CN208539547U - A kind of smart circuit monitoring and protecting device - Google Patents
A kind of smart circuit monitoring and protecting device Download PDFInfo
- Publication number
- CN208539547U CN208539547U CN201820606042.3U CN201820606042U CN208539547U CN 208539547 U CN208539547 U CN 208539547U CN 201820606042 U CN201820606042 U CN 201820606042U CN 208539547 U CN208539547 U CN 208539547U
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- circuit
- inlet wire
- processing module
- mcu processing
- firewire
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Abstract
The utility model discloses a kind of smart circuit monitoring and protecting devices, the output end of power module is electrically connected with MCU processing module, grid zero line respectively with firewire current sampling circuit, the inlet wire of voltage sampling circuit connects, power grid firewire is connect with the inlet wire of leakage current sample circuit, the outlet of the inlet wire connection leakage current sample circuit of firewire current sampling circuit, the inlet wire of the outlet connection relay circuit of firewire current sampling circuit, MCU processing module connects relay circuit, the plant-grid connection line of MCU processing module connects power module, the ground wire of MCU processing module connects power module, MCU processing module is also electrically connected with leakage current sample circuit and voltage sampling circuit respectively, the inlet wire of the outlet connection electrical equipment of relay circuit.Can acquire the data such as the real-time leakage current of electrical equipment, voltage, electric current and power and the power on/off of electrical equipment is controlled, realizes the intelligent monitoring to circuit and control.
Description
Technical field
The utility model relates to power system technology more particularly to a kind of smart circuit monitoring and protecting devices.
Background technique
Fault is substantially the unbalanced a kind of state of energy conveyed in route, rather than route appears corrupted.
There are mainly three types of the types of fault: short trouble, leak current fault, overload fault.Short trouble is exactly that positive and negative anodes are direct-connected, electricity
Pressure moment becomes minimum or even approach is zero, and electric current moment becomes greatly, thus the receiving beyond route or terminal appliance
Range leads to dangerous situation；The most common type is that firewire, zero curve are direct-connected.Leak current fault is exactly the part that electric appliance should not connect electricity
Having certain to connect with circuit leads to the phenomenon that being powered；Commonly terminals connection is unstable, or dampness causes power transmission to arrive
Other positions of electric appliance.Overload fault is exactly the range that the electrical energy transmitted on one group of route has exceeded this group of route receiving；
Commonly multiple switch socket is also turned on electric appliance.Fault is substantially the performance of electrical energy transmission abnormality,
As long as conductor connection is not interrupted, this energy will be transmitted down always；As long as all can so there is the equipment that can be powered on the way
It is connected to and bears this abnormal energy.And these failures, especially short circuit and overload fault, often beyond equipment operation limit
Volume, it just necessarily will cause serious consequence of failure.The protection of fault must first block power transmission to stop destroying, and
The source component for generating failure is overhauled, to thoroughly eliminate the condition that failure occurs.
The method of existing disengagement failure transmission be exactly the circuit network segmentation entirely communicated using breaker one claim it is several
Independent region, to realize the blocking of line transmission.Disjunction control is also referred to as in industry.Disjunction control product be mainly
Breaker, breaker are again common with miniature circuit breaker.Miniature circuit breaker is divided into: earth leakage protective device, air switch, electronics current limliting
Device etc..
Wherein earth leakage protective device has electric leakage, short-circuit protection function.Air switch has short-circuit protection function.Electronics current limliting
Device is specific to circuit overloads protection.But these products can not adopt the data such as the real-time voltage of electrical equipment, electric current
Collection is not able to achieve and carries out intelligentized control method to circuit, can not accurately be made corresponding according to different electrical equipment and environment yet
On-off control.
Summary of the invention
The purpose of this utility model: in order to overcome the drawbacks of the prior art, the utility model provide one kind can to
Electric equipment is monitored, protects and the smart circuit monitoring and protecting device of energy control system of switching on or off electricity.
The technical solution of the utility model includes: including MCU processing module, leakage current sample circuit, firewire current sample
The input terminal of circuit, relay circuit, voltage sampling circuit and power module, the power module is electrically connected with grid zero line
With power grid firewire, the output end of the power module is electrically connected with the MCU processing module, grid zero line and the firewire electric current
The inlet wire of sample circuit connects, and power grid firewire is connect with the inlet wire of the leakage current sample circuit, grid zero line also with it is described
The inlet wire of voltage sampling circuit connects, and the inlet wire of the firewire current sampling circuit connects going out for the leakage current sample circuit
Line, the outlet of the firewire current sampling circuit connect the inlet wire of the relay circuit, described in the MCU processing module connection
The plant-grid connection line of relay circuit, the MCU processing module connects the power module, the ground wire of the MCU processing module
Power module is connected, the MCU processing module is also electrically connected with leakage current sample circuit and voltage sampling circuit respectively, institute
State the inlet wire of the outlet connection electrical equipment of relay circuit.
Further, MCU processing module be also respectively connected the UART communication port of external system data receiver line and
The data transmission line of UART communication port.
By adopting the above technical scheme, the data such as the real-time leakage current of electrical equipment, voltage, electric current and power can be acquired
, and the power on/off of electrical equipment can be controlled；Electricity consumption is set in the case where the abnormal conditions such as electric leakage, overvoltage/undervoltage, overload occur
Standby to carry out power-off protection, firewire current sampling circuit can disconnect electrical equipment and carry out power-off protection, realize the intelligence to circuit
Change and is monitored and controlled.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model specific embodiment；
Wherein, leakage current sample circuit 1, firewire current sampling circuit 2, relay circuit 3, voltage sampling circuit 4, electricity
Source module 5, MCU processing module 6, power grid firewire L, grid zero line N, a foot 10, two feet 20, three feet 30, four feet 40, five feet 50,
Six feet 60, seven feet 70, octal 80, nine feet 90, ten feet 100.
Specific embodiment
A kind of smart circuit monitoring and protecting device as shown in Figure 1 includes MCU processing module 6, leakage current sample circuit
1, firewire current sampling circuit 2, relay circuit 3, voltage sampling circuit 4, power module 5 and one to ten foot, power module 5
Input terminal be electrically connected with grid zero line N and power grid firewire L, the output end of power module 5 is electrically connected with MCU processing module 6, electricity
Net zero curve N access nine feet 90 simultaneously connect with the inlet wire of firewire current sampling circuit 2, power grid firewire L access one foot 10 and with electric leakage
The inlet wire of current sampling circuit 1 connects, and grid zero line N accesses ten feet 100 and connect with the inlet wire of voltage sampling circuit 4, two feet
20 are separately connected the outlet of the inlet wire of firewire current sampling circuit 2 and leakage current sample circuit 1, and three feet 30 are separately connected fire
The outlet of line current sample circuit 2 and the inlet wire of relay circuit 3, four feet 40 are separately connected MCU processing module 6 and relay
Device circuit 3, five feet 50 are separately connected the plant-grid connection line and power module 5 of MCU processing module 6, and six feet 60 are separately connected MCU
The ground wire and power module 5 of processing module 6, MCU processing module 60 are also adopted with leakage current sample circuit 1 and voltage respectively
Sample circuit 4 is electrically connected, the inlet wire of the outlet connection electrical equipment of relay circuit 3.MCU processing module 6 is adopted by leakage current
Sample circuit 1, firewire current sampling circuit 2 and voltage sampling circuit 4 monitor the electricity consumption real time information of electrical equipment, MCU processing
Module 6 carries out the control of 3 open and close of relay circuit to relay circuit 3 by four feet 40, to reach to electrical equipment
Control system of switching on or off electricity.In use, abnormal conditions occur causes temperature anomaly excessively high to firewire current sampling circuit 2, can stand
Circuit is cut off, to protect the safety in circuit use.Seven feet 70 connect the data receiver of the UART communication port of external system
Line, octal 80 connect the data transmission line of the UART communication port of external system, and the utility model has also reserved UART communication port, outside
Portion's system can carry out data communication by UART and the utility model.
The utility model has overload protection function, can have different delay protections according to different running current ranges
Mechanism, then power-off protection, reaction time are in 0.1 second, relative to general breaker to more than 1.5 times rated current immediately
In 30 seconds reaction time, the reaction time, which has, greatly to be shortened.Different running current ranges, there is the machine of different delay protections
System the generation of accidentally protection can occur to avoid discovery current fluctuation under many normal circuit applicable cases.According to different use
Different overload decision thresholds is flexibly arranged by MCU processing module 6 for electric equipment and environment, it is ensured that reasonable reliable mistake
Carry protection.It has been also equipped with the high-precision electric leakage sample rate current circuit 1 of earth leakage protective, has flexibly been controlled by MCU processing module 6
Earth leakage protective threshold values.Different earth leakage protective threshold values can be set according to different power utilization environments, and have integrated electric leakage
Self-checking function is protected, user periodically the earth leakage protective to the utility model can carry out self-test, have ensured that the leakage of the utility model
Function is protected normally to execute.The utility model can also connect prompt warning circuit, be particularly suitable in concealed wire circuit, access some area
In the circuit in domain, when any fault occurs in the region, these failures are precisely protected in the case where total lock is not jumped
Shield, and warning note fault type can be passed through.
Claims (2)
1. a kind of smart circuit monitoring and protecting device, it is characterised in that: include MCU processing module, leakage current sample circuit, fire
Line current sample circuit, relay circuit, voltage sampling circuit and power module, the input terminal electrical connection of the power module
There are grid zero line and power grid firewire, the output end of the power module is electrically connected with the MCU processing module, grid zero line and institute
The inlet wire connection of firewire current sampling circuit is stated, power grid firewire is connect with the inlet wire of the leakage current sample circuit, power grid zero
Line is also connect with the inlet wire of the voltage sampling circuit, and the inlet wire of the firewire current sampling circuit connects the leakage current and adopts
The outlet of sample circuit, the outlet of the firewire current sampling circuit connect the inlet wire of the relay circuit, and the MCU handles mould
Block connects the relay circuit, and the plant-grid connection line of the MCU processing module connects the power module, the MCU processing
The ground wire of module connects power module, and the MCU processing module is also electric with leakage current sample circuit and voltage sample respectively
Road electrical connection, the inlet wire of the outlet connection electrical equipment of the relay circuit.
2. a kind of smart circuit monitoring and protecting device according to claim 1, it is characterised in that: the MCU processing module is also
It is connected separately with the data receiver line of the UART communication port of external system and the data transmission line of UART communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606042.3U CN208539547U (en) | 2018-04-26 | 2018-04-26 | A kind of smart circuit monitoring and protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606042.3U CN208539547U (en) | 2018-04-26 | 2018-04-26 | A kind of smart circuit monitoring and protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208539547U true CN208539547U (en) | 2019-02-22 |
Family
ID=65396697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820606042.3U Active CN208539547U (en) | 2018-04-26 | 2018-04-26 | A kind of smart circuit monitoring and protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208539547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493898A (en) * | 2018-04-26 | 2018-09-04 | 浙江智美电气有限公司 | A kind of smart circuit monitoring and protecting device |
| CN114325222A (en) * | 2021-12-09 | 2022-04-12 | 山西三友和智慧信息技术股份有限公司 | Electronic device failure monitoring protection control system |
-
2018
- 2018-04-26 CN CN201820606042.3U patent/CN208539547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493898A (en) * | 2018-04-26 | 2018-09-04 | 浙江智美电气有限公司 | A kind of smart circuit monitoring and protecting device |
| CN114325222A (en) * | 2021-12-09 | 2022-04-12 | 山西三友和智慧信息技术股份有限公司 | Electronic device failure monitoring protection control system |
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