CN206992677U - Fully-automatic intelligent switch type control circuit of earth leakage - Google Patents
Fully-automatic intelligent switch type control circuit of earth leakage Download PDFInfo
- Publication number
- CN206992677U CN206992677U CN201720638617.5U CN201720638617U CN206992677U CN 206992677 U CN206992677 U CN 206992677U CN 201720638617 U CN201720638617 U CN 201720638617U CN 206992677 U CN206992677 U CN 206992677U
- Authority
- CN
- China
- Prior art keywords
- module
- voltage
- control module
- logic
- detection
- 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.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
It the utility model is related to Household electricity leakage protection device product technical field; especially fully-automatic intelligent switch type control circuit of earth leakage, including power supply module, ground wire electrified detection and indicating module, E N voltage switches logic module, E N voltage follows module, paraphase control module, integration module, logic state transition module, switching logic control module, ground line current detection module, zero sequence detection of electrical leakage module, electric leakage dropout control module, high temperature protection control module and electromagnetic trip coil.For the utility model compared with existing voltage-type earth leakage protective device technology, security is higher, energy automatic identification and switching control pattern, solves the potential safety hazard brought after power utilization environment mutation.
Description
Technical field
Household electricity leakage protection device product technical field is the utility model is related to, especially fully-automatic intelligent switch type electric leakage is protected
Protect device control circuit.
Background technology
Existing earth leakage protective device has voltage-type and current mode and voltage/current interlocking control type, the type product excellent
Putting is：By artificially selecting to protect type to reach more preferable versatility to adapt to power utilization environment with this.Shortcoming is：When attached
Earth leakage protective device can not be tackled constantly when product later stage power utilization environment is undergone mutation, such as：It is preset in advance to be leaked electricity using voltage-type
Protector is when meeting power outlet opposite polarity, and when receptacle grounds are with live wire short circuit, device is protected in now voltage-type leakage will lose protection
Effect.For this potential safety hazard, the utility model proposes fully-automatic intelligent switch type earth leakage protective device (constantly to move according to power utilization environment
State switches to voltage or current mode or voltage+electric current) control circuit solves above-mentioned potential safety hazard.
Utility model content
The purpose of the utility model is to overcome deficiency of the prior art, there is provided fully-automatic intelligent switch type earth leakage protective
Device control circuit, constantly the voltage between dynamic detection E-N judge the electric power polarity whether on the contrary, whether ground wire opens a way, E-N is
No short circuit, E-L whether the dynamic monitoring such as short circuit judge and logic output switching signal perform work at present protected mode (voltage or
Curtage+electric current) type protection, the potential safety hazard for avoiding power utilization environment mutation from bringing.
In order to solve the above-mentioned technical problem, the utility model is to be achieved through the following technical solutions：
Fully-automatic intelligent switch type control circuit of earth leakage, including power supply module, ground wire electrified detection and instruction mould
Block, E-N voltage switches logic module, E-N voltage follows module, paraphase control module, integration module, logic state transition mould
Block, switching logic control module, ground line current detection module, zero sequence detection of electrical leakage module, electric leakage dropout control module, high temperature dwell
Protect control module and electromagnetic trip coil.The power supply module connects ground wire electrified detection and indicating module and E-N voltages respectively
Switch logic.The ground wire electrified detection and indicating module pass sequentially through E-N voltage switches logic module, E-N voltages with
Ground wire electricity is connected respectively with module, paraphase control module, integration module, logic state transition module, switching logic control module
Flow detection module and electric leakage dropout control module.Zero sequence detection of electrical leakage module, high temperature protection control module and the electromagnetic trip
Coil is all connected with dropout control module of leaking electricity.The electromagnetic trip coil is also associated with experiment electric leakage voltage reduction module.
Preferably, the indicating module of the ground wire electrified detection and indicating module (LED) and ground wire electrified detection and finger
The connected mode for showing the ground wire electrified detection module of module is " series connection ".Ground wire electrified detection and indicating module are to be attempted by power supply
Input between E-N.
The utility model beneficial effect：The utility model is compared with existing voltage-type earth leakage protective device technology, security
It is higher, energy automatic identification and switching control pattern, solve the potential safety hazard brought after power utilization environment mutation, using E-N voltages
Switching logic judges after detecting extreme condition (E-L direct short-circuits) that system automatically switches into current mode protection, prevents that power supply is defeated
Enter end potential safety hazard caused by the anti-phase rear socket ground wire disconnection of zero live wire and with live wire short circuit.The control improves electric leakage again
The safe mode in protector field is suitable for different power utilization environments so as to more effectively realize safety utilization of electric power.
Design, concrete structure and caused technique effect of the present utility model are made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
As shown in figure 1, fully-automatic intelligent switch type control circuit of earth leakage, including power supply module, ground strip electric-examination
Survey and indicating module, E-N voltage switches logic module, E-N voltage follows module, paraphase control module, integration module, logic shape
State modular converter, switching logic control module, ground line current detection module, zero sequence detection of electrical leakage module, electric leakage, which are threaded off, controls mould
Block, high temperature protection control module and electromagnetic trip coil.The power supply module connects ground wire electrified detection and indicating module respectively
With E-N voltage switch logic modules.The ground wire electrified detection and indicating module pass sequentially through E-N voltage switches logic module,
E-N voltage follows module, paraphase control module, integration module, logic state transition module, switching logic control module connect respectively
It is grounded current detection module and electric leakage dropout control module.The zero sequence detection of electrical leakage module, high temperature protection control module and
Electromagnetic trip coil is all connected with dropout control module of leaking electricity.The electromagnetic trip coil is also associated with experiment electric leakage voltage reduction module.
Further, the power supply module is available to the power supply of E-N voltage switch logic modules.The E-N voltages are opened
It is to analyze the terminal voltage feature between power input E-N to close logic module, and three kinds of state of a controls (high electricity is exported according to voltage characteristic
It is flat, low level, pulse).The E-N voltage follows module is the size (linear scale) between direct proportion output E-N.When connecing
High level is then exported when receiving high level, low level is then exported when receiving low level, arteries and veins is then exported when receiving pulse
Punching.The paraphase control module is that the signal that receives carries out level conversion (high level turns low level or low level turns high electricity
It is flat).The integration module is that E-N voltage follows output pulse signal carries out integration and pulse signal is converted into high level or low electricity
Flat, after detecting extreme condition (E-L direct short-circuits) using E-N voltage switch logic decisions, system automatically switches into current mode
Protection, prevent power input potential safety hazard caused by the anti-phase rear socket ground wire disconnection of zero live wire and with live wire short circuit.The control
The safe mode that system improves earth leakage protective device field again is suitable for different power utilization environments so as to more effectively realize peace
Full electricity consumption.
Further, size of the E-N voltage switches logic module according to voltage between power utilization environment E-N, intelligence are defeated
Go out three kinds of logics (high level, low level, pulse), three states.
Further, three kinds of logics of the intelligence output are respectively：E has ground connection：Export low level；E is no ground, and E-N is short
Road, E-L short circuits：Export high level；E is powered：Pulse (dutycycle) is exported during E-N ＞ 18V.
Further, the power supply module is attempted by between power supply L-N, and output end is connected with E-N voltage switch logic moulds
Block, E-N voltage follows output pulse signal, which carries out integration, makes pulse signal be converted into high level or low level.
Further, the indicating module of the ground wire electrified detection and indicating module (LED) and ground wire electrified detection with
The connected mode of the ground wire electrified detection module of indicating module is " series connection ".Ground wire electrified detection and indicating module are to be attempted by electricity
Between source input E-N.
Further, the size (linear scale) between the E-N voltage follows module direct proportion output E-N.When E-N it
Between voltage ＞ 18V when, ground wire voltage follows module to begin with voltage output, and the voltage between E-N is bigger, and ground wire voltage follows mould
Block output voltage is higher, and maximum output voltage is the supply voltage that ground wire voltage follows module.
Further, described logic state transition module receives the low and high level from integration module output.Work as detection
Integration module then exports low level when exporting high level, otherwise exports high level.
Further, the paraphase control module receives the switching signal from the output of E-N voltage follows module.Work as input
It is low level then to be exported during high level, otherwise is high level.Switching logic control module, which receives, carrys out logic state transition module
Switching signal.Then export when input high level and (presented for low level (output end presentation short-circuit condition), otherwise output cut-off
Open-circuit condition).
Further, the ground line current detection module output end is controlled by the output control of switching logic control module.
When switching logic control module exports low level, the ground line current detection module output will force shorted to earth, not allow
Ground line current participates in earth leakage protective.When switching logic control module exports high level, the ground line current detection module output
Ground line current earth leakage protective will be participated in.
For the utility model compared with existing voltage-type earth leakage protective device technology, security is higher, and energy automatic identification is simultaneously cut
Control model is changed, the potential safety hazard brought after power utilization environment mutation is solved, pole is detected using E-N voltage switch logic decisions
After end condition (E-L direct short-circuits), system automatically switches into current mode protection, prevents power input from being inserted after zero live wire is anti-phase
Seat ground wire disconnect and with live wire short circuit caused by potential safety hazard.The control improves the safe mode in earth leakage protective device field again
Different power utilization environments is suitable for so as to more effectively realize safety utilization of electric power.
Operation principle：
E-N voltage switch logic modules, "on" position, power supply module output voltage supply to E-N voltage switches logic module
Electricity, after obtaining electricity, judge and export corresponding logical signal according to the voltage difference between current E-N or Δ V, such as：E has ground connection：It is defeated
Go out low level；E is no ground, E-N short circuits, E-L short circuits：Export high level；E is powered：Pulse (duty is exported during E-N ＞ 18V
Than), E-N ＞ 36V, PE ＞ 30mA protection "on" positions.Ground wire electrified detection constantly monitors attaching plug input with indicating module
Voltage between E-N ends, the voltage export multistate switch signal after E-N voltage switches logic module carries out logical transition, should
Output signal output linearity control voltage or low and high level after E-N voltage follows module carries out ratio conversion.The signal is through falling
Integrated module carries out the logical process that 3 states turn 2 states again after the progress phase displacement of phase control module.(when integration module input is
During high level, export as high level；When integration module input is low level, export as low level；When integration module input is
During pulse, export as high level)；Low and high level after converted is sent to logic state transition module and carries out switch control output.
When input be high level, export as low level, on the contrary is high level；The low level cuts the output of switching logic control module
Only, system has automatically turned on current mode defencive function during the state, if now ground line current detection module detects that ground wire leaks electricity
During stream, electric leakage dropout control module will be output control signals to, electric leakage dropout control module driving electromagnetic trip coil performs guarantor
Trip operation is protected, is realized (such as：E-N ＞ 36V), ground wire leakage current is (such as：＞ 30mA) dual judgement defencive function.
Ground line current protection "on" position is closed during E-N ＜ 36V, PE ＞ 30mA, when ground wire electrified detection is with indicating module
When monitor voltage between attaching plug input E-N ends, voltage output after E-N voltage switches module carries out logical transition is more
State switching signal, the output signal output linearity control voltage or height electricity after E-N voltage follows module carries out ratio conversion
Put down (such as：Low level).Integrated module carries out patrolling for 3 states turn, 2 states to the signal again after paraphase control module carries out phase displacement
Collect processing (such as：Export low level).Low level after converted is sent to logic state transition module and carries out switching control and export
High level, the high level make switching logic control module export low level (saturation conduction), positive closing ground line current detection
Module, ground line current defencive function is closed when realizing E-N ＜ 36V, PE ＞ 30mA.
E is no ground, E-N short circuits, E-L short circuits：Firing current defencive function, "on" position, ground wire electrified detection and instruction
Module constantly monitors the voltage between attaching plug input E-N ends, and the voltage carries out logic through E-N voltage switches logic module and turned
Multistate switch signal (when detecting that E is no ground, E-N is short-circuit, the Δ v=0V between E-L short circuits or E-N), switch are exported after changing
Logic exports high level, and the high level exports high level after E-N voltage follows module carries out ratio conversion.The high level is through falling
Phase control module exports low level after carrying out phase displacement, then integrated module carries out the logical process output high level of 2 states；Through
High level after conversion is sent to logic state transition module and carries out switching control and export low level, and the low level makes switching logic
Control module output high level (cut-off) enforced opening ground line current detection module, realizes that E is no ground, and E-N is short-circuit, E-L
Ground line current defencive function is opened under short-circuit mode.
E has ground connection：Low level "on" position is exported, ground wire electrified detection constantly monitors attaching plug input with indicating module
Voltage between E-N ends, the voltage exported after E-N voltage switches logic module carries out logical transition multistate switch signal (when
When having ground connection), switching logic output low level, the low level exports low electricity after E-N voltage follows module carries out ratio conversion
It is flat.The low level exports high level after paraphase control module carries out phase displacement, then integrated module is carried out at the logic of 2 states
Reason output low level；Low level after converted is sent to logic state transition module and carries out switching control and export high level, should
High level makes switching logic control module export low level (saturation conduction), positive closing ground line current detection module, realizes
E has ground connection to close ground line current defencive function.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member makes many modifications and variations without creative work can according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (2)
1. fully-automatic intelligent switch type control circuit of earth leakage, it is characterised in that：Including power supply module, ground wire electrified detection
With indicating module, E-N voltage switches logic module, E-N voltage follows module, paraphase control module, integration module, logic state
Modular converter, switching logic control module, ground line current detection module, zero sequence detection of electrical leakage module, electric leakage dropout control module,
High temperature protection control module and electromagnetic trip coil, the power supply module connect ground wire electrified detection and indicating module and E- respectively
N voltage switch logic modules, the ground wire electrified detection pass sequentially through E-N voltage switches logic module, E-N electricity with indicating module
Pressure follows module, paraphase control module, integration module, logic state transition module, switching logic control module to connect ground respectively
Line current detection module and electric leakage dropout control module, zero sequence detection of electrical leakage module, high temperature protection control module and the electromagnetism
Tripping coil is all connected with dropout control module of leaking electricity, and the electromagnetic trip coil is also associated with experiment electric leakage voltage reduction module.
2. fully-automatic intelligent switch type control circuit of earth leakage as claimed in claim 1, it is characterised in that：The ground wire
The indicating module of live detection and indicating module and the connection of ground wire electrified detection and the ground wire electrified detection module of indicating module
Mode is " series connection ", and ground wire electrified detection and indicating module are attempted by between power input E-N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638617.5U CN206992677U (en) | 2017-05-25 | 2017-05-25 | Fully-automatic intelligent switch type control circuit of earth leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638617.5U CN206992677U (en) | 2017-05-25 | 2017-05-25 | Fully-automatic intelligent switch type control circuit of earth leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992677U true CN206992677U (en) | 2018-02-09 |
Family
ID=61394951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720638617.5U Active CN206992677U (en) | 2017-05-25 | 2017-05-25 | Fully-automatic intelligent switch type control circuit of earth leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206992677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086542A (en) * | 2017-05-25 | 2017-08-22 | 乐清市诚富电器科技有限公司 | Fully-automatic intelligent switch type control circuit of earth leakage and its method |
-
2017
- 2017-05-25 CN CN201720638617.5U patent/CN206992677U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086542A (en) * | 2017-05-25 | 2017-08-22 | 乐清市诚富电器科技有限公司 | Fully-automatic intelligent switch type control circuit of earth leakage and its method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106841876B (en) | A kind of monitoring method of relay protection outlet pressing plate | |
| CN106440393A (en) | Intelligent effluent outage control system and method | |
| CN102208306A (en) | Low-voltage intelligent circuit breaker | |
| CN206195342U (en) | Electric protection circuit and intelligence switch are got to single fire closed state | |
| CN107769159A (en) | A kind of earth leakage protective device, electrical leakage detecting method and a kind of charging equipment | |
| CN206992677U (en) | Fully-automatic intelligent switch type control circuit of earth leakage | |
| CN102023271A (en) | Spare power automatic switching logic test method for verifying automatic switching modes of high voltage side buscouple switch | |
| CN108011348A (en) | Low-voltage intelligent distribution Control protection system and its control guard method | |
| CN104167790B (en) | The charge control system and its charge control method of charger, mobile terminal | |
| CN109309991A (en) | A kind of control method, control device and control system | |
| CN205871777U (en) | Fill SDD control unit for electric pile | |
| CN206992676U (en) | A kind of zero sequence is inverted from locking-typed control circuit of earth leakage | |
| CN107086542A (en) | Fully-automatic intelligent switch type control circuit of earth leakage and its method | |
| CN202259066U (en) | Multipolar/monopolar low-voltage intelligent circuit breaker | |
| CN204144597U (en) | Self-inspection confession pattern insert row | |
| CN207320808U (en) | A kind of band full-automatic control circuit of earth leakage of overcurrent protective | |
| CN202949204U (en) | Intelligent fault detecting and elimination system of circuit breaker | |
| CN206992674U (en) | A kind of ground line current locking-type control circuit of earth leakage | |
| CN107768929A (en) | A kind of intelligent charge wiring board | |
| CN106981859A (en) | A kind of ground line current locking-type earth leakage protective device control method | |
| CN105162192B (en) | A kind of electric vehicle alternating-current charging device and its charge control method | |
| CN104502760B (en) | A kind of primary cut-out simulator and its application method | |
| CN206352899U (en) | A kind of intelligent water outlet power-off control system | |
| CN210724287U (en) | Co-charging locking device of three-phase and single-phase energy supplementing loop of energy storage charging device | |
| CN107681629A (en) | The full-automatic control circuit of earth leakage of one kind band overcurrent protective and its method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |