Battery energy storage system

Abstract

The utility model discloses a battery energy storage system which comprises a box body, a first chamber, a second chamber, a third chamber and a fourth chamber which are mutually independent are arranged in the box body, a transformer and an energy storage converter are arranged in the first chamber, a battery pack and a cooling water pipe are arranged in the second chamber, and a cooling water machine is arranged in the third chamber. The cooling water machine is communicated with the cooling water pipe, and a high-voltage box and a control system are arranged in the fourth bin. A first cabinet door, a second cabinet door and an air outlet shutter are arranged on the front face of the box body, and a third cabinet door, a fourth cabinet door and a first air inlet shutter are arranged on the back face of the box body. The technical effects are as follows: through reasonable arrangement, the bin division design is performed, the size of the whole machine is compact, and the cost of the whole machine can be effectively reduced; and the lithium titanate battery is adopted, so that high-rate charging and discharging can be provided, and the requirements of occasions needing short-time power type use are met.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, and particularly relates to a battery energy storage system. Background Art

[0002] At present, in high-power energy storage systems, lithium iron phosphate battery systems are mainly used. Since the maximum charge and discharge rate of lithium iron phosphate batteries can only reach 1C, they cannot meet the requirements of high-rate charge and discharge. To ensure the system power requirements, lithium iron phosphate monomers are usually connected in series and parallel to form a system. According to the above design scheme, the overall weight and volume of the energy storage system will increase, and the cost will increase. Summary of the Utility Model

[0003] Therefore, the utility model provides a battery energy storage system to solve the above problems in the prior art.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] According to the first aspect of the utility model, a battery energy storage system includes a box body. The box body is provided with mutually independent first, second, third, and fourth compartments. The first compartment is provided with a transformer and a power conversion system for energy storage. The second compartment is provided with a battery pack and a cooling water pipe. The third compartment is provided with a cooling water machine, and the cooling water machine is communicated with the cooling water pipe. The fourth compartment is provided with a high-voltage box and a control system;

[0006] The front of the box body is provided with a first cabinet door, a second cabinet door, and an air outlet louver. The back of the box body is provided with a third cabinet door, a fourth cabinet door, and a first air inlet louver.

[0007] Further, the third compartment is located on the top of the second compartment and the fourth compartment. The fourth compartment is located on the front side of the box body. The second compartment is located on the back side of the box body. The first compartment is located on the right side of the third compartment;

[0008] Ventilation nets are respectively arranged on the front and back sides of the third compartment. The air outlet louver and the first air inlet louver are respectively located on the front and back sides of the first compartment;

[0009] The first cabinet door is used to open the fourth compartment. The second cabinet door and the fourth cabinet door are used to open the first compartment. The third cabinet door is used to open the second compartment.

[0010] Further, it further includes an incoming line compartment. The incoming line compartment is arranged in the box body, and an incoming line switch is arranged in the incoming line compartment.

[0011] Further, it further includes a cooling fan and a second air inlet louver. The cooling fan is arranged in the first chamber, and the second air inlet louver is arranged on the left side of the first chamber.

[0012] Further, it further includes an air duct partition board, which is arranged in the third chamber.

[0013] Further, it further includes a cooling air conditioner. The cooling air conditioner is arranged on the outer side wall of the box body, and the air outlet of the cooling air conditioner is located in the fourth chamber.

[0014] Further, the first cabinet door, the second cabinet door and the third cabinet door are all double-leaf doors, and the fourth cabinet door is a single-leaf door.

[0015] Further, lifting holes are respectively arranged at the bottom and the top of the box body.

[0016] Further, the battery pack adopts lithium titanate batteries.

[0017] The utility model has the following advantages: Through reasonable layout for compartment design, the overall size of the machine is compact, and the overall cost of the machine can be effectively reduced; By adopting lithium titanate batteries, high-rate charge and discharge can be provided to meet the occasions that require short-time power type use. Description of the Drawings

[0018] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0019] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0020] Figure 1 It is a perspective view of a battery energy storage system from the first perspective provided by some embodiments of the present utility model.

[0021] Figure 2 It is a perspective view of a battery energy storage system from the second perspective provided by some embodiments of the present utility model.

[0022] Figure 3The front view of a battery energy storage system provided by some embodiments of the present utility model.

[0023] Figure 4 The side view of a battery energy storage system provided by some embodiments of the present utility model.

[0024] Figure 5 The rear view of a battery energy storage system provided by some embodiments of the present utility model.

[0025] Figure 6 The schematic diagram of the internal structure of a battery energy storage system provided by some embodiments of the present utility model from the first perspective.

[0026] Figure 7 The schematic diagram of the internal structure of a battery energy storage system provided by some embodiments of the present utility model from the second perspective.

[0027] Figure 8 The schematic diagram of the internal structure of a battery energy storage system provided by some embodiments of the present utility model from the third perspective.

[0028] In the figure: 1, box body; 2, incoming line bin; 3, incoming line switch; 4, first bin; 5, energy storage inverter; 6, transformer; 7, cooling fan; 8, first air inlet louver; 9, second air inlet louver; 10, air outlet louver; 11, second bin; 12, battery pack; 13, cooling water pipe; 14, third bin; 15, cooling water machine; 16, air duct partition; 17, fourth bin; 18, high voltage box; 19, control system; 20, cooling air conditioner; 21, first cabinet door; 22, second cabinet door; 23, ventilation net; 24, third cabinet door; 25, fourth cabinet door. Specific embodiments

[0029] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1

[0031] As Figures 1 to 8As shown in the figure, a battery energy storage system according to an embodiment of the first aspect of the present utility model includes a box body 1. The box body 1 has a cuboid structure. Inside the box body 1, there are independent first chamber 4, second chamber 11, third chamber 14 and fourth chamber 17. A transformer 6 and an energy storage inverter 5 are provided in the first chamber 4. A battery pack 12 and a cooling water pipe 13 are provided in the second chamber 11. The number of battery packs 12 is multiple. The cooling water pipe 13 is used to cool the battery pack 12. Specifically, the battery pack 12 uses a lithium titanate battery. The negative electrode of the lithium titanate battery uses lithium titanate. The ion diffusion rate of lithium titanate is one order of magnitude higher than that of graphite. Therefore, the lithium titanate battery can achieve high-rate charge and discharge. The lithium titanate battery has good low-temperature charge and discharge characteristics and excellent safety performance. The lithium titanate battery has a very broad application prospect in the fields of new energy and rail transit transportation. A cooling water machine 15 is provided in the third chamber 14. The cooling water machine 15 is connected to the cooling water pipe 13 through a welded pipeline. A high-voltage box 18 and a control system 19 are provided in the fourth chamber 17;

[0032] On the front of the box body 1, there are a first cabinet door 21, a second cabinet door 22 and an air outlet louver 10. The air outlet louver 10 is arranged on the door panel of the second cabinet door 22. On the back of the box body 1, there are a third cabinet door 24, a fourth cabinet door 25 and a first air inlet louver 8.

[0033] In this embodiment, it should be noted that the third chamber 14 is located on the top of the second chamber 11 and the fourth chamber 17. The fourth chamber 17 is located on the front side of the box body 1. The second chamber 11 is located on the rear side of the box body 1. The second chamber 11 and the fourth chamber 17 are separated by a partition. The first chamber 4 is located on the right side of the third chamber 14;

[0034] Ventilation nets 23 are respectively provided on the front and rear sides of the third chamber 14. The air outlet louver 10 and the first air inlet louver 8 are respectively located on the front and rear sides of the first chamber 4;

[0035] The first cabinet door 21 is used to open the fourth chamber 17. The second cabinet door 22 and the fourth cabinet door 25 are used to open the first chamber 4. The third cabinet door 24 is used to open the second chamber 11;

[0036] The first cabinet door 21, the second cabinet door 22 and the third cabinet door 24 are all double-opening doors. The fourth cabinet door 25 is a single-opening door.

[0037] The technical effects achieved by this embodiment are as follows: Through reasonable layout for compartment design, the overall size of the machine is compact, and the overall cost of the machine can be effectively reduced; By using lithium titanate batteries, high-rate charge and discharge can be provided, meeting the occasions that require short-time power type use.

[0038] Embodiment 2

[0039] As Figures 1 to 8As shown, another battery energy storage system provided in this embodiment has a structure including all the contents of Embodiment 1. Only the different parts will be described below.

[0040] In this embodiment, an incoming line bin 2 is further included. The incoming line bin 2 is arranged inside the box body 1. An incoming line switch 3 is provided inside the incoming line bin 2. A copper bar is provided below the incoming line switch 3, and the copper bar is used to connect to an external power supply.

[0041] In this embodiment, it should be noted that a cooling fan 7 and a second air inlet louver 9 are further included. The cooling fan 7 is arranged inside the first bin 4, and the second air inlet louver 9 is arranged on the left side of the first bin 4;

[0042] A cooling air conditioner 20 is further included. The outdoor unit of the cooling air conditioner 20 is arranged on the outer side wall of the box body 1, and the air outlet of the cooling air conditioner 20 is located inside the fourth bin 17.

[0043] The technical effects achieved by this embodiment are as follows: The transformer 6 and the energy storage converter 5 are installed inside the first bin 4 and are cooled by air cooling; the battery pack 12 is installed inside the second bin 11 and is cooled by top-mounted liquid cooling; the high-voltage box 18 and the control system 19 are installed inside the fourth bin 17 and are cooled by a wall-mounted air conditioner, which can effectively prevent overheating of each component during use, and the overall machine has a compact size and can reduce costs.

[0044] Embodiment 3

[0045] As Figures 1 to 8 As shown, another battery energy storage system provided in this embodiment has a structure including all the contents of Embodiment 1. Only the different parts will be described below.

[0046] In this embodiment, an air duct partition 16 is further included. The air duct partition 16 is arranged inside the third bin 14. By arranging the air duct partition 16, smooth ventilation can be ensured and hot air backflow can be avoided.

[0047] In this embodiment, it should be noted that lifting holes are respectively provided at the bottom and top of the box body 1. By arranging the lifting holes, it is convenient for lifting and handling.

[0048] Although the present invention has been described in detail above with general descriptions and specific embodiments, on the basis of the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

[0049] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships, without substantial changes in the technical content, should also be regarded as the scope of implementation of the present utility model.

Claims

1. A battery energy storage system, characterized in that, It includes a box body (1), and the box body (1) is provided with an independent first chamber (4), second chamber (11), third chamber (14) and fourth chamber (17). A transformer (6) and an energy storage inverter (5) are provided in the first chamber (4), a battery pack (12) and a cooling water pipe (13) are provided in the second chamber (11), a cooling water machine (15) is provided in the third chamber (14), the cooling water machine (15) is communicated with the cooling water pipe (13), and a high-voltage box (18) and a control system (19) are provided in the fourth chamber (17). A first cabinet door (21), a second cabinet door (22) and an air outlet louver (10) are provided on the front surface of the box body (1), and a third cabinet door (24), a fourth cabinet door (25) and a first air inlet louver (8) are provided on the back surface of the box body (1).

2. The battery energy storage system according to claim 1, wherein The third chamber (14) is located at the top of the second chamber (11) and the fourth chamber (17), the fourth chamber (17) is located at the front side of the box body (1), the second chamber (11) is located at the back side of the box body (1), and the first chamber (4) is located at the right side of the third chamber (14). Ventilation nets (23) are respectively provided on the front and back sides of the third chamber (14), and the air outlet louver (10) and the first air inlet louver (8) are respectively located on the front and back sides of the first chamber (4). The first cabinet door (21) is used to open the fourth chamber (17), the second cabinet door (22) and the fourth cabinet door (25) are used to open the first chamber (4), and the third cabinet door (24) is used to open the second chamber (11).

3. A battery energy storage system according to claim 1, wherein It further includes an incoming line chamber (2), the incoming line chamber (2) is arranged in the box body (1), and an incoming line switch (3) is provided in the incoming line chamber (2).

4. A battery energy storage system according to claim 2, wherein, It further includes a heat dissipation fan (7) and a second air inlet louver (9), the heat dissipation fan (7) is arranged in the first chamber (4), and the second air inlet louver (9) is arranged on the left side of the first chamber (4).

5. A battery energy storage system according to claim 2, characterized in that, It further includes an air duct partition (16), and the air duct partition (16) is arranged in the third chamber (14).

6. A battery energy storage system according to claim 2, characterized in that, It further includes a cooling air conditioner (20), the cooling air conditioner (20) is arranged on the outer side wall of the box body (1), and the air outlet of the cooling air conditioner (20) is located in the fourth chamber (17).

7. A battery energy storage system according to claim 1, wherein The first cabinet door (21), the second cabinet door (22) and the third cabinet door (24) are all double-opening doors, and the fourth cabinet door (25) is a single-opening door.

8. A battery energy storage system according to claim 1, characterized in that, Lifting holes are respectively provided at the bottom and top of the box body (1).

9. A battery energy storage system according to claim 1, characterized in that, The battery pack (12) uses a lithium titanate battery.

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