WO2023201533A1 - 第一电源及其控制方法、第二电源和储能设备 - Google Patents

第一电源及其控制方法、第二电源和储能设备 Download PDF

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Publication number
WO2023201533A1
WO2023201533A1 PCT/CN2022/087738 CN2022087738W WO2023201533A1 WO 2023201533 A1 WO2023201533 A1 WO 2023201533A1 CN 2022087738 W CN2022087738 W CN 2022087738W WO 2023201533 A1 WO2023201533 A1 WO 2023201533A1
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WIPO (PCT)
Prior art keywords
energy storage
storage group
power supply
interface
power
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PCT/CN2022/087738
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English (en)
French (fr)
Inventor
雷云
张智锋
欧阳明星
Original Assignee
深圳市华思旭科技有限公司
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Application filed by 深圳市华思旭科技有限公司 filed Critical 深圳市华思旭科技有限公司
Priority to CN202280004447.9A priority Critical patent/CN115868096A/zh
Priority to PCT/CN2022/087738 priority patent/WO2023201533A1/zh
Publication of WO2023201533A1 publication Critical patent/WO2023201533A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00Systems for storing electric energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting

Definitions

  • the present application relates to the field of power supply technology, and in particular, to a first power supply and its control method, a second power supply and an energy storage device.
  • the main purpose of this application is to provide a first power supply, a second power supply and an energy storage device, aiming to improve the adaptability of the energy storage device to application scenarios.
  • this application provides a first power supply that can be detachably connected to a second power supply, and the first power supply includes:
  • the first energy storage group
  • a first interface the first interface is connected to the first energy storage group, the first interface is used to connect to a second interface of the second power supply, and the second interface is connected to a third interface of the second power supply.
  • Two energy storage groups are connected;
  • the first main control circuit is used to connect the first energy storage group and the second energy storage group in parallel, so as to utilize the parallel-connected first energy storage group and the second energy storage group to provide external power.
  • this application provides a first power supply that can be detachably connected to a second power supply, and the first power supply includes:
  • the first energy storage group
  • a first interface is connected to the first energy storage group, and the first interface is used to connect to the second interface of the second power supply, so that the first energy storage group is controllably connected to
  • the second energy storage group of the second power supply is connected in parallel, and external power is supplied based on the parallel-connected first energy storage group and the second energy storage group.
  • the application provides a second power supply
  • the second power supply is detachably connected to the first power supply
  • the second power supply includes:
  • the second interface is connected to the second energy storage group, the second interface is used to connect to the first interface of the first power supply, and the first interface is connected to the third interface of the first power supply.
  • the second energy storage group can be controllably connected in parallel with the first energy storage group of the first power supply to utilize the parallel-connected first energy storage group.
  • the energy group and the second energy storage group provide external power.
  • this application provides an energy storage power supply control method, applied to the first power supply described in the first aspect; the method includes:
  • the second power supply is connected to the first power supply.
  • this application provides an energy storage device, including:
  • the second power supply includes a second energy storage group and a second interface, the second interface is electrically connected to the second energy storage group;
  • the second power supply can be detachably connected to the first power supply, and when the second power supply is connected to the first power supply, the second interface is connected to the first interface of the first power supply.
  • this application provides an energy storage device, which is characterized by including:
  • the first power supply can be detachably connected to the second power supply.
  • the first interface of the first power supply and the third port of the second power supply Two interface connections.
  • This application provides a first power supply and its control method, a second power supply and an energy storage device, wherein the first power supply can be detachably connected to the second power supply, and the first power supply includes: a first energy storage group; a first interface to connect The first energy storage group is used to connect to the second interface of the second power supply, and the second interface of the second power supply is connected to the second energy storage group of the second power supply; the first main control circuit is used to enable the first energy storage The first energy storage group and the second energy storage group are connected in parallel to use the parallel first energy storage group and the second energy storage group to provide external power supply.
  • the first power supply and the second power supply are detachably connected, so that the first power supply and the second power supply can supply power independently, and when the first interface is connected to the second interface of the second power supply, the first energy storage group and the third power supply can be connected.
  • the second energy storage group realizes parallel connection for external power supply, aiming to improve the adaptability of energy storage equipment to application scenarios.
  • FIG. 1 is a schematic block diagram of an energy storage device provided by an embodiment of the present application.
  • FIG. 2 is a schematic block diagram of an energy storage device provided by another embodiment of the present application.
  • FIG. 3 is a schematic block diagram of an energy storage device provided by yet another embodiment of the present application.
  • Figure 4 is a schematic block diagram of a second power supply provided by an embodiment of the present application.
  • Figure 5 is a schematic block diagram of a second power supply provided by yet another embodiment of the present application.
  • Figure 6 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 7 is a schematic block diagram of an energy storage device composed of the second power supply in Figure 5 and the first power supply in Figure 6;
  • Figure 8 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 9 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 10 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 11 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 12 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 13 is a schematic block diagram of a second power supply provided by yet another embodiment of the present application.
  • Figure 14 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • Figure 15 is a schematic block diagram of a second power supply provided by yet another embodiment of the present application.
  • Figure 16 is a schematic diagram of the interface connection between the first power supply and the second power supply provided by an embodiment of the present application
  • Figure 17 is a schematic diagram of the interface connection between the first power supply and the second power supply provided by another embodiment of the present application.
  • Figure 18 is a schematic flow chart of the implementation of the energy storage power supply control method provided by an embodiment of the present application.
  • the first energy storage group 120.
  • the second energy storage group 220.
  • the second interface 230.
  • Mains interface 240.
  • the first switching device 250.
  • the second communication port 260.
  • the second main control circuit 270.
  • the energy storage device 100 includes a first power supply 10 and a second power supply 20 .
  • the first power supply 10 and the second power supply 20 are detachably connected.
  • the first interface 120 of the first power supply is connected to the second interface 220 of the second power supply.
  • the first power supply 10 includes a first energy storage group 110 , a first interface 120 and a first main control circuit 130 ;
  • the second power supply 20 includes a second energy storage group 210 and a second interface 220 .
  • the first interface 120 is used to connect to the second interface 220 of the second power supply 20
  • the second interface 220 is connected to the second energy storage group 210 of the second power supply 20
  • the first main control circuit 130 is used to connect the first energy storage group 110 and the second energy storage group 210 in parallel, so as to utilize the parallel-connected first energy storage group 110 and the second energy storage group 210 to provide external power.
  • the first power supply 10 is a portable outdoor energy storage power supply
  • the second power supply 20 is an indoor energy storage power supply suitable for fixed placement in various scenarios such as homes, businesses, shops, etc.
  • the portable first power supply 10 When the user needs to use an outdoor power supply, he or she can directly carry the portable first power supply 10; when the user needs to use it indoors and requires larger power or power, if the power or power of the second power supply 20 cannot satisfy the user's current indoor use If necessary, the first power supply 10 and the second power supply 10 can be connected, and the power of the parallel-connected first energy storage group 110 and the second energy storage group 210 can be used to provide power to meet the user's current indoor use needs.
  • the above is only an application scenario of the embodiment of the present application.
  • the embodiment of the present application does not limit the second power supply 20 to be used indoors permanently.
  • the second power supply 20 can also be an energy storage power supply suitable for portable use outside.
  • the energy storage device 100 provided in the above embodiment is detachably connected through the first power supply 10 and the second power supply 20 , so that the first power supply 10 and the second power supply 20 can supply power independently, and can be connected to each other through the first interface 120
  • the second interface 220 of the second power supply 20 is connected, the first energy storage group 110 and the second energy storage group 210 are connected in parallel for external power supply, so as to improve the power supply flexibility of the energy storage device and its adaptability to application scenarios.
  • the first main control circuit 130 is used to connect the first energy storage group 110 and the second energy storage group 210 in parallel when the mains power supply to the AC load fails, so as to utilize the first energy storage group 110 and the second energy storage group 210 .
  • the second energy storage group 210 is connected in parallel to supply power to the AC load, or the first energy storage group 110 or the second energy storage group 210 is used to supply power to the AC load alone.
  • the first main control circuit 130 may determine the values of the first energy storage group 110 and the second energy storage group 210 .
  • the voltage difference and when the voltage difference between the first energy storage group 110 and the second energy storage group 210 is not within the preset difference range, control charging of the first energy storage group 110 and/or the second energy storage group 210 .
  • the preset difference value can be a value close to zero, such as 0.1, 0.02, etc. In addition, the preset difference value can also be zero.
  • the first main control circuit 130 is used to control the first energy storage group 110 and the second energy storage group 210 when the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than a preset difference.
  • the groups 210 are connected in parallel to utilize the parallel-connected first energy storage group 110 and the second energy storage group 210 to provide external power.
  • the first main control circuit 130 is used to control the first energy storage group 110 and the second energy storage group 210 by controlling the voltage difference between the first energy storage group 110 and the second energy storage group 210 when the voltage difference is greater than a preset difference.
  • the energy storage group with a larger voltage value in the second energy storage group 210 supplies external power until the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than the preset difference.
  • the first energy storage group 110 and the second energy storage group 210 can be controlled to be connected in parallel through the first main control circuit 130 , so as to utilize the parallel-connected first energy storage group 110 and the second energy storage group 210 to provide external power. to achieve power supply flexibility.
  • the first main control circuit 130 can also control the first energy storage group 110 and the second energy storage group 210 when the voltage difference between the first energy storage group 110 and the second energy storage group 210 is greater than the preset difference.
  • the energy storage group with a larger voltage value charges the energy storage group with a smaller voltage value until the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than the preset difference. It should be understood that when the voltage difference between the first energy storage group 110 and the second energy storage group 210 is large, a large current will be generated, thereby risking burning out components and circuits in the energy storage device.
  • the energy storage group with a larger voltage value can be controlled to supply power to the outside world, or by controlling the energy storage group with a larger voltage value.
  • the energy storage group charges the energy storage group with a smaller voltage value. After the voltage difference is less than the preset difference, the energy storage group is connected in parallel to provide external power supply, so as to achieve the flexibility of external power supply, improve the safety of power supply, and extend the service life of the energy storage equipment.
  • the first energy storage group 110 includes but is not limited to one or more of lead-acid batteries, nickel batteries, lithium batteries, flow batteries, sodium-sulfur batteries or supercapacitors.
  • the second energy storage group 210 includes, but is not limited to, one or more of lead-acid batteries, nickel batteries, lithium batteries, flow batteries, sodium-sulfur batteries or supercapacitors. It should be understood that, in order to utilize the parallel-connected first energy storage group 110 and the second energy storage group 210 to provide external power, the first energy storage group 110 and the second energy storage group 210 correspond to energy storage batteries of the same type.
  • the first main control circuit 130 of the first energy storage group 110 can control the switching device so that the first energy storage group 110 and the second energy storage group 210 are connected in parallel.
  • the switching device may be provided in the first power supply 10 or the second power supply 20 . In the embodiment of the present application, in order to make the first power supply 10 more convenient to carry outdoors, it is preferred that the switching device is provided in the second power supply 20 .
  • Figure 2 is a schematic block diagram of an energy storage device provided by another embodiment of the present application.
  • a first switching device 240 is provided in the second power supply 20 , and the first power supply 10 further includes a first communication port 160 .
  • the first communication port 160 is used to communicate with the second power supply 20; the first main control circuit 130 transmits the first communication signal to the second power supply 20 through the first communication port 160 to control the first switch in the second power supply 20.
  • the device 240 is turned on, so that the first energy storage group 10 and the second energy storage group 20 are connected in parallel.
  • the first communication port 160 is integrated in the first interface 120 . It should be understood that the first communication port 160 can be an independent communication port from the first interface 120 and can be set at any position of the first power supply 10 .
  • the first switching device 240 is disposed in the path between the second energy storage group 220 and the second interface 220 .
  • the first switching device 240 is used to control the first energy storage group 110 and the second energy storage group 110 .
  • the first switching device 240 may include a switching element.
  • the first switching device 240 may be disposed between the positive electrode of the first energy storage group 110 and the positive electrode of the second energy storage group 210 , or may be disposed between the negative electrode of the first energy storage group 110 and the negative electrode of the second energy storage group 210 . between.
  • the first switching device 240 is turned on, so that the first energy storage group 110 and the second energy storage group 210 are connected. In this way, the first energy storage group 110 and the second energy storage group 210 are connected in parallel.
  • the energy storage device provided by the embodiment of the present application is detachably connected through the first power supply and the second power supply, so that the first power supply and the second power supply can supply power separately, and can connect to the second power supply through the first interface.
  • the first energy storage group and the second energy storage group are connected in parallel for external power supply, so as to improve the flexibility of power supply of the energy storage device and its adaptability to application scenarios.
  • the second power supply 20 further includes a second communication port 250 .
  • the second communication port 250 is used to communicate with the first power supply 10 .
  • the second communication port 250 is used to receive the first communication signal sent by the first power supply 10, and the first communication signal is used to turn on the first switching device 130, so that the first energy storage group 10 and the second energy storage group Group 20 in parallel.
  • communication between the first power supply 10 and the second power supply 20 can be achieved by providing the first communication port 160 on the first power supply 10 and the second communication port 250 on the second power supply 20 .
  • the first main control circuit 130 transmits the first communication signal to the second communication port 250 through the first communication port 160 to control the first switching device 240 in the second power supply 20 to conduct, so that the first energy storage group 110 Connected in parallel with the second energy storage group 210.
  • the first main control circuit 130 of the first power supply 10 and the second main control circuit 260 of the second power supply 20 will detect the communication.
  • the signal is turned off.
  • the first main control circuit 130 may send a control signal to control the switching element in the first switching device 240 to turn off.
  • switching elements include but are not limited to relays, transistors, diodes or MOS tubes.
  • the first communication port 160 can be integrated into the first interface 120, or it can be an independent communication port from the first interface 120; similarly, the second communication port 250 can be integrated into the second interface 220, or it can be independent. on the communication port of the second interface 220.
  • the second main control circuit 260 can be provided in the second power supply 20 to receive the data transmitted by the first main control circuit 130 to the second communication port 250 through the first communication port 160 through the second main control circuit 260 .
  • the first communication signal controls the first switching device 240 to be turned on according to the first communication signal, so that the first energy storage group 110 and the second energy storage group 210 are connected in parallel.
  • the first switching device 240 can also be disposed in the first power supply 10 (not shown in the figure). Specifically, it can be disposed in the path between the first energy storage group 110 and the first interface 120. The first main control circuit 130. By controlling the first switching device 240 to turn on, the first energy storage group 110 and the second energy storage group 210 are connected in parallel.
  • the working principle of the first switching device 240 disposed in the first power supply 10 is similar to that of the first switching device 240 disposed in the second power supply 20 and will not be described again here.
  • a switching circuit may also be provided in the first power supply 10.
  • the switching circuit is provided in the path between the first energy storage group 110 and the mains interface and between the second energy storage group 210 and the mains interface. The path between the electrical interfaces. In this way, when the switching circuit controls the first energy storage group 110 and the second energy storage group 210 to be connected to the mains interface, the first energy storage group 110 and the second energy storage group 210 can be connected in parallel. Power supply or parallel charging.
  • the above method can also be extended to other types of input or output interfaces.
  • Figure 4 is a schematic block diagram of a second power supply provided by an embodiment of the present application.
  • the second power supply 10 also includes a second main control circuit 260.
  • the second main control circuit 260 is connected to the second communication port 250 and the first switching device 240.
  • the second main control circuit 260 receives data through the second communication port 250.
  • the first communication signal sent by the first main control circuit 130 controls the first switching device 240 to be turned on according to the first communication signal, so that the first energy storage group 110 and the second energy storage group 210 are connected in parallel.
  • the first energy storage group 110 and the second energy storage group 210 connected in parallel are used to provide external power.
  • first power supply 10 and the second power supply 20 are connected, the first interface 120 and the second interface 220 are connected. If the first switching device 240 is disposed in the path where the second energy storage group 210 is connected to the second interface 220, The switching element is in the off state, then the first energy storage group 110 and the second energy storage group 210 are only connected, but in a non-parallel state.
  • the second energy storage group 210 can be controllably connected in parallel with the first energy storage group 110, so as to The first energy storage group 110 and the second energy storage group 210 connected in parallel are used to provide external power. This is because if the voltage difference between the first energy storage group 110 and the second energy storage group 210 is too large, a large current will be generated and the battery will be damaged. For example, the large current may burn out circuit components and lines, and for example, A large current may cause the temperature of the energy storage component to rise rapidly, thereby damaging the energy storage component. Therefore, the voltage difference between the two energy storage groups is controlled within the preset range to ensure safety in scenarios where the first energy storage group and the second energy storage group are connected in parallel for external power supply or are connected in parallel for simultaneous charging.
  • the second power supply 20 provided by the embodiment of the present application can also be used to supply power to the AC load using the parallel-connected first energy storage group 110 and the second energy storage group 210 when the mains power supply to the AC load fails.
  • FIG. 5 is a circuit schematic diagram of yet another embodiment of the second power supply in FIG. 1 .
  • the second power supply 20 also includes a mains interface 230 and a fourth interface 270 .
  • the mains interface 230 is connected to the fourth interface 270 and can be used to supply power to the AC load using the parallel-connected first energy storage group 110 and the second energy storage group 210 when the mains fails to supply power to the AC load.
  • the fourth interface 270 is connected to the third interface 140 of the first power supply 10
  • the third interface 140 is connected to the first energy storage group 110 of the first power supply 10.
  • FIG. 6 is a circuit schematic diagram of yet another embodiment of the first power supply in FIG. 1 .
  • FIG. 7 is a schematic structural diagram of an energy storage device composed of the second power supply in FIG. 5 and the first power supply in FIG. 6 .
  • connection method between the third interface 140 and the fourth interface 270 may include magnetic connection or pluggable connection.
  • the city power interface 230 can be connected to a household socket, and the first main control circuit 130 is used to charge the first energy storage group 110 and/or the second energy storage group 210 through the city power interface 230, or when the city power is used, In case of failure, indoor power supply can be provided through the city power interface 230. To improve the adaptability of energy storage equipment to usage scenarios.
  • the mains interface 230 can be connected to the first power supply 10 through the third interface 140, so that the electric energy provided by the parallel-connected first energy storage group 110 and the second energy storage group 210 can be transferred to the mains through the third interface 140.
  • the interface 230 outputs power to the AC load connected to the mains interface 230 .
  • Figure 6 is a schematic block diagram of a first power supply provided by an embodiment of the present application.
  • the first power supply 10 also includes a third interface 140 , which is connected to the first energy storage group 110 and used to transmit the parallel-connected first energy storage group 110 and the second energy storage group 110 to the second power supply 20 .
  • the energy group 210 can provide electric energy to supply power to the AC load through the mains interface 230 of the second power supply 20 .
  • the AC load may be various household electrical equipment connected to the mains power interface 230 .
  • the first main control circuit 130 can use the mains power to charge the first energy storage group 10 and/or the second energy storage group 20 when the mains power is normal.
  • the first main control circuit 130 can also be used to use the first energy storage group 110 and the second energy storage group 210 to supply power to the AC load in parallel according to the output control signal, or use the first energy storage group to supply power to the AC load.
  • the energy group 110 or the second energy storage group 210 supplies power to the AC load alone.
  • the output control signal includes but is not limited to the output control signal triggered by the user, such as the output control signal triggered by the user through buttons, touch, APP, etc., or the signal triggered when other preset conditions are reached, such as the battery status is normal. , and when the output interface is connected to electrical equipment, control signals, etc. can be output. Specifically, there is no specific limitation here.
  • the third interface can also be connected to the second power supply 20 for transmitting the electric energy connected to the mains power interface 230 of the second power supply 20 when the mains power interface 230 is normal, so as to realize the parallel connection of electric energy pairs based on the mains power interface 230.
  • the first energy storage group 110 and the second energy storage group 210 are charged later.
  • the first main control circuit 130 can be used to control the first energy storage when the mains power is normal and the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than a preset difference.
  • the group 110 and the second energy storage group 210 are connected in parallel to charge the parallel-connected first energy storage group 110 and the second energy storage group 210 through the mains interface 230 . Charging of the parallel-connected first energy storage group 110 and the second energy storage group 210 is realized based on the electric energy connected to the mains interface 230 .
  • the first main control circuit 130 is used to control the mains interface 230 to control the first energy storage group when the mains power is normal and the voltage difference between the first energy storage group 110 and the second energy storage group 210 is greater than a preset difference value.
  • the energy storage group with a smaller voltage value among the energy storage group 110 and the second energy storage group 210 is charged until the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than the preset difference.
  • the first main control circuit 130 can control the switching circuit of the first energy storage group 110 and the second energy storage group 210 with a smaller voltage value through the mains interface 230 by controlling the switching circuit connected to the mains interface 230 .
  • the energy storage group is charged.
  • Figure 8 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • the first power supply 10 also includes a switching circuit 113.
  • the fixed interface 114 of the switching circuit 113 is used to connect to the mains interface 230.
  • the switching circuit 113 is used to controllably connect the fixed interface to the mains power interface 230.
  • 114 switches the connection to the first energy storage group 110 so that the mains interface 230 is controllably connected to the first energy storage group 110 .
  • the fixed interface 114 of the switching circuit 113 can also be connected to the second energy storage group 210 so that the mains interface 230 can be controllably connected to the second energy storage group 210 .
  • the switching circuit 113 connects the fixed interface 114 to the first energy storage group and/or the second energy storage group based on the control signal of the first main control circuit.
  • the switching circuit 113 when charging using the mains interface, the switching circuit 113 is used to when the voltage value of the first energy storage group 110 is less than the voltage value of the second energy storage group 210, and the first energy storage group 110 and the second energy storage group 210 are charged.
  • the fixed interface 114 When the voltage difference of the group 210 is greater than the preset difference, the fixed interface 114 is controllably switched to connect to the first energy storage group, so that the mains interface 230 is controllably energized with the first energy storage group 110, through the mains.
  • the electrical interface 230 charges the first energy storage group 110 .
  • the switching circuit 113 can also be used when the voltage value of the second energy storage group 210 is less than the voltage value of the first energy storage group 110, and the voltage difference between the second energy storage group 210 and the first energy storage group 110 is greater than a predetermined value.
  • the fixed interface 114 is controllably switched to connect to the second energy storage group, so that the mains interface 230 is controllably energized with the second energy storage group 210, and the second energy storage group is connected through the mains interface 230. Group 210 is charged.
  • the switching circuit is used to adjust the voltage difference between the first energy storage group 110 and the second energy storage group 210
  • the switching circuit controllably switches the fixed interface to connect the first energy storage group 110 and the second energy storage group 210 with the larger voltage value to control the energy storage group with the larger voltage value to the outside world. Power is supplied until the voltage difference between the first energy storage group and the second energy storage group is less than the preset difference.
  • the first energy storage group 110 and the second energy storage group 210 are allowed to be connected in parallel for external power supply or charging.
  • the first energy storage group 110 and the second energy storage group 210 are charged in parallel or connected in parallel to provide external power, including: the first switching device 240 between the first energy storage group 110 and the second energy storage group 210 is closed, switching The circuit connects one of the first energy storage group 110 and the second energy storage group 210 to realize parallel charging or parallel external power supply of the first energy storage group 110 and the second energy storage group 210; or, the switching circuit connects the fixed interface 114 to the third energy storage group 110 and the second energy storage group 210.
  • the first energy storage group 110 and the second energy storage group 210 realizes circuit conduction with the first energy storage group 110 and the second energy storage group 210 respectively, thereby realizing the first energy storage group 110 and the second energy storage group.
  • Group 210 can be charged in parallel or connected in parallel for external power supply.
  • the switching circuit may include a single-pole double-throw switch, and the switching circuit may also include two switch units.
  • One switch unit controls the opening and closing of the path between the mains interface and the first energy storage group, and the other switch unit controls the mains power.
  • the opening and closing of the path between the interface and the second energy storage group, or the switching circuit may also include other circuit forms that implement the same function.
  • the fixed interface of the switching circuit can also be connected to other input and output interfaces, and the switching circuit controls the power supply of the first energy storage group 110 and the second energy storage group 210 to other input and output interfaces respectively.
  • the control logic can refer to the above. Example of mains interface.
  • the fixed interface 114 of the switching circuit 113 can be connected to the mains interface 230 by connecting an inverter circuit and/or a rectifier circuit.
  • Figure 9 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • the first power supply 10 also includes an inverter circuit 118 and a rectifier circuit 112 .
  • the fixed interface 114 of the switching circuit 113 is connected to the mains interface 230 through the inverter circuit 118 and the rectifier circuit 112 .
  • the inverter circuit 118 is connected to the first energy storage group 110 for converting the DC power provided by the first energy storage group 110 and/or the second energy storage group 210 into AC power to provide AC power. load power supply. Specifically, the inverter circuit 118 is connected to the AC output port 170 of the first power supply 110 and is used to convert the DC power provided by the first energy storage group 110 and/or the second energy storage group 210 into alternating current power, through the AC output port 170 . AC load power supply.
  • the AC output port 170 is connected to the first energy storage group 110 and/or the second energy storage group 210 through the inverter circuit 118, and is connected to the mains interface 230 for controllably connecting the first energy storage group 110 and the second energy storage group 210. /Or the electric energy provided by the second energy storage group 210 is provided to the load through the mains interface.
  • the rectifier circuit 112 is used to convert the AC power connected to the mains interface 230 into DC power to charge the first energy storage group 110 and/or the second energy storage group 210 .
  • the rectifier circuit 112 is connected to the AC input port 180 and is connected to the mains power interface 230 through the AC input port 180 .
  • the first power supply 10 can controllably switch the fixed interface 114 of the switching circuit 113 to connect to the first energy storage group 110 or the second energy storage group 210 through the switching circuit 113, so that the fixed interface 114 can pass through the rectifier circuit.
  • 112 is connected to the electric energy of the mains interface 230, so that the electric energy connected to the mains interface 230 can controllably charge the first energy storage group 110 and/or the second energy storage group 210.
  • the inverter circuit 118 and the rectifier circuit 112 can be implemented by a bidirectional inverter circuit.
  • the working principle of the bidirectional inverter circuit is similar to that of the inverter circuit and the rectifier circuit, and will not be described in detail here.
  • Figure 10 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • the first power supply 10 further includes a second switching device 117 .
  • the second switching device 117 is disposed in the external power supply path of the first energy storage group 110 .
  • the first main control circuit 130 controls the state of the second switching device 117 to allow the first energy storage group 110 to provide external power.
  • the second switching device 117 can be disposed between the AC output port 170 and the mains power interface 230 to controllably connect the AC output port 170 to the mains power interface 230, so that the inverter circuit 118 and the mains power interface 230 can be connected.
  • the AC output port 170 of the first power supply 110 is connected to convert the DC power provided by the first energy storage group 110 and the second energy storage group 210 into AC power, and supplies power to the AC load through the AC output port 170 .
  • the state of the second switching device 117 includes on or off. It should be understood that when the second switching device 117 is on, the AC output port 170 is connected to the mains interface 230; when the second switching device 117 is off, the AC output port 170 is disconnected from the mains interface 230. .
  • the first main control circuit 130 is used to control the second switching device 117 to conduct when the mains power fails, so that the mains interface 230 is connected to the AC output port 170 to pass the first energy storage group 110 and/or Or the second energy storage group 210 provides AC power to the outside.
  • the first main control circuit 130 can be connected to the first energy storage group 110 by controlling the switching circuit 133, and by controlling the second switching device 117 to be turned on, so that the mains interface 230 is connected to the AC output port 170, so as to pass the third An energy storage group 110 provides AC power to the outside world.
  • the first main control circuit 130 can be connected to the second energy storage group 210 by controlling the switching circuit 133, and by controlling the second switching device 117 to be turned on, so that the mains interface 230 is connected to the AC output port 170, so as to pass through the second
  • the energy storage group 210 provides AC power to the outside world.
  • the first main control circuit 130 can also control the first switching device 240 to conduct when the switching circuit is connected to the first energy storage group 110 or the second energy storage group 210, so that the first energy storage group 110 and the second energy storage group 210 are turned on.
  • the two energy storage groups 210 are connected in parallel to provide AC power to the outside through the first energy storage group 110 and the second energy storage group 210 .
  • the first main control circuit 130 is used to disconnect the mains interface 230 from the AC output port 170 by controlling the port of the second switching device 117 when the mains power is normal, so as to supply external power through the mains interface 230 .
  • Figure 11 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • the second switching device 117 is also disposed on the charging path of the first energy storage group 110, and the first main control circuit 130 is also used to control the first energy storage group by controlling the state of the second switching device 117. 110 access charging.
  • the second switching device 117 is also disposed between the AC input port 180 and the mains interface 230 .
  • the AC input port 180 can transmit the AC power connected to the mains interface 230 to the rectifier circuit 112, and the rectifier circuit 112 converts the corresponding AC power into DC power to power the first energy storage group 110 and /or the second energy storage group 210 is charged.
  • the first main control circuit 130 is used to, if the mains power is normal, control the second switching device 117 to conduct, so that the mains interface 230 is connected to the AC input port 180, so that the mains interface 230 is connected to the AC power. It is transmitted to the rectifier circuit 112, and the rectifier circuit 112 converts the corresponding alternating current into direct current to charge the first energy storage group 110 and/or the second energy storage group 210.
  • the structure of the switching circuit 113 connected to the second energy storage group 210 is not shown. In practical applications, as shown in Figure 10, the switching circuit 113 also needs to be connected to the second energy storage group 210. connection to achieve charging of the first energy storage group 110 and/or the second energy storage group 210 with alternating current connected through the mains interface 230 .
  • the first power supply is provided with an interface for connecting the switching circuit and the second energy storage group.
  • the first power supply includes a ninth interface, and the switching circuit 113 is connected to the ninth interface.
  • the second power supply includes a tenth interface, and the tenth interface is connected to In the second energy storage group, when the first power supply is connected to the second power supply, the ninth interface is connected to the tenth interface, thereby realizing the connection between the switching circuit of the first power supply and the second energy storage group.
  • the first energy storage group 110 can also be charged through the charging circuit 150 through external solar energy or a charger.
  • the first main control circuit 130 can also determine whether the mains power is faulty through the mains power status signal of the AC output port 180 .
  • the first power supply 10 includes an inverter circuit 118 and a rectifier circuit 112 .
  • the DC power provided by the first energy storage group 110 and/or the second energy storage group 210 is converted into AC power through the inverter circuit 118 to realize power supply to the AC load; the power provided by the mains interface 230 is converted into DC power through the rectifier circuit 112, Charging of the first energy storage group 110 and/or the second energy storage group 210 is implemented.
  • the first power supply 10 may also include a bidirectional inverter circuit (not shown in the figure).
  • the first main control circuit 130 can also be used to connect the mains interface 230 to the bidirectional inverter circuit through the second switching device 117 if the mains power is normal; and to connect the mains interface 230 to the bidirectional inverter circuit through the second switching device 117 if the mains power fails.
  • Connected to a bidirectional inverter circuit wherein, the bidirectional inverter circuit is connected to both the AC output port 170 and the AC input port 180, and can be connected to the first energy storage group 110 through the bidirectional inverter circuit to provide energy to the third energy storage group through the AC output port 170.
  • An energy storage group 110 is charged; it can be used to provide AC power to the load through the AC input port 180 .
  • the second switching device 117 may include an AC switch or other forms of switching units.
  • the first main control circuit 130 can also control the first energy storage group 110 and the second energy storage group 210 to charge each other.
  • the first main control circuit 130 can realize mutual charging between the first energy storage group 110 and the second energy storage group 210 by controlling the DC conversion circuit. (Right 11)
  • the first main control circuit 130 can control the first energy storage group 110 and the second energy storage group 210 when the voltage difference between the first energy storage group 110 and the second energy storage group 210 is greater than the preset difference value.
  • the energy storage group with a larger voltage value among the energy storage groups 210 charges the energy storage group with a smaller voltage value until the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than the preset difference.
  • the preset difference value may be a constant that is preset according to actual needs, such as 0.3, etc.
  • the The second energy storage group 210 charges the first energy storage group 110 .
  • the first main control circuit 130 can also, when the mains power is normal, if the voltage value of the first energy storage group 110 is greater than the voltage value of the second energy storage group 210, and the first energy storage group 110 and the second energy storage group 210 When the voltage difference of the energy group 210 is greater than the preset difference, the first energy storage group 110 is controlled to charge the second energy storage group 210 until the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than Default difference.
  • Figure 12 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • the first power supply 10 further includes a fifth interface 141 .
  • the fifth interface 141 is connected to the first energy storage group 110 and the second power supply 20 , and can transmit the electric energy provided by the first energy storage 110 to the second power supply 20 through the fifth interface 141 to realize the control of the second energy storage group 210 Charge.
  • the fifth interface 141 can transmit the electric energy provided by the first energy storage group 110 to the second energy storage group 210 of the second power supply 20 through connection with the DC conversion circuit of the second power supply 20 .
  • the second power supply 20 may include a DC conversion circuit connected to the second energy storage group 210 .
  • the fifth interface 141 is an independent interface from the first interface 120. In some other optional implementations of this application, the fifth interface 141 can also be integrated into the first interface 120. .
  • Figure 13 is a schematic block diagram of a second power supply provided by yet another embodiment of the present application.
  • the second power supply 20 also includes a first DC conversion circuit 280.
  • the first DC conversion circuit 280 is connected to the fifth interface 141 of the first power supply 10 and the second energy storage group 210. , the electric energy provided by the first energy storage group 110 through the fifth interface 141 can be converted and then charged to the second energy storage group 210 .
  • the first main control circuit 130 of the first power supply 10 may transmit the second communication signal to the second communication port 250 of the second power supply 20 through the first communication port 160 .
  • the second communication port 250 is connected to the second main control circuit 260 .
  • the first DC conversion circuit 280 may be connected to the fifth interface 141 through the seventh interface.
  • the seventh interface is not shown in the figure.
  • the second power supply 20 can receive the second communication signal through the second main control circuit 260, and the second main control circuit 260 controls the first DC conversion circuit 280 to operate according to the received second communication signal, so that the first storage
  • the energy group 110 can charge the second energy storage group 210 .
  • the second communication signal may be transmitted to the second main control circuit 260 through the second communication port 250 .
  • the first power supply 10 can transmit the electric energy provided by the first energy storage group 110 to the first DC conversion circuit 280 through the fifth interface 141, and at the same time, the second main control circuit of the second power supply 20 260 receives the second communication signal transmitted by the first main control circuit 130 of the first power supply 10 through the second communication port 250, and controls the first DC conversion circuit 280 to transmit to the first energy storage group 110 according to the second communication signal. The electrical energy is converted and then charged to the second energy storage group 210.
  • the first DC conversion circuit 280 may include a DC-DC step-down circuit.
  • the DC-DC step-down circuit performs voltage conversion on the electric energy transmitted by the first energy storage group 110 and outputs it to the second energy storage group 210 , to realize charging of the first energy storage group 110 to the second energy storage group 210 .
  • the first DC conversion circuit 280 can also implement constant current output.
  • Figure 14 is a schematic block diagram of a first power supply provided by yet another embodiment of the present application.
  • the first power supply 10 may also include a sixth interface 142 .
  • the sixth interface 142 is connected to the first energy storage group 110 and the second power supply 20 , and can transmit the electric energy provided by the second energy storage group 210 to the first energy storage group 110 through the sixth interface 142 to realize the control of the first energy storage group 110 .
  • the sixth interface 142 and the fifth interface 141 are integrated in the first interface 120 .
  • the sixth interface 142 and the fifth interface 141 are integrated into the first interface 120 .
  • the fifth interface 141 may also be an interface independent of the first interface 120 .
  • the sixth interface 142 is connected to the first energy storage group 110 and the second DC conversion circuit 212 of the second power supply 20. After converting the electric energy provided by the second energy storage group 210 through the second DC conversion circuit 212, The electric energy provided by the second energy storage group 210 is transmitted to the first energy storage group 110 through the sixth interface 142 to charge the first energy storage group 110 .
  • the second power supply 20 further includes a second DC conversion circuit 212 .
  • the second DC conversion circuit 212 is connected to the second energy storage group 210 and is used to convert the electric energy provided by the second energy storage group 210 and then output it to the first power supply 10 so that the second energy storage group 210 can supply power to the first energy storage group 210 .
  • the second DC conversion circuit 212 may be connected to the sixth interface 142 through an eighth interface. Specifically, the eighth interface is not shown in FIG. 15 .
  • the first power supply 10 can transmit the electric energy provided by the first energy storage group 110 to the second DC conversion circuit 212 through the sixth interface 142, and at the same time, the second power supply 20 receives the electric energy from the first power supply 10 through the first main control circuit. 130, and controls the operation of the second DC conversion circuit 212 according to the third communication signal, so that the second energy storage group 210 can charge the first energy storage group 110.
  • the second power supply 20 can receive the third communication signal transmitted by the first power supply 20 through the second communication port 250, and the second main control circuit 260 controls the second DC conversion circuit 212 according to the third communication signal. Work to enable the second energy storage group 210 to charge the first energy storage group 110 .
  • the second communication port 250 is connected to the first communication port 160 of the first power supply 10 and the second main control circuit 260 .
  • the second main control circuit 260 controls the second storage device according to the third communication signal transmitted by the second communication port 250 .
  • the second DC conversion circuit 212 may also be a DC-DC step-down circuit. Specifically, the DC-DC step-down circuit performs voltage conversion on the electric energy transmitted by the second energy storage group 210 and outputs it to the first energy storage group 110 , enabling the second energy storage group 210 to charge the first energy storage group 110 .
  • the second DC conversion circuit 210 can also implement constant current output.
  • the first main control circuit 130 is also used to when the mains power is normal, the voltage value of the first energy storage group 110 is less than the voltage value of the second energy storage group 210, and the first energy storage group 110 When the voltage difference between the first energy storage group 110 and the second energy storage group 210 is greater than the preset difference, the first energy storage group 110 is charged through the mains interface 230 until the first energy storage group 110 and the second energy storage group 210 The voltage difference is less than the preset difference.
  • the process of charging the first energy storage group 110 through the mains interface 230 may be referred to the detailed description in the previous embodiment, and will not be described again here.
  • the fifth interface 141 and the first interface 120 can be integrated into the same interface, and the seventh interface and the second interface 220 can also be integrated into the same interface.
  • the sixth interface 142 may be integrated into the same interface as the first interface 120 and/or the fifth interface 141, and the eighth interface may be integrated into the same interface as the second interface 220 and/or the seventh interface.
  • the first DC conversion circuit 280 when it does not need to work, it can be in a closed state to reduce power consumption.
  • the second main control circuit 260 can control the first DC conversion circuit 280 to turn off or on, or the first main control circuit 130 controls the first DC conversion circuit 280 to turn off or on through a communication signal.
  • the first main control circuit 130 of the first power supply 10 and/or the second main control circuit 260 of the second power supply 20 can detect the disconnection, correspondingly, The second main control circuit 260 controls the first DC conversion circuit 280 to stop working, or the first main control circuit 230 can send a control signal so that the second main control circuit 260 controls the first DC conversion circuit according to the received control signal.
  • the conversion circuit 280 stops working.
  • the first energy storage group 110 does not need to charge the second energy storage group 210.
  • the first main control circuit 130 sends a communication signal to the second power supply 20 to control the first DC conversion circuit 280 to stop working.
  • the above is only an example, and the control strategy for opening and closing the first DC circuit 280 can be adjusted according to actual needs.
  • the first DC conversion circuit 280 can also be provided in the first power supply 10 .
  • the corresponding working principle is the same as that provided in the second power supply 20 .
  • the working principle is the same and will not be described again here.
  • the first DC conversion circuit 280 is disposed in the second power supply 20 to improve the portability and portability of the first power supply 10 when used alone outdoors.
  • the energy storage device provided by the embodiment of the present application is detachably connected through the first power supply and the second power supply, so that the first power supply and the second power supply can supply power separately, and can connect to the second power supply through the first interface.
  • the first energy storage group and the second energy storage group are connected in parallel for external power supply, so as to improve the flexibility of power supply of the energy storage device and its adaptability to application scenarios.
  • Figure 16 is a schematic diagram of the interface connection between the first power supply and the second power supply provided by an embodiment of the present application.
  • first interface, the sixth interface, the fifth interface and the first communication port are all integrated into one interface.
  • the second interface, the seventh interface, the eighth interface and the second communication port are all integrated into one interface. To simplify the connection method of the first power supply and the second power supply.
  • the first power supply 10 includes a first interface 120
  • the second power supply 20 includes a second interface 220 .
  • the first communication port 160, the first positive terminal 115 and the first negative terminal 116 are integrated in the first interface 120
  • the second communication port 250, the second positive terminal 213 and the second negative terminal are integrated in the second interface 220.
  • the first power supply 10 and the second power supply 20 are connected, the first communication port 160 and the second communication port 250 are connected, the first positive terminal 115 and the second positive terminal 214 are connected, and the first negative terminal 116 and the second negative terminal 214 are connected. connect.
  • the first communication port 160 is connected to the first main control circuit 130 , the first positive terminal 115 is connected to the positive electrode of the first energy storage group 110 , and the first negative terminal 116 is connected to the negative electrode of the first energy storage group 110 .
  • the second communication port 250 is connected to the second main control circuit 260, and is connected to the first DC conversion circuit 280, the second DC conversion circuit 212 and the first switching device 240 through the second main control circuit 260.
  • the second positive terminal 213 is respectively
  • the second negative terminal 214 is connected to the positive electrode of the first DC conversion circuit 280 , the positive electrode of the second DC conversion circuit 212 and the positive electrode of the second energy storage group 210 respectively.
  • the negative electrode of the conversion circuit 212 and the negative electrode of the second energy storage group 210 are connected.
  • the first interface 120 and the second interface 220 are connected, so that the first communication port 160 and the second communication port 250 are connected, the first DC conversion circuit 280 and the second DC conversion circuit are connected.
  • the circuits 212 are respectively connected to the first energy storage group 110 and the second energy storage group 210 .
  • By controlling the conduction of the first DC conversion circuit 280 and the second DC conversion circuit 212 mutual charging of the first energy storage group 110 and the second energy storage group 210 is achieved.
  • the first switching device 240 By turning on the first switching device 240, the first energy storage group 110 and the second energy storage group 210 are connected in parallel, and then the first energy storage group 110 and the second energy storage group 210 are controlled to supply external power according to power supply needs.
  • the second DC conversion circuit 212 can also be provided in the first power supply 10.
  • the second DC conversion circuit 212 is provided in the second power supply 20 to improve the performance of the first power supply 10 alone outdoors. Lightness of use and portability.
  • the second DC conversion circuit 212 when it does not need to work, it can be in a closed state to reduce power consumption.
  • the second main control circuit 260 can control the second DC conversion circuit 212 to turn off or on, or the first main control circuit 130 controls the second DC conversion circuit 212 to turn off or on through a communication signal.
  • the first main control circuit 130 of the first power supply 10 and the second main control circuit of the second power supply 20 The control circuit 260 can detect that the communication signal is disconnected.
  • the second main control circuit 260 controls the second DC conversion circuit 212 to stop working, or the first main control circuit 130 can send a control signal so that the second main control circuit 260 According to the received control signal, the second DC conversion circuit 212 is controlled to stop working.
  • the second energy storage group 210 does not need to charge the first energy storage group 110.
  • the first main control circuit 130 sends a communication signal to the second power supply 20 to control the second DC conversion circuit 212 to stop working.
  • the above is only an example, and the control strategy for turning on and off the second DC conversion circuit 212 can be adjusted according to actual needs. Please refer to Figure 17.
  • Figure 17 is a schematic diagram of the interface connection between the first power supply and the second power supply provided by another embodiment of the present application.
  • the first power supply 10 may also include a switching circuit 113.
  • the switching circuit 113 connects the second energy storage group 210, and the first switching device 280 realizes the parallel connection between the first energy storage group 110 and the second energy storage group 210, and is controlled by the switching circuit 113.
  • the first energy storage group 110 and/or the second energy storage group 210 are connected to the mains interface 230 .
  • the working principles of other structures in Figure 17 can be explained with reference to Figure 16 .
  • the circuit structures of FIG. 16 and FIG. 17 can also be combined.
  • the power supply system composed of the first power supply 10 and the second power supply 20 can include a first DC conversion circuit, a second DC conversion circuit and a switching circuit.
  • the first main control circuit 130 is configured to operate when the voltage of the first energy storage group 110 is greater than the preset voltage value, and the voltage value of the first energy storage group 110 is greater than the voltage value of the second energy storage group 210. When the difference is preset, the first energy storage group 110 is controlled to charge the second energy storage group 210 .
  • the first main control circuit 130 is used to charge the first energy storage group 110 to the second energy storage group 210 until the voltage difference between the first energy storage group 110 and the second energy storage group 210 is less than a preset value. If there is a difference, stop the first energy storage group 110 from charging the second energy storage group 210, and control the mains interface 230 to charge the first energy storage group 110 until the power of the first energy storage group 110 is greater than the preset power.
  • the preset power level can be full power, 90% power or 95% power, etc.
  • the power of the first energy storage group 110 can be effectively guaranteed by controlling the mains interface 240 to charge the first energy storage group 110. of recovery.
  • the first main control circuit 130 is used to control the mains interface 240 to control the first energy storage device when the voltage difference between the first energy storage group 110 and the second energy storage group 210 exceeds a preset range. The energy storage group with a lower voltage value among the group 110 and the second energy storage group 210 is charged.
  • the first main control circuit 230 is used to control the first energy storage group 110 and the second energy storage group 210 when the voltage difference between the first energy storage group 110 and the second energy storage group 210 is within a preset range.
  • the two energy storage groups 210 are connected in parallel, and the parallel-connected first energy storage group 110 and the second energy storage group 210 are simultaneously charged through the mains interface 240 .
  • the above embodiments are exemplary in the process of charging the first energy storage group 110 and/or the second energy storage group 210 by controlling the mains interface 240 in the second power supply 20 through the first main control circuit 130 .
  • the first main control circuit 130 can also be used to control the charging interface circuit 111 in the first power supply 10 or the charging interface circuit 111 in the second power supply 20 to realize the first energy storage group 110 and/or the third energy storage group 110 .
  • the specific control principle of charging the second energy storage group 210 is the same as the above-mentioned principle of controlling the mains interface 240 in the second power supply 20 for charging, and will not be described again here.
  • the first power supply may also include an external power supply interface (not shown in the figure), and the external power supply interface may include a DC output interface, a vehicle emergency start output interface, a cigarette lighter interface, a type- At least one of the c interface or the USB interface is used to provide corresponding power to the load.
  • the vehicle emergency start output interface can be connected to the vehicle through the battery clip to achieve the emergency start function.
  • DC output interfaces are distinguished by voltage and may include one or more of a 5V output interface, a 12V output interface, a 16V output interface, a 19V output interface or a 24V output interface. The examples listed here are only examples. Those skilled in the art can refer to Expand according to actual needs.
  • connection in the embodiments of this application may include direct connection or indirect connection.
  • the external power supply interface is connected to the first energy storage group.
  • the connection includes direct connection or indirect connection through one or more circuit modules such as switching circuit, conversion circuit, inverter or protection circuit.
  • the first energy storage group The group can provide power to external loads through the external power supply interface.
  • the second power supply provided by the embodiment of the present application may also include at least one of a DC output interface, a cigarette lighter interface, a type-c interface or a USB interface. Specifically, this is not limited in the embodiment of the present application. .
  • the energy storage device provided by the embodiment of the present application is detachably connected through the first power supply and the second power supply, so that the first power supply and the second power supply can supply power independently, and can connect to the second power supply through the first interface.
  • the first energy storage group and the second energy storage group are connected in parallel for external power supply, so as to improve the power supply flexibility of the power supply and improve the adaptability of the energy storage equipment to application scenarios.
  • This application also provides an energy storage power supply control method for controlling the parallel connection of the first energy storage group and the second energy storage group when the first power supply and the second power supply are connected, so as to realize the utilization of the parallel-connected first energy storage group. and the second energy storage group for external power supply.
  • the first power supply is a power supply that is convenient for users to carry outdoors for power supply
  • the second power supply is a power supply that is placed indoors for power supply. By arranging a mains power interface in the second power supply, the second power supply can be conveniently charged and used to provide power indoors.
  • FIG. 18 is a schematic flowchart of the implementation of an energy storage power supply control method provided by an embodiment of the present application.
  • this energy storage power supply control method can be specifically applied to the main control circuit of the first power supply provided in the above embodiment.
  • the following will introduce the energy storage device control method with the first power supply.
  • the energy storage power supply The control method is not limited to the first power supply provided by the above embodiment.
  • the energy storage power supply control method can also be implemented by the main control circuit of the second power supply or other control equipment, and the details are not limited here.
  • the energy storage power supply control method includes steps S1110 to S1112. Details are as follows:
  • the first power supply and the second power supply are connected. Specifically, when the first interface of the first power supply and the second interface of the second power supply are connected, the first energy storage The group is connected in parallel with the second energy storage group.
  • the method before connecting the first energy storage group and the second energy storage group in parallel, the method further includes: controlling the voltage difference between the first energy storage group and the second energy storage group to be within a preset range. In this way, it can be avoided that when the first energy storage group and the second energy storage group are connected in parallel, the voltage difference between the two energy storage groups is too large and a large current is generated, which damages the product. For example, the large current may burn out circuit components and lines. For another example, a large current may cause the temperature of the energy storage component to rise rapidly, thereby damaging the energy storage component. Therefore, controlling the pressure difference between the two energy storage groups within a preset range and then connecting them in parallel can improve the safety of electricity consumption and extend the service life of the product.
  • charging of the first energy storage group or the second energy storage group can be controlled.
  • a charging interface circuit can be provided on the first power supply or a charging interface circuit can be provided on the second power supply, and charging of the first energy storage group or the second energy storage group is achieved by connecting the charging interface circuit to an external power supply.
  • a mains power interface is provided in the second power supply.
  • the first energy storage group or the second energy storage group is charged through the mains interface until the voltage difference between the first energy storage group and the second energy storage group is within a preset range.
  • the first energy storage group and/or the second energy storage group are charged through the mains interface.
  • the mains interface is controlled to adjust the voltage values of the first energy storage group and the second energy storage group.
  • the smaller energy storage group is charged until the voltage difference between the first energy storage group and the second energy storage group is less than the preset difference.
  • the first energy storage group and the second energy storage group are connected in parallel to pass the mains interface. Charge the first energy storage group and the second energy storage group connected in parallel.
  • the voltages in the first energy storage group and the second energy storage group are controlled.
  • the energy storage group with a larger voltage charges the energy storage group with a smaller voltage until the voltage difference between the first energy storage group and the second energy storage group is less than the preset difference.
  • the second communication signal is transmitted to the second power supply, so that the second power supply controls the operation of the first DC conversion circuit of the second power supply according to the second communication signal, so that the first energy storage group supplies power to the second energy storage group.
  • the energy storage group is charged; and/or, by transmitting a third communication signal to the second power supply, so that the second power supply controls the operation of the second DC conversion circuit of the second power supply according to the third communication signal, so that the second energy storage group charges the first energy storage group. Charging the energy storage group.
  • the first energy storage group can also be charged through the charging interface circuit until the voltage of the first energy storage group is greater than the preset voltage. If the voltage of the first energy storage group is greater than the second energy storage group The voltage of the first energy storage group exceeds the preset difference, then the first energy storage group is charged to the second energy storage group until the voltage of the first energy storage group is greater than the voltage of the second energy storage group and does not exceed the preset difference, and then the above charging is repeated. The circuit charges the first energy storage group, and then charges the first energy storage group to the second energy storage group until both the first energy storage group and the second energy storage group are fully charged. At this time, the first energy storage group is charged. The energy storage group and the second energy storage group are connected in parallel.
  • any charging method that can make the first energy storage group and the second energy storage group reach voltage equilibrium before being connected in parallel is within the scope of protection of this application.
  • S1112 use the first energy storage group and the second energy storage group connected in parallel to provide external power supply.
  • the second power supply is connected to the first power supply.
  • the first energy storage group and the second energy storage group connected in parallel can provide direct current through the DC output interface, or can provide AC through the AC output interface, or can also provide through the vehicle emergency start output interface, type-c interface, point The cigarette smoker interface or USB interface provides power, etc.
  • the charging interface circuit can also supply power to the AC load by controlling the charging interface circuit or the mains interface. Specifically, after the first energy storage group and the second energy storage group are connected in parallel, if a power supply failure of the mains to the AC load is detected, the parallel-connected first energy storage group and the second energy storage group are controlled to pass through the second power supply. The mains interface supplies power to the AC load.
  • the charging interface circuit can also be controlled so that the parallel-connected first energy storage group and the second energy storage group supply power to the AC load through the AC output port of the first power supply.
  • the first energy storage group and the second energy storage group are used to supply power to the AC load in parallel, or the first energy storage group or the second energy storage group is used to supply power to the AC load alone.
  • the mains interface when the output control signal is detected, the mains interface is controlled to use the first energy storage group and the second energy storage group to supply power to the AC load in parallel, or to use the first energy storage group or the second energy storage group to supply power to the AC load.
  • the group supplies power to the AC load individually.
  • the first energy storage group and the second energy storage group are connected in parallel to utilize the parallel-connected third energy storage group.
  • the first energy storage group and the second energy storage group provide external power supply.
  • the energy storage with the larger voltage value in the first energy storage group and the second energy storage group is controlled.
  • the group supplies power to the outside until the voltage difference between the first energy storage group and the second energy storage group is less than the preset difference.
  • the energy storage power supply control method provided in the above embodiments includes: when detecting that the first interface of the first power supply and the second interface of the second power supply are connected, causing the first energy storage group and the second power supply to be connected.
  • the energy storage groups are connected in parallel; the parallel-connected first energy storage group and the second energy storage group are used to provide external power; wherein, when the first interface and the second interface are connected, the second power supply and The first power connection.
  • the energy storage power supply control method provided in this embodiment realizes the utilization of parallel connection by connecting the first energy storage group and the second energy storage group in parallel when it is detected that the first interface of the first power supply and the second interface of the second power supply are connected.
  • the last first energy storage group and the second energy storage group supply power to the outside world. This enables the first power supply to be connected to the second power supply for external power supply, thereby improving the adaptability of the energy storage device to application scenarios.
  • each function implemented by the first main control circuit can be executed by one processing module, or can be jointly implemented by multiple physically existing processing modules.
  • the above processing module can be implemented in the form of hardware, or can be implemented in the form of software function modules. Form realization.
  • the first main control circuit may include one or more of a microcontroller unit (Microcontroller Unit; MCU), a general-purpose microprocessor or other programmable logic devices, hardware components, etc., as long as it can realize the control function, it belongs to the implementation of this application. Example of protection scope.
  • the second main control circuit can be implemented by one processing module, or can be implemented by multiple physically existing processing modules.
  • the above processing module can be implemented in the form of hardware or software function modules.
  • the first main control circuit may include one or more of a microcontroller unit (Microcontroller Unit; MCU), a general-purpose microprocessor or other programmable logic devices, hardware components, etc., as long as it can realize the control function, it belongs to the implementation of this application. Example of protection scope.

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Abstract

本申请提供一种第一电源及其控制方法、第二电源和储能设备,其中,第一电源能够与第二电源可拆卸连接,第一电源包括:第一储能组;第一接口,连接第一储能组,用于与第二电源的第二接口连接,第二接口与第二电源的第二储能组连接;第一主控电路,用于使第一储能组和第二储能组并联,以利用并联后的第一储能组和第二储能组对外供电。通过第一电源与第二电源可拆卸连接,使得第一电源和第二电源能够单独供电,并能够在通过第一接口与第二电源的第二接口连接时,使得第一储能组和第二储能组实现并联对外供电,旨在提高储能设备对应用场景的适应性。

Description

第一电源及其控制方法、第二电源和储能设备 技术领域
本申请涉及电源技术领域,尤其涉及一种第一电源及其控制方法、第二电源和储能设备。
背景技术
目前,为了满足用户在不同应用场景下对电量的需求,出现了多种储能设备。比如常见的户外储能电源和室内储能电源。其中,户外储能电源为了便于携带,使得储能容量和输出功率均受限,导致在室内使用时无法满足电量需求。而室内储能电源考虑到用户对电量的需求,其对应的体积通常较大,不利于户外携带。
技术问题
现有的储能设备对应用场景的适应性较差。
技术解决方案
本申请的主要目的在于提供一种第一电源、第二电源和储能设备,旨在提高储能设备对应用场景的适应性。
第一方面,本申请提供一种第一电源,所述第一电源能够与第二电源可拆卸连接,所述第一电源包括:
第一储能组;
第一接口,所述第一接口连接所述第一储能组,所述第一接口用于与所述第二电源的第二接口连接,所述第二接口与所述第二电源的第二储能组连接;
第一主控电路,用于使所述第一储能组和所述第二储能组并联,以利用并联后的所述第一储能组和所述第二储能组对外供电。
第二方面,本申请提供一种第一电源,所述第一电源能够与第二电源可拆卸连接,所述第一电源包括:
第一储能组;
第一接口,所述第一接口连接所述第一储能组,所述第一接口用于与所述第二电源的第二接口连接,以使得所述第一储能组可控地和所述第二电源的第二储能组并联,基于并联后的所述第一储能组和所述第二储能组对外供电。
第三方面,本申请提供一种第二电源,所述第二电源与第一电源可拆卸连接,所述第二电源包括:
第二储能组;
第二接口,所述第二接口连接所述第二储能组,所述第二接口用于与所述第一电源的第一接口连接,所述第一接口与所述第一电源的第一储能组连接;
在所述第二接口与所述第一接口连接时,所述第二储能组能够可控地与所述第一电源的第一储能组并联,以利用并联后的所述第一储能组和所述第二储能组对外供电。
第四方面,本申请提供一种储能电源控制方法,应用于上述第一方面所述的第一电源;所述方法包括:
在检测到所述第一电源的第一接口和所述第二电源的第二接口连接时,使所述第一储能组和所述第二储能组并联;
利用并联后的所述第一储能组和所述第二储能组对外供电;
其中,在所述第一接口与所述第二接口连接时,所述第二电源与所述第一电源连接。
第五方面,本申请提供一种储能设备,包括:
如上第一方面所述的第一电源;
第二电源,包括第二储能组和第二接口,所述第二接口与所述第二储能组电连接;
其中,所述第二电源能够与所述第一电源可拆卸连接,在所述第二电源与所述第一电源连接时,所述第二接口与所述第一电源的第一接口连接。
第六方面,本申请提供一种储能设备,其特征在于,包括:
第一电源;
如上第二方面所述的第二电源;
其中,所述第一电源能够与所述第二电源可拆卸连接,在所述第一电源与所述第二电源连接时,所述第一电源的第一接口与所述第二电源的第二接口连接。
有益效果
本申请提供的第一电源及其控制方法、第二电源和储能设备,其中,第一电源能够与第二电源可拆卸连接,第一电源包括:第一储能组;第一接口,连接第一储能组,用于与第二电源的第二接口连接,第二电源的第二接口与第二电源的第二储能组连接;第一主控电路,用于使第一储能组和第二储能组并联,以利用并联后的第一储能组和第二储能组对外供电。通过第一电源与第二电源可拆卸连接,使得第一电源和第二电源能够单独供电,并能够在通过第一接口与第二电源的第二接口连接时,使得第一储能组和第二储能组实现并联对外供电,旨在提高储能设备对应用场景的适应性。
附图说明
为了更清楚地说明本申请实施例技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请一实施例提供的储能设备的示意性框图;
图2是本申请另一实施例提供的储能设备的示意性框图;
图3是本申请又一实施例提供的储能设备的示意性框图;
图4是本申请一实施例提供的第二电源的示意性框图;
图5是本申请又一实施例提供的第二电源的示意性框图;
图6是本申请又一实施例提供的第一电源的示意性框图;
图7是图5中的第二电源与图6中的第一电源组成的储能设备的示意性框图;
图8是本申请又一实施例提供的第一电源的示意性框图;
图9是本申请又一实施例提供的第一电源的示意性框图;
图10是本申请又一实施例提供的第一电源的示意性框图;
图11是本申请又一实施例提供的第一电源的示意性框图;
图12是本申请又一实施例提供的第一电源的示意性框图;
图13是本申请又一实施例提供的第二电源的示意性框图;
图14是本申请又一实施例提供的第一电源的示意性框图;
图15是本申请又一实施例提供的第二电源的示意性框图;
图16是本申请一实施例提供的第一电源与第二电源的接口连接示意图;
图17是本申请又一实施例提供的第一电源与第二电源的接口连接示意图;
图18是本申请一实施例提供的储能电源控制方法的实现流程示意图;
附图标记说明:
100、储能设备;
10、第一电源;20、第二电源;
110、第一储能组;120、第一接口;130、第一主控电路;140、第三接口;141、第 五接口;142、第六接口;160、第一通信口;170、AC输入口;180、AC输出口;111、充电接口电路;112、整流电路;113、切换电路;114、固定接口;115、第一正端子;116、第一负端子;117、第二开关器件;118、逆变电路;112、整流电路;
210、第二储能组;220、第二接口;230、市电接口;240、第一开关器件;250、第二通信口;260、第二主控电路;270、第四接口;280、第一直流变换电路;212、第二直流变换电路;213、第二正端子;214、第二负端子。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
附图中所示的流程图仅是示例说明,不是必须包括所有的内容和操作/步骤,也不是必须按所描述的顺序执行。例如,有的操作/步骤还可以分解、组合或部分合并,因此实际执行的顺序有可能根据实际情况改变。
下面结合附图,对本申请的一些实施方式作详细说明。在不冲突的情况下,下述的实施例及实施例中的特征可以相互组合。
请参照图1,图1为本申请一实施例提供的储能设备的示意性框图。由图1可知,该储能设备100包括第一电源10和第二电源20。其中,第一电源10和第二电源20可拆卸连接,在第一电源10与第二电源20连接时,第一电源的第一接口120与第二电源的第二接口220连接。
由图1可知,第一电源10包括第一储能组110、第一接口120和第一主控电路130;第二电源20包括第二储能组210和第二接口220。
其中,第一接口120用于与第二电源20的第二接口220连接,第二接口220与第二电源20的第二储能组210连接。第一主控电路130,用于使第一储能组110和第二储能组210并联,以利用并联后的第一储能组110和第二储能组210对外供电。以提高储能设备100对供电场景的适应性。具体地,第一电源10为便携式的户外储能电源,第二电源20为适合家庭、企业、商铺等多种场景固定放置使用的室内储能电源。当用户需要使用户外电源时,可以直接携带便携式的第一电源10;当用户需要室内使用,且需要较大电量或较大功率时,若第二电源20的电量或功率无法满足用户当前室内使用的需要,则可以将第一电源10与第二电源10连接,利用并联后的第一储能组110和第二储能组210的电量供电,以满足用户当前室内使用的需要。上述仅为本申请实施例的一种应用场景,本申请实施例并不限定第二电源20必须固定室内使用,第二电源20也可以为适合便携外出的储能电源。
也即,上述实施例提供的储能设备100,通过第一电源10与第二电源20可拆卸连接,使得第一电源10和第二电源20能够单独供电,并能够在通过第一接口120与第二电源20的第二接口220连接时,使得第一储能组110和第二储能组210实现并联对外供电,以提高储能设备的供电灵活性以及对应用场景的适应性。
在一实施例中,第一主控电路130,用于在市电对交流负载供电故障时,使第一储能组110和第二储能组210并联,以利用第一储能组110和第二储能组210并联向交流负载供电,或者利用第一储能组110或第二储能组210单独向交流负载供电。
应理解,要使得第一储能组110和第二储能组210能够并联向交流负载供电,由电池并联的工作原理可知,第一储能组110和第二储能组210的电压差值应小于预设差值。具体地,在通过第一主控电路130控制第一储能组110和第二储能组210并联之前,可由第一主控电路130确定第一储能组110和第二储能组210的电压差值,并在第一储能组110 和第二储能组210的电压差值不在预设差值范围内时,控制对第一储能组110和/或第二储能组210充电。其中,第一储能组110和第二储能组210的电压差越小,并联后的电路安全性越高,因此,预设差值可以为接近零的值,例如为0.1,0.02等。此外,预设差值也可以为零。
示例性地,第一主控电路130用于在第一储能组110和第二储能组210的电压差小于预设差值的情况下,使第一储能组110和第二储能组210并联,以利用并联后的第一储能组110和第二储能组210对外供电。
在一实施例中,第一主控电路130用于在第一储能组110和第二储能组210的电压差大于预设差值的情况下,可以通过控制第一储能组110和第二储能组210中电压值较大的储能组对外供电,直至第一储能组110和第二储能组210的电压差小于预设差值。应理解,在第一储能组110和第二储能组210的电压差小于预设差值后,可以通过第一主控电路130控制第一储能组110和第二储能组210并联,以利用并联后的第一储能组110和第二储能组210对外供电。以实现供电的灵活性。
此外,第一主控电路130还可以在第一储能组110和第二储能组210的电压差大于预设差值的情况下,控制第一储能组110和第二储能组210中电压值较大的储能组向电压值较小的储能组充电,直至第一储能组110和第二储能组210的电压差小于预设差值。应理解,当第一储能组110和第二储能组210的电压差较大时,会产生大电流,从而存在烧坏储能设备中的元件和线路的风险。因此,当第一储能组110和第二储能组210的电压差大于预设差值的情况下,可以通过控制电压值较大的储能组对外供电,或者通过控制电压值较大的储能组向电压值较小的储能组充电,电压差小于预设差值后再并联对外供电,以实现对外供电灵活性的同时,提高供电的安全性,提高储能设备的使用寿命。
其中,第一储能组110包括但不限于铅酸蓄电池、镍系电池、锂系电池、液流电池、钠硫电池或超级电容中的一种或多种。第二储能组210包括但不限于铅酸蓄电池、镍系电池、锂系电池、液流电池、钠硫电池或超级电容中的一种或多种。应理解,为了使得能够利用并联后的第一储能组110与第二储能组210对外供电,第一储能组110与第二储能组210对应为同类别的储能电池。具体地,第一储能组110的第一主控电路130可以通过控制开关器件使得第一储能组110和第二储能组210并联。可选地,开关器件可以设置在第一电源10内或者第二电源20内。在本申请的实施例中,为了使得第一电源10更方便户外携带,优选地,将开关器件设置在第二电源20内。
具体地,如图2所示,图2是本申请另一实施例提供的储能设备的示意性框图。
由图2可知,在本实施例中,在第二电源20内设置有第一开关器件240,第一电源10还包括第一通信口160。其中,第一通信口160用于与第二电源20通信;第一主控电路130通过第一通信口160向第二电源20传输第一通信信号,以控制第二电源20内的第一开关器件240导通,使第一储能组10和第二储能组20并联。以实现基于并联之后的第一储能组110和第二储能组210对外供电,或者以实现基于第一储能组110和第二储能组210中电压值较大的储能组对外供电,以有效提高储能设备对应用场景的适应能力。
此外,由图2可知,第一通信口160集成在第一接口120中,应理解,第一通信口160可以是与第一接口120独立的通信口,可以设置于第一电源10的任意位置。
具体地,如图2所示,第一开关器件240设置于第二储能组220连接第二接口220的路径中,第一开关器件240用于控制第一储能组110和第二储能组210的并联状态。
示例性地,第一开关器件240可以包括开关元件。第一开关器件240可以设置在第一储能组110的正极与第二储能组210的正极之间,也可以设置在第一储能组110的负极与第二储能组210的负极之间。当第一主控电路130控制开关元件闭合后,第一开关器件240导通,使得第一储能组110与第二储能组210连接。如此,实现第一储能组110和第二储能组210的并联。
通过上述分析可知,本申请实施例提供的储能设备,通过第一电源与第二电源可拆卸连接,使得第一电源和第二电源分别能够单独供电,并能够在通过第一接口与第二电源的第二接口连接时,使得第一储能组和第二储能组实现并联对外供电,以提高储能设备供电的灵活性以及对应用场景的适应性。
请参阅图3所示,图3是本申请又一实施例提供的储能设备的示意性框图。由图3可知,在本实施例中,第二电源20还包括第二通信口250。其中,第二通信口250用于与第一电源10通信。具体地,第二通信口250用于接收第一电源10发送的第一通信信号,第一通信信号用于使第一开关器件130导通,以使第一储能组10和第二储能组20并联。
示例性地,由图3可知,可以通过在第一电源10上设置第一通信口160,在第二电源20上设置第二通信口250,实现第一电源10与第二电源20的通信。具体地,第一主控电路130通过第一通信口160向第二通信口250传输第一通信信号,以控制第二电源20内的第一开关器件240导通,使第一储能组110和第二储能组210并联。
应理解,当第一电源10和第二电源20从连接状态拆卸为分离状态后,第一电源10的第一主控电路130以及第二电源20的第二主控电路260均会检测到通信信号断开,对应地,第一主控电路130可以发送控制信号,以控制第一开关器件240中的开关元件断开。其中,开关元件包括但不限于继电器、晶体管、二极管或MOS管等。
示例性地,第一通信口160可以集成在第一接口120内,也可以是独立于第一接口120的通信口;同理第二通信口250可以集成在第二接口220内,也可以独立于第二接口220的通信口。
在一些实施例中,可以通过在第二电源20内设置第二主控电路260,通过第二主控电路260接收第一主控电路130通过第一通信口160向第二通信口250传输的第一通信信号,并根据第一通信信号控制第一开关器件240导通,使得第一储能组110和第二储能组210并联。
示例性地,第一开关器件240也可设置在第一电源10内(图中未示出),具体可设置于第一储能组110连接第一接口120的路径中,第一主控电路130通过控制第一开关器件240导通,使第一储能组110和第二储能组210并联。第一开关器件240设置于第一电源10内与设置于第二电源20内的工作原理类似,在此不再赘述。
示例性地,除了第一开关器件240,也可以设置切换电路于第一电源10内,切换电路设置于第一储能组110与市电接口之间的通路以及第二储能组210与市电接口之间的通路,如此,切换电路控制第一储能组110和第二储能组210均与市电接口导通连接时,第一储能组110和第二储能组210可以并联供电或并联充电。除了市电接口,上述方式也可以拓展至其它类型的输入或输出接口。
示例性地,如图4所示,图4是本申请一实施例提供的第二电源的示意性框图。由图4可知,第二电源10还包括第二主控电路260,第二主控电路260连接第二通信口250和第一开关器件240,第二主控电路260通过第二通信口250接收第一主控电路130发送的第一通信信号,根据第一通信信号控制第一开关器件240导通,使得第一储能组110和第二储能组210并联。以利用并联之后的第一储能组110和第二储能组210对外供电。
应理解,当第一电源10和第二电源20连接时,第一接口120和第二接口220连接,若设置于第二储能组210连接第二接口220的路径中的第一开关器件240的开关元件处于断开状态,则第一储能组110和第二储能组210仅连接,但是处于非并联状态。
应理解,只有在第一储能组110和第二储能组210的电压差小于预设差值的情况下,第二储能组210才可控地与第一储能组110并联,以利用并联后的第一储能组110和第二储能组210对外供电。这是由于若第一储能组110和第二储能组210之间的电压差值过大,会产生大电流从而出现电池损坏的情况,比如大电流可能烧坏电路元件和线路,又比如大电流可能使储能组件的温度快速上升,从而损坏储能组件。因此,将两个储能组的压差控 制在预设范围内,保障第一储能组和第二储能组并联对外供电或并联同时充电的场景下的安全性。
此外,本申请实施例提供的第二电源20还可以用于在市电对交流负载供电故障时,利用并联后的第一储能组110和第二储能组210向交流负载供电。
示例性地,如图5所示,图5为图1中第二电源的又一实施方式的电路示意图。由图5可知,在本实施例中,第二电源20还包括市电接口230和第四接口270。其中,市电接口230与第四接口270连接,可用于在市电对交流负载供电故障时,利用并联后的第一储能组110和第二储能组210向交流负载供电。具体地,在第一电源10与第二电源20连接时,第四接口270与第一电源10的第三接口140连接,第三接口140连接第一电源10的第一储能组110,用于通过第四接口270向第二电源20传输并联后的第一储能组110和第二储能组210能够提供的电能,以用于在市电对交流负载供电故障时,通过第二电源20的市电接口230向交流负载供电。具体地,可参见图6以及图7所示。其中,图6为图1中第一电源的又一实施方式的电路示意图。图7为图5中的第二电源与图6中的第一电源组成的储能设备的实施方式结构示意图。
示例性地,第三接口140和第四接口270之间连接方式可以包括磁性连接或可插拔连接。具体地,该市电接口230可以连接家用插座,第一主控电路130用于通过该市电接口230对第一储能组110和/或第二储能组210进行充电,或者当市电故障时,可以通过该市电接口230进行室内供电。以提高储能设备对使用场景的适应性。
具体地,市电接口230可以通过第三接口140与第一电源10连接,以通过第三接口140将并联后的第一储能组110和第二储能组210提供的电能,通过市电接口230输出,向市电接口230连接的交流负载供电。
示例性地,如图6所示,图6是本申请一实施例提供的第一电源的示意性框图。由图6可知,第一电源10还包括第三接口140,该第三接口140连接第一储能组110,用于向第二电源20传输并联后的第一储能组110和第二储能组210能够提供的电能,以通过第二电源20的市电接口230向交流负载供电。其中,交流负载可以是接入市电接口230的各种家庭用电设备。
此外,第一主控电路130,可以在市电正常的情况下,利用市电对第一储能组10和/或第二储能组20充电。
在一些实施例中,第一主控电路130,还可以用于根据输出控制信号的情况下,利用第一储能组110和第二储能210组并联向交流负载供电,或者利用第一储能组110或第二储能组210单独向交流负载供电。
其中,输出控制信号包括但不限于由用户触发的输出控制信号,例如由用户通过按键、触控、APP等触发的输出控制信号,或者达到其它预设条件下触发生成的信号,例如电池状态正常,且输出接口连接有用电设备的情况,则可以输出控制信号等。具体地,在此不做具体限定。
应理解,第三接口还可与第二电源20连接,用于在市电正常时,传输第二电源20的市电接口230接入的电能,实现基于市电接口230接入的电能对并联后的第一储能组110和第二储能组210充电。
在一实施例中,第一主控电路130可用于在市电正常,且第一储能组110和第二储能组210的电压差小于预设差值的情况下,使第一储能组110和第二储能组210并联,以通过市电接口230对并联的第一储能组110和第二储能组210进行充电。实现基于市电接口230接入的电能对并联后的第一储能组110和第二储能组210充电。
此外,第一主控电路130用于在市电正常,且第一储能组110和第二储能组210的电压差大于预设差值的情况下,控制市电接口230对第一储能组110和第二储能组210中电压值较小的储能组进行充电,直至第一储能组110和第二储能组210的电压差小于预设差 值。
具体地,第一主控电路130可以通过控制与市电接口230连接的切换电路,可控地通过市电接口230对第一储能组110和第二储能组210中电压值较小的储能组进行充电。
示例性地,如图8所示,图8是本申请又一实施例提供的第一电源的示意性框图。由图8可知,在本实施例中,第一电源10还包括切换电路113,该切换电路113的固定接口114用于接入市电接口230,该切换电路113用于可控地将固定接口114切换连接第一储能组110,以使市电接口230可控地与第一储能组110之间通电。此外,该切换电路113的固定接口114还可以连接第二储能组210,以使市电接口230可控地与第二储能组210之间通电。
示例性地,切换电路113基于第一主控电路的控制信号将固定接口114连接第一储能组和/或第二储能组。
示例性地,利用市电接口进行充电时,切换电路113用于在第一储能组110的电压值小于第二储能组210的电压值,且第一储能组110和第二储能组210的电压差值大于预设差值时,可控地将固定接口114切换连接第一储能组,以使市电接口230可控地与第一储能组110之间通电,通过市电接口230对第一储能组110进行充电。此外,切换电路113还可以用于在第二储能组210的电压值小于第一储能组110的电压值,且第二储能组210与第一储能组110的电压差值大于预设差值时,可控地将固定接口114切换连接第二储能组,以使市电接口230可控地与第二储能组210之间通电,通过市电接口230对第二储能组210进行充电。
示例性地,利用第一储能组110和第二储能组210对市电接口连接的负载进行放电时,切换电路用于在第一储能组110和第二储能组210的电压差大于预设差值的情况下,切换电路可控地将固定接口切换连接第一储能组110和第二储能组210中电压值较大者,以控制电压值较大的储能组对外供电,直至第一储能组和第二储能组的电压差小于预设差值。在第一储能组110和第二储能组210的电压差小于预设差值的情况下,允许第一储能组110和第二储能组210并联对外供电或充电。
示例性地,第一储能组110和第二储能组210并联充电或并联对外供电,包括:第一储能组110和第二储能组210之间的第一开关器件240闭合,切换电路连接第一储能组110和第二储能组210中的一个,实现第一储能组110和第二储能组210并联充电或并联对外供电;或者,切换电路将固定接口114连接第一储能组110和第二储能组210,即,市电接口分别和第一储能组110和第二储能组210实现电路导通,实现第一储能组110和第二储能组210并联充电或并联对外供电。
示例性地,切换电路可以包括单刀双掷开关,切换电路也可以包括两个开关单元,一个开关单元控制市电接口与第一储能组之间通路的通断,另一开关单元控制市电接口与第二储能组之间通路的通断,或者,切换电路也可以包括其它实现同样功能的电路形式。
在其它示例中,切换电路的固定接口也可以连接其它输入输出接口,通过切换电路控制第一储能组110和第二储能组210分别与其它输入输出接口的通电情况,控制逻辑可以参考上述市电接口的示例。
具体地,切换电路113的固定接口114可通过连接逆变电路和/或整流电路以连接市电接口230。示例性地,如图9所示,图9是本申请又一实施例提供的第一电源的示意性框图。由图9可知,第一电源10还包括逆变电路118和整流电路112。其中,切换电路113的固定接口114通过逆变电路118和整流电路112以连接市电接口230。
具体地,在本实施例中,该逆变电路118连接第一储能组110,用于将第一储能组110和/或第二储能组210提供的直流电转换为交流电,以向交流负载供电。具体地,逆变电路118与第一电源110的AC输出口170连接,用于将第一储能组110和/或第二储能组210提供的直流电转换为交流电,通过AC输出口170向交流负载供电。其中,AC输出口170 通过逆变电路118与第一储能组110和/或第二储能组210连接,并与市电接口230连接,用于可控地将第一储能组110和/或第二储能组210提供的电能通过市电接口给负载提供。
其中,整流电路112用于将市电接口230接入的交流电转换为直流电,以对第一储能组110和/或第二储能组210充电。其中,整流电路112与AC输入口180连接,通过AC输入口180与市电接口230连接。具体地,第一电源10可以通过切换电路113,可控地将切换电路113的固定接口114切换至连接第一储能组110或第二储能组210,以使固定接口114能够通过整流电路112接入市电接口230的电能,实现市电接口230接入的电能可控地对第一储能组110和/或第二储能组210充电。
此外,逆变电路118和整流电路112可通过一双向逆变电路实现。具体地,双向逆变电路的工作原理与逆变电路和整流电路的工作原理类似,在此不再赘述。
示例性地,如图10所示,图10是本申请又一实施例提供的第一电源的示意性框图。由图10可知,在本实施例中,第一电源10还包括第二开关器件117。其中,第二开关器件117设置于第一储能组110对外供电的路径中。第一主控电路130通过控制第二开关器件117的状态,以允许第一储能组110对外供电。
由图10可知,具体地,第二开关器件117可设置于AC输出口170与市电接口230之间,可控地使AC输出口170与市电接口230接通,使逆变电路118与第一电源110的AC输出口170连接,用于将第一储能组110和第二储能组210提供的直流电转换为交流电,通过AC输出口170向交流负载供电。
其中,第二开关器件117的状态包括导通或断开。应理解,当第二开关器件117处于导通时,使AC输出口170与市电接口230接通;当第二开关器件117处于断开时,使AC输出口170与市电接口230断开。
具体地,第一主控电路130,用于在市电故障时,通过控制第二开关器件117导通,使市电接口230连接至AC输出口170,以通过第一储能组110和/或第二储能组210对外提供交流电。具体地,第一主控电路130可以通过控制切换电路133与第一储能组110连接,并通过控制第二开关器件117导通,使市电接口230连接至AC输出口170,以通过第一储能组110对外提供交流电。或者,第一主控电路130可以通过控制切换电路133与第二储能组210连接,并通过控制第二开关器件117导通,使市电接口230连接至AC输出口170,以通过第二储能组210对外提供交流电。此外,第一主控电路130还可以在控制切换电路与第一储能组110或第二储能组210连接时,通过控制第一开关器件240导通,使第一储能组110和第二储能组210并联,以通过第一储能组110和第二储能组210对外提供交流电。
应理解,第一主控电路130,用于在市电正常时,通过控制第二开关器件117端口,使市电接口230与AC输出口170断开,以通过市电接口230对外供电。
此外,如图11所示,图11是本申请又一实施例提供的第一电源的示意性框图。由图11可知,第二开关器件117还设置于第一储能组110的充电路径上,第一主控电路130还用于通过控制第二开关器件117的状态,以控制第一储能组110接入充电。
具体地,第二开关器件117还设置于AC输入口180与市电接口230之间。当第二开关器件117导通时,AC输入口180可将市电接口230接入的交流电传输至整流电路112,整流电路112将对应的交流电转换为直流电,以对第一储能组110和/或第二储能组210充电。
示例性地,第一主控电路130,用于若市电正常,通过控制第二开关器件117导通,使市电接口230连接至AC输入口180,以使市电接口230接入的交流电传输至整流电路112,整流电路112将对应的交流电转换为直流电,以对第一储能组110和/或第二储能组210充电。
需要说明的是,在图11中,没有示出切换电路113与第二储能组210连接的结构, 在实际应用中,如图10所示,切换电路113还需与第二储能组210连接,以实现通过市电接口230接入的交流电对第一储能组110和/或第二储能组210充电。第一电源设有接口用于连接切换电路和第二储能组,示例性地,第一电源包括第九接口,切换电路113连接第九接口,第二电源包括第十接口,第十接口连接第二储能组,第一电源连接第二电源时,第九接口连接第十接口,从而实现第一电源的切换电路与第二储能组的连接。
此外,如图11所示,在本申请的实施例中,还可以通过外部的太阳能或者充电器通过充电电路150对第一储能组110进行充电。
在一实施例中,第一主控电路130还可以通过AC输出口180的市电状态信号确定市电是否故障。
具体地,第一电源10包括逆变电路118和整流电路112。通过逆变电路118将第一储能组110和/或第二储能组210提供的直流电转换为交流电,实现对交流负载供电;通过整流电路112将市电接口230提供的电能转换为直流电,实现对第一储能组110和/或第二储能组210充电。
应理解,在本申请一些可选的实现方式中,第一电源10还可以包括双向逆变电路(图中未示出)。第一主控电路130还可以用于在若市电正常,通过第二开关器件117使市电接口230连接至双向逆变电路;若市电故障,通过第二开关器件117使市电接口230连接至双向逆变电路;其中,双向逆变电路与AC输出口170和AC输入口180均连接,通过双向逆变电路能够与第一储能组110连接,用于通过AC输出口170给第一储能组110充电;通过AC输入口180能够用于给负载提供交流电。其中,第二开关器件117可以包括AC切换开关或者其它形式的开关单元。
此外,第一主控电路130还可以控制第一储能组110和第二储能组210相互之间进行充电。例如,第一主控电路130可以通过控制直流变换电路实现第一储能组110和第二储能组210之间的相互充电。(权11)具体地,第一主控电路130可以在第一储能组110和第二储能组210的电压差大于预设差值的情况下,控制第一储能组110和第二储能组210中电压值较大的储能组向电压值较小的储能组充电,直至第一储能组110和第二储能组210的电压差小于预设差值。其中预设差值可以是根据实际需求进行预设设置的常数,例如0.3等。
例如,若第一储能组110和第二储能组210的电压差大于预设差值,且第一储能组110的电压值小于第二储能组210的电压值,则可以通过第二储能组210对第一储能组110充电。
又如,第一主控电路130,还可以在市电正常时,若第一储能组110的电压值大于第二储能组210的电压值,且第一储能组110和第二储能组210的电压差值大于预设差值的情况下,控制第一储能组110向第二储能组210充电,直至第一储能组110和第二储能组210的电压差小于预设差值。
具体地,如图12所示,图12是本申请又一实施例提供的第一电源的示意性框图。由图12可知,在本实施例中,第一电源10还包括第五接口141。其中,第五接口141与第一储能组110和第二电源20连接,能够通过第五接口141将第一储能110提供的电能传输至第二电源20,实现对第二储能组210充电。
具体地,第五接口141可以通过与第二电源20的直流变换电路连接,将第一储能组110提供的电能传输至第二电源20的第二储能组210。其中,第二电源20可以包括与第二储能组210连接的直流变换电路。需要说明的是,在本实施例中,第五接口141为与第一接口120独立的接口,在本申请其它一些可选的实现方式中,第五接口141还可以集成在第一接口120中。
示例性地,如图13所示,图13是本申请又一实施例提供的第二电源的示意性框图。由图13可知,在本实施例中,第二电源20还包括第一直流变换电路280,该第一直流变 换电路280连接第一电源10的第五接口141和第二储能组210,能够将第一储能组110通过第五接口141提供的电能进行转换后给第二储能组210充电。
示例性地,第一电源10的第一主控电路130可以通过第一通信口160向第二电源20的第二通信口250传输第二通信信号。其中,第二通信口250与第二主控电路260连接。第一直流变换电路280可以通过第七接口与第五接口141连接。其中,第七接口在图中未示出。
示例性地,第二电源20可通过第二主控电路260接收第二通信信号,第二主控电路260根据接收到的第二通信信号控制第一直流变换电路280工作,使第一储能组110能够向第二储能组210充电。其中,第二通信信号可以由第二通信口250传输至第二主控电路260。
在一些可选的实现方式中,第一电源10可以通过第五接口141将第一储能组110提供的电能传输至第一直流变换电路280,同时第二电源20的第二主控电路260接收到第一电源10的第一主控电路130通过第二通信口250传输的第二通信信号,并根据该第二通信信号控制第一直流变换电路280对第一储能组110传输的电能进行转换后给第二储能组210充电。其中,第一直流变换电路280可以包括DC-DC降压电路,具体地,通过DC-DC降压电路将第一储能组110传输的电能进行电压转换,输出至第二储能组210,以实现第一储能组110向第二储能组210的充电。在另一些可选的实现方式中,第一直流变换电路280还可以实现恒流输出。
此外,如图14所示,图14是本申请又一实施例提供的第一电源的示意性框图。由图14可知,第一电源10还可以包括第六接口142。该第六接口142与第一储能组110和第二电源20连接,能够通过该第六接口142将第二储能组210提供的电能传输至第一储能组110,实现对第一储能组110的充电。需要说明的是,在本实施例中,由图14可知,第六接口142和第五接口141均集成在第一接口120中,但是在本申请的其它一些实施例中,第六接口142和第五接口141还可以是独立于第一接口120的接口。
示例性地,第六接口142与第一储能组110和第二电源20的第二直流变换电路212连接,通过第二直流变换电路212将第二储能组210提供的电能进行转换后,通过该第六接口142传输至第一储能组110,实现利用第二储能组210提供的电能对第一储能组110的充电。
示例性地,如图15所示,在本实施例中,第二电源20还包括第二直流变换电路212。其中,第二直流变换电路212连接第二储能组210,用于将第二储能组210提供的电能进行转换后向第一电源10输出,使第二储能组210能够向第一储能组110充电。其中,第二直流变换电路212可以通过第八接口与第六接口142连接,具体地,图15中未示出第八接口。
示例性地,第一电源10可以通过第六接口142将第一储能组110提供的电能传输至第二直流变换电路212,同时第二电源20接收到第一电源10通过第一主控电路130传输的第三通信信号,并根据该第三通信信号控制第二直流变换电路212工作,以使第二储能组210能够向第一储能组110充电。(权42)示例性地,第二电源20可通过第二通信口250接收第一电源20传输的第三通信信号,由第二主控电路260根据第三通信信号控制第二直流变换电路212工作,使第二储能组210能够向第一储能组110充电。
其中,第二通信口250与第一电源10的第一通信口160和第二主控电路260连接,第二主控电路260根据第二通信口250传输的第三通信信号,对第二储能组210传输的电能进行转换后,输出给第一储能组110进行充电。其中,第二直流变换电路212也可以是DC-DC降压电路,具体地,通过DC-DC降压电路将第二储能组210传输的电能进行电压转换,输出至第一储能组110,实现第二储能组210向第一储能组110充电。在另一些可选的实现方式中,第二直流变换电路210还可以实现恒流输出。
此外,在一些实施例中,第一主控电路130,还用于在市电正常,第一储能组110的电压值小于第二储能组210的电压值,且第一储能组110和第二储能组210的电压差值大于预设差值的情况下,通过市电接口230对第一储能组110进行充电,直至第一储能组110和第二储能组210的电压差小于预设差值。
示例性地,通过市电接口230对第一储能组110进行充电的过程,可参考前面实施例中的详细描述,在此不再赘述。
其中,第五接口141和第一接口120可以集成在同一个接口中,第七接口和第二接口220也可以集成在同一个接口中。第六接口142可以和第一接口120和/或第五接口141集成在同一个接口中,第八接口可以和第二接口220和/或第七接口集成在同一个接口中。
此外,第一直流变换电路280在不需要工作时,可以处于关闭状态,以减少功耗。第二主控电路260可以控制第一直流变换电路280关闭或开启,或者,第一主控电路130通过通信信号控制第一直流变换电路280关闭或开启。例如,第一电源10和第二电源20拆卸为分离状态,第一电源10的第一主控电路130和/或第二电源20的第二主控电路260可以检测到断开,对应地,第二主控电路260控制第一直流变换电路280停止工作,或,第一主控电路230可以发送控制信号,以使得第二主控电路260根据接收到的控制信号,控制第一直流变换电路280停止工作。又例如,第一储能组110无需向第二储能组210充电,第一主控电路130向第二电源20发送通信信号,控制第一直流变换电路280停止工作。上述仅为示例,第一直流电路280的开启和关闭的控制策略可以根据实际需求进行调整。
应理解,第一直流变换电路280也可以设置在第一电源10内,当第一直流变换电路280设置在第一电源10内时,对应的工作原理与设置在第二电源20内的工作原理相同,在此不再赘述。在本申请实施例中,将第一直流变换电路280设置在第二电源20内,以提高第一电源10单独在户外使用的轻便以及可携带性。
通过上述分析可知,本申请实施例提供的储能设备,通过第一电源与第二电源可拆卸连接,使得第一电源和第二电源分别能够单独供电,并能够在通过第一接口与第二电源的第二接口连接时,使得第一储能组和第二储能组实现并联对外供电,以提高储能设备供电的灵活性以及对应用场景的适应性。
请查阅图16所示,如图16所示,图16是本申请一实施例提供的第一电源与第二电源的接口连接示意图。
需要说明的是,在图16中,第一接口、第六接口、第五接口和第一通信口均集成在一个接口中。第二接口、第七接口、第八接口和第二通信口均集成在一个接口中。以简化第一电源和第二电源的连接方式。
由图16可知,在本实施例中,第一电源10包括第一接口120,第二电源20包括第二接口220。其中,第一接口120内集成了第一通信口160、第一正端子115和第一负端子116;第二接口220内集成了第二通信口250、第二正端子213和第二负端子214。当第一电源10和第二电源20连接时,第一通信口160和第二通信口250连接,第一正端子115和第二正端子214连接,第一负端子116和第二负端子214连接。
第一通信口160与第一主控电路130连接,第一正端子115与第一储能组110的正极连接,第一负端子116与第一储能组110的负极连接。
第二通信口250与第二主控电路260连接,通过第二主控电路260与第一直流变换电路280、第二直流变换电路212以及第一开关器件240连接,第二正端子213分别与第一直流变换电路280的正极、第二直流变换电路212的正极以及第二储能组210的正极连接,第二负端子214分别与第一直流变换电路280的负极、第二直流变换电路212的负极以及第二储能组210的负极连接。
当第一电源10和第二电源20连接时,第一接口120和第二接口220连接,使得第一 通信口160和第二通信口250连接,第一直流变换电路280以及第二直流变换电路212均分别与第一储能组110和第二储能组210连接。通过控制第一直流变换电路280和第二直流变换电路212的导通,实现对第一储能组110和第二储能组210相互之间的充电。通过第一开关器件240的导通,实现对第一储能组110和第二储能组210的并联,进而,根据供电需要控制第一储能组110和第二储能组210对外供电。
应理解,第二直流变换电路212也可以设置在第一电源10内,在本申请实施例中,将第二直流变换电路212设置在第二电源20内,以提高第一电源10单独在户外使用的轻便以及可携带性。
此外,第二直流变换电路212在不需要工作时,可以处于关闭状态,以减少功耗。第二主控电路260可以控制第二直流变换电路212关闭或开启,或者,第一主控电路130通过通信信号控制第二直流变换电路212关闭或开启。例如,第一电源10和第二电源20拆卸为分离状态后,当用户需要携带第一电源10进行户外使用时,第一电源10的第一主控电路130以及第二电源20的第二主控电路260可以检测到通信信号断开,对应地,第二主控电路260控制第二直流变换电路212停止工作,或第一主控电路130可以发送控制信号,以使得第二主控电路260根据接收到的控制信号,控制第二直流变换电路212停止工作。又例如,第二储能组210无需向第一储能组110充电,第一主控电路130向第二电源20发送通信信号,控制第二直流变换电路212停止工作。上述仅为示例,第二直流变换电路212的开启和关闭的控制策略可以根据实际需求进行调整。请查阅图17所示,图17是本申请又一实施例提供的第一电源与第二电源的接口连接示意图,如图17所示,第一电源10还可以包括切换电路113,当第一电源10和第二电源20连接时,切换电路113连接第二储能组210,通过第一开关器件280实现第一储能组110和第二储能组210之间并联,通过切换电路113控制第一储能组110和/或第二储能组210连接至市电接口230。图17中的其它结构的工作原理可以参考图16说明。还可以将图16和图17的电路结构进行结合,如,第一电源10和第二电源20构成的电源系统可以包括第一直流变换电路、第二直流变换电路和切换电路。
在一实施例中,第一主控电路130用于在第一储能组110的电压大于预设电压值,且第一储能组110的电压值大于第二储能组210的电压值超过预设差值的情况下,控制第一储能组110向第二储能组210充电。
在一实施例中,第一主控电路130用于在第一储能组110向第二储能组210充电至第一储能组110和第二储能组210的电压差值小于预设差值的情况下,停止第一储能组110对第二储能组210充电,以及,控制市电接口230对第一储能组110充电至第一储能组110的电量大于预设电量。预设电量可以为满电电量、90%电量或95%电量等。
由于第一储能组110向第二储能组210充电过程中,消耗了自身的电量,对应可通过控制市电接口240对第一储能组110充电可以有效保障第一储能组110电量的恢复。在一实施例中,第一主控电路130用于在第一储能组110和第二储能组210的电压差值超出预设范围的情况下,控制市电接口240对第一储能组110和第二储能组210中电压值较低的储能组进行充电。
在一实施例中,第一主控电路230用于在第一储能组110和第二储能组210的电压差值在预设范围内的情况下,使第一储能组110和第二储能组210并联,并通过市电接口240对并联后的第一储能组110和第二储能组210进行同时充电。
应理解,上述各实施例通过第一主控电路130控制第二电源20内的市电接口240实现对第一储能组110和/或第二储能组210进行充电的过程进行了示例性说明,在实际应用中,还可通过第一主控电路130控制第一电源10内的充电接口电路111或第二电源20内的充电接口电路111实现对第一储能组110和/或第二储能组210的充电,其具体的控制原理与上述控制第二电源20内的市电接口240进行充电的原理相同,此处不再赘述。
此外,在本申请的一些实施例中,第一电源还可以包括对外供电接口(图中未示出),对外供电接口可以包括DC输出接口、车辆应急启动输出接口、点烟器接口、type-c接口或USB接口中的至少之一,用于给负载提供对应的电能。车辆应急启动输出接口,可以通过电瓶夹连接车辆实现应急启动功能。DC输出接口按电压区分,可以包括5V输出接口、12V输出接口、16V输出接口、19V输出接口或24V输出接口等中的一种或多种,此处列举仅为示例,本领域技术人员可以根据实际所需进行拓展。
应理解,还应当理解,本申请实施例中的“连接”可以包括直接连接或间接连接。示例性地,对外供电接口连接第一储能组,连接包括直接连接,或通过如开关电路、转换电路、逆变器或保护电路等一种或多种电路模块进行间接连接,第一储能组能够对外供电接口对外部负载进行供电。
应理解,本申请实施例提供的第二电源也可以包括DC输出接口、点烟器接口、type-c接口或USB接口中的至少之一,具体地,在本申请的实施例中不做限定。
通过上述分析可知,本申请实施例提供的储能设备,通过第一电源与第二电源可拆卸连接,使得第一电源和第二电源能够单独供电,并能够在通过第一接口与第二电源的第二接口连接时,使得第一储能组和第二储能组实现并联对外供电,以提高电源的供电灵活性,提高储能设备对应用场景的适应性。
本申请还提供一种储能电源控制方法,用于在第一电源和第二电源连接时,控制第一储能组和第二储能组并联,以实现利用并联后的第一储能组和第二储能组对外供电。其中,第一电源是方便用户携带到户外供电的电源,第二电源是置于室内供电的电源。通过在第二电源内设置市电接口,实现第二电源方便充电以及用于给室内供电。
请参阅图18所示,图18是本申请一实施例提供的储能电源控制方法的实现流程示意图。
需要说明的是,该储能电源控制方法具体可以应用于上述实施例提供的第一电源的主控电路,以下将以第一电源对该储能设备控制方法进行介绍,需知该储能电源控制方法并不局限于上述实施例提供的第一电源。例如,该储能电源控制方法还可以由第二电源的主控电路或者其它控制设备实现,具体在此不做限定。
由图18可知,在本实施例中,储能电源控制方法包括步骤S1110至步骤S1112。详述如下:
S1110,在检测到所述第一电源的第一接口和所述第二电源的第二接口连接时,使所述第一储能组和所述第二储能组并联。
其中,当用户需要使用大容量的电池供电时,会将第一电源和第二电源连接,具体当有第一电源的第一接口和第二电源的第二接口连接时,使第一储能组和第二储能组并联。
在一实施例中,在使第一储能组和第二储能组并联之前,还包括:控制第一储能组和第二储能组的电压差在预设范围内。如此,可以避免因第一储能组和第二储能组并联时出现两个储能组的压差过大,产生大电流而损坏产品的情况,比如大电流可能烧坏电路元件和线路,又比如大电流可能使储能组件的温度快速上升,从而损坏储能组件。因此,将两个储能组的压差控制在预设范围内再并联可以提高用电的安全性,延长产品使用寿命。
在本申请一可选的实现方式中,为了使得第一储能组和第二储能组的电压差在预设范围内,可以控制对第一储能组或第二储能组充电。可以在第一电源上设置充电接口电路或者在第二电源上设置充电接口电路,通过充电接口电路连接外部电源的方式实现对第一储能组或第二储能组的充电。
示例性地,在第二电源内设置市电接口。通过市电接口对第一储能组或第二储能组充电,直至第一储能组和第二储能组的电压差在预设范围内。
在一实施例中,当检测到市电正常的情况下,通过市电接口对第一储能组和/或第二储能组充电。
当检测到市电正常,且第一储能组和第二储能组的电压差大于预设差值的情况下,控制市电接口对第一储能组和第二储能组中电压值较小的储能组进行充电,直至第一储能组和第二储能组的电压差小于预设差值。
当检测到市电正常,且第一储能组和第二储能组的电压差小于预设差值的情况下,使第一储能组和第二储能组并联,以通过市电接口对并联的第一储能组和第二储能组进行充电。
在本申请另一可选的实现方式中,在第一储能组和第二储能组的电压差大于预设差值的情况下,控制第一储能组和第二储能组中电压值较大的储能组向电压值较小的储能组充电,直至第一储能组和第二储能组的电压差小于预设差值。
在一实施例中,通过向第二电源传输第二通信信号,以使第二电源根据第二通信信号控制第二电源的第一直流变换电路工作,使第一储能组向第二储能组充电;和/或,通过向第二电源传输第三通信信号,以使第二电源根据第三通信信号控制第二电源的第二直流变换电路工作,使第二储能组向第一储能组充电。
在其它可选的实现方式中,还可以通过充电接口电路先给第一储能组充电至第一储能组的电压大于预设电压,如果第一储能组的电压大于第二储能组的电压超过预设差值,则通过第一储能组向第二储能组充电,至第一储能组的电压大于第二储能组的电压不超过预设差值,再重复上述充电电路给第一储能组充电,然后由第一储能组向第二储能组充电的步骤直至第一储能组和第二储能组都充至满电状态,此时再将第一储能组和第二储能组并联。
在其它可选的实现方式中,只要能够使第一储能组和第二储能组达到电压均衡后再并联的任何充电方式,都在本申请的保护范围内。
需要说明的是,在本申请的实施例中,通过控制充电接口电路或市电接口,确定给第一储能组或第二储能组充电的原理可参考图1至图16实施例中关于第一电源和第二电源的描述。在此不再详细赘述。
需要说明的是,本领域技术人员可能上述实施例中第一储能组的电压值和第二储能组的电压值转换为其它电参数值进行表征,如电流或电量等,本质也在上述实施例的保护范围内。举例说明,第一储能组的电压值大于预设电压值,可被转换成第一储能组的电量值大于预设电量。
S1112,利用并联后的第一储能组和第二储能组对外供电。
其中,在第一接口与第二接口连接时,第二电源与第一电源连接。
示例性地,并联后的第一储能组和第二储能组可以通过DC输出接口提供直流电,也可以通过交流输出接口提供交流电,还可以通过车辆应急启动输出接口、type-c接口、点烟器接口或USB接口提供电能等。
此外,还可以通过控制充电接口电路或者市电接口向交流负载供电。具体地,在第一储能组和第二储能组并联之后,若检测到市电对交流负载供电故障,则控制并联后的第一储能组和第二储能组通过第二电源的市电接口向交流负载供电。当然,也可通过控制充电接口电路使得并联后的第一储能组和第二储能组通过第一电源的AC输出口向交流负载供电。
示例性地,在市电对交流负载供电故障时,利用第一储能组和第二储能组并联向交流负载供电,或者利用第一储能组或第二储能组单独向交流负载供电。
在一实施例中,在检测到输出控制信号的情况下,控制市电接口利用第一储能组和第二储能组并联向交流负载供电,或者利用第一储能组或第二储能组单独向交流负载供电。
在一实施例中,在第一储能组和第二储能组的电压差小于预设差值的情况下,使第一储能组和第二储能组并联,以利用并联后的第一储能组和第二储能组对外供电。
在一实施例中,在第一储能组和第二储能组的电压差大于预设差值的情况下,控制第 一储能组和第二储能组中电压值较大的储能组对外供电,直至第一储能组和第二储能组的电压差小于预设差值。
需要说明的是,在本申请的实施例中,通过控制充电接口电路或市电接口,确定利用第一储能组和/或第二储能组对外向交流负载供电的原理可参考图1至图16实施例中关于第一电源和第二电源的描述。在此不再详细赘述。
应理解,本实施例中的第一电源和第二电源的实现过程与图1至图16实施例中的第一电源和第二电源的实现过程相同,可参考前面各实施例的描述,在此不再赘述。
上述实施例提供的储能电源控制方法包括:在检测到所述第一电源的第一接口和所述第二电源的第二接口连接时,使所述第一储能组和所述第二储能组并联;利用并联后的所述第一储能组和所述第二储能组对外供电;其中,在所述第一接口与所述第二接口连接时,所述第二电源与所述第一电源连接。本实施例提供的储能电源控制方法,通过在检测到第一电源的第一接口和第二电源的第二接口连接时,使第一储能组和第二储能组并联,实现利用并联后的第一储能组和第二储能组对外供电。以使得第一电源能够与第二电源连接对外供电,提高储能设备对应用场景的适应能力。
应当理解,第一主控电路实现的各功能可以由一个处理模块执行,也可以是物理存在的多个处理模块共同实现,上述处理模块既可以采用硬件形式实现,也可以是采用软件功能模块的形式实现。第一主控电路可以包括微控制单元(Microcontroller Unit;MCU)、通用微处理器或者其他可编程逻辑器件、硬件组件等中的一种或多种,只要能够实现控制功能的均属于本申请实施例的保护范围。
第二主控电路实现的各功能可以由一个处理模块执行,也可以是物理存在的多个处理模块共同实现,上述处理模块既可以采用硬件形式实现,也可以是采用软件功能模块的形式实现。第一主控电路可以包括微控制单元(Microcontroller Unit;MCU)、通用微处理器或者其他可编程逻辑器件、硬件组件等中的一种或多种,只要能够实现控制功能的均属于本申请实施例的保护范围。
还应当理解,在此本申请说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本申请。如在本申请说明书和所附权利要求书中所使用的那样,除非上下文清楚地指明其它情况,否则单数形式的“一”、“一个”及“该”意在包括复数形式。
还应当理解,在本申请说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合,并且包括这些组合。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。上述本申请实施例序号仅仅为了描述,不代表实施例的优劣。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到各种等效的修改或替换,这些修改或替换都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求的保护范围为准。

Claims (45)

  1. 一种第一电源,其特征在于,所述第一电源能够与第二电源可拆卸连接,所述第一电源包括:
    第一储能组;
    第一接口,所述第一接口连接所述第一储能组,所述第一接口用于与所述第二电源的第二接口连接,所述第二接口与所述第二电源的第二储能组连接;
    第一主控电路,用于使所述第一储能组和所述第二储能组并联,以利用并联后的所述第一储能组和所述第二储能组对外供电。
  2. 根据权利要求1所述的第一电源,其特征在于,所述第一主控电路,用于在市电对交流负载供电故障时,利用所述第一储能组和所述第二储能组并联向交流负载供电,或者利用所述第一储能组或所述第二储能组单独向交流负载供电。
  3. 根据权利要求1所述的第一电源,其特征在于,所述第一主控电路,用于根据输出控制信号的情况下,利用所述第一储能组和所述第二储能组并联向交流负载供电,或者利用所述第一储能组或所述第二储能组单独向交流负载供电。
  4. 根据权利要求1所述的第一电源,其特征在于,所述第一主控电路,还用于在市电正常的情况下,通过市电接口对所述第一储能组和/或所述第二储能组充电。
  5. 根据权利要求1所述的第一电源,其特征在于,所述第一主控电路还用于在所述第一储能组和所述第二储能组的电压差小于预设差值的情况下,使所述第一储能组和所述第二储能组并联,以利用并联后的所述第一储能组和所述第二储能组对外供电。
  6. 根据权利要求1所述的第一电源,其特征在于,所述第一主控电路还用于在市电正常,且所述第一储能组和所述第二储能组的电压差小于预设差值的情况下,使所述第一储能组和所述第二储能组并联,以通过市电接口对并联的所述第一储能组和所述第二储能组进行充电。
  7. 根据权利要求1或4所述的第一电源,其特征在于,所述第一主控电路在所述第一储能组和所述第二储能组的电压差大于预设差值的情况下,控制所述第一储能组和所述第二储能组中电压值较大的储能组对外供电,直至所述第一储能组和所述第二储能组的电压差小于所述预设差值。
  8. 根据权利要求1或6所述的第一电源,其特征在于,所述第一主控电路,还用于在市电正常,且所述第一储能组和所述第二储能组的电压差大于预设差值的情况下,控制所述市电接口对所述第一储能组和所述第二储能组中电压值较小的储能组进行充电,直至所述第一储能组和所述第二储能组的电压差小于所述预设差值。
  9. 根据权利要求1所述的第一电源,其特征在于,所述第一电源还包括:切换电路,所述切换电路的固定接口用于接入市电接口,所述切换电路用于可控地将固定接口切换连接所述第一储能组或所述第二储能组,以使所述市电接口可控地与所述第一储能组或所述第二储能组之间通电。
  10. 根据权利要求9所述的第一电源,其特征在于,所述第一电源还包括逆变电路和/或整流电路,所述切换电路的固定接口通过连接所述逆变电路和/或所述整流电路以连接所述市电接口。
  11. 根据权利要求1或5所述的第一电源,其特征在于,所述第一主控电路还用于在所述第一储能组和所述第二储能组的电压差大于预设差值的情况下,控制所述第一储能组和所述第二储能组中电压值较大的储能组向电压值较小的储能组充电,直至所述第一储能组和所述第二储能组的电压差小于所述预设差值。
  12. 根据权利要求1或6所述的第一电源,其特征在于,所述第一主控电路,还用于 在市电正常、所述第一储能组的电压值小于所述第二储能组的电压值且所述第一储能组和所述第二储能组的电压差值大于预设差值的情况下,通过市电接口对所述第一储能组进行充电,直至所述第一储能组和所述第二储能组的电压差小于所述预设差值。
  13. 根据权利要求1或6所述的第一电源,其特征在于,所述第一主控电路,还用于在市电正常、所述第一储能组的电压值大于所述第二储能组的电压值且所述第一储能组和所述第二储能组的电压差值大于预设差值的情况下,控制所述第一储能组向所述第二储能组充电,直至所述第一储能组和所述第二储能组的电压差小于所述预设差值。
  14. 根据权利要求1所述的第一电源,其特征在于,所述第一主控电路,还用于向所述第二电源传输第二通信信号,以使所述第二电源根据所述第二通信信号控制所述第二电源的第一直流变换电路工作,使所述第一储能组向所述第二储能组充电;
    和/或,
    所述第一主控电路,还用于向所述第二电源传输第三通信信号,以使所述第二电源根据所述第三通信信号控制所述第二电源的第二直流变换电路工作,使所述第二储能组向所述第一储能组充电。
  15. 根据权利要求1所述的第一电源,其特征在于,所述第一电源还包括:
    第五接口,所述第一储能组连接所述第五接口,所述第五接口用于连接所述第二电源,以使所述第一储能组通过所述第五接口向所述第二储能组充电;
    和/或,
    第六接口,所述第一储能组连接所述第六接口,所述第六接口用于连接所述第二电源,以使所述第一储能组通过所述第六接口被所述第二储能组充电。
  16. 根据权利要求1或2所述的第一电源,其特征在于,所述第一电源还包括第三接口,所述第三接口连接所述第一储能组,用于向所述第二电源传输并联后的所述第一储能组和所述第二储能组提供的电能,以通过所述第二电源的市电接口向交流负载供电。
  17. 根据权利要求10所述的第一电源,其特征在于,所述逆变电路连接所述第一储能组,用于将所述第一储能组和/或所述第二储能组提供的直流电转换为交流电,以向交流负载供电。
  18. 根据权利要求1所述的第一电源,其特征在于,还包括第三接口,所述第三接口用于连接所述第二电源,以接入由所述第二电源的市电接口接入的电能对所述第一储能组和/或所述第二储能组充电。
  19. 根据权利要求10所述的第一电源,其特征在于,所述整流电路用于将市电接口接入的交流电转换为直流电,以对所述第一储能组和/或所述第二储能组充电。
  20. 根据权利要求1所述的第一电源,其特征在于,所述第一电源还包括第一通信口,所述第一通信口用于与所述第二电源通信;
    所述第一主控电路通过所述第一通信口向所述第二电源传输第一通信信号,以控制所述第二电源内的第一开关器件导通,使所述第一储能组和所述第二储能组并联。
  21. 根据权利要求10所述的第一电源,其特征在于,所述第一电源还包括第二开关器件,所述第二开关器件设置于所述第一储能组对外供电的路径中;
    所述第一主控电路通过控制所述第二开关器件的状态,以允许所述第一储能组对外供电。
  22. 根据权利要求21所述的第一电源,其特征在于,所述第二开关器件还设置于所述第一储能组的充电路径中,所述第一主控电路还用于通过控制所述第二开关器件的状态,以控制所述第一储能组接入充电。
  23. 根据权利要求1所述的第一电源,其特征在于,所述第一电源还包括第二开关器件、双向逆变电路、AC输入口和AC输出口;
    所述第一主控电路,用于若所述市电正常,通过所述第二开关器件使市电接口连接至 所述AC输入口;若所述市电故障,通过所述第二开关器件使所述市电接口连接至所述AC输出口;
    所述AC输入口,通过所述双向逆变电路与所述第一储能组连接,用于给所述第一储能组充电;
    所述AC输出口,通过所述双向逆变电路与所述第一储能组连接,用于给负载提供交流电。
  24. 根据权利要求1或2所述的第一电源,其特征在于,还包括AC输入口和检测电路,所述检测电路连接所述AC输入口和所述第一主控电路;
    所述AC输入口用于连接市电;
    所述检测电路用于基于所述AC输入口的市电状态,得到市电状态信号;
    所述第一主控电路还用于基于所述市电状态信号,控制并联后的所述第一储能组和所述第二储能组对外供电的情况。
  25. 根据权利要求1所述的第一电源,其特征在于,所述第一电源还包括充电接口电路,所述充电接口电路能够连接外部电源为所述第一储能组和/或所述第二储能组充电。
  26. 根据权利要求1至25任一项所述的第一电源,其特征在于,所述第一电源还包括对外供电接口,用于给负载提供电能,其中,所述对外供电接口包括DC输出接口、AC输出接口、车辆应急启动输出接口、点烟器接口、type-c接口或USB接口中的至少之一。
  27. 根据权利要求1所述的第一电源,其特征在于,所述第一电源为便携式储能电源。
  28. 一种第一电源,其特征在于,所述第一电源能够与第二电源可拆卸连接,所述第一电源包括:
    第一储能组;
    第一接口,所述第一接口连接所述第一储能组,所述第一接口用于与所述第二电源的第二接口连接,以使得所述第一储能组可控地和所述第二电源的第二储能组并联,基于并联后的所述第一储能组和所述第二储能组对外供电。
  29. 一种第二电源,其特征在于,所述第二电源与第一电源可拆卸连接,所述第二电源包括:
    第二储能组;
    第二接口,所述第二接口连接所述第二储能组,所述第二接口用于与所述第一电源的第一接口连接,所述第一接口与所述第一电源的第一储能组连接;
    在所述第二接口与所述第一接口连接时,所述第二储能组可控地与所述第一电源的第一储能组并联,以利用并联后的所述第一储能组和所述第二储能组对外供电。
  30. 根据权利要求28所述的第二电源,其特征在于,在所述第一储能组和所述第二储能组的电压差小于预设差值的情况下,所述第二储能组可控地与所述第一电源的第一储能组并联,以利用并联后的所述第一储能组和所述第二储能组对外供电。
  31. 根据权利要求29所述的第二电源,其特征在于,所述第二电源还包括第四接口和市电接口,所述第四接口与所述市电接口和所述第一电源连接,用于接收并联后的所述第一储能组和所述第二储能组提供的电能,通过所述市电接口向交流负载供电。
  32. 根据权利要求29所述的第二电源,其特征在于,所述第二电源还包括第四接口和市电接口,所述第四接口与所述市电接口和所述第一电源连接,所述市电接口用于接入外部供电,所述第四接口还用于基于所述市电接口接入的电能向所述第一电源提供电能。
  33. 根据权利要求29所述的第二电源,其特征在于,所述第二电源还包括第二通信口,所述第二通信口用于与所述第一电源通信。
  34. 根据权利要求29所述的第二电源,其特征在于,所述第二电源还包括第一开关器件,所述第一开关器件设置于所述第二储能组连接所述第二接口的路径中,用于控制所述第一储能组和所述第二储能组的并联状态。
  35. 根据权利要求34所述的第二电源,其特征在于,所述第二电源还包括第二通信口,所述第二通信口用于接收所述第一电源发送的第一通信信号,所述第一通信信号用于使所述第一开关器件导通,以使所述第一储能组和所述第二储能组并联。
  36. 根据权利要求34所述第二电源,其特征在于,所述第二电源还包括第二主控电路,所述第二主控电路连接所述第二通信口和所述第一开关器件,所述第二主控电路通过所述第二通信口接收所述第一通信信号,并根据所述第一通信信号控制所述第一开关器件导通,使所述第一储能组和所述第二储能组并联。
  37. 根据权利要求30所述的第二电源,其特征在于,所述第二电源还包括第一直流变换电路;所述第一直流变换电路连接所述第二储能组,用于将所述第一储能组提供的电能进行转换后给所述第二储能组充电。
  38. 根据权利要求37所述的第二电源,其特征在于,所述第二电源还包括第二主控电路,所述第二主控电路用于控制所述第一直流变换电路工作,使所述第一储能组能够向所述第二储能组充电。
  39. 根据权利要求38所述的第二电源,其特征在于,所述第二电源还包括第二通信口,所述第二通信口用于将所述第一电源的第二通信信号传输至所述第二主控电路,以使所述第二主控电路根据所述第二通信信号控制所述第一直流变换电路工作,使所述第一储能组能够向所述第二储能组充电。
  40. 根据权利要求29所述的第二电源,其特征在于,所述第二电源还包括第二直流变换电路,所述第二直流变换电路连接所述第二储能组,用于将所述第二储能组提供的电能进行转换后向所述第一电源输出,使所述第二储能组能够向所述第一储能组充电。
  41. 根据权利要求40所述的第二电源,其特征在于,所述第二电源还包括第二主控电路,所述第二主控电路用于根据所述第一电源的第三通信信号控制所述第二直流变换电路工作,以使所述第二储能组能够向所述第一储能组充电。
  42. 根据权利要求40所述的第二电源,其特征在于,所述第二电源还包括第二通信口,所述第二通信口用于接收所述第一电源的第三通信信号,所述第三通信信号用于控制所述第二直流变换电路工作,使所述第二储能组能够向所述第一储能组充电。
  43. 一种储能电源控制方法,其特征在于,应用于权利要求1至28任一项所述的第一电源;所述方法包括:
    在检测到所述第一电源的第一接口和所述第二电源的第二接口连接时,使所述第一储能组和所述第二储能组并联;
    利用并联后的所述第一储能组和所述第二储能组对外供电;
    其中,在所述第一接口与所述第二接口连接时,所述第二电源与所述第一电源连接。
  44. 一种储能设备,其特征在于,包括:
    如权利要求1至28任一项所述的第一电源;
    第二电源,包括第二储能组和第二接口,所述第二接口与所述第二储能组电连接;
    其中,所述第二电源能够与所述第一电源可拆卸连接,在所述第二电源与所述第一电源连接时,所述第二接口与所述第一电源的第一接口连接。
  45. 一种储能设备,其特征在于,包括:
    第一电源;
    如权利要求29至42任一项所述的第二电源;
    其中,所述第一电源能够与所述第二电源可拆卸连接,在所述第一电源与所述第二电源连接时,所述第一电源的第一接口与所述第二电源的第二接口连接。
PCT/CN2022/087738 2022-04-19 2022-04-19 第一电源及其控制方法、第二电源和储能设备 WO2023201533A1 (zh)

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