Energy storage device

Abstract

The utility model discloses an energy storage device, and belongs to the technical field of batteries, and the energy storage device comprises a box body which is provided with a containing cavity; the plurality of battery modules are positioned in the accommodating cavity and are connected with the box body; the pipeline assembly is positioned in the accommodating cavity and is used for spraying a fire extinguishing medium to the plurality of battery modules; and the connecting assembly comprises a plurality of guide-in pipes, at least part of each guide-in pipe is located in the containing cavity, and the guide-in pipes are connected with the pipeline assembly, so that the fire extinguishing medium enters the pipeline assembly through the guide-in pipes. According to the energy storage device, by arranging the multiple guide-in pipes, when the interior of the energy storage device is subjected to fire extinguishing, different fire extinguishing media can be guided into the different guide-in pipes, the selectivity of the fire extinguishing media is improved, fire extinguishing is conducted through the different fire extinguishing media at different stages of fire progress, and the fire extinguishing effect can be improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to an energy storage device. Background Art

[0002] A fire protection system is generally installed inside the energy storage device used to store batteries. The fire protection system can only introduce one fire extinguishing medium for spraying fire extinguishing, which has low selectivity and cannot extinguish fires at different stages with different fire extinguishing media. Utility Model Content

[0003] Purpose of this application: The embodiments of this application provide an energy storage device, which aims to overcome the technical problem of being unable to extinguish fires at different stages by using different fire extinguishing media.

[0004] Technical solution: An energy storage device according to an embodiment of the present application includes:

[0005] A box body having a receiving cavity;

[0006] A plurality of battery modules are arranged in the accommodating cavity;

[0007] a pipe assembly, at least partially located in the accommodating cavity, for spraying a fire extinguishing medium onto the plurality of battery modules;

[0008] The connecting assembly includes a plurality of inlet pipes, at least a portion of each inlet pipe is located in the box body, and each inlet pipe is connected to the pipeline assembly so that the fire extinguishing medium enters the pipeline assembly through the inlet pipe.

[0009] In some embodiments, the connection assembly includes:

[0010] The third tube is located in the box body and is connected to the pipeline assembly. The third tube extends along the length direction of the box body. The plurality of inlet tubes are all connected to the third tube.

[0011] In some embodiments, the connection assembly further comprises:

[0012] A plurality of second tubes are located in the box body and spaced apart in the length direction. Each second tube extends along the width direction of the box body. The third tube is connected to the pipeline assembly through the second tube.

[0013] In some embodiments, the plurality of battery modules are spaced apart along the length direction of the box body; the pipeline assembly includes a plurality of spray parts, which are spaced apart along the length direction of the box body and connected to the connecting assembly, and each of the battery modules is provided with the spray part on at least one side in the length direction.

[0014] In some embodiments, each of the spray sections comprises:

[0015] a first tube, located on one side of the battery module in the length direction and connected to the connecting assembly, the first tube extending along the height direction of the box;

[0016] a plurality of nozzle units, the plurality of nozzle units being arranged at intervals along the height direction and connected to the first pipe;

[0017] The height direction intersects with the length direction.

[0018] In some embodiments, the spray head unit comprises:

[0019] The nozzle body is located on one side of the first tube in the length direction and is connected to the first tube.

[0020] In some embodiments, the spray head unit comprises:

[0021] a plurality of nozzle bodies, the plurality of nozzle bodies being spaced apart around the first tube, at least one nozzle body being connected to the first tube in the length direction, and at least one nozzle body being connected to the first tube in the width direction of the box;

[0022] The width direction intersects with the height direction and the length direction.

[0023] In some embodiments, the battery module includes a plurality of module units arranged along the height direction, and each of the module units is connected to the box;

[0024] Each of the nozzle units is arranged corresponding to one of the module units, and each of the nozzle units is located on one side of one of the module units in the length direction.

[0025] In some embodiments, the energy storage device includes a plurality of the pipeline assemblies, and the plurality of pipeline assemblies are spaced apart along the width direction of the box.

[0026] In some embodiments, the box body has an integrated cavity, and the integrated cavity and the accommodating cavity are spaced apart along the length direction of the box body; the energy storage device includes a control unit, and the control unit is arranged in the integrated cavity.

[0027] In some embodiments, the box body has an installation cavity, and the installation cavity and the accommodating cavity are spaced apart along the height direction of the box body; the energy storage device includes a power unit, and the power unit is arranged in the installation cavity.

[0028] Beneficial effects: The energy storage device of the embodiment of the present application includes: a box body having a accommodating cavity; a plurality of battery modules located in the accommodating cavity and connected to the box body; a pipeline assembly located in the accommodating cavity and used to spray a fire extinguishing medium to the plurality of battery modules; a connecting assembly including a plurality of inlet pipes, at least a portion of each inlet pipe being located in the accommodating cavity and all being connected to the pipeline assembly so that the fire extinguishing medium enters the pipeline assembly through the inlet pipe. By providing a plurality of inlet pipes, different fire extinguishing media can be introduced into different inlet pipes when extinguishing a fire inside the energy storage device, thereby improving the selectivity of the fire extinguishing medium. By extinguishing a fire through different fire extinguishing media at different stages of the fire, the fire extinguishing effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A sectional perspective view of an energy storage device provided in an embodiment of the present application;

[0031] Figure 2 A side cross-sectional view of an energy storage device provided in an embodiment of the present application;

[0032] Figure 3 A bottom cross-sectional perspective view of an energy storage device provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the structure of the spray part and the connection part provided in an embodiment of the present application, wherein the first tube is directly connected to the third tube;

[0034] Figure 5 A schematic diagram of the structure of the spray part and the connection part provided in an embodiment of the present application, wherein the first tube is connected to the third tube through the second tube;

[0035] Figure 6 A top view of a first connection between the first tube and the nozzle body provided in an embodiment of the present application;

[0036] Figure 7 A top view of a second connection between the first tube and the nozzle body provided in an embodiment of the present application;

[0037] Figure 8 A top view of a third connection between the first tube and the nozzle body provided in an embodiment of the present application;

[0038] Figure 9A top view of a fourth connection between the first tube and the nozzle body provided in an embodiment of the present application;

[0039] Figure markings: 10-box; 11-accommodating chamber; 12-connecting hole; 13-integrated chamber; 14-installation chamber; 20-battery module; 21-module unit; 30-pipeline assembly; 31-spraying part; 311-first tube; 312-nozzle unit; 3121-nozzle body; 40-connecting assembly; 41-second tube; 42-third tube; 43-introduction tube; 50-control unit; 60-power unit; X-length direction; Y-height direction; Z-width direction. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0041] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, and at least one means one, two, or more, unless otherwise clearly and specifically defined.

[0042] As an introduction to the embodiments of this application, an energy storage device is described. In this energy storage device, a fire sprinkler system, commonly used by most manufacturers, is installed inside the energy storage box. Most of these systems employ a pendant sprinkler head mounted on the top of the box to fire the battery modules within the box. The protection radius is calculated based on the area of ​​the box, and the distribution of the sprinkler head is determined accordingly. This distribution is limited by the distance between the top battery module and the sprinkler head. In practice, the sprinkler effect falls far short of the required coverage control. The lateral spacing between the battery modules within the box and the vertical spacing between each module unit are limited. The firefighting medium sprayed by the firefighting system above the battery module generally only covers the topmost portion of the battery module and a small portion of the side, resulting in a relatively small coverage area. Furthermore, the staggered internal supports and vertical support beams of the box block the sprayed firefighting medium, resulting in missed areas. This prevents the firefighting medium sprayed by the firefighting system from effectively spraying the battery module surface. The firefighting medium covers a relatively small area of ​​the battery module, making it difficult for the firefighting medium to come into contact with the fire source, resulting in a poor firefighting effect.

[0043] In terms of installation of fire protection system, as the number of nozzles that need to be installed increases, there are too many installation points, which makes it very easy for leakage to occur, installation deviation, and the installation direction of the nozzles are difficult to control.

[0044] In terms of cost, energy storage devices often have multiple fire extinguishing systems such as water sprinkler fire extinguishing systems and gas fire extinguishing systems. Each system is independent of each other, which increases fire fighting costs and reduces space utilization within the device.

[0045] In view of this, an embodiment of the present application provides an energy storage device to overcome at least one of the above-mentioned technical problems.

[0046] See also Figure 1 and Figure 2 In an embodiment of the present application, the energy storage device includes a housing 10, a plurality of battery modules 20, a piping assembly 30, and a connecting assembly 40. The housing 10 has a accommodating cavity 11, and a plurality of battery modules 20 can be installed inside the accommodating cavity 11, as well as a support structure for fixing the battery modules 20 (the support structure includes a bracket, a vertical support beam, etc.), a piping assembly, a cooling structure, etc. The plurality of battery modules 20 are installed in the accommodating cavity 11 through the support structure, and are connected to the housing 10 through the support structure to ensure the stable shape of the battery modules 20. Among them, the plurality of battery modules 20 are arranged at intervals X along the length direction of the housing 10, which facilitates the orderly installation of the plurality of battery modules 20 and improves the space utilization inside the accommodating cavity.

[0047] At least a portion of the piping assembly 30 is located within the housing 11 and is used to spray a fire extinguishing medium onto the multiple battery modules 20. The connecting assembly 40 includes multiple inlet pipes 43, each of which is at least partially located within the housing 10 and connected to the piping assembly 30, allowing the fire extinguishing medium to enter the piping assembly 30 through the inlet pipes 43. It is understood that different fire extinguishing media can be introduced into the interior of the piping assembly 30 through the multiple inlet pipes 43 of the connecting assembly 40. The multiple inlet pipes 43 are respectively connected to different containers or devices storing fire extinguishing media externally. When extinguishing a fire within the energy storage device, different fire extinguishing media can be introduced into different inlet pipes 43, thereby improving the selectivity of the fire extinguishing medium. Due to the different effects of fire extinguishing media, for example, foam fire extinguishing agents can form a covering to isolate liquid fuel from contact with air, while dry powder fire extinguishing agents can suppress the combustion reaction. Different fire extinguishing media can be introduced at different stages of a fire, and different fire extinguishing media can be used to extinguish different fires, thereby improving the fire extinguishing effect. When the inlet pipe 43 is not connected to a container or device storing a fire extinguishing medium, there is no stored pressure inside the inlet pipe 43 and the pipe assembly 30. When the inlet pipe 43 is connected to a container or device storing a fire extinguishing medium in the outside world, the fire extinguishing medium can enter the pipe assembly 30 through the connection assembly 40 by the pressure provided by the container or device itself, and the battery module 20 is sprayed through the pipe assembly 30 without the need for an additional pressure device (for example, when a fire occurs, multiple inlet pipes 43 are connected to a fire hose or other fire extinguishing medium, and the fire extinguishing medium is driven by its own pressure to spray the battery module 20 without the need for an additional pressure device), thereby reducing energy consumption and costs. At the same time, the entire pipeline is in a low-pressure state, and safety issues such as pipeline rupture and fire extinguishing medium leakage will not occur.

[0048] See also Figure 1 、 Figure 2 and Figure 4In combination with the above embodiments, in some embodiments, the connecting assembly 40 includes a third tube 42. The third tube 42 is disposed in the housing 10 and is connected to the pipeline assembly 30. The third tube 42 extends along the longitudinal direction X of the housing 10, and multiple inlet tubes 43 are connected to the third tube 42. It can be understood that the multiple inlet tubes 43 are connected to the pipeline assembly 30 through the third tube 42, which facilitates a simple and orderly arrangement of the structure. When the fire extinguishing medium is introduced through the inlet tube 43, the fire extinguishing medium will enter the third tube 42 and then enter the pipeline assembly 30 from the third tube 42, without the need to connect the multiple inlet tubes 43 to the pipeline assembly 30 separately. If the inlet tube 43 is directly connected to the pipeline assembly 30, in order to ensure the fire extinguishing effect, the number of pipeline assemblies 30 needs to be the same as the number of inlet tubes 43, and multiple inlet tubes need to be provided, which will complicate the structural setting of the pipeline. Furthermore, if multiple pipe assemblies 30 are provided, and one inlet pipe 43 corresponds to each pipe assembly 30, then to enable multiple pipe assemblies 30 to spray the fire extinguishing medium simultaneously, the fire extinguishing medium must be introduced into multiple inlet pipes 43 simultaneously, increasing operational difficulty and cost. Therefore, the provision of a third pipe 42 as an intermediate structure effectively reduces the operational difficulty of introducing the fire extinguishing medium and reduces the space occupied by the inlet pipes 43 within the housing 10.

[0049] See also Figure 1 、 Figure 2 and Figure 4In combination with the above embodiments, in some embodiments, the pipe assembly 30 is at least partially located in the accommodating cavity 11 and is connected to the box body 10. The pipe assembly 30 includes a plurality of spray parts 31, which are arranged at intervals along the longitudinal direction X of the box body 10 and are connected to the box body 10. Each battery module 20 is provided with a spray part 31 on at least one side in the longitudinal direction X. When a battery module 20 catches fire, the fire extinguishing medium can be sprayed on the plurality of battery modules 20 through the plurality of spray parts 31 on the pipe assembly 30 to achieve the purpose of extinguishing the fire. At the same time, the plurality of spray parts 31 are arranged at intervals along the longitudinal direction X of the box body 10, and their arrangement direction is the same as the arrangement direction of the plurality of battery modules 20, and each battery module 20 is provided with a spray part 31 on at least one side in the longitudinal direction X, so that the spray part 31 sprays at least one side of a battery module 20. Since the battery module 20 is composed of multiple module units 21 stacked along the height direction of the box, the side area of ​​the battery module 20 is generally larger. By arranging the spray part 31 on one side of the battery module 20 along the length direction, the spray part 31 can directly spray the side of the battery module 20, which facilitates spraying, reduces the obstruction of the support structure to the fire extinguishing medium, and avoids the influence of the distance between two adjacent battery modules 20 on the spraying; since the spraying effect has a certain degree of diffusion, when the fire extinguishing medium is sprayed to the side of the battery module 20, a part of the fire extinguishing medium will also be sprayed to the top and bottom of the battery module 20, thereby further increasing the area covered by the fire extinguishing medium and improving the fire fighting effect. At the same time, each battery module 20 is provided with a spray portion 31 on at least one side in the length direction X, that is, a spray portion 31 can be provided between two adjacent battery modules 20. By spraying the sides of the battery module 20 through the spray portion 31, the fire on one of the battery modules 20 can be prevented from spreading to the adjacent battery module 20, thereby isolating the fire.

[0050] See also Figure 1 、 Figure 2 、 Figure 4 and Figure 5 In combination with the above embodiments, in some embodiments, each spraying portion 31 includes a first tube 311 and a plurality of spray head units 312 .

[0051] The first tube 311 is located on one side of the battery module 20 in the length direction X and is connected to the connecting assembly 40. The first tube 311 extends along the height direction Y of the housing 10. Multiple nozzle units 312 are arranged at intervals along the height direction Y and are connected to the first tube 311. It is understood that the fire extinguishing medium in the first tube 311 can be sprayed toward the side of the battery module 20 through the multiple nozzle units 312 connected thereto. The extension direction of the first tube 311 is the same as the stacking direction of the module units 21 in the battery module 20. The multiple nozzle units 312 are also stacked in the same direction as the module units 21 in the battery module 20. The first tube 311 has sufficient height to install the multiple nozzle units 312. Optionally, the height of the first tube 311 can be the same as the height of the battery module 20, so that the fire extinguishing medium sprayed by the multiple nozzle units 312 can fully cover the side of the battery module 20. The module units 21 in the battery module 20 are stacked in the height direction, and there is a certain distance between two adjacent module units 21. The fire extinguishing medium sprayed by the nozzle unit 312 is sprayed in a range and has a certain degree of diffusion, so that the fire extinguishing medium can be sprayed to the top and bottom of the module unit 21, covering the top and bottom of the module unit 21 to a certain extent, thereby improving the fire fighting effect and the area covered by the spray.

[0052] The height direction Y intersects the length direction X. Optionally, the height direction Y and the length direction X are perpendicular to each other.

[0053] See also Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 In combination with the above embodiments, in some embodiments, the nozzle unit 312 includes a nozzle body 3121. The nozzle body 3121 is located on one side of the first tube 311 in the length direction X and is connected to the first tube 311. The nozzle body 3121 can be an atomizing nozzle. The atomizing nozzle can make the particle size of the sprayed fire extinguishing medium smaller and the vaporization speed faster, so that more heat can be taken away in a short time and it has a strong cooling effect. The fire extinguishing medium sprayed by the atomizing nozzle is fan-shaped (the fan angle can be 60°, 90°, etc.), so that the fire extinguishing medium can be diffused within a certain range. Different types of atomizing nozzles can be selected as needed to change the range of the fire extinguishing medium spraying. At the same time, the fire extinguishing agent released by the atomizing nozzle can form a layer of mist in the device to isolate oxygen and dilute the combustible gas. The nozzle body 3121 can be set on one side of the first tube 311 in the length direction X. At this time, the nozzle body 3121 can spray the fire extinguishing medium toward the side of a battery module 20, so that the fire extinguishing medium can fully cover the side of the battery module 20, and to a certain extent cover the top and bottom of the module unit 21 in the battery module 20, thereby increasing the coverage area and improving the fire extinguishing effect.

[0054] See also Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 9 In conjunction with the above embodiments, in some embodiments, the nozzle unit 312 includes multiple nozzle bodies 3121. These nozzle bodies 3121 are spaced apart around the first tube 311. At least one nozzle body 3121 is connected to the first tube 311 in the longitudinal direction X, and at least one nozzle body 3121 is connected to the first tube 311 in the width direction Z of the housing 10. It is understood that the nozzle unit 312 includes multiple nozzle bodies 3121, each positioned differently to spray the fire extinguishing medium in different directions. In the longitudinal direction X, one nozzle body 3121 may be connected to the first tube 311, spraying the fire extinguishing medium toward the side of one battery module 20. Alternatively, two nozzle bodies 3121 may be connected to the first tube 311 in the longitudinal direction X, spraying the fire extinguishing medium toward the sides of two adjacent battery modules 20, respectively. This can improve spraying efficiency and fire extinguishing effectiveness. Of course, a larger number of nozzle bodies 3121 can be provided in the length direction X to improve the spraying efficiency and the fire extinguishing effect. At the same time, in the width direction Z, there can be a nozzle body 3121 connected to the first tube 311, and the nozzle body 3121 can spray the fire extinguishing medium toward the door of the box body 10, so that the fire extinguishing medium can cover the door of the box body 10; or spray the fire extinguishing medium in the direction away from the door; or along the width direction Z, nozzle bodies 3121 with these two orientations are provided on the first tube 311 at the same time, so that the fire extinguishing medium can be diffused between two adjacent battery modules 20, playing a role in extinguishing the fire, and preventing the fire on the battery module 20 from spreading to the adjacent battery module 20, playing a role in blocking the fire. Of course, a larger number of nozzle bodies 3121 can be provided in the width direction Z to improve the efficiency of spraying the fire extinguishing medium and the fire blocking effect. Optionally, for the nozzle unit 312, two nozzle bodies 3121 can be relatively set to be connected to the first tube 311 in the length direction X, and at the same time, two nozzle bodies 3121 can be relatively set to be connected to the first tube 311 in the width direction Z, so that the nozzle unit 312 can spray the fire extinguishing medium on two adjacent battery modules 20 at the same time, and can also spray the fire extinguishing medium toward the box door and away from the box door at the same time, further improving the efficiency of spraying the fire extinguishing medium and the fire-blocking effect.

[0055] The width direction Z intersects with the height direction Y and the length direction X. Optionally, the width direction Z, the height direction Y and the length direction X are perpendicular to each other.

[0056] See also Figure 1 and Figure 2 In combination with the above embodiments, in some embodiments, the battery module 20 includes a plurality of module units 21 arranged along the height direction Y. Each module unit 21 can be connected to the housing 10 via a supporting structure to fix the module unit 21 and improve its stability. Each nozzle unit 312 is arranged corresponding to a module unit 21, and each nozzle unit 312 is located on one side of a module unit 21 in the length direction X. It can be understood that the number of module units 21 on the battery module 20 is the same as the number of nozzle units 312 on the first tube 311 on one side of the battery module 20, and the nozzle units 312 are arranged corresponding to the module units 21, so that each nozzle unit 312 can spray the fire extinguishing medium on the side of a module unit 21. Optionally, the position of the nozzle unit 312 corresponds to the midpoint of the height of a corresponding module unit 21, so that the coverage area of ​​the fire extinguishing medium sprayed by the nozzle unit 312 on the module unit 21 spreads from the center position to the periphery, so that the fire extinguishing medium can be more evenly and fully covered on the side of the battery module 20.

[0057] See also Figure 1 and Figure 5 In combination with the above embodiments, in some embodiments, the energy storage device includes a plurality of pipeline assemblies 30, and the plurality of pipeline assemblies 30 are spaced apart along the width direction Z of the box body 10. When there is only one pipeline assembly 30, the spray portion 31 of each pipeline assembly 30 is arranged at the midpoint position of the box body along the width direction Z. When the number of pipeline assemblies 30 is set to multiple, the spray portion 31 of each pipeline assembly 30 is arranged at the equally divided point position of the box body along the width direction Z, so that the plurality of spray portions 31 are evenly distributed in the width direction Z. The plurality of spray portions 31 are evenly arranged on at least one side of the battery module 20, so that more fire extinguishing medium can be sprayed, and the fire extinguishing medium can cover the side, upper and lower ends, and front and rear ends of the battery module 20, so that the fire extinguishing medium can be diffused more quickly inside the device, conveniently isolating oxygen, thereby improving the efficiency of fire extinguishing and quickly controlling the fire.

[0058] See also Figure 1 、 Figure 2 and Figure 4In combination with the above embodiments, in some embodiments, the introduction pipe 43 is at least partially located within the housing 10 and connected to the housing 10 and the third pipe 42. The introduction pipe 43 is used to introduce the fire extinguishing medium. When there is only one pipeline assembly 30, the multiple first pipes 311 of the pipeline assembly 30 can be directly connected to the third pipe 42. At the same time, the third pipe 42 is connected to the introduction pipe 43 for inputting the fire extinguishing medium. The introduction pipe 43 is connected to an external container or device for storing the fire extinguishing medium. The fire extinguishing medium enters the third pipe 42 through the introduction pipe 43, then enters the first pipe 311, and is finally released from the corresponding nozzle body 3121 to achieve coverage of the battery module 20. Through the simple pipeline arrangement, the fire extinguishing medium can be quickly transported to the corresponding location, improving the transportation efficiency of the fire extinguishing medium. It is not necessary to connect each first pipe 311 to an external container or device for storing the fire extinguishing medium, saving pipeline materials and reducing costs.

[0059] See also Figure 1 、 Figure 2 and Figure 4 In combination with the above embodiments, in some embodiments, the connection assembly 40 further includes a plurality of second tubes 41 .

[0060] Multiple second tubes 41 are located in the housing 10 and are spaced apart in the length direction X. Each second tube 41 extends along the width direction Z of the housing 10, and the third tube 42 is connected to the pipeline assembly 30 through a second tube 41. When there are multiple pipeline assemblies 30, the multiple first tubes 311 of the multiple pipeline assemblies 30 can be connected to the corresponding second tubes 41 respectively, that is, one second tube 41 can be connected to multiple first tubes 311, the second tube 41 is connected to the third tube 42, and the third tube 42 is connected to the inlet tube 43, so that one second tube 41 can transport the fire extinguishing medium to the multiple first tubes 311. In this case, this arrangement can also improve the efficiency of transporting the fire extinguishing medium to the multiple pipeline assemblies 30, so that the fire extinguishing medium can quickly cover the battery module 20. At the same time, there is no need to connect the multiple pipeline assemblies 30 to the external containers or equipment for storing the fire extinguishing medium, which saves pipeline materials and reduces costs.

[0061] See also Figure 1 In combination with the above embodiments, in some embodiments, the housing 10 has an integrated cavity 13, which is spaced apart from the accommodating cavity 11 along the length direction X of the housing 10. The energy storage device includes a control unit 50, which is disposed within the integrated cavity 13. By providing an integrated cavity 13 within the housing 10, independent of the accommodating cavity 11, the integrated cavity 13 can accommodate the control unit 50. When the control unit 50 is installed within the energy storage device, the control unit 50 can control the liquid cooling pipeline within the energy storage device, thereby facilitating cooling of the batteries within the energy storage device.

[0062] See also Figure 1 In combination with the above embodiments, in some embodiments, the housing 10 has a mounting cavity 14, which is spaced apart from the accommodating cavity 11 along the height direction Y of the housing 10; the energy storage device includes a power unit 60, which is disposed within the mounting cavity 14. By providing a mounting cavity 14 within the housing 10, independent of the accommodating cavity 11, the mounting cavity 14 can accommodate the power unit 60. When the power unit 60 is installed within the energy storage device, the power unit 60 can control the charging and discharging of the battery within the energy storage device, thereby improving the convenience and safety of the charging and discharging operations.

[0063] See also Figure 3 、 Figure 4 and Figure 5 In combination with the above embodiments, in some embodiments, the housing 10 has a plurality of connection holes 12 connected to the interior of the housing 10; the connection assembly 40 includes a plurality of inlet pipes 43, each of which is respectively passed through a connection hole 12 and connected to the housing 10. It is understandable that a plurality of inlet pipes 43 can be provided to connect with a third pipe 42, and a different fire extinguishing medium can be input into the interior of the pipeline assembly 30 through each inlet pipe 43. Different fire extinguishing media can be released through the sprinkler unit 312 at different stages of fire development, thereby improving the efficiency of fire extinguishing. Optionally, two inlet pipes 43 can be provided. When a fire occurs in the device, one of the inlet pipes 43 can be connected to a conventional fire hose, and water can be input into the interior of the connection assembly 40 and the pipeline assembly 30 through an external fire-fighting device to extinguish the fire in the device. If it is necessary to introduce other fire extinguishing media into the interior of the device, another inlet pipe 43 can be connected to other fire extinguishing equipment (other fire extinguishing equipment is equipment that can release fire extinguishing agents such as foam and gas), and the fire extinguishing medium can be input into the connection component 40 and the pipeline component 30 by relying on the pressure of the fire extinguishing agent itself. Compared with the water sprinkler system in the traditional energy storage device that can only use a single water medium, other fire extinguishing systems need to be set up separately. This setting method can carry water, foam and gas fire extinguishing media, and one or more fire extinguishing media can be selected according to actual design requirements. Different fire extinguishing media can be released at different stages of the fire development and can be adjusted according to needs. Moreover, multiple fire extinguishing systems can be set up in combination, which is highly flexible and occupies a small space. When multiple inlet pipes 43 are idle, the connection port of the inlet pipe 43 for connecting the fire hose is sealed by a pipe cap, and the connection ports of the other inlet pipes 43 are blocked by valves to prevent foreign objects from clogging the inlet pipe 43.

[0064] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0065] The energy storage device provided in the embodiments of the present application is introduced in detail above, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage device, characterized in that: include: A box body (10) having a receiving cavity (11); A plurality of battery modules (20) are arranged in the accommodating cavity (11); a pipe assembly (30), at least partially located in the accommodating cavity (11), for spraying a fire extinguishing medium onto the plurality of battery modules (20); The connecting assembly (40) includes a plurality of inlet pipes (43), at least a portion of each inlet pipe (43) is located in the box (10), and each inlet pipe (43) is connected to the pipeline assembly (30), so that the fire extinguishing medium enters the pipeline assembly (30) through the inlet pipe (43).

2. The energy storage device according to claim 1, characterized in that The connecting assembly (40) comprises: The third tube (42) is located in the box (10) and is connected to the pipeline assembly (30). The third tube (42) extends along the length direction (X) of the box (10). The plurality of inlet tubes (43) are all connected to the third tube (42).

3. The energy storage device according to claim 2, characterized in that The connecting assembly (40) further comprises: A plurality of second tubes (41) are located in the box (10) and are spaced apart in the length direction (X), each second tube (41) extending along the width direction (Z) of the box (10), and the third tube (42) is connected to the pipeline assembly (30) via the second tube (41).

4. The energy storage device according to claim 1, characterized in that The plurality of battery modules (20) are arranged at intervals along the length direction (X) of the box (10); the pipe assembly (30) includes a plurality of spray parts (31), the plurality of spray parts (31) are arranged at intervals along the length direction (X) of the box (10), and are connected to the connection assembly (40), and each battery module (20) is provided with the spray part (31) on at least one side in the length direction (X).

5. The energy storage device according to claim 4, characterized in that Each of the spraying parts (31) comprises: a first tube (311), located on one side of the battery module (20) in the length direction (X) and connected to the connecting assembly (40), the first tube (311) extending along the height direction (Y) of the box (10); a plurality of nozzle units (312), the plurality of nozzle units (312) being arranged at intervals along the height direction (Y) and connected to the first tube (311); The height direction (Y) intersects the length direction (X).

6. The energy storage device according to claim 5, characterized in that The nozzle unit (312) includes: A nozzle body (3121), the nozzle body (3121) is located on one side of the first tube (311) in the length direction (X), and is connected to the first tube (311).

7. The energy storage device according to claim 5, characterized in that The nozzle unit (312) includes: a plurality of nozzle bodies (3121), the plurality of nozzle bodies (3121) being arranged at intervals around the first tube (311); in the length direction (X), at least one nozzle body (3121) is connected to the first tube (311); and in the width direction (Z) of the box (10), at least one nozzle body (3121) is connected to the first tube (311); The width direction (Z) intersects with the height direction (Y) and the length direction (X).

8. The energy storage device according to claim 5, characterized in that The battery module (20) includes a plurality of module units (21) arranged along the height direction (Y), and each of the module units (21) is connected to the box (10); Each of the nozzle units (312) is arranged corresponding to one of the module units (21), and each of the nozzle units (312) is located on one side of one of the module units (21) in the length direction (X).

9. The energy storage device according to claim 1, characterized in that The energy storage device comprises a plurality of pipeline assemblies (30), and the plurality of pipeline assemblies (30) are arranged at intervals along the width direction (Z) of the box body (10).

10. The energy storage device according to claim 1, characterized in that The box body (10) has a comprehensive cavity (13), and the comprehensive cavity (13) and the accommodating cavity (11) are arranged at intervals along the length direction (X) of the box body (10); the energy storage device includes a control unit (50), and the control unit (50) is arranged in the comprehensive cavity (13).

11. The energy storage device according to claim 1, characterized in that The box body (10) has an installation cavity (14), and the installation cavity (14) and the accommodating cavity (11) are arranged at intervals along the height direction (Y) of the box body (10); the energy storage device includes a power unit (60), and the power unit (60) is arranged in the installation cavity (14).

Images