Energy storage device and energy storage system

Abstract

The utility model discloses energy storage equipment and an energy storage system, the energy storage equipment comprises a support frame, a battery cabinet and a gas fire-fighting assembly, and the battery cabinet is arranged on the support frame; the gas fire-fighting assembly comprises a gas pipeline, at least part of the gas pipeline is arranged between the bottom of the supporting frame and the battery cabinet, the gas pipeline extends into the battery cabinet, and the gas fire-fighting assembly is used for performing gas fire-fighting on the battery cabinet. The gas pipeline of the gas fire-fighting assembly is at least partially arranged between the bottom of the support frame and the battery cabinet, extends into the battery cabinet and is not arranged at the top of the battery cabinet any more, so that the space occupation of the support frame in the height direction is reduced, and the gas fire-fighting assembly can be arranged in a limited space.

Description

Technical Field

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

[0002] When the energy storage equipment is running, abnormalities may occur, and corresponding fire-fighting facilities need to be set up. Currently, fire-fighting facilities are set up on the top of the energy storage equipment, resulting in a large space occupied in the height direction, which is not conducive to layout in a limited space. Utility Model Content

[0003] The utility model aims to provide an energy storage device and an energy storage system to solve the problem of arranging fire-fighting facilities in a limited space.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides an energy storage device, comprising: a support frame; a battery cabinet, which is arranged on the support frame; a gas fire-fighting component, comprising a gas pipeline, wherein the gas pipeline is at least partially arranged between the bottom of the support frame and the battery cabinet, and the gas pipeline extends into the interior of the battery cabinet, and the gas fire-fighting component is used to perform gas fire-fighting on the battery cabinet.

[0006] In one embodiment, the support frame includes: a frame body and a base plate, the base plate is arranged at the bottom of the frame body, the battery cabinet is arranged on the frame body, there is a receiving space between the battery cabinet and the base plate, and the gas pipeline is at least partially received in the receiving space.

[0007] In one embodiment, the bottom plate is provided with a water leakage hole.

[0008] In one embodiment, the frame includes a main beam, the bottom plate is arranged at the bottom of the main beam, and the battery cabinet is arranged on the main beam; the gas pipeline includes a main pipeline and a branch pipeline, the main pipeline is connected to the main beam and extends along the main beam, one end of the branch pipeline is connected to the main pipeline, and the branch pipeline is at least partially located in the accommodation space, and the other end of the branch pipeline extends into the battery cabinet from the bottom of the battery cabinet.

[0009] In one embodiment, a wire passing cover is provided at the bottom of the battery cabinet, and a wire passing hole is provided on the wire passing cover, and the branch pipeline is passed through the wire passing hole.

[0010] In one embodiment, there are multiple branch pipelines, and the multiple branch pipelines are arranged at intervals along the extension direction of the main pipeline.

[0011] In one embodiment, the main beam is provided with a through hole, the main beam divides the receiving space into a first space and a second space, the through hole connects the first space and the second space, the main pipeline is arranged in the first space, at least one branch pipeline extends into the battery cabinet at the first space, and at least one branch pipeline passes through the through hole and extends into the battery cabinet at the second space.

[0012] In one embodiment, the diameter of the through hole is A, and the width of the main beam is B, satisfying: A / B≤1 / 3.

[0013] In one embodiment, there are multiple battery cabinets, and the multiple branch pipelines extend into the multiple battery cabinets one by one.

[0014] In one embodiment, the branch pipeline extends from the bottom of the battery cabinet to the top of the battery cabinet.

[0015] In one embodiment, a nozzle is provided on the top of the battery cabinet, and the branch pipeline is connected to the nozzle.

[0016] In one embodiment, a liquid cooling pipe is provided in the battery cabinet, and at least a portion of the branch pipeline is arranged side by side with the liquid cooling pipe.

[0017] In one embodiment, the gas fire fighting assembly further includes a fire fighting bottle and an input pipe, wherein the fire fighting bottle is arranged on a side of the support frame away from the battery cabinet or inside the battery cabinet, and the input pipe connects the fire fighting bottle and the main line.

[0018] In one embodiment, the frame further includes a crossbeam, the crossbeam is connected to one end of the main beam, the crossbeam is provided with a pipe hole, and the input pipe is passed through the pipe hole.

[0019] In one embodiment, a sensor is provided in the battery cabinet, and the sensor is used to detect whether the thermal management of the battery cabinet is abnormal.

[0020] In one embodiment, the energy storage device further includes a liquid fire fighting component, and the liquid fire fighting component is disposed on the top of the battery cabinet and is used for performing liquid fire fighting on the battery cabinet.

[0021] In a second aspect, the utility model further provides an energy storage system, comprising a plurality of energy storage devices described in any one of the various implementations of the first aspect, wherein the plurality of energy storage devices are electrically connected.

[0022] By arranging the gas pipeline of the gas fire fighting assembly to be at least partially arranged between the bottom of the support frame and the battery cabinet and extending into the battery cabinet, instead of being arranged on the top of the battery cabinet, the space occupied in the height direction of the support frame is reduced and it can be arranged in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a three-dimensional diagram of an energy storage device according to an embodiment;

[0025] Figure 2 is a three-dimensional diagram of a support frame and a gas fire-fighting assembly of an embodiment and a partial enlarged diagram of two parts thereof;

[0026] Figure 3 is a top view of a support frame of an embodiment;

[0027] Figure 4 is a side view of a support frame and a gas firefighting assembly of one embodiment;

[0028] Figure 5 is a three-dimensional diagram of a battery cabinet of an embodiment, which omits some structures;

[0029] Figure 6 It is a three-dimensional diagram of a battery cabinet of an embodiment from another perspective, which omits another part of the structure.

[0030] Description of reference numerals:

[0031] 10-support frame, 101-first space, 102-second space, 103-through hole, 104-tube hole, 11-frame, 111-main beam, 112-first side beam, 113-second side beam, 114-first cross beam, 115-second cross beam, 116-column, 117-connecting beam, 12-bottom plate, 121-leakage hole, 13-cover plate;

[0032] 20-gas fire fighting assembly, 21-fire fighting bottle, 22-inlet pipe, 23-transfer pipe, 24-main pipe, 25-branch pipe, 26-tee, 27-fire fighting bracket, 28-sprinkler, 29-sensor;

[0033] 30-battery cabinet, 31-cabinet body, 32-battery module, 33-wire cover plate, 331-wire hole, 34-liquid cooling pipe;

[0034] 40-Liquid fire fighting components. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0037] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0038] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0039] Please refer to Figure 1 An embodiment of the utility model provides an energy storage device, including a support frame 10, a battery cabinet 30 and a gas fire fighting assembly 20.

[0040] refer to Figure 1 and Figure 2 The support frame 10 may be a frame structure, which may include beams, columns and other structures, and is used as a support base for the battery cabinet 30 and the gas fire fighting assembly 20. The support frame 10 may be arranged on a support surface such as the ground that is closer to the center of the earth than the energy storage device, and the support frame 10 has a bottom and a top facing each other, and the bottom faces one side of the support surface.

[0041] The battery cabinet 30 is disposed on the support frame 10. The battery cabinet 30 may be one or more. When there are multiple battery cabinets 30, they may be arranged in a matrix on the support frame 10. Figure 5 and Figure 6 The battery cabinet 30 may include a cabinet body 31 and one or more battery modules 32 disposed in the cabinet body 31 . When there are multiple battery modules 32 , they may be stacked in the cabinet body 31 .

[0042] refer to Figure 1 and Figure 2 The gas fire fighting assembly 20 includes a gas pipeline, which is at least partially arranged between the bottom of the support frame 10 and the battery cabinet 30, and the gas pipeline extends into the battery cabinet 30. The gas fire fighting assembly 20 is used to perform gas fire fighting on the battery cabinet 30.

[0043] The gas fire fighting component 20 is used to supply gas to the battery cabinet 30 to extinguish abnormal battery modules 32. The gas can be a low-temperature, fire-extinguishing gaseous medium such as carbon dioxide, nitrogen, gas foam, etc., without limitation. The gas fire fighting component 20 supplies gas using a gas pipeline for transportation, at least part of which is located at the bottom of the support frame 10 and extends into the battery cabinet 30. Among them, the gas pipeline can extend into the battery cabinet 30 at the bottom of the battery cabinet 30, and can also extend into the battery cabinet 30 at the side of the battery cabinet 30, but not into the battery cabinet 30 at the top of the battery cabinet 30. The bottom of the battery cabinet 30 faces the support surface, the top faces away from the support surface relative to the bottom, and the side is connected between the bottom and the side.

[0044] At present, conventional gas fire fighting facilities are arranged on the top of the support frame 10, occupying a large space in the height direction, making it difficult to arrange in a limited space, and it is also not conducive to the arrangement of the energy storage system with multiple layers of battery cabinets 30 in the height direction.

[0045] In the embodiment of the utility model, the gas pipeline of the gas fire-fighting assembly 20 is at least partially arranged between the bottom of the support frame 10 and the battery cabinet 30, and extends into the battery cabinet 30, and is no longer arranged on the top of the battery cabinet 30, thereby reducing the space occupied in the height direction of the support frame 10, allowing it to be arranged in a limited space, and also facilitating the arrangement of the energy storage system of the multi-layer battery cabinet 30.

[0046] In one embodiment, reference Figure 2 The support frame 10 includes a frame body 11 and a base plate 12. The base plate 12 is arranged at the bottom of the frame body 11. The battery cabinet 30 is arranged on the frame body 11. There is a receiving space between the battery cabinet 30 and the base plate 12 (refer to the first space 101 and the second space 102, the same below), and the gas pipeline is at least partially received in the receiving space.

[0047] The frame 11 may be a frame structure, which includes a bottom portion close to the support surface, and the bottom plate 12 is arranged at the bottom of the frame 11. The frame 11 has a thickness in the height direction, that is, the bottom plate 12 may be arranged at the bottom end surface of the frame 11 in contact with the support surface, or may be at a certain distance from the bottom end surface without contacting the support surface, and the battery cabinet 30 is arranged on the frame 11 and has a spacing with the bottom plate 12 to form a receiving space, that is, a sandwich is formed between the battery cabinet 30 and the bottom plate 12, and the sandwich is used to arrange the gas pipeline. In this way, the receiving space of the bottom plate 12 and the battery cabinet 30 is effectively utilized to arrange the gas pipeline, saving space in the height direction.

[0048] Optional, reference Figure 2 and Figure 3 The bottom plate 12 is provided with a water leakage hole 121. When the energy storage device is set outdoors or a liquid fire fighting facility is also provided, when rainwater or liquid sprayed by the liquid fire fighting facility sprays onto the battery cabinet 30 and flows down to the bottom plate 12, water can be leaked through the water leakage hole 121 of the bottom plate 12 to avoid water accumulation. There can be multiple water leakage holes 121 that are evenly distributed.

[0049] Optional, reference Figure 2 and Figure 3 The frame 11 includes a main beam 111, a bottom plate 12 is arranged at the bottom of the main beam 111, and a battery cabinet 30 is arranged on the main beam 111. The frame 11 may also include a first side beam 112, a second side beam 113, a first cross beam 114, a second cross beam 115 and a plurality of columns 116. The first side beam 112 and the second side beam 113 are arranged opposite to each other, the main beam 111 is located between the first side beam 112 and the second side beam 113 and the three are substantially parallel to each other, the first cross beam 114 is connected to the first side beam 112, the second side beam 113 and one end of the main beam 111, the second cross beam 115 is connected to the first side beam 112, the second side beam 113 and one end of the main beam 111 away from the first cross beam 114, and one end of the plurality of columns 116 is connected to the first side beam 112 and the second side beam 113 to form a frame structure. The frame 11 may further include a plurality of connecting beams 117 , and the plurality of connecting beams 117 may be connected to the columns 116 , so that the frame 11 forms a stable frame structure.

[0050] There may be multiple bottom plates 12, some of which are connected to the first side beam 112 and the main beam 111, and other bottom plates 12 are connected to the second side beam 113 and the main beam 111. The battery cabinet 30 is arranged on the main beam 111, the first side beam 112 and the second side beam 113. The bottom plate 12 is connected to the bottom end surface of the main beam 111 facing the support surface or the side surface facing the first side beam 112 or the second side beam 113, but not to the top surface of the main beam 111 (i.e., the surface opposite to the bottom end surface of the main beam 111). The top surface of the main beam 111 is used to set the battery cabinet 30, so that a receiving space can be formed between the bottom plate 12 and the battery cabinet 30.

[0051] The gas pipeline includes a main pipeline 24 and a branch pipeline 25. The main pipeline 24 is connected to the main beam 111 and extends along the main beam 111. One end of the branch pipeline 25 is connected to the main pipeline 24, and the branch pipeline 25 is at least partially located in the accommodation space. The other end of the branch pipeline 25 extends into the battery cabinet 30 from the bottom of the battery cabinet 30.

[0052] The main pipeline 24 can be connected to the inside of the main beam 111, the side of the main beam 111 facing the first side beam 112 or the second side beam 113, etc. The main pipeline 24 can be connected and fixed to the main beam 111 through a structure such as a pipe rack, and the main pipeline 24 can be a hard pipe such as a stainless steel pipe. One end of the branch pipeline 25 is connected to the main pipeline 24, and the connection between the main pipeline 24 and the branch pipeline 25 can be achieved by setting a tee 26, and the branch pipeline 25 can be a plastic hose.

[0053] refer to Figure 2 and Figure 5 A wire-passing cover plate 33 is provided at the bottom of the battery cabinet 30 . The wire-passing cover plate 33 is provided with a wire-passing hole 331 , and the branch pipeline 25 is passed through the wire-passing hole 331 .

[0054] The wire-passing hole 331 connects the interior and exterior of the battery cabinet 30. After the battery cabinet 30 is set on the main beam 111, the wire-passing hole 331 connects the interior of the battery cabinet 30 and the aforementioned receiving space. The branch pipeline 25 extends from the receiving space into the interior of the battery cabinet 30 through the wire-passing hole 331, thereby delivering gas to the interior of the battery cabinet 30 and achieving the purpose of gas fire fighting. The method of setting a wire-passing cover plate 33 at the bottom of the battery cabinet 30 and passing the branch pipeline 25 through it has a simple structure. There can be multiple wire-passing holes 331 opened on the wire-passing cover plate 33, and the receiving space formed between the battery cabinet 30 and the bottom plate 12 can also be used to arrange cables, other pipelines, etc., one of which is used to pass the branch pipeline 25, and the other wire-passing holes 331 can also pass cables, other pipelines, etc., thereby realizing the arrangement of cables and pipelines between the inside and outside of the battery cabinet 30, and the structure is simple.

[0055] Optional, reference Figure 2 and Figure 3There are multiple branch pipelines 25, and the multiple branch pipelines 25 are arranged at intervals along the extending direction of the main pipeline 24.

[0056] There are multiple battery cabinets 30, and the multiple battery cabinets 30 are arranged in sequence along the extension direction of the main beam 111. The number of branch pipelines 25 is the same as the number of battery cabinets 30, and they extend into each battery cabinet 30 one by one. In this way, multiple branch pipelines 25 are connected through one main pipeline 24, so that one main pipeline 24 supplies gas to multiple battery cabinets 30 for fire fighting, which saves pipelines compared to setting multiple independent pipelines.

[0057] Optional, reference Figure 2 The main beam 111 is provided with a through hole 103, and the main beam 111 divides the receiving space into a first space 101 and a second space 102. The through hole 103 connects the first space 101 and the second space 102. The main pipeline 24 is arranged in the first space 101, and at least one branch pipeline 25 extends into the battery cabinet 30 at the first space 101. At least one branch pipeline 25 is penetrated through the through hole 103 and extends into the battery cabinet 30 at the second space 102.

[0058] The through hole 103 penetrates the two side surfaces of the main beam 111 toward the first side beam 112 and toward the second side beam 113, and the main pipeline 24 is arranged on the side surface of the main beam 111. The branch pipeline 25 arranged in the first space 101 does not need to pass through the through hole 103, while the branch pipeline 25 arranged in the second space 102 passes through the through hole 103 and is connected to the main pipeline 24. By providing the through hole 103 on the main beam 111, the branch pipeline 25 can be arranged in the first space 101 and the second space 102, which has a simple structure and is easy to implement.

[0059] Optional, reference Figure 2 , the aperture of the through hole 103 is A, and the width of the main beam 111 is B, satisfying: A / B≤1 / 3. Among them, the through hole 103 can be a circular hole or a waist-shaped hole. When the through hole 103 is a circular hole, its aperture is the diameter. When the through hole 103 is a waist-shaped hole, the length direction of the waist-shaped hole is the length direction of the main beam 111, and the height direction of the waist-shaped hole is the height direction of the main beam 111, then its aperture refers to the size of the waist-shaped hole in the height direction. Satisfying A / B≤1 / 3, on the basis of meeting the requirements for the routing of the branch pipeline 25, the structural damage to the main beam 111 is relatively small, and the load-bearing performance of the main beam 111 for the battery cabinet 30 is hardly affected. Specifically, the value of A / B can be 1 / 6, 1 / 5, 1 / 4, 1 / 3, etc., without limitation.

[0060] refer to Figure 5 and Figure 6 The branch pipeline 25 extends from the bottom of the battery cabinet 30 to the top of the battery cabinet 30 .

[0061] The branch pipeline 25 is arranged along the gap between the inner wall of the cabinet 31 of the battery cabinet 30 and the battery module 32, and extends from the bottom of the cabinet 31 through the wire cover 33 to the top wall of the cabinet 31. When gas firefighting is carried out, the gas is ejected from the top wall of the cabinet 31, flows downward under the action of gravity, and then covers the battery module 32, realizing gas firefighting. This arrangement has a good firefighting effect.

[0062] refer to Figure 5 and Figure 6 A nozzle 28 is provided on the top of the battery cabinet 30, and the branch pipe 25 is connected to the nozzle 28. The specific structure of the nozzle 28 is not limited. The branch pipe 25 is connected to the nozzle 28, and gas can be sprayed through the nozzle 28 to increase the coverage area and gas pressure of the gas and improve the fire fighting effect.

[0063] Optionally, a sensor 29 is provided in the battery cabinet 30, and the sensor 29 is used to detect whether the thermal management of the battery cabinet 30 is abnormal. Specifically, the sensor 29 may be provided at the top wall, side wall and other positions in the cabinet 31, and the sensor 29 is spaced apart from the nozzle 28. The sensor 29 may specifically be a temperature sensor, a pressure sensor, a flame sensor, a smoke sensor, etc., without limitation. When the sensor 29 detects that the thermal management of the battery cabinet 30 is abnormal, the temperature and pressure rise and exceed the normal range, and even flames or smoke are generated. At this time, the gas fire fighting component 20 is activated to perform gas fire fighting. When the sensor 29 detects that the thermal management of the battery cabinet 30 is normal, the gas fire fighting component 20 is not activated, and the battery cabinet 30 works normally.

[0064] Optional, reference Figure 5 and Figure 6 , a liquid cooling pipe 34 is provided in the battery cabinet 30, and at least part of the branch pipeline 25 is arranged side by side with the liquid cooling pipe 34. Among them, multiple battery modules 32 are stacked in the cabinet 31 of the battery cabinet 30 along the height direction, and the liquid cooling pipe 34 is used to supply heat dissipation cooling liquid to the multiple battery modules 32. The liquid cooling pipe 34 also extends along the stacking direction of the multiple battery modules 32, that is, at least part of the liquid cooling pipe 34 extends from the bottom to the top of the cabinet 31. After the branch pipeline 25 extends into the battery cabinet 30 from the wire cover plate 33 at the bottom of the cabinet 31, it can be tied together with the liquid cooling pipe 34 and extend to the top of the cabinet 31 along the extension direction of the liquid cooling pipe 34. The liquid cooling pipe 34 can play a supporting role for the branch pipeline 25. At the same time, the liquid cooling pipe 34 and the branch pipeline 25 are arranged at the same position, which can realize the centralized arrangement of the pipelines and facilitate management. The liquid cooling pipe 34 can also include a liquid inlet pipe, a liquid outlet pipe, etc., which are not limited by the utility model.

[0065] refer to Figure 1 , Figure 2 and Figure 4The gas fire fighting assembly 20 also includes a fire fighting bottle 21 and an input pipe 22 . The fire fighting bottle 21 is arranged on a side of the support frame 10 away from the battery cabinet 30 or inside the battery cabinet 30 . The input pipe 22 connects the fire fighting bottle 21 and the main pipeline 24 .

[0066] Optionally, the gas fire fighting assembly 20 also includes a fire fighting bracket 27, which is arranged on the side of the support frame 10 away from the battery cabinet 30. Specifically, the fire fighting bracket 27 can be connected and fixed to the column 116 of the support frame 10 or any connecting beam 117. The fire fighting bottle 21 is arranged on the fire fighting bracket 27, and one end of the input pipe 22 is connected to the fire fighting bottle 21, and the other end extends to the receiving space of the battery cabinet 30 and the bottom plate 12 bracket and is connected to the main line 24.

[0067] Optionally, the fire bottle 21 may also be disposed inside one of the battery cabinets 30 , and the input pipe 22 is led out from the battery cabinet 30 and extends to the receiving space of the battery cabinet 30 and the bottom plate 12 bracket and connected to the main pipe 24 .

[0068] The fire cylinder 21 is filled with gas for firefighting. When the battery cabinet 30 needs to carry out gas firefighting, the gas in the fire cylinder 21 is input into the main pipeline 24 through the input pipe 22, and then distributed to the branch pipeline 25 and then input into the battery cabinet 30 for firefighting.

[0069] refer to Figure 2 and Figure 4 The frame 11 further includes a cross beam, which is connected to one end of the main beam 111 . The cross beam is provided with a pipe hole 104 , and the input pipe 22 is passed through the pipe hole 104 .

[0070] Specifically, the crossbeam is the first crossbeam 114, and the tube hole 104 can penetrate the two opposite side surfaces of the first crossbeam 114, or penetrate from the top surface of the first crossbeam 114 facing away from the support surface to the side surface facing the second crossbeam 115. The input pipe 22 can be a hose, which is passed through the tube hole 104. In this way, the input pipe 22 does not occupy the space where the battery cabinet 30 is set, avoiding interference with the battery cabinet 30.

[0071] Optional, reference Figure 2 The gas pipeline also includes a transfer tube 23, one end of which is connected to the main pipe, and the other end of the transfer tube 23 is connected to the input pipe 22. The transfer tube 23 is connected and fixed to the side of the first beam 114 toward the second beam 115, so that the connection of the pipeline is more convenient.

[0072] refer to Figure 3A sufficient number of battery cabinets 30 may not be installed on the frame 11, and some positions may be left vacant without installing the battery cabinets 30. Cover plates 13 may be installed on the main beam 111, the first side beam 112, and the second side beam 113 in these vacant positions to close the storage space and avoid direct exposure to the outside.

[0073] In one embodiment, reference Figure 1 The energy storage device also includes a liquid fire-fighting component 40 , which is disposed on the top of the battery cabinet 30 and is used for liquid fire-fighting of the battery cabinet 30 .

[0074] Among them, the specific structure of the liquid fire-fighting component 40 is not limited, and it is used to spray liquid on the battery cabinet 30, and the liquid is, for example, water or other fire-extinguishing liquid medium. The liquid fire-fighting component 40 is arranged outside the battery cabinet 30 instead of inside, and the liquid sprayed by it acts on the outer surface of the battery cabinet 30, so that the liquid will not enter the gas pipeline of the aforementioned gas fire-fighting component 20, and the liquid fire-fighting component 40 and the gas fire-fighting component 20 are independent of each other and will not interfere with each other, ensuring that both can work normally. The liquid of the liquid fire-fighting component 40 will not enter the battery cabinet 30 through the gas pipeline of the gas fire-fighting component 20 to cause the battery module to contact the liquid and cause danger, thereby improving the safety performance. In addition, the liquid fire-fighting component 40 is arranged on the top of the battery cabinet 30, while the gas fire-fighting component 20 is not arranged on the top of the battery cabinet 30. Compared with the current solution in which both the liquid fire-fighting facilities and the gas fire-fighting facilities are arranged on the top of the battery cabinet 30, the space occupied at the top of the battery cabinet 30 is reduced.

[0075] The embodiment of the utility model also provides an energy storage system, including multiple energy storage devices in the aforementioned embodiments, and the multiple energy storage devices are electrically connected. The multiple energy storage devices in the energy storage system can be spaced apart or connected in sequence. The multiple energy storage devices are electrically connected to form a large-scale energy storage system, which can provide better energy storage function. At the same time, due to the unique design of the energy storage device in the embodiment of the present application, it has a gas fire-fighting function and occupies little space.

[0076] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0077] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. An energy storage device, characterized in that: include: Support frame; A battery cabinet, arranged on the support frame; The gas fire fighting component comprises a gas pipeline, wherein the gas pipeline is at least partially arranged between the bottom of the support frame and the battery cabinet, and the gas pipeline extends into the interior of the battery cabinet. The gas fire fighting component is used for performing gas fire fighting on the battery cabinet.

2. The energy storage device according to claim 1, characterized in that: The support frame comprises: A frame and a bottom plate, wherein the bottom plate is arranged at the bottom of the frame, the battery cabinet is arranged on the frame, a receiving space is provided between the battery cabinet and the bottom plate, and the gas pipeline is at least partially received in the receiving space.

3. The energy storage device according to claim 2, characterized in that: The bottom plate is provided with a water leakage hole.

4. The energy storage device according to claim 2, characterized in that: The frame includes a main beam, the bottom plate is arranged at the bottom of the main beam, and the battery cabinet is arranged on the main beam; the gas pipeline includes a main pipeline and a branch pipeline, the main pipeline is connected to the main beam and extends along the main beam, one end of the branch pipeline is connected to the main pipeline, and the branch pipeline is at least partially located in the accommodation space, and the other end of the branch pipeline extends into the battery cabinet from the bottom of the battery cabinet.

5. The energy storage device according to claim 4, characterized in that: A wire-passing cover plate is provided at the bottom of the battery cabinet. The wire-passing cover plate is provided with a wire-passing hole, and the branch pipeline is passed through the wire-passing hole.

6. The energy storage device according to claim 4, characterized in that: There are a plurality of branch pipelines, and the plurality of branch pipelines are arranged at intervals along the extending direction of the main pipeline.

7. The energy storage device according to claim 6, characterized in that: The main beam is provided with a through hole, and the main beam divides the receiving space into a first space and a second space. The through hole connects the first space and the second space. The main pipeline is arranged in the first space, and at least one branch pipeline extends into the battery cabinet at the first space, and at least one branch pipeline passes through the through hole and extends into the battery cabinet at the second space.

8. The energy storage device according to claim 7, characterized in that: The aperture of the through hole is A, and the width of the main beam is B, satisfying: A / B≤1 / 3.

9. The energy storage device according to claim 6, characterized in that: There are multiple battery cabinets, and the multiple branch pipelines extend into the multiple battery cabinets one by one.

10. The energy storage device according to claim 4, characterized in that: The branch pipeline extends from the bottom of the battery cabinet to the top of the battery cabinet.

11. The energy storage device according to claim 10, characterized in that: A nozzle is provided on the top of the battery cabinet, and the branch pipeline is connected to the nozzle.

12. The energy storage device according to claim 10, characterized in that: A liquid cooling pipe is provided in the battery cabinet, and at least a portion of the branch pipeline is arranged side by side with the liquid cooling pipe.

13. The energy storage device according to claim 4, characterized in that: The gas fire fighting assembly further comprises a fire fighting bottle and an input pipe. The fire fighting bottle is arranged on a side of the support frame away from the battery cabinet or inside the battery cabinet. The input pipe connects the fire fighting bottle and the main pipeline.

14. The energy storage device according to claim 13, characterized in that: The frame also includes a crossbeam, which is connected to one end of the main beam. The crossbeam is provided with a pipe hole, and the input pipe is passed through the pipe hole.

15. The energy storage device according to claim 1, characterized in that: A sensor is provided in the battery cabinet, and the sensor is used to detect whether the thermal management of the battery cabinet is abnormal.

16. The energy storage device according to any one of claims 1 to 15, characterized in that: The energy storage device also includes a liquid fire-fighting component, which is arranged on the top of the battery cabinet and is used for performing liquid fire-fighting on the battery cabinet.

17. An energy storage system, characterized in that: It comprises a plurality of energy storage devices according to any one of claims 1 to 16, wherein the plurality of energy storage devices are electrically connected.

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