Energy storage fire-fighting device, energy storage system and electric equipment

Abstract

The utility model relates to the technical field of energy storage, in particular to an energy storage fire fighting device, an energy storage system and electric equipment, and the energy storage fire fighting device comprises an energy storage box body and a plurality of fire extinguishing modules; a plurality of mounting positions for mounting the single batteries are arranged in the energy storage box body; the fire extinguishing module is arranged in the energy storage box body and is used for accommodating a fire extinguishing agent; wherein each mounting position is provided with a fire extinguishing module; a hot melting part is arranged on one side, close to the mounting position, of the fire extinguishing module, and is used for melting when the battery monomers at the mounting position release pressure, so that the fire extinguishing module releases a fire extinguishing agent. The battery can be extinguished and cooled in time when the battery is in thermal runaway.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage fire-fighting device, an energy storage system, and electrical equipment. Background Art

[0002] At present, by laying spray pipes and distributing nozzles corresponding to the position of each battery cell on the spray pipes, fire extinguishing agent is opened from the corresponding nozzles to extinguish the fire and cool down the battery cell when the battery cell thermally runs away. However, when the battery cell thermally runs away, the fire extinguishing agent needs to be transported from the liquid storage tank to the target nozzle through the spray pipe, resulting in a long transportation path for the fire extinguishing agent, and it is impossible to extinguish the fire and cool down the battery cell in thermal runaway in time, which poses a safety hazard. Utility Model Content

[0003] Based on this, the embodiments of the present application provide an energy storage fire-fighting device, an energy storage system, and electrical equipment, which can promptly extinguish fires and reduce the temperature of battery cells when they experience thermal runaway.

[0004] In order to solve the above technical problems, the present application provides an energy storage fire fighting device, which adopts the following technical solutions:

[0005] An energy storage fire-fighting device, comprising:

[0006] The energy storage box is provided with a plurality of mounting positions for installing battery cells;

[0007] A plurality of fire extinguishing modules are provided in the energy storage box and are used to accommodate fire extinguishing agents;

[0008] Wherein, each installation position is provided with the fire extinguishing module; the fire extinguishing module has a hot melt portion on a side close to the installation position, and the hot melt portion is used to melt when the battery cell at the installation position is depressurized, so that the fire extinguishing module releases the fire extinguishing agent.

[0009] Furthermore, the fire extinguishing module can be detachably installed in the energy storage box; and / or,

[0010] The fire extinguishing module includes a fire extinguishing container; the fire extinguishing container has a first accommodating chamber for accommodating the fire extinguishing agent, and the fire extinguishing container is provided with a spray port connected to the first accommodating chamber, and the spray port is used to spray the fire extinguishing agent toward the battery cell at the installation position; the hot melt portion is sealed and connected to the spray port.

[0011] Furthermore, the fire extinguishing container is also provided with a guide channel;

[0012] Both ends of the guide channel are communicated with the first accommodating cavity and the injection port respectively.

[0013] Furthermore, the diameter of the guide channel decreases gradually along the direction of the first accommodating chamber approaching the injection port.

[0014] Furthermore, the guide channel includes a first guide section, a straight section, and a second guide section that are connected in sequence; the first guide section is arranged close to the first accommodating cavity, and the second guide section is arranged close to the injection port;

[0015] In a direction where the first accommodating chamber approaches the injection port, the calibers of the first guide section and the second guide section decrease gradually.

[0016] Furthermore, the diameter of the first guide section near one end of the straight section is smaller than or equal to the diameter of the straight section.

[0017] Furthermore, the diameter of the second guide section at one end away from the straight section is smaller than or equal to the diameter of the straight section.

[0018] Furthermore, the energy storage box includes an upper shell and a lower shell that are arranged in opposition; the lower shell is provided with a second accommodating cavity; the mounting position is arranged in the second accommodating cavity; the fire extinguishing module is arranged on a side of the upper shell close to the accommodating cavity.

[0019] Furthermore, a plurality of spaced-apart protrusions are formed in the energy storage box, and each of the protrusions is provided with the fire extinguishing module.

[0020] Furthermore, the melting point of the heat-melting portion is 100°C to 150°C.

[0021] In order to solve the above technical problems, the embodiment of the present application further provides an energy storage system, which adopts the following technical solutions:

[0022] An energy storage system, comprising:

[0023] The energy storage fire fighting device as described above;

[0024] A plurality of battery cells are provided, and each of the installation positions is provided with the battery cells.

[0025] Furthermore, the energy storage system further includes a wiring harness isolation plate;

[0026] The wiring harness isolation plate covers each of the battery cells, and the wiring harness isolation plate is provided with a plurality of one-way explosion-proof valves, and the one-way explosion-proof valves correspond to the battery cells one by one;

[0027] The hot melt portion is arranged toward the one-way explosion-proof valve.

[0028] In order to solve the above technical problems, the embodiment of the present application further provides an electrical device, which adopts the following technical solution:

[0029] An electrical device includes the energy storage system described above.

[0030] Compared with the prior art, the embodiments of the present application have the following main beneficial effects: the present application can timely extinguish the fire and cool down the battery cell when it is in thermal runaway. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the solution of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the energy storage fire-fighting device of the present application;

[0033] Figure 2 This is a schematic diagram of the structure of the upper shell of the energy storage fire-fighting device of the present application from a bottom view;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower shell of the energy storage fire-fighting device of the present application;

[0035] Figure 4 This is a schematic diagram of the longitudinal cross-section structure of an embodiment of a fire extinguishing module in the energy storage fire fighting device of the present application;

[0036] Figure 5 This is a schematic diagram of the longitudinal cross-section structure of another embodiment of the fire extinguishing module in the energy storage fire fighting device of the present application;

[0037] Figure 6 It is a schematic diagram of the three-dimensional structure of the energy storage system of this application;

[0038] Figure 7 This is a schematic diagram of the three-dimensional structure of the energy storage system of this application after the upper shell is hidden.

[0039] Reference numerals:

[0040] 10. Energy storage system; 100. Energy storage box; 110. Mounting position; 120. Upper shell; 130. Lower shell; 140. Second accommodating chamber; 150. Protrusion; 151. Third accommodating chamber; 200. Fire extinguishing module; 210. Hot melt portion; 220. Fire extinguishing container; 221. First accommodating chamber; 222. Injection port; 223. Guide channel; 2231. First guide section; 2232. Straight section; 2233. Second guide section; 300. Wire harness isolation plate; 310. One-way explosion-proof valve. DETAILED DESCRIPTION

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0042] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0044] See Figures 1 to 3 An embodiment of the present application provides an energy storage fire-fighting device, comprising an energy storage box 100 and a plurality of fire-extinguishing modules 200; the energy storage box 100 is provided with a plurality of mounting positions 110 for mounting battery cells; the fire-extinguishing modules 200 are arranged in the energy storage box 100 and are used to accommodate fire-extinguishing agent; wherein each of the mounting positions 110 is provided with the fire-extinguishing module 200; the fire-extinguishing module 200 has a hot-melt portion 210 on a side close to the mounting position 110, and the hot-melt portion 210 is used to melt when the battery cells in the mounting position 110 are depressurized, so that the fire-extinguishing module 200 releases the fire-extinguishing agent.

[0045] It is understandable that when the battery cell at the installation position 110 thermally runs away, the explosion-proof valve in the battery cell will eject a heat flow, causing the hot melt portion 210 of the fire extinguishing module 200 corresponding to the installation position 110 to melt, thereby allowing the fire extinguishing module 200 to release fire extinguishing agent to the battery cell to extinguish the fire.

[0046] In this way, the arrangement of having a fire extinguishing module 200 corresponding to each mounting position 110 makes each fire extinguishing module 200 independent of each other. Even if the hot melt portion 210 on one of the fire extinguishing modules 200 melts, it will not affect the use of other fire extinguishing modules 200, and the fire is mainly extinguished on the battery cells at the corresponding mounting position 110, reducing the impact of the fire extinguishing agent released by the fire extinguishing module 200 on the battery cells at other mounting positions 110; and it can also ensure the timeliness of the release of the fire extinguishing agent by the fire extinguishing module 200, avoiding the battery cells that have thermal runaway affecting other battery cells that have not thermally runaway, and the situation where the existing pipeline-type transmission of fire extinguishing agent makes it impossible to extinguish the battery cells in time.

[0047] In some embodiments, the fire extinguishing agent may be a gaseous fire extinguishing agent, which has the characteristics of rapid diffusion, leaving no trace, and being non-conductive, which is beneficial to improving the fire extinguishing efficiency of battery cells in thermal runaway and avoiding affecting other battery cells that are not out of control.

[0048] Preferably, the above-mentioned gaseous fire extinguishing agent includes but is not limited to carbon dioxide, nitrogen, etc.

[0049] In other embodiments, the fire extinguishing agent may be a liquid fire extinguishing agent. After being released into the battery cell in thermal runaway, the liquid fire extinguishing agent can quickly reduce the surface temperature of the battery cell in thermal runaway by cooling, thereby preventing the thermal runaway of the battery cell from continuing to develop.

[0050] Preferably, the liquid fire extinguishing agent includes but is not limited to foam fire extinguishing agent, dry powder fire extinguishing agent, perfluorohexanone, etc.

[0051] The structure of the energy storage box 100 mentioned in the embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.

[0052] In some embodiments, see Figures 1 to 3 The energy storage box 100 includes an upper shell 120 and a lower shell 130 that are arranged in opposition; the lower shell 130 is provided with a second accommodating chamber 140; the mounting position 110 is arranged in the second accommodating chamber 140; the fire extinguishing module 200 is arranged on a side of the upper shell 120 close to the accommodating chamber.

[0053] It can be understood that when the fire extinguishing module 200 needs to be replaced, the upper shell 120 and the lower shell 130 are first separated, and then the fire extinguishing module 200 to be replaced on the upper shell 120 is removed, and the new fire extinguishing module 200 is installed. Finally, the upper shell 120 and the lower shell 130 are re-aligned and connected, and the second accommodating cavity 140 on the lower shell 130 is re-sealed, thereby completing the replacement of the fire extinguishing module 200. The operation is simple and reliable.

[0054] In some embodiments, see Figures 1 to 3A plurality of spaced protrusions 150 are formed in the energy storage box 100 , and each of the protrusions 150 is provided with the fire extinguishing module 200 .

[0055] Understandably, the protrusions 150 are used to introduce an additional heat-conducting surface into the energy storage box 100 , thereby increasing the heat-conducting surface area within the energy storage box 100 and effectively improving the heat dissipation efficiency within the energy storage box 100 .

[0056] Secondly, the protrusions 150 are spaced apart from each other so that a deformation space is formed between two adjacent protrusions 150 to support the deformation of the side of the energy storage box 100 having the protrusions 150. This is used to absorb external forces acting on the energy storage box 100, thereby protecting the battery cells at the installation position 110 in the energy storage box 100 during use. On the other hand, it is also used to absorb the thermal pressure generated when the battery cells in the energy storage box 100 are depressurized, thereby increasing the bursting threshold of the energy storage box 100, so that the fire extinguishing module 200 can be used to solve the problem of thermal runaway of the battery cells before the energy storage box 100 bursts, thereby protecting the battery cells at the installation position 110 in the energy storage box 100 and other electronic components, thereby improving safety.

[0057] In some embodiments, see Figures 1 to 3 When the lower shell 130 is provided with the second accommodating cavity 140, the protrusion 150 is formed on the side of the upper shell 120 close to the lower shell 130. In this way, when the battery cells stored in the energy storage box 100 release pressure, the hot air flow will move toward the direction close to the upper shell 120. At this time, by arranging the protrusion 150 on the side of the upper shell 120 close to the lower shell 130, the thermal pressure generated when the battery cells in the energy storage box 100 release pressure can be effectively absorbed, thereby improving the overall safety of the energy storage box 100.

[0058] In some embodiments, see Figures 1 to 3 The protrusion 150 is provided with a third accommodating cavity 151, and the fire extinguishing module 200 is arranged in the third accommodating cavity 151, so as to improve the compactness of the structure after the protrusion 150 and the fire extinguishing module 200 are connected, reduce the space occupied by the two in the energy storage box 100, and thus improve the utilization rate of the internal space of the energy storage box 100.

[0059] The structure of the fire extinguishing module 200 mentioned in the embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.

[0060] In some embodiments, see Figures 1 to 5 The fire extinguishing module 200 can be detachably installed in the energy storage box 100. In this way, the fire extinguishing module 200 can be removed and replaced after use, so that the fire extinguishing module 200 at the corresponding installation position 110 can continue to provide fire protection for the battery cell, thereby improving the safety of the battery cell.

[0061] Furthermore, the fire extinguishing module 200 can be detachably installed in the energy storage box 100, and the detachable connection methods include but are not limited to adhesive connection, snap connection, screw connection, mortise and tenon connection, plug connection, etc.

[0062] In some embodiments, see Figures 1 to 5 The fire extinguishing module 200 includes a fire extinguishing container 220; the fire extinguishing container 220 has a first accommodating chamber 221 for accommodating the fire extinguishing agent, and the fire extinguishing container 220 is provided with a spray port 222 connected to the first accommodating chamber 221, and the spray port 222 is used to spray the fire extinguishing agent toward the battery cell of the installation position 110; the hot melt portion 210 is sealed and connected to the spray port 222.

[0063] It can be understood that, initially, the hot melt portion 210 is sealed and connected to the injection port 222 to seal the first accommodating chamber 221, that is, at this time the hot melt portion 210 is used to block the injection port 222 to prevent the fire extinguishing agent in the first accommodating chamber 221 from leaking out; after the hot melt portion 210 melts, the hot melt portion 210 no longer blocks the injection port 222, so that the injection port 222 is opened, and the fire extinguishing agent in the first accommodating chamber 221 flows out through the injection port 222, thereby realizing that the fire extinguishing module 200 releases the fire extinguishing agent, cools down the battery cell with thermal runaway, and improves the safety of the battery cell.

[0064] In some embodiments, the hot melt portion 210 is wax, which has a good sealing effect and can meet the need of storing the fire extinguishing agent in the first accommodating cavity 221.

[0065] In some embodiments, the melting point of the hot melt portion 210 is 100° C. to 150° C. Within this range, the melting point of the hot melt portion 210 is greater than the temperature of the battery cell in normal working conditions and less than the temperature of the battery cell in thermal runaway conditions. This prevents the hot melt portion 210 from melting when the battery cell is in normal working conditions, and allows the hot melt portion 210 to melt in the early stages of thermal runaway conditions. This helps to extinguish fires and reduce the temperature of the battery cell through the fire extinguishing agent released by the fire extinguishing module 200 before the thermal runaway condition of the battery cell fully develops, thereby reducing potential safety risks and damage to battery cells that are not in thermal runaway conditions at other installation locations 110.

[0066] It is understandable that the lower the melting point of the hot melt portion 210 , the earlier the hot melt portion 210 melts in the thermal runaway state of the battery cell, which more effectively reduces potential safety risks and damage to battery cells at other installation locations 110 that are not out of control.

[0067] Optionally, the melting point of the hot melt portion 210 is selected from a range formed by any one or two of 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 130°C, 135°C, 140°C, 145°C, and 150°C.

[0068] In some embodiments, see Figures 1 to 5 The fire extinguishing container 220 is further provided with a guide channel 223 ; both ends of the guide channel 223 are respectively communicated with the first accommodating cavity 221 and the injection port 222 .

[0069] Understandably, the guide channel 223 serves to guide the fire extinguishing agent in the first accommodating chamber 221 into the injection port 222 to improve the release efficiency of the fire extinguishing agent in the fire extinguishing module 200, thereby enabling the battery cell with thermal runaway on the installation position 110 to be extinguished in time.

[0070] In some embodiments, see Figures 1 to 4 The diameter of the guide channel 223 decreases gradually along the direction from the first accommodating cavity 221 to the injection port 222 .

[0071] In this way, on the one hand, the flow cross-sectional area of ​​the fire extinguishing agent in the guide channel 223 decreases along the direction of the first accommodating chamber 221 approaching the injection port 222. According to the continuity principle of the fluid, the flow velocity of the fire extinguishing agent through the guide channel 223 increases, thereby improving the efficiency of the fire extinguishing module 200 in releasing the fire extinguishing agent and improving the continuity of the fire extinguishing agent injection; on the other hand, the fire extinguishing agent is concentratedly ejected from the injection port 222 through the guide channel 223 and acts concentratedly on the thermally runaway battery cell at the installation position 110, thereby preventing the fire extinguishing agent from affecting the battery cells that are not out of control at other installation positions 110.

[0072] In other embodiments, see Figures 1 to 3 ,and Figure 5 The guide channel 223 includes a first guide section 2231, a straight section 2232 and a second guide section 2233 that are connected in sequence; the first guide section 2231 is arranged close to the first accommodating chamber 221, and the second guide section 2233 is arranged close to the injection port 222; in the direction where the first accommodating chamber 221 is close to the injection port 222, the calibers of the first guide section 2231 and the second guide section 2233 decrease gradually.

[0073] It can be understood that when the fire extinguishing agent enters the guide channel 223 from the first accommodating chamber 221, the fire extinguishing agent will pass through the diversion of the first guide section 2231, the flow velocity buffer of the straight section 2232, and the diversion of the second guide section 2233 in sequence, and then be ejected from the injection port 222; in this way, on the one hand, the straight section 2232 serves as a transition section between the first guide section 2231 and the second guide section 2233, providing a relatively stable flow area for the fire extinguishing agent when flowing in the guide channel 223, so that after the fire extinguishing agent is accelerated by the first guide section 2231, it can maintain a relatively stable flow velocity in the straight section 2232 before entering the second guide section 2233, thereby allowing the fire extinguishing agent to be ejected from the injection port 222. After being emitted, it can act stably and concentratedly on the thermal runaway battery cell at the installation position 110, so as to avoid the emitted fire extinguishing agent from splashing when acting on the thermal runaway battery cell at the installation position 110 due to excessive flow rate, affecting the non-runaway battery cells at other installation positions 110; on the other hand, through the diversion effect of the first diversion section 2231, the fire extinguishing agent in the first accommodating cavity 221 is accelerated to enter the first diversion section 2231, and through the diversion effect of the second diversion section 2233, the fire extinguishing agent in the straight section 2232 is accelerated to enter the second diversion section 2233, thereby forming a two-stage diversion structure, which effectively improves the flow rate of the fire extinguishing agent, thereby improving the efficiency of the fire extinguishing module 200 in releasing the fire extinguishing agent.

[0074] Further, in some embodiments, see Figures 1 to 3 ,and Figure 5 The diameter of the first guide section 2231 at one end close to the straight section 2232 is equal to the diameter of the straight section 2232, that is, the minimum diameter of the first guide section 2231 is equal to the diameter of the straight section 2232. Therefore, when the fire extinguishing agent transitions between the first guide section 2231 and the straight section 2232, the flow rate of the fire extinguishing agent does not change due to the difference in diameter between the straight section 2232 and the second guide section 2233. This further improves the continuity of the flow of the fire extinguishing agent and further improves the efficiency of the fire extinguishing agent emitted from the injection port 222.

[0075] In other embodiments, the diameter of the first guide section 2231 near one end of the straight section 2232 is smaller than the diameter of the straight section 2232, that is, the minimum diameter of the first guide section 2231 is smaller than the diameter of the straight section 2232, so that when the fire extinguishing agent enters the straight section 2232 from the first guide section 2231, the flow rate of the fire extinguishing agent will decrease due to the increase in the diameter, so that the fire extinguishing agent can enter the straight section 2232 more smoothly from the first guide section 2231. Such a smooth transition helps to further improve the stability of the flow of the fire extinguishing agent, and further improve the stability of the fire extinguishing agent after it is ejected from the injection port 222.

[0076] Furthermore, in some embodiments, the diameter of the second guide section 2233 away from the end of the straight section 2232 is smaller than the diameter of the straight section 2232, that is, the maximum diameter of the second guide section 2233 is smaller than the diameter of the straight section 2232. In this way, since the fire extinguishing agent is already in a relatively stable flow rate state in the straight section 2232, when the fire extinguishing agent enters the second guide section 2233 from the straight section 2232, it will not cause a significant decrease in the flow rate of the fire extinguishing agent. This is conducive to ensuring the stability of the flow rate of the fire extinguishing agent when it transitions between the straight section 2232 and the second guide section 2233, and further helps to further improve the stability of the fire extinguishing agent after it is ejected from the injection port 222.

[0077] In other embodiments, see Figures 1 to 3 ,and Figure 5 The diameter of the second guide section 2233 at one end away from the straight section 2232 is equal to the diameter of the straight section 2232, that is, the maximum diameter of the second guide section 2233 is equal to the diameter of the straight section 2232. In this way, when the fire extinguishing agent transitions between the straight section 2232 and the second guide section 2233, the flow rate of the fire extinguishing agent will not change due to the difference in diameter between the straight section 2232 and the second guide section 2233. This helps to further improve the stability and continuity of the flow of the fire extinguishing agent, and further improve the stability and continuity of the fire extinguishing agent after it is ejected from the injection port 222.

[0078] See Figures 1 to 6 The embodiment of the present application further provides an energy storage system, comprising the energy storage fire-fighting device as described above, and a plurality of battery cells, wherein each of the installation positions 110 is equipped with the battery cells.

[0079] It is understandable that the energy storage system 10 having the energy storage fire fighting device described above can bring the same or similar beneficial effects as the energy storage fire fighting device. For details, please refer to the description of the embodiment of the energy storage fire fighting device, which will not be further elaborated here.

[0080] In some embodiments, see Figures 1 to 7 The energy storage system 10 further includes a wiring harness isolation plate 300; the wiring harness isolation plate 300 covers each of the battery cells, and the wiring harness isolation plate 300 is provided with a plurality of one-way explosion-proof valves 310, and the one-way explosion-proof valves 310 correspond one-to-one to the battery cells; the hot melt portion 210 is arranged toward the one-way explosion-proof valve 310.

[0081] It can be understood that when a battery cell at a certain installation position 110 is in a thermal runaway state and needs to be depressurized, the heat flow in the battery cell opens the one-way explosion-proof valve 310 and flows out of the battery cell. At this time, the hot melt portion 210 in the fire extinguishing module 200 corresponding to the installation position 110 is affected by the heat flow and melts, so that the fire extinguishing module 200 can release the fire extinguishing agent toward the one-way explosion-proof valve 310 of the battery cell to extinguish the fire and cool the battery cell, thereby ensuring the safety of the battery cell. Moreover, when the battery cell is not in a thermal runaway state, the one-way explosion-proof valve 310 is in a closed state, which can prevent the entry of the fire extinguishing agent or other impurities, thereby ensuring the stability of the battery cell.

[0082] An embodiment of the present application further provides an electrical device, comprising the energy storage system 10 as described above.

[0083] It is understandable that the electrical equipment having the energy storage system 10 described above can also bring the same or similar beneficial effects as the energy storage fire-fighting device because the energy storage system 10 can bring the same or similar beneficial effects as the energy storage fire-fighting device. For details, please refer to the description of the embodiment of the energy storage fire-fighting device, which will not be further elaborated here.

[0084] The technical solution described in the embodiment of the present application is applicable to electrical equipment using the energy storage system 10, such as battery vehicles, electric vehicles, ships, spacecraft, electric toys and electric tools, etc., wherein spacecraft include airplanes, rockets, space shuttles and spacecraft, etc., electric toys include fixed or mobile electric toys, specifically electric car toys, electric ship toys and electric airplane toys, etc., and electric tools include metal cutting power tools, grinding power tools, assembly power tools and railway power tools, specifically electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers.

[0085] The energy storage system 10 described in the embodiment of the present application is not limited to the electrical equipment described above, but for the sake of simplicity, the following embodiments are all explained by taking electric vehicles as an example. The electric vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. The interior of the electric vehicle can be provided with an energy storage system 10, for example, the energy storage system 10 can be provided at the bottom or the front or the rear of the electric vehicle. The energy storage system 10 can be used to power the electric vehicle, for example, the energy storage system 10 can be used as the operating power supply of the electric vehicle. The electric vehicle can also include a controller and a motor, and the controller is used to control the energy storage system 10 to power the motor, for example. The energy storage system 10 can be used for starting and navigating the electric vehicle. Of course, the energy storage system 10 can also be used to drive the electric vehicle, replacing or partially replacing fuel or natural gas to provide drive for the electric vehicle.

[0086] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. An energy storage fire fighting device, characterized in that: include: An energy storage box (100) is provided with a plurality of mounting positions (110) for mounting battery cells; A plurality of fire extinguishing modules (200) are arranged in the energy storage box (100) and are used to contain fire extinguishing agents; Each of the installation positions (110) is provided with the fire extinguishing module (200); the fire extinguishing module (200) has a hot melt portion (210) on one side close to the installation position (110); the hot melt portion (210) is used to melt when the battery cell at the installation position (110) is depressurized, so that the fire extinguishing module (200) releases the fire extinguishing agent.

2. The energy storage fire fighting device according to claim 1, characterized in that: The fire extinguishing module (200) is detachably installed in the energy storage box (100); and / or, The fire extinguishing module (200) comprises a fire extinguishing container (220); the fire extinguishing container (220) has a first accommodating chamber (221) for accommodating the fire extinguishing agent, and the fire extinguishing container (220) is provided with a spray port (222) connected to the first accommodating chamber (221), the spray port (222) being used to spray the fire extinguishing agent toward the battery cell at the installation position (110); the hot melt portion (210) is sealedly connected to the spray port (222).

3. The energy storage fire fighting device according to claim 2, characterized in that: The fire extinguishing container (220) is also provided with a guide channel (223); Both ends of the guide channel (223) are respectively connected to the first accommodating cavity (221) and the injection port (222).

4. The energy storage fire fighting device according to claim 3, characterized in that: The caliber of the guide channel (223) decreases gradually along the direction from the first accommodating cavity (221) to the injection port (222).

5. The energy storage fire fighting device according to claim 3, characterized in that: The guide channel (223) comprises a first guide section (2231), a straight section (2232) and a second guide section (2233) which are connected in sequence; the first guide section (2231) is arranged close to the first accommodating cavity (221), and the second guide section (2233) is arranged close to the injection port (222); In the direction where the first accommodating cavity (221) approaches the injection port (222), the caliber of the first guide section (2231) and the caliber of the second guide section (2233) decrease gradually.

6. The energy storage fire fighting device according to claim 5, characterized in that: The diameter of the first guide section (2231) close to one end of the straight section (2232) is smaller than or equal to the diameter of the straight section (2232); and / or, The caliber of the second guide section (2233) at one end away from the straight section (2232) is smaller than or equal to the caliber of the straight section (2232).

7. The energy storage fire fighting device according to any one of claims 1 to 6, characterized in that: The energy storage box (100) comprises an upper shell (120) and a lower shell (130) which are arranged in a matched manner; the lower shell (130) is provided with a second accommodating chamber (140); the installation position (110) is arranged in the second accommodating chamber (140); the fire extinguishing module (200) is arranged on a side of the upper shell (120) close to the accommodating chamber; and / or, A plurality of protrusions (150) arranged at intervals are formed in the energy storage box (100), and each of the protrusions (150) is provided with the fire extinguishing module (200); and / or, The melting point of the hot melt portion (210) is 100°C to 150°C.

8. An energy storage system, characterized in that: include: The energy storage fire fighting device according to any one of claims 1 to 7; A plurality of battery cells, each of the mounting positions (110) is equipped with the battery cell.

9. The energy storage system according to claim 8, characterized in that: The energy storage system (10) further includes a wiring harness isolation plate (300); The wiring harness isolation plate (300) covers each of the battery cells, and the wiring harness isolation plate (300) is provided with a plurality of one-way explosion-proof valves (310), and the one-way explosion-proof valves (310) correspond to the battery cells one by one; The hot melt portion (210) is disposed toward the one-way explosion-proof valve (310).

10. An electrical device, characterized in that: Comprising the energy storage system (10) as claimed in claim 8 or 9.

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