JPH0217978U - - Google Patents
Info
- Publication number
- JPH0217978U JPH0217978U JP9695988U JP9695988U JPH0217978U JP H0217978 U JPH0217978 U JP H0217978U JP 9695988 U JP9695988 U JP 9695988U JP 9695988 U JP9695988 U JP 9695988U JP H0217978 U JPH0217978 U JP H0217978U
- Authority
- JP
- Japan
- Prior art keywords
- stator coil
- rotary plate
- magnetic rotary
- rotor magnet
- heavier
- 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
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案の実施例を示すものでありブラ
シレスモータの断面図、第２図は磁性回転板の斜
視図、第３図は磁性回転板の等価系における振動
伝達関数を示す線図、第４図は従来のブラシレス
モータの構造を示す断面図、第５図はブラシレス
モータのステータコイルとロータマグネツトを示
す半断面図、第６図は磁性回転板の振動伝達特性
を示す線図、第７図はモータ駆動力の三相駆動力
のリツプルカーブを示す線図である。
３…回転軸、５…ステータコイル、１１…ロー
タマグネツト、１３…支持部材、２４…磁性回転
板、２４ａ…切り欠き。
Fig. 1 shows an embodiment of the present invention, and is a sectional view of a brushless motor, Fig. 2 is a perspective view of a magnetic rotating plate, and Fig. 3 is a diagram showing a vibration transfer function in an equivalent system of the magnetic rotating plate. FIG. 4 is a sectional view showing the structure of a conventional brushless motor, FIG. 5 is a half sectional view showing the stator coil and rotor magnet of the brushless motor, and FIG. 6 is a diagram showing the vibration transmission characteristics of the magnetic rotating plate. FIG. 7 is a diagram showing a ripple curve of three-phase driving force of the motor driving force. 3...Rotating shaft, 5...Stator coil, 11...Rotor magnet, 13...Supporting member, 24...Magnetic rotating plate, 24a...Notch.
Claims (1)
けられているとともに、回転部には、ステータコ
イルに対向するロータマグネツトと、このロータ
マグネツトとは逆側からステータコイルに対向す
る磁性回転板とが支持されているモータにおいて
、前記磁性回転板の質量は、内周部よりも外周部
の方が重くなるように分布していることを特徴と
するモータの騒音防止機構。 ２ 磁性回転板の中央部には切り欠きが形成され
ており、この切り欠きの存在によつて、内周部よ
りも外周部の方が重くなる質量分布とされている
請求項１記載のモータの騒音防止機構。[Claims for Utility Model Registration] 1. A stator coil through which current flows in the radial direction is provided, and the rotating part includes a rotor magnet that faces the stator coil, and a stator coil that faces the stator coil from the opposite side of the rotor magnet. A motor supported by a magnetic rotary plate facing the magnetic rotary plate, wherein the mass of the magnetic rotary plate is distributed such that the outer circumference is heavier than the inner circumference. mechanism. 2. The motor according to claim 1, wherein a notch is formed in the center of the magnetic rotating plate, and the existence of this notch results in a mass distribution in which the outer circumference is heavier than the inner circumference. Noise prevention mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9695988U JPH0217978U (en) | 1988-07-21 | 1988-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9695988U JPH0217978U (en) | 1988-07-21 | 1988-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0217978U true JPH0217978U (en) | 1990-02-06 |
Family
ID=31322125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9695988U Pending JPH0217978U (en) | 1988-07-21 | 1988-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217978U (en) |
-
1988
- 1988-07-21 JP JP9695988U patent/JPH0217978U/ja active Pending
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