CN208955640U - A kind of Self-recover overvoltage-undervoltage protector - Google Patents

Abstract

The utility model discloses a kind of Self-recover overvoltage-undervoltage protectors, including main control module, singlechip CPU is welded on the circuit board of the main control module, power regulator module, clock module, memory, register, reset circuit and reference voltage module, the main control module is connected by conducting wire with EMC electromagnetism anti-interference process module, the EMC electromagnetism anti-interference process module is connected by conducting wire with power module, the main control module is connected by conducting wire with voltage sample module, the main control module passes through connecting wire and failure indication module, run indicating module, motor shutting-brake control output module is connected with early warning protection module.The Self-recover overvoltage-undervoltage protector can be disconnected when overvoltage in route and under-voltage are more than specified value automatically by the overall structure of equipment, and can automatic inspection line road voltage, the device that can be closed automatically when voltage restores normal in route.

Description

A kind of Self-recover overvoltage-undervoltage protector

Technical field

The utility model relates to technical field of electric power, specially a kind of Self-recover overvoltage-undervoltage protector.

Background technique

Independent Self-recover overvoltage-undervoltage protector also known as, self- recoverage crosses under-voltage protector, crosses under-voltage protector, automatic multiple Under-voltage protector, overvoltage-undervoltage protector, full-automatic overvoltage-undervoltage protector, single-phase overvoltage-undervoltage protector, overvoltage, deficient electricity are crossed in position Protector, self-resetting type overvoltage, under-voltage protector are pressed, protection control route generally uses relay contact to protect as on/off switch Shield, since relay contact capacity is small, is not available in tens Ampere currents hereinafter, for high-power electric current generally, therefore I Propose a kind of Self-recover overvoltage-undervoltage protector.

Utility model content

The purpose of this utility model is to provide a kind of Self-recover overvoltage-undervoltage protectors, to solve to mention in above-mentioned background technique Out the problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of Self-recover overvoltage-undervoltage protector, including Main control module, be welded on the circuit board of the main control module singlechip CPU, power regulator module, clock module, memory, Register, reset circuit and reference voltage module, the main control module pass through conducting wire and EMC electromagnetism anti-interference process module phase Even, the EMC electromagnetism anti-interference process module is connected by conducting wire with power module, and the main control module passes through conducting wire and voltage Sampling module is connected, and the main control module passes through connecting wire and failure indication module, operation indicating module, motor shutting-brake control Output module is connected with early warning protection module, and the early warning protection module includes under-voltage warning module, over-voltage warning module and mistake Flow short-circuit protective module.

Preferably, the power module uses KGDY1 chip and DZ1 chip, and the KGDY1 chip is AC220V/DC5V- The foot 2 of 2W, the DZ1 chip are grounded, and the foot 3 and 4 of the DZ1 chip is connected with resistance VR1, capacitor CB1 and inductance L1 respectively, Resistance VR1, capacitor CB1 and inductance L1 are parallel with one another, and the inductance L1 connects with capacitor CY1 and capacitor CY2, capacitor CY1 and electricity Hold CY2 to be grounded, the inductance L1 connects with capacitor CB2, and the upper and lower side of the capacitor CB2 is separately connected the foot 1 of KGDY1 chip With 3, the foot 2 and 4 of the KGDY1 chip is connected with capacitor CC1 and capacitor C1, and the capacitor CC1 and capacitor C1 are in parallel, the electricity Hold the upper end C1 and connects VCC power supply.

Preferably, the main control module uses U1 chip, the model STC12C5608AD of the U1 chip, the U1 core Piece foot 3 is connected with capacitor C4 and resistance R1, and the capacitor C4 and resistance R1 are in parallel, and the resistance R1 and U1 chip foot 16 are grounded, The capacitor C4 connection VCC power supply, the U1 chip foot 7 and 8 are connected with capacitor CY3, capacitor C2 and capacitor C3, the capacitor CY3 is in parallel with capacitor C2 and capacitor C3, the capacitor C2 and capacitor C3 series connection, between the capacitor C2 and the junction of capacitor C3 Ground connection, the U1 chip foot 31,30 and 29 pass through resistance R2, resistance R4 and resistance R3 series LED 1, LED2 and LED3 respectively, LED1, LED2 and LED3 are all connected with VCC power supply, and described LED1, LED2 and LED3 issue yellow light, green light and feux rouges respectively.

Preferably, the motor shutting-brake control output module is equipped with motor M, and the anode of the motor M is connected by switch S1 VCC power supply is connect, the cathode of the motor M is grounded by electromagnetic switch K1, the input terminal and diode D1 of the electromagnetic switch K1 The cathode of parallel connection, the diode D1 connects VCC power supply, the collector of the positive connecting triode Q1 of the diode D1, institute The base stage for stating triode Q1 passes through the foot 23 of resistance R10 connection U1 chip, the emitter ground connection of the triode Q1, triode Q1 Emitter pass through the foot 23 of resistance R9 connection U1 chip.

Preferably, the voltage sample module includes transformer T1, transformer T1 connection the voltage output end UN and UA, The end UA is connected with resistance R5 and resistance R6, and the resistance R5 and resistance R6 are in parallel, the input terminal and electricity of the transformer T1 It is in parallel to hinder R1, the resistance R1 connects with resistance R5, and the resistance R5 connects with capacitor C6, and the capacitor C6 and resistance R1 are simultaneously Connection, the capacitor C6 is in parallel with diode D2, and the diode D2 is connected with the foot 20 of U1 chip, the resistance R1 ground connection.

Compared with prior art, the utility model has the beneficial effects that the Self-recover overvoltage-undervoltage protector, passes through equipment Overall structure can disconnect automatically when overvoltage in route and under-voltage are more than specified value, and can automatic inspection line road voltage, when The device that can be closed automatically when voltage restores normal in route；Installation wiring board and motor is used alone in control section, is used for Cooperate separator use, when there is overvoltage, under-voltage in power supply line, protector can rapidly, safely cut off circuit, when Voltage restores normal value, and protector will automatic processing circuit at the appointed time, it is ensured that terminal appliance is in unattended situation It operates normally, is used suitable for family and market distribution line as overvoltage, low-voltage protection.

Detailed description of the invention

Fig. 1 is the utility model structure principle chart；

Fig. 2 is the utility model power module circuitry figure；

Fig. 3 is the utility model main control module circuit diagram；

Fig. 4 is the utility model motor shutting-brake control output module circuit diagram；

Fig. 5 is the utility model voltage sample module circuit diagram.

In figure: 1 main control module, 2EMC electromagnetism anti-interference process module, 3 power modules, 4 voltage sample modules, 5 early warning are anti- Protect module, 6 motor shutting-brake control output modules, 7 operation indicating modules, 8 failure indication modules.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of Self-recover overvoltage-undervoltage protector, including master Module 1 is controlled, the main control module 1 uses U1 chip, the model STC12C5608AD of the U1 chip, the U1 chip foot 3 It connects with capacitor C4 and resistance R1, the capacitor C4 and resistance R1 are in parallel, and the resistance R1 and U1 chip foot 16 are grounded, the electricity Hold C4 connection VCC power supply, the U1 chip foot 7 and 8 is connected with capacitor CY3, capacitor C2 and capacitor C3, the capacitor CY3 and electricity It is in parallel to hold C2 and capacitor C3, the capacitor C2 and capacitor C3 series connection, the junction of the capacitor C2 and capacitor C3 indirectly, institute U1 chip foot 31,30 and 29 is stated respectively by resistance R2, resistance R4 and resistance R3 series LED 1, LED2 and LED3, LED1, LED2 It is all connected with VCC power supply with LED3, described LED1, LED2 and LED3 issue yellow light, green light and feux rouges respectively, and green is permanent bright: normal Operation, "on" position are red permanent bright: under-voltage fault, red flashing: over-voltage fault, green flashing: time-delay closing, indicator light off: There is no power supply or switch in manual mode.Circuit work power is derived from supply side, and AC220V is defeated through switching mode power supply transformer 5V DC voltage is to single-chip microcontroller and control line powering out.Reduction voltage circuit is output to real-time voltage acquisition A/D circuit, conversion simultaneously Voltage is sent into CPU detection, judges that voltage is more than under-voltage protection value or overvoltage protection value, through fixed separating brake delay separating brake, to voltage Restore, the automatic closing after fixed self- recoverage closes a floodgate delay, is welded with singlechip CPU, electricity on the circuit board of the main control module 1 Source Voltage stabilizing module, clock module, memory, register, reset circuit and reference voltage module, the main control module 1 is by leading Line is connected with EMC electromagnetism anti-interference process module 2, and the EMC electromagnetism anti-interference process module 2 passes through conducting wire and power module 3 It is connected, the power module 3 uses KGDY1 chip and DZ1 chip, and the KGDY1 chip is AC220V/DC5V-2W, described The foot 2 of DZ1 chip is grounded, and the foot 3 and 4 of the DZ1 chip is connected with resistance VR1, capacitor CB1 and inductance L1 respectively, resistance VR1, capacitor CB1 and inductance L1 are parallel with one another, and the inductance L1 connects with capacitor CY1 and capacitor CY2, capacitor CY1 and capacitor CY2 It is grounded, the inductance L1 connects with capacitor CB2, and the upper and lower side of the capacitor CB2 is separately connected the foot 1 and 3 of KGDY1 chip, The foot 2 and 4 of the KGDY1 chip is connected with capacitor CC1 and capacitor C1, and the capacitor CC1 and capacitor C1 are in parallel, the capacitor C1 Upper end connects VCC power supply.The main control module 1 is connected by conducting wire with voltage sample module 4, and the voltage sample module 4 is wrapped Transformer T1 is included, transformer T1 connection the voltage output end UN and UA, the end UA is connected with resistance R5 and resistance R6, described Resistance R5 and resistance R6 are in parallel, and the input terminal of the transformer T1 is in parallel with resistance R1, and the resistance R1 connects with resistance R5, institute It states resistance R5 to connect with capacitor C6, the capacitor C6 is in parallel with resistance R1, and the capacitor C6 is in parallel with diode D2, two pole Pipe D2 is connected with the foot 20 of U1 chip, and the resistance R1 ground connection, the main control module 1 passes through connecting wire and failure indication module 8, indicating module 7 is run, motor shutting-brake control output module 6 is connected with early warning protection module 5, the motor shutting-brake control output Module 6 is equipped with motor M, and the anode of the motor M by switch S1 connection VCC power supply, opened by electromagnetism by the cathode of the motor M K1 ground connection is closed, the input terminal of the electromagnetic switch K1 is in parallel with diode D1, and the cathode of the diode D1 connects VCC power supply, The base stage of the collector of the positive connecting triode Q1 of the diode D1, the triode Q1 passes through resistance R10 connection U1 core The foot 23 of piece, the emitter ground connection of the triode Q1, the emitter of triode Q1 pass through the foot 23 of resistance R9 connection U1 chip. The early warning protection module 5 includes under-voltage warning module, over-voltage warning module and overcurrent short circuit protection module.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of Self-recover overvoltage-undervoltage protector, including main control module (1), it is characterised in that: the circuit of the main control module (1) Singlechip CPU, power regulator module, clock module, memory, register, reset circuit and reference voltage mould are welded on plate Block, the main control module (1) are connected by conducting wire with EMC electromagnetism anti-interference process module (2), the anti-interference place of EMC electromagnetism Reason module (2) is connected by conducting wire with power module (3), and the main control module (1) passes through conducting wire and voltage sample module (4) phase Even, the main control module (1) passes through connecting wire and failure indication module (8), operation indicating module (7), motor shutting-brake control Output module (6) is connected with early warning protection module (5), and the early warning protection module (5) includes under-voltage warning module, over-voltage early warning Module and overcurrent short circuit protection module.

2. a kind of Self-recover overvoltage-undervoltage protector according to claim 1, it is characterised in that: the power module (3) is adopted With KGDY1 chip and DZ1 chip, the KGDY1 chip is AC220V/DC5V-2W, and the foot 2 of the DZ1 chip is grounded, described The foot 3 and 4 of DZ1 chip is connected with resistance VR1, capacitor CB1 and inductance L1 respectively, and resistance VR1, capacitor CB1 and inductance L1 are mutual Parallel connection, the inductance L1 connect with capacitor CY1 and capacitor CY2, and capacitor CY1 and capacitor CY2 are grounded, the inductance L1 and capacitor CB2 series connection, the upper and lower side of the capacitor CB2 are separately connected the foot 1 and 3 of KGDY1 chip, the foot 2 and 4 of the KGDY1 chip with Capacitor CC1 and capacitor C1 series connection, the capacitor CC1 and capacitor C1 are in parallel, and the upper end the capacitor C1 connects VCC power supply.

3. a kind of Self-recover overvoltage-undervoltage protector according to claim 1, it is characterised in that: the main control module (1) is adopted With U1 chip, the model STC12C5608AD of the U1 chip, the U1 chip foot 3 is connected with capacitor C4 and resistance R1, institute It states capacitor C4 and resistance R1 is in parallel, the resistance R1 and U1 chip foot 16 are grounded, the capacitor C4 connection VCC power supply, the U1 Chip foot 7 and 8 is connected with capacitor CY3, capacitor C2 and capacitor C3, and the capacitor CY3 is in parallel with capacitor C2 and capacitor C3, the electricity Hold C2 and capacitor C3 series connection, the junction of the capacitor C2 and capacitor C3 indirectly, the U1 chip foot 31,30 and 29 is distinguished VCC power supply, institute are all connected with by resistance R2, resistance R4 and resistance R3 series LED 1, LED2 and LED3, LED1, LED2 and LED3 It states LED1, LED2 and LED3 and issues yellow light, green light and feux rouges respectively.

4. a kind of Self-recover overvoltage-undervoltage protector according to claim 1, it is characterised in that: the motor shutting-brake control is defeated Module (6) is equipped with motor M out, and for the anode of the motor M by switch S1 connection VCC power supply, the cathode of the motor M passes through electricity Magnetic switch K1 ground connection, the input terminal of the electromagnetic switch K1 is in parallel with diode D1, the cathode connection VCC electricity of the diode D1 The base stage in source, the collector of the positive connecting triode Q1 of the diode D1, the triode Q1 passes through resistance R10 connection U1 The foot 23 of chip, the emitter ground connection of the triode Q1, the emitter of triode Q1 pass through the foot of resistance R9 connection U1 chip 23。

5. a kind of Self-recover overvoltage-undervoltage protector according to claim 1, it is characterised in that: the voltage sample module It (4) include transformer T1, transformer T1 connection the voltage output end UN and UA, the end UA and resistance R5 and resistance R6 go here and there Connection, the resistance R5 and resistance R6 are in parallel, and the input terminal of the transformer T1 is in parallel with resistance R1, the resistance R1 and resistance R5 Series connection, the resistance R5 connect with capacitor C6, and the capacitor C6 is in parallel with resistance R1, and the capacitor C6 is in parallel with diode D2, The diode D2 is connected with the foot 20 of U1 chip, the resistance R1 ground connection.