Energy storage container

Abstract

Provided is an energy storage container. The energy storage container comprises a container body (1); in three directions, i.e., a first direction, a second direction, and an up-down direction, the sizes of the container body (1) in two directions among the three directions are the same as the size of a standard container having a preset size, and the size of the container body (1) in the remaining direction is smaller than the size of the standard container having the preset size, wherein the preset size is 10 chi, 20 chi, 30 chi, 40 chi or 45 chi, and the first direction, the second direction, and the up-down direction are perpendicular to each other. Under the condition that the size of the container body (1) is not greatly changed, the weight of the container body (1) can be reduced, and the energy storage container can be matched with conventional transportation apparatuses, thereby satisfying the transportation requirements of land transportation and / or ocean shipping, etc.

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 all or part of power for new energy vehicles. In addition, batteries are also increasingly used in the field of energy storage and the like.

[0003] The energy storage container is provided with batteries, and is an electric 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. How to reduce the transportation difficulty and meet the transportation requirements is a problem to be solved.

[0004] SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide an energy storage container which can reduce the transportation difficulty.

[0006] 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, which comprises a box body, in three directions of a first direction, a second direction and an up-down direction, the size of the box body 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 in the other direction is smaller than the size of the standard box with the preset size, the preset size being 10 feet, 20 feet, 30 feet, 40 feet or 45 feet; wherein the first direction, the second direction and the up-down direction are perpendicular to each other.

[0008] In the embodiments of the present application, the size of the box body in two directions is the same as the size of the standard box with the preset size, and the size of the box body in the other direction is smaller than the size of the standard box with the preset size, that is, the size of the box body in only one direction is smaller than the preset size of the standard box. The preset size of the standard box meets the requirements of the field standard and can be used universally across regions. In this way, under the condition of not greatly changing the size of the box body, the box body can reduce the weight and match the conventional transportation and transfer equipment, thereby meeting the transportation requirements of land and / or sea transportation and the like.

[0009] In some embodiments, the energy storage container comprises batteries arranged in the box body, and the weight of a single battery is 5kg to 60kg.

[0010] In this embodiment, the weight of a single battery is appropriate, so that a proper amount of batteries can be placed in the box to meet the transportation requirements, and the energy density is moderate.

[0011] In some embodiments, the number of batteries is 416 to 2080.

[0012] In this embodiment, the weight of a single battery and the number of batteries are reasonably matched, so that the total weight of all batteries meets the transportation requirements, and the energy density per unit area of the box is improved.

[0013] In some embodiments, the energy storage container includes batteries arranged in the box, and the total weight of all the batteries is 10 to 25 tons.

[0014] In this embodiment, the total weight of all batteries meets the transportation requirements, and the energy density of the energy storage container is larger.

[0015] In some embodiments, the box does not arrange at least one of the main control box, the distribution box, the liquid cooling unit, the total control box and the busbar.

[0016] In this embodiment, the application breaks the convention, and at least one of the main control box, the distribution box, the liquid cooling unit, the total control box and the busbar is not in the box. This design, 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 total 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 type of devices inside the box is reduced, which can reduce the operation and maintenance frequency of the energy storage container during normal use.

[0017] In some embodiments, the box is filled with batteries, a fire extinguishing system, a liquid cooling pipeline and a cable system.

[0018] In this embodiment, the internal space of the box can be maximized to a certain extent, and the energy density of the energy storage container is improved.

[0019] In some embodiments, 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 communicates with the total liquid inlet pipeline, and each liquid return branch communicates with the total liquid return pipeline.

[0020] In the 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 centrally introduced into the box through the total liquid inlet pipeline and then is branched through the liquid inlet branch, which can simplify the cooling liquid inlet path, save the pipeline, save space, and reduce the total weight of the liquid cooling pipeline. The cooling liquid is centrally discharged from the box through the total liquid return pipeline, which can simplify the cooling liquid discharge path and save the pipeline.

[0021] In some embodiments, at least two of the batteries are arranged along a plane perpendicular to the up-down direction to form a battery group, and at least two of the battery groups are stacked along the up-down direction, and the total liquid inlet pipeline and the total liquid return pipeline are arranged above the uppermost battery group.

[0022] In the embodiment, the top space of the box is relatively open, facilitating the pipeline arrangement, and the total liquid inlet pipeline and the total liquid return pipeline can avoid interfering with the stacking of the at least two battery groups.

[0023] In some embodiments, the box comprises a frame and a shielding plate, the frame comprises a bearing frame and a diagonal bracing beam, the shielding plate covers the outer surface of the bearing frame, the diagonal bracing beam is arranged at the bottom of the bearing frame, and the diagonal bracing beam extends along a third direction in a plane perpendicular to the up-down direction, wherein the first direction and the second direction are oblique to the third direction.

[0024] In the embodiment, the box adopts the frame and the shielding plate, and the shielding plate covers the outer surface of the bearing frame to avoid external objects contacting the batteries in the accommodation space. The bearing frame is a hollow frame body, which has a relatively light self-weight and can reduce the space occupation. The diagonal bracing beam extends along the first direction in the plane perpendicular to the up-down direction, and 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. Taking the case that the size of the box in the first direction is less than the size of a standard box with a preset size as an example, the projection area of the box on the horizontal plane is less than the projection area of the standard box on the horizontal plane. Under the same weight condition, the pressure of the box is greater than that of the standard box. The diagonal bracing beam can effectively improve the structural strength of the bottom of the bearing frame, so that the bottom surface of the frame can bear a larger load, and the box can be stably placed on the bearing surface such as the ground.

[0025] In some embodiments, the frame comprises longitudinal reinforcing beams extending along the first direction, two longitudinal reinforcing beams are arranged at the bottom of the bearing frame, the two longitudinal reinforcing beams are arranged in the up-down direction, and one end of at least part of the diagonal bracing beam is clamped between the two longitudinal reinforcing beams.

[0026] 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.

[0027] In some embodiments, the box body is formed with a maintenance port and a wire outlet, and the maintenance port and the wire outlet are respectively formed on two different side surfaces of the box body along the circumferential direction.

[0028] 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 stacked in the vertical direction will not block the maintenance port and the wire outlet; the maintenance port and the wire outlet are located on two different sides and will not interfere with each other, which not only facilitates personnel to enter and exit the maintenance port, but also facilitates external circuit connection.

[0029] In some embodiments, the maintenance port is formed on a side surface of the box along one of a first direction and a second direction, and the cable outlet is formed on a side surface of the box along the other of the first direction and the second direction.

[0030] In this embodiment, the end faces of the two boxes away from the outlet can abut against each other, reducing the gap between the boxes, making it easier to assemble the boxes along the first direction or the second direction at the use site, thereby improving the site utilization rate of the use site, such as a power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic structural diagram of a first energy storage container in one embodiment of the present application;

[0032] FIG2 is a schematic diagram of a partial structure of the box in FIG1 ;

[0033] FIG3 is a schematic diagram of the frame of the first energy storage container shown in FIG1 ;

[0034] FIG4 is an enlarged schematic diagram of point A in FIG3 ;

[0035] FIG5 is a schematic diagram of a partial structure of the first energy storage container shown in FIG1 ;

[0036] FIG6 is a schematic diagram of the first type of energy storage containers shown in FIG1 stacked in the vertical direction;

[0037] FIG7 is a schematic diagram of the assembly of the first energy storage container in a plane perpendicular to the up-down direction;

[0038] FIG8 is a schematic structural diagram of a second energy storage container in one embodiment of the present application;

[0039] FIG9 is a structural diagram of the second energy storage container in FIG8 from another perspective;

[0040] FIG10 is a schematic diagram of the assembly of the second energy storage container in a plane perpendicular to the up and down directions. DETAILED DESCRIPTION

[0041] The embodiments of the technical solutions of the present application will be described in detail below with reference to the 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.

[0042] 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 this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0043] 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.

[0044] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various locations in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a common or alternative embodiment. It is explicitly and implicitly understood that the embodiments described herein can be combined with other embodiments.

[0045] It should be noted that in the embodiments of the present application, the first direction is represented by X, the second direction is represented by Y, and the up-down direction is represented by Z, wherein Z1 represents the upper side, and the lower side is the opposite direction of the upper side, and Z2 represents the lower side.

[0046] 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 are weight limits for land and sea transportation, for example, the load weight of a general road transport vehicle is not more than 40 tons, the maximum weight limit of a first-class road and a bridge is not more than 50 tons, and the standard axle load of the transport vehicle is 10 to 13 tons. Therefore, the weight of the energy storage container is more limited. The lifting equipment such as a front crane and a rail crane in the stacking field of the energy storage container loading wharf is limited to 35 to 45 tons. Generally, the energy storage container belongs to the 9th hazardous chemical product, and the wharf 9th hazardous chemical product stacking field is designed to be not more than 40 tons (the 9th hazardous chemical product needs to be isolated from ordinary products, 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 requires the improvement of the conventional transportation and transfer equipment involved in the transportation process of the above-mentioned transportation vehicle, transportation road, wharf stacking field, lifting equipment, etc. It is not easy to improve the transportation capacity of the conventional transportation and transfer equipment in the entire transportation process, and the cost of investment will be very large.

[0047] Please refer to FIG. 1 and FIG. 8, the energy storage container provided by the embodiment of the present application includes a box body 1. In the three directions of a first direction X, a second direction Y and an 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 the standard box with the preset size. The preset size is 10 feet, 20 feet, 30 feet, 40 feet or 45 feet. The first direction X, the second direction Y and the up-down direction Z are perpendicular to each other.

[0048] The standard box refers to a general box body with a preset size. The general box body meets the standard requirements of at least two different regions or countries for transportation, which includes but is not limited to land and / or sea transportation.

[0049] In the embodiment of the present application, the size of the box body 1 in two 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 the standard box with the preset size. That is to say, the size of the box body 1 in only one direction is smaller than the preset size of the standard box. The preset size of the standard box meets the field standard requirements and can be used universally across regions. In this way, under the condition of not greatly changing the size of the box body 1, the box body 1 can reduce the weight and match the conventional transportation and transfer equipment to meet the transportation requirements of land and / or sea transportation, etc.

[0050] It should be understood that the size of each direction of the box body 1 is the size of the outer contour shape of the box body 1.

[0051] The preset size can be 10 feet, 20 feet, 30 feet, 40 feet or 45 feet, which can be defined according to the field standard requirements, for example, the preset size can be the standard requirement defined by the laws and regulations, departmental rules and regulations related to land transportation and / or sea transportation in various countries. For example, the following describes each preset size:

[0052] The 10 feet can include: the first direction X size is 2991mm, the tolerance is 0mm-5mm; the second direction Y size is 2438mm, the tolerance is 0mm-5mm; and the up-down direction Z size is not more than 2438mm; the tolerance is 0mm-5mm.

[0053] The 20 feet can include: the first direction X size is 6058mm, the tolerance is 0mm-6mm; the second direction Y size is 2438mm, the tolerance is 0mm-5mm; and the up-down direction Z size is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0054] The 30 feet can include: the first direction X size is 9125mm, the tolerance is 0mm-10mm; the second direction Y size is 2438mm, the tolerance is 0mm-5mm; and the up-down direction Z size is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0055] The 40 feet can include: the first direction X size is 12192mm, the tolerance is 0mm-10mm; the second direction Y size is 2438mm, the tolerance is 0mm-5mm; and the up-down direction Z size is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0056] The 45 feet can include: the first direction X size is 13716mm, the tolerance is 0mm-10mm; the second direction Y size is 2438mm, the tolerance is 0mm-5mm; and the up-down direction Z size is 2591mm or 2896mm; the tolerance is 0mm-5mm.

[0057] In some embodiments, referring to FIG. 1 and FIG. 5, the energy storage container includes batteries 2 arranged in the box 1, and 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 of meeting the transportation demand.

[0058] It should be noted that the unit “kg” is kilogram.

[0059] 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 container 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 container 1 is improved.

[0060] In some embodiments, the total weight of all batteries 2 is 10 to 25 tons. For example, 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 container 1. In this way, the total weight of all batteries 2 meets the transportation requirements, and the energy density of the energy storage container is larger.

[0061] In the embodiments of the present application, the battery 2 can be a secondary battery, which refers to a battery that can be activated by charging after discharging to continue to use.

[0062] 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.

[0063] The battery 2 can be a cylindrical battery, a prismatic battery or other shaped battery. The prismatic battery includes a square battery or a multi-prismatic battery, for example, a hexagonal prismatic battery, etc., which is not particularly limited in the present application.

[0064] The battery 2 includes a shell, an electrode assembly and an electrolyte, and the shell is used to package the electrode assembly and the electrolyte, etc. For example, the electrode assembly includes a positive electrode, a negative electrode and a separator. In the charging and discharging process of the battery 2, the active ions (such as lithium ions) in the electrolyte are embedded and de-embedded between the positive electrode and the negative electrode, realizing charging and discharging.

[0065] In some embodiments, at least one of the master control box, the distribution box, the liquid cooling unit, the total control box and the bus bar is not arranged in the container 1. In this embodiment, the present application breaks the convention, at least one of the master control box, the distribution box, the liquid cooling unit, the total control box and the bus bar is not in the container 1. In this way, on the one hand, the space originally occupied by at least one of the master control box, the distribution box, the liquid cooling unit, the total control box and the bus bar in the container 1 can be used to place the battery 2, thereby increasing the number of batteries 2 in the container 1, maximizing the use of the internal space of the container 1, and further improving the energy density of the entire energy storage container. On the other hand, the type of devices inside the container 1 is reduced, which can reduce the operation and maintenance frequency of the energy storage container in normal use.

[0066] The master control box can be used to provide control functions for the battery 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 battery 2. The busbar can be used to connect the multiple cable branches of the energy storage container. It can be understood that the master control box, the distribution box, the liquid cooling unit, the general control box and the busbar can adopt the structures in the prior art.

[0067] The cooling liquid is a liquid used for heat exchange with the battery 2, for example, the cooling liquid includes but is not limited to water.

[0068] In some embodiments, referring to FIGS. 1 and 5, the battery 2, the fire extinguishing system, the liquid cooling pipeline 4 and the cable system 3 fill the box 1. That is, the battery 2, the fire extinguishing 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.

[0069] 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 battery 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 the liquid cooling pipeline 4 adapter. The cable system 3 is used to electrically connect with the battery 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 master 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 the high-low voltage output adapter.

[0070] In some embodiments, referring to FIGS. 1 to 5, the box 1 forms an accommodation space 1b. The accommodation space 1b is used to place devices such as the battery 2, the fire extinguishing system, the liquid cooling pipeline 4 and / or the cable system 3, etc.

[0071] In some embodiments, referring to FIG. 5, the liquid cooling pipeline 4 is shown by a dotted line in FIG. 5. The 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 one liquid inlet branch 43 and one liquid return branch 44. Each liquid inlet branch 43 is in communication with the total liquid inlet pipeline 41, and each liquid return branch 44 is in communication with the total liquid return pipeline 42. For example, the number of batteries 2 is at least two, and the number of liquid inlet branches 43 and the number of liquid return branches 44 are both at least two. That is, the battery 2, the liquid inlet branch 43 and the liquid return branch 44 can correspond one by one.

[0072] The cooling liquid can enter the box 1 through the total inlet pipe 41, and then flow through the battery 2 at which the inlet branch 43 is located to exchange heat with the battery 2. The cooled cooling liquid can flow to the total return pipe 42 through the return branch 44, and then flow out of the box 1 through the total return pipe 42.

[0073] In this embodiment, the inlet branch 43 and the return branch 44 enable each battery 2 to contact the cooling liquid to facilitate sufficient heat exchange. The cooling liquid can enter the box 1 through the total inlet pipe 41, and then be distributed through the inlet branch 43, which can simplify the cooling liquid inlet path, save pipes, save space, and reduce the total weight of the liquid cooling pipe 4. The cooling liquid can be discharged from the box 1 through the total return pipe 42, which can simplify the cooling liquid discharge path and save pipes.

[0074] It can be understood that the battery 2, the fire extinguishing system, and the cable system 33 can adopt the structures in the prior art.

[0075] In some embodiments, referring to FIG. 5, at least two batteries 2 are arranged along a plane perpendicular to the up-down direction Z to form a battery group, and at least two battery groups are stacked along the up-down direction Z. The total inlet pipe 41 and the total return pipe 42 are arranged above the uppermost battery group Z1. For example, one end of the inlet branch 43 is in communication with the total inlet pipe 41, and the other end of the inlet branch 43 extends to the battery 2 below. The top space of the box 1 is relatively open, which facilitates pipe arrangement and can avoid interference between the total inlet pipe 41 and the total return pipe 42 and the stacking of the at least two battery groups.

[0076] In some embodiments, referring to FIG. 5, at least two batteries 2 are arranged side by side along the second direction Y to form a battery unit, and at least two battery units are arranged along the first direction X to form a battery group. The side-by-side arrangement of the at least two batteries 2 along the second direction Y means that the at least two batteries 2 are arranged in parallel along the thickness direction thereof. For example, the large faces of the at least two square battery 2 are arranged in parallel. For example, the battery 2 is placed along the up-down direction Z, the large face of the battery 2 is parallel to the up-down direction Z, and the at least two batteries 2 of the battery unit are arranged in parallel.

[0077] In some embodiments, referring to FIGS. 1-7, the box 1 has the same size as a standard box in the first direction X and the second direction Y, and has a smaller size than the standard box in the up-down direction Z. For example, the box 1 can have a size that is one-third or one-half of the size of the standard box in the up-down direction Z. That is, the height of the box 1 is one-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 up-down direction Z or assembled in a plane perpendicular to the up-down direction Z according to the needs of the site, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the box 1 has the same size as the standard box in the first direction X and the second direction Y, and the footprint of a single box 1 does not change, and the base of at least two boxes 1 stacked in the up-down direction Z is relatively stable. Stacking at least two boxes 1 in the up-down direction Z can reduce the total footprint, which is beneficial for space utilization of the site, such as a power station site.

[0078] In some embodiments, referring to FIGS. 1-7, the box 1 has the same size as a standard box in the first direction X and the second direction Y, and has a smaller size than the standard box in the up-down direction Z. For example, the box 1 can have a size that is one-third or one-half of the size of the standard box in the up-down direction Z. That is, the height of the box 1 is one-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 up-down direction Z or assembled in a plane perpendicular to the up-down direction Z according to the needs of the site, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the box 1 has the same size as the standard box in the first direction X and the second direction Y, and the footprint of a single box 1 does not change, and the base of at least two boxes 1 stacked in the up-down direction Z is relatively stable. Stacking at least two boxes 1 in the up-down direction Z can reduce the total footprint, which is beneficial for space utilization of the site, such as a power station site.

[0079] In some embodiments, referring to FIGS. 1-7, the box 1 has the same size as a standard box in the first direction X and the second direction Y, and has a smaller size than the standard box in the up-down direction Z. For example, the box 1 can have a size that is one-third or one-half of the size of the standard box in the up-down direction Z. That is, the height of the box 1 is one-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 up-down direction Z or assembled in a plane perpendicular to the up-down direction Z according to the needs of the site, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the box 1 has the same size as the standard box in the first direction X and the second direction Y, and the footprint of a single box 1 does not change, and the base of at least two boxes 1 stacked in the up-down direction Z is relatively stable. Stacking at least two boxes 1 in the up-down direction Z can reduce the total footprint, which is beneficial for space utilization of the site, such as a power station site.

[0080] In some embodiments, referring to FIGS. 1-4, the box 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 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 the diagonal bracing beam 112 extends in a third direction in a plane perpendicular to the up-down direction Z, wherein the first direction X and the second direction Y are both oblique to the third direction.

[0081] In this embodiment, the box 1 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 contacting the batteries 2 in the accommodation space 1b, and the bearing frame 111 is a hollow frame body, which is light in weight and can reduce space occupation. The diagonal bracing beam 112 extends in the first direction X in the plane perpendicular to the up-down direction Z, the accommodation space 1b is larger to arrange as many batteries 2 as possible, the diagonal bracing beam 112 can bear 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 box 1, thereby reducing the probability of stress deformation of the bottom of the box 1. Taking the case that the size of the box 1 in the first direction X is smaller than the size of a standard box with a preset size as an example, the projection area of the box 1 on the horizontal plane is smaller than the projection area of the standard box on the horizontal plane. Under the same weight condition, the pressure of the box 1 is larger than that of the standard box. The diagonal bracing beam 112 can effectively improve the structural strength of the bottom of the bearing frame 111, so that the bottom surface of the frame 11 can bear a larger load, and the box 1 can be stably placed on a bearing surface such as the ground.

[0082] In some embodiments, the shielding plate 12 comprises a corrugated board, for example, a short-wave corrugated board.

[0083] In some embodiments, referring to FIGS. 2 and 5, the bearing frame 111 is formed with an accommodation space 1b. The accommodation space 1b is used to accommodate the batteries 2 and other devices, such as a fire extinguishing system, a liquid cooling pipeline 4, and a cable system 3, etc.

[0084] The material of the bearing frame 111 is not limited, and for example, the material of the bearing frame 111 includes but is not limited to a metal material, such as a steel material.

[0085] The material of the diagonal bracing beam 112 is not limited, and for example, the material of the diagonal bracing beam 112 includes but is not limited to a metal material, such as a steel material.

[0086] The shape of the diagonal bracing beam 112 is not limited, and for example, the diagonal bracing beam 112 can be a square tube with a quadrilateral cross-sectional shape.

[0087] The connection mode of the diagonal bracing beam 112 and the bearing frame 111 is not limited, and for example, the diagonal bracing beam 112 and the bearing frame 111 can be non-detachable or detachable. The non-detachable connection includes but is not limited to welding, etc.

[0088] The outer shape of the box 1 is hexahedral. In some embodiments, the carrier 111 can include four longitudinal rods extending along the first direction X, four vertical rods extending along the up-down direction Z, and four horizontal rods extending along the second direction Y, which collectively form the edges of the hexahedron. In this way, the carrier 111 forms a hollow hexahedron, and the six faces of the hexahedron are covered by the shielding plates 12. The longitudinal rods, vertical rods, and horizontal rods can all be square tubes with a quadrilateral cross-section.

[0089] In some embodiments, referring to FIGS. 3-4, the frame 11 includes longitudinal reinforcing beams 113 extending along the first direction X, both of which are arranged at the bottom of the carrier 111 and are spaced apart along the up-down direction Z, and at least one end of the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113. For example, both ends of the longitudinal reinforcing beams 113 along the first direction X are connected to the carrier 111. For example, one end of part of the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113, and the other end of the remaining diagonal bracing beams 112 is not clamped between the two longitudinal reinforcing beams 113. For example, one end of all the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113.

[0090] 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; on the other hand, one end of the diagonal bracing beams 112 is fixed by the two longitudinal reinforcing beams 113, which can improve the connection stability of the diagonal bracing beams 112.

[0091] The material of the longitudinal reinforcing beams 113 is not limited, and for example, the material of the longitudinal reinforcing beams 113 includes but is not limited to metal materials, such as steel.

[0092] The connection mode of the longitudinal reinforcing beams 113 and the carrier 111 is not limited, and for example, the longitudinal reinforcing beams 113 and the carrier 111 can be non-detachable or detachable. The non-detachable connection includes but is not limited to welding, etc.

[0093] In some embodiments, referring to FIGS. 1, 2, and 7, the box 1 is formed with a maintenance opening and a wire outlet 1a, which are respectively formed on two circumferentially different sides of the box 1. The maintenance opening is a window for workers to enter and exit the box 1 to maintain the internal devices of the box 1. The wire outlet 1a is a window for the cables inside the box 1 to connect to external circuits. The maintenance opening and the wire outlet 1a are respectively formed on the circumference of the box 1, and at least two boxes 1 stacked along the up-down direction Z will not block the maintenance opening and the wire outlet 1a; the maintenance opening and the wire outlet 1a are located on two different sides and do not interfere with each other, which not only facilitates the entry and exit of the maintenance opening, but also facilitates the external circuit connection.

[0094] It should be noted that the circumferential direction is a direction around a straight line extending along the up-down direction Z. Two sides different in the circumferential direction refer to two sides different in the circumferential direction. For example, taking the first direction X as the front-rear direction and the second direction Y as the left-right direction, the two sides different in the circumferential direction can be the front side and the rear side of the cabinet 1; for another example, the two sides different in the circumferential direction can be the left side and the right side of the cabinet 1; for another example, the two sides different in the circumferential direction can be one of the front side or the rear side and the other of the left side or the right side.

[0095] In some embodiments, the cabinet 1 is provided with an accommodating space 1b, and the maintenance opening and the outlet 1a are both in communication with the accommodating space 1b.

[0096] In some embodiments, referring to FIGS. 1, 2 and 6, the energy storage container 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.

[0097] In some embodiments, referring to FIGS. 1, 2 and 6, the maintenance opening is formed on the side of the cabinet 1 along one of the first direction X and the second direction Y, and the outlet 1a is formed on the side of the cabinet 1 along the other of the first direction X and the second direction Y. The maintenance opening and the outlet 1a are respectively formed on two circumferentially adjacent sides of the cabinet 1. In this way, the end faces of the two cabinets 1 away from the outlet 1a can be abutted, reducing the gap between the cabinets 1, facilitating the assembly of the cabinets 1 in the use place along the first direction X or the second direction Y, and improving the site utilization rate of the use place such as a power station.

[0098] In some embodiments, referring to FIGS. 6, 7 and 10, the stacking unit 10 comprises at least one cabinet 1 or at least two cabinets 1 stacked along the up-down direction Z, and at least two stacking units 10 can be assembled in a horizontal plane. The two stacking units 10 constitute a module 100, the outlets 1a of the two stacking units 10 of the module 100 can be away from each other, and the end faces of the two stacking units 10 of the module 100 can be abutted. For example, the outlets 1a of the two stacking units 10 of the module 100 are respectively directed to the left side and the right side, and the end faces of the two stacking units 10 of the module 100 can be abutted. For another example, the outlets 1a of the two stacking units 10 of the module 100 are respectively directed to the front side and the rear side, and the end faces of the two stacking units 10 of the module 100 can be abutted.

[0099] It can be understood that, in the case of assembling the at least two stacking units 10 in a horizontal plane, the two cabinets 1 adjacent in the front-rear direction or the left-right direction are arranged with a spacing to form a maintenance channel 100a, which can be used for the work personnel to pass through so as to move to the cabinet 1 to be maintained.

[0100] In some embodiments, two stacked units 10 of the module 100 are arranged along the first direction X, and at least two modules 100 can be arranged along the second direction Y. In the second direction Y, the spacing between two adjacent modules 100 is the operation and maintenance channel 100a.

[0101] In other embodiments, two stacked units 10 of the module 100 are arranged along the second direction Y, and at least two modules 100 can be arranged along the first direction X. In the first direction X, the spacing between two adjacent modules 100 is the operation and maintenance channel 100a.

[0102] As an example, referring to FIGS. 1-7, the battery 2, fire extinguishing system, liquid cooling pipeline 4, and cable system 3 are arranged in the containing space 1b of the box 1, the size of the box 1 in the first direction X and the second direction Y is the same as that of a standard box with a preset size, and the size of the box 1 in the up-down direction Z is half of that of a standard box with a preset size. For example, a flatbed truck with a horizontal bearing area of 20 feet is usually used to transport the energy storage container, and the projection area of the box 1 in the horizontal plane is the same as that of a standard box, which is 20 feet. At least two boxes 1 can be individually transported to the use site, such as a power station site, by a 20-foot flatbed truck. The flatbed truck has more uniform axle load distribution during transportation, which is safer. At least two boxes 1 are stacked in the up-down direction Z to form a stacked unit 10, for example, two, three, or more boxes 1 can be stacked in the up-down direction Z to form a stacked unit 10.

[0103] Referring to FIG. 7, at least two stacked units 10 can be assembled in the horizontal plane. Two stacked units 10 form a module 100, and the wire outlets 1a of the two stacked units 10 of the module 100 can face away from each other, and the end faces of the two stacked units 10 of the module 100 can abut. For example, the wire outlets 1a of the two stacked units 10 of the module 100 face left and right, respectively, and the end faces of the two stacked units 10 of the module 100 can abut. For another example, the wire outlets 1a of the two stacked units 10 of the module 100 face forward and backward, respectively, and the end faces of the two stacked units 10 of the module 100 can abut. In this way, the two stacked units 10 of the module 100 occupy an area of about 40 feet, and the area utilization rate of the overall power station can be higher.

[0104] For example, the sea transportation charges the warehouse space according to the standard container, and charges the warehouse space according to the standard container even if the non-standard container is used. In the embodiment, the size of the box 1 in the up-down direction Z is half of the size of the standard container of 20 feet, and two boxes 1 can be stacked in the up-down direction Z for sea transportation. The total height of the two boxes 1 stacked in the up-down direction Z is the same as the height of the standard container of 20 feet, so that the two boxes 1 can still be charged as one standard container of 20 feet during sea transportation.

[0105] 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-fourth of the size of the standard container of the preset size, and so on. During sea transportation, three or four boxes 1 can be stacked in the up-down direction Z, so that the total height of the stacked multiple boxes 1 in the up-down direction Z is the same as the height of the standard container, and the multiple boxes 1 can still be charged as one standard container during sea transportation, thereby saving transportation costs.

[0106] Referring to FIGS. 1 to 7, the box 1 includes a frame 11 and at least two shielding plates 12. The frame 11 includes a bearing frame 111 and a diagonal strut beam 112. Each shielding plate 12 covers the outer surface of the bearing frame 111. The diagonal strut beam 112 is arranged at the bottom of the bearing frame 111, and extends in the third direction in the plane perpendicular to the up-down direction Z. The frame 11 includes longitudinal reinforcing beams 113 extending in the first direction X. Both longitudinal reinforcing beams 113 are arranged at the bottom of the bearing frame 111, and are spaced apart in the up-down direction Z. One end of at least part of the diagonal strut 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 strut beam 112 and the longitudinal reinforcing beam 113 together, and at least two boxes 1 stacked in the up-down direction Z can be placed more stably on the bearing surface, such as the ground.

[0107] 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 foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and 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, especially, 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: The box comprises a box body, wherein in three directions, namely, a first direction, a second direction, and an up-down direction, the dimensions of the box body in two of the 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 the preset dimensions, and the preset dimensions are 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet; wherein the first direction, the second direction, and the up-down direction are perpendicular to each other.

2. The energy storage container according to claim 1, wherein: The energy storage container includes a battery disposed in the container, and the weight of a single battery is 5 kg to 60 kg.

3. The energy storage container according to claim 2, wherein: The number of the batteries ranges from 416 to 2080.

4. The energy storage container according to claim 1, wherein: The energy storage container includes batteries arranged in the container, and the total weight of all the batteries is 10 tons to 25 tons.

5. 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.

6. The energy storage container according to claim 1, wherein: The box is filled with batteries, a fire protection system, liquid cooling pipes and a cable system.

7. The energy storage container according to claim 6, 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.

8. The energy storage container according to claim 7, wherein: At least two of the batteries are arranged along a plane perpendicular to the up and down directions to form a layer of battery packs. At least two of the battery packs are stacked in the up and down directions. The total liquid inlet pipeline and the total liquid return pipeline are arranged above the uppermost battery pack.

9. The energy storage container according to claim 1, wherein: The box body includes a frame and a shielding plate, the frame includes a supporting frame and a diagonal bracing beam, the shielding plate covers the outer surface of the supporting frame, the diagonal bracing beam is arranged at the bottom of the supporting frame, and the diagonal bracing beam extends along a third direction in a plane perpendicular to the up and down directions, wherein the first direction and the second direction are both oblique to the third direction.

10. The energy storage container according to claim 9, wherein: The frame includes a longitudinal reinforcement beam extending along a first direction, two of the longitudinal reinforcement beams are arranged at the bottom of the carrier frame, the two longitudinal reinforcement beams are spaced apart 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.

11. The energy storage container according to any one of claims 1 to 10, wherein: The box body is formed with a maintenance port and a wire outlet, and the maintenance port and the wire outlet are respectively formed on two different side surfaces of the box body along the circumferential direction.

12. The energy storage container according to claim 11, wherein: The maintenance port is formed on a side surface of the box along one of a first direction and a second direction, and the cable outlet is formed on a side surface of the box along the other of the first direction and the second direction.

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