Energy storage container, energy storage device and power supply system

Abstract

This application discloses an energy storage container, an energy storage device, and a power supply system, relating to the field of energy storage technology. The energy storage container includes: an outer frame comprising a bottom frame, a top frame, and multiple columns; multiple inner frames fixed between the bottom and top frames, each inner frame including vertical beams and fixed guide rails, with two opposing fixed guide rails on adjacent inner frames forming an installation position; a support member is provided on the bottom wall of the fixed guide rail, the support member being fixedly connected to the corresponding vertical beam, and a reinforcing part fixed to the bottom wall at the fixed end of the fixed guide rail, the reinforcing part being fixedly connected to an adjacent support member. In this application, the reliability of the fixed connection between the fixed guide rail and the vertical beam can be improved based on multiple support members, thereby ensuring the reliability of the fixed guide rail in supporting the energy storage unit; in addition, the design of the reinforcing part increases the structural strength of the fixed guide rail at the fixed end, while preventing the energy storage unit from swaying due to vibration.

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] Energy storage systems mainly consist of energy storage devices composed of energy storage containers 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 formed between adjacent frames. These mounting positions secure the energy storage units, ensuring the overall electrical capacity of the energy storage device. However, as the demand for electrical capacity continues to increase, the volume and capacity of the energy storage units within the energy storage container also increase, undoubtedly posing a greater challenge to the load-bearing reliability of the mounting positions. Utility Model Content

[0003] A primary objective of this application is to provide an energy storage container, energy storage device, and power supply system that improve the load-bearing reliability of the internal frame.

[0004] To achieve the above-mentioned objectives, this application adopts the following technical solution:

[0005] 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, a plurality of columns connecting the bottom frame and the top frame, and a cabinet door fixed to the columns; a plurality of inner frames fixed between the bottom frame and the top frame and spaced apart along the width direction of the energy storage container, each inner frame including vertical beams and fixed guide rails, the plurality of vertical beams spaced apart along the depth direction of the energy storage container, the plurality of fixed guide rails spaced apart along the height direction of the energy storage container, each fixed guide rail being fixedly connected to the plurality of vertical beams, and two opposite fixed guide rails on two adjacent inner frames forming a mounting position, the mounting position being used to accommodate an energy storage unit; wherein, a support member is provided on the bottom wall of the area where the fixed guide rail overlaps with the plurality of vertical beams, the plurality of support members are respectively fixedly connected to the corresponding plurality of vertical beams, and a reinforcing part fixed to the bottom wall is provided on the fixed end of the fixed guide rail near the cabinet door, the reinforcing part being fixedly connected to an adjacent support member and used to lock the energy storage unit on the mounting position.

[0006] In this embodiment, multiple support members are provided on the bottom wall of the fixed guide rail to support the fixed guide rail and improve the reliability of the fixed connection between the fixed guide rail and multiple vertical beams, thereby ensuring the reliability of the fixed guide rail in bearing the energy storage unit and thus ensuring the load-bearing reliability of the inner frame. In addition, the reinforcing part provided on the fixed end of the fixed guide rail increases the structural strength of the fixed guide rail at the fixed end, ensuring the reliability of locking the energy storage unit and preventing the energy storage unit from swinging due to shaking at the fixed end of the fixed guide rail.

[0007] According to one embodiment of this application, the reinforcing part includes a body plate, and a first bent plate and a second bent plate connected to the body plate. The first bent plate and the second bent plate are arranged opposite to each other along the length direction of the fixed guide rail. The body plate is fixedly connected to the bottom wall of the fixed end of the fixed guide rail. The first bent plate is fixedly connected to an adjacent support member. The second bent plate is provided with a locking hole for locking the energy storage unit on the mounting position.

[0008] In this embodiment, the structural strength of the reinforcing part is ensured by the first bending plate and the second bending plate, thereby ensuring the reinforcing effect of the reinforcing part on the fixed end of the fixed guide rail.

[0009] According to one embodiment of this application, the body plate, the first bending plate and the second bending plate are connected to form a U-shape, and the side of the body plate, the side of the first bending plate and the side of the second bending plate are all fixedly connected to the bottom wall of the fixed end on the fixed guide rail.

[0010] In this embodiment, the main body plate is essentially erected on the bottom wall of the fixed guide rail. Based on the bending strength of the main body plate in the plane, the bending strength of the fixed end on the fixed guide rail is guaranteed, thereby reducing or even avoiding the shaking of the fixed end of the fixed guide rail.

[0011] According to one embodiment of this application, the reinforcing part further includes a first reinforcing plate, which is located on the side of the body plate away from the fixed guide rail; the first reinforcing plate is fixedly connected to the side of the body plate, the first bending plate, and the second bending plate away from the fixed guide rail.

[0012] In this embodiment, an edge parallel to the length direction of the fixed guide rail can be formed at the connection between the first reinforcing plate and the main body plate. This edge further ensures the structural strength of the fixed end of the fixed guide rail and prevents the fixed end of the fixed guide rail from shaking.

[0013] According to one embodiment of this application, in the width direction of the energy storage container, the maximum dimension of the reinforcing portion is less than or equal to the dimension of the fixed guide rail.

[0014] In this embodiment, interference between the reinforcing part and the energy storage unit on the lower side of the fixed guide rail is avoided, thereby ensuring the reliability of the energy storage unit assembly on the fixed guide rail.

[0015] According to one embodiment of this application, in the width direction of the energy storage container, the second bending plate is located on the side of the body plate away from the vertical beam connected to the fixed guide rail; both the first bending plate and the second bending plate have a first clearance area at least at the corners away from the body plate and the fixed guide rail.

[0016] In this embodiment of the application, by setting the first avoidance area on the second bending plate, interference between the reinforcing part and the energy storage unit assembled on the lower side of the fixed guide rail is avoided while ensuring the structural strength of the reinforcing part.

[0017] According to one embodiment of this application, the support member includes a fixed plate and a pair of wall panels connected to the fixed plate, and the pair of wall panels are arranged opposite to each other along the length direction of the fixed guide rail; the fixed plate is fixedly connected to the corresponding vertical beam, and the sides of the pair of wall panels away from the bottom frame are fixedly connected to the bottom wall of the fixed guide rail.

[0018] In this embodiment, while the fixed plate is fixedly connected to the vertical beam, the wall panel can be erected on the bottom wall of the fixed guide rail, thereby ensuring the reliability of the support member's support for the fixed guide rail based on the bending resistance effect of the upright plate in the plane.

[0019] According to one embodiment of this application, in the width direction of the energy storage container, the maximum dimension of the support member is less than or equal to the dimension of the fixed guide rail.

[0020] According to one embodiment of this application, the wall panel has a second clearance zone at least at the corners away from the corresponding vertical beam and the fixed guide rail.

[0021] In this embodiment, by setting a second clearance area on the wall panel of the support member, interference between the support member and the energy storage unit assembled on the lower side of the fixed guide rail is avoided while ensuring the structural strength of the support member.

[0022] According to one embodiment of this application, the fixed guide rail has a bearing surface and a limiting surface arranged perpendicularly to each other. The bearing surface is used to bear the energy storage unit, and the limiting surface is used to limit the energy storage unit in the width direction of the energy storage container.

[0023] According to one embodiment of this application, a guide protrusion is provided on the limiting surface.

[0024] In this embodiment, when the energy storage unit is supported on the bearing surface, the energy storage unit can be guided by the guide protrusion provided on the limiting surface, thereby improving the assembly efficiency of the energy storage unit.

[0025] According to one embodiment of this application, the inner frame further includes a limiting member, which includes a fixedly connected upright plate and a limiting plate; the upright plate is fixedly fitted to the limiting surface and is located on the side of the guide protrusion away from the cabinet door; the limiting plate has an abutting surface facing the bearing surface, and the edge of the abutting surface near the cabinet door is inclined in a direction away from the bearing surface.

[0026] In this embodiment of the application, when assembling the energy storage unit on the fixed guide rail, the abutment and positioning of the energy storage unit can be achieved based on the abutment surface of the limiting plate, thereby achieving the positioning of the energy storage unit in the depth and height directions of the energy storage container, ensuring the stability of the energy storage unit assembled on the fixed guide rail.

[0027] According to one embodiment of this application, the reinforcing part has a fixing surface facing the cabinet door, at least one of the supporting members has a contact surface facing the corresponding vertical beam, and both the fixing surface and the contact surface are provided with a conductive film.

[0028] In this embodiment, the energy storage unit is grounded based on a conductive film, thereby avoiding the accumulation of static electricity on the inner frame and improving the power safety of the energy storage unit.

[0029] According to one embodiment of this application, the inner frame further includes a locking member, which is detachably connected to the reinforcing part and is used for fixed connection with the energy storage unit.

[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 1This 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 7 This is a schematic diagram of another internal frame structure according to an exemplary embodiment.

[0041] Figure 8 This is a schematic diagram of an axonal structure of an inner frame according to an exemplary embodiment.

[0042] Figure 9 yes Figure 8 The diagram shows a partially enlarged structural schematic of the inner frame.

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

[0044] Figure 11 yes Figure 10 The diagram shows a partially enlarged structural schematic of the inner frame.

[0045] Figure 12 This is a schematic diagram of another inner frame structure according to an exemplary embodiment.

[0046] Figure 13 yes Figure 12 The diagram shows a partially enlarged structural schematic of the inner frame.

[0047] Figure 14 This is a schematic diagram of a power supply system according to an exemplary embodiment.

[0048] The reference numerals in the attached figures are explained as follows:

[0049] 1000. Energy storage system;

[0050] 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;

[0051] 10. Energy storage container; 20. Energy storage unit; 30. Outer frame; 40. Inner frame;

[0052] 10a. Battery compartment; 10b. Electrical compartment; 10c. Cooling compartment;

[0053] 101. Cooling unit; 102. Liquid storage tank;

[0054] 31. Base frame; 32. Top frame; 33. Uprights; 34. Cabinet doors;

[0055] 311. Front bottom crossbeam; 312. Rear bottom crossbeam; 313. Bottom longitudinal beam; 314. Support crossbeam; 315. Support longitudinal beam;

[0056] 3151, First longitudinal beam; 3152, Second longitudinal beam;

[0057] 41. Vertical beam; 42. Fixed guide rail; 43. Inclined beam; 44. Support component; 45. Reinforcing part; 46. Limiting component; 47. Mounting position; 48. Locking component;

[0058] 421. Bearing surface; 422. Limiting surface; 423. Guide protrusion;

[0059] 441. Fixed plate; 442. Wall panel; 443. Second clearance zone;

[0060] 451. Body plate; 452. First bending plate; 453. Second bending plate; 454. First reinforcing plate; 455. First clearance area; 456. Locking hole;

[0061] 461. Vertical plate; 462. Limiting plate; 463. Abutment surface. Detailed Implementation

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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:

[0067] (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.

[0068] (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.

[0069] (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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 47 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 47.

[0079] Among them, such as Figure 3 and Figure 4 As shown, the energy storage container 10 is provided with multiple partitions 60, 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 may be located on the same side or different sides of the battery compartment 10a in the width direction Y of the energy storage container 10.

[0080] The battery compartment 10a contains an installation position 47 for the energy storage unit 20 and a high-voltage junction box. 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 and the circuit breaker, and the circuit breaker is used to connect to the external power grid. The high-voltage junction box and the UPS are both connected to the energy storage unit 20.

[0081] The energy storage converter is connected to the high-voltage junction box, and the high-voltage junction box is connected to the energy storage unit 20 via high-voltage wiring. The UPS is connected to the energy storage unit 20 via low-voltage wiring.

[0082] 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.

[0083] 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.

[0084] 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 Y of the energy storage container 10. Multiple mounting positions 47 are formed between two adjacent inner frames 40. The multiple mounting positions 47 are distributed in the height direction H of the energy storage container 10. Each mounting position 47 is used to fix an energy storage unit 20.

[0085] Among them, such as Figure 4 As shown, 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. A plurality of inner frames 40 are fixed between the bottom frame 31 and the top frame 32. A plurality of mounting positions 47 formed between two adjacent inner frames 40 are distributed along the height direction H of the energy storage container 10. As for the bottom frame 31 and the top frame 32 included in the outer frame 30, each of the above-mentioned partitions 60 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.

[0086] A high-voltage junction box 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.

[0087] 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 fixed between the bottom frame 31 and the top frame 32 (including a back plate opposite to the cabinet door 34 and side end plates), and as such Figure 3 and Figure 4 As shown, cabinet door 34 is fixed on column 33.

[0088] The mounting positions 47 formed by the multiple inner frames 40 can all be exposed when the cabinet door 34 is opened, so that after the cabinet door 34 is opened, it is convenient for operators to assemble the energy storage unit 20 on any two adjacent mounting positions 47 formed by the inner frames 40, as well as to carry out subsequent maintenance on the energy storage unit 20 on the mounting position 47.

[0089] 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 connected to the pair of bottom longitudinal beams 313 within the rectangular frame.

[0090] Thus, based on the rectangular frame formed by the front bottom crossbeam 311, the rear bottom crossbeam 312, and a pair of bottom longitudinal beams 313, the support beams 314 connected to the pair of bottom longitudinal beams 313 provide support within the rectangular frame area, thereby improving the structural strength of the bottom frame 31 and thus improving the structural strength of the outer frame 30, ensuring the load-bearing effect of the energy storage container 10 on multiple energy storage units 20.

[0091] In this design, the width direction Y of the energy storage container 10 corresponds to the length direction of the supporting beam 314. This beam, combined with the supporting beam 314 included in the bottom frame 31, supports multiple inner frames 40, ensuring the stability of the inner frames 40 within the outer frame 30. Furthermore, the front bottom beam 311 and rear bottom beam 312 of the bottom frame 31 can be distinguished based on the assembly position of the cabinet door in the energy storage container 10. Specifically, for the pair of bottom beams of the bottom frame 31 arranged parallel to the supporting beam 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. That is, the cabinet door is fixed to the side of the outer frame 30 closest to the front bottom beam 311.

[0092] 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.

[0093] Thus, with the bottom frame 31 and top frame 32 having backplate support on the side near the rear bottom crossbeam 312, the support crossbeam 314 is adjusted to be relatively close to the front bottom crossbeam 311, that is, the support crossbeam 314 is adjusted to be set closer to the cabinet door 34. Based on the support of the inner frame 40 between the front bottom crossbeam 311 and the top frame 32, the structural strength of the outer frame 30 on the side near the cabinet door 34 is guaranteed, thereby ensuring the load-bearing effect of the energy storage container 10 on multiple energy storage units 20.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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 4 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.

[0098] In some implementations, such as Figure 6 As shown, the inner frame 40 includes vertical beams 41 and fixed guide rails 42. Multiple vertical beams 41 are distributed at intervals along the depth direction S (i.e., the length direction of the bottom longitudinal beam 313) of the energy storage container 10, and multiple fixed guide rails 42 are distributed at intervals along the height direction H (i.e., the length direction of the column 33) of the energy storage container 10. Each fixed guide rail 42 is fixedly connected to multiple vertical beams 41, and two opposite fixed guide rails 42 on adjacent inner frames 40 form an installation position 47.

[0099] 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.

[0100] 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. In addition, the plurality of inner frames 40 include an outermost inner frame 40 located in the length direction of the supporting beam 314 (i.e., the width direction Y of the energy storage container 10), 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 connecting vertical beam 41 along the length direction of the supporting beam 314.

[0101] In some implementations, such as Figure 7 As shown, the inner frame 40 also includes multiple inclined beams 43, each of which is fixedly connected to multiple vertical beams 41.

[0102] 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.

[0103] To avoid interference with the fixed connection between the fixed guide rail 42 and the vertical beam 41, the dimension of the inclined beam 43 in the width direction Y of the energy storage container 10 is smaller than or equal to the dimension of the vertical beam 41. 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 force that causes it to rotate towards the center. Based on the inclined arrangement of the connecting inclined beam 43, it is simultaneously subjected to a force along the height direction H and a force along the depth direction S of the energy storage container 10. Therefore, based on the structural strength of the connecting inclined beam 43, it is prevented that the inclined beam 43, subjected to greater force, will completely deform. The cross-sections of both the inclined beam 43 and the vertical beam 41 are perpendicular to their own length direction.

[0104] 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.

[0105] In some implementations, such as Figure 6 or Figure 7 As shown, a support member 44 is provided on the bottom wall of the area where the fixed guide rail 42 overlaps with multiple vertical beams 41. The multiple support members 44 are fixedly connected to the corresponding multiple vertical beams 41. A reinforcing part 45 is provided on the fixed end of the fixed guide rail 42 near the cabinet door 34 and is fixed to the bottom wall. The reinforcing part 45 is fixedly connected to an adjacent support member 44 and is used to lock the energy storage unit 20 on the mounting position 47.

[0106] Thus, by combining the multiple support members 44 provided on the bottom wall of the fixed guide rail 42, the fixed guide rail 42 is supported, and the reliability of the fixed connection between the fixed guide rail 42 and the multiple vertical beams 41 is improved, thereby ensuring the reliability of the fixed guide rail 42 in bearing the energy storage unit 20, and thus ensuring the load-bearing reliability of the inner frame 40. In addition, the reinforcing part 45 provided on the fixed end of the fixed guide rail 42 increases the structural strength of the fixed guide rail 42 at the fixed end, ensuring the reliability of locking the energy storage unit 20, and preventing the energy storage unit 20 from swinging due to shaking at the fixed end of the fixed guide rail 42. Furthermore, the fixed connection between the reinforcing part 45 and the adjacent support member 44 ensures the overall structural strength of the part of the fixed guide rail 42 that extends out to the outermost vertical beam 41, thereby further ensuring the structural strength of the fixed end of the fixed guide rail 42.

[0107] When the fixed guide rail 42 is fixedly connected to the vertical beam 41, it can be fixedly connected to the vertical beam 41 only through the support member 44, or the fixed guide rail 42 can be fixedly connected to the vertical beam 41 at the same time as the support member 44 is fixedly connected to the vertical beam 41, so as to increase the fixed area between the fixed guide rail 42 and the vertical beam 41 and further ensure the structural stability of the inner frame 40. In addition, the support member 44 and the vertical beam 41 can be fixedly connected by welding, or by rivets, bolts, etc.

[0108] The reinforcing part 45 and the adjacent supporting part 44 can be fixedly connected by welding, or by rivets, bolts, or other methods. Figure 8 and Figure 9 As shown, a detachable locking member 48 is provided on the reinforcing part 45. In this way, the energy storage unit 20 can be assembled on the fixed guide rail 42 when the locking member 48 is in the detached state, and after the energy storage unit 20 is supported on the fixed guide rail 42, the locking member 48 and the reinforcing part 45 are fixedly connected. At the same time, based on the fixed connection between the locking member 48 and the energy storage unit 20, the energy storage unit 20 is fixed on the fixed guide rail 42.

[0109] In addition, the reinforcing part 45 has a fixing surface facing the cabinet door 34, and at least one support member 44 has a contact surface facing the corresponding vertical beam 41. Both the fixing surface and the contact surface are provided with a conductive film (such as a conductive coating). Thus, after the locking member 48 is fixedly connected to the energy storage unit 20, the relative grounding of the energy storage unit 20 is achieved based on the electrical connection of the energy storage unit 20, the locking member 48, the reinforcing part 45, the fixed guide rail 42, and the support member 44, thereby avoiding the accumulation of static electricity on the inner frame 40 and improving the electrical safety of the energy storage unit 20.

[0110] In some implementations, such as Figure 10 and Figure 11 As shown, the reinforcing part 45 includes a body plate 451, and a first bent plate 452 and a second bent plate 453 connected to the body plate 451. The first bent plate 452 and the second bent plate 453 are arranged opposite each other along the length direction of the fixed guide rail 42 (i.e., the depth direction S of the energy storage container 10). The body plate 451 is fixedly connected to the bottom wall of the fixed end of the fixed guide rail 42. The first bent plate 452 is fixedly connected to an adjacent support member 44. The second bent plate 453 is provided with a locking hole 456, which is used to lock the energy storage unit 20 on the mounting position 47.

[0111] Thus, the first bending plate 452 and the second bending plate 453 ensure the structural strength of the reinforcing part 45, thereby ensuring the reinforcing effect of the reinforcing part 45 on the fixed end of the fixed guide rail 42.

[0112] In conjunction with the aforementioned conductive film, the surface of the second bent plate 453 facing away from the first bent plate 452 may have a conductive coating. Furthermore, the reinforcing part 45 may be an integrally bent structure or a structure formed by fixing multiple spliced ​​plates together (e.g., by welding). The connection between the main body plate 451 and the bottom wall of the fixed guide rail 42, as well as between the first bent plate 452 and an adjacent support member 44, may be fixed by welding or other methods to ensure the reliability of the connection between the reinforcing part 45 and the support member 44 and the fixed guide rail 42.

[0113] The main body plate 451, the first bent plate 452, and the second bent plate 453 are connected in a U-shape. When the main body plate 451 is fixedly connected to the bottom wall of the fixed guide rail 42, the main body plate 451 can be attached to the bottom wall of the fixed guide rail 42, and the edges of the attachment can be welded for fixation. In this case, only the main body plate 451 is fixedly connected to the fixed guide rail 42. Of course, it can also be as follows: Figure 11 As shown, the side of the main body plate 451 is welded and fixed to the bottom wall of the fixed guide rail 42. At this time, the side of the first bent plate 452 and the side of the second bent plate 453 are also welded and fixed to the bottom wall of the fixed guide rail 42. That is, the side of the main body plate 451, the side of the first bent plate 452, and the side of the second bent plate 453 are all fixedly connected to the bottom wall of the fixed end of the fixed guide rail 42.

[0114] When the side of the body plate 451 is fixedly connected to the bottom wall of the fixed guide rail 42, the body plate 451 is essentially erected on the bottom wall of the fixed guide rail 42. This ensures the bending strength of the fixed end of the fixed guide rail 42 based on the bending strength of the body plate 451 in the plane, thereby reducing or even preventing the fixed end of the fixed guide rail 42 from wobbling. Alternatively, when the side of the body plate 451 is fixedly connected to the bottom wall of the fixed guide rail 42, the body plate 451 can be fixed to the edge of the fixed guide rail 42 near the connected vertical beam 41.

[0115] In some implementations, such as Figure 11 As shown, the reinforcing part 45 also includes a first reinforcing plate 454, which is located on the side of the main body plate 451 away from the fixed guide rail 42; the first reinforcing plate 454 is fixedly connected to the sides of the main body plate 451, the first bending plate 452, and the second bending plate 453 away from the fixed guide rail 42.

[0116] In this way, an edge parallel to the length direction of the fixed guide rail 42 can be formed at the connection between the first reinforcing plate 454 and the main body plate 451, thereby further ensuring the structural strength of the fixed end of the fixed guide rail 42 based on the formed edge, and preventing the fixed end of the fixed guide rail 42 from shaking.

[0117] The side of the main body plate 451 is fixedly connected to the bottom wall of the fixed guide rail 42. The first reinforcing plate 454 can be a structure obtained by bending the main body plate 451, that is, the first reinforcing plate 454 and the main body plate 451 are an integral structure. Of course, the first reinforcing plate 454 can also be a structure connected to the main body plate 451 by welding or other means. When the first reinforcing plate 454 and the main body plate 451 are an integral structure, it is easier to ensure the bending resistance of the reinforcing part 45, thereby ensuring the bending resistance of the fixed end on the fixed guide rail 42, so as to reduce or even avoid the wobbling of the fixed end of the fixed guide rail 42.

[0118] In some embodiments, the reinforcing part 45 further includes a second reinforcing plate, which is located on the side of the main body plate 451 near the fixed guide rail 42. The second reinforcing plate is fixedly connected to the bottom wall of the fixed end of the fixed guide rail 42, and is also fixedly connected to the sides of the main body plate 451, the first bending plate 452, and the second bending plate 453 near the fixed guide rail 42.

[0119] Thus, by setting the second reinforcing plate, it is easy to increase the fixing area between the reinforcing part 45 and the fixed guide rail 42, so as to ensure the reliability of the fixed connection between the reinforcing part 45 and the fixed guide rail 42; at the same time, based on the setting of the second reinforcing plate, it is easy to increase the plate thickness of the area where the fixed end of the fixed guide rail 42 is located, thereby improving the structural strength of the fixed end of the fixed guide rail 42 and reducing or even avoiding the wobbling of the fixed end of the fixed guide rail 42.

[0120] The second reinforcing plate can be a structure obtained by bending the main body plate 451, that is, the second reinforcing plate and the main body plate 451 are an integral structure; of course, the second reinforcing plate can also be a structure connected to the main body plate 451 by welding or other means. When the second reinforcing plate and the main body plate 451 are an integral structure, it is easier to ensure the reliability of the connection between the second reinforcing plate and the main body plate 451, thereby ensuring the reliability of the fixed connection between the reinforcing part 45 and the fixed guide rail 42.

[0121] In some embodiments, the maximum dimension of the reinforcing part 45 in the width direction Y of the energy storage container 10 is less than or equal to the dimension of the fixed guide rail 42.

[0122] Thus, when a reinforcing part 45 is provided at the fixed end of the fixed guide rail 42, it is easy to avoid interference between the reinforcing part 45 and the energy storage unit 20 on the lower side of the fixed guide rail 42, thereby ensuring the reliability of the energy storage unit 20 in the fixed guide rail 42.

[0123] In some implementations, such as Figure 11As shown, in the width direction Y of the energy storage container 10, the second bending plate 453 is located on the side of the main body plate 451 away from the vertical beam 41 connected to the fixed guide rail 42; the first bending plate 452 and the second bending plate 453 both have a first clearance area 455 at least at the corners away from the main body plate 451 and the fixed guide rail 42.

[0124] Thus, by setting the first clearance area 455 on the first bending plate 452 and the second bending plate 453, the structural strength of the reinforcing part 45 is guaranteed while avoiding interference with the energy storage unit 20 assembled on the lower side of the fixed guide rail 42.

[0125] The first clearance area 455 on the first bending plate 452 and the second bending plate 453 can be a clearance area formed only at the corner, or a clearance area extending from the edge away from the main body plate 451 to the edge away from the fixed guide rail 42, as long as it can avoid interference between the reinforcing part 45 and the energy storage unit 20 mounted on the lower side of the fixed guide rail 42. For example, Figure 11 As shown, the first clearance area 455 on the first bending plate 452 is a rectangular area, and the first clearance area 455 on the second bending plate 453 is an arc clearance area.

[0126] In some implementations, such as Figure 11 As shown, the support member 44 includes a fixed plate 441 and a pair of wall plates 442 connected to the fixed plate 441, and the pair of wall plates 442 are arranged opposite to each other along the length direction of the fixed guide rail 42; the fixed plate 441 is fixedly connected to the corresponding vertical beam 41, and the sides of the pair of wall plates 442 away from the bottom frame 31 are fixedly connected to the bottom wall of the fixed guide rail 42.

[0127] In this way, while the fixed plate 441 is fixedly connected to the vertical beam 41, the wall panel 442 can be erected on the bottom wall of the fixed guide rail 42. Based on the bending resistance of the vertical plate 461 in the plane, the reliability of the support member 44 supporting the fixed guide rail 42 is guaranteed.

[0128] The support member 44 can be an integrally bent U-shaped channel structure, or it can be a U-shaped channel structure formed by fixing multiple splicing plates together (e.g., by welding). Furthermore, the fixing plate 441 of the support member 44 and the corresponding vertical beam 41 can be detachably fixed (e.g., by bolts, rivets, etc.) or non-detachably fixed (e.g., by welding). The wall panel 442 of the support member 44 and the bottom wall of the fixed guide rail 42 can be fixedly connected by welding or other methods to ensure the reliability of the fixed connection between the support member 44 and the fixed guide rail 42.

[0129] In some embodiments, the maximum dimension of the support member 44 in the width direction Y of the energy storage container 10 is less than or equal to the dimension of the fixed guide rail 42.

[0130] Thus, when fixing the support member 44 to the bottom wall of the fixed guide rail 42, it is easy to avoid interference between the support member 44 and the energy storage unit 20 on the lower side of the fixed guide rail 42, thereby ensuring the reliability of the energy storage unit 20 assembled on the fixed guide rail 42.

[0131] In some implementations, such as Figure 11 As shown, the support member 44 includes a wall panel 442 that has a second clearance zone 443 at least at the corners away from the corresponding vertical beam 41 and fixed guide rail 42.

[0132] Thus, by setting the second clearance area 443 on the wall panel 442 of the support member 44, the structural strength of the support member 44 is ensured while avoiding interference with the energy storage unit 20 assembled on the lower side of the fixed guide rail 42.

[0133] The second clearance area 443 on the wall panel 442 of the support member 44 can be a clearance area formed only at the corner, or a clearance area extending from the edge away from the vertical beam 41 to the edge away from the fixed guide rail 42, as long as it can avoid interference between the support member 44 and the energy storage unit 20 assembled on the lower side of the fixed guide rail 42.

[0134] In some implementations, such as Figure 12 and Figure 13 As shown, the fixed guide rail 42 has a bearing surface 421 and a limiting surface 422 that are perpendicular to each other. The bearing surface 421 is used to support the energy storage unit 20, and the limiting surface 422 is used to limit the energy storage unit 20 in the width direction Y of the energy storage container 10.

[0135] Thus, for a pair of fixed guide rails 42 included in two adjacent inner frames 40, the energy storage unit 20 can be supported based on the bearing surface 421 included in the fixed guide rail 42, and the energy storage unit 20 can be limited based on the limiting surface 422 included in the fixed guide rail 42.

[0136] Furthermore, such as Figure 12 and Figure 13 As shown, a guide protrusion 423 is provided on the limiting surface 422. When the energy storage unit 20 is supported on the bearing surface 421, the guide protrusion 423 provided on the limiting surface 422 can guide the energy storage unit 20 and improve the assembly efficiency of the energy storage unit 20.

[0137] The orthographic projection of the guide protrusion 423 onto the bearing surface 421 can be a semi-ellipse, a quarter-ellipse, a right triangle, a trapezoid, etc., and the embodiments of this application do not limit this.

[0138] In some implementations, such as Figure 13As shown, the inner frame 40 also includes a limiting member 46, which includes a fixedly connected upright plate 461 and a limiting plate 462; the upright plate 461 is fixedly attached to the limiting surface 422 and is located on the side of the guide protrusion 423 away from the cabinet door 34; the limiting plate 462 has an abutting surface 463 facing the bearing surface 421, and the edge of the abutting surface 463 near the cabinet door 34 is inclined in the direction away from the bearing surface 421.

[0139] Thus, when assembling the energy storage unit 20 on the fixed guide rail 42, the abutment surface 463 of the limiting plate 462 can be used to limit the abutment of the energy storage unit 20, thereby limiting the energy storage unit 20 in the depth direction S and height direction H of the energy storage container 10, ensuring the stability of the energy storage unit 20 assembled on the fixed guide rail 42.

[0140] The upright plate 461 is fixedly attached to the limiting surface 422 of the fixed guide rail 42, and the thickness of the upright plate 461 is less than or equal to the maximum thickness of the guide protrusion 423 to avoid interference between the energy storage unit 20 and the upright plate 461. Preferably, the thickness of the upright plate 461 can be set to be equal to the maximum thickness of the guide protrusion 423. In this way, the energy storage unit 20 can be limited in the width direction Y of the energy storage container 10 based on the guide protrusion 423 and the upright plate 461, so as to further improve the reliability of limiting the energy storage unit 20 and thus ensure the stability of the energy storage unit 20 assembled on the fixed guide rail 42. In addition, when the energy storage unit 20 is abutted and limited based on the limiting surface 422 of the limiting plate 462, a limiting structure matching the limiting plate 462 can be provided on the energy storage unit 20 to ensure reliable limiting of the energy storage unit 20.

[0141] This application also provides a power supply system 500, such as... Figure 14 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] 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 by, include: The outer frame (30) includes a bottom frame (31) and a top frame (32) arranged opposite to each other, a plurality of columns (33) connecting the bottom frame (31) and the top frame (32), and cabinet doors (34) fixed on the columns (33); Multiple inner frames (40) are fixed between the bottom frame (31) and the top frame (32) and are spaced apart along the width direction (Y) of the energy storage container (10). Each inner frame (40) includes vertical beams (41) and fixed guide rails (42). The multiple vertical beams (41) are spaced apart along the depth direction (S) of the energy storage container (10), and the multiple fixed guide rails (42) are spaced apart along the height direction (H) of the energy storage container (10). 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 a mounting position (47). The mounting position (47) is used to accommodate the energy storage unit (20). Among them, the bottom wall of the fixed guide rail (42) overlapping with the multiple vertical beams (41) is provided with a support member (44), and the multiple support members (44) are respectively fixedly connected to the corresponding multiple vertical beams (41). The fixed end of the fixed guide rail (42) near the cabinet door (34) is provided with a reinforcing part (45) fixed to the bottom wall. The reinforcing part (45) is fixedly connected to an adjacent support member (44) and is used to lock the energy storage unit (20) on the mounting position (47).

2. The energy storage container (10) as described in claim 1, characterized in that, The reinforcing part (45) includes a body plate (451), and a first bent plate (452) and a second bent plate (453) connected to the body plate (451). The first bent plate (452) and the second bent plate (453) are arranged opposite to each other along the length direction of the fixed guide rail (42). The main body plate (451) is fixedly connected to the bottom wall of the fixed end of the fixed guide rail (42), the first bent plate (452) is fixedly connected to an adjacent support member (44), and the second bent plate (453) is provided with a locking hole (456), which is used to lock the energy storage unit (20) on the mounting position (47).

3. The energy storage container (10) of claim 2, wherein, The main body plate (451), the first bent plate (452) and the second bent plate (453) are connected in a U-shape, and the side of the main body plate (451), the side of the first bent plate (452) and the side of the second bent plate (453) are all fixedly connected to the bottom wall of the fixed end of the fixed guide rail (42).

4. The energy storage container (10) of claim 3, wherein, The reinforcing part (45) further includes a first reinforcing plate (454), which is located on the side of the body plate (451) away from the fixed guide rail (42); The first reinforcing plate (454) is fixedly connected to the side of the main body plate (451), the first bending plate (452), and the second bending plate (453) away from the fixed guide rail (42).

5. The energy storage container as described in claim 3, characterized in that, In the width direction (Y) of the energy storage container (10), the maximum dimension of the reinforcing part (45) is less than or equal to the dimension of the fixed guide rail (42).

6. The energy storage container (10) as described in claim 3, characterized in that, In the width direction (Y) of the energy storage container (10), the second bending plate (453) is located on the side of the body plate (451) away from the vertical beam (41) connected to the fixed guide rail (42); The first bending plate (452) and the second bending plate (453) each have a first clearance area (455) at least at the corners away from the body plate (451) and the fixed guide rail (42).

7. The energy storage container (10) as described in any one of claims 1-6, characterized in that, The support member (44) includes a fixed plate (441) and a pair of wall panels (442) connected to the fixed plate (441), and the pair of wall panels (442) are arranged opposite to each other along the length direction of the fixed guide rail (42); The fixing plate (441) is fixedly connected to the corresponding vertical beam (41), and the sides of the pair of wall panels (442) away from the bottom frame (31) are fixedly connected to the bottom wall of the fixing guide rail (42).

8. The energy storage container of claim 7, wherein, In the width direction (Y) of the energy storage container (10), the maximum dimension of the support member (44) is less than or equal to the dimension of the fixed guide rail (42).

9. The energy storage container (10) of claim 8, wherein, The wall panel (442) has a second clearance zone (443) at least at the corners away from the corresponding vertical beam (41) and the fixed guide rail (42).

10. The energy storage container as described in any one of claims 1-6, characterized in that, The fixed guide rail (42) has a bearing surface (421) and a limiting surface (422) arranged perpendicularly to each other. The bearing surface (421) is used to bear the energy storage unit (20), and the limiting surface (422) is used to limit the energy storage unit (20) in the width direction (Y) of the energy storage container (10).

11. The energy storage container as described in claim 10, characterized in that, The limiting surface (422) is provided with a guide protrusion (423).

12. The energy storage container as described in claim 11, characterized in that, The inner frame (40) also includes a limiting member (46), which includes a fixedly connected upright plate (461) and a limiting plate (462); The upright plate (461) is fixed to the limiting surface (422) and is located on the side of the guide protrusion (423) away from the cabinet door (34). The limiting plate (462) has an abutting surface (463) facing the bearing surface (421), and the edge of the abutting surface (463) near the cabinet door (34) is inclined in the direction away from the bearing surface (421).

13. The energy storage container (10) as described in any one of claims 1-6, characterized in that, The reinforcing part (45) has a fixing surface facing the cabinet door (34), and at least one of the supporting members (44) has a contact surface facing the corresponding vertical beam (41). Both the fixing surface and the contact surface are provided with a conductive film.

14. The energy storage container (10) as described in any one of claims 1-6, characterized in that, The inner frame (40) also includes a locking member (48), which is detachably connected to the reinforcing part (45) and is used for fixed connection with the energy storage unit (20).

15. An energy storage device, characterized by, include: The energy storage container (10) according to any one of claims 1-14; Multiple energy storage units (20), each of which is fixed on a mounting position (47) formed by two adjacent inner frames (40).

16. 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 15, wherein the energy storage device (100) supplies power to the electrical equipment (510).

Images