Energy storage equipment and energy storage system

Abstract

The utility model discloses an energy storage device and an energy storage system. The energy storage equipment comprises a shell, a battery pack, a battery management system and a power conversion system, the battery pack is connected with the battery management system, the battery management system is connected with the power conversion system, and the energy storage equipment further comprises a plurality of lamp strips connected with the battery management system; the lamp strip comprises a lamp bead signal circuit, two lamp bead power supply circuits and two groups of lamp beads which are alternately arranged, the two groups of lamp beads are respectively connected with one of the two lamp bead power supply circuits, and the two groups of lamp beads are connected with the same lamp bead signal circuit; at least one of the lamp strips is installed on the back face of the shell, and the back face is an installation face of the energy storage device. By adopting the scheme, the problem that the alarm of the energy storage equipment is difficult to find in time when the indicator lamp is abnormal is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of energy storage, and in particular to an energy storage device and an energy storage system. Background Technology

[0002] With the rapid development of power electronics technology and the growing consensus on the global energy crisis, products in the home energy storage field are developing rapidly in tandem; at the same time, users are placing increasingly higher demands on the human-machine interface of home energy storage devices.

[0003] The human-machine interface of home energy storage devices typically includes an app, a webpage, and physical indicators on the product's exterior. Users can access device information and operate the device conveniently through the app and webpage. Additionally, users expect the product to have a more user-friendly appearance, better integrating into their home décor; and to be safer, with sufficient warning information displayed on the product's exterior in case of communication network failures or other anomalies.

[0004] In general, home energy storage devices in related technologies only have indicator lights to display power, alarms, faults, or battery SOC. If the indicator light malfunctions and indicates an abnormality, it is difficult to detect the alarm in time when the energy storage device alarms. Utility Model Content

[0005] This invention provides an energy storage device and an energy storage system to solve the problem of difficulty in timely detection of energy storage device alarms when indicator lights are abnormal.

[0006] According to one aspect of the present invention, an energy storage device is provided, comprising: a housing, a battery pack, a battery management system, and a power conversion system, wherein the battery pack is connected to the battery management system, the battery management system is connected to the power conversion system, and the energy storage device further comprises multiple light strips connected to the battery management system;

[0007] The light strip includes a lamp signal circuit, two lamp power supply circuits, and two sets of lamps arranged alternately. The two sets of lamps are respectively connected to one of the two lamp power supply circuits, and the two sets of lamps are connected to the same lamp signal circuit.

[0008] At least one of the multiple light strips is installed on the back of the housing, which is the mounting surface of the energy storage device.

[0009] In an optional embodiment of this utility model, the battery management system includes:

[0010] A step-down circuit is connected to the battery pack;

[0011] The LED strip power supply control circuit is connected to the step-down circuit and the two LED bead power supply circuits.

[0012] The microprocessor is connected to the LED strip power supply control circuit and the LED bead signal circuit.

[0013] In an optional embodiment of this utility model, the battery management system further includes:

[0014] microphone;

[0015] An operational amplifier circuit is connected to the microphone and the microprocessor.

[0016] In an optional embodiment of this utility model, the battery management system further includes: an audio signal input interface connected to the operational amplifier circuit.

[0017] In an optional embodiment of this utility model, the battery management system further includes a battery detection module for collecting the voltage and / or temperature of the battery pack, the battery detection module being connected to the microprocessor.

[0018] In an optional embodiment of this utility model, the power conversion system includes: a pressure detection module and / or a vibration detection module.

[0019] In an optional embodiment of this utility model, the power conversion system includes a photovoltaic status detection module.

[0020] In an optional embodiment of this utility model, the lamp bead includes:

[0021] A tri-color LED is connected to one of the two LED power supply circuits.

[0022] The LED controller connects the tri-color LEDs and the LED signal circuit.

[0023] According to another aspect of the present invention, an energy storage system is provided, comprising: an energy management device and the energy storage device described in any embodiment of the present invention.

[0024] In an optional embodiment of this utility model, the energy management device includes:

[0025] Communication processor;

[0026] The wireless communication module is connected to the communication processor;

[0027] A communication bus connects to the battery management system;

[0028] The wireless communication module includes one or more of the following: WiFi communication module, Bluetooth communication module, 4G communication module, and 5G communication module.

[0029] The technical solution of this utility model embodiment includes multiple light strips connected to the battery management system within the energy storage device. Each light strip comprises a lamp signal circuit, two lamp power supply circuits, and two alternating sets of lamps. The two sets of lamps are respectively connected to one of the two lamp power supply circuits, and the two sets of lamps are connected to the same lamp signal circuit. At least one of the multiple light strips is mounted on the back of the housing, which is the mounting surface of the energy storage device. Therefore, if one lamp power supply circuit fails, the other lamp power supply circuit can still operate normally, ensuring that the functions of the light strip are not affected. This solves the problem of difficulty in timely detection of energy storage device alarms when indicator lights malfunction.

[0030] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the back of an energy storage device according to Embodiment 1 of the present invention;

[0033] Figure 2 yes Figure 1 Circuit block diagram of a medium-sized energy storage device;

[0034] Figure 3 yes Figure 2 Circuit block diagram of the central LED strip;

[0035] Figure 4 yes Figure 1 A schematic diagram of the front of the energy storage device;

[0036] Figure 5 This is a circuit block diagram of a battery management system, battery pack, and LED strip connection according to Embodiment 1 of this utility model;

[0037] Figure 6 This is a circuit block diagram of a power conversion system and a battery management system connected according to Embodiment 1 of this utility model;

[0038] Figure 7 This is a circuit block diagram of an energy storage system provided in Embodiment 2 of this utility model;

[0039] Figure 8 This is a circuit block diagram of another energy storage system provided in Embodiment 2 of this utility model.

[0040] The components include: 1. Housing; 2. Battery pack; 3. Battery management system; 31. Step-down circuit; 32. LED strip power supply control circuit; 33. Microprocessor; 34. Microphone; 35. Operational amplifier circuit; 36. Audio signal input interface; 37. Battery detection module; 4. Power conversion system; 41. Pressure detection module; 42. Vibration detection module; 43. Photovoltaic status detection module; 44. Signal processing module; 5. LED strip; 51. LED bead signal circuit; 52. LED bead power supply circuit; 53. LED bead; 531. Tri-color LED; 532. LED bead controller; 10. Energy storage device; 20. Energy management device; 201. Communication processor; 202. Wireless communication module; 203. Communication bus. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model 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 the utility model 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.

[0043] Example 1

[0044] like Figure 1 and Figure 2As shown in the figure, Embodiment 1 of this utility model provides an energy storage device 10, which includes: a shell 1, a battery pack 2, a battery management system 3, and a power conversion system 4. The battery pack 2 is connected to the battery management system 3, and the battery management system 3 is connected to the power conversion system 4. The shell 1 is a protective layer for the energy storage device 10, mainly serving to protect the internal components. The battery pack 2 is the main part of the energy storage device 10 that stores energy. The battery management system 3 is an intelligent system specifically designed to manage and protect the battery pack 2. It monitors the battery status (such as voltage, current, temperature, etc.) in real time, implements safety protection measures (such as overcharge protection, over-discharge protection, short-circuit protection, etc.), and optimizes battery performance to ensure that the battery pack 2 operates in the most efficient and safe manner. The power conversion system 4 is the interface between the energy storage device 10 and the power grid, responsible for converting direct current (DC) to alternating current (AC) and transmitting the electrical energy to the power grid or load. Simultaneously, it can also realize bidirectional flow of electrical energy, achieving peak shaving and valley filling of the power grid, and improving power quality.

[0045] like Figure 2 and Figure 3 As shown, the energy storage device 10 also includes multiple light strips 5 connected to the battery management system 3; the light strips 5 include a lamp signal circuit 51, two lamp power supply circuits 52 and two sets of lamps 53 arranged alternately, the two sets of lamps 53 are respectively connected to one of the two lamp power supply circuits 52, and the two sets of lamps 53 are connected to the same lamp signal circuit 51.

[0046] The LED signal circuit 51 is responsible for transmitting LED control signals to the LEDs 53. These control signals may include switch signals, brightness adjustment signals, color change signals, etc., depending on the type and purpose of the LED strip 5. The LEDs 53 perform corresponding operations such as lighting up, turning off, or adjusting brightness and color based on the received signals. The LED power supply circuit 52 provides the necessary power to the LEDs 53. Since there are two sets of LEDs 53 connected to two separate LED power supply circuits 52 in the LED strip 5, the lighting and turning off of the two sets of LEDs 53 can be controlled independently by controlling the on / off state of the two power supply circuits 52, achieving richer lighting effects. Distributing the LEDs 53 across the two power supply circuits 52 reduces the load on a single circuit, improving the stability and lifespan of the entire LED strip 5. Furthermore, the lifespan of currently available LED chips 53 is generally short, failing to match the warranty period of energy storage systems. By setting two sets of alternating LED chips 53, with both sets sharing the same control signal and separate control of the LED power supply circuits 52, if one LED power supply circuit 52 fails, the other can still operate normally, ensuring that the functions of the light strip 5 are not affected. In some embodiments, only one set of LED power supply circuits 52 is closed at a time, automatically switching to the other set after a certain period of power supply. In addition, the LED chips 53 employ fault bypass functionality, ensuring that a failure in the current LED chip 53 does not affect the next LED chip 53, thereby extending the lifespan of the light strip 5.

[0047] like Figure 1 and Figure 2 As shown, at least one of the multiple light strips 5 is installed on the back of the housing 1, which is the mounting surface of the energy storage device 10. The mounting surface refers to the side of the housing 1 of the energy storage device 10 used for mounting or fixing the energy storage device 10 to a certain location (such as a wall, ceiling, or other supporting structure). Installing the light strips 5 on the mounting surface of the energy storage device 10 means that these light strips 5 will not be directly visible after the device is normally installed, but they can still emit soft light through the edges or gaps of the energy storage device 10, adding aesthetic appeal to the surrounding environment.

[0048] The above solution includes multiple LED strips 5 connected to the battery management system 3 within the energy storage device 10. Each LED strip 5 comprises an LED signal circuit 51, two LED power supply circuits 52, and two alternating sets of LEDs 53. The two sets of LEDs 53 are each connected to one of the two LED power supply circuits 52, and both sets of LEDs 53 are connected to the same LED signal circuit 51. At least one of the LED strips 5 is mounted on the back of the housing 1, which is the mounting surface of the energy storage device 10. Therefore, if one LED power supply circuit 52 fails, the other LED power supply circuit 52 can still operate normally, ensuring that some functions of the LED strip 5 are not affected. This solves the problem of difficulty in timely detection of alarms from the energy storage device 10 when indicator lights malfunction.

[0049] In some embodiments, such as Figure 1 and Figure 4 As shown, at least one of the multiple light strips 5 is mounted on the front of the housing 1, making it easy for the user to see the light strip 5 emitting light. The light from the rear light strip 5 can be projected onto the wall as ambient lighting. The front light strip 5 can serve as an indicator light. In some embodiments, one or more light strips 5 are provided on the left, right, and top sides of the rear. That is, the rear may have one light strip 5 or multiple light strips 5. One light strip 5 may be mounted on one of the left, right, and top sides of the rear, while multiple light strips 5 may be mounted on the left, right, and top sides of the rear.

[0050] In optional embodiments of this utility model, such as Figure 2 and Figure 5 As shown, the battery management system 3 includes a step-down circuit 31, a microprocessor 33, and a light strip power supply control circuit 32; the step-down circuit 31 is connected to the battery pack 2; the light strip power supply control circuit 32 is connected to the step-down circuit 31 and two LED power supply circuits 52; the microprocessor 33 is connected to the light strip power supply control circuit 32 and the LED signal circuit 51.

[0051] The main function of the step-down circuit 31 is to convert the high-voltage DC power provided by the battery pack 2 into low-voltage DC power suitable for loads such as the LED strip 5. The microprocessor 33 is the core control unit of the entire system, used to issue control signals to the LED strip 5 to control its power supply. The LED strip power supply control circuit 32, based on the LED strip 5 control signals, is responsible for distributing the low-voltage DC power output from the step-down circuit 31 to the two LED power supply circuits 52. The LED power supply circuits 52 directly transmit the power provided by the LED strip power supply control circuit 32 to the LEDs 53, enabling them to emit light.

[0052] In optional embodiments of this utility model, such as Figure 2 and Figure 5 As shown, the battery management system 3 also includes a microphone 34 and an operational amplifier circuit 35; the operational amplifier circuit 35 connects the microphone 34 and the microprocessor 33. The main function of the microphone 34 is to convert audio signals into electrical signals. When sound waves act on the diaphragm of the microphone 34, the diaphragm vibrates, and the mechanical vibration is converted into a corresponding electrical signal through an internal electromagnetic or piezoelectric conversion mechanism. The operational amplifier circuit 35 is mainly used to amplify the weak electrical signal output by the microphone 34. The microprocessor 33 is the core control unit of the battery management system 3. It is responsible for receiving the amplified audio signals from the operational amplifier circuit 35 and processing and analyzing these signals according to preset algorithms and logic. The microprocessor 33 can also issue control signals to the light strip 5 based on the processing results, so that the light strip 5 displays a corresponding rhythm following the audio signal.

[0053] In some embodiments, audio signals, such as abnormal noise and warning sounds, are collected from the environment surrounding the battery management system 3 via microphone 34. These audio signals are amplified by operational amplifier circuit 35 and then received and processed by microprocessor 33. Microprocessor 33 can perform fault warnings and diagnoses based on the received audio signals. For example, when abnormal noise occurs in the battery management system 3, microprocessor 33 can identify the noise and issue corresponding warning signals, controlling the light strip 5 to illuminate to alert the operator and take necessary measures. Therefore, microphone 34, operational amplifier circuit 35, and microprocessor 33 together constitute an audio signal acquisition and processing system in the battery management system 3, providing strong support for the safe, stable, and efficient operation of energy storage device 10.

[0054] In an optional embodiment of this invention, the battery management system 3 further includes an audio signal input interface 36, which is connected to the operational amplifier circuit 35. The audio signal input interface 36 serves as a bridge between the battery management system 3 and external audio devices (such as a microphone 34, an audio player, etc.). It allows external audio devices to input analog audio signals into the battery management system 3. These signals are then amplified by the operational amplifier circuit 35, providing necessary gain and signal conditioning. The operational amplifier circuit 35 ensures that the audio signals can be clearly transmitted to the microprocessor 33 for processing and analysis.

[0055] In optional embodiments of this utility model, such as Figure 2 and Figure 5 As shown, the battery management system 3 also includes a battery detection module 37 for collecting the voltage and / or temperature of the battery pack 2. The battery detection module 37 is connected to the microprocessor 33. The battery detection module 37 is responsible for collecting key status information such as the voltage and / or temperature of the battery pack 2. This information is crucial for assessing the health status of the battery pack 2, predicting potential failures, and optimizing battery management strategies. The battery detection module 37 transmits this status information to the microprocessor 33 in real time for processing. After processing the data, the microprocessor 33 outputs corresponding control signals for the LED strip 5 to display the current status information of the battery management system 3.

[0056] In some embodiments, the battery detection module 37 includes an AFE chip. An AFE (Analog Front End) is an integrated circuit that processes analog signals and converts them into digital signals. The AFE chip typically monitors key parameters of the battery pack 2 in real time, such as voltage, current, and temperature, through a built-in acquisition module.

[0057] In optional embodiments of this utility model, such as Figure 2 and Figure 6As shown, the power conversion system 4 includes a pressure detection module 41 and / or a vibration detection module 42. The pressure detection module 41 is a sensor device for measuring the pressure of an object. In some embodiments, the pressure detection module 41 includes a pressure sensor. The vibration detection module 42 is a device for measuring, analyzing, and evaluating the vibration generated by the device or system during operation. In some embodiments, the vibration detection module 42 includes a vibration sensor. In some embodiments, the pressure detection module 41 is disposed on top of the energy storage device 10, thereby enabling it to detect whether there are any obstructions piled on top of the energy storage device 10. The vibration detection module 42 can detect whether the energy storage device 10 is subjected to physical damage such as impacts during operation. Therefore, the pressure detection module 41 and / or the vibration detection module 42 can detect whether the energy storage device 10 is subjected to physical damage, improving the reliability and availability of the energy storage device 10.

[0058] In some embodiments, when the energy storage device 10 is detected to be physically damaged by the pressure detection module 41 and / or the vibration detection module 42, the battery management system 3 controls the light strip 5 to emit light as an alarm, further improving the reliability and availability of the energy storage device 10.

[0059] In an optional embodiment of this utility model, the power conversion system 4 includes a photovoltaic status detection module 43. The photovoltaic status detection module 43 is a technical device for monitoring the status of photovoltaic modules or systems. It uses a series of sensors and circuits to collect key parameters of the photovoltaic modules in real time, such as current, voltage, and temperature, and sends this data to the battery management system 3 for analysis and processing. The battery management system 3 then controls the LED beads 53 to display the current photovoltaic status.

[0060] In an optional embodiment of this utility model, the power conversion system 4 further includes a signal processing module 44. The input terminal of the signal processing module 44 is electrically connected to the pressure detection module 41, the vibration detection module 42, and the photovoltaic state detection module 43, and the output terminal of the signal processing module 44 is electrically connected to the battery management system 3. The information detected by the pressure detection module 41, the vibration detection module 42, and the photovoltaic state detection module 43 is processed by the signal processing module 44 and then output to the battery management system 3. In some embodiments, the signal processing module 44 includes a digital signal processor (DSP), which is a programmable chip dedicated to digital signal processing. The DSP transforms and extracts the information detected by the pressure detection module 41, the vibration detection module 42, and the photovoltaic state detection module 43 before transmitting it to the battery management system 3.

[0061] In optional embodiments of this utility model, such as Figure 3As shown, the LED 53 includes a tri-color LED 531 and an LED controller 532. The tri-color LED 531 is connected to one of the two LED power supply circuits 52; the LED controller 532 is connected to the tri-color LED 531 and the LED signal circuit 51. The tri-color LED 531 is a light-emitting diode capable of emitting three different colors of light (usually red, green, and blue, i.e., RGB). By adjusting the intensity and ratio of these three colors, the LED strip 5 can produce 256*256*256 colors. The LED controller 532 controls the tri-color LED 531, receiving control signals from the LED signal circuit 51 and adjusting the LED 531's illumination state according to these signals.

[0062] In some embodiments, such as Figure 2 and Figure 6 As shown, the power conversion system 4 also includes an app. The app allows control of battery charging and discharging, and the display of information such as power, alarms, faults, or battery SOC on the light strips 5. It can also, according to user settings, make the lights on all or some of the light strips 5 follow the music. Specifically, the app includes parameter settings for ambient lights and indicator lights. Users can set different display effects according to actual scene requirements, including on / off options and brightness adjustment for ambient lights and indicator lights. Additionally, in certain holiday scenarios, the atmosphere can be enhanced by setting the indicator light colors and ambient light display modes. Ambient light display modes include one or more of music mode, holiday mode, and fixed mode. When set to music mode, the ambient lights will move rhythmically with the music; when set to holiday mode, the ambient lights will automatically query recent holidays and display corresponding theme colors, or users can manually select any theme color; when set to fixed mode, the ambient lights will cycle through various display effects, such as single-color running lights, multi-color running lights, and breathing rhythms, etc., which are not specifically limited here but are merely examples.

[0063] Example 2

[0064] Embodiment 2 of this utility model provides an energy storage system, such as Figure 7 As shown, the energy storage system includes: an energy management device 20 and an energy storage device 10 according to any embodiment of the present invention.

[0065] The energy management device 20 is the core component of the energy storage system, responsible for monitoring, controlling, and optimizing energy distribution and usage. By monitoring the operating status and energy flow patterns of the energy storage device 10, the energy management device 20 can achieve effective energy management and dynamically adjust the operating mode and energy distribution method of the energy storage device 10 according to energy demand and supply conditions to maximize energy utilization efficiency.

[0066] Since the energy storage system includes the energy storage device 10 of any embodiment of the present invention, it has all the effects of the energy storage device 10 of any embodiment of the present invention, and will not be described in detail here.

[0067] In optional embodiments of this utility model, such as Figure 8 As shown, the energy management device 20 includes a communication processor 201, a wireless communication module 202, and a communication bus 203. The wireless communication module 202 is connected to the communication processor 201; the communication bus 203 is connected to the battery management system 3.

[0068] The communication processor 201 is a crucial component of the energy management device 20. It receives input signals from other components and controls their operation. By processing data from various components, the communication processor 201 enables comprehensive monitoring and control of the energy storage system. The wireless communication module 202 is a module that transmits or receives electromagnetic signals and converts them into understandable information. In the energy management device 20, the wireless communication module 202 is used to achieve wireless connection and data transmission with other devices or systems. Therefore, by connecting to the wireless communication module 202, the communication processor 201 can achieve wireless communication with other devices or systems.

[0069] The communication bus 203 serves as a data transmission channel, connecting the energy management device 20 and the battery management system 3, enabling real-time and efficient data transmission between the two. In some embodiments, the energy management device 20 receives parameter information set by the user's APP through the wireless communication module 202, processes it through the communication processor 201, and then forwards it to the battery management system 3 through the communication bus 203. The battery management system 3 controls the display color, brightness, and mode of the LED beads 53 on the light strip 5 according to the user-set parameter information, realizing human-computer interaction.

[0070] In some embodiments, at least one light strip 5 is an ambient light, and at least one light strip 5 is an indicator light. The APP includes parameter settings for the ambient light and indicator lights. Users can set different display effects according to actual scene requirements. The display effects include on / off options for the ambient light and indicator lights, as well as brightness adjustment. Additionally, in certain holiday scenarios, the atmosphere can be enhanced by setting the color of the indicator lights and the display mode of the ambient light. The display modes of the ambient light include one or more of music mode, holiday mode, and fixed mode. When the user sets it to music mode, the ambient light will move rhythmically with the music. When the user sets it to holiday mode, the ambient light will automatically query recent holidays and display corresponding theme colors. Users can also manually select any theme color. When the user sets it to fixed mode, the ambient light will cycle through various display effects, such as single-color running lights, multi-color running lights, breathing rhythms, etc. These are not specifically limited but are merely examples. Therefore, this solution not only conveniently indicates information such as power, alarms, faults, and battery SOC, but also displays different lighting schemes according to user preferences or music, making it particularly suitable for holiday atmospheres and improving user experience.

[0071] In an optional embodiment of this utility model, the wireless communication module 202 includes one or more of a WiFi communication module, a Bluetooth communication module, a 4G communication module, and a 5G communication module.

[0072] Among them, the WiFi (Wireless Fidelity) communication module is a wireless local area network (WLAN) technology. It allows devices (such as smartphones, laptops, tablets, etc.) to connect to the Internet or local area network wirelessly without physical connections (such as network cables). The Bluetooth communication module is a short-range wireless communication technology that allows devices to connect and transmit data wirelessly over short distances. The 4G (Fourth Generation) communication module is a mobile communication technology that provides high-speed data transmission, high-quality voice calls, and rich multimedia services. The 5G (Fifth Generation) communication module is a mobile communication technology based on the 3GPP standard, which provides extremely high data transmission speeds, ultra-low latency, massive device connectivity, and high reliability. Because the wireless communication module 202 includes one or more of the WiFi, Bluetooth, 4G, and 5G communication modules, it is capable of wireless communication.

[0073] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0074] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. 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 utility model should be included within the scope of protection of this utility model.

Claims

1. An energy storage device, comprising: The system comprises a housing, a battery pack, a battery management system, and a power conversion system, wherein the battery pack is connected to the battery management system, and the battery management system is connected to the power conversion system; characterized in that it further comprises multiple light strips connected to the battery management system. The light strip includes a lamp signal circuit, two lamp power supply circuits, and two sets of lamps arranged alternately. The two sets of lamps are respectively connected to one of the two lamp power supply circuits, and the two sets of lamps are connected to the same lamp signal circuit. At least one of the multiple light strips is installed on the back of the housing, which is the mounting surface of the energy storage device.

2. The energy storage device according to claim 1, characterized in that, The battery management system includes: A step-down circuit is connected to the battery pack; The LED strip power supply control circuit is connected to the step-down circuit and the two LED bead power supply circuits. The microprocessor is connected to the LED strip power supply control circuit and the LED bead signal circuit.

3. The energy storage device according to claim 2, characterized in that, The battery management system also includes: microphone; An operational amplifier circuit is connected to the microphone and the microprocessor.

4. The energy storage device according to claim 3, characterized in that, The battery management system further includes an audio signal input interface connected to the operational amplifier circuit.

5. The energy storage device according to claim 2, characterized in that, The battery management system further includes a battery detection module for collecting the voltage and / or temperature of the battery pack, the battery detection module being connected to the microprocessor.

6. The energy storage device according to any one of claims 1 to 5, characterized in that, The power conversion system includes: a pressure detection module and / or a vibration detection module.

7. The energy storage device according to any one of claims 1 to 5, characterized in that, The power conversion system includes a photovoltaic status detection module.

8. The energy storage device according to any one of claims 1 to 5, characterized in that, The lamp beads include: A tri-color LED is connected to one of the two LED power supply circuits. The LED controller connects the tri-color LEDs and the LED signal circuit.

9. An energy storage system, characterized in that, include: Energy management equipment and energy storage equipment as described in any one of claims 1 to 8.

10. The energy storage system according to claim 9, characterized in that, The energy management device includes: Communication processor; The wireless communication module is connected to the communication processor; A communication bus connects to the battery management system; The wireless communication module includes one or more of the following: WiFi communication module, Bluetooth communication module, 4G communication module, and 5G communication module.

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