Modularized stackable energy storage cabinet

Abstract

The utility model discloses a modularized stackable energy storage cabinet which comprises a cabinet body, a water chilling unit, a battery module, a high-low voltage connecting piece, a high-voltage box, an energy storage converter and an electrical box, and a direct current chamber, a water machine chamber and an electrical chamber which are independent from one another are arranged in the cabinet body; the direct current chamber is internally provided with a sealing plate, the sealing plate divides the direct current chamber into an inner side and an outer side which are mutually independent, the inner side of the direct current chamber is provided with a plurality of battery modules, the battery modules are arranged in parallel, and the battery modules are connected through high-low voltage connecting pieces. The technical effects are that the direct current chamber, the water machine chamber and the electrical chamber are mutually independent and do not influence each other during maintenance and disassembly, and the safety is high; a modular design is adopted as a whole, all modules can be deleted and combined according to actual use requirements, and personalized customization can be supported; the overall mechanism is compact, the volume energy density is high, horizontal cabinet combination can be achieved, longitudinal stacking combination can also be achieved, the voltage, electric quantity and power adjusting range is wide, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage cabinets, and particularly relates to a modular stackable energy storage cabinet. Background Art

[0002] With the development of new energy technologies, battery cabinets are increasingly widely used in industrial and commercial applications. Their modular concept flexibly provides solutions for households, industrial facilities, and power grids, efficiently utilizes energy, balances the difference between power demand and supply, and provides stable power.

[0003] However, with the increase in application scenarios and demand solutions, different solutions have different focuses and face the problem of "usable but not convenient to use". For example, current energy storage battery cabinets are usually single-cluster. Due to the integration of accessories such as battery packs, PCS (Power Conversion System), high-voltage boxes, and water machines, affected by height and considering the difficulty of on-site maintenance, the number of battery pack strings usually does not exceed 6, and the voltage range of the entire system is relatively low, which imposes many restrictions on actual application scenarios. For another example, to meet the application requirements of larger energy and power, multiple cabinets can be connected in series and parallel through wire harnesses to form a system for use, but the connection is relatively complex, it is more troublesome to use, and at the same time, there are practical problems such as low volume energy density, high input cost, and high maintenance input. For example, the heat insulation structures such as heat insulation cotton in existing solutions are arranged on the cabinet part after the integration of multiple devices. Different devices have different requirements for heat preservation, ventilation, sealing, etc. In the same cabin, although separated by sheet metal, it is difficult to match and meet their respective application needs, the design difficulty is relatively large, and the disassembly and maintenance affect each other, with poor independence. Therefore, it is necessary to design a new type of energy storage cabinet to solve the above technical problems. Summary of the Utility Model

[0004] Therefore, the utility model provides a modular stackable energy storage cabinet to solve the above problems in the prior art.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] According to the first aspect of the utility model, a modular stackable energy storage cabinet includes a cabinet body, a chiller, a battery module, a high and low voltage connector, a high-voltage box, a power storage converter, and an electrical box. The cabinet body is provided with an independent DC room, a water machine room, and an electrical room.

[0007] The DC room is provided with a sealing plate which divides the DC room into an independent inner side and an outer side. A plurality of the battery modules are arranged on the inner side of the DC room, and the plurality of battery modules are arranged side by side. Each of the battery modules is connected by a high-voltage and low-voltage connector, and a water-cooling pipeline is arranged between two adjacent battery modules. The high-voltage box is arranged on the outer side of the DC room, and the high-voltage box is connected to the battery module through a high-voltage and low-voltage plug-in unit;

[0008] The chiller is arranged in the water chiller room, and the chiller is connected to the water-cooling pipeline;

[0009] The energy storage converter and the electrical box are arranged in the electrical room, and the electrical box, the energy storage converter and the high-voltage box are connected in sequence.

[0010] Further, a cabinet door is arranged on the outer side of the DC room, and the cabinet door is provided with a sealing strip.

[0011] Further, heat insulation cotton is arranged around the DC room.

[0012] Further, the number of the DC rooms is multiple, and the multiple DC rooms are arranged independently of each other.

[0013] Further, an explosion-proof valve and a dehumidifying device are further included, and both the explosion-proof valve and the dehumidifying device are arranged on the sealing plate.

[0014] Further, the water chiller room is located at the top of the DC room, and the electrical room is located on one side of the DC room.

[0015] Further, waterproof louvers and ventilation filters are arranged around the water chiller room.

[0016] Further, a pipeline layout space and a grounding point are arranged at the bottom of the cabinet body, and a baffle is arranged around the pipeline layout space.

[0017] Further, a hoisting mechanism is further included, and the hoisting mechanism is arranged on the top of the cabinet body.

[0018] Further, the hoisting mechanism includes a plurality of lifting rings, and the lifting rings are threadedly connected to the cabinet body.

[0019] The utility model has the following advantages: The DC room, the water chiller room and the electrical room are independent of each other, and there is no mutual influence during maintenance and disassembly, and the safety is high; The overall adopts a modular design, and can be deleted and combined according to the actual use requirements, and can support personalized customization; The overall mechanism is compact, and the volume energy density is high. It can not only be horizontally paralleled, but also be longitudinally stacked and combined, and has a wide voltage, power and power adjustment range, and the application range is wider. 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 will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0021] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0022] Figure 1 It is a schematic diagram of the internal structure of a modular stackable energy storage cabinet provided in some embodiments of the present invention.

[0023] Figure 2 It is a side view of a modular stackable energy storage cabinet provided in some embodiments of the present invention.

[0024] In the figure: 1, chiller; 2, battery module; 3, high and low voltage connector; 4, high voltage box; 5, water cooling pipeline; 6, sealing plate; 7, baffle; 8, energy storage converter; 9, explosion-proof valve; 10, electrical box; 11, dehumidification device; 12, high and low voltage plug-in; 13, lifting mechanism; 14, grounding point; 15, pipeline layout space; 16, cabinet body. Specific Embodiments

[0025] The following specific embodiments illustrate the implementation manners of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are some embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] As Figure 1 and 2 shown, a modular stackable energy storage cabinet in the first aspect embodiment of the present invention includes a cabinet body 16, a chiller 1, a battery module 2, a high and low voltage connector 3, a high voltage box 4, an energy storage converter 8, and an electrical box 10. The cabinet body 16 is provided with an independent DC room, a water machine room, and an electrical room;

[0028] The DC room is equipped with a sealing plate 6. The sealing plate 6 divides the DC room into an independent inner side and outer side. Through processing techniques such as welding and sealant, the sealing plate 6 can meet the IP67 sealing grade. Inside the DC room, there are multiple battery modules 2. The specific number of battery modules 2 is set according to actual usage requirements. The more the number of battery modules 2, the greater the power and energy that can be provided. The multiple battery modules 2 are arranged in parallel. The multiple battery modules 2 can be connected in series or in parallel according to usage requirements. Each battery module 2 is connected by a high and low voltage connector 3 to form a battery cluster. A water cooling pipeline 5 is provided between adjacent two battery modules 2. During use, the water cooling pipeline 5 is used to cool the battery modules 2. The high voltage box 4 is arranged outside the DC room. The high voltage box 4 is connected to the battery modules 2 through high and low voltage plugs 12. The high voltage box 4 can be arranged in multiple numbers according to the number of battery clusters.

[0029] The chiller 1 is arranged in the chiller room. The chiller 1 is connected to the water cooling pipeline 5. The chiller 1 is used to provide a cooling medium for the water cooling pipeline 5.

[0030] The energy storage converter 8 and the electrical box 10 are arranged in the electrical room. The electrical box 10, the energy storage converter 8 and the high voltage box 4 are connected in sequence.

[0031] During installation, the wires received from the client first pass through the electrical room and then reach the DC room. The entire energy storage cabinet forms a complete system.

[0032] In this embodiment, it should be noted that the combination introduced in this embodiment is not the only combination of this energy storage cabinet. During use, different combinations such as DC room, DC room + chiller room, DC room + electrical room can be selected. In addition, the number of battery modules 2 in the DC room is for illustration, and the number can be increased or decreased according to requirements. It can be connected in series into one cluster or multiple clusters. The number of battery cells in the battery module 2 can be increased or decreased according to requirements.

[0033] Furthermore, a fire protection device is arranged in the DC room, which can provide reliable protection for the system operation. The number of DC rooms is multiple, and the multiple DC rooms are arranged independently. The internal structure of each DC room is the same.

[0034] It also includes an explosion-proof valve 9 and a dehumidification device 11. The explosion-proof valve 9 and the dehumidification device 11 are both arranged on the sealing plate 6.

[0035] Furthermore, the chiller room is located on the top of the DC room. Waterproof louvers and ventilation filters are arranged around the chiller room, which can provide sufficient air intake area and heat dissipation area for the chiller 1. The electrical room is located on one side of the DC room.

[0036] The technical effects achieved in this embodiment are as follows: the DC room, the water machine room, and the electrical room are independent of each other, and there is no interference during maintenance and disassembly, with high safety; the overall design is modular, and each module can be deleted or combined according to actual usage requirements, supporting personalized customization; the overall structure is compact, with a high volume energy density. It can not only be horizontally cabinet-mounted but also vertically stacked and combined, with a wide range of voltage, power, and power adjustment, and a wider scope of application.

[0037] Embodiment 2

[0038] As Figure 1 and 2 shown, another modular stackable energy storage cabinet provided in this embodiment has a structure including all the contents of Embodiment 1, and only the different parts will be described below.

[0039] In this embodiment, a cabinet door is provided on the outside of the DC room. The cabinet door is a double-leaf door and is provided with a sealing strip to ensure the sealing performance.

[0040] In this embodiment, it should be noted that heat insulation cotton is provided around the DC room to meet the heat insulation requirements of the DC room.

[0041] Embodiment 3

[0042] As Figure 1 and 2 shown, another modular stackable energy storage cabinet provided in this embodiment has a structure including all the contents of Embodiment 1, and only the different parts will be described below.

[0043] In this embodiment, a pipeline layout space 15 and a grounding point 14 are provided at the bottom of the cabinet body 16, and a baffle 7 is provided around the pipeline layout space 15.

[0044] In this embodiment, it should be noted that the pipeline layout space 15 is the wiring space for the external connection cables and pipelines of the energy storage cabinet, and the baffle 7 is used for covering up the ugliness.

[0045] The technical effects achieved in this embodiment are as follows: by providing the pipeline layout space 15, an installation space can be provided for the external connection lines and pipelines, making the overall structure more regular and beautiful after installation.

[0046] Embodiment 4

[0047] As Figure 1 and 2 shown, another modular stackable energy storage cabinet provided in this embodiment has a structure including all the contents of Embodiment 1, and only the different parts will be described below.

[0048] In this embodiment, a hoisting mechanism 13 is further included, and the hoisting mechanism 13 is provided at the top of the cabinet body 16.

[0049] In this embodiment, it should be noted that the hoisting mechanism 13 includes a plurality of lifting rings, and the lifting rings are threadedly connected to the cabinet body 16; specifically, the number of lifting rings is four, and the four lifting rings are respectively arranged at the four corners of the top of the cabinet body 16.

[0050] The technical effect achieved by this embodiment is that by setting the hoisting mechanism 13, it is convenient to hoist the entire energy storage cabinet; the lifting rings are threadedly connected to the cabinet body 16. When multiple energy storage cabinets are stacked up and down for use, the lifting rings can be removed, and the adjacent upper and lower energy storage cabinets can be fixedly connected by bolts.

[0051] Although the present invention has been described in detail with general descriptions and specific embodiments above, based on 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.

[0052] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration, rather than used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in technical content, should also be regarded as the scope of implementation of the present invention.

Claims

1. A modular stackable energy storage cabinet, characterized in that, It includes a cabinet body (16), a water chiller (1), a battery module (2), high and low voltage connectors (3), a high voltage box (4), an energy storage converter (8) and an electrical box (10). An independent DC room, a water chiller room and an electrical room are provided in the cabinet body (16). A sealing plate (6) is provided in the DC room. The sealing plate (6) divides the DC room into an independent inner side and outer side. A plurality of the battery modules (2) are provided on the inner side of the DC room. The plurality of battery modules (2) are arranged side by side. Each of the battery modules (2) is connected by the high and low voltage connectors (3). A water cooling pipeline (5) is provided between two adjacent battery modules (2). The high voltage box (4) is arranged on the outer side of the DC room. The high voltage box (4) is connected to the battery module (2) through a high and low voltage plug-in (12). The water chiller (1) is arranged in the water chiller room. The water chiller (1) is connected to the water cooling pipeline (5). The energy storage converter (8) and the electrical box (10) are arranged in the electrical room. The electrical box (10), the energy storage converter (8) and the high voltage box (4) are connected in sequence.

2. The modular stackable energy storage cabinet according to claim 1, wherein A cabinet door is provided on the outer side of the DC room. The cabinet door is provided with a sealing strip.

3. The modular stackable energy storage cabinet according to claim 1, characterized in that, Heat insulation cotton is provided around the DC room.

4. A modular stackable energy storage cabinet according to claim 1, characterized in that, The number of the DC rooms is multiple. The multiple DC rooms are arranged independently of each other.

5. A modular stackable energy storage cabinet according to claim 1, characterized in that, An explosion-proof valve (9) and a dehumidifying device (11) are further included. The explosion-proof valve (9) and the dehumidifying device (11) are both arranged on the sealing plate (6).

6. The modular stackable energy storage cabinet according to claim 1, wherein The water chiller room is located on the top of the DC room. The electrical room is located on one side of the DC room.

7. A modular stackable energy storage cabinet according to claim 6, characterized in that Waterproof louvers and ventilation filters are provided around the water chiller room.

8. A modular stackable energy storage cabinet according to claim 6, characterized in that, A pipeline layout space (15) and a grounding point (14) are provided at the bottom of the cabinet body (16). Baffles (7) are provided around the pipeline layout space (15).

9. The modular stackable energy storage cabinet according to claim 1, wherein A hoisting mechanism (13) is further included. The hoisting mechanism (13) is arranged on the top of the cabinet body (16).

10. The modular stackable energy storage cabinet according to claim 9, characterized in that, The hoisting mechanism (13) includes a plurality of lifting rings. The lifting rings are threadedly connected to the cabinet body (16).

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