Energy storage battery cabinet

Abstract

The utility model belongs to the technical field of energy storage system temperature control, and discloses an energy storage battery cabinet which comprises a battery rack, an energy storage battery is arranged on the battery rack, a battery air outlet is formed in the side, facing the energy storage battery cabinet, of the energy storage battery, and battery air inlets are formed in the two sides of the energy storage battery; stand columns are arranged on the two sides of the battery rack respectively, and a vertical air duct is formed between the stand columns; a plurality of battery guide rails are transversely arranged on the battery rack, the vertical air duct is divided into a plurality of branch air ducts based on the plurality of transversely arranged battery guide rails, and an air distribution adjusting device is independently arranged on each branch air duct. According to the method, the cooling air volume of each energy storage battery can be accurately controlled, so that the energy storage batteries with different distances from the air conditioner can obtain a proper cooling effect, and the temperature difference between the energy storage batteries is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of temperature control for energy storage systems, and particularly relates to an energy storage battery cabinet. Background Art

[0002] Currently, the mainstream air-cooled heat dissipation solution adopted by industrial and commercial distributed energy storage systems mainly relies on heating and cooling air conditioners for heat exchange. However, since the distributed energy storage system adopts a composition form of multiple energy storage batteries in a single cluster, the relative positions of multiple energy storage batteries within the cluster and the air conditioner are different. Since heat is continuously generated during the charging and discharging process of the energy storage system, over time, the temperature of the energy storage batteries inside the energy storage system will rise. However, due to the different positions of each energy storage battery and the air conditioner, the amount of cold air absorbed by each energy storage battery is inconsistent, resulting in a gradually increasing temperature difference between different energy storage batteries. Among them, the energy storage batteries closer to the air conditioner absorb too much cold air, resulting in too low a temperature, and the energy storage batteries farther from the air conditioner cannot absorb sufficient cold air, resulting in too high a temperature. Long-term too low or too high temperatures will cause the performance of the batteries to decline rapidly. At the same time, a large temperature difference among the energy storage batteries within a cluster for a long time will lead to a decrease in the consistency of the batteries, thereby affecting the overall performance of the energy storage system. Utility Model Content

[0003] The main purpose of this application is to provide an energy storage battery cabinet, aiming to solve the problem of uneven cold air distribution among multiple energy storage batteries in the existing energy storage system due to different distances from the air conditioner.

[0004] To achieve the above object, this application provides the following technical solutions:

[0005] An energy storage battery cabinet, the energy storage battery cabinet includes: a battery rack, on which energy storage batteries are arranged. The energy storage batteries are provided with battery air outlets on the positive side of the energy storage battery cabinet, and battery air inlets are arranged on both sides of the energy storage batteries; columns are respectively arranged on both sides of the battery rack, and a vertical air duct is formed between the columns; a plurality of battery guide rails are horizontally arranged on the battery rack, and the vertical air duct is divided into a plurality of branch air ducts based on the plurality of horizontally arranged battery guide rails, and a air volume distribution and adjustment device is independently arranged on each branch air duct.

[0006] Optionally, the air volume distribution and adjustment device includes: a fixed base, on the upper and lower sides of which along the direction of the vertical air duct, a first limiting plate and a second limiting plate are respectively arranged. On the opposite sides of the first limiting plate and the second limiting plate, a first guide groove and a second guide groove are respectively arranged. An activity plate is arranged between the first guide groove and the second guide groove, and the activity plate is slidably connected to the first limiting plate and the second limiting plate through the first guide groove and the second guide groove.

[0007] Optionally, a plurality of first air outlets are provided on one side of the fixed base facing the battery rack, and a plurality of second air outlets are provided on the movable plate, and the plurality of first air outlets are arranged corresponding to the plurality of second air outlets.

[0008] Optionally, an adjusting plate is provided on one side of the movable plate away from the battery air inlet. A first guiding screw is provided at the upper end of the adjusting plate near the first guiding groove, and a second guiding screw is provided at the lower end of the adjusting plate near the second guiding groove; the first guiding screw and the second guiding screw slide along the first guiding groove and the second guiding groove respectively as the movable plate moves.

[0009] Optionally, a first limiting spring is sleeved on the first guiding screw, and a second limiting spring is sleeved on the second guiding screw.

[0010] Optionally, an adjusting screw is provided at the middle position of the adjusting plate.

[0011] Optionally, limiting protrusions are provided on both the left and right sides of the first limiting plate and the second limiting plate, and limiting grooves are provided on both the upper and lower sides at both ends of the movable plate, and the limiting grooves are matched with the limiting protrusions.

[0012] Optionally, the width of the limiting groove is greater than the width of the limiting protrusion.

[0013] Optionally, a triangular notch is provided on one side of the movable plate close to the adjusting plate, and an intersection line is formed between the triangular notch and the edge of the fixed base.

[0014] Optionally, sealing strips are provided on both the first limiting plate and the second limiting plate.

[0015] Compared with the prior art, the present application can bring the following technical effects:

[0016] By arranging the air volume distribution and adjustment device in the energy storage battery cabinet, the present application can accurately control the cooling air volume of the air conditioner entering each energy storage battery, so that each energy storage battery at different distances from the air conditioner can obtain appropriate cooling air volume, thereby reducing the temperature difference between the energy storage batteries and avoiding the accelerated aging of the energy storage batteries due to overcooling or overheating. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an energy storage battery cabinet provided by an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the air inlet and air outlet of an energy storage battery provided by another embodiment of the present application;

[0019] Figure 3It is a schematic structural diagram of a battery rack provided by another embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of a wind volume distribution and adjustment device provided on the battery rack according to another embodiment of the present application;

[0021] Figure 5 It is a schematic structural diagram of a wind volume distribution and adjustment device provided by another embodiment of the present application;

[0022] Figure 6 It is a schematic structural diagram of the disassembled wind volume distribution and adjustment device provided by another embodiment of the present application;

[0023] Figure 7 It is a schematic diagram of the relative positions of the adjustment plate and the movable plate provided by another embodiment of the present application.

[0024] The description of the reference numerals is as follows:

[0025] 1. Battery rack; 2. Energy storage battery; 3. Battery air outlet; 4. Battery air inlet; 5. Column; 6. Wind volume distribution and adjustment device; 7. Fixed base; 8. Movable plate; 9. First limit plate; 10. Second limit plate; 11. Fixed screw; 12. First guide screw; 13. Second guide screw; 14. First limit spring; 15. Second limit spring; 16. Adjustment plate; 17. Adjustment screw; 18. First air outlet; 19. Second air outlet; 20. Sealing strip; 21. Limit protrusion; 22. Limit groove; 23. Triangular notch. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; 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 components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] Figure 1 As a structural schematic diagram of an energy storage battery cabinet according to an embodiment of the present application, as Figure 1 shown, the energy storage battery cabinet includes: a battery rack 1, on which an energy storage battery 2 is arranged. As Figure 2 shown, a battery air outlet 3 is arranged on the side of the energy storage battery 2 facing the front of the energy storage battery cabinet, and battery air inlets 4 are respectively arranged on both sides of the energy storage battery 2; columns 5 are respectively arranged on both sides of the battery rack 1, and a vertical air duct is formed between the columns 5; a plurality of battery guide rails are horizontally arranged on the battery rack 1. As Figure 3 shown, the vertical air duct is divided into a plurality of branch air ducts based on the plurality of horizontally arranged battery guide rails, and an air volume distribution and adjustment device 6 as Figure 4 shown is separately arranged on each branch air duct.

[0031] Compared with the prior art, in this embodiment, by providing the air volume distribution and adjustment device 6 on each branch air duct, it can ensure that each energy storage battery can obtain appropriate cooling air volume even if the distance from the air conditioner is different, thereby reducing the temperature difference between the energy storage batteries 2, and further preventing some energy storage batteries 2 from accelerating aging due to overcooling or overheating, so as to ensure that all energy storage batteries 2 are within a suitable working temperature range during the charging and discharging process. By providing the air volume distribution and adjustment device 6, the operator can conveniently adjust the cooling air volume of the energy storage battery without using complex tools, thereby effectively solving the problem of uneven cold quantity distribution caused by the different distances of the energy storage batteries 2 from the air conditioner, and further improving the use efficiency of the energy storage batteries 2 and extending the service life of the energy storage batteries.

[0032] In another exemplary embodiment, as Figure 5 and Figure 6 shown, the air volume distribution and adjustment device 6 includes a fixed base 7. On the upper and lower sides of the fixed base 7 along the vertical air duct direction, a first limiting plate 9 and a second limiting plate 10 are respectively provided. On the opposite sides of the first limiting plate 9 and the second limiting plate 10, a first guide groove and a second guide groove are respectively provided. An activity plate 8 is arranged between the first guide groove and the second guide groove. The activity plate 8 is slidably connected to the first limiting plate 9 and the second limiting plate 10 through the first guide groove and the second guide groove.

[0033] In this embodiment, the first guide groove and the second guide groove serve as guiding tracks, providing a clear path for the movement of the activity plate 8. Constrained between the first guide groove and the second guide groove, the activity plate 8 can only move along the path of the guide groove and cannot deviate from this path. In addition, the first guide groove and the second guide groove can reduce the contact area between the activity plate 8 and the first limiting plate 9 and the second limiting plate 10, thereby reducing the friction force between the activity plate 8 and the first limiting plate 9 and the second limiting plate 10, which helps the activity plate 8 to slide smoothly along the first limiting plate 9 and the second limiting plate 10, ensuring that there is no jamming phenomenon.

[0034] In another exemplary embodiment, a plurality of first air outlets 18 are provided on the side of the fixed base 7 facing the battery rack 1, and a plurality of second air outlets 19 are provided on the activity plate 8. The plurality of first air outlets 18 and the plurality of second air outlets 19 are arranged in correspondence.

[0035] In this embodiment, when the cold air of the air conditioner enters the fixed base 7 through the vertical air duct on the battery rack 1, the air volume entering the energy storage battery 2 can be controlled by adjusting the overlapping area between the multiple first air outlets 18 on the fixed base 7 and the multiple second air outlets 19 on the movable plate 8. For example, if a certain energy storage battery 2 is far from the air conditioner, the overlapping area between the first air outlet 18 and the second air outlet 19 can be increased to increase the air volume entering this energy storage battery 2; conversely, if a certain energy storage battery 2 is close to the air conditioner, the overlapping area between the first air outlet 18 and the second air outlet 19 can be decreased to weaken the air volume blown by the air conditioner towards this energy storage battery 2. That is, by adjusting the overlapping area between the first air outlet 18 and the second air outlet 19, the temperature difference of the energy storage battery 2 caused by different distances from the air conditioner can be solved, thereby reducing the temperature gradient between the energy storage batteries 2.

[0036] In another exemplary embodiment, an adjusting plate 16 is provided on the side of the movable plate 8 away from the battery air inlet 4. A first guiding screw 12 is provided at the upper end of the adjusting plate 16 near the first guiding groove, and a second guiding screw 13 is provided at the lower end of the adjusting plate 16 near the second guiding groove; the first guiding screw 12 and the second guiding screw 13 slide along the first guiding groove and the second guiding groove respectively along with the movable plate 8.

[0037] In this embodiment, the first guiding screw 12 and the second guiding screw 13 can be used to guide the adjusting plate 16 to smoothly move along the first guiding groove and the second guiding groove to ensure the stability and accuracy of the adjusting plate 16 during the adjustment process. During the movement of the adjusting plate 16 along the first guiding groove and the second guiding groove, the first guiding screw 12 and the second guiding screw 13 can also slide in the first guiding groove and the second guiding groove at the same time to limit the lateral movement of the adjusting plate 16 and ensure that the adjusting plate 16 can only move in a predetermined direction.

[0038] Further, a first limiting spring 14 and a second limiting spring 15 are respectively sleeved on the first guiding screw 12 and the second guiding screw 13. The first limiting spring 14 and the second limiting spring 15 are used to provide a certain pre-tightening force for the adjusting plate 16, so that the adjusting plate 16 can maintain a definite position when not affected by external forces, preventing the adjusting plate 16 from moving by itself due to external vibration or other factors, thereby maintaining the stability of the air volume distribution. When adjusting the air volume, the operator moves the adjusting plate 16 through the adjusting screw 17 to overcome the resistance of the first limiting spring 12 and the second limiting spring 13, and then realizes the adjustment of the position of the movable plate 8. Once the movable plate 8 is adjusted in place, the pre-tightening forces of the first limiting spring 14 and the second limiting spring 15 can help maintain the adjusted state of the adjusting plate 16 until the adjusting plate 16 is adjusted again.

[0039] In another exemplary embodiment, an adjusting screw 17 is provided at the middle position of the adjusting plate 16.

[0040] In this embodiment, when the operator rotates the adjusting screw 17 in the first direction (for example, the first direction is the clockwise direction), the adjusting plate 16 can be pushed to drive the movable plate 8 to move towards the battery air outlet 3 in the first limiting plate 9 and the second limiting plate 10 along the first guide groove and the second guide groove at the same time, thereby changing the relative position between the movable plate 8 and the fixed base 7. By adjusting the relative position between the movable plate 8 and the fixed base 7 through the adjusting screw 17, the deviation between the plurality of second air outlets 19 on the movable plate 8 and the plurality of first air outlets 18 on the fixed base 7 can be accurately adjusted, and then the air volume entering the energy storage battery 2 from the vertical air duct can be adjusted (the smaller the deviation between the first air outlet 18 and the second air outlet 19, the larger the air volume entering the energy storage battery; on the contrary, the larger the deviation between the first air outlet 18 and the second air outlet 19, the smaller the air volume entering the energy storage battery), so as to achieve the purpose of directionally adjusting the temperature of a single energy storage battery. When the operator rotates the adjusting screw 17 in the second direction (for example, the second direction is the counterclockwise direction), the adjusting plate 16 can be pulled away from the battery air outlet, and then the movable plate 8 can return to its original position.

[0041] In this embodiment, by setting the cooperation of the adjusting screw 17 with the first guiding screw 12 and the second guiding screw 13, it can be ensured that the air volume distribution adjusting device 6 works accurately and stably, thereby realizing the adjustment of the air volume distribution of the energy storage batteries 2 at different positions.

[0042] In another exemplary embodiment, limiting protrusions 21 are provided on both the left and right sides of the first limiting plate 9 and the second limiting plate 10, and limiting grooves 22 are provided on both the upper and lower sides of both ends of the movable plate 8, and the limiting grooves 22 are matched with the limiting protrusions 21.

[0043] In this embodiment, the limiting protrusions 21 provided on the left and right sides of the first limiting plate 9 have the same width as the limiting protrusions 21 provided on the left and right sides of the second limiting plate 10, and are both assumed to be a. The limiting protrusions 21 serve as the limiting boundaries for the movable plate 8 during movement, and can ensure that the movable plate 8 slides smoothly along a predetermined path. The limiting grooves 22 provided on the upper and lower sides at both ends of the movable plate 8 have the same width, and are both assumed to be b. The limiting grooves 22 can be used to limit the movement range of the movable plate 8 to ensure the accuracy and stability of air volume adjustment. The width of the first air outlet 18 is assumed to be c, and b = a + c is satisfied. This dimensional relationship indicates that the width of the limiting grooves 22 needs to be greater than the width of the limiting protrusions 21, and at the same time, the width of the first air outlet 18 is also considered. The design of this dimension allows different degrees of overlap to occur between the second air outlet 19 on the movable plate 8 and the first air outlet 18 during the movement of the movable plate 8, so as to achieve precise adjustment of the air volume entering the energy storage battery 2. Specifically, when the adjusting screw 17 is rotated in the first direction (for example, clockwise), the movable plate 8 will be driven to slide along the first limiting plate 9 and the second limiting plate 10 towards the battery air outlet 3. When the right limit of the limiting groove 22 (i.e., the limit on the side of the limiting groove 22 away from the battery air outlet 3) touches the limiting protrusions 21 on the first limiting plate 9 and the second limiting plate 10, the overlapping area between the first air outlet 18 and the second air outlet 19 on the movable plate 8 reaches the maximum, that is, they are in a completely overlapping state. In this case, the energy storage battery can obtain the maximum cold air volume. When the adjusting screw 17 is rotated in the second direction (for example, counterclockwise), the adjusting plate 16 will be pulled, and then the movable plate 8 will be driven to slide along the first limiting plate 9 and the second limiting plate 10 away from the battery air outlet 3. When the left limit of the limiting groove 22 (i.e., the limit on the side of the limiting groove 22 close to the battery air outlet 3) touches the limiting protrusions 21 on the first limiting plate 9 and the second limiting plate 10, the overlapping area between the first air outlet 18 and the second air outlet 19 on the movable plate 8 is zero, that is, they are in a completely non-overlapping state. At this time, cold air cannot directly enter the energy storage battery through the first air outlet 18 and the second air outlet 19, so it is difficult for this energy storage battery to obtain cold air volume, thereby being able to reduce or block the air volume of this energy storage battery. It can be seen that by controlling the distance between the limiting grooves 22 on the movable plate 8 and the limiting protrusions 21 on the first limiting plate 9 and the second limiting plate 10, the overlapping area between the first air outlet 18 and the second air outlet 19 can be controlled, and further, the cold air volume entering the energy storage battery 2 from the vertical air duct can be controlled.Since the air volume distribution and adjustment device on each branch air duct is independently set, it means that the operator can independently control each air volume distribution and adjustment device and then perform personalized adjustment and control on the cooling air volume of the energy storage battery 2 on each battery rack according to the cooling requirements, so that each energy storage battery 2 can obtain the cooling air volume that best suits its position and working status.

[0044] In another exemplary embodiment, Figure 7 As shown, a triangular notch 23 is provided on one side of the movable plate 8 close to the adjustment plate 16 .

[0045] In this embodiment, the right-angled side length of the triangular notch 23 is a, and the triangular notch 23 forms an intersection line with the edge of the fixed base 7. For example, the length of the intersection line between the triangular notch 23 and the edge of the fixed base 7 can be defined as x, and the length of the intersection line changes with the movement of the movable plate 8. When the first air outlet 18 and the second air outlet 19 completely overlap, the length of the intersection line is equal to the right-angled side length of the triangular notch, that is, x = a. As the overlap area between the first air outlet 18 and the second air outlet 19 decreases, the value of the intersection line length x decreases accordingly. When the overlap area between the first air outlet 18 and the second air outlet 19 is zero, the value of the intersection line length x is also 0. When rotating the adjustment screw 17, the operator only needs to observe the intersection line length x to intuitively determine the overlap area between the first air outlet 18 and the second air outlet 19, and thus understand the current distribution of the cooling air volume.

[0046] In another exemplary embodiment, a sealing strip 20 is provided on both the first limiting plate 9 and the second limiting plate 10 .

[0047] In this embodiment, the provision of a sealing strip 20 effectively fills the small gap between the first and second limiting plates 9, 10, and the movable plate 8, preventing cold air from flowing along unintended paths and leaking, thereby affecting the cooling effect. Furthermore, the sealing strip 20 typically has a certain degree of thermal insulation, which can, to a certain extent, prevent external heat from penetrating into the battery cabinet through the gaps in the air duct, thereby helping to maintain a low temperature environment within the battery cabinet and improving cooling efficiency.

[0048] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An energy storage battery cabinet, characterized in that, The energy storage battery cabinet includes: A battery rack (1) is provided with energy storage batteries (2). The energy storage batteries (2) are provided with battery air outlets (3) on the positive side of the energy storage battery cabinet, and battery air inlets (4) are respectively provided on both sides of the energy storage batteries (2). Columns (5) are respectively provided on both sides of the battery rack (1), and a vertical air duct is formed between the columns (5). A plurality of battery guide rails are horizontally arranged on the battery rack (1), and the vertical air duct is divided into a plurality of branch air ducts based on the plurality of horizontally arranged battery guide rails. An air volume distribution and adjustment device (6) is separately provided on each branch air duct.

2. The energy storage battery cabinet according to claim 1, wherein, The air volume distribution and adjustment device (6) includes: A fixed base (7), on the upper and lower sides of the fixed base (7) along the direction of the vertical air duct, a first limiting plate (9) and a second limiting plate (10) are respectively provided. On the opposite sides of the first limiting plate (9) and the second limiting plate (10), a first guide groove and a second guide groove are respectively provided. An activity plate (8) is arranged between the first guide groove and the second guide groove, and the activity plate (8) is slidably connected to the first limiting plate (9) and the second limiting plate (10) through the first guide groove and the second guide groove.

3. The energy storage battery cabinet according to claim 2, characterized in that, On the side of the fixed base (7) facing the battery rack (1), a plurality of first air outlets (18) are provided, and a plurality of second air outlets (19) are provided on the activity plate (8). The plurality of first air outlets (18) and the plurality of second air outlets (19) are arranged in correspondence.

4. The energy storage battery cabinet according to claim 2, wherein, On the side of the activity plate (8) away from the battery air inlet (4), an adjustment plate (16) is provided. At the upper end of the adjustment plate (16) near the first guide groove, a first guiding screw (12) is provided. At the lower end of the adjustment plate (16) near the second guide groove, a second guiding screw (13) is provided. The first guiding screw (12) and the second guiding screw (13) slide along the first guide groove and the second guide groove respectively with the activity plate (8).

5. The energy storage battery cabinet according to claim 4, characterized in that, A first limiting spring (14) is sleeved on the first guiding screw (12), and a second limiting spring (15) is sleeved on the second guiding screw (13).

6. The energy storage battery cabinet according to claim 4, characterized in that, An adjustment screw (17) is provided at the middle position of the adjustment plate (16).

7. The energy storage battery cabinet according to claim 2, wherein, Limiting protrusions (21) are provided on the left and right sides of the first limiting plate (9) and the second limiting plate (10), and limiting grooves (22) are provided on the upper and lower sides of both ends of the activity plate (8). The limiting grooves (22) are matched with the limiting protrusions (21).

8. The energy storage battery cabinet according to claim 7, characterized in that The width of the limiting groove (22) is greater than the width of the limiting protrusion (21).

9. The energy storage battery cabinet according to claim 4, characterized in that, On the side of the activity plate (8) close to the adjustment plate (16), a triangular notch (23) is provided, and an intersection line is formed between the triangular notch (23) and the edge of the fixed base (7).

10. The energy storage battery cabinet according to claim 2, characterized in that, Sealing strips (20) are provided on both the first limiting plate (9) and the second limiting plate (10).

Images