An outdoor air-cooled energy storage cabinet air duct structure and outdoor air-cooled energy storage cabinet

Abstract

The present invention relates to the field of electrochemical energy storage technology, and discloses an air duct structure of an outdoor air-cooled energy storage cabinet, including a cabinet, the cabinet is provided with a plurality of air conditioners, the air conditioner includes a first air outlet and a first air inlet, an air guide plate is provided between the air conditioner and the battery pack, the air guide plate includes a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate is provided with a first air hole, the upper end of the second connecting plate is located between the first air inlet and the first air outlet, the upper end of the third connecting plate abuts against the rear end face of the battery pack, baffles are provided between the two sides of the upper end of the column, the first air outlet, the air guide plate, the cabinet side wall, and the upper surface of the battery pack are enclosed to form a first air duct, the honeycomb hole, the inside of the battery pack and the fan form a second air duct, and the adjacent baffles, the upper surface of the battery pack, the inner surface of the cabinet top, the air guide plate, the cabinet side wall and the first air inlet are enclosed to form a third air duct. The present invention can make full use of the spatial layout of various components inside the energy storage cabinet to set the air duct, and improve the heat dissipation efficiency of the battery pack in the energy storage cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of electrochemical energy storage, and in particular to an outdoor air-cooled energy storage cabinet air duct structure and an outdoor air-cooled energy storage cabinet. Background Art

[0002] In order to meet the operating requirements of equipment or systems, outdoor air-cooled energy storage cabinets (referred to as energy storage cabinets) are often used to provide power to photovoltaic power stations, wind farms, and communication base stations. Multiple rows of battery packs are arranged in the energy storage cabinet. The battery packs in the energy storage cabinet will generate heat during operation. In order to keep the battery packs in the energy storage cabinet at a suitable temperature during operation, the energy storage cabinet is equipped with an air conditioner to dissipate heat inside the energy storage cabinet and the battery packs.

[0003] At present, when the air conditioner supplies air to dissipate heat in the energy storage cabinet, the air conditioning air flows along the air duct provided in the energy storage cabinet. However, the part of the air duct used to send the hot air into the air conditioner is independent of other components in the energy storage cabinet. It is a separate space arranged in parallel with a row of battery packs. The height of the separate space is equal to the height of the energy storage cabinet. As a result, the hot air stays in the energy storage cabinet for a long time, which easily leads to a high ambient temperature in the energy storage cabinet, reducing the heat dissipation efficiency of the battery pack in the energy storage cabinet; it also leads to an increase in the length of the energy storage cabinet, an increase in the overall volume, an increase in the space occupied, a reduction in the number of energy storage cabinets transported at a single time, and a reduction in transportation efficiency. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, one of the objects of the present invention is to provide an air duct structure for an outdoor air-cooled energy storage cabinet, which can make full use of the spatial layout of various components inside the energy storage cabinet to set up the air duct, ensure that the air duct path is short, and can quickly realize single-cycle air supply, thereby improving the heat dissipation efficiency of the battery pack in the energy storage cabinet, making the energy storage cabinet compact as a whole, preventing the overall volume of the energy storage cabinet from becoming larger due to the setting of the air duct, increasing the space occupied, increasing the number of energy storage cabinets transported in a single transport, and improving transportation efficiency.

[0005] The technical solution adopted by the present invention is as follows: an outdoor air-cooled energy storage cabinet air duct structure, including a cabinet, wherein a plurality of columns are arranged in rows and columns in the cabinet, a plurality of brackets are arranged between the two side edges of the columns arranged along the X direction, a battery pack is arranged between two opposite brackets, a plurality of honeycomb holes are arranged on the side of the rear end of the battery pack, a fan is arranged at the front end, the cabinet is provided with a plurality of air conditioners spaced along the Y direction and close to the rear end surface of the battery pack, each of the air conditioners is opposite to a corresponding column of battery packs, the air conditioner comprises a first air outlet and a first air inlet, an air guide plate is arranged between the air conditioner and the rear end surface of the battery pack, the air guide plate comprises a first connecting plate, a second connecting plate and a third connecting plate located at both ends of the first connecting plate and on different surfaces, the second connecting plate is provided with a first air hole opposite to the first air outlet, the second connecting plate and the air conditioner face the cabinet the upper end of the second connecting plate is located between the first air inlet and the first air outlet, there is a gap between the third connecting plate and the rear end surface of the battery pack, and the upper end is in contact with the rear end surface of the battery pack close to the inner surface of the cabinet top, baffles are provided between the upper end sides of the columns in the X direction, the first air outlet, the air guide plate, the side wall of the cabinet, and the upper surface of the battery pack close to the inner surface of the cabinet top form a first air duct for dissipating heat from the battery pack, the honeycomb holes, the interior of the battery pack and the fan form a second air duct for dissipating heat from the inside of the battery pack, the adjacent baffles, the upper surface of the battery pack close to the inner surface of the upper end of the cabinet, the inner surface of the cabinet top, the air guide plate, the side wall of the cabinet and the first air inlet form a third air duct for dissipating heat from the inside of the cabinet, and the air conditioner, the first air duct, the second air duct and the third air duct cooperate to provide circulating airflow for the interior of the cabinet for heat dissipation.

[0006] Principle of the technical solution:

[0007] When the air conditioner is started, the cold source blown out from the air conditioner flows to the outer surface of the battery pack through the first air duct, and then flows to the inside of the battery pack through the second air duct. The hot air inside the battery pack is brought out by the fan, and the hot air generated by the battery pack is brought back to the air conditioner through the third air duct. Due to the arrangement of the air guide plate, the battery pack close to the inner surface of the top of the cabinet, the side walls of the cabinet, and the baffle, the third air duct is located above the first air duct and the second air duct, and is independent of the first air duct and the second air duct. The cold source passes through the first air duct, the second air duct, and the third air duct in turn, and flows in one direction, thereby providing circulating airflow for the battery pack in the cabinet to dissipate heat.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. The present invention sets an air guide plate, a baffle plate, and an air guide plate abutting against the rear end surface of the battery pack near the top of the cabinet, and makes full use of the side wall of the cabinet itself and the upper surface of the battery pack near the top of the cabinet, and sets an air duct for the flow of the cold source of the air conditioner inside the cabinet. The first air duct can guide the cold source to blow toward the battery pack, and the second air duct can allow the cold source to enter the battery pack and bring out the hot air inside the battery pack to dissipate heat inside the battery pack. The third air duct is located above the first air duct and the second air duct. The first air duct, the second air duct and the third air duct surround the battery pack with the battery pack as the center point, so that the air duct path is short, so that the cold source can quickly return to the air conditioner through the first air duct, the second air duct and the third air duct, reducing the time that the hot air brought out by the cold source stays in the cabinet, reducing the influence of the hot air brought out by the cold source on the ambient temperature inside the cabinet, and improving the heat dissipation efficiency of the cabinet and the battery pack;

[0010] 2. In the present invention, when the battery pack is placed on the bracket, the cabinet side wall, the battery pack, the air guide plate and the baffle automatically form a third air duct with two ends connected, and the third air duct is located above the first air duct and the second air duct, and between the battery pack near the top of the cabinet and the inner surface of the top of the cabinet. There is no need to set up a separate air duct to send the hot air brought out by the cold source into the air conditioner. The length of the cabinet is increased along the Y direction, thereby increasing the overall volume of the cabinet, making the interior of the cabinet compact. Compared with a cabinet without a separate air duct, the overall volume of the cabinet has a small change, which increases the number of energy storage cabinets transported in a single time and improves transportation efficiency.

[0011] 3. Since hot air will go upward, when the third air duct is set between the battery pack near the top of the cabinet and the inner surface of the cabinet top, it first follows the direction of the automatic flow of hot air, so that the resistance is small when the cold source drives the hot air into the third air duct, thereby improving the heat dissipation efficiency of the battery pack in the cabinet. In addition, when there are multiple rows of battery packs in the cabinet, the air flow around the battery pack at the bottom is restricted and the temperature will be higher. The design of the third air duct in this solution allows the hot air to flow upward, preventing all the hot air from accumulating under the cabinet and further increasing the temperature of the battery pack below.

[0012] 4. In the present invention, each column of battery packs is provided with a corresponding air conditioner, which can provide a cold source for a column of battery packs in a directional manner, thereby improving the heat dissipation efficiency of the battery packs. The second connecting plate and the third connecting plate on the air guide plate are both connected to the first connecting plate and are on different surfaces, so that the gap between the second connecting plate and the rear end surface of the battery pack is large, and the third connecting plate is close to the rear end surface of the battery pack, so that the space enclosed by the second connecting plate, the first connecting plate and the side wall of the cabinet is large, which can accommodate more cold sources, and the space enclosed by the first connecting plate, the third connecting plate and the side wall of the cabinet is large, which can accommodate more cold sources with hot air.

[0013] As a preferred embodiment of the present invention, a partition plate parallel to the second connecting plate is connected to the lower surface of the first connecting plate, and both sides and the lower end of the partition plate are in contact with the inner wall of the cabinet. The partition plate is provided with a plurality of second air holes with successively increasing areas at intervals along the Z direction, and a support plate is provided between the partition plate and the column close to the partition plate, the upper end of the support plate abuts against the first connecting plate, and the lower end abuts against the inner wall of the cabinet, and the support plate is provided with a plurality of third air holes at intervals along the Z direction.

[0014] Beneficial effect: As the cold wind goes downward, the partition can slow down the cold source coming out of the first air outlet and change the flow direction of the cold source, so that the cold source first stays in the space enclosed by the second connecting plate, the first connecting plate, the partition and the side wall of the cabinet, and then blows to the battery pack through the second air hole, so that both the battery pack located at the top and the battery pack located at the bottom of a column can obtain the cold source. Considering that the battery pack located at the bottom has a higher temperature due to the limited flow of surrounding air, the area of ​​the second air hole is designed to increase successively, so that the battery pack at the bottom can obtain more cold sources, thereby improving the heat dissipation efficiency of the battery pack. The support plate can provide support for the first connecting plate, and can also relatively separate adjacent columns of battery packs, that is, the partition, the support plate, the side of the battery pack, and the side wall of the cabinet enclose a space to guide the cold source, so that the cold source blows quickly to the corresponding column of battery packs. The third air hole can reduce the weight of the support plate, and the cold source can pass through the third air hole to prevent heat accumulation on the support plate.

[0015] As a preferred embodiment of the present invention, a baffle located in the middle of the cabinet is provided with a limiting member for limiting the position of the fire protection pipeline on the top of the cabinet.

[0016] Beneficial effect: The baffle can not only cooperate with the side wall of the cabinet, the guide plate, and the battery pack near the top of the cabinet to form a third air duct, but also provide support for the limiter.

[0017] As a preferred embodiment of the present invention, an inclined fourth connecting plate is provided on the upper end of the third connecting plate, the upper end of the fourth connecting plate abuts against the rear end surface of the battery pack close to the inner surface of the cabinet top, and the two sides abut against the inner wall of the cabinet.

[0018] Beneficial effect: The inclined design of the fourth connecting plate allows for sufficient clearance between the third connecting plate and the rear end surface of the battery pack when the first air duct is isolated from the third air duct, thereby facilitating the gathering of cold sources, allowing the cold sources to flow and blow toward the battery pack near the third connecting plate. It can also guide the cold sources carrying hot air, and the upper surface of the battery pack near the top of the cabinet is located above the first connecting plate, that is, the space enclosed by the third connecting plate, the first connecting plate and the side walls of the cabinet is located below the space enclosed by the baffles on both sides, the battery pack near the top of the cabinet, and the top of the cabinet, to prevent the cold sources carrying hot air from flowing back. The fourth connecting plate can also limit the battery pack near the top of the cabinet.

[0019] A second object of the present invention is to provide an outdoor air-cooled energy storage cabinet, comprising the outdoor air-cooled energy storage cabinet air duct structure described above.

[0020] As a preferred embodiment of the present invention, a gap for placing components is provided between the front end of the cabinet side and the columns close to both the cabinet side and the front end, a water fire fighting pipeline is provided between the columns located between two adjacent columns of battery packs and arranged along the X direction, a first pipeline and a second pipeline are provided at the upper end of the water fire fighting pipeline, the first pipeline is arranged along the X direction, the first pipeline is connected to a first water nozzle close to the top of the cabinet and located between two adjacent battery packs, the second pipeline is arranged along the X direction and passes through the column close to the front end of the cabinet, and a second water nozzle is provided at one end of the second pipeline located outside the column.

[0021] Beneficial effects: First, the water fire fighting pipeline is located between the columns arranged along the X direction, which can make full use of the gap between the columns, making the overall structure of the cabinet compact, and can also be located in the middle of the adjacent battery packs on both sides. Combined with the design of the first pipeline and the first water nozzle, the reasonable layout can ensure that all corners in the cabinet are fully covered during spraying; the second pipeline, the second water nozzle and the components are located between the front ends of both sides of the cabinet and the columns close to the side and front ends of the cabinet at the same time, which can spray the inside of the cabinet in different areas. When an abnormality occurs at the battery pack and the water fire fighting pipeline needs to spray water, the first water nozzle is used to spray the battery pack to prevent the water sprayed from the first water nozzle from spraying to the components, thereby reducing the impact on the components. When an abnormality occurs at the component and the water fire fighting pipeline needs to spray water, the second water nozzle is used to spray the components to prevent the water sprayed from the second water nozzle from spraying to the battery pack to reduce the impact on the battery pack.

[0022] As a preferred embodiment of the present invention, a fire-fighting tank is provided between the front end of the cabinet side and the columns close to the cabinet side and the front end, the fire-fighting tank is connected to a gas fire-fighting pipeline arranged on the top of the cabinet, the gas fire-fighting pipeline includes a third pipeline whose orthographic projection is located between two adjacent columns of battery packs, and a fourth pipeline connected to the third pipeline, the third pipeline is connected to the baffle through a limiter, the third pipeline is connected to a fifth pipeline arranged along the Y direction, the fifth pipeline is connected to a first gas nozzle close to the top of the cabinet and located on the front side of the battery pack front end, one end of the fourth pipeline passes through the first connecting plate, one end of the fourth pipeline is connected to the second gas nozzle, and the second gas nozzle is located between the partition and the column close to the partition.

[0023] Beneficial effects: The design of the gas fire-fighting pipeline, the third pipeline, the fourth pipeline, the fifth pipeline, the first gas nozzle and the second gas nozzle ensures that the gas fire-fighting pipeline can cover every corner of the cabinet when spraying, and the first connecting plate can provide support and limit for the fourth pipeline.

[0024] As a preferred embodiment of the present invention, a fire-fighting device is provided on one side of the top of the cabinet close to the front end surface of the cabinet, and the fire-fighting device includes a fire detector, a fire control box, and a temperature sensor.

[0025] Beneficial effect: Since the third air duct portion is located between the battery pack near the inner surface of the cabinet top and the cabinet top, and the fire-fighting device is located on the cabinet top, the fire-fighting device is located on the channel through which hot air flows, so that the fire-fighting device can quickly obtain the temperature information inside the cabinet and respond quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the air duct structure of the outdoor air-cooled energy storage cabinet of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a part of the air duct structure of the outdoor air-cooled energy storage cabinet of the present invention;

[0028] Figure 3 It is a schematic diagram of a partial structure of the air duct structure of the outdoor air-cooled energy storage cabinet of the present invention from another angle;

[0029] Figure 4 This is a partial structural schematic diagram of the air duct structure of the outdoor air-cooled energy storage cabinet of the present invention from another angle;

[0030] Figure 5 It is a partial structural schematic diagram of the outdoor air-cooled energy storage cabinet of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure at position A of the present invention;

[0032] Figure 7 It is a schematic diagram of a partial structure of the outdoor air-cooled energy storage cabinet of the present invention from another angle;

[0033] Figure 8 This is a partial structural schematic diagram of the outdoor air-cooled energy storage cabinet of the present invention from another angle;

[0034] Fig. 9 This is a partial structural schematic diagram of the outdoor air-cooled energy storage cabinet of the present invention from another angle;

[0035] Fig.10 It is a schematic structural diagram of a wiring socket part in an electrical compartment of an embodiment of the present invention;

[0036] Fig.11 It is a schematic diagram of the structure of the insulating member in the electrical compartment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0038] In the description of the present application, the terms "first", "second", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] The reference numerals include: cabinet 1, column 2, bracket 3, battery pack 4, honeycomb hole 401, fan 402, air conditioner 5, first air outlet 501, first air inlet 502, air guide plate 6, first connecting plate 601, second connecting plate 602, third connecting plate 603, first air hole 604, fourth connecting plate 605, baffle 7, partition 8, second air hole 801, support plate 9, third air hole 901, limiter 10 , water fire fighting pipeline 11, first pipeline 1101, second pipeline 1102, first water nozzle 1103, second water nozzle 1104, fire fighting tank 12, gas fire fighting pipeline 13, third pipeline 1301, fourth pipeline 1302, fifth pipeline 1303, first gas nozzle 1304, second gas nozzle 1305, fire fighting device 14, fire detector 1401, fire fighting control box 1402, temperature sensor 1403.

[0041] Example 1

[0042] like Figures 1 to 9 As shown in the figure, the air duct structure of the outdoor air-cooled energy storage cabinet is as follows: Figure 5 As shown, it includes a cabinet 1, such as Fig. 9 As shown, a plurality of columns 2 are arranged in rows in the cabinet 1, and a plurality of brackets 3 are arranged between the two sides of the columns 2 arranged along the X direction. In this embodiment, the brackets 3 are L-shaped, and a battery pack 4 is arranged between two opposite brackets 3. Figure 1 As shown, a plurality of honeycomb holes 401 are provided on the side of the rear end of the battery pack 4, and a fan 402 is provided on the front end. In this embodiment, three rows and two columns of columns are provided, with a total of six columns 2. The columns 2 are provided with a plurality of fourth air holes at intervals along the Z direction. Seven brackets 3 distributed along the Z direction are provided between the two side edges of the columns 2 arranged along the X direction. There are a total of two columns of battery packs 4, each column of battery packs 4 includes seven battery packs 4, and there are gaps between adjacent battery packs 4 in the Z direction.

[0043] like Figure 1 and Figure 2 As shown, the cabinet 1 is provided with a plurality of air conditioners 5 spaced apart along the Y direction and close to the rear end surface of the battery pack 4, each air conditioner 5 is opposite to a corresponding row of battery packs 4, and the air conditioner 5 includes a first air outlet 501 and a first air inlet 502, as shown in FIG. Figure 3 As shown, an air guide plate 6 is provided between the air conditioner 5 and the rear end surface of the battery pack 4. The air guide plate 6 includes a first connecting plate 601, a second connecting plate 602 and a third connecting plate 603 located at both ends of the first connecting plate 601 and on different surfaces. A partition plate 8 parallel to the second connecting plate 602 is connected to the lower surface of the first connecting plate 601. Both sides and the lower end of the partition plate 8 are in contact with the inner wall of the cabinet 1. Figure 4 As shown, the partition plate 8 is provided with a plurality of second air holes 801 with increasing areas at intervals along the Z direction. In this embodiment, there are a total of six second air holes 801. Figure 3 As shown, a support plate 9 is provided between the partition 8 and the column 2 close to the partition 8, the upper end of the support plate 9 abuts against the first connecting plate 601, and the lower end abuts against the inner wall of the cabinet 1, and the support plate 9 is provided with a plurality of third air holes 901 at intervals along the Z direction. In this embodiment, there are a total of ten third air holes 901.

[0044] In this embodiment, the second connecting plate 602 and the third connecting plate 603 are parallel to each other, and the second connecting plate 602 is provided with a first air hole 604 opposite to the first air outlet 501. Foam is provided between the second connecting plate 602 and the surface of the air conditioner 5 facing the inside of the cabinet 1, and the foam can prevent the second connecting plate 602 from directly fitting with the air conditioner 5, thereby reducing the heat absorbed by the second connecting plate 602. The upper end of the second connecting plate 602 is located between the first air inlet 502 and the first air outlet 501, and there is a gap between the third connecting plate 603 and the rear end surface of the battery pack 4. The upper end of the third connecting plate 603 is provided with an inclined fourth connecting plate 605, and the upper end of the fourth connecting plate 605 abuts against the rear end surface of the battery pack 4 close to the top inner surface of the cabinet 1, and the two sides abut against the inner wall of the cabinet 1.

[0045] like Figure 1 , Figure 4 and Figure 6 As shown, baffles 7 are provided between the upper side edges of the uprights 2 in the X direction, and the baffle 7 located in the middle of the cabinet 1 is provided with a limiting member 10 for limiting the fire protection pipeline on the top of the cabinet 1. In this embodiment, the limiting member 10 is a riding card.

[0046] The first air outlet 501, the air guide plate 6, the side wall of the cabinet 1, and the upper surface of the battery pack 4 near the top inner surface of the cabinet 1 form a first air duct for dissipating heat from the battery pack 4, the honeycomb holes 401, the interior of the battery pack 4 and the fan 402 form a second air duct for dissipating heat from the inside of the battery pack 4, the adjacent baffle 7, the upper surface of the battery pack 4 near the upper inner surface of the cabinet 1, the top inner surface of the cabinet 1, the air guide plate 6, the side wall of the cabinet 1 and the first air inlet 502 form a third air duct for dissipating heat from the inside of the cabinet 1, and the air conditioner 5, the first air duct, the second air duct and the third air duct cooperate to provide circulating airflow for dissipating heat inside the cabinet 1.

[0047] In this embodiment, the third air duct is located above the first air duct and the second air duct, and the first air duct, the second air duct and the third air duct are arranged around the battery pack with the battery pack 4 as the center point, so that the air duct path is short. Compared with the third air duct arranged in an independent space between two rows of battery packs 4, the overall structure of the cabinet 1 of this scheme is compact. There is no large gap between the two rows of battery packs 4 in the cabinet 1 during hoisting, ensuring that the cabinet 1 is subjected to more uniform force during hoisting.

[0048] In this embodiment, the specific flow path of the cold source coming out of the first air outlet 501 of the air conditioner 5 is as follows:

[0049] When the cold source passes through the first air duct, it first flows to the space enclosed by the second connecting plate 602, the first connecting plate 601, the partition 8 and the side wall of the cabinet, and then flows to the outer surface of the battery pack 4 through the second air hole 801 on the partition 8. Due to the air guide plate 6, the upper surface of the battery pack 4 close to the inner surface of the top of the cabinet, and multiple baffles 7, the first air duct and the third air duct are only connected in one direction. At this time, the cold source is always in the first air duct. Then, part of the cold source flows to the front end surface of the battery pack 4 and the front end surface of the cabinet 1 through the gap between the battery packs 4 adjacent in the Z direction. Part of the cold source passes through the second air duct. When the cold source passes through the second air duct, it first enters the battery pack 4 through the honeycomb hole 401 on the battery pack 4, and then the heat generated by the batteries in the battery pack is discharged through the fan 402. Then the cold source that dissipates heat for the battery pack 4 passes through the third air duct. When the cold source passes through the third air duct, the cold source flows counterclockwise, such as Figure 2 As shown, when the cold source passes through the third air duct, it first flows to the adjacent baffle 7, the upper surface of the battery pack 4 close to the top inner surface of the cabinet 1, and the space enclosed by the top inner surface of the cabinet 1, and then flows to the fourth connecting plate 605, the third connecting plate 603, the first connecting plate 601, the space enclosed by the side wall of the cabinet 1 and the air conditioner 5, and returns to the air conditioner 5 through the first air inlet 502, thereby providing circulating airflow for the interior of the cabinet 1 and the battery pack to dissipate heat.

[0050] An outdoor air-cooled energy storage cabinet includes the outdoor air-cooled energy storage cabinet air duct structure described above.

[0051] like Figure 7 and Figure 8As shown, there is a gap for placing components between the front end of the side of the cabinet 1 and the column 2 close to the side and the front end of the cabinet 1. Figure 6 As shown, a water fire fighting pipeline 11 is provided between the columns 2 located between two adjacent rows of battery packs 4 and arranged along the X direction. In this embodiment, the lower end of the water fire fighting pipeline 11 is L-shaped and passes through the rear end surface of the cabinet 1 to be connected to the tap water interface, as shown in FIG. Figure 5 and Figure 6 As shown, a first pipeline 1101 and a second pipeline 1102 are provided at the upper end of the water fire fighting pipeline 11, the first pipeline 1101 is arranged along the X direction, the first pipeline 1101 is connected to a first water nozzle 1103 close to the top of the cabinet 1 and located between two adjacent battery packs 4, the second pipeline 1102 is arranged along the X direction and passes through the column 2 close to the front end of the cabinet 1, and a second water nozzle 1104 is provided at one end of the second pipeline 1102 located outside the column 2.

[0052] like Figure 8 As shown, a fire tank 12 is provided between the front end of the side of the cabinet 1 and the column 2 close to the side and the front end of the cabinet 1. Figure 6 As shown, the fire fighting tank 12 is connected to a gas fire fighting pipeline 13 arranged on the top of the cabinet 1, and the gas fire fighting pipeline 13 includes a third pipeline 1301 whose orthographic projection is located between two adjacent columns of battery packs 4, and a fourth pipeline 1302 connected to the third pipeline 1301, the third pipeline 1301 is connected to the baffle 7 through a limiter 10, the third pipeline 1301 is connected to a fifth pipeline 1303 arranged along the Y direction, the fifth pipeline 1303 is connected to a first gas nozzle 1304 close to the top of the cabinet 1 and located on the front side of the front end of the battery pack 4, one end of the fourth pipeline 1302 passes through the first connecting plate 601, and one end of the fourth pipeline 1302 is connected to a second gas nozzle 1305, and the second gas nozzle 1305 is located between the partition 8 and the column 2 close to the partition 8.

[0053] like Fig. 9 As shown, a fire-fighting device 14 is provided on one side of the top of the cabinet 1 close to the front end surface of the cabinet 1 . The fire-fighting device 14 includes a fire detector 1401 , a fire-fighting control box 1402 , and a temperature sensor 1403 .

[0054] Example 2

[0055] Explanation: The energy storage cabinet includes a battery compartment and an electrical compartment. The battery compartment includes multiple groups of battery packs, and the electrical compartment includes a PCS (power conversion system). The electrical compartment is located below the battery compartment.

[0056] This embodiment is basically the same as the first embodiment, except that Figure 10-11As shown, a terminal block 191 is provided at the back of the PCS (power conversion system), and a plurality of L-shaped copper bars 192 are mounted on the terminal block 191. The upper end of the L-shaped copper bar 192 is spaced and parallel to the upper end face of the PCS shell, and the lower end of the L-shaped copper bar 192 is spaced and parallel to the rear end face of the PCS shell; an insulating member 193 is provided between the L-shaped copper bar 192 and the PCS shell, and a clamping plate 195 is fixedly connected to both sides of the insulating member 193. The terminal block 191 is clamped between the two clamping plates 195. A plurality of L-shaped grooves 194 are provided on the insulating member 193, and through holes are provided in the L-shaped grooves 194. The L-shaped copper bars 192 are clamped in the corresponding L-shaped grooves 194, and bolts are passed through the through holes. The bolts fix the L-shaped copper bars 192 on the terminal block 191, and the L-shaped copper bars 192 press the insulating member 193 on the PCS shell.

[0057] In this embodiment, since the space in the electrical compartment 1 is small, directly connecting the PCS through cables will cause excessive bending of the cables. Therefore, an L-shaped copper busbar 192 is used for connection. When installing the L-shaped copper busbar 192, the insulating member 193 is first engaged on the terminal block 191, and then the L-shaped copper busbar 192 is engaged on the L-shaped groove 194 of the insulating member 193. Finally, the L-shaped copper busbar 192 is locked by bolts so that the L-shaped copper busbar 192 presses the insulating member 193 against the PCS housing.

[0058] In this embodiment, an insulating member 193 is provided between the L-shaped copper busbar 192 and the PCS housing for support. The insulating member 193 separates the PCS housing and the copper busbar, and arcing or short circuit is not easy to occur. Since the copper busbar is no longer in a suspended state and due to the limitation of the L-shaped slot, the whole is more stable and not easy to shake. The insulating member 193 is clamped on the original terminal block 191 by using the clamping plate 195, and then the original bolts used to fix the L-shaped copper busbar 192 are used to fix the insulating member 193, and no additional bolts are needed.

[0059] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An outdoor air-cooled energy storage cabinet air duct structure, comprising a cabinet, wherein a plurality of columns are arranged in rows and columns in the cabinet, a plurality of brackets are arranged between the two sides of the columns arranged along the X direction, a battery pack is arranged between two opposite brackets, a plurality of honeycomb holes are arranged on the rear side of the battery pack, and a fan is arranged at the front end, characterized in that: The cabinet is provided with a plurality of air conditioners spaced apart along the Y direction and close to the rear end surface of the battery pack, each of the air conditioners being opposite to a corresponding row of battery packs, the air conditioner comprising a first air outlet and a first air inlet, an air guide plate being arranged between the air conditioner and the rear end surface of the battery pack, the air guide plate comprising a first connecting plate, a second connecting plate and a third connecting plate being located at both ends of the first connecting plate and on different surfaces, the second connecting plate being provided with a first air hole opposite to the first air outlet, the second connecting plate being fitted with the surface of the air conditioner facing the inside of the cabinet, a foam being arranged between the second connecting plate and the surface of the air conditioner facing the inside of the cabinet, the upper end of the second connecting plate being located between the first air inlet and the first air outlet, the third connecting plate being provided with a first air hole opposite to the first air outlet There is a gap between the rear end faces, and the upper end abuts against the rear end face of the battery pack close to the inner surface of the cabinet top; the lower surface of the first connecting plate is connected to a partition parallel to the second connecting plate, and both sides and the lower end of the partition are in contact with the inner wall of the cabinet; the partition is provided with a plurality of second air holes with increasing areas at intervals along the Z direction; a support plate is provided between the partition and the column close to the partition, the upper end of the support plate abuts against the first connecting plate, and the lower end abuts against the inner wall of the cabinet; the support plate is provided with a plurality of third air holes at intervals along the Z direction; the second connecting plate, the first connecting plate, the partition and the cabinet side wall enclose a space for the cold source to stay, and baffles are provided between the upper side edges of the columns in the X direction; The first air outlet, the air guide plate, the side wall of the cabinet, and the upper surface of the battery pack near the inner surface of the cabinet top form a first air duct for dissipating heat from the battery pack; the honeycomb holes, the interior of the battery pack and the fan form a second air duct for dissipating heat from the interior of the battery pack; the adjacent baffle, the upper surface of the battery pack near the inner surface of the upper end of the cabinet, the inner surface of the cabinet top, the air guide plate, the side wall of the cabinet and the first air inlet form a third air duct for dissipating heat from the interior of the cabinet; the air conditioner, the first air duct, the second air duct and the third air duct cooperate to provide circulating airflow inside the cabinet for heat dissipation.

2. The air duct structure of the outdoor air-cooled energy storage cabinet according to claim 1 is characterized in that: A baffle located in the middle of the cabinet is provided with a limiting piece for limiting the position of the fire protection pipeline on the top of the cabinet.

3. The air duct structure of the outdoor air-cooled energy storage cabinet according to claim 1 is characterized in that: An inclined fourth connecting plate is provided on the upper end of the third connecting plate, the upper end of the fourth connecting plate abuts against the rear end surface of the battery pack close to the inner surface of the cabinet top, and the two sides abut against the inner wall of the cabinet.

4. An outdoor air-cooled energy storage cabinet, characterized in that: It includes the air duct structure of the outdoor air-cooled energy storage cabinet as described in any one of claims 1 to 3 above.

5. The outdoor air-cooled energy storage cabinet according to claim 4 is characterized in that: Gaps for placing components are provided between the front end of the cabinet side and the columns close to both the cabinet side and the front end, a water fire fighting pipeline is provided between the columns located between two adjacent rows of battery packs and arranged along the X direction, a first pipeline and a second pipeline are provided at the upper end of the water fire fighting pipeline, the first pipeline is arranged along the X direction, the first pipeline is connected to a first water nozzle close to the top of the cabinet and located between two adjacent battery packs, the second pipeline is arranged along the X direction and passes through the column close to the front end of the cabinet, and a second water nozzle is provided at one end of the second pipeline located outside the column.

6. The outdoor air-cooled energy storage cabinet according to claim 4, characterized in that: A fire fighting tank is provided between the front end of the cabinet side and the columns close to the cabinet side and the front end, the fire fighting tank is connected to a gas fire fighting pipeline arranged on the top of the cabinet, the gas fire fighting pipeline includes a third pipeline whose orthographic projection is located between two adjacent columns of battery packs, and a fourth pipeline connected to the third pipeline, the third pipeline is connected to the baffle through a limiter, the third pipeline is connected to a fifth pipeline arranged along the Y direction, the fifth pipeline is connected to a first gas nozzle close to the top of the cabinet and located on the front side of the battery pack front end, one end of the fourth pipeline passes through the first connecting plate, one end of the fourth pipeline is connected to the second gas nozzle, and the second gas nozzle is located between the partition and the column close to the partition.

7. The outdoor air-cooled energy storage cabinet according to claim 4, characterized in that: A fire-fighting device is arranged on one side of the top of the cabinet body close to the front end surface of the cabinet body. The fire-fighting device comprises a fire detector, a fire-fighting control box and a temperature sensor.

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