Air-cooled uniform-temperature type battery energy storage cabinet

Abstract

The invention discloses an air-cooled uniform-temperature battery energy storage cabinet, which belongs to the technical field of energy storage cabinets, and comprises a cooling frame, an air supply structure, a sealing door, a control assembly, an air guide assembly, a cabinet body, a battery mounting bin and an air volume adjusting assembly, a placement cavity is arranged in the cabinet body, the side edge of the cabinet body is connected with the sealing door in an overturning manner, and the air supply structure is mounted on the inner wall of the sealing door; the cooling frame is installed in the placement cavity, the control assembly is installed on the inner side of the bottom of the cooling frame, the battery installation bins are installed in the cooling frame, the air guide assembly is installed in the cooling frame, the air guide assembly is arranged between the battery installation bins, the air guide assembly is communicated with an air path in the cooling frame, and the air volume adjusting assembly is in transmission connection with the interior of the air guide assembly. The problems that in the prior art, due to the fact that air guide assemblies are manufactured and cannot be used in various energy storage cabinets, the universality is low, and the cost is high are solved. And the universality of the air guide assembly and the practicability of the air volume adjusting assembly are improved.

Description

Technical Field

[0001] This invention relates to the field of energy storage cabinet technology, specifically to an air-cooled, temperature-equalizing battery energy storage cabinet. Background Technology

[0002] For battery storage cabinets, prolonged use will cause the internal temperature to rise. 25°C - 35°C is the optimal operating range for most lithium-ion batteries (such as lithium iron phosphate / LFP and ternary lithium / NMC). If the temperature exceeds this range, the battery management system will activate its protection mechanism, such as shutting down or reducing the operating power. Without a protection mechanism, the battery will age faster and may even experience thermal runaway.

[0003] For existing energy storage cabinets, the cooling solution involves adding two fans: one to extract hot internal air and the other to draw in cold external air. Alternatively, a low-temperature medium such as Freon or a refrigerant can be added before the air is blown into the fans to cool the air and thus lower the internal temperature, allowing the batteries to operate at their optimal temperature. However, the existing structure has certain drawbacks. Since cooling is required for the environment surrounding the batteries, a fan guide assembly is needed to separate the battery packs. This allows for cooling of the environments surrounding both battery packs, enabling rapid cooling of each individual battery. However, adjusting the separation position within the fan guide assembly to ensure that the ambient temperature of each battery pack is essentially the same and to guarantee uniform operating temperature remains a challenge. This is a problem that needs to be solved. The current solution is to use the experience of staff to set baffles in the air guide components to divide the incoming airflow and achieve the above purpose. However, the battery capacity installed in the energy storage cabinet varies, and the installation position of the fan is also different. This means that the air guide components need to be divided according to the actual situation and aligned with the fan position. This leads to a problem: the air guide components need to be remade for each energy storage cabinet, and the made air guide components may not be usable in other energy storage cabinets. This is because if they are placed in other energy storage cabinets, there will be uneven airflow. As a result, one group of battery packs will have too much airflow and the cooling effect will be too good, causing the ambient temperature to be below the optimal operating temperature range, while another group will have too little airflow and the ambient temperature will be above the optimal temperature range.

[0004] Therefore, how to provide an air-cooled, uniformly heated battery energy storage cabinet to solve the structural defects of the air guide components in existing energy storage cabinets is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address this issue, the present invention provides an air-cooled, temperature-equalizing battery energy storage cabinet, which solves the problems of low versatility and high cost in the prior art, where the air guide components are prefabricated and cannot be used in a variety of energy storage cabinets.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses an air-cooled, temperature-equalizing battery energy storage cabinet, comprising: The cabinet has an internal storage cavity, and a closed door is connected to the side of the cabinet by flipping it up. An air supply structure is installed on the inner wall of the closed door, and a fan is installed in the air supply structure. A cooling rack is installed in the placement cavity, and a control component is installed on the inner bottom side of the cooling rack; Several battery mounting compartments are installed in the cooling rack, and the battery mounting compartments are located at the upper end of the control component; An air guide assembly is installed in the cooling rack and is disposed between the battery mounting compartments. The air guide assembly is interconnected with the air duct in the cooling rack. The air volume regulating component is connected in the air guide component.

[0007] In one possible implementation, the cooling rack includes: Mounting blocks, arranged in pairs, are installed in the placement cavity. The interior of each mounting block has a hollow structure, which serves as an air duct. Connection holes are formed on the inner side plate of the mounting block. Some of the connection holes are equipped with heat sinks, and the heat sinks have several round holes. Several first placement racks are installed on the outer surface of the inner side plate of the mounting block, and the battery mounting compartment is installed on two of the first placement racks; The second placement rack is installed on the inner wall of the cabinet panel. The second placement rack is connected to two of the first placement racks. The air supply structure is installed on the second placement rack and the first placement rack. T-shaped pads are installed in pairs on the top of the cabinet bottom plate. The mounting block is installed on the upper end of the T-shaped pad. An exhaust channel is formed between the T-shaped pad, the cabinet bottom plate and the bottom of the mounting block. The exhaust channel is connected to the air duct. A pad is installed on the first placement rack.

[0008] In one possible implementation, the air guiding component includes: The outer casing has an internal air supply channel, and air holes are opened on the periphery of the outer casing. An air guide is installed at one end on one of the air holes, and a sealing strip is installed on the other outer side of the air guide, with the sealing strip abutting against the inner wall of the air supply structure. Air guide plates are arranged in pairs and installed on the inner surfaces of the upper and lower plates of the housing. The upper and lower ends of the air volume adjustment component are drivenly connected to the two air guide plates. Vertical sliding grooves are arranged in pairs and installed in the left and right side plates of the outer casing. The vertical sliding grooves are located on the front and rear sides of the air vent.

[0009] In one possible implementation, the air guide plate has a herringbone structure, consisting of a straight plate and an arc plate, with one end of the two arc plates connected to the end of the straight plate and the other end of the two arc plates connected to the side wall of the outer casing.

[0010] In one possible implementation, the air guide is a funnel-shaped structure.

[0011] In one possible implementation, the airflow regulating component includes: The displacement plate has extension blocks installed on both the left and right sides; The guide vane housing is arranged in pairs and installed on the upper and lower sides of the displacement plate. The guide vane housing is provided with a displacement groove, and the air guide plate is inserted into the guide vane housing. A horizontal slide groove is formed in the displacement plate, and the horizontal slide groove extends to the left and right sides and passes through the extension block; The limiting components are arranged in pairs and are connected in transmission within the horizontal slide groove; A driving component is installed in the displacement plate, and the limiting component is throttledly connected to one side of the driving component; Several sliders are installed on the front and rear sides of the extension block.

[0012] In one possible implementation, the limiting member includes: A movable plate has two arc-shaped elastic top plates connected together installed on its outer surface, and the movable plate and the arc-shaped elastic top plates are integrally formed. A connecting block is fixedly connected to the front end of the movable plate. The connecting block has an internal thread structure, and a portion of the driving component is installed in the connecting block.

[0013] In one possible implementation, the driving component includes: A forward and reverse lead screw is inserted at both ends into the side wall of the displacement plate. The forward and reverse lead screw is provided with two external thread structures with opposite directions of rotation. The connecting block is connected to the forward and reverse lead screw through the internal thread structure and the external thread structure. The first helical gear is sleeved on the forward and reverse lead screw; A drive rod extends out of the front end of the displacement plate at one end and has a knob installed at the end. The other end of the drive rod is connected to a second helical gear, which meshes with the first helical gear. A limit ring is also installed on the drive rod, and the limit ring is located on the side close to the second helical gear.

[0014] In one possible implementation, the side wall of the battery mounting compartment has several irregularly shaped holes for heat dissipation.

[0015] This invention, after the air guide component divides the battery pack into two groups, uses an airflow regulation component to divide the cooling rack's air duct into two parts, thus separating the two air ducts and preventing the airflow from affecting each other. When the battery packs are in use, because each group has a different number of batteries, although each battery may generate the same amount of heat, the heat generated in the two battery packs with different numbers of batteries will be different. According to the ideal gas state, under a temperature difference, since the initial volume is constant, the greater the temperature difference, the greater the pressure difference in the space occupied by the two battery packs. Under the action of this pressure difference, the airflow regulation component will be displaced. Once the airflow regulating component shifts, the volume of the two battery packs will change until they reach equilibrium. This shift changes the component's position within the air guide assembly, thus altering the size of the two air inlets created by the air guide assembly and the airflow regulating component. Because the inlets are positioned differently, the airflow volume varies. This method allows the air guide assembly to be installed anywhere to divide the battery packs, without affecting the heat generated by different battery capacities. It also eliminates the need to re-manufacture the air guide assembly based on the installation location of the air supply structure, significantly reducing costs and ensuring the batteries operate at their optimal temperature. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] Figure 1 A perspective view of the air-cooled uniform temperature battery energy storage cabinet provided by the present invention; Figure 2 A perspective view of the cooling rack provided by the present invention; Figure 3 A perspective view of the mounting block, the second placement frame, and the first placement frame provided by the present invention; Figure 4 Provided by the present invention Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 A perspective view of the air guide assembly provided by the present invention; Figure 6 Provided by the present invention Figure 5 Enlarged view of a section at point B in the middle; Figure 7 A cross-sectional view of the outer casing provided for this invention; Figure 8 A perspective view of the airflow regulating component provided by the present invention; Figure 9 Provided by the present invention Figure 8 Enlarged view of a section at point C; Figure 10 A perspective view of the limiting component provided by the present invention; Figure 11 Provided by the present invention Figure 10 Enlarged view of a section at point D; Figure 12 A cross-sectional view of the air guide assembly and air volume regulating assembly provided by the present invention; In the diagram: 1. Cooling rack; 11. Mounting block; 12. Connecting hole; 13. Second placement rack; 14. First placement rack; 15. Heat sink plate; 16. Pad plate; 17. T-shaped pad; 2. Air supply structure; 3. Enclosed door; 4. Control components; 5. Air guide components; 51. Sealing strip; 52. Air guide component; 53. Air guide plate; 531. Arc plate; 532. Straight plate; 54. Air hole; 55. Outer shell; 56. Vertical slide groove; 6. Cabinet; 7. Battery installation compartment; 8. Air volume adjustment components; 81. Displacement groove; 82. Drive component; 821. Knob; 822. Forward and reverse screw; 823. First helical gear; 824. Second helical gear; 825. Drive rod; 83. Limiting component; 831. Moving plate; 832. Arc-shaped elastic top plate; 833. Connecting block; 84. Extension block; 85. Air guide plate housing; 86. Displacement plate; 87. Slider; 88. Horizontal slide groove. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please refer to Figures 1-12 The present invention will now describe a wind-cooled, temperature-equalizing battery energy storage cabinet, as follows: Figure 1 The device includes a cooling rack 1, an air supply structure 2, a closed door 3, a control component 4, an air guide component 5, a cabinet 6, a battery mounting compartment 7, and an airflow regulating component 8. The cabinet 6 has a placement cavity inside, and the closed door 3 is connected to the side of the cabinet 6 by flipping. The air supply structure 2 is installed on the inner wall of the closed door 3, and a fan is installed in the air supply structure 2. The cooling rack 1 is installed in the placement cavity, and the control component 4 is installed on the inner bottom side of the cooling rack 1. Several battery mounting compartments 7 are installed in the cooling rack 1, and the battery mounting compartments 7 are located on the upper end of the control component 4. The air guide component 5 is installed in the cooling rack 1, and the air guide component 5 is located between the battery mounting compartments 7. The air guide component 5 is interconnected with the air duct in the cooling rack 1, and the airflow regulating component 8 is drivenly connected to the air guide component 5. For the control component 4, there are generally signal collection units and control units. The control unit controls the switching of the battery pack, while the signal collection unit collects the power signal of the battery pack. The sealed structure formed by the closed door 3 and the cabinet 6 is mainly for electromagnetic shielding and preventing leakage when the energy storage cabinet is in operation, and also provides a certain degree of waterproofing. The battery installation compartment 7 is used to place the batteries, and the cooling rack 1 is set up to diffuse the exhaust air to each battery. The two fans in the air supply structure 2 are used to absorb and exhaust the hot air in the cabinet 6, and to draw in the cold air from the outside to cool the batteries.

[0021] In a specific embodiment, such as Figures 2-4The cooling rack 1 includes mounting blocks 11, connecting holes 12, second placement racks 13, first placement racks 14, heat dissipation plates 15, pads 16, and T-shaped pads 17. The mounting blocks 11 are arranged in pairs and installed in the placement cavity. The interior of each mounting block 11 is a hollow structure, serving as an air duct. The connecting holes 12 are located on the inner side plate of the mounting blocks 11. Some of the connecting holes 12 contain heat dissipation plates 15, which have several round holes. Several first placement racks 14 are installed on the outer surface of the inner side plate of the mounting blocks 11. The battery mounting compartment 7 is installed... On two first placement racks 14, a second placement rack 13 is installed on the inner wall of the cabinet 6 panel. The second placement rack 13 is connected to two of the first placement racks 14. An air supply structure 2 is installed on the second placement rack 13 and the first placement rack 14. T-shaped pads 17 are arranged in pairs and installed on the top of the bottom plate of the cabinet 6. An installation block 11 is installed on the upper end of the T-shaped pads 17. An exhaust channel is formed between the T-shaped pads 17, the bottom plate of the cabinet 6 and the bottom of the installation block 11. The exhaust channel is connected to the air duct. A pad plate 16 is installed on the first placement rack 14. The connecting hole 12 is used to exhaust cold air into the air duct and also to exhaust hot air. The first placement rack 14 is used to place the battery installation compartment 7 and the air guide component 5. However, since the air guide component 5 is connected to the cold air inlet, there will be a certain pressure impact. Therefore, it is used in conjunction with the second placement rack 13 to install the air guide component 5. The pad 16 is set to prevent the battery installation compartment 7 from slipping. Not all positions are equipped with heat sink 15. Although the heat sink has a certain dustproof effect, the exhaust volume is small, which will affect the cooling effect. The heat sink 15 is generally suitable for environments with a lot of wind and sand to prevent dust from entering the battery installation compartment 7. If the wind and sand block the opening of the side wall of the battery installation compartment 7, it will affect the heat dissipation effect. The T-shaped pad 17 is used to raise the installation block 11. Because cold air has the characteristic of downward flow, the setting of the exhaust channel allows cold air to enter the entire placement cavity. Since there are gaps between each battery installation compartment 7, this method allows more surfaces of the battery installation compartment 7 to contact the cold air, which can significantly improve the heat dissipation effect.

[0022] In a specific embodiment, such as Figures 5-6 , Figure 12The air guide assembly 5 includes a sealing strip 51, an air guide component 52, an air guide plate 53, an air hole 54, a housing 55, and a vertical slide groove 56. The interior of the housing 55 is an air supply channel. Air holes 54 are opened on the side walls of the housing 55. One end of the air guide component 52 is installed on one of the air holes 54, and the other outer side of the air guide component 52 is equipped with a sealing strip 51. The sealing strip 51 abuts against the inner wall of the air supply structure 2. The air guide plates 53 are arranged in pairs and installed on the inner surfaces of the upper and lower plates of the housing 55. The upper and lower ends of the air volume adjustment assembly 8 are drivenly connected to the two air guide plates 53. The vertical slide grooves 56 are arranged in pairs and installed in the left and right side plates of the housing 55. The vertical slide grooves 56 are located on the front and rear sides of the air hole 54. Using the sealing strip 51, the air guide 52 is completely attached to the cold air outlet of the air supply structure 2. The sealing strip 51 prevents cold air leakage and also prevents hot air from entering, thus ensuring the utilization rate of cold air. The air guide plate 53 is set to guide the airflow direction, allowing the air to enter the air duct for cooling. The air hole 54 is used to allow the air to circulate. The vertical slide 56 is used to cooperate with the slider 87, which enables the vertical movement of the air volume adjustment component 8 and prevents it from tilting during movement.

[0023] In a specific embodiment, such as Figure 7 The air guide plate 53 has a herringbone structure and consists of a straight plate 532 and two curved plates 531. One end of the two curved plates 531 is connected to the end of the straight plate 532, and the other end of the two curved plates 531 is connected to the side wall of the outer casing 55. The herringbone shape is used to better guide the airflow. The advantage of the curved plates 531 is that, compared with the straight plates, in addition to better guiding effect, they can also buffer the impact of the airflow and increase the service life. The air guide plate casing 85 uses a displacement groove 81 to fit together with the air guide plate 53, so as to guide the airflow while preventing air leakage.

[0024] In a specific embodiment, such as Figure 5 The air guide component 52 has a funnel-shaped structure. The funnel-shaped structure is used to receive more air volume and to better guide the airflow.

[0025] In a specific embodiment, such as Figures 8-9 , Figure 12The airflow regulating component 8 includes a displacement groove 81, a driving component 82, a limiting component 83, an extension block 84, a guide plate housing 85, a displacement plate 86, sliders 87, and a horizontal slide 88. Extension blocks 84 are installed on the left and right sides of the displacement plate 86. The guide plate housings 85 are arranged in pairs and installed on the upper and lower sides of the displacement plate 86. The displacement groove 81 is provided in the guide plate housing 85. The air guide plate 53 is inserted in the guide plate housing 85. The horizontal slide 88 is opened in the displacement plate 86. The horizontal slide 88 extends to the left and right sides and passes through the extension block 84. The limiting components 83 are arranged in pairs and are drivenly connected in the horizontal slide 88. The driving component 82 is installed in the displacement plate 86. The limiting component 83 is drivenly connected to one side of the driving component 82. Several sliders 87 are installed on the front and rear sides of the extension block 84. The purpose of the baffle housing 85 and the displacement groove 81 is not only to ensure the stable movement of the airflow regulating component 8, but also to cooperate with the air guide plate 53 to guide the airflow and prevent the airflow from flowing to other places. The driving component 82 is used to drive the limiting component 83 to extend outward, thereby positioning the airflow regulating component 8. The extension block 84 is used to cooperate with the air hole 54, which can limit the movement of the airflow regulating component 8 and prevent the baffle housing 85 from slipping off the air guide plate 53. The displacement plate 86 is used to carry the limiting component 83 for lifting and lowering. The horizontal slide groove 88 is used to allow the limiting component 83 to slide. Through this movement method, the airflow regulating component 8 can be adapted to air ducts of various widths.

[0026] In a specific embodiment, such as Figures 10-11 The limiting component 83 includes a movable plate 831, an arc-shaped elastic top plate 832, and a connecting block 833. Two arc-shaped elastic top plates 832 connected together are installed on the outer surface of the movable plate 831. The movable plate 831 and the arc-shaped elastic top plate 832 are integrally formed. The connecting block 833 is fixedly connected to the front end of the movable plate 831. The connecting block 833 is provided with an internal thread structure. A part of the driving component 82 is installed in the connecting block 833. The movable plate 831 is connected to the horizontal slide rail 88. As for the arc-shaped elastic top plate 832, firstly, its elastic material allows it to deform better against the hollow side wall of the mounting block 11, making it less prone to damage. Utilizing its elasticity, it can also better abut against the side wall. Moreover, its deformability makes it easier to retract. Furthermore, the arc shape reduces the contact area with the hollow side wall of the mounting block 11, resulting in less resistance when the airflow regulating component 8 moves. Secondly, the arc shape can better guide the airflow to flow quickly. The internal thread structure in the connecting block 833 is used to cooperate with the external thread structure on the forward and reverse screw 822, causing the connecting block 833 to translate. Since the connecting block 833 is fixed together with the movable plate 831, the movable plate 831 translates synchronously when the connecting block 833 translates.

[0027] In a specific embodiment, such as Figures 10-11 The driving component 82 includes a knob 821, a forward and reverse screw 822, a first helical gear 823, a second helical gear 824, and a driving rod 825. The two ends of the forward and reverse screw 822 are respectively inserted into the side wall of the displacement plate 86. The forward and reverse screw 822 is provided with two external thread structures with opposite directions of rotation. The connecting block 833 is connected to the forward and reverse screw 822 through the internal thread structure and the external thread structure. The first helical gear 823 is sleeved on the forward and reverse screw 822. One end of the driving rod 825 extends out of the front end of the displacement plate 86 and a knob 821 is installed at the end. The other end of the driving rod 825 is connected to the second helical gear 824. The second helical gear 824 meshes with the first helical gear 823. A limit ring is also installed on the driving rod 825. The limit ring is located on the side close to the second helical gear 824. The knob 821 is used to drive the drive rod 825 to rotate. The rotation of the drive rod 825 will cause the second helical gear 824 to rotate. During the rotation of the second helical gear 824, the second helical gear 824 will rotate. The second helical gear 824 carries the forward and reverse screw 822 to rotate, which in turn causes the connecting block 833 to translate along the forward and reverse screw 822. This reversing drive method allows the limiting member 83 to better abut against the side wall of the hollow structure of the mounting block 11 without retraction. The screw structure will also prevent the limiting member 83 from resetting under the elastic force of the arc-shaped elastic top plate 832 itself.

[0028] In one specific embodiment, the battery mounting compartment 7 has several irregularly shaped holes on its side wall for heat dissipation. The purpose of these irregularly shaped holes is to allow airflow inside the battery mounting compartment 7, thereby cooling the battery. The holes are used because the airflow experiences higher pressure when passing through a small area, making it less likely to become blocked and preventing large particles of impurities from entering, thus avoiding damage to the battery.

[0029] In this invention, to ensure each battery cools down quickly and maintains a consistent operating temperature, dividing the batteries into two battery packs using the air guide assembly 5 is a good choice. However, placing the air guide assembly 5 at the top or bottom of the battery pack presents several problems. First, it makes setting up the air supply structure 2 difficult, and installing the fan challenging. Second, if a single air duct is used, insufficient airflow can lead to the cold air reaching distant batteries losing its cooling effect, resulting in nearby batteries cooling excessively while distant batteries remain uncooled, leading to poor ambient temperatures and impacting performance. Even with separate air ducts, while these problems can be significantly avoided, the increased number of ducts reduces the airflow entering each duct, still failing to achieve optimal cooling. Therefore, dividing the battery packs using the air guide assembly 5 is the best option. The installation position of the air guide component 5 still needs to be adjusted according to the position of the air supply structure 2. At the same time, although the model, performance and stored capacity are the same when the energy storage cabinet is first used, after long-term use, some batteries will eventually age and become unusable. At this time, the heat generated by the battery pack will change, so the same amount of cooling is not needed as at the beginning. Even if the new battery and the damaged battery are of the same model, the performance of the new battery is completely different from that of the old battery. This will cause the heat generated in the battery pack to increase again, exceeding the heat generated before replacement. Therefore, more cold air is needed to cool the battery pack. Therefore, this structure uses the pressure difference between the two battery packs to adjust the displacement of the air volume regulating component 8, thereby adjusting the ambient volume of the two battery packs in real time. That is, by changing the position of the air volume regulating component 8, the size of the two air inlets is changed to change the air volume, thereby achieving more precise temperature control.

[0030] The airflow regulating component 8 is used as follows: after installing the air guide component 5, battery mounting compartment 7, and control component 4 on the cooling rack 1, the knob 821 is rotated, and then the two helical gears drive the reversal, causing the forward and reverse screw 822 to rotate. The rotation of the external thread in the screw causes the connecting block 833 to move along the forward and reverse screw 822 due to its internal thread structure. At this time, the two limiting components 83 move outward, and finally the arc-shaped elastic top plate 832 will abut against the inner wall of the mounting block 11. If the rotation continues, there will be significant resistance because the arc-shaped elastic top plate 832 is already abutting against the hollow side wall of the mounting block 11. At this time, the drive can be stopped. After the drive is completed, to ensure that the limiting components 83 do not shift under the influence of gravity, the arc-shaped elastic top plate 832 is pressed against the wall panel. This pressing force is a positive pressure. According to the formula: , For friction, For positive pressure, Let be the coefficient of friction and be a constant. Therefore, by controlling the normal pressure, the frictional force can be changed. In this structure, under the influence of gravity, the airflow regulating component 8 tends to move downwards. The direction of the frictional force is exactly opposite to gravity. If a suitable normal pressure is applied, and the sliding friction is equal in magnitude to gravity, then the position of the airflow regulating component 8 can be maintained. Furthermore, to ensure that the airflow regulating component 8 can be driven by pressure difference, there are two solutions: one is to make the entire airflow regulating component 8 thinner to reduce its weight; the other is to use lightweight materials such as aluminum alloy or plastic to further reduce its weight. This ensures that the airflow regulating component 8 itself... The gravity is not great, and when the friction is sufficient, the position of the air volume regulating component 8 can be fixed. Moreover, the precise displacement driven by the screw can ensure that the positive pressure is controllable. When the limiting component 83 abuts against the side wall of the hollow structure of the mounting block 11, the limiting component 83 will divide the air duct into upper and lower sections. In this way, the air in the two spaces will not affect each other when air is being introduced or exhausted. After installation, the sealing door 3 is closed, and the battery in the battery installation compartment 7 is started to run through the control component 4. At this time, the air intake fan is not started first, only the exhaust fan is started. It is necessary to let the two battery packs generate a certain amount of heat during operation. Since the number of batteries in the two battery packs is not connected, according to the ideal gas law: , For pressure, It is volume. For the amount of substance, It is the gas constant. For temperature, then because Since the volume remains constant in the initial state, the pressure is directly proportional to the temperature. Higher temperatures result in higher pressure, creating a pressure difference between the two battery packs. This pressure difference causes the airflow regulating component 8 to move. The movement of the airflow regulating component 8 changes the volume of the battery packs, eventually offsetting the pressure difference and stopping its movement, thus maintaining equilibrium. The change in position of the airflow regulating component 8 also changes the size of the two air inlets formed between it and the air guide component 5. These different inlets result in different airflow volumes, which control the cooling effect on the batteries. After adjustment, the intake fan is activated to cool the entire energy storage cabinet battery pack. While the airflow regulating component 8 is moving, the exhaust fan must be running to ensure the ambient temperature does not exceed the threshold, preventing thermal runaway of the batteries.

[0031] When a battery is replaced or a battery is damaged, the heat output changes, which in turn changes the pressure difference. This causes the airflow adjustment component 8 to actively adjust and change the size of the air inlet, thereby dynamically adjusting the airflow to ensure that the battery pack always operates at the optimal ambient temperature.

[0032] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A wind-cooled, temperature-equalizing battery energy storage cabinet, characterized in that, include: The cabinet (6) has a storage cavity inside, and the side of the cabinet (6) is connected to a closed door (3) by flipping. An air supply structure (2) is installed on the inner wall of the closed door (3), and a fan is installed in the air supply structure (2); A cooling rack (1) is installed in the placement cavity, and a control component (4) is installed on the inner side of the bottom of the cooling rack (1). Several battery mounting compartments (7) are installed in the cooling rack (1), and the battery mounting compartments (7) are located on the upper end of the control component (4); An air guide assembly (5) is installed in the cooling rack (1). The air guide assembly (5) is located between the battery mounting compartments (7). The air guide assembly (5) is connected to the air passage in the cooling rack (1). The air volume regulating component (8) is drivenly connected in the air guide component (5).

2. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 1, characterized in that, The cooling rack (1) includes: Mounting blocks (11) are arranged in pairs and installed in the placement cavity. The interior of the mounting block (11) is a hollow structure, which is an air duct. Connection holes (12) are formed on the inner side plate of the mounting block (11), and heat sinks (15) are installed in some of the connection holes (12). The heat sinks (15) have several round holes. A plurality of first placement racks (14) are mounted on the outer surface of the inner side plate of the mounting block (11), and the battery mounting compartment (7) is mounted on two of the first placement racks (14); The second placement rack (13) is installed on the inner wall of the cabinet (6) panel. The second placement rack (13) is connected to two of the first placement racks (14). The air supply structure (2) is installed on the second placement rack (13) and the first placement racks (14). T-shaped pads (17) are installed in pairs on the top of the bottom plate of the cabinet (6). The mounting block (11) is installed on the upper end of the T-shaped pads (17). An exhaust channel is formed between the T-shaped pads (17), the bottom plate of the cabinet (6), and the bottom of the mounting block (11). The exhaust channel is connected to the air duct. A pad (16) is installed on the first placement rack (14).

3. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 1, characterized in that, The air guide assembly (5) includes: The outer shell (55) has an air supply channel inside, and air holes (54) are opened on the side walls of the outer shell (55). An air guide (52) is installed at one end on one of the air holes (54), and a sealing strip (51) is installed on the other side of the air guide (52), the sealing strip (51) abutting against the inner wall of the air supply structure (2); Air guide plates (53) are installed in pairs on the inner surfaces of the upper and lower plates of the outer casing (55), and the upper and lower ends of the air volume regulating component (8) are connected to the two air guide plates (53). Vertical grooves (56) are arranged in pairs and installed in the left and right side plates of the outer shell (55). The vertical grooves (56) are arranged on the front and rear sides of the air hole (54).

4. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 3, characterized in that, The air guide plate (53) has a herringbone structure. The air guide plate (53) is composed of a straight plate (532) and an arc plate (531). One end of the two arc plates (531) is connected to the end of the straight plate (532), and the other end of the two arc plates (531) is connected to the side wall of the outer shell (55).

5. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 3, characterized in that, The air guide (52) has a funnel-shaped structure.

6. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 3, characterized in that, The air volume regulating component (8) includes: The displacement plate (86) has extension blocks (84) installed on its left and right sides. The guide vane housing (85) is arranged in pairs and installed on the upper and lower sides of the displacement plate (86). The guide vane housing (85) is provided with a displacement groove (81), and the air guide plate (53) is inserted into the guide vane housing (85). A horizontal slide (88) is formed in the displacement plate (86), the horizontal slide (88) extends to the left and right sides and passes through the extension block (84). The limiting components (83) are arranged in pairs and are connected in transmission to the horizontal slide (88); A driving component (82) is installed in the displacement plate (86), and a limiting component (83) is throttledly connected to one side of the driving component (82); Several sliders (87) are installed on the front and rear sides of the extension block (84).

7. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 6, characterized in that, The limiting member (83) includes: The movable plate (831) has two arc-shaped elastic top plates (832) connected together on its outer surface. The movable plate (831) and the arc-shaped elastic top plates (832) are integrally formed. A connecting block (833) is fixedly connected to the front end of the movable plate (831). The connecting block (833) is provided with an internal thread structure. A part of the driving component (82) is installed in the connecting block (833).

8. The air-cooled uniform temperature battery energy storage cabinet as described in claim 7, characterized in that, The driving component (82) includes: The forward and reverse screw (822) is inserted into the side wall of the displacement plate (86) at both ends. The forward and reverse screw (822) is provided with two external thread structures with opposite directions. The connecting block (833) is connected to the forward and reverse screw (822) through the internal thread structure and the external thread structure. The first helical gear (823) is sleeved on the forward and reverse lead screw (822); A drive rod (825) extends out of the front end of the displacement plate (86) and has a knob (821) installed at the end. The other end of the drive rod (825) is connected to a second helical gear (824). The second helical gear (824) meshes with the first helical gear (823). A limit ring is also installed on the drive rod (825). The limit ring is located on the side close to the second helical gear (824).

9. The air-cooled, temperature-equalizing battery energy storage cabinet as described in claim 1, characterized in that, The battery mounting compartment (7) has several irregularly shaped holes on its side wall for heat dissipation.

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