New energy storage cabinet

Abstract

The utility model discloses a new energy storage cabinet, which relates to the technical field of energy storage cabinets and comprises a battery rack, a split air conditioner and a plurality of battery packs. The battery rack is provided with a first end and a second end which are oppositely arranged along the length direction, and the battery rack is also provided with a plurality of accommodating cavities which are arranged between the first end and the second end at intervals along the length direction; the split-type air conditioner is provided with an air outlet and an air return port, the air outlet is formed in the first end of the battery rack, and the air return port is formed in the position, corresponding to the second end, in the first side of the battery rack; the plurality of battery packs are mounted in the plurality of accommodating cavities in a one-to-one correspondence manner; and the split type air conditioner is used for cooling the battery pack in the accommodating cavity. The new energy storage cabinet provided by the utility model aims to improve the temperature balance of each battery pack in the new energy storage cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage cabinets, in particular to a new energy energy storage cabinet. Background Art

[0002] In new energy storage cabinets or prefabricated storage chambers, battery packs serve as the fundamental energy storage unit. Each cabinet or prefabricated storage chamber contains multiple energy storage units. To achieve optimal performance, the temperature difference between these units must be within a reasonable range. Currently, a common thermal management solution uses a single wall-mounted air conditioner for cooling a single energy storage cluster. However, the cold air output by this air conditioner cannot effectively exchange heat with the battery packs in the bottom layers of the battery cluster, resulting in poor temperature uniformity within the battery cluster. Utility Model Content

[0003] The main purpose of this utility model is to provide a new energy storage cabinet, aiming to improve the temperature balance of each battery pack in the new energy storage cabinet.

[0004] To achieve the above-mentioned purpose, the present invention proposes a new energy storage cabinet, which includes:

[0005] A battery rack having a first end and a second end disposed opposite to each other along a length direction, the battery rack further having a plurality of accommodating cavities spaced between the first end and the second end along the length direction;

[0006] A split-type air conditioner having an air outlet and an air return outlet, wherein the air outlet is provided at a first end of the battery rack, and the air return outlet is provided at a position on a first side of the battery rack corresponding to the second end;

[0007] A plurality of battery packs, wherein the plurality of battery packs are mounted in a one-to-one correspondence in the plurality of accommodating cavities;

[0008] The split-type air conditioner is used to cool the battery pack in the accommodating cavity.

[0009] In one embodiment, the air outlet is used to output a first gas to the battery rack. The first gas flows from the first end to the second end of the battery rack, cools the battery packs in the multiple accommodating cavities, and then heats up to a second gas. The second gas is discharged from the battery rack through the return air outlet and discharged into the split air conditioner. The split air conditioner is used to cool the second gas to the first gas and discharge the first gas into the battery rack again through the air outlet.

[0010] In one embodiment, each battery pack has an exhaust port on a side close to the return air port.

[0011] In one embodiment, the battery rack is a multi-layer battery rack, and each layer of the multi-layer battery rack has two accommodating cavities.

[0012] In one embodiment, the split-type air conditioner further comprises an air conditioner main body and a ventilation duct;

[0013] The return air port is installed on one side of the air conditioner main body, one end of the ventilation duct is connected to the air conditioner main body, and the air outlet is installed on the other end of the ventilation duct.

[0014] In one embodiment, the ventilation duct is provided with a thermal insulation layer.

[0015] In one embodiment, at least one PCS component is further included, and the PCS component is arranged in any of the accommodating cavities.

[0016] In one embodiment, the PCS assembly is disposed in one of the plurality of accommodating cavities close to the second end.

[0017] In one embodiment, the size of the air outlet is the same as the size of the first end of the battery rack.

[0018] In one embodiment, the system further includes a shell, wherein the battery rack, the split air conditioner and the plurality of battery packs are all arranged in the shell.

[0019] In summary, the new energy energy storage cabinet proposed in the present invention is intended to improve the temperature balance of each battery pack in the new energy energy storage cabinet. Specifically, the new energy energy storage cabinet includes a battery rack, multiple battery packs, and a split air conditioner. After the multiple battery packs are correspondingly installed in the accommodating cavity of the battery rack, they are cooled by the split air conditioner. It can be understood that the air inlet of the split air conditioner is arranged at one end of the battery rack, and the return air outlet is arranged on one side near the other end. In this way, the distance between the air inlet and the return air outlet of the air conditioner is increased, so that the cold air can pass through the entire battery cluster system from top to bottom, avoiding the phenomenon of uneven temperature inside the system, and the cooling capacity of the air conditioner can be fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of an embodiment of a new energy storage cabinet provided by the utility model;

[0022] Figure 2This is a structural schematic diagram of an embodiment of a split-type air conditioner provided by the utility model.

[0023] Description of Figure Numbers:

[0024] 100. Battery rack; 110. First end; 120. Second end; 130. Accommodation cavity; 140. First side; 200. Split air conditioner; 210. Air outlet; 220. Return air outlet; 230. Air conditioner body; 240. Ventilation duct; 300. Battery pack; 400. PCS assembly; 500. Casing.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

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

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the 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 number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] In new energy storage cabinets or prefabricated storage chambers, battery packs serve as the fundamental energy storage unit. Each cabinet or prefabricated storage chamber contains multiple energy storage units. To achieve optimal performance, the temperature difference between these units must be within a reasonable range. Currently, a common thermal management solution uses a single wall-mounted air conditioner for cooling a single energy storage cluster. However, the cold air output by this air conditioner cannot effectively exchange heat with the battery packs in the bottom layers of the battery cluster, resulting in poor temperature uniformity within the battery cluster.

[0030] The main purpose of this utility model is to provide a new energy storage cabinet, which aims to improve the temperature balance of each battery pack 300 in the new energy storage cabinet. In one embodiment, Figure 1 and Figure 2 As shown, the new energy storage cabinet includes a battery rack 100, a split air conditioner 200 and a plurality of battery packs 300; the battery rack 100 has a first end 110 and a second end 120 arranged opposite to each other along the length direction, and the battery rack 100 also has a plurality of accommodating cavities 130 spaced between the first end 110 and the second end 120 along the length direction; the split air conditioner 200 has an air outlet 210 and a return air outlet 220, the air outlet 210 is provided at the first end 110 of the battery rack 100, and the return air outlet 220 is provided at a position corresponding to the second end 120 in the first side 140 of the battery rack 100; a plurality of battery packs 300 are installed in the plurality of accommodating cavities 130 in a one-to-one correspondence; the split air conditioner 200 is used to cool the battery packs 300 in the accommodating cavities 130.

[0031] In this embodiment, the battery rack 100 is used to secure and support the battery packs 300 and can be designed as a frame capable of accommodating multiple battery packs 300. The first end 110 of the battery rack 100 refers to one end of the battery rack 100, and the second end 120 refers to the opposite end. Optionally, the battery rack 100 can be multi-layered or single-layered. The accommodating cavities 130 in a single-layer battery rack 100 can be arranged at intervals along the horizontal direction; the accommodating cavities 130 in a multi-layer battery rack 100 can be arranged at intervals along the vertical (length) direction. Furthermore, each layer of the multi-layer battery rack 100 can have more than one accommodating cavity 130 spaced apart horizontally, meaning that each layer of the battery rack 100 can have multiple accommodating cavities 130. Optionally, in some examples, the battery rack 100 is made of metal such as iron or aluminum into an open frame structure; in some examples, the battery rack 100 is a closed box as a whole, and a multi-layer partition or a drawer-type structure can be set inside to place the battery pack 300; in some examples, the shape of the battery rack 100 is customized according to specific needs and can be adjusted according to factors such as the specifications of the battery pack 300, the layout of the energy storage system, and the installation environment.

[0032] In this embodiment, the air outlet 210 of the split-type air conditioner 200 is located at one end (first end 110) of the battery rack 100, while the air return vent 220 is located on the other side of the battery rack 100, near the opposite end (second end 120). This allows the cold air exhausted from the split-type air conditioner 200 to enter through the first end 110, pass through all battery packs 300, and then be exhausted from the corresponding position at the second end 120.

[0033] In this embodiment, the battery pack 300 is the basic energy storage unit in the new energy storage cabinet, and multiple battery packs 300 are placed in the accommodating cavity 130 of the battery rack 100. Each battery pack 300 generates heat during operation, so effective heat dissipation measures are required.

[0034] Specifically, the cool air generated by the split-type air conditioner 200 can be exhausted from the first end 110 of the battery rack 100. The cool air can then flow from the edge of the battery rack 100 from the first end 110 to the second end 120. Alternatively, a ventilation cavity can be provided within the battery rack 100 to guide the cool air from the first end 110 to the second end 120. When each layer of battery racks 100 has multiple accommodating cavities 130, ventilation cavities can be provided between each accommodating cavity 130 to ensure that the cool air flows throughout the entire battery rack 100.

[0035] It is understood that by placing the air conditioner's air outlet 210 at one end of the battery rack 100 and the return air vent 220 near the other end, cold air can be ensured to enter through the air outlet 210 and then be discharged through the return air vent 220. Cold air can enter from one end and pass through the entire battery rack 100, so even the battery pack 300 located at the bottom can be effectively cooled. Compared to the traditional design where a single wall-mounted air conditioner can only cool the top few layers of the battery cluster, this split air conditioner 200 increases the spacing between the air conditioner's air inlet and outlet 210, allowing cold air to flow from top to bottom through the entire battery cluster system, avoiding uneven temperatures within the system and fully utilizing the air conditioner's cooling capacity.

[0036] In summary, the new energy storage cabinet proposed in this utility model is designed to improve the temperature balance of each battery pack 300 in the new energy storage cabinet. Specifically, the new energy storage cabinet includes a battery rack 100, multiple battery packs 300, and a split air conditioner 200. The air inlet of the split air conditioner 200 is located at one end of the battery rack 100, and the return air vent 220 is located on one side near the other end. This increases the distance between the air conditioner inlet and return air vent 220, allowing cold air to flow from top to bottom through the entire battery cluster system, avoiding uneven temperatures within the system and fully utilizing the air conditioner's cooling capacity.

[0037] In one embodiment, if Figure 1As shown, the air outlet 210 is used to output a first gas to the battery rack 100. The first gas flows from the first end 110 to the second end 120 of the battery rack 100, cools the battery packs 300 in the multiple accommodating cavities 130, and then heats up to a second gas. The second gas is discharged from the battery rack 100 through the return air outlet 220 and discharged into the split air conditioner 200. The split air conditioner 200 is used to cool the second gas to the first gas and discharge the first gas into the battery rack 100 again through the air outlet 210.

[0038] In this embodiment, the air outlet 210 of the split-type air conditioner 200 is responsible for outputting "first air," which refers to cool air after air conditioning. After exiting the air outlet 210, the cool air (first air) flows along the first end 110 to the second end 120 of the battery rack 100. As the cool air flows, it passes through the various cavities 130, cooling the battery packs 300 therein. Because the battery packs 300 generate heat during operation, the cool air is heated as it passes through the battery packs 300, transforming the originally cool air into "second air." This "second air" is actually heated air. In this embodiment, the heated air (second air) is discharged from the battery rack 100 and ultimately collected by the return air vent 220 on the battery rack 100. It then enters the split-type air conditioner 200 for processing. The split-type air conditioner 200 is responsible for cooling the heated air back to cool air. After cooling, the cool air is discharged back into the battery rack 100 through the air outlet 210, starting a new cooling cycle. This ensures that the cool air effectively covers all battery packs 300, improving the temperature uniformity of the battery packs 300 within the energy storage cabinet and thus enhancing the overall performance and stability of the energy storage system.

[0039] In one embodiment, if Figure 1 As shown, each battery pack 300 has an exhaust port on one side close to the return air port 220 .

[0040] As you can understand, each battery pack 300 has an exhaust vent on one side near the return air vent 220. This means that the battery pack 300 not only has an internal heat dissipation mechanism, but also has an external opening specifically for exhausting hot air. Through this exhaust vent, the heated air (secondary gas) is discharged directly into the return air duct within the battery rack 100 through the exhaust vent on the side of the battery pack 300. This exhaust vent design provides a clearer path for the cool air flow, avoiding unnecessary detours within the battery rack 100 and ensuring smoother air flow.

[0041] In one embodiment, if Figure 1As shown, the battery rack 100 is a multi-layer battery rack 100 , and each layer of the multi-layer battery rack 100 has two accommodating cavities 130 .

[0042] The battery rack 100 is designed as a multi-layer structure, with each layer separated by partitions or other structures, forming multiple vertical levels. This design has the advantage of fully utilizing vertical space, improving the space utilization of the energy storage cabinet. This allows for the placement of more battery packs 300 within a limited floor space, thereby increasing energy storage capacity. Furthermore, each layer of the battery rack 100 can accommodate more than one battery pack 300, thus fully utilizing the horizontal space and improving the space utilization of the energy storage cabinet.

[0043] In one embodiment, if Figure 1 and Figure 2 As shown, the split-type air conditioner 200 also has an air conditioner main body 230 and a ventilation duct 240; the return air outlet 220 is installed on one side of the air conditioner main body 230, one end of the ventilation duct 240 is connected to the air conditioner main body 230, and the air outlet 210 is installed at the other end of the ventilation duct 240.

[0044] In this embodiment, the split air conditioner 200 includes two major parts: an air conditioner main body 230 and a ventilation duct 240. The air conditioner main body 230 is an integrated component, which includes core components such as a compressor, a condenser, and an evaporator, and is responsible for cooling and heating functions. The return air port 220 is installed on one side of the air conditioner main body 230 and is used to collect the heated second gas so that it can be returned to the air conditioner main body 230 for cooling. One end of the ventilation duct 240 is connected to the air conditioner main body 230, and the other end is connected to the air outlet 210, so that the first gas generated by the air conditioner main body 230 can be transported to the first end 110 of the battery rack 100 through the ventilation duct 240.

[0045] It is understandable that the design of the ventilation duct 240 allows the air-conditioning main body 230 to be placed in a more flexible position, without having to be right next to the battery rack 100, thereby improving the convenience of installation and the layout flexibility of the system. Secondly, by transporting cold air through the ventilation duct 240, the flow direction and flow rate of the cold air can be more accurately controlled, ensuring that the cold air can be evenly distributed to each battery pack 300, thereby improving the cooling efficiency. In addition, the ventilation duct 240 can reduce the loss of cold air during transmission, ensuring that more cold air can reach the location that needs cooling. Finally, the separate design of the ventilation duct 240 makes the connection between the air-conditioning main body 230 and the battery rack 100 simpler, which is convenient for daily maintenance and inspection.

[0046] In addition, since the return air outlet 220 of the split air conditioner 200 is provided on the air conditioner body 230, the air conditioner body 230 can be stably placed on the ground or other stable surfaces when it is provided at the corresponding position without the need for additional suspension or support devices.

[0047] In one embodiment, the ventilation duct 240 is provided with a thermal insulation layer.

[0048] In this embodiment, the transmission pipe is wrapped with an insulation layer. The insulation layer can be made of materials such as asbestos or rubber-plastic insulation with a thermal conductivity of no more than 0.1 W / (km). It will be appreciated that the presence of the insulation layer reduces heat loss during the transmission of the cold air, ensuring that the cold air maintains a relatively low temperature upon reaching the battery rack 100, thereby improving cooling efficiency and ensuring temperature stability during the transmission of the first gas.

[0049] In one embodiment, at least one PCS assembly 400 is further included, located in any of the accommodating cavities 130. The PCS assembly 400 is a key device for managing and converting electrical energy. It can convert direct current (DC) to alternating current (AC), or vice versa, facilitating the bidirectional flow of electrical energy between the energy storage system and the grid.

[0050] The PCS assembly 400 can be disposed in any accommodating cavity 130 in the energy storage cabinet, can be placed together with the battery pack 300 in an accommodating cavity 130 , or can be disposed alone in an accommodating cavity 130 .

[0051] It is understood that during operation, the PCS assembly 400 also generates heat, and cold air passing through the PCS assembly 400 also cools it. The cooling process for the PCS assembly 400 is consistent with the cooling process for the battery pack 300 described above. In this way, the PCS assembly 400 and the battery pack 300 share a cooling system, reducing system complexity while ensuring that both the PCS assembly 400 and the battery pack 300 operate within an appropriate temperature range, thereby improving system stability and safety.

[0052] In one embodiment, the PCS assembly 400 is disposed in one of the plurality of accommodating cavities 130 close to the second end 120 .

[0053] It is understandable that if the hot air generated by the PCS assembly 400 is not removed promptly, it may adversely affect the nearby battery packs 300, especially at the bottom of the battery rack 100, as traditional air conditioning systems may not be able to effectively cool these locations. Therefore, by placing the PCS assembly 400 at the second end 120 of the battery rack 100, that is, the bottom, and because the air conditioning return vent 220 is directly in front of the PCS, the hot air affected by the PCS can directly enter the air conditioning return vent 220 and be quickly absorbed by the air conditioning system, thereby reducing the impact of the PCS's heat generation on the underlying battery packs 300.

[0054] In one embodiment, the size of the air outlet 210 is the same as the size of the first end 110 of the battery rack 100 .

[0055] It is understood that when the size of the air outlet 210 is the same as the first end 110 of the battery rack 100, the cool air can be evenly distributed from the air outlet 210 throughout the first end 110 of the battery rack 100, flowing from the first end 110 to the second end 120, thereby avoiding localized overcooling or overheating caused by airflow concentration in certain areas. In this way, airflow distribution helps ensure that the cool air can effectively contact each battery pack 300, improving the heat dissipation stability of the entire energy storage system, increasing cooling efficiency, and ensuring that all battery packs 300 can be maintained within a reasonable temperature range.

[0056] In one embodiment, a housing 500 is further included, and the battery rack 100 , the split-type air conditioner 200 and the plurality of battery packs 300 are all disposed in the housing 500 .

[0057] It is understood that the housing 500 mentioned in this embodiment encapsulates the entire energy storage system, encompassing the battery rack 100, the air conditioner, and the multiple battery packs 300. Housing 500 not only provides physical protection but also isolates the system from the external environment, ensuring the safe and stable operation of the system's internal components.

[0058] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A new energy storage cabinet, characterized in that: The new energy storage cabinet includes: A battery rack having a first end and a second end disposed opposite to each other along a length direction, the battery rack further having a plurality of accommodating cavities spaced between the first end and the second end along the length direction; A split-type air conditioner having an air outlet and an air return outlet, wherein the air outlet is provided at a first end of the battery rack, and the air return outlet is provided at a position on a first side of the battery rack corresponding to the second end; A plurality of battery packs, wherein the plurality of battery packs are mounted in a one-to-one correspondence in the plurality of accommodating cavities; The split-type air conditioner is used to cool the battery pack in the accommodating cavity.

2. The new energy storage cabinet according to claim 1, characterized in that: The air outlet is used to output a first gas to the battery rack. The first gas flows from the first end to the second end of the battery rack, cools the battery packs in the multiple accommodating cavities, and then heats up to a second gas. The second gas is discharged from the battery rack through the return air outlet and discharged into the split air conditioner. The split air conditioner is used to cool the second gas to the first gas and discharge the first gas into the battery rack again through the air outlet.

3. The new energy storage cabinet according to claim 1, characterized in that: Each battery pack has an exhaust port on one side close to the return air port.

4. The new energy storage cabinet according to claim 1, characterized in that: The battery rack is a multi-layer battery rack, and each layer of the multi-layer battery rack has two accommodating cavities.

5. The new energy storage cabinet according to claim 1, characterized in that: The split-type air conditioner also has an air conditioner main body and a ventilation duct; The return air port is installed on one side of the air conditioner main body, one end of the ventilation duct is connected to the air conditioner main body, and the air outlet is installed on the other end of the ventilation duct.

6. The new energy storage cabinet according to claim 5, characterized in that: The ventilation duct is provided with a heat insulation layer.

7. The new energy storage cabinet according to claim 1, characterized in that: It also includes at least one PCS component, which is arranged in any of the accommodating cavities.

8. The new energy storage cabinet according to claim 7, characterized in that: The PCS component is disposed in one of the plurality of accommodating cavities close to the second end.

9. The new energy storage cabinet according to any one of claims 1 to 8, characterized in that: The size of the air outlet is the same as the size of the first end of the battery rack.

10. The new energy storage cabinet according to any one of claims 1 to 8, characterized in that: It also includes a shell, and the battery rack, the split air conditioner and the plurality of battery packs are all arranged in the shell.

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