JPH0365968U - - Google Patents
Info
- Publication number
- JPH0365968U JPH0365968U JP12819689U JP12819689U JPH0365968U JP H0365968 U JPH0365968 U JP H0365968U JP 12819689 U JP12819689 U JP 12819689U JP 12819689 U JP12819689 U JP 12819689U JP H0365968 U JPH0365968 U JP H0365968U
- Authority
- JP
- Japan
- Prior art keywords
- brushless motor
- iron base
- base substrate
- generating coil
- torque generating
- 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
Description
第１図は本考案の速度検出装置付きブラシレス
モータの断面図、第２図は本考案と速度検出装置
付きブラシレスモータのコイル、ホール素子及び
反射型フオトセンサが配置された鉄ベース基板の
上面図、第３図は本考案の速度検出装置付きブラ
シレスモータの反射パターンが形成されたマグネ
ツト面図、第４図は従来の速度検出装置付きブラ
シレスモータの断面図、第５図は従来の速度検出
装置付きブラシレスモータとコイルとホール素子
が配置された鉄ベース基板の上面図、第６図は従
来の速度検出装置にホール素子を用いたブラシレ
スモータの断面図である。
Ｒ……ロータ部、Ｓ……ステータ部、１……シ
ヤフト、２……ハブ、３……マグネツトヨーク、
４……マグネツト、５……ベアリングホルダ、６
……ベアリング、７……鉄ベース基板、８……ブ
ツシング、９……コイル、１０……ホール素子、
１１……ＦＧマグネツト、１２……ＦＧコイル、
１３……反射板、１４……反射型フオトセンサ。
Fig. 1 is a sectional view of a brushless motor with a speed detection device of the present invention, and Fig. 2 is a top view of an iron base substrate on which the coil, Hall element, and reflective photo sensor of the brushless motor with a speed detection device of the present invention are arranged. Fig. 3 is a view of the magnet surface with a reflection pattern formed on the brushless motor with a speed detection device of the present invention, Fig. 4 is a sectional view of a conventional brushless motor with a speed detection device, and Fig. 5 is a conventional brushless motor with a speed detection device. FIG. 6 is a top view of an iron base board on which a brushless motor, a coil, and a Hall element are arranged, and a sectional view of a brushless motor using a Hall element in a conventional speed detection device. R...Rotor part, S...Stator part, 1...Shaft, 2...Hub, 3...Magnetic yoke,
4...Magnet, 5...Bearing holder, 6
... Bearing, 7 ... Iron base board, 8 ... Bushing, 9 ... Coil, 10 ... Hall element,
11...FG magnet, 12...FG coil,
13...Reflection plate, 14...Reflection type photo sensor.
Claims (1)
と、その鉄ベース基板上に配置されたトルク発生
用コイルに対向する円盤状のマグネツトを有する
ロータ部とからなるブラシレスモータにおいて、
前記トルク発生用コイルと同一平面円周上に反射
型フオトセンサを配置し、対向する前記マグネツ
トの面上に光反射用パターンを形成することを特
徴とする速度検出装置付きブラシレスモータ。 In a brushless motor consisting of a stator section having an iron base substrate that also serves as a magnetic path, and a rotor section having a disk-shaped magnet facing a torque generating coil arranged on the iron base substrate,
A brushless motor with a speed detecting device, characterized in that a reflective photo sensor is arranged on the same plane and circumference as the torque generating coil, and a light reflecting pattern is formed on the opposing surface of the magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12819689U JPH0365968U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12819689U JPH0365968U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365968U true JPH0365968U (en) | 1991-06-26 |
Family
ID=31675915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12819689U Pending JPH0365968U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365968U (en) |
-
1989
- 1989-10-31 JP JP12819689U patent/JPH0365968U/ja active Pending
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