JPS6416134U - - Google Patents
Info
- Publication number
- JPS6416134U JPS6416134U JP9534487U JP9534487U JPS6416134U JP S6416134 U JPS6416134 U JP S6416134U JP 9534487 U JP9534487 U JP 9534487U JP 9534487 U JP9534487 U JP 9534487U JP S6416134 U JPS6416134 U JP S6416134U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- motor
- switch means
- resistor
- power line
- 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 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Protection Of Generators And Motors (AREA)
Description
第1図は本考案のクレーム対応図、第2図は本
考案に係る一実施例の保護装置の回路図、第3図
は同回路における波形を示す図である。
A……電源、B……直流モータ、C……スイツ
チ手段、D……抵抗、E……回転数検知手段、F
……駆動手段、1……スタータモータ、2……パ
ルス発生器、3……ダイオード、4……抵抗、5
……トランジスタ、6……抵抗、7……コンデン
サC、8……比較器、9,10……抵抗、11…
…ダイオード、12……コンデンサ、13……抵
抗、14……トランジスタ、15……リレーコイ
ル、16……接点、17……抵抗R、20……電
源、21……電力線。
FIG. 1 is a diagram corresponding to claims of the present invention, FIG. 2 is a circuit diagram of a protection device according to an embodiment of the present invention, and FIG. 3 is a diagram showing waveforms in the same circuit. A...Power supply, B...DC motor, C...Switch means, D...Resistance, E...Rotation speed detection means, F
... Drive means, 1 ... Starter motor, 2 ... Pulse generator, 3 ... Diode, 4 ... Resistor, 5
...Transistor, 6...Resistor, 7...Capacitor C, 8...Comparator, 9,10...Resistor, 11...
... Diode, 12 ... Capacitor, 13 ... Resistor, 14 ... Transistor, 15 ... Relay coil, 16 ... Contact, 17 ... Resistor R, 20 ... Power supply, 21 ... Power line.
Claims (1)
給する電源からの電力線に介装されたスイツチ手
段と、同スイツチ手段と並列に電力線に接続され
た抵抗と、該直流モータの所定回転数を検知する
回転数検知手段と、同回転数検知手段の検知信号
に基づき前記スイツチ手段を動作させる駆動手段
とを備え、直流モータの回転数が所定回転数以下
であるときは、回転数検出手段がこれを検知し、
駆動手段によりスイツチ手段をオフして電流が抵
抗を通るようにすることを特徴とする直流モータ
の保護装置。 In a DC motor, there is a switch means interposed in a power line from a power source that supplies power to the DC yawter, a resistor connected to the power line in parallel with the switch means, and a rotation detecting a predetermined rotation speed of the DC motor. and a drive means for operating the switch means based on a detection signal from the rotation speed detection means, and when the rotation speed of the DC motor is below a predetermined rotation speed, the rotation speed detection means detects this. death,
A protection device for a DC motor, characterized in that a drive means turns off a switch means so that current passes through a resistor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9534487U JPS6416134U (en) | 1987-06-23 | 1987-06-23 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9534487U JPS6416134U (en) | 1987-06-23 | 1987-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6416134U true JPS6416134U (en) | 1989-01-26 |
Family
ID=31320008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9534487U Pending JPS6416134U (en) | 1987-06-23 | 1987-06-23 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6416134U (en) |
-
1987
- 1987-06-23 JP JP9534487U patent/JPS6416134U/ja active Pending