Energy storage container

Abstract

The utility model describes an energy storage container which comprises a container body and a fire fighting device, and an electrical cabin is arranged in the container body. The fire-fighting device comprises a fire-fighting main body and a triggering piece which are connected with each other, the fire-fighting main body is at least partially installed in the electrical cabin, and the triggering piece is arranged in the electrical cabin and used for sensing the thermal runaway temperature so as to trigger the fire-fighting main body to release a fire extinguishing agent. Therefore, when the trigger piece detects that the temperature of thermal runaway reaches the preset value, the fire-fighting main body can be triggered to release the fire extinguishing agent, so that the fire extinguishing agent covers the electrical cabin, fire extinguishing can be quickly realized in a self-starting mode of the fire-fighting device, and complicated response actions do not need to be executed, so that further spreading of fire behavior can be quickly restrained; the safety of the energy storage container is ensured, and the overall reliability of the energy storage container is improved.

Description

Technical Field

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

[0002] Existing energy storage containers are divided into battery compartments and electrical compartments. Within the electrical compartment, electronic components such as power distribution equipment, junction boxes, and cables pose potential fire risks, including equipment malfunctions, high temperatures, and sparks. These risks could lead to a fire in the electrical compartment. Currently, fire protection measures in the electrical compartment are inadequate. A fire in the electrical compartment could trigger a severe chain reaction, increasing the fire risk of the entire energy storage container. Utility Model Content

[0003] In view of the above-mentioned existing situation, this application provides an energy storage container that can improve fire safety performance.

[0004] This utility model provides an energy storage container, comprising: a container body with an electrical compartment inside; and a fire-fighting device, including a fire-fighting main body and a triggering element connected to each other. The fire-fighting main body is at least partially installed in the electrical compartment, and the triggering element is arranged in the electrical compartment. The triggering element is used to sense the thermal runaway temperature to trigger the fire-fighting main body to release a fire extinguishing agent.

[0005] Optionally, the energy storage container includes a plurality of electronic devices located within the electrical compartment; the trigger is at least partially located between two adjacent electronic devices.

[0006] Optionally, the trigger is a thermal wire.

[0007] Optionally, the electrical compartment contains at least three electronic devices, with the thermal wire running between two adjacent electronic devices.

[0008] Optionally, the electrical compartment contains at least three electronic devices, and the at least three electronic devices are arranged sequentially in the vertical direction; the thermal wire at least surrounds the electronic device located in the middle, and the thermal wire is at least partially located between two adjacent electronic devices.

[0009] Optionally, the electrical compartment includes three adjacent inner walls, with two of the inner walls arranged opposite each other; the thermal wire is installed on the three inner walls.

[0010] Optionally, the energy storage container further includes a plurality of spaced-apart limiting members; one end of the limiting member is connected to the inner wall of the electrical compartment, and the other end of the limiting member is connected to the thermal wire to limit the winding path of the thermal wire.

[0011] Optionally, the thermal wire is at least partially located in the middle of the electrical compartment.

[0012] Optionally, the extinguishing agent is a gaseous extinguishing agent.

[0013] Optionally, the extinguishing agent is perfluorohexanone, the net space volume in the electrical compartment is between 0.5 cubic meters and 1 cubic meter, and the amount of perfluorohexanone in the fire-fighting main body is between 2 kg and 2.8 kg.

[0014] The energy storage container of this utility model includes a container body and a fire-fighting device. The container body houses an electrical compartment, and the fire-fighting device includes a fire-fighting main body and a triggering element connected to each other. The fire-fighting main body is installed within the electrical compartment, and the triggering element is also located within the electrical compartment. Specifically, the triggering element can sense the thermal runaway temperature. Therefore, when the triggering element detects that the thermal runaway temperature reaches a preset value, it can trigger the fire-fighting main body to release extinguishing agent, thereby covering the electrical compartment. The fire-fighting device's self-activation mechanism allows for rapid fire suppression without requiring complex response actions, thus quickly containing the further spread of fire, ensuring the safety of the energy storage container, and improving the overall reliability of the energy storage container. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0017] Figure 1 This is a schematic diagram showing the overall structure of the energy storage container involved in this application.

[0018] Figure 2 This is a structural schematic diagram showing the fire-fighting device installed in the electrical compartment of the energy storage container involved in this application.

[0019] Figure 3 This is another structural schematic diagram showing the installation of fire-fighting devices in the electrical compartment of the energy storage container involved in this application.

[0020] Figure 4 This illustrates the scope of this application. Figure 3 A magnified view of a portion of point A in the middle.

[0021] Figure 5This is a schematic diagram showing the internal structure of the electrical compartment in the energy storage container involved in this application.

[0022] Reference numerals: 1. Enclosure; 11. Electrical compartment; 111. Inner wall; 12. Battery compartment; 2. Fire-fighting device; 21. Fire-fighting main body; 22. Trigger; 221. Thermal wire; 3. Electronic components; 31. Power distribution equipment; 32. Disconnecting switch; 33. Busbar; 34. Cable; 4. Limiting component. Detailed Implementation

[0023] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same components, and repeated descriptions are omitted. Furthermore, the drawings are merely schematic diagrams, and the proportions of the components or their shapes may differ from actual dimensions. It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0025] Reference Figure 1 and Figure 2 This application provides an energy storage container, which includes a container body 1 and a fire-fighting device 2. The container body 1 has an electrical compartment 11 inside; the fire-fighting device 2 includes a fire-fighting main body 21 and a trigger 22 connected to each other. The fire-fighting main body 21 is at least partially installed in the electrical compartment 11, and the trigger 22 is arranged in the electrical compartment 11. The trigger 22 is used to sense the thermal runaway temperature to trigger the fire-fighting main body 21 to release a fire extinguishing agent.

[0026] According to the above structure, when the trigger 22 detects that the temperature of thermal runaway reaches a preset value, it can trigger the fire-fighting main body 21 to release the extinguishing agent, so that the extinguishing agent covers the electrical compartment 11. The fire-fighting device 2 automatically activates, enabling rapid fire suppression without complex response actions, thus quickly containing the further spread of the fire, ensuring the safety of the energy storage container, and improving the overall reliability of the energy storage container. Specifically, once the trigger 22 senses a rapid rise in temperature inside the electrical compartment 11, reaching the preset thermal runaway temperature value, it will immediately activate the fire-fighting main body 21. This rapid response ensures that the extinguishing agent can spread quickly and evenly, forming a protective barrier, effectively isolating the fire source, and containing the further spread of the fire. This automated fire suppression process not only greatly shortens the fire response time and reduces the losses caused by the fire, but also maximizes the protection of critical equipment inside the electrical compartment 11, reducing the risk of equipment damage due to fire.

[0027] In some embodiments, the energy storage container includes a plurality of electronic devices 3 located within the electrical compartment 11; a trigger 22 is at least partially located between two adjacent electronic devices 3. This arrangement of the trigger 22 also improves its utilization rate, enabling both sides of the trigger 22 to sense temperature changes in the two adjacent electronic devices 3. Once the trigger 22 detects that the temperature exceeds a safety threshold, it can immediately trigger the fire-fighting main body 21 to release extinguishing agent, thereby reducing the impact of a fire and better protecting the energy storage container.

[0028] Specifically, refer to Figure 1 and Figure 2 Energy storage containers typically include a battery compartment 12 and an electrical compartment 11. The battery compartment 12 is the area in the energy storage container used to store battery packs, while the electrical compartment 11 is the area used to install and arrange electronic devices 3 related to the energy storage system. (Refer to...) Figure 5 The electronic device 3 may include power distribution equipment 31, disconnecting switch 32, busbar equipment 33, cable 34, etc. These electronic devices 3 generate heat during operation, and when the heat is high, there may even be a potential fire risk. Therefore, the trigger 22 is located at least partially between two adjacent electronic devices 3, so it can sensitively sense the temperature change of the electronic device 3 with high heat.

[0029] Reference Figure 2 In some examples, the trigger 22 may be located partly between two adjacent electronic devices 3 and partly between the electronic device 3 and the inner wall 111 of the electrical compartment 11, so that the trigger 22 forms a structure that surrounds the electronic device 3 in all directions, so as to better sense the temperature changes of the electronic device 3.

[0030] In some embodiments, the trigger 22 is a thermal wire 221. Specifically, the thermal wire 221, also known as a temperature sensor wire, is made of a material that is extremely sensitive to temperature changes. When the ambient temperature rises, the resistance value of the thermal wire 221 changes until it reaches a preset value, triggering the fire extinguishing agent to be released by the fire-fighting unit. Therefore, the linear thermal wire 221 saves more space and can be flexibly arranged within the electrical compartment 11. Compared to traditional large temperature sensors or complex detection systems, the thermal wire 221 occupies less space within the electrical compartment 11. This is particularly important for limited spaces like the electrical compartment 11, as it not only optimizes space utilization but also reduces congestion of equipment within the electrical compartment 11, contributing to the maintenance of the normal operation of the electrical system. Furthermore, the linear trigger wire's flexibility allows it to adapt to the complex layout of electronic devices 3 within the electrical compartment 11. These trigger wires can be easily arranged in various corners and critical locations within the electrical compartment 11, including between adjacent electronic devices 3, near electrical wiring, and in potentially high-risk fire areas. This flexible arrangement allows thermal line 221 to more comprehensively cover electrical compartment 11, ensuring that every potential risk area can be monitored in a timely manner.

[0031] In some embodiments, the electrical compartment 11 is equipped with at least three electronic devices 3, and thermal wires 221 run between two adjacent electronic devices 3. This arrangement of thermal wires 221 also improves their utilization rate, allowing both sides of the thermal wires 221 to sense temperature changes in the two adjacent electronic devices 3. Once the trigger 22 detects that the temperature exceeds a safety threshold, it can immediately trigger the fire-fighting main body 21 to release extinguishing agents, thereby reducing the impact of a fire and better protecting the energy storage container.

[0032] Reference Figure 2 The electrical compartment 11 contains at least three electronic devices 3, which are arranged sequentially in a vertical direction. A thermal wire 221 at least surrounds the central electronic device 3, and the thermal wire 221 is at least partially located between two adjacent electronic devices 3. Specifically, as shown... Figure 2 The distribution of the thermal line 221 can be that a single thermal line 221 is interlaced and shuttles between electronic devices 3, so that the thermal line 221 can fully sense the temperature of electronic devices 3, but the wiring is neat and orderly.

[0033] In some embodiments, the electrical compartment 11 includes three sequentially adjacent inner walls 111, with two of the inner walls 111 arranged opposite each other; a thermal wire 221 is installed on the three inner walls 111. Thus, it can be understood that the three sequentially adjacent inner walls 111 can form a receiving space for the electronic device 3, which is located within this space. The thermal wire 221, installed on the three inner walls 111, can form a three-dimensional, all-around structure for sensing the electronic device within the electrical compartment 11, thereby allowing for more comprehensive perception of temperature changes in various areas within the electrical compartment 11.

[0034] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, the energy storage container also includes multiple spaced-apart limiting members 4; one end of the limiting member 4 is connected to the inner wall 111 of the electrical compartment 11, and the other end of the limiting member 4 is connected to the thermal wire 221 to limit the routing path of the thermal wire 221. Thus, the limiting member 4 can plan the routing of the thermal wire 221, allowing it to be more rationally distributed within the electrical compartment 11 and extended orderly along a predetermined path, thereby preventing the thermal wire 221 from becoming too messy. Furthermore, the presence of the limiting member 4 effectively fixes the position of the thermal wire 221, preventing displacement during temperature changes or equipment movement, thereby reducing the risk of the thermal wire 221 becoming entangled or interfering with the electronic components 3.

[0035] In some examples, the limiting member 4 can be a snap fastener, with one end connected to the inner wall 111 of the electrical compartment 11 and the other end snapped into the thermal wire 221. In other embodiments, the limiting member 4 can also be a double-sided adhesive, with one side of the double-sided adhesive attached to the inner wall 111 of the electrical compartment 11 and the other side bonded to the thermal wire 221.

[0036] In some embodiments, the thermal wire 221 is at least partially located in the center of the electrical compartment 11. Thus, the thermal wire 221 located in the center can simultaneously contact heat changes from different directions, including heat flows from above, below, front, and sides. This multi-angle heat contact ensures that the thermal wire 221 can capture comprehensive information about the temperature distribution inside the electrical compartment 11.

[0037] In some embodiments, the extinguishing agent is a gaseous extinguishing agent. Therefore, the space within the electrical compartment 11 is relatively small and enclosed, allowing the gaseous extinguishing agent to quickly and evenly fill the entire space, ensuring that the fire can be rapidly controlled, effectively suppressing the flames and reducing the temperature, thereby extinguishing the fire in a short time. Furthermore, unlike powder or foam extinguishing agents, gaseous extinguishing agents leave no residue after extinguishing the fire, meaning they will not corrode or damage the electronic components 3 within the electrical compartment 11, making them more suitable for environments where electronic components 3 are densely packed.

[0038] In some embodiments, the extinguishing agent is perfluorohexanone (PFH), the net space volume within the electrical compartment 11 is between 0.5 cubic meters and 1 cubic meter, and the amount of PPH in the fire-fighting main body 21 is between 2 kg and 2.8 kg. Therefore, the fire-fighting device 2 is a PPH extinguishing device. PPH is a highly efficient extinguishing agent with excellent extinguishing effects on various types of fires, especially electrical fires. It can rapidly reduce the temperature of the fire source and isolate oxygen, thereby effectively extinguishing the fire. PPH has excellent electrical insulation properties and will not damage electrical equipment. Furthermore, PPH leaves no residue after extinguishing the fire, preventing secondary pollution of the equipment inside the energy storage container and ensuring that the equipment can be immediately restored to use after the fire is extinguished. Normally, the electrical compartment 11 can operate normally between -30℃ and +70℃. When a fire hazard occurs in the electrical compartment 11, the temperature inside the electrical compartment 11 rises rapidly. When the temperature rises to 170℃ to 200℃ or an open flame appears, the heat-sensitive wire 221 activates and triggers the fire extinguishing device 2 to release the extinguishing agent. The amount of perfluorohexanone (PFH) in the fire extinguishing body 21 can be calculated according to the extinguishing agent dosage specified in T / CECS10171-2022 "Prefabricated Perfluorohexanone Fire Extinguishing Device". In this embodiment, the net space volume inside the electrical compartment 11 is between 0.5 cubic meters and 1 cubic meter, and the amount of PPH in the fire extinguishing body 21 is between 2 kg and 2.8 kg. Therefore, the extinguishing concentration in the electrical compartment 11 can be between 8.01% and 26.44%, which is greater than the 5.9% specified in T / CECS10171-2022 "Prefabricated Perfluorohexanone Fire Extinguishing Device", thus achieving effective fire extinguishing.

[0039] Specifically, the technical formula for the extinguishing agent dosage in T / CECS10171-2022 "Prefabricated Perfluorohexanone Fire Extinguishing Device" is: m=c·V / [S·(100-c)]. Where m is the extinguishing agent dosage in kilograms; c is the extinguishing concentration; V is the net volume of the protected area in cubic meters; and S is the specific volume of the superheated vapor of the extinguishing agent at 101 kPa atmospheric pressure and the lowest ambient temperature of the protected area, in cubic meters per kilogram. The specific volume of the superheated vapor of the extinguishing agent at 101 kPa atmospheric pressure and the lowest ambient temperature of the protected area is calculated using the formula: S=0.0664+0.000274·T. When the ambient temperature T=20℃, S=0.07188.

[0040] In some embodiments, the total volume of the electrical compartment 11 is 1.64 cubic meters, and the total volume of all electronic devices 3 in the electrical compartment 11 is 0.99 cubic meters. Therefore, the net volume V is: 1.64 cubic meters - 0.99 cubic meters = 0.65 cubic meters. In this embodiment, the perfluorohexanone fire extinguishing device in the fire-fighting main body 21 is filled with 2.6 kg. Based on the technical formula for extinguishing agent dosage: m = c·V / [S·(100-c)], the extinguishing concentration in the protected area can be calculated as: c = 22.33%. This extinguishing concentration is greater than the 5.9% specified in T / CECS10171-2022 "Prefabricated Perfluorohexanone Fire Extinguishing Device", thus achieving effective fire extinguishing.

[0041] In some examples, the dimensions of the fire-fighting device 2 can be: a length of 535mm ± 5mm, a width of 121mm ± 0.5mm, and a height of 121mm ± 0.5mm. Furthermore, the amount of extinguishing agent can be 2600g, and the overall weight of the fire-fighting device 2 containing the extinguishing agent can be 6400g ± 150g.

[0042] In some embodiments, the fire-fighting device 2 is detachably connected to the inner wall 111 of the electrical compartment 11. This detachable connection facilitates the installation and removal of the fire-fighting device 2. Specifically, to ensure the fire-fighting device 2 always possesses reliable fire-fighting performance, it requires a strict periodic replacement procedure, and it also needs to be replaced after releasing extinguishing agents. Therefore, the detachable connection greatly facilitates the replacement of the fire-fighting device 2, enabling maintenance personnel to quickly replace the fire-fighting device 2 and ensuring that the fire-fighting system of the electrical compartment 11 is always in optimal condition.

[0043] In some examples, the fire-fighting unit is bolted to the inner wall 111 of the electrical compartment 11. This bolted connection provides a secure link, effectively preventing loosening of the fire-fighting unit during vibration or temperature changes, ensuring the fire-fighting equipment can function quickly and reliably in emergencies. Furthermore, the bolted installation facilitates rapid installation and removal of the fire-fighting unit, allowing maintenance personnel to quickly replace it and improving work efficiency. Moreover, the bolted installation structure is simple, low-cost, and easy to operate, providing convenience for the maintenance and daily inspection of the electrical compartment 11, reducing maintenance costs and complexity.

[0044] In other examples, the fire-fighting main body 21 can also be snapped onto the inner wall 111 of the electrical compartment 11. This snap-fit ​​installation method is simple to operate, allowing for quick installation and disassembly of the fire-fighting device 2, greatly improving installation efficiency and convenience.

[0045] In summary, the trigger 22 of the fire-fighting device 2 in the energy storage container can sense the thermal runaway temperature. Therefore, when the trigger 22 detects that the thermal runaway temperature reaches a preset value, it can trigger the fire-fighting main body 21 to release the extinguishing agent so that the extinguishing agent covers the electrical compartment 11. Moreover, the fire-fighting device 2 can quickly extinguish the fire by automatically starting, without having to perform complex response actions. This can quickly contain the further spread of the fire, ensure the safety of the energy storage container, and improve the overall reliability of the energy storage container.

[0046] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0048] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0049] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

[0050] Although the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the essential spirit and scope of the present invention, and all such modifications and variations fall within the scope of the present invention.

Claims

1. An energy storage container, characterized in that, include: The enclosure contains an electrical compartment. The fire-fighting device includes an interconnected fire-fighting body and a triggering element. The fire-fighting body is at least partially installed in the electrical compartment, and the triggering element is arranged in the electrical compartment. The triggering element is used to sense the thermal runaway temperature to trigger the fire-fighting body to release a fire extinguishing agent.

2. The energy storage container according to claim 1, characterized in that, The energy storage container includes multiple electronic devices located within the electrical compartment; The trigger is located at least partially between two adjacent electronic devices.

3. The energy storage container according to claim 1 or 2, characterized in that, The trigger is a thermal wire.

4. The energy storage container according to claim 3, characterized in that, The electrical compartment contains at least three electronic devices, and the thermal wire runs between two adjacent electronic devices.

5. The energy storage container according to claim 3, characterized in that, The electrical compartment is equipped with at least three electronic devices, and the at least three electronic devices are arranged sequentially in the vertical direction; The thermal line at least surrounds the electronic device located in the middle, and the thermal line is at least partially located between two adjacent electronic devices.

6. The energy storage container according to claim 3, characterized in that, The electrical compartment includes three adjacent inner walls, with two of the inner walls arranged opposite each other. The thermal wires are installed on the three inner walls.

7. The energy storage container according to claim 3, characterized in that, The energy storage container also includes multiple spaced-apart limiting components; One end of the limiting member is connected to the inner wall of the electrical compartment, and the other end of the limiting member is connected to the thermal wire to limit the winding path of the thermal wire.

8. The energy storage container according to claim 3, characterized in that, The thermal wire is located at least partially in the middle of the electrical compartment.

9. The energy storage container according to claim 1 or 2, characterized in that, The extinguishing agent is a gaseous extinguishing agent.

10. The energy storage container according to claim 1 or 2, characterized in that, The extinguishing agent is perfluorohexanone, the net space volume in the electrical compartment is between 0.5 cubic meters and 1 cubic meter, and the amount of perfluorohexanone in the main fire-fighting unit is between 2 kg and 2.8 kg.

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