WO2023186101A1 - 储能设备及其充放电控制系统 - Google Patents
储能设备及其充放电控制系统 Download PDFInfo
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- WO2023186101A1 WO2023186101A1 PCT/CN2023/085496 CN2023085496W WO2023186101A1 WO 2023186101 A1 WO2023186101 A1 WO 2023186101A1 CN 2023085496 W CN2023085496 W CN 2023085496W WO 2023186101 A1 WO2023186101 A1 WO 2023186101A1
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- Prior art keywords
- battery
- battery pack
- built
- energy storage
- power
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
- H02J7/52—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially for charge balancing, e.g. equalisation of charge between batteries
- H02J7/56—Active balancing, e.g. using capacitor-based, inductor-based or DC-DC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
- H02J7/575—Parallel/serial switching of connection of batteries to charge or load circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
- H02J7/585—Sequential battery discharge in systems with a plurality of batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/855—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries
- H02J2207/40—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
- H02J7/47—Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/70—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present application relates to the field of energy storage, and in particular, to an energy storage device and its charge and discharge control system.
- Energy storage equipment can be used as outdoor power supply and emergency power supply. Equipment that requires electricity is connected to the energy storage equipment, and the energy storage equipment can supply power to the electrical equipment. When the power of the energy storage device is insufficient or exhausted, an external power supply can be connected for charging.
- the energy storage device also includes a current conversion device.
- the current conversion device converts the current flowing in and out of the battery pack so that the current can be converted into a current suitable for charging the battery pack and a current suitable for providing power to the electrical equipment. current.
- the power of the energy storage device is generally determined by the power of the internal battery pack, and the upper limit of its discharge power is limited by the power of the battery pack.
- Energy storage equipment is often classified and positioned according to different powers when it leaves the factory. Consumers generally choose energy storage equipment with a certain power to purchase according to their needs. After purchase, the maximum power of the energy storage device is limited. If the power demand of the electrical device exceeds the maximum power of the energy storage device, the energy storage device cannot effectively meet the power demand, affecting the consumer experience.
- One purpose of this application is to provide an energy storage device and its charge and discharge control system.
- the energy storage device can be expanded to meet higher power demand.
- Another object of the present application is to provide an energy storage device and its charge and discharge control system.
- the built-in battery of the energy storage device can be connected to the battery pack to achieve capacity expansion.
- the built-in battery and the battery pack are electrically connected to expand the capacity of the energy storage device. Capacity, suitable for powering larger loads.
- Another purpose of this application is to provide an energy storage device and its charge and discharge control system, which can select a suitable charging method to charge the built-in battery and battery pack according to the actual conditions of the built-in battery and battery pack.
- Another object of the present application is to provide an energy storage device and its charge and discharge control system.
- the connected battery pack When charging the energy storage device, the connected battery pack can be charged first, so that the battery pack can be charged as quickly as possible and can be used by the user. Then charge the built-in battery.
- Another object of the present application is to provide an energy storage device and its charge and discharge control system, which can use an external power supply to supply power to the load and charge the built-in battery at the same time, so that when power is stopped or interrupted from the external power supply, the built-in battery It can switch from charging state to discharging state to power the load.
- Another object of this application is to provide an energy storage device and its charge and discharge control system. After the built-in battery and the battery pack are connected in parallel, the battery pack can continue to discharge after the built-in battery is discharged, extending the discharge of the energy storage device. time.
- Another object of this application is to provide an energy storage device and its charge and discharge control system.
- the built-in battery has a low-voltage protection mechanism. After the built-in battery is discharged and enters the low-voltage protection state, the battery pack is switched to continue discharging.
- Another object of the present application is to provide an energy storage device and its charge and discharge control system, which can reversely charge the built-in battery from the battery pack to ensure the use of the energy storage device in an emergency.
- Another object of the present application is to provide an energy storage device and its charge and discharge control system, which can be discharged from the battery pack through the energy storage device in reverse direction to ensure the power demand of the load connected to the energy storage device.
- the energy storage device includes a transmitter, a built-in battery and a circuit connection of the transmitter.
- the transmitter can convert the current flowing in and out of the built-in battery, so as to Meet various electricity needs.
- the transmitter includes an input interface.
- the input interface can be connected to an external power supply and obtain current, so that the energy storage device can store power for disconnection from the external power supply. Use independently.
- the transmitter includes an inverter, which can perform AC current-DC current rectification, DC current-AC current inversion and DC current-DC current conversion. , enabling energy storage equipment to meet diverse electricity needs.
- Another object of this application is to provide an energy storage device and its charge and discharge control system.
- the transmitter also includes an output interface, and the output interface can output AC current and DC current to meet different power needs.
- the present application provides an energy storage device, including an energy storage power source and a battery pack detachably connected thereto;
- the energy storage power supply includes:
- a housing configured with a mounting portion that includes an interface; a built-in battery and an inverter, which are respectively provided in the housing and do not interfere with the mounting portion; and,
- Input interface and output interface which are respectively provided on the housing and suitable for user contact;
- the battery pack is freely detachably connected to the mounting part, and includes a power output port suitable for mechanical and electrical connection with the interface;
- the battery pack has at least 2 different operating states when configured in the energy storage power source;
- the battery pack is charged by power from one end of the energy storage power source through the mechanical and electrical connection between the power output port and the interface;
- the battery pack is coupled to the inverter through the mechanical and electrical connections between the power output port and the interface and the built-in battery, and then outputs AC current through the output interface.
- the battery pack includes at least 2 charging methods:
- Charging method one: when the input interface is connected to an external power source for charging, the battery pack receives power from the external power source for charging through the mechanical and electrical connection between the power output port and the interface;
- Charging method two When the input interface is not connected to an external power source for charging, the battery pack receives power from the built-in battery for charging through the mechanical and electrical connection between the power output port and the interface.
- one of the battery pack and the built-in battery receives power first and is charged.
- the other one receives power and is charged. Charge.
- a control key configured to selectively control whether the battery pack is coupled to the inverter.
- the built-in battery when the battery pack is controlled by the control key to be uncoupled from the inverter, the built-in battery is adapted to simultaneously supply and output power to the battery pack and the inverter, To charge the battery pack and invert the inverter to output AC current.
- the battery pack when the battery pack is controlled to be coupled to the inverter through the control key, the battery pack is adapted to supply power to the inverter for use by the inverter.
- the inverter outputs AC current.
- the built-in battery gives priority to output power for the inverter to output AC current.
- the voltage of the built-in battery decreases, When reaching a low voltage protection threshold, the battery pack is switched to output power for the inverter to output AC current.
- this application provides an energy storage device, including:
- the transmitter is suitable for connecting to an external power source to obtain power for the energy storage device, the built-in battery circuit is connected to the transmitter for charging and discharging through the transmitter, and the transmitter is suitable for connecting to a load, supply power to the load;
- the built-in battery and the power transmitter are installed in the housing;
- a battery pack the battery pack is detachably installed on the housing, and is electrically connected to the power transmitter to be charged by the energy storage device, wherein when both the built-in battery and the battery pack are required When charging, the battery pack is charged prior to the built-in battery.
- the power transmitter is connected to an external power supply, and the energy storage device is in a powered state.
- the power transmitter gives priority to the external power supply.
- the power is converted into the second charging current to complete the charging of the battery pack.
- the power transmitter converts the power from the external power supply into the first charging current to charge the built-in battery.
- the charging sequence of the battery packs from low to high is sequentially completed for the two or more battery packs. Charge.
- the charging order of the battery packs from highest to lowest is completed in sequence for the two or more battery packs. Charge.
- the power transmitter is not connected to an external power supply, the energy storage device is in an unpowered state, and the built-in battery provides discharge current to power the connected load, where the battery pack circuit connection exists
- the circuit to the energy storage device is connected in parallel to the built-in battery and the battery pack to provide power to the load.
- the energy storage device is provided with a parallel capacity control key
- the battery pack is electrically connected to the transmitter, and is electrically connected to the parallel capacity control key
- the parallel capacity control key is electrically connected to the transmitter. The operation is to control the corresponding battery pack to be connected to the built-in battery.
- the built-in battery first releases current, and then converts it into a discharge current through the transmitter, and then supplies power to the load, to the built-in battery.
- the battery pack is switched to discharge, which is converted into the discharge current via the power transmitter, and continues to supply power to the load, thereby extending the discharge time of the energy storage device.
- the built-in battery when the built-in battery is discharged to a voltage of zero, the built-in battery is completely discharged, and the battery pack is switched to discharge.
- the built-in battery when the built-in battery is discharged to a voltage lower than the first low voltage threshold, the built-in battery is completely discharged, enters a low-voltage protection state, and switches to discharge the battery pack.
- the one with the higher voltage of the battery pack and the built-in battery is first discharged until the battery pack and the built-in battery reach the In the voltage equilibrium state, the battery pack and the built-in battery discharge together, and are converted into discharge current through the power transmitter to supply power to the load.
- the battery pack and the built-in battery are connected in parallel, they are discharged together and converted into a discharge current through the power transmitter to supply power to the load, wherein the battery pack is discharged to a level lower than the second
- discharging is stopped and the low-voltage protection state is entered.
- discharging is stopped and the low-voltage protection state is entered.
- this application provides a charge and discharge control system, suitable for controlling the charging and discharging of energy storage equipment, including:
- the detection unit circuit is connected to the circuit of the energy storage device to detect the electrical information of each device connected to the circuit, wherein the detection unit detects whether the energy storage device is connected to the battery pack and further detects the Battery pack electricity information;
- An identification unit is communicatively connected to the detection unit to identify the power supply source and power demand of the energy storage device according to the electrical information detected by the detection unit;
- the comparison unit is communicatively connected to the identification unit to compare the power supply source and the power demand, and generate corresponding charging control instructions and/or discharge control instructions, wherein when the power demand is to charge the built-in battery of the energy storage device and the connected battery pack.
- the charging control instruction generated by the comparison unit is: charge the battery pack first, and after completing the charging of the battery pack, charge the battery pack. charging the built-in battery as described above; and
- a charging unit the charging unit circuit is connected to the comparison unit to execute the charging control instruction.
- the charging control instruction generated by the comparison unit further includes: according to the preset battery pack charging priority, charging the two or more energy storage devices connected to the energy storage device. Battery pack charging.
- the detection unit detects that the power transmitter is connected to a load, the identification unit identifies that the power demand is to supply power to the load, and the comparison unit compares the power supply sources identified by the identification unit. According to the power demand, a discharge control instruction is generated, wherein the charge and discharge control system also includes:
- a discharge unit the discharge unit is communicatively connected to the comparison unit to execute the discharge control instruction, control the energy storage device to output discharge current, and supply power to the load.
- the detection unit detects that the battery pack is connected to a load, and the identification unit identifies that the power supply source is the built-in battery and the battery pack can provide power, then the comparison unit generates the discharge
- the control instruction is: connect the built-in battery and the battery pack in parallel to output discharge current to supply power to the load.
- the detection unit when the detection unit detects that the battery pack is connected to the energy storage device, it is identified as a power supply source by the identification unit and can be compatible with the built-in battery.
- the detection unit detects that the parallel capacity control key of the energy storage device is triggered, and the identification unit identifies the battery pack controlled by the parallel capacity control key as the power supply source, Compatible with the built-in battery.
- the discharge control instruction further includes that the parallel output mode of the battery pack and the built-in battery is: first, the built-in battery is discharged, and after the built-in battery is completely discharged, it is switched to parallel output mode. Discharge the connected battery pack.
- the detection unit detects that the built-in battery is discharged to a voltage of zero, then the built-in battery is completely discharged, and the discharge unit switches to the battery pack for discharging.
- the detection unit detects that the built-in battery is discharged to a voltage lower than the first low voltage threshold, then the built-in battery is discharged, and the discharge unit switches to the battery pack for discharge.
- the discharge unit stops discharging the battery pack.
- the discharge control instruction further includes a parallel output mode of the battery pack and the built-in battery: first, the one with a higher voltage among the built-in battery and the battery pack is discharged, and then the one with a higher voltage is discharged. After the voltages of the built-in battery and the battery pack are equalized, the built-in battery and the battery pack are discharged together.
- the identification unit identifies two or more battery packs as the power supply sources, which can be compatible with the built-in battery, and the discharge control instruction generated by the comparison unit further It includes: after switching to the battery pack for discharge, controlling the discharge of two or more battery packs according to a preset battery pack discharge sequence.
- the battery pack discharge sequence is preset to control the discharge of each of the battery packs in parallel in sequence according to the discharge sequence from high voltage to low voltage.
- the battery pack discharge sequence is preset to control the discharge of each of the battery packs in parallel in sequence according to the discharge sequence from low voltage to high voltage.
- the battery pack discharge sequence is preset as follows: first, the battery pack with a higher voltage is discharged, and then the battery pack with a lower voltage is equalized in voltage, and then the battery pack is discharged together until both The voltage of each battery pack is balanced and discharged together.
- this application provides a charge and discharge control method for controlling the charge and discharge of energy storage equipment, including the steps:
- the built-in battery of the energy storage device and the battery pack need to be charged at the same time, and the battery pack is charged first. After the battery pack is charged, the built-in battery is charged.
- two or more battery packs are charged according to a preset battery pack charging priority.
- the battery pack and the built-in battery are connected in parallel to output discharge current to supply power to the load.
- Detecting that the battery pack is connected to the circuit of the energy storage device when connected to a load is to identify the battery pack as a power supply source.
- the battery pack can be detachably installed to the energy storage power supply and can be charged through the energy storage power supply to replenish power in a timely manner.
- the energy storage device The equipment can re-provide available battery packs for the loads to which the battery packs are adapted so that the loads to which the battery packs are adapted can continue to be used;
- the battery pack can be discharged through the energy storage power supply, easily and conveniently expanding the capacity of the energy storage power supply;
- the battery pack can be selectively coupled to the energy storage power supply to output power to the inverter of the energy storage power supply, and the inverter inverts and outputs AC current.
- the battery pack and the built-in battery are connected in parallel to supply power to the load connected to the energy storage device, extend the discharge time of the energy storage device, or increase the discharge power of the energy storage device.
- FIG. 1A is a schematic diagram of a state of an energy storage device according to a preferred embodiment of the present application.
- FIG. 1B is a schematic diagram of a state of an energy storage device according to a preferred embodiment of the present application.
- Figure 1C is a schematic diagram of an energy storage device from another angle according to a preferred embodiment of the present application.
- Figure 1D is a schematic diagram of the internal structure of an energy storage device according to a preferred embodiment of the present application.
- FIG. 2 is a schematic block diagram of an energy storage device according to a preferred embodiment of the present application.
- FIG. 3A is a schematic diagram of a working mode of a charging mode of an energy storage device according to a preferred embodiment of the present application.
- FIG. 3B is a schematic diagram of a working mode of the charging mode of an energy storage device according to a preferred embodiment of the present application.
- Figure 3C is a schematic diagram of a working mode of the charging mode of an energy storage device according to a preferred embodiment of the present application.
- Figure 4A is a schematic diagram of a working mode of a multi-functional mode of an energy storage device according to a preferred embodiment of the present application.
- Figure 4B is a schematic diagram of a working mode of a multi-functional mode of an energy storage device according to a preferred embodiment of the present application.
- FIG. 5A is a schematic diagram of a working mode of the power supply mode of an energy storage device according to a preferred embodiment of the present application.
- FIG. 5B is a schematic diagram of a working mode of the power supply mode of an energy storage device according to a preferred embodiment of the present application.
- FIG 7 and 8 are schematic diagrams of an energy storage device according to another preferred embodiment of the present application.
- Figure 9 is a schematic diagram of a charging method of an energy storage device according to a preferred embodiment of the present application.
- Figure 10 is a schematic diagram of a discharging method of an energy storage device according to a preferred embodiment of the present application.
- the present application provides an energy storage power supply.
- the energy storage power supply includes a built-in battery 10 and a transmitter 20 .
- the built-in battery 10 and the transmitter 20 are electrically connected. Current transmission is performed between the built-in battery 10 and the power transmitter 20 .
- the energy storage power supply also includes a housing 30 in which the built-in battery 10 and the power transmitter 20 are disposed.
- the built-in battery 10 and the transmitter 20 are electrically connected.
- the built-in battery 10 transmits current to the transmitter 20.
- the transmitter 20 can convert the current transmitted by the built-in battery 10 and then output the converted current to the load connected to the circuit to provide power to the load. .
- the power transmitter 20 acquires current, converts the current into a current suitable for charging the built-in battery 10 , and delivers the current to the built-in battery 10 . That is, the built-in battery 10 can be discharged by the power supply 20 or charged by the power supply 20 .
- the power transmitter 20 includes an input interface 21 , an inverter 22 and an output interface 23 .
- the input interface 21 and the output interface 23 are respectively provided on the housing 30 and are suitable for user contact and use.
- the inverter 22 is installed in the housing 30 .
- the input interface 21 is suitable for connecting to an external power supply to obtain power.
- the inverter 22 circuit is connected to the input interface 21 and performs conversion processing on the current input by the input interface 21 .
- the output interface 23 circuit is connected to the inverter 22 and outputs the current delivered by the inverter 22.
- the output interface 23 outputs current to the outside of the energy storage power supply.
- the load is connected to the output interface 23, and the output interface 23 delivers current to the load.
- the circuit of the built-in battery 10 is connected to the inverter 22 , and obtains current for charging through the inverter 22 , or discharges through the current conversion part inverter 22 to output through the output interface 23 .
- the input interface 21 obtains power from an external power source, and the inverter 22 converts the power into a first charging current.
- the first charging current is delivered to the built-in battery 10 to charge the built-in battery 10 .
- the built-in battery 10 After the built-in battery 10 stores electricity, it can be used as a power source for the energy storage power supply to power loads connected to the energy storage power supply.
- the built-in battery 10 is discharged to provide power to the load.
- the inverter 22 can discharge the first The current undergoes corresponding current transformation, converting the first discharge current into a discharge current that meets the power demand of the load, and delivers it to the load.
- Current conversion includes AC current-DC current rectification, DC current-AC current inversion and DC current-DC current conversion. It can also include bidirectional AC current-DC current, DC current-DC current conversion, or bidirectional inverter current conversion. processing functions.
- the input interface 21 can be connected to an external power supply, such as mains power, solar energy devices, other energy storage power sources, and other objects that provide power.
- the input interface 21 can obtain AC current or DC current.
- the energy storage power supply can also discharge loads connected to the energy storage power supply.
- the load and the output interface 23 are electrically connected, and the output interface 23 outputs current to the load.
- the current output by the output interface 23 can come from the power of the external power supply obtained by the input interface, or can also come from the built-in battery 10 and the battery pack 40 .
- the built-in battery 10 can power the load alone, or the built-in battery 10 and the battery pack 40 can power the load together.
- the load and the energy storage power supply After the load and the energy storage power supply successfully identify each other, it is determined that the load and the energy storage power supply can be connected, and the load and the energy storage power supply are connected. Or, after the load is turned on through a physical switch, and after the load and the energy storage power supply successfully identify each other, the load and the energy storage power supply are connected. That is, the load is identified as an object that can be powered by the energy storage power supply, the load and the energy storage power supply are electrically connected, and the energy storage power supply can discharge the load to the load. It is understandable that a physical switch can also be set on the energy storage power supply to turn on the energy storage power supply, so that the energy storage power supply and the load can identify each other.
- the output interface 23 outputs the discharge current, and further, the output interface 23 is provided with an output interface.
- the output interface may include an AC output interface, a DC output interface, or a cigarette lighter.
- the AC output interface can be used to connect AC loads, and the DC output interface can be used to connect DC loads. That is, the output interface 23 can output AC discharge current or DC discharge current.
- the load can include AC electrical equipment and DC electrical equipment, and AC discharge current and DC discharge current are obtained through the energy storage power supply.
- the energy storage device includes the above-mentioned energy storage power source and battery pack 40.
- the number of battery packs 40 may be one, two, or more than two.
- the battery pack 40 is detachably mounted on the housing 30 . When the battery pack 40 is installed to the housing 40, the battery pack 40 is electrically connected to the electrical circuit of the energy storage device.
- the battery pack 40 is connected to the energy storage power supply, and can be charged through the energy storage power supply, or can be used as a power source to discharge through the energy storage power supply, thereby expanding the capacity of the energy storage power supply and extending the discharge time of the energy storage power supply.
- the connection method between the battery pack 40 and the energy storage power supply may be a cordless coupling connection, a wireless connection and/or a corded connection.
- the battery pack 40 is cordlessly coupled to the energy storage power source.
- the housing 30 is provided with an interface suitable for electrical connection with the battery pack 40 .
- the interface is implemented as an interface suitable for cordless coupling connection; the interface is implemented as a wireless charging interface; and the interface is implemented as a corded connection interface.
- the interface is implemented as a cordless coupling port, so that the battery pack 40 is electrically connected to the circuit of the energy storage power source by a cordless coupling.
- the battery pack 40 is at least partially or entirely accommodated in the housing 30 .
- the battery pack 40 is disposed outside the housing 30 , such as on the top of the housing 30 .
- the battery pack 40 is provided on the outer peripheral surface of the housing 30 .
- the battery pack 40 is also provided with a power transmission interface, which can output the power stored in the battery pack 40 to the outside.
- the power transmission interface transmits DC current.
- the power transmission interface is at least partially blocked to be in a disabled state.
- the power transmission interface is disabled.
- the battery pack 40 can independently release current to provide power to loads that can use the battery pack 40 to obtain power.
- the battery pack 40 When the battery pack 40 is separated from the adapted load and is installed in an energy storage power source for charging, it can be exchanged for another battery pack 40 from the energy storage device to continue supplying power to the adapted load.
- the battery pack 40 is inserted into the energy storage power supply and is conductively connected to the energy storage power supply. Further, the battery pack 40 and the built-in battery 10 are conductively connected, and/or the battery pack 40 and the power transmitter 20 are conductively connected.
- the housing of the energy storage power supply is equipped with a mounting portion, and the built-in battery 10 and the inverter 22 are respectively installed in the housing without interfering with the mounting portion.
- the installation part includes an interface that does not interfere with the built-in battery 10 and the inverter 22 .
- the battery pack 40 is freely detachable and connected to the installation part.
- the battery pack 40 includes a power output port, which is suitable for mechanical and electrical connection with the interface. That is, the battery pack 40 forms a mechanical connection and an electrical connection with the energy storage power source through the connection of the power output port and the interface.
- the housing 30 is provided with at least one cavity 301 , and the cavity 301 is suitable for installing the battery pack 40 .
- An interface is provided in the cavity 301, and the interface is suitable for connecting to the battery pack 40.
- the interface is suitable for conductively connecting with the battery pack 40, and performing current transmission between the battery pack 40 and the energy storage power supply. Further, the interface is connected to the circuit of the energy storage power supply, and the battery pack 40 is connected to the circuit of the energy storage power supply through the interface, and is conductively connected to the circuit of the energy storage power supply.
- the battery pack 40 is provided with a power output port, and the power output port and the interface are conductively connected.
- the battery pack 40 can obtain power from the energy storage power source through the power output port to be charged by the energy storage power source; the battery pack 40 can also discharge to the energy storage power source and serve as an expansion device for the energy storage power source to expand the capacity of the energy storage power source and extend the storage time. The discharge time of the energy source.
- the cavity 301 is adapted to receive the battery pack 40 so that the battery pack 40 is received in the housing 30 .
- the housing 30 has an outer surface 302, and the cavity 301 extends inwardly from a portion of the outer surface 302.
- the cavity 301 is provided next to the built-in battery 10 and close to the built-in battery 10 , and the opening of the cavity 301 is located on the surface of the housing 30 .
- the volume 301 is sized to accommodate the battery pack 40 .
- the battery pack 40 has an outer peripheral surface 41. After the battery pack 40 is received in the cavity 301, at least part of the outer peripheral surface 41 of the battery pack 40 is blocked by the cavity 301.
- the battery pack 40 and the energy storage power source perform mutual identity recognition, such as performing handshake communication. After the handshake communication is successfully performed, the battery pack 40 circuit is connected to the circuit of the energy storage power source.
- the battery pack 40 After the battery pack 40 is connected to the energy storage power supply circuit, it can be charged through the energy storage power supply. Battery pack 40 and energy storage power supply The circuits are connected through charging branch circuits. The energy storage power source releases the second charging current to the battery pack 40 through the charging branch.
- the battery pack 40 When the battery pack 40 is configured in an energy storage power source, it has at least two different operating states. Among them, the first operating state is: the battery pack 40 is charged by the power from one end of the energy storage power supply through the mechanical and electrical connection between the power output port and the interface; the second operating state is: the battery pack 40 is charged through the mechanical and electrical connection between the power output port and the interface.
- the electrical connection and the built-in battery are respectively coupled to the inverter 22, and then output AC current through the output interface 23.
- the battery pack 40 In the first operating state, the battery pack 40 is charged by the energy storage power supply; in the second operating state, the battery pack 40 is discharged and current is output through the energy storage power supply.
- the energy storage power supply is equipped with an inverter 22, which can convert the DC current output by the battery pack 40 into AC current and output it through the output interface 23.
- the battery pack 40 includes at least two charging modes.
- the first charging method is: when the input interface 21 is connected to the external power supply for charging, the battery pack 40 receives power from the external power supply for charging through the mechanical and electrical connection between the power output port and the interface;
- the second charging method is: when the input interface 21 is not connected
- the battery pack 40 receives power from the built-in battery 10 for charging through the mechanical and electrical connection between the power output port and the interface.
- one of the battery pack 40 and the built-in battery 10 receives power first and is charged.
- the other one receives power and is charged.
- the battery pack 40 can be selectively coupled to the inverter to enter the second operating state.
- the energy storage device also includes a control key configured to selectively control whether the battery pack is coupled to the inverter 22 .
- the built-in battery 10 is suitable for supplying power to the battery pack 40 and the inverter 22 at the same time for charging the battery pack 40 and inverting the output of the inverter 22. AC current.
- the battery pack 40 When the battery pack 40 is controlled to be coupled to the inverter 22 through the control key, the battery pack 40 is suitable for supplying and outputting electric power to the inverter 22 for the inverter 22 to invert and output AC current.
- the built-in battery 10 gives priority to output power for the inverter to output AC current.
- the battery pack 40 is switched to output power. For the inverter 22 to output AC current.
- the battery pack 40 and the internal battery 10 are rated at the same voltage to be suitable for coupling to the inverter 22 .
- the energy storage device has multiple working modes, including but not limited to charging mode, power supply mode, multi-function mode, etc.
- the energy storage device determines the working mode in which it works based on the power demand.
- the energy storage device When the energy storage device works in charging mode to charge the built-in battery 10 and/or battery pack 40, at this time, the energy storage device only releases charging current to the built-in battery 10 and/or battery pack 40; when the energy storage device works in power supply mode , to supply power to the connected load. At this time, the energy storage device only releases the discharge current to the connected load; when the energy storage device works in the multi-function mode, the energy storage device can charge the built-in battery 10 and/or the battery pack 40, and, Supplying power to connected loads, i.e. energy storage devices simultaneously Charging and powering, releasing charging current and discharging current.
- the built-in battery 10 when the energy storage device works in the charging mode, the built-in battery 10, the battery pack 40 and/or the built-in battery 10 and the battery pack 4 can be charged according to the actual situation. If the power of the built-in battery 10 is insufficient, the first charging current can be sent to the built-in battery 10 to charge the built-in battery 10; if the circuit of the battery pack 40 is connected to the circuit of the energy storage power source to request charging, the second charging current can be sent to the battery pack 40. , charging the battery pack 40; if the power of the built-in battery 10 is insufficient, and there is a battery pack 40 requesting charging at the same time, the built-in battery 10 and the battery pack 40 are charged.
- the energy storage device When the energy storage device works in power supply mode, it can release corresponding discharge current according to the power demand of the connected load to power the load. That is, when the power demand is to supply power to the load, the energy storage device works in the power supply mode.
- the energy storage device When the energy storage device works in the multi-function mode, it can release charging current and discharging current at the same time to charge the built-in battery 10 and/or the battery pack 40 respectively, and to supply power to the load.
- the energy storage device When it is detected that the circuit of the battery pack 40 is connected to the circuit of the energy storage device and requests charging, the energy storage device operates in the charging mode; if it is further detected that the load is connected to the energy storage device and requests power supply, the energy storage device switches to the multi-function mode. When there is only a load connected to the energy storage device requesting power supply, the energy storage device switches to the power supply mode.
- the power sources of charging current and/or discharging current in different working modes are determined according to different states of the energy storage device.
- the energy storage device is defined to have a powered state and an unpowered state.
- the energy storage device is connected to an external power supply and obtains power from the external power supply, the energy storage device is in the powered state; when the energy storage device is not connected to the external power supply and does not obtain power from outside the energy storage device, the energy storage device is in the unpowered state. power status.
- the charging current and/or the discharging current preferably come from an external power source, and optionally from the built-in battery 10 and/or the battery pack 40 .
- the energy storage device can work in charging mode, power supply mode and/or multi-function mode.
- the external power supply is first used to convert the first charging current, the second charging current and/or the discharging current to supply power to the built-in battery 10, the battery pack 40 and/or the load.
- the charging current and/or the discharging current optionally come from the built-in battery 10 and/or the battery pack 40 .
- the energy storage device can work in charging mode, power supply mode and/or multi-function mode.
- the built-in battery 10 can be discharged and converted into a second charging current and/or a discharging current to charge the battery pack 40 and/or provide power to the load.
- the battery pack 40 can be discharged and converted into discharge current to provide power to the load.
- the battery pack 40 can be discharged by the energy storage device, serve as a power source for the discharge current of the energy storage device, and output discharge in parallel with the built-in battery 10 to extend the discharge time of the energy storage device, and/or increase the discharge power of the energy storage device.
- the battery pack 40 is in the first operating state after being configured in the energy storage power supply is described, that is, the battery pack 40 is charged by the power from one end of the energy storage power supply through the mechanical and electrical connection between the power output port and the interface.
- the energy storage device charges the built-in battery 10 and the battery pack 40 .
- the built-in battery 10 is charged.
- both the built-in battery 10 and the battery pack 40 need to be charged, charging is performed according to the preset charging priorities of the built-in battery 10 and the battery pack 40 .
- the charging priorities of the built-in battery 10 and the battery pack 40 are: the battery pack 40 is charged prior to the built-in battery 10 .
- the battery pack 40 circuit is connected to the energy storage device and requests charging, the battery pack 40 is charged; when both the built-in battery 10 and the battery pack 40 need to be charged, the battery pack 40 is charged first. After completing the charging of the battery pack 40, the built-in battery 10 is charged.
- the built-in battery 10 needs to be charged; it is detected whether there is a battery pack 40 requesting charging. If it is detected that the built-in battery 10 needs to be charged and there is a battery pack 40 requesting charging, the second charging current will be released to the battery pack 40 first. Check whether the battery pack 40 is fully charged. If the battery pack 40 is fully charged, it stops releasing the second charging current and instead releases the first charging current to the built-in battery 10 to charge the built-in battery 10 .
- detecting whether the built-in battery 10 and the battery pack 40 need to be charged it is detected that the power of the built-in battery 10 is lower than the first charging threshold, and it is determined that the built-in battery 10 needs to be charged; it is detected that the power of the battery pack 40 is low. At the second charging threshold, it is determined that the battery pack 40 needs to be charged. In another embodiment, when the power of the built-in battery 10 does not reach the rated capacity value, it is determined that the built-in battery 10 needs to be charged.
- the built-in battery 10 needs to be charged; when the battery pack 40 If the power of the battery pack does not reach the rated capacity value, it is determined that the battery pack 40 needs to be charged. That is, it is detected that the power of the battery pack 40 is not full, and it is determined that the battery pack 40 needs to be charged.
- the method of charging two or more battery packs 40 is explained, that is, the method of setting the charging sequence of the battery packs.
- the one with the lower voltage among two or more battery packs 40 is charged first, until the one with the lower voltage is fully charged, and then the one with the lower voltage among the remaining battery packs 40 is charged until the person requesting charging.
- Charging of two or more battery packs 40 is completed; in one example, the one with higher voltage among the two or more battery packs 40 is charged first, until the one with higher voltage is fully charged, then the remaining ones are continued to be charged.
- the battery pack 40 with the higher voltage is charged until the charging of the two or more battery packs 40 requested for charging is completed; in one example, the battery pack 40 with the lower voltage among the two or more battery packs 40 is charged first.
- the built-in battery 10 is charged first, and after the charging of the built-in battery 10 is completed, the battery pack 40 is charged. In other examples of this application, the built-in battery 10 and the battery pack 40 are charged simultaneously.
- charging is performed according to a preset charging sequence of the built-in battery 10 and the battery pack 40 .
- the one with the lower voltage of the built-in battery 10 or the battery pack 40 is charged first. After the charging is completed, the remaining built-in batteries 10 and/or the battery pack 40 with the lower voltage continue to be charged according to the voltage. Charge until both the built-in battery 10 and the battery pack 40 are fully charged. In other words, priority is given to charging the one with a longer initial expected charging time.
- the one with the higher voltage of the built-in battery 10 and the battery pack 40 is charged first. After the charging is completed, the remaining built-in batteries 10 and/or the battery pack 40 with the higher voltage continue to be charged until the built-in battery 10 and 40 battery packs are charged. In other words, priority is given to charging those with a shorter expected charging time.
- the built-in battery 10 and the battery pack 40 with the lower voltage are first charged until the voltages of the built-in battery 10 and the battery pack 20 that are requested to be charged are the same, and the built-in battery 10 and the battery pack 40 are charged at the same time until the Finish. Or, the one with the longer real-time expected charging time is given priority to be charged, and until the real-time expected charging time is consistent, the built-in battery 10 and the battery pack 40 are charged at the same time.
- the built-in battery 10 and the battery pack 40 are charged alternately until the built-in battery 10 and the battery pack 40 are completely charged.
- the charging completion referred to in this application includes the voltage reaching the rated voltage of the device, that is, the situation of being fully charged.
- the voltage of the built-in battery 10 reaches its rated voltage, or the built-in battery 10 is fully charged; the voltage of the battery pack 40 reaches Its own rated voltage, or that the battery pack 40 is fully charged; it also includes the situation when the object to be charged and the energy storage device are disconnected from the circuit, for example, when charging, the battery pack 40 is disconnected from the energy storage device.
- the energy storage device when there are both the built-in battery 10 and the battery pack 40 that need to be charged, the energy storage device is preferably in a powered state, or switches from an unpowered state to a powered state, connects to an external power supply, and connects to an external power source from the energy storage device. Obtain power for charging the built-in battery 10 and the battery pack 40.
- the battery pack 40 when the energy storage device is in an unpowered state, the battery pack 40 can be used to charge the built-in battery 10 and the battery pack 40 that needs to be charged; the built-in battery 10 can be used to charge the battery pack 40 .
- the energy storage device when the energy storage device operates in the multi-function mode, it releases discharging current and charging current to supply power to the load and charge the built-in battery 10 and/or the battery pack 40 respectively.
- the energy storage device when the energy storage device operates in the multi-function mode in the powered state, it prioritizes converting the power from the external power supply into charging current and discharging current.
- the transmitter 20 obtains power from an external power source through the input interface 21, converts it into charging current and discharging current by the inverter 22, and simultaneously supplies power to the built-in battery 10 and/or battery pack 40, as well as the load.
- the power stored in the built-in battery 10 is The force is converted into a second charging current and a discharging current to charge the battery pack 40 and power the load.
- the battery pack 40 and the built-in battery 10 are connected in parallel for the inverter 22 to use the power of the battery pack 40 to convert the power into charging current and discharging current, wherein the power of the battery pack 40 can be converted into the first
- the charging current can reversely charge the built-in battery 10, or it can be converted into a second charging current to charge other battery packs 40 that request charging, or it can be converted into a discharge current to supply power to the load.
- control key is used to control whether the battery pack 40 is coupled to the inverter 22 to control whether the battery pack 40 is discharged through the energy storage power source.
- the energy storage device when the energy storage device only supplies power to the load, it operates in the power supply mode. Further elaborate on the method of providing discharge current in power supply mode.
- the energy storage device when the energy storage device operates in the power supply mode in the powered state, it is preferable to convert the external power supply into a discharge current to supply power to the load.
- the inverter 22 converts the power obtained by the input interface 21 into a discharge current, and transmits it to the load connected to the circuit through the output interface 23 to provide power to the load.
- the energy storage device when the energy storage device operates in the power supply mode without receiving power, it converts the power stored in the built-in battery 10 into a discharge current to supply power to the load.
- the inverter 22 converts the power of the built-in battery 10 into a discharge current, and transmits it to the load connected to the circuit through the output interface 23 to provide power to the load.
- the battery pack 40 and the built-in battery 10 can be connected in parallel to release the discharge current to power the load.
- the inverter 22 converts the power of the battery pack 40 into a discharge current and transmits it to the load connected to the circuit through the output interface 23 to provide power to the load.
- control key is used to control whether the battery pack 40 is coupled to the inverter 22.
- the control key is used to control that the battery pack 40 is not coupled to the inverter 22, the built-in battery 10 supplies power and outputs power to the load; when the control key is used to control the battery pack 40 to not be coupled to the inverter 22, By controlling the battery pack 40 to be coupled to the inverter 22, the battery pack 40 is suitable for supplying and outputting electric power to power the load.
- the energy storage device is in the second operating state.
- the inverter 22 can convert the power into AC current and output it to the AC load.
- the built-in battery 10 gives priority to output power.
- the battery pack 40 is switched to output power.
- the battery pack 40 and the built-in battery 10 are connected in parallel.
- the concurrent connection in this application means that the battery pack 40 can be discharged through the energy storage device in reverse, and together with the built-in battery 10, can be used as the power supply source of the energy storage device to supply power to the load connected to the energy storage device. Under certain circumstances, , the battery pack 40 can also be discharged in reverse direction to charge the built-in battery 10 .
- the parallel connection signal is triggered, and the battery pack 40 and the built-in battery 10 are connected in parallel and output to provide discharge current to power the load; in one implementation, when the energy storage device is installed with the battery pack 40 and there is a connection between the load and the energy storage device, the parallel connection signal is triggered, and the battery pack 40 is parallelly connected to the built-in battery 10 to supply power to the load.
- the energy storage power supply has a parallel control key, and the parallel control key controls whether the battery pack 40 is parallel to the built-in battery 10 .
- the parallel capacity control key is connected to the interface to be conductively connected to the battery pack 40, thereby controlling whether the battery pack 40 is available for parallel capacity to release the discharge current.
- the user operates the parallel control key to select whether the battery pack 40 is parallel to the built-in battery 10, so that the user can freely choose according to needs.
- a parallel connection signal is sent to control the parallel connection of the corresponding battery pack 40 selected by the user and the built-in battery 10 .
- a parallel capacity control key is set to control whether the battery pack 40 is parallel to the built-in battery 10; optionally, two or more parallel capacity control keys are set to control two or more battery packs respectively.
- 40 is connected to the built-in battery 10 in parallel, that is, each battery pack 40 is configured with a corresponding parallel control key.
- the corresponding parallel control key can be connected to the interface to connect to the corresponding battery pack 40 to control whether the corresponding parallel control key is connected to the built-in battery 10.
- the battery pack 40 and the built-in battery 10 are compatible.
- the parallel control key is implemented as a switch operation button and has a selected state and a non-selected state.
- the battery pack 40 corresponding to the combined control key can be compatible with the built-in battery 10.
- the battery pack 40 corresponding to the parallel control key can be compatible with the built-in battery 10. In this state, the battery pack 40 corresponding to the parallel control key cannot be compatible with the built-in battery 10 .
- a parallel capacity control key is provided on the battery pack 40 to correspondingly control whether the battery pack 40 is parallel.
- a parallel capacity control key is provided on the energy storage device to control whether the battery pack 40 is parallel. Allow.
- the integration control key is implemented as a screen, and the user selects whether to integrate the battery pack 40 with the built-in battery 10 through screen operations, and selects the battery pack 40 that is compatible with the built-in battery 10 .
- the built-in battery 10 is first discharged.
- the battery pack 40 is discharged to continue to provide discharge current to the load.
- the discharge current of the battery packs 40 will be released one by one after the built-in battery 10 is discharged.
- the discharge of the built-in battery 10 is defined as: the built-in battery 10 is discharged until the voltage is zero; optionally, the discharge of the built-in battery 10 is completed as: the built-in battery 10 is discharged until the voltage is lower than the preset first Low voltage threshold. At this time, the built-in battery 10 enters the low-voltage protection state and is prohibited from discharging. That is, the built-in battery 10 has a low-voltage protection mechanism to prevent the voltage of the built-in battery 10 from being too low and affecting normal use.
- the battery pack 40 is set with a second low voltage threshold.
- the battery pack 40 When the battery pack 40 is discharged to a voltage lower than the second low voltage threshold, the battery pack 40 completes discharge, stops discharging, and enters the low voltage protection state.
- the conditions for the battery pack 40 to be compatible with the built-in battery 10 are set, so that the battery pack 40 can be selectively connected to the built-in battery 10 based on whether the conditions for parallel connection are met.
- the voltage of the battery pack 40 is higher than the battery pack discharge threshold and can be selectively connected to the built-in battery 10 .
- the battery pack 40 can be selected and Built-in battery 10 and easy to connect. Wherein, the battery pack discharge threshold is higher than the second low voltage threshold of the battery pack.
- the built-in battery 10 serves as the main power source of the energy storage device and releases discharge current to power the load.
- the battery pack 40 can be used as a supplementary power source for the energy storage device and is connected concurrently with the built-in battery 10 to power the load. Therefore, by giving priority to the built-in battery 10 to release the discharge current, the battery pack 40 can release the discharge current from the parallel battery pack 40 to continue supplying power to the load when the power of the built-in battery 10 is insufficient to meet the power demand of the load. In addition, prioritizing the power release of the built-in battery 10 can reduce or avoid consuming the power of the battery pack 40 when the built-in battery 10 is sufficient to meet the power demand of the load.
- the parallel output mode after the battery pack 40 and the built-in battery 10 are connected in parallel is implemented as follows: sequential discharge according to a preset discharge sequence.
- the preset discharge sequence is implemented as follows: sequentially controlling the discharge of the battery pack 40 and the built-in battery 10 in the order of voltage from high to low; in one embodiment, the preset discharge sequence is implemented as : Control the discharge of the battery pack 40 and the built-in battery 10 in sequence from low to high voltage.
- the timing of switching the discharge objects in sequence is implemented as the built-in battery 10 and/or the battery pack 40 is discharged until the voltage is zero; optionally, the timing of switching the discharge objects in sequence is implemented as the built-in battery 10 is discharged to The voltage is lower than the first low voltage threshold, and/or the battery pack 40 is discharged to a voltage lower than the second low voltage threshold.
- the parallel output mode after the battery pack 40 and the built-in battery 10 are connected in parallel is implemented as follows: first, the one with the higher voltage of the built-in battery 10 and the battery pack 40 is discharged, and then the built-in battery 10 and the battery pack are discharged. After the voltage of the package 40 is equalized, it is discharged together.
- the power output port of the battery pack 40 is connected to the interface circuit of the energy storage device, that is, the circuit of the battery pack 40 is connected to the circuit of the energy storage device.
- the battery pack 40 can obtain power from the energy storage device through the circuit connection of the power output port and the interface to be charged.
- a second charging branch is provided between the interface and the input interface 21 , that is, the second charging current output by the interface originates from the power of the external power source obtained by the input interface 21 .
- the inverter 22 circuit is connected to the second charging branch between the interface and the input interface 21 to convert the power from the external power source obtained by the input interface 21 into the second charging current.
- a second charging branch is provided between the interface and the built-in battery 10 , that is, the second charging current output by the interface flows out from the built-in battery 10 .
- the built-in battery 10 is discharged and used as the second charging current to charge the battery pack 40 .
- the inverter 22 circuit is connected to the second charging branch between the interface and the built-in battery 10 to convert the power output by the built-in battery 10 into a second charging current.
- a second charging branch is provided between the built-in battery 10 and the interface, and the second charging current flows through the built-in battery 10 and then flows into the battery pack 40 .
- a first charging branch is provided between the input interface 21 and the built-in battery 10 so that the input interface 21 obtains power from an external power source and converts it into a first charging current by the inverter 22 to charge the built-in battery 10 .
- the energy storage device is configured with a charge and discharge control system 100.
- the charge and discharge control system 100 controls the charging and discharging of the energy storage device, including: a detection unit 101, an identification unit 102, a comparison unit 103, a charging unit 104 and a discharging unit 105.
- the detection unit 101 is circuit-connected to the circuit of the energy storage device, and detects the status of the circuit, each device connected to the circuit, and the information of each device.
- Each device includes a built-in battery 10, an input interface 21, a current converter 22, an output interface 23, a battery pack 40, a load, etc.
- the detection unit 101 detects and obtains electrical information of each device.
- the detection unit 101 detects the electrical information of the built-in battery 10, such as rated voltage, capacity, real-time voltage, etc.; detects the power status of the input interface 21, such as whether an external power supply is connected, the current type of power obtained, etc.; detects the connection status of the output interface 23 , for example, whether the output interface 23 is connected to a load. If the load is connected, the detection unit 101 further detects and obtains load information.
- the detection unit 101 continues to detect the circuit of the energy storage device and the status information of each device on the circuit.
- the detected unit 101 detects that the battery pack 40 is electrically connected to the energy storage device.
- the detection unit 101 further detects the electrical information of the battery pack 40, such as rated voltage, capacity, real-time voltage, etc.
- the identification unit 102 is communicatively connected to the detection unit 101, identifies the current status of each device, and determines the power supply source and power demand.
- the power supply source includes power from an external power source and the built-in battery 10, and may also include power from the battery pack 40, further including the type of external power source and electrical information of the built-in battery 10 (including but not limited to real-time voltage, rated voltage, etc.).
- the power demand is to supply power to the load, charge the built-in battery 10 and/or charge the battery pack 40, and further includes the electrical information of the load (including but not limited to power consumption type, power consumption, rated voltage, etc.), the power of the built-in battery 10 Electrical information, electrical information of the battery pack 40 (including but not limited to real-time voltage, rated voltage, etc.).
- the comparison unit 103 is communicatively connected to the identification unit 102, compares the power supply source and the power demand, determines the current type and power of the power supply, and the current type and power of the power consumption, and then outputs a charging control instruction and/or a discharging control instruction, which is controlled by the charging unit 104 And/or the discharge unit 105 executes the charging control instructions and/or the discharging control instructions.
- the charging unit 104 is communicatively connected to the comparison unit 103 to execute the charging control instructions issued by the comparison unit 103.
- the charging unit 104 is circuit-connected to the circuits and components of the energy storage device, controls the charging of the energy storage device, and converts the supplied charging current into The charging current that meets the power demand charges the corresponding battery pack 40 .
- the discharge unit 105 is communicatively connected to the comparison unit 103 to execute the discharge control instructions issued by the comparison unit 103,
- the discharge unit 105 circuit is connected to the circuits and components of the energy storage device, controls the discharge of the energy storage device, converts the discharge current released by power supply into a discharge current that meets the power demand, and discharges the corresponding load.
- the detection unit 101 detects that the battery pack 40 is electrically connected to the energy storage device.
- the detection unit 101 further detects and obtains the real-time power information of the battery pack 40 .
- the recognition unit 102 recognizes that the real-time voltage of the battery pack 40 has not reached the rated voltage, determines that the current power of the battery pack 40 is insufficient, and then recognizes that the power demand is to charge the battery pack 40 .
- the detection unit 101 detects the electrical information of the built-in battery 10 .
- the recognition unit 102 recognizes that the real-time voltage of the built-in battery 10 does not reach the rated voltage, and then recognizes that the power demand is to charge the built-in battery 10 .
- the detection unit 101 detects that the input interface 21 is connected to an external power supply and is in a powered state, and the identification unit 102 identifies the power supply source as the external power supply.
- the comparison unit 103 compares the power supply source and the power demand, and generates a charging control instruction as follows: charge the built-in battery 10 and the battery pack 40 with the power from the external power supply.
- the charging unit 104 executes the aforementioned charging control instructions.
- the power requirements for charging the built-in battery 10 and the battery pack 40 exist at the same time.
- the charging control instruction generated by the comparison unit 102 is: give priority to charging the battery pack 40, and after the charging of the battery pack 40 is completed, switch to charging the built-in battery 10. .
- the identification unit 102 identifies that the real-time voltages of the two or more battery packs 40 do not reach the rated voltage, the identification is The power demand is to charge two or more battery packs 40.
- the comparison unit 103 obtains the power demand of each battery pack 40, determines the charging method of each battery pack 40 that needs to be charged, and outputs it as a charging control instruction.
- the charging unit 104 executes charging control instructions to control the charging current for charging of each battery pack 40 .
- the comparison unit 103 controls the charging unit 104 to simultaneously charge each battery pack 40 that needs to be charged. That is, the charging control instruction of the comparison unit 103 is to charge each battery pack 40 whose power demand requires charging at the same time.
- the charging unit 104 controls the charging current to flow into the battery packs 40 along the charging branches connecting each battery pack 40, and simultaneously charges each battery pack 40 that needs to be charged.
- the comparison unit 103 compares the power demand of each battery pack 40, determines the charging priority of the battery pack 40, and charges each battery pack 40 in order according to the charging priority.
- Each battery pack 40 that needs to be charged is charged, and the charging control instructions include: completing charging for each battery pack 40 that needs to be charged in sequence according to the charging priority of the battery pack.
- the charging unit 104 controls the charging current to flow into the battery packs 40 in sequence according to the charging priority, and charges the battery packs 40 in sequence.
- the comparison unit 103 is preset with a battery pack charging priority, so as to generate corresponding charging control instructions according to the preset battery pack charging priority to charge two or more battery packs 40 .
- the battery pack 40 with more remaining power is charged first.
- the identification unit 102 identifies the real-time voltage of the battery pack 40, determines the remaining power, and sends it to the comparison unit 103.
- the comparison unit 103 compares the remaining power of the battery pack 40, and determines each battery pack that needs to be charged according to the remaining power of each battery pack 40.
- the charging priority is 40, and the output is the charging control command.
- the charging unit 104 executes the charging control instructions according to the battery pack charging optimization. Each battery pack 40 is charged first.
- the charging unit 104 controls the charging current to flow into the battery pack 40 preferentially along the charging branch of the battery pack 40 with the most remaining power, first completes the charging of the battery pack 40 with the greater remaining power, and then controls the charging current sequentially from most to least according to the remaining power.
- the remaining battery packs 40 are charged in order of priority.
- the charging of a battery pack 40 can be quickly completed, so that a fully charged battery pack 40 can be generated as soon as possible, which can be disassembled and used as a self-storage device.
- the battery pack 40 with lower remaining power is charged first.
- the identification unit 102 identifies the remaining power of the battery pack 40 that needs to be charged.
- the comparison unit 103 determines the charging priority of each battery pack 40 according to the remaining power, and sends a charging control instruction to the charging unit 40.
- the charging unit 40 controls the charging current to prioritize along the The charging branch of the battery pack 40 with the smallest remaining power flows into the battery pack 40 to complete charging, and then the remaining battery packs 40 are charged in order of priority from the smallest to the largest remaining power.
- Prioritizing charging of the battery pack 40 with the least remaining power can convert the battery pack 40 with the least power into a usable state as soon as possible, which is convenient for the user.
- the comparison unit 103 instructs the charging unit 104 to charge the battery packs 40 alternately.
- the comparison unit 103 is preset to discharge the charging current to the charging threshold of the battery pack 40 each time.
- the comparison unit 103 instructs the charging unit 104 to switch to charging another battery pack 40 after charging one battery pack 40 to the charging threshold, and to continue charging the other battery packs 40 alternately after reaching the charging threshold.
- the charging threshold is implemented as a single charge time or a single charge amount.
- the built-in battery 10 is charged first and the battery pack 40 is charged later.
- the built-in battery 10 and the battery pack 40 are charged in the order of voltage from high to low; in other examples, the built-in battery 10 and the battery pack 40 are charged in the order of voltage from low to high; in other examples , charging the built-in battery 10 and the battery pack 40 at the same time; in other examples, charging the built-in battery 10 and the battery pack 40 alternately.
- the detection unit 101 detects that the input interface 21 is not connected to an external power supply, and the identification unit 102 identifies that the voltage of the built-in battery 10 is not zero and there is remaining power, and further identifies that the power supply source is the built-in battery 10 .
- the comparison unit 103 compares the power supply source and the power demand, and generates a charging control instruction as follows: the built-in battery 10 charges the battery pack 40 .
- the charging unit 104 receives the charging control command and controls the built-in battery 10 to release charging current to the battery pack 40 .
- the detection unit 101 detects that the battery pack 40 is connected to the energy storage device and its electrical information, and the identification unit 102 identifies the real-time voltage and the rated voltage of the battery pack 40. If the identification unit 102 identifies that the real-time voltage does not reach the rated voltage, That is, the power demand is identified to charge the battery pack 40 .
- the detection unit 101 detects that the battery pack 40 is connected to the energy storage device, it is not detected that the load is connected to the energy storage device.
- the recognition unit 102 recognizes that the real-time voltage of the battery pack 40 has not reached the rated voltage, and then recognizes that the power demand is to charge the battery pack 40 .
- the detection unit 101 detects that the battery pack 40 is connected to the energy storage device and detects that a load is connected to the energy storage device.
- the recognition unit 102 recognizes that the real-time voltage of the battery pack 40 does not reach the rated voltage, and then recognizes that the power demand is The battery pack 40 charges and powers the load.
- the identification unit 102 identifies the power supply source and transmits the power supply source and power demand to the comparison unit 103.
- the comparison unit 103 compares the power supply source and the power demand.
- the comparison unit 103 issues a charging control instruction and a discharging control instruction, and controls the charging unit 104 and the discharging unit 105 to release the charging current and the charging current to the battery pack 40 respectively. Discharges discharge current to the load.
- the identification unit 102 identifies the power supply source of the external power supply, and the comparison unit 103 compares the external power supply source and power demand. If the external power supply can meet the charging demand of the battery pack 40 and the power demand of the load, it issues a charging control instruction and discharge.
- the control instructions control the charging unit 104 and the discharging unit 105 to respectively release the charging current to the battery pack 40 and the discharging current to the load.
- the comparison unit 103 compares the power of the built-in battery 10 with the power demand of the battery pack 40 and the load. If it is sufficient, the charging unit 104 controls the built-in battery 10 to release the charge. current to the battery pack 40, releasing the discharge current to the load. If it cannot be satisfied, choose to release the discharge current or release the charging current first.
- the built-in battery 10 is controlled with priority to release the discharge current to the load to supply power to the load and meet the user's demand for using the load.
- the identification unit 102 identifies the type of the external power supply and outputs the power supply source to the comparison unit 103.
- the comparison unit 103 compares the power supply source and power demand to determine the current transmission path and whether current conversion is required. Process and output the charging control command to the charging unit 104 .
- the charging unit 104 executes the charging control command and controls the current to flow from the input interface 21 to the inverter 22. If current conversion processing is required, the inverter 22 is controlled to convert the current, and then outputs a charging current that meets the power demand to provide the battery pack 40 Charge.
- the detection unit 101 continues to detect the real-time electrical information of the battery pack 40.
- the detection unit 101 detects that the real-time voltage of the battery pack 40 reaches the rated voltage, it sends a charging completion signal to the charging unit 104, and the charging unit 104 stops charging the corresponding battery pack 40.
- the charging unit 104 continues to alternately release the charging current for a single charging time for the remaining battery packs 40 until the detection unit 101 detects that the real-time voltage of each battery pack 40 that needs to be charged reaches the rated voltage and feeds it back to the charging unit 104. 104 stops charging current from flowing into the battery pack 40 .
- the detection unit 101 detects that the real-time voltage of the battery pack 40 reaches the preset value, that is, it sends a charging completion signal to the charging unit 104.
- the charging unit 104 stops charging the battery pack 40 whose voltage reaches the preset value, and continues to alternately charge the remaining battery packs.
- the battery pack 40 that needs to be charged is charged until the real-time voltage of the battery pack 40 that needs to be charged reaches the preset value, and charging is completed.
- the battery pack 40 that needs to be charged is manually controlled to be connected to the energy storage device, and then the battery pack 40 is charged.
- Battery pack 40 A physical switch is provided to control the opening and closing of the battery pack 40 . The user manually operates the physical switch to turn on the battery pack 40 so that the battery pack 40 can be connected to the energy storage device, and then the battery pack 40 can be charged. The user can manually open the battery pack 40 that he wants to charge according to his needs, so that the battery pack 40 can be charged.
- the load After the load is connected to the energy storage device and the identity information of the energy storage device is successfully recognized, the load and the energy storage device are connected, and the load sends a power request to the energy storage device.
- the energy storage device is started, and the detection unit 101 detects the circuit of the energy storage device and each device connected to the circuit.
- the load is connected to the output interface 23, and the detection unit 101 detects that there is a circuit in which the load is connected to the energy storage device.
- the detection unit 101 further obtains the power request issued by the load and detects the information of the load.
- the identification unit 102 identifies the power supply source and power demand according to the detection situation of the detection unit 101 .
- the detection unit 101 detects that the input interface 21 is connected to an external power supply, the output interface 23 is connected to a load, and detects load information.
- the identification unit 102 identifies the power supply source as the input interface 21 and identifies the use of the load based on the load information. electricity demand.
- the comparison unit 103 compares the power supply source and the power demand, determines the current input by the power supply and the current required for discharge, and outputs a discharge control instruction.
- the discharge unit 105 executes the discharge control instruction and controls the discharge current from the power supply source to the load. If the discharge current is required Current conversion processing can perform desired current conversion processing and release the discharge current that meets the power demand to the load.
- the discharge unit 105 controls the current from the input interface 21 to flow into the inverter 22. If current conversion processing is required, the circuit is converted accordingly. After that, the inverter 22 outputs the discharge current and delivers it to the load through the output interface 23, which is the load. powered by. That is, the current obtained from the input interface 21 is processed by the inverter 22 and becomes a discharge current that meets the power demand of the load, and is delivered to the load through the output interface 23 .
- the detection unit 101 detects that the input interface 21 is not connected to an external power supply, the built-in battery 10 stores power, and detects load information, and the identification unit 102 identifies that the power supply source is the built-in battery 10 and the discharge power of the built-in battery 10 , the power demand is the load power consumption and the load power demand power.
- the comparison unit 103 compares the discharge power of the built-in battery 10 with the power demand of the load, and determines the discharge path and whether current conversion processing is required. If the discharge power of the built-in battery 10 is sufficient to meet the power demand of the load, the discharge unit 105 controls the built-in battery 10 The discharge current is released and flows through the inverter 22. If current conversion processing is required, the inverter 22 is controlled to perform corresponding current conversion processing, and the discharge current that meets the power demand is output to the output interface 23, and is transmitted to the load from the output interface 23. , powering the load.
- the battery pack 40 and the built-in battery 10 can be used to discharge together according to the situation.
- the battery pack 40 is used to expand the capacity of the energy storage device to meet higher power demand.
- the detection unit 101 detects the load connection, the identified unit 102 identifies the power supply requirement of the load, and the detection unit 101 detects that the energy storage device is not connected to an external power supply, and the power supply source of the identification unit 102 is the built-in battery 10 . If the detection unit 101 detects that the battery pack 40 is connected, the identification unit 102 identifies that the battery pack 40 can be used as a power supply source. Compare The comparison unit 103 compares the power supply source and the power demand, and generates a discharge control instruction as follows: the built-in battery 10 and the battery pack 40 are connected in parallel.
- the parallel connection method of the built-in battery 10 and the battery pack 40 is implemented by: responding to the load's power request and the access of the battery pack 40, that is, implementing the parallel connection of the built-in battery 10 and the battery pack 40; or, responding to parallel control
- the operation of the key implements the parallel connection between the selected battery pack 40 and the built-in battery 10; or when the voltage of the built-in battery 10 is lower than the first low voltage threshold, the parallel connection between the battery pack 40 and the built-in battery 10 is implemented.
- the discharge control command includes a parallel output mode of the built-in battery 10 and the battery pack 40 .
- the parallel output method is: first, the built-in battery 10 is discharged, and after the built-in battery 10 is completely discharged, it is switched to the parallel-connected battery pack 40 to discharge.
- the voltage of the built-in battery 10 is zero or the voltage of the built-in battery 10 is lower than the first low voltage threshold.
- the parallel output method is: first, the one with a higher voltage among the built-in battery 10 and the battery pack 40 is discharged. After the voltages of the built-in battery 10 and the battery pack 40 are equalized, the built-in battery 10 and the battery pack 40 are discharged together.
- the identification unit 102 identifies two or more battery packs 40 as power supply sources, which can be compatible with the built-in battery 10.
- the discharge control instructions generated by the comparison unit 103 further include: after switching to the battery pack 40 for discharge, follow the preset battery The pack discharge sequence controls the discharge of two or more battery packs 40 .
- the battery pack discharge sequence is preset as follows: each battery pack 40 is controlled and discharged sequentially according to the discharge sequence from high voltage to low voltage.
- the battery pack discharge sequence is preset such that each battery pack 40 is controlled and discharged sequentially according to the discharge sequence from low voltage to high voltage.
- the battery pack discharge sequence is preset as follows: first, the battery pack 40 with a higher voltage is discharged, and then the battery pack 40 with a lower voltage is equalized in voltage, and then the battery packs are discharged together until each The voltages of the battery packs 40 are balanced and discharged together.
- the detection unit 101 detects that the input interface 21 is not connected to an external power supply, the built-in battery 10 stores power, and detects that the battery pack 40 is electrically connected to the circuit of the energy storage device.
- the identification unit 102 identifies that the power supply source can be selected from the built-in battery 10 and / or battery pack 40.
- the identification unit 102 identifies the power demand of the load based on the load information detected by the detection unit 101 , and identifies the discharge power of the built-in battery 10 and the battery pack 40 .
- the comparison unit 103 determines the power supply object and the discharge path according to the power demand of the load and the power supply of the built-in battery 10 and the battery pack 40 , and whether current conversion processing is required to output the discharge control instruction to the discharge unit 105 .
- the identification unit 102 identifies the power demand of the load according to the load information detected and obtained by the detection unit 101, including the power demand and the type of power current.
- the identification unit 102 detects the acquired built-in battery 10 and the battery pack based on the detection unit 101 40 electrical information, identify the real-time voltage of the built-in battery 10 and the real-time voltage of the battery pack 40, and determine the discharge power of the built-in battery 10 and the discharge power of the battery pack 40.
- the comparison unit 103 compares the power demand of the load according to the discharge power of the built-in battery 10 and the battery pack 40, and compares the type of discharge current released by the built-in battery 10 and the battery pack 40 with the type of current required by the load to determine the object to release the discharge current. and whether the discharge current requires current conversion processing.
- the built-in battery 10 and the battery pack 40 are used to discharge the load. That is, the detection unit 101 detects that the load and the battery pack 40 are connected to the energy storage device, and the identification unit 102 recognizes that the load requires electricity and the power supply source is the built-in battery 10 and the battery pack 40 .
- the comparison unit 103 outputs a discharge control instruction for the built-in battery 10 and the battery pack 40 to jointly discharge the load, and determines whether current conversion processing is required.
- the discharge unit 105 controls the built-in battery 10 and the battery pack 40 and releases the discharge current. If current conversion processing is required, the discharge current flows through the inverter 22 and undergoes current conversion, and then is transmitted to the load through the output interface 23 to provide power to the load. That is, when the battery pack 40 is connected to the energy storage device and detects that a load is connected to the energy storage device and needs power, the energy storage device combines the built-in battery 10 and the battery pack 40 to release the discharge current to power the load.
- the comparison unit 103 determines the compatibility mode of the built-in battery 10 and the battery pack 40 based on the electrical information of the built-in battery 10 and the battery pack 40 .
- the comparison unit 103 compares the real-time voltage conditions of the built-in battery 10 and the battery pack 40. If the voltages of the built-in battery 10 and the battery pack 40 are different, the control discharge unit 105 first adjusts the voltages of the built-in battery 10 and the battery pack 40 until the voltages of the built-in battery 10 and the battery pack 40 are different. After the voltage of the battery pack 40 is balanced, the built-in battery 10 and the battery pack 40 are then controlled to be compatible.
- the method of adjusting the voltage may be to step down the voltage of the built-in battery 10 or the battery pack 40 with a high voltage to the same voltage as the battery pack 40 or the built-in battery 10 with a low voltage, or it may be to reduce the voltage of the built-in battery 10 or the battery pack 40 with a low voltage.
- the voltage is boosted to the same voltage as the higher-voltage battery pack 40 or the built-in battery 10 .
- the discharge unit 104 controls the built-in battery 10 and the battery pack 40 to be parallel, release the discharge current, and output the discharge current to the load through the output interface 23 to provide power for the load.
- whether the built-in battery 10 and the battery pack 40 need to be parallel-loaded is selected based on the power demand of the load and the power condition of the built-in battery 10 .
- the identification unit 102 identifies the power demand of the load and the discharge power of the built-in battery 10
- the comparison unit 103 compares the discharge power of the built-in battery 10 with the power demand of the load. If the discharge power of the built-in battery 10 exceeds the power demand of the load, If the electric power is required, the comparison unit 103 determines that the built-in battery 10 is discharging to the load, and outputs the corresponding discharge control command to the discharge unit 105.
- the discharge unit 105 controls the built-in battery 10 to release the discharge current, which is delivered to the load through the output interface 23. If the comparison unit 103 analyzes that the discharge power of the built-in battery 10 cannot meet the power demand of the load, the identification unit 102 identifies the discharge power of the battery pack 40. If there are two or more battery packs 40 connected to the energy storage device, it identifies The unit 102 separately identifies the discharge power of each battery pack 40 based on the information detected and obtained by the detection unit 101 .
- the comparison unit 103 obtains the discharge power of each battery pack 40, combines the discharge power of the built-in battery 10 with the power demand of the load, and determines that the discharge power of the built-in battery 10 cannot meet the power demand of the load, and the built-in battery 10 needs to be accommodated. and the battery pack 40. Further, the comparison unit 103 compares the built-in battery 10 with the battery pack. 40 of the discharge power and the power demand of the load, determine the battery pack 40 that is compatible with the built-in battery 10, and output a discharge control instruction. The discharge unit 105 controls the corresponding battery pack 40 and the built-in battery 10 according to the discharge control instruction. capacity, releasing the discharge current. If there are different voltages, the built-in battery 10 and the battery pack 40 can be combined in a balanced voltage state after voltage adjustment. The voltage adjustment method can be step-up or step-down.
- the voltage adjustment method of the built-in battery 10 and the battery pack 40 that need to be compatible is step-down.
- the high-voltage built-in battery 10 or battery pack 40 is subjected to voltage reduction processing, for example, first releasing a certain current to reduce the voltage until the built-in battery 10 and the battery pack 40 are in a voltage balance state, and then the built-in battery 10 and the battery pack are combined. 40. Release the discharge current.
- the identification unit 102 identifies the real-time voltages of the built-in battery 10 and the battery pack 40
- the comparison unit 103 compares the real-time voltage differences between the built-in battery 10 and the battery pack 40
- the discharge power source 105 to first control the built-in battery 10 or the battery pack 40 with the higher voltage. Release part of the current to reduce voltage
- an adjustment unit 106 is provided.
- the adjustment unit 106 is communicatively connected to the comparison unit 103.
- the comparison unit 103 determines the voltage adjustment method of the built-in battery 10 and/or the battery pack 40 based on the real-time voltage information of the built-in battery 10 and the battery pack 40, The voltage adjustment command is output to the adjustment unit 106 .
- the adjustment unit 106 executes the voltage adjustment instruction. After completion, it sends a voltage adjustment completion signal to the comparison unit 103.
- the comparison unit 103 responds to the voltage adjustment completion signal and issues a discharge control instruction, instructing the discharge unit 105 to accommodate the built-in battery 10 and the battery pack 40, and release Discharge current.
- the adjustment unit 106 reduces the voltage of the built-in battery 10 or the battery pack 40 with a high voltage.
- the voltage adjustment method of the built-in battery 10 and the battery pack 40 that need to be compatible can be voltage boosting, and the adjustment unit 106 boosts the voltage of the built-in battery 10 or the battery pack 40 with a low voltage.
- the adjustment unit 106 adjusts the voltages of the built-in battery 10 and the battery pack 40 to reach a voltage balance threshold, so that the built-in battery 10 and the battery pack 40 are in a voltage balance state.
- the built-in battery 10 and/or the battery pack 40 reaches a voltage balance state after undergoing voltage boosting or voltage reduction processing by the regulating unit 106 .
- whether the built-in battery 10 and the battery pack 40 need to be concurrently accommodated is selected based on the power demand of the load, the power condition of the built-in battery 10, the condition of the battery pack 40, and the circuit status. If If necessary, further select a battery pack 40 that is compatible with the built-in battery 10.
- a suitable battery pack 40 can be selected according to the working status of the battery pack 40.
- the detection unit 101 detects the circuit status and the status of each device connected to the circuit. In particular, the detection unit 101 detects the working status of the battery pack 40, and the identification unit 102 identifies whether the circuit of the battery pack 40 is normal based on this. If the identification unit 102 If it is recognized that the battery pack 40 is normal, the recognition unit 102 recognizes that the battery pack 40 can be used as a power supply source. If the identification unit 102 identifies that the battery pack 40 is abnormal, the identification unit 102 identifies that the battery pack 40 cannot be used as a power supply source. That is, the identification unit 102 identifies that the battery pack 40 in normal working condition can be used as a power supply source to accommodate both the built-in battery 10 and the battery pack 40 .
- the adjustment unit 106 adjusts the built-in battery 10 and the battery pack 40 to be balanced to a voltage balance state, and then the discharge unit 105 controls the built-in battery 10 and the battery pack 40 to release the discharge current.
- the battery pack 40 when the battery pack 40 is connected to the energy storage device, if the energy storage device needs to supply power to the load, it is determined based on the discharge power of the built-in battery 10 and the power demand of the load whether the battery pack 40 is needed and the load is jointly used. Discharge, when the discharge power of the built-in battery 10 cannot meet the power demand of the load, the built-in battery 10 and the battery pack 40 are combined so that the discharge power can meet the power demand of the load, and the discharge current is released to the load. If there are two or more battery packs 40 connected to the energy storage device, the battery pack 40 that is compatible with the built-in battery 10 is determined based on the power demand of the load and the discharge power of the built-in battery 10 and each battery pack 40 . Object, so that the discharge power after the merger can meet the power of the load.
- the energy storage device also has a discharge switching function.
- the power from the external power supply is used to meet the power demand of the load and/or the battery pack 40. It can also charge the built-in battery 10.
- the power supply source can be switched to the built-in battery 10 and/or the battery pack 40, and the built-in battery 10 and/or the second unit 40 provide power to the load. Therefore, when the load continues to request power from the energy storage device, even if the power status of the input interface 21 changes, the built-in battery 10 and/or the battery pack 40 can be switched to the power supply source in time to discharge, so that the load can continue Get power and keep it powered.
- the identification unit 102 identifies the power supply source as the external power supply.
- the load is connected to the energy storage device
- the detection unit 101 detects that the load is connected to the energy storage device
- the identification unit 102 identifies that the power demand is to supply power to the load.
- the comparison unit 103 compares the power supply source and power demand, analyzes the current type of the power supply source and the power demand current type of the load, determines the type and power of the discharge current that needs to be output, generates a discharge control instruction, and sends it to the discharge unit 105.
- 105 executes the discharge control command and controls the input interface 21 to output the discharge current.
- the inverter 22 is controlled to convert the current type, and the output interface 23 outputs the discharge current that meets the power demand to power the load. If the detection unit 101 detects that the power of the built-in battery 10 is insufficient, the recognition unit 102 recognizes that the power demand also includes charging the built-in battery 10, and the comparison unit 103 issues a charging control instruction, instructing the charging unit 104 to convert the power obtained by the input interface 21 into charging current. Charges the built-in battery 10. Energy storage equipment can be placed and charged at the same time.
- the input interface 21 switches from the powered state to the unpowered state, and the built-in battery 10 stores power.
- the identification unit 102 identifies that the power supply source is switched to the built-in battery 10 and the power demand is to supply power to the load.
- the comparison unit 103 issues a new discharge control instruction based on the new power supply source and power demand, instructing the charging unit 104 to stop releasing charging current.
- the discharging unit 105 switches the power supply source to the built-in battery 10 and controls the built-in battery 10 to release the discharging current. If Current conversion processing is required. After the discharge current is processed by the inverter 22, the output interface 23 outputs a discharge current that meets the load's power demand. Provide power to the load.
- the recognition unit 102 recognizes that the battery pack 40 has insufficient power and recognizes the increased power demand for charging the battery pack 40
- the comparison unit 103 compares the power supply source with the new power demand, issues a new charging control instruction, and instructs the charging unit 104 to control the charging current to flow into the battery pack 40 through the built-in battery 10 to provide power to the battery pack 40 .
- the charging unit 104 can charge the built-in battery 10, and the discharging unit 105 supplies power to the load.
- the detection unit 101 detects that the input interface 21 is disconnected from the external power supply, or suspends obtaining power from the external power supply, that is, the input interface 21 transitions from the powered state to the unpowered state
- the built-in battery 10 stores
- the battery pack 40 stores the electric power
- the identification unit 102 identifies that the power source is switched to be selected from the built-in battery 10 and/or the battery pack 40 .
- the identification unit 102 identifies that the power demand is to supply power to the load without charging the built-in battery 10 and/or the battery pack 40 .
- the comparison unit 103 compares the new power supply source and power demand, and determines a new current transmission path and current conversion process.
- the comparison unit 103 instructs the discharge unit 104 and allows the built-in battery 10 and the battery pack 40 to release the discharge current to power the load. If current conversion processing is required, the inverter 22 can process it and output a discharge current that meets the power demand. Alternatively, the comparison unit 103 compares the discharge power of the built-in battery 10 and the battery pack 40 with the power demand of the load. If the discharge power of the built-in battery 10 is sufficient to meet the power demand of the load, the current output path is from the built-in battery 10 to the load. , instructing the discharge unit 105 to control the built-in battery 10 to release the discharge current, and then output it to the load after undergoing required current conversion processing.
- the built-in battery 10 and the battery pack 40 are combined, and the current transmission path is to the built-in battery 10 and the battery pack 40 and output to the load. Further, by comparing the voltages of the built-in battery 10 and the battery pack 40, if the voltages are not in a balanced state, the adjustment unit 106 is instructed to adjust the voltages of the built-in battery 10 and the battery pack 40 to a balanced state. After that, the discharging unit 105 controls the built-in battery 10 and the battery pack 40. The battery pack 40 also releases discharge current to the load.
- the battery pack 40 In addition, after the battery pack 40 is installed on the energy storage device, the battery pack 40 and the energy storage device need to be electrically connected so that the battery pack 40 is electrically connected to the circuit of the energy storage device.
- the battery pack 40 communicates with the energy storage device for identification.
- the battery pack 40 and the energy storage device communicate with each other to identify each other, and the built-in battery 10 and the energy storage device identify each other. If the identification is successful, the built-in battery 10 and the energy storage device are connected.
- the battery pack 40 is provided with a physical switch, and the startup and shutdown of the battery pack 40 are controlled by the physical switch.
- the battery pack 40 installs the battery pack 40 to the energy storage device.
- the battery pack 40 sends a level signal to the energy storage device, activates the BMS module of the energy storage device, and sends an identification signal to the battery pack 40, such as an identification code stored in the energy storage device.
- Battery pack 40 receives the identification code. If the identification is successful, it feeds back the identity code of the battery pack 40. Pin the code to the energy storage device. If the energy storage device is successfully identified, the communication between the energy storage device and the battery pack 40 is successfully identified and the connection can be made. That is to say, the energy storage device and the battery pack 40 perform handshake communication. If the handshake communication is successful, the battery pack 40 and the energy storage device are electrically connected. Mutual communication and identification can be performed by the BMS module of the battery pack 40 and the BMS module of the energy storage device.
- the interface of the battery pack 40 is at least partially blocked by the housing 30 to prevent the interface of the battery pack 40 from being used. That is to say, after the battery pack 40 is connected to the energy storage device, the battery pack 40 itself cannot discharge and only conducts current transmission with the energy storage device.
- the detection unit 101 detects the circuit status of the energy storage device and the working status of each device connected to the energy storage device circuit, so that the identification unit 102 can identify whether there is a circuit abnormality or the device operation is abnormal. If it is detected that the circuit through which the charging current flows is abnormal, or the internal circuit of the battery pack 40 is abnormal, the comparison unit 103 controls the charging unit 104 to stop charging the battery pack 40 . If it is detected that the circuit through which the discharge current flows is abnormal, or the circuit inside the load is abnormal, the comparison unit 103 controls the discharge unit 105 to stop supplying power to the load. When the circuit status returns to normal, charging or discharging is restarted.
- the housing 30 of the energy storage device is a split housing 30A, and the housing 30A includes a first housing.
- the body 31A and the second housing 32A, the built-in battery 10 is provided in the first housing 31A, the power transmitter 20 is provided in the second housing 32A, the first housing 31A and the second housing 32A are detachably connected, and the built-in The battery 10 and the power transmitter 20 are detachably connected. After the built-in battery 10 and the transmitter 20 are connected, the two can be connected for current transmission.
- the first housing 31A and the second housing 32A are respectively provided with a built-in battery interface and a power transmitter interface.
- the built-in battery interface circuit is connected to the built-in battery, and the power transmitter interface circuit is connected to the power transmitter 20.
- the first case 31A and the second case After the bodies 32A are connected to each other, the built-in battery interface and the transmitter interface are conductively connected, so that the built-in battery 10 and the transmitter 20 are electrically connected for current transmission.
- the built-in battery 10 can discharge electricity to the power transmitter 20 and serve as a power supply source for the power transmitter 20 .
- the built-in battery 10 can also receive power from the power transmitter 20. When the power transmitter 20 is connected to an external power source, the built-in battery 10 can receive power to be charged.
- the first housing 31A is provided with at least one cavity 301A.
- the cavity 301A is suitable for accommodating the battery pack 40.
- the battery pack 40 is received behind the cavity 301A and is conductively connected to the built-in battery 10. After the battery pack 40 is placed in the cavity 301A, the outer peripheral surface 41 of the battery pack 40 is at least partially wrapped by the cavity 301A.
- One or more first DC interfaces 311A are provided in the first housing 31A, and the first DC interfaces 311A are electrically connected to the built-in battery 11 to output DC current to the outside.
- the built-in battery 10 can independently output DC current through the first DC interface 311A.
- a second DC interface 321A and an AC output interface 322A are provided in the second housing 32A. The second DC interface 321A and the AC output interface 322A are respectively connected to the transmitter 20, and the transmitter 20 outputs DC current and AC current.
- the first housing 31A is placed on the top of the second housing 32A, and the second housing 32A serves as the base of the first housing 31A. That is, the built-in battery 10 is placed on the top of the power transmitter 20 , and the power transmitter 20 serves as the base of the built-in battery 10 .
- the first housing 31A can be detached from the second housing 32A, so that the built-in battery 10 can be used independently.
- the transmitter 20 can also be used independently when connected to an external power supply to supply power to the load.
- the battery pack 40 can be installed in the first housing 31A, and the built-in battery 10 can charge the battery pack 40 .
- the built-in battery 10 can also independently provide power to the load. After the battery pack 40 is charged, it can also independently supply power to the load. When the built-in battery 10 and the battery pack 40 are connected, you can choose whether to concurrently supply power to the load connected to the built-in battery 10 according to your needs.
- the built-in battery 10 when used independently, it can supply power to the load connected to the built-in battery 10 alone, or it can also be used in combination with the battery pack 40 to power the load.
- the first housing 31A is provided with a screen 33A, and the screen 33A is electrically connected to the built-in battery 10 to obtain power, display information about the built-in battery 10, and interact with the user.
- a screen is provided on the second housing 32A, and the screen circuit is connected to the power transmitter 20 to obtain power, display information about the power transmitter, and interact with the user.
- the charge and discharge control system controls the charging and discharging of the energy storage device.
- the detection unit 101 detects whether the energy storage device is in a split state or a combined state.
- the built-in battery 10 and the transmitter work independently, the built-in battery 10 independently outputs DC current, and the transmitter 20 can output AC current and DC current.
- the energy storage device is in a combined state,
- the energy storage device further includes a communication module.
- the communication module is connected to the power transmitter 20 and the built-in battery 10 to transmit information with the power transmitter 20 and the built-in battery 10 .
- the communication module can be communicatively connected to the terminal to interact with the terminal. The user operates the terminal to obtain information about the energy storage device, and obtains information and working status of the built-in battery 10 and the power transmitter 20 . The user sends operating instructions to the energy storage device through the terminal to control the work of the energy storage device.
- the user can understand the power information and charging and discharging work information of the built-in battery 10 through the communication between the terminal and the communication module, and the power acquisition status, current conversion status, current output status, etc. of the transmitter 20 .
- the communication module obtains the information and status of the battery pack 40 and/or the load, and feeds it back to the terminal so that the user can obtain and monitor the information and work of the battery pack 40 and/or the load. Status, understand the power information, charge and discharge information, and capacity information of the battery pack 40, and understand the power consumption and working status of the load.
- the communication module is communicatively connected to the charge and discharge control system 100, so that the user can operate the charge and discharge control system 100 and control the charging and discharging of the energy storage device through the communication connection between the terminal and the communication module.
- the energy storage device can be used as a type of IoT application terminal to realize intelligent IoT.
- Users can operate the energy storage device and set functions through the terminal. Specifically, the user can instruct the energy storage device through the terminal to charge the built-in battery 10, power the load, charge the battery pack 40, select which battery pack 40 to charge, select whether to accommodate both the built-in battery 10 and the battery pack 40, select and Built-in battery pack of 10 and 40 batteries.
- the terminal responds to user operations and issues corresponding control instructions, and the energy storage device executes the control instructions to charge and/or discharge.
- the control instructions of the terminal can be obtained through the charge and discharge control system 100, and the charging unit 104 and the discharging unit 105 execute the charging related instructions and the discharging related instructions respectively.
- the charge and discharge control system 100 feeds back the corresponding execution status and the working status of each device to the terminal.
- the communication between the terminal and the energy storage device can also be established through the cloud.
- the terminal sends instructions to the cloud, which are forwarded to the energy storage device, and the energy storage device executes the relevant instructions.
- the energy storage device can feed back information to the cloud, the cloud sends relevant information about the energy storage device to the terminal, and the cloud can store the information about the energy storage device.
- the communication method between the terminal and the energy storage device can be WIFI, Bluetooth, mobile communication, Ethernet, RF communication, etc.
- this application also provides a charge and discharge control method for controlling the charge and discharge of energy storage equipment, including the steps:
- the battery pack will be charged first. After the battery pack is charged, the built-in battery will be charged.
- the charging control method further includes steps:
- the charge and discharge control method also includes steps:
- the detection load is connected to the energy storage device to request power
- Detect the circuit of the battery pack connected to the energy storage device identify the battery pack as the power supply source, and connect the battery pack and the built-in battery to output the discharge current and power the load.
- the discharge control method further includes the steps:
- the discharge control method further includes the steps of:
- the discharge control method also includes steps:
- the built-in battery After the built-in battery and the battery pack are connected together, the built-in battery is controlled to discharge first. When the built-in battery is completely discharged, it switches to the battery pack to discharge.
- the discharge control method also includes steps: after the built-in battery and the battery pack are connected in parallel, control the built-in battery and the battery pack to discharge sequentially according to a preset discharge sequence.
- the discharge control method also includes steps: after the built-in battery and the battery pack are connected in parallel, the one with the higher voltage is discharged first, until the voltages of the built-in battery and the battery pack are equalized, and they are discharged together.
- the present invention further provides a charge and discharge control method for controlling the charging and discharging of energy storage equipment.
- the charge and discharge control method includes the following steps:
- (B) Compare the power supply situation and power demand to select to release charging current and/or discharging current, in which the built-in battery and battery pack can selectively be used to power the load.
- the method also includes the following steps:
- the power demand is recognized to charge the battery pack
- the power supply status is identified as external power supply. If the input interface is not connected to external power supply and the built-in battery has power, the power supply status is identified as built-in battery power supply.
- the method also includes the following steps:
- the identified load is connected to the energy storage device, the identified power demand is to supply power to the load;
- Identify the power supply situation If the input interface is identified to be connected to an external power supply, it is identified that the power supply is powered by an external power supply. If the input interface is not connected to an external power supply, the built-in battery has power, and the power supply situation is identified to be powered by the built-in battery;
- the identification battery pack can be used as a power supply source
- the method also includes the following steps: identifying power supply source switching, comparing the new power supply source with real-time power demand, issuing new control instructions, and performing charging and/or discharging control.
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Abstract
Description
Claims (35)
- 一种储能设备,包括储能电源和与之可拆卸连接的电池包;所述储能电源包括:壳体,其配置有安装部,所述安装部包括一接口;内置电池和逆变器,其分别设置于所述壳体内,与所述安装部不干涉;以及,输入接口和输出接口,其分别设置于所述壳体上适于用户接触使用;所述电池包自由拆装连接于所述安装部,并包括适于与所述接口进行机械和电连接的电源输出口;其特征在于:所述电池包配置于所述储能电源时至少具备2种不同的作业状态;第一作业状态:所述电池包通过所述电源输出口与所述接口的机械和电连接被来自于所述储能电源一端的电力充电;第二作业状态:所述电池包通过所述电源输出口与所述接口的机械和电连接与所述内置电池分别耦合于所述逆变器,进而通过所述输出接口输出AC电流。
- 根据权利要求1所述的储能设备,其特征在于:所述电池包至少包括2种充电方式,充电方式一:当所述输入接口接入外接电源充电时,所述电池包通过所述电源输出口与所述接口的机械和电连接接收所述外接电源的电力充电;充电方式二:当所述输入接口未接入外接电源充电时,所述电池包通过所述电源输出口与所述接口的机械和电连接接收所述内置电池的电力充电。
- 根据权利要求1或2所述的储能设备,其特征在于:当所述输入接口接入外接电源充电时,所述电池包与所述内置电池的二者之一优先接收电力被充电,当其充电完毕时,另一再接收电力被充电。
- 根据权利要求1所述的储能设备,其特征在于:还包括:控制键,其被配置为用于选择控制所述电池包是否耦合于所述逆变器。
- 根据权利要求4所述的储能设备,其特征在于:当通过所述控制键控制所述电池包未耦合于所述逆变器时,所述内置电池适于同时供电输出电力至所述电池包和所述逆变器,以供所述电池包充电和所述逆变器逆变输出AC电流。
- 根据权利要求4所述的储能设备,其特征在于:当通过所述控制键控制所述电池包耦合于所述逆变器时,所述电池包适于供电输出电力至所述逆变器,以供所述逆变器逆变输出AC电流。
- 根据权利要求1所述的储能设备,其特征在于:所述电池包与所述内置电池分别耦合 于所述逆变器时,所述内置电池优先输出电力供所述逆变器输出AC电流,当所述内置电池电压降低至一低压保护阈值时,切换至所述电池包输出电力供所述逆变器输出AC电流。
- 一种储能设备,包括:储能电源,所述储能电源包括内置电池、输电器和壳体;所述输电器适于连接外部电源,为所述储能设备获电,所述内置电池电路连接于所述输电器,以通过所述输电器充电和放电,所述输电器适于连接负载,为负载供电;所述内置电池和所述输电器被安装于所述壳体;其特征在于:还包括:电池包,所述电池包被可拆卸地安装于所述壳体,和所述输电器电路连接,以通过所述储能电源被充电,其中,当所述内置电池和所述电池包均需要充电时,所述电池包优先于所述内置电池被充电。
- 根据权利要求8所述的储能设备,其特征在于:所述输电器连接外部电源,所述储能设备处于获电状态,当检测到所述内置电池和所述电池包均需要充电时,所述输电器优先将外部电源的电力转换为第二充电电流,完成所述电池包的充电,之后,所述输电器将外部电源的电力转换为第一充电电流,为所述内置电池充电。
- 根据权利要求9所述的储能设备,其特征在于:当存在两个或两个以上的所述电池包需要充电时,按照电量从低到高的电池包充电顺序,依次完成两个或两个以上的所述电池包的充电。
- 根据权利要求9所述的储能设备,其特征在于:当存在两个或两个以上的所述电池包需要充电时,按照电量从高到第的电池包充电顺序,依次完成两个或两个以上的所述电池包的充电。
- 根据权利要求9所述的储能设备,其特征在于:当存在两个或两个以上的所述电池包需要充电时,同时为所有所述电池包充电,直至完成各个所述电池包的充电。
- 根据权利要求9所述的储能设备,其特征在于:当存在两个或两个以上的所述电池包需要充电时,交替地为所有所述电池包充电,直至完成各个所述电池包的充电。
- 根据权利要求8所述的储能设备,其特征在于:所述输电器未连接外部电源,所述储能设备处于未获电状态,由所述内置电池提供放电电流为连接的负载供电,其中,存在所述电池包电路连接至所述储能设备的电路,由所述内置电池和所述电池包并容连接,为负载供电。
- 根据权利要求14所述的储能设备,其特征在于:所述储能设备被设有并容控制键,所述电池包被电路连接至所述输电器,同所述并容控制键电路连接,所述并容控制键被操作 以控制相应的所述电池包同所述内置电池并容连接。
- 根据权利要求14或15所述的储能设备,其特征在于:所述电池包和所述内置电池并容连接后,首先由所述内置电池释放电流,经由所述输电器转换为放电电流后,为负载供电,至所述内置电池放电完毕,切换为所述电池包放电,经由所述输电器转换为所述放电电流,继续为负载供电,延长所述储能设备的放电时间。
- 根据权利要求16所述的储能设备,其特征在于:当所述内置电池放电至电压为零,所述内置电池放电完毕,切换为所述电池包放电。
- 根据权利要求16所述的储能设备,其特征在于:当所述内置电池放电至电压低于第一低压阈值,所述内置电池放电完毕,进入低压保护状态,切换为所述电池包放电。
- 根据权利要求14或15所述的储能设备,其特征在于:所述电池包和所述内置电池并容连接后,首先由所述电池包和所述内置电池中电压较高者放电,至所述电池包和所述内置电池达到电压均衡状态,所述电池包和所述内置电池共同放电,经由所述输电器转换为放电电流,为负载供电。
- 根据权利要求16所述的储能设备,其特征在于:所述电池包和所述内置电池并容连接后,共同放电,经由所述输电器转换为放电电流,为负载供电,其中,所述电池包放电至低于第二低压阈值后,停止放电,进入低压保护状态,所述内置电池放电至低于第一低压阈值后,停止放电,进入低压保护状态。
- 一种充放电控制系统,适于控制储能设备的充电和放电,其特征在于:包括:检测单元,所述检测单元电路连接于所述储能设备的电路,以检测电路连接的各器件的电信息,其中,所述检测单元检测储能设备是否被接入电池包并进一步检测所述电池包的电信息;识别单元,所述识别单元通信地连接于所述检测单元,以根据所述检测单元所检测的电信息,识别所述储能设备的供电来源和用电需求;比较单元,所述比较单元通信地连接于所述识别单元,以对比所述供电来源和所述用电需求,产生相应的充电控制指令和/或放电控制指令,其中,当所述用电需求是为所述储能设备的内置电池和接入的所述电池包充电,所述比较单元生成的充电控制指令是:优先为所述电池包充电,完成所述电池包的充电后,为所述内置电池充电;以及充电单元,所述充电单元电路连接于所述比较单元,以执行所述充电控制指令。
- 根据权利要求21所述的充放电控制系统,其特征在于:所述比较单元所生成的所述充电控制指令进一步包括:按照预设的电池包充电优先级,为接入所述储能设备的两个或两个以上的所述电池包充电。
- 根据权利要求21所述的充放电控制系统,其特征在于:所述检测单元检测所述输电器被连接负载,所述识别单元识别用电需求是为负载供电,所述比较单元根据所述识别单元所识别的供电来源,对比所述用电需求,生成放电控制指令,其中,所述充放电控制系统还包括:放电单元,所述放电单元通信地连接于所述比较单元,以执行所述放电控制指令,控制所述储能设备输出放电电流,为负载供电。
- 根据权利要求23所述的充放电控制系统,其特征在于:所述检测单元检测所述电池包被接入负载,所述识别单元识别供电来源为所述内置电池和所述电池包可供电,则所述比较单元生成所述放电控制指令为:并容连接所述内置电池和所述电池包,以并容输出放电电流,为负载供电。
- 根据权利要求24所述的充放电控制系统,其特征在于:所述检测单元检测到所述电池包接入所述储能设备,即被所述识别单元识别为供电来源,可同所述内置电池并容。
- 根据权利要求24所述的充放电控制形态,其特征在于:所述检测单元检测到所述储能设备的并容控制键被触发,由所述识别单元识别所述并容控制键控制的所述电池包为所述供电来源,可同所述内置电池并容。
- 根据权利要求25或26所述的充放电控制系统,其特征在于:所述放电控制指令进一步包括所述电池包和所述内置电池的并容输出方式为:首先由所述内置电池放电,至所述内置电池放电完毕后,切换为并容连接的所述电池包放电。
- 根据权利要求27所述的充放电控制系统,其特征在于:所述检测单元检测到所述内置电池放电至电压为零,则所述内置电池放电完毕,所述放电单元切换至所述电池包放电。
- 根据权利要求27所述的充放电控制系统,其特征在于:所述检测单元检测到所述内置电池放电至电压低于第一低压阈值,则所述内置电池放电完毕,所述放电单元切换至所述电池包放电。
- 根据权利要求29所述的充放电控制系统,其特征在于:所述检测单元检测到所述电池包的电压低于第二低压阈值,则所述放电单元停止所述电池包的放电。
- 根据权利要求25或26所述的充放电控制系统,其特征在于:所述放电控制指令进一步包括所述电池包和所述内置电池的并容输出方式为:首先由所述内置电池和所述电池包中电压较高者放电,至所述内置电池和所述电池包电压均衡后,所述内置电池和所述电池包共同放电。
- 根据权利要求27所述的充放电控制系统,其特征在于:所述识别单元识别两个或两个以上的所述电池包作为所述供电来源,可同所述内置电池并容,所述比较单元生成的所述 放电控制指令进一步包括:切换至所述电池包放电后,按照预设的电池包放电顺序控制两个或两个以上的电池包放电。
- 根据权利要求32所述的充放电控制系统,其特征在于:所述电池包放电顺序被预设为:按照电压从高到底的放电顺序依次控制并容的每个所述电池包放电。
- 根据权利要求32所述的充放电控制系统,其特征在于:所述电池包放电顺序被预设为:按照电压从低到高的放电顺序依次控制并容的每个所述电池包放电。
- 根据权利要求32所述的充放电控制系统,其特征在于:所述电池包放电顺序被预设为:首先由电压较高的所述电池包放电,至依次和电压较低的所述电池包电压均衡后,共同放电,直至并容的每个所述电池包电压均衡,共同放电。
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| EP23778465.7A EP4503378A4 (en) | 2022-03-31 | 2023-03-31 | ENERGY STORAGE DEVICE AND ASSOCIATED CHARGE/DISCHARGE CONTROL SYSTEM |
| US18/852,528 US20250219218A1 (en) | 2022-03-31 | 2023-03-31 | Energy storage device and charging/discharging control system therefor |
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| JP2025503024A JP2025512120A (ja) | 2022-03-31 | 2023-03-31 | エネルギー貯蔵装置及びその充放電制御システム |
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| CN118400397A (zh) * | 2024-06-25 | 2024-07-26 | 广州菲利斯太阳能科技有限公司 | 一种基于算法的逆变器与电池包通信切换方法 |
| CN119651887A (zh) * | 2025-02-18 | 2025-03-18 | 深圳市新鹏翔电子有限公司 | 一种自保护ups电源 |
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| CN119275883B (zh) * | 2024-12-10 | 2025-03-07 | 东方博沃(北京)科技有限公司 | 一种储能变流器 |
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Also Published As
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| CN118830163A (zh) | 2024-10-22 |
| EP4503378A4 (en) | 2025-10-22 |
| JP2025512120A (ja) | 2025-04-16 |
| CN220692842U (zh) | 2024-03-29 |
| CA3247200A1 (en) | 2025-07-09 |
| US20250219218A1 (en) | 2025-07-03 |
| EP4503378A1 (en) | 2025-02-05 |
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