CN210327131U - Intelligent multi-path energy management controller - Google Patents
Intelligent multi-path energy management controller Download PDFInfo
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- CN210327131U CN210327131U CN201921263783.7U CN201921263783U CN210327131U CN 210327131 U CN210327131 U CN 210327131U CN 201921263783 U CN201921263783 U CN 201921263783U CN 210327131 U CN210327131 U CN 210327131U
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- energy management
- management controller
- intelligent multi
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- 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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- 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
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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- 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
- Y04S20/248—UPS systems or standby or emergency generators
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an intelligent multi-path energy management controller, which comprises two input ends, two AC/DC power conversion units, a main controller and two battery packs, wherein the two input ends are used for commercial power input and solar energy input, and the two AC/DC power conversion units are used for converting commercial power into 12V and then outputting the 12V; the two battery packs are used for alternately charging and discharging, and the controller is used for controlling the switch and detecting the intelligent multi-path energy management controller.
Description
Technical Field
The utility model relates to a power supply unit technical field, concretely relates to intelligence multichannel energy management controller.
Background
In some unattended places such as communication base stations or earthquake monitoring stations, the power supply is the basis for guaranteeing the safe and stable operation of the system, in order to guarantee the stable operation of the equipment, the reliability and the stability of the power supply are higher, the corresponding maintenance must be timely and reliable, and the requirement of high-quality maintenance cannot be met only by the traditional manual round-robin maintenance mode along with the increase of the arrangement points such as the base stations or the stations.
However, the existing power supply devices basically adopt batteries to provide a simple power supply module, power is supplied to the subsequent device through conversion, the protection is simpler, the failure rate is higher in the field unattended severe environment, and the subsequent device is easy to damage; the existing power supply equipment generally only performs simple overvoltage and undervoltage protection on a battery for supplying power, and the battery is at risk in use; the existing power supply equipment has no remote monitoring function and cannot carry out intelligent remote management.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide an intelligent multi-path energy management controller having a remote monitoring function and improving the safety of battery charging and discharging management, so as to improve the reliability and system maintainability of the power supply controller.
An intelligent multi-path energy management controller comprises an input end, an AC/DC power conversion unit, a main controller and a battery pack, wherein the input end, the AC/DC power conversion unit and the battery pack are respectively provided with two, the two input ends are respectively a mains supply input end for mains supply input and a solar energy input end for solar energy input, the two AC/DC power conversion units are respectively a first AC/DC power conversion unit and a second AC/DC power conversion unit which are connected in parallel, a lightning and surge protection device is connected in series after the mains supply input end is connected with a first switch in series, the lightning and surge protection device is connected with the two AC/DC power conversion units which are connected in parallel, the second AC/DC power conversion unit is connected with subsequent equipment and circuits, and a second switch is arranged between the AC/DC second power conversion unit and the lightning and surge protection device, when the intelligent multi-path energy management controller is overhauled, the AC/DC second power supply conversion unit is switched on and uses commercial power converted by the AC/DC second power supply conversion unit to supply power to subsequent equipment; the two battery packs are respectively provided with a charging end and a discharging end, the solar input end is connected with a solar controller, the two battery packs are arranged in parallel, the solar controller and the AC/DC first conversion unit are respectively and alternately connected with the charging ends of the two battery packs through a third switch, and the discharging ends of the two battery packs are provided with fourth switches which are alternately connected with a subsequent circuit to ensure that the two batteries are alternately charged and discharged; the main controller is used for controlling a plurality of the switches.
Preferably, the intelligent multi-energy management controller is further provided with an ethernet interface for connecting a network to realize remote communication control or monitoring of the intelligent multi-energy management controller, and the ethernet interface is electrically connected with the main controller.
Preferably, the discharge end of the battery pack is provided with two parallel first and second diodes, and the discharge end is connected with the parallel first and second diodes through the fourth switch.
Preferably, the discharge end of the battery pack is further provided with a capacitor to avoid power failure during switching of the two battery packs.
Preferably, the capacitor input end is connected with the output end of the second diode, the capacitor output end is connected with a third diode, and the first diode is connected with the output end after being connected with the second diode, the capacitor and the third diode which are connected in series in parallel.
Preferably, the output end is connected with the DCDC conversion unit and then connected with multiple parallel load output ends, the multiple load output ends are respectively provided with a switch to ensure that the multiple load output ends are independently output, and the output voltage of the load output ends is 12V or 48V.
Preferably, the intelligent multi-channel energy management controller is provided with a front panel and a rear panel, and the front panel is provided with an LCD display screen for observing each parameter of the intelligent multi-channel energy management controller.
Preferably, the front panel is further provided with a plurality of keys and an indicator light, the keys are used for operating the intelligent multi-path energy management controller, and the indicator light is used for displaying the state of the intelligent multi-path energy management controller.
Preferably, the rear panel has a plurality of interfaces, and a plurality of the interfaces include a plurality of DI/DO interfaces and an RS485 interface, the DI/DO interface is used for connecting environment monitoring equipment, and the RS485 interface is used for connecting a temperature and humidity transmitter.
Preferably, the plurality of interfaces further include a battery pack interface, an input interface, and a voltage output interface, the battery pack interface is connected to the battery pack, the input interface is connected to the input terminal, and the voltage output interface is connected to the output terminal.
The intelligent multi-path energy management controller is compatible with two charging modes of commercial power and solar energy, uses renewable resources and can effectively save energy; two power supplies are arranged, wherein one power supply is a standby power supply, so that the power supply of subsequent equipment is ensured in the case of maintenance or emergency, and the safety is improved; two battery packs are alternately charged and discharged, wherein when one battery pack is discharged, the other battery pack is charged, and the input and the output are physically isolated, so that the safety of important subsequent equipment under the conditions of lightning stroke, surge and the like is protected; the lightning protection surge protector prevents damages to the machine room system caused by lightning and the like, and effectively improves the safety of the machine room system.
Drawings
Fig. 1 is a schematic circuit diagram of an intelligent multi-path energy management controller according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a front panel of an intelligent multi-path energy management controller according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a rear panel of the intelligent multi-path energy management controller according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and drawings.
Please refer to fig. 1, which illustrates an intelligent multi-channel energy management controller according to an embodiment of the present invention, which includes an input terminal, an AC/DC power conversion unit, a main controller 5 and a battery pack 10, wherein the input terminal, the AC/DC power conversion unit and the battery pack 10 are respectively provided with two input terminals, namely a utility power input terminal 11 for inputting utility power and a solar power input terminal 12 for inputting solar energy, further, the utility power is 220VAC utility power, and the solar energy is inputted by 14-100VDC photovoltaic. Two AC/DC power conversion unit is parallelly connected AC/DC first power conversion unit 21 and AC/DC second power conversion unit 22 respectively, and it has lightning protection and surge protection device 4 to establish ties after 11 first switches of commercial power input series 31, lightning protection and surge protection device 4 is used for the safety of protective equipment under the condition such as thunderbolt, surge, lightning protection and surge protection device 4 with parallelly connected two AC/DC power conversion unit links to each other, 220VAC commercial power is inputed AC/DC power conversion unit and is converted into 12V after first switch 31, lightning protection and surge protection device 4. The switch S1 is controlled by the controller and can be controlled by a remote server to command it to cut off the mains supply for maintenance or emergency to increase safety. The AC/DC second power conversion unit 22 is connected with subsequent equipment and circuits, a second switch 32 is arranged between the AC/DC second power conversion unit 22 and the lightning protection surge protector 4, the second switch 32 is a direct switch for inputting commercial power, and when the battery pack is overhauled, the second switch 32 directly supplies power to the subsequent equipment of the intelligent multi-path energy manager without the power supply of the battery pack 10, and the switch is closed during normal work.
Preferably, the battery pack 10 is a 12VDC battery pack, two battery packs 10 are respectively provided with a charging end and a discharging end, the solar input end 12 is connected with a solar controller 121, the two battery packs 10 are arranged in parallel, the solar controller 121 and the AC/DC first power conversion unit 21 are respectively connected with the charging ends of the two battery packs 10 alternately through a third switch 33, solar photovoltaic is output to the battery packs 10 through the solar controller 121 for power supply, and commercial power is converted into 12V through the AC/DC first power conversion unit 21 for charging the battery packs 10. Two the end of discharging of group battery 10 is equipped with fourth switch 34 and follows the circuit and links to each other in turn for ensure that two group batteries 10 keep apart alternate charge-discharge, when a set of group battery 10 is charging, another group battery 10 discharges, with preceding stage charging equipment and the complete physics of back stage consumer isolated, effectively promote system safety, right group battery 10 voltage, electric current, SOC, charge-discharge switching time etc. carry out all-round control, can both in time protect to crossing various situations such as undervoltage/overcurrent, group battery 10 can be multiple specifications such as lithium cell or lead-acid battery. The main controller 5 is used for controlling a plurality of the switches.
Further, main control unit 5 still has the circuit in order to detect mains supply or photovoltaic input's voltage, electric current, reports to the police and takes corresponding safeguard procedures when taking place the excessive pressure, abnormal conditions such as overcurrent, including cutting off the relay, stops output, hiccup protection etc..
Preferably, the intelligent multi-channel energy management controller is further provided with an ethernet interface 51 for connecting a network to realize remote communication control or monitoring, the intelligent multi-channel energy management controller comprises remote communication, remote control, data uploading, command receiving, remote upgrading programs and the like, and the ethernet interface 51 is electrically connected with the main controller 5.
The discharge end of the battery pack 10 is provided with two parallel first and second diodes 61 and 62 for protecting the circuit, and the discharge end is connected with the parallel first and second diodes 61 and 62 through the fourth switch 34.
Preferably, the discharge end of the battery pack is further provided with a capacitor 6 to avoid power failure during switching of the two battery packs 10, and to ensure that there is no overlap of the two battery packs 10 at all in switching time. Preferably, the capacitor 6 is a power-down holding capacitor
Preferably, the input end of the capacitor 6 is connected with the output end of the second diode 62, the output end of the capacitor 6 is connected with a third diode 63, and the first diode 61 is connected with the output end after being connected in parallel with the second diode 62, the capacitor 6 and the third diode 63 which are connected in series.
Preferably, the output end is connected with the DC/DC conversion unit 7 and then connected with a plurality of parallel load output ends, the plurality of load output ends are respectively provided with a switch to ensure that the plurality of load output ends are independently output, the output voltage of the load output ends is 12V or 48V, and the switches can be controlled by a remote command.
Preferably, the intelligent multi-channel energy management controller is provided with a front panel 8 and a rear panel 9, wherein the front panel is provided with an LCD display screen 81 for observing various parameters of the intelligent multi-channel energy management controller, including parameters such as a cycle display working state, a charging and discharging state of the battery pack 10, an output voltage, a current, an air pressure or a temperature and humidity.
Preferably, the front panel 8 is further provided with a plurality of keys and indicator lights, the keys include a page turning key 82 and an output control key 83, the indicator lights include an operation indicator light 84 and a fault indicator light 85, and the keys are used for operating the intelligent multi-energy management controller; after the equipment is started, the LCD display screen 81 automatically scrolls to display information such as voltage, current, charge-discharge state, temperature and humidity, the page turning key 82 is pressed, the screen is switched to the next page once the page is pressed, when the equipment stays for 10s and no operation is performed, the screen is switched to the first page, the screen is turned off and is in a backlight mode, and the power saving mode is entered; the indicator light is used for displaying the state of the intelligent multi-path energy management controller. Further, the switch of the load output terminal can also be controlled by the output control key 83: after the output control key 83 is pressed, the output is switched on, and when the output control key 83 is pressed again, the output is switched off, so that the power-on and power-off of the rear-stage load are realized. Further, when the intelligent multi-energy management controller operates normally, the operation indicator lamp 84 flashes in green; when the intelligent multi-path energy management controller fails, the red light of the fault indicator lamp 85 is normally on.
Preferably, the rear panel 9 has a plurality of interfaces, and a plurality of the interfaces include a plurality of DI/DO interfaces 91 and RS485 interfaces, the DI/DO interfaces are used for connecting environment monitoring equipment, and are used for monitoring operating environment variables such as environment temperature and humidity or entrance guard state, and the RS485 interfaces are used for connecting a temperature and humidity transmitter.
Preferably, the plurality of interfaces further includes a network port 92, a battery pack interface 93, an input interface and a voltage output interface, the network port 92 is connected with the ethernet interface 91 for connecting the device to the network; the battery pack interface 93 is connected to the battery pack 10 for charging and discharging the battery pack, the input interface is connected to the input terminal, and the voltage output interface is connected to the output terminal.
Further, the voltage output interface comprises a 48V voltage output interface 94 and a plurality of 12V voltage output interfaces 95 for outputting different voltages, so as to be compatible with various devices: the typical value for the 48V output interface 94 is 48Vdc/1.25A/60W, and the typical value for the multiple 12V output interface 95 is 12 Vdc/2.5A/30W.
Further, the input interface comprises a photovoltaic + input interface 96, a photovoltaic-input interface 97, a mains supply interface 98 and an emergency switch 99, and the photovoltaic + input interface 96 is connected with the positive pole of the photovoltaic panel; the photovoltaic-input interface 97 is connected with the negative electrode of the photovoltaic panel, and the photovoltaic + input interface 96 and the photovoltaic-input interface 97 are respectively connected with the solar controller 121 for providing photovoltaic electric energy; the commercial power interface 98 is connected with the first switch 31, is used for inputting 220Vac commercial power and is provided with a 10A fuse; the emergency switch 99 is connected with the second switch 32, is a commercial power input through switch, and is used for directly supplying power to the rear stage of the intelligent multi-path energy management controller through the emergency switch 99 without supplying power through the battery 10 when the battery pack 10 is overhauled.
Further, the rear panel also has a ground hole 90 for grounding the device.
Preferably, the intelligent multi-path energy management controller adopts a 2U standard cabinet design.
The intelligent multi-path energy management controller is additionally provided with the lightning and surge protection protector 4, and the stability and the reliability of the intelligent multi-path energy management controller are improved by adopting various technical means such as switching charging and discharging of the two groups of battery packs 10, power-down maintaining functions of the capacitor 6, input and output monitoring and the like; the intelligent multi-path energy management controller can be connected with a network, when equipment runs, data interaction is carried out between the equipment and a server through the network, system state data are uploaded, remote control commands are received, programs are upgraded and the like, so that remote communication, control and the like of a power supply are realized, the reliability and maintainability of the intelligent multi-path energy management controller are further improved, faults are found in time, maintenance personnel are prompted to take necessary measures to solve the problems, and the maintenance quality is greatly improved; the intelligent multi-path energy management controller is comprehensively monitored and predicted in voltage, temperature, current, residual capacity, service life, service environment and the like, the battery is protected to the maximum extent, charging and discharging management safety of the battery is improved, and service life of the battery is prolonged.
It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An intelligent multi-path energy management controller is characterized by comprising two input ends, an AC/DC power conversion unit, a main controller and a battery pack, wherein the two input ends are respectively a mains supply input end for mains supply input and a solar energy input end for solar energy input, the two AC/DC power conversion units are respectively an AC/DC first power conversion unit and an AC/DC second power conversion unit which are connected in parallel, a lightning and surge protection device is connected in series after the mains supply input end is connected with a first switch in series, the lightning and surge protection device is connected with the two AC/DC power conversion units which are connected in parallel, the AC/DC second power conversion unit is connected with subsequent equipment, and a second switch is arranged between the AC/DC second power conversion unit and the lightning and surge protection device, when the intelligent multi-path energy management controller is overhauled, the AC/DC second power supply conversion unit is switched on and uses commercial power converted by the AC/DC second power supply conversion unit to supply power to subsequent equipment; the two battery packs are respectively provided with a charging end and a discharging end, the solar input end is connected with a solar controller, the two battery packs are arranged in parallel, the solar controller and the AC/DC first conversion unit are respectively and alternately connected with the charging ends of the two battery packs through a third switch, and the discharging ends of the two battery packs are provided with fourth switches which are alternately connected with a subsequent circuit to ensure that the two batteries are alternately charged and discharged; the main controller is used for controlling a plurality of the switches.
2. The intelligent multi-channel energy management controller according to claim 1, wherein the intelligent multi-channel energy management controller is further provided with an ethernet interface for connecting to a network to control or monitor the intelligent multi-channel energy management controller through telecommunication, and the ethernet interface is electrically connected to the main controller.
3. The intelligent multi-channel energy management controller according to claim 1, wherein the discharging end of the battery pack is provided with two parallel first and second diodes, and the discharging end is connected with the parallel first and second diodes through the fourth switch.
4. The intelligent multi-channel energy management controller according to claim 3, wherein the discharging terminals of the battery packs are further provided with capacitors to avoid power down during switching of the two battery packs.
5. The intelligent multi-channel energy management controller according to claim 4, wherein said capacitor input terminal is connected to said second diode output terminal, said capacitor output terminal is connected to a third diode, and said first diode is connected to said output terminal after being connected in parallel with said second diode, said capacitor and said third diode connected in series.
6. The intelligent multi-energy management controller according to claim 1, wherein the output terminal is connected to the DCDC conversion unit and then connected to a plurality of parallel load output terminals, each of the plurality of load output terminals is provided with a switch to ensure that the plurality of load output terminals are independently output, and the output voltage of the load output terminals is 12V or 48V.
7. The intelligent multi-way energy management controller according to claim 1, wherein said intelligent multi-way energy management controller has a front panel and a rear panel, said front panel having an LCD display screen to view various parameters of said intelligent multi-way energy management controller.
8. The intelligent multi-way energy management controller according to claim 7, wherein said front panel further comprises a plurality of buttons and indicator lights, said buttons are used for operating said intelligent multi-way energy management controller, and said indicator lights are used for displaying the status of said intelligent multi-way energy management controller.
9. The intelligent multi-channel energy management controller according to claim 7, wherein said back panel has a plurality of interfaces, said plurality of interfaces comprises a plurality of DI/DO interfaces and an RS485 interface, said DI/DO interfaces are used for connecting with an environment monitoring device, and said RS485 interface is used for connecting with a temperature and humidity transmitter.
10. The intelligent multi-channel energy management controller of claim 9, wherein said plurality of said interfaces further comprises a battery pack interface, an input interface, and a voltage output interface, said battery pack interface being connected to said battery pack, said input interface being connected to said input terminal, and said voltage output interface being connected to said output terminal.
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| CN201921263783.7U CN210327131U (en) | 2019-08-06 | 2019-08-06 | Intelligent multi-path energy management controller |
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| CN201921263783.7U CN210327131U (en) | 2019-08-06 | 2019-08-06 | Intelligent multi-path energy management controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614231A (en) * | 2020-06-18 | 2020-09-01 | 福建省中科生物股份有限公司 | Lamp capable of being networked and lamp networking system |
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2019
- 2019-08-06 CN CN201921263783.7U patent/CN210327131U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614231A (en) * | 2020-06-18 | 2020-09-01 | 福建省中科生物股份有限公司 | Lamp capable of being networked and lamp networking system |
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