Energy storage container, energy storage device and power supply system

Abstract

The application discloses an energy storage container, an energy storage device and a power supply system, and relates to the technical field of energy storage. The energy storage container comprises an outer frame, a plurality of inner frames and a plurality of high-voltage box supports. The outer frame comprises a bottom frame, a top frame and a plurality of columns, and the bottom frame comprises a support cross beam. The plurality of inner frames are fixed between the bottom frame and the top frame and are distributed at intervals along the length direction of the support cross beam, and a connecting cross beam is connected between any two adjacent inner frames. Each high-voltage box support is located between any two adjacent inner frames and is fixed on the connecting cross beam and the support cross beam. In the application, the connecting cross beam and the support cross beam are combined to separately fix the high-voltage box supports, so that different point positions of the inner frames and the high-voltage box supports supported on the support cross beam can be realized, the strength requirement of the inner frames is reduced, the deformation of the support cross beam caused by excessive force on local point positions is avoided, and the structural stability of the energy storage container is ensured.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and more specifically, to an energy storage container, an energy storage device, and a power supply system. Background Technology

[0002] An energy storage system mainly comprises an energy storage device consisting of an energy storage container and energy storage units, enabling the storage and release of electrical energy within the system. The energy storage container contains multiple internal frames, with multiple mounting positions between adjacent frames. These positions allow for the fixation of the energy storage units, ensuring the overall electrical capacity of the energy storage device. Additionally, the energy storage container houses a high-voltage junction box, which connects to the energy storage units. This junction box enables the distribution and management of high-voltage electrical energy, ensuring the safety of the energy storage units' charging and discharging.

[0003] However, in related technologies, high-voltage junction boxes are mounted on adjacent inner frames, which concentrates the weight of the high-voltage junction boxes and the energy storage units on multiple mounting positions onto the inner frame, thereby increasing the strength requirements of the energy storage container. Utility Model Content

[0004] A primary objective of this application is to provide an energy storage container, energy storage device, and power supply system with improved structural stability.

[0005] To achieve the above-mentioned objectives, this application adopts the following technical solution:

[0006] According to one aspect of this application, an energy storage container is provided, comprising: an outer frame including a bottom frame and a top frame disposed opposite to each other, and a plurality of columns connecting the bottom frame and the top frame, the bottom frame including a front bottom crossbeam, a rear bottom crossbeam and a pair of bottom longitudinal beams forming a rectangular frame, and a support crossbeam fixedly connected to the pair of bottom longitudinal beams; a plurality of inner frames fixed between the bottom frame and the top frame and spaced apart along the length direction of the support crossbeams, a plurality of mounting positions being formed between adjacent two inner frames, and a connecting crossbeam close to the bottom frame connecting adjacent two inner frames, the mounting positions being used to accommodate energy storage units; and a plurality of high-voltage box brackets, each of the high-voltage box brackets being located between adjacent two inner frames and fixed on the connecting crossbeams and the support crossbeams.

[0007] In this embodiment, the high-voltage box bracket is individually fixed by combining the supporting beams included in the bottom frame. This allows the inner frame and the high-voltage box bracket to be supported at different points on the supporting beams, thereby reducing the strength requirements of the supporting beams and avoiding excessive stress on local points on the supporting beams, which could cause deformation and ensure the structural stability of the energy storage container.

[0008] According to one embodiment of this application, the bottom frame forms a cavity in the region between the supporting crossbeam and the connecting crossbeam.

[0009] In this embodiment, the cavity design facilitates the exposure of the high-voltage junction box on the bottom side of the high-voltage box bracket, thereby improving the heat dissipation effect of the high-voltage junction box and ensuring its reliability.

[0010] According to one embodiment of this application, a cable routing pipe is provided on the bottom side of the high-voltage box bracket, the cable routing pipe is fixedly connected to a plurality of inner frames, and has a cable outlet hole corresponding to each of the high-voltage box brackets.

[0011] In this embodiment, the cavity on the bottom side of the high-voltage box bracket not only achieves effective heat dissipation but also improves space utilization to accommodate the installation of wiring conduits, thereby protecting the wiring harness, preventing crosstalk, and improving the safety of the wiring harness.

[0012] According to one embodiment of this application, the cable outlet is located on the side of the cable conduit facing away from the high-voltage box bracket.

[0013] In this embodiment, the low-voltage cable passing through the outlet hole can be routed from the cable conduit away from the high-voltage box bracket to the terminal of the high-voltage junction box, so as to ensure that the lowest point of the low-voltage cable is lower than the outlet hole on the cable conduit, thereby preventing the condensate on the low-voltage cable from flowing downstream and accumulating in the cable conduit.

[0014] According to one embodiment of this application, the cable outlet is located on the side of the cable conduit closer to the connecting beam, and in the height direction of the energy storage container, the cable conduit is located on the side of the connecting beam away from the top frame.

[0015] In this embodiment, the low-voltage wiring passing through the outlet hole can be directly routed to the terminal of the high-voltage junction box, thereby reducing the bending of the low-voltage wiring and facilitating the connection between the low-voltage wiring and the high-voltage junction box on the cabinet door side.

[0016] According to one embodiment of this application, the connecting beam is a U-shaped groove structure with its opening facing away from the high-voltage box bracket, and the groove edge of the connecting beam has an inwardly turned edge.

[0017] In this embodiment, while ensuring that the connecting beam reliably supports the high-voltage box bracket, the scraping between the low-voltage wiring and the connecting beam is avoided.

[0018] According to one embodiment of this application, the high-voltage box bracket includes a pair of support rods, both of which are fixedly connected to the connecting crossbeam and the supporting crossbeam, and a first limiting structure is provided on the end of the support rod near the supporting crossbeam.

[0019] In this embodiment, a pair of support rods simplifies the structure of the high-voltage box bracket and enables a lightweight design.

[0020] According to one embodiment of this application, a detachable second limiting structure is provided on the end of the support rod near the connecting beam.

[0021] In this embodiment, the setting of the second limiting structure facilitates the fixing of the high-voltage junction box at the front end, thereby improving the stability of the high-voltage junction box on the high-voltage box bracket.

[0022] According to one embodiment of this application, a lower flap is provided on the end of the support rod near the connecting crossbeam, the lower flap is fixedly connected to the connecting crossbeam, and the second limiting structure is detachably fixed on the lower flap.

[0023] In this embodiment, the lower flap prevents structural damage to the connecting beam when fixing the second limiting structure, thereby ensuring the reliability of the connecting beam in supporting the high-voltage box bracket.

[0024] According to one embodiment of this application, there is a gap between the high-voltage box bracket and an adjacent inner frame, and a wire harness bracket is provided in the gap between the high-voltage box bracket and the adjacent inner frame.

[0025] In this embodiment, the wiring harness bracket avoids the high-voltage wiring connected to the high-voltage junction box from being suspended between the connecting beam and the supporting beam, thereby preventing the high-voltage wiring from sag due to gravity and causing pulling at the interface, thus ensuring the reliability of the high-voltage wiring connection.

[0026] According to one embodiment of this application, the wire harness bracket is fixed to the connecting beam and the supporting beam.

[0027] In this embodiment, the load-bearing length of the high-voltage wiring harness is guaranteed by the wiring harness bracket. At the same time, the bending angle of the connector end of the high-voltage wiring harness on the wiring harness bracket can be adjusted by adjusting the distance between the wiring harness bracket and the high-voltage box bracket, so as to reduce the stress at the connection between the connector end of the high-voltage wiring harness and the high-voltage junction box and ensure the reliability of the connection between the high-voltage wiring harness and the high-voltage junction box.

[0028] According to one embodiment of this application, the wire harness bracket includes a plurality of shelves spaced apart along the length of the column, each shelf being connected to a limiting plate, and the limiting plate being located on the side of the shelf away from the high voltage box bracket.

[0029] In this embodiment, multiple stacked shelves facilitate the distribution of high-voltage cables along the height of the energy storage container, thereby improving space utilization and avoiding the difficulty of wiring due to overcrowding when high-voltage cables are on the same floor.

[0030] According to one aspect of this application, an energy storage device is provided, comprising: the energy storage container described in the above aspect; and a plurality of energy storage units, each of the energy storage units being fixed on a mounting position formed by two adjacent inner frames.

[0031] According to one aspect of this application, a power supply system is provided, the power supply system including electrical equipment and the energy storage device described in the above aspect, the energy storage device supplying power to the electrical equipment.

[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0033] The above and other features and advantages of this application will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0034] Figure 1 This is a schematic diagram of an energy storage system according to an exemplary embodiment.

[0035] Figure 2 This is a front view structural schematic diagram of an energy storage device according to an exemplary embodiment.

[0036] Figure 3 This is a schematic diagram of the axonometric structure of an energy storage container according to an exemplary embodiment.

[0037] Figure 4 This is a schematic diagram of the axonal structure of another energy storage container according to an exemplary embodiment.

[0038] Figure 5 yes Figure 4 The diagram shows a partially enlarged structural schematic of the energy storage container.

[0039] Figure 6 This is a schematic diagram of the structure of an inner frame according to an exemplary embodiment.

[0040] Figure 7This is a schematic diagram of a structure in which a high-voltage junction box is disposed between inner frames, according to an exemplary embodiment.

[0041] Figure 8 This is a structural schematic diagram of a high-voltage box bracket according to an exemplary embodiment.

[0042] Figure 9 yes Figure 8 The diagram shows a partially enlarged structural schematic of the high-voltage box bracket.

[0043] Figure 10 This is a schematic diagram of a conduit structure according to an exemplary embodiment.

[0044] Figure 11 yes Figure 10 The diagram shows a partially enlarged view of the conduit.

[0045] Figure 12 This is a schematic diagram of a power supply system according to an exemplary embodiment.

[0046] The reference numerals in the attached figures are explained as follows:

[0047] 1000. Energy storage system;

[0048] 100. Energy storage device; 200. First power conversion device; 300. Second power conversion device; 400. High-voltage cable; 500. Power supply system; 510. Electrical equipment;

[0049] 10. Energy storage container; 20. Energy storage unit; 30. Outer frame; 40. Inner frame; 50. High-voltage box bracket; 60. High-voltage junction box; 70. Partition plate;

[0050] 10a. Battery compartment; 10b. Electrical compartment; 10c. Cooling compartment;

[0051] 101. Cooling unit; 102. Liquid storage tank;

[0052] 31. Base frame; 32. Top frame; 33. Columns;

[0053] 311. Front bottom crossbeam; 312. Rear bottom crossbeam; 313. Bottom longitudinal beam; 314. Support crossbeam; 315. Support longitudinal beam; 316. Cavity;

[0054] 3151, First longitudinal beam; 3152, Second longitudinal beam;

[0055] 41. Vertical beam; 42. Fixed guide rail; 43. Inclined beam; 44. Mounting position; 45. Connecting crossbeam; 46. Inward flange;

[0056] 51. Support rod; 52. First limiting structure; 53. Buffer; 54. Lower flap; 55. Wiring harness bracket; 56. Cable routing tube; 57. Cable outlet hole; 58. Second limiting structure;

[0057] 551. Shelf;

[0058] 61. High-voltage wiring; 62. Low-voltage wiring. Detailed Implementation

[0059] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0060] Because the energy people need is highly time- and space-dependent, in order to make rational use of energy and improve energy efficiency, it is necessary to use a medium or device to store one form of energy in the same way or by converting it into another form of energy, and then release it in a specific form of energy based on future application needs.

[0061] Currently, the generation of green electricity generally relies on solar, wind, and hydropower. However, wind and solar power are generally characterized by strong intermittency and large fluctuations, which can cause grid instability, insufficient power during peak demand periods, and excessive power during off-peak periods. Unstable voltage can also damage the power grid. Therefore, insufficient electricity demand or insufficient grid capacity may lead to the problem of "wind and solar curtailment." Solving these problems requires energy storage. This involves converting electrical energy into other forms of energy through physical or chemical means and storing it. When needed, this energy can be converted back into electrical energy and released. Simply put, energy storage is like a large "power bank," storing electrical energy when solar and wind power are abundant and releasing the stored electricity when needed.

[0062] Taking electrochemical energy storage as an example, this solution provides an energy storage device 100, which is applied to an energy storage system 1000. The energy storage device 100 is equipped with a chemical battery, which mainly uses the chemical elements in the chemical battery as the energy storage medium. The charging and discharging process is accompanied by the chemical reaction or change of the energy storage medium. Simply put, the electrical energy generated by wind and solar energy is stored in the chemical battery. When the use of external electrical energy reaches its peak, the stored electrical energy is released for use, or transferred to places with a shortage of electricity for use.

[0063] Current energy storage applications are quite widespread, including generation-side energy storage, grid-side energy storage, and consumption-side energy storage. The corresponding types of energy storage devices 100 include:

[0064] (1) Large-scale energy storage power stations (including prefabricated energy storage modules) applied to wind power and photovoltaic power stations can help renewable energy power generation meet grid connection requirements and improve the utilization rate of renewable energy. As a high-quality active / reactive power source in the power supply side, the energy storage power station realizes the load matching of power in time and space, enhances the renewable energy absorption capacity, reduces instantaneous power changes, reduces the impact on the power grid, improves the problem of new energy power generation absorption, and is of great significance in power grid system backup, alleviating peak load power supply pressure and peak regulation and frequency regulation.

[0065] (2) The energy storage prefabricated cabin applied on the grid side has the main functions of peak regulation, frequency regulation and alleviating grid congestion. In terms of peak regulation, it can realize peak shaving and valley filling of electricity load, that is, charging the energy storage device 100% when the electricity load is low and releasing the stored electricity during the peak period of electricity load, thereby achieving a balance between power production and consumption.

[0066] (3) Small energy storage cabinets applied to the electricity consumption side mainly function as self-consumption of electricity, peak-valley price arbitrage, capacity cost management, and improvement of power supply reliability. Depending on the application scenario, electricity consumption side energy storage can be divided into industrial and commercial energy storage cabinets, household energy storage devices 100, energy storage charging piles, etc., which are generally used in conjunction with distributed photovoltaics. Industrial and commercial users can use energy storage for peak-valley price arbitrage and capacity cost management. In the electricity market implementing peak-valley pricing, by charging the energy storage system 1000 when the electricity price is low and discharging the energy storage system 1000 when the electricity price is high, peak-valley price arbitrage can be achieved, reducing electricity costs. In addition, industrial enterprises subject to two-part tariffs can use the energy storage system 1000 to store energy during off-peak hours and discharge during peak loads, thereby reducing peak power and the maximum demand declared, achieving the goal of reducing capacity electricity costs. Household photovoltaics with energy storage can improve the level of self-consumption of electricity. Due to high electricity prices and poor power supply stability, the demand for household photovoltaic installations is driven. Given that photovoltaic power generation occurs during the day, while user load is generally higher at night, configuring energy storage can better utilize photovoltaic power, improve self-consumption levels, and reduce electricity costs. Furthermore, energy storage is needed in areas such as communication base stations and data centers for backup power.

[0067] Figure 1 This is a schematic diagram of the structure of an energy storage system 1000 provided in this application. The energy storage system 1000 is illustrated using a shared energy storage scenario on the generation / distribution side as an example. Of course, the energy storage device 100 of this application is not limited to the shared energy storage scenario on the generation / distribution side.

[0068] like Figure 1 As shown, the energy storage system 1000 includes: an energy storage device 100, a first power conversion device 200, a second power conversion device 300, and a high-voltage cable 400.

[0069] In some embodiments of the power generation scenario, the first power conversion device 200 can be a wind power conversion device. Since the electricity generated by wind power conversion is volatile, random, and intermittent, the unstable electricity output by the wind power conversion device can be stored in an energy storage device 100 via grid connection. The energy storage device 100 is connected to the high-voltage cable 400 and outputs smooth electricity to the power consumption side, achieving peak shaving and frequency regulation, and ensuring stable grid operation. Alternatively, the wind power conversion device is always connected to the high-voltage cable 400, and under normal power generation conditions, the high-voltage cable 400... The electricity output from the wind power conversion device is supplied to the power consumption side. When the current power load is low and the wind power conversion device generates excess electricity, the excess electricity is first stored in the energy storage device 100 to improve the problem of new energy power generation and consumption. When the power load is high, the power grid issues an instruction to transmit the electricity stored in the energy storage device 100 together with the high-voltage cable 400 in grid-connected mode to supply the power consumption side. This provides the power grid with various services such as peak shaving, frequency regulation, and backup, giving full play to the peak shaving role of the power grid, promoting peak shaving and valley filling, and alleviating the power supply pressure of the power grid.

[0070] In some embodiments on the distribution network side, the second power conversion device 300 can be a photovoltaic power conversion device. The energy storage device 100 is connected to the photovoltaic power conversion device and installed downstream of the high-voltage cable 400 between the user load and the photovoltaic power conversion device. The electrical energy output by the photovoltaic power conversion device is stored in the energy storage device 100, which can respond in a timely manner to act as a backup power source when the power grid / distribution network fails. Alternatively, it can provide power supply support to alleviate line congestion when the high-voltage cable 400 transmission line is blocked, and to delay the economic pressure caused by the expansion of the power grid / distribution capacity during power grid planning and expansion.

[0071] Optionally, the first power conversion device 200 may include, but is not limited to, a wind power conversion device, and the second power conversion device 300 may include, but is not limited to, a photovoltaic panel. The first power conversion device 200 and the second power conversion device 300 can convert at least one of solar energy, light energy, wind energy, thermal energy, tidal energy, biomass energy and mechanical energy into electrical energy.

[0072] Optionally, the energy storage device 100 can be used in, but is not limited to, energy storage power stations, hydropower / thermal / wind power generation systems, solar power generation systems, mobile power systems, smart home systems, or temporary power supply systems 500, and is also applied in multiple fields such as data centers, military equipment, aerospace, charging piles, and electric vehicles.

[0073] Optionally, the energy storage device 100 may include, but is not limited to, a battery integrated system consisting of energy storage cabinets, energy storage boxes, and energy storage prefabricated compartments composed of energy storage units 20. Figure 2(The energy storage device 100 is shown as an energy storage prefabricated compartment composed of energy storage units 20). The actual application form of the energy storage device 100 provided in this application embodiment can be, but is not limited to, the listed products, and can also be other application forms. This application embodiment does not strictly limit the application form of the energy storage device 100.

[0074] Optionally, the energy storage unit 20 may include, but is not limited to, battery modules, battery packs, etc., composed of battery cells; the battery cells are not limited to at least one of cylindrical, prismatic, prismatic, or other shaped batteries. The battery cells can be rechargeable batteries, which are battery cells that can be reactivated by charging after discharge and continue to be used. The battery cells can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc., and this application does not specifically limit their types.

[0075] In some implementations, such as Figure 2 As shown, the energy storage device 100 includes an energy storage container 10 and a plurality of energy storage units 20. The energy storage container 10 has a plurality of mounting positions 44 formed therein, which are used to accommodate the energy storage units 20, so that each energy storage unit 20 is fixed on the corresponding mounting position 44.

[0076] Among them, such as Figure 3 and Figure 4 As shown, the energy storage container 10 is provided with multiple partitions 70, which are fixed inside the energy storage container 10 to separate the battery compartment 10a, the electrical compartment 10b, and the cooling compartment 10c. The electrical compartment 10b and the cooling compartment 10c can be located on the same side or different sides of the battery compartment 10a in the width direction of the energy storage container 10 (i.e., the length direction of the support beam 314 described below).

[0077] The battery compartment 10a contains an installation position 44 for the energy storage unit 20 and a high-voltage junction box 60. The electrical compartment 10b contains a UPS (Uninterruptible Power System), a circuit breaker, an energy storage converter, etc. The energy storage converter is connected between the high-voltage junction box 60 and the circuit breaker, and the circuit breaker is used to connect to the external power grid. The high-voltage junction box 60 and the UPS are both connected to the energy storage unit 20.

[0078] The energy storage converter is connected to the high-voltage junction box 60, and the high-voltage junction box 60 is connected to the energy storage unit 20 via high-voltage wiring 61. The UPS is connected to the energy storage unit 20 via low-voltage wiring 62.

[0079] The cooling chamber 10c is equipped with a liquid cooling system, such as... Figure 3As shown, the liquid cooling system includes a cooling unit 101 and a liquid storage tank 102, as well as a liquid cooling pipeline (not shown) connected to the energy storage unit 20. The liquid storage tank 102 is used to store fluid, and the cooling unit 101 is used to cool the fluid in the liquid storage tank 102. The cooled fluid in the liquid storage tank 102 is circulated to the cooling plate of the energy storage unit 20 through the liquid cooling pipeline, so as to cool the energy storage unit 20 based on the cooled fluid.

[0080] The liquid cooling pipeline includes a primary pipeline, a secondary pipeline, and a tertiary pipeline. The primary pipeline connects to the liquid storage tank 102 and extends into the battery compartment 10a. Multiple secondary pipelines connect to the primary pipeline and extend to the position between each pair of adjacent inner frames 40. Multiple tertiary pipelines connect to the secondary pipelines and connect to the cooling plate of each energy storage unit 20.

[0081] In some implementations, such as Figure 4 As shown, the energy storage container 10 includes an outer frame 30 and multiple inner frames 40. The multiple inner frames 40 are arranged in the area enclosed by the outer frame 30 and are distributed at intervals along the width direction of the energy storage container 10 (i.e., the length direction of the support beam 314 as described below). Multiple mounting positions 44 are formed between two adjacent inner frames 40. The multiple mounting positions 44 are distributed in the height direction of the energy storage container 10 (i.e., the length direction of the column 33 as described below). Each mounting position 44 is used to fix an energy storage unit 20.

[0082] Among them, such as Figure 4 As shown, the outer frame 30 includes a bottom frame 31 and a top frame 32 disposed opposite to each other, and a plurality of columns 33 connecting the bottom frame 31 and the top frame 32. A plurality of inner frames 40 are fixed between the bottom frame 31 and the top frame 32, and a plurality of mounting positions 44 formed between two adjacent inner frames 40 are distributed along the length direction of the columns 33. As for the bottom frame 31 and the top frame 32 included in the outer frame 30, each of the above-mentioned partitions 70 is fixedly connected to the bottom frame 31 and the top frame 32 to divide the area enclosed by the outer frame 30 into a battery compartment 10a, an electrical compartment 10b, and a cooling compartment 10c.

[0083] A high-voltage junction box 60 can be installed between each pair of adjacent inner frames 40. Since multiple energy storage units 20 can be connected in series and parallel to form a battery cluster, multiple energy storage units 20 fixed between two adjacent inner frames 40 can form one battery cluster or two battery clusters. When two battery clusters are formed, the multiple high-voltage junction boxes are all in a one-to-two mode, so that they can be connected to the multiple energy storage units 20 included in the two corresponding battery clusters through one high-voltage junction box, thereby reducing the number of high-voltage junction boxes.

[0084] In addition, the energy storage container 10 also includes a bottom plate fixed to the bottom frame 31, a top plate fixed to the top frame 32, side plates (including a back plate opposite to the cabinet door and side end plates) fixed between the bottom frame 31 and the top frame 32, and a cabinet door fixed to the column 33.

[0085] The mounting positions 44 formed by the multiple inner frames 40 can all be exposed when the cabinet door is opened, so that after the cabinet door is opened, it is convenient for operators to assemble the energy storage unit 20 on any two adjacent mounting positions 44 formed by the inner frames 40, as well as to carry out subsequent maintenance on the energy storage unit 20 on the mounting position 44.

[0086] In some implementations, such as Figure 4 and Figure 5 As shown, the bottom frame 31 includes a front bottom crossbeam 311, a rear bottom crossbeam 312, and a pair of bottom longitudinal beams 313 that form a rectangular frame, as well as a support crossbeam 314 that is fixedly connected to the pair of bottom longitudinal beams 313.

[0087] Thus, the support beams 314 within the rectangular frame provide support within the area of ​​the rectangular frame, while also improving the structural strength of the bottom frame 31, thereby improving the structural strength of the outer frame 30 and ensuring the load-bearing capacity of the energy storage container 10 for multiple energy storage units 20.

[0088] Multiple inner frames 40 are spaced apart along the length of the supporting beams 314 to ensure the support of the supporting beams 314 on the multiple inner frames 40, thereby ensuring the stability of the multiple inner frames 40 fixed within the outer frame 30. The front bottom beams 311 and rear bottom beams 312 of the bottom frame 31 can be distinguished based on the assembly position of the cabinet doors of the energy storage container 10. Specifically, for the pair of bottom beams of the bottom frame 31 arranged parallel to the supporting beams 314, the bottom beam closer to the cabinet door is the front bottom beam 311, and the bottom beam farther from the cabinet door is the rear bottom beam 312.

[0089] In some embodiments, the distance from the support beam 314 to the front bottom beam 311 is less than the distance to the rear bottom beam 312.

[0090] Thus, the cabinet door is fixed on the side of the outer frame 30 near the front bottom crossbeam 311, so that by adjusting the position of the supporting crossbeam 314, the structural strength of the outer frame 30 on the side near the cabinet door is ensured, thereby ensuring the load-bearing effect of the energy storage container 10 on multiple energy storage units 20.

[0091] For example, the ratio between the distance from the support beam 314 to the rear bottom crossbeam 312 and the distance to the front bottom crossbeam 311 is greater than or equal to 1.5 and less than or equal to 2.3. For instance, the ratio between the distance from the support beam 314 to the rear bottom crossbeam 312 and the distance to the front bottom crossbeam 311 is 1.5, 1.8, 2.0, 2.2, 2.3, etc.

[0092] In some implementations, such as Figure 5 As shown, the bottom frame 31 also includes a plurality of supporting longitudinal beams 315 connected between the rear bottom crossbeam 312 and the front bottom crossbeam 311, and the plurality of supporting longitudinal beams 315 are all fixedly connected to the supporting crossbeam 314.

[0093] Thus, by setting up the supporting longitudinal beams 315, the structure of the bottom frame 31 is reinforced, the structural strength of the outer frame 30 is further improved, and the load-bearing effect of the energy storage container 10 on multiple energy storage units 20 is guaranteed.

[0094] Among them, multiple supporting longitudinal beams 315 correspond one-to-one with multiple inner frames 40, so that each inner frame 40 is supported and fixed on the supporting cross beam 314 and the corresponding supporting longitudinal beam 315, thereby ensuring the reliability of the bottom frame 31 in supporting multiple inner frames 40, and thus ensuring the reliability of the inner frame 40 in bearing the energy storage unit 20.

[0095] Each supporting longitudinal beam 315 can be either a one-piece structure or a separate structure. When the supporting longitudinal beam 315 is a one-piece structure, the supporting crossbeam 314 has a notch facing away from the top frame 32 and corresponding to each supporting longitudinal beam 315. Each supporting longitudinal beam 315 is fixed in the corresponding notch and is fixedly connected to the front bottom crossbeam 311 and the rear bottom crossbeam 312, respectively. When the supporting longitudinal beam 315 is a separate structure, such as... Figure 5 As shown, the support longitudinal beam 315 includes a first longitudinal beam 3151 and a second longitudinal beam 3152 located on different sides of the support crossbeam 314. The first longitudinal beam 3151 is fixedly connected to the front bottom crossbeam 311 and the support crossbeam 314 respectively, and the second longitudinal beam 3152 is fixedly connected to the rear bottom crossbeam 312 and the support crossbeam 314 respectively.

[0096] In some implementations, such as Figure 6 As shown, the inner frame 40 includes multiple vertical beams 41 and multiple fixed guide rails 42 that are fixedly connected. Specifically, the multiple vertical beams 41 are distributed at intervals along the depth direction of the energy storage container 10 (i.e., the length direction of the bottom longitudinal beam 313), and the multiple fixed guide rails 42 are distributed at intervals along the height direction of the energy storage container 10 (i.e., the height direction of the column 33). Each fixed guide rail 42 is fixedly connected to the multiple vertical beams 41, and two opposite fixed guide rails 42 on two adjacent inner frames 40 form an installation position 44.

[0097] In this way, multiple vertical beams 41 can be fixedly connected by fixed guide rails 42, which can also be used to support the energy storage unit 20, so as to realize the reuse of fixed guide rails 42. At the same time, while ensuring the reliability of supporting the energy storage unit 20, the structure of the inner frame 40 is simplified, which facilitates the lightweight design of the energy storage container 10.

[0098] Each fixed guide rail 42 can be fixedly connected to two, three, or all of the vertical beams 41. In conjunction with the aforementioned fixing of the inner frame 40 within the outer frame 30, the two ends of multiple vertical beams 41 can be fixedly connected to the bottom frame 31 and the top frame 32, respectively. Specifically, considering the supporting horizontal beam 314 and supporting vertical beam 315 included in the bottom frame 31, one of the multiple vertical beams 41 included in the inner frame 40 is supported and fixed to the supporting horizontal beam 314, and the remaining vertical beams 41 are supported and fixed to the supporting vertical beam 315, thereby ensuring the stability of the inner frame 40 fixed between the bottom frame 31 and the top frame 32. Furthermore, the plurality of inner frames 40 includes an outermost inner frame 40 located in the length direction of the supporting beam 314, and the outermost inner frame 40 includes a fixed guide rail 42 fixed to one side of the vertical beam 41 near an adjacent inner frame 40; among the plurality of inner frames 40, except for the outermost inner frame 40, each of the remaining inner frames 40 includes a fixed guide rail 42 fixed to both sides of the vertical beam 41 along the length direction of the supporting beam 314.

[0099] In some implementations, such as Figure 6 As shown, the inner frame 40 also includes multiple inclined beams 43, each of which is fixedly connected to multiple vertical beams 41.

[0100] Thus, the structural strength of the inner frame 40 is further improved by the reinforcement connection of the inclined beam 43 between multiple vertical beams 41. At the same time, the setting of the inclined beam 43 facilitates the structural stability of the energy storage container 10 when hoisting it.

[0101] To avoid interference with the fixed connection between the guide rail 42 and the vertical beam 41, the dimension of the inclined beam 43 is smaller than or equal to the dimension of the vertical beam 41 in the width direction of the energy storage container 10. Furthermore, the cross-sectional area of ​​the inclined beam 43 can be set to be greater than or equal to the cross-sectional area of ​​the vertical beam 41. This ensures that the structural strength of the inclined beam 43 is greater than that of the vertical beam 41. Consequently, during the hoisting of the energy storage container 10, since the hoisting position is located at the four corners of the energy storage container 10, the frame structure of the energy storage container 10 experiences a centrifugal force. Due to the inclined orientation of the inclined beam 43, it is simultaneously subjected to forces along the height and depth directions of the energy storage container 10. Therefore, based on the structural strength of the inclined beam 43, complete deformation of the heavily stressed inclined beam 43 is avoided. The cross-sections of both the inclined beam 43 and the vertical beam 41 are perpendicular to their own length direction.

[0102] In addition, in conjunction with the above, the distance from the supporting beam 314 to the front bottom beam 311 is less than the distance to the rear bottom beam 312. In order to ensure the balance of structural strength of the outer frame 30 on both sides of the supporting beam 314, multiple inclined beams 43 can be designed asymmetrically on both sides of the supporting beam 314. That is, all the inclined beams 43 on the side of the supporting beam 314 near the front bottom beam 311 are asymmetrical with all the inclined beams 43 on the side of the supporting vertical beam 41 near the rear bottom beam 312.

[0103] In some implementations, such as Figure 7 , Figure 8 and Figure 9 As shown, a connecting beam 45 close to the bottom frame 31 connects two adjacent inner frames 40; the energy storage container 10 also includes multiple high-voltage box brackets 50, each high-voltage box bracket 50 is located between two adjacent inner frames 40 and is fixed on the connecting beam 45 and the supporting beam 314.

[0104] In this way, the support beam 314 included in the bottom frame 31 can be used to fix the high voltage box bracket 50, and then to fix the high voltage junction box 60 separately. This allows the inner frame 40 and the high voltage box bracket 50 to be supported at different points on the support beam 314, thereby reducing the strength requirements of the support beam 314 and avoiding excessive stress on local points on the support beam 314, which could cause deformation and ensure the structural stability of the energy storage container 10.

[0105] In this configuration, the connecting beam 45, in conjunction with the aforementioned inner frame 40, is located on the side of all fixed guide rails 42 within the inner frame 40 closest to the bottom frame 31. Both ends of the connecting beam 45 are fixedly connected to the vertical beams 41 of two adjacent inner frames 40. Furthermore, both ends of the connecting beam 45 are fixedly connected to two opposing vertical beams 41 on two adjacent inner frames 40 along the width direction of the energy storage container 10, ensuring the parallel arrangement of the connecting beam 45 and the supporting beam 314, thereby guaranteeing the stability of the high-voltage box bracket 50 fixed on the connecting beam 45 and the supporting beam 314. Moreover, considering the rectangular frame included in the aforementioned bottom frame 31, the connecting beam 45 can be located on the side of the supporting beam 314 closest to the front bottom beam 311, i.e., the connecting beam 45 is located on the side of the supporting beam 314 closest to the cabinet door, thus facilitating the assembly of the high-voltage junction box 60 on the high-voltage box bracket 50.

[0106] For example, the two ends of the connecting beam 45 are fixedly connected to the vertical beams 41 on the two adjacent inner frames 40 that are close to the cabinet doors, so that the connecting beam 45 is set close to the cabinet doors, while ensuring that it is set parallel to the supporting beam 314. This ensures the stability of the high-voltage box bracket 50 fixed on the connecting beam 45 and the supporting beam 314, and also facilitates the assembly of the high-voltage junction box 60 on the high-voltage box bracket 50.

[0107] In some implementations, such as Figure 8 and Figure 9 As shown, there is a gap between the high-voltage box bracket 50 and at least one adjacent inner frame 40, and a wire harness bracket 55 is provided in the gap between the high-voltage box bracket 50 and the adjacent inner frame 40.

[0108] Thus, by setting up the wire harness bracket 55, the high-voltage cable 61 connected to the high-voltage junction box is prevented from being suspended between the connecting beam 45 and the supporting beam 314, thereby preventing the high-voltage cable 61 from drooping due to gravity and causing pulling at the interface, and ensuring the reliability of the connection of the high-voltage cable 61.

[0109] The wire harness bracket 55 can be a flat bracket structure, an L-shaped bracket structure (i.e., a cross-section perpendicular to the length direction), or a U-shaped bracket structure, etc. When the wire harness bracket 55 is a flat bracket structure, its two sides can contact the high-voltage box bracket 50 and the inner frame 40 respectively to limit the high-voltage wiring 61 it carries; and when the cross-section of the wire harness bracket 55 is L-shaped, the wire harness bracket 55 contacts the high-voltage box bracket 50 or the inner frame 40 to limit the high-voltage wiring 61 it carries.

[0110] The wire harness bracket 55 can be supported or fixed to the high-voltage box bracket 50 to simplify the fixing of the wire harness bracket 55. Alternatively, the wire harness bracket 55 can be fixed to the connecting beam 45 and the supporting beam 314 to ensure the load-bearing length of the high-voltage cable 61 by the wire harness bracket 55. At the same time, by adjusting the distance between the wire harness bracket 55 and the high-voltage box bracket 50, the bending angle of the joint end of the high-voltage cable 61 on the wire harness bracket 55 can be adjusted to reduce the stress at the connection between the joint end of the high-voltage cable 61 and the high-voltage junction box 60, thus ensuring the reliability of the connection between the high-voltage cable 61 and the high-voltage junction box 60.

[0111] The wire harness support 55 can be a single-layer structure or a multi-layer structure with stacked and spaced intervals. For example, such as... Figure 9As shown, the wiring harness bracket 55 includes multiple shelves 551 spaced apart along the length of the column 33. This facilitates the distribution of high-voltage wiring 61 along the height of the energy storage container 10 through the stacked chrome-plated shelves 551, thereby improving space utilization and avoiding the difficulty of wiring due to overcrowding when high-voltage wiring 61 is on the same layer.

[0112] Furthermore, such as Figure 9 As shown, each shelf 551 is connected to a limiting plate 552, and the limiting plate 552 is located on the side of the shelf 551 away from the high-voltage box bracket 50. In this way, the limiting plate 552 can block the high-voltage wiring 61 installed on the shelf 551, ensuring the reliability of the high-voltage wiring 61 on the shelf 551.

[0113] In some implementations, such as Figure 9 As shown, the bottom frame 31 has a cavity 316 formed in the area between the supporting beam 314 and the connecting beam 45. This cavity 316 facilitates the exposed design of the high-voltage junction box 60 supported on the high-voltage box bracket 50 on the bottom side, thereby improving the heat dissipation of the high-voltage junction box 60 and ensuring its reliability.

[0114] Specifically, the cavity 316 in the region between the supporting beam 314 and the connecting beam 45 can be formed by combining the bottom plate included in the bottom frame 31. The bottom plate includes a high plate and a low plate. The high plate is positioned between the supporting beam 314 and the rear bottom beam 312, and is flush with the top wall of the supporting beam 314. The low plate is positioned between the supporting beam 314 and the front bottom beam 311, and is recessed into the top wall of the supporting beam 314, such that the distance between the low plate and the top frame 32 is greater than the distance between the high plate and the top frame 32. Thus, through the step arrangement between the low plate and the high plate, a groove is formed by the low plate, the front bottom beam 311, and the rear bottom beam 312, thereby forming the cavity 316 between the high-voltage box bracket 50 and the low plate, located between the supporting beam 314 and the connecting beam 45.

[0115] In addition, in conjunction with the stepped arrangement of the low-level plate and the high-level plate, a high-voltage wiring 61 can be arranged on the high-level plate and extended along the wiring harness bracket 55 to the front end of the high-voltage junction box 60; at the same time, a liquid cooling pipeline can be arranged on the low-level plate, thereby isolating the high-voltage wiring 61 from the liquid cooling pipeline and improving the safety of charging and discharging of the energy storage unit 20.

[0116] In some implementations, such as Figure 10 and Figure 11 As shown, a cable tray 56 is provided on the bottom side of the high-voltage box bracket 50 (i.e. the side away from the top frame 32). The cable tray 56 is fixedly connected to multiple inner frames 40 and has a cable outlet hole 57 corresponding to each high-voltage box bracket 50.

[0117] Thus, combined with the cavity 316 on the bottom side of the high-voltage box bracket 50, it not only facilitates effective heat dissipation of the high-voltage junction box 60, but also enables the reuse of the cavity 316 structure, improving space utilization. Furthermore, based on the constraint of the wiring harness routing by the wiring conduit 56, it is easy to improve the aesthetics inside the energy storage container 10, while also protecting the wiring harness routing, avoiding crosstalk in the wiring harness routing, and improving the safety of the wiring harness routing.

[0118] The wiring harness inside the conduit 56 can be a low-voltage wiring harness 62, etc., and the wiring harness inside the conduit 56 can be connected to the corresponding high-voltage junction box 60 through the outlet hole 57 corresponding to each high-voltage box bracket 50, thereby simplifying the electrical connection between the low-voltage wiring harness 62 and the high-voltage junction box 60.

[0119] Additionally, the outlet hole 57 on the cable tray 56 can be located on the side of the cable tray 56 facing away from the high-voltage box bracket 50, or it can be... Figure 11 As shown, it is located on the side of the cable conduit 56 near the connecting beam 45.

[0120] When the outlet hole 57 is located on the side of the conduit 56 facing away from the high-voltage box bracket 50, the low-voltage cable 62 passing through the outlet hole 57 can be routed from the conduit 56 away from the high-voltage box bracket 50 to the terminal of the high-voltage junction box 60. In this way, for the routed low-voltage cable 62, it can be ensured that the lowest point of the low-voltage cable 62 is lower than the outlet hole 57 on the conduit 56, thereby preventing condensate on the low-voltage cable 62 from flowing downstream and accumulating in the conduit 56.

[0121] When the outlet hole 57 is located on the side of the conduit 56 near the connecting beam 45, the low-voltage cable 62 passing through the outlet hole 57 can be directly routed to the terminal of the high-voltage junction box 60, thereby reducing the bending of the low-voltage cable 62 and facilitating the connection between the low-voltage cable 62 and the high-voltage junction box 60 on the cabinet door side.

[0122] To prevent the connecting beam 45 from obstructing the low-voltage cable 62 from exiting through the outlet hole 57, the cable conduit 56 can be located on the side of the connecting beam 45 away from the top frame 32 in the height direction of the energy storage container 10. Thus, by offsetting the cable conduit 56 and the connecting beam 45 in the height direction of the energy storage container 10, the connecting beam 45 is avoided, facilitating the exit of the low-voltage cable 62 from the cable conduit 56.

[0123] It should be noted that for the outlet hole 57 on the cable conduit 56, when the outlet hole 57 is located on the side facing away from the high-voltage box bracket 50 or on the side facing the connecting beam 45, the low-voltage cable 62 running through the cable conduit 56 must bypass the connecting beam 45. Therefore, the connecting beam 45 can be designed as a square tube beam structure to avoid scraping between the low-voltage cable 62 and the connecting beam 45, ensuring the integrity of the low-voltage cable 62. Of course, if... Figure 11 As shown, the connecting beam 45 is a U-shaped groove structure with its opening facing away from the high-voltage box bracket 50, and the edge of the groove of the connecting beam 45 has an inward flange 46. In this way, while ensuring that the connecting beam 45 reliably supports the high-voltage box bracket 50, it avoids the low-voltage cable 62 from rubbing against the connecting beam 45.

[0124] In some implementations, such as Figure 8 and Figure 9 As shown, the high-voltage box bracket 50 includes a pair of support rods 51, both of which are fixedly connected to the connecting beam 45 and the supporting beam 314.

[0125] Thus, the structure of the high-voltage box bracket 50 is simplified by using a pair of support rods 51, while also achieving a lightweight design for the high-voltage box bracket 50.

[0126] Among them, the support rod 51 can be an L-shaped structure in cross section, so that after a pair of support rods 51 are arranged opposite each other, the high voltage junction box 60 can be limited in a direction perpendicular to the length direction of the support rod 51, so as to ensure the reliability of the high voltage box bracket 50 supporting the high voltage junction box 60.

[0127] Among them, such as Figure 9 As shown, a first limiting structure 52 is provided at the end of the support rod 51 near the support beam 314, and / or a detachable second limiting structure 58 is provided at the end of the support rod 51 near the connecting beam 45. Thus, the first limiting structure 52 facilitates the limiting of the high-voltage junction box 60 on the high-voltage box bracket 50, improving the assembly efficiency of the high-voltage junction box 60; the second limiting structure 58 facilitates the fixing of the high-voltage junction box 60 at its front end, improving the stability of the high-voltage junction box 60 fixed on the high-voltage box bracket 50. For example, as... Figure 9 As shown, a first limiting structure 52 is provided on the end of the support rod 51 near the support beam 314, and a detachable second limiting structure 58 is provided on the end near the connecting beam 45.

[0128] For the case where the first limit structure 52 is set, it can be as follows: Figure 9As shown, the surface of the first limiting structure 52 facing the connecting beam 45 is provided with a buffer 53 (such as buffer foam, buffer spring, etc.) to avoid hard contact between the high voltage junction box 60 and the first limiting structure 52 when assembling the high voltage junction box 60, thereby avoiding damage to the high voltage junction box 60 caused by bumps or other impacts.

[0129] In the case of setting a second limiting structure 58, the second limiting structure 58 can be detachably fixed to the connecting crossbeam 45, or it can be as follows: Figure 9 As shown, a lower flap 54 is provided on the end of the support rod 51 near the connecting beam 45. The lower flap 54 is fixedly connected to the connecting beam 45, and the second limiting structure 58 is detachably fixed on the lower flap 54.

[0130] When the support rod 51 is equipped with a downward flap 54, structural damage to the connecting beam 45 can be avoided when fixing the second limiting structure 58, thereby ensuring the reliability of the connecting beam 45 in bearing the high voltage box bracket 50; at the same time, the fixing area between the high voltage box bracket 50 and the connecting beam 45 can be increased, thereby ensuring the reliability of fixing the high voltage box bracket 50.

[0131] This application also provides a power supply system 500, such as... Figure 12 As shown, the power supply system 500 includes: electrical equipment 510 and the energy storage device 100 described in the above embodiments, the energy storage device 100 being used to supply power to the electrical equipment 510.

[0132] The electrical equipment 510 is electrically connected to the energy storage device 100. Thus, in conjunction with the above description, the power supply system 500 of this application ensures the reliability of the power supply from the energy storage device 100 to the electrical equipment 510 during use, based on the structural stability of the energy storage container 10.

[0133] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium; "fix" can be a non-detachable fixation or a detachable fixation (such as non-destructive or destructive disassembly). Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0134] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0135] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the implementation of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0136] The above are merely preferred embodiments of the implementation methods of this application and are not intended to limit the implementation methods of this application. For those skilled in the art, various modifications and variations can be made to the implementation methods of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the implementation methods of this application should be included within the protection scope of the implementation methods of this application.

Claims

1. An energy storage container, characterized in that, include: The outer frame (30) includes a bottom frame (31) and a top frame (32) arranged opposite to each other, and a plurality of columns (33) connecting the bottom frame (31) and the top frame (32). The bottom frame (31) includes a front bottom crossbeam (311), a rear bottom crossbeam (312) and a pair of bottom longitudinal beams (313) forming a rectangular frame, and a support crossbeam (314) fixedly connected to the pair of bottom longitudinal beams (313). Multiple inner frames (40) are fixed between the bottom frame (31) and the top frame (32) and are spaced apart along the length of the supporting beam (314). Multiple mounting positions (44) are formed between two adjacent inner frames (40), and a connecting beam (45) close to the bottom frame (31) connects two adjacent inner frames (40). The mounting positions (44) are used to accommodate the energy storage unit (20). Multiple high-voltage box brackets (50), each of the high-voltage box brackets (50) is located between two adjacent inner frames (40) and is fixed on the connecting beam (45) and the supporting beam (314).

2. The energy storage container as described in claim 1, characterized in that, The bottom frame (31) has a cavity (316) formed in the area between the supporting crossbeam (314) and the connecting crossbeam (45).

3. The energy storage container as described in claim 2, characterized in that, The bottom side of the high-voltage box bracket (50) is provided with a cable conduit (56), which is fixedly connected to multiple inner frames (40) and has a cable outlet hole (57) corresponding to each of the high-voltage box brackets (50).

4. The energy storage container as described in claim 3, characterized in that, The outlet hole (57) is located on the side of the cable conduit (56) facing away from the high voltage box bracket (50).

5. The energy storage container as described in claim 3, characterized in that, The cable outlet (57) is located on the side of the cable conduit (56) near the connecting beam (45), and in the height direction of the energy storage container (10), the cable conduit (56) is located on the side of the connecting beam (45) away from the top frame (32).

6. The energy storage container as described in claim 5, characterized in that, The connecting beam (45) is a U-shaped groove structure with its opening facing away from the high-voltage box bracket (50), and the groove edge of the connecting beam (45) has an inward flange (46).

7. The energy storage container as described in claim 2, characterized in that, The high-voltage box bracket (50) includes a pair of support rods (51), both of which are fixedly connected to the connecting beam (45) and the supporting beam (314), and a first limiting structure (52) is provided on the end of the support rod (51) near the supporting beam (314).

8. The energy storage container as described in claim 7, characterized in that, A detachable second limiting structure (58) is provided on the end of the support rod (51) near the connecting beam (45).

9. The energy storage container as described in claim 8, characterized in that, A lower flap (54) is provided on the end of the support rod (51) near the connecting beam (45). The lower flap (54) is fixedly connected to the connecting beam (45), and the second limiting structure (58) is detachably fixed on the lower flap (54).

10. The energy storage container as described in any one of claims 1-9, characterized in that, There is a gap between the high voltage box bracket (50) and an adjacent inner frame (40), and a wire harness bracket (55) is provided in the gap between the high voltage box bracket (50) and the adjacent inner frame (40).

11. The energy storage container as described in claim 10, characterized in that, The wire harness bracket (55) is fixed to the connecting beam (45) and the supporting beam (314).

12. The energy storage container as described in claim 10, characterized in that, The wire harness bracket (55) includes a plurality of shelves (551) spaced apart along the length of the column (33), each shelf (551) is connected to a limiting plate (552), and the limiting plate (552) is located on the side of the shelf (551) away from the high voltage box bracket (50).

13. An energy storage device, characterized in that, include: The energy storage container (10) according to any one of claims 1-12; Multiple energy storage units (20), each of which is fixed on a mounting position (44) formed by two adjacent inner frames (40).

14. A power supply system, characterized in that, The power supply system (500) includes electrical equipment (510) and the energy storage device (100) as described in claim 13, wherein the energy storage device (100) supplies power to the electrical equipment (510).

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