CN204304853U - A kind of elevator starts and brake control circuit - Google Patents
A kind of elevator starts and brake control circuit Download PDFInfo
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- CN204304853U CN204304853U CN201420813828.4U CN201420813828U CN204304853U CN 204304853 U CN204304853 U CN 204304853U CN 201420813828 U CN201420813828 U CN 201420813828U CN 204304853 U CN204304853 U CN 204304853U
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Abstract
The utility model discloses a kind of elevator to start and brake control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3.The utility model elevator starts and brake control circuit passes through switch element break-make direct voltage, the mode changing make-and-break time ratio changes voltage swing, the rotating speed of elevator motor is controlled with this, this control mode can be level and smooth change elevator motor rotating speed, even reach the effect of variable frequency control, start and braking time passenger can not be made to feel uncomfortable, function-stable, structure is simple, cheap, is applicable to promoting the use of.
Description
Technical field
The utility model relates to communal facility field, and specifically a kind of elevator starts and brake control circuit.
Background technology
Electric machine speed regulation actuator on existing market is mainly realized by the mechanical structure of complexity, advantage of lower cost, but there is the integrity problem such as response lag, complex structure, on market, most electronic speed regulation actuator controls the processing mode all extremely complexity of elevator motor rotating speed by gathering tach signal, and elevator all can allow people feel very uncomfortable in startup with when stopping mostly, and electric circuit electronics technical element used is many, control complicated, cost is very high.
Utility model content
The purpose of this utility model is that the elevator providing a kind of smooth speed control, structure simple, with low cost starts and brake control circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of elevator starts and brake control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3, described resistance R1 one end connects power supply VCC respectively, chip U1 pin 4, chip U1 pin 8, resistance R3, resistance R4, resistance R5, photoelectrical coupler U3 pin 1, chip U2 pin 4 and chip U2 pin 8, the resistance R1 other end connects electric capacity C1 and chip U1 pin 2 respectively, chip U1 pin 1 connects electric capacity C2 and ground connection, the electric capacity C2 other end connects chip U1 pin 5, the described resistance R4 other end connects ground capacity C3, chip U2 pin 1 connects electric capacity C4 and ground connection, chip U2 pin 5 connects the electric capacity C4 other end, chip U2 pin 3 is the contact resistance R5 other end and not gate F1 input respectively, not gate F1 output connects photoelectrical coupler U3 pin 2, photoelectrical coupler U3 pin 3 connecting triode VT1 base stage triode VT1 collector electrode connects diode D1 negative pole and resistance R7 respectively, , described diode D1 positive pole connects diode D2 positive pole and electric capacity C6 respectively, electric capacity C6 other end connecting triode VT4 base stage, triode VT4 collector electrode connects diode D2 negative pole and resistance R11 respectively, the resistance R11 other end is contact resistance R13 respectively, triode VT5 base stage, diode D3 negative pole and triode VT3 emitter, triode VT3 base stage is by resistance R9 connecting triode VT2 collector electrode, triode VT2 emitter is the contact resistance R6 other end respectively, resistance R10 and rectification filter circuit output end 1, described triode VT4 emitter is connecting triode VT5 base stage and resistance R12 respectively, the resistance R12 other end connects rectification filter circuit output end 2, described triode VT5 collector electrode is contact resistance R15 respectively, diode D5 positive pole and diode D4 negative pole, diode D4 positive pole is connecting triode VT6 emitter respectively, resistance R14, diode D6 negative pole and motor M, the resistance R14 other end is connecting triode VT5 emitter respectively, triode VT6 base stage and diode D3 positive pole, described diode D5 negative pole is the contact resistance R15 other end and electric capacity C7 respectively, electric capacity C7 other end contact resistance R8, the resistance R8 other end connects photoelectrical coupler U3 pin 4 and electric capacity C5 respectively, the electric capacity C5 other end is connecting triode VT1 emitter and triode VT5 emitter respectively, described diode D6 positive pole connects the motor M other end.
As further program of the utility model: described chip U1 and chip U2 model are MC14046.
As the utility model further scheme: described photoelectrical coupler U3 model is PC817A.
Compared with prior art, the beneficial effects of the utility model are: the utility model elevator starts and brake control circuit passes through switch element break-make direct voltage, the mode changing make-and-break time ratio changes voltage swing, controls the rotating speed of elevator motor, the change elevator motor rotating speed that this control mode can be level and smooth with this, even reach the effect of variable frequency control, passenger can not be made to feel uncomfortable, function-stable when starting and brake, structure is simple, cheap, be applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the startup of a kind of elevator and brake control circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of elevator starts and brake control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3, resistance R1 one end connects power supply VCC respectively, chip U1 pin 4, chip U1 pin 8, resistance R3, resistance R4, resistance R5, photoelectrical coupler U3 pin 1, chip U2 pin 4 and chip U2 pin 8, the resistance R1 other end connects electric capacity C1 and chip U1 pin 2 respectively, chip U1 pin 1 connects electric capacity C2 and ground connection, the electric capacity C2 other end connects chip U1 pin 5, the resistance R4 other end connects ground capacity C3, chip U2 pin 1 connects electric capacity C4 and ground connection, chip U2 pin 5 connects the electric capacity C4 other end, chip U2 pin 3 is the contact resistance R5 other end and not gate F1 input respectively, not gate F1 output connects photoelectrical coupler U3 pin 2, photoelectrical coupler U3 pin 3 connecting triode VT1 base stage triode VT1 collector electrode connects diode D1 negative pole and resistance R7 respectively, , diode D1 positive pole connects diode D2 positive pole and electric capacity C6 respectively, electric capacity C6 other end connecting triode VT4 base stage, triode VT4 collector electrode connects diode D2 negative pole and resistance R11 respectively, the resistance R11 other end is contact resistance R13 respectively, triode VT5 base stage, diode D3 negative pole and triode VT3 emitter, triode VT3 base stage is by resistance R9 connecting triode VT2 collector electrode, triode VT2 emitter is the contact resistance R6 other end respectively, resistance R10 and rectification filter circuit output end 1, triode VT4 emitter is connecting triode VT5 base stage and resistance R12 respectively, the resistance R12 other end connects rectification filter circuit output end 2, triode VT5 collector electrode is contact resistance R15 respectively, diode D5 positive pole and diode D4 negative pole, diode D4 positive pole is connecting triode VT6 emitter respectively, resistance R14, diode D6 negative pole and motor M, the resistance R14 other end is connecting triode VT5 emitter respectively, triode VT6 base stage and diode D3 positive pole, diode D5 negative pole is the contact resistance R15 other end and electric capacity C7 respectively, electric capacity C7 other end contact resistance R8, the resistance R8 other end connects photoelectrical coupler U3 pin 4 and electric capacity C5 respectively, the electric capacity C5 other end is connecting triode VT1 emitter and triode VT5 emitter respectively, diode D6 positive pole connects the motor M other end.
Chip U1 and chip U2 model are MC14046.
Photoelectrical coupler U3 model is PC817A.
Operation principle of the present utility model is: refer to Fig. 1, chip U1 is oscillator, chip U2 is monostable multivibrator, control signal controls the power transistor module comprising triode VT5 and triode VT6 after photoelectrical coupler U3, triode VT2 ~ VT4 amplify, the voltage on elevator motor M is added in by power transistor module, in the power-off time controlling break-make, electric current flows through sustained diode 6 and continues circulation, smoothly changes elevator motor M rotating speed with this.The utility model circuit can not make passenger feel uncomfortable, function-stable when starting and brake, and structure is simple, cheap, is applicable to promoting the use of.
Claims (3)
1. an elevator starts and brake control circuit, comprise chip U1, chip U2, resistance R1, current rectifying and wave filtering circuit and photoelectrical coupler U3, it is characterized in that, described resistance R1 one end connects power supply VCC respectively, chip U1 pin 4, chip U1 pin 8, resistance R3, resistance R4, resistance R5, photoelectrical coupler U3 pin 1, chip U2 pin 4 and chip U2 pin 8, the resistance R1 other end connects electric capacity C1 and chip U1 pin 2 respectively, chip U1 pin 1 connects electric capacity C2 and ground connection, the electric capacity C2 other end connects chip U1 pin 5, the described resistance R4 other end connects ground capacity C3, chip U2 pin 1 connects electric capacity C4 and ground connection, chip U2 pin 5 connects the electric capacity C4 other end, chip U2 pin 3 is the contact resistance R5 other end and not gate F1 input respectively, not gate F1 output connects photoelectrical coupler U3 pin 2, photoelectrical coupler U3 pin 3 connecting triode VT1 base stage triode VT1 collector electrode connects diode D1 negative pole and resistance R7 respectively, described diode D1 positive pole connects diode D2 positive pole and electric capacity C6 respectively, electric capacity C6 other end connecting triode VT4 base stage, triode VT4 collector electrode connects diode D2 negative pole and resistance R11 respectively, the resistance R11 other end is contact resistance R13 respectively, triode VT5 base stage, diode D3 negative pole and triode VT3 emitter, triode VT3 base stage is by resistance R9 connecting triode VT2 collector electrode, triode VT2 emitter is the contact resistance R6 other end respectively, resistance R10 and rectification filter circuit output end 1, described triode VT4 emitter is connecting triode VT5 base stage and resistance R12 respectively, the resistance R12 other end connects rectification filter circuit output end 2, described triode VT5 collector electrode is contact resistance R15 respectively, diode D5 positive pole and diode D4 negative pole, diode D4 positive pole is connecting triode VT6 emitter respectively, resistance R14, diode D6 negative pole and motor M, the resistance R14 other end is connecting triode VT5 emitter respectively, triode VT6 base stage and diode D3 positive pole, described diode D5 negative pole is the contact resistance R15 other end and electric capacity C7 respectively, electric capacity C7 other end contact resistance R8, the resistance R8 other end connects photoelectrical coupler U3 pin 4 and electric capacity C5 respectively, the electric capacity C5 other end is connecting triode VT1 emitter and triode VT5 emitter respectively, described diode D6 positive pole connects the motor M other end.
2. elevator according to claim 1 starts and brake control circuit, and it is characterized in that, described chip U1 and chip U2 model are MC14046.
3. elevator according to claim 1 starts and brake control circuit, and it is characterized in that, described photoelectrical coupler U3 model is PC817A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813828.4U CN204304853U (en) | 2014-12-19 | 2014-12-19 | A kind of elevator starts and brake control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813828.4U CN204304853U (en) | 2014-12-19 | 2014-12-19 | A kind of elevator starts and brake control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204304853U true CN204304853U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420813828.4U Active CN204304853U (en) | 2014-12-19 | 2014-12-19 | A kind of elevator starts and brake control circuit |
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| CN (1) | CN204304853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106843302A (en) * | 2016-11-28 | 2017-06-13 | 林桂清 | A kind of agricultural machinery expanding unit |
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2014
- 2014-12-19 CN CN201420813828.4U patent/CN204304853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106843302A (en) * | 2016-11-28 | 2017-06-13 | 林桂清 | A kind of agricultural machinery expanding unit |
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