Energy storage system

Abstract

The utility model discloses an energy storage system, which comprises a box body, at least one battery compartment is arranged in the box body, a plurality of sub-compartments are arranged in the battery compartment, the plurality of sub-compartments in the battery compartment are communicated with one another, explosion-proof plates are arranged at the top of the box body corresponding to the positions of the battery compartments, and the explosion-proof plates are connected with the battery compartment. And the plurality of sub-cabins in one battery cabin share at least one explosion-proof plate. According to the utility model, the number of the explosion-proof plates is reduced, so that the exhaust ports are reduced, and the strength and the processing efficiency of the container are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the energy storage technology field especially relates to a kind of energy storage systems. BACKGROUND

[0002] Energy storage container is one of the more common energy storage systems, and the energy storage container mainly includes two parts of battery compartment and electrical compartment.Battery compartment includes battery pack, battery management system and the like;Electrical compartment includes energy storage converter, inverter, switchgear and other components, and in order to ensure that heat is discharged in time when energy storage container is in thermal runaway, each compartment in the container is provided with an explosion-proof plate for discharging heat, but this design reduces the strength of the container itself. SUMMARY

[0003] The current energy storage container adopts a design of one compartment corresponding to at least one explosion-proof plate, and the large number of explosion-proof plates and exhaust ports will reduce the strength of the container itself, and the processing is time-consuming and inefficient.In order to overcome these shortcomings and deficiencies, the purpose of the utility model is to provide an energy storage system, which reduces the number of explosion-proof plates and the number of exhaust ports, thereby improving the strength and processing efficiency of the container itself.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] An energy storage system includes a box body, at least one battery compartment is provided in the box body, a plurality of sub-compartments are provided in the battery compartment, the plurality of sub-compartments in one battery compartment are communicated, an explosion-proof plate is provided on the top of the box body corresponding to the position of each battery compartment, and the plurality of sub-compartments in one battery compartment share at least one explosion-proof plate.

[0006] In an embodiment, the box body includes a plurality of battery compartments;A plurality of partitions are provided in the box body, the partitions include a plurality of long partitions and at least one short partition;The plurality of long partitions are arranged along the length direction of the box body to divide the inside of the box body into a plurality of battery compartments, at least one battery compartment is divided into a plurality of sub-compartments by at least one short partition;The plurality of sub-compartments are arranged along the length direction of the box body.

[0007] In an embodiment, the long partition is fixedly connected to the inner wall of the box body at both ends along the height direction of the box body.

[0008] In an embodiment, the short partition includes two ends along the height direction of the box body, one end is fixedly connected to the inner wall of the box body, and a gap is provided between the other end and the inner wall of the box body, and the adjacent sub-compartments are communicated through the gap.

[0009] In an embodiment, the short partition comprises a top end and a bottom end along the height direction of the box, a gap is provided between the top end and the top of the box, and the bottom end is fixedly connected to the bottom of the box.

[0010] In an embodiment, at least one exhaust port is provided at the position corresponding to each battery compartment on the top of the box, the exhaust port is in communication with the corresponding battery compartment, one explosion-proof plate is installed at the exhaust port and seals the exhaust port.

[0011] In an embodiment, the explosion-proof plate comprises a frame and a weak plate, the weak plate is installed in the frame, and the frame and the box are fixed by fixing bolts, thereby being installed on the exhaust port.

[0012] In an embodiment, the sub-compartment is sequentially provided with a plurality of placement compartments along the height direction of the box, the placement compartments comprise a plurality of module compartments, a high-voltage box compartment and a pipeline harness compartment; along the height direction of the box, from the bottom to the top of the box, the pipeline harness compartment, the high-voltage box compartment and a plurality of the module compartments are sequentially arranged.

[0013] In an embodiment, a plurality of groups of stops are arranged in the sub-compartment, and the plurality of groups of stops divide the sub-compartment into a plurality of placement compartments.

[0014] In an embodiment, the internal pressure of the box is greater than the atmospheric pressure, and the difference between the internal pressure of the box and the atmospheric pressure is A, wherein 5pa≤A≤1000pa.

[0015] In an embodiment, 5pa≤A≤500pa, or 5pa≤A≤200pa, or 5pa≤A≤100pa, or 10pa≤A≤200pa, or 5pa≤A≤50pa, or 5pa≤A≤20pa.

[0016] The utility model has the advantages that: a plurality of sub-compartment are in communication in one battery compartment in the box, and the plurality of sub-compartment share one explosion-proof plate, when the temperature in any sub-compartment rises or abnormality occurs inside, the explosion-proof plate is blasted to release the internal temperature and air pressure, the number of explosion-proof plates is reduced, the number of exhaust ports is reduced, the overall strength of the box is improved, the processing efficiency is improved, and the processing cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a structural schematic diagram of the energy storage system of the embodiment of the present application;

[0019] Figure 2 is Figure 1 a structural schematic diagram of the internal structure of the battery box;

[0020] Figure 3 is Figure 1 a structural schematic diagram of the first door of the battery box after being opened;

[0021] Figure 4 is a structural schematic diagram of the explosion-proof plate.

[0022] In the drawings: 1, box body; 11, exhaust port; 2, battery compartment; 21, sub-compartment; 211, module compartment; 212, high-voltage box compartment; 213, pipeline wire harness compartment; 22, gap; 23, first door; 231, first exhaust valve; 3, electrical compartment; 31, second door; 311, second exhaust valve; 4, nitrogen generation compartment; 5, liquid cooling compartment; 61, long partition plate; 62, short partition plate; 7, explosion-proof plate; 71, frame body; 72, weak plate; 8, fixing bolt; 9, baffle. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the description of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] In the description of the present application, unless otherwise explicitly specified and limited, the terms "provided", "installed", "connected" and the like should be broadly understood, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] The terms "first", "second", "third" and the like are merely for distinguishing similar attributes, and do not indicate or imply relative importance or a particular order.

[0027] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to including the listed elements, other elements not explicitly listed can also be included.

[0028] The utility model provides a kind of energy storage system, as shown in Figures 1 to 4 The utility model provides a kind of energy storage system, as shown in

[0029] In the embodiment, the multiple sub-warehouses 21 in one battery compartment 2 inside the box body 1 are communicated, and the multiple sub-warehouses 21 in one battery compartment 2 share at least one explosion-proof plate 7. When the temperature in any one of the sub-warehouses 21 rises or an abnormality occurs inside, it can be blown through one explosion-proof plate 7 to release the internal temperature and air pressure, reducing the setting of the explosion-proof plate 7, and further reducing the setting of the exhaust port 11, improving the overall strength of the box body 1, and improving the processing efficiency and reducing the processing cost. For example, the two sub-warehouses 21 in the same battery compartment 2 are communicated and share one explosion-proof plate 7; or, three or four sub-warehouses 21 in the same battery compartment 2 can also be communicated and share one explosion-proof plate 7; or as shown in Figure 1 two sub-warehouses 21 are communicated and share two explosion-proof plates 7. This is not limited.

[0030] As an embodiment, as shown in Figure 2As shown, the box body 1 includes a plurality of battery compartments 2; the box body 1 is provided with a plurality of partitions, the partitions include a plurality of long partitions 61 and at least one short partition 62; the plurality of long partitions 61 are arranged along the length direction L of the box body 1 to separate the box body 1 into a plurality of battery compartments 2, at least one battery compartment 2 is separated into a plurality of sub-compartments 21 by at least one short partition 62, and the plurality of sub-compartments 21 are arranged along the length direction L of the box body 1. Specifically, the box body 1 is a cuboid structure, there are four long partitions 61, which are arranged along the length direction L of the box body 1 to separate the box body 1 into five compartments, including four battery compartments 2 arranged continuously, and the outermost one is divided into a liquid cooling compartment 5, an electrical compartment 3 and a nitrogen generating compartment 4; the liquid cooling compartment 5 is used to place a liquid cooling unit assembly to cool each compartment in the container, so as to ensure that each compartment is at a normal temperature and improve the working performance; the electrical compartment 3 is used to place power distribution equipment; the nitrogen generating compartment 4 is used to prepare nitrogen to inject into each battery compartment 2 and the electrical compartment 3, so as to reduce the oxygen concentration in the battery compartment 2 and the electrical compartment 3 and improve the fireproof performance of the container. Among them, as shown in Figure 1 As shown, the battery compartment 2 includes a first compartment door 23, the first compartment door 23 is used to seal the battery compartment 2, and the first compartment door 23 is provided with a first exhaust valve 231; the electrical compartment 3 includes a second compartment door 31, the second compartment door 31 is used to seal the electrical compartment 3, and the second compartment door 31 is provided with a second exhaust valve 311.

[0031] As an embodiment, as shown in Figure 2 The short partition 62 includes two ends along the height direction H of the box body 1, one end is fixedly connected with the inner wall of the box body 1, and the other end is provided with a gap 22 between the inner wall of the box body 1, and the adjacent sub-compartments 21 are communicated through the gap 22.

[0032] As an embodiment, as shown in Figure 1 and Figure 2 The short partition 62 includes a top end and a bottom end along the height direction H of the box body 1, the top end is provided with a gap 22 between the top of the box body 1, and the bottom end is fixedly connected with the bottom of the box body 1, so that the adjacent sub-compartments 21 of the same battery compartment 2 are communicated through the gap 22 located at the top of the box body 1. Among them, the short partition 62 and the top of the box body 1 leave a gap as a communication channel for the adjacent sub-compartments 21, which can not need to open other communication channels on the partition, and the structure is simple and convenient to install; the top end of the short partition 62 can be fixed with the top of the box body 1 and then the gap 22 is opened on the short partition 62, or the top end of the short partition 62 and the top of the box body 1 are directly provided with the gap 22. When thermal runaway occurs, the hot air in the sub-compartments 21 in the same battery compartment 2 is discharged upward, and then discharged out of the box body 1 through an explosion-proof plate 7 after being combined through the gap 22, and the plurality of sub-compartments 21 share one explosion-proof plate 7, which reduces the design of the explosion-proof plate 7 and facilitates processing.

[0033] As an embodiment, as shown in Figure 2As shown, the long partition plate 61 is fixedly connected with the inner wall of the box body 1 at both ends along the height direction H of the box body 1, so that the adjacent two battery compartments 2 are independently arranged and not communicated, avoiding the spread of high-temperature gas of thermal runaway to the adjacent battery compartment 2, and effectively controlling the range of thermal runaway.

[0034] As an embodiment, as shown in Figure 1 As shown, at least one exhaust port 11 is arranged at the top of the box body 1 corresponding to each battery compartment 2, the exhaust port 11 is communicated with the corresponding battery compartment 2, and one explosion-proof plate 7 is installed at the exhaust port 11 and seals the exhaust port 11. When thermal runaway occurs, the airflow breaks through the corresponding explosion-proof plate 7 through the exhaust port 11, thereby releasing the internal temperature and air pressure.

[0035] As an embodiment, as shown in Figure 1 and Figure 4 As shown, the explosion-proof plate 7 includes a frame 71 and a weak plate 72, the weak plate 72 is installed in the frame 71, and the frame 71 and the box body 1 are fixed by the fixing bolt 8. When thermal runaway occurs or the air pressure in the box body 1 abnormally rises, the gas impacts the explosion-proof plate 7, causing the weak plate 72 to break, the exhaust port 11 to open, and the high-temperature gas to be conveniently discharged out of the box body 1.

[0036] As an embodiment, as shown in Figure 2 and Figure 3 As shown, the sub-compartment 21 is sequentially provided with a plurality of placement compartments along the height direction H of the box body 1, and the plurality of placement compartments include a plurality of module compartments 211, a high-voltage box compartment 212, and a pipeline harness compartment 213. From the bottom to the top of the box body 1 along the height direction H, the pipeline harness compartment 213, the high-voltage box compartment 212, and the plurality of module compartments 211 are sequentially arranged. Specifically, as shown in Figure 3 As shown, the sub-compartment 21 is sequentially provided with six placement compartments along the height direction H of the box body 1, which are four module compartments 211, one high-voltage box compartment 212, and one pipeline harness compartment 213; the four module compartments 211 are arranged from top to bottom; from the bottom to the top of the box body 1, the pipeline harness compartment 213 is arranged close to the bottom of the box body 1, and then the high-voltage box compartment 212 and the plurality of module compartments 211 are sequentially arranged. Among them, one module compartment 211 corresponds to one battery module; the high-voltage box compartment 212 is used for placing a high-voltage box, mainly for controlling the charging and discharging process of the battery module; the pipeline harness compartment 213 is used for placing various harnesses and pipeline systems, and these harnesses include high-voltage harnesses and low-voltage harnesses, which are responsible for transmitting electric energy and control signals, respectively.

[0037] As an embodiment, as shown in Figure 2As shown, a plurality of groups of the partitions 9 are arranged in the sub-warehouses 21, and the plurality of groups of the partitions 9 divide the sub-warehouses 21 into a plurality of placement warehouses. Specifically, on the same height level of the box body 1, one partition 9 is arranged on each of the two inner walls of the sub-warehouse 21, so that the components placed in each placement warehouse can be placed horizontally and stably. Of course, the partitions 9 can be replaced by baffle plates, and the two ends of the plurality of baffle plates are fixed on the two inner walls of the sub-warehouse 21 along the length direction L of the box body 1. Among them, arranging the partitions 9 can reduce the overall weight of the container box 1 and save part of the material.

[0038] As an embodiment, the internal pressure of the box body 1 is greater than the atmospheric pressure, and the difference between the internal pressure and the atmospheric pressure is A, wherein 5pa≤A≤1000pa, at this time, the internal of the box body 1 is in a micro-positive pressure state, which avoids the oxygen and water vapor in the outside from entering the box body 1, and improves the fireproof effect of the box body 1.

[0039] As an embodiment, 5pa≤A≤500pa, or 5pa≤A≤200pa, or 5pa≤A≤100pa, or 10pa≤A≤200pa, or 5pa≤A≤50pa, or 5pa≤A≤20pa, when in the above range, it is ensured that the internal of the box body 1 is in a micro-positive pressure state, and the nitrogen gas in the box body 1 is prevented from flowing out too fast due to too large pressure difference.

[0040] The plurality of sub-warehouses 21 in one battery warehouse 2 are communicated, and the plurality of sub-warehouses 21 in one battery warehouse 2 share at least one explosion-proof plate 7. When the temperature in any one of the sub-warehouses 21 rises or an abnormality occurs inside, the explosion-proof plate 7 is blasted to release the internal temperature and pressure, the number of the explosion-proof plates 7 can be reduced, the exhaust port 11 is further reduced, the overall strength of the box body 1 is improved, the processing efficiency is improved, and the processing cost is reduced.

[0041] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above, it is not intended to limit the utility model. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution range of the utility model, and equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model are still within the protection range of the technical solution of the utility model.

Claims

1. An energy storage system, comprising a box (1), characterized in that: At least one battery compartment (2) is provided in the box body (1), and a plurality of sub-compartments (21) are provided in the battery compartment (2). The plurality of sub-compartments (21) in one battery compartment (2) are connected to each other. An explosion-proof plate (7) is provided at the top of the box body (1) at a position corresponding to each battery compartment (2), and the plurality of sub-compartments (21) in one battery compartment (2) share at least one explosion-proof plate (7).

2. The energy storage system according to claim 1, wherein: The box (1) comprises a plurality of battery compartments (2); a plurality of partitions are provided in the box (1), and the partitions comprise a plurality of long partitions (61) and at least one short partition (62); the plurality of long partitions (61) are arranged at intervals along the length direction (L) of the box (1) to divide the interior of the box (1) into a plurality of battery compartments (2); at least one battery compartment (2) is divided into a plurality of sub-compartments (21) by at least one short partition (62); and the plurality of sub-compartments (21) are arranged along the length direction (L) of the box (1).

3. The energy storage system according to claim 2, wherein: Both ends of the long partition (61) along the height direction (H) of the box body (1) are fixedly connected to the inner wall of the box body (1).

4. The energy storage system according to claim 2, wherein: The short partition (62) comprises two ends along the height direction (H) of the box body (1), one end of which is fixedly connected to the inner wall of the box body (1), and a gap (22) is provided between the other end and the inner wall of the box body (1), and adjacent sub-compartments (21) are connected through the gap (22).

5. The energy storage system according to claim 4, characterized in that: The short partition (62) comprises a top end and a bottom end along the height direction (H) of the box body (1), a gap (22) is provided between the top end and the top of the box body (1), and the bottom end is fixedly connected to the bottom of the box body (1).

6. The energy storage system according to claim 1, wherein: At least one exhaust port (11) is provided on the top of the box body (1) at a position corresponding to each battery compartment (2); the exhaust port (11) is communicated with the corresponding battery compartment (2); and one explosion-proof plate (7) is correspondingly installed at one of the exhaust ports (11) and seals the exhaust port (11).

7. The energy storage system according to claim 6, characterized in that: The explosion-proof plate (7) comprises a frame (71) and a weak plate (72), wherein the weak plate (72) is installed in the frame (71), and the frame (71) and the box (1) are fixed by fixing bolts (8), thereby being installed on the exhaust port (11).

8. The energy storage system according to claim 1, wherein: The sub-compartment (21) is provided with a plurality of placement compartments in sequence along the height direction (H) of the box body (1), and the placement compartments include a plurality of module compartments (211), a high-voltage box compartment (212), and a pipeline harness compartment (213); along the height direction (H) of the box body (1), from the bottom to the top of the box body (1), the pipeline harness compartment (213), the high-voltage box compartment (212), and the plurality of module compartments (211) are provided in sequence.

9. The energy storage system according to claim 8, characterized in that: A plurality of groups of shift bars (9) are arranged in the sub-compartment (21), and the plurality of groups of shift bars (9) divide the interior of the sub-compartment (21) into a plurality of the placement compartments.

10. The energy storage system according to claim 1, wherein: The internal pressure of the box (1) is greater than the atmospheric pressure, and the difference between the internal pressure and the atmospheric pressure is A, wherein 5Pa≤A≤1000Pa.

11. The energy storage system according to claim 10, wherein: 5pa≤A≤100pa.

Images