JPH02146995U - - Google Patents
Info
- Publication number
- JPH02146995U JPH02146995U JP1989055407U JP5540789U JPH02146995U JP H02146995 U JPH02146995 U JP H02146995U JP 1989055407 U JP1989055407 U JP 1989055407U JP 5540789 U JP5540789 U JP 5540789U JP H02146995 U JPH02146995 U JP H02146995U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- motor
- arc extinguishing
- extinguishing element
- commutator
- 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
- 238000010892 electric spark Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Control Of Direct Current Motors (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
Description
第１図は本考案の実施例における回転子の整流
子近傍を示す一部断面側面図、第２図は第１図に
おけるＡ−Ａ矢視図、第３図は第１図および第２
図に示す回転子の電気的結線図、第４図は速度制
御装置付小型モータの対負荷特性図、第５図は従
来の直流モータの制御手段の例を示す説明図、第
６図はバリスタの電圧−電流特性図である。
４……整流子片、８……バリスタ、９……コン
デンサ、１０……回転子巻線、１２……速度制御
用ＩＣ、１３，１４……抵抗。
FIG. 1 is a partially sectional side view showing the vicinity of the commutator of the rotor in an embodiment of the present invention, FIG. 2 is a view taken along arrow A-A in FIG. 1, and FIG.
The electrical connection diagram of the rotor shown in the figure, Figure 4 is a load characteristic diagram of a small motor with a speed control device, Figure 5 is an explanatory diagram showing an example of a conventional DC motor control means, and Figure 6 is a varistor. FIG. 3 is a voltage-current characteristic diagram of FIG. 4... Commutator piece, 8... Varistor, 9... Capacitor, 10... Rotor winding, 12... Speed control IC, 13, 14... Resistor.
Claims (1)
を抑制するための消弧用素子を備えると共に、第
１の端子と第２の端子との間に基準電圧を発生さ
せ、かつ第１の端子には第２の端子に流れる電流
に比例する電流が流れるように構成されたモータ
速度制御用ＩＣを備え、このＩＣの外部受動回路
素子としてモータ電源端子と前記第１の端子との
間にインピーダンス素子を接続し、前記第１の端
子と第２の端子との間に抵抗を接続し、モータ内
部抵抗と絶対値が等しい負性内部抵抗を有する定
電圧源として動作するように構成された速度制御
装置を備えた速度制御装置付小型モータにおいて
、消弧用素子と整流子との間に消弧用素子を直流
回路から分離する手段を設けたことを特徴とする
速度制御装置付小型モータ。 An arc extinguishing element is provided for suppressing electric sparks generated between the commutator and the power supply brush, and a reference voltage is generated between the first terminal and the second terminal, and the first terminal includes a motor speed control IC configured to flow a current proportional to the current flowing through a second terminal, and an impedance between the motor power supply terminal and the first terminal as an external passive circuit element of this IC. a resistor connected between the first terminal and the second terminal, and configured to operate as a constant voltage source having a negative internal resistance whose absolute value is equal to the motor internal resistance. A small motor with a speed control device equipped with a control device, characterized in that a means for separating the arc extinguishing element from the DC circuit is provided between the arc extinguishing element and the commutator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989055407U JPH02146995U (en) | 1989-05-15 | 1989-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989055407U JPH02146995U (en) | 1989-05-15 | 1989-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02146995U true JPH02146995U (en) | 1990-12-13 |
Family
ID=31578329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989055407U Pending JPH02146995U (en) | 1989-05-15 | 1989-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02146995U (en) |
-
1989
- 1989-05-15 JP JP1989055407U patent/JPH02146995U/ja active Pending
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