CN109038791A - A kind of power-supply device - Google Patents
A kind of power-supply device Download PDFInfo
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- CN109038791A CN109038791A CN201710437299.0A CN201710437299A CN109038791A CN 109038791 A CN109038791 A CN 109038791A CN 201710437299 A CN201710437299 A CN 201710437299A CN 109038791 A CN109038791 A CN 109038791A
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- supply device
- power supply
- power
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- control device
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- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H02J7/0021—
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- H02J7/0026—
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment provides a kind of power-supply devices, are related to field of power distribution.The power-supply device includes: first switch device, is set on the line of controller switching equipment；Power supply device is connect with the load equipment in the controller switching equipment；First detection device is set on the line；First control device, it is connect with the first switch device and the power supply device and first detection device, when for there is no alternating current on the line that first detection device detects the controller switching equipment, it controls the first switch device to disconnect, so that the power supply device provides power supply for the load equipment in the controller switching equipment.Using technical solution of the present invention, it can be achieved that the alternating current of the weak current equipment of controller switching equipment and the automatic switchover for providing electricity for oneself, guarantee that weak current equipment works normally, and then guarantee controller switching equipment normal work.
Description
Technical field
The present invention relates to low-voltage distribution fields, and in particular, to a kind of power-supply device.
Background technique
With digitlization, the development of intelligentized distribution technique, it will include a large amount of weak current equipment in controller switching equipment, be
Guarantee that weak current equipment can operate normally in no alternating current and provide electricity to the installation and debugging of weak current equipment in no alternating current
Source, therefore, it is necessary to be equipped with to the weak current equipment in controller switching equipment a kind of safe and reliable, and uninterrupted power supply provides electricity for oneself
Source.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of power-supply device is provided, it can be achieved that the alternating current of the weak current equipment of controller switching equipment and
It provides the automatic switchover of electricity for oneself, guarantees that weak current equipment works normally, and then guarantee that controller switching equipment works normally.
In order to achieve the above objectives, the embodiment provides a kind of power-supply device, the power-supply device includes:
First switch device, is set on the line of controller switching equipment；
Power supply device is connect with the load equipment in the controller switching equipment；
First detection device is set on the line；
First control device is connect with the first switch device, the power supply device and first detection device, is used
When there is no alternating current on the line that first detection device detects the controller switching equipment, the first switch is controlled
Device disconnects, so that the power supply device provides power supply for the load equipment in the controller switching equipment.
Optionally, the power-supply device further include:
Second switch device is connect with the first switch device and the power supply device；
Second detection device is connect with the power supply device；
Second control device connects with the second switch device, first detection device and the second detection device
It connects, for having alternating current, and second inspection on the line that first detection device detects the controller switching equipment
When survey device detects the electricity of the power supply device less than the first preset threshold, the second switch device conducting is controlled, is made
It obtains the power supply device and enters charged state.
Optionally, the power-supply device further include:
Resetting Switching is connect with the first control device；
Third switching device is connect with the first control device and the load equipment；
The first control device is also connect with the second detection device, is also used to examine in the second detection device
When measuring the electric quantity consumption of the power supply device more than or equal to the second preset threshold, controls the third switching device and disconnects,
Also, if the reset signal inputted by user by the Resetting Switching is received within a preset period of time, be connected described
Three switching devices, so that the power supply device provides power supply within preset a period of time for the load equipment.
Optionally, the power-supply device further include:
Voltage monitor is connect with the second control device and the power supply device, for monitoring the power supply device
The voltage value at both ends；And/or
Current monitor is connect with the power supply device and the first control device, is filled for monitoring with the power supply
Set connection and the current value in the circuit of formation.
Optionally, the power-supply device further include:
Temperature monitoring is connect with the second control device and the power supply device, for monitoring the power supply device
Temperature value.
Optionally, the power supply device is battery pack.
Optionally, the power-supply device further include:
Balance driver is connect with the battery pack and the second control device, every in the battery pack for balancing
The voltage of one batteries so that in the battery pack each batteries electric voltage equalization.
Optionally, the power-supply device further include:
Open-circuit voltage/short circuit current detection device, connect, for detecting with the power supply device and the first control device
Connect with the power supply device and the circuit that is formed present in open-circuit voltage or short circuit current.
Optionally, the power-supply device further include:
State monitor is connect with the power supply device and the first control device, for monitoring the power supply device
Charging and discharging state.
Optionally, the power-supply device further include:
Display device is connect with the first control device, for showing the first control device and second control
The communications status of device processed, the electricity of the power supply device and charging and discharging state and warning message.
As shown from the above technical solution, with the first switch device, the power supply device and first detection device
The first control device of connection when there is no alternating current on the line that first detection device detects the controller switching equipment,
It controls the first switch device being set on the line of controller switching equipment to disconnect, so that power supply device mentions for load equipment
Power supply source guarantees that weak current equipment works normally, it can be achieved that the alternating current of the weak current equipment of controller switching equipment and the automatic switchover for providing electricity for oneself,
And then guarantee that controller switching equipment works normally.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is the structural schematic diagram for the power-supply device that one embodiment of the invention provides.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is the structural schematic diagram for the power-supply device that one embodiment of the invention provides.As shown in Figure 1, the present invention one is implemented
The power-supply device that example provides includes: first switch device 20, is set on 22 route of alternating current of controller switching equipment；Power supply device
10, it is connect with the load equipment in the controller switching equipment；First detection device 26 is set on 22 route of alternating current；First
Control device 15 is connect with the first switch device 20, the power supply device 10 and first detection device 26, is used for
First detection device 26 detects when not having alternating current on the line of the controller switching equipment, controls the first switch dress
20 disconnections are set, so that the power supply device 10 provides power supply for the load equipment 25 in the controller switching equipment.Take this, it can be real
The alternating current of the weak current equipment of existing controller switching equipment and the automatic switchover for providing electricity for oneself guarantee that weak current equipment works normally, and then guarantee to match
Electric equipment works normally.
In a particular embodiment, the first switch device 20 can be Metal Oxide Semiconductor Field Effect Transistor
MOSFET or relay, the power supply device 10 can be battery pack, connected and formed by several lithium batteries, first control
Device 15 can be single-chip microcontroller, and the single-chip microcontroller includes data access interface, further include communication interface and defeated for connecting memory
Enter/output port.Wherein, load equipment includes weak current equipment, for example, light current device, lightning protection device, data in digital power distribution cabinet
The weak current equipments such as collector, interchanger, display screen.
Preferably, the power-supply device further include: second switch device 18, with the first switch device 20 and the electricity
Source device 10 connects；Second detection device 27 is connect with the power supply device 10；Second control device 14 is opened with described second
It closes device 18, first detection device 26 and the second detection device 27 to connect, in first detection device 26
Detect there is alternating current on the line of the controller switching equipment, and the second detection device 27 detects the power supply device
Electricity less than the first preset threshold when, control the second switch device 18 and be connected, filled so that the power supply device 10 enters
Electricity condition.Take this, can guarantee that the power supply of the power supply device 10 in power-supply device is sufficient, prevent power supply device 10 because of not enough power supply
And the weak current equipment of controller switching equipment is caused to power off.
In a particular embodiment, the second switch device 18 can be MOSFET or relay, second control
Device 14 processed can be active front end control module AFE, and the AFE includes communication interface and power interface.Wherein, second control
The first end of device 14 processed and the first end of the power supply device 10 are connect with the first end of the first control device 15 respectively,
The second end of the second control device 14 and the second end of the power supply device 10 respectively with second switch device 18 first
End connection, the second end and the first switch of the second end of the second switch device 18 and the first control device 15 fill
Set 20 first end connection.When first control device 15 detects institute by the first detection device 26 being set on line
When stating the power distribution cabinet copper bar on line has alternating current, after alternating current 22 is converted by regulated power supply AC/DC21, set directly to load
Standby 25 power supply, at this point, first switch device 20 is in closed state, second switch device 18 is in an off state.Meanwhile second
Control device 14 is when second detection device 27 detects the electricity of the power supply device less than the first preset threshold, the second control
Device 14 controls the second switch device 18 and is connected, so that the power supply device 10 enters charged state.It is another in the present invention
In embodiment, second control device 14 is supervised according to the voltage monitor 11 or current monitor that 10 both ends of power supply device are arranged in
It measures voltage or when electric current determines the electricity of the power supply device less than 80%, second control device 14 controls the second switch
Device 18 is connected, so that the power supply device enters charged state.Wherein, the second control device 14 passes through driving circuit control
The second switch device 18 is made to be connected.After the electricity of power supply device 10 reaches saturation, the control of second control device 14 the
Two switching devices 18 disconnect, so that power supply device 10 is in self discharge mode.When second control device 14 judges the power supply dress
When setting 10 electricity lower than setting value 80%, second control device 14 controls second switch device 18 and is connected, so that power supply device
10 reenter charged state, it is however generally that, the self discharge depth of power supply device 10 is no more than 80%.
Preferably, the power-supply device further include: Resetting Switching 28 is connect with the first control device 15；Third is opened
Device 23 is closed, is connect with the first control device 15 and the load equipment 25；The first control device 15, also with it is described
Second detection device 27 connects, and is also used to detect that the electric quantity consumption of the power supply device 10 is big in the second detection device 27
When the second preset threshold, controls the third switching device 23 and disconnect, if also, receiving within a preset period of time
The reset signal that the Resetting Switching 28 inputs is passed through by user, then 23 device of third switch is connected, so that the power supply
Device 10 is that the load equipment 25 provides power supply within preset a period of time.Take this, can be controller switching equipment in no alternating current
In weak current equipment power a period of time, and when can also provide in no alternating current one section of power supply for the installation and debugging of weak current equipment
Between.
In a particular embodiment, the third switching device 23 can be MOSFET or relay.Wherein, third is opened
The first end for closing device 23 is connect with the first end of first control device 15, and the second end of third switching device 23 passes through diode
24 connect with load equipment 25.Why the second end of the third switching device 23 passes through diode 24 and load equipment 25 connects
It connects, is because the current reflux in circuit can be prevented when power supply device 10 provides power supply to load equipment 25.When the first control
Device 15 is detected by the first detection device 26 being set on line when not having alternating current on the line, is controlled
First switch device 20 disconnects, and controls the conducting of third switching device 23, is connected to discharge loop, is that load is set by power supply device 10
Standby 25 provide power supply.At this point, second switch device 28 is in closed state.When the electric quantity consumption of power supply device 10 (is counted to 50%
Be worth adjustable) below when, first control device 15 control third switching device 23 disconnect, cut off discharge loop.At this point, if user
It can be manually pressed by the connection that Resetting Switching 28 disconnects power supply device and first control device 15, first control device 15 powers off, then
Again Resetting Switching 28 to be pressed to power on to first control device 15, first control device 15 controls third switching device 23 and is connected,
Discharge loop is re-closed, to 25 continued power of load equipment for a period of time after (such as 10 minutes, numerical value is adjustable), then controls the
Three switching devices 23 disconnect cutting discharge circuit.Gone down with this, until power supply device 10 discharges into electricity lower than some setting value
When (numerical value is adjustable), it is automatically closed when reporting low electricity to alert by display device 19 or detect overdischarge.
Preferably, the power-supply device further include: voltage monitor 11, with the second control device 14 and the power supply
Device 10 connects, for monitoring the voltage value at the power supply device both ends.Take this, it can be according to the voltage at the power supply device both ends
Value obtains the electricity of the power supply device.
Preferably, the power-supply device further include: temperature monitoring 13, with the second control device 14 and the power supply
Device 10 connects, for monitoring the temperature value of the power supply device, it is preferable that is in for monitoring the power supply device using shape
The temperature value of state.Take this, can real-time monitoring power supply device be in the temperature value of use state.
In a particular embodiment, temperature monitoring 13 is connect by negative temperature coefficient NTC circuit with power supply device.
When the power supply device 10 is battery pack, it is preferable that the power-supply device further include: balance driver 12, with
The battery pack and the second control device 14 connect, for balancing the voltage of each batteries in the battery pack, so that
The electric voltage equalization of each batteries in the battery pack.Take this, it is ensured that the storage performance of battery pack.
Preferably, the power-supply device further include: open-circuit voltage/short circuit current detection device 16, with the power supply device 10
Connected with the first control device 15, for detect connect with the power supply device and the circuit that is formed present in open circuit it is electric
Pressure or short circuit current.Take this, open-circuit voltage or short circuit present in the detectable circuit that obtains connecting with power supply device and be formed
Electric current.
In a particular embodiment, open-circuit voltage/short circuit current detection device 16 passes through on computing circuit link circuit
Sense resistor realizes the detection of open-circuit voltage or short circuit current on circuit.
Preferably, the power-supply device further include: current monitor 26, with the power supply device 10 and first control
Device 15 connects, for monitoring the current value connecting with the power supply device and in the circuit that is formed.Take this, it can be according to the electricity
Flow valuve obtains the electricity of the power supply device.
In a particular embodiment, current monitor is realized back by the sense resistor on computing circuit link circuit
The monitoring of current value in road.
Preferably, the power-supply device further include: state monitor 17, with the power supply device 10 and first control
Device 15 connects, for monitoring the charging and discharging state of the power supply device.Take this, can get the charging and discharging state of power supply device.
Preferably, the power-supply device further include: display device 19 is connect, for showing with the first control device 15
Show the first control device 14 and the communications status of the second control device 15, the electricity of the power supply device and charge and discharge
State and warning message.
In a particular embodiment, the display device 19 can be LED or LCD.The communication interface of second control device
Communication interface SPI or the I2C connection of SPI or I2C and first control device, the communication interface RS232 of first control device or
RS485 is connect with display device, makes second control device, display device and first control device connection communication, by the electricity of monitoring
The information such as pond electricity and the temperature value of battery pack are sent to first control device, communication state displaying, battery on LCD or LED
Electricity, charging and discharging state, warning message etc..Wherein, the warning message includes excessively high temperature, overload, short circuit, overcharge, mistake
The failures such as electric discharge.The overcharge of battery pack refers to that the charging voltage at battery pack both ends is greater than the specified charging electricity at battery pack both ends
The charging current of pressure or battery pack is greater than the specified charging current of battery pack.
Preferably, the power-supply device further include: charging current limit circuit is set to the circuit formed with power supply device
In, for limiting the charging current of the power supply device.Take this, can avoid power supply device and be in overcharge condition.
The embodiment of the present invention not only can guarantee that the weak current equipment in controller switching equipment can be worked normally in no alternating current, but also
Also power supply can be provided for the installation and debugging of weak current equipment in no alternating current.Further, it can be achieved that the weak current equipment of distribution system
Alternating current and provide for oneself electricity automatic switchover, guarantee weak current equipment work normally, and then guarantee distribution system work normally；When no city
When electric, it is ensured that distribution system weak current equipment works normally a period of time, can normally handle, inquires and manage all data；
Power supply can be provided for the rigging up and debugging of distribution system simultaneously, convenient for the equipment debugging and function debugging of distribution system, including
The self-test of weak current equipment is debugged.
It may be noted that all parts/step described in this application can be split as more multi-section according to the needs of implementation
The part operation of two or more components/steps or components/steps can also be combined into new components/steps by part/step,
To achieve the object of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of power-supply device, which is characterized in that the power-supply device includes:
First switch device, is set on the line of controller switching equipment；
Power supply device is connect with the load equipment in the controller switching equipment；
First detection device is set on the line；
First control device is connect with the first switch device, the power supply device and first detection device, is used for
First detection device detects when not having alternating current on the line of the controller switching equipment, controls the first switch device
It disconnects, so that the power supply device provides power supply for the load equipment in the controller switching equipment.
2. power-supply device according to claim 1, which is characterized in that the power-supply device further include:
Second switch device is connect with the first switch device and the power supply device；
Second detection device is connect with the power supply device；
Second control device is connect with the second switch device, first detection device and the second detection device, is used
In having alternating current, and the second detection device on the line that first detection device detects the controller switching equipment
When detecting the electricity of the power supply device less than the first preset threshold, the second switch device conducting is controlled, so that described
Power supply device enters charged state.
3. power-supply device according to claim 2, which is characterized in that the power-supply device further include:
Resetting Switching is connect with the first control device；
Third switching device is connect with the first control device and the load equipment；
The first control device is also connect with the second detection device, is also used to detect in the second detection device
When the electric quantity consumption of the power supply device is greater than or equal to the second preset threshold, controls the third switching device and disconnect, also,
If receiving the reset signal inputted by user by the Resetting Switching within a preset period of time, the third switch is connected
Device, so that the power supply device provides power supply within preset a period of time for the load equipment.
4. power-supply device according to claim 2, which is characterized in that the power-supply device further include:
Voltage monitor is connect with the second control device and the power supply device, for monitoring the power supply device both ends
Voltage value；And/or
Current monitor is connect with the power supply device and the first control device, is connected for monitoring with the power supply device
Connect and the current value in the circuit that is formed.
5. power-supply device according to claim 2, which is characterized in that the power-supply device further include:
Temperature monitoring is connect with the second control device and the power supply device, for monitoring the temperature of the power supply device
Angle value.
6. power-supply device described in any one of -5 claims according to claim 1, which is characterized in that the power supply device
For battery pack.
7. power-supply device according to claim 6, which is characterized in that the power-supply device further include:
Balance driver is connect with the battery pack and the second control device, for balancing each section in the battery pack
The voltage of battery so that in the battery pack each batteries electric voltage equalization.
8. power-supply device according to claim 1, which is characterized in that the power-supply device further include:
Open-circuit voltage/short circuit current detection device, connect with the power supply device and the first control device, for detection and institute
State power supply device connection and formed circuit present in open-circuit voltage or short circuit current.
9. power-supply device according to claim 1, which is characterized in that the power-supply device further include:
State monitor is connect with the power supply device and the first control device, for monitoring filling for the power supply device
Discharge condition.
10. power-supply device according to claim 2, which is characterized in that the power-supply device further include:
Display device is connect with the first control device, for showing that the first control device and second control fill
The electricity and charging and discharging state and warning message of the communications status, the power supply device set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437299.0A CN109038791A (en) | 2017-06-12 | 2017-06-12 | A kind of power-supply device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710437299.0A CN109038791A (en) | 2017-06-12 | 2017-06-12 | A kind of power-supply device |
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| CN109038791A true CN109038791A (en) | 2018-12-18 |
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| CN201710437299.0A Pending CN109038791A (en) | 2017-06-12 | 2017-06-12 | A kind of power-supply device |
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| CN103384081A (en) * | 2013-06-25 | 2013-11-06 | 常州市俊宏电器厂 | Device and method for controlling generator and mains supply to supply power to loads |
| CN103606944A (en) * | 2013-12-04 | 2014-02-26 | 北京时空科技有限公司 | Intelligent power supply system |
| CN205453125U (en) * | 2016-01-04 | 2016-08-10 | 中广有线信息网络有限公司南通分公司 | Weak electrical engineering safety power supply system |
| CN105811570A (en) * | 2016-03-11 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Mobile refrigeration device and power supply switching method and device thereof |
| CN206180690U (en) * | 2016-11-08 | 2017-05-17 | 刘亚苹 | Solar energy commercial power complementation USP electrical power generating system for urban rail transit |
| CN106533242A (en) * | 2017-01-10 | 2017-03-22 | 杭州和而泰智能控制技术有限公司 | Intelligent strong and weak current safe conversion apparatus and safe conversion method therefor |
| CN207010344U (en) * | 2017-06-12 | 2018-02-13 | 天津市中力防雷技术有限公司 | A kind of power-supply device |
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