Energy storage battery power safety detection device

Abstract

The utility model discloses a power safety detection device for an energy storage battery. The power safety detection device comprises a shell, a first power supply module, a second power supply module, a current sensor module, a voltage sensor module, a first signal processing module, a second signal processing module, a data synchronization module, a display module and an alarm module, the first power supply module is connected with the current sensor module, the current sensor module is connected with the first signal processing module, and the first signal processing module is connected with the data synchronization module; the second power supply module is connected with the voltage sensor module, the voltage sensor module is connected with the second signal processing module, and the second signal processing module is connected with the data synchronization module; the display module is connected with the data synchronization module, and the alarm module is connected with the data synchronization module. According to the utility model, the precision and safety of the power of the energy storage battery can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to a power safety detection device for energy storage batteries. Background Art

[0002] With the transformation of the global energy structure and the enhancement of environmental protection awareness, new energy technologies have developed rapidly. Among them, energy storage batteries, as the core components for energy storage and release, have been widely used in fields such as electric vehicles, smart grids, and renewable energy storage. However, during the charging process of energy storage batteries, if the charging power is too large, a series of serious consequences may occur, such as battery overheating, electrolyte decomposition, and further even battery expansion and rupture, ultimately leading to battery thermal runaway.

[0003] Currently, most of the existing charging power detection devices on the market have problems such as low accuracy, slow response speed, and short service life, and it is difficult to meet the requirements of actual applications. In addition, the existing charging power detection devices do not consider possible malicious attacks, such as electromagnetic interference (EMI) attacks, signal injection attacks, etc. These malicious attacks will cause the power detection device to fail or even output tampered values, resulting in serious safety consequences. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a power safety detection device for energy storage batteries, which can improve the accuracy of battery power detection, prevent the occurrence of malicious attacks, and ensure the safety of battery power detection.

[0005] To solve the above technical problems, an embodiment of the utility model provides a power safety detection device for energy storage batteries, which includes a housing, a first power supply module, a second power supply module, a current sensor module, a voltage sensor module, a first signal processing module, a second signal processing module, a data synchronization module, a display module, and an alarm module;

[0006] The first power supply module is connected to the current sensor module, the current sensor module is connected to the first signal processing module, and the first signal processing module is connected to the data synchronization module;

[0007] The second power supply module is connected to the voltage sensor module, the voltage sensor module is connected to the second signal processing module, and the second signal processing module is connected to the data synchronization module;

[0008] The display module is connected to the data synchronization module, and the alarm module is connected to the data synchronization module.

[0009] Preferably, the first power module and the second power module are independent of each other, the current sensor module and the voltage sensor module are independent of each other, and the first signal processing module and the second signal processing module are independent of each other.

[0010] Preferably, the housing is made of corrosion-resistant material.

[0011] Specifically, both the first power module and the second power module include a power management circuit and a backup battery pack;

[0012] The power management circuit uses Texas Instruments TPS7A4700, and the backup battery pack uses Panasonic CR123A lithium battery.

[0013] Preferably, both the current sensor module and the voltage sensor module include a Hall effect sensor and a voltage divider circuit;

[0014] The Hall effect sensor uses Allegro ACS712, and the voltage divider circuit uses Vishay Dale RN60D resistor.

[0015] Specifically, both the first signal processing module and the second signal processing module include a signal amplification unit, an analog-to-digital conversion unit, and a microprocessor.

[0016] Preferably, the signal amplification unit uses Texas Instruments INA219, the analog-to-digital conversion unit uses Analog Devices AD7606, and the microprocessor uses STM32F4 series.

[0017] Preferably, the data synchronization module uses Microchip 24LC256.

[0018] Preferably, the alarm module includes an alarm and a remote alarm unit, and the alarm uses Mallory Sonalert SC110.

[0019] Preferably, the display module uses an LCD screen.

[0020] Compared with the prior art, a power safety detection device for an energy storage battery provided by the present utility model includes a housing, a first power supply module, a second power supply module, a current sensor module, a voltage sensor module, a first signal processing module, a second signal processing module, a data synchronization module, a display module, and an alarm module; the first power supply module is connected to the current sensor module, the current sensor module is connected to the first signal processing module, and the first signal processing module is connected to the data synchronization module; the second power supply module is connected to the voltage sensor module, the voltage sensor module is connected to the second signal processing module, and the second signal processing module is connected to the data synchronization module; the display module is connected to the data synchronization module, and the alarm module is connected to the data synchronization module. The present utility model designs two independent sets of sensors and signal processing units, has a dual power detection function, ensures high-precision power detection, and at the same time effectively prevents potential malicious attacks through data synchronization, improving the safety and reliability of the power safety detection device for the energy storage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the present utility model, the drawings to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0022] Figure 1 FIG. 1 is a schematic structural diagram of a first embodiment of a power safety detection device for an energy storage battery provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0025] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0026] See Figure 1 , which is a schematic structural diagram of a power safety detection device for an energy storage battery provided by an embodiment of the present invention; the power safety detection device for the energy storage battery includes a housing 1, a first power supply module 2, a second power supply module 3, a current sensor module 4, a voltage sensor module 5, a first signal processing module 6, a second signal processing module 7, a data synchronization module 8, a display module 9, and an alarm module 10;

[0027] The first power supply module 2 is connected to the current sensor module 4, the current sensor module 4 is connected to the first signal processing module 6, and the first signal processing module 6 is connected to the data synchronization module 8;

[0028] Preferably, the first power supply module 2 and the second power supply module 3 are independent of each other, the current sensor module 4 and the voltage sensor module 5 are independent of each other, and the first signal processing module 6 and the second signal processing module 7 are independent of each other.

[0029] It should be noted that in specific implementation, two sets of independent current sensors and voltage sensors are used, which can be respectively used to detect the current and voltage of the energy storage battery. Among them, each set of sensor systems works independently and is redundant with each other. Once one set of sensors fails, the other set can still continue to work to ensure the continuity and reliability of detection.

[0030] The second power supply module 3 is connected to the voltage sensor module 5, the voltage sensor module 5 is connected to the second signal processing module 7, and the second signal processing module 7 is connected to the data synchronization module 8;

[0031] It is worth noting that two independent signal processing modules are used to calculate the power of the energy storage battery. One signal processing module is connected to a set of current sensors for receiving and processing current; the other signal processing module is connected to a set of voltage sensors for receiving and processing voltage signals.

[0032] Specifically, both the first signal processing module 6 and the second signal processing module 7 include a signal amplification unit, an analog-to-digital conversion unit, and a microprocessor.

[0033] In one implementation, the signal amplification unit uses Texas Instruments INA219, the analog-to-digital conversion unit uses Analog Devices AD7606, and the microprocessor uses the STM32F4 series.

[0034] It should be noted that the signal processing module includes a signal amplification unit, an analog-to-digital conversion unit, and a high-performance microprocessor. Among them, the signal amplification unit is used to amplify the signal output by the current / voltage sensor, the analog-to-digital conversion unit converts the amplified analog signal into a digital signal, and the high-performance microprocessor calculates the real-time power of the energy storage battery through complex algorithms, and performs data correction and filtering processing to eliminate noise and interference, ensuring the high precision and stability of the power data, and controlling the operation of the display module 9 and the alarm module 10.

[0035] The display module 9 is connected to the data synchronization module 8, and the alarm module 10 is connected to the data synchronization module 8.

[0036] Among them, the display module 9 is used to display the detection results in real time; the data synchronization module 8 is used to synchronize and compare the detection data of the two systems. If the detection results are consistent, the power data is normally displayed; if the detection results are inconsistent, the alarm module 10 is triggered to send an alarm signal.

[0037] In summary, a power safety detection device for an energy storage battery provided by an embodiment of the present invention includes a set of current sensors and a set of voltage sensors for detecting the current and voltage of the energy storage battery; two signal processing units respectively receive and process the signals of the corresponding sensors to calculate the power of the energy storage battery; the data synchronization module 8 is used to synchronize and compare the detection data of the two sets of sensor detection systems; two power modules respectively supply power to the two sets of detection systems. The embodiment of the present invention has a dual power detection function, which ensures the high precision of power detection. At the same time, it also effectively prevents potential malicious attacks through data synchronization, improving the safety and reliability of the power safety detection device for the energy storage battery.

[0038] In one embodiment, the housing 1 is made of corrosion-resistant material.

[0039] It is worth noting that the housing 1 is used to protect the internal components and prevent the influence of the external environment on the detection device. Therefore, the housing material is selected as a high-strength and corrosion-resistant material, which can have good heat dissipation performance and waterproof and dustproof characteristics, ensuring the reliability of the device in a harsh environment.

[0040] In one embodiment, both the first power module 2 and the second power module 3 include a power management circuit and a backup battery pack;

[0041] The power management circuit uses Texas Instruments TPS7A4700, and the backup battery pack uses Panasonic CR123A lithium batteries.

[0042] Two power modules supply power to the current / voltage sensor and the subsequent detection module respectively. The power management circuit is used to manage the charging and discharging of the battery pack and provide stable power for each component.

[0043] It should be noted that each power module includes an efficient power management circuit and a backup battery pack, which can provide uninterrupted power supply in case of main power failure. The power management circuit has overvoltage, overcurrent, and short-circuit protection functions to ensure the safety and stability of the power system. The backup battery pack uses high-energy-density lithium batteries, which have long-time power supply capacity and fast charging characteristics, and can ensure the continuous operation of the detection device in case of emergency.

[0044] In one embodiment, both the current sensor module 4 and the voltage sensor module 5 include Hall effect sensors and voltage divider circuits;

[0045] Among them, the Hall effect sensor uses Allegro ACS712, and the voltage divider circuit uses Vishay Dale RN60D resistors.

[0046] It should be noted that using high-precision Hall effect sensors and voltage divider circuits can ensure the accurate acquisition of current and voltage signals and further improve the accuracy of the detection device.

[0047] Optionally, the current sensor module 4 can include several current sensors, and the voltage sensor module 5 can include several voltage sensors.

[0048] In one embodiment, the data synchronization module 8 uses Microchip 24LC256.

[0049] It should be noted that the data synchronization module is mainly used to synchronize the detection data of two sets of detection systems and perform cross-verification. Therefore, the data synchronization module needs to have an efficient data comparison algorithm to compare the power data output by the two signal processing units in real time. If data inconsistency is detected, the data synchronization module will record the abnormal information and notify the alarm unit. In the embodiment of the present utility model, using Microchip 24LC256 as the data synchronization module can also have a data recording function, which can store historical detection data for subsequent analysis and fault tracing.

[0050] In one embodiment, before and after the failure of the current or voltage sensor system, the functions and mechanisms of the data synchronization module need to be adjusted to ensure the accuracy and consistency of the data. The specific description is as follows:

[0051] (1) In the normal working state:

[0052] When both sets of sensor systems are operating normally, the data synchronization module will receive current and voltage data from both sets of sensors (current / voltage sensors) simultaneously, and perform comparison, verification, and comprehensive processing to ensure the accuracy and reliability of the data. If the data is consistent, the data is confirmed to be valid; if there are deviations, data fusion or alarm processing is performed.

[0053] (2) After a single set of sensors fails:

[0054] When one set of sensor systems fails, the data synchronization module will receive a failure signal and enter the single-sensor system working mode. At this time, the data synchronization module will stop receiving data from the failed sensor system and rely entirely on the data of the normally operating sensor system. In the single-sensor system working mode, the data synchronization module will still process the received data, including filtering, amplification, digitization, and possible calibration, to ensure the accuracy of the data. In the single-sensor system working mode, although redundancy is lost, the data synchronization module still needs to strictly verify and process the received data to prevent data errors caused by a single-system failure.

[0055] (3) Fault recording and alarm:

[0056] While detecting failures, the data synchronization module will also record the time and specific circumstances of the failure and trigger an alarm signal so that maintenance personnel can perform repairs or replacements in a timely manner. The system will enter the fault recording mode and detail all data and status during the operation of the single system for subsequent analysis and fault troubleshooting.

[0057] (4) Redundancy recovery mechanism:

[0058] After the faulty sensor system is repaired or replaced, the data synchronization module will re-perform system detection to confirm that both systems have resumed normal operation. After the redundancy recovery mechanism is restored, the data synchronization module will start receiving data synchronously from both systems again and return to the normal comparison, verification, and fusion mode.

[0059] In one embodiment, the alarm module 10 includes an alarm and a remote alarm unit, and the alarm uses Mallory Sonalert SC110.

[0060] It should be noted that the alarm module is connected to the data synchronization module and is mainly used to trigger an alarm when the detected data is inconsistent or the system fails. Its alarm can be an audible and visual alarm Mallory Sonalert SC110, and the audible and visual alarm sounds an alarm on-site to alert the operator. Its remote alarm module can send alarm information to the remote monitoring center or the administrator's mobile phone through wireless communication methods (such as WiFi, GPRS) to ensure timely countermeasures are taken to prevent the expansion of the failure.

[0061] In one embodiment, the display module 9 adopts an LCD screen.

[0062] It should be noted that the display module adopts a high-definition LCD screen, which can intuitively display the current, voltage, power of the energy storage battery and the system status information. At the same time, the display interface is user-friendly, providing multiple display modes (such as graphic mode, numerical mode), and users can switch according to their needs. In addition, the display module in the embodiment of the present utility model also has a touch function, and users can set parameters and query data through the touch screen.

[0063] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. A power safety detection device for an energy storage battery, characterized in that, It includes a housing, a first power module, a second power module, a current sensor module, a voltage sensor module, a first signal processing module, a second signal processing module, a data synchronization module, a display module, and an alarm module; The first power module is connected to the current sensor module, the current sensor module is connected to the first signal processing module, and the first signal processing module is connected to the data synchronization module; The second power module is connected to the voltage sensor module, the voltage sensor module is connected to the second signal processing module, and the second signal processing module is connected to the data synchronization module; The display module is connected to the data synchronization module, and the alarm module is connected to the data synchronization module.

2. The power safety detection device for energy storage batteries according to claim 1, wherein The first power module and the second power module are independent of each other, the current sensor module and the voltage sensor module are independent of each other, and the first signal processing module and the second signal processing module are independent of each other.

3. The power safety detection device for energy storage batteries according to claim 1, wherein, The housing is made of corrosion-resistant material.

4. The power safety detection device for energy storage batteries according to claim 1, wherein, Both the first power module and the second power module include a power management circuit and a backup battery pack; The power management circuit uses Texas Instruments TPS7A4700, and the backup battery pack uses Panasonic CR123A lithium battery.

5. The power safety detection device for energy storage batteries according to claim 1, characterized in that, Both the current sensor module and the voltage sensor module include a Hall effect sensor and a voltage divider circuit; The Hall effect sensor uses Allegro ACS712, and the voltage divider circuit uses Vishay Dale RN60D resistor.

6. The power safety detection device for energy storage batteries according to claim 1, characterized in that Both the first signal processing module and the second signal processing module include a signal amplification unit, an analog-to-digital conversion unit, and a microprocessor.

7. The power safety detection device for energy storage batteries according to claim 6, characterized in that, The signal amplification unit uses Texas Instruments INA219, the analog-to-digital conversion unit uses Analog Devices AD7606, and the microprocessor uses STM32F4 series.

8. The power safety detection device for energy storage batteries according to claim 1, characterized in that, The data synchronization module uses Microchip 24LC256.

9. The power safety detection device for energy storage batteries according to claim 1, characterized in that The alarm module includes an alarm and a remote alarm unit, and the alarm uses Mallory Sonalert SC110.

10. The power safety detection device for energy storage batteries according to claim 1, characterized in that, The display module uses an LCD screen.

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