Energy storage container

Abstract

The utility model relates to the technical field of batteries, and provides an energy storage container which comprises a container body and at least two batteries, the container body comprises a frame and a shielding plate, the frame comprises a bearing frame and an inclined supporting beam, the bearing frame forms a containing space, the shielding plate covers the outer surface of the bearing frame, and the inclined supporting beam is arranged at the bottom of the bearing frame; the inclined supporting beams extend in the first direction in the plane perpendicular to the up-down direction, the length direction of the box body, the width direction of the box body and the up-down direction are perpendicular to one another, and the length direction and the width direction are both obliquely crossed with the first direction; the at least two batteries are arranged in the accommodating space. The inclined supporting beams extend in the first direction in the plane perpendicular to the vertical direction, the containing space is large so that batteries can be arranged as many as possible, the inclined supporting beams can bear loads and enhance the stability of the bottom of the bearing frame, the structural strength of the bearing frame is effectively improved, then the structural strength of the box body is improved, and the probability that the bottom of the box body deforms due to stress is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an energy storage container. Background Art

[0002] Batteries are increasingly used in life and production. For example, new energy vehicles equipped with batteries have been widely used, and batteries can be used to provide power for new energy vehicles in whole or in part. In addition, batteries are increasingly used in the field of energy storage, etc.

[0003] The energy storage container is equipped with batteries. It is a kind of electric energy storage and transfer equipment, and is an important part of the development of distributed energy, smart grid and energy Internet in the field of energy storage. Energy storage containers usually need to be transported from the production site to the use site by land and / or sea. As the weight of the battery increases, the force on the box also increases, and the box is prone to deformation. Utility Model Content

[0004] In view of this, an embodiment of the present application hopes to provide an energy storage container that can improve the structural strength of the container.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] The present application provides an energy storage container, including:

[0007] A box body, comprising a frame and a shielding plate, wherein the frame comprises a bearing frame and a diagonal bracing beam, wherein the bearing frame forms a receiving space, wherein the shielding plate covers the outer surface of the bearing frame, wherein the diagonal bracing beam is arranged at the bottom of the bearing frame, and wherein the diagonal bracing beam extends along a first direction in a plane perpendicular to the up-down direction, wherein the length direction of the box body, the width direction of the box body and the up-down direction are perpendicular to each other, and the length direction and the width direction are both obliquely intersecting with the first direction;

[0008] At least two batteries are arranged in the accommodation space.

[0009] The energy storage container provided in the embodiment of the present application has a box body using a frame and a shielding plate, the shielding plate covers the outer surface of the load-bearing frame to prevent foreign objects from contacting the batteries in the storage space, and the load-bearing frame is a hollow frame body with a light weight, which can reduce space occupation. The diagonal bracing beam extends along the first direction in a plane perpendicular to the up and down direction, and the storage space is large to arrange as many batteries as possible. The diagonal bracing beam can bear the load and strengthen the stability of the bottom of the load-bearing frame, effectively improving the structural strength of the load-bearing frame, thereby improving the structural strength of the box body, and reducing the probability of the bottom of the box body being deformed by force.

[0010] In some embodiments, at least two of the diagonal bracing beams are arranged along the width direction to form a support group, and at least two of the support groups are spaced apart along the length direction.

[0011] In this embodiment, the support group can improve the structural strength of each part of the support frame along the width direction, and at least two support groups can improve the structural strength of each part of the support frame along the length direction, thereby further improving the overall structural stability of the support frame.

[0012] In some embodiments, the frame includes a longitudinal reinforcement beam extending along the length direction, two of the longitudinal reinforcement beams are arranged at the bottom of the supporting frame, the two longitudinal reinforcement beams are arranged at intervals along the up and down directions, and at least one end of a portion of the diagonal bracing beam is clamped between the two longitudinal reinforcement beams.

[0013] In this embodiment, on the one hand, the two longitudinal reinforcing beams can further enhance the structural strength of the bottom of the frame; on the other hand, one end of the diagonal bracing beam is fixed by the two longitudinal reinforcing beams, which can enhance the connection stability of the diagonal bracing beam.

[0014] In some embodiments, the frame includes a transverse reinforcement beam extending along the width direction, one end of the transverse reinforcement beam is clamped between the two longitudinal reinforcement beams, and the other end of the transverse reinforcement beam is connected to the supporting frame.

[0015] In this embodiment, the transverse reinforcement beam can enhance the structural stability of the longitudinal reinforcement beam and enhance the bottom structural strength of the supporting frame.

[0016] In some embodiments, the frame includes at least two partition frames, and the at least two partition frames are spaced apart along the length direction to divide the accommodating space into at least two battery compartments, and the batteries are arranged in the battery compartments.

[0017] In this embodiment, the partition frame is connected to the support frame, and the partition frame can provide support for the support frame, thereby improving the overall structural strength of the support frame. The batteries are stacked in the battery compartment, which can improve the stability of the battery placement.

[0018] In some embodiments, the partition frame includes a square frame and a reinforcing column, the square frame is connected to the supporting frame, the reinforcing column is arranged in the space enclosed by the square frame, and the reinforcing column is connected to the side of the square frame along the up and down direction.

[0019] In this embodiment, the reinforcing column can effectively enhance the structural strength of the square frame, and the four sides of the square frame are all connected to the supporting frame, thereby effectively improving the structural strength of the supporting frame.

[0020] In some embodiments, the shielding plate covering the top of the carrier frame is a top plate, and the top plate includes at least two plate bodies laid flat in a horizontal direction, and the connection between the plate bodies is located above the partition frame.

[0021] In this embodiment, the connection between each plate body is located above the partition frame, and the partition frame can provide an upward supporting force for the connection between each plate body, thereby reducing the risk of deformation of the connection between the plate bodies.

[0022] In some embodiments, the frame includes a reinforcing plate, the reinforcing plate includes a first portion extending in an up-down direction and a second portion extending in a horizontal direction, and the reinforcing plate is disposed at at least one corner of the support frame.

[0023] In this embodiment, the reinforcement plate is substantially L-shaped, and is used to enhance the structural stability of the corners of the supporting frame.

[0024] In some embodiments, in the three directions of length, width, and up and down, the dimensions of the box in two of the directions are the same as those of a standard box of preset sizes, and the dimension of the box in another direction is smaller than that of a standard box of the preset sizes, and the preset sizes are 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet.

[0025] In this embodiment, on the one hand, when the box body is reduced in length or width relative to the standard box, the projected area of ​​the box body on the horizontal plane is smaller than the projected area of ​​the standard box on the horizontal plane. Under the same weight conditions, the pressure of the box body is greater than that of the standard box, and the diagonal bracing beam can effectively improve the bottom structural strength of the load-bearing frame, so that the bottom surface of the frame can bear a large load, and the box body can be stably placed on a load-bearing surface such as the ground. On the other hand, the dimensions of the box body in two directions are the same as those of a standard box of preset dimensions, and the dimension of the box body in another direction is smaller than that of a standard box of preset dimensions, that is, the dimension of the box body in only one direction is smaller than the preset dimension of the standard box, and the preset dimension of the standard box meets the requirements of the field standard and can be used across regions. In this way, without significantly changing the dimensions of the box body, the box body can reduce weight and match conventional transportation and transshipment equipment to meet the transportation needs of land and / or sea transportation.

[0026] In some embodiments, the total weight of all the batteries is 10 tons to 25 tons.

[0027] In this embodiment, on the one hand, the total weight of all batteries meets the transportation requirements, and the energy density of the energy storage container is relatively large. On the other hand, the bottom of the frame has good structural strength and can withstand batteries with a large total weight without deformation.

[0028] In some embodiments, at least one of a main control box, a distribution box, a liquid cooling unit, a master control box and a bus is not provided in the box.

[0029] In this embodiment, on the one hand, the space originally occupied by at least one of the main control box, the power distribution box, the liquid cooling unit, the master control box and the busbar in the box can be used to place batteries, thereby increasing the number of batteries in the box, maximizing the use of the internal space of the box, and further improving the energy density of the entire energy storage container. On the other hand, the number of device types inside the box is reduced, which can reduce the operation and maintenance frequency of the energy storage container during normal use.

[0030] In some embodiments, the accommodation space is filled with the battery, fire protection system, liquid cooling pipeline and cable system.

[0031] In this embodiment, the internal space of the box can be maximized to a certain extent, thereby improving the energy density of the energy storage container.

[0032] In some embodiments, the liquid cooling circuit includes a total liquid inlet pipeline, a total liquid return pipeline, a liquid inlet branch and a liquid return branch, each battery corresponds to a liquid inlet branch and a liquid return branch, each of the liquid inlet branches is connected to the total liquid inlet pipeline, and each of the liquid return branches is connected to the total liquid return pipeline.

[0033] In this embodiment, the liquid inlet branch and the liquid return branch allow each battery to contact the coolant for sufficient heat exchange. The coolant is concentrated into the box through the total liquid inlet pipeline, and then diverted through the liquid inlet branch, which can simplify the coolant inlet path, save pipelines, save space, and reduce the total weight of the liquid cooling pipeline. The coolant is concentrated out of the box through the total liquid return pipeline, which can simplify the coolant discharge path and save pipelines.

[0034] In some embodiments, two shielding plates facing different directions in the circumferential direction respectively form a maintenance port and a wire outlet, and both the maintenance port and the wire outlet are communicated with the accommodating space.

[0035] In this embodiment, the maintenance port and the wire outlet are respectively formed on the circumference of the box body, and at least two boxes are stacked in the up and down direction without blocking the maintenance port and the wire outlet. The maintenance port and the wire outlet are located on two shielding plates with different orientations and will not interfere with each other, which is not only convenient for personnel to enter and exit the maintenance port, but also convenient for external circuits.

[0036] In some embodiments, the energy storage container includes a thermal insulation layer, and the thermal insulation layer is disposed between the shielding plate and the supporting frame.

[0037] In this embodiment, the insulation layer is used to provide insulation and reduce heat exchange between the inside of the box and the external environment, so that the temperature of the battery during the charging and discharging process is affected as little as possible by the external environment, while improving the heat exchange efficiency of the liquid cooling unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a structural schematic diagram of a first energy storage container in an embodiment of the present application;

[0039] Figure 2 for Figure 1 Schematic diagram of part of the structure of the middle box;

[0040] Figure 3 for Figure 1 A schematic diagram of a frame of a first type of energy storage container is shown;

[0041] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0042] Figure 5 for Figure 1 A schematic diagram of a partial structure of a first energy storage container is shown;

[0043] Figure 6 for Figure 1 A schematic diagram of the first type of energy storage containers stacked in the up-down direction is shown;

[0044] Figure 7 This is a structural schematic diagram of a second energy storage container in an embodiment of the present application;

[0045] Figure 8 for Figure 7 A structural diagram of the second type of energy storage container from another perspective;

[0046] Fig. 9 This is a schematic diagram of the assembly of the second type of energy storage container in a plane perpendicular to the up and down directions.

[0047] Description of Reference Numerals

[0048] Box body 1; frame 11; carrier frame 111; accommodating space 111a; battery compartment 111ab; diagonal bracing beam 112; support group 1120; longitudinal reinforcing beam 113; transverse reinforcing beam 114; partition frame 115; square frame 1151; reinforcing column 1152; reinforcing plate 116; first part 1161; second part 1162; support beam 117; shielding plate 12; top plate 120; plate body 120a; outlet 121; door body 13; battery 2; cable system 3; liquid cooling pipeline 4; total liquid inlet pipeline 41; total liquid return pipeline 42; liquid inlet branch 43; liquid return branch 44. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0051] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] It should be noted that, in the embodiments of the present application, the length direction is represented by X, the width direction is represented by Y, and the up and down directions are represented by Z, wherein Z1 represents the top, the bottom is the opposite direction to the top, and Z2 represents the bottom.

[0054] In the related art, the energy density demand for energy storage containers is increasing. If the energy density of the energy storage containers is increased, the weight of the batteries in the container will increase, the force on the bottom of the container will increase, and the container will be easily deformed.

[0055] See also Figure 1 and Figure 5 An embodiment of the present application provides an energy storage container, which includes a box body 1 and at least two batteries 2.

[0056] See also Figures 1 to 5 The box body 1 includes a frame 11 and a shielding plate 12. The frame 11 includes a carrier 111 and a diagonal bracing beam 112. The carrier 111 forms a receiving space 111a. The shielding plate 12 covers the outer surface of the carrier 111. The diagonal bracing beam 112 is arranged at the bottom of the carrier 111, and the diagonal bracing beam 112 extends along a first direction in a plane perpendicular to the up-down direction Z. The length direction X of the box body 1, the width direction Y of the box body 1 and the up-down direction Z are perpendicular to each other, and the length direction X and the width direction Y are oblique to the first direction. At least two batteries 2 are arranged in the receiving space 111a.

[0057] The energy storage container provided in the embodiment of the present application has a box body 1 using a frame 11 and a shielding plate 12. The shielding plate 12 covers the outer surface of the carrier 111 to prevent foreign objects from contacting the battery 2 in the storage space 111a. The carrier 111 is a hollow frame with a light weight, which can reduce space occupancy. The diagonal bracing beam 112 extends along the first direction in a plane perpendicular to the up-down direction Z. The storage space 111a is large to arrange as many batteries 2 as possible. The diagonal bracing beam 112 can bear the load and strengthen the stability of the bottom of the carrier 111, effectively improving the structural strength of the carrier 111, thereby improving the structural strength of the box body 1 and reducing the probability of deformation of the bottom of the box body 1 under stress.

[0058] It should be noted that the outer contour of the box body 1 is a hexahedron. In the embodiments of the present application, unless otherwise stated, the length direction X and the width direction Y are based on the box body 1.

[0059] In the embodiment of the present application, the battery 2 may be a secondary battery, which refers to a battery that can be continuously used by activating the active material by charging after the battery is discharged.

[0060] The battery 2 may be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery and / or a lead storage battery.

[0061] The battery 2 may be a cylindrical battery, a prismatic battery or a battery of other shapes. The prismatic battery includes a square-shell battery or a multi-prismatic battery, and the multi-prismatic battery is, for example, a hexagonal battery, etc., and the present application has no particular limitation.

[0062] The battery 2 includes a housing, an electrode assembly and an electrolyte, wherein the housing is used to encapsulate the electrode assembly and the electrolyte and other components. Exemplarily, the electrode assembly includes a positive electrode, a negative electrode and a separator. During the charge and discharge process of the battery 2, active ions (such as lithium ions) in the electrolyte are inserted and removed back and forth between the positive electrode and the negative electrode to achieve charge and discharge.

[0063] In the related art, energy storage containers usually need to be transported from the production site to the use site by land and / or sea transportation. Usually, there are weight limits for land and sea transportation. For example, the load capacity of general road transport vehicles does not exceed 40 tons, and the maximum weight limit of first-class highways and bridges does not exceed 50 tons. This also includes the standard axle weight of 10 to 13 tons for transport vehicles. As a result, the weight of the energy storage container is further limited. The lifting equipment at the stacking site of the energy storage container loading terminal, such as the front crane and the rail crane, is limited to 35 to 45 tons. Usually, the energy storage container belongs to Category 9 hazardous chemicals. The Category 9 hazardous chemicals yard at the terminal is generally designed to be no more than 40 tons (Category 9 hazardous goods need to be isolated from ordinary items, that is, stored separately, and there are strict requirements for the environment, safety equipment, etc. in the storage area). In summary, if the power of the energy storage container in the relevant technology is to be increased, the weight of the energy storage container will also increase accordingly. Excessive weight will lead to a sharp increase in transportation difficulty and cost, which increases the requirements for the conventional transportation and transshipment equipment involved in the above-mentioned transportation process, such as the transportation vehicles, transportation roads, terminal yards, and lifting equipment. It is not easy to improve the transportation capacity of conventional transportation and transshipment equipment in the entire transportation process, and the cost of investment will be very high.

[0064] In one embodiment, please refer to Figure 1 and Figure 7 In the three directions of length direction X, width direction Y and up and down direction Z, the dimensions of the box body 1 in two of the directions are the same as the dimensions of a standard box of a preset size, and the dimension of the box body 1 in another direction is smaller than the dimension of a standard box of a preset size. The preset size is 10 feet, 20 feet, 30 feet, 40 feet or 45 feet.

[0065] A standard container is a universal container with preset dimensions that meets the standard requirements of at least two different regions or countries for transportation, including but not limited to land and / or sea transportation.

[0066] In this embodiment, on the one hand, when the box body 1 is reduced in the length direction X or the width direction Y dimension relative to the standard box, the projection area of ​​the box body 1 on the horizontal plane is smaller than the projection area of ​​the standard box on the horizontal plane. Under the same weight conditions, the pressure of the box body 1 is greater than that of the standard box, and the diagonal bracing beam 112 can effectively improve the bottom structural strength of the load-bearing frame 111, so that the bottom surface of the frame 11 can bear a large load, and the box body 1 can be stably placed on a load-bearing surface such as the ground. On the other hand, the dimensions of the box body 1 in two directions are the same as the dimensions of the standard box of the preset size, and the dimension of the box body 1 in another direction is smaller than the dimension of the standard box of the preset size, that is, the dimension of the box body 1 in only one direction is smaller than the preset dimension of the standard box, and the preset dimension of the standard box meets the requirements of the field standard and can be used across regions. In this way, without significantly changing the dimensions of the box body 1, the box body 1 can reduce the weight and match conventional transportation and transshipment equipment to meet the transportation needs of land and / or sea transportation.

[0067] It should be understood that the dimensions of the box body 1 in each direction are the dimensions of the outer contour shape of the box body 1 .

[0068] The preset size may be 10 feet, 20 feet, 30 feet, 40 feet or 45 feet. The above sizes may be defined according to the requirements of the field standards. For example, the preset size may be the standard requirements defined by the laws and regulations, departmental regulations, etc. of various countries regarding land transportation and / or sea transportation. For example, the preset sizes are described below:

[0069] 10 feet can include: the length direction X dimension is 2991mm, the tolerance is 0mm-5mm; the width direction Y dimension is 2438mm, the tolerance is 0mm-5mm; and the up and down direction Z dimension is not more than 2438mm; the tolerance is 0mm-5mm.

[0070] 20 feet can include: the length direction X dimension is 6058mm, the tolerance is 0mm-6mm; the width direction Y dimension is 2438mm, the tolerance is 0mm-5mm; and the vertical direction Z dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0071] 30 feet can include: the length direction X dimension is 9125mm, the tolerance is 0mm-10mm; the width direction Y dimension is 2438mm, the tolerance is 0mm-5mm; and the vertical direction Z dimension is 2896mm, 2591mm or no more than 2438mm; the tolerance is 0mm-5mm.

[0072] 40 feet can include: the length direction X dimension is 12192mm, the tolerance is 0mm-10mm; the width direction Y dimension is 2438mm, the tolerance is 0mm-5mm; and the up and down direction Z dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0073] 45 feet can include: the length direction X dimension is 13716mm, the tolerance is 0mm-10mm; the width direction Y dimension is 2438mm, the tolerance is 0mm-5mm; and the vertical direction Z dimension is 2591mm or 2896mm; the tolerance is 0mm-5mm.

[0074] In one embodiment, the total weight of all batteries 2 is 10 tons to 25 tons. Exemplarily, the total weight of all batteries 2 is 10 tons, 15 tons, 18 tons, 20 tons or 25 tons, etc. The total weight of all batteries 2 is the sum of the weights of all batteries 2 in a single box 1. On the one hand, the total weight of all batteries 2 meets the transportation requirements, and the energy density of the energy storage container is relatively large. On the other hand, the bottom of the frame 11 has good structural strength and can withstand batteries 2 with a large total weight without deformation.

[0075] In some embodiments, the weight of a single battery 2 is 5kg to 60kg. Exemplarily, the weight of a single battery 2 is 5kg, 10kg, 15kg, 20kg, 25kg, 30kg, 35kg, 40kg, 45kg, 50kg, 55kg or 60kg, etc. The weight of a single battery 2 is appropriate so that an appropriate amount of batteries 2 can be placed in the box 1, and the energy density is moderate when the transportation requirements are met.

[0076] It should be noted that the unit "kg" means kilogram.

[0077] In some embodiments, the number of batteries 2 is 416 to 2080. Exemplarily, the number of batteries 2 is 416, 500, 600, 700, 800, 950, 1000, 2000 or 2080, etc. The number of batteries 2 refers to the number of batteries 2 in a single box 1. The weight of a single battery 2 and the number of batteries 2 are reasonably matched so that the total weight of all batteries 2 meets the transportation requirements and the energy density per unit area of ​​the box 1 is improved.

[0078] For some examples, see Figure 1 , Figure 5 and Figure 6, the size of the box 1 in the length direction X and the width direction Y is the same as the size of the standard box of the preset size, and the size of the box 1 in the up-down direction Z is smaller than the size of the standard box of the preset size. For example, the size of the box 1 in the up-down direction Z can be one-third or one-half of the size of the standard box of the preset size, etc. In other words, the height of the box 1 is half or one-third of the height of the standard box. With such a design, on the one hand, each box 1 can be transported separately, and can be stacked in the up-down direction Z and / or assembled along a plane perpendicular to the up-down direction Z according to needs at the place of use, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the size of the box 1 in the length direction X and the width direction Y is the same as the size of the standard box of the preset size, and the floor space of a single box 1 is unchanged compared to the standard box, and the foundation of at least two boxes 1 stacked in the up-down direction Z is relatively stable. At least two boxes 1 are stacked in the up-down direction Z, which can reduce the total floor space and facilitate the space utilization of the place of use, such as the power station site.

[0079] In some embodiments, the dimensions of the box body 1 in the length direction X and the up-down direction Z are the same as the dimensions of a standard box of a preset size, and the dimension of the box body 1 in the width direction Y is smaller than the dimension of a standard box of a preset size. For example, the dimension of the box body 1 in the width direction Y can be one-third or one-half of the dimension of a standard box of a preset size, and so on. The width of the box body 1 is half or one-third of the width dimension of a standard box. On the one hand, each box body 1 can be transported separately, and can be stacked in the up-down direction Z and / or assembled along a plane perpendicular to the up-down direction Z according to needs at the place of use, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the floor space occupied by a single box body 1 is reduced, which is conducive to the space utilization at the place of use, such as a power station site.

[0080] For some examples, see Figures 7 to 9 , the dimensions of the box body 1 in the width direction Y and the vertical direction Z are the same as those of a standard box of a preset size, and the dimension of the box body 1 in the length direction X is smaller than that of a standard box of a preset size. For example, the dimension of the box body 1 in the length direction X can be one-third or one-half of the dimension of a standard box of a preset size, and so on. The length of the box body 1 is half or one-third of the length dimension of a standard box. On the one hand, each box body 1 can be transported separately, and can be stacked in the vertical direction Z or assembled along a plane perpendicular to the vertical direction Z according to needs at the place of use, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the floor space occupied by a single box body 1 is reduced, which is conducive to the space utilization at the place of use, such as a power station site.

[0081] In one embodiment, please refer to Figure 3 and Figure 4At least two diagonal bracing beams 112 are arranged along the width direction Y to form a support group 1120, and at least two support groups 1120 are arranged at intervals along the length direction X. The support group 1120 can improve the structural strength of each part of the carrier frame 111 along the width direction Y, and at least two support groups 1120 can improve the structural strength of each part of the carrier frame 111 along the length direction X, thereby further improving the overall structural stability of the carrier frame 111.

[0082] In some embodiments, at least two diagonal bracing beams 112 extend in the same direction, and at least two diagonal bracing beams 112 extend in different directions. In other words, the plurality of diagonal bracing beams 112 may have a plurality of extending directions.

[0083] The material of the support frame 111 is not limited. Exemplarily, the material of the support frame 111 includes but is not limited to metal materials, such as steel.

[0084] The material of the diagonal bracing beam 112 is not limited. For example, the material of the diagonal bracing beam 112 includes but is not limited to metal materials, such as steel.

[0085] The connection method between the diagonal bracing beam 112 and the supporting frame 111 is not limited. For example, the diagonal bracing beam 112 and the supporting frame 111 can be connected in a non-detachable manner or in a detachable manner. The non-detachable connection includes but is not limited to welding.

[0086] In one embodiment, please refer to Figure 3 and Figure 4 The frame 11 includes a longitudinal reinforcing beam 113 extending along the length direction X. The two longitudinal reinforcing beams 113 are both arranged at the bottom of the carrier 111. The two longitudinal reinforcing beams 113 are spaced apart along the up-down direction Z. At least one end of a portion of the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113. Exemplarily, both ends of the longitudinal reinforcing beam 113 along the length direction X are connected to the carrier 111. For example, one end of a portion of the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113, and one end of the remaining portion of the diagonal bracing beams 112 is not clamped between the two longitudinal reinforcing beams 113. For another example, one end of all the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113.

[0087] In this embodiment, on the one hand, the two longitudinal reinforcing beams 113 can further enhance the structural strength of the bottom of the frame 11 ; on the other hand, one end of the diagonal bracing beam 112 is fixed by the two longitudinal reinforcing beams 113 , which can enhance the connection stability of the diagonal bracing beam 112 .

[0088] The material of the longitudinal reinforcing beam 113 is not limited. Exemplarily, the material of the longitudinal reinforcing beam 113 includes but is not limited to metal materials, such as steel.

[0089] The connection method between the longitudinal reinforcing beam 113 and the carrier 111 is not limited. For example, the longitudinal reinforcing beam 113 and the carrier 111 can be connected in a non-detachable manner or in a detachable manner. The non-detachable connection includes but is not limited to welding.

[0090] In one embodiment, please refer to Figure 3 and Figure 4 In a single support group 1120, the two diagonal bracing beams 112 of the support group 1120 form a pair, the extension directions of the pair of diagonal bracing beams 112 intersect, and at least two pairs of diagonal bracing beams 112 are arranged along the width direction Y. In other words, the pair of diagonal bracing beams 112 of the support group 1120 are roughly in an eight-shaped shape, one end of one of the pair of diagonal bracing beams 112 is connected to the longitudinal reinforcing beam 113 and the other end is connected to the bearing frame 111, and both ends of the other of the pair of diagonal bracing beams 112 are connected to the bearing frame 111.

[0091] In one embodiment, please refer to Figure 3 and Figure 4 The frame 11 includes a transverse reinforcement beam 114 extending along the width direction Y, one end of the transverse reinforcement beam 114 is clamped between the two longitudinal reinforcement beams 113, and the other end of the transverse reinforcement beam 114 is connected to the carrier 111. The transverse reinforcement beam 114 can improve the structural stability of the longitudinal reinforcement beam 113 and improve the bottom structural strength of the carrier 111.

[0092] For some examples, see Figure 3 and Figure 4 At least two transverse reinforcing beams 114 are arranged at intervals along the length direction X. In this way, the structural stability of different parts of the longitudinal reinforcing beam 113 along the length direction X can be improved.

[0093] The longitudinal reinforcing beam 113 may be a plate.

[0094] The diagonal bracing beam 112 and the transverse reinforcing beam 114 can both be made of pipes with a quadrilateral cross-section. When the strength requirements are met, the wall thickness and / or cross-sectional area of ​​the pipe can be changed as required to avoid design redundancy caused by excessive wall thickness of the pipe.

[0095] For some examples, see Figures 2 to 4 The frame 11 includes at least two partition frames 115, which are arranged at intervals along the length direction X to divide the accommodating space 111a into at least two battery compartments 111ab, and the battery 2 is arranged in the battery compartment 111ab. The partition frame 115 is connected to the carrier 111, and the partition frame 115 can provide support for the carrier 111, thereby improving the overall structural strength of the carrier 111, and stacking the batteries 2 in the battery compartment 111ab can improve the stability of the battery 2.

[0096] For some examples, see Figures 2 to 4 The partition frame 115 includes a square frame 1151 and a reinforcing column 1152. The square frame 1151 is connected to the carrier 111. The reinforcing column 1152 is disposed in the space enclosed by the square frame 1151, and the reinforcing column 1152 is connected to the side of the square frame 1151 along the up-down direction Z. In this way, the reinforcing column 1152 can effectively strengthen the structural strength of the square frame 1151. The four sides of the square frame 1151 are all connected to the carrier 111, which effectively improves the structural strength of the carrier 111.

[0097] For some examples, see Figures 2 to 4 The shielding plate 12 covering the top of the carrier 111 is a top plate 120, and the top plate 120 includes at least two plate bodies 120a laid flat in the horizontal direction, and the connection between each plate body 120a is located above Z1 of the partition frame 115. Exemplarily, the connection between each plate body 120a is located above Z1 of the square frame 1151. The connection between each plate body 120a is located above Z1 of the partition frame 115, and the partition frame 115 can provide an upward support force for the connection between each plate body 120a, and the risk of deformation of the connection between the plate bodies 120a is reduced.

[0098] The connection method between the plates 120a includes but is not limited to welding.

[0099] In some embodiments, the support frame 111 may include 4 longitudinal rods extending along the length direction X, 4 vertical rods extending along the up-down direction Z, and 4 horizontal rods extending along the width direction Y, and the above-mentioned rods are collectively the edges of a hexahedron. In this way, the support frame 111 forms a hollow hexahedron, and the six faces of the hexahedron are all covered with the shielding plate 12. The longitudinal rods, vertical rods, and horizontal rods can all be made of pipes with a quadrilateral cross-section.

[0100] For some examples, see Figure 4 The frame 11 includes a reinforcing plate 116, which includes a first portion 1161 extending in the up-down direction Z and a second portion 1162 extending in the horizontal direction. The reinforcing plate 116 is provided at at least one corner of the carrier 111. The reinforcing plate 116 is generally L-shaped and is used to enhance the structural stability of the corner of the carrier 111.

[0101] In some embodiments, at least one of the main control box, distribution box, liquid cooling unit, master control box and bus is not provided in the box 1. In this embodiment, the present application breaks the convention, and at least one of the main control box, distribution box, liquid cooling unit, master control box and bus is not in the box 1. With such a design, on the one hand, the space originally occupied by at least one of the main control box, distribution box, liquid cooling unit, master control box and bus in the box 1 can be used to place the battery 2, thereby increasing the number of batteries 2 in the box 1, maximizing the use of the internal space of the box 1, and thus improving the energy density of the entire energy storage container. On the other hand, the number of device types inside the box 1 is reduced, which can reduce the operation and maintenance frequency of the energy storage container during normal use.

[0102] The main control box can be used to provide control functions for the battery 2. The distribution box can be used to provide power and circuit protection functions for electrical devices. The liquid cooling unit can be used to drive the flow of coolant. The main control box can be used to provide monitoring and management functions for the battery 2. The bus can be used to connect multiple cable branches of the energy storage container. It can be understood that the main control box, the distribution box, the liquid cooling unit, the main control box and the bus can all adopt structures in the prior art.

[0103] The coolant is a liquid used to exchange heat with the battery 2 , and for example, the coolant includes but is not limited to water.

[0104] For some examples, see Figure 3 and Figure 5 , the accommodation space 111a is filled with the battery 2, the fire protection system, the liquid cooling pipeline 4 and the cable system 3. In other words, only the battery 2, the fire protection system, the liquid cooling pipeline 4 and the cable system 3 can be arranged in the box 1, so that the internal space of the box 1 can be maximized to a certain extent, and the energy density of the energy storage container can be improved.

[0105] The fire protection system is used to provide fire extinguishing functions. The liquid cooling pipeline 4 is used to circulate the coolant to exchange heat with the battery 2. The liquid cooling pipeline 4 can be formed by pipeline connection. Exemplarily, the liquid cooling pipeline 4 can be connected to the external pipeline through a liquid cooling pipeline adapter plate. The cable system 3 is used to be electrically connected to the battery 2 to achieve power and signal transmission. The cable system 3 can be formed by cable connection. Exemplarily, the cable system 3 can be used to electrically connect to at least one of the main control box, distribution box, main control box and bus outside the box body 1. The cable system 3 may include a distribution line and a communication signal transmission line. Exemplarily, the cable system 3 can be connected to an external circuit through a high and low voltage output adapter plate.

[0106] For some examples, see Figure 5The liquid cooling pipeline 4 includes a total liquid inlet pipeline 41, a total liquid return pipeline 42, a liquid inlet branch 43 and a liquid return branch 44. Each battery 2 corresponds to a liquid inlet branch 43 and a liquid return branch 44. Each liquid inlet branch 43 is connected to the total liquid inlet pipeline 41, and each liquid return branch 44 is connected to the total liquid return pipeline 42. Exemplarily, if the number of batteries 2 is at least two, the number of liquid inlet branches 43 and the number of liquid return branches 44 are both at least two. In other words, the batteries 2, the liquid inlet branches 43 and the liquid return branches 44 can correspond one to one.

[0107] The coolant can enter the housing 1 through the main liquid inlet pipeline 41, and then flow through the battery 2 through the liquid inlet branch 43 to exchange heat with the battery 2. The coolant after heat exchange flows to the main liquid return pipeline 42 through the liquid return branch 44. The coolant in all the liquid return branches 44 can flow out of the housing 1 through the main liquid return pipeline 42.

[0108] In this embodiment, the liquid inlet branch 43 and the liquid return branch 44 enable each battery 2 to contact the coolant for sufficient heat exchange. The coolant is concentrated into the box body 1 through the total liquid inlet pipeline 41, and then divided through the liquid inlet branch 43, which can simplify the coolant inlet path, save pipelines, save space, and reduce the total weight of the liquid cooling pipeline 4. The coolant is concentrated out of the box body 1 through the total liquid return pipeline 42, which can simplify the coolant discharge path and save pipelines.

[0109] It can be understood that the battery 2, the fire fighting system and the cable system 3 can adopt the structures in the prior art.

[0110] For some examples, see Figures 1 to 3 , two shielding plates 12 facing different directions in the circumferential direction respectively form a maintenance port and a wire outlet 121, and both the maintenance port and the wire outlet 121 are connected to the accommodating space 111a. The maintenance port is a window for workers to enter and exit the accommodating space 111a to repair the internal components of the box body 1. The wire outlet 121 is a window for the cables inside the box body 1 to connect to the external circuit. The maintenance port and the wire outlet 121 are respectively formed in the circumference of the box body 1, and at least two boxes 1 stacked in the up and down direction Z will not block the maintenance port and the wire outlet 121. The maintenance port and the wire outlet 121 are located on two shielding plates 12 facing different directions and will not interfere with each other, which is not only convenient for people to enter and exit the maintenance port, but also convenient for external circuits.

[0111] It should be noted that the circumferential direction is the direction of a straight line extending along the up-down direction Z. Two shielding plates 12 that are different along the circumferential direction refer to two shielding plates 12 with different directions in the circumferential direction. Exemplarily, taking the first direction as the front-to-back direction and the second direction as the left-to-right direction as an example, for example, the two shielding plates 12 with different directions may be the front shielding plate 12 and the rear shielding plate 12 of the box body 1; for another example, the two shielding plates 12 with different directions may be the left shielding plate 12 and the right shielding plate 12 of the box body 1; for another example, the two shielding plates 12 with different directions may be one of the front shielding plate 12 or the rear shielding plate 12, and the other of the two shielding plates 12 may be the left shielding plate 12 or the right shielding plate 12.

[0112] For some examples, see Figure 1 The box body 1 includes a door body 13, which is used to selectively open or close the maintenance port. For example, one end of the door body 13 is rotatably connected to the box body 1, and the other end of the door body 13 can be opened and closed.

[0113] For some examples, see Figure 1 and Figure 2 A shielding plate 12 of the box body 1 along the width direction Y is formed with a maintenance port, and a shielding plate 12 of the box body 1 along the length direction X is formed with a wire outlet 121. With such a design, the maintenance port and the wire outlet 121 are respectively formed on two shielding plates 12 adjacent to each other in the circumferential direction. With such a design, the shielding plates 12 of the two boxes 1 away from the wire outlet 121 can abut against each other, reducing the gap between the boxes 1, making it easier to assemble the boxes 1 along the length direction X or the width direction Y at the place of use, thereby improving the site utilization rate of the place of use, such as a power station.

[0114] In some embodiments, the energy storage container includes an insulation layer, which is disposed between the shielding plate 12 and the carrier 111. The insulation layer is used to provide insulation and reduce heat exchange between the interior of the box 1 and the external environment, so that the temperature of the battery 2 during the charging and discharging process is as little affected by the external environment as possible, while improving the heat exchange efficiency of the liquid cooling unit.

[0115] In some embodiments, the insulation layer is a ceramic fiberboard. Compared with conventional rock wool, the ceramic fiberboard has a relatively smaller thickness while maintaining substantially the same flame retardant and thermal insulation capabilities, thereby further reducing the overall weight of the energy storage container.

[0116] In some embodiments, the shielding sheet 12 comprises a corrugated sheet, such as a low-corrugated sheet.

[0117] For some examples, see Figure 3The frame 11 includes a support beam 117 disposed on the top of the carrier 111 , and both ends of the support beam 117 along the width direction Y are connected to the carrier 111 . Exemplarily, the support beam 117 may extend along the width direction Y. The support beam 117 strengthens the structural strength of the top of the carrier 111 .

[0118] For some examples, see Fig. 9 , the stacking unit includes at least one box body 1 or at least two boxes 1 stacked along the up-down direction Z, and at least two stacking units can be assembled in a horizontal plane. The two stacking units constitute a module, and the outlets 121 of the two stacking units of the module can deviate from each other, and the end surfaces of the two stacking units of the module facing each other can abut. For example, the outlets 121 in the two stacking units of the module face the left side and the right side respectively, and the end surfaces of the two stacking units of the module facing each other can abut. For another example, the outlets 121 in the two stacking units of the module face the front side and the rear side respectively, and the end surfaces of the two stacking units of the module facing each other can abut.

[0119] It can be understood that when at least two stacking units are assembled on a horizontal plane, two adjacent boxes 1 are spaced apart in the front-to-back direction or the left-to-right direction to form an operation and maintenance channel, which can be used for workers to pass through, so that they can move to the box 1 that needs maintenance.

[0120] In some embodiments, two stacking units of the module are arranged along the front-to-back direction, and at least two modules can be arranged at intervals along the left-to-right direction. In the left-to-right direction, the interval space between two adjacent modules is an operation and maintenance channel.

[0121] In some other embodiments, two stacking units of the module are arranged along the left-right direction, and at least two modules can be arranged at intervals along the front-back direction. In the front-back direction, the interval space between two adjacent modules is an operation and maintenance channel.

[0122] As an example, see Figures 1 to 6 , a battery 2, a fire protection system, a liquid cooling pipeline 4 and a cable system 3 are arranged in the accommodating space 111a. The dimensions of the box 1 in the length direction X and the width direction Y are the same as those of a standard box of preset dimensions, and the dimension of the box 1 in the up-down direction Z is half of the dimension of a standard box of preset dimensions. Exemplarily, a flatbed truck with a horizontal load-bearing area of ​​20 feet is usually used to transport energy storage containers. The projection area of ​​the box 1 of the present application on the horizontal plane is the same as that of a standard box, which is 20 feet. At least two boxes 1 can be separately transported to the place of use, such as a power station site, by a 20-foot flatbed truck. The axle load distribution of the flatbed truck during transportation is more uniform, and transportation is safer. At least two boxes 1 are stacked in the up-down direction Z at the place of use to form a stacking unit. For example, two, three or more boxes 1 can be stacked in the up-down direction Z to form a stacking unit.

[0123] At least two stacking units can be assembled in a horizontal plane. Two stacking units constitute a module, and the outlets 121 of the two stacking units of the module can face away from each other, and the end surfaces of the two stacking units of the module facing each other can abut. For example, the outlets 121 in the two stacking units of the module face the left side and the right side respectively, and the end surfaces of the two stacking units of the module facing each other can abut. For another example, the outlets 121 in the two stacking units of the module face the front side and the rear side respectively, and the end surfaces of the two stacking units of the module facing each other can abut. With this design, the two stacking units of the module occupy an area of ​​approximately 40 feet, and the area utilization rate of the overall power station will be higher.

[0124] Taking sea transportation as an example, the storage fee is charged according to the standard container. If the size of the non-standard container is used, the storage fee is also charged according to the standard container. In this embodiment, the size of the box 1 in the vertical direction Z is half of the size of the 20-foot standard container. Two boxes 1 can be stacked in the vertical direction Z for sea transportation. The total height of the two boxes 1 stacked in the vertical direction Z is the same as the height of the 20-foot standard container. In this way, the two boxes 1 can still be charged as a 20-foot standard container during sea transportation.

[0125] It can be understood that according to the above embodiment, the size of the box 1 in the up-down direction Z can be one-third or one-quarter of the size of a standard box of a preset size, etc. During sea transportation, three or four boxes 1 can be stacked in the up-down direction Z so that the total height dimension of the multiple boxes 1 stacked in the up-down direction Z is the same as the height dimension of the standard box. It is also possible that multiple boxes 1 can still be charged as one standard box during sea transportation, saving transportation costs.

[0126] The box body 1 includes a frame 11 and at least two shielding plates 12. The frame 11 includes a load-bearing frame 111, a diagonal bracing beam 112, a longitudinal reinforcing beam 113, a transverse reinforcing beam 114, a partition frame 115, a reinforcing plate 116 and a supporting beam 117. The diagonal bracing beam 112, the longitudinal reinforcing beam 113, the transverse reinforcing beam 114, the partition frame 115, the reinforcing plate 116 and the supporting beam 117 can all improve the structural strength of the load-bearing frame 111, so that the entire frame 11 forms a cage-like structure with good overall rigidity, which can meet the requirements for the strength of the box body 1 in various complex stress environments such as earthquakes, random vibrations, shipping, and stacking. Each shielding plate 12 covers the outer surface of the load-bearing frame 111, and the diagonal bracing beam 112 is arranged at the bottom of the load-bearing frame 111, and the diagonal bracing beam 112 extends along the first direction in a plane perpendicular to the up-down direction Z. The frame 11 includes a longitudinal reinforcing beam 113 extending along the length direction X. Two longitudinal reinforcing beams 113 are both arranged at the bottom of the carrier 111. The two longitudinal reinforcing beams 113 are arranged at intervals along the vertical direction Z. At least one end of a portion of the diagonal bracing beam 112 is clamped between the two longitudinal reinforcing beams 113. In this way, the strength of the bottom of the box body 1 is improved by the diagonal bracing beam 112 and the longitudinal reinforcing beam 113. At least two boxes 1 stacked along the vertical direction Z can be placed more stably on a bearing surface such as the ground.

[0127] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. An energy storage container, characterized in that: include: A box body, comprising a frame and a shielding plate, wherein the frame comprises a bearing frame and a diagonal bracing beam, wherein the bearing frame forms a receiving space, wherein the shielding plate covers the outer surface of the bearing frame, wherein the diagonal bracing beam is arranged at the bottom of the bearing frame, and wherein the diagonal bracing beam extends along a first direction in a plane perpendicular to the up-down direction, wherein the length direction of the box body, the width direction of the box body and the up-down direction are perpendicular to each other, and the length direction and the width direction are both obliquely intersecting with the first direction; At least two batteries are arranged in the accommodation space.

2. The energy storage container according to claim 1, characterized in that: At least two of the diagonal bracing beams are arranged along the width direction to form a support group, and at least two of the support groups are spaced apart along the length direction.

3. The energy storage container according to claim 1, characterized in that: The frame includes a longitudinal reinforcing beam extending along the length direction, two of the longitudinal reinforcing beams are arranged at the bottom of the supporting frame, the two longitudinal reinforcing beams are arranged at intervals along the up and down directions, and at least one end of a portion of the diagonal bracing beam is clamped between the two longitudinal reinforcing beams.

4. The energy storage container according to claim 3, characterized in that: The frame includes a transverse reinforcement beam extending in the width direction, one end of the transverse reinforcement beam is clamped between the two longitudinal reinforcement beams, and the other end of the transverse reinforcement beam is connected to the bearing frame.

5. The energy storage container according to claim 1, characterized in that: The frame includes at least two partition frames, and the at least two partition frames are arranged at intervals along the length direction to divide the accommodating space into at least two battery compartments, and the batteries are arranged in the battery compartments.

6. The energy storage container according to claim 5, characterized in that: The partition frame includes a square frame and a reinforcing column. The square frame is connected to the supporting frame. The reinforcing column is arranged in the space surrounded by the square frame, and the reinforcing column is connected to the side of the square frame along the up and down direction.

7. The energy storage container according to claim 5, characterized in that: The shielding plate covering the top of the carrier is a top plate, and the top plate includes at least two plate bodies laid flat in a horizontal direction, and the connection between the plate bodies is located above the partition frame.

8. The energy storage container according to claim 1, characterized in that: The frame includes a reinforcing plate, the reinforcing plate includes a first portion extending in an up-down direction and a second portion extending in a horizontal direction, and the reinforcing plate is disposed at at least one corner of the carrier.

9. The energy storage container according to claim 1, characterized in that: In the three directions of length, width and up and down, the dimensions of the box in two of the directions are the same as those of a standard box of preset sizes, and the dimension of the box in another direction is smaller than that of a standard box of the preset sizes, and the preset sizes are 10 feet, 20 feet, 30 feet, 40 feet or 45 feet.

10. The energy storage container according to claim 1, characterized in that: The total weight of all said batteries is between 10 and 25 tons.

11. The energy storage container according to claim 1, characterized in that: At least one of a main control box, a distribution box, a liquid cooling unit, a master control box and a busbar is not arranged in the box.

12. The energy storage container according to claim 1, characterized in that: The accommodation space is filled with the battery, fire protection system, liquid cooling pipeline and cable system.

13. The energy storage container according to claim 12, characterized in that: The liquid cooling pipeline includes a total liquid inlet pipeline, a total liquid return pipeline, a liquid inlet branch and a liquid return branch. Each battery corresponds to a liquid inlet branch and a liquid return branch. Each of the liquid inlet branches is connected to the total liquid inlet pipeline, and each of the liquid return branches is connected to the total liquid return pipeline.

14. The energy storage container according to any one of claims 1 to 13, characterized in that: A maintenance port and a wire outlet are formed on the two shielding plates facing different directions in the circumferential direction, respectively. Both the maintenance port and the wire outlet are communicated with the accommodating space.

15. The energy storage container according to any one of claims 1 to 13, characterized in that: The energy storage container comprises a heat-insulating layer, and the heat-insulating layer is arranged between the shielding plate and the supporting frame.

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