Summary of the invention
The purpose of this utility model is for overcoming the deficiencies in the prior art, a kind of residual current circuit breaker with various faults deixis being provided, and when fault takes place, finds the reason that breaks down in the circuit as early as possible for making the maintainer, and the fault Presentation Function is provided.
The technical solution adopted in the utility model is: residual current circuit breaker inside has electric-leakage detection circuit and actuator's actuating circuit, and motor-operating mechanism is fixed on the outer seal of residual current circuit breaker, and controller is fixed on the motor-operating mechanism; Slide block and motor are installed on motor-operating mechanism, slide block is stuck on the handle on the residual current circuit breaker, motor is by the operating grip on the gear drive connection residual current circuit breaker, microprocessor, push-button switch and code switch are set on controller, and microprocessor is electrically connected push-button switch, electrically operated institution actuating circuit, electric-leakage detection circuit, voltage detecting circuit, code switch initialization circuit, actuator's actuating circuit and light-emitting diode respectively.
The beneficial effects of the utility model are:
1, the inner single-chip microcomputer that adopts of residual current circuit breaker is as key control unit; pass through programming technique; make single-chip microcomputer can realize earth leakage protective, under voltage and overvoltage protection and short circuit and overload protection; when fault takes place; single-chip microcomputer picks out the reason that fault takes place; and connect corresponding indicator light, allow it indicate the fault type that occurs in the circuit.
2, after residual current circuit breaker hinders tripping operation for some reason, can indicate the fault that has occurred any type in the circuit.
3, the reason that trips by signal lamp indication residual current circuit breaker is for the problem that solves as early as possible in the circuit provides possibility.
Embodiment
As Fig. 1, the utility model is made up of residual current circuit breaker 1, motor-operating mechanism 2 and controller 3.Wherein residual current circuit breaker 1 inside comprises electric-leakage detection circuit and actuator's actuating circuit, and electric-leakage detection circuit comprises zero sequence current mutual inductor, and zero sequence current mutual inductor is used for leakage current signal is sampled.Motor-operating mechanism 2 is fixed on the outer seal of residual current circuit breaker 1, and controller 3 is fixed on the motor-operating mechanism 2.
As Fig. 2, be provided with handle 4, operating grip 5 and notch 6 in residual current circuit breaker 1.On motor-operating mechanism 2, be provided with slide block 7, hole 8, support 10 and motor 11, wherein, slide block 7 is the bending structure, slide block 7 is stuck on the handle 4 on the residual current circuit breaker 1, can come the handle 4 on the back operations residual current circuit breaker 1, to reach to residual current circuit breaker 1 separating brake, combined floodgate and operating function such as button again.Motor 11 is by the operating grip 5 on the gear drive connection residual current circuit breaker 1.
Zero sequence current mutual inductor is passed to controller 3 through the notch 6 on residual current circuit breaker 1 outer seal with the signal of telecommunication by lead.Motor-operating mechanism 2 is fixed on residual current circuit breaker 1 outer seal by four holes 8, and controller 3 is fixing with the support 10 on the motor-operating mechanism 2 by four jiaos hole 9.Microprocessor 12 is installed on the controller 3.As Fig. 3, microprocessor 12 connects electrically operated institution actuating circuit, electric-leakage detection circuit, voltage detecting circuit, code switch initialization circuit and actuator's actuating circuit of motor 11 respectively.Controller 3 as key control unit, is handled electric leakage signal by microprocessor 12, the actuator of control motor-operating mechanism 2 and residual current circuit breaker 1 inside.Actuating mechanism circuit receives the signal of telecommunication of self-controller 3, promotes residual current circuit breaker 1 tripping operation.Start button switch S 2, trip button switch S 3 and code switch 16 also are installed on controller 3.Microprocessor 12 is electrically connected start button switch S 2, trip button switch S 3, code switch 16 circuit and multiple light-emitting diode respectively.Light-emitting diode 13,17~21 among Fig. 2 is respectively LED1, LED2, LED3, LED4, LED5, the LED6 among Fig. 3, wherein LED1 is the combined floodgate indicator light, LED2 is a power supply indicator, LED3 is the tripping operation indicator light, LED4 is the electric leakage indicator light, LED5 is under-voltage overvoltage indicator light, and LED6 is overload short circuit indicator light.
As Fig. 3, three light-emitting diodes 19,20,21 are connected respectively and are connected respectively behind three current-limiting resistance R9, R13, the R49 in three different+5V circuit, connect the different port of microprocessor 12 respectively and are subjected to microprocessor 12 controls.LED4 is used to refer to the leak current fault that occurs in the circuit; The LED5 blinking red lamp is represented and has been occurred the under voltage fault in the circuit, the overvoltage fault occurred in the long bright representative circuit of red light; LED6 is used to refer to overload or the short trouble that occurs in the circuit.
Cause residual current circuit breaker 1 tripping operation when breaking down in the circuit after, microprocessor 12 reads and causes the signal that trips, if leak current fault, then connects the circuit at LED 4 places, and this moment, blinking red lamp revealed leak current fault in the cue circuit; The rest may be inferred, can realize the indication of overvoltage, under voltage fault; When residual current circuit breaker 1 tripping operation, when little processing 12 did not but read above three kinds of fault-signals, according to program setting, microprocessor 12 was connected the circuit at LED6 places, has occurred overload or short trouble in the cue circuit.
When residual current circuit breaker 1 was closed a floodgate normal operation, combined floodgate indicator light (green) was long bright, and power supply indicator (green) is long bright, and tripping operation indicator light (redness) extinguishes.Residual current circuit breaker 1 tripping operation when microprocessor 12 detects greater than the residual operating current value, power supply indicator extinguishes, trips, and indicator light is bright, electric leakage indicator light (yellow) is glittering; When detecting the electric leakage signal tripping operation in three minutes again at last once leak current fault, combined floodgate indicator light glittering (Automatic Program electric leakage action grade shifts up), power supply indicator extinguishes, trip, and indicator light is bright, the indicator light that leaks electricity is glittering; After shifting up, still detect electric leakage signal in three minutes, residual current circuit breaker 1 tripping operation, the combined floodgate indicator light is glittering, power supply indicator extinguishes, the indicator light that trips is bright, the electric leakage indicator light is long bright.
When microprocessor 12 detects under-voltage signal, residual current circuit breaker 1 tripping operation, the combined floodgate indicator light is bright, power supply indicator extinguishes, bright, the under-voltage overvoltage indicator light of the indicator light that trips (yellow) is glittering; After voltage recovered normally, the combined floodgate indicator light was bright, power supply indicator is bright, the tripping operation indicator light extinguishes, under-voltage overvoltage indicator light extinguishes.When microprocessor 12 detects the overvoltage signal, residual current circuit breaker 1 tripping operation, the combined floodgate indicator light is bright, power supply indicator extinguishes, bright, the under-voltage overvoltage indicator light of the indicator light that trips is long bright; After voltage recovered normally, the combined floodgate indicator light was bright, power supply indicator is bright, the tripping operation indicator light extinguishes, under-voltage overvoltage indicator light extinguishes.When microprocessor 12 does not detect fault-signal, tripping operation appears in residual current circuit breaker 1, then is judged to be the short circuit overload fault, and overload short circuit indicator light (yellow) is glittering.