energy storage cabinet

Abstract

The application relates to an energy storage cabinet, which comprises a cabinet body, a first cabinet door and a second cabinet door. The cabinet body comprises a battery cabin and an electrical cabin arranged along a vertical direction, and the cabinet body, the battery cabin and the electrical cabin coincide along a vertical direction. A plurality of battery modules arranged in columns are arranged symmetrically relative to the vertical direction of the battery cabin along the vertical direction. The first cabinet door and the second cabinet door are both assembled to the cabinet body, the first cabinet door is used for opening or closing the battery cabin, and the second cabinet door is used for opening or closing the battery cabin and the electrical cabin. The first cabinet door comprises an even number of first sub-cabinet doors mounted to the cabinet body, and the even number of first sub-cabinet doors are arranged symmetrically relative to the vertical direction of the battery cabin along the vertical direction. Therefore, the energy storage cabinet according to the application not only eliminates the problem of lateral gravity center deviation of a traditional energy storage cabinet; meanwhile, the cabinet door adopts a partitioned independent opening and closing structure for convenient maintenance, the larger first cabinet door is a double-leaf door structure, the door plate size is significantly reduced, and the problems of easy deformation of the door plate and overload of the hinge are solved.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage cabinet. Background Technology

[0002] As the global energy structure accelerates its transition towards cleaner and lower-carbon energy, the installed capacity of renewable energy sources such as solar and wind power continues to climb. However, renewable energy generation is characterized by significant intermittency and volatility. For example, solar power relies on sunlight, and wind power is constrained by weather conditions, making stable grid connection difficult and severely limiting the efficiency of renewable energy utilization. Energy storage units, as core equipment for solving this problem, can store electrical energy during periods of energy surplus and release it during periods of energy shortage, effectively smoothing the power generation curve and increasing the proportion of renewable energy in the energy structure, thus becoming a crucial link in promoting energy transformation.

[0003] In related technologies, energy storage cabinets are typically designed with single-door doors. For single-door energy storage cabinets, the door size is relatively large, making it difficult to control the flatness of the door. Furthermore, the door is heavy, and with prolonged use, the hinges may deform under stress, increasing the risk of the door corner sagging. It's important to understand that "door corner sagging" refers to the situation where, after long-term use, due to excessive weight, uneven stress on the hinges, or deformation, one corner of the door sags, causing a shift in its relative position to the cabinet frame. Utility Model Content

[0004] Therefore, it is necessary to provide an energy storage cabinet to address the above problems.

[0005] An energy storage cabinet includes:

[0006] The cabinet includes a battery compartment and an electrical compartment arranged vertically, and the cabinet, battery compartment and electrical compartment are aligned along the central axis of the vertical direction; wherein, the battery compartment contains battery modules arranged in multiple rows along the vertical direction, and the multiple rows of battery modules are arranged symmetrically with respect to the central axis of the battery compartment along the vertical direction.

[0007] The first cabinet door includes an even number of first sub-cabinet doors installed on the cabinet body;

[0008] An even number of first sub-cabinet doors are symmetrically arranged relative to the battery compartment along the vertical central axis, and each first sub-cabinet door can rotate around the vertical direction to open or close the battery compartment.

[0009] The second cabinet door is fitted onto the cabinet body and can rotate horizontally to open or close the electrical compartment.

[0010] Battery module, the battery module is installed in the battery compartment;

[0011] Electrical components, which are installed in the electrical compartment.

[0012] In one embodiment, the energy storage cabinet further includes a temperature control device, which is mounted on the cabinet and arranged symmetrically with respect to the cabinet along the vertical central axis, and is configured to regulate the temperature of the battery compartment.

[0013] In one embodiment, the battery compartment is provided with a battery installation space, in which multiple battery modules are installed, and the battery installation space is divided into a first air duct, a second air duct and a third air duct within the battery compartment.

[0014] The first air duct is connected to the air outlet of the temperature control device, the third air duct is connected to the air return outlet of the temperature control device, and the second air duct is connected to both the first and third air ducts, so that the first air duct, the second air duct, the gap air duct and the third air duct form a circulating air duct around the battery installation space.

[0015] In one embodiment, within the battery mounting space, a gap air duct is formed between two adjacent battery modules in the vertical direction, and the gap air duct is connected to a second air duct and a third air duct, respectively, so that the gap air duct, the second air duct and the third air duct form a circulating air duct around each battery module.

[0016] In one embodiment, a first air duct is formed between the top of the battery installation space and the top of the battery compartment, a second air duct is formed between the battery installation space and the first cabinet door, and a third air duct is formed between the battery installation space and the side wall of the battery compartment opposite to the first cabinet door.

[0017] In one embodiment, an air guide baffle is provided inside the battery compartment, and the first air duct is separated from the battery installation space by the air guide baffle.

[0018] In one embodiment, the first cabinet door and the second side of the battery mounting space are spaced apart to form a second air duct; and / or,

[0019] The third side of the battery installation space is separated from the cabinet to form a third air duct.

[0020] In one embodiment, the energy storage cabinet further includes a second partition, which is disposed within the battery installation space to divide the battery installation space into multiple independent sub-installation spaces. The multiple sub-installation spaces are arranged along the width direction, and multiple battery modules are respectively assembled in two sub-installation spaces to form multiple rows of battery modules.

[0021] In one embodiment, the number of temperature control devices is configured to be large, and each sub-installation space is provided with one temperature control device.

[0022] The first air duct forms multiple first sub-air ducts corresponding to multiple sub-installation spaces, and each first sub-air duct is connected to the air outlet of the corresponding temperature control device; and the third air duct forms multiple third sub-air ducts corresponding to multiple sub-installation spaces, and each third sub-air duct is connected to the return air outlet of the corresponding temperature control device; wherein, the second air duct is connected to each first sub-air duct and each third sub-air duct.

[0023] In one embodiment, the gap duct in each sub-installation space is connected to the corresponding third sub-duct.

[0024] In one embodiment, the energy storage cabinet further includes:

[0025] A partition, installed within the cabinet's accommodating compartment, capable of dividing the compartment into spatially independent battery and electrical compartments; and

[0026] A heat insulation layer is provided on the first partition.

[0027] The aforementioned energy storage cabinet contains a battery compartment and an electrical compartment arranged vertically within the cabinet, with the cabinet, battery compartment, and electrical compartment coinciding along their vertical central axes. The battery compartment houses battery modules arranged in vertical rows, with multiple rows of modules symmetrically arranged relative to the compartment's vertical central axis. This eliminates the lateral center-of-gravity shift problem caused by the left-right arrangement of traditional energy storage cabinets, improving transportation and operational stability. Furthermore, the cabinet doors feature independent opening and closing for easy maintenance, and the larger first door is a double-door structure, significantly reducing door panel size and resolving issues of door panel deformation and hinge overload. Attached Figure Description

[0028] Figure 1 This is a perspective view of an energy storage cabinet according to an embodiment of this application (battery modules and electrical components are not shown).

[0029] Figure 2 This is a front view of an energy storage cabinet according to an embodiment of this application.

[0030] Figure 3 This is a cross-sectional view of an energy storage cabinet according to an embodiment of this application.

[0031] Figure label:

[0032] 100. Energy storage cabinet; 1. Cabinet body; 10. Housing compartment; 101. Battery compartment; 1011. First air duct; 1012. Second air duct; 1013. Third air duct; 1014. Battery installation space; 10140. Sub-installation space; 102. Electrical compartment; 11. First partition; 2. First cabinet door; 20. First sub-cabinet door; 3. Second cabinet door; 4. Battery module; 5. Electrical components; 6. Temperature control device; 61. Air outlet; 62. Air return outlet; 7. Air guide baffle; 8. Second partition; 9. Gap air duct. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] See Figures 1 to 3 As shown, the energy storage cabinet 100 according to this application includes a cabinet body 1, a first cabinet door 2, a second cabinet door 3, a battery module 4, and electrical components 5. The cabinet body 1 contains a receiving compartment 10, which includes a battery compartment 101 and an electrical compartment 102 arranged vertically (i.e., the height direction of the energy storage cabinet 100, as shown in the up-down direction in the attached figure). The cabinet body 1, battery compartment 101, and electrical compartment 102 are arranged along a vertical central axis (i.e., the central axis of the energy storage cabinet 100, as shown in the attached figure). Figure 2 The axis X shown in the figure coincides with the axis shown in the figure. The battery compartment 101 is used to house multiple battery modules 4, which are distributed in multiple columns within the battery compartment 101 (each column includes multiple battery modules 4), and the battery modules 4 arranged in multiple columns are symmetrically arranged within the battery compartment 101 based on the central axis. The electrical compartment 102 is used to house electrical components 5.

[0040] The vertical design of the battery compartment 101 and electrical compartment 102 results in a smaller overall width for the energy storage cabinet 100, which facilitates its placement in practical applications. Furthermore, the cabinet body 1, battery compartment 101, and electrical compartment 102 are aligned along their vertical central axes, and the battery compartment 101 contains rows of battery modules 4 arranged vertically, with these multiple rows symmetrically positioned around the central axis. This avoids the lateral shift in the center of gravity common in traditional energy storage cabinets, ensuring that the center of gravity of the energy storage cabinet 100 according to this application returns to its geometric center (i.e., the central axis of the energy storage cabinet 100), significantly improving the stability of the energy storage cabinet 100 during transportation and use.

[0041] Furthermore, both the first cabinet door 2 and the second cabinet door 3 are mounted on the cabinet body 1. The first cabinet door 2 is used to open or close the battery compartment 101, and the second cabinet door 3 is used to open or close the electrical compartment 102. Thus, the energy storage cabinet 100 according to this application independently controls the opening and closing of the battery compartment 101 and the electrical compartment 102 through the first cabinet door 2 and the second cabinet door 3. For example, when only electrical components 5 need to be inspected (such as replacing fuses), only the second cabinet door 3 needs to be opened to open the electrical compartment 102, while the battery compartment 101 remains locked; when the battery module 4 needs to be replaced, only the first cabinet door 2 needs to be opened to open the battery compartment 101, while the electrical compartment 102 remains locked.

[0042] The first cabinet door 2 includes an even number of first sub-cabinet doors 20, which are symmetrically arranged along the vertical central axis relative to the battery compartment 101. Each first sub-cabinet door 20 can rotate around the vertical direction to open or close the battery compartment. That is, the first cabinet door 2 adopts a width-direction split design, which significantly reduces the size of a single door panel (i.e., the first sub-cabinet door 20). This avoids the problem of uncontrolled flatness caused by excessively large door panels, reduces the reliance on reinforcing ribs, lightens the overall weight, and fundamentally eliminates the risk of long-term load-bearing deformation of the door hinges and corner chipping of the door panel.

[0043] In summary, according to the energy storage cabinet 100 of this application, the cabinet body 1 is provided with a battery compartment 101 and an electrical compartment 102 arranged vertically, and the cabinet body 1, battery compartment 101 and electrical compartment 102 coincide along the central axis of the vertical direction. The battery compartment 101 contains rows of battery modules 4 arranged vertically, and the multiple rows of battery modules 4 are symmetrically arranged relative to the central axis of the battery compartment 101 along the vertical direction, eliminating the lateral center of gravity shift problem caused by the left-right arrangement of traditional energy storage cabinets, and improving transportation and usage stability. Furthermore, the cabinet doors adopt independent opening and closing for easy maintenance, and the first cabinet door 2 is a double-door structure in the width direction, significantly reducing the door panel size and solving the problems of easy door panel deformation and hinge overload.

[0044] In some embodiments of this application, the energy storage cabinet 100 is further provided with a first partition 11, which is disposed within the receiving compartment 10 of the cabinet 1. The first partition 11 is used to divide the receiving compartment 10 into a spatially independent battery compartment 101 and an electrical compartment 102. That is, the first partition 11 makes the battery compartment 101 and the electrical compartment 102 two spatially isolated independent spaces within the receiving compartment 10, so as to avoid heat transfer between the battery compartment 101 and the electrical compartment 102. In this way, the heat generated by the battery module 4 during operation in the battery compartment 101 is prevented from causing the temperature of the electrical compartment 102 to rise, so that the ambient temperature in the electrical compartment 102 is maintained at a suitable ambient temperature, thereby improving the working stability of the electrical components 5. The energy storage cabinet 100 may also include a heat insulation layer disposed in the first partition 11 (the heat insulation layer may be disposed inside and / or on the outer surface of the first partition 11), thereby enhancing the heat insulation capability of the first partition 11. For example, the insulation layer is made of materials with heat insulation properties such as polystyrene or polyurethane. The insulation layer is used to improve the heat insulation capacity of the first partition 11 and further prevent heat exchange between the battery compartment 101 and the electrical compartment 102.

[0045] In some embodiments of this application, participants Figure 3 As shown, the energy storage cabinet 100 also includes a temperature control device 6, which is mounted on the cabinet body 1 and arranged symmetrically with respect to the central axis of the cabinet body 1 in the vertical direction. The temperature control device 6 is configured to regulate the temperature of the battery compartment 101. Specifically, the temperature control device 6 is integrated into the structure of the cabinet body 1 (e.g., installed inside the battery compartment 101 or connected to the wall of the cabinet body 1), and multiple temperature control devices 6 are arranged symmetrically based on the central axis of the cabinet body 1. This is to ensure that the center of gravity of the energy storage cabinet 100 returns to its geometric center (i.e., the central axis of the energy storage cabinet 100). For example, in some embodiments of this application, the energy storage cabinet 100 is provided with two temperature control devices 6, both of which are mounted on the cabinet body 1, and these two temperature control devices 6 are arranged symmetrically based on the central axis of the cabinet body 1 (i.e., in the cabinet body 1, one temperature control device 6 is located on the left side of the cabinet body 1, and the other temperature control device 6 is located on the right side of the cabinet body 1).

[0046] In addition, the temperature control device 6 is configured to regulate the temperature of the battery compartment 101 (e.g., cooling or heating) to maintain the battery compartment 101 within a preset suitable operating temperature range. It should be understood that the battery module 4 generates significant heat during charging and discharging, which may cause the temperature of the battery compartment 101 to rise. The temperature control device 6 can monitor and regulate the ambient temperature of the battery compartment 101 in real time to avoid negative impacts on battery performance from excessively high or low temperatures. For example, in high-temperature environments, the temperature control device 6 can activate the cooling function (e.g., air cooling or liquid cooling system) to prevent performance degradation or safety risks caused by overheating of the battery module 4; in low-temperature environments, it can activate the heating function to ensure that the battery module 4 quickly reaches its optimal operating state.

[0047] Thus, through the active intervention of the temperature control device 6, the working efficiency and service life of the battery module 4 are significantly improved, while reducing the failure rate caused by temperature fluctuations. In addition, due to the physical thermal insulation between the battery compartment 101 and the electrical compartment 102, and the fact that the temperature control device 6 focuses on optimizing the temperature inside the battery compartment 101, the two together form a dual temperature management mechanism, ensuring the stable operation of the battery module 4.

[0048] See Figure 3 As shown, in some embodiments of this application, a battery mounting space 1014 is provided within the battery compartment 101. Multiple battery modules 4 are installed within the battery mounting space 1014, and the battery mounting space 1014 is divided within the battery compartment 101 into a first air duct 1011, a second air duct 1012, and a third air duct 1013. The first air duct 1011, the second air duct 1012, and the third air duct 1013 are sequentially connected to form a circulating air duct surrounding the battery mounting space 1014. The first air duct 1011 is connected to the air outlet 61 of the temperature control device 6, and the third air duct 1013 is connected to the air return vent 62 of the temperature control device 6. Specifically, the airflow output from the outlet 61 of the temperature control device 6 flows sequentially along the first air duct 1011, the second air duct 1012, and the third air duct 1013, and finally returns to the temperature control device 6 through the return air inlet 62. The airflow passes through the battery mounting space 1014 during its flow from the second air duct 1012 to the third air duct 1013. The design of the first air duct 1011, the second air duct 1012, and the third air duct 1013 surrounding the battery mounting space 1014 extends the airflow time, allowing for sufficient and uniform heat exchange in the battery mounting space 1014, thus improving the temperature regulation effect of the temperature control device 6 on the battery mounting space 1014.

[0049] For example, see Figure 3As shown, in some embodiments of this application, a first air duct 1011 is formed between the top of the battery mounting space 1014 and the top of the battery compartment 101, a second air duct 1012 is formed between the battery mounting space 1014 and the first cabinet door 2, and a third air duct 1013 is formed between the battery mounting space 1014 and the side wall of the battery compartment 101 opposite to the first cabinet door 2. Specifically, when the battery module 4 is completely placed inside the battery compartment 101, the top surface of the uppermost battery module 4 and the upper wall of the battery compartment 101 form a continuous cavity extending along the length direction, which is used to arrange the first air duct 1011 (or the space is the first air duct 1011). When the battery module 4 is placed inside the battery compartment 101 and the first cabinet door 2 is closed, the inner wall of the first cabinet door 2 and the front side of the battery module 4 form a continuous cavity extending along the height direction, which is used to arrange the second air duct 1012 (or the space is the second air duct 1012). When the battery module 4 is placed inside the battery compartment 101, the rear side of the battery module 4 and the inner wall surface opposite to the cabinet 1 form a continuous cavity extending along the height direction. This cavity is used to arrange the third air duct 1013 (or the cavity is the third air duct 1013).

[0050] The temperature control device 6 is located at the rear of the cabinet 1. The first air duct 1011 is located above the battery mounting space 1014, the second air duct 1012 is located in front of the battery mounting space 1014, and the third air duct 1013 is located behind the battery mounting space 1014. During airflow: first, the airflow exits from the outlet 61 of the temperature control device 6, and then flows forward along the first air duct 1011 to the second air duct 1012. In this process, the first air duct 1011 is used to transport the airflow from the rear to the front, ensuring that the airflow area is along the length direction (i.e., Figure 3 The airflow can completely cover the battery mounting space 1014 in the front-to-back direction shown in the diagram. Then, the airflow diffuses from top to bottom along the second air duct 1012, so that the airflow area is in the height direction (i.e., Figure 3 The airflow (shown in the up-down direction) completely covers the battery mounting space 1014. Finally, the airflow passes through the battery mounting space 1014 and flows to the third air duct 1013, so that the airflow eventually returns to the temperature control device 6. Thus, the battery compartment 101 is divided into a first air duct 1011, a second air duct 1012, and a third air duct 1013, and the first air duct 1011, the second air duct 1012, and the third air duct 1013 form a circulating air duct around the battery mounting space 1014, thereby achieving a sufficient heat exchange effect on the battery mounting space 1014.

[0051] See Figure 3As shown, in some embodiments of this application, within the battery mounting space 1014, a gap air duct 9 is formed between two vertically adjacent battery modules 4. This gap air duct 9 is connected to the second air duct 1012 and the third air duct 1013, respectively, forming a circulating air duct around each battery module 4. Specifically, the first air duct 1011 is connected to the air outlet 61 of the temperature control device 6, and the third air duct 1013 is connected to the air return vent 62 of the temperature control device 6. Thus, the airflow path is constructed as: temperature control device 6 → first air duct 1011 → second air duct 1012 → gap air duct 9 (passing through the gap between the battery modules 4) → third air duct 1013 → temperature control device 6, thereby forming a complete circulating air duct system within the battery mounting space 1014. Thus, the temperature-regulating airflow (such as cold or hot air) output by the temperature control device 6 flows through the first air duct 1011 to the second air duct 1012 (i.e., the airflow is guided by the first air duct 1011 and flows from the rear to the front), and then laterally penetrates all the gaps between the battery modules 4 through the gap air ducts 9 arranged in the height direction. The airflow fully absorbs or releases heat as it flows over the surface of the battery modules 4, and finally flows back to the temperature control device 6 through the third air duct 1013. The dense arrangement of the gap air ducts 9 ensures that each battery module 4 is enveloped by airflow, avoiding the problem of poor heat dissipation in the central area caused by battery stacking in traditional solutions. (See also...) Figure 3 As shown, in some embodiments of this application, a baffle 7 is provided inside the battery compartment 101. This baffle 7 is positioned between the first air duct 1011 and the battery mounting space 1014, forming a physical isolation barrier. By completely separating the first air duct 1011 from the battery mounting space 1014, all airflow exiting from the outlet 61 of the temperature control device 6 is forced to strictly follow a predetermined path: that is, the airflow sequentially flows through the first air duct 1011, the second air duct 1012, the battery mounting space 1014, and the third air duct 1013, and finally returns to the return air inlet 62 of the temperature control device 6, forming a closed-loop circulating air duct system. Thus, the baffle 7, through physical isolation, prevents airflow from directly flowing into the gap air duct 9 and returning to the return air inlet 62 of the temperature control device 6 during its flow through the first air duct 1011.

[0052] See Figure 1 and Figure 2 As shown, in some embodiments of this application, the energy storage cabinet 100 further includes a second partition 8, which is disposed within the battery installation space 1014 to divide the battery installation space 1014 into multiple independent sub-installation spaces 10140. Multiple battery modules 4 are respectively assembled in the multiple sub-installation spaces 10140 to form multiple rows of battery modules 4.

[0053] For example, see Figure 1 and Figure 2As shown, in some embodiments of this application, a second partition 8 is provided within the battery mounting space 1014, dividing the battery mounting space 1014 into two independent sub-mounting spaces 10140 (i.e., a left sub-space and a right sub-space). Each sub-mounting space 10140 is equipped with battery modules 4, forming two rows of battery modules 4 within the battery mounting space 1014. The two rows of battery modules 4 can operate in a time-sharing mode; for example, when one row of battery modules 4 is operating, the other row is in a dormant state. The second partition 8 acts as a thermal insulator between the two rows of battery modules 4, preventing heat generated by the operating row of battery modules 4 from being transferred to the dormant row. Furthermore, for example, if a fire occurs in one row of battery modules 4, the second partition 8 can isolate the conduction of flame between the two rows of battery modules 4, preventing the other row of battery modules 4 from being affected.

[0054] In some embodiments of this application, the number of temperature control devices 6 is configured to be multiple, and each sub-installation space 10140 corresponds to one temperature control device 6. Furthermore, the first air duct 1011 forms multiple first sub-air ducts corresponding to the multiple sub-installation spaces 10140, and each first sub-air duct is connected to the air outlet 61 of the corresponding temperature control device 6. Also, the third air duct 1013 forms multiple third sub-air ducts corresponding to the multiple sub-installation spaces 10140, and each third sub-air duct is connected to the return air outlet 62 of the corresponding temperature control device 6. The second air duct 1012 is connected to each first sub-air duct and each third sub-air duct.

[0055] For example, in some embodiments of this application, two independent first sub-air ducts are provided in the first air duct 1011, two independent second sub-air ducts are provided in the second air duct 1012, and two independent third sub-air ducts are provided in the third air duct 1013. This forms two sets of circulating air ducts within the energy storage cabinet 100. Specifically, the two first sub-air ducts are respectively connected to the air outlets 61 of the two temperature control devices 6, and the two second sub-air ducts are respectively connected to the two first sub-air ducts, so that the two second sub-air ducts are used to deliver airflow to the two sub-installation spaces 10140 respectively. That is, each temperature control device 6 is used to deliver airflow to one sub-installation space 10140. Finally, the two third sub-air ducts respectively rectify the airflow in the corresponding sub-installation space 10140 to guide it to the corresponding temperature control device 6. This can also be understood as follows: within the energy storage cabinet 100, a first sub-air duct, a second sub-air duct, a gap air duct 9 within a sub-installation space 10140, and a third sub-air duct form a circulating air duct within the battery installation space 1014, and another first sub-air duct, another second sub-air duct, a gap air duct 9 within another sub-installation space 10140, and another third sub-air duct form a circulating air duct within the battery installation space 1014.

[0056] In some embodiments of this application, the second cabinet door 3 is provided with heat dissipation holes (not shown in the figure). The heat dissipation holes enable the electrical compartment 102 to communicate with the external environment, so that the heat generated by the electrical components in the electrical compartment 102 can be released into the environment for cooling.

[0057] In some embodiments of this application, the second cabinet door 3 includes two second sub-cabinet doors that open in opposite directions in the width direction. The second cabinet door 3 adopts a design that opens in opposite directions in the width direction, which significantly reduces the size of a single door panel (i.e., the second sub-cabinet door). In this way, the problem of uncontrolled flatness caused by excessively large door panels is avoided, while reducing the reliance of the door panel on reinforcing ribs, reducing the overall weight, and fundamentally eliminating the risk of long-term load-bearing deformation of the door hinges and corner chipping of the door panel.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An energy storage cabinet, characterized in that, include: The cabinet includes a battery compartment and an electrical compartment arranged vertically, and the central axis of the cabinet, the battery compartment and the electrical compartment coincides along the vertical direction; wherein, battery modules are arranged in rows along the vertical direction in the battery compartment, and the multiple rows of battery modules are arranged symmetrically with respect to the central axis of the battery compartment along the vertical direction. The first cabinet door includes an even number of first sub-cabinet doors installed on the cabinet body; the even number of first sub-cabinet doors are symmetrically arranged with respect to the battery compartment along the vertical central axis, and each first sub-cabinet door can rotate around the vertical direction to open or close the battery compartment. The second cabinet door is fitted to the cabinet body and can rotate horizontally to open or close the electrical compartment.

2. The energy storage cabinet according to claim 1, characterized in that, Also includes: A temperature control device is mounted on the cabinet and arranged symmetrically with respect to the cabinet along the vertical central axis. The temperature control device is configured to regulate the temperature of the battery compartment.

3. The energy storage cabinet according to claim 2, characterized in that, The battery compartment is provided with a battery installation space, in which multiple battery modules are installed. The battery installation space is divided into a first air duct, a second air duct, and a third air duct within the battery compartment. The first air duct is connected to the air outlet of the temperature control device, the third air duct is connected to the air return outlet of the temperature control device, and the second air duct is connected to both the first and third air ducts, so that the first, second, and third air ducts form a circulating air duct around the battery installation space.

4. The energy storage cabinet according to claim 3, characterized in that, Within the battery installation space, a gap air duct is formed between two adjacent battery modules in the vertical direction, and the gap air duct is connected to the second air duct and the third air duct respectively, so that the gap air duct, the second air duct and the third air duct form a circulating air duct around each battery module.

5. The energy storage cabinet according to claim 3, characterized in that, A first air duct is formed between the top of the battery installation space and the top of the battery compartment, a second air duct is formed between the battery installation space and the first cabinet door, and a third air duct is formed between the battery installation space and the side wall of the battery compartment opposite to the first cabinet door.

6. The energy storage cabinet according to claim 5, characterized in that, An air guide baffle is provided inside the battery compartment, and the first air duct is separated from the battery installation space by the air guide baffle.

7. The energy storage cabinet according to claim 4, characterized in that, Also includes: The second partition is disposed within the battery mounting space to divide the battery mounting space into multiple independent sub-mounting spaces. Multiple battery modules are respectively assembled in the multiple sub-mounting spaces to form multiple rows of battery modules.

8. The energy storage cabinet according to claim 7, characterized in that, The number of temperature control devices is configured to be multiple, and each of the sub-installation spaces is provided with one temperature control device; The first air duct forms multiple first sub-air ducts corresponding to multiple sub-installation spaces, and each first sub-air duct is connected to the air outlet of the corresponding temperature control device; and the third air duct forms multiple third sub-air ducts corresponding to multiple sub-installation spaces, and each third sub-air duct is connected to the air return outlet of the corresponding temperature control device; wherein, the second air duct is connected to each first sub-air duct and each third sub-air duct.

9. The energy storage cabinet according to claim 8, characterized in that, The gap ducts within each of the sub-installation spaces are respectively connected to the corresponding third sub-ducts.

10. The energy storage cabinet according to any one of claims 1 to 9, characterized in that, Also includes: A first partition is disposed within the cabinet's accommodating compartment and is capable of dividing the accommodating compartment into a spatially independent battery compartment and an electrical compartment. as well as A heat insulation layer is disposed on the first partition.

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