JPS62111779U - - Google Patents
Info
- Publication number
- JPS62111779U JPS62111779U JP20413385U JP20413385U JPS62111779U JP S62111779 U JPS62111779 U JP S62111779U JP 20413385 U JP20413385 U JP 20413385U JP 20413385 U JP20413385 U JP 20413385U JP S62111779 U JPS62111779 U JP S62111779U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotor
- sensing element
- brushless motor
- yoke
- 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 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の一実施例を示す正面断面図、
第２図はその要部の説明図、第３図は他の実施例
を示す説明図、第４図は従来例を示す正面断面図
、第５図は磁石を縮小して示す斜視図、第６図は
第４図のモータの要部の説明図、第７図は従来の
別な構成例を示すブラシレスモータ要部の説明図
である。
１０……ロータヨーク、２０……磁石、２２…
…内周面、２４……外周面、７０……ステータヨ
ーク、８０……駆動コイル、９０……磁気感応素
子。
FIG. 1 is a front sectional view showing an embodiment of the present invention;
Fig. 2 is an explanatory diagram of the main parts, Fig. 3 is an explanatory diagram showing another embodiment, Fig. 4 is a front sectional view showing the conventional example, Fig. 5 is a perspective view showing the magnet in a reduced size, and Fig. 3 is an explanatory diagram showing another embodiment. 6 is an explanatory diagram of the main parts of the motor shown in FIG. 4, and FIG. 7 is an explanatory diagram of the main parts of a brushless motor showing another example of the conventional configuration. 10...Rotor yoke, 20...Magnet, 22...
...Inner circumferential surface, 24... Outer circumferential surface, 70... Stator yoke, 80... Drive coil, 90... Magnetic sensing element.
Claims (1)
ークの内側に固定され、磁気感応素子によつてロ
ータの回転位置を検出して駆動電流を各駆動コイ
ルへ分配する構成のアウターロータ型直流ブラシ
レスモータにおいて、磁気感応素子を該磁石の磁
極の真下に配置し、該磁石の周面に平行な磁束を
検出するように構成するとともに、該磁石の下面
を、ステータヨークの下面およびロータヨークの
下面の少なくとも一方よりも下方に突出したこと
を特徴とする直流ブラシレスモータ。 In an outer rotor type DC brushless motor, a permanent magnet magnetized in the radial direction is fixed inside the rotor yoke, and a magnetic sensing element detects the rotational position of the rotor and distributes drive current to each drive coil. A magnetic sensing element is disposed directly below the magnetic pole of the magnet, and is configured to detect magnetic flux parallel to the circumferential surface of the magnet, and the lower surface of the magnet is positioned below at least one of the lower surface of the stator yoke and the lower surface of the rotor yoke. A DC brushless motor characterized by a downward protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20413385U JPS62111779U (en) | 1985-12-28 | 1985-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20413385U JPS62111779U (en) | 1985-12-28 | 1985-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62111779U true JPS62111779U (en) | 1987-07-16 |
Family
ID=31170104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20413385U Pending JPS62111779U (en) | 1985-12-28 | 1985-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62111779U (en) |
-
1985
- 1985-12-28 JP JP20413385U patent/JPS62111779U/ja active Pending