CN204089155U - Intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector - Google Patents
Intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector Download PDFInfo
- Publication number
- CN204089155U CN204089155U CN201420672947.2U CN201420672947U CN204089155U CN 204089155 U CN204089155 U CN 204089155U CN 201420672947 U CN201420672947 U CN 201420672947U CN 204089155 U CN204089155 U CN 204089155U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- type magnetic
- intelligent self
- undervoltage protector
- 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.)
- Expired - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of intelligent self-resetting type magnetic for house low-voltage power supply system and keep overvoltage-undervoltage protector, its control circuit is by power protecting circuit, electric power management circuit, voltage reference circuit, single chip circuit, Drive and Control Circuit, feedback circuit, voltage sampling circuit is totally seven part compositions, single-chip microcomputer compares sampled voltage, carry out output according to comparative result to control, result feedback is controlled to single-chip microcomputer again according to output, single-chip microcomputer judges according to the result of feedback, make drived control again, or export the successful output services state of control driving, achieve the closed control circuit exported with controlling, owing to have employed electric power management circuit and magnetic latching relay, when normally working, power consumption hardly, it is a kind of effective solution of high-tech zero-power product, by have employed Single-chip Controlling, operation voltage value, delay time precision is high, without the need to adjustment, easy production and processing, cost is low, low in energy consumption, energy-conserving and environment-protective, improve the safety and reliability of product, ensure the safety and reliability of power supply.
Description
Technical field
The utility model relates to a kind of electric network protection electrical equipment, belongs to low voltage electrical apparatus technology field.
Background technology
Along with the develop rapidly of national economy, residential electricity consumption gets more and more, but in power supply, often some accident of power supplys can occur, and causes line voltage too high or too low, causes various electrical equipment because of overvoltage, under-voltage damage.Overvoltage-undervoltage protector has following several form in the market: one is on circuit breaker foundation, increase overvoltage/undervoltage shunt release, such protector can be protected when there is overvoltage/undervoltage, deenergization, but after voltage resume is normal, can not runback, need user's closing by hand, use inconvenience, when user stays out, can not power in time, to cause in user family food in refrigerator to occur rotten, have impact on the power supply continuity of user; Two kinds is adopt common relay to be the overvoltage-undervoltage protector of master devices, and it is less that common relay also exists rated current, and relay coil needs long-time energising, and power consumption is large, not energy-conserving and environment-protective, poor reliability; Three kinds is adopt magnetic latching relay to be the overvoltage-undervoltage protector of master devices; although magnetic latching relay rated current is larger; coil does not need long-term power supply; power consumption is little; energy-conserving and environment-protective; but due to power supply lines many employings appearance formula step-down circuit; coil drive current is by the restriction of decompression capacitor capacity; so the capacity of decompression capacitor can not design too little; even if magnetic latching relay coil is not powered at ordinary times; but also this decompression capacitor Capacity design out, the waste of electric energy to be caused, energy-conserving and environment-protective that can not be real.
Summary of the invention
The purpose of this utility model is the above-mentioned shortcoming existed for product in the market, and the intelligent self-resetting type magnetic of the one provided keeps overvoltage-undervoltage protector.
The purpose of this utility model is realized by following structure: power protecting circuit A, electric power management circuit B, voltage reference circuit C, single chip circuit D, Drive and Control Circuit E, feedback circuit F, voltage sampling circuit G be totally seven part compositions.Line voltage, after power protecting circuit A monitoring and protection, through electric power management circuit B, produces two voltages, and voltage provides operating voltage for magnetic latching relay, and voltage provides working power for each electronic circuit, voltage reference circuit C provides four benchmark comparing voltage value for single chip circuit D, the voltage compare value provided for single chip circuit D and voltage sampling circuit G compares, a reference voltage value is overvoltage comparison value, a reference voltage value is that overvoltage recovers comparison value, a under-voltage recovery comparison value of reference voltage, a under-voltage comparison value of reference voltage, single-chip microcomputer is according to the result compared, export to Drive and Control Circuit E, drive magnetic latching relay action, feedback circuit F feeds back to single chip circuit D according to the output state of magnetic latching relay, single-chip microcomputer is made driving or output services state again according to feedback states and is indicated to operating state.
Main feature of the present utility model is that single-chip microcomputer compares sampled voltage, intelligent decision is carried out according to different reference voltage values, make intelligentized control method, single-chip microcomputer is fed back to again according to control Output rusults, single-chip microcomputer carries out intellectual determination again according to the result of feedback, whether successfully control driving, make drived control again, or export the successful output services state instruction of control driving, achieve the closed-loop control exported with controlling, multivoltage fiducial value relatively achieve intellectual determination, avoid the frequent movement occurred when sampled voltage is in critical value, operation voltage value, delay time precision are high, adjustment-free, easy production and processing, and cost is low, energy-conserving and environment-protective, improves the safety and reliability of product.
accompanying drawing explanation
Fig. 1 of the present utility modelly realizes schematic diagram.
Wherein A is power protecting circuit, and B is electric power management circuit, and C is voltage reference circuit, and D is single chip circuit, and E is Drive and Control Circuit, and F is feedback circuit, and G is voltage sampling circuit.
Specific embodiments
This intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector, and adopt microprocessor detect, compare, control, feed back, magnetic latching relay is control element; Power protecting circuit, electric power management circuit, voltage reference circuit, single chip circuit, Drive and Control Circuit, feedback circuit, voltage sampling circuit totally seven parts are formed; Power supply enters first through power protecting circuit monitoring, guarantees the safety of circuit voltage, by electric power management circuit for each circuit provides working power.The output being input as power supply protection circuit of voltage sampling circuit, for the voltage after line voltage rectification, for single-chip microcomputer provides voltage sample comparative voltage, by reference voltage circuit for single-chip microcomputer provides four benchmark comparative voltages, export control signal to Drive and Control Circuit by single-chip microcomputer again, drive corresponding closing coil by Drive and Control Circuit or disconnect coil; To feed back signal to single-chip microcomputer by feedback circuit, and be judged by single-chip microcomputer according to feedback signal, output services state indicates.
Power protecting circuit A is made up of insurance F1, piezo-resistance R1, rectifier bridge D1.
Electric power management circuit B is made up of power management chip IC1, IC2 resistance R2, R3, electric capacity C1, C2, C4 inductance L 1, diode D2, D3.
Voltage reference circuit C is made up of resistance R4, R5, R6, R7, R8.
Single chip circuit D is made up of single-chip microcomputer IC3.
Drive and Control Circuit E is made up of driving chip IC4, magnetic latching relay K1.
Feedback circuit F is by resistance R12, R13, and electric capacity C7, C8 form.
Voltage sampling circuit G is by resistance R9, R10, R11, and electric capacity C5, C6 form.
Claims (7)
1. the intelligent self-resetting type magnetic of claim 1 one kinds keeps overvoltage-undervoltage protector, it is characterized in that this intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector to adopt microprocessor detect, relatively, control, feedback, magnetic latching relay is as control element, its control circuit is by power protecting circuit A, electric power management circuit B, voltage reference circuit C, single chip circuit D, Drive and Control Circuit E, feedback circuit F, voltage sampling circuit G forms, electric power incoming line monitors line voltage for safe operating voltage with power protecting circuit A, be defeated by electric power management circuit B and line voltage distribution sample circuit G, by electric power management circuit B for each circuit provides working power, compared according to the value of voltage sample and fiducial value by single chip circuit D, judge to export to Drive and Control Circuit E, output state feedback circuit F by feedback signal back to single chip circuit D, judge output services state.
2. the intelligent self-resetting type magnetic according to claim 1 keeps overvoltage-undervoltage protector, it is characterized in that power protecting circuit A is made up of fuse F1, piezo-resistance R1 and rectifier bridge D1, fuse F1 can be transformed to self-healing fuse.
3. the intelligent self-resetting type magnetic according to claim 1 keeps overvoltage-undervoltage protector, it is characterized in that electric power management circuit B is by power management chip IC1, IC2, resistance R2, R3, electric capacity C1, C2, inductance L 1, and diode D2, D3 form.
4. the intelligent self-resetting type magnetic according to claim 1 keeps overvoltage-undervoltage protector, it is characterized in that voltage reference circuit C is made up of divider resistance R4, R5, R6, R7, R8.
5. the intelligent self-resetting type magnetic according to claim 1 keeps overvoltage-undervoltage protector; it is characterized in that Drive and Control Circuit E by driving electrical chip IC4, magnetic latching relay K1 forms, driving chip IC4 is variable, and the triode that is changed to drives or chip IC 1 is transformed to bridge drive circuit.
6. the intelligent self-resetting type magnetic according to claim 1 keeps overvoltage-undervoltage protector, it is characterized in that feedback circuit F is by electric R12, R13, and electric capacity C7, C8 form, and this circuit can be transformed to optocoupler circuit.
7. the intelligent self-resetting type magnetic according to claim 1 keeps overvoltage-undervoltage protector, it is characterized in that voltage sampling circuit G is by resistance R9, R10, R11, and electric capacity C5, C6 form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672947.2U CN204089155U (en) | 2014-11-10 | 2014-11-10 | Intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672947.2U CN204089155U (en) | 2014-11-10 | 2014-11-10 | Intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089155U true CN204089155U (en) | 2015-01-07 |
Family
ID=52181827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672947.2U Expired - Fee Related CN204089155U (en) | 2014-11-10 | 2014-11-10 | Intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821345A (en) * | 2021-01-25 | 2021-05-18 | 上海电器科学研究所（集团）有限公司 | Control device and control method for voltage fault protection |
-
2014
- 2014-11-10 CN CN201420672947.2U patent/CN204089155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821345A (en) * | 2021-01-25 | 2021-05-18 | 上海电器科学研究所（集团）有限公司 | Control device and control method for voltage fault protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202652141U (en) | Coal feeder frequency converter low voltage crossover device | |
| CN208299427U (en) | Overvoltage crowbar and over-pressure safety device | |
| CN104425997A (en) | Intelligent static safe energy-saving multifunctional socket with zero power consumption | |
| CN104184124A (en) | Direct current breaker for high-frequency switch power supply system and overload protection method | |
| CN204144918U (en) | The DC circuit breaker that a kind of high frequency switch power supply system uses | |
| CN102148529B (en) | Control device and control method thereof for intelligently supplying power to circuit breaker control unit | |
| CN203561857U (en) | Low-power standby control system | |
| CN202050357U (en) | Protection module for switching power supply of direct current screen | |
| CN201994717U (en) | Control device for supplying power to breaker control units | |
| CN102843052A (en) | Rectification module of intelligent high frequency switch power supply | |
| CN204089155U (en) | Intelligent self-resetting type magnetic keeps overvoltage-undervoltage protector | |
| CN203326551U (en) | Magnetic latching non-stick over-voltage and under-voltage protector | |
| CN203800561U (en) | Three-phase self-reset over-voltage and under-voltage protector based on single chip microcomputer | |
| CN203260995U (en) | Single-phase safety electricity-using appliance | |
| CN203056555U (en) | Over-current protector | |
| CN202871720U (en) | Automatic actuation double-coil under-voltage electrical apparatus release circuit | |
| CN202840995U (en) | Rectifier module of intelligent high-frequency switching power supply | |
| CN203984225U (en) | A kind of frequency converter low voltage ride through device | |
| CN206542181U (en) | Intelligent non-pressure release coil controller | |
| CN202696285U (en) | Boundary switch controller | |
| CN205160065U (en) | Instantaneous circuit protector against power failure of industrial computer hardware facility | |
| CN208100420U (en) | A kind of robot control system and robot | |
| CN103779831A (en) | Self-recovery over-voltage and under-voltage protection device based on single-chip microcomputer | |
| CN205319693U (en) | Radar intelligent power distribution system | |
| CN203151068U (en) | Three-phase protection relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20181110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |