Standby power socket, standby power method and energy storage system

Abstract

The invention discloses a standby power socket, a standby power method and an energy storage system. The socket comprises a power grid connector configured to be connected with a power grid; the charging connector is configured to be connected with a charging port of energy storage equipment; the discharge connector is configured to be connected with a discharge port of the energy storage equipment; the at least one load connector is configured to be correspondingly connected with at least one load device; a bus formed by connecting the load connectors in parallel is connected with the power grid connector and the discharge connector through the first switch unit, when the first switch unit is in a first state, the bus and the power grid connector are in a connected state, and the bus and the discharge connector are in a disconnected state; when the first switch unit is in the second state, the bus and the power grid connector are in a disconnected state, and the bus and the discharge connector are in a connected state; the charging connector is connected with the power grid connector through the second switch unit. According to the standby power socket provided by the invention, standby power utilization of idle energy storage equipment is realized in a low-cost and high-usability manner.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, and in particular to a backup power socket, backup power method and energy storage system. Background Technology

[0002] With the increasing popularity of outdoor living, portable power stations (PPS) have become household necessities, allowing users to power various loads in off-grid environments. However, in everyday indoor life, these portable power stations often remain idle, failing to realize their full potential. Current technology has expanded the use of portable power stations as home backup power systems, enabling the use of stored energy to power household appliances during unexpected power outages.

[0003] Currently, there are two main ways to use portable energy storage devices to provide backup power for household appliances: The first is standby backup power: The AC charging port of the portable energy storage device is connected to a household socket, and the household appliances are connected to the AC discharge port of the PPS. When the power grid supply is normal, the grid charges the PPS to maintain a certain level of power, and the PPS simultaneously supplies power to the household appliances. However, in this method, the household appliances need to be constantly connected to the PPS. When users need to use the PPS while camping, they need to unplug the household appliances and plug them back into the household socket, which is quite inconvenient, especially for built-in appliances like refrigerators, as repeatedly plugging and unplugging them causes significant trouble for users.

[0004] The second type is whole-house backup power: This requires modifying the home's electrical circuits, installing smart meters, smart distribution boxes, and other equipment at the grid connection point. The PPS is connected to the smart distribution box, and when the grid fails, the PPS supplies power to all appliances in the house. However, this method requires additional electrical equipment such as smart meters and smart distribution boxes, resulting in significant circuit modification costs and requiring professional electrical engineers to implement it. This does not meet the actual needs of users using PPS for home backup power. Furthermore, since not all PPS systems support high-power discharge (usually less than 5 kW), even with whole-house backup power modifications, it cannot meet the simultaneous power needs of all appliances. If a user accidentally starts multiple appliances, it may trigger the PPS's overload protection, causing critical backup loads to lose power, significantly impacting the user experience of PPS backup power. Summary of the Invention

[0005] This application provides a backup power socket, a backup power method, and an energy storage system to solve the problems of inconvenient plugging and unplugging and high circuit modification costs when using energy storage devices for home backup power.

[0006] According to one aspect of this application, a backup power outlet is provided, comprising:

[0007] A power grid connector is configured to connect to the power grid.

[0008] A charging connector is configured to connect to the charging port of an energy storage device;

[0009] A discharge connector is configured to connect to the discharge port of the energy storage device;

[0010] At least one load connector is configured to connect to at least one load device;

[0011] The busbar formed by the parallel connection of the load connectors is connected to the power grid connector and the discharge connector through a first switching unit. When the first switching unit is in a first state, the busbar is connected to the power grid connector and disconnected from the discharge connector. When the first switching unit is in a second state, the busbar is disconnected from the power grid connector and connected to the discharge connector.

[0012] The charging connector is connected to the power grid connector via a second switching unit;

[0013] The states of the first switching unit and the second switching unit are determined at least based on the first electrical parameters of the power grid connector.

[0014] According to another aspect of this application, a backup power method is provided, applied to a backup power socket as described in any embodiment of this application, the method comprising:

[0015] Obtain the first electrical parameter at the power grid connector;

[0016] If the first electrical parameter is within the first range, control the first switching unit to be in the first state;

[0017] Otherwise, the first switching unit is controlled to be in the second state.

[0018] According to another aspect of this application, an energy storage system is provided, characterized in that it includes an energy storage device and a backup power socket as described in any embodiment of this application, wherein the discharge port of the energy storage device is connected to the discharge connector of the backup power socket, and the charging port of the energy storage device is connected to the charging connector of the backup power socket.

[0019] According to another aspect of this application, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the power backup method described in any embodiment of this application.

[0020] The technical solution of this application embodiment enables the use of energy storage devices to provide backup power to household load devices without modifying the household circuit through a backup power socket. Furthermore, the energy storage device can be unplugged from the backup power socket at any time, making it convenient for users to move and use the energy storage device at any time. This achieves the backup power utilization of idle energy storage devices in a low-cost and highly user-friendly manner.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a backup power socket provided according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of another backup power socket provided according to an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of another backup power socket provided according to an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of another backup power socket provided according to an embodiment of this application;

[0027] Figure 5 This is a flowchart of a power backup method provided according to an embodiment of this application. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "candidate," "target," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] Figure 1 This application provides a schematic diagram of a backup power socket, which can be applied to situations where backup power methods using energy storage power sources are optimized. Figure 1 As shown, the backup power outlet 10 includes:

[0031] The power grid connector 11 is configured to connect to the power grid.

[0032] The charging connector 12 is configured to connect to the charging port of the energy storage device 20;

[0033] The discharge connector 13 is configured to connect to the discharge port of the energy storage device 20;

[0034] At least one load connector 14 is configured to be connected to at least one load device 30;

[0035] The busbar formed by the parallel connection of the load connectors 14 is connected to the grid connector 11 and the discharge connector 13 through the first switching unit 15. When the first switching unit 15 is in a first state, the busbar is connected to the grid connector 11 and disconnected from the discharge connector 13. When the first switching unit is in a second state, the busbar is disconnected from the grid connector 11 and connected to the discharge connector 13.

[0036] The charging connector 12 is connected to the power grid connector 11 via the second switching unit 16;

[0037] The states of the first switching unit 15 and the second switching unit 16 are determined at least based on the first electrical parameters of the power grid connector.

[0038] Specifically, the backup power socket includes at least four connectors. The connectors can be sockets or plugs with cords, etc. This application embodiment does not limit the form of each connector; the configuration can be tailored to the object being connected. The power grid connector connects to the household power grid. For example, the power grid connector is a plug that can be directly plugged into a standard three-hole household socket. The power grid connector includes a live wire, a neutral wire, and a ground wire. Alternatively, the power grid connector can be a connecting wire that directly connects to the electrical wires in the household power grid.

[0039] Energy storage devices are mobile power systems that integrate energy storage, conversion, and output. They include battery packs, battery management systems, inverters, charging modules, and output modules, providing stable AC / DC power to users in environments without grid support, and supplying power to various loads. Energy storage devices also include charging ports for charging the device when its battery is low. For example, the charging port can be a plug that can be plugged into a power outlet to charge the device via the grid. They also include discharging ports for supplying power to other load devices when the device has sufficient power. These ports can be AC ​​outlets or USB ports; connecting the load device's plug to the discharging port allows the battery in the energy storage device to power the load.

[0040] One end of the charging connector connects to the charging port of the energy storage device, and the other end connects to the grid connector. This allows the grid to connect to the charging port of the energy storage device, enabling charging of the device via the grid. The form of the charging connector can be configured according to the charging port of the energy storage device. For example, if the charging port is a plug, the charging connector will be a matching socket. Furthermore, to control the charging of the energy storage device, the charging connector connects to the grid connector via a second switching unit. This second switching unit is a control switch, and its form and control method are not limited. When the second switching unit is in the connected state, the charging connector is connected to the grid connector, and the grid connector is connected to the charging port of the energy storage device, enabling charging. When the second switching unit is in the open state, the charging connector is disconnected from the grid connector, and the grid connector is disconnected from the charging port of the energy storage device, stopping charging. Therefore, controlling the second switching unit controls the charging status of the energy storage device. For example, the second switching unit is controlled by an operable switch on the backup power socket. The user can operate the operable switch according to the current power status of the energy storage device to control the switching status of the second switching unit. Furthermore, the backup power socket also includes an LED indicator corresponding to the second switching unit to display the switching status of the second switching unit, making it convenient for the user to visually view the current charging status of the energy storage device.

[0041] One end of the load connector is connected to the load device, and the other end is connected to the power supply terminal of the load device. This power supply terminal can be an energy storage device or the power grid. Therefore, the other end of the load connector is connected to a discharge connector or a power grid connector. When connected to the discharge connector, since the discharge connector is connected to the discharge port of the energy storage device, the load device is connected to the discharge port of the energy storage device, and the energy storage device supplies power to the load device. When connected to the power grid connector, the load device is connected to the power grid, and the power grid supplies power to the load device.

[0042] To achieve this connection method, a first switching unit connects the power grid connector, the discharge connector, and the load connector. Specifically, the first switching unit is a single-pole double-throw (SPDT) switch. The common terminal of the SPDT switch is connected to the load connector, the normally closed terminal is connected to the power grid connector, and the normally open terminal is connected to the discharge connector. When the first switching unit is in the first state, the normally closed terminal is closed, meaning the load connector is connected to the power grid connector. When the first switching unit is in the second state, the normally open terminal is closed, meaning the load connector is connected to the discharge connector. Furthermore, by controlling the SPDT switch, the power supply to the load device can be switched at any time. Alternatively, the first switching unit includes a first independent switch and a second independent switch. One end of the first independent switch is connected to the power grid connector, and the other end is connected to the load connector. One end of the second independent switch is connected to the discharge connector, and the other end is connected to the load connector. When the first switching unit is in the first state, the first independent switch is in the closed state, and the second independent switch is in the open state, meaning the power grid connector is connected to the load connector, and the discharge connector is disconnected from the load connector. When the second switching unit is in the second state, the first independent switch is in the open state, and the second independent switch is in the closed state, meaning the power grid connector is disconnected from the load connector, and the discharge connector is connected to the load connector. For example, the first switching unit can be controlled by an operable switch on a backup power socket. The user can operate this operable switch according to the current state of the power grid to control the switching state of the first switching unit. Furthermore, the backup power socket also includes an LED indicator corresponding to the first switching unit to display the open / closed state of the first switching unit, allowing the user to visually view the current power supply to the load device.

[0043] One end of the discharge connector is connected to the first switching unit, and the other end is connected to the discharge port of the energy storage device. This allows the load device to connect to the discharge port of the energy storage device to receive AC discharge from the energy storage device and supply power to the load device. The form of the discharge connector can be set according to the discharge port of the energy storage device. For example, if the discharge port of the energy storage device is a socket, then the discharge connector is a plug that matches the socket.

[0044] Furthermore, in order to simultaneously power multiple load devices using a single energy storage device, the backup power socket includes at least two load connectors. One end of each load connector is connected to a load device, and the other ends of all load connectors are connected in parallel to form a busbar, which is connected to the first switching unit. Figure 2 The diagram shows another type of backup power outlet. Load connector 14 includes multiple load connectors, each capable of connecting to a load device, and all load connectors are connected in parallel. When the first switching unit is in the first state, the power grid supplies power to the load devices on all load connectors. When the first switching unit is in the second state, energy storage devices supply power to the load devices on the load connectors. The specific form of the load connector can be determined based on the connection method of the load device. For example, if the load device is connected as a plug, the load connector is a socket; or if the load device is connected as USB, the load connector is the corresponding USB socket, etc. The forms of the multiple load connectors on the backup power outlet can be different.

[0045] The first switching unit on the backup power socket controls the power supply mode of the load device, and the second switching unit controls the charging status of the energy storage device. The states of the first and second switching units are determined based on the state of the power grid. The state of the power grid is determined by a first electrical parameter obtained from the power grid connector. If the first electrical parameter determines that the power grid is in a normal power supply state, the power grid is used to charge the energy storage device and supply power to the load device; that is, the first switching unit is in the first state, and the second switching unit is in the connected state. If the first electrical parameter determines that the power grid is in an off-grid state, i.e., a power outage state, the energy storage device is used to supply power to the load device, and charging of the energy storage device is stopped; that is, the first switching unit is in the second state, and the second switching unit is in the disconnected state. For example, the states of the first and second switching units can be switched by the user according to the power grid state.

[0046] As described above, this backup power socket can be easily connected to the household power grid, such as by plugging it directly into a household outlet or through a simple connection method, without requiring extensive modifications to the household circuitry. Furthermore, the energy storage power supply can also be easily connected to the backup power socket, enabling charging and serving as a backup power source to supply power to household appliances during power outages. Since the charging and discharging ports of the energy storage power supply connect easily to the charging and discharging connectors of the backup power socket, users can disconnect the energy storage power supply from the backup power socket without altering the household circuitry if they have other needs. Household appliances can remain connected to the load connectors on the backup power socket. When the grid is functioning normally, they can be powered by the grid; when the grid is down and the energy storage device is functioning normally, they can be powered by the energy storage power supply. This eliminates the need for repeated plugging and unplugging of household appliances. The easy plugging and unplugging of the load connectors on the backup power socket also allows for easy replacement of appliances requiring power, improving the user experience.

[0047] In one feasible embodiment, the socket further includes: a control unit configured to control the first switching unit to a first state in response to the first electrical parameter being within a first range; and to control the first switching unit to a second state in response to the first electrical parameter exceeding the first range.

[0048] Specifically, the backup power socket also includes a control unit, which enables automated control of the first switching unit. The control unit acquires the first electrical parameters from the power grid connector and uses these parameters to determine the power grid status. The power supply parameters of the State Grid are stable within a certain range, and the first range is determined based on the normal power supply parameters of the power grid.

[0049] If the control unit determines that the first electrical parameter obtained is within the first range, it determines that the current power grid is in a normal power supply state, and controls the first switch unit to be in the first state, that is, using the power grid to supply power to the load equipment; if the control unit determines that the first electrical parameter obtained exceeds the first range, it determines that the current power grid is in an off-grid power outage state, and controls the first switch unit to be in the second state, that is, using energy storage power to supply power to the load equipment.

[0050] For example, the first electrical parameter includes at least one of voltage parameter, current parameter, or frequency parameter. If the control unit determines that the power grid parameter is abnormal based on the first electrical parameter, such as power failure, undervoltage, or abnormal spectrum, it controls the first switching unit to disconnect from the power grid connector and switch to connect to the discharge connector. If the control unit determines that the power grid parameter is normal based on the first electrical parameter, it maintains the connection between the first switching unit and the power grid connector, and maintains the disconnection state between the first switching unit and the discharge connector.

[0051] This embodiment uses a control unit to automatically switch the state of the first switching unit according to the electrical parameters of the power grid. This allows the power grid to be used to supply power to the load device when the power grid is normal, and to automatically switch to using energy storage devices to supply power to the load device when the power grid is interrupted. This avoids the downtime caused by manual operation of the user to supply power to the load device, which would affect the continuous use of the load device.

[0052] In one feasible embodiment, the control unit is further configured to control the second switching unit to be in a connected state in response to the first electrical parameter being within a first range; and to control the second switching unit to be in a disconnected state in response to the first electrical parameter exceeding the first range or the second electrical parameter of the charging connector exceeding a second range.

[0053] Furthermore, if the control unit determines that the first electrical parameter obtained is within the first interval range, it determines that the current power grid is in a normal power supply state, and then controls the second switching unit to be in a connected state, that is, to use the power grid to charge the energy storage device.

[0054] If the control unit determines that the acquired first electrical parameter exceeds the first range, it determines that the current power grid is in an off-grid state and controls the second switch unit to be in the open state, that is, to stop charging the energy storage device; or it acquires the second electrical parameter at the charging connector, including at least one of voltage, current, or frequency parameters. Since the electrical parameters of the energy storage device are at normal levels when it is in a normal charging state, if the energy storage device is abnormal, such as a device malfunction that prevents charging or the charging port is not connected to the charging connector, or the energy storage device has completed charging, that is, the energy storage device is fully charged, then the second electrical parameter at its charging connector will exceed the normal second range. The second range can be determined based on the normal charging parameters of the energy storage device, for example, based on the device parameters of the energy storage device. In this case, it is also necessary to open the second switch unit, that is, to stop charging the energy storage device.

[0055] For example, a first electrical parameter, such as a voltage parameter, is obtained at the grid connector, and a second electrical parameter, such as a current parameter, is obtained at the charging connector. If the grid parameters are confirmed to be normal based on the first electrical parameter, the second switching unit is controlled to connect, with the purpose of charging the energy storage device. If the grid parameters are confirmed to be abnormal based on the first electrical parameter, the second switching unit is controlled to disconnect, stopping the charging of the energy storage device. If it is determined based on the second electrical parameter that no current is detected for a certain period of time, it is considered that the energy storage device is fully charged, or that the charging port of the energy storage device is not connected to the charging connector, and the second switching unit is also disconnected, stopping the charging of the energy storage device.

[0056] This embodiment uses a control unit to automatically switch the state of the second switching unit based on the electrical parameters of the power grid and the electrical parameters at the charging connector. This enables the grid to charge the energy storage device when the power supply is normal, automatically switch to stop charging the energy storage device when the power grid is interrupted, and stop charging the energy storage device when it malfunctions. This avoids the problem of insufficient power in the energy storage device caused by manual operation by the user, which could result in insufficient power when the energy storage device is needed to supply power to the load.

[0057] In one feasible embodiment, the control unit is further configured to control the second switching unit to be in an open state in response to the remaining power information of the energy storage device being greater than a preset power threshold.

[0058] Specifically, the control unit also communicates with the energy storage device to obtain its remaining power information. If it is determined that the remaining power of the energy storage device is greater than a preset power threshold, the control unit is turned off, thus stopping the charging of the energy storage device. The preset power threshold can be adjusted according to the user's actual needs, and its specific value is not limited here.

[0059] This embodiment automatically switches the state of the second switching unit by confirming the remaining power information of the energy storage device, thereby improving the charging efficiency of the energy storage device and avoiding resource waste and equipment damage caused by charging the energy storage device when the power is sufficient.

[0060] In one feasible embodiment, the control unit is further configured to issue a prompt message in response to the first switching unit being in a second state and the third electrical parameter of the discharge connector exceeding a third range.

[0061] The third range is the range of electrical parameters when the energy storage device supplies power to the load device normally, and it is determined based on the equipment parameters of the energy storage device.

[0062] When the first switching unit is in the second state, i.e. when the energy storage device is supplying power to the load device, if the third electrical parameter of the discharge connector is detected to exceed the third range, it is determined that the energy storage device is in an abnormal state, i.e., there is a problem with the power supply of the energy storage device. A prompt message is issued to inform the user. Since the energy storage device is supplying power at this time, it means that the power grid is in a state of power outage. Therefore, if the power supply of the energy storage device is also abnormal in this case, a prompt message is issued to inform the user that the load device is currently in a state of power outage, so that the user can check the energy storage device.

[0063] For example, the stability of the current at the discharge connector is determined based on the third electrical parameter of the discharge connector. If the current fluctuation exceeds the corresponding third range, a prompt message is issued, such as a buzzer sounding or an indicator light illuminating. For instance, the control unit includes a capacitor module, which uses the instantaneous stored charge to power the buzzer and indicator light when the energy storage device experiences a power supply abnormality.

[0064] This embodiment automatically determines the power supply status of the energy storage device by judging the electrical parameters of the discharge connector. This allows for the issuance of alerts when the energy storage device experiences an abnormal power supply, improving the user experience and preventing the load device from being in a power-off state without the user's knowledge.

[0065] In one feasible embodiment, the socket further includes a sampling unit configured to acquire a first electrical parameter of the power grid connector, or the first electrical parameter of the power grid connector and a second electrical parameter of the charging connector, or the first electrical parameter of the power grid connector, the second electrical parameter of the charging connector and a third electrical parameter of the discharging connector, and send them to the control unit.

[0066] This application embodiment also includes a sampling unit, which is used to sample at least one of the power grid connector, charging connector, and discharging connector to obtain corresponding electrical parameters according to the actual electrical parameter requirements of the control unit, and then send the electrical parameters to the control unit. Optionally, the sampling unit and the control unit are connected via a wired connection to enable the sending of the sampled electrical parameters to the control unit.

[0067] For example, the sampling unit samples the voltage, current, and frequency at the grid connector as a first electrical parameter, which is used to determine whether the grid power supply status is normal; the sampling unit samples the current parameter at the charging connector as a second electrical parameter, which is used to determine whether the charging status of the energy storage device is normal; the sampling unit samples the current parameter at the discharging connector as a third electrical parameter, which is used to determine whether the power supply status of the energy storage device is normal. The electrical parameters are provided to the control unit so that the control unit can perform automated control of the first switching unit and the second switching unit.

[0068] This embodiment uses a sampling unit to detect the power grid supply status, energy storage device charging status, and energy storage device discharging status, thereby improving the accuracy and efficiency of automatic switching between the power supply and charging status of the energy storage device.

[0069] like Figure 3 The diagram shows another type of backup power socket. Optionally, this backup power socket also includes a communication unit for communication between the control unit and the sampling unit. Alternatively, communication between the control unit and the sampling unit can also bypass the communication unit and be achieved directly through a wired connection between the control unit and the sampling unit. Alternatively, it can be used for communication between the control unit and the energy storage device. For example, the control unit establishes a communication link with the energy storage device through the communication unit to obtain the remaining power information of the energy storage device, or, through this communication link, sends a discharge start command to the energy storage device when the first switching unit is in the second state, causing the energy storage device to start AC discharge to supply power to the load device. Optionally, the communication unit can establish a communication link between the control unit and the energy storage device through wired communication, such as CAN or RS485; or through wireless communication, such as Bluetooth; or both communication methods can be supported simultaneously.

[0070] Optionally, the backup power socket also includes a power supply unit, which includes a power circuit for supplying power to the control unit, such as converting AC power to DC power of 12V-5V-3.3V. The power input of the power circuit can come from two parts: powered by the mains connector or powered by the discharge connector. Alternatively, the power supply unit may include a battery unit that directly supplies power to the power supply unit. The battery in the battery unit is a rechargeable battery that is charged by the mains connector or the discharge connector.

[0071] In one feasible embodiment, the socket further includes: at least one third switch unit 17, located on a parallel line between each of the load connectors and the bus, configured to control the power supply status of the load connectors on the line;

[0072] The control unit is configured to switch the switching state of the third switching unit on the parallel line corresponding to the target load connector at preset time intervals in response to the intermittent power supply command of the target load connector; wherein the intermittent power supply command is generated based on the remaining power information of the energy storage device or the user's operation command.

[0073] like Figure 4 The diagram shows another type of backup power socket. The third switch unit 17 includes at least one independent switch. The number of independent switches in the third switch unit is determined by the number of load connectors in the load connectors. If the target independent switch in the third switch unit is in the connected state, the load connector on the corresponding line of the target independent switch is in the connected state, and the load device connected to the load connector can be powered by the power grid or energy storage device. If the target independent switch in the third switch unit is in the open state, the load connector on the corresponding line of the target independent switch is in the open state, and the load device connected to the load connector is in the de-energized state. Through the third switch unit, the power supply status of the load devices connected to different load connectors can be independently controlled, making it convenient to change the power supply status of the load devices according to the current actual power supply situation.

[0074] Specifically, each independent switch in the third switch unit is connected in series with its corresponding load connector to form a parallel circuit. These parallel circuits are then connected in parallel to form a busbar, which is connected to the first switch unit. For example, the backup power socket contains operable switches corresponding to each independent switch in the third switch unit. Users can operate these operable switches to individually connect or disconnect the target independent switch.

[0075] For example, in response to an intermittent power supply command from the target load connector, the control unit periodically switches the independent switch in the third switching unit corresponding to the target load connector between connected and disconnected states at preset time intervals. For instance, for refrigerator-type load devices, since the residual heat of the refrigerator can be used for insulation, and since the energy storage device has limited power, the refrigerator load device can be in an intermittent power supply mode when the energy storage device is supplying power, i.e., it can provide intermittent power supply to maximize the backup power duration of the energy storage device and save power to supply other load devices.

[0076] For example, intermittent power supply to a fixed load connector can be pre-configured, or the user can configure intermittent power supply to a specific load connector. For instance, when the first switching unit is in the second state, the control unit switches the state of the fixed independent switch in the third switching unit at preset time intervals; or the control unit establishes a communication connection with the user's terminal device through a communication unit, allowing the user to configure the load connectors and determine the intermittently powered load connector. The control unit obtains the user's operation information and switches the state of the independent switch in the third switching unit corresponding to the user-configured intermittently powered load connector at preset time intervals. Alternatively, the control unit obtains the remaining power information of the energy storage device through the communication unit. In response to the remaining power information being less than a lower power limit threshold, the control unit intermittently switches the state of the independent switch corresponding to the fixed load connector. The lower power limit threshold and the preset time interval can be adjusted according to the user's needs and are not limited here.

[0077] Optionally, in the intermittent power supply mode of this application, the number of load connectors and the specific objects corresponding to the intermittent power supply mode are not limited, nor is the initiator of the intermittent power supply command limited. It can be determined by the control unit according to the pre-set objects or according to the user's control command.

[0078] This embodiment achieves independent control of different load connectors through a third switching unit, which facilitates independent control of the power supply status of the load devices; and achieves intermittent power supply mode to provide intermittent power to one or more load connectors, thereby improving the power supply duration and efficiency of the energy storage device when it is powered.

[0079] The technical solution of this application embodiment enables the use of energy storage devices to provide backup power to household load devices without modifying the household circuit through a backup power socket. Furthermore, the energy storage devices can be unplugged from the backup power socket at any time, making it convenient for users to move and use the energy storage devices at any time. This achieves the backup power utilization of energy storage devices in a low-cost and highly user-friendly manner.

[0080] Figure 5 This application provides an architecture diagram for a power backup method. This embodiment is applicable to situations where power backup methods using energy storage power sources are optimized. The method can be executed by a power backup device, which can be implemented in hardware and / or software. This power backup device can be configured in a power backup socket as described in any embodiment of this application. Figure 5 As shown, the method includes:

[0081] S510. Obtain the first electrical parameters at the power grid connector.

[0082] S520. If the first electrical parameter is within the first range, control the first switching unit to be in the first state.

[0083] S530. Otherwise, control the first switching unit to be in the second state.

[0084] Optionally, if the first electrical parameter is within a first range, the second switching unit is controlled to be in a connected state; if the first electrical parameter exceeds the first range or the second electrical parameter of the charging connector exceeds the second range, the second switching unit is controlled to be in a disconnected state.

[0085] Optionally, if the remaining power information of the energy storage device is greater than a preset power threshold, the second switching unit is controlled to be in the off state.

[0086] Optionally, if the first switching unit is in the second state and the third electrical parameter of the discharge connector exceeds the third range, a prompt message is issued.

[0087] Optionally, in response to the intermittent power supply command of the target load connector, the switching state of the third switching unit on the parallel line corresponding to the target load connector is switched at a preset time interval; wherein, the intermittent power supply command is generated based on the remaining power information of the energy storage device or the user's operation command.

[0088] The technical solution of this embodiment enables the use of energy storage devices to provide backup power to household load devices without modifying the household circuit, through a backup power socket. Furthermore, the energy storage devices can be unplugged from the backup power socket at any time, making it convenient for users to move and use the energy storage devices at any time. This achieves the backup power utilization of energy storage devices in a low-cost and highly user-friendly manner.

[0089] The backup power method provided in this application can be applied to any backup power socket provided in any embodiment of this application, and can be applied to the corresponding functional modules of the backup power socket and has corresponding beneficial effects.

[0090] The acquisition, storage, use, and processing of data in this application comply with relevant national laws and regulations and do not violate public order and good morals.

[0091] This application also provides an energy storage system, including an energy storage device and a backup power socket as described in any embodiment of this application, wherein the discharge port of the energy storage device is connected to the discharge connector of the backup power socket, and the charging port of the energy storage device is connected to the charging connector of the backup power socket.

[0092] According to embodiments of this disclosure, this disclosure also provides a readable storage medium and a computer program product.

[0093] In some embodiments, the power backup method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or mounted to a power backup outlet via ROM and / or a communication unit. When the computer program is loaded into RAM and executed by a processor, one or more steps of the power backup method described above may be performed. Alternatively, in other embodiments, the processor may be configured to perform the power backup method by any other suitable means (e.g., by means of firmware).

[0094] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific reference products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0095] Computer programs used to implement the methods of this application may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0096] In the context of this application, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0097] To provide user interaction, the systems and techniques described herein can be implemented on a backup power outlet, which includes: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the backup power outlet. Other types of devices can also be used to provide user interaction; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0098] The systems and technologies described herein can be implemented in computing systems that include back-end components (e.g., as data servers), or computing systems that include switching components (e.g., application servers), or computing systems that include front-end components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such back-end, switching, or front-end components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0099] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0100] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication unit, or installed from a storage unit, or installed from a ROM. When the computer program is executed by a processor, it performs the functions defined in the methods of the embodiments of this application.

[0101] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

[0102] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A backup power socket, characterized in that, The socket includes: A power grid connector is configured to connect to the power grid. A charging connector is configured to connect to the charging port of an energy storage device; A discharge connector is configured to connect to the discharge port of the energy storage device; At least one load connector is configured to connect to at least one load device; The busbar formed by the parallel connection of the load connectors is connected to the power grid connector and the discharge connector through a first switching unit. When the first switching unit is in a first state, the busbar is connected to the power grid connector and disconnected from the discharge connector. When the first switching unit is in a second state, the busbar is disconnected from the power grid connector and connected to the discharge connector. The charging connector is connected to the power grid connector via a second switching unit; The states of the first switching unit and the second switching unit are determined at least based on the first electrical parameters of the power grid connector.

2. The backup power socket according to claim 1, characterized in that, The socket also includes: The control unit is configured to control the first switching unit to a first state in response to the first electrical parameter being within a first range; and to control the first switching unit to a second state in response to the first electrical parameter exceeding the first range.

3. The backup power socket according to claim 2, characterized in that, The control unit is further configured to control the second switching unit to be in a connected state in response to the first electrical parameter being within a first range; and to control the second switching unit to be in a disconnected state in response to the first electrical parameter exceeding the first range or the second electrical parameter of the charging connector exceeding a second range.

4. The backup power socket according to claim 3, characterized in that, The control unit is further configured to control the second switching unit to be in an open state in response to the remaining power information of the energy storage device being greater than a preset power threshold.

5. The backup power socket according to claim 2, characterized in that, The control unit is also configured to issue a prompt message in response to the first switching unit being in the second state and the third electrical parameter of the discharge connector exceeding the third range.

6. The backup power socket according to any one of claims 2-5, characterized in that, The socket also includes: The sampling unit is configured to acquire a first electrical parameter of the power grid connector, or the first electrical parameter of the power grid connector and a second electrical parameter of the charging connector, or the first electrical parameter of the power grid connector, the second electrical parameter of the charging connector and a third electrical parameter of the discharging connector, and send them to the control unit.

7. The backup power socket according to claim 2, characterized in that, The socket also includes: At least one third switching unit, located on a parallel line between each of the load connectors and the bus, is configured to control the power supply status of the load connectors on the line. The control unit is configured to switch the switching state of the third switching unit on the parallel line corresponding to the target load connector at preset time intervals in response to the intermittent power supply command of the target load connector; wherein the intermittent power supply command is generated based on the remaining power information of the energy storage device or the user's operation command.

8. The backup power socket according to claim 1, characterized in that, The first switching unit includes a single-pole double-throw switch or two independent switches.

9. A power backup method, characterized in that, Applied to the backup power outlet as described in any one of claims 1-8, the method comprises: Obtain the first electrical parameter at the power grid connector; If the first electrical parameter is within the first range, control the first switching unit to be in the first state; Otherwise, the first switching unit is controlled to be in the second state.

10. An energy storage system, characterized in that, It includes an energy storage device and a backup power socket as described in any one of claims 1-8, wherein the discharge port of the energy storage device is connected to the discharge connector of the backup power socket, and the charging port of the energy storage device is connected to the charging connector of the backup power socket.

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