Energy storage device, energy storage system and charging network

Abstract

The embodiment of the utility model provides an energy storage device, an energy storage system and a charging network. The energy storage device comprises a bin body; the energy storage unit is arranged in the bin body; the detector is arranged in the bin body and comprises at least two of a smoke detection element, a temperature detection element, a hydrogen detection element, a carbon monoxide detection element and a volatile organic compound detection element which are integrally arranged; and the fire-fighting assembly is arranged in the bin body and responds to the detection condition of the detector to provide a fire-fighting medium for the energy storage unit. The detector integrates a plurality of detection elements, the size is relatively reduced, the detector has a plurality of detection functions, the environmental condition can be evaluated more comprehensively, the detection precision and reliability are improved, the occurrence of false alarms is reduced, early warning of the dangerous substances can be realized, and the safety is enhanced; and the detector can be linked with the fire-fighting assembly, so that the fire-fighting assembly can quickly and accurately respond and take measures to protect the safety of personnel and facilities when a fire disaster occurs.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage device, energy storage system and charging network. Background Technology

[0002] In some related technologies, energy storage devices may experience thermal runaway during charging and discharging, which could lead to fires. Therefore, it is crucial to detect thermal runaway in a timely manner and take appropriate measures. Utility Model Content

[0003] Some embodiments of this application propose an energy storage device, energy storage system, and charging network to alleviate the problem of not being able to detect thermal runaway of the energy storage device in a timely manner and take corresponding measures.

[0004] Some embodiments of this application provide an energy storage device, including: a housing; an energy storage unit disposed within the housing; a detector disposed within the housing, the detector including at least two elements selected from an integrated smoke detection element, a temperature detection element, a hydrogen detection element, a carbon monoxide detection element, and a volatile organic compound detection element; and a fire-fighting component disposed within the housing, which provides a fire-fighting medium to the energy storage unit in response to the detection status of the detector.

[0005] In the above embodiments, the detector integrates multiple detection elements into one unit, resulting in a relatively smaller size. It also has multiple detection functions, enabling it to detect at least two of smoke, temperature, hydrogen, carbon monoxide, and volatile organic compounds. By simultaneously detecting different parameters, it can more comprehensively assess environmental conditions, improve detection accuracy and reliability, reduce false alarms, and provide early warnings of these hazardous substances, thereby enhancing safety. Furthermore, the detector can be linked with fire-fighting components so that in the event of a fire, the fire-fighting components can respond quickly and accurately, taking measures to protect the safety of personnel and facilities.

[0006] In some embodiments, the detector is connected to the energy storage unit via a first conduit, and the detector includes a power element configured to provide power to deliver fluid from the energy storage unit to the detector via the first conduit.

[0007] In the above embodiments, the detector actively directs the fluid inside the energy storage unit to the detector, rather than passively waiting for smoke or combustible gas to spread to the detection location before it can be detected. Therefore, this active detection method of the fluid inside the energy storage unit is highly timely and can detect the risk of thermal runaway in the energy storage unit in advance, and quickly provide fire-fighting medium to the energy storage unit through the fire-fighting components to reduce the risk and improve safety.

[0008] In some embodiments, the energy storage device further includes a second pipeline and a switching valve, the second pipeline connecting the fire-fighting component and the energy storage unit, and the switching valve being located in the second pipeline and opening in response to a signal emitted by the detector.

[0009] In the above embodiment, the switching valve is electrically connected to the detector. The switching valve is normally closed. After receiving a signal from the detector indicating thermal runaway, it opens, connecting the second pipeline to the fire-fighting component and the energy storage unit. The fire-fighting medium provided by the fire-fighting component is sent to the energy storage unit through the second pipeline, improving the accuracy of fire extinguishing.

[0010] In some embodiments, the energy storage device further includes a first pipeline and a second pipeline, the first pipeline connecting the detector and the energy storage unit, and the second pipeline connecting the fire-fighting component and the first pipeline.

[0011] In the above embodiment, the second pipeline delivers the fire-fighting medium provided by the fire-fighting component to the first pipeline. The first pipeline is connected to the interior of the energy storage unit. The fire-fighting medium can be delivered to the interior of the energy storage unit through the first pipeline. Therefore, the fire-fighting component and the detector share a section of the first pipeline, which simplifies the pipeline and facilitates construction.

[0012] In some embodiments, the energy storage device includes an energy storage cluster module, the energy storage cluster module includes at least two energy storage units, and the detector is configured correspondingly to the energy storage cluster module.

[0013] In the above embodiment, the fire suppression component is connected to each energy storage unit in the energy storage cluster module via piping. The detector is connected to each energy storage unit in the energy storage cluster module via a first piping.

[0014] In some embodiments, the energy storage device further includes a first pipeline, the first pipeline including a first main pipe and at least two first branch pipes, the first main pipe being connected to the detector, and the at least two first branch pipes being connected to the first main pipe and respectively corresponding to at least two of the energy storage units.

[0015] In the above embodiment, the detector is connected to the first main pipe, and the first main pipe is connected to each energy storage unit in the energy storage cluster module through each first branch pipe. One detector is responsible for detecting the internal state of all energy storage units in one energy storage cluster module, which reduces costs and saves space.

[0016] In some embodiments, the energy storage device further includes a second conduit connecting the fire-fighting component to the first main conduit.

[0017] In the above embodiment, the fire-fighting component is connected to the first main pipe of the first pipeline through the second pipeline. The fire-fighting medium provided by the fire-fighting component is sent to the energy storage unit through the second pipeline, a section of the first main pipe and the first branch pipe. The fire-fighting component and the detector share a section of the first main pipe and the first branch pipe, which simplifies the pipeline and saves costs.

[0018] In some embodiments, the energy storage device includes at least two of the energy storage cluster modules and at least two of the detectors, each of the energy storage cluster modules being connected to one of the detectors via a first conduit.

[0019] In the above embodiments, each energy storage cluster module is equipped with a detector to detect the status of all energy storage units in an energy storage cluster module. All detectors are electrically connected to the fire suppression component. In the event of thermal runaway in any energy storage cluster module, the fire suppression component can provide fire suppression medium to the corresponding energy storage cluster module. This method of detecting by cluster and uniformly providing fire suppression medium by the fire suppression component simplifies the structure and reduces costs.

[0020] In some embodiments, the energy storage device further includes a second pipeline, which includes a second main pipe and at least two second branch pipes. The second main pipe is connected to the fire-fighting component, and the at least two second branch pipes are connected to the second main pipe and are respectively connected to the first pipelines corresponding to at least two of the detectors.

[0021] In the above embodiments, since the energy storage device has multiple energy storage cluster modules, and each energy storage cluster module shares the same fire-fighting component, the second pipeline is connected to the fire-fighting component through the second main pipe, and is connected to each energy storage cluster module through each second branch pipe; and each second branch pipe is connected to the first main pipe corresponding to at least two detectors one-to-one. Therefore, the fire-fighting component can share a section of the first main pipe and the first branch pipe with the detector corresponding to the energy storage cluster module, simplifying the pipeline, saving costs, and facilitating construction.

[0022] In some embodiments, the energy storage device further includes a switching valve, and each of the second branch pipes is provided with one of the switching valves.

[0023] In the above embodiment, each second branch pipe is connected to an energy storage cluster module, and each second branch pipe is equipped with a switching valve. The switching valve is electrically connected to the detector corresponding to the energy storage cluster module. When the detector detects thermal runaway in the energy storage cluster module, it sends a signal to the switching valve, which opens the valve, allowing the fire-fighting medium provided by the fire-fighting component to enter the energy storage cluster module, thereby improving the accuracy of fire extinguishing.

[0024] In some embodiments, the power unit is configured to operate continuously or periodically, and to cease operation if the detector determines that the energy storage unit has thermal runaway.

[0025] In the above embodiments, the power unit can operate continuously or be activated at fixed time intervals to draw fluid from the energy storage unit to the detector. The detector then detects the internal conditions of the energy storage unit to determine if there is a risk of thermal runaway. Furthermore, it can quickly provide fire suppression media to the energy storage unit through the fire suppression system, reducing the risk and improving safety. In the event of thermal runaway detected by the detector, the power unit stops operating, reducing the flow of fire suppression media to the detector and preventing damage to it.

[0026] Some embodiments of this application also provide an energy storage system, which includes a power conversion device and the energy storage device described above, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

[0027] The energy storage system provided in this application includes the energy storage device provided in the embodiments of this disclosure, and therefore has the beneficial effects of the energy storage device.

[0028] Some embodiments of this application also provide a charging network, which includes a charging pile and the above-described energy storage device or energy storage system, wherein the energy storage device is used to provide electrical energy to the charging pile.

[0029] The charging network provided in this application includes the energy storage device provided in this disclosure, and therefore has the beneficial effects of the energy storage device.

[0030] Based on the above technical solution, this application has at least the following beneficial effects:

[0031] In some embodiments, the detector integrates multiple detection elements into one unit, resulting in a relatively smaller size. It also has multiple detection functions, enabling it to detect at least two of smoke, temperature, hydrogen, carbon monoxide, and volatile organic compounds. By simultaneously detecting different parameters, it can more comprehensively assess environmental conditions, improve detection accuracy and reliability, reduce false alarms, and provide early warnings of these hazardous substances, thereby enhancing safety. Furthermore, the detector can be linked with fire suppression systems so that in the event of a fire, the fire suppression systems can respond quickly and accurately, taking measures to protect the safety of personnel and facilities. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0033] Figure 1 This is a three-dimensional structural schematic diagram of an energy storage device disclosed in some embodiments of this application;

[0034] Figure 2 This is an exploded structural diagram of a battery device disclosed in some embodiments of this application;

[0035] Figure 3 This is a schematic diagram of the internal structure of an energy storage device disclosed in some embodiments of this application;

[0036] Figure 4 This is a schematic diagram of an energy storage system disclosed in some embodiments of this application;

[0037] Figure 5 This is a schematic diagram of a charging network disclosed in some embodiments of this application.

[0038] The accompanying drawings are not drawn to scale.

[0039] Labeling Explanation: 1-Energy Storage Unit; 11-Battery Unit; 111-Box; 111a-First Box; 11b-Second Box; 112-Battery Cell; 2-Detector; 21-Power Component; 3-Fire Protection Component; 4-First Pipeline; 41-First Main Pipe; 42-First Branch Pipe; 5-Second Pipeline; 51-Second Main Pipe; 52-Second Branch Pipe; 6-Switch Valve; 7-Signal Line; 8-Power Line; 10-Energy Storage Cluster Module; 20-Box; 100-Energy Storage Device; 200-Power Conversion Device; 300-Power Generation Device; 400-Charging Pile; 500-Connector. Detailed Implementation

[0040] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0041] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are 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, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0042] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric motorcycles and electric cars, as well as electrical devices in various fields such as aerospace. With the continuous expansion of the application areas of power battery devices, the market demand is also constantly increasing.

[0044] The battery device disclosed in this application can be used as a power source for an electrical device or as an energy storage element for various energy storage devices.

[0045] refer to Figure 1 , Figure 1 This is a perspective structural diagram of an energy storage device 100 provided in some embodiments of this application. The energy storage device 100 provided in the embodiments of this application includes one or more energy storage cluster modules 10 to improve the voltage and capacity of the energy storage device 100. Each energy storage cluster module 10 may include multiple energy storage units 1, each energy storage unit 1 including a battery device 11. Multiple battery devices 11 are connected in series via a busbar to increase the voltage of the energy storage device 100. When the energy storage device 100 includes multiple energy storage cluster modules 10, the multiple energy storage cluster modules 10 are connected in parallel to increase the capacity of the energy storage device.

[0046] The energy storage device 100 can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device 100 can store electrical energy as needed and output it when appropriate. For example, the energy storage device 100 can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage system provided in this application embodiment can be any power system that requires the use of the energy storage device 100.

[0047] In some embodiments, the energy storage device 100 is an energy storage container or an energy storage cabinet.

[0048] In some embodiments, the energy storage device 100 may include a cabinet or enclosure, and one or more energy storage cluster modules 10, which are housed in the cabinet or enclosure.

[0049] In some embodiments, the energy storage device 100 may include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection module.

[0050] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device via piping to regulate the temperature of the individual battery cells.

[0051] As an example, the main control module can serve as the battery management unit of the energy storage cluster module 10, used to monitor and manage the energy storage cluster module 10. The main control module can monitor information such as current, voltage, power, or temperature of the energy storage cluster module 10. For example, it can control the charging and discharging current and voltage of the energy storage cluster module 10. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0052] As an example, the central control module can serve as the battery management unit of the energy storage device 100, used to monitor and manage the energy storage device 100. The central control module can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device 100. For example, it can control the charging and discharging current and voltage of the energy storage device 100. As an example, the central control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0053] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in the energy storage system.

[0054] As an example, the power distribution module can be used to distribute power to the modules in the energy storage device 100 that require electricity.

[0055] In some embodiments, the energy storage device 100 includes one or more energy storage cluster modules 10, and the energy storage cluster module 10 may include a plurality of energy storage units 1, and the energy storage unit 1 includes a battery device 11.

[0056] refer to Figure 2 , Figure 2This is an exploded structural diagram of a battery device 11 provided in some embodiments of this application. The battery device 11 includes a housing 111 and battery cells 112, with the battery cells 112 housed within the housing 111. The housing 111 includes a first housing 111a and a second housing 111b, which overlap each other, defining a space for accommodating the battery cells 112. The second housing 111b may be a hollow structure with one open end, while the first housing 111a may be a plate-like structure, covering the open side of the second housing 111b so that the first housing 111a and the second housing 111b together define the accommodating space. Alternatively, the first housing 111a and the second housing 111b may both be hollow structures with one open end, with the open side of the first housing 111a covering the open side of the second housing 111b. Of course, the box 111 formed by the first box 111a and the second box 111b can be of various shapes, such as a cylinder or a cuboid.

[0057] There can be multiple battery cells 112, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 112 are connected in both series and parallel. Multiple battery cells 112 can be connected in series, parallel, or in a mixed manner together, and then the whole assembly of multiple battery cells 112 is housed in the housing 111. Of course, the battery device 11 can also be composed of multiple battery cells 112 first connected in series, parallel, or in a mixed manner to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed manner to form a whole, which is also housed in the housing 111.

[0058] In some related technologies, energy storage devices may experience thermal runaway during charging and discharging, which could lead to fires. Therefore, it is crucial to detect thermal runaway in a timely manner and take appropriate measures.

[0059] Based on this, some embodiments of this application provide an energy storage device, an energy storage system, and a charging network to alleviate the problem of not being able to detect thermal runaway of the energy storage device in a timely manner and take corresponding measures.

[0060] refer to Figure 3 In some embodiments, the energy storage device 100 includes a housing 20, an energy storage unit 1, a detector 2, and a fire suppression component 3.

[0061] Energy storage unit 1 is located inside the storage unit 20.

[0062] The detector 2 is located inside the chamber 20. The detector 2 includes at least two of the following elements: a smoke detection element, a temperature detection element, a hydrogen detection element, a carbon monoxide detection element, and a volatile organic compound detection element.

[0063] The fire-fighting component 3 is located inside the chamber 20 and provides fire-fighting medium to the energy storage unit 1 in response to the detection status of the detector 2.

[0064] In some embodiments, the storage unit 20 includes a cabinet or a box.

[0065] In the above embodiment, the detector 2 is electrically connected to the fire suppression assembly 3. The fire suppression assembly 3 is located outside the energy storage unit 1 and provides a fire suppression medium to the energy storage unit 1 in response to the detector 2 detecting thermal runaway of the energy storage unit 1.

[0066] In the above embodiments, detector 2 integrates multiple detection elements into one unit, resulting in a relatively smaller size. It also has multiple detection functions, enabling it to detect at least two of smoke, temperature, hydrogen, carbon monoxide, and volatile organic compounds (VOCs). By simultaneously detecting different parameters, it can more comprehensively assess environmental conditions, improve detection accuracy and reliability, reduce false alarms, and provide early warnings of these hazardous substances, thereby enhancing safety. Furthermore, detector 2 can be linked with fire-fighting component 3 so that in the event of a fire, fire-fighting component 3 can respond quickly and accurately, taking measures to protect the safety of personnel and facilities.

[0067] In some embodiments, the detector 2 includes an integrated smoke detection element, a temperature detection element, a hydrogen detection element, a carbon monoxide detection element, and a volatile organic compound detection element.

[0068] In the above embodiments, the detector 2 can not only alarm by detecting smoke, but also by monitoring temperature, and even by detecting hydrogen, carbon monoxide and volatile organic compounds (VOCs), making it particularly suitable for early warning in critical areas such as thermal runaway of energy storage units.

[0069] In some embodiments, the fire suppression component 3 includes a fire suppression element and a control element. The control element is electrically connected to the detector 2 and the fire suppression element. When the detector 2 detects thermal runaway in the energy storage unit 1, it sends a signal to the control element, which then controls the fire suppression element to provide fire suppression medium to the energy storage unit 1.

[0070] In some embodiments, the detector 2 is connected to the energy storage unit 1 through the first pipeline 4. The detector 2 includes a power element 21, which is configured to provide power so that the fluid in the energy storage unit 1 is delivered to the detector 2 through the first pipeline 4.

[0071] In the above embodiments, the detector 2 is located outside the energy storage unit 1 and is connected to the interior of the energy storage unit 1 through the first pipeline 4. The detector 2 includes a power component 21, which provides power to the fluid in the energy storage unit 1 through the first pipeline 4. The detector 2 of this application actively causes the fluid in the energy storage unit 1 to flow to the detector 2, rather than passively waiting for smoke or combustible gas to spread to the detection location before detection. Therefore, the active detection method of the fluid in the energy storage unit 1 of this application has strong timeliness and can detect the risk of thermal runaway of the energy storage unit 1 in advance, and quickly provide fire-fighting medium to the energy storage unit 1 through the fire-fighting component 3 to reduce the risk and improve safety.

[0072] In some embodiments, the detector 2 includes a housing, a power unit 21 is disposed inside the housing, and an integrated detection element is also disposed inside the housing. The power unit 21 guides the fluid in the energy storage unit 1 to the housing of the detector 2. The detection element determines the internal state of the energy storage unit 1 by detecting the fluid entering the housing, which can reduce false alarms caused by environmental factors such as humidity and temperature changes, and improve the reliability and accuracy of the detector 2.

[0073] In some embodiments, the power component 21 includes a pump.

[0074] In the above embodiment, the detector 2 provides suction force through a pump, so that the fluid in the energy storage unit 1 is sent to the detector 2 through the first pipeline 4. This active suction detection method can capture possible thermal runaway gas more promptly, and the detector 2 can quickly detect the concentration and temperature of the fluid in real time, which significantly improves the response speed.

[0075] In some embodiments, the energy storage device 100 further includes a second pipeline 5 and a switching valve 6. The second pipeline 5 connects the fire-fighting assembly 3 and the energy storage unit 1. The switching valve 6 is located in the second pipeline 5 and opens in response to a signal emitted by the detector 2.

[0076] In the above embodiment, the switching valve 6 is electrically connected to the detector 2. The switching valve 6 is normally closed. After receiving the signal indicating thermal runaway from the detector 2, it opens, so that the second pipeline 5 connects the fire-fighting component 3 and the energy storage unit 1. The fire-fighting medium provided by the fire-fighting component 3 is sent to the energy storage unit 1 through the second pipeline 5, which improves the accuracy of fire extinguishing.

[0077] In some embodiments, the switching valve 6 includes a puncture valve.

[0078] In some embodiments, the energy storage device 100 further includes a first pipeline 4 and a second pipeline 5, the first pipeline 4 connecting the detector 2 and the energy storage unit 1, and the second pipeline 5 connecting the fire-fighting component 3 and the first pipeline 4.

[0079] In the above embodiment, the second pipeline 5 delivers the fire-fighting medium provided by the fire-fighting component 3 to the first pipeline 4. The first pipeline 4 is connected to the interior of the energy storage unit 1. The fire-fighting medium can be delivered to the interior of the energy storage unit 1 through the first pipeline 4. Therefore, the fire-fighting component 3 and the detector 2 share a section of the first pipeline 4, which simplifies the pipeline and makes construction convenient.

[0080] In some embodiments, the energy storage device 100 includes an energy storage cluster module 10, which includes at least two energy storage units 1, and a detector 2 is correspondingly disposed with the energy storage cluster module 10.

[0081] In the above embodiment, the fire suppression component 3 is connected to each energy storage unit 1 in the energy storage cluster module 10 via a conduit (second conduit 5, or second conduit 5 and first conduit 4). The detector 2 is connected to each energy storage unit 1 in the energy storage cluster module 10 via the first conduit 4.

[0082] In the above embodiment, all energy storage units 1 in the energy storage cluster module 10 share the same fire-fighting component 3 and a detector 2. The detector 2 draws fluid from all energy storage units 1 in the energy storage cluster module 10 to detect the internal state of each energy storage unit 1 in the energy storage cluster module 10. In the event of thermal runaway in an energy storage unit 1 in the energy storage cluster module 10, the fire-fighting component 3 provides fire-fighting medium to the energy storage unit 1 in the energy storage cluster module 10. The embodiment of this application saves costs by detecting thermal runaway and taking measures according to the cluster.

[0083] In some embodiments, the energy storage device 100 further includes a first pipeline 4, which includes a first main pipe 41 and at least two first branch pipes 42. The first main pipe 41 is connected to the detector 2, and the at least two first branch pipes 42 are connected to the first main pipe 41 and are respectively connected to at least two energy storage units 1.

[0084] In the above embodiment, the detector 2 is connected to the first main pipe 41, and the first main pipe 41 is connected to each energy storage unit 1 in the energy storage cluster module 10 through each first branch pipe 42. One detector 2 is responsible for detecting the internal state of all energy storage units 1 in one energy storage cluster module 10, thereby reducing costs and saving space.

[0085] In some embodiments, the energy storage device 100 further includes a second pipeline 5, which connects the fire-fighting assembly 3 to the first main pipeline 41.

[0086] In the above embodiment, the fire-fighting component 3 is connected to the first main pipe 41 of the first pipe 4 through the second pipe 5. The fire-fighting medium provided by the fire-fighting component 3 is sent to the energy storage unit 1 through the second pipe 5, a section of the first main pipe 41 and the first branch pipe 42. The fire-fighting component 3 and the detector 2 share a section of the first main pipe 41 and the first branch pipe 42, which simplifies the pipeline and saves costs.

[0087] In some embodiments, the energy storage device 100 includes at least two energy storage cluster modules 10 and at least two detectors 2, with each energy storage cluster module 10 connected to a detector 2 via a first conduit 4.

[0088] In the above embodiment, each energy storage cluster module 10 is configured with a detector 2, and all detectors 2 are electrically connected to the fire protection component 3.

[0089] In the above embodiment, each energy storage cluster module 10 is equipped with a detector 2 to detect the status of all energy storage units 1 in the energy storage cluster module 10. All detectors 2 are electrically connected to the fire suppression component 3. In the event of thermal runaway in any energy storage cluster module 10, the fire suppression component 3 can provide fire suppression medium to the corresponding energy storage cluster module 10. This method of detecting according to clusters and uniformly providing fire suppression medium by the fire suppression component 3 simplifies the structure and reduces costs.

[0090] In the above embodiments, each energy storage cluster module 10 is equipped with an independent detector 2 for detection. If any energy storage cluster module 10 has a problem, it can be detected and measures can be taken in a timely manner, which can improve the accuracy of control. Moreover, if a certain energy storage cluster module 10 has a problem, other components can still work normally, which enhances reliability.

[0091] In some embodiments, the energy storage device 100 further includes a second pipeline 5, which includes a second main pipe 51 and at least two second branch pipes 52. The second main pipe 51 is connected to the fire-fighting component 3, and the at least two second branch pipes 52 are connected to the second main pipe 51 and are respectively connected to the first main pipe 41 corresponding to at least two detectors 2.

[0092] In the above embodiment, since the energy storage device 100 has multiple energy storage cluster modules 10, and each energy storage cluster module 10 shares the same fire-fighting component 3, the second pipeline 5 is connected to the fire-fighting component 3 through the second main pipe 51, and is connected to each energy storage cluster module 10 through each second branch pipe 52 respectively; and each second branch pipe 52 is connected to the first main pipe 41 corresponding to at least two detectors 2 respectively. Therefore, the fire-fighting component 3 can share a section of the first main pipe 41 and the first branch pipe 42 with the detectors 2 corresponding to the energy storage cluster module 10, which simplifies the pipeline, saves costs, and facilitates construction.

[0093] In some embodiments, the energy storage device 100 further includes a switching valve 6, and each second branch pipe 52 is provided with a switching valve 6.

[0094] In the above embodiment, each second branch pipe 52 is connected to an energy storage cluster module 10, and each second branch pipe 52 is provided with a switching valve 6. The switching valve 6 is electrically connected to the detector 2 corresponding to the energy storage cluster module 10. When the detector 2 detects that the energy storage cluster module 10 has thermal runaway, it sends a signal to the switching valve 6, and the switching valve 6 opens, allowing the fire-fighting medium provided by the fire-fighting component 3 to enter the energy storage cluster module 10, thereby improving the accuracy of fire extinguishing.

[0095] In some embodiments, the power unit 21 is configured to operate continuously or periodically, and to stop operating when the detector 2 determines that the energy storage unit 1 has thermal runaway.

[0096] In the above embodiments, the power unit 21 can operate continuously or at fixed time intervals to draw fluid from the energy storage unit 1 to the detector 2. The detector 2 then detects the internal condition of the energy storage unit 1 to determine if there is a risk of thermal runaway. Optionally, the fixed time interval of the power unit 21 can be set to a relatively short period. Both continuous and intermittent monitoring can detect the risk of thermal runaway in the energy storage unit 1 in advance and quickly provide fire-fighting medium to the energy storage unit 1 through the fire-fighting component 3, reducing the risk and improving safety. Furthermore, if the detector 2 determines that the energy storage unit 1 has thermal runaway, the power unit 21 stops operating, reducing the flow of fire-fighting medium to the detector 2 and preventing damage to it.

[0097] In some embodiments, the energy storage device 100 further includes a signal line 7, and the fire-fighting component 3 further includes a control unit. The signal line 7 connects the control unit of the fire-fighting component 3 and each detector 2. The signal line 7 is used to send the signals sent by each detector 2 to the control unit of the fire-fighting component 3.

[0098] In some embodiments, the energy storage device 100 further includes a power cord 8, and the fire suppression system 3 further includes a power source. The power cord 8 connects the power source of the fire suppression system 3 to each detector 2, and the power source supplies power to each detector 2 via the power cord 8.

[0099] The following is combined with Figure 3 A specific embodiment of the energy storage device 100 is described in detail below.

[0100] Energy storage device 100 includes multiple energy storage cluster modules 10, such as two energy storage cluster modules 10, three energy storage cluster modules 10, or four or more energy storage cluster modules 10. Optionally, such as... Figure 3 The diagram shows five energy storage cluster modules 10. Each energy storage cluster module 10 includes multiple energy storage units 1, such as two, three, or four or more energy storage units 1. Optionally, as shown... Figure 3 Each energy storage cluster module 10 shown includes eight energy storage units 1.

[0101] The energy storage device 100 includes multiple detectors 2. Each detector 2 is connected to each energy storage unit 1 within an energy storage cluster module 10 via a first conduit 4, so as to detect the state of each energy storage unit 1 within the energy storage cluster module 10. Specifically, the first conduit 4 includes a first main pipe 41 and multiple first branch pipes 42. The first main pipe 41 is connected to the detector 2, and the multiple first branch pipes 42 are connected to the first main pipe 41, and the multiple first branch pipes 42 are respectively connected to each energy storage unit 1 in a one-to-one correspondence.

[0102] The energy storage device 100 includes a fire suppression component 3, which is connected to each energy storage cluster module 10 via a second pipeline 5. Specifically, the second pipeline 5 includes a second main pipe 51 and multiple second branch pipes 52. The second main pipe 51 is connected to the fire suppression component 3, and the multiple second branch pipes 52 are connected to the second main pipe 51. Furthermore, each of the multiple second branch pipes 52 is connected to the first main pipe 41 of a first pipeline 4 corresponding to a multiple detector 2. Each second main pipe 51 is equipped with a switching valve 6, which is electrically connected to the corresponding detector 2.

[0103] The fire suppression system 3 is electrically connected to all detectors 2. Specifically, each detector 2 is connected to the fire suppression system 3 via a signal line 7 and a power line 8.

[0104] Based on the description of the above embodiments, the energy storage device 100 provided in this application has at least the following beneficial effects.

[0105] Enhanced early warning capability: The detector 2 actively draws the fluid in the energy storage unit 1 to the detector 2 through the power component 21. The active suction detection method can detect the combustible gas in the energy storage unit 1 in real time. Even in the early stage of thermal runaway, it can detect possible fire hazards in time, provide early warning for the energy storage device, and avoid the occurrence or spread of fire.

[0106] Real-time monitoring: The power unit 21 can work continuously or periodically. Through continuous or periodic monitoring, the safety status of the energy storage unit 1 can be monitored in real time, reducing the risk of fire.

[0107] Reduce false alarms: Due to its enclosed design, the aspirating detector 2 only detects the fluid inside the detector 2, which can reduce false alarms caused by environmental factors (such as humidity and temperature changes) or local failures, thus improving reliability.

[0108] Enhanced safety: The aspirating detector 2 can be linked with the fire suppression system 3 so that the fire suppression system 3 can respond quickly and accurately in the event of a fire, protecting the safety of people and facilities.

[0109] Multifunctional: Detector 2 includes at least two of the following integrated elements: smoke detection element, temperature detection element, hydrogen detection element, carbon monoxide detection element, and volatile organic compound detection element. It can not only be set to detect smoke alarm, but also to monitor temperature alarm, and even to detect hydrogen, carbon monoxide and volatile organic compounds (VOC) alarm. It is particularly suitable for early warning in critical areas such as thermal runaway of energy storage units.

[0110] refer to Figure 4 Some embodiments of this application also provide an energy storage system, which includes a power conversion device 200 and the aforementioned energy storage device 100, wherein the power conversion device 200 is used to electrically connect the power generation device 300 and the energy storage device 100.

[0111] The energy storage system provided in this application includes the energy storage device 100 provided in this disclosure, and therefore has the beneficial effects of the energy storage device 100.

[0112] In some embodiments, the energy storage system includes at least two energy storage devices 100.

[0113] In some embodiments, the energy storage system may include one or more energy storage devices 100 and a power converter system (PCS), wherein the power converter system 200 is connected between the power generation device 300 and the energy storage device 100. The power generation device 300 generates electrical energy, which can be stored in the energy storage device 100 via the power converter system 200, and the electrical energy of the energy storage device 100 can also be transmitted to the power generation device 300 via the power converter system 200.

[0114] As an example, the power generation device 300 may specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, a power grid, etc. This application does not limit the specific type of the power generation device 300.

[0115] refer to Figure 5 Some embodiments of this application also provide a charging network, which includes a charging pile 400 and the energy storage device 100 or the energy storage system described above, wherein the energy storage device 100 is used to provide electrical energy to the charging pile 400.

[0116] In the above embodiment, the charging pile 400 is electrically connected to the energy storage device 100, which provides electrical energy to the charging pile 400. The charging pile 400 is electrically connected to the battery device in the energy storage device 100 via a cable, and the battery device can provide its stored electrical energy to the charging pile 400. The charging pile 400 has one or more connectors 500 for connecting to electrical equipment (such as a vehicle), thereby enabling it to replenish energy to the electrical equipment.

[0117] In some embodiments, the energy storage device 100 may be located inside the charging pile 400 (e.g., an integrated energy storage and charging unit) or outside the charging pile 400.

[0118] The charging network provided in this application embodiment includes the energy storage device 100 provided in this disclosure embodiment, and therefore has the corresponding beneficial effects of the energy storage device 100.

[0119] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0120] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device, characterized in that, include: Warehouse body (20); An energy storage unit (1) is located inside the container (20); The detector (2) is located inside the chamber (20). The detector (2) includes at least two of the following elements: a smoke detection element, a temperature detection element, a hydrogen detection element, a carbon monoxide detection element, and a volatile organic compound detection element. as well as The fire-fighting component (3) is located inside the housing (20) and provides fire-fighting medium to the energy storage unit (1) in response to the detection status of the detector (2).

2. The energy storage device according to claim 1, characterized in that, The detector (2) is connected to the energy storage unit (1) through a first pipe (4). The detector (2) includes a power unit (21) configured to provide power so that the fluid in the energy storage unit (1) is sent to the detector (2) through the first pipe (4).

3. The energy storage device according to claim 1, characterized in that, It also includes a second pipeline (5) and a switching valve (6), the second pipeline (5) connecting the fire-fighting assembly (3) and the energy storage unit (1), and the switching valve (6) located in the second pipeline (5) and opening in response to a signal from the detector (2).

4. The energy storage device according to claim 1, characterized in that, It also includes a first pipe (4) and a second pipe (5), the first pipe (4) connecting the detector (2) and the energy storage unit (1), and the second pipe (5) connecting the fire-fighting component (3) and the first pipe (4).

5. The energy storage device according to any one of claims 1 to 4, characterized in that, It includes an energy storage cluster module (10), which includes at least two energy storage units (1), and the detector (2) is configured correspondingly to the energy storage cluster module (10).

6. The energy storage device according to claim 5, characterized in that, It also includes a first pipeline (4), which includes a first main pipe (41) and at least two first branch pipes (42). The first main pipe (41) is connected to the detector (2), and the at least two first branch pipes (42) are connected to the first main pipe (41) and are respectively connected to at least two of the energy storage units (1).

7. The energy storage device according to claim 6, characterized in that, It also includes a second pipe (5) that connects the fire-fighting assembly (3) to the first main pipe (41).

8. The energy storage device according to claim 5, characterized in that, It includes at least two of the energy storage cluster modules (10) and at least two of the detectors (2), each of the energy storage cluster modules (10) being connected to one of the detectors (2) via a first conduit (4).

9. The energy storage device according to claim 8, characterized in that, It also includes a second pipeline (5), which includes a second main pipe (51) and at least two second branch pipes (52). The second main pipe (51) is connected to the fire-fighting component (3), and the at least two second branch pipes (52) are connected to the second main pipe (51) and are respectively connected to the first pipeline (4) corresponding to at least two of the detectors (2).

10. The energy storage device according to claim 9, characterized in that, It also includes a switching valve (6), and each of the second branch pipes (52) is provided with one of the switching valves (6).

11. The energy storage device according to claim 2, characterized in that, The power unit (21) is configured to operate continuously or periodically, and to stop operating when the detector (2) determines that the energy storage unit (1) has thermal runaway.

12. An energy storage system, characterized in that, It includes a power conversion device (200) and an energy storage device according to any one of claims 1 to 11, wherein the power conversion device (200) is used to electrically connect the power generation device (300) and the energy storage device.

13. A charging network, characterized in that, It includes a charging pile (400) and an energy storage device according to any one of claims 1 to 11 or an energy storage system according to claim 12, wherein the energy storage device is used to provide electrical energy to the charging pile (400).

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