energy storage power supply

Abstract

The application discloses an energy storage power supply. The energy storage power supply comprises a shell, an electrical component and a fire-fighting module, the shell is internally provided with a mounting cavity and a discharge channel, the electrical component and the fire-fighting module are arranged in the mounting cavity, the shell is provided with a breather valve, the fire-fighting module comprises a spray module, the spray module is provided with a spray opening, and the discharge channel is in communication with the breather valve, the mounting cavity and the spray opening; the spray module is used for releasing a fire-retardant substance to the discharge channel through the spray opening when the electrical component is in thermal runaway, so that the discharge channel sprays the fire-retardant substance into the mounting cavity. In the energy storage power supply, when the electrical component is in thermal runaway, the spray module can release the fire-retardant substance to the discharge channel through the spray opening, so that the discharge channel fills the fire-retardant substance into the mounting cavity. Since the discharge channel can transport the fire-retardant substance in a certain direction, the fire-retardant substance can be quickly filled into the mounting cavity, and the fire-fighting reliability of the energy storage power supply is improved to a certain extent.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage power source. Background Technology

[0002] With the development of the new energy industry and continuous innovation in battery technology, the demand for energy storage power supplies is increasing. Energy storage power supplies include outdoor and indoor energy storage power supplies. Outdoor energy storage power supplies include portable energy storage power supplies, while indoor energy storage power supplies include home energy storage power supplies and balcony photovoltaic energy storage power supplies. Both indoor and outdoor energy storage power supplies are widely used in various scenarios such as outdoor camping, home emergency backup power, garages, balconies, and courtyards. Currently, both indoor and outdoor energy storage power supplies are susceptible to thermal runaway due to external factors (such as high-temperature environments) or internal factors (such as poor heat dissipation and poor cell uniformity). Although the probability of thermal runaway is extremely low, it is one of the key factors that users consider before purchasing energy storage power supplies. According to a survey by the European Photovoltaic Industry Association, nearly 80% of potential users abandon their purchases due to concerns about fire hazards. Therefore, improving the safety of energy storage power supplies is a pressing technical challenge that needs to be addressed. Utility Model Content

[0003] This application provides an energy storage power source to solve at least one of the aforementioned technical problems.

[0004] This application provides an energy storage power supply including a housing, electrical components, and a fire-fighting module. The housing has an installation cavity and a discharge channel. The electrical components and the fire-fighting module are located in the installation cavity. The housing is provided with a vent valve. The fire-fighting module includes a spray module with a nozzle. The discharge channel is connected to the vent valve, the installation cavity, and the nozzle.

[0005] The ejection module is used to release flame-retardant material into the emission channel through the nozzle when the electrical component experiences thermal runaway, causing the emission channel to spray the flame-retardant material into the mounting cavity.

[0006] In the aforementioned energy storage power supply, when thermal runaway occurs in the electrical components, the ejection module can release flame-retardant material into the emission channel through the nozzle, causing the emission channel to fill the installation cavity with flame-retardant material. Since the emission channel can transport the flame-retardant material in a specific direction, it allows the material to be rapidly filled into the installation cavity, thus improving the fire safety reliability of the energy storage power supply to a certain extent.

[0007] In some embodiments, the electrical component includes a battery module comprising a plurality of battery cells, each battery cell including an explosion-proof valve, and the discharge channel having an opening toward the explosion-proof valve.

[0008] In some embodiments, the explosion-proof valves of a plurality of the battery cells are located on a first side of the battery cell, and the explosion-proof valves of a plurality of the battery cells are located on a second side of the battery cell that is different from the first side. The discharge channel includes a first channel and a second channel, wherein the first channel is disposed opposite to the first side of the battery cell, and the second channel is disposed opposite to the second side of the battery cell, or;

[0009] The explosion-proof valves of all the battery cells are located on the same side of the battery cell, and the discharge channel is arranged opposite to the side of the battery cell where the explosion-proof valve is located.

[0010] In some embodiments, the discharge channel is located on the surface of the housing facing the mounting cavity.

[0011] In some embodiments, the electrical components include at least one of a battery module, an inverter, a battery protection board, and a battery management module.

[0012] In some embodiments, the fire-fighting module includes a temperature sensing wire, and the ejection module is connected to the electrical component via the temperature sensing wire. The temperature sensing wire is used to melt and allow the ejection module to release the flame-retardant substance into the emission channel through the nozzle when the electrical component experiences thermal runaway.

[0013] In some embodiments, a first protective layer is provided on the temperature sensing wire.

[0014] In some embodiments, the energy storage power supply includes a battery management module electrically connected to the ejection module, the battery management module being used to control the ejection module to eject the flame-retardant substance through the nozzle when thermal runaway of the electrical component is detected.

[0015] In some embodiments, the battery management module is electrically connected to the ejection module via a signal line, and the signal line is fitted with a second protective layer.

[0016] In some embodiments, the energy storage power supply includes a main battery pack and / or a power supply pack, the electrical components include a battery management module and a battery module, the electrical components of the main battery pack further include an inverter, and the battery management module of the main battery pack is electrically connected to the battery module and the inverter;

[0017] The battery management module of the power pack is used to communicate with the battery management module of the main battery pack.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0020] Figure 1 This is one of the structural schematic diagrams of the energy storage power supply according to the embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the main battery pack according to an embodiment of this application;

[0022] Figure 3 This is one of the exploded views of the main battery pack according to an embodiment of this application;

[0023] Figure 4 This is the second exploded view of the main battery pack according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the power supply package according to an embodiment of this application;

[0025] Figure 6 This is an exploded view of the power supply package according to an embodiment of this application;

[0026] Figure 7 This is a second schematic diagram of the energy storage power supply according to an embodiment of this application;

[0027] Figure 8 This is the third schematic diagram of the energy storage power supply according to the embodiments of this application;

[0028] Figure 9 This is a structural schematic diagram of the fire protection module according to an embodiment of this application;

[0029] Figure 10 This is a schematic diagram of the ejection module according to an embodiment of this application;

[0030] Figure 11 This is a schematic diagram of the structure of the battery cell according to an embodiment of this application;

[0031] Figure 12 This is a schematic diagram of the energy storage power supply module according to an embodiment of this application.

[0032] Explanation of key component reference numerals:

[0033] Energy storage power supply 100, housing 12, electrical components 14, fire protection module 16, mounting cavity 18, discharge channel 20, vent valve 22, emission module 24, nozzle 26, first housing 28, second housing 30, inverter 32, battery management module 34, separator 35, temperature sensing wire 36, battery module 38, battery cell 40, explosion-proof valve 42, opening 44, first channel 43, second channel 45, body 46, positive electrode 48, negative electrode 50, signal line 52, signal interface 53, first battery management module 54, first battery module 56, second battery management module 58, second battery module 60, main battery pack 102, power pack 104. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] Furthermore, 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, features 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.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0040] The energy storage power supply 100 in this application can refer to an outdoor energy storage power supply or an indoor energy storage power supply. Outdoor energy storage power supplies include portable energy storage power supplies, and indoor energy storage power supplies include household energy storage power supplies and balcony photovoltaic energy storage power supplies.

[0041] Portable power banks are designed for outdoor activities, mobile work, or emergency backup. They typically use high-energy-density lithium-ion or lithium iron phosphate batteries, with capacities ranging from hundreds to thousands of watt-hours. They feature multiple interfaces including AC output, DC output (such as a car charger port), and USB fast charging, allowing direct power to laptops, small appliances (such as rice cookers and electric fans), drones, cameras, and mobile phones. Their core features are portability, ease of operation, and immediate use. They also support solar panel charging and are commonly used in camping, road trips, disaster relief, or temporary power outages at home.

[0042] Balcony photovoltaic (PV) energy storage systems are miniature integrated PV and energy storage systems designed specifically for the balcony spaces of urban apartments or small residences. They typically consist of one or two small PV panels that can be easily installed on balcony railings or exterior walls, and an integrated energy storage unit that combines a PV controller, batteries (usually 3-5 kWh lithium iron phosphate), and an inverter. The core purpose is to allow users to generate and consume solar power using limited balcony space, reducing daytime electricity bills, and utilizing stored green electricity at night or during peak electricity prices. Installation is relatively simple, requiring no structural modifications to the building, making it an economical entry-level option for urban residents to achieve initial energy self-sufficiency and participate in green electricity use.

[0043] Home energy storage systems are stationary solutions that provide backup power and energy management for the entire household. System capacities typically range from 5kWh to tens of kWh, utilizing safer, longer-life lithium iron phosphate batteries and equipped with high-performance inverters that can connect to the home's distribution box. Their core function is to store off-peak electricity from the grid or solar power (if combined with a photovoltaic system), seamlessly switching power to critical loads in the home (such as refrigerators, lighting, internet, and medical equipment) during grid outages. This achieves energy self-sufficiency, reduces electricity bills (peak-valley arbitrage), and enhances resilience and independence in electricity usage. Professional installation is required, and it is a core component of building a smart home energy ecosystem.

[0044] Please see Figures 1 to 9 An energy storage power supply 100 according to an embodiment of this application includes a housing 12, electrical components 14, and a fire-fighting module 16. The housing 12 has an installation cavity 18 and a discharge channel 20. The electrical components 14 and the fire-fighting module 16 are located within the installation cavity 18. A vent valve 22 is provided on the housing 12. The fire-fighting module 16 includes a spray module 24 with a nozzle 26. The discharge channel 20 is connected to the vent valve 22, the installation cavity 18, and the nozzle 26. The spray module 24 is used to release flame-retardant material through the nozzle 26 into the discharge channel 20 when thermal runaway occurs in the electrical components 14, causing the discharge channel 20 to spray flame-retardant material into the installation cavity 18.

[0045] In the aforementioned energy storage power supply 100, when the electrical component 14 experiences thermal runaway, the ejection module 24 can release flame-retardant material into the discharge channel 20 through the nozzle 26, causing the discharge channel 20 to fill the mounting cavity 18 with flame-retardant material. Since the discharge channel 20 can transport the flame-retardant material in a certain direction, it can quickly fill the mounting cavity 18, thereby improving the fire-fighting reliability of the energy storage power supply 100 to a certain extent.

[0046] Specifically, the energy storage power supply 100 is a device that can store electrical energy (such as wind energy and solar energy) and output electrical energy. The energy storage power supply 100 may include, but is not limited to, portable energy storage power supply 100, balcony energy storage power supply 100, etc.

[0047] The housing 12 protects the components of the energy storage power supply 100 and the user. Optionally, the housing 12 may be made of metal. Electrical components 14 and the fire protection module 16 may be housed within the mounting cavity 18. The housing 12 may include a first housing 28 and a second housing 30, which are connected to enclose and form the mounting cavity 18. In one embodiment, please refer to... Figures 2 to 4 The energy storage power supply 100 may include a main battery pack 102, which includes an inverter 32 and a battery management module 34. The second housing 30 of the main battery pack 102 is a heat dissipation housing, and the inverter 32 and battery management module 34 may be disposed within the mounting cavity 18 portion of the heat dissipation housing. The energy storage power supply 100 includes a battery module 38, which is disposed within the mounting cavity 18 portion of the first housing 28. In one embodiment, please refer to... Figures 5 to 6 The energy storage power supply 100 may include a power pack 104. The first shell 28 of the power pack 104 is a box-shaped structure with one end open. The second shell 30 is plate-shaped and is located on the side of the first shell 28 with an opening to close the opening of the first shell 28. The battery management module 34 and the battery module 38 are located in the mounting cavity 18 of the first shell 28.

[0048] The vent valve 22 on the housing 12 can open when the pressure inside the mounting cavity 18 exceeds a set pressure, allowing pressure to be released from the mounting cavity 18, thereby improving the safety of the energy storage power supply 100 to a certain extent. The ejection module 24 is equipped with a nozzle 26. In the event of thermal runaway of the electrical component 14, the ejection module 24 can eject flame-retardant material through the nozzle 26 to prevent the spread of thermal runaway within the housing 12. Optionally, the ejection module 24 can be triggered to eject flame-retardant material upon receiving an electric start signal or by an open flame igniting the thermally sensitive wire. Optionally, the ejection module 24 should ensure that the nozzle 26 is closed before ejection to guarantee reliable performance. Optionally, there should be no obstructions within a certain distance (e.g., 0.05m) directly in front of the nozzle 26 to ensure smoother ejection.

[0049] Optionally, in one embodiment, the ejection module 24 can be a thermal aerosol ejection module. Specifically, the ejection module 24 includes an electric initiator, which can be connected to the battery management module 34. The battery management module 34 can control the electric initiator to ignite the solid thermal aerosol inside the ejection module 24, causing the solid thermal aerosol to absorb heat and decompose into vaporized metal ions, carbonates, and fixed particles, that is, decompose into flame-retardant substances.

[0050] In one embodiment, the ejection module 24 is connected to a temperature sensing wire 36. When the temperature sensing wire 36 melts, the temperature is transferred to the ejection module 24 to ignite the solid thermal aerosol inside the ejection module 24, causing the solid thermal aerosol to absorb heat and decompose into vaporized metal ions, carbonates, and fixed particles, that is, decompose into flame-retardant substances. The temperature sensing wire 36 may include, but is not limited to, a thermal wire.

[0051] The decomposed gasified metal ions (such as Sr, K, Mg or cations that have lost electrons) exist in the form of vapor and undergo multiple chain reactions with active groups in combustion (such as H·, ·OH and O·). The active groups are consumed in large quantities and their concentrations continuously decrease, thereby disrupting the combustion chain reaction mechanism and inhibiting combustion.

[0052] Solid particles can adsorb intermediates (·OH, H· and O·) in the combustion chain reaction and catalyze their recombination into stable molecules, thereby interrupting the branching chain reaction in the combustion process.

[0053] It is understood that in this embodiment, the spray module 24 stores a thermal aerosol that is solid at room temperature, occupying a small volume. When the electrical component 14 experiences thermal runaway, the spray module 24 can quickly generate a non-toxic, non-corrosive, and ozone-depleting flame-retardant substance. In other embodiments, the spray module 24 can be other types of spray modules 24 (such as a dry powder spray module 24, a foam spray module 24, etc.), and is not limited to a thermal aerosol spray module 24.

[0054] The discharge channel 20 is connected to the mounting cavity 18 and the nozzle 26. When the emission module 24 releases flame-retardant material into the discharge channel 20 through the nozzle 26, the discharge channel 20 can quickly spray the flame-retardant material into the mounting cavity 18, thereby filling the mounting cavity 18 and preventing the spread of thermal runaway. Optionally, the opening 44 of the discharge channel 20 can be oriented towards the electrical component 14, so that when the electrical component 14 experiences thermal runaway, the flame-retardant material can be quickly sprayed towards the electrical component 14.

[0055] The discharge channel 20 is connected to the vent valve 22 and the mounting cavity 18. When the electrical component 14 experiences thermal runaway, the generated high-temperature gas is released into the mounting cavity 18 and can be guided by the discharge channel 20 to the vent valve 22, so that the vent valve 22 can depressurize the mounting cavity 18 in a timely manner.

[0056] Electrical component 14 is a component that uses or stores electricity within the energy storage power supply 100. Electrical component 14 includes, but is not limited to, battery module 38, inverter 32, and battery management module 34. During the use of the energy storage power supply 100, electrical component 14 may experience thermal runaway. Optionally, thermal runaway of electrical component 14 can occur when its temperature exceeds a set temperature. The set temperature can refer to the melting temperature of the temperature sensing wire 36 or the temperature preset by the battery management module 34.

[0057] Optionally, the temperature of electrical component 14 can be provided by a sampling component. For example, electrical component 14 may include a battery module 38, which includes battery cells 40. The sampling component can be electrically connected to the battery cells 40 to collect parameter information such as temperature, voltage, and current of the battery cells 40. This parameter information is then transmitted to the battery management module 34. Optionally, the temperature of electrical component 14 can also be collected by other temperature sensors.

[0058] In some implementations, please refer to Figures 3 to 8 Electrical component 14 includes battery module 38, battery module 38 includes multiple battery cells 40, battery cells 40 include explosion-proof valves 42, and discharge channel 20 has an opening 44 toward the explosion-proof valves 42.

[0059] Therefore, when thermal runaway occurs in the cell 40, the discharge channel 20 can promptly discharge high-temperature and high-pressure substances out of the casing 12 through the discharge channel 20 and the vent valve 22, thereby improving the safety of the energy storage power supply 100.

[0060] Specifically, when the battery cell 40 experiences thermal runaway, on the one hand, the explosion-proof valve 42 bursts open, ejecting high-temperature and high-pressure substances. These substances can enter the discharge channel 20 through the opening 44, be guided by the vent valve 22, and then discharged outside the housing 12. On the other hand, when the battery cell 40 experiences thermal runaway, the ejection module 24 can release flame-retardant substances into the discharge channel 20 through the nozzle 26, allowing the discharge channel 20 to eject flame-retardant substances into the mounting cavity 18. This suppresses the thermal runaway of the battery cell 40 and prevents it from spreading to other battery cells 40 and other electrical components 14.

[0061] When a high-temperature, high-pressure substance encounters a flame-retardant substance within the emission channel 20, the flame-retardant substance can cool and depressurize the high-temperature, high-pressure substance, thereby further suppressing the spread of thermal runaway. Optionally, the emission channel 20 can spray the flame-retardant substance into the mounting cavity 18 through an opening 44 corresponding to the cell 40 where thermal runaway has occurred, thereby suppressing thermal runaway more quickly.

[0062] In some embodiments, the explosion-proof valves 42 of a plurality of battery cells 40 are located on the first side of the battery cell 40, and the explosion-proof valves 42 of a plurality of battery cells 40 are located on the second side of the battery cell 40 that is different from the first side. The discharge channel 20 includes a first channel 43 and a second channel 45. The first channel 43 is disposed opposite to the first side of the battery cell 40, and the second channel 45 is disposed opposite to the second side of the battery cell 40, or;

[0063] The explosion-proof valves 42 of all cells 40 are located on the same side of the cell 40, and the discharge channel 20 is set opposite to the side of the cell 40 where the explosion-proof valve 42 is located.

[0064] This can further improve the efficiency of suppressing thermal runaway.

[0065] Alternatively, in one implementation, please combine Figure 11 The battery cell 40 includes a body 46, a positive electrode 48, and a negative electrode 50. The positive electrode 48 and the negative electrode 50 are located at both ends of the body 46 along its length. An explosion-proof valve 42 is located on one side where the positive electrode 48 is located. Multiple battery cells 40 of the battery module 38 can be electrically connected in series. Please refer to... Figures 2 to 4 For the main battery pack 102, the first side of the battery cell 40 is the front side, and the second side is the rear side. Explosion-proof valves 42 of several battery cells 40 are located on the front side of the battery cell 40, and explosion-proof valves 42 of several battery cells 40 are located on the rear side of the battery cell 40. The busbar can electrically connect the battery cells 40 on both the front and rear sides. Please refer to... Figures 5 to 6 For the power pack 104, the first side of the battery cell 40 is the upper side and the second side is the lower side. The explosion-proof valves 42 of some battery cells 40 are located on the upper side of the battery cell 40 and the explosion-proof valves 42 of some battery cells 40 are located on the lower side of the battery cell 40. The busbar can electrically connect the battery cell 40 on the upper and lower sides of the battery cell 40.

[0066] In one embodiment, the energy storage power supply 100 may include a main battery pack 102 and at least one power booster pack 104. The power booster pack 104 can increase the capacity, voltage, current, etc. of the energy storage power supply 100, thereby improving the performance of the energy storage power supply 100. The number of power booster packs 104 can be set according to requirements. Figure 1 In this embodiment, the energy storage power supply 100 includes two power packs 104. In one embodiment, the power packs 104 may be omitted from the energy storage power supply 100.

[0067] In one embodiment, the positive electrode 48 and the negative electrode 50 of the battery cell 40 are located at the same end of the body 46, and the explosion-proof valve 42 may be located on the side where the positive electrode 48 is located or on the other side different from the side where the positive electrode 48 is located.

[0068] When thermal runaway occurs in cell 40, explosion-proof valve 42 ejects high-temperature, high-pressure material. The high-temperature, high-pressure material ejected from the explosion-proof valve 42 on the first side of cell 40 can quickly enter the first channel 43 and be discharged outside the housing 12 via vent valve 22. The high-temperature, high-pressure material ejected from the explosion-proof valve 42 on the second side of cell 40 can quickly enter the second channel 45 and be discharged outside the housing 12 via vent valve 22, thereby further improving the efficiency of suppressing thermal runaway. Figure 8 In the illustrated embodiment, the first channel 43 and the second channel 45 are connected to the same vent valve 22, and the first channel 43 and the second channel 45 are connected to different nozzles 26. In one embodiment, the first channel 43 is connected to one vent valve 22, the second channel 45 is connected to another vent valve 22, and the first channel 43 and the second channel 45 may be connected to the same nozzle 26.

[0069] In one embodiment, the explosion-proof valves 42 of all cells 40 are located on the same side of the cells 40. For example, for the main battery pack 102, the explosion-proof valves 42 of all cells 40 are located on the front or rear side of the cells 40, and for the power pack 104, the explosion-proof valves 42 of all cells 40 are located on the upper or lower side of the cells 40.

[0070] Please combine Figure 7 When thermal runaway occurs in the battery cell 40, the explosion-proof valve 42 will eject high-temperature and high-pressure substances. The high-temperature and high-pressure substances ejected by the explosion-proof valve 42 on the side of the battery cell 40 can enter the discharge channel 20 in a timely and rapid manner, and be discharged outside the housing 12 through the vent valve 22, thereby further improving the efficiency of suppressing thermal runaway.

[0071] In some embodiments, the discharge passage 20 is provided on the surface of the housing 12 facing the mounting cavity 18.

[0072] Therefore, the relative position between the emission channel 20 and the electrical component 14 is easy to achieve, thereby improving the production efficiency of the energy storage power supply 100.

[0073] Specifically, the discharge channel 20 is located on the surface of the housing 12 facing the mounting cavity 18. When the battery module 38 and other electrical components 14 of the energy storage power supply 100 are assembled in the housing 12, the relative positional relationship between the discharge channel 20 and the electrical components 14 can meet the design requirements, thereby ensuring that the fire protection performance of the energy storage power supply 100 meets the design requirements to a certain extent.

[0074] Optionally, in one embodiment, the housing 12 has a discharge section on its surface facing the mounting cavity 18, the discharge section being integrally formed with the housing 12, and the discharge section having a discharge channel 20. In one embodiment, the energy storage power supply 100 has a pipe with a discharge channel 20. In one embodiment, the housing 12 includes a first shell 28 and a second shell 30, and at least one of the first shell 28 and the second shell 30 has a discharge channel 20 on its surface facing the mounting cavity 18.

[0075] In some implementations, please refer to Figures 2 to 6 Electrical component 14 includes at least one of battery module 38, inverter 32, battery protection board (not shown) and battery management module 34.

[0076] Therefore, various electrical components 14 of the energy storage power supply 100 can be monitored.

[0077] Specifically, in one embodiment, the electrical component 14 includes a battery module 38, an inverter 32, a battery protection board, and a battery management module 34. That is, when any one, two, three, or four of the battery module 38, inverter 32, battery protection board, and battery management module 34 experience thermal runaway, the ejection module 24 can release flame-retardant material into the emission channel 20 through the nozzle 26, thereby enabling comprehensive monitoring of thermal runaway of the energy storage power supply 100.

[0078] The battery module 38 may include multiple battery cells 40 and a busbar component, which can electrically connect the multiple battery cells 40 in series, parallel, or mixed connection. Mixed connection refers to the multiple battery cells 40 being connected in both series and parallel configurations. Optionally, the battery protection board may include an Energy Management System (EMS), which coordinates the interaction between the battery module 38, inverter 32, battery management module 34, and the power grid / load to dynamically adjust the charging and discharging strategy. The battery management module 34 is equipped with a Battery Management System (BMS), responsible for monitoring the status of the battery cells 40, providing safety protection, and optimizing performance.

[0079] In some implementations, please refer to Figure 7 , Figure 8 and Figure 9 The fire protection module 16 includes a temperature sensing wire 36. The ejection module 24 is connected to the electrical component 14 through the temperature sensing wire 36. The temperature sensing wire 36 is used to melt when the electrical component 14 experiences thermal runaway, so that the ejection module 24 can release flame-retardant substances into the discharge channel 20 through the nozzle 26.

[0080] Therefore, the ejection module 24 can be triggered by the temperature of the temperature sensing line 36, with a high success rate and little interference.

[0081] Specifically, the temperature sensing wire 36 can be connected to the electrical component 14. When the energy storage power supply 100 is working, the electrical component 14 generates heat, which is transferred to the temperature sensing wire 36. When the electrical component 14 experiences thermal runaway, its temperature will rise. When the temperature transferred from the electrical component 14 to the temperature sensing wire reaches the melting temperature of the temperature sensing wire 36, the temperature sensing wire 36 will melt, thereby triggering the ejection module 24 to release flame-retardant material into the emission channel 20 through the nozzle 26.

[0082] Optionally, in one embodiment, the spraying module 24 is a thermal aerosol spraying module 24 (thermal aerosol fire extinguishing device). When the electrical component 14 experiences thermal runaway, the temperature sensing wire 36 melts, activating the aerosol generator within the spraying module 24. The heat released by the aerosol generator through an oxidation-reduction reaction decomposes the chemical coolant, enabling both the aerosol generator and the coolant to participate in fire extinguishing, thereby effectively suppressing thermal runaway. Optionally, the temperature sensing wire 36 includes a thermally sensitive wire.

[0083] In one embodiment, the temperature sensing wire 36 can be arranged on the battery cell 40. For example, the temperature sensing wire 36 can be arranged at one end of the body 46 and close to the explosion-proof valve 42, so that when the explosion-proof valve 42 sprays high-temperature and high-pressure substances, the temperature sensing wire 36 can be melted in time to trigger the spraying module 24 to spray flame-retardant substances. Optionally, on one side of the battery module 38, the temperature sensing wire 36 can be arranged in a "bow" shape or a U-shape. Optionally, the temperature sensing wire 36 can be arranged around the battery module 38 in the circumferential direction.

[0084] When other electrical components 14 (such as inverter 32, battery protection board and battery management circuit board, etc.) experience thermal runaway, heat will be transferred to the temperature sensing wire 36 inside the mounting cavity 18. When the heat transferred to the temperature sensing wire 36 causes the temperature sensing wire 36 to melt, it can also trigger the ejection module 24 to eject flame-retardant material.

[0085] In some embodiments, a first protective layer is provided on the temperature sensing wire 36.

[0086] This prevents the temperature sensing wire 36 from being physically damaged during assembly and transportation, thus ensuring the normal operation of the fire protection module 16. It should be noted that the first protective layer should be made of a material that will not substantially affect the normal operation of the fire protection module 16. Optionally, the first protective layer can be a fiberglass tube.

[0087] In some implementations, please refer to Figure 12 The energy storage power supply 100 includes a battery management module 34, which is electrically connected to the ejection module 24. The battery management module 34 is used to control the ejection module 24 to eject flame-retardant material through the nozzle 26 when thermal runaway of the electrical component 14 is detected.

[0088] Therefore, the temperature detection of the battery management module 34 can trigger the ejection module 24 to eject flame-retardant material, thereby realizing the active fire-fighting function.

[0089] Optionally, the battery management module 34 may be located between the battery module 38 and the inverter 32, and a partition 35 is provided between the battery management module 34 and the inverter 32 to prevent the temperature of the inverter 32 from adversely affecting the battery management module 34.

[0090] In one embodiment, the battery module 38 may include a sampling component that can collect parameter information such as temperature, voltage, and current of the battery cell 40. The battery management module 34 can obtain the temperature of the battery cell 40 through the sampling component. The emission module 24 may include an electric initiator that is electrically connected to the battery management module 34 and is used to receive control signals from the battery management module 34.

[0091] When the temperature of the cell 40 is higher than the set temperature, the battery management module 34 can determine that the cell 40 has thermal runaway, and then send a control signal to the electric initiator to activate the flame retardant material of the spray module 24, so that the spray module 24 sprays the flame retardant material through the nozzle 26.

[0092] Understandably, when other electrical components 14 experience thermal runaway, heat can diffuse within the mounting cavity 18. When the temperature of the heat diffused to the sampling component exceeds a set temperature, the battery management module 34 can control the ejection module 24 to eject flame-retardant material.

[0093] Optionally, in one embodiment, the energy storage power supply 100 may include a temperature sensor electrically connected to the battery management module 34. The temperature sensor may be located on the electrical component 14 to be monitored to detect the temperature of the electrical component 14. When the temperature of the electrical component 14 is greater than or equal to a set temperature, the battery management module 34 may control the ejection module 24 to eject flame-retardant material.

[0094] Understandably, when other electrical components 14 experience thermal runaway, heat can diffuse within the mounting cavity 18. When the temperature of the heat diffused to the temperature sensor exceeds the set temperature, the battery management module 34 can control the ejection module 24 to eject flame-retardant material.

[0095] In some implementations, please refer to Figure 9 The battery management module 34 and the ejection module 24 are electrically connected via a signal line 52, and a second protective layer is provided on the signal line 52.

[0096] This prevents the signal line 52 from being physically damaged during assembly, transportation, etc., which could affect the normal operation of the battery management module 34 and the fire protection module 16.

[0097] Specifically, please combine Figure 9 and Figure 10 The ejection module 24 is equipped with a signal interface 53 for connection to the signal line 52. The battery management module 34 is communicatively connected to the ejection module 24 via the signal line 52. When thermal runaway of the electrical component 14 is detected, the battery management module 34 can control the ejection module 24 to eject flame-retardant material through the nozzle 26, thereby effectively suppressing the thermal runaway.

[0098] The signal line 52 is covered with a second protective layer to prevent physical damage to the signal line 52 during assembly, transportation, etc., which could affect the normal operation of the battery management module 34 and the emission module 24. Optionally, the second protective layer can be a fiberglass tube.

[0099] In some implementations, please refer to Figure 1 The energy storage power supply 100 includes a main battery pack 102 and / or a power supply pack 104. Electrical components 14 include a battery management module 34 and battery modules 38. The electrical components 14 of the main battery pack 102 also include an inverter 32. The battery management module 34 of the main battery pack 102 is electrically connected to the battery modules 38 and the inverter 32. The battery management module 34 of the power supply pack 104 is used for communicative connection with the battery management module 34 of the main battery pack 102.

[0100] In this way, capacity can be flexibly expanded according to the needs of different scenarios.

[0101] Specifically, the main battery pack 102 is the main battery pack in the energy storage power supply 100, and the power-up pack 104 is an auxiliary battery pack used to expand the capacity of the main battery pack 102. In some embodiments, please refer to... Figure 2 The energy storage power supply 100 includes a main battery pack 102. In some embodiments, please refer to... Figure 1 The energy storage power supply 100 includes a main battery pack 102 and a power pack 104.

[0102] Among them, the battery management module 34 of the main battery pack 102 is the first battery management module 54, the battery module 38 is the first battery module 56, and the first battery management module 54 is electrically connected to the inverter 32 and the first battery module 56.

[0103] The battery management module 34 of the power pack 104 is a second battery management module 58, and the battery module 38 is a second battery module 60. The second battery management module 58 and the second battery module 60 are electrically connected. The second battery management module 58 is communicatively connected to the first battery management module 54.

[0104] The first battery management module 54 can monitor the voltage, temperature, current, and other parameters of each cell 40 in the first battery module 34, and the second battery management module 58 can monitor the voltage, temperature, current, and other parameters of each cell 40 in the second battery module 34. The second battery management module 58 then transmits the parameter information of the cells 40 in the power pack 104 to the first battery management module 54. During charging and discharging, the first battery management module 54 can output corresponding control commands based on the detected parameter information of the cells 40 to ensure the safe and stable operation of the entire energy storage power supply 100. For example, the first battery management module 54 can use the inverter 32 to convert the DC power from the first battery module 56 and the second battery module 60 into the AC power required for external output, or convert the AC power into DC power to charge the first battery module 56 and the second battery module 60. Therefore, the power pack 104 can be flexibly used for capacity expansion according to the needs of different scenarios.

[0105] It is understood that when the fire protection module 16 is applied to the power supply pack 104, the arrangement of the temperature sensing wire 36 in the power supply pack 104 may be the same as or different from the arrangement of the temperature sensing wire 36 in the main battery pack 102. The electrical components 14 monitored may be the same or different, and this application does not limit them.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, combinations, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy storage power source, characterized in that, The device includes a housing, electrical components, and a fire-fighting module. The housing has an installation cavity and a discharge channel. The electrical components and the fire-fighting module are located in the installation cavity. The housing is equipped with a vent valve. The fire-fighting module includes a spray module with a nozzle. The discharge channel is connected to the vent valve, the installation cavity, and the nozzle. The ejection module is used to release flame-retardant material into the emission channel through the nozzle when the electrical component experiences thermal runaway, causing the emission channel to spray the flame-retardant material into the mounting cavity.

2. The energy storage power supply according to claim 1, characterized in that, The electrical component includes a battery module, the battery module includes multiple battery cells, each battery cell includes an explosion-proof valve, and the discharge channel has an opening toward the explosion-proof valve.

3. The energy storage power supply according to claim 2, characterized in that, The explosion-proof valves of a plurality of the battery cells are located on a first side of the battery cell, and the explosion-proof valves of a plurality of the battery cells are located on a second side of the battery cell that is different from the first side. The discharge channel includes a first channel and a second channel, wherein the first channel is disposed opposite to the first side of the battery cell, and the second channel is disposed opposite to the second side of the battery cell, or; The explosion-proof valves of all the battery cells are located on the same side of the battery cell, and the discharge channel is arranged opposite to the side of the battery cell where the explosion-proof valve is located.

4. The energy storage power supply according to claim 1, characterized in that, The discharge channel is located on the surface of the housing facing the mounting cavity.

5. The energy storage power supply according to claim 1, characterized in that, The electrical components include at least one of a battery module, an inverter, a battery protection board, and a battery management module.

6. The energy storage power supply according to claim 1, characterized in that, The fire-fighting module includes a temperature sensing wire, and the ejection module is connected to the electrical component through the temperature sensing wire. The temperature sensing wire is used to melt and allow the ejection module to release the flame-retardant substance into the emission channel through the nozzle when the electrical component experiences thermal runaway.

7. The energy storage power supply according to claim 6, characterized in that, The temperature sensing line is fitted with a first protective layer.

8. The energy storage power supply according to claim 1, characterized in that, The energy storage power supply includes a battery management module, which is electrically connected to the ejection module. The battery management module is used to control the ejection module to eject the flame-retardant substance through the nozzle when thermal runaway of the electrical component is detected.

9. The energy storage power supply according to claim 8, characterized in that, The battery management module and the ejection module are electrically connected via a signal line, and a second protective layer is provided on the signal line.

10. The energy storage power supply according to claim 1, characterized in that, The energy storage power supply includes a main battery pack and / or a power supply pack. The electrical components include a battery management module and a battery module. The electrical components of the main battery pack also include an inverter. The battery management module of the main battery pack is electrically connected to the battery module and the inverter. The battery management module of the power pack is used to communicate with the battery management module of the main battery pack.

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