Energy storage container and energy storage system

Abstract

The utility model provides an energy storage container and an energy storage system. The energy storage container comprises a container body, a battery module and a heat dissipation unit. The box body comprises a first side plate, a second side plate and a top plate, the first side plate and the second side plate are oppositely arranged, the top plate is connected between the first side plate and the second side plate, the box body is provided with a temperature control bin, a battery bin, a first air inlet and an air outlet, and the temperature control bin and the battery bin are located in the box body and are sequentially arranged; the first air inlet penetrates through the first side plate and communicates with the temperature control bin, and the air outlet penetrates through the top plate. The battery module is installed in the battery compartment. The heat dissipation unit comprises a liquid cooling assembly, a pipeline and a fan, the liquid cooling assembly and the fan are both installed in the temperature control bin, the liquid cooling assembly communicates with the battery module through the pipeline, the fan is located on the side, facing the top plate, of the liquid cooling assembly, and the air outlet side of the fan is opposite to the air outlet. According to the embodiment of the invention, the internal structure of the energy storage container can be adjusted, so that the heat dissipation mode of the energy storage container is optimized, and the temperature of the battery module is more controllable.

Description

Technical Field

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

[0002] With the large-scale application of new energy sources such as solar energy and wind energy, electrochemical energy storage has become popular because it is not restricted by geographical terrain and can quickly store and release electrical energy. The construction of electrochemical energy storage power stations usually requires the layout of energy storage devices. Existing energy storage devices usually use containers as carriers for convenient transportation. This makes the logistics operation of energy storage devices more efficient. However, due to the large size of the container, the temperature of the internal battery module is difficult to control. Utility Model Content

[0003] Based on this, the present application provides an energy storage container and an energy storage system, which can adjust the structure of the energy storage container without affecting the energy density of the energy storage container so that the temperature of the battery module is more controllable.

[0004] In the first aspect, the present application provides an energy storage container, which includes a box body, a battery module and a heat dissipation unit. The box body includes a first side panel, a second side panel and a top panel, the first side panel and the second side panel are arranged opposite to each other, the top panel is connected between the first side panel and the second side panel, the box body is provided with a temperature control compartment, a battery compartment, a first air inlet and an air outlet, the temperature control compartment and the battery compartment are both located inside the box body, and the temperature control compartment and the battery compartment are arranged in sequence along the direction from the first side panel to the second side panel, the first air inlet passes through the first side panel and is connected to the temperature control compartment, and the air outlet passes through the top panel and is connected to the temperature control compartment. The battery module is installed in the battery compartment. The heat dissipation unit includes a liquid cooling component, a pipeline and a fan, the liquid cooling component and the fan are both installed in the temperature control compartment, the liquid cooling component is connected to the battery module through a pipeline, the fan is located on the side of the liquid cooling component facing the top panel, and the air outlet side of the fan is opposite to the air outlet.

[0005] In this embodiment, the liquid cooling component can transfer the cooling medium to the battery module, so that the battery module dissipates heat. The fan can draw air into the chassis from the first air inlet, and then take away the heat of the cooling medium in the chassis. The fan can discharge the gas from the air outlet, so as to dissipate the heat outside the chassis.

[0006] In addition, since the battery module and the heat dissipation unit in the energy storage container are separated, the heat dissipation unit and the battery module are located in different compartments respectively, so that the heat dissipation process of the heat exchanger of the heat dissipation unit can be carried out separately from the heat dissipation process of the battery module. The air cooling process of the heat dissipation unit can be completed in the temperature control compartment. The liquid cooling process of the battery module can be completed in the battery compartment. Avoid the air cooling process affecting the temperature of the battery module, resulting in different temperatures at different positions of the battery module, causing inaccurate temperature measurement by the sensor. Liquid cooling of the battery module can ensure that the temperature of the battery packs at different positions is relatively balanced, making the temperature of the battery module more controllable, thereby improving the temperature control efficiency.

[0007] Furthermore, since the air outlet is located above the first air inlet, the air can flow from bottom to top, which is in line with the chimney effect of air flow, thereby increasing the air flow rate and thus improving the heat dissipation efficiency of the cooling medium in the temperature control chamber.

[0008] In a possible implementation, the heat dissipation unit further includes a heat exchanger, the heat exchanger is located between the fan and the liquid cooling assembly, the heat exchanger is opposite to the first side plate and is spaced apart, and the heat exchanger is connected to the battery module.

[0009] In this embodiment, the liquid cooling assembly can transfer the cooling medium from the pipeline to the battery module. After the cooling medium absorbs the heat in the battery module, the cooling medium can flow from the battery module to the heat exchange cavity of the heat exchanger. The cooling medium in the heat exchange cavity can exchange heat with the outside air through the surface of the heat exchanger, thereby cooling the cooling medium.

[0010] In addition, when the fan is working, it can suck air from the first air inlet and make the air flow along the surface of the heat exchanger, thereby taking away the heat on the surface of the heat exchanger to cool the cooling medium inside the heat exchanger.

[0011] In a possible embodiment, the box body further includes a door panel and a third side panel, the door panel and the third side panel are arranged opposite to each other, connected between the first side panel and the second side panel, and connected to the top panel. The box body is also provided with a first auxiliary air inlet, the first auxiliary air inlet passes through the door panel and is connected to the temperature control chamber.

[0012] In the present application, the first air inlet and the second air inlet of the box can simultaneously inhale air to form an airflow, and a large amount of air is blown toward the heat exchanger, so that the heat of the heat exchanger can be transferred to the air more quickly, thereby increasing the heat dissipation speed of the heat exchanger to the cooling medium.

[0013] In actual use, even if one of the air inlets of the energy storage container is blocked, there are other air inlets in the box for air to enter. The air inlet of the box will not be completely closed, so as to ensure that the heat exchanger inside the box can dissipate heat through air cooling in time, and avoid the heat exchanger being unable to dissipate the temperature of the cooling medium, resulting in a large amount of heat accumulation in the battery module, which makes it unable to work normally or explode.

[0014] In a possible implementation manner, an opening area of ​​the first air inlet is larger than an opening area of ​​the second air inlet.

[0015] In a possible implementation manner, the box body is further provided with a third air inlet, the third air inlet passes through the third side plate, and is connected to the temperature control chamber.

[0016] In a possible embodiment, the box body further includes a first partition, the first partition is located between the first side plate and the second side plate, a temperature control compartment is provided between the first partition and the first side plate, a battery compartment is provided between the first partition and the second side plate, the temperature control compartment has a compartment opening away from the third side plate, and the battery compartment has a compartment opening away from the third side plate. When the door panel is in a closed state, the door panel covers the compartment openings of the temperature hole compartment and the battery compartment.

[0017] In a possible implementation, the box body is a rectangular parallelepiped structure, the length of the box body is half the length of a 20-foot container, the height of the box body is the height of a 20-foot container, and the width of the box body is the width of a 20-foot container.

[0018] In this embodiment, two energy storage containers are connected along the length direction to form a whole, so that the size of the overall outer contour is the same as the size of a 20-foot container of the international standard. Therefore, during transportation, it is convenient to stack and arrange the whole composed of the two energy storage containers, so that the energy storage containers can be transported using the transportation method of a 20-foot container.

[0019] Furthermore, the transportation cost of two energy storage containers can be the same as that of one 20-foot container, so the transportation cost of a single energy storage container can be half of that of a standard 20-foot container, thereby reducing the transportation cost of a single energy storage container. Furthermore, since the number of battery packs arranged inside the energy storage container is less than that of a 20-foot container, the embodiment of the present application meets the use requirements of small power stations and other scenarios by reducing the freight and power granularity of the energy storage container.

[0020] In a possible implementation, the box body is further provided with a power distribution compartment, which is located inside the box body and on the side of the battery compartment away from the temperature control compartment. The energy storage container also includes a power distribution unit, which is installed in the power distribution compartment and is electrically connected to the battery module.

[0021] In this embodiment, the power distribution unit is arranged close to the second side panel, and the power distribution unit can directly lead out the wires from one side of the second side panel, so that the operator can electrically connect the power distribution unit to the external power consumption equipment. Avoid the battery module blocking the outlet position of the power distribution unit, and ensure that the power distribution unit has a larger area for leading out the wires, so as to facilitate the flexible connection between the power distribution unit and the external power consumption equipment. Since the power distribution unit is close to the box plate of the energy storage container, the length of the wires leading out of the power distribution unit does not need to be configured too long. The wires can connect the power distribution unit to the external equipment, so the length of the wires is shorter, thereby reducing the loss of the wires in the transmission of electricity, so that the utilization rate of electricity is higher.

[0022] Furthermore, the present application separates the power distribution unit from the battery module, so that the battery module has an independent battery compartment. The battery packs can be regularly arranged in the battery compartment without being restricted by the equipment of the power distribution unit, thereby improving the space utilization of the battery compartment.

[0023] The power distribution compartment and the battery compartment are separated by a second partition.

[0024] In this embodiment, the power distribution unit is isolated from the battery module by the second partition, thereby reducing the electromagnetic interference of the battery module on the power distribution unit. At the same time, the temperature impact of the battery module on the power distribution unit can also be reduced, avoiding the heat generated by the battery module from increasing the temperature around the power distribution unit, ensuring that the power distribution unit can operate within a safe temperature range, and improving the reliability and stability of the power distribution unit.

[0025] In a possible implementation, the power distribution unit includes a wiring harness and a cluster control box, the wiring harness is located on a side of the cluster control box away from the top plate, and the wiring harness electrically connects the cluster control box and the battery module.

[0026] In a possible implementation manner, the distance between the battery module and the top plate ranges from 20 mm to 100 mm, and the distance between the battery module and the bottom plate of the box body ranges from 30 mm to 100 mm.

[0027] In this embodiment, the gap between the battery module and the top plate can be used to install a temperature sensor or a carbon monoxide sensor to monitor the internal environment of the battery compartment. The gap between the battery module and the bottom surface of the box can be used to accommodate wiring, thereby facilitating the electrical connection between the battery module and the cluster control box.

[0028] In a possible implementation, one end of the wiring is connected to the battery module, part of the wiring is located in the gap between the battery module and the bottom plate of the box, and the other end of the wiring is connected to the cluster control box.

[0029] In a possible embodiment, the door panel includes a first door panel, a second door panel and a third door panel, and the first door panel, the second door panel and the third door panel are all located on the same side of the box body, and the first door panel, the second door panel and the third door panel are arranged in sequence along the direction from the first side panel to the second side panel. When the first door panel is in a closed state, the first door panel covers the opening of the temperature control compartment, when the second door panel is in a closed state, the second door panel covers the opening of the battery compartment, and when the third door panel is in a closed state, the third door panel covers the opening of the distribution compartment.

[0030] In this embodiment, the sides of the two energy storage containers with door panels installed can be away from each other, so that the two energy storage containers can be arranged side by side. The heat dissipation components, battery modules and power distribution units can be installed in the energy storage container from the door panel side of the energy storage container to achieve one-way deployment and single-sided door opening of the energy storage container. When the internal components of the energy storage container need to be repaired or replaced, the operator can operate from the door panel side of the box body, and the operating space can only occupy one side of the energy storage container without occupying other sides, so that there is no need to reserve operating space on other sides, thereby reducing the site requirements of the energy storage container and facilitating the deployment of the energy storage container.

[0031] In a possible implementation, the third side panel further includes a first sub-panel, which is disposed opposite to the second door panel in the width direction of the box body, and when the first sub-panel is in an open state, the first sub-panel exposes an opening of the battery compartment toward the third side panel.

[0032] In this embodiment, both sides of the energy storage container along the width direction can be opened. When the first sub-panel and the second door panel are opened, the opposite sides of the battery module can be exposed, thereby facilitating operators to adjust or repair the battery module.

[0033] In a second aspect, the present application provides an energy storage system, the energy storage system comprising at least two energy storage containers as described above, wherein along the length direction of the energy storage containers, at least two of the energy storage containers are arranged side by side and at intervals.

[0034] In a possible implementation manner, the distance between two adjacent energy storage containers is less than or equal to 1.5 m.

[0035] In a third aspect, the present application provides an energy storage system, the energy storage system comprising at least two energy storage containers as described above, wherein along the width direction of the energy storage containers, at least two of the energy storage containers are arranged side by side and at intervals.

[0036] In a possible implementation manner, the distance between two adjacent energy storage containers is less than or equal to 0.6 m.

[0037] In this embodiment, since the energy storage container can take in air from the first air inlet of the first side panel and the power distribution unit can lead out the wires from the second side panel, the energy storage containers are arranged side by side in the width direction so that the two energy storage containers can be as close to each other as possible, thereby reducing the distance between the two energy storage containers, thereby improving and reducing the floor space of the energy storage system, improving the site space utilization of the energy storage system, and thus improving the granularity of the electricity consumption of the energy storage system per unit floor space.

[0038] In addition, the first sides of the two energy storage containers with door panels are facing away from each other and the two energy storage containers are connected together. The heat dissipation components, battery modules and power distribution units can be installed in the energy storage containers from the first sides of the energy storage containers to achieve one-way deployment and single-sided door opening of the energy storage containers. When the internal components of the energy storage containers need to be repaired or replaced, the operator can operate from the first side, and the operating space is not limited by the connection site.

[0039] In this embodiment, the energy storage system is suitable for an installation site with a small width and a large length. Two energy storage containers can be arranged side by side along the length direction of the installation site.

[0040] Since the energy storage container has an auxiliary air inlet, the first air inlet located on the first side is slightly blocked without affecting the air intake of the energy storage box. The auxiliary air inlet and the first air inlet can cooperate with each other to intake air so that the air volume can meet the working requirements of the heat exchanger, ensuring that the cooling medium can be cooled in the heat exchanger to prepare for the next cycle cooling of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.

[0042] Figure 1 1 is a schematic structural diagram of an energy storage container provided in an embodiment of the present application at one angle, wherein the door panel of the energy storage container is in a closed state;

[0043] Figure 2 yes Figure 1 The schematic diagram of the structure of the energy storage container shown, wherein the door panel of the energy storage container is in an open state;

[0044] Figure 3 yes Figure 1 A schematic diagram of the structure of the frame shown;

[0045] Figure 4 yes Figure 1 A partial structural schematic diagram of an energy storage container is shown;

[0046] Figure 5 yes Figure 1 A schematic structural diagram of the energy storage container from another angle shown;

[0047] Figure 6 yes Figure 1 A schematic diagram of a portion of the structure of the energy storage container from a top-down perspective is shown;

[0048] Figure 7 yes Figure 4 A structural schematic diagram of a first embodiment of the heat dissipation unit at an angle is shown;

[0049] Figure 8 yes Figure 7 Another structural schematic diagram of the heat dissipation unit shown;

[0050] Fig. 9 yes Figure 2 An angle structural schematic diagram of the second embodiment of the heat dissipation unit shown;

[0051] Fig.10 yes Figure 7 Another structural schematic diagram of the heat dissipation unit shown;

[0052] Fig.11 yes Figure 2 An angle structural schematic diagram of the third embodiment of the heat dissipation unit shown;

[0053] Fig.12 yes Fig. 9 Another structural schematic diagram of the heat dissipation unit shown;

[0054] Fig.13 yes Figure 2 The structural schematic diagram of the fourth embodiment of the heat dissipation unit shown;

[0055] Fig.14 It is composed of two Figure 1 A structural schematic diagram of an energy storage system composed of energy storage containers shown;

[0056] Fig.15 It is composed of two Figure 1 Another structural schematic diagram of an energy storage system composed of energy storage containers shown;

[0057] Fig.16 It consists of four Figure 1 A structural schematic diagram of an energy storage system composed of energy storage containers is shown. DETAILED DESCRIPTION

[0058] The specific embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can also be implemented in other ways different from those described herein, and therefore, the present application is not limited to the following embodiments.

[0059] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0060] Multiple: refers to two or more than two.

[0061] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either direct or indirect through an intermediary.

[0062] The specific implementation of the present application will be clearly described below in conjunction with the accompanying drawings.

[0063] At present, energy storage systems can use the conversion between electrical energy and chemical energy to achieve the storage and output of electrical energy. Energy storage systems are mainly divided into two application scenarios: industrial and commercial energy storage scenarios and power station energy storage scenarios. Industrial and commercial energy storage scenarios usually use energy storage cabinets as carriers, and the power granularity is generally around 200KWh, which is commonly used in large and small factories, commercial office buildings, stations and other scenarios. Power station energy storage scenarios usually use energy storage containers as carriers, and the power granularity is generally at the megawatt-hour level, which is commonly used in large photovoltaic ground power stations, etc.

[0064] The energy storage system provided in the embodiment of the present application is mainly used in power station energy storage scenarios. The energy storage system may include multiple energy storage containers. Multiple energy storage containers are arranged at intervals. Multiple energy storage containers can be connected in series or in parallel, so as to be electrically connected to electrical equipment outside the energy storage system.

[0065] At present, energy storage containers are generally based on international standard 20-foot containers. The external length of a 20-foot container is 20 feet, the external width is eight feet, and the external height is eight feet six inches. Using a standard 20-foot container as a carrier can make the energy storage container have a standardized size and appearance, which is convenient for loading and unloading and transportation of energy storage containers, thereby improving the logistics operation efficiency of energy storage containers. However, the current power granularity of a single 20-foot energy storage container is large and the transportation cost is high, which cannot meet the use requirements of small power stations and other scenarios.

[0066] Based on this, please refer to Figure 1 and Figure 2 , Figure 1 1 is a schematic structural diagram of an energy storage container 10 provided in an embodiment of the present application at one angle, wherein a door panel of the energy storage container 10 is in a closed state. Figure 2 yes Figure 1The schematic diagram of the structure of the energy storage container 10 is shown, wherein the door panel of the energy storage container 10 is in an open state. The present application provides an energy storage container 10, which can fully utilize the internal space of the energy storage container 10 and reasonably arrange the layout of the internal units of the energy storage container 10, thereby reducing the volume of the energy storage container 10 and saving the transportation cost of a single energy storage container 10 without affecting the energy density of the energy storage container 10.

[0067] In the figure, the X direction is the width direction of the energy storage container 10. The external width of the energy storage container 10 can be the external width of a 20-foot container, and the external width of the energy storage container 10 can be 8 feet. In the figure, the Y direction is the length direction of the energy storage container 10. The external length of the energy storage container 10 can be half of the external length of a 20-foot container, and the external length of the energy storage container 10 can be 10 feet. In the figure, the Z direction is the height direction of the energy storage container 10. The external height of the energy storage container 10 can be the external height of a 20-foot container, and the external height of the box body 11 can be 8.5 feet.

[0068] The energy storage container 10 includes a box body 11, a battery module 12, a heat dissipation unit 13 and a power distribution unit 14. The box body 11 includes a temperature control compartment 101, a battery compartment 102 and a power distribution compartment 103. The temperature control compartment 101 and the power distribution compartment 103 are respectively located on two opposite sides of the battery compartment 102 along the Y direction. The battery module 12 is installed in the battery compartment 102, and the heat dissipation unit 13 is installed in the temperature control compartment 101. The power distribution unit 14 is installed in the power distribution compartment 103. Among them, the battery module 12 is used to store electricity. The heat dissipation unit 13 is used to dissipate heat for the battery module 12. The power distribution unit 14 can control or assist the battery module 12 to work.

[0069] The box body 11 includes a frame body 111 and a box plate 112. The box plate 112 can be fixedly connected to the frame body 111.

[0070] Please refer to Figure 3 , Figure 3 yes Figure 1 The structural diagram of the frame 111 shown in the figure. The frame 111 includes a bottom beam 113, a top beam 114, a vertical beam 115 and a door beam (not shown). The top beam 114 and the bottom beam 113 are arranged opposite to each other in the height direction of the frame 111. The vertical beam 115 and the door beam are connected between the top beam 114 and the bottom beam 113.

[0071] The bottom beam 113 includes two first beams 1131 and two second beams 1132. The two first beams 1131 extend along the length direction of the box body 11 and are spaced opposite to each other along the width direction of the box body 11. The two second beams 1132 extend along the width direction of the box body 11 and are spaced opposite to each other along the length direction of the box body 11. One first beam 1131, the first and second beams 1132, another first beam 1131 and another second beam 1132 are connected end to end in sequence.

[0072] The top beam 114 includes two third cross beams 1141, two fourth cross beams 1142 and three fifth cross beams 1143. The two third cross beams 1141 extend along the length direction of the box body 11 and are spaced opposite to each other along the width direction of the box body 11. The two fourth cross beams 1142 extend along the width direction of the box body 11 and are spaced opposite to each other along the length direction of the box body 11. One third cross beam 1141, one fourth cross beam 1142, another third cross beam 1141 and another fourth cross beam 1142 are connected end to end in sequence. In the height direction of the box body 11, the third cross beam 1141 of the top beam 114 is arranged opposite to the first cross beam 1131 of the bottom beam 113, and the fourth cross beam 1142 of the top beam 114 is arranged opposite to the second cross beam 1132 of the bottom beam 113.

[0073] The three fifth beams 1143 are located between the two fourth beams 1142. The fifth beams 1143 are spaced apart from the fourth beams 1142. The three fifth beams 1143 extend along the width direction of the box body 11 and are spaced apart along the length direction of the box body 11. Both ends of the fifth beam 1143 are connected to the two third beams 1141, respectively.

[0074] There are four vertical beams 115. The four vertical beams 115 are connected between the top beam 114 and the bottom beam 113. The four vertical beams 115 extend along the height direction of the box body 11. One end of each vertical beam 115 is connected to the intersection of the first cross beam 1131 and the second cross beam 1132, and the other end is connected to the intersection of the third cross beam 1141 and the fourth cross beam 1142.

[0075] The frame 111 includes a first side portion 117 and a second side portion 118. The first side portion 117 and the second side portion 118 are opposite to each other in the width direction of the frame 111. The first side portion 117 is surrounded by two vertical beams 115, a first cross beam 1131 and a third cross beam 1141. The second side portion 118 is surrounded by another two vertical beams 115, another first cross beam 1131 and another third cross beam 1141.

[0076] The door beam (not shown) is located at the first side portion 117. There are three door beams. The three door beams can be the first door beam 1161, the second door beam 1162 and the third door beam 1163. The first door beam 1161, the second door beam 1162 and the third door beam 1163 all extend along the height direction of the box body 11. The first door beam 1161, the second door beam 1162 and the third door beam 1163 are located between the two vertical beams 115. Along the length direction of the box body 11, one vertical beam 115, the first door beam 1161, the second door beam 1162, the third door beam 1163, and the other vertical beam 115 are arranged in sequence. One end of each door beam (the first door beam 1161, the second door beam 1162 or the third door beam 1163) is connected to the first cross beam 1131, and the other end is connected to the third cross beam 1141.

[0077] Please refer to Figure 1 The box plate 112 includes a first side plate 1121, a second side plate 1122, a third side plate 1123, a door plate 1124, a top plate 1125, a bottom plate 1126, a first partition plate 1111 and a second partition plate 1112. The first side plate 1121, the second side plate 1122, the third side plate 1123, the door plate 1124, the top plate 1125, the bottom plate 1126, the first partition plate 1111 and the second partition plate 1112 are all connected to the frame 111.

[0078] Please refer to Figure 1 and Figure 3 The periphery of the second side plate 1122 is fixedly connected to two vertical beams 115 , a fourth cross beam 1142 and a second cross beam 1132 .

[0079] Please refer to Figure 3 and Figure 4 , Figure 4 yes Figure 1 The schematic diagram of a part of the structure of the energy storage container 10 is shown. The periphery of the second partition 1112 can be connected to a fifth cross beam 1143 and a third door beam 1163. The material of the second partition 1112 can be a fireproof board.

[0080] The second partition plate 1112 and the second side plate 1122 are spaced apart from each other in the length direction of the box body 11. Between the second partition plate 1112 and the second side plate 1122 is the power distribution compartment 103. The material of the first partition plate 1111 can be a fireproof plate, for example, a steel plate.

[0081] The periphery of the first partition 1111 may be connected to a fifth cross beam 1143 and the first door beam 1161 respectively. The first partition 1111 may be spaced apart from the second partition 1112 in the length direction of the box body 11, and the first partition 1111 is located on a side of the second partition 1112 away from the second side plate 1122. The battery compartment 102 is between the first partition 1111 and the second partition 1112.

[0082] Please refer to Figure 3 and Figure 4 The periphery of the first side plate 1121 is fixedly connected to two vertical beams 115, a fourth cross beam 1142 and a second cross beam 1132. The first side plate 1121 can be spaced apart from the first partition 1111 in the length direction of the box body 11, and the first side plate 1121 is located on a side of the first partition 1111 away from the second partition 1112. The temperature control chamber 101 is between the first side plate 1121 and the first partition 1111.

[0083] Please refer to Figure 1 and Figure 4 , the first side plate 1121 is provided with a first air inlet 1127. The first air inlet 1127 penetrates the first side plate 1121 along the thickness direction of the first side plate 1121. The first air inlet 1127 is located in the bottom area of ​​the first side plate 1121. Along the height direction of the first side plate 1121, the width of the first air inlet 1127 is greater than half of the height of the first side plate 1121, and the width of the first air inlet 1127 is approximately 3 / 4 of the height of the first side plate 1121. The first air inlet 1127 connects the temperature control chamber 101 with the outside of the box body 11. Exemplarily, the first air inlet 1127 may include a plurality of first ventilation holes 1128 arranged in an array. Each first ventilation hole 1128 penetrates the first side plate 1121 along the thickness direction of the first side plate 1121. Two adjacent first ventilation holes 1128 are arranged at intervals. Exemplarily, the position where the first air inlet 1127 is provided on the first side plate 1121 may be a mesh plate provided with a plurality of first ventilation holes 1128. Alternatively, the first air inlet 1127 may also be a single through hole with a larger aperture to reduce the obstruction to the airflow. In addition, a reminder sign may be provided on the first side plate 1121 to remind the operator to pay attention to the position of the first air inlet 1127 to prevent the operator from accidentally touching the heat dissipation unit 13 in the temperature control chamber 101 from the position of the first air inlet 1127.

[0084] In this embodiment, since the aperture of the first ventilation hole 1128 is relatively small, larger objects can be blocked outside the box body 11 of the energy storage container 10, thereby preventing foreign objects from passing through the first air inlet 1127 and impacting the heat dissipation unit 13 inside the box body 11, thereby ensuring that the heat dissipation unit 13 is minimized from impact by foreign objects.

[0085] The periphery of the top plate 1125 is fixedly connected to the two third cross beams 1141 and the two fourth cross beams 1142 of the top beam 114. The middle area of ​​the top plate 1125 can be connected to the three fifth cross beams 1143. The top plate 1125 covers the openings at the top of the temperature control compartment 101, the battery compartment 102 and the power distribution compartment 103.

[0086] The top plate 1125 is provided with an air outlet 1129. The air outlet 1129 penetrates the top plate 1125 along the thickness direction of the top plate 1125. The orthographic projection of the air outlet 1129 along the height direction of the box body 11 is located between the first side plate 1121 and the first partition plate 1111, so that the air outlet 1129 communicates with the temperature control chamber 101 and the outside of the box body 11.

[0087] In this embodiment, the three fifth cross beams 1143 can support the top plate 1125 together with the first cross beam 1131 and the second cross beam 1132 to prevent cracks and collapse on the surface of the top plate 1125, thereby making the top plate 1125 more stable.

[0088] The bottom plate 1126 and the top plate 1125 are arranged opposite to each other along the height direction of the box body 11. The periphery of the bottom plate 1126 is fixedly connected to the two first cross beams 1131 and the two second cross beams 1132 of the bottom beam 113. The bottom plate 1126 covers the openings at the bottom of the temperature control compartment 101, the battery compartment 102 and the power distribution compartment 103.

[0089] Please refer to Figure 5 and Figure 6 , Figure 5 yes Figure 1 The schematic structural diagram of the energy storage container 10 from another angle is shown. Figure 6 yes Figure 1 The schematic diagram of the partial structure of the energy storage container 10 in a top view is shown. The third side plate 1123 is located at the second side portion 118 of the frame 111. The periphery of the third side plate 1123 is connected to a third cross beam 1141 of the top beam 114, a first cross beam 1131 of the bottom beam 113, and two vertical beams 115. The third side plate 1123 can cover the openings of the temperature control compartment 101, the battery compartment 102, and the power distribution compartment 103 in the width direction of the box.

[0090] The third side plate 1123 may be provided with a third air inlet 1130. The third air inlet 1130 penetrates the third side plate 1123 along the thickness direction of the third side plate 1123. In the height direction of the third side plate 1123, the opening width of the third air inlet 1130 is greater than half of the height of the third side plate 1123. Exemplarily, the opening width of the third air inlet 1130 may be approximately 3 / 4 of the height of the third side plate 1123. The area of ​​the third air inlet 1130 is smaller than the area of ​​the first air inlet 1127. The orthographic projection of the third air inlet 1130 along the width direction of the cabinet 11 is located between the first side plate 1121 and the first partition plate 1111. The third air inlet 1130 can connect the temperature control compartment 101 with the outside of the cabinet 11.

[0091] Exemplarily, the third side plate 1123 may include a third sub-plate 1191, a first sub-plate 1192, a second sub-plate 1193 and a fourth sub-plate 1194. Along the length direction of the box body 11, the third sub-plate 1191, the first sub-plate 1192, the second sub-plate 1193 and the fourth sub-plate 1194 are arranged in sequence.

[0092] The periphery of the third sub-plate 1191 is respectively connected to a vertical beam 115, a first cross beam 1131 and a third cross beam 1141. The third air inlet 1130 mentioned above can be provided on the third sub-plate 1191. The third sub-plate 1191 can cover the opening of the temperature control chamber 101 in the width direction of the box body 11.

[0093] The first sub-plate 1192 and the second sub-plate 1193 can be rotatably connected between the top plate 1125 and the bottom plate 1126. The first sub-plate 1192 can include a closed state and an open state. When the first sub-plate 1192 is in the closed state, the first sub-plate 1192 can cover the partial opening of the battery compartment 102 at the second side portion 118. When the first sub-plate 1192 is in the open state, the first sub-plate 1192 is open relative to the battery compartment 102, thereby exposing the battery module 12 in the battery compartment 102.

[0094] The second sub-plate 1193 may include a closed state and an open state. When the second sub-plate 1193 is in the closed state, the second sub-plate 1193 may cover the partial opening of the battery compartment 102 at the second side portion 118. When the second sub-plate 1193 is in the open state, the second sub-plate 1193 is open relative to the battery compartment 102, thereby exposing the battery module 12 inside the battery compartment 102.

[0095] In this embodiment, the first sub-plate 1192 and the second sub-plate 1193 in the third side plate 1123 can be opened, so that the operator can adjust or replace the battery module 12 inside the box body 11 .

[0096] The periphery of the fourth sub-plate 1194 is connected to another vertical beam 115, the first horizontal beam 1131 and the third horizontal beam 1141. The fourth sub-plate 1194 can cover the opening of the power distribution compartment 103 at the second side portion 118.

[0097] Please refer to Figure 1 and Figure 3 , the door panel 1124 is connected to the first side portion 117 of the frame 111. The door panel 1124 and the third side panel 1123 are arranged opposite to each other along the width direction of the box body 11. The door panel 1124 may include a plurality of sub-door panels. The plurality of sub-door panels are respectively a first door panel 1195, a second door panel 1196 and a third door panel 1197. Along the length direction of the box body 11, the first door panel 1195, the second door panel 1196 and the third door panel 1197 are arranged in sequence.

[0098] The first door panel 1195 can be disposed opposite to the third sub-panel 1191 of the third side panel 1123 in the width direction of the box body 11. The first door panel 1195 can be rotatably connected to a vertical beam 115 of the first side portion 117. The first door panel 1195 covers the opening of the temperature control chamber 101 at the first side portion 117.

[0099] The first door panel 1195 is provided with a second air inlet 1198. The second air inlet 1198 penetrates the first door panel 1195 along the thickness direction of the first door panel 1195. The second air inlet 1198 is located on the side of the first door panel 1195 facing the bottom plate 1126. That is, the second air inlet 1198 is provided at the bottom of the first door panel 1195. In the height direction of the first door panel 1195, the opening width of the second air inlet 1198 is greater than half of the height of the first door panel 1195. Exemplarily, the opening width of the second air inlet 1198 may be approximately 3 / 4 of the height of the first door panel 1195. The area of ​​the second air inlet 1198 is smaller than the area of ​​the first air inlet 1127. The second air inlet 1198 may be arranged opposite to the third air inlet 1130 of the third side panel 1123.

[0100] The first door panel 1195 includes a closed state and an open state. When the first door panel 1195 is in the closed state, the first door panel 1195 can cover the opening of the temperature control chamber 101 at the first side portion 117. When the first door panel 1195 is in the open state, the first door panel 1195 is open relative to the first side portion 117, thereby exposing the heat dissipation unit 13 inside the box body 11.

[0101] The number of the second door panels 1196 can be two. One second door panel 1196 can be arranged opposite to the first sub-panel 1192 of the third side panel 1123 in the width direction of the box body 11. And it can be rotatably connected to the first door beam 1161. Another second door panel 1196 can be arranged opposite to the second sub-panel 1193 in the width direction of the box body 11, and can be rotatably connected to the second door beam 1162. The second door panel 1196 includes a closed state and an open state. When the second door panel 1196 is in the closed state, the second door panel 1196 covers the opening of the battery compartment 102 at the first side portion 117. When the second door panel 1196 is in the open state, the second door panel 1196 can be open relative to the battery compartment 102, thereby exposing the battery module 12 inside the battery compartment 102.

[0102] The third door panel 1197 can be arranged opposite to the fourth sub-panel 1194 of the third side panel 1123 in the width direction of the box body 11. The third door panel 1197 can be rotatably connected to the third door beam 1163. The third door panel 1197 includes a closed state and an open state. When the third door panel 1197 is in the closed state, the third door panel 1197 can cover the opening of the power distribution compartment 103 at the first side portion 117. When the third door panel 1197 is in the open state, the third door panel 1197 is open relative to the power distribution compartment 103, thereby exposing the power distribution unit 14 inside the power distribution compartment 103.

[0103] Please refer to Figure 4 , the battery module 12 is installed in the battery compartment 102 of the box body 11. The battery module 12 includes a battery rack 121 and a plurality of battery packs 122. The battery rack 121 is installed in the battery compartment 102. The battery rack 121 is provided with multiple layers of shelves. Each layer of shelf can be used to place a battery pack 122. Exemplarily, the battery rack 121 can have nine layers of frames 111. The width of the battery rack 121 can be between 1.7m and 2.2m (including the endpoint values ​​1.7m and 2.2m). The width direction of the battery rack 121 is the same as the width direction of the box body 11.

[0104] The length of the battery pack 122 may be between 1.7m and 2.2m (including the endpoints 1.7m and 2.2m), and the thickness of the battery pack 122 may be 275mm. The battery cells in the battery pack 122 may be blade cells. The battery pack 122 may have a thermal and electrical isolation function, that is, the liquid cooling and heat dissipation components in the battery pack 122 are isolated from the electrical connection components.

[0105] Multiple battery packs 122 are stacked in the thickness direction, and multiple battery packs 122 can form two battery columns. The battery pack 122 is inserted into the battery rack 121 along its length direction, and the length direction of the battery pack 122 extends along the width direction of the battery rack 121. One battery column can be located between the first door beam 1161 and the second door beam 1162, and the other battery column can be located between the second door beam 1162 and the third door beam 1163. Two battery packs 122 in the same row can be installed on the same shelf plate of the battery rack 121. That is, each shelf plate can be provided with two battery packs 122. Multiple battery packs 122 can be arranged in two columns and nine rows.

[0106] The bottom battery pack 122 is spaced apart from the bottom plate 1126. The spacing between the bottom battery pack 122 and the bottom plate 1126 is between 30 mm and 100 mm (including endpoint values ​​of 30 mm and 100 mm). The spacing between the bottom battery pack 122 and the bottom plate 1126 can provide an installation position for the wiring described below. The top battery pack 122 is spaced apart from the top plate 1125. The distance between the top battery pack 122 and the top plate 1125 can be between 20 mm and 100 mm (including endpoint values ​​of 20 mm and 100 mm). The distance between the top battery pack 122 and the top plate 1125 can be used to install a temperature sensor or a carbon monoxide sensor, etc., to monitor the internal environment of the battery compartment 102.

[0107] Please refer to Figure 4 and Figure 7 , Figure 7 yes Figure 4 The schematic diagram of the structure of the first embodiment of the heat dissipation unit 13 at one angle is shown. The heat dissipation unit 13 is located in the temperature control chamber 101 of the box body 11. The heat dissipation unit 13 includes an equipment rack 131, a liquid cooling component 132, a fan 133, a heat exchanger 134 and a pipeline (not shown). The equipment rack 131 is installed in the temperature control chamber 101. The liquid cooling component 132, the fan 133 and the heat exchanger 134 are all installed on the equipment rack 131.

[0108] The equipment rack 131 is provided with three mounting plates 1311. The three mounting plates 1311 are sequentially spaced apart along the height direction of the equipment rack 131.

[0109] The liquid cooling assembly 132 is mounted on the mounting plate 1311 at the bottom of the equipment rack 131. One end of the pipeline is connected to the liquid cooling assembly 132, and the other end of the pipeline extends from the temperature control compartment 101 to the battery compartment 102 of the box body 11 and is connected to the battery pack 122. The liquid cooling assembly 132 can drive the cooling medium to circulate in the pipeline, so that the cooling medium takes away the heat of the battery pack 122 during the circulation, so that the temperature of the battery pack 122 is kept within a safe range.

[0110] The heat exchanger 134 is mounted on the mounting plate 1311 in the middle of the equipment rack 131. The heat exchanger 134 is located above the liquid cooling assembly 132. The heat exchanger 134 includes a first heat exchange plate 1341 and a second heat exchange plate 1342. The first heat exchange plate 1341 and the second heat exchange plate 1342 both have a heat exchange cavity. The heat exchange cavity of the first heat exchange plate 1341 is connected to the heat exchange cavity of the second heat exchange plate 1342. The heat exchange cavity can be connected to the liquid cooling pipe of the battery pack 122 through a pipe.

[0111] In this embodiment, the liquid cooling assembly 132 can transfer the cooling medium from the pipeline to the battery pack 122. After the cooling medium absorbs the heat in the battery pack 122, the cooling medium can flow from the battery pack 122 to the heat exchange cavity of the heat exchanger 134. The cooling medium in the heat exchange cavity can exchange heat with the outside air through the surface of the heat exchanger 134, thereby cooling the cooling medium.

[0112] The fan 133 is mounted on the mounting plate 1311 at the top of the equipment rack 131, and the fan 133 is located above the heat exchanger 134. The air outlet side of the fan 133 faces the air outlet 1129 of the top plate 1125. The air intake side of the fan 133 faces the heat exchanger 134. The fan 133 is used to make the air in the box 11 flow outward, and the air passes through the heat exchanger 134 during the circulation process, thereby taking away the heat on the surface of the heat exchanger 134. Exemplarily, the fan 133 may include three fans 1331. The three fans 1331 are arranged in sequence along the width direction of the box 11. The air outlet 1129 of the fan 1331 is away from the heat exchanger 134, and the air inlet of the fan 1331 faces the heat exchanger 134.

[0113] In the embodiment of the present application, the heat exchanger 134 can be arranged in a variety of ways. Figure 7 and Figure 8 , Figure 8 yes Figure 7 Another structural schematic diagram of the heat dissipation unit 13 is shown.

[0114] In a first possible embodiment, the first heat exchange plate 1341 and the second heat exchange plate 1342 may be rectangular. The first heat exchange plate 1341 and the second heat exchange plate 1342 may be located on the side of the fan 133 facing the bottom plate 1126. The first heat exchange plate 1341 and the second heat exchange plate 1342 are spaced apart from each other. The first heat exchange plate 1341 is located between the second heat exchange plate 1342 and the first side plate 1121. The second heat exchange plate 1342 may be arranged parallel to the first side plate 1121. The bottom of the second heat exchange plate 1342 facing away from the fan 1331 may be connected to the mounting plate 1311 in the middle of the equipment rack 131.

[0115] The first heat exchange plate 1341 is tilted relative to the second heat exchange plate 1342. In the direction from the top to the bottom of the heat dissipation unit 13, the first heat exchange plate 1341 gradually approaches the second heat exchange plate 1342. The bottom of the first heat exchange plate 1341 away from the fan 1331 can be connected to the mounting plate of the equipment rack 131.

[0116] In this embodiment, when the fan 133 is working, it can suck air into the box body 11 from the first air inlet 1127 of the first side panel 1121, the second air inlet 1198 of the first door panel 1195 and the third air inlet 1130 of the third side panel 1123, and make the air flow pass through the first heat exchange plate 1341 and the second heat exchange plate 1342, and then the air passes through the fan 133 and the air outlet 1129 of the top plate 1125, and circulates to the outside of the box body 11, thereby taking the heat out of the box body 11.

[0117] In addition, the first air inlet 1127, the second air inlet 1198 and the third air inlet 1130 of the box body 11 can inhale air at the same time to form an airflow, and the air flow blowing to the heat exchanger 134 is relatively large, so that the heat of the heat exchanger 134 can be transferred to the air more quickly, thereby improving the heat dissipation speed of the heat exchanger 134 to the cooling medium.

[0118] Furthermore, the first side plate 1121, the third side plate 1123 and the door plate 1124 of the box body 11 are all provided with air inlets. In actual use, even if one of the air inlets of the energy storage container 10 is blocked, the box body 11 still has another air inlet for air intake. The air inlet of the box body 11 will not be completely closed, thereby ensuring that the heat exchanger 134 inside the box body 11 can dissipate heat in time through air cooling. Avoid the heat exchanger 134 being unable to dissipate the temperature of the cooling medium, resulting in a large amount of heat accumulation in the battery module 12, which cannot work normally or explodes.

[0119] In an embodiment of the present application, the first air inlet 1127, the second air inlet 1198 and the third air inlet 1130 are all located at the bottom of the box body 11, and the air outlet 1129 is located on the top plate 1125 of the box body 11, so that the air can flow from bottom to top, which conforms to the chimney effect of air flow, thereby increasing the air flow rate.

[0120] For a second possible embodiment, see Fig. 9 and Fig.10 , Fig. 9 yes Figure 2 The schematic diagram of the structure of the second embodiment of the heat dissipation unit 13 is shown at an angle. Fig.10 yes Figure 7 Another structural diagram of the heat dissipation unit 13 is shown in FIG. Different from the heat exchanger 134 of the first possible embodiment, the widths of the first heat exchange plate 1341 and the second heat exchange plate 1342 gradually decrease from the top to the bottom of the heat dissipation unit 13. The planar shape of the first heat exchange plate 1341 and the second heat exchange plate 1342 can be trapezoidal.

[0121] In this embodiment, compared with the heat exchanger 134 of the first embodiment, the volumes of the first heat exchange plate 1341 and the second heat exchange plate 1342 are reduced, so that the heat dissipation unit 13 has more space for gas circulation, thereby increasing the gas circulation amount, thereby increasing the gas circulation amount passing through the first heat exchange plate 1341 and the second heat exchange plate 1342. During the gas flow process, the heat of the first heat exchange plate 1341 and the second heat exchange plate 1342 can be taken away, thereby improving the heat dissipation efficiency of the first heat exchange plate 1341 and the second heat exchange plate 1342.

[0122] For a third possible embodiment, see Fig.11 and Fig.12 , Fig.11 yes Figure 2 The schematic diagram of the structure of the third embodiment of the heat dissipation unit 13 is shown at an angle. Fig.12 yes Fig. 9 Another structural diagram of the heat dissipation unit 13 is shown. Different from the heat exchanger 134 in the first possible embodiment, the second heat exchange plate 1342 is tilted relative to the first side plate 1121. That is, the second heat exchange plate 1342 is tilted relative to the height direction of the energy storage container 10. In the direction from the top of the heat dissipation unit 13 to the bottom, the second heat exchange plate 1342 gradually approaches the first side plate 1121.

[0123] In this embodiment, when the fan 133 is working, air can be sucked into the box body 11 from the first air inlet 1127 of the first side plate 1121, the second air inlet 1198 of the first door plate 1195, and the third air inlet 1130 of the third side plate 1123. The air can pass through the first heat exchange plate 1341 and the second heat exchange plate 1342, thereby taking away the heat of the cooling medium, and then flow to the fan 133.

[0124] In addition, the first heat exchange plate 1341 is tilted to form a gas flow space between the first heat exchange plate 1341 and the first side plate 1121, and air can enter the space between the first heat exchange plate 1341 and the first side plate 1121 from the main vent of the first side plate 1121, and then pass through the first heat exchange plate 1341. Since the distance between the first heat exchange plate 1341 and the first side plate 1121 is large, the first heat exchange plate 1341 will not directly block the main vent on the first side plate 1121, so that air can smoothly pass through the main vent, thereby increasing the flow of gas, thereby increasing the amount of gas flowing through the first heat exchange plate 1341 and the second heat exchange plate 1342, and improving the heat dissipation efficiency of the first heat exchange plate 1341 and the second heat exchange plate 1342.

[0125] For a fourth possible embodiment, see Fig.13 , Fig.13 yes Figure 2Schematic diagram of the structure of the fourth embodiment of the heat dissipation unit 13 shown. Different from the heat exchanger 134 of the first possible embodiment, the heat exchanger 134 of this embodiment further includes a third heat exchange plate 1343. The first heat exchange plate 1341 and the second heat exchange plate 1342 are arranged opposite to each other in the width direction of the heat dissipation unit 13. The third heat exchange plate 1343 is connected between the first heat exchange plate 1341 and the second heat exchange plate 1342, and is located on the side of the first heat exchange plate 1341 and the second heat exchange plate 1342 facing the first side plate 1121.

[0126] In this embodiment, the airflow passing through the second air inlet 1198 of the first door plate 1195 can be blown directly to the first heat exchange plate 1341 to remove the heat of the first heat exchange plate 1341. The airflow passing through the third air inlet 1130 of the third side plate 1123 can be blown directly to the second heat exchange plate 1342 to remove the heat of the second heat exchange plate 1342. The airflow passing through the first air inlet 1127 of the first side plate 1121 can be blown directly to the third heat exchange plate 1343 to remove the heat of the third heat exchange plate 1343.

[0127] Please refer to Figure 4 The power distribution unit 14 is installed in the power distribution compartment 103. The power distribution unit 14 is located between the second partition plate 1112 and the second side plate 1122. The power distribution unit 14 includes a fire protection component 141, a cluster control box 142 and a wiring 143. Along the height direction of the box body 11, the wiring 143, the cluster control box 142 and the fire protection component 141 are arranged in sequence from bottom to top.

[0128] One end of the wiring 143 is connected to the cluster control box 142. The wiring 143 can pass through the second partition 1112 and extend in the gap between the battery pack 122 at the bottom of the battery rack 121 and the bottom plate 1126. The other end of the wiring 143 is connected to the battery module 12. The wiring 143 can conduct the cluster control box 142 and the battery module 12.

[0129] The firefighting assembly 141 is located between the cluster control box 142 and the top plate 1125. The firefighting assembly 141 may include a variety of sensors and other equipment. Exemplarily, the firefighting assembly 141 may include a smoke sensor, a temperature sensor, a humidity sensor and / or an emergency light, etc. These devices can monitor the environmental changes in the energy storage container 10 in real time, and once an abnormal situation such as smoke, high temperature or fire source is found, the alarm and fire extinguishing procedures will be immediately initiated.

[0130] In some other embodiments, the power distribution unit 14 may also be provided with a power conversion system (PCS), wherein the power conversion system (not shown) may be provided between the cluster control box 142 and the fire protection component 141 .

[0131] In this embodiment, the PCS can control the charging and discharging process of the battery module 12 and perform AC to DC conversion. In the absence of a power grid, the PCS can directly supply power to the AC load.

[0132] In this embodiment, the power distribution set 14 is isolated from the battery module 12 by the second partition 1112, thereby reducing the electromagnetic interference of the battery module 12 on the power distribution set 14. At the same time, the temperature effect of the battery module 12 on the power distribution set 14 can also be reduced, and the heat generated by the battery module 12 during operation can be prevented from increasing the temperature around the power distribution set 14, ensuring that the power distribution set 14 can operate within a safe temperature range, and improving the reliability and stability of the power distribution set 14.

[0133] In addition, the power distribution group 14 is arranged close to the second side plate 1122, and the power distribution group 14 can directly lead out the wires from one side of the second side plate 1122, so that the operator can electrically connect the power distribution group 14 to the external power equipment. Avoid the battery module 12 blocking the outlet position of the power distribution group 14, and ensure that the power distribution group 14 has a larger area for leading out the wires, so as to facilitate the flexible connection between the power distribution group 14 and the external power equipment. Since the power distribution group 14 is close to the box plate 112 of the energy storage container 10, the length of the wires leading out of the power distribution group 14 does not need to be configured too long. The wires can connect the power distribution group 14 to the external equipment, so the length of the wires is shorter, thereby reducing the loss of the wires in the transmission of electricity, making the utilization rate of electricity higher.

[0134] Furthermore, the present application separates the power distribution unit 14 from the battery module 12, so that the battery module 12 has an independent battery compartment 102. The battery packs 122 can be regularly arranged in the battery compartment 102 without being restricted by the equipment of the power distribution unit 14, thereby improving the space utilization of the battery compartment 102.

[0135] Since the battery module 12 and the heat dissipation unit 13 in the energy storage container 10 are separated, the heat dissipation unit 13 and the battery module 12 are respectively located in different compartments, so that the heat dissipation process of the heat exchanger 134 of the heat dissipation unit 13 can be carried out separately from the heat dissipation process of the battery module 12. The air cooling process of the heat exchanger 134 can be completed in the temperature control compartment 101. The liquid cooling process of the battery module 12 can be completed in the battery compartment 102. Avoid the air cooling process affecting the temperature of the battery module 12, resulting in different temperatures of the battery packs 122 at different positions, causing inaccurate temperature measurement by the sensor. The battery module 12 can ensure that the temperature of the battery packs 122 at different positions is more balanced by liquid cooling, making the temperature of the battery module 12 more controllable, thereby improving the temperature control efficiency.

[0136] It should be noted that the energy storage container 10 in the diagram of the present application is only for illustration, and the structure of the energy storage container 10 may also be mirror-symmetrical to the energy storage container 10 in the diagram.

[0137] During the transportation of the energy storage container 10 provided in the embodiment of the present application, two energy storage containers 10 can be connected along the length direction to form a standard 20-foot container.

[0138] It is known that the transportation of energy storage containers is to transport the energy storage containers from the production side (manufacturer) to the user side (consumer). For the convenience of transportation, the batteries and control cabinets are placed in standard containers. Standard containers must meet the international standards established by the International Organization for Standardization ISO, which specifies the dimensions of standard containers, including the length, width and height of standard containers, and limits the rated weight of standard containers.

[0139] The present application connects two energy storage containers 10 to form a whole. Among them, the first side plate 1121 of one energy storage container 10 is connected to the second side plate 1122 of another energy storage container 10. Alternatively, the first side plate 1121 of one energy storage container 10 is connected to the first side plate 1121 of another energy storage container 10. Alternatively, the second side plate 1122 of one energy storage container 10 is connected to the second side plate 1122 of another energy storage container 10.

[0140] The size of the overall outer contour formed by connecting the two energy storage containers 10 is the same as the size of the international standard 20-foot container. Therefore, during transportation, it is convenient to stack and arrange the whole composed of the two energy storage containers 10, so that the energy storage containers 10 can be transported using the transportation method of 20-foot containers.

[0141] Furthermore, the transportation cost of two energy storage containers 10 may be the same as that of one 20-foot container, so the transportation cost of a single energy storage container 10 may be half of that of a standard 20-foot container, thereby reducing the transportation cost of a single energy storage container 10. Furthermore, since the number of battery packs 122 disposed inside the energy storage container 10 is less than that of a 20-foot container, the embodiment of the present application meets the use requirements of small power stations and other scenarios by reducing the freight and power granularity of the energy storage container 10.

[0142] See also Fig.14 , Fig.14 It is composed of two Figure 1 The energy storage container 10 shown is a schematic diagram of a structure of an energy storage system 100. In actual use, the energy storage containers 10 provided in the embodiment of the present application can be combined to form an energy storage system 100.

[0143] In a possible embodiment, two energy storage containers 10 may be placed side by side in a "back-to-back" manner. That is, the two energy storage containers 10 are arranged side by side in the width direction, and the third side panels 1123 of the two energy storage containers 10 may be arranged opposite to each other. The distance D1 between the two energy storage containers 10 may be less than or equal to 0.6 m.

[0144] In this embodiment, since the energy storage container 10 can take in air from the first air inlet 1127 of the first side panel 1121 and the second air inlet 1198 of the first door panel 1195, the power distribution unit 14 can take in air from the lead-out wires of the second side panel 1122. Therefore, the blocking of the third side panel 1123 will not affect the normal operation of the heat dissipation unit 13 and the power distribution unit 14. The third side panels 1123 of the two energy storage containers 10 can be as close to each other as possible, thereby reducing the distance between the two energy storage containers 10, thereby reducing the floor space of the energy storage system 100, improving the utilization rate of the site of the energy storage system 100, and improving the granularity of the power consumption of the energy storage system 100 per unit floor space.

[0145] In addition, the first side portions 117 of the two energy storage containers 10 with the door panels 1124 are facing away from each other, so that the two energy storage containers 10 are arranged side by side. The heat dissipation assembly, the battery module 12 and the power distribution unit 14 can be installed in the energy storage container 10 from the first side portion 117 of the energy storage container 10 to achieve one-way deployment and one-sided door opening of the energy storage container 10. When the internal components of the energy storage container 10 need to be repaired or replaced, the operator can operate from the first side portion 117, and the operating space is not limited by the site of the container.

[0146] For another possible embodiment, see Fig.15 , Fig.15 It is composed of two Figure 1 Another structural schematic diagram of an energy storage system 100 composed of energy storage containers 10 is shown. Two energy storage containers 10 can be placed side by side in a "shoulder-to-shoulder" manner. That is, the two energy storage containers 10 are arranged side by side along the length direction, and the first side plate 1121 of one energy storage container 10 and the second side plate 1122 of the other energy storage container 10 are spaced and opposite to each other. The distance D2 between the two energy storage containers 10 can be less than 1.5m.

[0147] In this embodiment, the energy storage system 100 is suitable for an installation site with a small width and a large length. Two energy storage containers 10 can be arranged side by side along the length direction of the installation site.

[0148] Since the energy storage container 10 has two auxiliary air inlets (the second air inlet 1198 and the third air inlet 1130), the first air inlet 1127 located at the first side portion 117 is slightly blocked and will not affect the air intake of the energy storage box 11. The auxiliary air inlet and the first air inlet 1127 can cooperate with each other to intake air, so that the air volume can meet the working requirements of the heat exchanger 134, ensuring that the cooling medium can be cooled in the heat exchanger 134, so as to prepare for the next cycle cooling of the battery pack 122.

[0149] In some other embodiments, see Fig.16 , Fig.16 It consists of four Figure 1 A structural schematic diagram of an energy storage system 100 composed of energy storage containers 10 shown. The energy storage system 100 may also include four energy storage containers 10. The four energy storage containers 10 may be arranged in a rectangular array. The arrangement of the four energy storage containers 10 may combine the two embodiments of the energy storage system 100 described above. Along the length direction of the energy storage container 10, the first side plate 1121 of one energy storage container 10 is spaced apart from the second side plate 1122 of another energy storage container 10. Along the width direction of the energy storage container 10, the third side plates 1123 of the two energy storage containers 10 are spaced apart from each other.

[0150] Alternatively, in some other embodiments, the energy storage system 100 may further include any number of energy storage containers 10. Multiple energy storage containers 10 may be arranged in any one or any of the arrangements described above. Alternatively, the energy storage system may further include two mirror-symmetrical energy storage containers, which may be arranged side by side in the "shoulder-to-shoulder" manner described above, or the two energy storage containers may be arranged side by side in the "back-to-back" manner described above.

[0151] The above are exemplary embodiments of the present application. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made thereto without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. An energy storage container, characterized in that: The energy storage container comprises: A box body, comprising a first side panel, a second side panel and a top panel, wherein the first side panel and the second side panel are arranged opposite to each other, and the top panel is connected between the first side panel and the second side panel, and the box body is provided with a temperature control compartment, a battery compartment, a first air inlet and an air outlet, wherein the temperature control compartment and the battery compartment are both located inside the box body, and the temperature control compartment and the battery compartment are arranged in sequence along the direction from the first side panel to the second side panel, the first air inlet passes through the first side panel and is communicated with the temperature control compartment, and the air outlet passes through the top panel and is communicated with the temperature control compartment; A battery module, installed in the battery compartment; A heat dissipation unit includes a liquid cooling component, a pipeline and a fan. The liquid cooling component and the fan are both installed in the temperature control chamber. The liquid cooling component is connected to the battery module through the pipeline. The fan is located on the side of the liquid cooling component facing the top plate, and the air outlet side of the fan is opposite to the air outlet.

2. The energy storage container according to claim 1, characterized in that: The heat dissipation unit also includes a heat exchanger, which is located between the fan and the liquid cooling assembly. The heat exchanger is opposite to the first side plate and is spaced apart from each other. The heat exchanger is connected to the battery module.

3. The energy storage container according to claim 1 or 2, characterized in that: The box body further includes a door panel and a third side panel, wherein the door panel and the third side panel are arranged opposite to each other, connected between the first side panel and the second side panel, and connected to the top panel; The box body is also provided with a second air inlet, which passes through the door panel and is communicated with the temperature control chamber.

4. The energy storage container according to claim 3, characterized in that: An opening area of ​​the first air inlet is larger than an opening area of ​​the second air inlet.

5. The energy storage container according to claim 3, characterized in that: The box body is also provided with a third air inlet, and the third air inlet passes through the third side plate and is connected to the temperature control chamber.

6. The energy storage container according to claim 3, characterized in that: The box body further includes a first partition, the first partition is located between the first side plate and the second side plate, the temperature control compartment is arranged between the first partition and the first side plate, the battery compartment is arranged between the first partition and the second side plate, the temperature control compartment has a compartment opening away from the third side plate, and the battery compartment has a compartment opening away from the third side plate; When the door panel is in a closed state, the door panel covers the opening of the temperature control compartment and the opening of the battery compartment.

7. The energy storage container according to claim 1 or 2, characterized in that: The box body is a rectangular parallelepiped structure, the length of the box body is half the length of a 20-foot container, the height of the box body is the height of a 20-foot container, and the width of the box body is the width of a 20-foot container.

8. The energy storage container according to claim 3, characterized in that: The box body is also provided with a power distribution compartment, which is located inside the box body and on a side of the battery compartment away from the temperature control compartment; The energy storage container also includes a power distribution unit, which is installed in the power distribution warehouse and is electrically connected to the battery module.

9. The energy storage container according to claim 8, characterized in that: The power distribution unit includes a wiring and a cluster control box. The wiring is located on a side of the cluster control box away from the top plate. The wiring electrically connects the cluster control box and the battery module.

10. The energy storage container according to claim 9, characterized in that: The distance between the battery module and the top plate ranges from 20 mm to 100 mm, and the distance between the battery module and the bottom plate of the box body ranges from 30 mm to 100 mm.

11. The energy storage container according to claim 10, characterized in that: One end of the wiring is connected to the battery module, part of the wiring is located in the gap between the battery module and the bottom plate of the box, and the other end of the wiring is connected to the cluster control box.

12. The energy storage container according to any one of claims 9 to 11, characterized in that: The door panel includes a first door panel, a second door panel and a third door panel, the first door panel, the second door panel and the third door panel are all located on the same side of the box body, and the first door panel, the second door panel and the third door panel are arranged in sequence along the direction from the first side panel to the second side panel, when the first door panel is in a closed state, the first door panel covers the opening of the temperature control compartment, when the second door panel is in a closed state, the second door panel covers the opening of the battery compartment, and when the third door panel is in a closed state, the third door panel covers the opening of the power distribution compartment.

13. The energy storage container according to claim 12, characterized in that: The third side panel also includes a first sub-panel. In the width direction of the box body, the first sub-panel is arranged opposite to the second door panel. When the first sub-panel is in an open state, the first sub-panel exposes the opening of the battery compartment toward the third side panel.

14. An energy storage system, characterized in that: The energy storage system comprises at least two energy storage containers according to any one of claims 1 to 13, and along the length direction of the energy storage containers, at least two of the energy storage containers are arranged side by side and at intervals.

15. The energy storage system according to claim 14, characterized in that: The distance between two adjacent energy storage containers is less than or equal to 1.5 m.

16. An energy storage system, characterized in that: The energy storage system comprises at least two energy storage containers according to any one of claims 1 to 13, and along the width direction of the energy storage containers, at least two of the energy storage containers are arranged side by side and at intervals.

17. The energy storage system according to claim 16, characterized in that: The distance between two adjacent energy storage containers is less than or equal to 0.6 m.

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