CN208955640U

CN208955640U - A self-resetting overvoltage protector

Info

Publication number: CN208955640U
Application number: CN201821789001.9U
Authority: CN
Inventors: 姜和发
Original assignee: TIANJIN HUAMING HEXING ELECTROMECHANICAL DEVICE CO Ltd
Current assignee: TIANJIN HUAMING HEXING ELECTROMECHANICAL DEVICE CO Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2019-06-07
Anticipated expiration: 2028-11-01

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

1. A self-replicating overvoltage and undervoltage protector, comprising a main control module (1), characterized in that: a single-chip CPU, a power supply voltage regulator module, a clock module, a storage device are welded on the circuit board of the main control module (1) A reservoir, a register, a reset circuit and a reference voltage module, the main control module (1) is connected to an EMC electromagnetic anti-interference processing module (2) through a wire, and the EMC electromagnetic anti-interference processing module (2) is connected to a power supply module through a wire (3) Connected, the main control module (1) is connected to the voltage sampling module (4) through a wire, and the main control module (1) is connected to the fault indication module (8), the operation indication module (7), The motor closing control output module (6) is connected with the early warning protection module (5), and the early warning protection module (5) includes an undervoltage early warning module, an overvoltage early warning module and an overcurrent short circuit protection module.

2. A self-reset overvoltage and undervoltage protector according to claim 1, characterized in that: the power module (3) adopts a KGDY1 chip and a DZ1 chip, and the KGDY1 chip is AC220V/DC5V-2W, and the The pin 2 of the DZ1 chip is grounded, the pins 3 and 4 of the DZ1 chip are respectively connected in series with the resistor VR1, the capacitor CB1 and the inductor L1, the resistor VR1, the capacitor CB1 and the inductor L1 are connected in parallel with each other, and the inductor L1 is connected in series with the capacitor CY1 and the capacitor CY2 , the capacitor CY1 and the capacitor CY2 are both grounded, the inductor L1 is connected in series with the capacitor CB2, the upper and lower ends of the capacitor CB2 are respectively connected to the pins 1 and 3 of the KGDY1 chip, and the pins 2 and 4 of the KGDY1 chip are connected to the capacitor CC1 and capacitor C1 In series, the capacitor CC1 and the capacitor C1 are connected in parallel, and the upper end of the capacitor C1 is connected to the VCC power supply.

3. A self-reset overvoltage and undervoltage protector according to claim 1, characterized in that: the main control module (1) adopts a U1 chip, the model of the U1 chip is STC12C5608AD, and the U1 chip pin 3 It is connected in series with the capacitor C4 and the resistor R1, the capacitor C4 and the resistor R1 are connected in parallel, the resistor R1 and the U1 chip pin 16 are grounded, the capacitor C4 is connected to the VCC power supply, and the U1 chip pins 7 and 8 are connected to the capacitor CY3 and the capacitor C2. and capacitor C3 in series, the capacitor CY3 is connected in parallel with the capacitor C2 and the capacitor C3, the capacitor C2 and the capacitor C3 are connected in series, the connection between the capacitor C2 and the capacitor C3 is grounded, the U1 chip pins 31, 30 and 29 LED1, LED2 and LED3 are connected in series through resistor R2, resistor R4 and resistor R3 respectively, LED1, LED2 and LED3 are all connected to VCC power supply, said LED1, LED2 and LED3 respectively emit yellow light, green light and red light.

4. A self-reset overvoltage and undervoltage protector according to claim 1, characterized in that: the motor closing control output module (6) is provided with a motor M, and the positive pole of the motor M is connected to VCC through a switch S1 Power supply, the negative electrode of the motor M is grounded through the electromagnetic switch K1, the input end of the electromagnetic switch K1 is connected in parallel with the diode D1, the negative electrode of the diode D1 is connected to the VCC power supply, and the positive electrode of the diode D1 is connected to the collector of the transistor Q1, The base of the transistor Q1 is connected to the pin 23 of the U1 chip through the resistor R10, the emitter of the transistor Q1 is grounded, and the emitter of the transistor Q1 is connected to the pin 23 of the U1 chip through the resistor R9.

5. A self-reset overvoltage and undervoltage protector according to claim 1, characterized in that: the voltage sampling module (4) comprises a transformer T1, the transformer T1 is connected to the voltage output terminals UN and UA, and the UA The terminal is connected in series with resistor R5 and resistor R6, the resistor R5 and resistor R6 are connected in parallel, the input end of the transformer T1 is connected in parallel with resistor R1, the resistor R1 is connected in series with resistor R5, the resistor R5 is connected in series with capacitor C6, the The capacitor C6 is connected in parallel with the resistor R1, the capacitor C6 is connected in parallel with the diode D2, the diode D2 is connected to the pin 20 of the U1 chip, and the resistor R1 is grounded.