JPH0374101U - - Google Patents
Info
- Publication number
- JPH0374101U JPH0374101U JP1989134326U JP13432689U JPH0374101U JP H0374101 U JPH0374101 U JP H0374101U JP 1989134326 U JP1989134326 U JP 1989134326U JP 13432689 U JP13432689 U JP 13432689U JP H0374101 U JPH0374101 U JP H0374101U
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- drives
- reverse
- circuit
- semiconductor switch
- 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.)
- Granted
Links
- 239000004065 semiconductor Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Description
第１図はこの電動乗用車の駆動を示すブロツク
図、第２図は駆動用の半導体スイツチ取り付けの
平面図、第３図、第４図は電動乗用車の側面図、
平面図、第５図はこの電動乗用車の制動を示すブ
ロツク図、第６図はこれを制御するためのフロー
チヤートである。
符号、１２……前後進切換スイツチ、１６……
直流モータ、１７……半導体スイツチ、１８……
半導体スイツチ、１９……ドライブ回路、２０…
…半導体スイツチ、２１……半導体スイツチ、２
２……リバース回路、２４……制御装置。
Fig. 1 is a block diagram showing the drive of this electric passenger car, Fig. 2 is a plan view of the installation of a semiconductor switch for driving, Figs. 3 and 4 are side views of the electric passenger car,
The plan view, FIG. 5 is a block diagram showing the braking of this electric passenger vehicle, and FIG. 6 is a flowchart for controlling this. Code, 12... Forward/forward switch, 16...
DC motor, 17...Semiconductor switch, 18...
Semiconductor switch, 19...Drive circuit, 20...
...Semiconductor switch, 21...Semiconductor switch, 2
2... Reverse circuit, 24... Control device.
Claims (1)
して直流モータ１６を正回転に駆動するドライブ
回路１９と逆回転に駆動するリバース回路２２を
構成し、前後進切換スイツチ１２でこれら両回路
１９，２２を切り換える電動乗用車において、こ
の両回路１９，２２を駆動する制御装置２４を、
前記いずれかの回路１９，２２中の半導体スイツ
チ１７，１８，２０，２１が過熱したときに前記
前後進切換スイツチ１２を切り換えると、前記他
の回路１９，２２中の半導体スイツチ１７，１８
，２０，２１が接続し、この回路１９，２２に電
流が流れるべく構成してなる電動乗用車の過負荷
安全装置。 Semiconductor switches 17, 18, 20, and 21 are inserted to constitute a drive circuit 19 that drives the DC motor 16 in forward rotation and a reverse circuit 22 that drives it in reverse rotation. In an electric passenger car that switches between circuits 19 and 22, the control device 24 that drives both circuits 19 and 22 is
When the semiconductor switch 17, 18, 20, 21 in one of the circuits 19, 22 is overheated and the forward/reverse changeover switch 12 is switched, the semiconductor switch 17, 18 in the other circuit 19, 22 is switched.
, 20, 21 are connected to each other, and current flows through these circuits 19, 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989134326U JP2512975Y2 (en) | 1989-11-18 | 1989-11-18 | Overload safety device for electric passenger cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989134326U JP2512975Y2 (en) | 1989-11-18 | 1989-11-18 | Overload safety device for electric passenger cars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0374101U true JPH0374101U (en) | 1991-07-25 |
| JP2512975Y2 JP2512975Y2 (en) | 1996-10-02 |
Family
ID=31681670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989134326U Expired - Lifetime JP2512975Y2 (en) | 1989-11-18 | 1989-11-18 | Overload safety device for electric passenger cars |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2512975Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386424A (en) * | 1977-01-10 | 1978-07-29 | Mitsubishi Electric Corp | Speed controlling device for elevator |
-
1989
- 1989-11-18 JP JP1989134326U patent/JP2512975Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386424A (en) * | 1977-01-10 | 1978-07-29 | Mitsubishi Electric Corp | Speed controlling device for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2512975Y2 (en) | 1996-10-02 |