Outdoor energy storage device for photovoltaic power station

Abstract

The invention relates to the technical field of outdoor energy storage and heat dissipation, in particular to an outdoor energy storage device for a photovoltaic power station. Comprising a storage shell, the storage shell is fixedly connected with a fixed shell and a flow air shell, battery packs which are evenly distributed are arranged in the storage shell, air outlets which are evenly distributed are formed in the flow air shell, air exhaust cavities which are symmetrically distributed are formed in the storage shell, and air exhaust outlets which are distributed at intervals are formed in the air exhaust cavities. Isolation plates which are uniformly distributed are fixedly connected in the storage shell, and the storage shell is divided into a plurality of cavities by the flow air shell and the isolation plates which are uniformly distributed. All the battery packs are isolated through all the isolation plates and the flow air shells, heat transfer between every two adjacent battery packs is reduced, cold air is used for conducting heat exchange on the whole battery packs, the heat dissipation effect on the storage shell is improved, meanwhile, each battery pack is independently cooled, and meanwhile it is guaranteed that the temperature in the storage shell is evenly distributed.

Description

Technical Field

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

[0002] The mobile photovoltaic storage integrated machine is an existing outdoor movable photovoltaic power generation equipment, which mainly includes a photovoltaic power generation module and an energy storage module. The energy storage module is located on the lower side of 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 device, the battery module inside the energy storage module will generate a lot of heat during the charging and discharging process. Especially in high temperature environments or high-power charging and discharging scenarios, the heat will accumulate rapidly and cause uneven temperature distribution in the energy storage module. At the same time, the photovoltaic power generation module will also release a lot of heat during operation. This part of heat will be transferred to the energy storage module, further causing the temperature of the energy storage module to rise. At the same time, since the heat of the photovoltaic power generation module is radiated to the energy storage module in different ranges, the temperature inside the energy storage module is further uneven.

[0004] Existing energy storage modules have air inlets and outlets to facilitate the discharge of internal heat, but the air inlets and outlets are in fixed positions and cannot fully dissipate the heat of the internal battery modules, which in turn causes uneven temperatures inside the energy storage module and increases the thermal stress of certain internal parts. This will not only accelerate battery aging and even cause thermal runaway, but in severe cases it will also affect the safety and service life of the energy storage device. Summary of the invention

[0005] In order to overcome the shortcomings mentioned in the above background technology, 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, comprising a storage shell, the storage shell being fixedly connected to a fixed shell and an air flow shell, the fixed shell being fixedly connected to the air flow shell, the storage shell being provided with uniformly distributed battery packs, the air flow shell being provided with uniformly distributed air outlets which are all connected to the storage shell, the storage shell being provided with symmetrically distributed exhaust cavities, the exhaust cavities being provided with exhaust outlets which are distributed at intervals and are all connected to the storage shell, the storage shell being fixedly connected with uniformly distributed isolation plates, the air flow shell and the uniformly distributed isolation plates dividing the storage shell into a plurality of uniformly distributed chambers, and each chamber having and only having one battery pack, the fixed shell being provided with an air supply mechanism for exhausting air into the storage shell, the air flow shell being provided with control components which are the same in number as the air outlets, and the control components being used to change the flow area of ​​adjacent air outlets.

[0007] Furthermore, an inclined surface is provided on the lower side of the isolation plate, and the inclined surface on the isolation plate gradually inclines upward from a side close to the air flow shell to a side close to the corresponding exhaust cavity.

[0008] Furthermore, the control component comprises: An adjustment plate, slidably connected to the air flow housing, the adjustment plate being used to shield the adjacent air outlet; A power piece is installed on the air flow shell, and the power piece is used to drive the adjustment plate to move. A first temperature detector is installed at the air outlet.

[0009] Furthermore, an air dispersion plate corresponding one-to-one to the air outlets is fixedly connected to the air flow shell.

[0010] Furthermore, a support frame is fixedly connected to the upper side of the diffuser plate, and the support frame is fixedly connected to the adjacent battery pack.

[0011] Furthermore, the air supply mechanism comprises: An air suction shell is fixedly connected to one side of the fixed shell, and the air suction shell is fixedly connected to and communicated with a mixing flow cylinder; The air outlet shell is fixedly connected to the other side of the fixed shell. The air outlet shell is fixedly connected to and connected with two return cylinders. A connecting shell is connected between the mixing cylinder and the air flow shell and between the return cylinder and the adjacent exhaust cavity.

[0012] Furthermore, it also includes: A regulating mechanism is provided on the fixed shell and is used to make the air in the reflux cylinder flow back into the mixing cylinder. The regulating mechanism includes: There are two flow dividing pistons, which are respectively slidably connected in adjacent reflux cylinders, and the reflux cylinders are connected to the air suction shell; A sliding frame, slidably connected to the two diverter pistons, and slidably connected to the fixed shell; A monitor, mounted on the fixed shell; The first electric push rod is installed on the fixed shell, and the telescopic end of the first electric push rod is fixedly connected to the sliding frame.

[0013] Furthermore, it also includes: There are two second electric push rods, both of which are installed in the sliding frame. The telescopic ends of the second electric push rods are fixedly connected to the adjacent diverter pistons. A second temperature detector is installed in the connecting shell.

[0014] Furthermore, the lower side of the diffuser plate is fixedly connected with flow divider strips distributed at intervals.

[0015] Furthermore, a heat insulation board is fixedly connected to the upper side of the isolation board.

[0016] The beneficial effects produced by utilizing the above technical solution are as follows: the present invention isolates all battery packs through all isolation plates and air flow shells, reduces the heat transfer between two adjacent battery packs, and utilizes cold air to perform heat exchange on the battery pack as a whole, thereby reducing the temperature of the battery pack surface, improving the heat dissipation effect on the storage shell, and cooling each battery pack individually, while ensuring uniform temperature distribution in the storage shell.

[0017] The present invention guides the hot air entering the storage shell through the air diffuser plate, so that the gas flows evenly upward, and the battery pack is evenly cooled by the cold air, thereby improving the cooling effect of the battery pack.

[0018] The present invention adjusts the position of the diverter piston by means of the first electric push rod, thereby achieving the goal of discharging a portion of the hot gas in the connecting shell into the mixing tube, combining the hot gas and the cold air in the mixing tube, and preheating the gas entering the storage shell, thereby preventing the excessively cold gas from directly cooling the battery pack, causing the temperature of the battery pack to be too low, thereby causing damage to the battery pack.

[0019] The present invention detects the temperature of the cold air entering the storage shell and the hot air discharged from the storage shell by connecting the second temperature detector in the shell, and uses the second electric push rod to fine-tune the position of the diverter piston to change the temperature of the mixed gas in the mixing cylinder, thereby further reducing the damage caused by the cold air to the battery pack. The present invention changes the pressure environment of the storage shell by adjusting the working power of the fan of the air outlet shell according to the temperature change of the outside world. When it is under positive pressure, it effectively reduces the amount of external cold air entering the chamber of the storage shell through the gap, reduces the loss of heat, and thus realizes the insulation of the storage shell; when it is under negative pressure, it enhances the air flow in the cavity and promotes the rapid discharge of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the storage shell and the fixed shell of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the air flow shell of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the air diffuser plate, the support frame and the heat insulation plate of the present invention; Figure 6 It is a three-dimensional structural exploded view of the components at the isolation plate of the present invention; Figure 7 It is a three-dimensional structural cross-sectional view of the mixing tube and the reflux tube of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the second electric push rod of the present invention.

[0021] Figure numbers: 1-storage shell, 2-fixed shell, 3-air flow shell, 4-battery pack, 5-air outlet, 6-exhaust chamber, 7-exhaust outlet, 8-isolation plate, 9-adjustment plate, 10-power part, 11-air dispersion plate, 12-support frame, 13-heat insulation board, 14-air suction shell, 15-mixing cylinder, 16-air outlet shell, 17-reflux cylinder, 18-connecting shell, 19-diverter piston, 20-sliding frame, 21-monitor, 22-first electric push rod, 23-second electric push rod, 24-diverter strip. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0023] Embodiment 1: An outdoor energy storage device for a photovoltaic power station, such as Figure 1-Figure 6 As shown, it includes a storage shell 1, the storage shell 1 is fixedly connected to a fixed shell 2 and an air flow shell 3, the fixed shell 2 is fixedly connected to the air flow shell 3, the storage shell 1 is provided with uniformly distributed battery packs 4, the air flow shell 3 is provided with uniformly distributed air outlets 5 that are connected to the storage shell 1, the storage shell 1 is provided with symmetrically distributed exhaust chambers 6, the exhaust chamber 6 is provided with exhaust outlets 7 that are distributed at intervals and are connected to the storage shell 1, the storage shell 1 is fixedly connected with uniformly distributed isolation plates 8, the air flow shell 3 and the uniformly distributed isolation plates 8 divide the storage shell 1 into a number of uniformly distributed chambers, and each chamber has and only has one battery pack 4, the fixed shell 2 is provided with an air supply mechanism for exhausting air into the storage shell 1, the air flow shell 3 is provided with control components with the same number as the air outlets 5, and the control components are used to change the flow area of ​​adjacent air outlets 5; an inclined surface is provided on the lower side of the isolation plate 8, and the inclined surface on the isolation plate 8 gradually inclines upward from the side close to the air flow shell 3 to the side close to the corresponding exhaust chamber 6.

[0024] In the above scheme, a method for uniformly dissipating heat to the battery pack 4 in the storage shell 1 is proposed; the air flow shell 3 is located in the middle of the storage shell 1, and has air outlets 5 on both sides thereof, and the air outlets 5 are located on the lower side of the adjacent battery pack 4 and the lower side of the corresponding chamber in the storage shell 1; the upper side of the battery pack 4 is provided with a guide groove to facilitate air circulation and accelerate its own heat dissipation; the exhaust cavity 6 is located on the inner wall on both sides of the storage shell 1, and is used to discharge hot air; all the battery packs 4 are isolated by all the isolation plates 8 and the air flow shell 3, so as to reduce the heat transfer between two adjacent battery packs 4, and at the same time, each The battery pack 4 is cooled separately to improve the efficiency of cooling the battery pack 4 and ensure the uniformity of the temperature in the storage shell 1; the isolation plate 8 is located at the lower side of the adjacent air outlet 5 and at the lower side of the corresponding exhaust port 7, and the isolation plate 8 is located at the upper side of the corresponding battery pack 4. According to the characteristics of low density of hot air and upward movement, the inclined surface of the isolation plate 8 is used to guide the hot air generated by the battery pack 4 located at the lower side thereof, so as to facilitate the hot air to be discharged into the exhaust chamber 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 port 7 is located at the upper side of the corresponding chamber in the storage shell 1.

[0025] like Figure 4 and Figure 5 As 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 outlet 5; a power member 10, which is installed on the air flow shell 3, and the power member 10 is used to drive the adjustment plate 9 to move, and a first temperature detector is installed at the air outlet 5.

[0026] In the above scheme, a method for controlling the cold air entering the inner chamber of the storage shell 1 is proposed; the power part 10 is an existing electric slide rail slider structure, which is used to drive the adjustment plate 9 to move up and down, and the first temperature detector of the air outlet 5 is used to detect the temperature of the adjacent chamber in the storage shell 1, so as to facilitate the adjustment of the position of the adjustment plate 9.

[0027] like Figure 3-Figure 6 As shown, the air flow shell 3 is fixedly connected with a diffuser plate 11 corresponding to the air outlets 5 one by one; the upper side of the diffuser plate 11 is fixedly connected with a support frame 12, and the support frame 12 is fixedly connected to the adjacent battery pack 4.

[0028] In the above scheme, a method is proposed to evenly disperse the gas in the inner cavity of the storage shell 1; a plurality of evenly distributed rows of air holes are provided on the air diffusion plate 11, and the cold air is guided through all the air holes to facilitate the uniform upward flow of the gas, so that the battery pack 4 is evenly cooled by 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 air diffusion plate 11, so as to facilitate the heat dissipation of the bottom of the battery pack 4.

[0029] like Figure 1-Figure 3 , Figure 5 and Figure 7As shown, the air supply mechanism includes: an air suction shell 14, which is fixedly connected to one side of the fixed shell 2, and the air suction shell 14 is fixedly connected to and connected with a mixing flow cylinder 15; an air outlet shell 16, which is fixedly connected to the other side of the fixed shell 2, and the air outlet shell 16 is fixedly connected to and connected with two return flow cylinders 17, and a connecting shell 18 is connected between the mixing flow cylinder 15 and the air flow shell 3 and between the return flow cylinder 17 and the adjacent exhaust chamber 6.

[0030] In the above scheme, a method of introducing external cold air into the storage shell 1 is proposed; the air intake shell 14 is provided with a fan (not shown in the figure) for extracting external cold air, and a filter net can be provided at the inlet of the air intake shell 14 to intercept external impurities; the air outlet shell 16 is also provided with a fan (not shown in the figure) for extracting hot air from the storage shell 1.

[0031] Working process: When the device needs to be used, first move the device to the target position, and connect all the battery groups 4 to the photovoltaic power generation module, then turn on the fan of the air suction shell 14, the fan of the air outlet shell 16 and the first temperature detectors at all the air outlets 5, and the fan of the air suction shell 14 draws cold air from the outside, and the cold air enters the mixing tube 15 through the air suction shell 14, and then enters the air flow shell 3 through the adjacent connecting shell 18, and the cold air in the air flow shell 3 flows to the left and right sides through the air outlets 5 thereon, and enters the adjacent chamber on the storage shell 1.

[0032] After the cold air enters the chamber of the storage shell 1, it moves upward through the air holes of the air diffuser plate 11 and pushes the hot air around the battery pack 4 to move upward. At the same time, the cold air performs heat exchange on the entire battery pack 4 to reduce the temperature of the surface of the battery pack 4. By cooling each battery pack 4 individually, the heat dissipation effect of the storage shell 1 is improved, while ensuring the uniform distribution of temperature in the storage shell 1.

[0033] As the hot air moves upward, it flows upward along the inclined surface of the isolation plate 8, which facilitates the hot air to enter the exhaust chamber 6 through the adjacent exhaust port 7. At the same time, the inclined surface of the isolation plate 8 guides the hot air and reduces the accumulation of hot air in the dead corners of the chamber of the storage shell 1.

[0034] After the hot air enters the exhaust chamber 6, it flows upward and enters the adjacent connecting shell 18, and then passes through the adjacent reflux tube 17 into the air outlet shell 16. During this process, the fan in the air outlet shell 16 is in working state, and negative pressure is extracted for the upward moving hot air to facilitate the discharge of the hot air.

[0035] When the cold air passes through the adjacent air outlets 5, the first temperature detectors at all the air outlets 5 detect the temperature in the adjacent chambers of the storage shell 1. If the temperature in a chamber is lower than the normal level, the power component 10 there drives the adjacent adjustment plate 9 to move upward, so that the adjustment plate 9 blocks the adjacent air outlet 5, and reduces 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. Conversely, if the temperature in the chamber is higher than the normal level, the power component 10 there drives the adjacent adjustment plate 9 to move downward, increasing the flow area of ​​the air outlet 5, thereby increasing the amount of cold air entering the chamber, facilitating the cooling operation of the battery pack 4 in the chamber.

[0036] When the device is stopped, the adjacent adjustment plates 9 are first driven to reset by all the power parts 10, and then the fan of the air suction shell 14, the fan of the air outlet shell 16 and the first temperature detectors at all the air outlets 5 are turned off to end the use of the device.

[0037] Embodiment 2: Based on embodiment 1, Figure 1-Figure 3 , Figure 7 and Figure 8 As shown, it also includes: a regulating mechanism, which is arranged on the fixed shell 2, and is used to make the air in the reflux cylinder 17 reflux into the mixing cylinder 15, and the regulating mechanism includes: a diverter piston 19, which has two, and is respectively slidably connected in adjacent reflux cylinders 17, and the reflux cylinder 17 is connected to the suction shell 14; a sliding frame 20, which is slidably connected to the two diverter pistons 19 and is slidably connected to the fixed shell 2; a monitor 21, which is installed on the fixed shell 2; a first electric push rod 22, which is 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.

[0038] In the above scheme, a method for recycling the hot air in the reflux cylinder 17 is proposed; a sealing ring is arranged on the peripheral side of the diverter piston 19 to ensure the seal between the diverter piston 19 and the adjacent reflux cylinder 17, and the diverter piston 19 changes the connection state between the air outlet shell 16 and the adjacent connecting shell 18. Initially, the diverter piston 19 is located at the front side of the connection between the reflux cylinder 17 and the adjacent connecting shell 18, and the connecting shells 18 on the left and right sides are completely connected with the air outlet shell 16 through the reflux 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 ambient temperature; when the telescopic end of the first electric push rod 22 is fully extended, the diverter piston 19 cannot completely pass through the connection between the reflux cylinder 17 and the adjacent connecting shell 18.

[0039] like Figure 7 and Figure 8As shown, it also includes: two second electric push rods 23, both installed in the sliding frame 20, the telescopic ends of the second electric push rods 23 are fixedly connected to the adjacent diverter piston 19, and a second temperature detector is installed in the connecting shell 18.

[0040] 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 determine the temperature after the heat dissipation treatment in the storage shell 1.

[0041] Working process: When the fans of the air suction shell 14 and the air outlet shell 16 are in operation, the monitor 21 is turned on to monitor the outside temperature. If the outside temperature is too high (for example, summer temperature), the first electric push rod 22 is not turned on, that is, the diverter piston 19 maintains its initial position, so that the hot air in the storage shell 1 is completely discharged through the air outlet shell 16.

[0042] If the outside temperature is too low (for example, in winter), the first electric push rod 22 is turned on, and the telescopic end of the first electric push rod 22 drives the diverter piston 19 to move backward, so that the diverter piston 19 moves to the connection point between the return tube 17 and the adjacent connecting shell 18. As the temperature gradually decreases, the telescopic end of the first electric push rod 22 extends longer. According to the change in temperature, when the telescopic end of the first electric push rod 22 stops moving, the diverter piston 19 stops moving. The following takes the diverter piston 19 located in the middle of the connection point between the return tube 17 and the adjacent connecting shell 18 as an example. At this time, the air suction shell 14 is connected to the corresponding connecting shell 18 through the return tube 17, and the air outlet shell 16 is also connected to the corresponding connecting shell 18 through the return tube 17. The diverter piston 19 is connected to the air entering from the connecting shell 18. The hot air entering the adjacent reflux cylinder 17 is diverted, the fan of the air outlet shell 16 works normally and extracts part of the hot air in the adjacent connecting shell 18 through the reflux cylinder 17, so that part of the hot air in the storage shell 1 is discharged outward, the fan of the air suction shell 14 works normally and extracts another part of the hot air in the adjacent connecting shell 18 through the reflux cylinder 17, the fan of the air suction shell 14 pumps the other part of the hot air into the mixing cylinder 15, and at the same time, the fan of the air suction shell 14 draws the external cold air into the mixing cylinder 15, so that the hot air and cold air in the mixing cylinder 15 are combined with each other, the mixing cylinder 15 discharges the mixed gas into the flow shell 3 through the adjacent connecting shell 18, and the flow shell 3 cools the electrical components in the storage shell 1 with the mixed gas according to the flow route of Example 1.

[0043] By discharging a portion of the hot air in the connecting shell 18 into the mixing tube 15, the hot air and cold air in the mixing tube 15 are combined, and the hot air is used to heat the cold air, so as to preheat the gas entering the storage shell 1, thereby preventing the excessively cold gas from directly cooling the battery pack 4, causing the temperature of the battery pack 4 to be too low, thereby causing damage to the battery pack 4, and at the same time achieving the heat preservation operation of the battery pack 4.

[0044] After the first electric push rod 22 completes its work, the fans of the air suction shell 14 and the air outlet shell 16 continue to work. During this process, the second temperature detector in the connecting shell 18 detects the temperature of the passing gas. When the temperature difference between the cold air entering the storage shell 1 and the hot air discharged from the storage shell 1 is large, it indicates that the battery pack 4 is excessively cooled (i.e., the temperature of the battery pack 4 is low). At this time, the second electric push rod 23 is opened and drives the adjacent diverter piston 19 to move backward. At this time, the position of the diverter piston 19 is fine-tuned to move the diverter piston 19 to the rear of the connection between the reflux cylinder 17 and the adjacent connecting shell 18. At this time, the amount of hot air in the connecting shells 18 on the left and right sides entering the air suction shell 14 is greater than the amount of hot air in the connecting shells 18 on the left and right sides entering the air outlet shell 16. The amount of hot air entering the mixing cylinder 15 increases, and the temperature of the mixed gas in the mixing cylinder 15 increases, which increases the temperature of the gas entering the storage shell 1, thereby reducing the damage to the battery pack 4 caused by the cold air.

[0045] When the temperature difference between the cold air entering the storage shell 1 and the hot air discharged from the storage shell 1 is small, it means that the battery pack 4 is not sufficiently cooled. At this time, the second electric push rod 23 is turned on and drives the adjacent diverter piston 19 to move forward. According to the above-mentioned reverse operation, the temperature of the gas entering the storage shell 1 is reduced, thereby ensuring that the battery pack 4 is sufficiently cooled.

[0046] During the operation of the fans of the air intake shell 14 and the air outlet shell 16, if the temperature of the external environment is low, the operating power of the fan of the air outlet shell 16 is reduced to reduce the amount of hot air extracted by the fan of the air outlet shell 16, thereby reducing the amount of hot air discharged by the storage shell 1, so that the storage shell 1 is in a positive pressure environment. In the positive pressure environment, the amount of external cold air entering the inner chamber of the storage shell 1 through the gap is effectively reduced, and the heat loss is reduced, thereby achieving heat preservation of the storage shell 1. At the same time, the fan of the air outlet shell 16 is still in working state, ensuring that the gas in the storage shell 1 is still in a flowing state, avoiding heat accumulation in the storage shell 1 and causing temperature increase.

[0047] If the temperature of the external environment is high, the working power of the fan of the air outlet shell 16 is increased to increase the amount of hot air extracted by the fan of the air outlet shell 16, thereby increasing the amount of hot air discharged by the storage shell 1, so that the storage shell 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.

[0048] During the operation of the fans of the air intake shell 14 and the air outlet shell 16, the monitor 21 and the second temperature detector in the connecting shell 18 continue to work, and detect the temperature difference between the outside temperature and the gas entering and being discharged from the storage shell 1, and then adjust the power of the first electric push rod 22, the second electric push rod 23 and the fans of the air intake shell 14 and the air outlet shell 16 in real time to ensure the heat dissipation effect of the storage shell 1.

[0049] After the device is used, the first electric push rod 22 and the second electric push rod 23 are restored to their initial states, and the fans of the air suction housing 14 and the air outlet housing 16 are turned off.

[0050] Embodiment 3: Based on embodiment 2, Figure 4-Figure 6 As shown, the lower side of the diffuser plate 11 is fixedly connected with spaced flow dividers 24, which are located between two adjacent rows of air holes of the diffuser plate 11. The length of the flow divider 24 in the front-to-back direction is less than the length of the diffuser plate 11 in the front-to-back direction, and is used to intercept the passing gas, so that the gas passes through the front and rear sides of the flow divider 24, and is convenient for entering the diffuser plate 11 and the isolation plate 8 for uniform dispersion; 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 shell 1, so that the temperatures of the two adjacent chambers in the storage shell 1 do not interfere with each other.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An outdoor energy storage device for a photovoltaic power station, characterized in that: The invention comprises a storage shell (1), the storage shell (1) being fixedly connected to a fixed shell (2) and an air flow shell (3), the fixed shell (2) being fixedly connected to the air flow shell (3), the storage shell (1) being provided with uniformly distributed battery packs (4), the air flow shell (3) being provided with uniformly distributed air outlets (5) which are all in communication with the storage shell (1), the storage shell (1) being provided with symmetrically distributed air exhaust cavities (6), the air exhaust cavities (6) being provided with air exhaust vents (7) which are distributed at intervals and are all in communication with the storage shell (1), The storage shell (1) is fixed with evenly distributed isolation plates (8), the air flow shell (3) and the evenly distributed isolation plates (8) divide the storage shell (1) into a plurality of evenly distributed chambers, and each chamber contains only one battery pack (4), the fixed shell (2) is provided with an air supply mechanism for exhausting air into the storage shell (1), and the air flow shell (3) is provided with control components whose number is the same as the air outlets (5), and the control components are used to change the flow area of ​​adjacent air outlets (5).

2. An outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: An inclined surface is provided on the lower side of the isolation plate (8), and the upper inclined surface of the isolation plate (8) gradually inclines upward from a side close to the air flow shell (3) to a side close to the corresponding air exhaust cavity (6).

3. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The control component comprises: An adjustment plate (9) slidably connected to the air flow shell (3), the adjustment plate (9) being used to shield the adjacent air outlet (5); A power component (10) is mounted 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).

4. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The air flow shell (3) is fixedly connected with an air dispersion plate (11) corresponding one to one with the air outlets (5).

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 air diffusion plate (11), and the support frame (12) is fixedly connected to the adjacent battery pack (4).

6. The outdoor energy storage device for a photovoltaic power station according to claim 1, characterized in that: The air supply mechanism comprises: An air suction shell (14) is fixedly connected to one side of the fixed shell (2), and the air suction shell (14) is fixedly connected to and communicated with a mixing flow cylinder (15); An air outlet shell (16) is fixedly connected to the other side of the fixed shell (2), and the air outlet shell (16) is fixedly connected to and connected to two return cylinders (17). A connecting shell (18) is connected between the mixing cylinder (15) and the air flow shell (3) and between the return cylinder (17) and the adjacent exhaust chamber (6).

7. An outdoor energy storage device for a photovoltaic power station according to claim 6, characterized in that: Also included are: A regulating mechanism is arranged on the fixed shell (2) and is used to make the air in the return cylinder (17) return to the mixing cylinder (15), wherein the regulating mechanism comprises: There are two flow dividing pistons (19), which are respectively slidably connected in adjacent reflux cylinders (17), and the reflux cylinders (17) are connected to the air suction shell (14); A sliding frame (20) is slidably connected to the two diverter pistons (19) and is slidably connected to the fixed housing (2); A monitor (21) mounted on the fixed housing (2); A first electric push rod (22) is mounted on the fixed shell (2), and a telescopic end of the first electric push rod (22) is fixedly connected to the sliding frame (20).

8. An outdoor energy storage device for a photovoltaic power station according to claim 7, characterized in that: Also included are: The second electric push rods (23) are provided with two and are both installed in the sliding frame (20). The telescopic ends of the second electric push rods (23) are fixedly connected to the adjacent diverter pistons (19). A second temperature detector is installed in the connecting shell (18).

9. The outdoor energy storage device for a photovoltaic power station according to claim 4, characterized in that: The lower side of the air diffuser plate (11) is fixedly connected with flow divider strips (24) distributed at intervals.

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

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