential space of the armature. When the armature 5 is energized by an external power supply, such as a battery, it rotates under the excitation force of the field poles 4. In FIG. 2 showing the demagnetization characteristic curve, when the horizontal axis is the strength of the magnetic field and the vertical axis is the magnetic flux density, when the field pole 4 has the demagnetization characteristic,
The armature reaction magnetic flux due to the energization of the armature 5 exceeds the bending point F and acts on the field pole 4 up to the vicinity of the point P shown in the figure, causing the permanently magnetized magnetism to irreversibly demagnetize. It was hot.
本考案は、電機子反作用磁束を軽減する強磁性
材料を界磁々極に装着することによつて、従来の
欠点を除去するようにしたものである。 The present invention eliminates the drawbacks of the prior art by attaching a ferromagnetic material to the field poles that reduces the armature reaction flux.
以下本考案の実施例を図について説明する。第
３図ａおよびｂにおいて、１は磁石式モモータ
ー、２は界磁集合体であつて、軟鋼板部材で筒状
に形成された継鉄３の内周面に接着剤で固着され
ている界磁々極４から構成されている。 Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 3a and 3b, 1 is a magnetic motor, and 2 is a field assembly, which is fixed with adhesive to the inner peripheral surface of a cylindrical yoke 3 made of a mild steel plate member. It consists of 4 magnetic poles.
界磁々極４は永久磁石からなつており、電機子
５を構成する電機子鉄心７の軸方向長さより突出
するよう形成されている。この界磁々極４の内周
面に沿つてかつ、界磁々極４の軸方向中央部に電
機子鉄心７より短かい強磁性材料からなる片６を
埋設固着する。上記強磁性材料からなる片６は、
永久磁石より磁気抵抗の小さい軟鉄板が用いられ
る。 The field poles 4 are made of permanent magnets, and are formed to protrude from the axial length of the armature core 7 constituting the armature 5. A piece 6 made of a ferromagnetic material shorter than the armature core 7 is embedded and fixed along the inner circumferential surface of the field magnetic pole 4 and at the axial center of the field magnetic pole 4. The piece 6 made of the ferromagnetic material is
A soft iron plate is used, which has a lower magnetic resistance than a permanent magnet.
なお、図中８は電機子コイル、９は回転軸、１
０は整流子である。 In addition, in the figure, 8 is the armature coil, 9 is the rotating shaft, 1
0 is a commutator.
このように界磁装置は構成されているので、電
機子５が通電付勢されると、界磁々極４の励磁力
を受けて回転するが、電機子５の反作用磁束Φa
は、界磁々極４の軸方向中央部に固着した軟鉄板
６内を流れるので、永久磁石の減磁作用が防止さ
れる。強磁性材料からなる軟鉄板６は、界磁々極
４の軸方向中央部に電機子鉄心７より短かく埋設
されているので、電機子反作用磁束は、軟鉄板で
ループされる。したがつて、永久磁石の軸方向端
部は減磁作用を受けなくなる。 Since the field device is configured in this way, when the armature 5 is energized, it rotates under the excitation force of the field poles 4, but the reaction magnetic flux Φa of the armature 5
flows through the soft iron plate 6 fixed to the axial center of the field pole 4, thereby preventing the demagnetization effect of the permanent magnet. Since the soft iron plate 6 made of a ferromagnetic material is embedded in the axial center of the field pole 4 to be shorter than the armature core 7, the armature reaction magnetic flux is looped through the soft iron plate. Therefore, the axial ends of the permanent magnets are no longer subject to demagnetization.
以上のように本考案によれば、界磁々極の軸方
向中央部内周面に永久磁石より磁気抵抗の小さい
強磁性材料からなる片を固着したので、永久磁石
の減磁が緩和され、電機子特性が高められる効果
がある。 As described above, according to the present invention, a piece made of a ferromagnetic material having a lower magnetic resistance than a permanent magnet is fixed to the inner circumferential surface of the axial center of the field pole, so demagnetization of the permanent magnet is alleviated and electrical equipment It has the effect of enhancing child characteristics.
第１図は従来装置の要部を示す断面図、第２図
は従来装置の減磁特性曲線を示す図、第３図ａ
は、本考案の実施例を示す要部平断面図、第３図
ｂは第３図ａのＡ−Ａ線断面図である。
図において、１……磁石式モモーター、２……
界磁集合体、３……継鉄、４……界磁々極、５…
…電機子、６……軟鉄板、７……電機子鉄心、な
お、図中、同一符号は同一又は相当部分を示す。
Figure 1 is a sectional view showing the main parts of the conventional device, Figure 2 is a diagram showing the demagnetization characteristic curve of the conventional device, and Figure 3 a.
3 is a plan sectional view of a main part showing an embodiment of the present invention, and FIG. 3b is a sectional view taken along the line A--A in FIG. 3a. In the figure, 1... Magnetic motor, 2...
Field assembly, 3...Yoke, 4...Field pole, 5...
... Armature, 6 ... Soft iron plate, 7 ... Armature core. In the drawings, the same reference numerals indicate the same or equivalent parts.
Claims (1)
界磁々極を固着した界磁装置と、界磁装置の内周
空間に回転自在に設けられた電機子とを備え、上
記界磁々極の内周面に沿つて固着させた該界磁々
極より磁気抵抗の小さい強磁性材料を、該界磁々
極の軸方向中央部に配備せしめてなることを特徴
とする磁石式モーターの界磁装置。 It is equipped with a field device in which field poles made of permanent magnets are fixed to the inner peripheral surface of a cylindrical yoke, and an armature rotatably provided in the inner peripheral space of the field device. A magnetic type characterized in that a ferromagnetic material having a lower magnetic resistance than the field pole fixed along the inner circumferential surface of the field pole is arranged in the axial center of the field pole. Motor field device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6317682U JPS58166284U (en) | 1982-04-29 | 1982-04-29 | Magnetic motor field device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6317682U JPS58166284U (en) | 1982-04-29 | 1982-04-29 | Magnetic motor field device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58166284U JPS58166284U (en) | 1983-11-05 |
| JPS6341826Y2 true JPS6341826Y2 (en) | 1988-11-02 |
Family
ID=30073284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6317682U Granted JPS58166284U (en) | 1982-04-29 | 1982-04-29 | Magnetic motor field device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166284U (en) |
-
1982
- 1982-04-29 JP JP6317682U patent/JPS58166284U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58166284U (en) | 1983-11-05 |
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