energy storage power supply

Abstract

The utility model discloses a kind of energy storage power supplies. Energy storage power supply includes electrical component, temperature module, fire-fighting module and pipeline assembly, fire-fighting module includes temperature sensing wire and spouts and emits module, temperature sensing wire is used to fuse when electrical component occurs thermal runaway, spouts and emits module and is connected with temperature sensing wire and is used to emit fire -retardant substance when temperature sensing wire fuses, flow channel assembly includes flow channel and valve, the import of flow channel is communicated with spouts and emits module, the outlet of flow channel is set to electrical component, valve is used to control the opening and closing of the outlet of flow channel;Temperature module is used to collect the temperature of electrical component, and when the temperature of electrical component is greater than or equal to the fuse temperature of temperature sensing wire, control valve opening in the set range of electrical component greater than or equal to fuse temperature, make fire -retardant substance that spouts and emits module spouts from the outlet of corresponding flow channel to electrical component. In the above-mentioned energy storage power supply, the spread of thermal runaway of energy storage power supply can be effectively inhibited.

Description

Technical Field

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

[0002] In related technologies, energy storage power supplies include electrical components such as battery cells, inverters, battery protection boards, and monitoring circuit boards. These electrical components may experience thermal runaway due to overcharging, environmental overheating, or other reasons, releasing a large amount of heat instantaneously. This heat can be transferred to surrounding electrical components, causing them to also experience thermal runaway, which can then spread and even cause combustion and explosion, leading to a fire. Utility Model Content

[0003] This utility model provides an energy storage power supply to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides an energy storage power supply. The energy storage power supply includes electrical components, a temperature module, a fire suppression module, and a flow channel assembly. The fire suppression module includes a temperature sensing wire and a spray module. The temperature sensing wire is used to melt when the electrical components experience thermal runaway. The spray module is connected to the temperature sensing wire and is used to spray flame-retardant material when the temperature sensing wire melts. The flow channel assembly includes a flow channel and a valve. The inlet of the flow channel is connected to the spray module, and the outlet of the flow channel is oriented towards the electrical components. The valve is used to control the opening and closing of the outlet of the flow channel.

[0005] The temperature module is used to collect the temperature of the electrical component, and when the temperature of the electrical component is greater than or equal to the melting temperature of the temperature sensing wire, it controls the valve of the electrical component with a temperature greater than or equal to the melting temperature to open within a set range, so that the flame-retardant material sprayed by the ejection module flows from the outlet of the corresponding flow channel to the electrical component.

[0006] In the aforementioned energy storage power supply, when an electrical component experiences thermal runaway, the temperature sensing wire melts, triggering the ejection module to spray flame-retardant material into the energy storage power supply through the flow channel. Simultaneously, the temperature module can control the opening of valves on electrical components with temperatures greater than or equal to the melting temperature of the temperature sensing wire within a set range, allowing the flame-retardant material to flow precisely to the electrical component experiencing thermal runaway, thereby effectively suppressing the spread of thermal runaway in the energy storage power supply.

[0007] In some embodiments, the electrical component includes a battery module, and the temperature sensing wire is disposed on the battery module.

[0008] In some embodiments, the electrical component includes a battery module, the battery module includes a bracket and a battery cell, the bracket has a through hole, the battery cell includes a body and an electrode, the electrode is disposed on at least one end face of the body, the bracket is fixedly connected to the body, the electrode passes through the through hole, and the temperature module includes a temperature sensor, the temperature sensor is disposed on the side of the bracket away from the body and close to the through hole.

[0009] In some embodiments, the outlet of the flow channel is oriented toward the through hole.

[0010] In some embodiments, the flow channel includes a plurality of first branch channels, the inlet of each first branch channel being connected to the ejection module, the outlet of each first branch channel being disposed toward at least one of the electrical components, and each first branch channel being provided with the valve.

[0011] In some embodiments, the flow channel includes a main flow channel and a plurality of second branch flow channels that are interconnected. The inlet of the main flow channel is connected to the ejection module, and the outlet of each second branch flow channel is disposed toward at least one of the electrical components. Each second branch flow channel is provided with the valve.

[0012] In some embodiments, a plurality of second diversion channels are located on opposite sides of the main channel.

[0013] In some embodiments, the flow channel assembly includes a conduit, the electrical component includes a battery module, the conduit and the battery module are disposed opposite to each other, and the conduit has a flow channel inside it.

[0014] In some embodiments, the energy storage power source includes a containment cavity, the ejection module is disposed within the containment cavity, the containment cavity has an opening, and the pipe communicates with the opening.

[0015] In some embodiments, the energy storage power supply includes a battery management module connected to the ejection module, the temperature module, and the valve. The battery management module receives the temperature of the electrical component output by the temperature module. When the temperature of the electrical component is greater than or equal to a set temperature, the battery management module controls the ejection module to eject the flame-retardant substance and controls the valve of the electrical component with a temperature greater than or equal to the set temperature to open within the set range, so that the flame-retardant substance ejected by the ejection module flows from the outlet of the corresponding flow channel to the electrical component.

[0016] In some embodiments, the battery management module is communicatively connected to the ejection module. When the temperature sensing wire melts, the ejection module sends a thermal runaway signal to the battery management module, and the battery management module issues an alarm based on the thermal runaway signal.

[0017] In some embodiments, the ejection module includes a thermal aerosol.

[0018] In some embodiments, the electrical components include a battery module, the energy storage power supply includes a main battery pack and / or a power pack, the main battery pack includes a first battery management module and an inverter, the first battery management module is electrically connected to the inverter and the battery module, and the power pack includes a second battery management module, the second battery management module being used for communicative connection with the first battery management module.

[0019] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the energy storage power supply according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the main battery pack according to an embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the electrical components and fire protection module according to an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of a scenario involving a battery module and a fire-fighting module according to an embodiment of this utility model;

[0025] Figure 5 This is another schematic diagram of the battery module and fire protection module according to an embodiment of the present utility model;

[0026] Figure 6 This is an exploded view of the battery module according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the flow channel assembly, ejection module, and receiving cavity according to an embodiment of the present invention;

[0028] Figure 8 This is a partial structural schematic diagram of the main battery pack according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of another part of the main battery pack according to an embodiment of the present invention;

[0030] Figure 10This is a schematic diagram of the ejection module according to an embodiment of the present invention;

[0031] Figure 11 This is a structural schematic diagram of the fire protection module according to an embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram of the structure of the battery cell according to an embodiment of the present invention.

[0033] Explanation of key component symbols:

[0034] Energy storage power supply 1000, electrical components 100, fire protection module 200, flow channel assembly 300, housing cavity 400, main battery pack 500, power supply pack 600, busbar component 700, signal line 800, housing assembly 900, battery module 101, temperature sensing wire 201, emission module 202, flow channel 301, valve 302, inverter 501, bracket 1011, battery cell 1012, through hole 1013, main body 1014, electrode 1015, main flow channel 3011, second branch flow channel 3012, first branch flow channel 3013, temperature module 10, pipe 20, main pipe 21, second branch pipe 22, first branch pipe 23, interface 30, battery management module 40, partition plate 50, nozzle 60, first battery module 101a, second battery module 101b. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the 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 the embodiments of this utility model, and should not be construed as limiting the embodiments of this utility model.

[0036] Please see Figures 1 to 5 This utility model provides an energy storage power supply 1000. The energy storage power supply 1000 includes an electrical component 100, a temperature module 10, a fire-fighting module 200, and a flow channel assembly 300. The fire-fighting module 200 includes a temperature sensing wire 201 and an ejection module 202. The temperature sensing wire 201 is used to melt when the electrical component 100 experiences thermal runaway. The ejection module 202 is connected to the temperature sensing wire 201 and is used to eject flame-retardant material when the temperature sensing wire 201 melts. The flow channel assembly 300 includes a flow channel 301 and a valve 302. The inlet of the flow channel 301 is connected to the ejection module 202, and the outlet of the flow channel 301 is disposed towards the electrical component 100. The valve 302 is used to control the opening and closing of the outlet of the flow channel 301.

[0037] The temperature module 10 is used to collect the temperature of the electrical component 100, and when the temperature of the electrical component 100 is greater than or equal to the melting temperature of the temperature sensing wire 201, it controls the valve 302 of the electrical component 100 with a temperature greater than or equal to the melting temperature to open within a set range, so that the flame-retardant material sprayed by the spraying module 202 flows from the outlet of the corresponding flow channel 301 to the electrical component 100.

[0038] In the aforementioned energy storage power supply 1000, when the electrical component 100 experiences thermal runaway, the temperature sensing wire 201 melts, triggering the ejection module 202 to eject flame-retardant material into the energy storage power supply 1000 through the flow channel 301. Simultaneously, the temperature module 10 can control the opening of valves 302 of electrical components 100 with temperatures greater than or equal to the melting temperature of the temperature sensing wire 201 within a set range, allowing the flame-retardant material to flow precisely to the electrical component 100 that has experienced thermal runaway, thereby effectively suppressing the spread of thermal runaway in the energy storage power supply 1000.

[0039] The energy storage power supply 1000 in this utility model can refer to a household energy storage power supply, a balcony photovoltaic energy storage power supply, or a portable energy storage power supply, wherein:

[0040] Home energy storage typically refers to large-capacity battery energy storage devices (such as lithium battery packs), often used in conjunction with rooftop photovoltaic (PV) systems. Its core function is to store excess electricity generated by PV power generation or to utilize lower-priced electricity during off-peak hours. During periods of insufficient PV power generation (such as at night or on rainy days) or peak grid electricity prices, the energy storage system can release electricity for household use, significantly improving household energy self-sufficiency, reducing electricity bills, and providing critical backup power during grid outages. These systems generally require professional installation and have capacities ranging from 5 kWh to tens of kWh, making them suitable for households with stable electricity needs, those seeking energy independence, or those needing to cope with frequent power outages.

[0041] Balcony photovoltaic-storage power supply is a miniaturized, modular, plug-and-play photovoltaic power generation and energy storage solution designed for apartment dwellers, renters, or families with limited space. It typically consists of 1-2 small photovoltaic panels (power ranging from 200W to 800W) that can be directly installed on balconies, windowsills, or exterior walls, and an integrated or separate small-capacity energy storage unit (e.g., 0.5kWh-2kWh). Its core principle is to generate electricity locally on the balcony, prioritizing power for low-power appliances (such as lighting, routers, and small appliances) on or near the balcony. Excess energy can be stored or fed into the grid (in areas where grid connection is permitted). Installation is extremely simple, requiring no modifications to the building's electrical circuits (usually just plugging it into a wall outlet), with a low investment threshold. Its main purpose is to reduce some daily electricity costs and experience green power generation.

[0042] 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, making them an ideal power solution for camping, road trips, disaster relief, or temporary power outages at home.

[0043] Specifically, please combine Figure 1 Energy storage power supply 1000 refers to a device capable of storing electrical energy in the form of chemical energy and releasing it when needed, used for storing and releasing electrical energy to achieve regulation and supply of electrical energy. Energy storage power supply 1000 includes a main battery pack 500 and a power supply pack 600. Energy storage power supply 1000 includes electrical components 100, a temperature module 10, a fire suppression module 200, and a flow channel assembly 300. Electrical components 100 include, but are not limited to, a battery module 101, an inverter 501, a battery protection board, and a monitoring circuit board.

[0044] In one embodiment, the energy storage power supply 1000 includes a housing assembly 900, which has a receiving cavity in which electrical components 100, temperature module 10, fire protection module 200 and flow channel assembly 300 can be accommodated. The housing assembly 900 is used to protect the components located in the receiving cavity.

[0045] The battery module 101 is formed by connecting and encapsulating multiple battery cells 1012. The multiple battery cells 1012 can be connected in series, parallel, or in a mixed configuration via a busbar component 700. A mixed configuration means that the multiple battery cells 1012 are connected in both series and parallel configurations. In one embodiment, the battery module 101 can be formed by bundling multiple battery cells 1012 together with cable ties. The battery cells 1012 may include, but are not limited to, lithium-ion cells 1012, sodium-ion cells 1012, sodium-lithium-ion cells 1012, lithium metal cells 1012, sodium metal cells 1012, lithium-sulfur cells 1012, magnesium-ion cells 1012, nickel-metal hydride cells 1012, nickel-cadmium cells 1012, lead-acid cells 1012, etc., and this embodiment of the invention is not limited to these types.

[0046] Inverter 501 is used to convert the direct current (DC) output from battery module 101 into alternating current (AC) to supply power to AC loads or the power grid.

[0047] The battery protection board is used to provide overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection and temperature protection for the battery module 101, effectively preventing the battery cell 1012 from being damaged due to abnormal operating conditions, thereby improving the safety performance and service life of the energy storage system.

[0048] The monitoring circuit board is used to monitor the operating status of the energy storage power supply 1000 in real time, including parameters such as voltage, current, temperature, SOC (state of charge), and SOH (state of health), and transmits the monitoring data to the battery management module 40.

[0049] The temperature module 10 is used to monitor the temperature of the electrical components 100 in the battery module 101 and to control the opening and closing of the valve 302. Optionally, the temperature module 10 includes a temperature sensor and a signal processing circuit. The temperature sensor can monitor the temperature of each electrical component 100 in real time and transmit the data to the signal processing circuit. When the temperature of the electrical component 100 is greater than or equal to the melting temperature of the temperature sensing wire 201, the signal processing circuit controls the valve 302 of the electrical component 100 with a temperature greater than or equal to the melting temperature to open within a set range, so that the flame-retardant material sprayed by the ejection module 202 flows from the outlet of the corresponding flow channel 301 to the electrical component 100.

[0050] The fire suppression module 200 is used to automatically release flame-retardant material when there is a risk of thermal runaway in the energy storage power supply 1000, thereby effectively suppressing further temperature rise and spread. The fire suppression module 200 includes a temperature sensing wire 201 and an ejection module 202. The temperature sensing wire 201 may include a metal wire or a thermally sensitive wire. When the temperature around the temperature sensing wire 201 exceeds the melting point of the temperature sensing wire 201, the temperature sensing wire 201 melts due to the high temperature. At the same time, the temperature is transferred to the ejection module 202 to trigger the ejection module 202 to eject flame-retardant material into the energy storage power supply 1000 through the flow channel 301.

[0051] The flow channel assembly 300 is used to guide the flame-retardant material released by the injection module 202. The flow channel assembly 300 includes a flow channel 301 and a valve 302. The flow channel 301 is a channel structure for conveying the flame-retardant material. The inlet of the flow channel 301 is connected to the injection module 202, and the outlet of the flow channel 301 is arranged towards the electrical component 100, thus forming a spray path. The valve 302 is used to open and close the outlet of the flow channel 301. The valve 302 can be opened according to the control command of the temperature module 10 when the temperature of the electrical component 100 is greater than or equal to the melting temperature of the temperature sensing wire 201, so that the flame-retardant material flows only towards the vicinity of the thermally runaway electrical component 100, thereby improving cooling efficiency and reducing flame-retardant waste.

[0052] The outlet of flow channel 301 is disposed toward electrical component 100. In one embodiment, flow channel 301 includes a plurality of outlets, one outlet being disposed toward at least one electrical component 100. In another embodiment, flow channel 301 includes a plurality of outlets, at least one outlet being disposed toward one electrical component 100, that is, one electrical component 100 corresponds to at least one outlet.

[0053] Valve 302 is used to control the opening and closing of the outlet of flow channel 301. In one embodiment, flow channel 301 includes multiple outlets, and correspondingly, one valve 302 corresponds to at least one outlet. Valve 302 is used to control the opening and closing of the corresponding outlet of flow channel 301.

[0054] It should be noted that the thermal runaway electrical component 100 refers to the electrical component 100 whose current temperature is significantly higher than its normal operating temperature. The temperature module 10 is used to collect the temperature of the electrical component 100. When the temperature module 10 detects that the temperature of the electrical component 100 is greater than or equal to the melting temperature of the temperature sensing wire 201, it indicates that the electrical component 100 may have entered a thermal runaway state. At this time, the valve 302, which controls the electrical component 100 within a set range, is opened, allowing the flame-retardant material sprayed by the ejection module 202 to flow from the outlet of the corresponding flow channel 301 to the vicinity of the electrical component 100.

[0055] It should be noted that the setting range can be determined based on factors such as the arrangement order, spatial relationship, or heat diffusion path of the electrical components 100 in the battery module 101. In one embodiment, the battery module 101 includes electrical components 100a, 100b, 100c, and 100d arranged in a linear order. When the temperature of electrical component 100a is greater than or equal to the melting temperature of the temperature sensing wire 201, the valve 302 of electrical components 100a and 100b is opened; when the temperature of electrical component 100b is greater than or equal to the melting temperature of the temperature sensing wire 201, the valve 302 of electrical components 100a, 100b, and 100c is opened; when the temperature of electrical component 100d is greater than or equal to the melting temperature of the temperature sensing wire 201, the valve 302 of electrical components 100c and 100d is opened.

[0056] It should be noted that the melting temperature of the temperature sensing wire 201 is related to its material. This can be determined in advance through experimental testing or by consulting tables. When the temperature sensing wire 201 melts, the temperature is transferred to the ejection module 202, triggering it to eject flame-retardant material into the energy storage power supply 1000 through the flow channel 301. The triggering temperature of the ejection module 202 is not greater than the melting temperature of the temperature sensing wire 201, to ensure that the ejection module 202 can be triggered when the temperature sensing wire 201 melts. The triggering temperature of the ejection module 202 is related to the properties of the flame-retardant material.

[0057] In some implementations, please refer to Figure 8 and Figure 9 The electrical component 100 includes a battery module 101, and a temperature sensing wire 201 is disposed on the battery module 101.

[0058] The above embodiments can improve the accuracy and reliability of the response of the ejection module 202.

[0059] Specifically, to more directly and quickly sense temperature changes in the battery module 101, a temperature sensing wire 201 can be installed on the battery module 101. When thermal runaway occurs in the battery module 101, its surface temperature will rise rapidly. The temperature sensing wire 201 can be placed close to the surface of the battery module 101, thereby quickly sensing the temperature anomaly and causing it to melt, promptly triggering the ejection module 202 to eject flame-retardant material. At the same time, placing the temperature sensing wire 201 on the battery module 101 can, to some extent, avoid triggering delays or false triggering caused by the temperature sensing wire 201 being far from the heat source, improving the accuracy and reliability of the ejection module 202's response.

[0060] Optionally, in one embodiment, the temperature sensing wire 201 is disposed on at least one side surface of the battery module 101. In one embodiment, the temperature sensing wire 201 is disposed around the battery module 101 in the circumferential direction. In one embodiment, please refer to... Figure 8 and Figure 9 The battery module 101 includes multiple battery cells 1012 arranged in an array, and the temperature sensing wires 201 are arranged in an arc or U-shape. It should be noted that the energy storage power supply 1000 may include a main battery pack 500 and a power supply pack 600. Figure 8 and Figure 9 The setting method of the temperature sensing line 201 of the main battery pack 500 is shown. The setting method of the temperature sensing line 201 of the power pack can be the same as or different from that of the main battery pack 500.

[0061] In some implementations, please refer to Figure 6 and Figure 12 The electrical component 100 includes a battery module 101, which includes a bracket 1011 and a battery cell 1012. The bracket 1011 has a through hole 1013. The battery cell 1012 includes a body 1014 and an electrode 1015. The electrode 1015 is disposed on at least one end face of the body 1014. The bracket 1011 is fixedly connected to the body 1014. The electrode 1015 passes through the through hole 1013. The temperature module 10 includes a temperature sensor, which is disposed on the side of the bracket 1011 away from the body 1014 and close to the through hole 1013.

[0062] In the above embodiments, the temperature sensor is located on the side of the bracket 1011 away from the main body 1014 and close to the through hole 1013, which can improve the sensitivity and accuracy of the temperature module 10, facilitate the rapid identification of temperature changes in the cell 1012, and thus improve the response efficiency of the energy storage power supply 1000 to thermal runaway.

[0063] Specifically, the battery cell 1012 includes a body 1014 and electrodes 1015, with the electrodes 1015 disposed on at least one end face of the body 1014. The electrodes 1015 include a first electrode 1015 and a second electrode 1015 with opposite polarities. In one embodiment, the first electrode 1015 and the second electrode 1015 are disposed on the same end face of the body 1014. In another embodiment, the first electrode 1015 and the second electrode 1015 are respectively disposed on opposite end faces of the body 1014.

[0064] The bracket 1011 can be fixedly connected to the body 1014 of the battery cell 1012 for positioning, supporting and fixing the battery cell 1012. The bracket 1011 is provided with a through hole 1013, through which the electrode 1015 passes. The busbar component 700 is provided on the side of the bracket 1011 away from the body 1014 and is electrically connected to the electrode 1015 to realize the electrical connection between the electrodes 1015 of multiple battery cells 1012.

[0065] The temperature module 10 includes a temperature sensor for real-time monitoring of the temperature of the battery cell 1012. The temperature sensor is located on the side of the bracket 1011 opposite to the main body 1014 and near the through hole 1013. This allows the temperature sensor to be closer to the electrodes 1015 of the battery cell 1012, i.e., closer to the parts of the battery cell 1012 prone to thermal runaway, thus improving the response speed and monitoring accuracy of the temperature module 10.

[0066] In some implementations, please refer to Figures 3 to 7 The outlet of flow channel 301 is oriented toward through hole 1013.

[0067] In the above embodiment, the outlet of the flow channel 301 is arranged towards the through hole 1013, which allows the flame retardant material to act directly on the electrode 1015 area of ​​the thermal runaway cell 1012, which is beneficial to quickly suppress the spread of temperature and reduce the waste of flame retardant material.

[0068] Specifically, the flow channel 301 includes multiple outlets. Optionally, one outlet is disposed toward at least one through hole 1013; or at least one outlet is disposed toward one through hole 1013, that is, one through hole 1013 corresponds to at least one outlet.

[0069] It is understandable that the outlet of the flow channel 301 is set towards the through hole 1013, that is, the outlet of the flow channel 301 is set towards the electrode 1015 of the battery cell 1012. When the spraying module 202 sprays out flame retardant material, the sprayed flame retardant material can directly act on the area near the electrode 1015 through the corresponding outlet of the flow channel 301.

[0070] In some implementations, please refer to Figure 3The flow channel 301 includes a plurality of first flow channels 3013. The inlet of the first flow channel 3013 is connected to the ejection module 202. The outlet of each first flow channel 3013 is arranged toward at least one electrical component 100. Each first flow channel 3013 is provided with a valve 302.

[0071] In the above embodiment, the flow channel 301 includes a plurality of first flow channels 3013. The inlet of the first flow channel 3013 is connected to the injection module 202. After the flame retardant material is ejected from the injection module 202, it directly enters each of the first flow channels 3013, which can shorten the injection path and improve efficiency.

[0072] Specifically, the inlets of multiple first diversion channels 3013 are connected to the ejection module 202, allowing the flame-retardant material to enter the corresponding first diversion channel 3013 from its inlet when the ejection module 202 ejects the flame-retardant material. Each first diversion channel 3013 is equipped with a valve 302, which can be used to open and close the outlet of the first diversion channel 3013. When the outlet of the first diversion channel 3013 is open, the flame-retardant material can be ejected from the outlet of the first diversion channel 3013, thereby flowing towards the vicinity of the thermally runaway electrical component 100.

[0073] In one embodiment, a first diversion channel 3013 includes a plurality of outlets, one outlet corresponding to at least one electrical component 100; or one electrical component 100 corresponding to at least one outlet.

[0074] Optionally, valve 302 may be located at the inlet, outlet, or intermediate position of the first diversion channel 3013, and this utility model does not impose specific limitations on this.

[0075] In some implementations, please refer to Figure 4 and Figure 5 The flow channel 301 includes a main flow channel 3011 and a plurality of second flow channels 3012 that are interconnected. The inlet of the main flow channel 3011 is connected to the ejection module 202. The outlet of each second flow channel 3012 is disposed toward at least one electrical component 100. Each second flow channel 3012 is provided with a valve 302.

[0076] In the above embodiments, the flow channel 301 includes a main flow channel 3011 and multiple second branch flow channels 3012 that are interconnected, which is beneficial to distribute flame retardant materials to multiple electrical components 100 as needed, so that the entire battery module 101 can achieve precise cooling or fire extinguishing operations in different areas, thereby improving response flexibility and coverage.

[0077] Specifically, the flow channel 301 includes a main flow channel 3011 and multiple second branch flow channels 3012, which are interconnected. The inlet of the main flow channel 3011 is connected to the injection module 202, allowing the flame retardant to enter the main flow channel 3011 from its inlet and then flow into the connected second branch flow channels 3012 when the injection module 202 ejects the flame retardant. Each second branch flow channel 3012 is equipped with a valve 302 for opening and closing its outlet. When the outlet of a second branch flow channel 3012 is open, the flame retardant can be ejected from the corresponding outlet and flow towards the vicinity of the thermally runaway electrical component 100.

[0078] In one embodiment, a second diversion channel 3012 includes a plurality of outlets, one outlet corresponding to at least one electrical component 100; or one electrical component 100 corresponding to at least one outlet.

[0079] Optionally, valve 302 may be located at the inlet, outlet, or intermediate position of the second diversion channel 3012; this utility model does not impose specific limitations on this.

[0080] In some implementations, please refer to Figure 4 Multiple second diversion channels 3012 are located on both sides opposite to the main channel 3011.

[0081] In the above embodiment, multiple second diversion channels 3012 are located on both sides opposite to the main channel 3011, so that the flame retardant material can flow out from both sides opposite to the main channel 3011, thereby increasing the coverage of the ejection module 202 while reducing the space occupied by the channel assembly 300.

[0082] Specifically, on both sides of the main channel 3011, multiple second diversion channels 3012 are arranged symmetrically or alternately, so that the flame retardant material can be diverted from both sides of the main channel 3011 at the same time, thereby forming a multi-directional and multi-point injection path.

[0083] Optionally, the main flow channel 3011 and the second branch flow channel 3012 can adopt an integral molding structure, which can improve the airtightness and mechanical strength of the flow channel 301 and avoid the risk of leakage caused by multi-segment connection to a certain extent.

[0084] Optionally, the connection area between the main flow channel 3011 and the second branch flow channel 3012 may include a chamfered structure to effectively reduce energy loss and turbulence generated by the flame retardant material during flow.

[0085] In some implementations, please refer to Figures 3 to 5 The flow channel assembly 300 includes a pipe 20, and the electrical component 100 includes a battery module 101. The pipe 20 and the battery module 101 are arranged opposite to each other, and the flow channel 301 is provided inside the pipe 20.

[0086] In the above embodiments, the flow of flame-retardant material is achieved through the pipe 20, which facilitates installation and maintenance, and the production process is simple and low-cost.

[0087] Specifically, the pipe 20 can be a one-piece molded or segmented shell structure. The pipe 20 can be set at the top, side and bottom of the battery module 101, and the specific position can be adjusted according to the spatial arrangement of the battery module and the energy storage power supply 1000 to form a spray path toward the electrical component 100.

[0088] In one implementation, please refer to Figure 4 and Figure 5 The pipeline 20 includes a main pipeline 21 and multiple second branch pipelines 22 connected to each other. The main pipeline 21 is connected to the injection module 202. The main pipeline 21 is provided with a main flow channel 3011, and the second branch pipelines 22 are provided with second branch channels 3012. When the injection module 202 injects flame-retardant material, the flame-retardant material flows through the main pipeline 21 to the multiple second branch pipelines 22. Each second branch pipeline 22 is provided with a valve 302, which can be used to open and close the outlet of the second branch channel 3012. When the outlet of the second branch pipeline 22 is open, the flame-retardant material can be injected from the outlet of the corresponding second branch pipeline 22, thereby flowing towards the vicinity of the thermally runaway electrical component 100.

[0089] In one implementation, please refer to Figure 3 The pipeline 20 includes multiple first branch pipelines 23, each connected to the ejection module 202. Each first branch pipeline 23 has a first diversion channel 3013. When the ejection module 202 ejects flame-retardant material, the material flows directly to each of the first branch pipelines 23. Each first branch pipeline 23 is equipped with a valve 302, which can be used to open and close the outlet of the first diversion channel 3013. When the outlet of a first branch pipeline 23 is open, the flame-retardant material can be ejected from the corresponding outlet and flow towards the vicinity of the thermally runaway electrical component 100.

[0090] In some implementations, please refer to Figures 3 to 5 The energy storage power supply includes a housing cavity 400, and the ejection module 202 is disposed inside the housing cavity 400. The housing cavity 400 has an opening, and the pipe 20 is connected to the opening.

[0091] In the above embodiments, after the flame retardant material is sprayed out, it is buffered in the receiving cavity 400 before flowing into the main pipe 21, which can reduce the impact force at the moment of spraying and reduce the risk of the main pipe 21 being ruptured or falling off due to impact.

[0092] Specifically, after the ejection module 202 is triggered, the flame-retardant material is first released into the containment cavity 400, then flows out through the opening on the containment cavity 400, and enters the pipe 20 connected to the opening.

[0093] Since the flame-retardant material does not directly enter the pipe 20, but diffuses and changes its flow direction in the containment cavity 400 first, it can effectively reduce the impact on the pipe 20 and avoid the risk of structural rupture and loosening of the connection caused by instantaneous high pressure to a certain extent.

[0094] In one embodiment, the conduit 20 includes a main conduit 21 and a plurality of second branch conduits 22 interconnected with each other. The main conduit 21 is connected to an opening of a receiving cavity 400. In one embodiment, the receiving cavity 400 includes a plurality of openings. The conduit 20 includes a plurality of first branch conduits 23, each first branch conduit 23 being connected to an opening of a receiving cavity 400.

[0095] Optionally, the opening of the receiving cavity 400 can be located at the bottom, side or top of the receiving cavity 400, and the specific location can be determined according to the layout of the pipe 20.

[0096] In some embodiments, the energy storage power supply 1000 includes a battery management module 40, which is connected to the ejection module 202, the temperature module 10, and the valve 302. The battery management module 40 receives the temperature of the electrical component 100 output by the temperature module 10. When the temperature of the electrical component 100 is greater than or equal to a set temperature, the battery management module 40 controls the ejection module 202 to eject flame-retardant material and controls the valve 302 of the electrical component 100 with a temperature greater than or equal to the set temperature to open within a set range, so that the flame-retardant material ejected by the ejection module 202 flows from the outlet of the corresponding flow channel 301 to the electrical component 100.

[0097] In the above embodiments, the battery management module 40 can realize intelligent identification and rapid response to the thermal runaway electrical component 100, which to a certain extent ensures that flame-retardant substances are sprayed in time and the corresponding valves 302 are opened when the temperature is abnormal, thereby improving the safety performance of the energy storage power supply 1000.

[0098] Specifically, the Battery Management System (BMS) 40 is an electronic control unit used to monitor, control, and protect the operating status of the battery module 101.

[0099] The battery management module 40 can be connected to the temperature module 10, valve 302, and ejection module 202 via wired or wireless means. The temperature module 10 can monitor the temperature of the electrical component 100 in real time and send the temperature of the electrical component 100 to the battery management module 40.

[0100] When the temperature of the electrical component 100 is greater than or equal to the set temperature, a first control signal is sent to the spray module 202 to control the spray module 202 to spray flame-retardant material; and a second control signal is sent to the valve 302 of the electrical component 100 within the set temperature range to control the corresponding valve 302 to open, so that the flame-retardant material sprayed by the spray module 202 flows from the outlet of the corresponding flow channel 301 to the electrical component 100.

[0101] It should be noted that the set temperature can be flexibly configured based on factors such as the type of electrical component 100, the working environment, and safety redundancy strategies in the actual application scenario. Optionally, the set temperature can be less than or equal to the melting temperature of the temperature sensing wire 201, allowing the battery management module 40 to detect temperature anomalies in advance and actively control the triggering of the ejection module 202 and the opening of the valve 302 before the temperature sensing wire 201 melts, thereby achieving early warning intervention against thermal runaway and improving the response speed and safety of the energy storage power supply 1000.

[0102] Optionally, please combine Figure 2 The energy storage power supply 1000 includes a partition plate 50. The battery management module 40 is located between the battery module 101 and the inverter 501, and is separated from the inverter 501 by the partition plate 50.

[0103] In some implementations, please refer to Figure 10 and Figure 11 The battery management module 40 is communicatively connected to the ejection module 202. When the temperature sensing wire 201 melts, the ejection module 202 sends a thermal runaway signal to the battery management module 40, which then issues an alarm based on the thermal runaway signal.

[0104] In the above implementation method, users can be reminded that the energy storage power supply 1000 is currently at risk of thermal runaway.

[0105] Specifically, the ejection module 202 includes a signal line 800, through which it can communicate with the battery management module 40. The temperature sensing wire 201, made of a fusible metal wire, remains conductive at room temperature and serves as a dry contact input to the ejection module 202. When the ambient temperature of the temperature sensing wire 201 reaches its melting point, the metal wire physically melts, causing the circuit to break. The ejection module 202 can detect when the temperature sensing wire 201 is disconnected by monitoring the change in the on / off state of this dry contact and sends a thermal runaway signal to the battery management module 40 when the temperature sensing wire 201 is disconnected. The thermal runaway signal is used to indicate that the ejection module 202 has been triggered.

[0106] Upon receiving the thermal runaway signal from the fire alarm module 200, the battery management module 40 immediately issues an alarm. Optionally, in one embodiment, the energy storage power supply 1000 includes a buzzer, warning light, and display screen, and the battery management module 40 can control the buzzer, warning light, and display screen to emit sound or flash. In one embodiment, the energy storage power supply 1000 includes a communication module that can communicate with a terminal device, and the battery management module 40 can control the communication module to send an alarm signal to the terminal device. The terminal device includes, but is not limited to, mobile phones, tablets, personal computers, servers, wearable smart devices (such as smart helmets, smart glasses, smart bracelets, and smartwatches), etc.

[0107] In one embodiment, the ejection module 202 is provided with a nozzle 60. The nozzle 60 can be sealed by a sealing membrane when the ejection module 202 is not triggered.

[0108] Optionally, the ejection module 202 is provided with an interface 30, through which the signal line 800 can be connected to the ejection module 202.

[0109] Optionally, the signal line 800 is provided with a first protective layer to prevent physical damage to the signal line 800 during assembly, transportation, etc., which could affect the normal operation of the battery management module 40 and the emission module 202. Optionally, the first protective layer may be a fiberglass tube.

[0110] Optionally, the temperature sensing wire 201 is provided with a second protective layer to prevent physical damage to the temperature sensing wire 201 during assembly, transportation, etc., so as to affect the normal operation of the battery management module 40 and the emission module 202. Optionally, the second protective layer may be a fiberglass tube.

[0111] In some embodiments, the ejection module 202 includes a thermal aerosol.

[0112] In the above embodiments, thermal aerosol can rapidly reduce the temperature inside the battery module 101 and suppress combustion and explosion caused by thermal runaway.

[0113] Specifically, in one embodiment, the ejection module 202 includes an electric initiator connected to the battery management module 40. The battery management module 40 can control the electric initiator to ignite the solid thermal aerosol inside the ejection module 202 and melt the sealing film, 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.

[0114] In one embodiment, when the temperature sensing wire 201 melts, the temperature is transferred to the ejection module 202 to ignite the solid thermal aerosol inside the ejection module 202 and melt the sealing film, 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.

[0115] 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.

[0116] 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.

[0117] It is understood that in this embodiment of the utility model, the ejection module 202 stores a thermal aerosol that is solid at room temperature, occupies a small volume, and can quickly generate a non-toxic, non-corrosive, and non-ozone-depleting flame-retardant substance when the energy storage power supply 1000 experiences thermal runaway.

[0118] In some implementations, please refer to Figure 1 and Figure 2 The electrical component 100 includes a battery module 101, and the energy storage power supply 1000 includes a main battery pack 500 and / or a power pack 600. The main battery pack 500 includes a first battery management module 40 and an inverter 501. The first battery management module 40 is electrically connected to the inverter 501 and the battery module 101. The power pack 600 includes a second battery management module 40, which is used for communication connection with the first battery management module 40.

[0119] In the above implementation method, the capacity can be flexibly expanded according to the needs of different scenarios.

[0120] Specifically, the main battery pack 500 is the primary battery cell in the energy storage power supply 1000. The power pack 600 is an additional battery cell used to expand the capacity of the main battery pack 500. In some embodiments, please refer to... Figure 1 The energy storage power supply 1000 includes a main battery pack 500 and a power pack 600.

[0121] The main battery pack 500 may include a first battery management module 40, an inverter 501, and a first battery module 101a. The power pack 600 may include a second battery management module 40 and a second battery module 101b. The first battery module 101a is electrically connected to the first battery management module 40 and the inverter 501. The second battery management module 40 is electrically connected to the second battery module 101b; the second battery management module 40 is also communicatively connected to the first battery management module 40.

[0122] Therefore, the first battery management module 40 can monitor the voltage, temperature, current, and other electrical parameters of each cell 1012 in the main battery pack 500, and the second battery management module 40 can monitor the voltage, temperature, current, and other electrical parameters of each cell 1012 in the power pack 600. These parameters are then transmitted to the first battery management module 40. During charging and discharging, the first battery management module 40 can output corresponding control commands based on the detected electrical parameters to ensure the safe and stable operation of the entire energy storage power supply 1000. For example, the first battery management module 40 can convert the DC power from the first battery module 101a and the second battery module 101b into the AC power required for external output via the inverter 501. Therefore, the power pack 600 can be flexibly used for capacity expansion according to the needs of different scenarios.

[0123] It is understandable that the arrangement of the temperature sensing wires inside the power pack 600 can be the same as or different from the arrangement of the temperature sensing wires inside the main battery pack 500.

[0124] 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 utility model. 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.

[0125] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more steps for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0126] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, combinations, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An energy storage power source, characterized in that, The energy storage power supply includes electrical components, a temperature module, a fire suppression module, and a flow channel assembly. The fire suppression module includes a temperature sensing wire and a spray module. The temperature sensing wire is used to melt and burn out when the electrical components experience thermal runaway. The spray module is connected to the temperature sensing wire and is used to spray out flame-retardant material when the temperature sensing wire melts out. The flow channel assembly includes a flow channel and a valve. The inlet of the flow channel is connected to the spray module, and the outlet of the flow channel is oriented towards the electrical components. The valve is used to control the opening and closing of the outlet of the flow channel. The temperature module is used to collect the temperature of the electrical component, and when the temperature of the electrical component is greater than or equal to the melting temperature of the temperature sensing wire, it controls the valve of the electrical component with a temperature greater than or equal to the melting temperature to open within a set range, so that the flame-retardant material sprayed by the ejection module flows from the outlet of the corresponding flow channel to the electrical component.

2. The energy storage power supply according to claim 1, wherein the electrical component includes a battery module, and the temperature sensing wire is disposed on the battery module.

3. The energy storage power supply according to claim 1, characterized in that, The electrical components include a battery module, which includes a bracket and a battery cell. The bracket has a through hole, and the battery cell includes a body and an electrode. The electrode is disposed on at least one end face of the body. The bracket is fixedly connected to the body, and the electrode passes through the through hole. The temperature module includes a temperature sensor, which is disposed on the side of the bracket away from the body and close to the through hole.

4. The energy storage power supply according to claim 3, characterized in that, The outlet of the flow channel is oriented toward the through hole.

5. The energy storage power supply according to claim 1, characterized in that, The flow channel includes a plurality of first branch channels, the inlet of each first branch channel is connected to the ejection module, the outlet of each first branch channel is disposed toward at least one of the electrical components, and each first branch channel is provided with the valve.

6. The energy storage power supply according to claim 1, characterized in that, The flow channel includes a main flow channel and a plurality of second branch flow channels that are interconnected. The inlet of the main flow channel is connected to the ejection module. The outlet of each second branch flow channel is disposed toward at least one of the electrical components. Each second branch flow channel is provided with the valve.

7. The energy storage power supply according to claim 6, characterized in that, Multiple second diversion channels are located on both sides opposite to the main channel.

8. The energy storage power supply according to claim 5 or 6, characterized in that, The flow channel assembly includes a pipe, and the electrical component includes a battery module. The pipe and the battery module are arranged opposite to each other, and the pipe has a flow channel inside.

9. The energy storage power supply according to claim 8, characterized in that, The energy storage power source includes a housing cavity, the ejection module is disposed in the housing cavity, the housing cavity has an opening, and the pipe is connected to the opening.

10. The energy storage power supply according to claim 1, characterized in that, The energy storage power supply includes a battery management module, which is connected to the ejection module, the temperature module, and the valve. The battery management module receives the temperature of the electrical component output by the temperature module. When the temperature of the electrical component is greater than or equal to a set temperature, the battery management module controls the ejection module to eject the flame-retardant substance and controls the valve of the electrical component with a temperature greater than or equal to the set temperature to open within the set range, so that the flame-retardant substance ejected by the ejection module flows from the outlet of the corresponding flow channel to the electrical component.

11. The energy storage power supply according to claim 10, characterized in that, The battery management module is communicatively connected to the ejection module. When the temperature sensing wire melts, the ejection module sends a thermal runaway signal to the battery management module, and the battery management module issues an alarm based on the thermal runaway signal.

12. The energy storage power supply according to claim 1, characterized in that, The ejection module includes thermal aerosol.

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

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