Energy storage container and energy storage system

Abstract

The utility model belongs to the technical field of battery heat dissipation, and provides an energy storage container and an energy storage system.The energy storage container comprises a container body, a container door, an air conditioning unit and a heat dissipation air duct, the air conditioning unit is arranged on the container door, and an air supply pipe can be in butt joint with an air inlet when the container door is closed; the air conditioning unit is arranged in the energy storage container so that a fan of the air conditioning unit can convey cold air into the heat dissipation air channel, and in the working process of the air conditioning unit, hot air in the energy storage space can be extracted so that heat dissipation of the battery pack can be completed. The air conditioning unit is arranged on the container door, so that the containing performance of the energy storage container can be improved, and the air conditioning unit can be conveniently maintained and repaired.

Description

Technical Field

[0001] The utility model relates to the technical field of battery heat dissipation, in particular to a heat dissipation device energy storage container and an energy storage system. Background Technique

[0002] Inside the energy storage container, there are multiple battery clusters. Each battery cluster is composed of battery packs connected in series and parallel. After being connected to the energy storage converter and its auxiliary facilities, it can form an independently operating battery combination. In the process of converting the input electric energy into chemical energy by the battery pack, heat energy is inevitably released. On the one hand, the accumulated heat energy will reduce the charge and discharge efficiency of the battery pack. On the other hand, excessive heat energy will cause the battery pack to catch fire spontaneously. Therefore, during the process of converting electric energy into chemical energy by the battery pack, it is necessary to dissipate heat through the air conditioner unit and the circulating air duct.

[0003] If the air conditioner unit is set on the side wall of the container, after the container is placed at a certain position, there may be other containers or obstacles placed around the container, which will affect the heat dissipation effect of the air conditioner unit. Therefore, in order to reduce the floor area of the container and not affect the heat dissipation effect of the air conditioner unit, the air conditioner unit is mostly set at the bottom of the container, and the circulating air duct is set at the top of the container. Specifically, the air supply duct of the air conditioner unit is communicated with the air inlet of the circulating air duct to convey cold air into the circulating air duct. Along the length direction of the bottom of the circulating air duct, there are several air duct air outlets, and several air duct air outlets are respectively directed towards several battery packs. However, since the air conditioner unit is set at the bottom of the container, it will not only occupy the internal space of the container, affect the storage performance of the container, but also be inconvenient for its maintenance.

[0004] Therefore, the above problems need to be solved urgently. Content of the Utility Model

[0005] The purpose of the utility model is to provide an energy storage container and an energy storage system to improve the accommodation performance of the energy storage container and be convenient for the maintenance and repair of the air conditioner unit.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An energy storage container includes a box body and a box door. The box body and the box door can be assembled to form an energy storage space. Multiple battery packs are arranged in the energy storage space. The energy storage container further includes:

[0008] An air conditioner unit, arranged on the box door;

[0009] The heat dissipation air duct is arranged at the top of the energy storage space, and the heat dissipation air duct includes an air inlet and a plurality of air outlets. The air inlet is docked with the air supply pipe of the air conditioner unit, and the plurality of air outlets are arranged in one-to-one correspondence with the plurality of battery packs.

[0010] Preferably, the energy storage container further includes a first sealing assembly, and the first sealing assembly is arranged between the air supply pipe and the air inlet to seal the docking part of the air supply pipe and the air inlet.

[0011] Preferably, the first sealing assembly includes:

[0012] A sealing frame, the sealing frame is sleeved on the air supply pipe, and the distance between the sealing frame and the air inlet is adjustable;

[0013] A sealing ring, the sealing ring is arranged on the sealing frame and is arranged opposite to the air inlet.

[0014] Preferably, along the circumferential direction of the sealing frame, a plurality of first oblong holes are uniformly arranged on the sealing frame, and the length direction of each first oblong hole is consistent with the length direction of the sealing frame;

[0015] The first sealing assembly further includes a plurality of bolts, and the plurality of bolts are arranged in one-to-one correspondence with the plurality of first oblong holes. The bolts can penetrate through the first oblong holes and be screwed to the air supply pipe.

[0016] Preferably, the energy storage container further includes a plurality of partition plates, and the plurality of partition plates are all arranged in the energy storage space and can divide the energy storage space into a plurality of sub-spaces for accommodating the battery packs;

[0017] The heat dissipation air duct is formed by splicing a first heat dissipation wall and a second heat dissipation wall. The first heat dissipation wall is arranged at the top of the energy storage space, and the second heat dissipation wall is arranged at the top of the plurality of partition plates.

[0018] Preferably, the heat dissipation air duct further includes a sealing part, and the sealing part is arranged at the connection between the first heat dissipation wall and the second heat dissipation wall.

[0019] Preferably, the energy storage container further includes:

[0020] A fire pipe, one end of the fire pipe is connected to a water source, and the other end can penetrate through the heat dissipation air duct;

[0021] A second sealing assembly, and the second sealing assembly is arranged between the fire pipe and the heat dissipation air duct.

[0022] Preferably, the second sealing assembly includes:

[0023] The first seal, having a first profiling surface;

[0024] The second seal, having a second profiling surface, and the first profiling surface and the second profiling surface can be combined to form a sealing ring adapted to the fire hose.

[0025] Preferably, the energy storage container further includes a connecting member disposed between the air inlet and the top of the energy storage space.

[0026] An energy storage system includes a plurality of energy storage containers as described above, and a plurality of the heat dissipation air ducts are interconnected.

[0027] The beneficial effects of the present utility model:

[0028] In the present utility model, an energy storage container and an energy storage system are proposed. The air conditioner unit is arranged on the box door, and when the box door is closed, the air supply duct can be docked with the air inlet, so that the fan of the air conditioner unit can convey cold air into the heat dissipation air duct. Moreover, during the operation of the air conditioner unit, the hot air in the energy storage space can be extracted to complete the heat dissipation of the battery pack. Compared with arranging the air conditioner unit inside the energy storage container, arranging the air conditioner unit on the box door can not only improve the accommodation performance of the energy storage container, but also facilitate the maintenance and repair of the air conditioner unit. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the energy storage system proposed in the embodiment of the present utility model;

[0030] Figure 2 is Figure 1 a schematic structural diagram of the energy storage system with the box body removed in ;

[0031] Figure 3 is a schematic structural diagram of the connection between the air supply duct and the first sealing assembly proposed in the embodiment of the present utility model;

[0032] Figure 4 is Figure 3 a partial enlarged view of A in ;

[0033] Figure 5 is a schematic structural diagram of the heat dissipation air duct proposed in the embodiment of the present utility model;

[0034] Figure 6 is Figure 5 a partial enlarged view of B in.

[0035] In the figure:

[0036] 1. Box body; 2. Box door;

[0037] 3. Air conditioner unit; 31. Air supply duct;

[0038] 4. Heat dissipation air duct; 41. Air inlet; 42. Air outlet; 43. First heat dissipation wall; 44. Second heat dissipation wall;

[0039] 5. First sealing assembly; 51. Sealing frame; 511. First oblong hole; 52. Sealing ring;

[0040] 6. Partition board; 7. Sealing part;

[0041] 8. Second sealing assembly; 81. First seal; 811. Second oblong hole; 82. Second seal;

[0042] 9. Connecting piece. Detailed implementation mode

[0043] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0044] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected" and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include that the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the first feature is at a lower horizontal height than the second feature.

[0046] In the description of this embodiment, the terms "upper", "lower", "right", etc., the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] Please refer to Figures 1 to 6 , in this embodiment, an energy storage container is proposed, which includes a box body 1, a box door 2, an air conditioning unit 3 and a heat dissipation air duct 4. The box body 1 and the box door 2 can be assembled to form an energy storage space. A plurality of battery packs are arranged in the energy storage space. The air conditioning unit 3 is arranged on the box door 2; the heat dissipation air duct 4 is arranged at the top of the energy storage space, and the heat dissipation air duct 4 includes an air inlet 41 and a plurality of air outlets 42. The air inlet 41 is docked with the air supply duct 31 of the air conditioning unit 3, and the plurality of air outlets 42 are arranged in one-to-one correspondence with the plurality of battery packs. With such a setting, it is ensured that cold air can be evenly delivered to each battery pack, so as to ensure uniform heat dissipation of each battery pack.

[0048] In practical applications, after the container is placed at a certain position, in order to facilitate the maintenance and replacement of the internal battery packs, it is often necessary to leave a margin for the staff to enter and exit at the box door 2. Therefore, in this embodiment, the air conditioning unit 3 is arranged on the box door 2, and when the box door 2 is closed, the air supply duct 31 can be docked with the air inlet 41, so as to facilitate the fan of the air conditioning unit 3 to deliver cold air into the heat dissipation air duct 4. And during the operation of the air conditioning unit 3, it can extract the hot air in the energy storage space (the hot air refers to the cold air that has absorbed heat) to complete the heat dissipation of the battery packs. Compared with arranging the air conditioning unit 3 inside the energy storage container, arranging the air conditioning unit 3 on the box door 2 can not only improve the accommodation performance of the energy storage container, but also facilitate the maintenance and repair of the air conditioning unit 3.

[0049] It should be noted that the air conditioning unit 3 includes a refrigeration cycle system and a fan. The refrigeration cycle system is used to produce cold air, and the cold air is sent into the heat dissipation channel by the fan. The cold air flows inside the energy storage space, exchanges heat with the surface of the battery pack, absorbs the heat generated by the battery pack, and then the cold air that has absorbed heat is drawn back into the air conditioning unit 3 for cooling treatment again. In addition, the structure and principle of the air conditioning unit 3 are well known to those skilled in the art and will not be elaborated here.

[0050] Since the box door 2 is often opened as needed, the air conditioner unit 3 will move with the box door 2, and the air supply duct 31 will be separated from the air inlet 41. Over time, when the air supply duct 31 is docked with the air inlet 41, there may be a gap between the two, and the heated cold air will enter the heat dissipation duct 4 through this gap, thus affecting the heat dissipation effect. Therefore, in this embodiment, the energy storage container further includes a first sealing assembly 5, and the first sealing assembly 5 is arranged between the air supply duct 31 and the air inlet 41 to seal the docking part of the air supply duct 31 and the air inlet 41. In practical applications, when the box door 2 is closed, the first sealing assembly 5 will first abut against the edge of the air inlet 41, so as to eliminate the gap between the air inlet 41 and the air supply duct 31, and further avoid the heated cold air from entering the heat dissipation duct 4.

[0051] Specifically, the first sealing assembly 5 includes a sealing frame 51 and a sealing ring 52. The sealing frame 51 is sleeved on the air supply duct 31, and the distance between the sealing frame 51 and the air inlet 41 is adjustable; the sealing ring 52 is arranged on the sealing frame 51 and is arranged opposite to the air inlet 41. It can be understood that by adjusting the relative position between the sealing frame 51 and the air supply duct 31 as needed, the applicability of the first assembly can be improved, and the sealing ring 52 can prevent the heated cold air from entering the heat dissipation duct 4.

[0052] Further, along the circumferential direction of the sealing frame 51, a plurality of first oblong holes 511 are uniformly arranged on the sealing frame 51, and the length direction of each first oblong hole 511 is consistent with the length direction of the sealing frame 51; the first sealing assembly 5 further includes a plurality of bolts, and the plurality of bolts are arranged in one-to-one correspondence with the plurality of first oblong holes 511. The bolts can penetrate the first oblong holes 511 and be screwed on the air supply duct 31. In practical applications, threaded holes corresponding to the first oblong holes 511 are arranged on the air supply duct 31, and the threaded holes are adapted to the bolts. By adjusting the position of the sealing frame 51, the relative sliding between the bolts and the oblong holes can occur, and then the bolts can lock the sealing frame 51.

[0053] The energy storage container further includes a plurality of partition plates 6, and the plurality of partition plates 6 are all arranged in the energy storage space and can divide the energy storage space into a plurality of sub-spaces for accommodating battery packs. The plurality of sub-spaces are arranged in one-to-one correspondence with the plurality of air outlets 42; the heat dissipation duct 4 is formed by splicing a first heat dissipation wall 43 and a second heat dissipation wall 44. The first heat dissipation wall 43 is arranged on the top of the energy storage space, and the second heat dissipation wall 44 is arranged on the top of the plurality of partition plates 6. It can be understood that the arrangement of the partition plates 6 can prevent the heat generated between different battery packs from affecting each other. In addition, the first heat dissipation wall 43 is arranged on the top of the energy storage space, and the second heat dissipation wall 44 is arranged on the top of the plurality of partition plates 6. In this way, the heat dissipation duct 4 can be simultaneously subjected to the supporting force from the partition plates 6 and the pulling force from the top of the energy storage space, so as to improve the service life of the energy storage container.

[0054] Furthermore, due to machining errors and assembly errors between the first heat dissipation wall 43 and the second heat dissipation wall 44, there may be a gap between the first heat dissipation wall 43 and the second heat dissipation wall 44, resulting in the heated air entering the heat dissipation air duct 4. Therefore, in this embodiment, the heat dissipation air duct 4 further includes a sealing portion 7, and the sealing portion 7 is disposed at the connection between the first heat dissipation wall 43 and the second heat dissipation wall 44.

[0055] Specifically, the heat dissipation portion is in a plate-like structure, and this plate-like structure can block the connection between the first heat dissipation wall 43 and the second heat dissipation wall 44, thereby being able to seal the connection between the first heat dissipation wall 43 and the second heat dissipation wall 44.

[0056] Of course, in some other feasible embodiments, the heat dissipation portion can also be other existing heat dissipation structures, which are not specifically limited herein.

[0057] When a failure occurs in the air conditioner unit 3, resulting in the battery pack catching fire due to heat, it is necessary to extinguish the burning battery pack. Therefore, in this embodiment, a fire pipe is provided inside the box body 1 to complete the water delivery. Specifically, one end of the fire pipe is connected to a water source, and the other end can penetrate through the heat dissipation air duct 4; thereby being able to deliver water into the heat dissipation air duct 4, and the water flows from each air outlet 42 to the battery pack, so as to achieve the purpose of extinguishing the fire. However, due to machining errors, there is a gap between the fire pipe and the heat dissipation air duct 4, which easily causes the heated cold air to enter the heat dissipation air duct 4. Therefore, in this embodiment, the energy storage container further includes a second sealing assembly 8, and the second sealing assembly 8 is disposed between the fire pipe and the heat dissipation air duct 4.

[0058] Specifically, the second sealing assembly 8 includes a first sealing member 81 and a second sealing member 82. The first sealing member 81 has a first profiling surface; the second sealing member 82 has a second profiling surface, and the first profiling surface and the second profiling surface can be combined to form a sealing ring adapted to the fire pipe. In practical applications, the first sealing member 81 and the second sealing member 82 are adjusted according to the size of the fire pipe, which will not be elaborated herein.

[0059] Furthermore, the first sealing member 81 and the second sealing member 82 are fixed to the heat dissipation air duct 4 by bolts, and second oblong holes 811 are provided on both the first sealing member 81 and the second sealing member 82. With the cooperation between the bolts and the second oblong holes 811, the position of the sealing ring can be adjusted to adapt to different working conditions.

[0060] Since it is necessary to ensure that the air supply duct 31 and the air inlet 41 can be docked, preferably, the air inlet 41 is extended towards the position of the air supply duct 31. To ensure that the air inlet 41 will not break, in this embodiment, the energy storage container further includes a connecting member 9, which is arranged between the air inlet 41 and the top of the energy storage space. With this arrangement, the safety performance of the air inlet 41 can be improved. The shape of the connecting member 9 is preferably L-shaped, with one side arranged at the air inlet 41 and the other side arranged at the top of the energy storage space.

[0061] Based on the above, in this embodiment, an energy storage system is further proposed, which includes a plurality of energy storage containers as described above, and a plurality of heat dissipation air ducts 4 are interconnected. The arranged plurality of energy storage containers can improve the functional effect, and since the plurality of heat dissipation air ducts 4 are interconnected, when a certain air conditioner unit 3 fails, the remaining air conditioner units 3 can convey cold air to the corresponding energy storage containers through the interconnected heat dissipation air ducts 4, thereby improving the safety performance.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An energy storage container, comprising a box body (1) and a box door (2), wherein the box body (1) and the box door (2) can be assembled to form an energy storage space, wherein a plurality of battery packs are arranged in the energy storage space, and wherein: The energy storage container also includes: An air conditioning unit (3) is arranged on the cabinet door (2); A heat dissipation duct (4) is arranged at the top of the energy storage space, and the heat dissipation duct (4) includes an air inlet (41) and a plurality of air outlets (42), the air inlet (41) is connected to the air supply pipe (31) of the air conditioning unit (3), and the plurality of air outlets (42) are arranged in a one-to-one correspondence with the plurality of battery packs.

2. The energy storage container according to claim 1, characterized in that: The energy storage container further comprises a first sealing component (5), wherein the first sealing component (5) is arranged between the air supply pipe (31) and the air inlet (41) to seal a joint portion between the air supply pipe (31) and the air inlet (41).

3. The energy storage container according to claim 2, characterized in that: The first sealing assembly (5) comprises: A sealing frame (51), wherein the sealing frame (51) is sleeved on the air supply pipe (31), and the distance between the sealing frame (51) and the air inlet (41) is adjustable; A sealing ring (52), wherein the sealing ring (52) is arranged on the sealing frame (51) and is arranged opposite to the air inlet (41).

4. The energy storage container according to claim 3, characterized in that: A plurality of first oblong holes (511) are evenly arranged on the sealing frame (51) along the circumference of the sealing frame (51), and the length direction of each of the first oblong holes (511) is consistent with the length direction of the sealing frame (51); The first sealing assembly (5) further comprises a plurality of bolts, wherein the plurality of bolts are arranged in a one-to-one correspondence with the plurality of first oblong holes (511), and the bolts are capable of passing through the first oblong holes (511) and being screwed to the air supply pipe (31).

5. The energy storage container according to claim 1, characterized in that: The energy storage container further comprises a plurality of partitions (6), wherein the plurality of partitions (6) are arranged in the energy storage space and are capable of dividing the energy storage space into a plurality of sub-spaces for accommodating the battery packs; The heat dissipation duct (4) is composed of a first heat dissipation wall (43) and a second heat dissipation wall (44); the first heat dissipation wall (43) is arranged on the top of the energy storage space, and the second heat dissipation wall (44) is arranged on the top of a plurality of the partitions (6).

6. The energy storage container according to claim 5, characterized in that: The heat dissipation duct (4) further comprises a sealing portion (7), wherein the sealing portion (7) is arranged at the connection between the first heat dissipation wall (43) and the second heat dissipation wall (44).

7. The energy storage container according to claim 1, characterized in that: The energy storage container also includes: a fire-fighting pipe, one end of which is connected to a water source and the other end of which is capable of passing through the heat dissipation duct (4); A second sealing component (8), the second sealing component (8) is arranged between the fire-fighting pipe and the heat dissipation duct (4).

8. The energy storage container according to claim 7, characterized in that: The second sealing assembly (8) comprises: A first sealing member (81) having a first contoured surface; The second sealing member (82) has a second contoured surface, and the first contoured surface and the second contoured surface can be assembled to form a sealing ring adapted to the fire-fighting pipe.

9. The energy storage container according to claim 1, characterized in that: The energy storage container further comprises a connecting piece (9) which is arranged between the air inlet (41) and the top of the energy storage space.

10. An energy storage system, characterized in that: It comprises a plurality of energy storage containers according to any one of claims 1 to 9, and the plurality of heat dissipation ducts (4) are interconnected.

Images