Fire extinguishing system of battery cluster

Abstract

The utility model discloses a fire extinguishing system of a battery cluster. The fire extinguishing system comprises a plurality of fire extinguishing processing modules, a plurality of first pipelines, a plurality of branch control valves and a second pipeline, the outlet ends of the first pipelines are in one-to-one correspondence with the battery packs, the inlet ends of the first pipelines are connected with the outlet ends of the second pipelines through the branch control valves, and the inlet ends of the second pipelines are connected with the fire extinguishing agent container. The fire-fighting processing modules and the battery packs are arranged in a one-to-one correspondence mode, the signal acquisition ends of the fire-fighting processing modules are arranged on the battery packs, and the signal control ends of the fire-fighting processing modules are electrically connected with the branch control valves. Thus, when the fire-fighting processing module detects that the environment information of the corresponding battery pack is larger than the preset information, it is determined that a fire breaks out in the battery pack, and then the corresponding branch control valve is controlled to be opened, so that the fire extinguishing agent in the fire extinguishing agent container is accurately sprayed to the battery pack, the accuracy and the utilization rate of the fire-fighting system are improved, and the fire extinguishing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of battery fire safety technology, and in particular to a fire protection system for battery clusters. Background Technology

[0002] Most existing fire protection designs for energy storage systems adopt cluster-level fire protection, with each cluster containing eight battery packs. When one battery pack malfunctions, the fire protection system activates and sprays all the extinguishing agents, covering the entire battery pack. This design suffers from high losses, poor precision, and an inability to accurately spray the agents to the ignition point, resulting in low utilization of the fire extinguishing system. Utility Model Content

[0003] This invention provides a fire suppression system for battery clusters, which can achieve precise fire suppression, improve the accuracy and utilization rate of the fire suppression system, and achieve better fire suppression effect.

[0004] In a first aspect, this utility model embodiment provides a fire protection system for a battery cluster, which includes multiple fire treatment modules, multiple first pipes, multiple sub-control valves, and a second pipe;

[0005] The outlet end of the first pipe is configured to correspond one-to-one with the battery pack, the inlet end of the first pipe is connected to the outlet end of the second pipe through the sub-control valve, and the inlet end of the second pipe is connected to the fire extinguishing agent container.

[0006] The fire protection module is configured in a one-to-one correspondence with the battery pack, and the signal acquisition terminal of the fire protection module is located on the battery pack. The signal control terminal of the fire protection module is electrically connected to the sub-control valve.

[0007] Optionally, the battery pack includes a battery body, and the fire-fighting module is disposed on the battery body.

[0008] Optionally, the fire protection system further includes multiple connection modules, each corresponding to a battery pack;

[0009] The connection module includes a first communication interface;

[0010] In the corresponding battery pack and the connection module, the signal control terminal is electrically connected to the first communication interface via a first connection line, and the first communication interface is electrically connected to the corresponding sub-control valve via a second connection line.

[0011] Optionally, the connection module further includes a second communication interface;

[0012] The battery pack includes a battery management device;

[0013] In the corresponding battery pack and connection module, the battery management device is electrically connected to the second communication interface via a third connection line;

[0014] The second communication interface in the adjacent connection module is electrically connected via a fourth connection line.

[0015] Optionally, the first connecting line and the third connecting line are integrated.

[0016] Optionally, the connection module further includes a nozzle device, which is connected to the outlet end of the first pipe.

[0017] Optionally, the connection module further includes a maintenance switch, which is disposed in the circuit between the input and output terminals of the maintenance device, and the signal control terminal of the fire handling module is also electrically connected to the control terminal of the maintenance switch.

[0018] Optionally, the signal acquisition terminal of the fire protection processing module includes at least one of a temperature signal acquisition terminal and a smoke signal acquisition terminal.

[0019] Optionally, the extinguishing agent container and the second pipe are both located outside the battery cluster, while the first pipe is located inside the battery cluster.

[0020] Optionally, the fire suppression system of the battery cluster may also include a main control valve;

[0021] The inlet end of the second pipeline is connected to the extinguishing agent container via the main control valve.

[0022] In summary, the fire protection system in this embodiment includes multiple fire-fighting modules, multiple first pipes, multiple sub-control valves, and one second pipe. The outlet of each first pipe corresponds to a battery pack, and the inlet of each first pipe is connected to the outlet of the second pipe via a sub-control valve. The inlet of the second pipe is connected to the extinguishing agent container. Each fire-fighting module corresponds to a battery pack, and the signal acquisition terminal of the fire-fighting module is located on the battery pack. The signal control terminal of the fire-fighting module is electrically connected to the sub-control valve. Thus, when the fire-fighting module detects that the environmental information of the corresponding battery pack is greater than a preset value, it determines that a fire has occurred inside the battery pack and controls the corresponding sub-control valve to open, allowing the extinguishing agent in the extinguishing agent container to be accurately sprayed onto the battery pack, improving the accuracy and utilization rate of the fire protection system and resulting in better fire extinguishing effect. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of a battery cluster fire protection system provided in an embodiment of this utility model. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, although the drawings described below are some specific embodiments of this utility model, those skilled in the art can extend and extend to other structures and drawings based on the basic concepts of the device structure, driving method and manufacturing method disclosed and indicated by the various embodiments of this utility model. Undoubtedly, these should all be within the scope of the claims of this utility model.

[0025] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0026] Figure 1 This is an overall structural diagram of a battery cluster fire protection system provided in an embodiment of this utility model. (See diagram below.) Figure 1 As shown, the fire protection system includes multiple fire control modules 10, multiple first pipes 20, multiple sub-control valves 30, and one second pipe 40. The outlet of each first pipe 20 corresponds to a battery pack 01, and the inlet of each first pipe 20 is connected to the outlet of the second pipe 40 via a sub-control valve 30. The inlet of the second pipe 40 is connected to an extinguishing agent container (not shown in the figure). Each fire control module 10 corresponds to a battery pack 01, and the signal acquisition terminal of the fire control module 10 is located on the battery pack 01. The signal control terminal of the fire control module 10 is electrically connected to the sub-control valve 30.

[0027] Specifically, a battery cluster includes multiple battery packs 01, each of which may contain battery modules or individual battery cells. Multiple battery packs 01 can be managed according to a specific arrangement. For example, such as... Figure 1As shown, multiple battery packs 01 are stacked within a cabinet, which includes multiple placement spaces, with each battery pack 01 positioned within a corresponding space. The fire protection system includes multiple fire control modules 10, multiple first pipes 20, multiple sub-control valves 30, and one second pipe 40. Each fire control module 10 integrates signal acquisition and signal processing functions. The multiple fire control modules 10 are configured one-to-one with each battery pack 01, and the signal acquisition terminal of the fire control module 10 is located on the battery pack 01. The signal control terminal of the fire control module 10 is electrically connected to the sub-control valve 30. The fire control module 10 then controls the sub-control valve to open based on a comparison between the detected environmental information of the battery pack 01 and preset information. The first pipe 20, second pipe 40, and sub-control valve 30 are all used to control the flow direction of the extinguishing agent in the extinguishing agent container. Specifically, the first pipe 30 can be a branch pipe for the extinguishing agent, and the second pipe 40 can be a main pipe for the extinguishing agent. The first pipe 30 includes an inlet and an outlet, and the second pipe 40 includes an inlet and multiple outlets. The inlet of the second pipe 40 is connected to the extinguishing agent container, and the multiple outlets of the second pipe 40 are connected to the inlet of multiple first pipes 20 through multiple sub-control valves 30. The outlets of the multiple first pipes 20 are respectively set to correspond one-to-one with multiple battery packs 01. Therefore, when the sub-control valve 30 corresponding to the battery pack 01 is opened, the first pipe 20 and the corresponding second pipe 40 are connected, so that the extinguishing agent in the extinguishing agent container is sprayed towards the corresponding battery pack 01 through the first pipe 20 and the corresponding second pipe 40.

[0028] For example, let the topmost storage space in the cabinet be the fire-extinguishing storage space. Within this space, the battery pack 01, the fire suppression module 10, and the sub-control valve 30 are respectively the first battery pack and the first fire suppression module. Furthermore, the first pipe 20 corresponding to the first battery pack is the fire-extinguishing pipe, and the sub-control valve 30 connected to it is the first sub-control valve. When the first fire suppression module detects that the environmental information of the first battery pack is greater than a preset value, it determines that a fire has occurred inside the battery pack and then controls the first sub-control valve to open. This allows the fire extinguishing agent in the extinguishing agent container to be sprayed onto the first battery pack through the second pipe 40, the first sub-control valve, and the fire-extinguishing pipe, thus achieving precise fire suppression, improving the accuracy and utilization rate of the fire protection system, and resulting in better fire suppression effects.

[0029] It should be noted that the signal acquisition terminal of the fire protection module 10 includes at least one of a temperature signal acquisition terminal, a combustible gas signal acquisition terminal, and a smoke detection signal acquisition terminal. That is, the fire protection module 10 detects at least one of the environmental information of the battery pack 01, including temperature information, combustible gas concentration, and smoke concentration information. Furthermore, when the fire protection module 10 detects that the temperature of the battery pack 01 is greater than a preset temperature information, and / or detects that the smoke concentration of the battery pack 01 is greater than a preset concentration information, it controls the corresponding sub-control valve 30 to open.

[0030] In summary, the fire protection system in this embodiment includes multiple fire-fighting modules, multiple first pipes, multiple sub-control valves, and one second pipe. The outlet of each first pipe corresponds to a battery pack, and the inlet of each first pipe is connected to the outlet of the second pipe via a sub-control valve. The inlet of the second pipe is connected to the extinguishing agent container. Each fire-fighting module corresponds to a battery pack, and the signal acquisition terminal of the fire-fighting module is located on the battery pack. The signal control terminal of the fire-fighting module is electrically connected to the sub-control valve. Thus, when the fire-fighting module detects that the environmental information of the corresponding battery pack is greater than a preset value, it determines that a fire has occurred inside the battery pack and controls the corresponding sub-control valve to open, allowing the extinguishing agent in the extinguishing agent container to be accurately sprayed onto the battery pack, improving the accuracy and utilization rate of the fire protection system and resulting in better fire extinguishing effect.

[0031] Optionally, based on the above embodiments, see also... Figure 1 The battery pack 01 includes a battery body (not shown in the figure), and the fire protection module 10 is mounted on the battery body. Specifically, the battery pack 01 may include a battery body and a battery management device, and the fire protection module 10 is mounted on the battery body. That is, the signal acquisition terminal of the fire protection module 10 is located on the battery body, which can more accurately detect the environmental information of the battery pack and further improve the accuracy of the fire protection system's judgment.

[0032] Optional, see below Figure 1 The fire protection system also includes multiple connection modules 50, each corresponding to a battery pack 01. Each connection module 50 includes a first communication interface 510. In the corresponding battery pack 01 and connection module 50, the signal control terminal is electrically connected to the first communication interface 510 via a first connection line 610, and the first communication interface 510 is electrically connected to the corresponding sub-control valve 30 via a second connection line 620.

[0033] Specifically, within the same placement space of the cabinet, a connection module 50 corresponding to the battery pack 01 is also included. The connection module 50 provides electrical connection between the internal and external parts of the battery pack. For example, the connection module 50 includes a first communication interface 510, which is used to connect the corresponding sub-control valves 30 and the fire control module 10 to achieve communication between the fire control module 10 and the sub-control valves 30. The signal control terminal of the fire control module 10 is electrically connected to the first communication interface 510 via a first connection line 610, and the corresponding sub-control valve 30 is electrically connected to the first communication interface 510 via a second connection line 620. Thus, when the fire control module 10 detects that the environmental information of the battery pack 01 is greater than a preset information, it can send a control signal to the corresponding sub-control valve 30 to open the sub-control valve 30 for fire extinguishing.

[0034] Optional, see below Figure 1 The connection module 50 also includes a second communication interface 520. The battery pack 01 includes a battery management device (not shown). In the correspondingly configured battery pack 01 and connection module 50, the battery management device is electrically connected to the second communication interface 520 via a third connection line 630. The second communication interface 520 of the adjacent connection module 50 is electrically connected via a fourth connection line 640.

[0035] Specifically, battery pack 01 also includes a battery management device, which is used for intelligent maintenance and management of each battery unit to prevent over-discharge or over-charge of the battery units. The battery management devices in each battery pack 01 need to be interconnected, and this is achieved through the second communication interface 520 in the connection module 50. For example, in the same placement space, the battery management devices are electrically connected through a third connection line 630 and the second communication interface 520. The second communication interfaces 520 in two adjacent placement spaces are electrically connected through a fourth connection line 640, thereby achieving interconnection between the battery management devices in each battery pack 01 and ensuring the normal operation of the battery management devices in the battery pack 01.

[0036] Optionally, based on the above embodiments, the first connecting line 610 and the third connecting line 630 are integrated. Specifically, the first connecting line 610 led out from the fire protection module 10 and the third connecting line 630 led out from the battery management device are integrated, so that there is only one connecting line led out from the battery pack 01, thereby reducing wiring, saving installation space and cost, and improving energy density and equipment integration.

[0037] Optional, see below Figure 1The connection module 50 also includes a nozzle device 530, which is connected to the outlet end of the first pipe 20. Therefore, when the fire suppression module 10 detects that the environmental information of the battery pack 01 is greater than the preset information and controls the corresponding sub-control valve 30 to open, the extinguishing agent can be evenly sprayed onto the battery pack 01 through the corresponding sub-control valve 30, the first pipe 20, and the nozzle device 530, resulting in a better fire suppression effect.

[0038] Optional, see below Figure 1 The connection module 50 also includes a maintenance switch 540, which is located in the circuit between the input and output terminals of the maintenance device (not shown in the figure). The signal control terminal of the fire handling module 10 is also electrically connected to the control terminal of the maintenance switch 540.

[0039] Specifically, the connecting device 50 also includes a maintenance switch 540, which is located in the circuit between the input and output terminals of the external maintenance device. This maintenance switch 540 is used to control the maintenance device to perform maintenance on the battery pack 01. For example, the maintenance switch 540 is electrically connected to the signal control terminal of the fire control module 10. When the fire control module 10 detects that the environmental information of the battery pack 01 is greater than a preset value and controls the corresponding sub-control valve 30 to open, it simultaneously outputs a control signal to the maintenance switch 540, thereby controlling the maintenance switch 540 to conduct, enabling the maintenance switch 540 to perform maintenance on the battery pack 01.

[0040] Optional, see below Figure 1 The extinguishing agent container and the second pipe 40 are both located outside the battery cluster, while the first pipe 20 is located inside the battery cluster. Specifically, by placing both the extinguishing agent container and the second pipe 40 outside the battery cluster without occupying space inside, installation space and costs are further saved. Furthermore, placing the first pipe 20 inside the battery cluster, corresponding to the battery pack 01, allows the first pipe 20 to be closer to the fire point, resulting in faster feedback, more precise positioning, and accurate identification of the fire point, further improving the fire extinguishing efficiency of the fire protection system.

[0041] Optional, see below Figure 1 The fire protection system also includes a main control valve (not shown in the figure). The inlet end of the second pipeline 40 is connected to the extinguishing agent container via the main control valve. Specifically, the main control valve is used to control the flow of extinguishing agent from the extinguishing agent container to the second pipeline 40. Under normal circumstances, the main control valve is in a normally closed state to ensure that there is no extinguishing agent in the second pipeline 40, facilitating transportation and on-site maintenance.

[0042] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fire suppression system for a battery cluster, the battery cluster comprising multiple battery packs, characterized in that, The fire protection system includes multiple fire handling modules, multiple first pipes, multiple sub-control valves, and a second pipe; The outlet end of the first pipe is configured to correspond one-to-one with the battery pack, the inlet end of the first pipe is connected to the outlet end of the second pipe through the sub-control valve, and the inlet end of the second pipe is connected to the fire extinguishing agent container. The fire protection module is configured in a one-to-one correspondence with the battery pack, and the signal acquisition terminal of the fire protection module is located on the battery pack. The signal control terminal of the fire protection module is electrically connected to the sub-control valve.

2. The fire protection system for battery clusters according to claim 1, characterized in that, The battery pack includes a battery body, and the fire-fighting module is disposed on the battery body.

3. The fire protection system for battery clusters according to claim 1, characterized in that, The fire protection system also includes multiple connection modules, each of which is configured to correspond one-to-one with the battery pack. The connection module includes a first communication interface; In the corresponding battery pack and the connection module, the signal control terminal is electrically connected to the first communication interface via a first connection line, and the first communication interface is electrically connected to the corresponding sub-control valve via a second connection line.

4. The fire protection system for battery clusters according to claim 3, characterized in that, The connection module also includes a second communication interface; The battery pack includes a battery management device; In the corresponding battery pack and connection module, the battery management device is electrically connected to the second communication interface via a third connection line; The second communication interface in the adjacent connection module is electrically connected via a fourth connection line.

5. The fire protection system for battery clusters according to claim 4, characterized in that, The first connecting line and the third connecting line are integrated.

6. The fire protection system for battery clusters according to claim 3, characterized in that, The connection module also includes a nozzle device, which is connected to the outlet end of the first pipe.

7. The fire protection system for battery clusters according to claim 3, characterized in that, The connection module also includes a maintenance switch, which is disposed in the circuit between the input and output terminals of the maintenance device. The signal control terminal of the fire protection module is also electrically connected to the control terminal of the maintenance switch.

8. The fire protection system for battery clusters according to claim 1, characterized in that, The signal acquisition terminal includes at least one of a temperature signal acquisition terminal and a smoke signal acquisition terminal.

9. The fire protection system for battery clusters according to claim 1, characterized in that, The extinguishing agent container and the second pipe are both located outside the battery cluster, while the first pipe is located inside the battery cluster.

10. The fire protection system for battery clusters according to claim 1, characterized in that, The fire protection system also includes a main control valve; The inlet end of the second pipeline is connected to the extinguishing agent container via the main control valve.

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