CN219811982U - Portable energy storage power supply - Google Patents

Portable energy storage power supply Download PDF

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Publication number
CN219811982U
CN219811982U CN202320829931.7U CN202320829931U CN219811982U CN 219811982 U CN219811982 U CN 219811982U CN 202320829931 U CN202320829931 U CN 202320829931U CN 219811982 U CN219811982 U CN 219811982U
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China
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module
unit
electrically connected
power supply
energy storage
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CN202320829931.7U
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Chinese (zh)
Inventor
廖尚辉
陈英
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Fujian Times Nebula Technology Co Ltd
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Fujian Times Nebula Technology Co Ltd
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Priority to CN202320829931.7U priority Critical patent/CN219811982U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model discloses a portable energy storage power supply, which comprises a battery module and a functional module; the battery module comprises a battery module, a battery management system, a man-machine interaction unit and at least one transmission unit, wherein the battery management system is respectively and electrically connected with the battery module and the transmission unit, and the man-machine interaction unit controls the battery module through the battery management system; the transmission unit is detachably and electrically connected with the functional modules, and is compatible with at least two functional modules. The various functions are separated into different modules independently and are electrically connected with the battery module in a detachable manner, so that corresponding functional modules can be assembled according to requirements; meanwhile, the redundant functional modules are disassembled, so that the volume and the weight of the whole device are reduced, and the space utilization rate is improved; in addition, when a great amount of requirements are met for a certain functional module, a plurality of groups of same functional modules can be assembled, and the functionality of the energy storage power supply is improved; and finally, the damage of the functional module does not affect the use of the whole energy storage power supply, and the maintenance cost is low.

Description

Portable energy storage power supply
Technical Field
The utility model relates to the technical field of energy storage, in particular to a portable energy storage power supply.
Background
Along with the rapid development of the related energy storage technology, the portable energy storage equipment gradually goes into the field of view of the masses, the use scenes are more and more, the portable energy storage equipment comprises outdoor leisure, outdoor exploration, tourism, emergency electricity utilization, relatives and friends gathering and the like, and the functional requirements on the portable energy storage equipment are also increased.
Along with the continuous richness of functions, the volume, the weight and the cost of the portable energy storage power supply equipment are also continuously increased, and the portable energy storage power supply equipment is not easy to carry. Although the updated and iterated product has comprehensive functions, the number of interfaces of each function cannot be adjusted, and related functions cannot be removed and added according to the requirements of users. In addition, products with rich functions and multiple output ports are often integrated in one frame, and if a certain functional unit is damaged and needs to be replaced or maintained, the whole energy storage equipment needs to be disassembled or integrally assembled and returned to a factory, so that the later maintenance of the products is not facilitated.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the portable energy storage power supply is provided, the assembly mode of the energy storage power supply is optimized, and the detachability of the functional module is realized.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a portable energy storage power supply comprises a battery module and a functional module;
the battery module comprises a battery module, a battery management system, a man-machine interaction unit and at least one transmission unit, wherein the battery management system is respectively and electrically connected with the battery module and the transmission unit, and the man-machine interaction unit controls the battery module through the battery management system;
the transmission unit is detachably and electrically connected with the functional modules, and is compatible with at least two functional modules.
Further, the transmission unit includes a relay and a coupler, the relay is electrically connected with the battery management system and the coupler, respectively, and the coupler is detachably and electrically connected with the functional module.
Further, one of the functional modules is a dc output module, the dc output module includes a voltage reducing unit and a plurality of dc output ports, the voltage reducing unit is electrically connected to the coupler, and the plurality of dc output ports are electrically connected to the voltage reducing unit;
the direct current output module further comprises an emergency starting unit and an emergency output port, wherein the emergency starting unit is electrically connected with the coupler, and the emergency output port is electrically connected with the emergency starting unit.
Further, one functional module is an ac output module, the ac output module includes an inverter unit and a plurality of ac output ports, the inverter unit is electrically connected with the coupler, and the plurality of ac output ports are respectively electrically connected with the inverter unit.
Further, the number of the transmission units is 5, and at least one functional module connected with the transmission units is an alternating current output module.
Further, one of the functional modules is a USB output module, the USB output module includes a USB voltage reducing unit and a plurality of USB sockets, the USB voltage reducing unit is electrically connected to the coupler, and the plurality of USB sockets are respectively electrically connected to the USB voltage reducing unit.
Further, a certain functional module is a direct current charging module, the direct current charging module comprises a DC/DC charging unit and a direct current input port, the DC/DC charging unit is electrically connected with the coupler, and the direct current input port is electrically connected with the DC/DC charging unit.
Further, one of the functional modules is an ac charging module, the ac charging module includes a rectifying charging unit and an ac input port, the rectifying charging unit is electrically connected with the coupler, and the ac input port is electrically connected with the rectifying charging unit.
Further, the coupler includes a power terminal detachably electrically connected with the functional module, a communication terminal and a connection state detection terminal for detecting a connection state of the battery module with the functional module.
Further, still include the base module, the base module includes fixed unit, mobile unit and spacing unit, the mobile unit with spacing unit with the bottom assembly connection of fixed unit, fixed unit with the bottom assembly connection of battery module.
The utility model has the beneficial effects that: the utility model provides a portable energy storage power supply, which is characterized in that various functions are independently separated into different modules and are detachably and electrically connected with a battery module, so that the portable energy storage power supply has the following gains:
(1) The user can reasonably select the required modules according to the use scene, so that the function combination of the whole portable energy storage power supply is diversified.
(2) The unnecessary functional modules can be detached and separated, so that the weight and the volume of the whole device are reduced, the power consumption is reduced, and the energy is saved.
(3) After the product split is each module, can carry out structural adjustment according to actual environment during the use, conveniently accomodate simultaneously and transport, promote space utilization.
(4) If the requirements for a certain functional interface are more, a plurality of identical modules can be installed, and the expansibility is strong.
(5) After a certain functional module is damaged, only the whole device needs to be disassembled and maintained, the use of other functions of the whole device is not affected, and the maintenance cost is low.
Drawings
FIG. 1 is a system block diagram of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 2 is an exploded view of a portable energy storage power supply according to an embodiment of the present utility model;
FIG. 3 is a system block diagram of a DC output module of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 4 is a system block diagram of an AC output module of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 5 is a system block diagram of a USB output module of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 6 is a system block diagram of a DC charging module of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 7 is a system block diagram of an AC charging module of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 8 is a schematic diagram of a plug face terminal of a coupler of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 9 is a schematic diagram of a connection of terminals of a coupler of a portable energy storage power supply according to an embodiment of the utility model;
fig. 10 is a schematic diagram illustrating connection of terminals of a coupler of a portable energy storage power supply according to an embodiment of the utility model;
FIG. 11 is a logic diagram illustrating the operation of a functional module of a portable energy storage power supply according to an embodiment of the present utility model;
description of the reference numerals:
1. a battery module; 2. a functional module; 3. and a base module.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 11, a portable energy storage power supply includes a battery module 1 and a functional module 2;
the battery module 1 comprises a battery module, a battery management system, a man-machine interaction unit and at least one transmission unit, wherein the battery management system is respectively and electrically connected with the battery module and the transmission unit, and the man-machine interaction unit controls the battery module 1 through the battery management system;
the transmission unit is detachably and electrically connected with the functional modules 2, and is compatible with at least two functional modules 2.
From the above description, the beneficial effects of the utility model are as follows: the utility model provides a portable energy storage power supply, which is characterized in that various functions are independently separated into different modules and are detachably and electrically connected with a battery module, so that corresponding functional modules 2 can be assembled according to requirements, and the diversity of the module functions is realized; meanwhile, the redundant functional modules 2 are disassembled, so that the volume and weight of the whole device are reduced, and the space utilization rate is improved; in addition, when a great amount of requirements are met for a certain functional module 2, a plurality of groups of same functional modules 2 can be assembled, so that the functionality of the energy storage power supply is improved; finally, the damage of the functional module 2 does not affect the use of the whole energy storage power supply, and the maintenance cost is low.
Further, the transmission unit includes a relay electrically connected to the battery management system and the coupler, respectively, and a coupler detachably electrically connected to the functional module 2.
As is apparent from the above description, a Battery Management System (BMS) is connected to the relay, and controls the communication and disconnection of the battery module 1 and the functional module 2; meanwhile, the coupler is connected with the functional module 2, so that matching and transmission of the circuit and the signal between the two modules are realized.
Further, a certain functional module 2 is a dc output module, where the dc output module includes a voltage reducing unit and a plurality of dc output ports, the voltage reducing unit is electrically connected to the coupler, and the plurality of dc output ports are electrically connected to the voltage reducing unit.
Further, the direct current output module further comprises an emergency starting unit and an emergency output port, wherein the emergency starting unit is electrically connected with the coupler, and the emergency output port is electrically connected with the emergency starting unit.
As can be seen from the above description, the functional module 2 connected to the battery module 1 is a dc output module, where the dc output module is connected to the coupler through a voltage reduction unit, and then is transmitted to the outside through a dc output port after being subjected to voltage reduction adjustment, specifically, a certain voltage reduction unit is set as a 12V voltage reduction unit according to the requirement, and the matched dc output port is set as a 12V output port or a cigar lighter port; a certain voltage reducing unit is set as a 24V voltage reducing unit according to the requirement, and a matched direct current output port is set as a 24V output port; in addition, the direct current output module has an emergency starting function, is connected with the electric car through an emergency starting port, and the emergency starting unit absorbs heavy current in the moment of the ignition of the electric car, so that the emergency starting of the electric car with power shortage is realized.
Further, a certain functional module 2 is an ac output module, where the ac output module includes an inverter unit and a plurality of ac output ports, the inverter unit is electrically connected to the coupler, and the plurality of ac output ports are respectively electrically connected to the inverter unit.
As can be seen from the above description, the inverter unit is used to convert direct current and alternating current, and detect the whole conversion process, and provide protection functions of overvoltage, overcurrent, overload and overtemperature, so as to realize high power output of alternating current; specifically, the number of the transmission units is 5, and at least one functional module connected with the transmission units is an alternating current output unit.
Further, a certain functional module 2 is a USB output module, where the USB output module includes a USB voltage reducing unit and a plurality of USB sockets, the USB voltage reducing unit is electrically connected to the coupler, and the plurality of USB sockets are respectively electrically connected to the USB voltage reducing unit.
As can be seen from the above description, the USB voltage reducing unit provides a voltage reducing effect according to the actual interface, and outputs the voltage reduced voltage to the USB socket after the voltage is reduced, thereby implementing a USB output function; specifically, the USB interface is set to be of three types, namely type-A, type-B, type-C.
Further, a certain functional module 2 is a DC charging module, the DC charging module includes a DC/DC charging unit and a DC input port, the DC/DC charging unit is electrically connected to the coupler, and the DC input port is electrically connected to the DC/DC charging unit.
As can be seen from the above description, the output parameters of the battery module 1 are converted into corresponding demand parameters according to the demands by the voltage class conversion of the DC/DC charging unit, thereby realizing the DC charging function; specifically, a Battery Management System (BMS) dynamically adjusts the charging power according to a typical state, and specifically, a direct current input port may be connected to a vehicle cigar lighter, a photovoltaic charging panel, a storage battery, and the like.
Further, a certain functional module 2 is an ac charging module, the ac charging module includes a rectifying charging unit and an ac input port, the rectifying charging unit is electrically connected with the coupler, and the ac input port is electrically connected with the rectifying charging unit.
As is apparent from the above description, the conversion of direct current and alternating current is performed by the rectifying and charging unit, and at the same time, the battery management system dynamically adjusts the charging power according to the state of the battery cells in the battery module 1, thereby realizing the alternating current charging function.
Further, the coupler includes a power terminal detachably electrically connected with the functional module 2, a communication terminal for detecting a connection state of the battery module 1 and the functional module 2, and a connection state detection terminal.
As can be seen from the above description, the coupler performs power transmission with the functional module 2 through the power terminal, performs information exchange through real-time communication between the communication terminal and the Battery Management System (BMS) and performs connection state judgment through the connection state detection terminal, and performs power transmission of the two modules under the condition that the connection of the battery module 1 and the functional module 2 is normal, so as to ensure operation safety.
Further, the battery pack comprises a base module 3, wherein the base module 3 comprises a fixing unit, a moving unit and a limiting unit, the moving unit and the limiting unit are connected with the bottom end of the fixing unit in an assembling mode, and the fixing unit is connected with the bottom of the battery module in an assembling mode.
The utility model relates to a portable energy storage power supply, which can be used for meeting the requirements of mobile energy storage or energy charging, and is described below with reference to specific embodiments:
the first embodiment of the utility model is as follows: referring to fig. 1 to 11, a portable energy storage power supply includes a battery module 1 and a functional module 2; the battery module 1 comprises a battery module, a battery management system, a man-machine interaction unit and a transmission unit, wherein the battery management system is respectively and electrically connected with the battery module and the transmission unit, and the man-machine interaction unit controls the battery module 1 through the battery management system; the transmission unit is detachably and electrically connected with the functional module 2, and is compatible with at least two functional modules; the transmission unit includes a relay and a coupler, the relay is electrically connected to the battery management system and the coupler, respectively, and the coupler is detachably and electrically connected to the functional module 2. Besides, the battery pack also comprises a base module 3, wherein the base module 3 comprises a fixing unit, a moving unit and a limiting unit, the moving unit and the limiting unit are connected with the bottom end of the fixing unit in an assembling manner, and the fixing unit is connected with the bottom of the battery module in an assembling manner.
In this embodiment, the battery module 1 is an energy source and a base module of the whole system, wherein the battery module can be formed by aluminum bar welding after a plurality of battery cells are connected in series and parallel, and has the characteristics of large capacity and long life cycle; the battery management system BMS can monitor information such as voltage, current, temperature, battery state of charge (SOC), battery state of health (SOH) and the like of the battery module 1 in real time, protect the battery module 1, and can also communicate with other modules of the system; the man-machine interaction module is provided with a button and a display screen, the button can wake up the BMS or enable the BMS to sleep, and the screen can display the current SOC and the system running state of the battery pack; the relay is controlled by the BMS and can be connected or disconnected with the main loop of other functional modules 2; the coupler is responsible for realizing the electrical matching of the battery module 1 and the functional module 2; the fixing unit in the base module 3 is used for assembling the battery module 1, and specifically, a buckle connection or a threaded connection can be adopted; the limiting unit can be a foldable supporting column, and the supporting column is unfolded to be responsible for fixing the whole battery module 1 after the position is selected; the mobile unit may specifically be a universal wheel, preferably 4 universal wheels, mounted at the lower end of the base module 3.
As can be seen from the above description, in the present embodiment, by separating various functions into different modules individually and detachably electrically connecting with the battery module, the corresponding functional modules 2 can be assembled as required, realizing the diversity of module functions; meanwhile, the redundant functional modules 2 are disassembled, so that the volume and weight of the whole device are reduced, and the space utilization rate is improved; in addition, when a great amount of requirements are met for a certain functional module 2, a plurality of groups of same functional modules 2 can be assembled, so that the functionality of the energy storage power supply is improved; finally, the damage of the functional module 2 does not affect the use of the whole energy storage power supply, and the maintenance cost is low.
The second embodiment of the utility model is as follows: referring to fig. 1 to 11, in the first embodiment, a certain functional module 2 is a dc output module, where the dc output module includes a voltage reduction unit and a plurality of dc output ports, the voltage reduction unit is electrically connected to the coupler, and the plurality of dc output ports are electrically connected to the voltage reduction unit; specifically, the direct current output module further comprises an emergency starting unit and an emergency output port, wherein the emergency starting unit is electrically connected with the coupler, and the emergency output port is electrically connected with the emergency starting unit;
namely, in the direct current output module, the direct current output module is connected with the coupler through the voltage reduction unit, and then is transmitted to the outside through the direct current output port after voltage reduction adjustment, specifically, one voltage reduction unit is set as a 12V voltage reduction unit according to the requirement, and the matched direct current output port is set as a 12V output port or a cigarette lighter port; a certain voltage reducing unit is set as a 24V voltage reducing unit according to the requirement, and a matched direct current output port is set as a 24V output port; in addition, the direct current output module has an emergency starting function, is connected with the electric car through an emergency starting port, and the emergency starting unit absorbs heavy current in the moment of the ignition of the electric car, so that the emergency starting of the electric car with power shortage is realized.
Alternatively, the functional module 2 may be further configured as an ac output module, a dc charging module, an ac charging module, and a USB output module. The functional module 2 can complete corresponding functional conversion through voltage adjustment or current inversion according to the structure.
In addition, the functional module 2 can be freely detached or installed according to actual requirements, and not only can functional modules 2 with different functions be assembled, for example, the functional modules 2 connected with the battery module are provided with an alternating current output module, a direct current charging module and a USB output module, but also can be provided with the same multiple groups of direct current output modules.
Preferably, the number of the transmission units is 5, and the functional modules connected with the transmission units are respectively: the device comprises a direct current output module, an alternating current output module, a direct current charging module, an alternating current charging module and a USB output module.
The third embodiment of the utility model is as follows: on the basis of the second embodiment, the coupler includes a power terminal, a communication terminal, and a connection state detection terminal, the power terminal being detachably electrically connected with the function module 2, the communication terminal and the connection state detection terminal being for detecting the connection state of the battery module 1 and the function module 2.
Specifically, as shown in fig. 8, the coupler has 6 terminals, which are power terminals for carrying high currents when the system is in operation: p+ and P-, S1 and S2 terminals for communication between the battery module 1 and other modules, and H1 and H2 terminals for judging the connection state of the modules. As shown in fig. 9, the working principle thereof is as follows: in the coupler connection process, P+ and P-are conducted first, so that when the system detects that the connection state detection terminal is normally connected, the power terminal is connected in place first, and poor contact during operation is avoided. Meanwhile, in the coupler disconnection process, the communication terminal and the connection state terminal are disconnected firstly, the system actively protects the loop of the P+ and P-terminals through the relay, and the power terminal is prevented from being pulled out in a live mode to cause arc spraying or ablation.
Specifically, as shown in fig. 10 and 11, taking the connection of the coupler and the ac output module as an example, the principle of judging the connection state of the coupler is explained: k+ and K-in the battery module 1 are relays on the main loop P+ and P-, and the relays are controlled by a battery control system (BMS); after the coupler is connected in place, the battery module 1 is connected with the main positive and the main negative of the alternating current output module inversion unit through P+ and P-terminals; s1 and S2 are communication terminals for the BMS in the battery module 1 to communicate with the inverter in the AC output module; the connection state detection terminal in the battery module 1 outputs direct current +12V voltage through H1 and H2, a resistor R1 is arranged between +12V and the H1 terminal, a voltage connection detection point is arranged between the resistor and the H1 terminal, and the H1 terminal and the H2 terminal are connected with each other through a resistor R2 with the same resistance value as R1 in the alternating current output module.
Before the coupler is completely connected in place, the voltage detected by the connection state detection terminal is 12V, and the battery module 1 does not attract the relays k+, K-. After the coupler is connected in place, after the voltage division of R1 and R2, when the voltage of the connection detection point is +6V, the BMS tries to communicate with the inversion unit of the alternating current output module at the moment, and after confirming that both modules have no faults, the BMS controls the relay K+ and K-to be attracted.
In summary, according to the portable energy storage power supply provided by the utility model, various functions are separated into different modules independently, and the portable energy storage power supply is detachably and electrically connected with the battery module, so that the portable energy storage power supply has the following gains:
(1) The user can reasonably select the required modules according to the use scene, so that the function combination of the whole portable energy storage power supply is diversified.
(2) The unnecessary functional modules can be detached and separated, so that the weight and the volume of the whole device are reduced, the power consumption is reduced, and the energy is saved.
(3) After the product split is each module, can carry out structural adjustment according to actual environment during the use, conveniently accomodate simultaneously and transport, promote space utilization.
(4) If the requirements for a certain functional interface are more, a plurality of identical modules can be installed, and the expansibility is strong.
(5) After a certain functional module is damaged, only the whole device needs to be disassembled and maintained, the use of other functions of the whole device is not affected, and the maintenance cost is low.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims (10)

1. The utility model provides a portable energy storage power supply which characterized in that: comprises a battery module and a functional module;
the battery module comprises a battery module, a battery management system, a man-machine interaction unit and at least one transmission unit, wherein the battery management system is respectively and electrically connected with the battery module and the transmission unit, and the man-machine interaction unit controls the battery module through the battery management system;
the transmission unit is detachably and electrically connected with the functional modules, and is compatible with at least two functional modules.
2. A portable energy storage power supply according to claim 1, characterized in that: the transmission unit comprises a relay and a coupler, wherein the relay is respectively and electrically connected with the battery management system and the coupler, and the coupler is detachably and electrically connected with the functional module.
3. A portable energy storage power supply according to claim 2, characterized in that: the power supply device comprises a coupler, a functional module and a direct current output module, wherein one functional module is a direct current output module, the direct current output module comprises a voltage reduction unit and a plurality of direct current output ports, the voltage reduction unit is electrically connected with the coupler, and the plurality of direct current output ports are electrically connected with the voltage reduction unit;
the direct current output module further comprises an emergency starting unit and an emergency output port, wherein the emergency starting unit is electrically connected with the coupler, and the emergency output port is electrically connected with the emergency starting unit.
4. A portable energy storage power supply according to claim 2, characterized in that: the power supply device comprises a coupler, a functional module and an alternating current output module, wherein the functional module is an alternating current output module, the alternating current output module comprises an inversion unit and a plurality of alternating current output ports, the inversion unit is electrically connected with the coupler, and the plurality of alternating current output ports are respectively electrically connected with the inversion unit.
5. The portable energy storage power supply of claim 4, wherein: the number of the transmission units is 5, and at least one functional module connected with the transmission units is an alternating current output module.
6. A portable energy storage power supply according to claim 2, characterized in that: the USB output module comprises a USB voltage reduction unit and a plurality of USB sockets, wherein the USB voltage reduction unit is electrically connected with the coupler, and the USB sockets are respectively electrically connected with the USB voltage reduction unit.
7. A portable energy storage power supply according to claim 2, characterized in that: the function module is a direct current charging module, the direct current charging module comprises a DC/DC charging unit and a direct current input port, the DC/DC charging unit is electrically connected with the coupler, and the direct current input port is electrically connected with the DC/DC charging unit.
8. A portable energy storage power supply according to claim 2, characterized in that: the function module is an alternating current charging module, the alternating current charging module comprises a rectifying charging unit and an alternating current input port, the rectifying charging unit is electrically connected with the coupler, and the alternating current input port is electrically connected with the rectifying charging unit.
9. A portable energy storage power supply according to claim 2, characterized in that: the coupler comprises a power terminal, a communication terminal and a connection state detection terminal, wherein the power terminal is detachably and electrically connected with the functional module, and the communication terminal and the connection state detection terminal are used for detecting the connection state of the battery module and the functional module.
10. A portable energy storage power supply according to claim 1, characterized in that: the battery pack comprises a battery module, and is characterized by further comprising a base module, wherein the base module comprises a fixing unit, a moving unit and a limiting unit, the moving unit is connected with the bottom end of the fixing unit in an assembling manner, and the fixing unit is connected with the bottom of the battery module in an assembling manner.
CN202320829931.7U 2023-04-14 2023-04-14 Portable energy storage power supply Active CN219811982U (en)

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CN202320829931.7U CN219811982U (en) 2023-04-14 2023-04-14 Portable energy storage power supply

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Application Number Priority Date Filing Date Title
CN202320829931.7U CN219811982U (en) 2023-04-14 2023-04-14 Portable energy storage power supply

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