Energy storage device

Abstract

The utility model discloses an energy storage device which comprises a box body, a plurality of high-voltage devices, a plurality of battery clusters and a first box door. The multiple high-pressure devices are arranged in the first containing cavity in the third direction. The multiple battery clusters are arranged in the second containing cavity in the third direction, and the multiple battery clusters correspond to the multiple high-voltage devices in a one-to-one mode. The first box door is rotatably arranged on the open side of the box body, and the first box door is opposite to the multiple high-voltage devices and the multiple battery clusters. According to the energy storage device provided by the utility model, when the energy storage devices form an energy storage system, two adjacent energy storage devices can be placed in a back-to-back or side-by-side manner, so that the arrangement modes of a plurality of energy storage devices are more diversified, the energy storage devices can be conveniently placed in a limited space as many as possible, and the energy density of the energy storage system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, in particular to an energy storage device. Background Art

[0002] In the related art, the energy storage device is designed with double-sided doors (i.e., both sides of the energy storage device can be opened). The energy storage device usually includes a box, a battery pack and a high-voltage box. The battery pack is installed in pairs, and the high-voltage box is located at the bottom of the box. However, the energy storage system composed of the above energy storage devices has a large volume due to the layout of the energy storage devices, and the number of energy storage devices is limited, which reduces the energy density of the energy storage system. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose an energy storage device that makes the arrangement of multiple energy storage devices more diversified, which is conducive to placing as many energy storage devices as possible in a limited space, thereby improving the energy density of the energy storage system.

[0004] According to an embodiment of the utility model, the energy storage device includes: a box body, a first partition is provided in the box body, the first partition divides the interior of the box body into a first accommodating chamber and a second accommodating chamber arranged along a first direction, and one side of the box body in the second direction is open; a plurality of high-voltage devices, the plurality of high-voltage devices are arranged in the first accommodating chamber along a third direction, the third direction, the second direction and the first direction are orthogonal to each other; a plurality of battery clusters, the plurality of battery clusters are arranged in the second accommodating chamber along the third direction, and the plurality of battery clusters correspond one-to-one to the plurality of high-voltage devices; a first box door, the first box door is rotatably provided on the open side of the box body, and the first box door is opposite to the plurality of high-voltage devices and the plurality of battery clusters.

[0005] According to the energy storage device of the embodiment of the utility model, multiple high-voltage devices are arranged in the first accommodating chamber along the third direction, multiple battery clusters are arranged in the second accommodating chamber along the third direction, and the first box door is rotatably arranged on the open side of the box body, and the first box door is opposite to the multiple high-voltage devices and the multiple battery clusters. Therefore, when the energy storage device constitutes an energy storage system, two adjacent energy storage devices can be placed back to back or shoulder to shoulder, making the arrangement of multiple energy storage devices more diversified, which is conducive to placing as many energy storage devices as possible in a limited space, thereby improving the energy density of the energy storage system.

[0006] According to some embodiments of the utility model, a confluence device is provided in the first accommodating chamber, the confluence device is electrically connected to the plurality of high-voltage devices, and the confluence device is located on a side of the plurality of high-voltage devices away from the first box door.

[0007] According to some embodiments of the utility model, the box body is formed with an opening on one side of the first direction, the opening is connected to the first accommodating cavity, and the opening is opposite to the confluence device in the first direction; the energy storage device also includes a second box door, which is rotatably arranged at the opening.

[0008] According to some embodiments of the utility model, the box body is formed with an air inlet on the other side of the first direction, an air outlet is formed on the second box door, and an air conditioning device is provided on the side of the second box door adjacent to the confluence device, and the air conditioning device is respectively opposite to the air inlet and the air outlet.

[0009] According to some embodiments of the utility model, a second partition is provided in the first accommodating chamber, and the second partition divides the first accommodating chamber into a first sub-accommodating chamber and a second sub-accommodating chamber. The first sub-accommodating chamber is provided with the confluence device and the multiple high-voltage devices, and the confluence device and the multiple high-voltage devices are arranged along the second direction. The second sub-accommodating chamber is provided with a liquid cooler, and the liquid cooler is located on the side of the high-voltage device away from the battery cluster. The liquid cooler is connected to the multiple battery clusters through a pipeline assembly.

[0010] According to some embodiments of the present invention, each of the battery clusters includes a plurality of battery packs connected in series, and the plurality of battery packs are arranged along the third direction; the pipeline assembly includes a liquid inlet pipe, and the liquid inlet pipe is connected to the liquid outlet of the liquid cooler; a plurality of first sub-pipes, and the plurality of first sub-pipes correspond one-to-one to the plurality of battery packs, one end of each of the first sub-pipes is connected to the liquid inlet pipe, and the other end of each of the first sub-pipes is connected to the liquid inlet of the battery pack; a liquid return pipe, and the liquid return pipe is connected to the liquid inlet of the liquid cooler; a plurality of second sub-pipes, and the plurality of second sub-pipes correspond one-to-one to the plurality of battery packs, one end of each of the second sub-pipes is connected to the liquid return pipe, and the other end of each of the second sub-pipes is connected to the liquid outlet of the battery pack.

[0011] According to some embodiments of the present invention, the energy storage device further includes a fire fighting system, which is disposed in the second accommodating cavity and is located below the battery cluster, and is used for fire fighting inside the box.

[0012] According to some embodiments of the utility model, the fire fighting system includes a fire fighting cabinet, the fire fighting cabinet has a storage tank and a controller, the storage tank is used to store fire fighting materials, and the controller is used to control the storage tank to release the fire fighting materials into the second containing chamber; a sensor, the sensor is arranged in the box body, the sensor is communicatively connected with the controller, and the sensor includes at least one of a CO sensor, an H2 sensor, a temperature sensor and a smoke sensor.

[0013] According to some embodiments of the utility model, the second accommodating cavity includes a third sub-accommodating cavity and multiple fourth sub-accommodating cavities, and the third sub-accommodating cavity is located between the first accommodating cavity and the multiple fourth sub-accommodating cavities; a third partition is provided in the third sub-accommodating cavity, and the third partition separates the third sub-accommodating cavity from a first installation cavity and a second installation cavity arranged along the third direction, and a part of the battery cluster is provided in the first installation cavity; the fire extinguishing cabinet is provided in the second installation cavity.

[0014] According to some embodiments of the utility model, the energy storage device also includes a spray system, which is arranged in the second accommodating chamber, and the spray system includes a main pipe and a plurality of third sub-pipes, the main pipe extends along the first direction, and the plurality of third sub-pipes are all connected to the main pipe, the plurality of third sub-pipes are spaced apart along the first direction, each of the third sub-pipes extends along the third direction, and a nozzle is formed on each of the third sub-pipes.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of an energy storage device according to an embodiment of the utility model, wherein the first box door and the second box door are not shown;

[0018] Figure 2 yes Figure 1 A front view of the energy storage device shown in;

[0019] Figure 3 is a schematic diagram of an energy storage device according to an embodiment of the utility model;

[0020] Figure 4 yes Figure 3 A front view of the energy storage device shown in;

[0021] Figure 5 yes Figure 3 A left side view of the energy storage device shown in;

[0022] Figure 6 yes Figure 3 A right side view of the energy storage device shown in;

[0023] Figure 7 yes Figure 3 A top view of the energy storage device shown in ;

[0024] Figure 8 is a cross-sectional view of a box body of an energy storage device according to an embodiment of the utility model;

[0025] Fig. 9 is a schematic diagram of a pipeline assembly of an energy storage device according to an embodiment of the utility model;

[0026] Fig.10 It is a schematic diagram of a spray system of an energy storage device according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 100: Energy storage device;

[0029] 1: box body; 11: first partition; 12: first accommodating chamber; 121: first sub-accommodating chamber; 122: second sub-accommodating chamber; 13: second accommodating chamber; 131: third sub-accommodating chamber; 1311: first installation chamber; 1312: second installation chamber; 132: fourth sub-accommodating chamber; 14: opening; 15: air inlet; 16: second partition; 161: first connecting section; 162: second connecting section; 17: third partition; 2: high-voltage device; 3: battery cluster; 31: battery pack; 4: first box door; 5: converging device; 6: second door; 61: air outlet; 7: air conditioning device; 8: liquid cooler; 9: pipeline assembly; 91: liquid inlet pipe; 92: first auxiliary pipe; 93: liquid return pipe; 94: second auxiliary pipe; 10: fire protection system; 101: fire protection cabinet; 1011: storage tank; 1012: controller; 102: sensor; 1021: CO sensor; 1022: H2 sensor; 1023: temperature sensor; 1024: smoke sensor; 20: sprinkler system; 201: main pipe; 202: third auxiliary pipe; 203: nozzle. DETAILED DESCRIPTION

[0030] Reference below Figure 1-Figure 10 An energy storage device 100 according to an embodiment of the present invention is described.

[0031] like Figure 1-Figure 10 As shown, the energy storage device 100 according to the embodiment of the present utility model comprises a box body 1, a plurality of high voltage devices 2, a plurality of battery clusters 3 and a first box door 4. In the description of the present utility model, "plurality" means two or more.

[0032] Specifically, a first partition 11 is provided in the box body 1, and the first partition 11 divides the interior of the box body 1 into two parts along a first direction (for example, Figure 1 The first accommodating chamber 12 and the second accommodating chamber 13 are arranged in the left and right directions of the box body 1, and the second direction of the box body 1 (for example, Figure 1 The plurality of high-voltage devices 2 are open along a third direction (for example, Figure 1 The plurality of battery clusters 3 are arranged in the second accommodating chamber 13 along the third direction, and the plurality of battery clusters 3 correspond to the plurality of high-voltage devices 2 one by one. The first box door 4 is rotatably provided on the open side of the box body 1, and the first box door 4 is opposite to the plurality of high-voltage devices 2 and the plurality of battery clusters 3.

[0033] For example, in Figure 1 and Figure 2 In the example, the first partition 11 extends along the third direction in the box body 1 so as to separate the first accommodating chamber 12 and the second accommodating chamber 13, thereby avoiding heat exchange between the high-voltage device 2 and the battery cluster 3 in the first accommodating chamber 12 and the second accommodating chamber 13, thereby ensuring the operating stability of the high-voltage device 2 and the battery cluster 3.

[0034] Among them, ten high-voltage devices 2 can be arranged in the first accommodating chamber 12, and the ten high-voltage devices 2 are neatly arranged in the first accommodating chamber 12 along the third direction. Correspondingly, ten battery clusters 3 are arranged in the second accommodating chamber 13, and the ten battery clusters 3 are neatly arranged in the second accommodating chamber 13 along the third direction, so that the high-voltage device 2 can accurately detect the corresponding battery clusters 3. At the same time, the space of the first accommodating chamber 12 and the second accommodating chamber 13 is utilized to make the structure of the energy storage device 100 more compact.

[0035] Six first box doors 4 may be provided on the open side of the box body 1, one of the six first box doors 4 is opposite to the high-voltage device 2, and the other first box doors 4 are opposite to the battery cluster 3. When the first box door 4 is opened, the user can install the high-voltage device 2 and / or the battery cluster 3 into the box body 1 through the open side of the box body 1, or the user can maintain the high-voltage device 2 and / or the battery cluster 3 in the box body 1 through the open side of the box body 1; when the first box door 4 is closed, the first box door 4 and the box body 1 cooperate to protect the high-voltage device 2 and the battery cluster 3 in the box body 1, prevent external fluid or dust from entering the box body 1 to affect the operation of the high-voltage device 2 and the battery cluster 3, and ensure the use safety and operation stability of the high-voltage device 2 and the battery cluster 3.

[0036] When the energy storage devices 100 form an energy storage system, the sides of the boxes 1 of two adjacent energy storage devices 100 away from the open side can be opposite to each other, so that the two adjacent energy storage devices 100 are placed back to back; or, the two adjacent energy storage devices 100 are placed along the third direction, and the open sides of the boxes 1 of the two adjacent energy storage devices 100 are located on the same side of the first direction, and the two adjacent energy storage devices 100 are placed shoulder to shoulder. In this way, the arrangement of multiple energy storage devices 100 is more diversified, which is conducive to placing as many energy storage devices 100 as possible in a limited space, thereby improving the energy density of the energy storage system.

[0037] According to the energy storage device 100 of the embodiment of the utility model, multiple high-voltage devices 2 are arranged in the first accommodating chamber 12 along the third direction, multiple battery clusters 3 are arranged in the second accommodating chamber 13 along the third direction, and the first box door 4 is rotatably arranged on the open side of the box body 1, and the first box door 4 is opposite to the multiple high-voltage devices 2 and the multiple battery clusters 3. Therefore, when the energy storage device 100 constitutes an energy storage system, two adjacent energy storage devices 100 can be placed back to back or shoulder to shoulder, making the arrangement of multiple energy storage devices 100 more diversified, which is conducive to placing as many energy storage devices 100 as possible in a limited space, thereby improving the energy density of the energy storage system.

[0038] According to some embodiments of the present invention, referring to Figure 1 A confluence device 5 is provided in the first accommodating chamber 12, and the confluence device 5 is electrically connected to the plurality of high-voltage devices 2. The confluence device 5 has a confluence function and can be used to collect the current of the battery cluster 3. Each high-voltage device 2 is connected to the corresponding battery cluster 3 to form a circuit. The confluence device 5 can cut off the corresponding circuit when maintaining the high-voltage device 2 and the battery cluster 3, so as to reduce the scope of power failure and avoid power failure of the entire energy storage device 100.

[0039] The confluence device 5 may be located on a side of the plurality of high-voltage devices 2 away from the first door 4 to avoid interference of the confluence device 5 with maintenance of the plurality of high-voltage devices 2 , thereby improving maintenance efficiency of the high-voltage devices 2 .

[0040] Further, refer to Figure 1 and Figure 3 , an opening 14 is formed on one side of the box body 1 in the first direction, the opening 14 is connected to the first accommodating chamber 12, and the opening 14 is opposite to the convergence device 5 in the first direction. The energy storage device 100 also includes a second box door 6, which is rotatably arranged at the opening 14. Therefore, when the second box door 6 is closed, the second box door 6 protects the convergence device 5 to prevent external fluid or dust from entering the box body 1 and affecting the operation of the convergence device 5, thereby improving the safety of use and the stability of operation of the convergence device 5. When the second box door 6 is opened, the convergence device 5 is exposed at the opening 14, which is convenient for the user to operate the convergence device 5 to control the disconnection and connection of multiple circuits formed by multiple high-voltage devices 2 and multiple battery clusters 3.

[0041] Furthermore, refer to Figure 5 and Figure 6An air inlet 15 is formed on the other side of the box body 1 in the first direction, and an air outlet 61 is formed on the second box door 6. An air conditioning device 7 is provided on the side of the second box door 6 adjacent to the confluence device 5, and the air conditioning device 7 is respectively opposite to the air inlet 15 and the air outlet 61. Specifically, when the air conditioning device 7 is working, the air flow enters along the air inlet 15, flows from the second accommodating chamber 13 to the first accommodating chamber 12, and then flows out along the air outlet 61. Among them, during the flow of the air flow in the box body 1, the heat generated by the confluence device 5, the high-voltage device 2 and the battery cluster 3 during operation can be exchanged with the heat, so as to reduce the temperature of the confluence device 5, the high-voltage device 2 and the battery cluster 3, thereby improving the operation stability of the confluence device 5, the high-voltage device 2 and the battery cluster 3.

[0042] According to some embodiments of the present invention, referring to Figure 2 , a second partition 16 is provided in the first accommodation chamber 12, and the second partition 16 divides the first accommodation chamber 12 into a first sub-accommodation chamber 121 and a second sub-accommodation chamber 122. A confluence device 5 and a plurality of high-voltage devices 2 are provided in the first sub-accommodation chamber 121, and the confluence device 5 and the plurality of high-voltage devices 2 are arranged along the second direction. A liquid cooler 8 is provided in the second sub-accommodation chamber 122, and the liquid cooler 8 is located on the side of the high-voltage device 2 away from the battery cluster 3, and the liquid cooler 8 is connected to the plurality of battery clusters 3 through the pipeline assembly 9. Thus, the confluence device 5 and the plurality of high-voltage devices 2 are separated from the liquid cooler 8 by the second partition 16, so as to avoid leakage of the coolant in the liquid cooler 8 and electrical failure of the confluence device 5 or the high-voltage device 2.

[0043] Among them, refer to Figure 8 The cross-section of the second partition 16 is roughly L-shaped. The second partition 16 includes a first connecting segment 161 and a second connecting segment 162 connected to each other. The first connecting segment 161 extends along the first direction, and the second connecting segment 162 extends along the second direction. The first connecting segment 161 and the second connecting segment 162 are respectively connected to the inner wall of the box body 1, so that the second partition 16 and the inner wall of the box body 1 jointly define a second sub-accommodation chamber 122, and the second partition 16, the first partition 11 and the inner wall of the box body 1 jointly define a first sub-accommodation chamber 121. The high-pressure device 2 is arranged adjacent to the liquid cooler 8 in the first direction, so that a relatively large confluence device 5 is arranged in the first sub-accommodation chamber 121, so that the structure of the box body 1 is more compact.

[0044] After the coolant flows out of the liquid cooler 8, it flows along the pipeline assembly 9 to the multiple battery clusters 3 to cool the multiple battery clusters 3. By locating the liquid cooler 8 on the side of the high-voltage device 2 away from the battery cluster 3, the distance between the battery cluster 3 and the liquid cooler 8 can be increased, thereby preventing the liquid cooler 8 from leaking and damaging the battery pack 31.

[0045] In the energy storage device 100 , the temperature of the battery pack 31 can be regulated by the liquid cooler 8 and the air conditioning device 7 at the same time, and the temperature inside the box 1 can also be controlled to ensure that the energy storage device 100 operates within the optimal temperature range, thereby improving the operating stability of the energy storage device 100 .

[0046] Further, refer to Figure 1 Each battery cluster 3 includes a plurality of battery packs 31 connected in series, and the plurality of battery packs 31 are arranged along the third direction. For example, two adjacent battery packs 31 are connected in series by sequentially connecting the positive and negative electrodes. The connection stability of the two adjacent battery packs 31 is increased under the action of gravity, which is beneficial to improving the electrical connection stability of each battery cluster 3, thereby improving the operation stability of the energy storage device 100.

[0047] Among them, the pipeline assembly 9 includes a liquid inlet pipe 91, a plurality of first sub-pipes 92, a liquid return pipe 93 and a plurality of second sub-pipes 94. The liquid inlet pipe 91 is connected to the liquid outlet of the liquid cooler. The plurality of first sub-pipes 92 correspond one-to-one to the plurality of battery packs 31, one end of each first sub-pipe 92 is connected to the liquid inlet of the battery pack, and the other end of each first sub-pipe 92 is connected to the liquid inlet of the battery pack. The liquid return pipe 93 is connected to the liquid inlet of the liquid cooler. The plurality of second sub-pipes 94 correspond one-to-one to the plurality of battery packs 31, one end of each second sub-pipe 94 is connected to the liquid return pipe 93, and the other end of each second sub-pipe 94 is connected to the liquid outlet of the battery pack.

[0048] like Fig. 9 As shown, eight first sub-tubes 92 are connected to the liquid inlet tube 91 along the axial direction thereof, and the eight first sub-tubes 92 can respectively correspond to the liquid inlets of the battery pack 31 at different heights. Eight second sub-tubes 94 are connected to the liquid return tube 93 along the axial direction thereof, and the eight second sub-tubes 94 can respectively correspond to the liquid outlets of the battery pack at different heights.

[0049] The coolant in the liquid cooler 8 enters the liquid inlet pipe 91, flows along the liquid inlet pipe 91 and enters the eight first sub-pipes 92, and then flows into different battery packs 31 through the liquid inlet of the battery pack 31. After heat exchange with the battery pack 31, the coolant with higher temperature flows out from the battery pack outlet to the eight second sub-pipes 94, and then converges to the return liquid pipe 93, and then enters the liquid inlet of the liquid cooler to re-cool.

[0050] As a result, the temperature of the coolant flowing to different battery packs 31 is basically the same, so that the heat exchange efficiency of different battery packs 31 is basically the same, thereby ensuring the consistency of the temperature of different battery packs 31, greatly reducing the temperature difference between different battery packs 31, and further reducing the difference in charging and discharging of the battery cluster 3, thereby improving the discharge stability of the battery cluster 3.

[0051] Optionally, the pipeline assembly 9 may be arranged at a position adjacent to the open side of the housing 1 , so that when the energy storage device 100 constitutes an energy storage system, it is convenient to inspect the pipeline assembly 9 through the first housing door 4 .

[0052] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The energy storage device 100 further includes a fire fighting system 10, which is disposed in the second accommodating cavity 13 and is located below the battery cluster 3, and is used to fight fire inside the box body 1. The fire fighting system 10 complies with the fire fighting system design of domestic fire fighting regulations. The fire fighting system 10 can be used to fight fire inside the box body 1, so as to quickly cool down the multiple high-voltage devices 2 and / or battery clusters 3 that are in thermal runaway, and ensure the safety of the energy storage device 100.

[0053] Further, refer to Figure 1 and Figure 2 The fire fighting system 10 includes a fire fighting cabinet 101 and a sensor 102. The fire fighting cabinet 101 has a storage tank 1011 and a controller 1012. The storage tank 1011 is used to store fire fighting materials. The controller 1012 is used to control the storage tank 1011 to put the fire fighting materials into the second receiving chamber 13. The sensor 102 is arranged in the box body 1. The sensor 102 is connected to the controller 1012 for communication. The sensor 102 includes at least one of a CO sensor 1021, a H2 sensor 1022, a temperature sensor 1023 and a smoke sensor 1024.

[0054] The firefighting material in the storage tank 1011 may be a coolant, a firefighting gas or a dry powder. Since CO, H2 and smoke all move toward the top of the box 1, the CO sensor 1021, the H2 sensor 1022 and the smoke sensor 1024 are all arranged at the top of the box 1, which is convenient for the use of the CO sensor 1021, the H2 sensor 1022 and the smoke sensor 1024. The temperature sensor 1023 is also suitable for being installed at the top of the box 1 to avoid interference with the internal components of the box 1.

[0055] During use, the sensor 102 detects the values ​​of CO, H2, smoke or temperature in the box 1, and transmits the above values ​​to the controller 1012. When the controller 1012 determines that the CO, H2, smoke or temperature in the box 1 is within the standard range, the controller 1012 controls the storage tank 1011 not to open, that is, the storage tank 1011 does not put fire-fighting materials into the second accommodating chamber 13, and the battery works normally at this time; when the controller 1012 determines that the CO, H2, smoke or temperature in the box 1 is out of the standard range, the battery pack 31 is thermally runaway, and the controller 1012 controls the storage tank 1011 to put fire-fighting materials into the second accommodating chamber 13 to extinguish the fire inside the box 1, thereby ensuring the safety of the energy storage device 100.

[0056] According to some specific embodiments of the present invention, Figure 2 The second accommodating chamber 13 includes a third sub-accommodating chamber 131 and a plurality of fourth sub-accommodating chambers 132. The third sub-accommodating chamber 131 is located between the first accommodating chamber 12 and the plurality of fourth sub-accommodating chambers 132. A third partition 17 is provided in the third sub-accommodating chamber 131. The third partition 17 separates the third sub-accommodating chamber 131 from a first installation chamber 1311 and a second installation chamber 1312 arranged along a third direction. A portion of the battery cluster 3 is provided in the first installation chamber 1311, and a fire cabinet 101 is provided in the second installation chamber 1312.

[0057] For example, seven fourth sub-accommodating chambers 132 are provided in the energy storage device 100, and a plurality of battery packs 31 are provided in each fourth sub-accommodating chamber 132. In addition, a part of the battery cluster 3 is provided in the first installation chamber 1311, and a fire cabinet 101 is provided in the second installation chamber 1312, so as to fully utilize the space in the third sub-accommodating chamber 131, thereby further increasing the structural compactness of the energy storage device 100.

[0058] According to some embodiments of the present invention, referring to Fig.10 The energy storage device 100 also includes a spray system 20, which is arranged in the second accommodating chamber 13. The spray system 20 includes a main pipe 201 and a plurality of third sub-pipes 202. The main pipe 201 extends along a first direction, and the plurality of third sub-pipes 202 are all connected to the main pipe 201. The plurality of third sub-pipes 202 are spaced apart along the first direction, and each third sub-pipe 202 extends along a third direction. A nozzle 203 is formed on each third sub-pipe 202.

[0059] For example, eight third sub-pipes 202 are connected to the main pipe 201 in the axial direction, and the eight third sub-pipes 202 can correspond to battery packs 31 of different heights respectively. One end of each third sub-pipe 202 is connected to the main pipe 201, and the other end of each third sub-pipe 202 extends in a direction away from the main pipe 201. Six nozzles 203 are formed on each third sub-pipe 202, so as to spray as much firefighting material in the third sub-pipe 202 as possible to the battery pack 31 with thermal runaway, so as to achieve rapid cooling of the battery pack 31 with thermal runaway, and at the same time increase the coverage area of ​​the third sub-pipe 202 on the battery pack 31, thereby increasing the coverage range of the spray system 20, so that the spray system 20 can cover all battery packs 31 in the box 1.

[0060] Other structures and operations of the energy storage device 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0061] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An energy storage device, characterized in that: include: A box body, wherein a first partition is disposed in the box body, wherein the first partition divides the interior of the box body into a first accommodating cavity and a second accommodating cavity arranged along a first direction, and one side of the box body in the second direction is open; A plurality of high-voltage devices, wherein the plurality of high-voltage devices are arranged in the first accommodating chamber along a third direction, wherein the third direction, the second direction and the first direction are orthogonal to each other; A plurality of battery clusters, wherein the plurality of battery clusters are arranged in the second accommodating cavity along the third direction, and the plurality of battery clusters correspond one-to-one to the plurality of high-voltage devices; A first door is rotatably disposed on an open side of the box body, and the first door is opposite to the plurality of high-voltage devices and the plurality of battery clusters.

2. The energy storage device according to claim 1, characterized in that: A confluence device is provided in the first accommodating chamber, the confluence device is electrically connected to the plurality of high-voltage devices, and the confluence device is located on a side of the plurality of high-voltage devices away from the first box door.

3. The energy storage device according to claim 2, characterized in that: The box body is formed with an opening on one side of the first direction, the opening is communicated with the first accommodating cavity, and the opening is opposite to the confluence device in the first direction; The energy storage device also includes: A second door is rotatably disposed at the opening.

4. The energy storage device according to claim 3, characterized in that: The box body is formed with an air inlet on the other side of the first direction, and an air outlet is formed on the second box door. An air conditioning device is provided on one side of the second box door adjacent to the confluence device, and the air conditioning device is respectively opposite to the air inlet and the air outlet.

5. The energy storage device according to claim 3, characterized in that: A second partition is provided in the first accommodating chamber, and the second partition divides the first accommodating chamber into a first sub-accommodating chamber and a second sub-accommodating chamber. The first sub-accommodating chamber is provided with the confluence device and the multiple high-pressure devices, and the confluence device and the multiple high-pressure devices are arranged along the second direction. The second sub-accommodating chamber is provided with a liquid cooler, and the liquid cooler is located on the side of the high-pressure device away from the battery cluster. The liquid cooler is connected to the multiple battery clusters through a pipeline assembly.

6. The energy storage device according to claim 5, characterized in that: Each of the battery clusters includes a plurality of battery packs connected in series, and the plurality of battery packs are arranged along the third direction; The pipeline assembly comprises: A liquid inlet pipe, the liquid inlet pipe is connected to a liquid outlet of the liquid cooler; A plurality of first auxiliary pipes, wherein the plurality of first auxiliary pipes correspond to the plurality of battery packs one by one, one end of each of the first auxiliary pipes is connected to the liquid inlet pipe, and the other end of each of the first auxiliary pipes is connected to the liquid inlet of the battery pack; A liquid return pipe, the liquid return pipe being connected to a liquid inlet of the liquid cooler; A plurality of second sub-pipes, wherein the plurality of second sub-pipes correspond one-to-one to the plurality of battery packs, one end of each of the second sub-pipes is connected to the liquid return pipe, and the other end of each of the second sub-pipes is connected to the liquid outlet of the battery pack.

7. The energy storage device according to any one of claims 1 to 6, characterized in that: Also includes: A fire fighting system is provided in the second accommodating cavity, and the fire fighting system is located below the battery cluster, and is used for fire fighting inside the box.

8. The energy storage device according to claim 7, characterized in that: The fire protection system comprises: A fire-fighting cabinet, the fire-fighting cabinet having a storage tank and a controller, the storage tank being used to store fire-fighting materials, and the controller being used to control the storage tank to put the fire-fighting materials into the second containing chamber; A sensor is disposed in the box, the sensor is communicatively connected with the controller, and the sensor includes at least one of a CO sensor, a H2 sensor, a temperature sensor, and a smoke sensor.

9. The energy storage device according to claim 8, characterized in that: The second accommodating chamber includes a third sub-accommodating chamber and a plurality of fourth sub-accommodating chambers, and the third sub-accommodating chamber is located between the first accommodating chamber and the plurality of fourth sub-accommodating chambers; A third partition is provided in the third sub-accommodating chamber, and the third partition separates the third sub-accommodating chamber into a first installation chamber and a second installation chamber arranged along the third direction. A part of the battery cluster is provided in the first installation chamber; and the fire cabinet is provided in the second installation chamber.

10. The energy storage device according to any one of claims 1 to 6, characterized in that: Also includes: A spray system, wherein the spray system is arranged in the second accommodating chamber, and the spray system includes a main pipe and a plurality of third sub-pipes, wherein the main pipe extends along the first direction, and the plurality of third sub-pipes are all connected to the main pipe, and the plurality of third sub-pipes are spaced apart along the first direction, and each of the third sub-pipes extends along the third direction, and each of the third sub-pipes is formed with a nozzle.

Images