An outdoor energy storage device for a photovoltaic power station

Abstract

The present invention relates to the technical field of outdoor energy storage heat dissipation, and particularly to an outdoor energy storage device for a photovoltaic power station. It includes a storage shell, the storage shell is fixedly connected with a fixed shell and a flowing air shell, a battery pack is arranged in the storage shell in a uniformly distributed manner, air outlets are arranged on the flowing air shell in a uniformly distributed manner, exhaust cavities are arranged symmetrically in the storage shell, exhaust openings are arranged at intervals on the exhaust cavities, isolation plates are fixedly connected in the storage shell in a uniformly distributed manner, and the flowing air shell and the uniformly distributed isolation plates divide the storage shell into several chambers. The present invention separates all the battery packs through all the isolation plates and the flowing air shell, reduces the heat transfer between adjacent two battery packs, uses cold air to conduct heat exchange on the whole of the battery packs, improves the heat dissipation effect of the storage shell, cools each battery pack separately, and at the same time ensures the uniform distribution of the temperature in the storage shell.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor energy storage heat dissipation, and particularly relates to an outdoor energy storage device for a photovoltaic power station. Background Art

[0002] A mobile photovoltaic and energy storage integrated machine is an existing outdoor mobile photovoltaic power generation device, which mainly includes a photovoltaic power generation module and an energy storage module. The energy storage module is located below the photovoltaic power generation module and is used to collect the electric energy generated by the photovoltaic power generation module.

[0003] During the actual operation of the mobile photovoltaic and energy storage integrated machine, a large amount of heat is generated during the charge and discharge process of the battery modules inside the energy storage module. Especially in a high-temperature environment or a high-power charge and discharge scenario, the heat will accumulate rapidly, and it will also cause uneven temperature distribution in the energy storage module. At the same time, a large amount of heat is also released during the operation of the photovoltaic power generation module, and this part of the heat will be transferred into the energy storage module, further causing the temperature of the energy storage module to rise. At the same time, due to the different ranges of the heat radiated by the photovoltaic power generation module on the energy storage module, it further causes uneven temperature inside the energy storage module.

[0004] There are air inlets and outlets on the existing energy storage module to facilitate the discharge of internal heat, but the air inlets and outlets are both in fixed positions, and the internal battery modules cannot be fully cooled, which leads to uneven temperature inside the energy storage module. At the same time, it will also exacerbate the thermal stress of some internal parts. In this way, it will not only accelerate battery aging and even lead to thermal runaway, but also seriously affect the safety and service life of the energy storage device. Summary of the Invention

[0005] In order to overcome the disadvantages mentioned in the above background art, the present invention provides an outdoor energy storage device for a photovoltaic power station.

[0006] The technical solution is: an outdoor energy storage device for a photovoltaic power station, including a storage shell, the storage shell is fixedly connected with a fixed shell and a flowing air shell, the fixed shell is fixedly connected with the flowing air shell, a battery group is evenly distributed inside the storage shell, the flowing air shell is provided with evenly distributed air outlets all communicating with the storage shell, symmetrically distributed exhaust cavities are arranged inside the storage shell, the exhaust cavities are provided with spaced-apart exhaust ports all communicating with the storage shell, uniformly distributed partition plates are fixedly connected inside the storage shell, the flowing air shell and the uniformly distributed partition plates divide the storage shell into a number of evenly distributed chambers, and there is only one battery group in each chamber. A wind supply mechanism for exhausting air into the storage shell is arranged on the fixed shell, and a control component with the same number as the air outlets is arranged on the flowing air shell. The control component is used to change the flow area between adjacent air outlets.

[0007] Further, an inclined surface is provided on the lower side of the partition plate, and the inclined surface on the partition plate slopes upward gradually from the side close to the air flow housing to the side close to the corresponding exhaust chamber.

[0008] Further, the control assembly includes:

[0009] A regulating plate, which is slidably connected to the air flow housing, and the regulating plate is used to block the adjacent air outlets;

[0010] A power member, which is installed on the air flow housing, and the power member is used to drive the regulating plate to move, and a first temperature detector is installed at the air outlet.

[0011] Further, air diffusing plates corresponding to the air outlets one by one are fixedly connected to the air flow housing.

[0012] Further, a support frame is fixedly connected to the upper side of the air diffusing plate, and the support frame is fixedly connected to the adjacent battery pack.

[0013] Further, the air supply mechanism includes:

[0014] An air suction housing, which is fixedly connected to one side of the fixed housing, and the air suction housing is fixedly connected and communicated with a mixing cylinder;

[0015] An air outlet housing, which is fixedly connected to the other side of the fixed housing, and the air outlet housing is fixedly connected and communicated with two return cylinders, and connection housings are communicated between the mixing cylinder and the air flow housing and between the return cylinder and the adjacent exhaust chamber.

[0016] Further, it further includes:

[0017] A regulation mechanism, which is arranged on the fixed housing and is used to make the air in the return cylinder flow back into the mixing cylinder. The regulation mechanism includes:

[0018] Two shunt pistons, which are respectively slidably connected in the adjacent return cylinders, and the return cylinders are communicated with the air suction housing;

[0019] A sliding frame, which is slidably connected to the two shunt pistons and is slidably connected to the fixed housing;

[0020] A monitor, which is installed on the fixed housing;

[0021] A first electric push rod, which is installed on the fixed housing, and the telescopic end of the first electric push rod is fixedly connected to the sliding frame.

[0022] Further, it further includes:

[0023] There are two second electric push rods, both of which are installed in the sliding frame. The telescopic end of the second electric push rod is fixedly connected to the adjacent flow-dividing piston, and a second temperature detector is installed in the connection shell.

[0024] Further, flow-dividing strips are fixedly connected to the lower side of the air-dissipating plate at intervals.

[0025] Further, a heat-insulating plate is fixedly connected to the upper side of the isolation plate.

[0026] The beneficial effects produced by the above technical solutions are as follows: In the present invention, all battery packs are partitioned by all the isolation plates and the air-flowing shell, reducing the heat transfer between adjacent two battery packs, and using cold air to perform heat exchange on the whole battery pack, reducing the temperature on the surface of the battery pack, improving the heat dissipation effect of the storage shell, while cooling each battery pack separately and ensuring the uniform distribution of the temperature inside the storage shell.

[0027] In the present invention, the air-dissipating plate is used to guide the hot air entering the storage shell, facilitating the uniform upward flow of the gas, so that the battery pack is evenly cooled by the cold air, thereby improving the cooling effect on the battery pack.

[0028] In the present invention, the position of the flow-dividing piston is adjusted by the first electric push rod, so that a part of the hot air in the connection shell is discharged into the mixing cylinder, combining the hot air and the cold air in the mixing cylinder to preheat the gas entering the storage shell, avoiding the direct cooling of the battery pack by the over-cold gas from the outside, which may cause the temperature of the battery pack to be too low and damage the battery pack.

[0029] In the present invention, the second temperature detector in the connection shell detects the temperature of the cold air entering the storage shell and the hot air discharged from the storage shell, and uses the second electric push rod to finely adjust the position of the flow-dividing piston to change the temperature of the mixed gas in the mixing cylinder, further reducing the damage caused by the cold air to the battery pack. In the present invention, according to the external temperature change, the working power of the fan in the air outlet shell is adjusted, thereby changing the pressure environment of the storage shell. When it is in positive pressure, the amount of external cold air entering the inner cavity of the storage shell through the gaps is effectively reduced, reducing the heat loss, thereby realizing the heat preservation of the storage shell; when it is in negative pressure, the air flow in the cavity is enhanced, promoting the rapid discharge of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0031] Figure 2 is a three-dimensional structure schematic diagram of another perspective of the present invention;

[0032] Figure 3 is a three-dimensional structure sectional view of the storage shell and the fixed shell of the present invention;

[0033] Figure 4 This is a cross-sectional view of the three-dimensional structure of the air-flow shell of the present invention;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the air-diffusing plate, support frame and heat-insulating plate of the present invention;

[0035] Figure 6 This is an exploded view of the three-dimensional structure of the components at the partition plate of the present invention;

[0036] Figure 7 This is a cross-sectional view of the three-dimensional structure of the mixed-flow cylinder and the return-flow cylinder of the present invention;

[0037] Figure 8 This is a schematic diagram of the three-dimensional structure of the second electric push rod of the present invention.

[0038] Reference numerals in the drawings: 1 - storage shell, 2 - fixed shell, 3 - air-flow shell, 4 - battery pack, 5 - air outlet, 6 - exhaust cavity, 7 - exhaust port, 8 - partition plate, 9 - adjusting plate, 10 - power component, 11 - air-diffusing plate, 12 - support frame, 13 - heat-insulating plate, 14 - air-suction shell, 15 - mixed-flow cylinder, 16 - air-outlet shell, 17 - return-flow cylinder, 18 - connection shell, 19 - flow-dividing piston, 20 - sliding frame, 21 - monitor, 22 - first electric push rod, 23 - second electric push rod, 24 - flow-dividing strip. Detailed implementation manners

[0039] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0040] Embodiment 1: An outdoor energy storage device for a photovoltaic power station, as Figures 1-6 shown, includes a storage shell 1, the storage shell 1 is fixedly connected with a fixed shell 2 and an air-flow shell 3, the fixed shell 2 and the air-flow shell 3 are fixedly connected, a battery pack 4 evenly distributed is arranged in the storage shell 1, air outlets 5 evenly distributed and all communicated with the storage shell 1 are arranged on the air-flow shell 3, symmetrically distributed exhaust cavities 6 are arranged in the storage shell 1, exhaust ports 7 spaced apart and all communicated with the storage shell 1 are arranged on the exhaust cavities 6, evenly distributed partition plates 8 are fixedly connected in the storage shell 1, the air-flow shell 3 and the evenly distributed partition plates 8 divide the storage shell 1 into a plurality of evenly distributed chambers, and there is exactly one battery pack 4 in each chamber. A wind supply mechanism for exhausting air into the storage shell 1 is arranged on the fixed shell 2, and a control component with the same number as the air outlets 5 is arranged on the air-flow shell 3. The control component is used to change the flow area between adjacent air outlets 5; an inclined surface is arranged on the lower side of the partition plate 8, and the inclined surface on the partition plate 8 slopes upward gradually from the side close to the air-flow shell 3 to the side close to the corresponding exhaust cavity 6.

[0041] In the above solution, it aims to propose a way to evenly dissipate heat from the battery pack 4 in the storage shell 1; the air flow shell 3 is located in the middle of the storage shell 1, and there are air outlets 5 on both sides of it. The air outlets 5 are located below the adjacent battery packs 4 and below the corresponding chambers in the storage shell 1; a diversion groove is provided on the upper side of the battery pack 4 to facilitate air circulation and accelerate its own heat dissipation; the exhaust cavity 6 is located at the inner walls on both sides of the storage shell 1 for discharging hot air; all the battery packs 4 are partitioned by all the partition plates 8 and the air flow shell 3 to reduce the heat transfer between adjacent two battery packs 4. At the same time, each battery pack 4 is cooled separately, improving the efficiency of cooling the battery pack 4 and ensuring the uniformity of the temperature in the storage shell 1; the partition plate 8 is located below the adjacent air outlets 5 and below the corresponding exhaust vents 7, and the partition plate 8 is located above the corresponding battery pack 4. According to the characteristic that hot air has a low density and moves upward, the inclined surface of the partition plate 8 is used to guide the hot air generated by the battery pack 4 located below it, facilitating the discharge of the hot air into the exhaust cavity 6; a photovoltaic power generation module is installed on the storage shell 1, and the photovoltaic power generation module is electrically connected to the battery pack 4; the exhaust vents 7 are located above the corresponding chambers in the storage shell 1.

[0042] As Figure 4 and Figure 5 shown, the control component includes: an adjustment plate 9, which is slidably connected to the air flow shell 3, and the adjustment plate 9 is used to block the adjacent air outlets 5; a power component 10, which is installed on the air flow shell 3, and the power component 10 is used to drive the adjustment plate 9 to move. A first temperature detector is installed at the air outlet 5.

[0043] In the above solution, a way to control the cold air entering the inner cavity of the storage shell 1 is proposed; the power component 10 is an existing electric slide rail and slider structure, which is used to drive the adjustment plate 9 to move up and down. The first temperature detector at the air outlet 5 is used to detect the temperature of the adjacent chambers in the storage shell 1, facilitating the adjustment of the position of the adjustment plate 9.

[0044] As Figures 3-6 shown, a diffuser plate 11 corresponding to the air outlet 5 is fixedly connected to the air flow shell 3; a support frame 12 is fixedly connected to the upper side of the diffuser plate 11, and the support frame 12 is fixedly connected to the adjacent battery pack 4.

[0045] In the above solution, a way to evenly disperse the gas in the inner cavity of the storage shell 1 is proposed; a number of rows of evenly distributed through holes are provided on the diffuser plate 11. The cold air is guided through all the through holes, facilitating the uniform upward flow of the gas and evenly cooling the battery pack 4 with the cold air; the support frame 12 is used to support the battery pack 4, so that there is a gap between the battery pack 4 and the diffuser plate 11, facilitating the heat dissipation of the bottom of the battery pack 4.

[0046] As Figures 1-3 、 Figure 5 and Figure 7As shown in the figure, the air supply mechanism includes: an air suction housing 14 fixedly connected to one side of the fixed housing 2, and the air suction housing 14 is fixedly connected and communicated with a mixed flow cylinder 15; an air outlet housing 16 fixedly connected to the other side of the fixed housing 2, and the air outlet housing 16 is fixedly connected and communicated with two return flow cylinders 17. A connecting housing 18 is communicated between the mixed flow cylinder 15 and the flowing air housing 3 and between the return flow cylinder 17 and the adjacent exhaust cavity 6.

[0047] In the above solution, a method for introducing external cold air into the storage housing 1 is proposed; a fan (not shown in the figure) is provided in the air suction housing 14 for extracting external cold air, and a filter screen can be provided at the inlet of the air suction housing 14 to intercept external impurities; a fan (not shown in the figure) is also provided in the air outlet housing 16 for extracting the hot air in the storage housing 1.

[0048] Working process: When the device needs to be used, first move the device to the target position and connect all the battery packs 4 to the photovoltaic power generation module. Then, turn on the fan in the air suction housing 14, the fan in the air outlet housing 16, and the first temperature detectors at all the air outlets 5. The fan in the air suction housing 14 extracts external cold air, and the cold air enters the mixed flow cylinder 15 through the air suction housing 14. Then, it enters the flowing air housing 3 through the adjacent connecting housing 18. The cold air in the flowing air housing 3 flows to the left and right sides respectively through the air outlets 5 thereon and enters the adjacent chambers in the storage housing 1.

[0049] After the cold air enters the chamber in the storage housing 1, the cold air moves upward through the air holes in the air dispersion plate 11 and pushes the hot air on the periphery of the battery pack 4 upward. At the same time, the cold air performs heat exchange on the whole battery pack 4, reducing the temperature on the surface of the battery pack 4. By cooling each battery pack 4 separately, the heat dissipation effect of the storage housing 1 is improved, and at the same time, the uniform distribution of the temperature in the storage housing 1 is ensured.

[0050] During the upward movement of the hot air, the hot air flows obliquely upward along the inclined surface of the partition plate 8, facilitating the hot air to enter the exhaust cavity 6 through the adjacent exhaust air outlets 7. At the same time, by using the guiding effect of the inclined surface of the partition plate 8 on the hot air, the accumulation of hot air at the dead corners in the chamber of the storage housing 1 is reduced.

[0051] After the hot air enters the exhaust cavity 6, the hot air flows upward and enters the adjacent connecting housing 18. Then, it enters the air outlet housing 16 through the adjacent return flow cylinder 17. During this process, the fan in the air outlet housing 16 is in working condition and performs negative pressure extraction on the upward moving hot air, facilitating the discharge of the hot air.

[0052] During the process of cold air passing through adjacent air outlets 5, the first temperature detectors at all air outlets 5 detect the temperature in the adjacent chambers of the storage shell 1. If the temperature in a certain chamber is lower than the normal level, the power member 10 at that place drives the adjacent adjusting plate 9 to move upward, so that the adjusting plate 9 blocks the adjacent air outlet 5, reducing the flow area of the air outlet 5, thereby reducing the amount of cold air entering the chamber and ensuring that the temperature in the chamber is stable and normal. On the contrary, if the temperature in the chamber is higher than the normal level, the power member 10 at that place drives the adjacent adjusting plate 9 to move downward, increasing the flow area of the air outlet 5, thereby increasing the amount of cold air entering the chamber and facilitating the cooling operation of the battery pack 4 in the chamber.

[0053] When the device is no longer in use, first, all the power members 10 drive the adjacent adjusting plates 9 to reset respectively. Subsequently, the fans of the air suction shell 14, the fans of the air outlet shell 16, and the first temperature detectors at all air outlets 5 are turned off, ending the use of the device.

[0054] Embodiment 2: On the basis of Embodiment 1, as Figures 1-3 、 Figure 7 and Figure 8 shown, it further includes: a regulation mechanism, arranged on the fixed shell 2, for making the air in the return flow cylinder 17 flow back into the mixing cylinder 15. The regulation mechanism includes: two shunt pistons 19, respectively slidably connected in the adjacent return flow cylinders 17. The return flow cylinders 17 are communicated with the air suction shell 14; a sliding frame 20, slidably connected to the two shunt pistons 19 and slidably connected to the fixed shell 2; a monitor 21, installed on the fixed shell 2; a first electric push rod 22, installed on the fixed shell 2, and the telescopic end of the first electric push rod 22 is fixedly connected to the sliding frame 20.

[0055] In the above solution, a method for recycling the hot air in the return flow cylinder 17 is proposed; a sealing ring is arranged on the periphery of the shunt piston 19 to ensure the seal between the shunt piston 19 and the adjacent return flow cylinder 17. The shunt piston 19 changes the communication state between the air outlet shell 16 and the adjacent connecting shell 18. Initially, the shunt piston 19 is located in front of the communication position between the return flow cylinder 17 and the adjacent connecting shell 18. The connecting shells 18 on the left and right are completely communicated with the air outlet shell 16 through the return flow cylinder 17, that is, the hot air in the storage shell 1 is completely discharged through the air outlet shell 16; the monitor 21 is a temperature detection sensor for monitoring the external environmental temperature; when the telescopic end of the first electric push rod 22 fully extends, the shunt piston 19 cannot completely pass through the communication position between the return flow cylinder 17 and the adjacent connecting shell 18.

[0056] As Figure 7 and Figure 8As shown in the figure, it further includes: two second electric push rods 23, both of which are installed in the sliding frame 20. The telescopic ends of the second electric push rods 23 are fixedly connected to the adjacent shunt pistons 19, and a second temperature detector is installed in the connection shell 18.

[0057] In the above solution, the second temperature detector in the connection shell 18 is used to detect the temperature of the hot air flowing through the connection shell 18, and then judge the temperature after heat dissipation treatment in the storage shell 1.

[0058] Workflow: During the operation of the fan in the air suction shell 14 and the fan in the air outlet shell 16, the monitor 21 is turned on. The monitor 21 monitors the external temperature. If the external temperature is too high (such as in summer), the first electric push rod 22 is not turned on, that is, the shunt piston 19 remains in its initial position, so that the hot air in the storage shell 1 is completely discharged through the air outlet shell 16.

[0059] If the external temperature is too low (such as in winter), the first electric push rod 22 is turned on. The telescopic end of the first electric push rod 22 drives the shunt piston 19 to move backward, so that the shunt piston 19 moves to the connection point between the return flow cylinder 17 and the adjacent connection shell 18. As the temperature gradually decreases, the longer the telescopic end of the first electric push rod 22 extends. According to the temperature change, when the telescopic end of the first electric push rod 22 stops moving, the shunt piston 19 stops moving. Taking the shunt piston 19 being in the middle of the connection point between the return flow cylinder 17 and the adjacent connection shell 18 as an example, at this time, the air suction shell 14 is connected to the corresponding connection shell 18 through the return flow cylinder 17, and the air outlet shell 16 is also connected to the corresponding connection shell 18 through the return flow cylinder 17. The shunt piston 19 shunts the hot air entering the adjacent return flow cylinder 17 from the connection shell 18. The fan in the air outlet shell 16 works normally and extracts part of the hot air in the adjacent connection shell 18 through the return flow cylinder 17. In this way, part of the hot air in the storage shell 1 is discharged to the outside. The fan in the air suction shell 14 works normally and extracts another part of the hot air in the adjacent connection shell 18 through the return flow cylinder 17. The fan in the air suction shell 14 sends the other part of the hot air to the mixing cylinder 15. At the same time, the fan in the air suction shell 14 sucks the external cold air into the mixing cylinder 15, so that the hot air and the cold air in the mixing cylinder 15 are combined with each other. The mixing cylinder 15 discharges the mixed gas into the flow wind shell 3 through the adjacent connection shell 18, and the flow wind shell 3 cools the electrical components in the storage shell 1 according to the flow route in Embodiment 1 for the mixed gas.

[0060] By discharging a part of the hot air in the connection shell 18 into the mixing cylinder 15, the hot air and the cold air in the mixing cylinder 15 are combined, and the hot air is used to heat the cold air to preheat the gas entering the storage shell 1, avoiding the external over-cooled gas directly cooling the battery pack 4, resulting in too low temperature of the battery pack 4, thereby causing damage to the battery pack 4, and at the same time realizing the heat preservation operation of the battery pack 4.

[0061] After the first electric push rod 22 finishes its work, the fans in the air suction housing 14 and the fans in the air outlet housing 16 continue to work. During this process, the second temperature detector in the connection housing 18 detects the temperature of the passing gas. When the temperature difference between the cold air entering the storage housing 1 and the hot air discharged from the storage housing 1 is large, it indicates that the battery pack 4 has been over-cooled (i.e., the temperature of the battery pack 4 is low). At this time, the second electric push rod 23 is activated and drives the adjacent flow dividing piston 19 to move backward. At this time, the position of the flow dividing piston 19 is finely adjusted so that the flow dividing piston 19 moves to the rear of the connection between the return flow cylinder 17 and the adjacent connection housing 18. At this time, the amount of hot air entering the air suction housing 1 from the left and right connection housings 18 is greater than the amount of hot air entering the air outlet housing 1 from the left and right connection housings 18. The amount of hot air entering the mixing cylinder 15 increases, and the temperature of the mixed gas in the mixing cylinder 15 rises, so that the temperature of the gas entering the storage housing 1 increases, thereby reducing the damage caused by the cold air to the battery pack 4.

[0062] When the temperature difference between the cold air entering the storage housing 1 and the hot air discharged from the storage housing 1 is small, it indicates that the battery pack 4 has not been sufficiently cooled. At this time, the second electric push rod 23 is activated and drives the adjacent flow dividing piston 19 to move forward. According to the above reverse operation, the temperature of the gas entering the storage housing 1 drops, so as to ensure sufficient cooling of the battery pack 4.

[0063] During the operation of the fans in the air suction housing 14 and the fans in the air outlet housing 16, if the temperature of the external environment is low, the working power of the fans in the air outlet housing 16 is reduced, so that the amount of hot air extracted by the fans in the air outlet housing 16 is reduced, and then the amount of hot air discharged from the storage housing 1 is reduced, so that the storage housing 1 is in a positive pressure environment. In a positive pressure environment, the amount of external cold air entering the inner cavity of the storage housing 1 through the gaps is effectively reduced, and the heat loss is reduced, so as to realize the heat preservation of the storage housing 1. At the same time, the fans in the air outlet housing 16 are still in the working state to ensure that the gas in the storage housing 1 is still in a flowing state, and to avoid the temperature rise caused by the heat accumulation in the storage housing 1.

[0064] If the temperature of the external environment is high, the working power of the fans in the air outlet housing 16 is increased, so that the amount of hot air extracted by the fans in the air outlet housing 16 is increased, and then the amount of hot air discharged from the storage housing 1 is increased, so that the storage housing 1 is in a negative pressure environment. The negative pressure can enhance the air flow in the cavity and promote the rapid discharge of heat.

[0065] During the operation of the fans in the air suction housing 14 and the fans in the air outlet housing 16, the monitor 21 and the second temperature detector in the connection housing 18 continue to work, and detect the external temperature and the temperature difference between the gas entering and discharging from the storage housing 1, and then adjust the power of the first electric push rod 22, the second electric push rod 23, and the fans in the air suction housing 14 and the fans in the air outlet housing 16 in real time to ensure the heat dissipation effect of the storage housing 1.

[0066] After the use of the device, the first electric push rod 22 and the second electric push rod 23 both return to the initial state, and at the same time, the fans of the air suction housing 14 and the fans of the air outlet housing 16 are both turned off.

[0067] Embodiment 3: On the basis of Embodiment 2, as Figures 4-6 shown, the lower side of the air dispersion plate 11 is fixedly connected with diversion strips 24 distributed at intervals. The diversion strips 24 are located between two adjacent rows of air passing holes of the air dispersion plate 11. The length of the diversion strips 24 in the front-back direction is less than the length of the air dispersion plate 11 in the front-back direction, and is used to intercept the passing gas, so that the gas passes through the front and back sides of the diversion strips 24, facilitating uniform dispersion between the air dispersion plate 11 and the isolation plate 8; the upper side of the isolation plate 8 is fixedly connected with a heat insulation plate 13, and the heat insulation plate 13 is used to isolate the temperature between two adjacent chambers in the storage housing 1, so that the temperatures of two adjacent chambers in the storage housing 1 do not interfere with each other.

[0068] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An outdoor energy storage device for a photovoltaic power station, characterized in that, It includes a storage case (1), to which a fixed case (2) and a flowing air case (3) are fixedly connected. The fixed case (2) is fixedly connected to the flowing air case (3). A battery pack (4) is evenly distributed inside the storage case (1). Air outlets (5) are evenly distributed on the flowing air case (3) and are all communicated with the storage case (1). Symmetrically distributed exhaust cavities (6) are arranged inside the storage case (1). Air outlets (7) are spaced apart and are all communicated with the storage case (1) on the exhaust cavities (6). Evenly distributed partition plates (8) are fixedly connected inside the storage case (1). The flowing air case (3) and the evenly distributed partition plates (8) divide the storage case (1) into several evenly distributed chambers, and there is exactly one battery pack (4) in each chamber. A wind supply mechanism for exhausting air into the storage case (1) is arranged on the fixed case (2). A control component with the same number as the air outlets (5) is arranged on the flowing air case (3), and the control component is used to change the flow area between adjacent air outlets (5); The wind supply mechanism includes: An air suction case (14) is fixedly connected to one side of the fixed case (2), and the air suction case (14) is fixedly connected and communicated with a mixing flow cylinder (15); An air outlet case (16) is fixedly connected to the other side of the fixed case (2). The air outlet case (16) is fixedly connected and communicated with two return flow cylinders (17). A connecting case (18) is communicated between the mixing flow cylinder (15) and the flowing air case (3) and between the return flow cylinder (17) and the adjacent exhaust cavity (6); It also includes: A regulation mechanism is arranged on the fixed case (2) and is used to make the air in the return flow cylinder (17) flow back into the mixing flow cylinder (15). The regulation mechanism includes: There are two shunt pistons (19), which are respectively slidably connected inside the adjacent return flow cylinders (17), and the return flow cylinders (17) are communicated with the air suction case (14); A sliding frame (20) is slidably connected to the two shunt pistons (19) and is slidably connected to the fixed case (2); A monitor (21) is installed on the fixed case (2); A first electric push rod (22) is installed on the fixed case (2), and the telescopic end of the first electric push rod (22) is fixedly connected to the sliding frame (20); It also includes: There are two second electric push rods (23), both of which are installed inside the sliding frame (20). The telescopic ends of the second electric push rods (23) are fixedly connected to the adjacent shunt pistons (19), and a second temperature detector is installed inside the connecting case (18).

2. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that, An inclined surface is arranged on the lower side of the partition plate (8), and the inclined surface on the partition plate (8) gradually slopes upward from the side close to the flowing air case (3) to the side close to the corresponding exhaust cavity (6).

3. An outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that, The control component includes: An adjusting plate (9) is slidably connected to the flowing air case (3), and the adjusting plate (9) is used to block the adjacent air outlets (5); The power component (10) is installed on the air flow housing (3). The power component (10) is used to drive the adjustment plate (9) to move, and a first temperature detector is installed at the air outlet (5).

4. An outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that A diffuser plate (11) corresponding to the air outlet (5) one by one is fixedly connected to the air flow housing (3).

5. An outdoor energy storage device for a photovoltaic power station according to claim 4, characterized in that, A support frame (12) is fixedly connected to the upper side of the diffuser plate (11), and the support frame (12) is fixedly connected to the adjacent battery pack (4).

6. An outdoor energy storage device for a photovoltaic power station according to claim 4, characterized in that, Diverging strips (24) are fixedly connected to the lower side of the diffuser plate (11) and are distributed at intervals.

7. An outdoor energy storage device for a photovoltaic power station according to claim 4, characterized in that, A heat insulation plate (13) is fixedly connected to the upper side of the isolation plate (8).

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