Energy storage PACK active safety monitoring system

Abstract

The utility model relates to the technical field of energy storage PACK safety monitoring, and discloses an energy storage PACK active safety monitoring system, which comprises an air pressure monitoring module, a temperature and voltage monitoring module and a battery management module, and is characterized in that the air pressure monitoring module is used for monitoring the air pressure in a battery cell, and the temperature and voltage monitoring module is used for monitoring the temperature and voltage of the battery cell; the battery management module comprises a first battery management unit and a second battery management unit, the air pressure monitoring module is electrically connected with the first battery management unit, and the temperature voltage monitoring module is electrically connected with the second battery management unit. The energy storage PACK has the following technical effects that the air pressure monitoring module is arranged to monitor the air pressure in the battery cell in real time, so that the change of the air pressure in the battery cell can be actively monitored, sufficient reaction time is reserved for dealing with safe out-of-control, the occurrence of safety accidents is effectively prevented, the use safety of the energy storage PACK is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage PACK safety monitoring technology, specifically relating to an active safety monitoring system for energy storage PACK. Background Technology

[0002] With the rapid development of the energy storage industry, safety has become an extremely important aspect of energy storage packs, significantly determining their market competitiveness. Currently, commercially available energy storage packs exhibit a certain lag in their safety management, leading to high response costs and often irreversible consequences in the event of a safety incident. For example, installing fire detectors inside energy storage packs can trigger fire suppression measures, such as releasing perfluorohexanone (PFH) into the pack to prevent fires, by sensing changes in temperature, specific gases, and smoke within the pack and triggering fire suppression systems when these changes reach certain thresholds. However, energy storage packs with implemented fire suppression measures are often irreparable and require replacement and reinstallation of fire suppression systems, resulting in high maintenance costs. Therefore, improving safety early warning and control mechanisms for energy storage packs during use is of paramount importance. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides an active safety monitoring system for energy storage PACKs. By setting up a pressure monitoring module to monitor the internal pressure of the battery cells in real time, it can actively monitor changes in the internal pressure of the battery cells, reserve sufficient reaction time to deal with safety runaway, effectively prevent safety accidents, improve the safety of energy storage PACKs, and reduce maintenance costs.

[0004] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0005] This utility model provides an active safety monitoring system for an energy storage PACK. The energy storage PACK includes multiple battery modules arranged in sequence, and each battery module includes multiple cells arranged in sequence. The cells are connected in series or in parallel. The system includes a pressure monitoring module, a temperature and voltage monitoring module, and a battery management module. The pressure monitoring module is used to monitor the pressure inside the cell, and the temperature and voltage monitoring module is used to monitor the temperature and voltage of the cell.

[0006] The battery management module includes a first battery management unit and a second battery management unit. The air pressure monitoring module is electrically connected to the first battery management unit, and the temperature and voltage monitoring module is electrically connected to the second battery management unit.

[0007] As a further description of the technical solution of this utility model, the air pressure monitoring module includes a plurality of air pressure monitoring devices, each of which is correspondingly disposed on one of the battery cells, and the air pressure monitoring devices are electrically connected to the first battery management unit.

[0008] As a further description of the technical solution of this utility model, each of the air pressure monitoring devices is connected to a first wiring harness, and the first wiring harness located in the same battery module is connected to the first battery management unit through the same connector.

[0009] As a further description of the technical solution of this utility model, the temperature and voltage monitoring module includes multiple temperature monitoring devices and multiple voltage acquisition harnesses, wherein the temperature monitoring devices are in contact with the battery cell, and the voltage acquisition harnesses are connected to the battery cell;

[0010] Each of the temperature monitoring devices is connected to a second wiring harness. The voltage acquisition wiring harness and the second wiring harness located in the same battery module are connected to the second battery management unit through the same connector.

[0011] As a further description of the technical solution of this utility model, in the same battery module, the number of voltage acquisition harnesses matches the number of battery cells, and the number of temperature monitoring devices is less than or equal to the number of battery cells.

[0012] As a further description of the technical solution of this utility model, the temperature monitoring device is a thermistor.

[0013] As a further description of the technical solution of this utility model, it also includes a communication module, wherein both the first battery management unit and the second battery management unit are electrically connected to the communication module.

[0014] As a further description of the technical solution of this utility model, the communication module includes a first communication connector and a second communication connector, and the first battery management unit and the second battery management unit are electrically connected to the first communication connector and the second communication connector, respectively.

[0015] As a further description of the technical solution of this utility model, the energy storage PACK also includes a blister board and a conductive busbar connected as one unit, and the cells are connected in series or in parallel through the conductive busbar. The air pressure monitoring module and the temperature and voltage monitoring module are both fixed on the blister board.

[0016] As a further description of the technical solution of this utility model, the battery management module also includes a mounting plate, on which both the first battery management unit and the second battery management unit are disposed.

[0017] In summary, this utility model has at least the following advantages:

[0018] The active safety monitoring system for energy storage PACK provided by this utility model monitors the internal air pressure of the battery cells in real time using an air pressure monitoring module. This allows for the advance collection of internal air pressure parameters and monitoring of pressure changes within the cells, providing sufficient reaction time to address potential safety incidents. When abnormal data is detected, the system can promptly stop the operation of the energy storage PACK, effectively preventing safety accidents and improving the safety of energy storage PACK usage. By providing proactive safety warnings and control measures for the energy storage PACK, the system effectively maintains its normal performance and reduces maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the active safety monitoring system for energy storage PACK according to Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the air pressure monitoring device in Embodiment 1 of this utility model;

[0021] Figure 3 for Figure 1 Enlarged view of section A;

[0022] Figure 4 This is a schematic diagram of the communication module in Embodiment 2 of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the vacuum forming plate and conductive busbar in Embodiment 3 of this utility model;

[0024] Figure 6 This is a schematic diagram of the mounting plate of Embodiment 3 of this utility model.

[0025] Marked in the image:

[0026] 1. Barometric pressure monitoring module; 11. Barometric pressure monitoring device;

[0027] 2. Temperature and voltage monitoring module; 21. Temperature monitoring device;

[0028] 3. Battery management module; 31. First battery management unit; 32. Second battery management unit; 33. Mounting plate;

[0029] 4. Communication module; 41. First communication connector; 42. Second communication connector;

[0030] 100. Battery module; 200. Battery cell; 300. Vacuum forming board; 400. Conductive busbar. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] refer to Figures 1 to 3 The energy storage PACK active safety monitoring system provided in this embodiment includes multiple battery modules 100 arranged in sequence, and each battery module 100 includes multiple battery cells 200 arranged in sequence, with the battery cells 200 connected in series or parallel. The energy storage PACK active safety monitoring system includes a pressure monitoring module 1, a temperature and voltage monitoring module 2, and a battery management module 3. The pressure monitoring module 1 is used to monitor the internal pressure of the battery cell 200, and the temperature and voltage monitoring module 2 is used to monitor the temperature and voltage of the battery cell 200.

[0035] The battery management module 3 includes a first battery management unit 31 and a second battery management unit 32. The pressure monitoring module 1 is electrically connected to the first battery management unit 31, and the temperature and voltage monitoring module 2 is electrically connected to the second battery management unit 32. The first battery management unit 31 is used to collect and manage the pressure data of the battery cell 200, and the second battery management unit 32 is used to collect and manage the temperature and voltage data of the battery cell 200, so as to realize real-time monitoring of the pressure, temperature, and voltage changes of the energy storage PACK.

[0036] By using both the air pressure monitoring module 1 and the temperature and voltage monitoring module 2 to monitor the internal air pressure of the battery cell 200 in real time, the internal air pressure, temperature, and voltage parameters of the battery cell 200 can be collected in advance. This allows for real-time monitoring of changes in these parameters, providing sufficient reaction time to address potential safety hazards. When abnormal data is detected, the operation of the energy storage PACK can be stopped promptly, effectively preventing safety accidents and improving the safety of the energy storage PACK. Through proactive safety warnings and control measures, the normal performance of the energy storage PACK is effectively maintained, reducing maintenance costs.

[0037] In some embodiments, the air pressure monitoring module 1 includes a plurality of air pressure monitoring devices 11, each air pressure monitoring device 11 being disposed on a battery cell 200, specifically located between the positive and negative terminals of the battery cell 200. The air pressure monitoring device 11 is electrically connected to the first battery management unit 31 to transmit the air pressure data information of the battery cell 200 to the first battery management unit 31.

[0038] Specifically, each pressure monitoring device 11 is connected to a first wiring harness, which is used to output the pressure data monitored by the pressure monitoring device 11. All the first wiring harnesses located in the same battery module 100 are connected to the first battery management unit 31 through the same connector to transmit the pressure data information monitored by the pressure monitoring device 11 to the first battery management unit 31.

[0039] In some embodiments, the temperature and voltage monitoring module 2 includes multiple temperature monitoring devices 21 and multiple voltage acquisition harnesses. The temperature monitoring devices 21 are in close contact with the battery cell 200 to sense and monitor the temperature of the battery cell 200 in real time. The voltage acquisition harnesses are electrically connected to the battery cell 200 to acquire voltage data information of the battery cell 200 in real time. Each temperature monitoring device 21 is connected to a second harness, which is used to output the temperature data monitored by the temperature monitoring device 21. All voltage acquisition harnesses and all second harnesses located in the same battery module 100 are connected to the second battery management unit 32 through the same connector to transmit temperature and voltage data information to the second battery management unit 32.

[0040] It should be noted that in the same battery module 100, the number of voltage acquisition harnesses matches the number of battery cells 200, and the number of temperature monitoring devices 21 is less than or equal to the number of battery cells 200. That is, the temperature and voltage monitoring module 2 monitors the voltage of each battery cell 200 in real time, and can also choose to monitor the temperature of each battery cell 200 in real time or monitor the temperature of some battery cells 200 in real time according to the specific situation.

[0041] In this embodiment, the temperature monitoring device 21 is a thermistor. Using a thermistor as the temperature monitoring device 21 can improve the sensitivity of the temperature detection of the battery cell 200, making the temperature monitoring results of the battery cell 200 more accurate and reliable, thereby improving the reliability of the active safety monitoring system of the energy storage PACK.

[0042] The active safety monitoring system for energy storage PACK in this embodiment monitors the internal air pressure of the battery cell in real time using an air pressure monitoring module and the temperature and voltage of the battery cell in real time using a temperature and voltage monitoring module. This allows for real-time monitoring of changes in the internal air pressure, temperature, and voltage of the battery cell, providing sufficient reaction time to address potential safety incidents and effectively preventing accidents, thus improving the safety of the energy storage PACK. By providing proactive safety warnings and control measures for the energy storage PACK, the system effectively maintains the normal performance of the energy storage PACK and reduces safety maintenance costs. Furthermore, by using a thermistor as the temperature monitoring device, the sensitivity of the battery cell temperature detection is improved, making the temperature monitoring results more accurate and reliable, which in turn enhances the reliability of the active safety monitoring system for the energy storage PACK.

[0043] Example 2

[0044] As a further optimization of Example 1, refer to Figure 4 The energy storage PACK active safety monitoring system also includes a communication module 4. The first battery management unit 31 and the second battery management unit 32 are both electrically connected to the communication module 4, so that the air pressure, temperature and voltage data information collected by the first battery management unit 31 and the second battery management unit 32 can be synchronously transmitted to the communication module 4 to realize information interaction with external systems.

[0045] The communication module 4 includes a first communication connector 41 and a second communication connector 42. The first battery management unit 31 and the second battery management unit 32 are electrically connected to the first communication connector 41 and the second communication connector 42 respectively through a connecting harness. At the same time, the first communication connector 41 and the second communication connector 42 are electrically connected to an external system, thereby realizing information interaction between the energy storage PACK active safety monitoring system and the external system.

[0046] Example 3

[0047] As a further optimization of Example 2, refer to Figures 5 to 6 The energy storage PACK also includes a thermoformed plate 300 and a conductive busbar 400 that are heat-riveted together. Each battery cell 200 is connected in series or in parallel through the conductive busbar 400. The air pressure monitoring module 1 and the temperature and voltage monitoring module 2 are both fixed on the thermoformed plate 300.

[0048] Specifically, the conductive busbar 400 is an aluminum busbar, and the electrodes of two adjacent cells 200 are welded to the same aluminum busbar to achieve electrical connection between the cells 200. A temperature monitoring device 21 is welded to the aluminum busbar and in close contact with the cell 200 to sense and monitor the temperature of the cell 200. A second wiring harness is connected to the temperature monitoring device 21 and fixed to the blister pack 300. One end of the voltage acquisition wiring harness is welded to the aluminum busbar via a nickel strip to acquire voltage data from the cell 200, and the main body of the voltage acquisition wiring harness is fixed to the blister pack 300. The blister pack 300 acts as a connecting carrier, connecting all components into a whole, which helps improve the stability of the energy storage PACK active safety monitoring system.

[0049] In some embodiments, the battery management module 3 further includes a mounting plate 33, on which the first battery management unit 31 and the second battery management unit 32 are both disposed. In this embodiment, the mounting plate 33 is a sheet metal structure, and the first battery management unit 31 and the second battery management unit 32 are respectively disposed on two opposite sides of the mounting plate 33. This reduces the space occupied by the battery management module 3, thereby helping to reduce the volume of the energy storage PACK.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0052] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. An active safety monitoring system for an energy storage PACK, wherein the energy storage PACK includes a plurality of battery modules (100) arranged in sequence, each battery module (100) including a plurality of battery cells (200) arranged in sequence, wherein the battery cells (200) are connected in series or in parallel, characterized in that, It includes a pressure monitoring module (1), a temperature and voltage monitoring module (2) and a battery management module (3). The pressure monitoring module (1) is used to monitor the pressure inside the battery cell (200), and the temperature and voltage monitoring module (2) is used to monitor the temperature and voltage of the battery cell (200). The battery management module (3) includes a first battery management unit (31) and a second battery management unit (32). The air pressure monitoring module (1) is electrically connected to the first battery management unit (31), and the temperature and voltage monitoring module (2) is electrically connected to the second battery management unit (32).

2. The active safety monitoring system for energy storage PACK according to claim 1, characterized in that, The air pressure monitoring module (1) includes multiple air pressure monitoring devices (11), each of which is disposed on a battery cell (200), and the air pressure monitoring device (11) is electrically connected to the first battery management unit (31).

3. The active safety monitoring system for energy storage PACK according to claim 2, characterized in that, Each of the pressure monitoring devices (11) is connected to a first wiring harness, and the first wiring harness located in the same battery module (100) is connected to the first battery management unit (31) through the same connector.

4. The active safety monitoring system for energy storage PACK according to claim 1, characterized in that, The temperature and voltage monitoring module (2) includes multiple temperature monitoring devices (21) and multiple voltage acquisition harnesses. The temperature monitoring devices (21) are in contact with the battery cell (200), and the voltage acquisition harnesses are connected to the battery cell (200). Each of the temperature monitoring devices (21) is connected to a second wiring harness. The voltage acquisition wiring harness and the second wiring harness located in the same battery module (100) are connected to the second battery management unit (32) through the same connector.

5. The active safety monitoring system for energy storage PACK according to claim 4, characterized in that, In the same battery module (100), the number of voltage acquisition harnesses matches the number of battery cells (200), and the number of temperature monitoring devices (21) is less than or equal to the number of battery cells (200).

6. The active safety monitoring system for energy storage PACK according to claim 4, characterized in that, The temperature monitoring device (21) is a thermistor.

7. The active safety monitoring system for energy storage PACK according to claim 1, characterized in that, It also includes a communication module (4), and the first battery management unit (31) and the second battery management unit (32) are both electrically connected to the communication module (4).

8. The active safety monitoring system for energy storage PACK according to claim 7, characterized in that, The communication module (4) includes a first communication connector (41) and a second communication connector (42), and the first battery management unit (31) and the second battery management unit (32) are electrically connected to the first communication connector (41) and the second communication connector (42) respectively.

9. The active safety monitoring system for energy storage PACK according to claim 1, characterized in that, The energy storage PACK also includes a blister pack (300) and a conductive busbar (400) connected as one unit. Each of the battery cells (200) is connected in series or in parallel through the conductive busbar (400). The air pressure monitoring module (1) and the temperature and voltage monitoring module (2) are both fixed on the blister pack (300).

10. The active safety monitoring system for energy storage PACK according to claim 1, characterized in that, The battery management module (3) also includes a mounting plate (33), on which the first battery management unit (31) and the second battery management unit (32) are both disposed.

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