CN107359694A - Backup type contactor maintenance adaptively anti-shake electric installation and its method - Google Patents
Backup type contactor maintenance adaptively anti-shake electric installation and its method Download PDFInfo
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- CN107359694A CN107359694A CN201710734076.0A CN201710734076A CN107359694A CN 107359694 A CN107359694 A CN 107359694A CN 201710734076 A CN201710734076 A CN 201710734076A CN 107359694 A CN107359694 A CN 107359694A
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- positive pole
- switch
- negative pole
- magnetic red
- switching switch
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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
- H02J9/06—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 with automatic change-over, e.g. UPS systems
- H02J9/061—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 with automatic change-over, e.g. UPS systems for DC powered loads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
A kind of adaptive anti-shake electric installation of backup type contactor maintenance, including storage capacitor, magnetic red switching switch, standby direct current supply module and controller, the magnetic red switching switch is with the main contacts being connected with the first end of contactor coil, the normally-closed contact being connected with the positive pole of the external ac power source and the normally opened contact being connected with the positive pole of the positive pole of the storage capacitor and standby direct current supply module, the positive pole and negative pole of the storage capacitor are connected with the positive pole and negative pole of the external ac power source respectively, second end of the contactor coil and the negative pole of the external ac power source, the negative pole of storage capacitor and the negative pole connection of standby direct current supply module, the controller and magnetic red switching switch connection.The present invention can adaptive contactor capacity, really realize the anti-shake electricity of backup type.
Description
Technical field
The present invention relates to anti-shake electro-technical field, more particularly to a kind of adaptive anti-shake Denso of backup type contactor maintenance
Put and its method.
Background technology
Problems be present in the existing anti-shake electric maintenance device of contactor：
1st, the anti-shake electric installation of tradition is mounted in drawout cubicle, because drawer panel is small, leads to not install man-machine interaction
Panel, therefore device, so must be pulled the drawer out in operation, in Electric Design, must be drawn all installed in drawer
Holding drawer power supply can power off, and lead to not operate device.Traditional coping style is that anti-shake electric installation is removed into operation, is led
Cause to safeguard and operation workload is big, bring cost of labor largely to consume.Patent (anti-shake electric installation adaptive control system and its control
Method processed, CN201310613038.1), patent (a kind of anti-shake electric module and its control method using bypass mode,
CN201310591575.0), patent (the intelligent trip control system and its control method of voltage shock avoiding module,
CN201310610955.4) and patent (a kind of anti-shake electric contactor time-delay mechanism, CN201410220204.6) is not examined
Consider the problem.
2nd, the anti-shake electric installation of tradition can not adapt to contactor capacity automatically, it is necessary to according to different contactor different capabilities, more
Wiring or adjustment setting parameter are put in repacking, cause debugging maintenance numerous and diverse, difficulty is big.Patent (anti-shake electric installation Self Adaptive Control
System and its control method, CN201310613038.1) propose to carry out current automatic adaptation, but contactor using software calculation
Even if same specification, electric current is kept there is also difference, therefore the reliability maintained is not high, it is difficult in actual product application.
3rd, the anti-shake electric installation of tradition can not really realize the anti-shake electricity of backup type.Patent is (a kind of using the anti-shake of bypass mode
Electric module and its control method, CN201310591575.0) propose bypass (standby) circuit, employ relay as switching
Switch, because current relay switching minimum time is in more than 7ms, contactor can be kept for voltage pulsation, but for electricity
Pressure rapid drawdown L-type is fallen, and contactor is difficult to keep, especially Large Copacity contactor, therefore its application is restricted, and switches
Journey contacts of contactor has jitter phenomenon.Patent (the intelligent trip control system and its control method of voltage shock avoiding module,
CN201310610955.4) and patent (anti-shake electric installation adaptive control system and its control method,
CN201310613038.1 the circuit) proposed, in normal operation, IGBT is sealed in into contactor loop, once device drives
Then IGBT's failure can not work, now contactor can not normal operation, therefore be not bypass type truly, in device therefore
Contactor is influenceed during barrier.
The content of the invention
Based on this, for above-mentioned technical problem, there is provided a kind of backup type contactor maintenance adaptively anti-shake electric installation and
Its method.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of backup type contactor maintenance adaptively anti-shake electric installation, including storage capacitor, magnetic red switching switch, standby
Direct current supply module and controller, magnetic red switching switch with the main contacts being connected with the first end of contactor coil,
The normally-closed contact that is connected with the positive pole of the external ac power source and supplied with the positive pole of the storage capacitor and standby direct current
The normally opened contact of the positive pole connection of electric module, the positive pole and negative pole of the storage capacitor respectively with the external ac power source
Positive pole and negative pole connection, the second end of the contactor coil and the negative pole of the external ac power source, storage capacitor it is negative
The negative pole of pole and standby direct current supply module connects, the controller and magnetic red switching switch connection.
This programme also includes being used for the toggle switch for setting the anti-shake electric time, and the toggle switch connects with the controller
Connect, and the toggle switch has two-position switch, its time setting range is the 0-9.9 seconds.
The magnetic red switching switch is using high-pressure mercury magnetic red switching switch.
This programme also includes charging resistor, charging diode and discharge diode, one end of the charging resistor and institute
The positive pole connection of charging diode is stated, the other end is used to be connected with the positive pole of the external ac power source, the charging diode
Negative pole be connected with the positive pole of the storage capacitor, the positive pole of the discharge diode is connected with the positive pole of the storage capacitor,
Negative pole is connected with the normally opened contact of first magnetic red switching switch.
This programme also includes anti-reverse diode and fly-wheel diode, the positive pole of the anti-reverse diode with it is described after
The positive pole connection of standby direct current supply module, negative pole are connected with the normally opened contact of magnetic red switching switch, the fly-wheel diode
Positive pole be connected with the second end of the contactor coil, the normally opened contact of negative pole and first magnetic red switching switch is connected.
This programme further relates to a kind of adaptive current interference prevention method of backup type contactor maintenance, including：
The first end of the main contacts of magnetic red switching switch and contactor coil is connected, normally-closed contact and external ac power source
Positive pole connection, the positive pole connection of the positive pole and standby direct current supply module of normally opened contact and storage capacitor, energy storage electricity
The positive pole and negative pole of appearance are connected with the positive pole and negative pole of the external ac power source respectively, and the second of the contactor coil
End is connected with the negative pole of the negative pole of the external ac power source, the negative pole of storage capacitor and standby direct current supply module, is controlled
Device and magnetic red switching switch connection, make the contactor coil be powered by the external ac power source；
The external ac power source power supply is charged in power supply process for the storage capacitor；
After the controller receives and shakes electric signal, anti-shake electric treatment is carried out：
According to the default anti-shake electric time, timing is carried out；
The magnetic red switching switch is controlled by the controller, the main contacts of the magnetic red switching switch is touched from normally closed
Point switches to spark to the contactor coil with normally opened contact adhesive, the storage capacitor, keeps connecing with DC pulse
The adhesive of tentaculum contact, after electric discharge terminates, the standby direct current supply module provides to the contactor coil and keeps voltage；
If when anti-shake electric time inside and outside voltage recovers, the anti-shake electric time terminates or receives anti-shake electric exit instruction,
Magnetic red switching switch is then controlled by the controller, the main contacts of the magnetic red switching switch is switched respectively from normally opened contact
Extremely with normally-closed contact adhesive, powered from the external ac power source to contactor coil.
This programme also includes：
8421 yards of toggle switch are read by the controller, and is scaled the time, using the time as default anti-
Shake the electric time, the toggle switch has two-position switch, and the toggle switch is connected with the controller, and the toggle switch has
There is two-position switch, its time setting range is the 0-9.9 seconds, and the toggle switch is arranged to 00 and represents anti-shake electric exit instruction.
The magnetic red switching switch is using high-pressure mercury magnetic red switching switch.
The present invention can adaptive contactor capacity, really realize the anti-shake electricity of backup type.
Brief description of the drawings
The present invention is described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the schematic diagram of the toggle switch of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, a kind of backup type contactor maintenance adaptively anti-shake electric installation, including storage capacitor
C, magnetic red switching switch K1, standby direct current supply module DC and controller W.
After storage capacitor C positive pole and negative pole are connected with external ac power source AC positive pole and negative pole, it can be filled
Electricity.
Magnetic red switching switch K1 has the main contacts a being connected with contactor coil KM first end and external ac power source
The normally-closed contact b and be connected with the positive pole of storage capacitor C positive pole and standby direct current supply module DC that AC positive pole connects
Normally opened contact c, contactor coil KM the second end and external ac power source AC negative pole, storage capacitor C negative pole and after
Standby direct current supply module DC negative pole connection, controller W switch switch K1 with magnetic red and are connected.
Specifically, the present invention is also provided with charging resistor R, charging diode D1 and discharge diode D2, charging resistor R
One end be connected with charging diode D1 positive pole, the other end be used for be connected with external ac power source AC positive pole, charging two poles
Pipe D1 negative pole is connected with storage capacitor C positive pole, and discharge diode D2 positive pole is connected with storage capacitor C positive pole, negative pole
The normally opened contact c for switching switch K1 with magnetic red is connected.
When storage capacitor C charges, its charged diode D1 and charging resistor R and external ac power source AC positive pole
Connection, current limliting and protection are carried out, in electric discharge, repid discharge path is provided by discharge diode D2.
Specifically, the present invention is also provided with anti-reverse diode D3 and sustained diode 4, anti-reverse diode D3's
Positive pole is connected with standby direct current supply module DC positive pole, and the normally opened contact c that negative pole switches switch K1 with magnetic red is connected, and is prevented anti-
Fill, the positive pole of sustained diode 4 is connected with contactor coil KM the second end, normally opened the touching of negative pole and magnetic red switching switch K1
Point c connections, afterflow effect is played, with the back-emf voltage of limiting coil, protection circuit.
The present invention is using magnetic red switching switch, long lifespan, it is not easy to damage.
Preferably, magnetic red switching switch K1 is using high-pressure mercury magnetic red switching switch, quick action, operating time scope
100 μ s to 300 μ s, switching high pressure reach upper kilovolt, and mercury contact has big contactor ability, unlike common relay is easy
Adhesion is burnt out, this feature ensure that the long-life of switch two-way contact.
In order to set the anti-shake electric time, the present invention is also provided with toggle switch K2, and toggle switch K2 is connected with controller W,
And toggle switch K2 has a two-position switch, first toggle switch represents the second, and second toggle switch represents 0.1 second, at that time
Between setting range be the 0-9.9 seconds.If two toggle switch are arranged to 00, then it represents that anti-shake Electricity Functional exits.
The present invention can be debugged, the present invention is realized without electricity as a result of toggle switch in the case of no electricity
Debugging, without considering installation site, mitigate debugging difficulty, debug time and debugging cost significantly, be particularly suitable for drawout cubicle.
In use, the main contacts a that magnetic red is switched to switch K1 is connected with contactor coil KM first end, normally-closed contact b
It is connected with external ac power source AC positive pole, normally opened contact c and storage capacitor C positive pole and standby direct current supply module DC
Positive pole is connected, and storage capacitor C positive pole and negative pole are connected with external ac power source AC positive pole and negative pole respectively, contactor
Coil KM the second end and external ac power source AC negative pole, storage capacitor C negative pole and standby direct current supply module DC
Negative pole connects, and controller W switches switch K1 with magnetic red and is connected, and contactor coil KM is powered by external ac power source AC.
In power supply process, external ac power source AC charges for storage capacitor C.
After controller W is received and shaken electric signal, anti-shake electric treatment is carried out：
1st, according to the default anti-shake electric time, timing is carried out.
2nd, magnetic red switching switch K1 is controlled by controller W, magnetic red switching switch K1 main contacts a is cut from normally-closed contact b
Shift to normally opened contact c adhesives, from standby direct current supply module DC to contactor coil KM power：
Now, contactor coil KM is given in storage capacitor C energy abrupt release, and contactor is kept with strong DC pulse
Contact adhesive, after electric energy release, standby direct current supply module DC is provided to contactor coil and is kept voltage naturally.
It is pointed out that the magnetic red switching switch K1 initial adhesive of normally-closed contact b and main contacts a, from external communication electricity
Source AC obtain it is electric after, under controller W control, normally-closed contact b and main contacts a still adhesives, when controller W receives rolling electric signal
Afterwards, controller W controls main contacts a and normally opened contact c adhesives, if internal fault occurs for apparatus of the present invention or damage, magnetic red are cut
Changing switch K1 can not obtain electric, and because b is normally-closed contact, c is normally opened contact, and now, without controller W control, main contacts a is just
It can switch from normally opened contact c as normally-closed contact b, therefore on hardware mode contactor can be made to automatically switch to external ac power source
AC powers.
If the 3rd, recover in anti-shake electric time inside and outside voltage, the anti-shake electric time terminate (no matter external voltage whether recover) or
When person receives anti-shake electric exit instruction, then magnetic red switching switch K1 is controlled by controller W, touch magnetic red switching switch K1 master
Point a from normally opened contact c switch to normally-closed contact b adhesives, from external ac power source AC to contactor coil KM power.
Wherein, 8421 yards that toggle switch K2 is read by controller W of the invention, and the time is scaled, the time is made
For the default anti-shake electric time, toggle switch K2 has two-position switch, and its time setting range is the 0-9.9 seconds, toggle switch K2
It is connected with controller W.
Toggle switch K2 is arranged to 00 and represents anti-shake electric exit instruction.
Using the anti-shake electric installation of the present invention, for contactor coil KM by external ac power source AC, device is in standby when normal
With state, within the anti-shake electric time, contactor coil KM is switched to standby direct current supply module DC by device, in the anti-shake electric time
Arrive or anti-shake electric time inside and outside voltage recover when, contactor coil KM is switched to external ac power source AC by device again.Typically
The rolling electricity of factory seldom occurs within the several seconds, and apparatus of the present invention only work within a very short time, therefore service life is big
It is big to extend.If other device internal fault damage, contactor will automatically switch to external ac power source AC on hardware mode
Power supply, and anti-shake Electricity Functional automatically exits from hardware mode.Therefore plant failure does not influence the normal operating of contactor, real
Backup type in existing physical significance.
Adaptive contactor capacity of the invention, for the contactor of different capabilities, without more arrange parameter or wiring is changed,
Simplify type selecting, reduce Parts Inventory, the time for reducing installation and debugging and difficulty, reduce product maintenance workload.
But those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
Invention, and be not used as limitation of the invention, as long as in the spirit of the present invention, to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (8)
1. the adaptive anti-shake electric installation of a kind of backup type contactor maintenance, it is characterised in that switch including storage capacitor, magnetic red
Switch, standby direct current supply module and controller, the magnetic red switching switch has to be connected with the first end of contactor coil
Main contacts, the normally-closed contact that is connected with the positive pole of the external ac power source and with the positive pole of the storage capacitor and after
The normally opened contact of the positive pole connection of standby direct current supply module, the positive pole and negative pole of the storage capacitor are handed over the outside respectively
Flow positive pole and negative pole connection, the second end of the contactor coil and the negative pole of the external ac power source, the energy storage of power supply
The negative pole of electric capacity and the negative pole connection of standby direct current supply module, the controller and magnetic red switching switch connection.
2. the adaptive anti-shake electric installation of a kind of backup type contactor maintenance according to claim 1, it is characterised in that also
Including the toggle switch for setting the anti-shake electric time, the toggle switch is connected with the controller, and the toggle switch has
There is two-position switch, its time setting range is the 0-9.9 seconds.
Adaptively 3. anti-shake electric installation, its feature exist a kind of backup type contactor maintenance according to claim 1 or 2
In the magnetic red switching switch is using high-pressure mercury magnetic red switching switch.
Adaptively 4. anti-shake electric installation, its feature exist a kind of backup type contactor maintenance according to claim 1 or 2
In, in addition to charging resistor, charging diode and discharge diode, one end of the charging resistor and the charging diode
Positive pole connection, the other end be used for be connected with the positive pole of the external ac power source, the negative pole of the charging diode with it is described
The positive pole connection of storage capacitor, the positive pole of the discharge diode is connected with the positive pole of the storage capacitor, negative pole and described the
The normally opened contact connection of one magnetic red switching switch.
5. the adaptive anti-shake electric installation of a kind of backup type contactor maintenance according to claim 4, it is characterised in that also
Including anti-reverse diode and fly-wheel diode, the positive pole of the anti-reverse diode and the standby direct current supply module
Positive pole is connected, and negative pole is connected with the normally opened contact of magnetic red switching switch, and the positive pole of the fly-wheel diode contacts with described
The second end connection of device coil, negative pole are connected with the normally opened contact of first magnetic red switching switch.
A kind of 6. adaptive current interference prevention method of backup type contactor maintenance, it is characterised in that including：
The first end of the main contacts of magnetic red switching switch and contactor coil is connected, normally-closed contact and external ac power source are just
Pole connects, the positive pole connection of the positive pole and standby direct current supply module of normally opened contact and storage capacitor, the storage capacitor
Positive pole and negative pole are connected with the positive pole and negative pole of the external ac power source respectively, the second end of the contactor coil with
The negative pole of the external ac power source, the negative pole of storage capacitor and standby direct current supply module negative pole connection, controller with
The magnetic red switching switch connection, makes the contactor coil be powered by the external ac power source；
The external ac power source power supply is charged in power supply process for the storage capacitor；
After the controller receives and shakes electric signal, anti-shake electric treatment is carried out：
According to the default anti-shake electric time, timing is carried out；
The magnetic red switching switch is controlled by the controller, the main contacts of the magnetic red switching switch is cut from normally-closed contact
Shift to and sparked with normally opened contact adhesive, the storage capacitor to the contactor coil, contactor is kept with DC pulse
Contact adhesive, after electric discharge terminates, the standby direct current supply module provides to the contactor coil and keeps voltage；
If when anti-shake electric time inside and outside voltage recovers, the anti-shake electric time terminates or receives anti-shake electric exit instruction, lead to
Cross controller control magnetic red switching switch, make the main contacts of the magnetic red switching switch respectively from normally opened contact switch to
Normally-closed contact adhesive, powered from the external ac power source to contactor coil.
7. a kind of adaptive current interference prevention method of backup type contactor maintenance according to claim 6, it is characterised in that also
Including：
8421 yards of toggle switch are read by the controller, and is scaled the time, using the time as default anti-shake electricity
Time, the toggle switch have two-position switch, and the toggle switch is connected with the controller, and the toggle switch has two
Bit switch, its time setting range are the 0-9.9 seconds, and the toggle switch is arranged to 00 and represents anti-shake electric exit instruction.
8. a kind of adaptive current interference prevention method of backup type contactor maintenance according to claim 6 or 7, its feature exist
In the magnetic red switching switch is using high-pressure mercury magnetic red switching switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734076.0A CN107359694B (en) | 2017-08-24 | 2017-08-24 | Backup contactor holding type self-adaptive anti-interference device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734076.0A CN107359694B (en) | 2017-08-24 | 2017-08-24 | Backup contactor holding type self-adaptive anti-interference device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107359694A true CN107359694A (en) | 2017-11-17 |
| CN107359694B CN107359694B (en) | 2023-05-16 |
Family
ID=60288674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710734076.0A Active CN107359694B (en) | 2017-08-24 | 2017-08-24 | Backup contactor holding type self-adaptive anti-interference device and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107359694B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
| CN110336356A (en) * | 2019-07-12 | 2019-10-15 | 山东大骋医疗科技有限公司 | The intelligent charging system and method for new energy Medical Devices |
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| CN203632205U (en) * | 2013-11-22 | 2014-06-04 | 珠海万力达电气股份有限公司 | Anti-fluctuation module operating in bypass mode |
| CN204559114U (en) * | 2015-05-14 | 2015-08-12 | 国家电网公司 | A.C. contactor reactance voltage falls control module |
| WO2015131578A1 (en) * | 2014-09-22 | 2015-09-11 | 中兴通讯股份有限公司 | Circuit for prohibiting reverse connection of telecom power supply storage battery and telecom power supply control system |
| CN207218364U (en) * | 2017-08-24 | 2018-04-10 | 上海一德电气科技有限公司 | A kind of adaptive anti-shake electric installation of backup type contactor maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2733573Y (en) * | 2004-06-15 | 2005-10-12 | 梁武兴 | Anti-flashover AC contactor |
| CN201556967U (en) * | 2009-08-06 | 2010-08-18 | 江苏斯菲尔电气有限公司 | Electric-dazzling preventive power unit |
| CN103560476A (en) * | 2013-11-22 | 2014-02-05 | 珠海万力达电气股份有限公司 | Anti-interference electricity module in bypass mode and control method of anti-interference electricity module |
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| WO2015131578A1 (en) * | 2014-09-22 | 2015-09-11 | 中兴通讯股份有限公司 | Circuit for prohibiting reverse connection of telecom power supply storage battery and telecom power supply control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
| CN110336356A (en) * | 2019-07-12 | 2019-10-15 | 山东大骋医疗科技有限公司 | The intelligent charging system and method for new energy Medical Devices |
| CN110336356B (en) * | 2019-07-12 | 2021-03-16 | 山东大骋医疗科技有限公司 | Intelligent charging system and method for new energy medical equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107359694B (en) | 2023-05-16 |
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