JPS6321467U - - Google Patents
Info
- Publication number
- JPS6321467U JPS6321467U JP11201686U JP11201686U JPS6321467U JP S6321467 U JPS6321467 U JP S6321467U JP 11201686 U JP11201686 U JP 11201686U JP 11201686 U JP11201686 U JP 11201686U JP S6321467 U JPS6321467 U JP S6321467U
- Authority
- JP
- Japan
- Prior art keywords
- brush
- electric motor
- armature
- commutator
- outer circumferential
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Motor Or Generator Current Collectors (AREA)
Description
第１図は本考案の一実施例を示す電動モータの
ブラシ部を示す平面図、第２図は同上実施例にお
ける摩耗検出回路を示す回路図、第３図は同上実
施例におけるブラシ変位置と圧電素子抵抗値との
関係を示すグラフ、第４図は従来の電動モータの
ブラシ部を示す平面図である。
１……アーマチユア、２……コンミテータ、３
……ブラシ、５……コイルスプリング、１５，１
６……圧電素子。
FIG. 1 is a plan view showing a brush part of an electric motor according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing a wear detection circuit in the same embodiment, and FIG. 3 is a diagram showing brush displacement in the above embodiment. A graph showing the relationship between piezoelectric element resistance and FIG. 4 is a plan view showing a brush portion of a conventional electric motor. 1... Armature, 2... Commitator, 3
... Brush, 5 ... Coil spring, 15,1
6...Piezoelectric element.
Claims (1)
ーマチユアと共に回転するコンミテータの外周壁
に対してスプリングによつて押圧接触されるブラ
シを備えた電動モータにおいて、前記ブラシのコ
ンミテータの外周壁に対する変位置を検出するブ
ラシ変位量検出手段を備えてなる電動モータのブ
ラシ摩耗検出装置。 In an electric motor equipped with a brush that is provided at an end of an armature of the electric motor and is pressed into contact with an outer circumferential wall of a commutator that rotates together with the armature by a spring, displacement of the brush with respect to the outer circumferential wall of a commutator is detected. A brush wear detection device for an electric motor, comprising brush displacement amount detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11201686U JPS6321467U (en) | 1986-07-23 | 1986-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11201686U JPS6321467U (en) | 1986-07-23 | 1986-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6321467U true JPS6321467U (en) | 1988-02-12 |
Family
ID=30992488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11201686U Pending JPS6321467U (en) | 1986-07-23 | 1986-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6321467U (en) |
-
1986
- 1986-07-23 JP JP11201686U patent/JPS6321467U/ja active Pending