CN220043045U - Battery pack energy conversion device - Google Patents
Battery pack energy conversion device Download PDFInfo
- Publication number
- CN220043045U CN220043045U CN202223413129.4U CN202223413129U CN220043045U CN 220043045 U CN220043045 U CN 220043045U CN 202223413129 U CN202223413129 U CN 202223413129U CN 220043045 U CN220043045 U CN 220043045U
- Authority
- CN
- China
- Prior art keywords
- unit
- battery pack
- interface
- battery
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 53
- 230000003993 interaction Effects 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 21
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 16
- 229910052744 lithium Inorganic materials 0.000 claims description 16
- 230000006870 function Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 21
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a battery pack energy conversion device which comprises a control board, a DC-DC unit, an AC-DC unit, a DC-AC unit, a relay unit, an external interface, a man-machine interaction unit and a power supply unit. The battery pack energy conversion device can meet the requirements of maintenance and guarantee work under various conditions of a new energy vehicle battery system maintenance service station by setting three working modes of commercial power charging, battery pack mutual charging and inversion output, improves the efficiency of the battery system maintenance and guarantee work, saves a large amount of electric energy and obtains beneficial effects.
Description
Technical Field
The utility model relates to the technical field of battery charging, in particular to a battery pack energy conversion device.
Background
The new energy vehicle battery system maintenance service site needs to maintain the new energy vehicle battery, when the new energy vehicle battery system maintenance service site has power failure or unexpected power failure, maintenance service site maintenance work cannot be carried out or interrupted, the maintenance service site is restricted by a power supply network of the maintenance service site, the maximum power of charging equipment of some maintenance service sites is only 7KW and even is as low as 3KW, the charging time is long, the efficiency is low, the traditional charging and discharging equipment adopts the resistive discharge when the battery is discharged, and the electric energy is wasted in the discharging process of the battery.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a multifunctional battery pack energy storage and conversion device, which can use the mains supply to store energy and charge the battery pack, and convert the stored energy of the battery pack into alternating current to supply power to the electric equipment when the mains supply fails, so that the battery pack or the battery can be charged and discharged, and the waste of electric energy is reduced.
The battery pack energy conversion device comprises a control board, a DC-DC unit, an AC-DC unit, a DC-AC unit, a relay unit, an external interface, a man-machine interaction unit and a power supply unit, wherein the control board is electrically connected with the DC-DC unit, the AC-DC unit, the DC-AC unit, the relay unit, the man-machine interaction unit and the power supply unit, and the relay unit is electrically connected with the external interface.
The battery pack energy conversion device has three working modes of mains charge, battery pack mutual charge and inversion output.
The control panel comprises a main control chip, a data memory, an input/output interface and a communication interface, wherein the main control chip is the core of the system, and the power management, detection, control and protection of the battery pack energy saving conversion device are realized through the input/output interface and the communication interface.
Specifically, the model of the main control chip is: AT32F407VCT7.
Further, the communication interface comprises an RS485 interface and a CAN interface, wherein the RS485 interface is connected with the man-machine interaction unit, and the CAN interface is connected with the DC-DC unit, the AC-DC unit, the DC-AC unit and the battery pack. The control board is connected with the communication interfaces of the battery system, the AC-DC unit, the DC-AC unit and the man-machine interaction unit through the communication interfaces and is communicated with the communication interfaces to exchange information, and the control board is connected with the relay unit through the input and output interfaces to control operation.
Further, the external interface comprises a mains input interface, a battery charging interface, a battery discharging interface and an inversion output interface, and the inversion output interface can be provided with a three-phase or single-phase alternating current output interface.
The relay unit comprises a source input selection relay unit and a source output selection relay unit, the relay unit is connected with the external interface, the control board controls the relay unit according to a working mode, and the relay unit selects a required input power supply from the external interface and outputs the required power supply to the external interface.
The control board reads the voltage and the temperature of each unit cell in the battery pack through the CAN interface to monitor the overvoltage, undervoltage, overtemperature and low temperature states of the battery, the control board acquires relevant parameters of the battery pack in real time through CAN interface communication, the control board sets the relevant parameters of the battery pack through the man-machine interaction unit, and the control board reads the working parameters of the DC-DC unit, the AC-DC unit and the DC-AC unit through the CAN interface to monitor the working state of the external interface in real time.
Further, the AC-DC unit rectifies and converts an input alternating current into a direct current or inputs the direct current and outputs a direct current voltage under the control of the control board to charge a battery pack to be charged.
The DC-DC unit outputs direct current after boosting or reducing conversion under the control of the control board, and the DC-DC unit has a limited output power working mode.
And the DC-AC unit inverts the input direct current to generate three-phase alternating current under the control of the control board, and outputs the three-phase alternating current or the single-phase alternating current according to the requirement.
Further, the man-machine interaction unit comprises a touch display screen, and a WIFI transceiver module and a 4G module are arranged in the touch display screen.
The man-machine interaction unit is used for setting various parameters of the battery pack energy conversion device by using the touch display screen, displaying states and information of each unit of the battery pack energy conversion device, and the WIFI transceiver module and the 4G module are used for sending working state information of the battery pack energy conversion device to the cloud server, upgrading software programs of the battery pack energy conversion device through the cloud server and increasing information of the type of the supplementary battery.
Further, the power supply unit is a lithium battery module, the lithium battery module is used for supplying power to the control panel and the touch display screen, the lithium battery module has alternating current charging and direct current charging functions, when commercial power exists, the lithium battery module is charged by a charging module from 220VAC (alternating current) to 14VDC (direct current), and when no commercial power exists, the lithium battery module is charged through the battery pack mutual charging working mode or the inversion output working mode.
Specifically, the battery pack energy conversion device has three working modes: a mains supply charging mode, a battery pack mutual charging mode and an inversion output mode.
The utility power charging working mode is that 90-280VAC utility power is input to the utility power input interface and connected to the input end of the source input selection relay unit, under the control of the control board, the output end of the source input selection relay unit sends 90-280VAC utility power to the input end of the AC-DC unit, 100-750VDC direct current is output through rectification and conversion of the AC-DC unit, the control board controls the source output selection relay unit, and the 100-750VDC direct current output by the AC-DC unit is connected to the battery charging interface to charge a battery pack connected to the battery charging interface.
The control board controls the source output selection relay unit, the direct current output by the battery pack connected to the battery discharging interface is connected to the input end of the DC-DC unit, the direct current is output after the direct current is boosted or down-converted by the DC-DC unit, and the control board controls the source output selection relay unit, and the direct current output by the DC-DC unit is connected to the battery charging interface to charge the battery pack.
The battery pack mutual charging working mode is used for occasions of battery pack maintenance, and compared with the traditional charging and discharging equipment, the battery pack mutual charging working mode adopts the resistive discharging during the battery pack maintenance, and can save electric energy and reduce electric energy consumption.
The battery inversion working mode is that the control board controls the source input selection relay unit to connect a battery pack connected to the battery discharging interface to the input end of the DC-AC unit, the DC-AC unit inverts direct current of the battery pack to generate three-phase alternating current voltage, the control board controls the source output selection relay unit to output three-phase alternating current output by the DC-AC unit in an inversion mode to the inversion output interface, the inversion output interface can output single-phase or three-phase alternating current according to the requirement of electric equipment, the inversion output mode provides power needed by the electric equipment when commercial power fails, and the inversion output mode can also be used in discharge maintenance occasions of the battery pack.
Further, the main control board of the battery pack energy conversion device acquires current and voltage of the AC-DC unit, the DC-DC unit and the DC-AC unit in real time through CAN interface communication, monitors working states of all external interfaces in real time, and achieves overvoltage, undervoltage, overcurrent and short circuit protection functions of an alternating current side of the battery pack energy conversion device; parameters such as charge and discharge current, charge and discharge voltage, single battery cut-off voltage and the like of the battery pack are set through a human-computer interface, the charge and discharge current, the voltage and the single voltage of the battery pack are collected in real time through CAN interface communication according to a battery pack communication protocol, whether the battery pack reaches a charge cut-off condition is judged, automatic stopping of charging is achieved, and protection functions such as battery side undervoltage, overvoltage, overcurrent, overtemperature and short circuit are achieved.
Among the above-mentioned battery package energy conversion device, realized that the commercial power charges for the battery package, the battery package charges to the battery package, battery package contravariant output exchanges multiple functions such as, and contravariant output's voltage and electric current are stable, satisfy the demand of the maintenance guarantee work of new energy vehicle battery system maintenance service station under various circumstances, improve the efficiency of battery system maintenance guarantee work, practice thrift a large amount of electric energy, obtain beneficial effect.
Drawings
Fig. 1 is a system block diagram of a battery pack energy conversion device according to an embodiment of the present utility model.
Detailed Description
The present utility model will be described in detail with reference to specific embodiments and drawings.
Referring to fig. 1, a battery pack energy conversion device provided by an embodiment of the utility model includes a control board, a 7KW AC-DC unit, a 20KW DC-AC unit, a 10 inch touch display screen, a relay unit, and a 12V20AH lithium battery pack, and has three working modes of mains charging, battery pack mutual charging and inversion output.
The control board comprises a main control chip, a data memory, an input/output interface and a communication interface, wherein the main control chip is the core of the system, and the management, detection, control and protection functions of the whole battery pack energy saving conversion device are realized through the input/output interface and the communication interface.
The model of the main control chip used by the control board in this embodiment is: AT32F407VCT7.
The communication interface comprises an RS485 interface and a CAN interface.
The control board is connected with the battery system, the 7KW AC-DC unit, the 20KW DC-DC unit and the 20K DC-AC unit through the CAN interface, is connected with the 10 inch touch display screen through the RS485 interface, realizes communication to exchange information, and is connected with the relay unit through the input and output interface to control and operate.
The external interface comprises a mains supply input interface, a battery charging interface, a battery discharging interface and an inversion output interface, wherein the inversion output interface can be provided with three-phase alternating current output and three single-phase alternating current output interfaces, namely a 6KW air-break interface F and two 2KW socket interfaces A, B.
Specifically, the mains supply input interface is used for accessing mains supply, the input voltage range is 90V-280 VAC, 110VAC and 220VAC voltage standards are compatible, and the battery and the 12V20AH lithium battery module are charged.
And the battery module with the communication interface is communicated with the control panel through a CAN interface of the battery charging interface.
The battery module to be discharged is connected to the battery discharging interface, the battery voltage range is 100 VDC-750 VDC, the battery module with the communication interface is communicated with the control board through the CAN interface of the battery discharging interface, and the battery module is stored in a warehouse for a long time and needs to be maintained regularly, so that the battery module is charged and discharged.
The inverter output interface outputs three-phase alternating current and is divided into three 220VAC single-phase outputs, wherein the three outputs are a 6KW socket with an air switch and two sockets with 2KW, and the three sockets supply power to electric equipment of a maintenance service station under the condition of power failure of the commercial power.
The relay unit comprises a source input selection relay unit and a source output selection relay unit, the relay unit is connected with an external interface, and under the control of the control board, the relay unit and the external interface are controlled to select required input power sources and output required power sources.
The communication interface comprises an RS485 interface and a CAN interface, wherein the RS485 interface is connected with a 10-inch touch display screen, and the CAN interface bus is connected with a 7KW AC-DC unit, a 20KW DC-AC unit and a battery pack.
The control board reads current and voltage data of the 7KW AC-DC unit, the 20KW DC-DC unit and the 20KW DC-AC unit through the CAN interface, monitors working states of all external interfaces in real time, and achieves overvoltage, undervoltage, overcurrent and short-circuit protection functions of an input side and an output side of the battery pack energy conversion device.
The control board reads the voltage and the temperature of each unit cell in the corresponding battery pack through the CAN interface of the battery discharging interface or the CAN interface of the battery charging interface, and monitors the overvoltage, undervoltage, overtemperature and low temperature states of the battery.
The 7KW AC-DC unit inputs alternating current or direct current, outputs direct current through rectification and conversion, charges a battery pack to be charged, and inputs a voltage range: 90 VAC-280 VAC or 100 VDC-400 VDC, and outputting voltage range: 50 VDC-750 VDC, current range: 0-20A, 7KW of output power, when the input voltage is 220 VAC-280 VAC, the 7KW AC-DC unit can output 7KW of maximum power; when the input voltage is between 90VAC and 220VAC, the 7KW AC-DC unit is in a power limiting mode. When the input voltage is 350 VDC-400 VDC, the 7KW AC-DC unit can output 7KW of maximum power; the 7KW AC-DC unit is in a power limited mode when the input voltage is between 100VDC and 350 VDC.
The 20KW DC-DC unit outputs direct current after boosting or reducing the voltage of the input direct current, and the input voltage range is as follows: 260 VDC-900 VDC, and the output voltage range is: 100 VDC-750 VDC, current range: 0-50A, 20KW of output power, when the input voltage is 600 VDC-800 VDC, the 20KW DC-DC unit can output the maximum power 20KW; other voltage ranges, the 20KW DC-DC unit is in a power limited mode.
The 20KW DC-AC unit is controlled by the control board, and is used for inputting direct current, generating three-phase alternating current through inversion conversion, outputting three-phase alternating current or single-phase alternating current according to the requirement, and outputting the direct current input voltage range: 100 VDC-750 VDC, maximum current 40A, AC output voltage range: the three-phase alternating current 304 VAC-4815 VAC is adjustable, the output power of the three-phase alternating current is 20KW, and the output power of the single-phase alternating current is 6.6KW.
The 10-inch touch display screen comprises a touch display screen, a WIFI transceiver module and a 4G module are arranged in the touch display screen, an android system is adopted, the working state of the battery pack energy conversion device can be displayed in real time, the state of each external interface is displayed, the information of the charge and discharge battery is displayed, the working mode of the battery pack energy conversion device can be selected, the model of the charge and discharge battery module which is actually connected can be selected, parameters such as target charge and discharge voltage, current and battery residual capacity are automatically matched, parameters such as target charge and discharge voltage and current are set, protection parameters are set, historical log data are checked, system state information can be sent to a cloud server through WIFI or 4G, system programs can be updated through the cloud server, the type of the battery module is increased, and the like.
The 12V20AH lithium battery pack is used for supplying power to modules such as a control board and a touch display screen, the lithium battery pack is provided with an alternating current charging module and a direct current charging module, when commercial power exists, the charging module converting 220VAC of the commercial power into 14V of the direct current charges the 12V20AH lithium battery pack, when no commercial power exists, a discharging battery is connected to a battery discharging interface, and the discharging battery is used for charging the 12V20AH lithium battery pack by the direct current charging module.
The battery pack energy conversion device has three working modes of mains charge, battery pack mutual charge and inversion output.
Specifically, the battery pack energy conversion device controls a source input selection relay unit, a source output selection relay unit, an external interface, a 7KW AC-DC unit, a 20KW DC-DC unit and a 20KW DC-AC unit in a control panel to realize three working modes of mains supply charging, battery pack mutual charging and inversion output.
Specifically, in the commercial power charging working mode, the battery pack which is connected to the battery charging interface is charged by commercial power, 90-280VAC of the commercial power is connected to the commercial power input interface and is sent to the input end of the source input relay unit, the control panel controls the output of the source input relay unit to convert the commercial power of 90-280VAC into the input end of the 7KW AC-DC unit, and the direct current of 100-750VDC is output to the battery charging interface to charge the battery pack through rectification conversion of the 7KW AC-DC unit.
Specifically, in the mutual charging mode of the battery packs, one battery pack is used for charging the other battery pack, the battery discharging interface is connected with the discharging battery pack, the battery charging interface is connected with the battery pack to be charged, when the voltage of the discharging battery of the battery discharging interface is more than or equal to 260VDC, the control board controls the source input relay unit to output direct current with rated voltage after being connected to the input end of the 20KW DC-DC unit, the direct current is sent to the battery charging interface by the source output relay unit under the control of the control board, the battery pack to be charged is charged, when the voltage of the discharging battery of the battery discharging interface is less than 260VDC, the control board controls the source input relay unit to output direct current with rated voltage after being converted by the 27KW AC-DC unit, the source output relay unit is sent to the battery charging interface under the control board, and the battery pack to be charged is charged, and the battery pack energy conversion device of the embodiment automatically selects the battery pack type selected according to a 10-inch touch display screen.
When the maintenance station maintains the inventory battery packs, the battery packs are required to be charged and discharged, and the battery packs are charged and discharged by using the mutual charging working mode of the battery packs, so that a large amount of electric energy can be saved, and the maintenance cost is reduced.
Specifically, in the battery inversion working mode, when mains supply fails, electric energy stored in a battery pack is converted into three-phase alternating current through inversion to supply power to alternating current electric equipment of a maintenance site, a battery discharging interface is connected with a discharging battery pack, the discharging battery pack is output to the input end of a source input relay unit, a control board controls the source input relay unit, the output voltage of the discharging battery pack is output and connected to the input end of a 20KW DC-AC unit through the input relay unit, the three-phase alternating current with rated voltage is output after the inversion conversion of the 20KW DC-AC unit, and the three-phase alternating current is sent to an inversion output interface by the source output relay unit under the control of the control board and is divided into three single-phase 220VAC alternating current outputs, wherein one-phase 220VAC alternating current output is a 6KW air switch interface, and the other two-phase 220VAC alternating current output is a 2KW socket interface.
The battery pack energy conversion device is provided with constant current and constant power discharging modes, parameters such as charging and discharging current, voltage, cut-off monomer voltage and the like are set through a 10-inch touch display screen, the monomer voltage is collected through CAN communication, whether the charging and discharging current and the voltage reach cut-off conditions or not is judged, and the test meets the cut-off conditions and works automatically.
In this embodiment, the battery pack energy conversion device supports a 100V to 750V battery pack system, which can cover most of the battery systems on the market, and since the control logic inside the battery pack energy conversion device control board is the same, it is possible to support a battery system of 1000V or even higher by replacing the corresponding conversion unit module.
Among the above-mentioned battery package energy conversion device, possess three kind commercial power charging, battery package mutual charging and contravariant output mode, can satisfy the demand of the maintenance guarantee work of new energy vehicle battery system under the various circumstances of service station, improve the efficiency that battery system maintained the guarantee work, practice thrift a large amount of electric energy, obtain beneficial effect.
It should be noted that the present utility model is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present utility model, and these changes according to the inventive spirit of the present utility model should be included in the scope of the present utility model as claimed.
Claims (10)
1. The battery pack energy conversion device is characterized by comprising a control board, a DC-DC unit, an AC-DC unit, a DC-AC unit, a relay unit, an external interface, a man-machine interaction unit and a power supply unit, wherein the control board is respectively and electrically connected with the DC-DC unit, the AC-DC unit, the DC-AC unit, the relay unit, the man-machine interaction unit and the power supply unit, the relay unit is electrically connected with the external interface, and the battery pack energy conversion device has three working modes of mains charge, battery pack mutual charge and inversion output;
the control panel includes main control chip, data memory, input/output interface, communication interface, main control chip is the core of battery package energy conversion device, main control chip's model is: AT32F407VCT7;
the communication interface comprises an RS485 interface and a CAN interface, the control board is connected with the man-machine interaction unit through the RS485 interface, the control board is connected with the DC-DC unit, the AC-DC unit, the DC-AC unit and the battery pack through the CAN interface, and the control board is connected with the relay unit through the input and output interface.
2. The battery pack energy conversion device according to claim 1, wherein the AC-DC unit inputs alternating current or direct current under control of the control board, rectifies the input alternating current or direct current into direct current, and the output direct current charges the battery pack to be charged;
the DC-DC unit outputs direct current through boosting or reducing conversion under the control of the control panel, and has a work mode of limiting output power;
the DC-AC unit is controlled by the control board, inputs direct current, generates alternating current through inversion, and can output three-phase alternating current or single-phase alternating current.
3. The battery pack energy conversion device of claim 1, wherein the external interface comprises a mains input interface, a battery charging interface, a battery discharging interface, an inverter output interface, the inverter output interface being provided with a three-phase or single-phase ac output interface.
4. The battery pack energy conversion device of claim 3, wherein the relay unit comprises a source input selection relay unit and a source output selection relay unit, and the relay unit and the external interface are controlled to select an input power source required for connection and an external interface for outputting the power source under the control of the control board.
5. The battery pack energy conversion device according to claim 1, wherein the control board is used for collecting relevant parameters of the battery pack in real time through CAN interface communication, the control board is used for setting the relevant parameters of the battery pack through the man-machine interaction unit, and the control board is used for reading working parameters of the DC-DC unit, the AC-DC unit and the DC-AC unit through the CAN interface and monitoring working states of the external interface in real time.
6. The battery pack energy conversion device according to claim 1, wherein the man-machine interaction unit comprises a touch display screen, and a WIFI transceiver module and a 4G module are arranged in the touch display screen;
the man-machine interaction unit sets parameters of the battery pack energy conversion device through the touch display screen, states and information of each unit of the battery pack energy conversion device are displayed, and the WIFI transceiver module and the 4G module send state information of the battery pack energy conversion device to the cloud server.
7. The battery pack energy conversion device of claim 4, wherein in the mains charging mode of operation, mains input alternating current is connected to the mains input interface, to the source input selection relay unit input, mains alternating current is connected to the AC-DC unit input under control of the control board, direct current is rectified and converted by the AC-DC unit, the control board controls output of the source output selection relay unit, direct current rectified and converted by the AC-DC unit is connected to the battery charging interface, and a battery pack connected to the battery charging interface is charged.
8. The battery pack energy conversion device of claim 4, wherein in the battery pack inter-charge operation mode, the control board controls the source input selection relay unit to connect the battery pack connected to the battery discharge interface to the DC-DC unit input terminal, the DC power output after being boosted or dropped by the DC-DC unit, and the control board controls the output of the source output selection relay unit to connect the DC power output by the DC-DC unit to the battery charge interface to charge the battery pack connected to the battery charge interface.
9. The battery pack energy conversion device of claim 4, wherein in the inversion output operation mode, the control board controls the source input selection relay unit to connect the battery pack connected to the battery discharge interface to the DC-AC unit input terminal, the DC-AC unit to invert the direct current of the battery pack connected to the battery discharge interface into alternating current, and the control board controls the source output selection relay unit to output the inverted alternating current of the DC-AC unit to the inversion output interface to supply power to the electric device.
10. The battery pack energy conversion device according to claim 1, wherein the power supply unit is a lithium battery module, the lithium battery module is used for supplying power to the control panel and the touch display screen, the lithium battery module has alternating current charging and direct current charging functions, the lithium battery module is charged by a charging module for converting commercial power into direct current when commercial power is available, and the lithium battery module is charged by the battery pack inter-charging operation mode or the inversion output operation mode when commercial power is not available.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413129.4U CN220043045U (en) | 2022-12-20 | 2022-12-20 | Battery pack energy conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413129.4U CN220043045U (en) | 2022-12-20 | 2022-12-20 | Battery pack energy conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220043045U true CN220043045U (en) | 2023-11-17 |
Family
ID=88723936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223413129.4U Active CN220043045U (en) | 2022-12-20 | 2022-12-20 | Battery pack energy conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220043045U (en) |
-
2022
- 2022-12-20 CN CN202223413129.4U patent/CN220043045U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110803051B (en) | Energy storage type charging pile and charging system | |
| CN205846815U (en) | A kind of electric automobile split type DC charging motor system | |
| CN203339769U (en) | Online energy storage power supply for photovoltaic and mains supply complementary input | |
| CN111224402A (en) | Direct-current multi-microgrid system and control method | |
| CN103178553A (en) | Household hybrid power supply system | |
| CN111682569A (en) | Intelligent control's energy storage system | |
| CN117220323B (en) | Method and device for controlling network connection and disconnection | |
| CN113258605A (en) | Intelligent sharing method, system and control method for base station energy | |
| CN220043045U (en) | Battery pack energy conversion device | |
| CN211480931U (en) | Direct-current multi-microgrid system | |
| CN113659673A (en) | Quick charging and grid-connected connecting device based on energy storage power supply and working method thereof | |
| CN211859616U (en) | Energy storage and charging integrated system | |
| CN110492591B (en) | Power supply system, power supply control method thereof and computer readable storage medium | |
| CN209844611U (en) | Battery charging and discharging equipment | |
| CN219576654U (en) | Micro-grid circuit system sharing battery and energy storage equipment | |
| CN116632986B (en) | Direct-current storage and charging system and charging control method thereof | |
| CN220421472U (en) | Direct current stores up fills system | |
| CN115313612B (en) | 48V direct current reserve integrated power supply system, and charging and discharging control method and application thereof | |
| CN218771326U (en) | Multifunctional energy storage circuit | |
| CN215911911U (en) | Intelligent sharing system for base station energy | |
| CN203788008U (en) | DC stand-by power supply of remote communication device | |
| CN102969779B (en) | A kind of direct current exports uninterruptible power system and control method thereof | |
| CN221767648U (en) | Power distribution system and power supply system with self-power supply capability in off-grid state | |
| CN217115723U (en) | Power supply system of communication base station | |
| CN212323743U (en) | Organic Rankine cycle power generation, charging and discharging energy storage integrated system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |