Energy storage container

Abstract

An energy storage container. The energy storage container comprises a container body (1) and at least two batteries (2); the container body (1) comprises a frame (11) and a shielding plate (12); the frame (11) comprises a bearing frame (111) and a diagonal bracing beam (112), wherein the bearing frame (111) is formed with an accommodating space (111a), the shielding plate (12) covers an outer surface of the bearing frame (111), and the diagonal bracing beam (112) is arranged at the bottom of the bearing frame (111) and extends in a first direction in a plane perpendicular to a vertical direction; the length direction of the container body (1), the width direction of the container body (1) and the vertical direction are perpendicular to each other, and the length direction and the width direction are both obliquely intersected with the first direction; and the at least two batteries (2) are arranged in the accommodating space (111a). The diagonal bracing beam (112) extends in the first direction in the plane perpendicular to the vertical direction, such that the accommodating space (111a) is large enough to arrange therein as many batteries as possible; and the diagonal bracing beam (112) can bear a load and enhance the bottom stability of the bearing frame (111), such that the structural strength of the bearing frame (111) is effectively improved, thereby improving the structural strength of the container body (1), and reducing the probability of deformation of the bottom of the container body (1) due to stress.

Description

Energy storage container TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to an energy storage container. BACKGROUND

[0002] Batteries are increasingly widely 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 also increasingly used in the field of energy storage and the like.

[0003] The energy storage container is an energy storage and transfer device, and is an important part of the development of distributed energy, smart grid and energy internet in the field of energy storage. The energy storage container usually needs to be transported from the production place to the use place by land and / or sea transportation. As the weight of the battery increases, the stress on the box also increases, and the box is prone to deformation.

[0004] SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide an energy storage container capable of improving the structural strength of the box.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the embodiments of the present application is as follows:

[0007] The embodiments of the present application provide an energy storage container, comprising:

[0008] The box comprises a frame and a shielding plate, the frame comprises a bearing frame and a diagonal bracing beam, the bearing frame forms an accommodation space, the shielding plate covers the outer surface of the bearing frame, and the diagonal bracing beam is arranged at the bottom of the bearing frame and extends in a first direction in a plane perpendicular to the up-down direction, wherein the length direction of the box, the width direction of the box and the up-down direction are perpendicular to each other, and the length direction and the width direction are oblique to the first direction.

[0009] At least two batteries are arranged in the accommodation space.

[0010] The energy storage container provided by the embodiments of the present application adopts the frame and the shielding plate, the shielding plate covers the outer surface of the bearing frame to avoid the contact of external objects with the batteries in the accommodation space, the bearing frame is a hollow frame body, the self-weight is relatively light, and the space occupation can be reduced. The diagonal bracing beam extends in the first direction in the plane perpendicular to the up-down direction, the accommodation space is relatively 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 bearing frame, effectively improve the structural strength of the bearing frame, and then improve the structural strength of the box, and reduce the probability of stress deformation of the bottom of the box.

[0011] In some embodiments, at least two of the inclined support beams are arranged along a width direction to form a support group, and at least two of the support groups are arranged along a length direction.

[0012] In this embodiment, the support groups can improve the structural strength of the carrying frame at each part along the width direction, and the at least two support groups can improve the structural strength of the carrying frame at each part along the length direction, thereby further improving the overall structural stability of the carrying frame.

[0013] In some embodiments, the frame comprises longitudinal reinforcing beams extending along the length direction, both of the longitudinal reinforcing beams are arranged at the bottom of the carrying frame, both of the longitudinal reinforcing beams are arranged in a vertical direction, and one end of at least part of the inclined support beams is clamped between the two longitudinal reinforcing beams.

[0014] In this embodiment, on the one hand, the two longitudinal reinforcing beams can further improve the structural strength of the bottom of the frame; on the other hand, one end of the inclined support beam is fixed by the two longitudinal reinforcing beams, which can improve the connection stability of the inclined support beam.

[0015] In some embodiments, the frame comprises a transverse reinforcing beam extending along the width direction, one end of the transverse reinforcing beam is clamped between the two longitudinal reinforcing beams, and the other end of the transverse reinforcing beam is connected with the carrying frame.

[0016] In this embodiment, the transverse reinforcing beam can improve the structural stability of the longitudinal reinforcing beam and improve the structural strength of the bottom of the carrying frame.

[0017] In some embodiments, the frame comprises at least two partition frames, the at least two partition frames are arranged along the length direction to divide the accommodation space into at least two battery compartments, and the battery is arranged in the battery compartment.

[0018] In this embodiment, the partition frame is connected with the carrying frame, the partition frame can provide support force for the carrying frame to improve the overall structural strength of the carrying frame, and the battery is arranged in the battery compartment to improve the stability of the battery.

[0019] In some embodiments, the partition frame comprises a square frame and a reinforcing column, the square frame is connected with the carrying frame, the reinforcing column is arranged in a space surrounded by the square frame, and the reinforcing column is connected with the square frame along the side edges in the vertical direction.

[0020] In this embodiment, the reinforcing column can effectively strengthen the structural strength of the square frame, and the four edges of the square frame are connected with the carrying frame to effectively improve the structural strength of the carrying frame.

[0021] In some embodiments, the cover plate covering the top of the bearing frame is a top plate, and the top plate comprises at least two plate bodies arranged horizontally, and the connection of each plate body is above the partition frame.

[0022] In this embodiment, the connection of each plate body is above the partition frame, and the partition frame can provide upward support force for the connection of each plate body, reducing the risk of deformation of the connection of the plate body.

[0023] In some embodiments, the frame comprises a reinforcing plate, and the reinforcing plate comprises a first part extending in the vertical direction and a second part extending in the horizontal direction, and the reinforcing plate is arranged at at least one corner of the bearing frame.

[0024] In this embodiment, the reinforcing plate is substantially L-shaped, and is used to enhance the structural stability of the corner of the bearing frame.

[0025] In some embodiments, in the three directions of length, width and vertical direction, the size of the container in two of the directions is the same as the size of a standard container with a predetermined size, and the size of the container in the other direction is smaller than the size of the standard container with the predetermined size, and the predetermined size is 10 feet, 20 feet, 30 feet, 40 feet or 45 feet.

[0026] In this embodiment, on the one hand, when the size of the container in the length direction or the width direction is reduced relative to the standard container, the projection area of the container on the horizontal plane is smaller than the projection area of the standard container on the horizontal plane, and under the same weight condition, the pressure of the container is larger than that of the standard container, and the inclined strut beam can effectively improve the bottom structural strength of the bearing frame, so that the bottom surface of the frame can bear a larger load, and the container can be stably placed on the bearing surface such as the ground. On the other hand, the size of the container in two directions is the same as the size of a standard container with a predetermined size, and the size of the container in the other direction is smaller than the size of the standard container with the predetermined size, that is, the size of the container in only one direction is smaller than the predetermined size of the standard container, and the predetermined size of the standard container meets the requirements of the field standard and can be used across regions. In this way, without greatly changing the size of the container, the container can reduce the weight and match the conventional transportation and transfer equipment to meet the transportation requirements of land transportation and / or sea transportation.

[0027] In some embodiments, the total weight of all the batteries is 10-25 tons.

[0028] In this embodiment, on the one hand, the total weight of all the batteries meets the transportation requirements, and the energy density of the energy storage container is large. On the other hand, the bottom structure of the frame has good structural strength and can bear the total weight of the batteries without deformation.

[0029] In some embodiments, the cabinet does not contain at least one of the master control cabinet, the distribution cabinet, the liquid cooling unit, the general control cabinet and the busbar.

[0030] In this embodiment, on the one hand, the space originally occupied by at least one of the master control cabinet, the distribution cabinet, the liquid cooling unit, the general control cabinet and the busbar in the cabinet can be used to place the batteries, thereby increasing the number of batteries in the cabinet, maximizing the use of the internal space of the cabinet, and further improving the energy density of the entire energy storage container. On the other hand, the type of devices inside the cabinet is reduced, which can reduce the operation and maintenance frequency of the energy storage container during normal use.

[0031] In some embodiments, the accommodation space is filled by the batteries, the fire extinguishing system, the liquid cooling pipeline and the cable system.

[0032] In this embodiment, the internal space of the cabinet can be maximized to a certain extent, and the energy density of the energy storage container can be improved.

[0033] In some embodiments, the liquid cooling pipeline includes a general liquid inlet pipeline, a general liquid return pipeline, a liquid inlet branch and a liquid return branch, each battery corresponds to one liquid inlet branch and one liquid return branch, each liquid inlet branch communicates with the general liquid inlet pipeline, and each liquid return branch communicates with the general liquid return pipeline.

[0034] In this embodiment, the liquid inlet branch and the liquid return branch enable each battery to contact the cooling liquid to facilitate sufficient heat exchange. The cooling liquid is concentrated into the cabinet through the general liquid inlet pipeline, and then is distributed through the liquid inlet branch, which can simplify the cooling liquid inlet path, save the pipeline, save the space, and reduce the total weight of the liquid cooling pipeline. The cooling liquid is concentrated out of the cabinet through the general liquid return pipeline, which can simplify the cooling liquid outlet path and save the pipeline.

[0035] In some embodiments, a maintenance opening and a wire outlet are formed on the circumferential direction of the two different shielding plates, respectively, and the maintenance opening and the wire outlet both communicate with the accommodation space.

[0036] In this embodiment, the maintenance opening and the wire outlet are formed on the circumferential direction of the cabinet, and the stacking of the at least two cabinets in the up-down direction does not block the maintenance opening and the wire outlet. The maintenance opening and the wire outlet are located on the two different shielding plates, and do not interfere with each other. Not only is it convenient for personnel to enter and exit the maintenance opening, but also it is convenient for external circuits.

[0037] In some embodiments, the energy storage container includes a thermal insulation layer, and the thermal insulation layer is arranged between the shielding plate and the bearing frame.

[0038] In the embodiment, the heat preservation layer is used to provide heat preservation effect, reduce heat exchange between the inside of the box body and the outside environment, so as to realize that the temperature of the battery is affected by the outside environment as little as possible during the charging and discharging process, and improve the heat exchange efficiency of the liquid cooling unit. BRIEF DESCRIPTION OF DRAWINGS

[0039] Fig. 1 is a structural schematic diagram of a first energy storage container in an embodiment of the present application;

[0040] Fig. 2 is a schematic diagram of part of the structure of the box body in Fig. 1;

[0041] Fig. 3 is a schematic diagram of the frame of the first energy storage container shown in Fig. 1;

[0042] Fig. 4 is an enlarged schematic diagram of A in Fig. 3;

[0043] Fig. 5 is a schematic diagram of part of the structure of the first energy storage container shown in Fig. 1;

[0044] Fig. 6 is a schematic diagram of the first energy storage container shown in Fig. 1 stacked in the up-down direction;

[0045] Fig. 7 is a structural schematic diagram of a second energy storage container in an embodiment of the present application;

[0046] Fig. 8 is a structural schematic diagram of the second energy storage container in Fig. 7 from another perspective;

[0047] Fig. 9 is a schematic diagram of the assembly of the second energy storage container in a plane perpendicular to the up-down direction. DETAILED DESCRIPTION

[0048] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", etc. 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.

[0051] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0052] 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-down direction is represented by Z, wherein Z1 represents the upper side, the lower side is the opposite direction of the upper side, and Z2 represents the lower side.

[0053] In the related art, the energy density requirement of the energy storage container is increasing. If the energy density of the energy storage container is increased, the weight of the battery in the container will be increased, the stress on the bottom of the container will be increased, and the container is prone to deformation.

[0054] Referring to FIGS. 1 and 5, the present application provides an energy storage container, which comprises a container body 1 and at least two batteries 2.

[0055] Referring to FIGS. 1 to 5, the container body 1 comprises a frame 11 and a shielding plate 12. The frame 11 comprises a bearing frame 111 and a diagonal bracing beam 112. The bearing frame 111 is formed with an accommodation space 111a. The shielding plate 12 covers the outer surface of the bearing frame 111. The diagonal bracing beam 112 is arranged at the bottom of the bearing frame 111 and extends in a first direction in a plane perpendicular to the up-down direction Z. The length direction X of the container body 1, the width direction Y of the container body 1, and the up-down direction Z are perpendicular to each other. The length direction X and the width direction Y are both oblique to the first direction. The at least two batteries 2 are arranged in the accommodation space 111a.

[0056] The energy storage container provided by the embodiments of the present application adopts the frame 11 and the shielding plate 12. The shielding plate 12 covers the outer surface of the bearing frame 111 to avoid external objects from contacting the batteries 2 in the accommodation space 111a. The bearing frame 111 is a hollow frame body, which has a relatively light self-weight and can reduce the space occupation. The diagonal bracing beam 112 extends in the first direction in the plane perpendicular to the up-down direction Z. The accommodation space 111a is relatively 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 bearing frame 111, effectively improve the structural strength of the bearing frame 111, and further improve the structural strength of the container body 1, thereby reducing the probability of stress deformation of the bottom of the container body 1.

[0057] It should be noted that the outer contour shape of the container body 1 is hexahedral. In the embodiments of the present application, unless otherwise stated, the length direction X and the width direction Y are based on the container body 1.

[0058] In the embodiments of the present application, the battery 2 can be a secondary battery, which refers to a battery that can be used continuously by activating the active material through charging after discharging.

[0059] The battery 2 can 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-acid battery, etc.

[0060] The battery 2 can be a cylindrical battery, a prismatic battery, or a battery of other shapes. The prismatic battery includes a square battery or a multi-prismatic battery, such as a hexagonal prismatic battery, etc., which is not particularly limited in the present application.

[0061] The battery 2 includes a housing, an electrode assembly, and an electrolyte, and the housing is used to package the electrode assembly, the electrolyte, and other components. The electrode assembly includes a positive electrode, a negative electrode, and a separator, for example. During the charging and discharging of the battery 2, active ions (such as lithium ions) in the electrolyte are inserted and extracted between the positive electrode and the negative electrode, realizing charging and discharging.

[0062] In the related art, the energy storage container usually needs to be transported from the production place to the use place by land and / or sea transportation. There is a weight limit for transportation, for example, the load weight of a general road transport vehicle is not more than 40 tons, and the maximum weight limit of a first-class road and a bridge is not more than 50 tons, which includes the standard axle load of 10 to 13 tons of the transport vehicle. Therefore, the weight of the energy storage container is more limited. The lifting equipment in the stacking field of the energy storage container loading wharf, such as the front crane and the rail crane, is usually limited to 35 to 45 tons. Generally, the energy storage container belongs to the 9th hazardous chemical, and the wharf storage yard of the 9th hazardous chemical is generally designed to be not more than 40 tons (the 9th hazardous chemical needs to be isolated from ordinary goods, that is, stored separately, and the storage area has strict requirements on the environment, safety equipment, etc.). In summary, if the power of the energy storage container in the related art is to be improved, the weight of the energy storage container will also increase accordingly. The weight is too high, which will cause the transportation difficulty and cost to increase sharply. This puts forward higher requirements for the conventional transportation and transfer equipment involved in the whole transportation process, such as the transportation vehicle, the transportation road, the wharf storage yard, and the lifting equipment. It is not easy to improve the transportation capacity of the conventional transportation and transfer equipment in the whole transportation process, and the cost of investment will be very large.

[0063] In an embodiment, please refer to FIG. 1 and FIG. 7. In the three directions of the length direction X, the width direction Y, and the up-down direction Z, the size of the box body 1 in two of the directions is the same as the size of a standard box with a preset size, and the size of the box body 1 in the other direction is smaller than the size of a standard box with a preset size. The preset size is 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet.

[0064] A standard container refers to a general container with preset dimensions. The general container meets the standard requirements of at least two different regions or countries related to transportation, including but not limited to land transportation and / or sea transportation.

[0065] In this embodiment, in one aspect, the container 1 has a smaller size in the length direction X or the width direction Y relative to a standard container, and the projected area of the container 1 on a horizontal plane is smaller than that of the standard container. Under the same weight condition, the pressure of the container 1 is greater than that of the standard container, and the inclined support beam 112 can effectively improve the strength of the bottom structure of the bearing frame 111, so that the bottom surface of the frame 11 can bear a larger load, and the container 1 can be stably placed on a bearing surface such as the ground. In another aspect, the container 1 has the same size in two directions as the preset size of the standard container, and the size of the container 1 in the other direction is smaller than the preset size of the standard container, that is, the size of the container 1 in only one direction is smaller than the preset size of the standard container. The preset size of the standard container meets the standard requirements of the field and can be used across regions. In this way, without greatly changing the size of the container 1, the container 1 can reduce the weight and match the conventional transportation and transfer equipment to meet the transportation requirements of land transportation and / or sea transportation, etc.

[0066] It should be understood that the size of the container 1 in each direction is the size of the outer contour shape of the container 1.

[0067] The preset size can be 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet. The above sizes can be defined according to the standard requirements of the field, for example, the preset size can be the standard requirements defined by the laws and regulations, departmental rules, etc. related to land transportation and / or sea transportation of each country. For example, the following describes each preset size:

[0068] 10 feet can include: the size in the length direction X is 2991 mm, and the tolerance is 0 mm-5 mm; the size in the width direction Y is 2438 mm, and the tolerance is 0 mm-5 mm; and the size in the up-down direction Z is not greater than 2438 mm; and the tolerance is 0 mm-5 mm.

[0069] 20 feet can include: the size in the length direction X is 6058 mm, and the tolerance is 0 mm-6 mm; the size in the width direction Y is 2438 mm, and the tolerance is 0 mm-5 mm; and the size in the up-down direction Z is 2896 mm, 2591 mm, or not greater than 2438 mm; and the tolerance is 0 mm-5 mm.

[0070] 30 feet can include: the size in the length direction X is 9125 mm, and the tolerance is 0 mm-10 mm; the size in the width direction Y is 2438 mm, and the tolerance is 0 mm-5 mm; and the size in the up-down direction Z is 2896 mm, 2591 mm, or not greater than 2438 mm; and the tolerance is 0 mm-5 mm.

[0071] The 40 feet can include: a length direction X dimension of 12192mm, a tolerance of 0mm-10mm; a width direction Y dimension of 2438mm, a tolerance of 0mm-5mm; and an up-down direction Z dimension of 2896mm, 2591mm or no more than 2438mm; a tolerance of 0mm-5mm.

[0072] The 45 feet can include: a length direction X dimension of 13716mm, a tolerance of 0mm-10mm; a width direction Y dimension of 2438mm, a tolerance of 0mm-5mm; and an up-down direction Z dimension of 2591mm or 2896mm; a tolerance of 0mm-5mm.

[0073] In an embodiment, the total weight of all the batteries 2 is 10 tons to 25 tons. For example, the total weight of all the batteries 2 is 10 tons, 15 tons, 18 tons, 20 tons or 25 tons, etc. The total weight of all the batteries 2 is the sum of the weights of all the batteries 2 in a single box 1. On the one hand, the total weight of all the batteries 2 meets the transportation requirements, and the energy density of the energy storage container is large. On the other hand, the structural strength of the bottom of the frame 11 is good, and can bear the batteries 2 with large total weight without deformation.

[0074] In some embodiments, the weight of a single battery 2 is 5kg to 60kg. For example, 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 a proper amount of batteries 2 can be placed in the box 1, and the energy density is moderate under the condition that the transportation requirements are met.

[0075] It should be noted that the unit "kg" is kilogram.

[0076] In some embodiments, the number of batteries 2 is 416 to 2080. For example, 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 the batteries 2 meets the transportation requirements, and the energy density per unit area of the box 1 is improved.

[0077] In some embodiments, referring to FIG. 1, FIG. 5 and FIG. 6, the box 1 has the same size as a standard box in the length direction X and the width direction Y, and has a smaller size than the standard box in the height direction Z. For example, the size of the box 1 in the height direction Z can be one third or one half of the size of the standard box, etc. That is, the height of the box 1 is half or one third of the height of the standard box. In this way, on the one hand, each box 1 can be transported separately, and can be stacked in the height direction Z or assembled in a plane perpendicular to the height direction Z according to the needs at the use site, 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 that of the standard box, and the footprint of a single box 1 does not change compared with the standard box, and the base of at least two boxes 1 stacked in the height direction Z is relatively stable. Stacking at least two boxes 1 in the height direction Z can reduce the total footprint, which is beneficial to the space utilization of the use site, such as a power station site.

[0078] In some embodiments, referring to FIG. 1, FIG. 5 and FIG. 6, the box 1 has the same size as a standard box in the length direction X and the width direction Y, and has a smaller size than the standard box in the height direction Z. For example, the size of the box 1 in the height direction Z can be one third or one half of the size of the standard box, etc. That is, the height of the box 1 is half or one third of the height of the standard box. In this way, on the one hand, each box 1 can be transported separately, and can be stacked in the height direction Z or assembled in a plane perpendicular to the height direction Z according to the needs at the use site, 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 that of the standard box, and the footprint of a single box 1 does not change compared with the standard box, and the base of at least two boxes 1 stacked in the height direction Z is relatively stable. Stacking at least two boxes 1 in the height direction Z can reduce the total footprint, which is beneficial to the space utilization of the use site, such as a power station site.

[0079] In some embodiments, referring to FIG. 1, FIG. 5 and FIG. 6, the box 1 has the same size as a standard box in the length direction X and the width direction Y, and has a smaller size than the standard box in the height direction Z. For example, the size of the box 1 in the height direction Z can be one third or one half of the size of the standard box, etc. That is, the height of the box 1 is half or one third of the height of the standard box. In this way, on the one hand, each box 1 can be transported separately, and can be stacked in the height direction Z or assembled in a plane perpendicular to the height direction Z according to the needs at the use site, 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 that of the standard box, and the footprint of a single box 1 does not change compared with the standard box, and the base of at least two boxes 1 stacked in the height direction Z is relatively stable. Stacking at least two boxes 1 in the height direction Z can reduce the total footprint, which is beneficial to the space utilization of the use site, such as a power station site.

[0080] In an embodiment, referring to FIG. 3 and FIG. 4, the at least two inclined support beams 112 are arranged along the width direction Y to form a support group 1120, and the at least two support groups 1120 are arranged along the length direction X. The support group 1120 can improve the structural strength of the carrying frame 111 at each part along the width direction Y, and the at least two support groups 1120 can improve the structural strength of the carrying frame 111 at each part along the length direction X, thereby further improving the overall structural stability of the carrying frame 111.

[0081] In some embodiments, the at least two inclined support beams 112 have the same extension direction, and the at least two inclined support beams 112 have different extension directions. That is, the plurality of inclined support beams 112 can have a plurality of extension directions.

[0082] The material of the carrying frame 111 is not limited, and for example, the material of the carrying frame 111 includes but is not limited to a metal material such as steel.

[0083] The material of the inclined support beam 112 is not limited, and for example, the material of the inclined support beam 112 includes but is not limited to a metal material such as steel.

[0084] The connection mode of the inclined support beam 112 and the carrying frame 111 is not limited, and for example, the inclined support beam 112 and the carrying frame 111 can be connected in a non-detachable manner or a detachable manner. The non-detachable connection includes but is not limited to welding and the like.

[0085] In an embodiment, referring to FIG. 3 and FIG. 4, the frame 11 includes longitudinal reinforcing beams 113 extending along the length direction X, both of the longitudinal reinforcing beams 113 are arranged at the bottom of the carrying frame 111, both of the longitudinal reinforcing beams 113 are arranged along the up-down direction Z, and one end of at least part of the inclined support beams 112 is clamped between the two longitudinal reinforcing beams 113. For example, both ends of the longitudinal reinforcing beam 113 along the length direction X are connected with the carrying frame 111. For example, one end of part of the inclined support beams 112 is clamped between the two longitudinal reinforcing beams 113, and one end of the remaining part of the inclined support beams 112 is not clamped between the two longitudinal reinforcing beams 113. For example, one end of all the inclined support beams 112 is clamped between the two longitudinal reinforcing beams 113.

[0086] In this embodiment, on the one hand, the two longitudinal reinforcing beams 113 can further improve the structural strength of the bottom of the frame 11, and on the other hand, one end of the inclined support beam 112 is fixed by the two longitudinal reinforcing beams 113, which can improve the connection stability of the inclined support beam 112.

[0087] The material of the longitudinal reinforcing beam 113 is not limited, and for example, the material of the longitudinal reinforcing beam 113 includes but is not limited to a metal material such as steel.

[0088] The connection between the longitudinal reinforcing beam 113 and the bearing frame 111 is not limited, and is exemplarily non-detachable or detachable. The non-detachable connection includes, but is not limited to, welding, etc.

[0089] In an embodiment, referring to FIGS. 3 and 4, in the single support group 1120, two diagonal bracing beams 112 of the support group 1120 form a pair, the extension directions of the two diagonal bracing beams 112 of the pair intersect, and at least two pairs of diagonal bracing beams 112 are arranged along the width direction Y. That is, the two diagonal bracing beams 112 of the support group 1120 are substantially in a figure-eight shape, one end of one of the two 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 two diagonal bracing beams 112 are connected to the bearing frame 111.

[0090] In an embodiment, referring to FIGS. 3 and 4, the frame 11 includes a transverse reinforcing beam 114 extending along the width direction Y, one end of the transverse reinforcing beam 114 is clamped between two longitudinal reinforcing beams 113, and the other end of the transverse reinforcing beam 114 is connected to the bearing frame 111. The transverse reinforcing beam 114 can improve the structural stability of the longitudinal reinforcing beam 113 and the bottom structural strength of the bearing frame 111.

[0091] In some embodiments, referring to FIGS. 3 and 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.

[0092] The longitudinal reinforcing beam 113 can be a plate.

[0093] Both the diagonal bracing beam 112 and the transverse reinforcing beam 114 can adopt a pipe with a quadrilateral cross-sectional shape. In the case of meeting the strength requirement, the wall thickness and / or the cross-sectional area of the pipe can be changed according to the requirement, so as to avoid the design redundancy caused by the excessively thick wall thickness of the pipe.

[0094] In some embodiments, referring to FIGS. 2 to 4, the frame 11 includes at least two partition frames 115 arranged at intervals along the length direction X, so as to divide the accommodation 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 bearing frame 111, and the partition frame 115 can provide a supporting force for the bearing frame 111, so as to improve the overall structural strength of the bearing frame 111, and the battery 2 arranged in the battery compartment 111ab in a stacked manner can improve the stability of the battery 2.

[0095] In some embodiments, referring to FIGS. 2-4, the partition frame 115 includes a square frame 1151 connected to the carrier 111 and a reinforcing column 1152 disposed in a space enclosed by the square frame 1151 and connected to the square frame 1151 along the vertical direction Z. In this way, the reinforcing column 1152 can effectively strengthen the structural strength of the square frame 1151, and the four edges of the square frame 1151 are connected to the carrier 111, effectively improving the structural strength of the carrier 111.

[0096] In some embodiments, referring to FIGS. 2-4, the shielding plate 12 covering the top of the carrier 111 is a top plate 120 including at least two horizontally laid plate bodies 120a, and the connection of each plate body 120a is located above the partition frame 115 in the vertical direction Z1. For example, the connection of each plate body 120a is located above the square frame 1151 in the vertical direction Z1. The connection of each plate body 120a is located above the partition frame 115 in the vertical direction Z1, which can provide upward support to the connection of each plate body 120a, reducing the risk of deformation of the connection of each plate body 120a.

[0097] The connection between each plate body 120a includes but is not limited to welding.

[0098] In some embodiments, the carrier 111 can include four longitudinal rods extending along the length direction X, four vertical rods extending along the vertical direction Z, and four horizontal rods extending along the width direction Y, and the above rods collectively form the edges of a hexahedron. In this way, the carrier 111 forms a hollow hexahedron, and the six faces of the hexahedron are covered by the shielding plate 12. The longitudinal rods, vertical rods, and horizontal rods can all be made of tubes with a quadrilateral cross-section.

[0099] In some embodiments, referring to FIG. 4, the frame 11 includes a reinforcing plate 116 including a first part 1161 extending along the vertical direction Z and a second part 1162 extending along the horizontal direction, and at least one corner of the carrier 111 is provided with the reinforcing plate 116. The reinforcing plate 116 is generally L-shaped and is used to enhance the structural stability of the corner of the carrier 111.

[0100] In some embodiments, at least one of the main control box, the distribution box, the liquid cooling unit, the general control box and the busbar is not arranged in the box 1. In this embodiment, the application breaks the convention that at least one of the main control box, the distribution box, the liquid cooling unit, the general control box and the busbar is not arranged in the box 1. On the one hand, the space originally occupied by at least one of the main control box, the distribution box, the liquid cooling unit, the general control box and the busbar in the box 1 can be used to place the batteries 2, thereby increasing the number of batteries 2 in the box 1, maximizing the use of the internal space of the box 1, and further improving the energy density of the entire energy storage container. On the other hand, the types of devices inside the box 1 are reduced, which can reduce the operation and maintenance frequency of the energy storage container during normal use.

[0101] The main control box can be used to provide control functions for the batteries 2. The distribution box can be used to provide power supply and circuit protection functions for the electrical devices. The liquid cooling unit can be used to drive the flow of the cooling liquid. The general control box can be used to provide monitoring and management functions for the batteries 2. The busbar 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 general control box and the busbar can all adopt the structures in the prior art.

[0102] The cooling liquid is a liquid used for heat exchange with the batteries 2, for example, the cooling liquid includes but is not limited to water.

[0103] In some embodiments, referring to FIGS. 3 and 5, the accommodation space 111a is filled with the batteries 2, the fire extinguishing system, the liquid cooling pipeline 4 and the cable system 3. That is, the box 1 can only be provided with the batteries 2, the fire extinguishing system, the liquid cooling pipeline 4 and the cable system 3, 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 is improved.

[0104] The fire extinguishing system is used to provide fire extinguishing functions. The liquid cooling pipeline 4 is used to circulate the cooling liquid to exchange heat with the batteries 2. The liquid cooling pipeline 4 can be connected by pipes. For example, the liquid cooling pipeline 4 can be connected to the external pipeline through a liquid cooling pipeline adapter. The cable system 3 is used to be electrically connected with the batteries 2 to realize power and signal transmission. The cable system 3 can be connected by cables. For example, the cable system 3 can be electrically connected with at least one of the main control box, the distribution box, the general control box and the busbar outside the box 1. The cable system 3 can include power distribution lines and communication signal transmission lines. For example, the cable system 3 can be connected to the external circuit through a high-low voltage output adapter.

[0105] In some embodiments, referring to FIG. 5, the liquid cooling pipeline 4 comprises a total liquid inlet pipeline 41, a total liquid return pipeline 42, liquid inlet branch pipelines 43, and liquid return branch pipelines 44. Each battery 2 corresponds to one liquid inlet branch pipeline 43 and one liquid return branch pipeline 44. Each liquid inlet branch pipeline 43 is in communication with the total liquid inlet pipeline 41, and each liquid return branch pipeline 44 is in communication with the total liquid return pipeline 42. For example, when the number of batteries 2 is at least two, the number of liquid inlet branch pipelines 43 and the number of liquid return branch pipelines 44 are both at least two. That is, the batteries 2, the liquid inlet branch pipelines 43, and the liquid return branch pipelines 44 can be one-to-one correspondence.

[0106] The cooling liquid can enter the cabinet 1 through the total liquid inlet pipeline 41, flow through the battery 2 corresponding to the liquid inlet branch pipeline 43 to exchange heat with the battery 2, and then flow to the total liquid return pipeline 42 through the liquid return branch pipeline 44. The cooling liquid of all liquid return branch pipelines 44 can flow out of the cabinet 1 through the total liquid return pipeline 42.

[0107] In this embodiment, the liquid inlet branch pipelines 43 and the liquid return branch pipelines 44 enable each battery 2 to contact the cooling liquid to facilitate sufficient heat exchange. The cooling liquid is concentrated into the cabinet 1 through the total liquid inlet pipeline 41, and then is distributed through the liquid inlet branch pipelines 43, which can simplify the cooling liquid inlet path, save pipelines, save space, and reduce the total weight of the liquid cooling pipeline 4. The cooling liquid is concentrated out of the cabinet 1 through the total liquid return pipeline 42, which can simplify the cooling liquid outlet path and save pipelines.

[0108] It can be understood that the battery 2, the fire extinguishing system, and the cable system 3 can adopt the structures in the prior art.

[0109] In some embodiments, referring to FIGS. 1 to 3, a maintenance opening and a cable outlet 121 are formed on the circumferential direction of the cabinet 1, and the maintenance opening and the cable outlet 121 are in communication with the accommodation space 111a. The maintenance opening is a window for workers to enter and exit the accommodation space 111a to maintain the internal devices of the cabinet 1. The cable outlet 121 is a window for the cables inside the cabinet 1 to connect to external circuits. The maintenance opening and the cable outlet 121 are formed on the circumferential direction of the cabinet 1, and at least two cabinets 1 stacked in the up-down direction Z will not block the maintenance opening and the cable outlet 121. The maintenance opening and the cable outlet 121 are located on the circumferential direction of the cabinet 1, and will not interfere with each other. Not only is it convenient for workers to enter and exit the maintenance opening, but also it is convenient for external circuits to be connected.

[0110] It is to be noted that the circumferential direction is a direction around a straight line extending along the up-down direction Z. Two shielding plates 12 different in the circumferential direction refer to two shielding plates 12 different in orientation in the circumferential direction. For example, taking the first direction as the front-rear direction and the second direction as the left-right direction, the two shielding plates 12 different in orientation can be a front shielding plate 12 and a rear shielding plate 12 of the cabinet 1; for another example, the two shielding plates 12 different in orientation can be a left shielding plate 12 and a right shielding plate 12 of the cabinet 1; for yet another example, the two shielding plates 12 different in orientation can be one of a front shielding plate 12 or a rear shielding plate 12 and the other of a left shielding plate 12 or a right shielding plate 12.

[0111] In some embodiments, referring to FIG. 1, the cabinet 1 comprises a door body 13 for selectively opening or closing the maintenance opening. For example, one end of the door body 13 is rotationally connected to the cabinet 1, and the other end of the door body 13 is openable and closable.

[0112] In some embodiments, referring to FIGS. 1 and 2, one shielding plate 12 of the cabinet 1 along the width direction Y is formed with the maintenance opening, and one shielding plate 12 of the cabinet 1 along the length direction X is formed with the outlet 121. In this way, the maintenance opening and the outlet 121 are formed on two shielding plates 12 adjacent in the circumferential direction. In this way, the two shielding plates 12 of the cabinet 1 away from the outlet 121 can abut, reducing the gap between the cabinets 1, facilitating the assembly of the cabinets 1 along the length direction X or the width direction Y at the site, and improving the site utilization rate of the site, such as a power station.

[0113] In some embodiments, the energy storage container comprises a thermal insulation layer arranged between the shielding plate 12 and the bearing frame 111. The thermal insulation layer is used to provide thermal insulation, reduce heat exchange between the inside of the cabinet 1 and the external environment, so as to minimize the influence of the external environment on the temperature of the battery 2 during charging and discharging, and improve the heat exchange efficiency of the liquid cooling unit.

[0114] In some embodiments, the thermal insulation layer is a ceramic fiber plate. Compared with conventional rock wool, the ceramic fiber plate has relatively small thickness under the condition that the flame retardation and thermal insulation ability are substantially unchanged, thereby further reducing the overall weight of the energy storage container.

[0115] In some embodiments, the shielding plate 12 comprises a corrugated board, such as a short-wave corrugated board.

[0116] In some embodiments, referring to FIG. 3, the frame 11 comprises a support beam 117 arranged on the top of the bearing frame 111, and the two ends of the support beam 117 along the width direction Y are connected with the bearing frame 111. For example, the support beam 117 can extend along the width direction Y. The support beam 117 strengthens the structural strength of the top of the bearing frame 111.

[0117] In some embodiments, referring to FIG. 9, the stacked unit includes at least one cabinet 1 or at least two cabinets 1 stacked in the up-down direction Z, and at least two stacked units can be assembled in a horizontal plane. Two stacked units form a module, and the outlet ports 121 of the two stacked units of the module can be away from each other, and the end faces of the two stacked units of the module can abut each other. For example, the outlet ports 121 of the two stacked units of the module are respectively towards the left side and the right side, and the end faces of the two stacked units of the module can abut each other. For another example, the outlet ports 121 of the two stacked units of the module are respectively towards the front side and the rear side, and the end faces of the two stacked units of the module can abut each other.

[0118] It can be understood that, in the case of assembling at least two stacked units in a horizontal plane, two cabinets 1 adjacent in the front-rear direction or the left-right direction are spaced apart to form a maintenance channel, which can be used for the passage of workers to facilitate the movement of workers to the cabinet 1 to be maintained.

[0119] In some embodiments, the two stacked units of the module are arranged in the front-rear direction, and at least two modules can be arranged in the left-right direction. In the left-right direction, the interval space between the two adjacent modules is a maintenance channel.

[0120] In other embodiments, the two stacked units of the module are arranged in the left-right direction, and at least two modules can be arranged in the front-rear direction. In the front-rear direction, the interval space between the two adjacent modules is a maintenance channel.

[0121] As an example, referring to FIGS. 1-6, the accommodation space 111a is provided with a battery 2, a fire extinguishing system, a liquid cooling pipeline 4 and a cable system 3, the size of the cabinet 1 in the length direction X and the width direction Y is the same as the size of a standard cabinet with a preset size, and the size of the cabinet 1 in the up-down direction Z is half of the size of a standard cabinet with a preset size. For example, a flat car with a horizontal bearing area of 20 feet is usually used for transportation of energy storage containers, and the projection area of the cabinet 1 in the horizontal plane is the same as that of a standard cabinet, which is 20 feet. At least two cabinets 1 can be individually transported to a use site such as a power station site by a 20-foot flat car. The flat car has more uniform axle load distribution during transportation, and the transportation is safer. At least two cabinets 1 are stacked in the up-down direction Z to form a stacked unit at the use site, for example, two, three or more cabinets 1 can be stacked in the up-down direction Z to form a stacked unit.

[0122] The two stacked units constitute a module, the outlet ports 121 of the two stacked units of the module can be away from each other, and the end faces of the two stacked units of the module can abut against each other. For example, the outlet ports 121 of the two stacked units of the module are respectively towards the left side and the right side, and the end faces of the two stacked units of the module can abut against each other. For another example, the outlet ports 121 of the two stacked units of the module are respectively towards the front side and the rear side, and the end faces of the two stacked units of the module can abut against each other. In this way, the two stacked units of the module have a footprint of about 40 feet, and the area utilization rate of the overall power station can be higher.

[0123] Taking sea transportation as an example, the sea transportation charges according to the standard box for the warehouse fee, and if the non-standard box is used, the warehouse fee is also charged according to the standard box. In the embodiment, the size of the box body 1 in the up-down direction Z is half of the size of the standard box of 20 feet, and two box bodies 1 can be stacked in the up-down direction Z for sea transportation. The total height dimension of the two box bodies 1 stacked in the up-down direction Z is the same as the height dimension of the standard box of 20 feet, so that the two box bodies 1 can still be charged as one standard box of 20 feet during sea transportation.

[0124] It can be understood that according to the above embodiment, the size of the box body 1 in the up-down direction Z can be one-third or one-fourth of the size of the standard box of the preset size, and so on. During sea transportation, three or four box bodies 1 can also be stacked in the up-down direction Z, so that the total height dimension of the multiple box bodies 1 stacked in the up-down direction Z is the same as the height dimension of the standard box, and the multiple box bodies 1 can also be charged as one standard box during sea transportation, thereby saving transportation cost.

[0125] The box 1 comprises a frame 11 and at least two shielding plates 12. The frame 11 comprises a 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 support 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 support beam 117 can all improve the structural strength of the bearing frame 111, so that the whole frame 11 forms a cage structure, has good overall rigidity and can meet the strength requirements of the box 1 under various complex stress environments such as earthquakes, random vibrations, sea transportation and stacking. Each shielding plate 12 covers the outer surface of the bearing frame 111. The diagonal bracing beam 112 is arranged at the bottom of the bearing frame 111 and extends in the first direction in a plane perpendicular to the up-down direction Z. The frame 11 comprises a longitudinal reinforcing beam 113 extending in the length direction X. Two longitudinal reinforcing beams 113 are arranged at the bottom of the bearing frame 111 and are arranged in the up-down direction Z. At least one end 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 1 is improved by the diagonal bracing beam 112 and the longitudinal reinforcing beam 113. At least two boxes 1 stacked in the up-down direction Z can be placed more stably on a bearing surface such as the ground.

[0126] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features. 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, each technical feature mentioned in the embodiments can be combined in any way.

Claims

1. An energy storage container, wherein: include: A box body, comprising a frame and a shielding plate, the frame comprising a carrier frame and a diagonal bracing beam, the carrier frame forming a receiving space, the shielding plate covering an outer surface of the carrier frame, the diagonal bracing beam being disposed at a bottom of the carrier frame, and the diagonal bracing beam extending along a first direction in a plane perpendicular to a vertical direction, wherein a length direction of the box body, a width direction of the box body, and the vertical direction are mutually perpendicular, and both the length direction and the width direction are obliquely intersecting the first direction; At least two batteries are arranged in the accommodating space.

2. The energy storage container according to claim 1, wherein: At least two of the diagonal support 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, wherein: 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 carrier frame, the two longitudinal reinforcement beams are arranged at intervals in the up and down directions, and at least one end of a portion of the diagonal support beam is clamped between the two longitudinal reinforcement beams.

4. The energy storage container according to claim 3, wherein: 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 bearing frame.

5. The energy storage container according to claim 1, wherein: 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.

6. The energy storage container according to claim 5, wherein: The partition frame includes a square frame and a reinforcement column. The square frame is connected to the supporting frame. The reinforcement column is arranged in the space enclosed by the square frame and is connected to the side of the square frame along the upper and lower directions.

7. The energy storage container according to claim 5, wherein: 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 respective plate bodies is located above the partition frame.

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

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

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

12. The energy storage container according to claim 1, wherein: 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, wherein: 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 one liquid inlet branch and one liquid return branch. Each liquid inlet branch is connected to the total liquid inlet pipeline, and each liquid return branch is connected to the total liquid return pipeline.

14. The energy storage container according to any one of claims 1 to 13, wherein: 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, wherein: The energy storage container includes a heat-insulating layer, which is arranged between the shielding plate and the supporting frame.

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