Energy storage device and energy storage system

Abstract

The utility model provides an energy storage device and an energy storage system, and the energy storage device comprises a cabinet body which is provided with an accommodation space, the cabinet body comprises a first wall, and the interior of the first wall is provided with an inner cavity; the battery cluster is accommodated in the accommodating space; the dehumidification component is arranged in the accommodating space and is connected with the cabinet body; at least part of the flow guide component is arranged in the inner cavity and connected with the first wall, the flow guide component is provided with an inlet and an outlet, the inlet is connected with the dehumidification component, and the outlet communicates with the outer space, away from the containing space, of the first wall. According to the energy storage device and the energy storage system provided by the utility model, the energy storage device can ensure the discharge requirement of condensate water, and the reliability of the energy storage device is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to an energy storage device and an energy storage system. Background Technology

[0002] With the promotion and popularization of the concept of green development, new energy batteries are being used more and more widely in daily life and industry, and energy storage devices are also being used in more and more scenarios. Energy storage devices usually contain battery clusters and dehumidification components. The dehumidification components remove moisture from the energy storage device so that the battery clusters can operate in a dry environment.

[0003] When an energy storage device is in operation, the condensate generated by the dehumidification component needs to be discharged in a timely manner. Therefore, how to smoothly discharge the condensate is a problem that needs to be solved for energy storage devices. Utility Model Content

[0004] In view of the above problems, this utility model provides an energy storage device and an energy storage system. The energy storage device can ensure the condensate discharge requirement and improve the reliability of the energy storage device.

[0005] In a first aspect, the present invention provides an energy storage device, comprising: a cabinet having a receiving space, the cabinet including a first wall having an inner cavity inside the first wall; a battery cluster being received in the receiving space; a dehumidifying component being disposed in the receiving space and connected to the cabinet; and a flow guiding component being at least partially disposed in the inner cavity and connected to the first wall, the flow guiding component having an inlet and an outlet, the inlet being connected to the dehumidifying component, and the outlet being connected to an external space of the first wall away from the receiving space.

[0006] The technical solution of this utility model embodiment includes a cabinet, a battery cluster, a dehumidification component, and a flow guiding component. The cabinet protects the battery cluster and other components. The dehumidification component removes moisture from the cabinet, ensuring that the battery cluster and other components can operate in a dry environment and improving their reliability. The correspondingly provided flow guiding component can introduce condensate generated by the dehumidification component from the inlet and discharge it from the outlet, ensuring the drainage requirements of condensate. Since the first wall has an internal cavity, and at least a portion of the flow guiding component is located within the internal cavity, the flow guiding component can be positioned inside the first wall of the cabinet. The internal cavity protects the flow guiding component from external factors such as external pressure or torsion, preventing distortion and ensuring smooth drainage, thus improving the reliability of the energy storage device. Furthermore, the above arrangement ensures that the flow guiding component does not occupy external space or space within the cabinet, and will not interfere with the installation of other components. Simultaneously, the flow guiding component is enclosed by the first wall, ensuring a neat and aesthetically pleasing appearance of the energy storage device.

[0007] In some embodiments, the cabinet has a top surface and a bottom surface opposite each other along its height direction, the distance from the inlet to the bottom surface is greater than the distance from the outlet to the bottom surface, and at least part of the flow guiding component located between the inlet and the outlet is inclined toward the side where the outlet is located.

[0008] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, enables the condensate entering through the inlet to be quickly discharged from the outlet to the external space of the cabinet under the action of gravity, and can reduce the probability of condensate blockage and facilitate smooth drainage.

[0009] In some embodiments, the energy storage device further includes a snap-fit ​​connector disposed in the inner cavity and connected to the cabinet, and a flow guiding component is detachably connected to the snap-fit ​​connector.

[0010] An embodiment of the present invention provides an energy storage device that includes a snap-fit ​​component, which can be used to snap-fit ​​and fix the flow guiding component, making it less likely for the flow guiding component to fall off during transportation, thus ensuring reliability during transportation.

[0011] In some embodiments, a first hole and a second hole are provided on the first wall, the side of the flow guide component with the outlet is inserted into the first hole, the flow guide component is sealed to the hole wall of the first hole, and the side of the flow guide component with the inlet protrudes from the first wall through the second hole.

[0012] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, facilitates the placement of the flow guiding component in the inner cavity and the connection between it and the drain outlet of the dehumidification component. At the same time, it can ensure that the flow guiding component can guide the condensate to the outside of the box, so that the various devices in the containment space can always work in a dry environment.

[0013] In some embodiments, the cabinet includes a cabinet body and a cabinet door, the cabinet door and the cabinet body are openable, the cabinet door includes a first wall, and a dehumidification component is disposed on the cabinet door.

[0014] The energy storage device provided in one embodiment of this utility model, through the above-described arrangement, allows both the dehumidification component and the airflow guiding component to be integrated on the cabinet door. This shortens the transmission path between the dehumidification component and the airflow guiding component, reduces the probability of blockage in the airflow guiding component, and improves the smoothness of airflow guiding. Simultaneously, providing an inner cavity on a single cabinet door facilitates the processing and shaping of the inner cavity, reducing production costs and the difficulty of disassembling and assembling the airflow guiding component.

[0015] In some embodiments, the flow guiding component includes a first conduit and a second conduit, one of which is inserted into and connected to the other, with an inlet located in the second conduit and an outlet located in the first conduit, the first conduit being at least partially located within the inner cavity.

[0016] The energy storage device provided in one embodiment of this utility model includes a first pipe and a second pipe in the flow guiding component, with one of the first pipe and the second pipe being inserted into and connected to the other. This allows for segmented installation of the flow guiding component as needed, connecting it to the external space of the dehumidification component and the cabinet, reducing the difficulty of installing the flow guiding component and connecting it to the dehumidification component and the cabinet. Furthermore, if the first pipe or the second pipe leaks, only the leaking first pipe or the leaking second pipe needs to be replaced, reducing maintenance costs.

[0017] In some embodiments, the hardness of the first pipeline is greater than the hardness of the second pipeline.

[0018] The energy storage device provided in one embodiment of this utility model, through the above-described arrangement, facilitates the flow guiding component to turn and change direction at the second pipeline position according to the area where the dehumidification component is located, reducing the difficulty of docking with the flow guiding component. By making the first pipeline more rigid, the probability of the flow guiding component being squeezed and deformed during installation and transportation can be reduced, ensuring the smooth drainage of condensate.

[0019] In some embodiments, the first pipeline includes a first sub-pipe segment, a second sub-pipe segment, and a third sub-pipe segment. The second sub-pipe segment intersects and is connected to the first and third sub-pipe segments respectively. The first sub-pipe segment is connected to the second pipeline, and the outlet is located in the third sub-pipe segment.

[0020] The energy storage device provided in one embodiment of this utility model adopts the above-described structure in the first pipeline, which can not only ensure the flow requirements, but also avoid some other components on the first wall, such as turning around and avoiding some control boards, alarms and other structures, thus avoiding assembly interference.

[0021] In some embodiments, the first sub-pipe segment is inclined, and along the height direction of the cabinet, the height of the end of the first sub-pipe segment connected to the second pipe is higher than the height of the end connected to the second sub-pipe segment.

[0022] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, enables the condensate entering the second sub-pipe section to flow quickly and smoothly under the action of the inclination angle of the first sub-pipe section, thereby reducing the probability of blockage.

[0023] In some embodiments, the third sub-pipe segment is inclined, and along the height direction of the cabinet, the height of the end where the third sub-pipe segment connects to the second sub-pipe segment is higher than the height of the end where the outlet of the third sub-pipe segment is located.

[0024] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, enables the condensate entering the device to flow out of the outlet quickly and smoothly under the action of the inclination angle of the third sub-pipe section, thereby reducing the probability of blockage.

[0025] In some embodiments, the first conduit comprises a metal tube, and the second conduit comprises a flexible transparent tube.

[0026] The energy storage device provided in one embodiment of this utility model, through the above-described configuration, facilitates the reversal of the second pipeline position according to the location of the dehumidification component, reducing the difficulty of docking with the flow guiding component. By using a higher rigidity for the first pipeline, the probability of the flow guiding component being squeezed and deformed during installation and transportation is reduced, ensuring smooth drainage of condensate. Furthermore, the transparent design of the second pipeline facilitates observation of condensate drainage, allowing for timely detection of blockages or leaks.

[0027] Secondly, this utility model provides an energy storage system, including a power conversion device and the aforementioned energy storage device, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0028] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of the present invention;

[0031] Figure 2 This is a partial cross-sectional view of the first wall provided in an embodiment of the present invention;

[0032] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0033] Figure 4 yes Figure 1 A magnified view of a section at point B in the middle;

[0034] Figure 5 This is a schematic diagram of the structure of a flow guiding component according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the flow guiding component according to another embodiment of the present invention;

[0036] Figure 7 This is a side view of a flow guide component according to another embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Cabinet body; 11. Cabinet body; 12. Cabinet door; 121. First wall; 121a. Inner cavity; 121b. First hole; 121c. Second hole; 1211. Inner wall; 1212. Outer wall; 111. Top surface; 112. Bottom surface; 10a. Accommodation space;

[0039] 20. Battery clusters;

[0040] 30. Dehumidification components;

[0041] 40. Flow guiding component; 40a. Inlet; 40b. Outlet; 41. First pipeline; 411. First sub-pipe section; 412. Second sub-pipe section; 413. Third sub-pipe section; 42. Second pipeline;

[0042] 50. Snap-on connectors;

[0043] X, the height direction. Detailed Implementation

[0044] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0045] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by those skilled in the art to which the embodiments of this utility model pertain.

[0046] In the description of the embodiments of this utility model, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0047] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0049] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0050] With the promotion and popularization of the concept of green development, the application of new energy batteries in daily life and industry is becoming increasingly widespread, and energy storage devices are also being used in more and more scenarios. Energy storage devices refer to devices that temporarily or permanently store energy.

[0051] Energy storage devices typically include battery clusters and dehumidification components. The dehumidification components remove moisture from the energy storage device so that the battery clusters can operate in a dry environment.

[0052] When an energy storage device is operating, the condensate generated by the dehumidification component needs to be drained promptly. However, the condensate drainage performance of energy storage devices in related technologies is inadequate. Research has found that the structure used to drain the condensate generated by the dehumidification component is arbitrarily suspended outside the energy storage device. This arrangement makes the structure susceptible to distortion due to external factors, leading to problems such as poor drainage.

[0053] To alleviate the aforementioned technical problems, while meeting drainage requirements, the structure used for discharging condensate from the dehumidification component 30 can be protected to prevent distortion caused by external factors such as compression or torsion, thus ensuring smooth drainage. Based on these considerations, an energy storage device is designed, including a cabinet, a battery cluster, a dehumidification component, and a flow guiding component. The cabinet has a receiving space and includes a first wall with an internal cavity. The battery cluster is housed within the receiving space. The dehumidification component is located within the receiving space and connected to the cabinet. The flow guiding component is at least partially located within the internal cavity and connected to the first wall. The flow guiding component has an inlet and an outlet; the inlet communicates with the dehumidification component, and the outlet communicates with an external space on the first wall away from the receiving space. By providing an internal cavity within the first wall and housing at least part of the flow guiding component within it, the internal cavity can protect the flow guiding component from distortion caused by external factors such as compression or torsion, thereby ensuring smooth drainage and improving the reliability of the energy storage device.

[0054] This invention provides an energy storage device including one or more battery clusters to enhance the voltage and capacity of the energy storage device. A battery cluster may include multiple battery devices connected in series via a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0055] The battery apparatus mentioned in the embodiments of this utility model may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar.

[0056] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0057] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0058] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0059] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the housing by fixing the battery module in the housing.

[0060] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0061] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0062] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0063] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, an energy storage device can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. The energy storage system provided in this embodiment can be any power system that requires energy storage devices.

[0064] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0065] The following is a detailed explanation with reference to the accompanying drawings.

[0066] Figure 1 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of the first wall 121 provided in an embodiment of the present invention; Figure 3 yes Figure 1 A magnified view of a section at point A in the middle; Figure 4 yes Figure 1 A magnified view of a section at point B.

[0067] Please refer to 1 to Figure 4As shown, an embodiment of the present invention provides an energy storage device including a cabinet 10, a battery cluster 20, a dehumidification component 30, and a flow guiding component 40. The cabinet 10 has a receiving space 10a and includes a first wall 121. The interior of the first wall 121 is provided with an inner cavity 121a, in which the battery cluster 20 is received. The dehumidification component 30 is disposed in the receiving space 10a and connected to the cabinet 10. The flow guiding component 40 is at least partially disposed in the inner cavity 121a and connected to the first wall 121. The flow guiding component 40 has an inlet 40a and an outlet 40b. The inlet 40a communicates with the dehumidification component 30, and the outlet 40b communicates with the external space of the first wall 121 away from the receiving space 10a.

[0068] The cabinet 10 has an internal accommodating space 10a, which can be a single, integral space or, as needed, can include multiple partitioned sub-spaces. The accommodating space 10a is used to accommodate at least the battery cluster 20 and the dehumidifying component 30. The cabinet 10 may include multiple sidewalls that enclose the accommodating space 10a, and a first wall 121 may be located on at least one of the sidewalls.

[0069] The inner cavity 121a of the first wall 121 can be understood as the interior of the first wall 121 being hollow. The first wall 121 may include an inner wall 1211 and an outer wall 1212. The inner wall 1211 is disposed facing the receiving space 10a. The outer wall 1212 is disposed at a distance from the inner wall 1211 and is located on the side of the inner wall 1211 away from the receiving cavity. The inner cavity 121a is located between the inner wall 1211 and the outer wall 1212 of the first wall 121 and is connected to the first wall 121.

[0070] The number of battery clusters 20 can be one or more. When there are multiple battery clusters 20, the multiple battery clusters 20 can be set apart or stacked.

[0071] The dehumidification component 30 may include a dehumidifier or a dehumidifying air conditioner, etc.

[0072] The flow guiding component 40 may be partially located in the inner cavity 121a or completely located in the inner cavity 121a.

[0073] The flow guiding component 40 can be a single integrated pipeline, or it can be a combination of multiple pipelines.

[0074] The inlet 40a of the flow guiding component 40 can be connected to and communicate with the drain outlet of the dehumidifying component 30. The two can be connected in a fixed or detachable manner. The outlet 40b of the flow guiding component 40 can be flush with the outer surface of the first wall 121 away from the receiving space 10a, or it can protrude from the outer surface.

[0075] An embodiment of this utility model provides an energy storage device including a cabinet 10, a battery cluster 20, a dehumidification component 30, and a flow guiding component 40. The cabinet 10 protects the battery cluster 20 and other components. The dehumidification component 30 removes moisture from the cabinet 10, ensuring that the battery cluster 20 and other components can operate in a dry environment, thus improving their reliability. The correspondingly provided flow guiding component 40 can introduce condensate generated by the dehumidification component 30 through an inlet 40a and discharge it through an outlet 40b, ensuring the drainage requirements of condensate. Since the first wall 121 has an inner cavity 121a, and at least a portion of the flow guiding component 40 is located in the inner cavity 121a, the flow guiding component 40 can be located inside the first wall 121 of the cabinet 10. The inner cavity 121a protects the flow guiding component 40 from being twisted by external factors such as external pressure or torsion, thereby ensuring smooth drainage and improving the reliability of the energy storage device.

[0076] Furthermore, the aforementioned arrangement ensures that the flow guiding component 40 does not occupy external space of the cabinet 10 or space within the housing 10a, and will not interfere with the installation of other components. Simultaneously, it allows the flow guiding component 40 to be enclosed by the first wall 121, guaranteeing a neat and aesthetically pleasing appearance for the energy storage device.

[0077] Please refer to 1 to Figure 4 As shown, in some optional embodiments, the energy storage device provided in one embodiment of the present invention has a cabinet 10 having a top surface 111 and a bottom surface 112 along its own height direction X. The distance from the inlet 40a to the bottom surface 112 is greater than the distance from the outlet 40b to the bottom surface 112. At least a portion of the flow guiding component 40 located between the inlet 40a and the outlet 40b is inclined toward the side where the outlet 40b is located.

[0078] The distance from inlet 40a to bottom surface 112 can be either along the height direction X or the vertical distance from inlet 40a to bottom surface 112. The distance from outlet 40b to bottom surface 112 can be either along the height direction X or the vertical distance from outlet 40b to bottom surface 112.

[0079] The height direction X of cabinet 10 can be understood as the direction perpendicular to the supporting surface on which cabinet 10 is located. The supporting surface can be the ground or the surface of the support platform that contacts cabinet 10.

[0080] The bottom surface 112 of the cabinet 10 in the height direction X can be a lower surface located close to the support surface, and the top surface 111 can be an upper surface located away from the support surface.

[0081] The distance from inlet 40a to bottom surface 112 is greater than the distance from outlet 40b to bottom surface 112, which can be in the height direction X, where the height of inlet 40a is higher than the height of outlet 40b.

[0082] The portion of the flow guiding component 40 located between the inlet 40a and the outlet 40b can be inclined as a whole toward the side where the outlet 40b is located, or it can be partially inclined toward the side where the outlet 40b is located.

[0083] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, enables the condensate entering through the inlet 40a to be quickly discharged from the outlet 40b to the external space of the cabinet 10 under the action of gravity, and can reduce the probability of condensate blockage and facilitate smooth drainage.

[0084] Optionally, the flow guiding component 40 and the first wall 121 of the cabinet 10 can be connected by a fixed connection, such as by welding or bonding. Of course, this is an optional implementation.

[0085] Continue reading Figures 1 to 4 As shown, in some optional embodiments, the energy storage device provided in one embodiment of the present invention further includes a snap-fit ​​member 50, which is disposed in the inner cavity 121a and connected to the cabinet 10, and the flow guiding member 40 is detachably connected to the snap-fit ​​member 50.

[0086] The snap-fit ​​component 50 may include structural forms such as clamps and grips.

[0087] The snap-fit ​​component 50 may include symmetrically distributed snap-fit ​​units, and snap-fit ​​interfaces may be provided between the symmetrically distributed snap-fit ​​units. The flow guiding component 40 can enter the snap-fit ​​component 50 through the snap-fit ​​interfaces and snap-fit ​​and fix it in the snap-fit ​​component 50. The snap-fit ​​units of the snap-fit ​​component 50 itself may have elastic elastic bodies. Of course, snap-fit ​​fixing parts with elasticity may also be provided on the snap-fit ​​units to achieve detachable connection with the flow guiding component 40.

[0088] The number of snap-fit ​​pieces 50 can be one or more. When there are more than two, the two or more snap-fit ​​pieces 50 can be distributed at intervals in the flow direction of the condensate within the flow guide component 40.

[0089] The energy storage device provided in one embodiment of the present invention includes a snap-fit ​​member 50, which can be used to snap-fit ​​and fix the flow guiding member 40, so that the relative position temperature between the flow guiding member 40 and the cabinet 10 is not easy to fall off during transportation, thus ensuring reliability during transportation.

[0090] Continue reading Figures 1 to 4As shown, in some optional embodiments, the energy storage device provided in one embodiment of the present invention has a first hole 121b and a second hole 121c on the first wall 121. The flow guiding component 40 is inserted into the first hole 121b on one side of the outlet 40b. The flow guiding component 40 is sealed to the hole wall of the first hole 121b. The flow guiding component 40 is provided on the side of the inlet 40a that protrudes from the first wall 121 through the second hole 121c.

[0091] The shape of the first hole 121b can match the shape of the end of the flow guide 40 where the outlet 40b is located, and can be a round hole, an elliptical hole, or a polygonal hole. The end of the flow guide 40 where the outlet 40b is located can be inserted and fixed into the first hole 121b.

[0092] The flow guiding component 40 and the hole wall of the first hole 121b can be sealed with sealant or sealed by welding.

[0093] The shape of the second hole 121c can match the shape of the end of the flow guide component 40 with the inlet 40a, and can be a round hole, an elliptical hole, or a polygonal hole. The end of the flow guide component 40 with the inlet 40a can be inserted into the second hole 121c, and the connection between the two can be a sealed connection or a clearance fit.

[0094] The energy storage device provided in one embodiment of the present invention, through the above-mentioned arrangement, facilitates the placement of the flow guiding component 40 in the inner cavity 121a and the connection between it and the drain outlet of the dehumidification component 30. At the same time, it can ensure that the flow guiding component 40 can guide the condensate to the outside of the box, so that the various devices in the housing space 10a always operate in a dry environment.

[0095] In some alternative embodiments, the energy storage device provided in one embodiment of the present invention includes a cabinet 10 comprising a cabinet body 11 and a cabinet door 12, wherein the cabinet door 12 and the cabinet body 11 are openable, the cabinet door 12 includes a first wall 121, and a dehumidification component 30 is disposed on the cabinet door 12.

[0096] The cabinet body 11 can have a container-like structure with an opening on one side. The battery cluster 20, dehumidification unit 30, etc., can be installed through the opening into the accommodating space 10a. Optionally, a cabinet door 12 that can close the opening can be provided. The shape of the cabinet door 12 can match the shape of the opening on the cabinet body 11. The cabinet door 12 can be hinged to the opening of the cabinet body 10, or it can be detachably installed at the opening of the cabinet body 10, thus achieving an openable configuration between it and the cabinet body 11.

[0097] The first wall 121 can be located on the cabinet door 12, and its area can be equal to or smaller than the area of ​​the cabinet door 12.

[0098] The dehumidification unit 30 can be hung on the side of the cabinet door 12 facing the receiving cavity.

[0099] The energy storage device provided in one embodiment of this utility model, through the above-described arrangement, allows both the dehumidification component 30 and the flow guiding component 40 to be integrated onto the cabinet door 12. This shortens the transmission path between the dehumidification component 30 and the flow guiding component 40, reduces the probability of blockage in the flow guiding component 40, and improves the smoothness of flow guidance. Simultaneously, providing an inner cavity 121a on a single cabinet door 12 facilitates the processing and shaping of the inner cavity 121a, reduces production costs, and simplifies the assembly and disassembly of the flow guiding component 40.

[0100] Please see Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the flow guiding component 40 according to an embodiment of the present invention.

[0101] In some alternative embodiments, the energy storage device provided in one embodiment of the present invention includes a flow guiding component 40 comprising a first pipe 41 and a second pipe 42, one of the first pipe 41 and the second pipe 42 being inserted into and connected to the other, an inlet 40a being disposed in the second pipe 42, and an outlet 40b being disposed in the first pipe 41, the first pipe 41 being at least partially located in the inner cavity 121a.

[0102] The first pipe 41 and the second pipe 42 included in the flow guiding component 40 can be made of the same material, or different materials can be used as needed.

[0103] The first pipe 41 and the second pipe 42 can be connected to each other by a fixed connection or by a detachable connection.

[0104] The energy storage device provided in one embodiment of this utility model, by having the flow guiding component 40 include a first pipe 41 and a second pipe 42, and by having one of the first pipe 41 and the second pipe 42 plugged into and connected to the other, allows the flow guiding component 40 to be installed in sections as needed and connected to the external space of the dehumidification component 30 and the cabinet 10, reducing the difficulty of installing the flow guiding component 40 and connecting it with the dehumidification component 30 and the cabinet 10. Furthermore, when either the first pipe 41 or the second pipe 42 leaks, only the leaking first pipe 41 or second pipe 42 needs to be replaced, reducing maintenance costs.

[0105] In some alternative embodiments, the energy storage device provided in one embodiment of the present invention has a first pipe 41 with a harder hardness than the second pipe 42.

[0106] Hardness is a material's ability to resist localized deformation, especially plastic deformation, indentation, or scratching. It is a performance indicator that measures the softness or hardness of a material. The hardness of the first pipe 41 and the second pipe 42 can be determined by observing the magnitude of plastic deformation or the depth of indentation or scratching under the same pressure applied to the first pipe 41 and the second pipe 42.

[0107] The first pipe 41 may be partially or entirely located in the inner cavity 121a, and the second pipe 42 may be partially or entirely located in the inner cavity 121a. The second pipe 42 is used to connect with the drain outlet of the dehumidification component 30.

[0108] The energy storage device provided in one embodiment of this utility model, through the above-described arrangement, facilitates the flow guiding component 40 to turn and change direction at the second pipe 42 according to the area where the dehumidifying component 30 is located, reducing the difficulty of docking with the flow guiding component 40. By making the first pipe 41 more rigid, the probability of the flow guiding component 40 being squeezed and deformed during the installation and transportation of the first pipe 41 can be reduced, ensuring the smooth discharge of condensate.

[0109] Please see Figure 6 , Figure 7 As shown, Figure 6 This is a schematic diagram of the structure of the flow guiding component 40 according to another embodiment of the present invention. Figure 7 This is a side view of the flow guide component 40 according to another embodiment of the present invention.

[0110] In some optional embodiments, the energy storage device provided in one embodiment of the present invention includes a first pipeline 41 comprising a first sub-pipe section 411, a second sub-pipe section 412 and a third sub-pipe section 413. The second sub-pipe section 412 intersects and is connected to the first sub-pipe section 411 and the third sub-pipe section 413 respectively. The first sub-pipe section 411 is connected to the second pipeline 42, and the outlet 40b is located in the third sub-pipe section 413.

[0111] The first sub-pipe segment 411, the second sub-pipe segment 412, and the third sub-pipe segment 413 can be arranged in pairs. Optionally, the first sub-pipe segment 411, the second sub-pipe segment 412, and the third sub-pipe segment 413 can be arranged in space. The extension directions of the three segments can all be different, or two of them can extend in the same direction in space and extend in directions away from each other.

[0112] The second sub-pipe section 412 can be connected to the first sub-pipe section 411 and the third sub-pipe section 413 through a bending structure, welding, or an integrated structure to meet their connection requirements.

[0113] The energy storage device provided in one embodiment of this utility model adopts the above-described structure in the first pipeline 41, which can not only ensure the flow requirements, but also avoid some other components on the first wall 121, such as turning around and avoiding some control boards, alarms and other structures, thus avoiding assembly interference.

[0114] In some alternative embodiments, the energy storage device provided in one embodiment of the present invention has a first sub-pipe segment 411 arranged at an angle along the height direction X of the cabinet 10, and the height of the end of the first sub-pipe segment 411 connected to the second pipe 42 is higher than the height of the end connected to the second sub-pipe segment 412.

[0115] In other words, along the flow direction of the condensate inside the guide member 40, the height of the side of the first sub-pipe section 411 closer to the inlet 40a is higher than the height of the side farther from the inlet 40a.

[0116] The first sub-pipe section 411 and the second sub-pipe section 412 are arranged to intersect each other and the included angle can be greater than 90°.

[0117] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, enables the condensate entering the second sub-pipe section 412 to flow quickly and smoothly under the action of the inclination angle of the first sub-pipe section 411, thereby reducing the probability of blockage.

[0118] In some alternative embodiments, the energy storage device provided in one embodiment of the present invention has a third sub-pipe segment 413 arranged at an angle along the height direction X of the cabinet 10, and the height of the end where the third sub-pipe segment 413 is connected to the second sub-pipe segment 412 is higher than the height of the end where the outlet 40b of the third sub-pipe segment 413 is located.

[0119] In other words, along the flow direction of the condensate inside the guide component 40, the height of the side of the third sub-pipe section 413 closer to the inlet is higher than the height of the side farther from the inlet.

[0120] The second sub-pipe section 412 and the third sub-pipe section 413 are arranged to intersect each other and the included angle can be greater than 90°.

[0121] The energy storage device provided in one embodiment of this utility model, through the above-mentioned arrangement, enables the condensate entering the device to flow out quickly and smoothly from the outlet 40b under the action of the inclination angle of the third sub-pipe section 413, thereby reducing the probability of blockage.

[0122] In some alternative embodiments, one embodiment of the present invention provides an energy storage device in which the first pipeline 41 includes a metal pipe and the second pipeline 42 includes a flexible transparent pipe.

[0123] Metal pipes include, but are not limited to, stainless steel pipes, steel pipes with anti-corrosion coatings, aluminum pipes, etc. Transparent flexible pipes can include transparent plastic pipes, etc.

[0124] The energy storage device provided in one embodiment of this utility model, through the above-described configuration, facilitates the reversal of the second pipe 42 according to the location of the dehumidification component 30, reducing the difficulty of docking with the guide component 40. By using a higher rigidity for the first pipe 41, the probability of the guide component 40 being squeezed and deformed during installation and transportation is reduced, ensuring smooth drainage of condensate. Furthermore, the transparent design of the second pipe 42 facilitates observation of condensate drainage, allowing for timely detection of blockages or leaks.

[0125] In some embodiments, the energy storage device provided in one embodiment of the present invention may further include modules such as a thermal management module, a main control module, a central control module, a power distribution module, and a fire protection module.

[0126] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device via piping to regulate the temperature of the individual battery cells.

[0127] As an example, the main control module can serve as the battery management unit of the battery cluster 20, used to monitor and manage the battery cluster 20. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster 20. For example, it can control the charging and discharging current and voltage of the battery cluster 20. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0128] As an example, the central control module can serve as the battery management unit for an energy storage device, used to monitor and manage the device. The central control module can monitor information such as the energy storage device's current, voltage, power, state of charge, or temperature. For instance, it can control the charging and discharging current and voltage of the energy storage device. As an example, the central control module includes modules such as an Insulation Monitoring Module (IMM), a Master Battery Management Unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0129] As an example, a fire protection system includes control panels, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in energy storage systems.

[0130] As an example, the power distribution unit can be used to distribute power to the power modules of the energy storage device.

[0131] Please see Figures 1 to 4 as well as Figure 6 , Figure 7 As shown, an embodiment of the energy storage device provided by this utility model includes a cabinet 10, a battery cluster 20, a dehumidification component 30, a flow guiding component 40, and a snap-fit ​​component 50. The cabinet 10 can be in the form of a square container. The cabinet 10 includes a cabinet body 11 and a cabinet door 12 hinged to the cabinet body 11. The cabinet door 12 includes a first wall 121, and the interior of the first wall 121 is provided with an inner cavity 121a, in which the battery cluster 20 is accommodated. The dehumidification component 30 is disposed in the accommodating space 10a and connected to the cabinet 10. The dehumidification component 30 includes a dehumidifying air conditioner and is disposed on the wall surface of the first wall 121 facing the accommodating space 10a. The flow guiding component 40 is disposed in the inner cavity 121a and connected to the first wall 121. The flow guiding component 40 has an inlet 40a and an outlet 40b. The inlet 40a is connected to the dehumidification component 30, and the outlet 40b communicates with the external space of the first wall 121 away from the accommodating space 10a. The first wall 121 has a first hole 121b and a second hole 121c. The flow guiding component 40 has one side of its outlet 40b inserted into the first hole 121b, and the flow guiding component 40 is sealed to the wall of the first hole 121b. The side of the flow guiding component 40 located at the inlet 40a protrudes from the first wall 121 through the second hole 121c. The flow guiding component 40 includes a first pipe 41 and a second pipe 42, one of which is inserted into and connected to the other. The inlet 40a is located in the second pipe 42, and the outlet 40b is located in the first pipe 41. The first pipe 41 is at least partially located in the inner cavity 121a. The first conduit 41 includes a first sub-pipe segment 411, a second sub-pipe segment 412, and a third sub-pipe segment 413. The second sub-pipe segment 412 intersects and connects with the first sub-pipe segment 411 and the third sub-pipe segment 413, respectively. The first sub-pipe segment 411 is connected to the second conduit 42, and the outlet 40b is located at the third sub-pipe segment 413. The first sub-pipe segment 411 is inclined along the height direction X of the cabinet 10, and the height of the end of the first sub-pipe segment 411 connected to the second conduit 42 is higher than the height of the end of the first sub-pipe segment 411 connected to the second sub-pipe segment 412. The third sub-pipe segment 413 is inclined along the height direction X of the cabinet 10, and the height of the end of the third sub-pipe segment 413 connected to the second sub-pipe segment 412 is higher than the height of the end of the third sub-pipe segment 413 where the outlet 40b is located. The first conduit 41 includes a metal pipe, the second conduit 42 includes a flexible transparent pipe, the snap-fit ​​50 is disposed in the inner cavity 121a and connected to the cabinet 10, and the flow guiding component 40 is detachably connected to the snap-fit ​​50.

[0132] This invention provides an energy storage system, including a power conversion device and the aforementioned energy storage device. The power conversion device is used to electrically connect the power generation device and the energy storage device. The energy storage system can guarantee the discharge of condensate and has high reliability.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device, characterized in that, include: A cabinet having a receiving space, the cabinet including a first wall, the interior of the first wall being provided with an inner cavity; The battery cluster is housed within the housing space; A dehumidification component is provided in the accommodating space and connected to the cabinet; A flow guiding component is at least partially disposed in the inner cavity and connected to the first wall. The flow guiding component has an inlet and an outlet. The inlet communicates with the dehumidifying component, and the outlet communicates with the external space of the first wall away from the receiving space.

2. The energy storage device according to claim 1, characterized in that, The cabinet has a top surface and a bottom surface along its height. The distance from the inlet to the bottom surface is greater than the distance from the outlet to the bottom surface. At least part of the flow guiding component located between the inlet and the outlet is inclined toward the side where the outlet is located.

3. The energy storage device according to claim 1 or 2, characterized in that, The energy storage device also includes a snap-fit ​​component, which is disposed in the inner cavity and connected to the cabinet. The flow guiding component is detachably connected to the snap-fit ​​component.

4. The energy storage device according to claim 1 or 2, characterized in that, The first wall is provided with a first hole and a second hole. The flow guiding component is inserted into the first hole on the side where the outlet is located. The flow guiding component is sealed to the hole wall of the first hole. The side of the flow guiding component where the inlet is located protrudes from the first wall through the second hole.

5. The energy storage device according to claim 1 or 2, characterized in that, The cabinet includes a cabinet body and a cabinet door, which are openable. The cabinet door includes a first wall, and the dehumidification component is disposed on the cabinet door.

6. The energy storage device according to claim 1 or 2, characterized in that, The flow guiding component includes a first pipe and a second pipe, one of which is inserted into and connected to the other. The inlet is located in the second pipe, and the outlet is located in the first pipe. The first pipe is at least partially located in the inner cavity.

7. The energy storage device according to claim 6, characterized in that, The hardness of the first pipeline is greater than that of the second pipeline.

8. The energy storage device according to claim 6, characterized in that, The first pipeline includes a first sub-pipe section, a second sub-pipe section, and a third sub-pipe section. The second sub-pipe section intersects and is connected to the first and third sub-pipe sections respectively. The first sub-pipe section is connected to the second pipeline. The outlet is located in the third sub-pipe section.

9. The energy storage device according to claim 8, characterized in that, The first sub-pipe segment is inclined, and along the height direction of the cabinet, the height of the end of the first sub-pipe segment that connects to the second pipe is higher than the height of the end that connects to the second sub-pipe segment.

10. The energy storage device according to claim 8 or 9, characterized in that, The third sub-pipe segment is inclined, and along the height direction of the cabinet, the height of the end of the third sub-pipe segment that connects to the second sub-pipe segment is higher than the height of the end of the third sub-pipe segment where the outlet is located.

11. The energy storage device according to claim 6, characterized in that, The first conduit includes a metal tube, and the second conduit includes a flexible transparent tube.

12. An energy storage system, characterized in that, It includes a power conversion device and an energy storage device as described in any one of claims 1 to 11, wherein the power conversion device is used to electrically connect a power generation device and the energy storage device.

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