CN108923371A - A kind of electric device with self-shield control - Google Patents
A kind of electric device with self-shield control Download PDFInfo
- Publication number
- CN108923371A CN108923371A CN201810527835.0A CN201810527835A CN108923371A CN 108923371 A CN108923371 A CN 108923371A CN 201810527835 A CN201810527835 A CN 201810527835A CN 108923371 A CN108923371 A CN 108923371A
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- China
- Prior art keywords
- module
- self
- electric device
- current
- charge
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/042—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned combined with means for locating the fault
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to technical field of power systems, and more particularly, to a kind of electric device with self-shield control, including the overcurrent protection switch being mounted in power supply line, which opens and be in series with current over-load protector on a；The current over-load protector includes current input module, current conversion module and charge-discharge test module；The charge-discharge test module includes the charge protection unit being sequentially connected in series, charge storage unit, discharge cell and the current sensor connecting with discharge cell；It is parallel with central processing module on the overcurrent protection switch, communication module is connected on central processing module.
Description
Technical field
The invention belongs to technical field of power systems, fills more particularly, to a kind of electric power with self-shield control
It sets.
Background technique
In the prior art, electrical system needs prevent the over-voltage as caused by failure in such an electrical system.These
Failure can generate the electric current for being significantly larger than normal value and voltage and the safety margin for exceeding them across key equipment.Example
Such as, ground fault can be undergone corresponding to the electric system of the example of critical infrastructures, ground fault leads to high voltage signal quilt
Ground connection causes current spike by equipment, and often results in the damage of critical electrical equipment.Monitoring room is in electrical system in event
Barrier fault message prompt not any before occurring, and after failure power-off, control room also can not often obtain accurately in time
Message, cause processing the reaction time it is slow, influence the normal operation of electric system.
Summary of the invention
The invention will solve the problems, such as to be intended to overcome above-mentioned defect existing in the prior art, propose that one kind has
The electric device of self-shield control.
In order to solve the above technical problems, what the technical solution of the invention was realized in：
A kind of electric device with self-shield control, including the overcurrent protection switch being mounted in power supply line, the mistake
It carries to protect to open and is in series with current over-load protector on a；The current over-load protector includes current input module, electric current conversion
Module and charge-discharge test module；The charge-discharge test module includes the charge protection unit being sequentially connected in series, charge storage unit, puts
Electric unit and the current sensor being connect with discharge cell；It is parallel with central processing module on the overcurrent protection switch,
Communication module is connected on central processing module.
Further, the communication module include can be with the wireless transmit/receive units of monitoring room telecommunication.
Further, the charge storage unit include the adjustment circuit being adjusted for the battery capacity to storage and
The information of battery pack is transmitted to the control chip of central processing unit.
Further, the power supply line is in overcurrent protection switch user terminal side equipped with emergency service module, the emergency
Power supply module includes the charge/discharge unit connected in battery backup and battery backup.
Further, the battery backup uses lithium battery, and the lithium battery uses nickel cobalt manganese, LiMn2O4, ferrous phosphate
Lithium or iron lithium.
Further, the current sensor uses MRCS sensor.
Further, the side that the overcurrent protection switch is in power grid end is connected with earthing module, the earthing module packet
It includes for determining that current threshold is greater than the control unit of preset value and what is connect with communication module is used for what abnormal signal was sent
Processor.
Further, hall effect current sensor is equipped between the central processing module and mains-power circuit.
Further, be connected with control circuit unit on the overcurrent protection switch, the control circuit include logic controller,
Power frequency measuring appliance and protective calibration device；The power frequency measuring appliance is used to carry out frequency measurement, institute to the power frequency component after shaping
Current signal information of the protective calibration device for after disconnecting overcurrent protection switch is stated to reaffirm.
Further, the protective shell of door body is equipped on the outside of the overcurrent protection switch, which is equipped with shielded layer.
The invention has the advantages and positive effects of：
The invention design rationally, the perfect self-shield ability of electric system, and it is possible to occur in fault
Moment, curent change information is sent to control room by communication module rapidly, can in time, accurately reacted, to the greatest extent
It is possible to reduce the loss of system failure bring.Set battery backup has certain cruising ability, can be in event
When barrier power-off, continues power supply a period of time, effectively equipment is avoided to be damaged by rush of current.
Detailed description of the invention
Fig. 1 is the structure composition schematic diagram of the invention.
Specific embodiment
It should be noted that the feature in embodiment and embodiment in the case where not colliding, in the invention
It can be combined with each other.
Detailed description of specific embodiments of the invention is provided below.
A kind of electric device with self-shield control, as shown in Figure 1, including the overload protection being mounted in power supply line
Switch, the overload protection are opened and are in series with current over-load protector on a；The current over-load protector include current input module,
Current conversion module and charge-discharge test module；The charge-discharge test module includes the charge protection unit being sequentially connected in series, storage
Electric unit, discharge cell and the current sensor being connect with discharge cell；Centre is parallel on the overcurrent protection switch
Module is managed, communication module is connected on central processing module.
In general, include in communication module can be with the wireless transmit/receive units of monitoring room telecommunication.It should be noted that can be with
Hall effect current sensor is equipped between the central processing module and mains-power circuit.
Above-mentioned charge storage unit includes the adjustment circuit being adjusted for the battery capacity to storage and by battery pack
Information be transmitted to the control chip of central processing unit.During normal power supply, pass through the battery to storage
The continuous charge and discharge of group carry out the detection of current value size in charge and discharge process, meanwhile, the battery pack of storage has electric current
The stability of electric current transmission is effectively guaranteed in certain stabilization, prevents the impact of electric current, damages equipment.
In an alternative embodiment, overcurrent protection switch user terminal side is in above-mentioned power supply line be equipped with emergency
Power supply module, the emergency service module include the charge/discharge unit connected in battery backup and battery backup.Reserve battery
Group uses lithium battery, and the lithium battery uses nickel cobalt manganese, LiMn2O4, LiFePO 4 or iron lithium.
Above-mentioned current sensor can usually use MRCS sensor, can effectively detect the real-time change of electric current,
And the information of curent change is fed back to central processing unit.
The side that above-mentioned overcurrent protection switch is in power grid end is connected with earthing module, and the earthing module includes for true
The processor sent for abnormal signal that constant current threshold value is greater than the control unit of preset value and connect with communication module.
When encountering electric current shakiness, in the case where especially having super-high-current impact, earthing module can unload rapidly electric current, prevent
Only electric system is damaged by rush of current, effectively protects electric system.
It is connected with control circuit unit on above-mentioned overcurrent protection switch, which includes logic controller, power frequency survey
Measuring device and protective calibration device；The power frequency measuring appliance is used to carry out frequency measurement, the protection to the power frequency component after shaping
Current signal information after checker is used to disconnect overcurrent protection switch is reaffirmed.
In an alternative embodiment, the protective shell of door body is equipped on the outside of the overcurrent protection switch, outside the protective shell
Surface is equipped with shielded layer.Using protective shell, effectively overcurrent protection switch can be protected, avoided accidental collision and electric
Magnetic disturbance, and influence normal using effect.
The invention design rationally, the perfect self-shield ability of electric system, and it is possible to occur in fault
Moment, curent change information is sent to control room by communication module rapidly, can in time, accurately reacted, to the greatest extent
It is possible to reduce the loss of system failure bring.Set battery backup has certain cruising ability, can be in event
When barrier power-off, continues power supply a period of time, effectively equipment is avoided to be damaged by rush of current.
It is obvious to a person skilled in the art that the invention is not limited to the details of above-mentioned exemplary embodiment, and
And without departing substantially from the spirit or essential attributes of the invention, wound that the present invention can be realized in other specific forms
It makes.
Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this
The range of innovation and creation is indicated by the appended claims rather than the foregoing description, it is intended that equally wanting for claim will be fallen in
All changes in the meaning and scope of part are included in the invention.Any appended drawing reference in claim should not be regarded
To limit the claims involved.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of electric device with self-shield control, it is characterised in that：Including the overload protection being mounted in power supply line
Switch, the overload protection are opened and are in series with current over-load protector on a；The current over-load protector include current input module,
Current conversion module and charge-discharge test module；The charge-discharge test module includes the charge protection unit being sequentially connected in series, storage
Electric unit, discharge cell and the current sensor being connect with discharge cell；Centre is parallel on the overcurrent protection switch
Module is managed, communication module is connected on central processing module.
2. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The communication module
Including can be with the wireless transmit/receive units of monitoring room telecommunication.
3. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The charge storage unit
Central processing is transmitted to including the adjustment circuit being adjusted for the battery capacity to storage and by the information of battery pack
The control chip of unit.
4. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The power supply line
It is equipped with emergency service module in overcurrent protection switch user terminal side, which includes battery backup and spare
The charge/discharge unit connected in battery pack.
5. a kind of electric device with self-shield control according to claim 4, it is characterised in that：The reserve battery
Group uses lithium battery, and the lithium battery uses nickel cobalt manganese, LiMn2O4, LiFePO 4 or iron lithium.
6. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The current sense
Device uses MRCS sensor.
7. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The overload protection
Switch is connected with earthing module in the side at power grid end, and the earthing module includes for determining that current threshold is greater than preset value
Control unit and connect with communication module for abnormal signal send processor.
8. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The central processing
Hall effect current sensor is equipped between module and mains-power circuit.
9. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The overload protection
Control circuit unit is connected on switch, which includes logic controller, power frequency measuring appliance and protective calibration device；Institute
Power frequency measuring appliance is stated for carrying out frequency measurement to the power frequency component after shaping, the protective calibration device is for opening overload protection
Current signal information after shutdown is opened is reaffirmed.
10. a kind of electric device with self-shield control according to claim 1, it is characterised in that：The overload is protected
Shield switch outside is equipped with the protective shell of door body, which is equipped with shielded layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527835.0A CN108923371A (en) | 2018-05-29 | 2018-05-29 | A kind of electric device with self-shield control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527835.0A CN108923371A (en) | 2018-05-29 | 2018-05-29 | A kind of electric device with self-shield control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108923371A true CN108923371A (en) | 2018-11-30 |
Family
ID=64418253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527835.0A Pending CN108923371A (en) | 2018-05-29 | 2018-05-29 | A kind of electric device with self-shield control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811072A (en) * | 2020-07-10 | 2020-10-23 | 柒贰零（北京）健康科技有限公司 | Indoor air purification method and system combining indoor and outdoor pollutant states |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101372557B1 (en) * | 2012-09-26 | 2014-03-07 | 김광열 | Alarm system for breaking of over load protector in heating cable control box |
| CN105406733A (en) * | 2015-12-09 | 2016-03-16 | 武汉思坦达电子科技有限公司 | Printed circuit board-based power converter |
| CN106154205A (en) * | 2015-03-24 | 2016-11-23 | 王志忠 | Multifunctional electric energy metering Site Detection load box |
| CN107565687A (en) * | 2017-09-29 | 2018-01-09 | 刘国章 | A kind of emergency protection system of power equipment |
| CN107634575A (en) * | 2017-09-29 | 2018-01-26 | 刘国章 | A kind of transformer station meets an urgent need monitoring system |
-
2018
- 2018-05-29 CN CN201810527835.0A patent/CN108923371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101372557B1 (en) * | 2012-09-26 | 2014-03-07 | 김광열 | Alarm system for breaking of over load protector in heating cable control box |
| CN106154205A (en) * | 2015-03-24 | 2016-11-23 | 王志忠 | Multifunctional electric energy metering Site Detection load box |
| CN105406733A (en) * | 2015-12-09 | 2016-03-16 | 武汉思坦达电子科技有限公司 | Printed circuit board-based power converter |
| CN107565687A (en) * | 2017-09-29 | 2018-01-09 | 刘国章 | A kind of emergency protection system of power equipment |
| CN107634575A (en) * | 2017-09-29 | 2018-01-26 | 刘国章 | A kind of transformer station meets an urgent need monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811072A (en) * | 2020-07-10 | 2020-10-23 | 柒贰零（北京）健康科技有限公司 | Indoor air purification method and system combining indoor and outdoor pollutant states |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |