Energy storage container

Abstract

The utility model relates to the technical field of batteries, and provides an energy storage container which comprises a container body, and in three directions of a first direction, a second direction and an up-down direction, the size of the container body in two of the directions is the same as the size of a standard container with a preset size. The size of the box body in the other direction is smaller than the size of a standard box with a preset size, and the preset size is 10 chi, 20 chi, 30 chi, 40 chi or 45 chi; wherein the first direction, the second direction and the vertical direction are perpendicular to one another. Under the condition that the size of the box body is not greatly changed, the weight of the box body can be reduced, the box body can be matched with conventional transportation and transfer equipment, and the transportation requirements of land transportation and / or sea transportation and the like are met.

Description

Technical Field

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

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

[0003] Energy storage containers are equipped with batteries. They are a type of electrical energy storage and transfer equipment and an important part of the development of distributed energy, smart grids, and energy internet in the energy storage field. Energy storage containers usually need to be transported from the production site to the site of use by land and / or sea. How to reduce the difficulty of transportation and meet transportation requirements is an urgent problem to be solved. Utility Model Content

[0004] In view of this, an embodiment of the present application hopes to provide an energy storage container that can reduce the difficulty of transportation.

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

[0006] An embodiment of the present application provides an energy storage container, including a box body, wherein in three directions, namely, a first direction, a second direction, and an up-down direction, sizes of the box body in two of the directions are the same as sizes of a standard box of preset sizes, and a size of the box body in another direction is smaller than the size of a standard box of the preset size, and the preset size is 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.

[0007] In the embodiment of the present application, the dimensions of the box in two directions are the same as those of a standard box of preset dimensions, and the dimension of the box in another direction is smaller than that of a standard box of preset dimensions. That is to say, the dimension of the box in only one direction is smaller than the preset dimensions of the standard box. The preset dimensions of the standard box meet the requirements of field standards and can be used across regions. In this way, without significantly changing the dimensions of the box, the box can reduce weight and can match conventional transportation and transshipment equipment to meet the transportation needs of land and / or sea transportation.

[0008] In some embodiments, the energy storage container includes a battery disposed in the container, and the weight of a single battery is 5 kg to 60 kg.

[0009] In this embodiment, the weight of a single battery is appropriate so that an appropriate amount of batteries can be placed in the box, and the energy density is moderate while meeting the transportation requirements.

[0010] In some embodiments, the number of the batteries is 416 to 2080.

[0011] 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.

[0012] In some embodiments, the energy storage container includes batteries disposed in the container, and the total weight of all the batteries is 10 tons to 25 tons.

[0013] In this embodiment, the total weight of all batteries meets the transportation requirements, and the energy density of the energy storage container is relatively large.

[0014] In some embodiments, at least one of a main control box, a distribution box, a liquid cooling unit, a master control box and a bus is not provided in the box.

[0015] In this embodiment, the present application breaks the convention, and at least one of the main control box, distribution box, liquid cooling unit, master control box and bus bar is not inside the box. With this design, on the one hand, the space originally occupied by at least one of the main control box, distribution box, liquid cooling unit, master control box and bus bar inside the box can be used to place batteries, thereby increasing the number of batteries inside the box, maximizing the use of the internal space of the box, and thus improving the energy density of the entire energy storage container. On the other hand, the number of device types inside the box is reduced, which can reduce the frequency of operation and maintenance of the energy storage container during normal use.

[0016] In some embodiments, the box is filled with batteries, a fire protection system, liquid cooling pipes and a cable system.

[0017] In this embodiment, the internal space of the box can be maximized to a certain extent, thereby improving the energy density of the energy storage container.

[0018] In some embodiments, the liquid cooling circuit includes a total liquid inlet pipeline, a total liquid return pipeline, a liquid inlet branch and a liquid return branch, each battery corresponds to a liquid inlet branch and a liquid return branch, each of the liquid inlet branches is connected to the total liquid inlet pipeline, and each of the liquid return branches is connected to the total liquid return pipeline.

[0019] In this embodiment, the liquid inlet branch and the liquid return branch allow each battery to contact the coolant for sufficient heat exchange. The coolant is concentrated into the box through the total liquid inlet pipeline, and then diverted through the liquid inlet branch, which can simplify the coolant inlet path, save pipelines, save space, and reduce the total weight of the liquid cooling pipeline. The coolant is concentrated out of the box through the total liquid return pipeline, which can simplify the coolant discharge path and save pipelines.

[0020] In some embodiments, 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 along the up and down directions, and the total liquid inlet pipeline and the total liquid return pipeline are arranged above the uppermost battery pack.

[0021] In this embodiment, the top space of the box body is relatively open, which is convenient for piping and can prevent the total liquid inlet pipeline and the total liquid return pipeline from interfering with the stacking of at least two battery packs.

[0022] In some embodiments, 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.

[0023] In this embodiment, the box body adopts a frame and a shielding plate. The shielding plate covers the outer surface of the support frame to prevent foreign objects from contacting the batteries in the storage space. The support frame is a hollow frame with a light weight, which can reduce space occupation. The diagonal bracing beam extends along the first direction in a plane perpendicular to the up and down direction. The storage space is large to arrange as many batteries as possible. The diagonal bracing beam can bear the load and strengthen the stability of the bottom of the support frame, effectively improve the structural strength of the support frame, and then improve the structural strength of the box body, and reduce the probability of the bottom of the box body being deformed by force. Taking the size of the box body in the first direction as an example, the size of the standard box with a preset size is smaller than the size of the standard box. The projection area of ​​the box body on the horizontal plane is smaller than the projection area of ​​the standard box on the horizontal plane. Under the same weight conditions, the pressure of the box body is greater than that of the standard box. The diagonal bracing beam can effectively improve the bottom structural strength of the support frame, so that the bottom surface of the frame can bear a large load, and the box body can be stably placed on the bearing surface such as the ground.

[0024] In some embodiments, 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 support 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 bracing beam is clamped between the two longitudinal reinforcement beams.

[0025] 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.

[0026] 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.

[0027] 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 up and down 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 is not only convenient for personnel to enter and exit the maintenance port, but also convenient for external circuits.

[0028] 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 wire outlet is formed on a side surface of the box along the other of the first direction and the second direction.

[0029] 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 site of use, thereby improving the site utilization rate of the site such as a power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural schematic diagram of a first energy storage container in an embodiment of the present application;

[0031] Figure 2 for Figure 1 Schematic diagram of part of the structure of the middle box;

[0032] Figure 3 for Figure 1 A schematic diagram of a frame of a first type of energy storage container is shown;

[0033] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0034] Figure 5 for Figure 1 A schematic diagram of a partial structure of a first energy storage container is shown;

[0035] Figure 6 for Figure 1 A schematic diagram of the first type of energy storage containers stacked in the up-down direction is shown;

[0036] Figure 7 It is a schematic diagram of assembling the first type of energy storage container in a plane perpendicular to the up and down direction;

[0037] Figure 8 This is a structural schematic diagram of a second energy storage container in an embodiment of the present application;

[0038] Fig. 9 for Figure 8 A structural diagram of the second type of energy storage container from another perspective;

[0039] Fig.10 This is a schematic diagram of the assembly of the second type of energy storage container in a plane perpendicular to the up and down directions.

[0040] Description of Reference Numerals

[0041] Box body 1; outlet 1a; accommodating space 1b; frame 11; support frame 111; diagonal bracing beam 112; longitudinal reinforcing beam 113; shielding plate 12; door body 13; stacking unit 10; module 100; operation and maintenance channel 100a; battery 2; cable system 3; liquid cooling pipeline 4; total liquid inlet pipeline 41; total liquid return pipeline 42; liquid inlet branch 43; liquid return branch 44. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0044] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] It should be noted that, in the embodiment of the present application, the first direction is represented by X, the second direction is represented by Y, and the up and down directions are represented by Z, wherein Z1 represents the top, the bottom is the opposite direction to the top, and Z2 represents the bottom.

[0047] In the related art, energy storage containers usually need to be transported from the production site to the use site by land and / or sea transportation. Usually, there are weight limits for land and sea transportation. For example, the load capacity of general road transport vehicles does not exceed 40 tons, and the maximum weight limit of first-class highways and bridges does not exceed 50 tons. This also includes the standard axle weight of 10 to 13 tons for transport vehicles. As a result, the weight of the energy storage container is further limited. The lifting equipment at the stacking site of the energy storage container loading terminal, such as the front crane and the rail crane, is limited to 35 to 45 tons. Usually, the energy storage container belongs to Category 9 hazardous chemicals. The Category 9 hazardous chemicals yard at the terminal is generally designed to be no more than 40 tons (Category 9 hazardous goods need to be isolated from ordinary items, that is, stored separately, and there are strict requirements for the environment, safety equipment, etc. in the storage area). In summary, if the power of the energy storage container in the relevant technology is to be increased, the weight of the energy storage container will also increase accordingly. Excessive weight will lead to a sharp increase in transportation difficulty and cost, which increases the requirements for the conventional transportation and transshipment equipment involved in the above-mentioned transportation process, such as the transportation vehicles, transportation roads, terminal yards, and lifting equipment. It is not easy to improve the transportation capacity of conventional transportation and transshipment equipment in the entire transportation process, and the cost of investment will be very high.

[0048] See also Figure 1 and Figure 8 An embodiment of the present application provides an energy storage container, which includes a box body 1. In three directions, namely, a first direction X, a second direction Y, and an up-down direction Z, the dimensions of the box body 1 in two of the directions are the same as those of a standard box of a preset size, and the dimension of the box body 1 in another direction is smaller than that of a standard box of a preset size, and the preset size is 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet; wherein, the first direction X, the second direction Y, and the up-down direction Z are perpendicular to each other.

[0049] A standard container is a universal container with preset dimensions that meets the standard requirements of at least two different regions or countries for transportation, including but not limited to land and / or sea transportation.

[0050] In the embodiment of the present application, the dimensions of the box body 1 in two directions are the same as those of a standard box with preset dimensions, and the dimension of the box body 1 in another direction is smaller than the dimension of the standard box with preset dimensions. That is to say, the dimension of the box body 1 in only one direction is smaller than the preset dimension of the standard box. The preset dimension of the standard box meets the requirements of field standards and can be used across regions. In this way, without significantly changing the dimension of the box body 1, the box body 1 can reduce its weight and can match conventional transportation and transshipment equipment to meet the transportation needs of land and / or sea transportation.

[0051] It should be understood that the dimensions of the box body 1 in each direction are the dimensions of the outer contour shape of the box body 1 .

[0052] The preset size may be 10 feet, 20 feet, 30 feet, 40 feet or 45 feet. The above sizes may be defined according to the requirements of the field standards. For example, the preset size may be the standard requirements defined by the laws and regulations, departmental regulations, etc. of various countries regarding land transportation and / or sea transportation. For example, the preset sizes are described below:

[0053] 10 feet can include: the dimension in the first direction X is 2991mm, with a tolerance of 0mm-5mm; the dimension in the second direction Y is 2438mm, with a tolerance of 0mm-5mm; and the dimension in the up and down direction Z is no more than 2438mm; with a tolerance of 0mm-5mm.

[0054] 20 feet can include: the dimension in the first direction X is 6058mm, with a tolerance of 0mm-6mm; the dimension in the second direction Y is 2438mm, with a tolerance of 0mm-5mm; and the dimension in the up and down directions Z is 2896mm, 2591mm or no more than 2438mm; with a tolerance of 0mm-5mm.

[0055] 30 feet can include: the dimension in the first direction X is 9125mm, with a tolerance of 0mm-10mm; the dimension in the second direction Y is 2438mm, with a tolerance of 0mm-5mm; and the dimension in the up and down directions Z is 2896mm, 2591mm or no more than 2438mm; with a tolerance of 0mm-5mm.

[0056] 40 feet can include: the dimension in the first direction X is 12192mm, with a tolerance of 0mm-10mm; the dimension in the second direction Y is 2438mm, with a tolerance of 0mm-5mm; and the dimension in the up and down directions Z is 2896mm, 2591mm or no more than 2438mm; with a tolerance of 0mm-5mm.

[0057] 45 feet can include: the dimension in the first direction X is 13716mm, with a tolerance of 0mm-10mm; the dimension in the second direction Y is 2438mm, with a tolerance of 0mm-5mm; and the dimension in the up and down direction Z is 2591mm or 2896mm; with a tolerance of 0mm-5mm.

[0058] For some examples, see Figure 1 and Figure 5 The energy storage container includes a battery 2 disposed in a box body 1, and the weight of a single battery 2 is 5kg to 60kg. Exemplarily, the weight of a single battery 2 is 5kg, 10kg, 15kg, 20kg, 25kg, 30kg, 35kg, 40kg, 45kg, 50kg, 55kg or 60kg, etc. The weight of a single battery 2 is appropriate so that an appropriate amount of batteries 2 can be placed in the box body 1, and the energy density is moderate when the transportation requirements are met.

[0059] It should be noted that the unit "kg" means kilogram.

[0060] In some embodiments, the number of batteries 2 is 416 to 2080. Exemplarily, the number of batteries 2 is 416, 500, 600, 700, 800, 950, 1000, 2000 or 2080, etc. The number of batteries 2 refers to the number of batteries 2 in a single box 1. The weight of a single battery 2 and the number of batteries 2 are reasonably matched so that the total weight of all batteries 2 meets the transportation requirements and the energy density per unit area of ​​the box 1 is improved.

[0061] In some embodiments, the total weight of all batteries 2 is 10 tons to 25 tons. Exemplarily, the total weight of all batteries 2 is 10 tons, 15 tons, 18 tons, 20 tons or 25 tons, etc. The total weight of all batteries 2 is the sum of the weights of all batteries 2 in a single box 1. In this way, the total weight of all batteries 2 meets the transportation requirements, and the energy density of the energy storage container is relatively large.

[0062] In the embodiment of the present application, the battery 2 may be a secondary battery, which refers to a battery that can be continuously used by activating the active material by charging after the battery is discharged.

[0063] The battery 2 may be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery and / or a lead storage battery.

[0064] The battery 2 may be a cylindrical battery, a prismatic battery or a battery of other shapes. The prismatic battery includes a square-shell battery or a multi-prismatic battery, and the multi-prismatic battery is, for example, a hexagonal battery, etc., and the present application has no particular limitation.

[0065] The battery 2 includes a housing, an electrode assembly and an electrolyte, wherein the housing is used to encapsulate the electrode assembly and the electrolyte and other components. Exemplarily, the electrode assembly includes a positive electrode, a negative electrode and a separator. During the charge and discharge process of the battery 2, active ions (such as lithium ions) in the electrolyte are inserted and removed back and forth between the positive electrode and the negative electrode to achieve charge and discharge.

[0066] In some embodiments, at least one of the main control box, distribution box, liquid cooling unit, master control box and bus is not provided in the box 1. In this embodiment, the present application breaks the convention, and at least one of the main control box, distribution box, liquid cooling unit, master control box and bus is not in the box 1. With such a design, on the one hand, the space originally occupied by at least one of the main control box, distribution box, liquid cooling unit, master control box and bus in the box 1 can be used to place the battery 2, thereby increasing the number of batteries 2 in the box 1, maximizing the use of the internal space of the box 1, and thus improving the energy density of the entire energy storage container. On the other hand, the number of device types inside the box 1 is reduced, which can reduce the frequency of operation and maintenance of the energy storage container during normal use.

[0067] The main control box can be used to provide control functions for the battery 2. The distribution box can be used to provide power and circuit protection functions for electrical devices. The liquid cooling unit can be used to drive the flow of coolant. The main control box can be used to provide monitoring and management functions for the battery 2. The bus can be used to connect multiple cable branches of the energy storage container. It can be understood that the main control box, the distribution box, the liquid cooling unit, the main control box and the bus can all adopt structures in the prior art.

[0068] The coolant is a liquid used to exchange heat with the battery 2 , and for example, the coolant includes but is not limited to water.

[0069] For some examples, see Figure 1 and Figure 5 , the box 1 is filled with batteries 2, fire protection system, liquid cooling pipeline 4 and cable system 3. In other words, only batteries 2, fire protection system, liquid cooling pipeline 4 and cable system 3 can be set 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.

[0070] The fire protection system is used to provide fire extinguishing functions. The liquid cooling pipeline 4 is used to circulate the coolant to exchange heat with the battery 2. The liquid cooling pipeline 4 can be formed by pipeline connection. Exemplarily, the liquid cooling pipeline 4 can be connected to the external pipeline through the liquid cooling pipeline 4 adapter plate. The cable system 3 is used to be electrically connected to the battery 2 to achieve power and signal transmission. The cable system 3 can be formed by cable connection. Exemplarily, the cable system 3 can be used to electrically connect to at least one of the main control box, distribution box, main control box and bus outside the box body 1. The cable system 3 may include a distribution line and a communication signal transmission line. Exemplarily, the cable system 3 can be connected to the external circuit through a high and low voltage output adapter plate.

[0071] For some examples, see Figures 1 to 5 A receiving space 1b is formed in the box body 1. The receiving space 1b is used to place components such as a battery 2, a fire protection system, a liquid cooling pipeline 4 and / or a cable system 3, etc.

[0072] For some examples, see Figure 5 , Figure 5 The liquid cooling pipeline 4 is shown by a dotted line. 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 a liquid inlet branch 43 and a liquid return branch 44. Each liquid inlet branch 43 is connected to the total liquid inlet pipeline 41, and each liquid return branch 44 is connected to the total liquid return pipeline 42. Exemplarily, if the number of batteries 2 is at least two, the number of liquid inlet branches 43 and the number of liquid return branches 44 are both at least two. In other words, the batteries 2, the liquid inlet branches 43 and the liquid return branches 44 can correspond one to one.

[0073] The coolant can enter the housing 1 through the main liquid inlet pipeline 41, and then flow through the battery 2 through the liquid inlet branch 43 to exchange heat with the battery 2. The coolant after heat exchange flows to the main liquid return pipeline 42 through the liquid return branch 44. The coolant in all the liquid return branches 44 can flow out of the housing 1 through the main liquid return pipeline 42.

[0074] In this embodiment, the liquid inlet branch 43 and the liquid return branch 44 enable each battery 2 to contact the coolant for sufficient heat exchange. The coolant is concentrated into the box body 1 through the total liquid inlet pipeline 41, and then divided through the liquid inlet branch 43, which can simplify the coolant inlet path, save pipelines, save space, and reduce the total weight of the liquid cooling pipeline 4. The coolant is concentrated out of the box body 1 through the total liquid return pipeline 42, which can simplify the coolant discharge path and save pipelines.

[0075] It can be understood that the battery 2, the fire fighting system and the cable system 33 can adopt the structures in the prior art.

[0076] For some examples, see Figure 5 At least two batteries 2 are arranged along a plane perpendicular to the up-down direction Z to form a layer of battery packs, at least two battery packs are stacked along the up-down direction Z, and the total liquid inlet pipeline 41 and the total liquid return pipeline 42 are arranged above the uppermost battery pack Z1. Exemplarily, one end of the liquid inlet branch 43 is connected to the total liquid inlet pipeline 41, and the other end of the liquid inlet branch 43 extends to the battery 2 below. The top space of the box body 1 is relatively open, which is convenient for pipe laying, and can avoid the total liquid inlet pipeline 41 and the total liquid return pipeline 42 from interfering with the stacking of at least two battery packs.

[0077] For some examples, see Figure 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 layer of battery pack. At least two batteries 2 are arranged side by side along the second direction Y means that at least two batteries 2 are arranged in parallel along their thickness direction. Taking the square shell battery 2 as an example, the large surfaces of at least two square shell batteries 2 are arranged in parallel. For example, the battery 2 is placed along the up-down direction Z, the large surface of the battery 2 is parallel to the up-down direction Z, and at least two batteries 2 of the battery unit are arranged in parallel.

[0078] For some examples, see Figures 1 to 7 , the size of the box 1 in the first direction X and the second direction Y is the same as the size of the standard box of the preset size, and the size of the box 1 in the up-down direction Z is smaller than the size of the standard box of the preset size. For example, the size of the box 1 in the up-down direction Z can be one-third or one-half of the size of the standard box of the preset size, etc. In other words, the height of the box 1 is half or one-third of the height of the standard box. With such a design, on the one hand, each box 1 can be transported separately, and can be stacked in the up-down direction Z and / or assembled along a plane perpendicular to the up-down direction Z according to needs at the place of use, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the size of the box 1 in the first direction X and the second direction Y is the same as the size of the standard box of the preset size, and the floor space of a single box 1 is unchanged compared to the standard box, and the foundation of at least two boxes 1 stacked in the up-down direction Z is relatively stable. At least two boxes 1 are stacked in the up-down direction Z, which can reduce the total floor space and facilitate the space utilization of the place of use, such as the power station site.

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

[0080] For some examples, see Figures 8 to 10, the size of the box 1 in the second direction Y and the up-down direction Z is the same as the size of the standard box of the preset size, and the size of the box 1 in the first direction X is smaller than the size of the standard box of the preset size. For example, the size of the box 1 in the first direction X can be one-third or one-half of the size of the standard box of the preset size, and so on. Taking the first direction X as the length direction of the standard box as an example, the length of the box 1 is half or one-third of the length of the standard box. On the one hand, each box 1 can be transported separately, and can be stacked in the up-down direction Z or assembled along a plane perpendicular to the up-down direction Z according to needs at the place of use, thereby achieving the purpose of reducing the difficulty and cost of transportation. On the other hand, the footprint of a single box 1 is reduced, which is conducive to the space utilization of the place of use, such as a power station site.

[0081] For some examples, see Figures 1 to 4 The box body 1 includes a frame 11 and a shielding plate 12, the frame 11 includes a carrier frame 111 and a diagonal bracing beam 112, the shielding plate 12 covers the outer surface of the carrier frame 111, the diagonal bracing beam 112 is arranged at the bottom of the carrier frame 111, and the diagonal bracing beam 112 extends along 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.

[0082] In this embodiment, the box body 1 adopts a frame 11 and a shielding plate 12. The shielding plate 12 covers the outer surface of the carrier 111 to prevent foreign objects from contacting the battery 2 in the storage space 1b. The carrier 111 is a hollow frame with a light weight, which can reduce space occupation. The diagonal bracing beam 112 extends along the first direction X in a plane perpendicular to the up-down direction Z. The storage space 1b is large to arrange as many batteries 2 as possible. The diagonal bracing beam 112 can bear the load and strengthen the stability of the bottom of the carrier 111, effectively improving the structural strength of the carrier 111, thereby improving the structural strength of the box body 1 and reducing the probability of deformation of the bottom of the box body 1 under stress. Taking the example of a box 1 whose size in the first direction X is smaller than that of a standard box of a preset size, the projected area of ​​the box 1 on the horizontal plane is smaller than that of the standard box. Under the same weight conditions, the pressure of the box 1 is greater than that of the standard box. The diagonal bracing beam 112 can effectively improve the bottom structural strength of the load-bearing frame 111, so that the bottom surface of the frame 11 can bear a larger load, and the box 1 can be stably placed on a load-bearing surface such as the ground.

[0083] In some embodiments, the shielding sheet 12 comprises a corrugated sheet, such as a low-corrugated sheet.

[0084] For some examples, see Figure 2 and Figure 5 The carrier frame 111 is formed with a receiving space 1b. The receiving space 1b is used to receive the battery 2 and other devices, such as a fire protection system, a liquid cooling pipeline 4 and a cable system 3.

[0085] The material of the support frame 111 is not limited. Exemplarily, the material of the support frame 111 includes but is not limited to metal materials, such as steel.

[0086] The material of the diagonal bracing beam 112 is not limited. For example, the material of the diagonal bracing beam 112 includes but is not limited to metal materials, such as steel.

[0087] The shape of the diagonal bracing beam 112 is not limited. For example, the diagonal bracing beam 112 may be a square tube with a quadrilateral cross-section.

[0088] The connection method between the diagonal bracing beam 112 and the supporting frame 111 is not limited. For example, the diagonal bracing beam 112 and the supporting frame 111 can be connected in a non-detachable manner or in a detachable manner. The non-detachable connection includes but is not limited to welding.

[0089] The outer contour of the box body 1 is in the shape of a hexahedron. In some embodiments, the support frame 111 may include 4 longitudinal rods extending along the first direction X, 4 vertical rods extending along the vertical direction Z, and 4 horizontal rods extending along the second direction Y, and the above-mentioned rods are collectively the edges of the hexahedron. In this way, the support frame 111 forms a hollow hexahedron, and the six faces of the hexahedron are all covered with the shielding plate 12. The longitudinal rods, vertical rods, and horizontal rods can all be square tubes with a quadrilateral cross-sectional shape.

[0090] For some examples, see Figure 3 to Figure 4 The frame 11 includes a longitudinal reinforcing beam 113 extending along the first direction X. The two longitudinal reinforcing beams 113 are both arranged at the bottom of the carrier 111. The two longitudinal reinforcing beams 113 are spaced apart along the up-down direction Z. At least one end of a portion of the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113. Exemplarily, both ends of the longitudinal reinforcing beam 113 along the first direction X are connected to the carrier 111. For example, one end of a portion of the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113, and one end of the remaining portion of the diagonal bracing beams 112 is not clamped between the two longitudinal reinforcing beams 113. For another example, one end of all the diagonal bracing beams 112 is clamped between the two longitudinal reinforcing beams 113.

[0091] In this embodiment, on the one hand, the two longitudinal reinforcing beams 113 can further enhance the structural strength of the bottom of the frame 11 ; on the other hand, one end of the diagonal bracing beam 112 is fixed by the two longitudinal reinforcing beams 113 , which can enhance the connection stability of the diagonal bracing beam 112 .

[0092] The material of the longitudinal reinforcing beam 113 is not limited. Exemplarily, the material of the longitudinal reinforcing beam 113 includes but is not limited to metal materials, such as steel.

[0093] The connection method between the longitudinal reinforcing beam 113 and the carrier 111 is not limited. For example, the longitudinal reinforcing beam 113 and the carrier 111 can be connected in a non-detachable manner or in a detachable manner. The non-detachable connection includes but is not limited to welding.

[0094] For some examples, see Figure 1 , Figure 2 and Figure 7 The box body 1 is formed with a maintenance port and a wire outlet 1a, which are respectively formed on two different side surfaces of the box body 1 along the circumferential direction. The maintenance port is a window for operators to enter and exit the box body 1 to repair the components inside the box body 1. The wire outlet 1a is a window for the cables inside the box body 1 to connect to the external circuit. The maintenance port and the wire outlet 1a are respectively formed on the circumference of the box body 1, and at least two boxes 1 stacked in the up and down direction Z will not block the maintenance port and the wire outlet 1a; the maintenance port and the wire outlet 1a are located on two different side surfaces and will not interfere with each other, which is not only convenient for personnel to enter and exit the maintenance port, but also convenient for external circuits.

[0095] It should be noted that the circumferential direction is the direction of a straight line extending along the up-down direction Z. Two side surfaces that are different along the circumferential direction refer to two side surfaces that are oriented differently in the circumferential direction. Exemplarily, taking the first direction X as the front-to-back direction and the second direction Y as the left-to-right direction as an example, for example, the two side surfaces that are different along the circumferential direction may be the front side surface and the rear side surface of the box body 1; for another example, the two side surfaces that are different along the circumferential direction may be the left side surface and the right side surface of the box body 1; for another example, the two side surfaces that are different along the circumferential direction may be one of the front side surface or the rear side surface, and the other of the two side surfaces may be the left side surface or the right side surface.

[0096] In some embodiments, a receiving space 1 b is formed in the box body 1 , and the maintenance port and the wire outlet 1 a are both in communication with the receiving space 1 b .

[0097] For some examples, see Figure 1 , Figure 2 and Figure 6 The energy storage container includes a door body 13, which is used to selectively open or close the maintenance port. For example, one end of the door body 13 is rotatably connected to the box body 1, and the other end of the door body 13 can be opened and closed.

[0098] For some examples, see Figure 1 , Figure 2 and Figure 6The maintenance port is formed on the side of the box body 1 along one of the first direction X and the second direction Y, and the outlet port 1a is formed on the side of the box body 1 along the other of the first direction X and the second direction Y. The maintenance port and the outlet port 1a are respectively formed on two adjacent side surfaces of the box body 1 along the circumferential direction. With this design, the end surfaces of the two boxes 1 away from the outlet port 1a can abut against each other, reducing the gap between the boxes 1, making it easier to assemble the boxes 1 along the first direction X or the second direction Y at the place of use, thereby improving the site utilization rate of the place of use, such as a power station.

[0099] For some examples, see Figure 6 , Figure 7 and Fig.10 , the stacking unit 10 includes at least one box body 1 or at least two boxes 1 stacked along the up-down direction Z, and at least two stacking units 10 can be assembled in a horizontal plane. Two stacking units 10 constitute a module 100, and the outlets 1a of the two stacking units 10 of the module 100 can be separated from each other, and the end surfaces of the two stacking units 10 of the module 100 facing each other can abut. For example, the outlets 1a in the two stacking units 10 of the module 100 are respectively facing the left side and the right side, and the end surfaces of the two stacking units 10 of the module 100 facing each other can abut. For another example, the outlets 1a in the two stacking units 10 of the module 100 are respectively facing the front side and the rear side, and the end surfaces of the two stacking units 10 of the module 100 facing each other can abut.

[0100] It can be understood that when at least two stacking units 10 are assembled on a horizontal plane, two adjacent boxes 1 along the front-to-back direction or the left-to-right direction are spaced apart to form an operation and maintenance channel 100a, and the operation and maintenance channel 100a can be used for workers to pass through, so that the workers can move to the location of the box 1 that needs maintenance.

[0101] In some embodiments, two stacking units 10 of the module 100 are arranged along the first direction X, and at least two modules 100 may be arranged at intervals along the second direction Y. In the second direction Y, the interval space between two adjacent modules 100 is an operation and maintenance channel 100a.

[0102] In other embodiments, two stacking units 10 of the module 100 are arranged along the second direction Y, and at least two modules 100 may be arranged at intervals along the first direction X. In the first direction X, the interval space between two adjacent modules 100 is an operation and maintenance channel 100a.

[0103] As an example, see Figures 1 to 7, a battery 2, a fire protection system, a liquid cooling pipeline 4 and a cable system 3 are arranged in the accommodating space 1b of the box 1. The dimensions of the box 1 in the first direction X and the second direction Y are the same as those of a standard box of preset dimensions, and the dimension of the box 1 in the vertical direction Z is half of the dimension of a standard box of preset dimensions. Exemplarily, a flatbed truck with a horizontal load-bearing area of ​​20 feet is usually used to transport energy storage containers. The projection area of ​​the box 1 of the present application on the horizontal plane is the same as that of a standard box, which is 20 feet. At least two boxes 1 can be transported separately to the place of use, such as a power station site, by a 20-foot flatbed truck. The axle load distribution of the flatbed truck during transportation is more uniform, and transportation is safer. At least two boxes 1 are stacked in the vertical direction Z at the place of use to form a stacking unit 10. For example, two, three or more boxes 1 can be stacked in the vertical direction Z to form a stacking unit 10.

[0104] See also Figure 7 , at least two stacking units 10 can be assembled in a horizontal plane. Two stacking units 10 constitute a module 100, and the outlets 1a of the two stacking units 10 of the module 100 can be away from each other, and the end surfaces of the two stacking units 10 of the module 100 facing each other can abut. For example, the outlets 1a in the two stacking units 10 of the module 100 are respectively facing the left and right sides, and the end surfaces of the two stacking units 10 of the module 100 facing each other can abut. For another example, the outlets 1a in the two stacking units 10 of the module 100 are respectively facing the front and the rear sides, and the end surfaces of the two stacking units 10 of the module 100 facing each other can abut. With this design, the two stacking units 10 of the module 100 occupy an area of ​​approximately 40 feet, and the area utilization rate of the overall power station will be higher.

[0105] Taking sea transportation as an example, the storage fee is charged according to the standard container. If the size of the non-standard container is used, the storage fee is also charged according to the standard container. In this embodiment, the size of the box 1 in the vertical direction Z is half of the size of the 20-foot standard container. Two boxes 1 can be stacked in the vertical direction Z for sea transportation. The total height of the two boxes 1 stacked in the vertical direction Z is the same as the height of the 20-foot standard container. In this way, the two boxes 1 can still be charged as a 20-foot standard container during sea transportation.

[0106] It can be understood that according to the above embodiment, the size of the box 1 in the up-down direction Z can be one-third or one-quarter of the size of a standard box of a preset size, etc. During sea transportation, three or four boxes 1 can be stacked in the up-down direction Z so that the total height dimension of the multiple boxes 1 stacked in the up-down direction Z is the same as the height dimension of the standard box. It is also possible that multiple boxes 1 can still be charged as one standard box during sea transportation, saving transportation costs.

[0107] See also Figures 1 to 7The box 1 includes a frame 11 and at least two shielding plates 12. The frame 11 includes a load frame 111 and a diagonal bracing beam 112. Each shielding plate 12 covers the outer surface of the load frame 111. The diagonal bracing beam 112 is arranged at the bottom of the load frame 111, and the diagonal bracing beam 112 extends along the third direction in a plane perpendicular to the up-down direction Z. The frame 11 includes a longitudinal reinforcing beam 113 extending along the first direction X. Both longitudinal reinforcing beams 113 are arranged at the bottom of the load frame 111. The two longitudinal reinforcing beams 113 are arranged at intervals along the up-down direction Z, and at least one end of a part 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 along the up-down direction Z can be placed more stably on a load-bearing surface such as the ground.

[0108] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. An energy storage container, characterized in that: It includes a box body, in three directions of 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 the dimensions of a standard box of preset dimensions, and the dimension of the box body in another direction is smaller than the dimension 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, characterized in that: The energy storage container includes a battery disposed in the container, and the weight of a single battery is 5kg to 60kg.

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

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

6. The energy storage container according to claim 1, characterized in that: 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, characterized in that: The liquid cooling pipeline includes a total liquid inlet pipeline, a total liquid return pipeline, a liquid inlet branch and a liquid return branch. Each battery corresponds to a liquid inlet branch and a liquid return branch. Each of the liquid inlet branches is connected to the total liquid inlet pipeline, and each of the liquid return branches is connected to the total liquid return pipeline.

8. The energy storage container according to claim 7, characterized in that: At least two of the batteries are arranged along a plane perpendicular to the up-down direction to form a layer of battery packs, at least two of the battery packs 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 pack.

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

11. The energy storage container according to any one of claims 1 to 10, characterized in that: 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, characterized in that: The maintenance port is formed on a side surface of the box along one of a first direction and a second direction, and the wire 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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