Energy storage container

Abstract

The present invention discloses an energy storage container, comprising a battery rack, a box body, a side door, and a refrigeration device. The battery rack is placed in the box body, and a plurality of operation windows are provided along the length of the box body. The operation windows correspond to the positions of the battery racks. The side door is connected to the box body, and the side door can cover or expose the operation windows. The refrigeration device is used to introduce air from the box body into the refrigeration device for cooling and then discharge it into the box body. The energy storage container of the present invention does not require an aisle to be provided in the box body, and the space utilization rate inside the box body is high. The operator can perform post-maintenance on the battery modules on the battery rack corresponding to the position of the operation window by operating the side door, and the operation is relatively convenient. In addition, the air cooled by the refrigeration device can be quickly heat-exchanged with the air in the box body through the refrigeration device, thereby improving the heat dissipation efficiency of the energy storage container.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to an energy storage container. Background Art

[0002] Energy storage containers are highly integrated energy storage devices, housing multiple energy storage battery modules and connecting to external devices via a small number of interfaces. They feature high integration, a compact footprint, and excellent scalability, making them a crucial component of distributed energy, smart grids, and the development of the energy internet. Battery modules and power distribution modules generate significant heat during operation. To improve space utilization within energy storage containers, a large number of battery modules are typically arranged within them, making installation and maintenance inconvenient. Furthermore, the high density of battery modules prevents rapid heat dissipation, resulting in poor heat dissipation efficiency within the containers. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an energy storage container that can improve the heat dissipation efficiency of the energy storage container and facilitate the installation and maintenance of battery modules.

[0004] An energy storage container according to an embodiment of the present invention includes:

[0005] A plurality of battery racks are provided, and the battery racks are used to install battery modules;

[0006] A box body, wherein the battery rack is placed in the box body, and a plurality of operation windows are provided along the length direction of the box body, wherein the operation windows correspond to the positions of the battery racks;

[0007] a side door connected to the box body, wherein the side door can cover or expose the operation window;

[0008] A refrigeration device is installed on the side of the box body, and is used for cooling the air in the box body and discharging the air into the box body.

[0009] The energy storage container according to the embodiment of the present invention has at least the following beneficial effects:

[0010] The energy storage container provided in the embodiment of the present invention does not require an aisle to be provided inside the container, and the space utilization rate inside the container is high. The operator can perform post-maintenance on the battery modules on the battery rack corresponding to the position of the operation window by operating the side door, and the operation is relatively convenient. In addition, the air inside the container can be cooled by the refrigeration unit. The air cooled by the refrigeration device can quickly exchange heat with the air inside the container, thereby improving the heat dissipation efficiency of the energy storage container.

[0011] According to some embodiments of the present invention, the refrigeration device is installed on the side door.

[0012] According to some embodiments of the present invention, the refrigeration device includes an air guide member, which is installed on the box body. The air guide member has a first opening, which is located at the top of the box body. The first opening is used to release the air cooled by the refrigeration unit.

[0013] According to some embodiments of the present invention, the air guide member further has a second opening and an air guide portion, the second opening is located below the first opening, and the air guide portion gradually moves away from the refrigeration device along a direction from the second opening to the second opening.

[0014] According to some embodiments of the present invention, there is a gap between adjacent battery racks, and a heat sink is provided on the side of the battery rack, and the heat sink is located corresponding to the position of the refrigeration device.

[0015] According to some embodiments of the present invention, the box body includes a main frame and a mounting plate, the mounting plate covers the surface of the main frame, and the main frame is filled with a thermal insulation layer.

[0016] According to some embodiments of the present invention, the main frame is in a rectangular shape, and is formed by splicing a plurality of cross beams, longitudinal beams and columns.

[0017] According to some embodiments of the present invention, a connecting member is further included, and the connecting member connects adjacent battery racks.

[0018] According to some embodiments of the present invention, a fire extinguishing device is further provided in the box, and the fire extinguishing device includes a sensing element and a plurality of nozzles. The nozzles are installed on the top of the box, and the nozzles can receive sensing information from the sensing element and spray gas and / or liquid.

[0019] According to some embodiments of the present invention, the battery module and the refrigeration device are both connected to cables, and a bridge for passing the cables is provided in the box.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 This is a structural schematic diagram of an embodiment of an energy storage container of the present invention;

[0023] Figure 2 for Figure 1 A top view of an embodiment of a medium energy storage container;

[0024] Figure 3 for Figure 1 A side view of an embodiment of a medium energy storage container;

[0025] Figure 4 It is a structural schematic diagram of an embodiment of an air guide member;

[0026] Figure 5 This is a schematic structural diagram of an embodiment of a battery module;

[0027] Figure 6 for Figure 1 A side view of another embodiment of a medium energy storage container;

[0028] Figure 7 for Figure 1 A cross-sectional view of an embodiment of a medium energy storage container.

[0029] Reference numerals:

[0030] Battery rack 100, installation space 110, connector 120, base 130;

[0031] Box body 200, operating window 210, mounting plate 220, longitudinal beam 230, transverse beam 240, column 250, insulation layer 260, first middle beam 270, second middle beam 280, reinforcement plate 290;

[0032] Side door 300, door panel 310, gusset plate 320, filling layer 330;

[0033] Refrigeration device 400, air guide 410, first opening 411, second opening 412, air guide portion 413;

[0034] Power distribution cabinet 500;

[0035] heat sink 600;

[0036] Bridge 700;

[0037] Sprinkler 800, fire bottle 810. DETAILED DESCRIPTION

[0038] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0040] In the description of the present invention, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] In the description of the present invention, reference to terms such as "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 present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] Reference Figure 1 and Figure 2 In one embodiment of the present invention, an energy storage container is provided. The energy storage container includes a battery rack 100 and a box body 200. A plurality of battery racks 100 are provided. The battery racks 100 are placed in the box body 200. Multiple battery modules can be installed in each battery rack 100 to increase the capacity of the battery modules in the box body 200. The box body 200 has a plurality of operation windows 210. The operation windows 210 correspond to the positions of the battery racks 100. The battery modules on the battery racks 100 can be debugged and maintained through the operation windows 210. The operation windows 210 are arranged at intervals along the length direction of the box body 200 to facilitate the position matching between the operation windows 210 and the battery racks 100, so that the operator can take into account each battery rack 100 as much as possible through the operation windows 210. In addition, the energy storage container also includes a side door 300. The side door 300 is connected to the box body 200. The side door 300 can be operated to cover or expose the operation window 210 ( Figure 1 The side door 300 is in a closed state. Figure 2the air cooled by the refrigeration device 400 is discharged into the box body 200 and performs heat exchange with the hot air in the box body 200, thereby reducing the air temperature in the box body 200.

[0044] Therefore, the energy storage container provided in the embodiment of the present invention does not require an aisle to be provided in the box body 200, and the space utilization rate inside the box body 200 is high. The operator can operate the side door 300 to perform post-maintenance on the battery modules on the battery rack 100 corresponding to the position of the operation window 210, which is relatively convenient. In addition, by providing the refrigeration device 400, the air cooled by the refrigeration device 400 can quickly exchange heat with the air in the box body 200, thereby improving the heat dissipation efficiency of the energy storage container.

[0045] It should be noted that the length direction of the box body 200 refers to the extension direction of the straight line where the longer side of the box body 200 is located, except for the height direction, that is, Figure 1 The refrigeration device 400 may be an air conditioner. In one embodiment of the present invention, the refrigeration device 400 may be a wall-mounted air conditioner. The refrigeration device 400 includes an induced draft unit and a refrigeration unit (not shown). The induced draft unit can quickly introduce air in the cabinet 200 into the refrigeration unit for cooling, thereby accelerating the heat exchange between the cold air and the hot air. The induced draft unit may be a fan, an induced draft blower, etc., and the refrigeration unit may be a compressor, a condenser, etc. The side door 300 may be rotatably connected or slidably connected to the cabinet 200 so that the side door 200 can cover or expose the operation window 210 when it moves.

[0046] In addition, the refrigeration device 400 is installed on the side door 300 so that the refrigeration device 400 can correspond to the position of the battery rack 100. The refrigeration device 400 can quickly absorb the hot air near the battery rack 100 and cool it, and the heat dissipation efficiency of the box body 100 is high.

[0047] In addition, the battery rack 100 can be constructed of a frame structure assembled from metal components to facilitate the installation and heat dissipation of the battery modules. Each operating window 210 can be covered with two side doors 300 that can be opened or closed simultaneously, or each operating window 210 can have a corresponding side door 300 that can be opened and closed by rotating the side door 300. Multiple battery racks 100 can be arranged in multiple rows along the transverse direction of the housing 200 to increase the number of batteries accommodated within the housing 200 and improve the space utilization of the housing 200. The debugging components of the battery modules on battery racks 100 in different rows can all be located on the battery rack 100 near the outermost row, making it easier for operators to perform maintenance and debugging through the operating window 210.

[0048] It should be noted that both sides of the housing 200 are provided with operation windows 210 and refrigeration devices 400, which make battery module debugging more flexible and enhance the cooling effect of the refrigeration device 400 on the air inside the housing 200. Operators can inspect and repair the battery modules at the corresponding operation windows 210 based on the actual position of the battery racks 100, thereby improving the convenience of subsequent maintenance of the battery modules. Specifically, in one embodiment of the present invention, two rows of battery racks 100 are arranged in the housing 200 along the horizontal direction of the housing 200. The two rows of battery racks 100 and the operation windows 210 and refrigeration devices 400 on both sides of the housing 200 are symmetrically arranged. The two rows of battery racks 100 are respectively close to the operation windows 210 on both sides of the housing 200. Operators can quickly maintain the corresponding rows of battery modules through the operation windows 210 on both sides, which is highly efficient. In addition, the one-to-one correspondence between the refrigeration devices 400 and the battery racks 100 can effectively ensure the heat dissipation efficiency of the air inside the housing 200. It is conceivable that multiple battery racks 100 can correspond to the same operating window 210 and refrigeration device 400, or multiple refrigeration devices 400 can be installed at each operating window 210. The specific settings can be reasonably selected based on the heat dissipation requirements of the box 200, the energy storage performance of the box 200, etc.

[0049] It should be noted that a power distribution cabinet 500 is also installed within the cabinet 200. This cabinet is used to distribute electrical energy and perform power outages for maintenance in the event of a short circuit, overload, or leakage within the cabinet 200. The cabinet 500 is located between adjacent battery racks 100 and corresponds to the position of the refrigeration unit 400. This allows heat generated by the cabinet 500 to be quickly discharged outside the cabinet 200 through the refrigeration unit 400.

[0050] Reference Figure 3 In one embodiment of the present invention, the refrigeration device 400 includes an air guide 410, which is installed at the top of the refrigeration device 400. The air guide 410 has a first opening 411. The air induction unit can introduce the air in the box 200 into the refrigeration unit. The air cooled by the refrigeration unit is driven by the air outlet element (such as a fan, etc.) inside the refrigeration device 400 and discharged into the box 200 from the first opening 411. Because the first opening 411 is located at the top of the box 200, the cold air discharged from the first opening 411 will gradually descend, so that the cold air can fully exchange heat with the hot air in the box 200, thereby improving the heat dissipation efficiency of the box 200.

[0051] Reference Figure 4In other embodiments of the present invention, the air guide 410 further has a second opening 412 and an air guide portion 413. After the air guide 410 is installed on the box body 200, the second opening 412 is located below the first opening 411, and the air guide portion 413 gradually moves away from the refrigeration device 400 in the direction from the second opening 412 toward the first opening 411. The air guide portion 413 is used to guide the cold air entering the air guide 410. Specifically, Figure 3 The cold air entering the air guide 410 from the first opening 411 gradually rises and is discharged toward the side away from the refrigeration device 400 under the guidance of the air guide portion 413. Therefore, the cold air discharged from the second opening 412 flows toward the center of the box and gradually descends, which can quickly exchange heat with the hot air in the box body 200.

[0052] Reference Figure 3 In one embodiment of the present invention, a plurality of installation spaces 110 are provided in the battery rack 100. The installation spaces 110 are stacked in the vertical direction, and a battery module is installed in each installation space 110, thereby increasing the capacity of the box 200 to accommodate the battery modules. In addition, since the cold air released by the refrigeration device 400 flows from top to bottom, as the cold air flows, the cold air can exchange heat with the hot air near each battery module, thereby reducing the temperature difference between different battery modules in the box 200 and improving the operating efficiency of the energy storage container. It should be noted that multiple battery modules can be arranged horizontally in each installation space 110. On the premise of meeting the heat dissipation requirements of the battery modules, the arrangement of the battery modules is made more compact, thereby optimizing the energy storage performance of the energy storage container.

[0053] Reference Figure 5 In one embodiment of the present invention, gaps are provided between adjacent battery racks 100. Heat sinks 600 are installed at the ends of each battery module or on the sides of the battery racks 100. The airflow generated by the heat sinks 600 allows air to pass through the interior of the battery module, removing heat from the battery module, reducing the overall temperature difference within the battery module and ensuring normal operation of the battery module. It should be noted that the heat sinks 600 may be fans, blowers, or the like. The airflow generated by the heat sinks 600 allows air to pass through the battery module and remove heat. Furthermore, the cold air generated by the refrigeration unit 400 flows along the sides of the battery module. The heat sinks 600 draw the cold air into the battery module, exchanging heat with the hot air within the battery module, rapidly cooling the battery module.

[0054] Therefore, in the energy storage container of the present invention, the heat sink 600 corresponds to the position of the battery rack 100 and the refrigeration device 400, so that the refrigeration device 400, the air guide 410 and the heat sink 600 form a complete heat dissipation system and air circulation loop to ensure effective heat dissipation inside the box 200. Figure 3 The refrigeration unit 400 absorbs and cools the hot air inside the box 200. The cooled air is then discharged into the box 200 through the second opening 412 via the air guide 410. The cold air gradually descends along the side of the battery rack 100 and continuously exchanges heat with the hot air near the battery rack 100. Furthermore, under the guidance of the heat dissipation element 600, the cold air enters the battery module, reducing the overall temperature difference of the battery module and ensuring its operating performance. The heat generated by the battery module and other components will continue to rise and be absorbed and cooled by the refrigeration unit 400. The combined action of the above structures allows air to continuously circulate within the box 200, thereby improving the heat dissipation efficiency of the energy storage container.

[0055] In other embodiments of the present invention, the energy storage container further includes a ventilation device (not shown), which is mounted on the housing 200 and is capable of introducing air from outside the housing 200 into the housing 200 or into the refrigeration unit 400. Specifically, the introduction of external air through the ventilation device can, on the one hand, replace the original air inside the housing 200 with fresh air from the outside, thereby purifying the air inside the housing 200. On the other hand, when the temperature outside the housing 200 is low, the introduction of external air can reduce the workload of the refrigeration unit 400, thereby increasing the service life of the refrigeration unit 400. It should be noted that the ventilation device can be a ventilation fan, an induced draft fan, etc. The ventilation device can extract the hot air from the interior of the housing 200 and exhaust it to the outside of the housing 200, and introduce external air into the housing 200, thereby achieving ventilation inside and outside the housing 200. In addition, when the air temperature outside the box 200 is low, the ventilation device can be used alone; when the air temperature outside the box 200 is high, the ventilation device and the refrigeration device 400 can be used in combination to quickly ventilate the box 200 and reduce the internal temperature of the box 200.

[0056] Reference Figure 2 and Figure 6 In order to make the battery rack 100 and the distribution cabinet 500 more stable in the box 200, in one embodiment of the present invention, a connector 120 is further provided. Adjacent battery racks 100 and battery racks 100 and distribution cabinets 500 are connected by the connector 120, so that the battery rack 100 and the distribution cabinet 500 are mutually locked, so that multiple battery racks 100 and distribution cabinets 500 form a whole, thereby improving the stability of the battery rack 100 and the distribution cabinet 500 in the box 200 and facilitating the transportation of the energy storage container.

[0057] It should be noted that, referring to Figure 6 and Figure 7The connector 120 can be arranged between adjacent battery racks 100 in the horizontal and vertical directions, and between the battery rack 100 and the power distribution cabinet 500, so as to lock the battery rack 100 and the power distribution cabinet 500 in different directions. In addition, the connector 120 can be made of steel components, such as channel steel, C-shaped steel, etc., or a connecting frame assembled from steel components. In some embodiments, multiple steel components are assembled to make the connector 120 in the shape of a "J" to increase the contact area between the connector 120 and the battery rack 100, thereby facilitating the interlocking between the battery rack 100 and the power distribution cabinet 500. In this embodiment, the "J"-shaped connector 120 is used to connect two battery racks 100 arranged longitudinally, as well as the battery rack 100 and the power distribution cabinet 500. The connector 120 in the form of a steel component is used to connect the battery rack 100 arranged transversely. The longitudinal direction of the box body 200 is the same as the transportation direction of the energy storage container. The connector 120 arranged in this way improves the stability of the battery rack 100 during transportation while assembling the battery rack 100 and the power distribution cabinet 500 into a whole.

[0058] In addition, refer to Figure 7 A base 130 for fixing the battery rack 100 is also provided inside the box 200. The base 130 extends longitudinally along the box 200, and the bottom of the battery rack 100 is fixed on the base 130. On the one hand, it increases the connection strength between the battery racks 100, and on the other hand, it makes the force on the bottom of the box 200 more uniform, avoiding deformation of the box 200.

[0059] Reference Figure 1 and Figure 7In one embodiment of the present invention, the housing 200 includes a main frame and a mounting plate 220. The main frame is the primary load-bearing structure of the housing 200, and the mounting plate 220 covers the surface of the main frame. Specifically, the mounting plate 220 can cover the ends, top, and bottom of the main frame, while the side door 300 covers the side of the main frame, thereby providing a relatively closed and stable working environment for components such as the battery module. The mounting plate 220 can be made of high-weathering steel, which gives the housing 200 high strength, toughness, and resistance to brittle fracture. The main frame can be formed into a rectangular parallelepiped by splicing multiple longitudinal beams 230, cross beams 240 and columns 250. The columns 250 extend in the vertical direction, the cross beams 240 extend in the transverse direction of the box body 200, and the longitudinal beams 230 extend in the transverse direction of the box body 200. The cross beams 240, longitudinal beams 230 and columns 250 can be fixedly connected by welding or threaded fastening. A plurality of cross beams 240 and columns 250 are arranged at intervals along the extension direction of the longitudinal beams 230 to ensure the overall structural strength and load-bearing capacity of the main frame. The rectangular parallelepiped main frame can improve the structural strength of the box body 200 and reduce the deformation and distortion of the box body 200. It should be noted that, according to the specific load-bearing requirements of the box body 200, the cross beams 240 can be made of channel steel, C-shaped steel, etc., the longitudinal beams 230 can be made of H-shaped steel, I-beam, square tube, flat tube, etc., and the columns 250 can be made of square tube, channel steel and other shaped steel.

[0060] In one embodiment of the present invention, referring to Figure 1 The columns 250 are vertically arranged between two adjacent longitudinal beams 230. The two ends of the columns 250 are connected to the longitudinal beams 230 respectively. The columns 250 are used to install the side doors 300. The columns 250 are provided with a hinge structure for connecting to the side doors 300. The side doors 300 are hinged to the columns 250 and can rotate relative to the columns 250. By providing the columns 250, on the one hand, a mounting base is provided for the side doors 300, and on the other hand, the longitudinal beams 230 of the upper and lower layers are connected to ensure the structural strength of the main frame. It should be noted that the cross beams 240 correspond to the positions of the columns 250. The ends of the cross beams 240 can be directly welded and fixed to the ends of the columns 250. Thus, the cross beams 240 and the columns 250 of the upper and lower layers are combined to form a rectangular frame to ensure the structural strength of the main frame and reduce distortion.

[0061] In addition, by covering the main frame with the mounting plate 220, a closed space is formed inside the crossbeam 240 and the longitudinal beam 230. The closed space is filled with an insulation layer 260. Since most of the structure of the box body 200 is made of metal, the thermal conductivity coefficient is relatively large. By providing the insulation layer 260, a relatively stable working environment can be maintained inside the box body 200 to ensure the service life of each component. The insulation layer 260 can be made of materials such as rock wool, glass wool, and foam glass. The side door 300 includes a door panel 310 and a gusset plate 320. A filling layer 330 is provided between the door panel 310 and the gusset plate 320. The filling layer 330 plays a role in heat preservation. The filling layer 330 can be made of materials such as rock wool, glass wool, and foam glass.

[0062] To increase the strength of the container 200, in one embodiment of the present invention, the main frame includes a first intermediate beam 270. The first intermediate beam 270 extends longitudinally along the container 200 and is positioned between the longitudinal beams 230 and the end faces of the columns 250, thereby increasing the structural strength of the connection between the longitudinal beams 230 and the columns 250. Furthermore, when the first intermediate beams 270, located at the upper and lower ends of the columns 250, are combined with the columns 250, the planes they form are recessed relative to the outer surface of the container 200. This provides space for the installation of the side door 300, preventing structures such as the handrails on the side door 300 and the hinges on the columns 250 from protruding from the outer surface of the container 200 and hindering the transportation and stacking of the energy storage container. It should be noted that the first intermediate beam 270 can be constructed of square tubes, H-shaped steel, or other components.

[0063] In one embodiment of the present invention, the longitudinal beam 230 is an H-shaped steel beam. The H-shaped steel beam has a large load-bearing capacity, high bending strength, and a light weight, making it easy to lift and transport. An installation space is formed between the outer side of the web of the longitudinal beam 230 and the flange. The ends of the second intermediate beam 280 and the cross beam 240 are both inserted into the installation space. The ends of the cross beam 240 are welded and fixed to the web of the longitudinal beam 230. The two sides of the second intermediate beam 280 are welded and fixed to the flange of the longitudinal beam 230 and the upper surface of the cross beam 240. By providing the second intermediate beam 280, the connection between the longitudinal beam 230 and the cross beam 240 is made more stable, and the structural strength of the main frame is improved. It should be noted that in order to improve the overall load-bearing performance of the box body 200, in this embodiment, the longitudinal beam 230 at the top is a flat beam, and the longitudinal beam 230 at the bottom is an H-shaped steel beam.

[0064] In addition, refer to Figure 1 The main frame also includes a reinforcing plate 290, which is arranged at the end of the longitudinal beam 230 and embedded in the installation space. The upper and lower ends of the reinforcing plate 290 and the flanges of the longitudinal beam 230 support each other, thereby improving the structural strength of the longitudinal beam 230 and reducing the distortion of the longitudinal beam 230.

[0065] Reference Figure 7In one embodiment of the present invention, components such as the battery module, the refrigeration device 400, and the power distribution cabinet 500 are all connected with cables, and a bridge 700 for threading the cables is provided in the box 200. By routing the cables through the bridge 700, the wiring in the box 200 can be made neater, thus avoiding short circuits or even fires caused by chaotic wiring. In addition, multiple bridges 700 can be provided, and the cables connected to the refrigeration device 400, the power lines connected to the battery module, and the cables connected to the power distribution cabinet 500 can be respectively threaded in different bridges 700; a wire trough can also be provided on the top of the battery rack 100, and the wire trough can also be used to thread secondary wiring connecting the battery modules, so as to facilitate the arrangement and classification of the cables. The bridge 700 can adopt a mesh structure to facilitate the heat dissipation of the cables and extend the service life of the cables.

[0066] In one embodiment of the present invention, a fire extinguishing device is also installed inside the container 200. The fire extinguishing device includes a sensing element and multiple nozzles 800. The sensing element can be a smoke detector and / or a temperature detector. The nozzles 800 are installed on the top of the container 200. The nozzles 800 can receive the sensing information of the sensing element. When the smoke concentration or temperature inside the container 200 reaches a certain range, the nozzles 800 will spray liquid and / or gas to extinguish the fire. The gas and / or liquid sprayed by the nozzles 800 installed on the top of the container 200 can directly act downward on the different battery racks 100, giving the energy storage container better fire extinguishing performance.

[0067] The fire extinguishing device also includes an alarm that emits an alarm signal based on the sensing information from the sensor element. The operator can use this alarm signal to confirm the authenticity of the fire and implement appropriate fire-fighting measures. A fire bottle 810 can be placed within the housing 200 and connected to a nozzle 800, allowing the release of fire extinguishing agent through the nozzle 800 to extinguish the fire. Furthermore, the gas ejected by the nozzle 800 can be FM200 (heptafluoropropane), and the liquid ejected by the nozzle 800 can be water. Different nozzles 800 can simultaneously eject both gas and liquid for rapid fire extinguishing.

[0068] It should be noted that the fire extinguishing device can be equipped with two detection circuits simultaneously. The two detection circuits respectively detect the smoke concentration and temperature within the box 200. The alarm in one circuit sends an alarm signal based on the sensing information of the smoke detector, alerting the staff to pay attention and confirm the fire as soon as possible. After the alarm in the other circuit sends an alarm signal based on the sensing information of the temperature detector, the fire extinguishing device enters a delay phase. This delay segment is used to evacuate personnel and shut down equipment such as the refrigeration unit 400 that affects the fire extinguishing effect. After the delay, the nozzle 800 emits gas and liquid to implement fire extinguishing. An indicator panel can be set on the outside of the box 200 to facilitate the operator to obtain the fire extinguishing status. The above-mentioned alarm alarm, detector detection, delay adjustment, and nozzle 800 spraying actions can be set through the PLC program to realize automatic fire extinguishing of the fire extinguishing device.

[0069] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications may be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof may be combined with one another unless there is a conflict.

Claims

1. Energy storage container, characterized in that: include: A plurality of battery racks are provided, and the battery racks are used to install battery modules; A box body, wherein the battery rack is placed in the box body, and a plurality of operation windows are provided along the length direction of the box body, wherein the operation windows correspond to the positions of the battery racks; a side door connected to the box body, wherein the side door can cover or expose the operation window; A refrigeration device, the refrigeration device is used to cool the air in the box and discharge it into the box, the refrigeration device includes an air induction unit, a refrigeration unit and an air guide, the air induction unit is used to introduce the air in the box into the refrigeration unit for cooling, the refrigeration device is installed on the side door, the air guide is installed on the box, the air guide has a first opening, a second opening and an air guide portion, the first opening is located at the top of the box, the first opening is used to release the air cooled by the refrigeration device, the second opening is located below the first opening, and the air guide portion gradually moves away from the refrigeration device in the direction from the second opening toward the first opening, and there is a gap between adjacent battery racks. A heat sink is provided on the side of the battery rack, and the heat sink can generate airflow to allow air to pass through the interior of the battery module. The heat sink corresponds to the position of the battery rack and the refrigeration device, and the refrigeration device, the air guide and the heat sink form a heat dissipation system.

2. The energy storage container according to claim 1, characterized in that: The box body includes a main frame and a mounting plate. The mounting plate covers the surface of the main frame. The main frame is filled with a heat-insulating layer.

3. The energy storage container according to claim 2, characterized in that: The main frame is in the shape of a rectangular parallelepiped and is formed by splicing a plurality of cross beams, longitudinal beams and columns.

4. The energy storage container according to claim 1, characterized in that: It also includes a connecting member, which connects adjacent battery racks.

5. The energy storage container according to any one of claims 1 to 4, characterized in that: A fire extinguishing device is also provided in the box, and the fire extinguishing device includes a sensing element and a plurality of nozzles. The nozzles are installed on the top of the box, and the nozzles can receive sensing information from the sensing element and spray gas and / or liquid.

6. The energy storage container according to any one of claims 1 to 4, characterized in that: The battery module and the refrigeration device are both connected to cables, and a bridge frame for passing the cables is provided in the box.

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