Energy storage battery control cabinet and control method thereof

Abstract

The invention discloses an energy storage battery control cabinet and a control method thereof, and aims at solving the problems that an existing energy storage system is low in heat dissipation efficiency and uneven in airflow distribution. The control cabinet comprises a battery cabinet and a built-in heat dissipation plate, the heat dissipation plate is provided with an air inlet and two symmetrical air outlets, and the heat dissipation efficiency is improved by optimizing the internal structure. The heat dissipation plate adopts a multi-cavity design, a baffle is arranged in the heat dissipation plate to divide the heat dissipation plate into an air inlet cavity and an air outlet cavity, an arc-shaped air deflector is arranged to form a uniform airflow path, and local overheating is prevented. In addition, the air collection assembly and the air exhaust assembly work cooperatively, hot air is effectively collected and exhausted, and the heat exhaust efficiency is improved. The design of the drainage fan and the moving device ensures smooth flowing of air flow and accurate butt joint between components, and the stability and safety of the system are enhanced. The design obviously improves the heat dissipation performance, prolongs the service life of the battery, reduces the energy consumption, and is suitable for efficient energy storage application in a modern power system. As a whole, this is an efficient and reliable battery thermal management system solution.

Description

Technical Field

[0001] The present invention relates to an energy storage battery control cabinet and its control method, belonging to the field of energy storage battery cabinets. Background Art

[0002] With the growth of global energy demand and the rapid development of renewable energy, energy storage technology has become an important part of modern power systems. Energy storage systems can effectively balance power supply and demand, improve grid stability, and support the grid connection and consumption of renewable energy. Among them, energy storage batteries, as the core components, the safety and efficiency of their operation directly affect the performance of the entire energy storage system.

[0003] During the operation of an energy storage system, a large amount of heat is generated when the battery is charging and discharging. If the heat dissipation is not timely or uneven, it may cause the battery temperature to be too high, leading to battery attenuation, performance degradation, and even thermal runaway, posing a safety hazard. Therefore, the heat dissipation management of energy storage batteries has become the focus of current research in the technical field.

[0004] Existing energy storage battery control cabinets usually use air cooling or liquid cooling methods for heat dissipation. However, the traditional air-cooled structure has problems such as low heat dissipation efficiency and uneven air flow distribution, resulting in overheating of some batteries and affecting the overall performance of the system. Although the liquid cooling scheme has better heat dissipation effect, the system complexity is high, the cost is high, and the maintenance difficulty is large. Therefore, how to optimize the heat dissipation structure, improve the heat dissipation efficiency of the energy storage battery control cabinet, and ensure the stability and safety of the system are urgent problems to be solved in the current industry.

[0005] In view of the above problems, the present invention proposes an optimized energy storage battery control cabinet and its control method, which adopts an improved heat dissipation structure and air flow guiding design to improve the heat dissipation efficiency and ensure the stability and safety of the battery system during high-power operation. Summary of the Invention

[0006] The purpose of the present invention is to provide an energy storage battery control cabinet and its control method, which can effectively solve the above problems.

[0007] In order to solve the above technical problems, the present invention is realized through the following technical solutions: For an energy storage battery control cabinet, it includes a battery cabinet and a heat dissipation plate arranged in the battery cabinet. An air inlet is provided at the rear end of the heat dissipation plate, and two symmetrically arranged air outlets are provided at the front end; the air inlet is communicated with the inside of the battery cabinet, and the air outlet is communicated with the heat dissipation structure.

[0008] Further: The heat dissipation plate includes a housing, a wind cavity is formed inside the housing, and two baffles are arranged inside the wind cavity. The baffles divide the wind cavity into three chambers; the chambers are an air inlet chamber and air outlet chambers arranged on both sides of the air inlet chamber; the air inlet chamber is communicated with the air inlet, the air outlet chamber is communicated with the air outlet, and ventilation grooves are arranged on the baffles. The ventilation grooves communicate the air inlet chamber and the air outlet chamber.

[0009] Further: A partition is arranged at the middle position inside the air inlet chamber. The partition divides the air inlet chamber into two independent air guiding chambers. A plurality of arc-shaped air guiding plates are arranged inside the air guiding chambers. Equal-distance arc-shaped air guiding grooves are formed between the arc-shaped air guiding plates. Some of the arc-shaped air guiding grooves are communicated with the ventilation grooves.

[0010] Further: The centers of the circles where the arcs of each arc-shaped air guiding plate are located are the same.

[0011] Further: A wind collecting chamber is also arranged at the front end inside the air inlet chamber. Another part of the arc-shaped air guiding grooves are communicated with the wind collecting chamber. An installation groove is arranged on one side of the wind collecting chamber. The installation groove is arranged on the baffle, and a drainage fan is arranged in the installation groove.

[0012] Further: The air inlet is also arranged on the chamber wall of the air outlet chamber.

[0013] Further: The heat dissipation structure is arranged on the air extraction component on the middle cabinet door of the battery cabinet. The air extraction port of the air extraction component is communicated with the air outlet through a wind collecting component; the wind collecting component includes a wind collecting plate installed at the end of the air outlet. The wind collecting plate includes a hollow shell. Two air inlets communicated with the air outlet are arranged at the rear end of the shell. An air outlet is arranged at the front end of the shell. The air outlet is located between the two air inlets. Side suction columns are arranged on both sides of the shell. Side suction ports are arranged at the rear ends of the side suction columns.

[0014] Further: The wind collecting component further includes a moving device docked with the air outlet. The moving device includes a moving plate arranged at the rear end of the air extraction component. A connecting frame corresponding to the air outlet is arranged on the moving plate. The front end of the connecting frame is communicated with the air extraction component, and a flexible pipe is arranged on the connecting frame. The flexible pipe is communicated with the air extraction port.

[0015] Further: The wind collecting component further includes a driving device for pushing the moving device. The driving device includes a cylinder installed on the air extraction component. The piston end of the cylinder is fixed on the moving plate. A plurality of limit columns are installed on the air extraction component. The limit columns penetrate through the moving plate, and limit discs are arranged at the ends of the limit columns.

[0016] Further: The air extraction component includes an air extraction housing, and two air extraction fans are arranged at the front end of the air extraction housing; the air extraction housing is fixed on the cabinet door, and the cabinet door is hinged on the battery cabinet.

[0017] Further: The battery pack is arranged on the heat dissipation plate, and a sliding structure is arranged between the battery pack and the heat dissipation plate. The sliding structure includes sliding grooves opened on the upper and lower end faces of the heat dissipation plate, and slide bars are slidably arranged in the sliding grooves. The slide bars are fixed on the battery pack; And a limiting plate for limiting the sliding of the battery pack is arranged on the side of the heat dissipation plate through an adjusting device. The adjusting device includes a limiting groove arranged on the side of the heat dissipation plate, a screw rod is arranged in the limiting groove, a moving block is threadedly connected to the screw rod, and the moving block is fixedly connected to the limiting plate; One end of the screw rod is provided with a rotating structure. The rotating structure includes a first bevel gear arranged at the end of the screw rod. The first bevel gear meshes with a second bevel gear. The second bevel gear is key-connected to an adjusting rod, and the adjusting rod is vertically arranged on the heat dissipation plate.

[0018] Further, the battery packs and the heat dissipation plates are alternately installed to form a battery cluster. A strengthening frame is arranged on the battery cluster. The strengthening frame includes side frame plates located at the front and rear ends of the battery cluster and a top frame plate arranged on the top of the side frame plates; the side frame plates are composed of vertical plates and support frames arranged between the vertical plates. The support frame is in the shape of a "concave" character, and the support frame is arranged on the heat dissipation plate to provide support force for the support plate.

[0019] A control method for an energy storage battery control cabinet, the method comprising the following steps: Step S1: Close the cabinet door, and adjust the position between the connecting frame and the air outlet of the air collecting plate through the moving device to ensure that the connecting frame is inserted into the air outlet of the air collecting plate; Step S2: Start the air extraction component to introduce external air through the air inlet; Step S3: Guide the cold air introduced through the air inlet to the air inlet cavity through the heat dissipation plate arranged in the battery cabinet; Step S4: Utilize the equidistant arc-shaped air guiding grooves formed by the arc-shaped air guiding plates to uniformly distribute the cold air and enter the air outlet cavity through the ventilation grooves and the air collecting cavity; Step S4: Utilize the air collecting component to collect the hot air discharged from the air outlet cavity into the air collecting plate; Step S5: The hot air collected in the air collecting plate is drawn into the air extraction component and finally sent outside the battery cabinet by the air extraction fan.

[0020] The beneficial effects are as follows: A multi-chamber structure is formed inside the heat dissipation plate, which is divided into an air inlet chamber and an air outlet chamber by baffles. This design can effectively control the air flow path and enhance the heat dissipation effect.

[0021] At the same time, arc-shaped air guiding plates are arranged in the air inlet chamber. The equidistant arc-shaped air guiding grooves formed between these air guiding plates ensure the uniform distribution of air flow, improve the heat dissipation uniformity, and avoid local overheating problems.

[0022] The air inlet chamber is divided into two air guiding chambers by a partition. A wind collecting chamber is arranged at the front end of the air guiding chamber, and a drainage fan is installed to guide the air flow that cannot be directly connected to the ventilation groove into the air outlet chamber for discharge, further improving the air flow efficiency and realizing the function of uniform heat dissipation.

[0023] The moving device (including a moving plate, a connecting frame, and a flexible tube) in the wind collecting component works in coordination with the driving device to ensure the precise docking between the wind collecting component and the air extraction component, improve the sealing performance, ensure the smooth entry of air flow into the air extraction component, and enhance the heat exhaust efficiency.

[0024] The design of the wind collecting plate enables the air flows on both sides to reach the middle air outlet synchronously, and then the collected hot air is introduced into the air extraction component, improving the heat exhaust efficiency, preventing heat accumulation, and optimizing the heat dissipation path.

[0025] At the same time, the design of the side suction columns and side suction ports at both ends of the wind collecting plate not only limits to the main function of the wind collecting plate, but also extends to the space parts on both sides of the battery pack, effectively extracting the heat diffused to the surroundings, reducing the overall temperature inside the battery cabinet, and further enhancing the heat dissipation capacity of the system. Brief Description of the Drawings

[0026] For ease of description, the present invention will be described in detail by the following specific embodiments and accompanying drawings.

[0027] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is an internal structural schematic diagram of the present invention; Figure 3 is a schematic diagram of the cooperation between the heat dissipation plate and the wind collecting plate of the present invention; Figure 4 is a part drawing of the battery cluster of the present invention; Figure 5 is a part drawing of the wind collecting plate of the present invention; Figure 6 is a schematic diagram of the back of the wind collecting plate of the present invention; Figure 7 is a part drawing of the air inlet on the heat dissipation plate of the present invention; Figure 8 is a part drawing of the air outlet on the heat dissipation plate of the present invention; Figure 9It is a schematic diagram of the internal structure of the heat sink of the present invention; Figure 10 A top view of the internal structure of the heat sink of the present invention; Figure 11 It is a parts diagram of the mobile device of the present invention; Figure 12 It is a parts diagram of the driving device of the present invention; Figure 13 It is a schematic diagram of the cooperation between the moving device and the driving device of the present invention; Figure 14 It is a left side view of the battery cluster of the present invention; Figure 15 for Figure 14 Middle partial enlarged picture; Figure 16 This is a schematic diagram of the connection frame and the air outlet of the present invention in a matching state; Figure 17 It is a sliding structure parts diagram of the present invention; Figure 18 for Figure 17 Middle partial enlarged picture; Figure 19 It is the parts diagram of the regulating device of the present invention; Figure 20 for Figure 19 Middle partial enlarged picture; Figure 21 It is a schematic diagram of the rotating structure of the present invention.

[0028] Description of reference numerals: 1. Battery cabinet; 2. Heat sink; 21. Shell; 22. Baffle; 23. Air inlet chamber; 231. Air induction chamber; 232. Curved air guide plate; 233. Curved air guide slot; 234. Air collecting chamber; 235. Air induction fan; 24. Air outlet chamber; 25. Ventilation slot; 26. Partition; 3. Air inlet; 4. Air outlet; 5. Heat dissipation structure; 6. Air extraction component; 61. Air extraction shell; 62. Air extraction fan; 7. Air collecting component; 71. Air collecting plate; 711. Shell; 712. Air inlet; 713. Air outlet; 714. Side suction column; 715. Side suction port; 72. Shift Moving device; 721, moving plate; 722, connecting frame; 723, flexible tube; 73, driving device; 731, cylinder; 732, limiting column; 733, limiting plate; 8, cabinet door; 9, sliding structure; 91, slide groove; 92, slide bar; 10, adjusting device; 101, limiting groove; 102, screw; 103, moving block; 11, rotating structure; 111, first bevel gear; 112, second bevel gear; 113, adjusting rod; 12, reinforcing frame; 121, side frame plate; 122, top frame plate; 123, vertical plate; 124, supporting frame; 13, limiting plate. DETAILED DESCRIPTION

[0029] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] It should be noted that in the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0031] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0032] At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Refer to Figure 1 - 21 This embodiment provides an energy storage battery control cabinet and its control method. Its core feature is to optimize the internal heat dissipation system, improve the heat dissipation efficiency, and ensure the safety and service life of the battery system. Each component will be described in detail below, including its function and the way of mutual cooperation.

[0034] Main components: Refer to Figure 1 ; Battery cabinet 1: A cabinet for installing energy storage battery units (refer to 4, the battery unit is the battery cluster), which plays a role of fixing and protecting.

[0035] Refer to Figure 4 , Heat dissipation plate 2: It is arranged inside the battery cabinet 1 and serves as a wind guiding structure to guide low-temperature air to enter and high-temperature air to discharge; a battery pack is fixed above the heat dissipation plate 2 in this device. The battery pack is used to store and release electric energy and is the core component of the entire energy storage system; the bottom of the battery pack is closely attached to the heat dissipation plate 2 to improve the heat dissipation effect; at the same time, the battery pack and the heat dissipation plate 2 are vertically staggered to form a battery cluster; eight battery packs are arranged in the battery cluster of this application document, and correspondingly, there are eight heat dissipation plates 2.

[0036] The heat dissipation plate 2 in this device is both a fixing structure for the battery pack and a heat dissipation channel for the battery cluster. It is made of a highly thermally conductive metal (such as aluminum alloy or copper) to improve the heat dissipation capacity.

[0037] Regarding the installation method of the battery panel: The battery pack is fixed to the heat dissipation plate 2 by bolts, and at the same time, thermal grease is applied to the contact surface to improve the heat transfer efficiency.

[0038] Refer to Figure 2 , the heat dissipation structure 5: It is installed on the cabinet door 8 to assist air flow, mainly guiding the hot air flow inside the heat dissipation plate 2 and extracting the hot air from the entire battery cabinet 1, playing a heat dissipation function for the battery pack.

[0039] As the core heat dissipation component of the energy storage battery control cabinet, the optimized design of the internal structure of the heat dissipation plate 2 can significantly improve the thermal management efficiency, enhance the heat dissipation performance of the battery cluster, extend the battery life, and ensure the safe and stable operation of the system. The following is a detailed analysis from two aspects: structural composition and technical effects.

[0040] Refer to Figure 7 , Figure 8 , Figure 9 , Figure 10 , the heat dissipation plate 2 adopts a multi-chamber structure, with an internal air chamber formed to control the air flow path and enhance the heat dissipation effect. The heat dissipation plate 2 includes a housing 21. An air chamber is formed inside the housing 21, and two baffles 22 are arranged inside the air chamber. The baffles 22 divide the air chamber into three chambers; the chambers are respectively an air inlet chamber 23 and air outlet chambers 24 arranged on both sides of the air inlet chamber 23; the air inlet chamber 23 is connected to the air inlet 3, the air outlet chamber 24 is connected to the air outlet 4, and ventilation slots 25 are provided on the baffles 22. The ventilation slots 25 connect the air inlet chamber 23 and the air outlet chamber 24.

[0041] For the housing 21 of the heat dissipation plate 2, its function is the main frame, mainly used to form the air chamber structure, and at the same time facilitating the installation of the battery pack. It is made of a highly thermally conductive material (such as aluminum alloy or copper) to improve the heat conduction efficiency.

[0042] The number of baffles 22 is two. Their function is to divide the air chamber into three cavities. The middle cavity is the air inlet chamber 23, which is the external air inlet channel. The air outlet chambers 24 are located on both sides of the air inlet chamber 23, and the air outlet chambers 24 are the channels for discharging the hot air; at the same time, a connected ventilation slot 25 is provided between the air inlet chamber 23 and the air outlet chamber 24. The ventilation slot 25 can be used to direct the gas entering the air inlet chamber 23 to flow to the air outlet chamber 24 and finally be output from the air outlet chamber 24; during this process, the heat generated by the battery pack will be conducted to the heat dissipation plate 2. At this time, the air chamber of the heat dissipation plate 2 is filled with high-temperature air. The flow of the air current can take away the high-temperature air in the air chamber, playing a role in cooling the heat dissipation plate 2 and at the same time achieving the purpose of dissipating heat from the battery pack.

[0043] In the middle part of the air inlet cavity 23 of this device, a partition plate 26 is provided, forming two independent air guiding cavities 231 inside the air inlet cavity 23. One of the air guiding cavities 231 on one side of the partition plate 26 is communicated with the air outlet cavity 24 on the same side, and the other air guiding cavity 231 on the other side is communicated with the other air outlet cavity 24. The purpose is to divide the air flow into two strands by guiding the air flow, and these two air flows flow towards the air outlet cavity 24 on the same side respectively. Such a setting can improve the efficiency of air flow and avoid the occurrence of air flow disorder caused by uneven temperature inside the heat dissipation plate 2. Compared with the structure without the partition plate 26, after installing the partition plate 26, the air flow speed can be increased by 5%-25%, which specifically depends on the distribution of hot air inside the heat dissipation plate 2.

[0044] In the middle position of the air inlet cavity 23, a partition plate 26 is provided. The partition plate 26 divides the air inlet cavity 23 to form two independent air guiding cavities 231. Inside the air guiding cavities 231, a plurality of arc-shaped air guiding plates 232 are provided. Equal-distance arc-shaped air guiding grooves 233 are formed between the arc-shaped air guiding plates 232, and some of the arc-shaped air guiding grooves 233 are communicated with the ventilation grooves 25.

[0045] In order to further regulate the air flow, this device also sets arc-shaped air guiding plates 232, and two adjacent arc-shaped air guiding plates 232 form equal-distance arc-shaped air guiding grooves 233. Since the centers of the circles where the arcs of all the arc-shaped air guiding plates 232 are located are the same, the air flow can form a uniform air flow distribution when flowing through the arc-shaped air guiding grooves 233, improving the heat dissipation uniformity. The arrangement of these arc-shaped air guiding grooves 233 ensures that the cold air can evenly cover the bottom of the entire battery cluster. Normally, the air flow entering from the air inlet 3 will flow along a straight line to the ventilation groove 25, and the space not on this straight line will flow towards this air flow due to the negative pressure formed by this straight line. Compared with the air flow speed of this straight line, the gas flow rate of the gas supplementing into this straight line air flow is slower, especially in the space at the corner position of the air guiding cavity 231. This part of the space is prone to heat accumulation and has a slow flow rate, making it difficult to achieve uniform heat dissipation.

[0046] Therefore, in order to achieve uniform heat dissipation in the entire air guiding cavity 231, this device sets arc-shaped air guiding plates 232. The arc-shaped air guiding grooves 233 formed by the arc-shaped air guiding plates 232 can limit the path from the air inlet 3 to the ventilation groove 25 and make this path cover the entire air guiding cavity 231, so that uniform heat dissipation can be achieved in the entire air guiding cavity 231.

[0047] However, if the arc-shaped air guide groove 233 is to cover the entire air guiding cavity 231 of the cloth, since the cavity structure of the air guiding cavity 231 is restricted by the air inlet cavity 23, the cavity structure of the air inlet cavity 23 is restricted by the heat dissipation plate 2, and at the same time the structure of the heat dissipation plate 2 is restricted by the battery pack; therefore, making the arc-shaped air guide groove 233 cover the entire air guiding cavity 231 of the cloth requires following the size of the battery pack, but the applicant found that half of the arc-shaped air guide groove 233 formed in this way cannot be connected to the ventilation groove 25; to solve this situation, this application document makes new improvements to the air guiding cavity 231.

[0048] A wind collecting cavity 234 is added to the air guiding cavity 231, and the wind collecting cavity 234 is arranged at the front end of the air guiding cavity 231; the arc-shaped air guide groove 233 that cannot be connected to the ventilation groove 25 on one side is directly connected to the wind collecting cavity 234; when the cold air flow enters the air guiding cavity 231, a part of the cold air flows through the ventilation groove 25 directly into the air outlet cavity 24 along one half of the arc-shaped air guide groove 233, and the other part of the cooling air flows directly into the wind collecting cavity 234 along the other half of the arc-shaped air guide groove 233, and then an installation groove is provided on one side of the wind collecting cavity 234, and the installation groove directly communicates the wind collecting cavity 234 and the air outlet cavity 24, and a drainage fan 235 is installed in the installation groove. At this time, when the drainage fan 235 is started, the hot air in the wind collecting cavity 234 can be directly blown towards the air outlet cavity 24. With such a setting, this part of the gas can be guided into the air outlet cavity 24.

[0049] In summary, the heat dissipation plate 2 in this device mainly adopts a passive air duct design, supplemented by partial active heat dissipation, guides the direction of air flow, and relies on the optimization of the air flow path to improve the heat dissipation capacity.

[0050] It can prevent the battery from experiencing thermal runaway due to local overheating and improve the safety of the system. By optimizing the air flow path, the temperature fluctuation of the battery is reduced, and the influence of thermal expansion stress on the battery life is reduced.

[0051] The heat dissipation plate 2 adopts a design of multi-cavity structure + optimized air flow path + active auxiliary heat dissipation, which greatly improves the heat dissipation efficiency of the energy storage battery, ensures that the system can maintain stable operation during high-power output or long-term operation. At the same time, it optimizes the air flow uniformity, reduces local overheating, improves the battery life, and reduces the system energy consumption. It is an efficient and reliable battery thermal management solution.

[0052] Regarding how the air flow in the heat dissipation plate 2 flows, the main method is that the air extraction component 6 is connected to the air outlet 4 position of the heat dissipation plate 2. When the air extraction component 6 is turned on, an air flow can be formed to extract the hot air in the heat dissipation plate 2. At the same time, a wind collecting component 7 is also arranged between the air extraction component 6 and the heat dissipation plate 2. As a key heat dissipation component of the energy storage battery control cabinet, the wind collecting component 7 is mainly used to collect the hot air after the battery cluster is cooled and effectively introduce it into the air extraction component 6 to improve the heat dissipation efficiency, prevent heat accumulation, and optimize the heat dissipation path. The following is a detailed analysis from aspects such as its structural design, core function, and technical effects.

[0053] Refer to Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 , the wind collecting component 7 is located in the battery cabinet 1, close to the air outlet 4, and is used to collect the hot air discharged from the heat dissipation plate 2 and efficiently introduce it into the air extraction component 6, thereby improving the overall heat dissipation efficiency. Its structure mainly includes: The wind collecting plate 71, as the main load-bearing structure, is used to integrate the air flow and improve the wind collecting effect. The housing 711 forms the outer shell of the wind collecting plate 71, and the inside of the housing 711 is hollow, providing a flow channel for the air flow.

[0054] At the same time, two air inlets 712 are arranged on the housing 711, respectively located at the rear end of the housing 711, and are connected to the air outlet 4 to guide the hot air into the inside of the wind collecting plate.

[0055] An air outlet 713 is arranged on the housing 711, located at the center of the front end of the housing 711. The air flows drawn from the two air outlets 4 converge towards the air outlet 713 in the middle, which can make the air flows on both sides reach the air outlet 713 in the middle synchronously, and then introduce the collected hot air into the air extraction component 6 to improve the heat dissipation efficiency.

[0056] There are two side suction columns 714 provided on the housing 711, located on both sides of the housing 711, and side suction ports 715 are provided on the side suction columns 714; side suction ports 715 are also provided on the side suction columns 714 in this device; actually, the side suction columns 714 are not connected to the air outlet 4. On the contrary, the side suction columns 714 are equivalent to the extended parts of the housing 711, extending to the space parts on both sides of the battery pack; when the battery pack generates heat, the heat does not only diffuse upward and downward, but also diffuses around. The heat diffusing around will cause the temperature inside the battery cabinet 1 to rise. Therefore, in order to reduce the temperature inside the battery cabinet 1, the hot air inside the battery cabinet 1 needs to be exhausted. The side suction columns 714 in this application document can perform such a function; specifically, when in use, it actually shares the same air extraction component 6 with the heat extraction inside the heat dissipation plate 2. When the air extraction component 6 is turned on, the air flow will also enter the side suction columns 714 from the side suction ports 715, then enter the cavity inside the housing 711, and finally the hot air located inside the battery cabinet 1 is exhausted by the air extraction component 6, completing the temperature reduction work inside the battery cabinet 1.

[0057] At the same time, the side suction ports 715 are arranged in a bilateral symmetric manner, which can balance the air flow on both sides and prevent uneven flow caused by excessive air suction in a single direction.

[0058] The air collecting component 7 further includes a moving device 72 connected to the air outlet 713. The moving device 72 includes a moving plate 721 arranged at the rear end of the air extraction component 6. A connecting frame 722 corresponding to the air outlet 713 is arranged on the moving plate 721. The front end of the connecting frame 722 is communicated with the air extraction component 6, and a flexible pipe 723 is arranged on the connecting frame 722. The flexible pipe 723 is communicated with the air extraction port.

[0059] In this patent, the moving device 72 is mainly used to adjust the relative position with the air collecting component 7, so that the air collecting component 7 can be more efficiently connected to the air extraction component 6, thereby optimizing the collection and discharge of hot air and improving the heat dissipation efficiency.

[0060] Refer to Figure 15 、 Figure 16 , because the air extraction component 6 is arranged on the cabinet door 8 of the battery cabinet 1. When the cabinet door 8 is opened and closed, it will cause the movement of the position of the air extraction component 6, thus causing the air extraction component 6 to be separated from the air collecting plate 71. However, in order for the air extraction component 6 to be connected to the air collecting plate 71 during operation, it is necessary to set up the moving device 72 to control the moving plate 721 to drive the connecting frame 722 to move, so that the connecting frame 722 can be inserted into the air outlet 713 on the air collecting plate 71.

[0061] The moving device 72 is mainly composed of the following structures: The moving plate 721 is the main body structure of the moving device, which bears and pushes the connecting frame 722 to be connected to the air outlet 713.

[0062] The connecting frame 722 is fixed on the moving plate 721 to ensure that the air collecting assembly 7 can be docked with the air extraction assembly 6, improving the sealing performance and preventing air leakage.

[0063] One end of the flexible tube 723 is connected to the air extraction port of the air extraction assembly 6, and the other end is communicated with the connecting frame 722. When the moving device 72 drives the connecting frame 722 to move, the flexible tube 723 will elongate. When the connecting frame 722 is inserted into the air outlet 713, the hot air in the air outlet 713 can enter the air extraction port of the air extraction assembly 6 through the connecting frame 722 and the flexible tube 723. Therefore, the function of the flexible tube 723 is to ensure the smooth flow of air into the air extraction assembly 6 when the connecting frame 722 moves and docks with the air outlet 713.

[0064] In addition, the air collecting assembly 7 further includes a driving device 73 that pushes the moving device 72. The driving device 73 includes a cylinder 731 installed on the air extraction assembly 6. The piston end of the cylinder 731 is fixed on the moving plate 721, and a number of limit posts 732 are installed on the air extraction assembly 6. The limit posts 732 penetrate through the moving plate 721, and a limit disk 733 is provided at the end of the limit posts 732.

[0065] When the cabinet door 8 is closed, there is a certain distance between the connecting frame 722 on the moving plate 721 and the air outlet 713 on the air collecting plate 71. This distance is a reserved space for opening the cabinet door 8 hinged on the battery cabinet 1, facilitating the smooth opening of the cabinet door 8 without being affected by the air collecting plate 71. However, in order to enable the air extraction assembly 6 to extract the hot air in the air collecting plate 71, it is necessary to activate the driving device 73 to control the docking of the moving plate 721 with the air outlet 713. The specific operation is to start the four cylinders 731 distributed on the air extraction assembly 6. The pistons of the cylinders 731 simultaneously push the moving plate 721. At this time, the moving plate 721 moves towards the air outlet 713 of the air collecting plate 71 under the restriction of multiple limit posts 732 and finally inserts into the air outlet 713 to complete the docking.

[0066] The inner part of the air outlet 713 in this device is a wedge-shaped structure, and the external structure of the connecting frame 722 matches the inner part of the air outlet 713. This is mainly to facilitate the tight insertion of the connecting frame 722 into the air outlet 713. However, in order to prevent the connecting frame 722 from being inserted too deeply and damaging the air outlet 713, this device also sets a limit disk 733, which can limit the moving distance of the moving plate 721, thereby limiting the insertion depth of the connecting frame 722 into the air outlet 713.

[0067] For the air extraction component 6 in this device, the device includes an air extraction housing 61, and two air extraction fans 62 are arranged at the front end of the air extraction housing 61; the air extraction housing 61 is fixed on the cabinet door 8, and the cabinet door 8 is hinged on the battery cabinet 1; two circular grooves are arranged on the cabinet door 8, and the output ends of the air extraction fans 62 are aligned with the two circular grooves. When the air extraction fans 62 are turned on, the hot air in the battery cabinet 1 and the heat dissipation plate 2 can be extracted.

[0068] The air inlet 3 is also arranged on the cavity wall of the air outlet cavity 24. Therefore, at this time, the air inlet 3 is not only communicated with the air inlet cavity 23, but also communicated with the air outlet cavity 24. At the same time, the air inlet 3 and the air outlet 4 on the air outlet cavity 24 are groove-shaped holes and are arranged correspondingly; the air flow can enter the air outlet cavity 24 through the groove-shaped holes located on the air outlet cavity 24, which is a supplementary structure for improving the heat dissipation efficiency of the air outlet cavity 24.

[0069] Refer to Figure 17 、 Figure 18 ; The battery pack is arranged on the heat dissipation plate 2, and a sliding structure 9 is arranged between the battery pack and the heat dissipation plate 2. The sliding structure 9 includes sliding grooves 91 opened on the upper and lower end faces of the heat dissipation plate 2, and slide bars 92 are slidably arranged in the sliding grooves 91. The slide bars 92 are fixed on the battery pack; Since there are differences in each battery pack, after the battery packs of this device are used for a period of time, the conditions of each battery pack will be different. Some battery packs may need to be replaced separately; when replacing, the battery pack to be replaced can be separately pulled out through the sliding structure 9 arranged in this device; specifically, when pulling, it can be sucked on the side of the battery pack through a suction cup, and then the battery pack is pulled. At this time, the slide bars 92 on the battery pack will slide in the sliding grooves 91 on the heat dissipation plate 2.

[0070] Refer to Figure 19 、 Figure 20 ; However, in order to ensure that the battery packs do not slide when the entire battery cluster is in normal use, an adjusting device 10 is arranged in this device, and the limiting plate 13 in the adjusting device 10 is used to limit the lateral position of the battery pack; when the battery pack needs to be disassembled, the position of the limiting plate 13 can be controlled so that the battery pack can be disassembled.

[0071] The adjusting device 10 includes a limiting groove 101 arranged on the side of the heat dissipation plate 2. A screw rod 102 is arranged in the limiting groove 101, and a moving block 103 is threadedly connected to the screw rod 102. The moving block 103 is fixedly connected to the limiting plate 13; When specifically adjusting, rotate the screw rod 102, and the screw rod 102 will drive the moving block 103 slidably arranged in the limiting groove 101 to move. The moving block 103 drives the limiting plate 13 to move, and the limiting plate 13 blocking the sliding structure 9 between the battery pack and the heat dissipation plate 2 is moved away; at this time, the battery pack can be pulled out from between the two heat dissipation plates 2.

[0072] Refer to Figure 21 ; however, an air collecting assembly 7 is provided in front of the heat dissipation plate 2 in this device. Therefore, in order to facilitate the rotation of the screw rod 102, a rotation structure 11 for driving the rotation of the screw rod 102 is also provided in this device.

[0073] The rotation structure 11 includes a first bevel gear 111 provided at the end of the screw rod 102. The first bevel gear 111 meshes with a second bevel gear 112. The second bevel gear 112 is key-connected to an adjusting rod 113. The adjusting rod 113 is vertically provided on the heat dissipation plate 2.

[0074] When the staff needs to adjust the position of the limiting plate 13, the adjusting rod 113 can be rotated. The adjusting rod 113 will drive the first bevel gear 111 to rotate, and then drive the meshing second bevel gear 112 to rotate, thereby driving the screw rod 102 to rotate.

[0075] In addition, the battery pack is arranged between the heat dissipation plates 2. In addition to the energy storage function, it also has the function of supporting the formation of a battery cluster; if one of the middle battery packs is removed, the upper heat dissipation plate 2 and the battery pack will lose the supporting force; therefore, in order to cope with this situation, a strengthening frame 12 is also provided in this device.

[0076] Refer to Figure 4 , the strengthening frame 12 includes side frame plates 121 located at the front and rear ends of the battery cluster and a top frame plate 122 provided on the top of the side frame plates 121; the side frame plates 121 include vertical plates 123 and a support frame 124 provided between the vertical plates 123. The support frame 124 is in the shape of a "concave" character. The support frame 124 is arranged on the heat dissipation plate to provide support force for the support plate.

[0077] When one of the middle battery packs is taken out, the gravity above the battery pack will press on the support frame 124, making a suspended structure formed in the middle of the entire battery cluster; facilitating the disassembly and horizontal replacement of the battery pack.

[0078] The control method of this control cabinet includes the following steps: Step S1: Close the cabinet door 8, and adjust the position between the connecting frame 722 and the air outlet 713 of the air collecting plate 71 through the moving device 72 to ensure that the connecting frame 722 is inserted into the air outlet 713 of the air collecting plate 71; Step S2: Start the air extraction assembly 6 to introduce external air through the air inlet 3; Step S3: Guide the cold air introduced through the air inlet 3 to the air inlet cavity 23 through the heat dissipation plate 2 provided in the battery cabinet 1; Step S4: Utilize the equidistant arc-shaped air guide grooves 233 formed by the arc-shaped air guide plates 232 to evenly distribute the cold air and enter the air outlet cavity 24 through the ventilation grooves 25 and the air collecting cavity 234; Step S4: Use the air collecting component 7 to collect the hot air discharged from the air outlet cavity 24 into the air collecting plate 71; Step S5: The hot air collected in the air collecting plate 71 is pumped into the air extraction component 6 and finally sent outside the battery cabinet 1 by the air extraction fan 62.

[0079] Obviously, the above embodiments are only examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An energy storage battery control cabinet, characterized in that: It comprises a battery cabinet (1) and a heat sink (2) arranged in the battery cabinet (1); the heat sink (2) is provided with an air inlet (3) at the rear end and two symmetrically arranged air outlets (4) at the front end; the air inlet (3) is connected to the interior of the battery cabinet (1), and the air outlet (4) is connected to a heat dissipation structure (5).

2. The energy storage battery control cabinet according to claim 1, characterized in that: The heat sink (2) comprises a shell (21), a wind cavity is formed inside the shell (21), and two baffles (22) are arranged inside the wind cavity, the baffles (22) divide the wind cavity into three chambers; the chambers are respectively an air inlet chamber (23) and an air outlet chamber (24) arranged on both sides of the air inlet chamber (23); the air inlet chamber (23) is connected to the air inlet port (3), the air outlet chamber (24) is connected to the air outlet port (4), and the baffle (22) is provided with a ventilation slot (25), the ventilation slot (25) connects the air inlet chamber (23) and the air outlet chamber (24).

3. The energy storage battery control cabinet according to claim 2, characterized in that: A partition plate (26) is provided in the middle of the air inlet cavity (23), the partition plate (26) dividing the air inlet cavity (23) into two independent air induction cavities (231), a plurality of arc-shaped air guide plates (232) are provided in the air induction cavity (231), equidistant arc-shaped air guide grooves (233) are formed between the arc-shaped air guide plates (232), and some of the arc-shaped air guide grooves (233) are connected to the ventilation grooves (25).

4. The energy storage battery control cabinet and control method thereof according to claim 3, characterized in that: The center of the circle where the arc of each arc-shaped air guide plate (232) lies is the same.

5. The energy storage battery control cabinet according to claim 4 is characterized in that: An air collecting chamber (234) is also provided at the front end of the air inlet chamber (23); another part of the arc-shaped air guide groove (233) is connected to the air collecting chamber (234); a mounting groove is provided on one side of the air collecting chamber (234); the mounting groove is provided on the baffle (22); and a drainage fan (235) is provided in the mounting groove.

6. The energy storage battery control cabinet according to claim 5, characterized in that: The heat dissipation structure (5) comprises an air extraction component (6) arranged on a cabinet door (8) in the battery cabinet (1); the air extraction port of the air extraction component (6) is connected to the air outlet (4) through an air collection component (7); the air collection component (7) comprises an air collection plate (71) installed at the end of the air outlet (4); the air collection plate (71) comprises an internally hollow shell (711); two air inlets (712) connected to the air outlet (4) are arranged at the rear end of the shell (711); an air outlet (713) is arranged at the front end of the shell (711); the air outlet (713) is located between the two air inlets (712); side suction columns (714) are arranged on both sides of the shell (711); and a side suction port (715) is arranged at the rear end of the side suction column (714).

7. The energy storage battery control cabinet according to claim 6, characterized in that: The air collecting component (7) also includes a movable device (72) docked with the air outlet (713), and the movable device (72) includes a movable plate (721) arranged at the rear end of the air extraction component (6), and a connecting frame (722) corresponding to the air outlet (713) is arranged on the movable plate (721), and the front end of the connecting frame (722) is connected to the air extraction component (6), and a flexible tube (723) is arranged on the connecting frame (722), and the flexible tube (723) is connected to the air extraction port.

8. The energy storage battery control cabinet according to claim 7, characterized in that: The air collecting component (7) also includes a driving device (73) for pushing the moving device (72), the driving device (73) including a cylinder (731) mounted on the air extraction component (6), the piston end of the cylinder (731) being fixed on the moving plate (721), and a plurality of limiting columns (732) being mounted on the air extraction component (6), the limiting columns (732) passing through the moving plate (721), and a limiting disk (733) being arranged at the end of the limiting columns (732).

9. The energy storage battery control cabinet according to claim 8, characterized in that: The battery pack is arranged on the heat sink (2), and a sliding structure (9) is arranged between the battery pack and the heat sink (2), the sliding structure (9) comprising a sliding groove (91) provided on the upper and lower end surfaces of the heat sink (2), a sliding bar (92) being slidably arranged in the sliding groove (91), and the sliding bar (92) being fixed on the battery pack; and a limiting plate (13) for limiting the sliding of the battery pack is arranged on the side of the heat sink (2) through an adjusting device (10), the adjusting device (10) comprising a limiting groove (101) arranged on the side of the heat sink (2), a screw rod (102) being arranged in the limiting groove (101), a moving block (103) being threadedly connected to the screw rod (102), and the moving block (103) being fixedly connected to the limiting plate (13); A rotating structure (11) is provided at one end of the screw rod (102), the rotating structure (11) comprising a first bevel gear (111) provided at the end of the screw rod (102), the first bevel gear (111) being meshed with a second bevel gear (112), the second bevel gear (112) being key-connected with an adjusting rod (113), the adjusting rod (113) being vertically provided on the heat dissipation plate (2).

10. A method for controlling an energy storage battery control cabinet, characterized in that: The method is based on the energy storage battery control cabinet described in any one of claims 1 to 9 above; the method comprises the following steps: Step S1: close the cabinet door (8), and adjust the position between the connection frame (722) and the air outlet (713) of the air collecting plate (71) by means of a moving device (72) to ensure that the connection frame (722) is inserted into the air outlet (713) of the air collecting plate (71); Step S2: start the exhaust assembly (6) so that the air inlet (3) introduces external air; Step S3: guide the cold air introduced by the air inlet (3) to the air inlet chamber (23) through the heat dissipation plate (2) arranged in the battery cabinet (1); Step S4: use the equidistant arcuate air guide grooves (233) formed by the arcuate air guide plate (232) to evenly distribute the cold air and enter the air outlet chamber (24) through the ventilation grooves (25) and the air collecting chamber (234); Step S4: use the air collecting assembly (7) to collect the hot air discharged from the air outlet chamber (24) into the air collecting plate (71); Step S5: the hot air collected in the air collecting plate (71) is sucked into the air extraction assembly (6), and is finally sent out of the battery cabinet (1) by the air extraction fan (62).

Images