JPS62165769U - - Google Patents
Info
- Publication number
- JPS62165769U JPS62165769U JP5444686U JP5444686U JPS62165769U JP S62165769 U JPS62165769 U JP S62165769U JP 5444686 U JP5444686 U JP 5444686U JP 5444686 U JP5444686 U JP 5444686U JP S62165769 U JPS62165769 U JP S62165769U
- Authority
- JP
- Japan
- Prior art keywords
- rotor magnet
- magnetic
- sensing element
- brushless motor
- drive coil
- 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
- 230000004907 flux Effects 0.000 claims description 2
- 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 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Windings For Motors And Generators (AREA)
Description
第１図は本考案の要部断面図。第２図は第１図
におけるロータ磁石側より見たステータヨークの
平面図。第３図はロータ磁石に対する磁気感応素
子の位置による出力波形図。第４図はロータ磁石
の正弦波着磁とフル着磁された場合の台形波との
磁束差を示す図。第５図はロータ磁石内周部の拡
大断面図。
４……ロータ磁石、５……シート状コイル、８
……磁気感応素子、１４……台形波、１５……正
弦波。
FIG. 1 is a cross-sectional view of the main parts of the present invention. FIG. 2 is a plan view of the stator yoke seen from the rotor magnet side in FIG. 1. FIG. 3 is an output waveform diagram depending on the position of the magnetic sensing element with respect to the rotor magnet. FIG. 4 is a diagram showing the magnetic flux difference between the sinusoidal wave magnetization of the rotor magnet and the trapezoidal wave when the rotor magnet is fully magnetized. FIG. 5 is an enlarged sectional view of the inner circumference of the rotor magnet. 4...Rotor magnet, 5...Sheet coil, 8
...Magnetic sensing element, 14...Trapezoidal wave, 15...Sine wave.
Claims (1)
ート状の駆動コイル５とロータ磁石の磁束状態を
検出し駆動コイルを制御する磁気感応素子８とか
らなる軸方向面対向型ブラシレスモータにおいて
、前記磁気感応素子８をフル着磁されたロータ磁
石４の内周端部９に配置し、磁気感応素子８の出
力としてほぼ近似な正弦波を得るようにしたこと
を特徴とするブラシレスモータ。 In an axial surface-facing brushless motor comprising a rotor magnet 4, a sheet-shaped drive coil 5 that faces the rotor magnet, and a magnetically sensitive element 8 that detects the magnetic flux state of the rotor magnet and controls the drive coil, the magnetic A brushless motor characterized in that a sensing element 8 is disposed at an inner circumferential end 9 of a fully magnetized rotor magnet 4, and a substantially approximate sine wave is obtained as an output of the magnetic sensing element 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5444686U JPS62165769U (en) | 1986-04-11 | 1986-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5444686U JPS62165769U (en) | 1986-04-11 | 1986-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62165769U true JPS62165769U (en) | 1987-10-21 |
Family
ID=30881447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5444686U Pending JPS62165769U (en) | 1986-04-11 | 1986-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62165769U (en) |
-
1986
- 1986-04-11 JP JP5444686U patent/JPS62165769U/ja active Pending