Micro energy storage unit with automatic detection and autonomous alarm functions

Abstract

The invention discloses a micro-energy storage unit with automatic detection and autonomous alarm functions, and the micro-energy storage unit is characterized in that a power management unit employs the electric energy stored by a rechargeable cell to carry out cell charge and discharge characteristic detection, cell connection detection, cell capacity detection, charge and discharge characteristic detection and parallel structure matching detection; in an abnormal condition, an alarm signal is sent to the sounding device and the light-emitting device to give out a sound-light alarm, the rechargeable battery cell is responsible for storing and releasing electric energy, the wireless communication module provides a communication function for the micro energy storage unit, and the alarm signal is sent through a wireless communication network when the abnormal condition is detected. Any detection abnormality triggers a sound-light alarm mechanism and remotely reports a fault through the wireless communication module, so that the reliability and the fault response speed of the system from production to an application stage are enhanced, the possibilities of battery cell capacity mismatching and battery cell misconnection during factory assembly are greatly reduced, the fault detection efficiency of the micro energy storage system in deployment and stages is improved, and the safety of the micro energy storage system is improved. Battery cell faults are found in advance, and the accident possibility is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery management technology, and in particular to a micro energy storage unit with automatic detection and autonomous alarm functions. Background Art

[0002] Renewable energy generation, such as photovoltaic power generation and wind power generation, is often equipped with micro energy storage units in order to supply power to the grid more stably and improve energy utilization efficiency. This is mainly because the generation of solar and wind energy is greatly affected by weather and time, while micro energy storage units can store excess energy and release it when needed to ensure the continuity and reliability of power supply. Micro energy storage units include battery packs and power management systems (Power Management System, PMS). The battery pack is the core component of energy storage and is responsible for the actual storage of electrical energy; the power management system monitors and controls the charging and discharging process of the battery pack to ensure its safe and efficient operation, while also optimizing the distribution and use of electrical energy and extending battery life.

[0003] During the installation of rechargeable cells, workers may connect the battery incorrectly. At the same time, the charging and discharging characteristics and battery capacity of each cell may also be different, which will affect the overall charging and discharging performance of the battery pack combined in series or parallel. Usually, cells with similar characteristics need to be connected in parallel or series to achieve the best effect.

[0004] In the existing technology, special equipment is used to test the cells individually before assembly to determine their charge and discharge characteristics, and then combine them. This process is time-consuming, labor-intensive and costly. During the deployment and use of micro energy storage modules, due to the temperature runaway and fire risks of rechargeable cells, especially lithium batteries, it is also necessary to detect the cell status for a long time. Currently, special equipment is required and it is difficult for users to perceive. Summary of the invention

[0005] The purpose of this application is to provide a micro energy storage unit with automatic detection and autonomous alarm functions in order to overcome the existing technical defects. Any abnormal detection will trigger the sound and light alarm mechanism and remotely report the fault through the wireless communication module, thereby enhancing the reliability and fault response speed of the system from production to application stage, greatly reducing the possibility of mismatch of battery cell capacity and wrong connection of battery cells during factory assembly, and improving the fault detection efficiency of the micro energy storage system in the deployment and stages, discovering battery cell faults in advance and reducing the possibility of accidents.

[0006] The purpose of this application is achieved through the following technical solutions:

[0007] In the first aspect, the present application proposes a micro energy storage unit with automatic detection and autonomous alarm functions, wherein the micro energy storage unit includes a power management unit and a battery pack and a wireless communication module respectively connected to the power management unit, wherein the battery pack includes one or more rechargeable cells;

[0008] The power management unit uses the electric energy stored in the rechargeable battery cell to perform automated testing, and sends an alarm signal to the sound-emitting device and / or the light-emitting device to emit an audible and visual alarm under abnormal circumstances. The automated testing includes battery cell charge and discharge characteristic detection, battery cell connection detection, battery cell capacity detection, charge and discharge characteristic detection, and parallel structure matching detection;

[0009] Rechargeable batteries, which are responsible for storing and releasing electrical energy;

[0010] The wireless communication module is used to provide communication functions for the micro energy storage unit and send an alarm signal through the wireless communication network when an abnormal situation is detected.

[0011] In a possible implementation, the micro energy storage unit further includes a sound generating device connected to the power management unit, for generating a sound alarm according to a received alarm signal.

[0012] In a possible implementation, the micro energy storage unit further includes a light emitting device connected to the power management unit, and configured to emit a light emitting alarm according to a received alarm signal.

[0013] In a possible implementation, the sound-generating device is a loudspeaker.

[0014] In a possible implementation manner, the light emitting device is a light emitting diode.

[0015] In a possible implementation, the power management unit is connected to the rechargeable battery cell via current and voltage wiring and temperature wiring.

[0016] In a possible implementation, the micro energy storage unit further includes a battery balancing unit for maintaining the consistency of the power levels of the various rechargeable cells.

[0017] In a possible implementation, the micro energy storage unit further includes an environment sensing sensor for detecting the ambient temperature.

[0018] The above-mentioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application; and in the present application, (non-conflicting options) options and other options can also be freely combined. After understanding the scheme of the present application, those skilled in the art can understand that there are multiple combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here.

[0019] The present application discloses a micro energy storage unit with automatic detection and autonomous alarm functions. The power management unit uses the electric energy stored in the rechargeable battery cell to detect the battery cell charge and discharge characteristics, battery cell connection detection, battery cell capacity detection, charge and discharge characteristics detection, and parallel structure matching detection. In abnormal situations, an alarm signal is sent to the sound device and the light emitting device to emit an audible and visual alarm. The rechargeable battery cell is responsible for storing and releasing electric energy. The wireless communication module provides communication functions for the micro energy storage unit and sends an alarm signal through the wireless communication network when an abnormal situation is detected. Any abnormal detection will trigger the audible and visual alarm mechanism and remotely report the fault through the wireless communication module, enhancing the reliability and fault response speed of the system from production to application stage, greatly reducing the possibility of battery cell capacity mismatch and battery cell connection error during factory assembly, and improving the fault detection efficiency of the micro energy storage system in deployment and stage, discovering battery cell faults in advance, and reducing the possibility of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a micro energy storage unit with automatic detection and autonomous alarm functions proposed in an embodiment of the present application is shown.

[0022] Icons: 200 - wireless communication module; 201 - power management unit; 202 - rechargeable battery cell; 203 - sound-generating device; 204 - light-emitting device. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0025] In the existing technology, special equipment is used to test the cells individually before assembly to determine their charge and discharge characteristics, and then combine them. This process is time-consuming, labor-intensive and costly. During the deployment and use of micro energy storage modules, due to the temperature runaway and fire risks of rechargeable cells, especially lithium batteries, it is also necessary to detect the cell status for a long time. Currently, special equipment is required and it is difficult for users to perceive.

[0026] Therefore, in order to solve the above-mentioned technical problems, the embodiments of the present application propose a micro energy storage unit with automatic detection and autonomous alarm functions. Any abnormal detection will trigger an audible and visual alarm mechanism and remotely report the fault through a wireless communication module, thereby enhancing the reliability and fault response speed of the system from production to application stages, greatly reducing the possibility of mismatched cell capacity and wrong cell connection during factory assembly, and improving the fault detection efficiency of the micro energy storage system in the deployment and stages, discovering cell faults in advance and reducing the possibility of accidents.

[0027] Please refer to Figure 1 , Figure 1 The schematic diagram of the structure of a micro energy storage unit with automatic detection and autonomous alarm functions proposed in an embodiment of the present application is shown. The micro energy storage unit includes a power management unit 201 and a battery pack and a wireless communication module 200 respectively connected to the power management unit 201. The battery pack includes one or more rechargeable batteries 202.

[0028] The power management unit 201 uses the electric energy stored in the rechargeable battery 202 to perform an automated test, and sends an alarm signal to the sound device 203 and / or the light emitting device 204 to emit an audible and visual alarm in an abnormal situation. The automated test includes battery charge and discharge characteristic detection, battery connection detection, battery capacity detection, charge and discharge characteristic detection, and parallel structure matching detection;

[0029] Rechargeable battery cell 202, used for storing and releasing electrical energy;

[0030] The wireless communication module 200 is used to provide a communication function for the micro energy storage unit and send an alarm signal through the wireless communication network when an abnormal situation is detected.

[0031] The power management unit 201 (PMU) not only manages the distribution and conversion of electrical energy, but also performs comprehensive battery cell health status detection, using the energy stored in the battery cell itself to perform self-detection, reducing dependence on external power sources and improving the system's self-sufficiency.

[0032] Battery packs store energy, and the cells not only need to have the ability to efficiently store and release electrical energy, but also need to support flexible series or parallel configurations in structure to meet different power and capacity requirements.

[0033] Automated testing includes battery cell charge and discharge characteristic detection, battery cell connection detection, battery cell capacity detection, charge and discharge characteristic detection and parallel structure matching detection. The battery cell charge and discharge characteristic detection ensures the stable performance of the battery cell during the charge and discharge process, and promptly detects aging or performance-degraded batteries. The battery cell connection detection checks whether the electrical connection between the battery cells is firm and correct to avoid problems caused by poor contact. The battery cell capacity detection verifies the actual storage capacity and consistency of each battery cell to ensure the overall performance of the battery pack. The charge and discharge characteristic detection evaluates the performance of the battery cell under actual use conditions, including charge and discharge efficiency, speed, etc. The parallel structure matching detection ensures that the performance of each battery cell matches when used in parallel to avoid overloading or underloading of individual batteries. Other tests may also be included.

[0034] When any abnormal situation is detected, the power management unit 201 will activate the sound device 203 and / or the light device 204 to emit an audible and visual alarm locally to immediately alert the on-site personnel. At the same time, the wireless communication module 200 will immediately send the alarm signal to the remote monitoring center or the relevant maintenance team through the wireless network to achieve rapid response and fault handling.

[0035] The micro energy storage unit also includes a sound generating device 203 connected to the power management unit 201, which is used to generate a sound alarm according to the received alarm signal.

[0036] The sound generating device 203 is a loudspeaker.

[0037] The micro energy storage unit further improves its alarm system by integrating the sound device 203. When the power management unit 201 detects an abnormality and sends an alarm signal, the sound device 203 will be activated and sound an alarm. This design enhances the effect of instant alarm, especially in scenarios where visual alarms may be ignored (such as environments with poor lighting conditions). The sound alarm can effectively remind on-site personnel to take timely measures to ensure safety and reduce potential losses.

[0038] The micro energy storage unit also includes a light emitting device 204 connected to the power management unit 201, which is used to emit light to give an alarm according to the received alarm signal.

[0039] The light emitting device 204 is a light emitting diode.

[0040] The light emitting device 204 enables the micro energy storage unit to trigger the light emitting device 204 and emit a light warning signal when an abnormal situation is detected. The advantage of the light emitting alarm is that even in a noisy environment or when the staff wears sound insulation equipment, the system abnormality can be detected through the light change, ensuring the effectiveness of the alarm in various working scenarios.

[0041] The combined sound and light alarm mechanism significantly enhances the system's warning coverage and immediate response capabilities, which is crucial for maintaining operational safety and improving system reliability.

[0042] The power management unit 201 is connected to the rechargeable battery cell 202 via current and voltage wiring and temperature wiring.

[0043] The current and voltage wiring allows the power management unit 201 to monitor the real-time current and voltage of each battery cell during the charging and discharging process. The current measurement can reflect the intensity of the power flow, while the voltage reflects the energy state and health of the battery cell. By continuously monitoring these parameters, the PMU can accurately control the charging and discharging process, optimize the efficiency of power use, and promptly detect any abnormal conditions that may cause overcharging, over-discharging or short circuiting.

[0044] Since the battery cell generates heat during the charging and discharging process, temperature management is the key to ensure the safety of the battery cell and extend its life. Through temperature wiring, the PMU can collect temperature information on the surface or inside of the battery cell in real time. High temperature not only affects the performance of the battery cell, but may also cause safety issues such as thermal runaway. Therefore, once it detects that the temperature exceeds the preset threshold, the PMU will quickly take measures, such as adjusting the charging and discharging strategy, or even starting the protection mechanism to prevent damage.

[0045] The micro energy storage unit also includes a battery balancing unit for maintaining the power levels of the rechargeable batteries 202 consistent.

[0046] The battery balancing system ensures that the power of each cell in the battery pack remains consistent, extending the service life of the entire battery pack and improving its efficiency.

[0047] The micro energy storage unit also includes an environment sensing sensor for detecting the surrounding environment temperature.

[0048] Environmental sensing sensors: monitor surrounding environmental conditions (such as humidity and temperature) to provide more comprehensive protection and adaptability for micro energy storage units.

[0049] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0050] First, it can significantly reduce the possibility of mismatched cell capacity and incorrect cell connection during factory assembly.

[0051] Second, it can significantly improve the fault detection efficiency of micro energy storage systems during deployment and stages, detect battery cell failures in advance, and reduce the possibility of accidents.

[0052] Therefore, the present application discloses a micro energy storage unit with automatic detection and autonomous alarm functions, in which the power management unit uses the electric energy stored in the rechargeable battery cells to perform battery cell charging and discharging characteristic detection, battery cell connection detection, battery cell capacity detection, charging and discharging characteristic detection and parallel structure matching detection, and in an abnormal situation, an alarm signal is sent to the sound device and the light device to emit an audible and visual alarm. The rechargeable battery cells are responsible for storing and releasing electric energy, and the wireless communication module provides communication function for the micro energy storage unit, and sends an alarm signal through the wireless communication network when an abnormal situation is detected.

[0053] Any abnormal detection will trigger the sound and light alarm mechanism and remotely report the fault through the wireless communication module, enhancing the reliability and fault response speed of the system from production to application stage, greatly reducing the possibility of cell capacity mismatch and cell wrong connection during factory assembly, and improving the fault detection efficiency of micro energy storage system in the deployment and stages, discovering battery cell failures in advance and reducing the possibility of accidents.

[0054] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A micro energy storage unit with automatic detection and autonomous alarm functions, characterized in that: The micro energy storage unit includes a power management unit and a battery pack and a wireless communication module respectively connected to the power management unit, and the battery pack includes one or more rechargeable cells; The power management unit uses the electric energy stored in the rechargeable battery cell to perform automated testing, and sends an alarm signal to the sound-emitting device and / or the light-emitting device to emit an audible and visual alarm under abnormal circumstances. The automated testing includes battery cell charge and discharge characteristic detection, battery cell connection detection, battery cell capacity detection, charge and discharge characteristic detection, and parallel structure matching detection; Rechargeable batteries, which are responsible for storing and releasing electrical energy; The wireless communication module is used to provide communication functions for the micro energy storage unit and send an alarm signal through the wireless communication network when an abnormal situation is detected.

2. The micro energy storage unit according to claim 1, characterized in that: The micro energy storage unit also includes a sound generating device connected to the power management unit, which is used to generate a sound alarm according to the received alarm signal.

3. The micro energy storage unit according to claim 1, characterized in that: The micro energy storage unit also includes a light emitting device connected to the power management unit, which is used for emitting light to give an alarm according to the received alarm signal.

4. The micro energy storage unit according to claim 2, characterized in that: The sound-generating device adopts a loudspeaker.

5. The micro energy storage unit according to claim 3, characterized in that: The light emitting device adopts a light emitting diode.

6. The micro energy storage unit according to claim 1, characterized in that: The power management unit is connected to the rechargeable battery cell through current and voltage wiring and temperature wiring.

7. The micro energy storage unit according to claim 1, characterized in that: The micro energy storage unit also includes a battery balancing unit for maintaining the consistency of the power of each rechargeable battery cell.

8. The micro energy storage unit according to claim 1, characterized in that: The micro energy storage unit also includes an environment sensing sensor for detecting the ambient temperature.

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