energy storage device

Abstract

The application provides an energy storage device, which comprises a shell, a partition, a battery device, a pressure relief channel, an electrical module and a spraying device. The shell comprises a front wall and a rear wall arranged oppositely along a first direction, a top wall and a bottom wall arranged oppositely along a second direction, and a left wall and a right wall arranged oppositely along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other. The partition is arranged in the shell and comprises a discharge port arranged close to the rear wall relative to the front wall. The battery device is arranged above the partition, and a fire-fighting medium channel is arranged below the battery device along the second direction, wherein the fire-fighting medium channel is communicated with the discharge port. The pressure relief channel is located between the front wall and the battery device and is communicated with the fire-fighting medium channel. The electrical module is located below the partition. The spraying device comprises a spray head arranged in the shell, and the spray head is configured to spray the fire-fighting medium to the pressure relief channel.

Description

Technical Field

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

[0002] Energy storage technology is a type of energy storage technology. It converts electrical energy into other forms of energy for storage, and then converts that other form of energy back into electrical energy when needed. Energy storage devices are used to store electrical energy. Ensuring the safety of energy storage devices is one of the key research directions in the development of energy storage technology. Summary of the Invention

[0003] In view of the above problems, this application provides an energy storage device that is beneficial to improving the safety of energy storage devices.

[0004] This application provides an energy storage device, comprising a housing, an isolator, a battery unit, a pressure relief channel, an electrical module, and a sprinkler system. The housing includes a front wall and a rear wall opposite each other along a first direction, a top wall and a bottom wall opposite each other along a second direction, and a left wall and a right wall opposite each other along a third direction, wherein the first, second, and third directions are perpendicular to each other. The isolator is disposed within the housing and includes a discharge port, which is located near the rear wall relative to the front wall. The battery unit is disposed above the isolator, and a fire-fighting medium channel is disposed below the battery unit along the second direction, communicating with the discharge port. The pressure relief channel is located between the front wall and the battery unit and communicates with the fire-fighting medium channel. The electrical module is located below the isolator. The sprinkler system includes nozzles disposed within the housing, configured to spray fire-fighting medium into the pressure relief channel.

[0005] In the energy storage device of this application embodiment, a battery device, an isolator, an electrical module, and a sprinkler device are arranged inside the casing. The battery device is arranged above the isolator, and the electrical module is arranged below it. Under normal operation of the energy storage device, the pressure relief channel can serve as a heat dissipation space for the battery device. When the battery device experiences thermal runaway, the high-temperature and high-pressure gas released by the battery device can flow to the pressure relief channel, making the pressure relief channel a space for explosion venting. When the battery device experiences thermal runaway, the nozzle can spray a fire-fighting medium into the pressure relief channel. The fire-fighting medium itself has a relatively low temperature. The fire-fighting medium can contact and mix with the gas in the pressure relief channel to reduce the temperature of the gas in the pressure relief channel. The fire-fighting medium is then discharged outside the casing from the fire-fighting medium channel and the discharge port of the isolator. The temperature of the gas discharged outside the casing is relatively low, and the gas itself has relatively low hazard, which helps to reduce the possibility of safety hazards during the pressure relief process of the energy storage device and improves the safety of the energy storage device. The isolator can prevent the fire-fighting medium from flowing to the electrical module, reducing the possibility of the fire-fighting medium contacting the electrical module and causing the electrical module to malfunction, thus improving the safety of the energy storage device.

[0006] In one or more of the above alternative embodiments, the battery device and the separator serve as components forming a fire-fighting medium channel.

[0007] The way in which battery devices and separators are used as components to form fire-fighting medium channels allows for the reuse of battery devices and separators, which helps to reduce the number of parts forming fire-fighting medium channels and reduce the complexity of casing assembly.

[0008] In one or more of the above alternative embodiments, the separator includes an inclined surface facing the battery device, with the discharge port located at the lowest point of the inclined surface.

[0009] Under the influence of gravity, the fire-fighting medium can flow more quickly along the inclined surface to the discharge port, improving discharge efficiency and reducing the possibility of fire-fighting medium accumulating in the isolation component, thus reducing the possibility of fire-fighting medium accumulating and overflowing from the isolation component.

[0010] In one or more of the above optional embodiments, the separator includes a base and a first blocking portion and a second blocking portion connected to the base. An inclined surface is disposed on the base and located on the side of the base facing the battery device. Viewed along a second direction, the discharge port is located between the first blocking portion and the second blocking portion.

[0011] The first and second blocking parts can block the fire-fighting medium flowing onto the isolator, reducing the possibility of the fire-fighting medium overflowing from the left or right side of the isolator, improving the isolator's isolation effect on the fire-fighting medium, and reducing the possibility of the fire-fighting medium coming into contact with the electrical module.

[0012] In one or more of the above optional embodiments, the separator includes a third blocking portion connected to the base and located on the side of the base facing the battery device. Viewed along the second direction, the discharge port and the third blocking portion are arranged along the first direction.

[0013] The third blocking part can block the fire-fighting medium flowing onto the isolator, reducing the possibility of the fire-fighting medium overflowing from the rear of the isolator, further improving the isolator's isolation effect on the fire-fighting medium, and reducing the possibility of the fire-fighting medium coming into contact with the electrical module.

[0014] In one or more of the above optional embodiments, the separator includes a filter element disposed on an inclined surface.

[0015] The filter component can block debris, reducing the possibility of debris accumulating and clogging the discharge port, ensuring normal discharge of fire-fighting media, reducing the possibility of fire-fighting media accumulating and overflowing at the isolation device due to poor discharge, improving the isolation effect of the isolation device on the fire-fighting media, and reducing the possibility of fire-fighting media coming into contact with electrical modules.

[0016] In one or more of the above optional embodiments, the energy storage device includes a collector and a discharge pipe located below the isolation element, with the discharge port connected to the collector and the discharge pipe connected to the collector, and the discharge pipe configured to discharge the fire-fighting medium out of the housing.

[0017] Firefighting media flows through the discharge port, collects in the manifold, and then flows from the manifold into the discharge pipe. The manifold buffers large instantaneous flows of firefighting media, reducing the possibility of these media failing to enter the discharge port and overflowing into the isolation unit. The discharge pipe avoids electrical modules. The way the firefighting media exits the housing through the discharge pipe allows it to pass smoothly through the space containing the electrical modules. The discharge pipe isolates the firefighting media from the electrical modules, improving the safety of the firefighting media discharge process.

[0018] In one or more of the above optional embodiments, the battery device has a total positive electrode and a total negative electrode, and the energy storage device includes a conductive element connected to the total positive electrode and the total negative electrode. The housing includes a first beam and a second beam disposed opposite to each other along a third direction. The first beam includes an opening through which the conductive element passes and is connected to an electrical module. Along a second direction, the projections of the opening and the insulating element are separate.

[0019] By routing the conductive components through the openings in the first beam, the possibility of fire-fighting media flowing into the electrical module through holes in the isolator is reduced. The openings in the first beam also help reduce the likelihood of fire-fighting media sprayed from the sprinkler head or flowing to the isolator entering the openings. Routing the conductive components through the openings in the first beam allows for the reuse of the first beam's function, improving its utilization rate and reducing the space occupied by the conductive component wiring layout.

[0020] In one or more of the above alternative embodiments, the spacer is sealed to the front wall by a seal.

[0021] When the front wall is closed, the isolator and the front wall can jointly compress the seal to form a seal between them, eliminating any gaps. This seal between the isolator and the front wall helps reduce the possibility of fire-fighting media leaking between them and flowing into the electrical modules.

[0022] In one or more of the above optional embodiments, the battery device includes a plurality of battery modules, each battery module including a pressure relief section exposed in a pressure relief channel.

[0023] The pressure relief section and the pressure relief channel are arranged opposite each other so that when the pressure relief section is opened, the gas in the battery device can directly enter the pressure relief channel, shortening the gas flow path. The gas in the battery device experiences less flow resistance and can be smoothly released from the pressure relief section, improving the safety of the battery device.

[0024] In one or more of the above alternative embodiments, the front wall and the battery device serve as components forming a pressure relief channel.

[0025] The way the front wall and battery unit are used as components to form a pressure relief channel allows the front wall and battery unit to be reused, which helps to reduce the number of parts forming the pressure relief channel and reduce the complexity of the housing assembly.

[0026] In one or more of the above optional embodiments, the filter element includes multiple baffles.

[0027] In one or more of the above alternative embodiments, the filtering component includes a filter screen.

[0028] In one or more of the above optional embodiments, along the second direction, the distance between the nozzle and the top wall is less than the distance between the nozzle and the bottom wall. Along the third direction, the distance between the nozzle and the first beam is greater than the distance between the nozzle and the second beam.

[0029] The sprinkler head is positioned closer to the second beam than the first beam, which keeps the fire-fighting medium sprayed from the sprinkler head away from the opening of the first beam, thus reducing the possibility of the fire-fighting medium sprayed from the sprinkler head entering the opening.

[0030] In one or more of the above alternative embodiments, the energy storage device includes a filling element. The filling element seals the opening.

[0031] After the conductive wiring is completed in the opening, the opening is sealed with filler. The filler can be used to prevent the fire-fighting medium sprayed from the sprinkler head or flowing to the isolator from entering the opening, reducing the possibility of the fire-fighting medium flowing to the electrical module through the opening. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of an energy storage device with the front wall in the open state according to an embodiment of this application;

[0035] Figure 3 This is a partial cross-sectional view of an energy storage device provided in an embodiment of this application;

[0036] Figure 4 yes Figure 2 Enlarged view of point M in the middle;

[0037] Figure 5 yes Figure 3 Enlarged view of point P in the middle;

[0038] Figure 6 This is a schematic diagram of the structure of the isolation member provided in one embodiment of this application;

[0039] Figure 7 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application;

[0040] Figure 8 This is a partial structural schematic diagram of an energy storage device provided in an embodiment of this application;

[0041] Figure 9 This is a schematic diagram of the structure of an energy storage device with the front wall in the open state according to an embodiment of this application;

[0042] Figure 10 yes Figure 9 A magnified view of point V in the middle.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10. Energy storage equipment; 101. Pressure relief channel; 102. Fire-fighting medium channel;

[0045] 20. Shell; 201. First beam; 2011. Opening; 202. Second beam; 21. Front wall; 22. Rear wall; 23. Top wall; 24. Bottom wall; 25. Left wall; 26. Right wall;

[0046] 30. Battery assembly; 31. Battery module; 311. Pressure relief section;

[0047] 40. Isolation component; 401. Discharge port; 402. Inclined surface; 4021. First sub-inclined surface; 4022. Second sub-inclined surface; 403. Boundary line;

[0048] 41. Base; 42. First blocking part; 43. Second blocking part; 44. Third blocking part;

[0049] 50. Electrical modules;

[0050] 60. Sprinkler system; 61. Sprinkler head;

[0051] 70. Filter components;

[0052] 80. Current collector;

[0053] 90. Discharge pipe;

[0054] 100. Sealing components;

[0055] 110. Conductive components;

[0056] X, first direction;

[0057] Y, the second direction;

[0058] Z, Third-party orientation. Detailed Implementation

[0059] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0060] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by those skilled in the art to which the embodiments of this application pertain.

[0061] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0063] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0064] See Figures 1 to 6 As shown, this application provides an energy storage device 10, which includes a housing 20 and a battery device 30 located within the housing 20.

[0065] The housing 20 includes a front wall 21 and a rear wall 22 disposed opposite to each other along a first direction X, a top wall 23 and a bottom wall 24 disposed opposite to each other along a second direction Y, and a left wall 25 and a right wall 26 disposed opposite to each other along a third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0066] In some feasible implementations, the second direction Y can be the direction of gravity. The bottom wall 24 of the shell 20 can be close to the supporting platform, while the top wall 23 can be relatively far away from the supporting platform. The supporting platform can be, but is not limited to, the ground, a floor, or a concrete foundation platform.

[0067] In this embodiment of the energy storage device 10, the housing 20 provides a mounting base for the battery device 30. The housing 20 protects the battery device 30, reducing the possibility of structural damage due to collision. The battery device 30 stores electrical energy. When the energy storage device 10 needs to discharge externally, the battery device 30 can output electrical energy. An external power grid can also input electrical energy into the battery device 30 to charge it. The battery device 30 is a device that can convert electrical energy into chemical energy and vice versa.

[0068] In some possible implementations, the battery device 30 may include a plurality of battery modules 31. The plurality of battery modules 31 are arranged along a second direction Y.

[0069] See also some of the possible implementation methods. Figure 3 , Figure 5 and Figure 6 As shown, the energy storage device 10 includes an isolator 40 disposed within the housing 20. The isolator 40 includes a discharge port 401. The discharge port 401 is disposed near the rear wall 22 relative to the front wall 21. The discharge port 401 is configured to discharge a fire-fighting medium.

[0070] See also some of the possible implementation methods. Figure 3 and Figure 5 As shown, the battery device 30 is positioned above the separator 40. A fire-fighting medium passage 102 is located below the battery device 30 along the second direction Y. The fire-fighting medium passage 102 is connected to the discharge port 401.

[0071] In some feasible implementations, the energy storage device 10 includes a pressure relief channel 101 located between the front wall 21 and the battery unit 30, and connected to the fire-fighting medium channel 102. The pressure relief channel 101 refers to an air gap without any other obstruction or filling. Under normal operating conditions, the pressure relief channel 101 serves as a heat dissipation space for the battery unit 30, facilitating the dissipation of heat generated by the battery unit 30. In the event of thermal runaway, the battery unit 30 releases internal pressure by venting high-temperature, high-pressure gas, reducing the likelihood of a sustained increase in internal pressure and potential explosion, thus enhancing the safety of the battery unit 30. The released high-temperature, high-pressure gas can flow into the pressure relief channel 101.

[0072] In some possible implementations, the front wall 21 and the battery device 30 serve as components forming the pressure relief channel 101. "Front wall 21 and battery device 30 serve as components forming the pressure relief channel 101" means that the front wall 21 and the battery device 30 as a whole can serve as components forming the pressure relief channel 101, or that a portion of the front wall 21 and the battery device 30 can serve as components forming the pressure relief channel 101.

[0073] The way in which the front wall 21 and the battery device 30 are used as components to form the pressure relief channel 101 allows the front wall 21 and the battery device 30 to be reused, which helps to reduce the number of parts forming the pressure relief channel 101 and reduce the complexity of assembling the housing 20.

[0074] In some possible implementations, the energy storage device 10 includes an electrical module 50 located below the separator 40. The battery unit 30, separator 40, and electrical module 50 are arranged along a second direction Y. The housing 20 includes an upper chamber and a lower chamber. The upper chamber is located above the separator 40, and the lower chamber is located below the separator 40. The upper chamber and lower chamber respectively house the battery unit 30 and the electrical module 50. The separator 40 functions to isolate the battery unit 30 and the electrical module 50.

[0075] In some feasible ways, the electrical module 50 includes multiple electronic devices, and the functions of the electrical module 50 include, but are not limited to, controlling the charging and discharging of the battery device 30, converting AC and DC power, boosting or bucking voltage, etc.

[0076] See also some of the possible implementation methods. Figure 2 and Figure 4 As shown, the energy storage device 10 includes a sprinkler system 60, which includes nozzles 61 disposed within the housing 20. The nozzles 61 are configured to spray fire-fighting media into the pressure relief channel 101.

[0077] In the event of thermal runaway in the battery device 30, the nozzle 61 can spray a fire-fighting medium into the pressure relief channel 101. The fire-fighting medium can cool the gas flowing from the pressure relief channel 101, ensuring that the gas released outside the housing 20 is at a relatively low temperature and therefore less hazardous. Exemplarily, the fire-fighting medium can be a liquid. For example, the fire-fighting medium includes, but is not limited to, water or fluorinated liquid.

[0078] Figure 5 The dashed line in the diagram illustrates a simplified flow path of the fire-fighting medium. The fire-fighting medium can flow through the pressure relief channel 101 and the fire-fighting medium channel 102 to the discharge port 401, and finally be discharged outside the housing 20. The isolator 40 can prevent the fire-fighting medium from flowing to the electrical module 50, reducing the possibility of the fire-fighting medium coming into contact with the electrical module 50 and causing it to malfunction.

[0079] In the energy storage device 10 of this embodiment, a battery device 30, an isolator 40, an electrical module 50, and a spray device 60 are disposed within the housing 20. The battery device 30 is disposed above the isolator 40, and the electrical module 50 is disposed below it. Under normal operating conditions, the pressure relief channel 101 can serve as a heat dissipation space for the battery device 30. When the battery device 30 experiences thermal runaway, the high-temperature and high-pressure gas released by the battery device 30 can flow to the pressure relief channel 101, making the pressure relief channel 101 a space for explosion venting. When the battery device 30 experiences thermal runaway, the nozzle 61 can spray a fire-fighting medium into the pressure relief channel 101. The fire-fighting medium itself has a relatively low temperature. The fire-fighting medium can contact and mix with the gas in the pressure relief channel 101 to reduce the temperature of the gas in the pressure relief channel 101. The fire-fighting medium is then discharged from the fire-fighting medium channel 102 and the discharge port 401 of the isolator 40 to the outside of the housing 20. The gas discharged outside the casing 20 has a relatively low temperature and is less hazardous, which helps reduce the possibility of safety hazards during the depressurization process of the energy storage device 10. The isolation element 40 can prevent the fire-fighting medium from flowing to the electrical module 50, reducing the possibility of the fire-fighting medium coming into contact with the electrical module 50 and causing it to malfunction.

[0080] See also some of the possible implementation methods. Figure 5 As shown, the battery device 30 and the separator 40 serve as components forming the fire-fighting medium passage 102. "Battery device 30 and separator 40 serving as components forming the fire-fighting medium passage 102" means that each of the battery device 30 and the separator 40 as a whole can serve as a component forming the fire-fighting medium passage 102, or that a portion of each of the battery device 30 and the separator 40 can serve as a component forming the fire-fighting medium passage 102.

[0081] The battery device 30 and the separator 40 are used as components to form the fire-fighting medium passage 102, which allows the battery device 30 and the separator 40 to be reused. This helps to reduce the number of parts forming the fire-fighting medium passage 102 and reduce the complexity of assembling the housing 20.

[0082] In some examples, the left wall 25 and right wall 26 of the housing 20, the battery device 30, and the separator 40 serve as components forming the fire-fighting medium passage 102.

[0083] See also some of the possible implementation methods. Figure 6 As shown, the separator 40 includes an inclined surface 402 facing the battery device 30. The discharge port 401 is located at the lowest point of the inclined surface 402. Under the action of gravity, the fire-fighting medium can flow more quickly along the inclined surface 402 to the discharge port 401, improving discharge efficiency and reducing the possibility of fire-fighting medium accumulating in the separator 40, thus reducing the possibility of fire-fighting medium accumulating and overflowing from the separator 40.

[0084] In some examples, the inclined surface 402 includes a first sub-inclined surface 4021 and a second sub-inclined surface 4022. The angle between the first sub-inclined surface 4021 and the second sub-inclined surface 4022 is an obtuse angle. The boundary line 403 between the first sub-inclined surface 4021 and the second sub-inclined surface 4022 extends to the discharge port 401.

[0085] See in some examples Figure 6 As shown, the separator 40 includes a base 41 and a first blocking portion 42 and a second blocking portion 43 connected to the base 41. An inclined surface 402 is provided on the base 41. The first blocking portion 42 and the second blocking portion 43 are spaced apart along a third direction Z and are located on the side of the base 41 facing the battery device 30. See also... Figure 6 As shown, when viewed along the second direction Y, the discharge port 401 is located between the first blocking part 42 and the second blocking part 43.

[0086] The first blocking part 42 and the second blocking part 43 protrude from the base 41. The first blocking part 42 and the second blocking part 43 can block the fire-fighting medium flowing onto the isolation member 40, reduce the possibility of the fire-fighting medium overflowing from the left or right side of the isolation member 40, improve the isolation effect of the isolation member 40 on the fire-fighting medium, and reduce the possibility of the fire-fighting medium coming into contact with the electrical module 50.

[0087] See in some examples Figure 6 As shown, the separator 40 includes a third blocking portion 44 connected to the base 41 and located on the side of the base 41 facing the battery device 30. See also Figure 6 As shown, when viewed along the second direction Y, the discharge port 401 and the third blocking part 44 are arranged along the first direction X. The third blocking part 44 is connected to the side of the base 41 near the rear wall 22.

[0088] The third blocking part 44 protrudes from the base 41. The third blocking part 44 can block the fire-fighting medium flowing onto the isolator 40, reduce the possibility of the fire-fighting medium overflowing from the rear side of the isolator 40, further improve the isolation effect of the isolator 40 on the fire-fighting medium, and reduce the possibility of the fire-fighting medium coming into contact with the electrical module 50.

[0089] In some examples, the first blocking portion 42 and the second blocking portion 43 are respectively connected to the third blocking portion 44. Exemplarily, the base 41, the first blocking portion 42, the second blocking portion 43 and the third blocking portion 44 are integrally formed structures.

[0090] In some examples, the base 41 is inclined. The side of the base 41 near the rear wall 22 is lower than the side of the base 41 near the front wall 21, which facilitates the flow of the fire-fighting medium towards the side of the base 41 near the rear wall 22 under the action of gravity, and helps to improve the discharge efficiency of the fire-fighting medium.

[0091] In some examples, the separator 40 includes a filter element 70 disposed on the inclined surface 402. When thermal runaway occurs in the battery device 30, debris is generated, for example, the battery device 30 includes a pressure relief section 311. This debris may include fragments generated when the pressure relief section 311 on the battery device 30 opens, or structural fragments of the battery cell. The debris can fall along the pressure relief channel 101 to the separator 40.

[0092] The filter element 70 can block debris, reducing the possibility of debris accumulating at the discharge port 401 and clogging the discharge port 401, so that the discharge port 401 can discharge the fire-fighting medium normally. It also reduces the possibility of the fire-fighting medium accumulating at the isolation element 40 and overflowing the isolation element 40 due to poor discharge, improves the isolation effect of the isolation element 40 on the fire-fighting medium, and reduces the possibility of the fire-fighting medium coming into contact with the electrical module 50.

[0093] For example, the filter element 70 includes multiple baffles. The baffles can block or intercept debris, while the fire-fighting medium can flow through the gap between any two baffles.

[0094] For example, the filter element 70 includes a filter screen. The filter screen can block and intercept debris, while the fire-fighting medium can flow through the mesh.

[0095] For example, the inclined surface 402 includes a first sub-inclined surface 4021 and a second sub-inclined surface 4022. Filter components 70 are respectively provided on the first sub-inclined surface 4021 and the second sub-inclined surface 4022.

[0096] See also some of the possible implementation methods. Figure 3 and Figure 7As shown, the energy storage device 10 includes a manifold 80 and a discharge pipe 90 located below the isolation member 40. A discharge port 401 communicates with the manifold 80. The discharge pipe 90 is connected to the manifold 80. The discharge pipe 90 is configured to discharge fire-fighting media from the housing 20.

[0097] The fire-fighting medium flows through the discharge port 401, collects in the manifold 80, and then flows from the manifold 80 into the discharge pipe 90. The manifold 80 can buffer the instantaneous large flow of fire-fighting medium, reducing the possibility that the fire-fighting medium may fail to enter the discharge port 401 smoothly, causing it to overflow into the isolation component 40. The discharge pipe 90 can avoid the electrical module 50. The way the fire-fighting medium is discharged from the housing 20 through the discharge pipe 90 allows the fire-fighting medium to pass smoothly through the space where the electrical module 50 is located. The discharge pipe 90 can isolate the fire-fighting medium and the electrical module 50, improving the safety of the fire-fighting medium discharge process.

[0098] In some examples, the isolator 40 includes a base 41. The manifold 80 is connected to the base 41. A sealing element is provided between the manifold 80 and the base 41 to reduce the possibility of leakage of the fire-fighting medium from the connection between the manifold 80 and the base 41. Exemplarily, the sealing element may include sealant or a sealing ring.

[0099] See also some of the possible implementation methods. Figure 8 , Figure 9 and Figure 10 As shown, the battery device 30 has a total positive electrode and a total negative electrode. The energy storage device 10 includes a conductive element 110 connected to the total positive electrode and the total negative electrode. The housing 20 includes a first beam 201 and a second beam 202 disposed opposite each other along a third direction Z. The first beam 201 includes an opening 2011. The conductive element 110 passes through the opening 2011 and is connected to the electrical module 50. Along a second direction Y, the projection of the opening 2011 and the projection of the isolator 40 are separate and do not overlap.

[0100] The conductive component 110 is routed through the opening 2011 of the first beam 201, reducing the possibility that fire-fighting media might flow into the electrical module 50 through the holes in the isolator 40. The opening 2011 in the first beam 201 also reduces the likelihood of fire-fighting media ejected from the sprinkler head 61 or flowing to the isolator 40 entering the opening 2011. The route of the conductive component 110 through the opening 2011 of the first beam 201 allows for the reuse of the function of the first beam 201, improving its utilization rate and reducing the space occupied by the wiring layout of the conductive component 110.

[0101] In some examples, conductive element 110 includes conductive cables.

[0102] In some examples, the isolator 40 includes a base 41. The opening 2011 is higher than the base 41, so that the first beam 201 can block the fire-fighting medium flowing to the base 41, reducing the possibility that the fire-fighting medium enters the opening 2011 and flows through the opening 2011 to the electrical module 50.

[0103] In some examples, along the second direction Y, the distance between the sprinkler head 61 and the top wall 23 is less than the distance between the sprinkler head 61 and the bottom wall 24. Along the third direction Z, the distance between the sprinkler head 61 and the first beam 201 is greater than the distance between the sprinkler head 61 and the second beam 202. The sprinkler head 61 is positioned closer to the second beam 202 relative to the first beam 201, thus keeping the fire-fighting medium ejected from the sprinkler head 61 away from the opening 2011 of the first beam 201, which helps reduce the possibility of the fire-fighting medium ejected from the sprinkler head 61 entering the opening 2011.

[0104] In some examples, a filter screen is installed at the discharge port 401. The filter screen can prevent debris from entering the manifold 80 and the drain pipe, reducing the possibility of debris clogging the manifold 80 and the drain pipe.

[0105] In some examples, the energy storage device 10 includes a filler (not shown). The filler seals the opening 2011. After the wiring of the conductive element 110 is completed in the opening 2011, the opening 2011 is sealed with the filler. The filler can be used to prevent fire-fighting media ejected from the nozzle 61 or flowing to the isolator 40 from entering the opening 2011, reducing the possibility of fire-fighting media flowing to the electrical module 50 through the opening 2011.

[0106] For example, the filler can be a sealant or a resilient sealing plug.

[0107] See in some examples Figure 5 , Figure 9 and Figure 10 As shown, the isolator 40 and the front wall 21 are sealed by the seal 100. When the front wall 21 is in the closed state, the isolator 40 and the front wall 21 can jointly compress the seal 100 to form a seal between the isolator 40 and the front wall 21, with no gaps between them. The seal 100 between the isolator 40 and the front wall 21 helps reduce the possibility of fire-fighting media leaking from between the isolator 40 and the front wall 21 and flowing to the electrical module 50.

[0108] In some examples, the material of seal 100 includes, but is not limited to, rubber or silicone.

[0109] In some examples, housing 20 includes a first beam 201 and a second beam 202 disposed opposite each other along a third direction Z. The first beam 201 and the second beam 202 are each sealed to the front wall 21 by a seal 100.

[0110] See also some of the possible implementation methods. Figure 2 As shown, the battery device 30 includes a plurality of battery modules 31. Each battery module 31 includes a pressure relief section 311. The pressure relief section 311 is disposed facing the front wall 21. The pressure relief section 311 is exposed in the pressure relief channel 101.

[0111] The pressure relief section 311 is arranged opposite to the pressure relief channel 101 so that when the pressure relief section 311 is opened, the gas in the battery device 30 can directly enter the pressure relief channel 101, shortening the gas flow path. The gas in the battery device 30 experiences less flow resistance and can be smoothly released from the pressure relief section 311, thereby improving the safety of the battery device 30.

[0112] In some examples, the pressure relief section 311 includes, but is not limited to, a pressure relief valve.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. 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: The housing includes a front wall and a rear wall disposed opposite to each other along a first direction, a top wall and a bottom wall disposed opposite to each other along a second direction, and a left wall and a right wall disposed opposite to each other along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; An isolation element is disposed within the housing, the isolation element including a discharge port, which is disposed near the rear wall relative to the front wall; A battery device is disposed above the isolation member. Along the second direction, a fire-fighting medium channel is disposed below the battery device, and the fire-fighting medium channel is connected to the discharge port. A pressure relief channel is located between the front wall and the battery device, and is connected to the fire-fighting medium channel; An electrical module is located below the isolator; A sprinkler system includes a nozzle disposed within the housing, the nozzle being configured to spray a fire-fighting medium into the pressure relief channel.

2. The energy storage device according to claim 1, characterized in that, The battery device and the separator serve as components forming the fire-fighting medium channel.

3. The energy storage device according to claim 1 or 2, characterized in that, The separator includes an inclined surface facing the battery device, and the outlet is located at the lowest point of the inclined surface.

4. The energy storage device according to claim 3, characterized in that, The separator includes a base and a first blocking portion and a second blocking portion connected to the base. The inclined surface is disposed on the base and located on the side of the base facing the battery device. Viewed along the second direction, the discharge port is located between the first blocking part and the second blocking part.

5. The energy storage device according to claim 4, characterized in that, The separator includes a third blocking portion connected to the base and located on the side of the base facing the battery device; Viewed along the second direction, the discharge port and the third barrier are arranged along the first direction.

6. The energy storage device according to claim 3 or 4, characterized in that, The isolation element includes a filter component disposed on the inclined surface.

7. The energy storage device according to any one of claims 1 to 6, characterized in that, The energy storage device includes a collector and a discharge pipe located below the isolation element. The discharge port is connected to the collector, and the discharge pipe is connected to the collector. The discharge pipe is configured to discharge fire-fighting media from the housing.

8. The energy storage device according to any one of claims 1 to 7, characterized in that, The battery device has a total positive electrode and a total negative electrode, and the energy storage device includes a conductive element connected to the total positive electrode and the total negative electrode. The housing includes a first beam and a second beam disposed opposite to each other along the third direction, the first beam including an opening through which the conductive element passes and is connected to the electrical module; Along the second direction, the projection of the opening and the projection of the isolator are separate.

9. The energy storage device according to any one of claims 1 to 8, characterized in that, The spacer is sealed to the front wall by a seal.

10. The energy storage device according to any one of claims 1 to 9, characterized in that, The battery device includes multiple battery modules, each battery module including a pressure relief section exposed in the pressure relief channel.

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