Energy storage device, energy storage system and charging network

Abstract

The application provides an energy storage device, an energy storage system and a charging network. The energy storage device comprises a frame body and a battery device. The frame body comprises a supporting component. The battery device is arranged along a first direction and carried on the supporting component. The battery device is movably connected to the supporting component. The battery device is configured to be movably arranged along a second direction relative to the supporting component. The first direction intersects the second direction. The supporting component comprises a guide rail and a locking member. The guide rail is arranged along the second direction. The battery device is slidably connected to the guide rail. The locking member is connected to an end of the guide rail along the second direction. The locking member is used to limit the movement of the battery device when the battery device moves to a first preset position. According to the application, the maintenance efficiency of the energy storage device can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage device, an energy storage system and a charging network. Background Technology

[0002] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To improve the stability of electricity supply and ensure the normal operation of production and daily life, energy storage devices are needed. As devices that cyclically store and release electrical energy, energy storage devices are used to store electrical energy or supply the stored energy to electrical devices through charging or discharging. Energy storage devices are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0003] In the development of energy storage technology, how to improve the maintenance efficiency of energy storage devices is an ongoing research direction. Utility Model Content

[0004] In view of the above problems, this application provides an energy storage device, an energy storage system and a charging network, which can effectively improve the maintenance efficiency of the energy storage device.

[0005] In a first aspect, embodiments of this application provide an energy storage device, which includes a frame and a battery device. The frame includes a support member, and the battery device is disposed along a first direction and supported by the support member. The battery device is movably connected to the support member and configured to be movable relative to the support member along a second direction, where the first and second directions intersect. The support member includes a guide rail and a locking member. The guide rail extends along the second direction, and the battery device is slidably connected to the guide rail. The locking member is connected to the end of the guide rail along the second direction and is used to restrict the movement of the battery device when it moves to a first preset position.

[0006] The above technical solution allows the battery device to be movably connected to the supporting component, enabling the battery device to move relative to the supporting component in a second direction. When maintenance of the energy storage device is required, the operator can remove at least part of the battery device from the frame, exposing the area to be maintained to the external space, which facilitates the operator to perform inspection, replacement or connection operations.

[0007] In this way, maintenance of the battery device can be carried out without the need for overall hoisting of the energy storage device, extensive disassembly of the frame, or the use of complex tooling. This can significantly reduce the difficulty of maintenance, shorten the maintenance time, and improve the maintenance efficiency of the energy storage device.

[0008] The guide rail effectively limits the movement path of the battery pack, ensuring it moves out of the frame in a predetermined direction during maintenance. This reduces the risk of misalignment during movement and significantly improves the smoothness of the battery pack's movement. Furthermore, the guide rail boasts advantages such as simple structure, reliability, ease of manufacturing, and maintenance. By incorporating locking mechanisms, the battery pack can be reliably stopped when it reaches the first preset position, making its movement more controllable and reducing the risk of it falling off due to inertia or misoperation during movement, thus enhancing maintenance reliability.

[0009] In some embodiments of the first aspect, there are multiple guide rails, including a first guide rail and a second guide rail. The first guide rail and the second guide rail are spaced apart along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0010] By setting multiple guide rails, the force support range of the battery device can be increased, and the load during the movement of the battery device can be distributed, so that the force on the battery device is more balanced and the movement trajectory is more stable when the battery device moves.

[0011] In some embodiments of the first aspect, the supporting component further includes a first beam connected between the first guide rail and the second guide rail.

[0012] By setting the first beam, the stability of the first and second guide rails can be improved, so that the first and second guide rails can maintain good parallelism and support stability when the battery device moves, thereby reducing the risk of jamming, tilting or shaking during the movement of the battery device.

[0013] In some embodiments of the first aspect, the guide rail includes a support and a rolling element, the support having a channel extending in a second direction, at least a portion of the rolling element being disposed within the channel, the rolling element being configured to be rotatable relative to the support, the axis of rotation of the rolling element being parallel to a third direction, the battery device abutting against the rolling element, and the first direction, the second direction, and the third direction being perpendicular to each other.

[0014] The above settings can significantly reduce the frictional resistance during the movement of the battery device, making the movement smoother and less strenuous, thereby further improving the maintenance efficiency of the energy storage device.

[0015] In some embodiments of the first aspect, the locking member includes a connector and a latch, the connector being connected to a guide rail, and the latch being movably connected to the connector. The locking member has a first state and a second state; in the first state, the latch is located within the movement path of the battery device; in the second state, the latch is located outside the movement path of the battery device. When the battery device moves to a first preset position, the locking member is in the first state; during the movement of the battery device, the locking member is in the second state.

[0016] The locking tongue can switch the locking element between the first and second states with a small structural stroke, so that the locking element can limit the battery device without occupying a large installation space.

[0017] In some embodiments of the first aspect, the battery device is provided with a boss that protrudes from the bottom of the battery device, and the battery device is movably connected to the supporting member via the boss.

[0018] By setting a boss at the bottom of the battery device, a gap can be formed between the bottom of the battery device and the supporting component, reducing the contact area between the battery device and the supporting component, reducing the frictional resistance during the movement of the battery device, and improving the smoothness of the movement of the battery device.

[0019] In some embodiments of the first aspect, the supporting member includes a guide rail extending along a second direction. The guide rail includes a support and a rolling element. The support has a channel extending along the second direction, at least a portion of the rolling element is disposed within the channel, and the rolling element is configured to rotatably oriented relative to the support. The axis of rotation of the rolling element is parallel to a third direction, and a boss abuts against the rolling element. The first direction, the second direction, and the third direction are perpendicular to each other.

[0020] The above settings can further reduce the frictional resistance during the movement of the battery device, making the battery device move more smoothly and effortlessly, thereby further improving the maintenance efficiency of the energy storage device.

[0021] In some embodiments of the first aspect, the rolling element is integrally disposed within the channel, and at least a portion of the boss is disposed within the channel.

[0022] The above technical solution can reduce the space occupied in the first direction after the battery device and the supporting component are combined, thereby improving the compactness of the internal structure of the energy storage device.

[0023] In some embodiments of the first aspect, there are multiple supporting components, which are spaced apart along a first direction, forming an accommodating space between adjacent supporting components, and at least a portion of the battery device is disposed within the accommodating space. The frame also includes a second beam, which is disposed along a third direction with the supporting components and connects the multiple supporting components, with the first direction, the second direction, and the third direction being perpendicular to each other.

[0024] By setting a second beam, multiple supporting components can be connected into a whole structure. This reduces the possibility of individual supporting components deforming independently when bearing the battery device or subjected to pulling force or vibration load, thereby improving the overall structural stability of the energy storage device.

[0025] In some embodiments of the first aspect, there are multiple second beams, which are spaced apart along a second direction, thereby further improving the overall structural stability of the energy storage device.

[0026] In some embodiments of the first aspect, the frame further includes a third beam, which is disposed along a third direction with the supporting member and connected between two adjacent second beams.

[0027] By setting a third beam, two adjacent second beams can be connected as a whole, reducing the possibility of the second beam bending, shifting or twisting when subjected to tensile force or vibration impact, thereby further improving the overall structural stability of the energy storage device.

[0028] In some embodiments of the first aspect, the angle between the orthographic projection of the third beam and the orthographic projection of the second beam in the same plane perpendicular to the third direction is an oblique angle.

[0029] The above technical solution can disperse and transfer part of the load on the frame, reduce the risk of excessive stress concentration, optimize the overall force path of the frame, and thus further improve the overall structural stability and vibration resistance of the energy storage device.

[0030] In some embodiments of the first aspect, the battery device is provided with a push-pull member that protrudes from the end face of the battery device along the second direction.

[0031] By incorporating push-pull components, operators can quickly identify the point of force application and the push-pull force can be made closer to the direction of movement of the battery device along the second direction, reducing jamming, tilting, or shaking caused by eccentric force application, thereby improving the convenience and reliability of maintenance operations.

[0032] In some embodiments of the first aspect, the energy storage device further includes a lighting component for activating illumination when the battery device moves to a second preset position.

[0033] By installing lighting components, the risk of insufficient light affecting maintenance judgments can be reduced, thereby improving the reliability and efficiency of energy storage device maintenance operations.

[0034] In some embodiments of the first aspect, the energy storage device further includes a heat dissipation component disposed on the outside of the frame, and the battery device includes a heat exchanger, with the heat dissipation component connected to the heat exchanger.

[0035] By placing the heat dissipation components on the outside of the frame, the internal installation space occupied by the heat dissipation components can be reduced. At the same time, the outside of the frame has relatively better air circulation conditions, which facilitates heat exchange between the heat dissipation components and the external environment, thereby improving heat dissipation efficiency.

[0036] In some embodiments of the first aspect, the energy storage device further includes a cabinet having an opening at one end along the second direction, and a frame disposed within the cabinet.

[0037] By installing a cabinet, the cabinet can protect the internal frame and battery devices, reducing the impact of external environmental factors such as dust, moisture, foreign objects, or external impacts on the battery devices, thereby improving the reliability of the energy storage device.

[0038] Secondly, this application provides an energy storage system, which includes an energy conversion system and an energy storage device provided in any embodiment of the first aspect. The energy conversion system is connected to the energy storage device to convert the current input to the energy storage device or output from the energy storage device into energy.

[0039] Thirdly, this application provides a charging network, which includes a charging pile and an energy storage device provided in any embodiment of the first aspect or an energy storage system provided in any embodiment of the second aspect, wherein the energy storage device is used to provide electrical energy to the charging pile.

[0040] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application 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 application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0041] 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 this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the charging network structure in some embodiments of this application; Figure 2 This is a schematic diagram of the energy storage system in some embodiments of this application; Figure 3 This is a three-dimensional structural schematic diagram of an energy storage device provided in some embodiments of this application; Figure 4 This is a three-dimensional structural diagram of the frame of an energy storage device provided in some embodiments of this application; Figure 5 A three-dimensional structural schematic diagram of a support component for an energy storage device provided in some embodiments of this application; Figure 6 for Figure 5 A magnified schematic diagram of the structure at point M; Figure 7 This is a front view structural schematic diagram of an energy storage device provided in some embodiments of this application; Figure 8 for Figure 7 A magnified schematic diagram of the structure at point N.

[0042] The reference numerals in the detailed embodiments are as follows: 100. Energy storage devices; 200. Energy conversion systems; 300. Power generation equipment; 400. Charging piles; 500. Connectors; 10. Frame; 11. Supporting component; 111. Guide rail; 111a. First guide rail; 111b. Second guide rail; 1111. Support component; 1112. Rolling component; 1113. Channel; 112. First beam; 113. Locking component; 1131. Connecting component; 1132. Locking tongue; 12. Second beam; 13. Third beam; 20. Battery assembly; 30. Boss; 40. Sliding component; 50. Cabinet; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, rather than to describe a specific order or hierarchy.

[0045] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0048] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0049] In this application, "multiple" means two or more (including two).

[0050] In this application, the term "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering.

[0051] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To improve the stability of electricity supply and ensure the normal operation of production and daily life, energy storage devices are needed. As devices that cyclically store and release electrical energy, energy storage devices are used to store electrical energy or supply the stored energy to electrical devices through charging or discharging. Energy storage devices are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0052] In the development of energy storage technology, how to improve the maintenance efficiency of energy storage devices is an ongoing research direction.

[0053] Currently, in existing energy storage devices, the battery units are mostly fixedly installed on a frame, with a closed structure and compact internal space. When the energy storage device fails, it is necessary to hoist the entire device or use specific tooling to access the internal battery units. This operation is complex and time-consuming, making the overall maintenance of the energy storage device difficult and inefficient.

[0054] In view of this, this application designs an energy storage device, which includes a frame and a battery device. The frame includes a support member. The battery device is arranged along a first direction and supported by the support member. The battery device is movably connected to the support member. The battery device is configured to be movable relative to the support member along a second direction. The first direction and the second direction intersect.

[0055] By movably connecting the battery unit to the support component, the battery unit can move relative to the support component in a second direction. When maintenance of the energy storage device is required, the operator can remove at least a portion of the battery unit from the frame, exposing the area to be maintained to the external space, which facilitates the operator's inspection, replacement or connection operations.

[0056] In this way, maintenance of the battery device can be carried out without the need for overall hoisting of the energy storage device, extensive disassembly of the frame, or the use of complex tooling. This can significantly reduce the difficulty of maintenance, shorten the maintenance time, and improve the maintenance efficiency of the energy storage device.

[0057] Figure 1 This is a schematic diagram of the charging network structure in some embodiments of this application. Figure 2 This is a schematic diagram of the energy storage system in some embodiments of this application.

[0058] like Figure 1 and Figure 2 As shown, this application embodiment provides a charging network including a charging pile 400 and an energy storage device 100. The charging pile 400 is electrically connected to the energy storage device 100, which provides electrical energy to the charging pile 400. The charging pile 400 is electrically connected to a battery device in the energy storage device 100 via a cable, and the battery device can provide its stored electrical energy to the charging pile 400. The charging pile 400 has one or more connectors 500 for connecting to electrical equipment (such as a vehicle), thereby enabling the charging equipment to receive additional power.

[0059] The energy storage device 100 can be located inside the charging pile (e.g., an integrated energy storage and charging unit) or outside the charging pile.

[0060] In some embodiments, the energy storage system may include one or more energy storage devices 100 and a power converter system (PCS). The power converter system 200 is used to connect the power generation device 300, the power grid, or a load to the energy storage device 100. The power generation device 300 generates electrical energy, the energy storage device 100 stores electrical energy, and the power converter system 200 converts the current input to the energy storage device 100 or the current output from the energy storage device 100 into energy. The electrical energy generated by the power generation device 300 can be stored in the energy storage device 100 through the power converter system 200, and the electrical energy stored in the energy storage device 100 can also be output to the load or the power grid through the power converter system 200. As an example, the power generation device 300 may specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc. The specific type of the power generation device 300 is not limited in this application.

[0061] In some embodiments, the charging network may include a charging pile 400 and an energy storage system, wherein the charging pile 400 is electrically connected to the energy storage device 100 in the energy storage system.

[0062] This application provides an energy storage device 100, including one or more battery clusters to increase the voltage and capacity of the energy storage device 100. The battery cluster may include multiple battery devices, which are connected in series via a busbar to increase the voltage of the energy storage device 100. When the energy storage device 100 includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device 100.

[0063] The energy storage device 100 can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems, etc. The energy storage device 100 can store electrical energy as needed and output it when appropriate. For example, the energy storage device 100 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 application embodiment can be any power system that requires the use of the energy storage device 100.

[0064] In some embodiments, the energy storage device 100 is an energy storage container or an energy storage cabinet.

[0065] In some embodiments, the energy storage device 100 may include a frame and one or more battery clusters housed in the frame.

[0066] In some embodiments, the energy storage device 100 may 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.

[0067] 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.

[0068] As an example, the main control module can serve as the battery management unit for the battery cluster, used to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For instance, it can control the charging and discharging current and voltage of the battery cluster. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0069] As an example, the central control module can serve as the battery management unit of the energy storage device 100, used to monitor and manage the energy storage device 100. The central control module can monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage device. For example, it can control the charging and discharging current and voltage of the energy storage device 100. 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.

[0070] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., used to detect, alarm, or extinguish fires in the energy storage system.

[0071] As an example, the power distribution module can be used to distribute power to the power supply module of the energy storage device 100.

[0072] Figure 3 This is a three-dimensional structural diagram of an energy storage device provided in some embodiments of this application. Figure 4 This is a three-dimensional structural diagram of the frame of an energy storage device provided in some embodiments of this application. Figure 5 This is a three-dimensional structural diagram of a support component for an energy storage device provided in some embodiments of this application. Figure 6 for Figure 5 A magnified schematic diagram of the structure at point M.

[0073] Continue to refer to Figures 3 to 6This application provides an energy storage device 100, which includes a frame 10 and a battery device 20. The frame 10 includes a support member 11. The battery device 20 is disposed along a first direction X and supported by the support member 11. The battery device 20 is movably connected to the support member 11. The battery device 20 is configured to be movable relative to the support member 11 along a second direction Y. The first direction X and the second direction Y intersect.

[0074] The frame 10 serves as the mounting foundation and load-bearing skeleton for the energy storage device 100. For example, the frame 10 can be made of steel, aluminum, or aluminum alloy, etc.

[0075] The supporting component 11 is used to support the battery device 20. For example, the supporting component 11 may be a plate structure, a beam structure, or a frame structure, etc.

[0076] The battery device 20 may include one or more battery cell assemblies for providing voltage and capacity.

[0077] A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connection via a busbar. Mixed connection refers to multiple battery cells being connected in both series and parallel connections.

[0078] A battery cell can be a rechargeable battery cell, which refers to a battery cell that can be recharged after being discharged to activate the active materials and continue to be used.

[0079] As an example, a single battery cell can be a lithium-ion battery cell, a sodium-ion battery cell, a sodium-lithium-ion battery cell, a lithium metal battery cell, a sodium metal battery cell, a lithium-sulfur battery cell, a magnesium-ion battery cell, a nickel-metal hydride battery cell, a nickel-cadmium battery cell, a lead-acid battery cell, etc.

[0080] As an example, a battery cell can be a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic battery cells, such as hexagonal prismatic battery cells.

[0081] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells into a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0082] In some embodiments, the battery device 20 may be a battery pack, which includes a housing and one or more battery cell assemblies housed within the housing. As an example, the battery cell assembly may be a battery module, which can be housed within the housing by securing the battery module to the housing. Alternatively, the battery cell assembly may be housed within the housing by directly securing multiple battery cells to the housing.

[0083] The above technical solution allows the battery device 20 to be movably connected to the support member 11, enabling the battery device 20 to move relative to the support member 11 in the second direction Y. When maintenance of the energy storage device 100 is required, the operator can remove at least a portion of the battery device 20 from the frame 10, exposing the area to be maintained to the external space, which facilitates the operator to perform inspection, replacement or connection operations.

[0084] In this way, maintenance of the battery device 20 can be carried out without the need for overall hoisting of the energy storage device 100, extensive disassembly of the frame 10, or the use of complex tooling. This can significantly reduce maintenance difficulty, shorten maintenance time, and improve the maintenance efficiency of the energy storage device 100.

[0085] In some embodiments, flame-retardant components are provided inside the frame 10, which can improve the reliability of the energy storage device 100.

[0086] For example, the flame-retardant material can be rock wool or ceramic fiber, etc.

[0087] In some embodiments, the first direction X is perpendicular to the second direction Y.

[0088] In some embodiments, the supporting member 11 includes a guide rail 111 extending along a second direction Y, and the battery device 20 is slidably connected to the guide rail 111.

[0089] For example, the cross-sectional shape of the guide rail 111 perpendicular to the second direction Y can be I-shaped, slotted, T-shaped, U-shaped, or rectangular, etc.

[0090] The guide rail 111 can better define the movement path of the battery device 20, allowing the battery device 20 to be moved out of the frame 10 in a predetermined direction during maintenance, thereby reducing the risk of the battery device 20 deviating during movement and effectively improving the smoothness of the movement of the battery device 20. In addition, the guide rail 111 has the advantages of simple structure, mature and reliable, and easy to manufacture and maintain.

[0091] In some embodiments, there are multiple guide rails 111, including a first guide rail 111a and a second guide rail 111b. The first guide rail 111a and the second guide rail 111b are spaced apart along a third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0092] By setting multiple guide rails 111, the force support range of the battery device 20 can be increased, and the load during the movement of the battery device 20 can be distributed, so that the force on the battery device 20 is more balanced and the movement trajectory is more stable when it moves.

[0093] In some embodiments, the first guide rail 111a and the second guide rail 111b are respectively located at the edge of the entire supporting component 11 along the third direction Z.

[0094] In some embodiments, the supporting component 11 further includes a first beam 112, which is connected between the first guide rail 111a and the second guide rail 111b.

[0095] The first beam 112 can be directly connected between the first guide rail 111a and the second guide rail 111b, or it can be indirectly connected between the first guide rail 111a and the second guide rail 111b through other components. For example, the first beam 112 can be connected between the first guide rail 111a and the second guide rail 111b by welding, bolting, or riveting.

[0096] By setting the first beam 112, the stability of the first guide rail 111a and the second guide rail 111b can be improved, so that when the battery device 20 moves, the first guide rail 111a and the second guide rail 111b can maintain good parallelism and support stability, thereby reducing the risk of jamming, tilting or shaking during the movement of the battery device 20.

[0097] In some embodiments, the first beam 112 and the guide rail 111 are integrally formed, which can simplify the manufacturing process and reduce costs.

[0098] In some embodiments, the guide rail 111 includes a support member 1111 and a roller member 1112. The support member 1111 is provided with a channel 1113 extending along the second direction Y. At least a portion of the roller member 1112 is disposed in the channel 1113. The roller member 1112 is configured to be rotatable relative to the support member 1111. The axis of rotation of the roller member 1112 is parallel to the third direction Z. The battery device 20 abuts against the roller member 1112. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0099] The support member 1111 can serve as the main load-bearing structure of the guide rail 111, used to install and restrict the position of the rolling element 1112. For example, the rolling element 1112 can be a roller, ball, or column, etc.

[0100] The rolling element 1112 can be partially disposed within the channel 1113 or entirely disposed within the channel 1113.

[0101] When the battery device 20 moves along the second direction Y, the rolling element 1112 can rotate relative to the support member 1111 under the drive of the battery device 20, thereby converting the sliding friction between the battery device 20 and the guide rail 111 into rolling friction.

[0102] The above settings can significantly reduce the frictional resistance during the movement of the battery device 20, making the battery device 20 move more smoothly and effortlessly, thereby further improving the maintenance efficiency of the energy storage device 100.

[0103] In some embodiments, the number of rolling elements 1112 is multiple, and the multiple rolling elements 1112 are spaced apart along the second direction Y.

[0104] In some embodiments, the supporting member 11 further includes a locking member 113, which is connected to the end of the guide rail 111 along the second direction Y. The locking member 113 is used to restrict the movement of the battery device 20 when the battery device 20 moves to a first preset position.

[0105] The locking element 113 can be directly connected to the guide rail 111, or it can be indirectly connected to the guide rail 111 through other components. For example, the locking element 113 can be connected to the guide rail 111 by welding, bolting, or riveting.

[0106] For example, the locking element 113 may include a stop, a limiting plate, a limiting pin, a latch, a pin, or a resilient locking structure.

[0107] For example, the first preset position can be set according to the maintenance and installation requirements of the battery device 20. The first preset position may include a first sub-position and / or a second sub-position, wherein the first sub-position can be the maintenance position after the battery device 20 is pulled out along the second direction Y. When the battery device 20 is in the first sub-position, the battery device 20 can be exposed to the outside of the frame 10 or in a position that is easy for the operator to access, thereby facilitating the operator to perform maintenance operations such as inspection, replacement, wiring, or pipeline connection of the battery device 20. The second sub-position can be the working position after the battery device 20 is pushed back along the second direction Y. When the battery device 20 is in the second sub-position, the battery device 20 is housed inside the frame 10 and can maintain a predetermined cooperative state with the frame 10, electrical connection structure, cooling pipeline, or locking structure to meet normal operation requirements.

[0108] Thus, by setting the locking component 113, the above technical solution can reliably limit the battery device 20 when it reaches the first preset position, making the movement of the battery device 20 more controllable, reducing the risk of the battery device 20 falling off due to inertia or misoperation during movement, and improving maintenance reliability.

[0109] In some embodiments, the locking member 113 includes a connector 1131 and a latch 1132. The connector 1131 is connected to the guide rail 111, and the latch 1132 is movably connected to the connector 1131. The locking member 113 has a first state and a second state. In the first state, the latch 1132 is located within the movement path of the battery device 20. In the second state, the latch 1132 is located outside the movement path of the battery device 20. When the battery device 20 moves to a first preset position, the locking member 113 is in the first state; during the movement of the battery device 20, the locking member 113 is in the second state.

[0110] The connector 1131 can serve as the mounting base for the locking member 113, used to stably fix the locking member 113 onto the guide rail 111. The locking tongue 1132 is used to cooperate with the battery device 20 to restrict the movement of the battery device 20 when needed.

[0111] The connector 1131 can be directly connected to the guide rail 111, or it can be indirectly connected to the guide rail 111 through other components. For example, the connector 1131 can be connected to the guide rail 111 by welding, bolting, or riveting.

[0112] For example, in the first state, the locking tongue 1132 can engage with the locking portion, limiting groove, abutment protrusion or locking hole on the battery device 20, thereby restricting the movement of the battery device 20; in the second state, the locking tongue 1132 is spaced apart from the locking portion, limiting groove, abutment protrusion or locking hole on the battery device 20, so that the battery device 20 can move smoothly along the guide rail 111.

[0113] When the battery device 20 moves to the first preset position, the locking member 113 is in the first state. At this time, the locking tongue 1132 is located within the movement path of the battery device 20, which can limit the battery device 20 to the first preset position and prevent the battery device 20 from continuing to move due to inertia, vibration or misoperation. For example, when the first preset position is the maintenance position, the locking tongue 1132 can prevent the battery device 20 from being pulled out excessively; when the first preset position is the working position, the locking tongue 1132 can prevent the battery device 20 from unexpectedly sliding inside the frame 10.

[0114] During the movement of the battery device 20, the locking member 113 is in the second state. At this time, the locking tongue 1132 is located outside the movement path of the battery device 20 and will not interfere with the movement of the battery device 20 along the second direction Y, so that the battery device 20 can be moved out of the frame 10 or pushed back into the frame 10 under the guidance of the guide rail 111.

[0115] The locking tongue 1132 can be controlled manually or electrically to switch the locking member 113 between the first and second states.

[0116] The locking tongue 1132 can switch the locking member 113 between the first and second states with a small structural stroke, so that the locking member 113 can limit the battery device 20 without occupying a large installation space.

[0117] Figure 7 This is a front view structural diagram of an energy storage device provided in some embodiments of this application. Figure 8 for Figure 7 A magnified schematic diagram of the structure at point N.

[0118] Continue to refer to Figures 7 to 8 In some embodiments, the battery device 20 is provided with a boss 30, which protrudes from the bottom of the battery device 20, and the battery device 20 is movably connected to the support member 11 through the boss 30.

[0119] The number of protrusions 30 can be one or more. When there are multiple protrusions 30, the multiple protrusions 30 can be arranged at intervals along the third direction Z to cooperate with different support areas on the supporting component 11, thereby improving the force balance and attitude stability of the battery device 20 during movement.

[0120] By providing a boss 30 at the bottom of the battery device 20, a gap can be formed between the bottom of the battery device 20 and the supporting component 11, reducing the contact area between the battery device 20 and the supporting component 11, reducing the frictional resistance during the movement of the battery device 20, and improving the smoothness of the movement of the battery device 20.

[0121] In some embodiments, the supporting member 11 includes a guide rail 111 extending along a second direction Y. The guide rail 111 includes a support member 1111 and a rolling member 1112. The support member 1111 is provided with a channel 1113 extending along the second direction Y. At least a portion of the rolling member 1112 is disposed within the channel 1113. The rolling member 1112 is configured to be rotatable relative to the support member 1111. The axis of rotation of the rolling member 1112 is parallel to a third direction Z. A boss 30 abuts against the rolling member 1112. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0122] The above settings can further reduce the frictional resistance during the movement of the battery device 20, making the battery device 20 move more smoothly and effortlessly, thereby further improving the maintenance efficiency of the energy storage device 100.

[0123] In some embodiments, the rolling element 1112 is entirely disposed within the channel 1113, and at least a portion of the boss 30 is disposed within the channel 1113.

[0124] For example, the boss 30 may be partially or entirely disposed within the channel 1113.

[0125] The above technical solution can reduce the space occupied in the first direction X after the battery device 20 and the supporting component 11 are combined, thereby improving the compactness of the internal structure of the energy storage device 100.

[0126] In some embodiments, there are multiple supporting members 11, which are spaced apart along a first direction X, forming an accommodating space between adjacent supporting members 11, and at least a portion of the battery device 20 is disposed within the accommodating space. The frame 10 also includes a second beam 12, which is disposed along a third direction Z with the supporting members 11 and connects the multiple supporting members 11, with the first direction X, the second direction Y, and the third direction Z being perpendicular to each other.

[0127] Each supporting component 11 can be used to carry the corresponding battery device 20 and provide a supporting foundation for the movement of the battery device 20 along the second direction Y.

[0128] The second beam 12 can be directly connected to the supporting component 11, or it can be indirectly connected to the supporting component 11 through other components. For example, the second beam 12 can be connected to the supporting component 11 by welding, bolting, or riveting.

[0129] By setting the second beam 12, multiple supporting components 11 can be connected into an integral structure, which can reduce the possibility of individual supporting components 11 undergoing independent deformation when carrying the battery device 20 or being subjected to pulling force or vibration load, thereby improving the overall structural stability of the energy storage device 100.

[0130] In some embodiments, the number of second beams 12 is multiple, and the multiple second beams 12 are spaced apart along the second direction Y, which can further improve the overall structural stability of the energy storage device 100.

[0131] In some embodiments, the frame 10 further includes a third beam 13, which is disposed along the third direction Z with the supporting member 11 and connected between two adjacent second beams 12.

[0132] The third beam 13 can be directly connected to the second beam 12, or it can be indirectly connected to the second beam 12 through other components. For example, the third beam 13 can be connected to the second beam 12 by welding, bolting, or riveting.

[0133] By setting a third beam 13, two adjacent second beams 12 can be connected as a whole, reducing the possibility of the second beams 12 bending, shifting or twisting when subjected to pulling force or vibration impact, thereby further improving the overall structural stability of the energy storage device 100.

[0134] In some embodiments, in the same plane perpendicular to the third direction Z, the angle between the orthographic projection of the third beam 13 and the orthographic projection of the second beam 12 is an oblique angle.

[0135] For example, the third beam 13 is connected between two adjacent second beams 12 and extends at an incline relative to the second beams 12, so that the third beam 13 and the second beams 12 can form a force-bearing structure similar to a triangular support, which has good resistance to deformation.

[0136] The above technical solution can disperse and transfer part of the load on the frame 10, reduce the risk of excessive stress concentration, optimize the overall force path of the frame 10, and thus further improve the overall structural stability and vibration resistance of the energy storage device 100.

[0137] In some embodiments, the battery device 20 is provided with a push-pull member 40, which protrudes from the end face of the battery device 20 along the second direction Y.

[0138] For example, the push-pull member 40 can be a handle, pull handle, lever, lug, grip groove or other structure that facilitates gripping and applying force.

[0139] By setting the push-pull component 40, operators can quickly identify the force application point and make the push-pull force closer to the movement direction of the battery device 20 along the second direction Y, reducing jamming, tilting or shaking caused by eccentric force application, thereby improving the convenience and reliability of maintenance operations.

[0140] In some embodiments, the energy storage device 100 further includes a lighting component for activating lighting when the battery device 20 moves to a second preset position.

[0141] For example, the lighting component may be mounted on the frame 10, the support component 11, or the battery device 20. The lighting component may be a light strip, a light bulb, or a surface light source, etc.

[0142] By installing lighting components, the risk of insufficient light affecting maintenance judgment can be reduced, thereby improving the reliability and efficiency of maintenance operations for the energy storage device 100.

[0143] In some embodiments, the lighting component may also be activated before the battery device 20 is moved to illuminate the environment around the battery device 20, making it easier for the operator to confirm the current status of the battery device 20 and reducing the risk of misoperation due to insufficient light.

[0144] In some embodiments, the lighting component can be electrically connected to a position detection element. The position detection element can be a limit switch, proximity switch, Hall effect sensor, photoelectric sensor, or micro switch. When the position detection element detects that the battery device 20 has moved to a second preset position, it controls the lighting component to automatically start; when the battery device 20 leaves the second preset position or is pushed back into the frame 10, the lighting component can automatically turn off. This reduces the number of manual switching steps and lowers the energy consumption of the lighting component during prolonged periods of inactivity.

[0145] In some embodiments, the energy storage device 100 further includes a heat dissipation component disposed on the outside of the frame 10, and the battery device 20 includes a heat exchanger, with the heat dissipation component connected to the heat exchanger.

[0146] For example, the heat dissipation component can be an air-cooled radiator, a liquid-cooled radiator, a condenser, a heat exchange fan, or other structures capable of heat exchange.

[0147] By placing the heat dissipation components on the outside of the frame 10, the internal installation space occupied by the heat dissipation components can be reduced. At the same time, the outside of the frame 10 has relatively better air circulation conditions, which facilitates heat exchange between the heat dissipation components and the external environment, thereby improving heat dissipation efficiency.

[0148] In some embodiments, the heat dissipation component is a plate-type heat sink.

[0149] In some embodiments, the energy storage device 100 further includes a cabinet 50, the end of which has an opening along the second direction Y, and a frame 10 is disposed inside the cabinet 50.

[0150] By setting up the cabinet 50, the cabinet 50 can provide protection for the internal frame 10 and battery device 20, reducing the impact of external environmental factors such as dust, moisture, foreign objects or external impacts on the battery device 20, thereby improving the reliability of the energy storage device 100.

[0151] In some embodiments, the cabinet 50 is connected to the frame 10.

[0152] In some embodiments, a door panel is provided at the opening of the cabinet 50, and the door panel is hinged to the cabinet 50.

[0153] In some embodiments, the energy storage device 100 further includes an electrical interface, which may be located at the rear of the cabinet 50.

[0154] The electrical interface is used to enable electrical and communication connections between the energy storage device 100 and external electrical equipment, control equipment, or other energy storage devices 100.

[0155] For example, the electrical interface may include a DC bus interface and a communication bus interface. The DC bus interface is used to connect to an external DC bus, converter, or the DC interface of an adjacent energy storage device 100 to realize the input, output, or parallel combination of electrical energy. The communication bus interface is used to communicate with the energy management system, battery management system, or adjacent energy storage device 100 to transmit operating status, fault information, control commands, or equalization management information.

[0156] By reserving standardized electrical interfaces at the rear of the cabinet 50, multiple energy storage devices 100 can be modularly connected in parallel without altering the main structure of a single energy storage device 100. This allows for flexible increases or decreases in the number of energy storage devices 100 based on actual power load, installation space, or energy storage capacity requirements, improving system configuration flexibility. Furthermore, it reduces wiring complexity and installation difficulty when connecting multiple cabinets, enhancing the expansion efficiency, maintenance convenience, and operational reliability of the energy storage system.

[0157] In some embodiments, the electrical interfaces can adopt a standardized interface structure. For example, the DC bus interface and the communication bus interface can be arranged according to preset installation positions, wiring specifications, plug-in directions, and communication protocols, enabling multiple energy storage devices 100 to be quickly connected and parallel expanded. Thus, multiple energy storage devices 100 can be connected through corresponding electrical interfaces to form a multi-cabinet joint system to meet the energy storage needs of different capacity levels and application scenarios.

[0158] According to some embodiments of this application, this application also provides an energy storage system, which includes an energy conversion system 200 and an energy storage device 100 of any of the above schemes. The energy conversion system 200 is connected to the energy storage device 100 to convert the current input to the energy storage device 100 or output from the energy storage device 100 into energy.

[0159] According to some embodiments of this application, this application also provides a charging network, which includes a charging pile 400 and an energy storage device 100 or an energy storage system of any of the above schemes, wherein the energy storage device 100 is used to provide electrical energy to the charging pile 400.

[0160] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions. All technical features and optional technical features of this application can be combined to form new technical solutions.

[0161] To better understand the energy storage device 100 provided in the embodiments of this application, based on the same inventive concept, an embodiment of the above-mentioned energy storage device 100 in practical application is provided for description.

[0162] This application provides an energy storage device 100, which includes a frame 10 and a battery device 20. The frame 10 includes a support member 11. The battery device 20 is disposed along a first direction X and supported by the support member 11. The battery device 20 is movably connected to the support member 11 and is configured to be movable relative to the support member 11 along a second direction Y.

[0163] The supporting component 11 includes a guide rail 111 and a locking component 113. The guide rail 111 extends along the second direction Y. There are multiple guide rails 111, including a first guide rail 111a and a second guide rail 111b. The first guide rail 111a and the second guide rail 111b are spaced apart along the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0164] The guide rail 111 includes a support member 1111 and a rolling member 1112. The support member 1111 is provided with a channel 1113 extending along the second direction Y. At least a portion of the rolling member 1112 is disposed within the channel 1113. The rolling member 1112 is configured to rotate relative to the support member 1111. The axis of rotation of the rolling member 1112 is parallel to the third direction Z. The battery device 20 abuts against the rolling member 1112. The first direction X, the second direction Y, and the third direction Z are all perpendicular to each other. The battery device 20 is provided with a boss 30, which protrudes from the bottom of the battery device 20 and abuts against the rolling member 1112.

[0165] A locking member 113 is connected to the end of the guide rail 111 along the second direction Y. The locking member 113 is used to restrict the movement of the battery device 20 when it moves to a first preset position. The locking member 113 includes a connecting member 1131 and a locking tongue 1132. The connecting member 1131 is connected to the guide rail 111, and the locking tongue 1132 is movably connected to the connecting member 1131. The locking member 113 has a first state and a second state. In the first state, the locking tongue 1132 is located within the movement path of the battery device 20. In the second state, the locking tongue 1132 is located outside the movement path of the battery device 20. When the battery device 20 moves to the first preset position, the locking member 113 is in the first state; during the movement of the battery device 20, the locking member 113 is in the second state.

[0166] The above technical solution allows the battery device 20 to be movably connected to the support member 11, enabling the battery device 20 to move relative to the support member 11 in the second direction Y. When maintenance of the energy storage device 100 is required, the operator can remove at least a portion of the battery device 20 from the frame 10, exposing the area to be maintained to the external space, which facilitates the operator to perform inspection, replacement or connection operations.

[0167] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application 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 application, and they should all be covered within the scope of the claims and specification of this application. 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 application 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: The frame, including supporting components; A battery device is disposed along a first direction and supported on the support member, the battery device is movably connected to the support member, and the battery device is configured to be movable relative to the support member along a second direction, the first direction intersecting the second direction; The supporting component includes a guide rail and a locking member. The guide rail extends along the second direction, and the battery device is slidably connected to the guide rail. The locking member is connected to the end of the guide rail along the second direction and is used to restrict the movement of the battery device when the battery device moves to a first preset position.

2. The energy storage device according to claim 1, characterized in that, The number of guide rails is multiple, including a first guide rail and a second guide rail. The first guide rail and the second guide rail are spaced apart along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

3. The energy storage device according to claim 2, characterized in that, The supporting component also includes a first beam, which is connected between the first guide rail and the second guide rail.

4. The energy storage device according to claim 1, characterized in that, The guide rail includes a support member and a rolling member. The support member has a channel extending along the second direction. At least a portion of the rolling member is disposed within the channel. The rolling member is configured to be rotatable relative to the support member. The axis of rotation of the rolling member is parallel to a third direction. The battery device abuts against the rolling member. The first direction, the second direction, and the third direction are perpendicular to each other.

5. The energy storage device according to claim 1, characterized in that, The locking element includes a connector and a locking tongue. The connector is connected to the guide rail, and the locking tongue is movably connected to the connector. The locking member has a first state and a second state. In the first state, the locking tongue is located within the movement path of the battery device, and in the second state, the locking tongue is located outside the movement path of the battery device. When the battery device moves to the first preset position, the locking member is in the first state; During the movement of the battery device, the locking member is in the second state.

6. The energy storage device according to claim 1, characterized in that, The battery device is provided with a boss that protrudes from the bottom of the battery device, and the battery device is movably connected to the supporting component through the boss.

7. The energy storage device according to claim 6, characterized in that, The supporting component includes a guide rail, which extends along the second direction; The guide rail includes a support member and a rolling member. The support member is provided with a groove extending along the second direction. At least a portion of the rolling member is disposed within the groove. The rolling member is configured to be rotatable relative to the support member. The rotation axis of the rolling member is parallel to a third direction. The boss abuts against the rolling member. The first direction, the second direction, and the third direction are perpendicular to each other.

8. The energy storage device according to claim 7, characterized in that, The rolling element is integrally disposed within the channel, and at least a portion of the boss is disposed within the channel.

9. The energy storage device according to claim 1, characterized in that, The number of the supporting components is multiple, and the multiple supporting components are spaced apart along the first direction, forming an accommodating space between two adjacent supporting components, and at least a portion of the battery device is disposed within the accommodating space; The frame also includes a second beam, which is arranged along a third direction with the supporting component and connects to multiple supporting components. The first direction, the second direction, and the third direction are perpendicular to each other.

10. The energy storage device according to claim 9, characterized in that, There are multiple second beams, and these multiple second beams are spaced apart along the second direction.

11. The energy storage device according to claim 10, characterized in that, The frame also includes a third beam, which is arranged along the third direction with the supporting component and connected between two adjacent second beams.

12. The energy storage device according to claim 11, characterized in that, In the same plane perpendicular to the third direction, the angle between the orthographic projection of the third beam and the orthographic projection of the second beam is an oblique angle.

13. The energy storage device according to claim 1, characterized in that, The battery device is provided with a push-pull member, which protrudes from the end face of the battery device along the second direction.

14. The energy storage device according to claim 1, characterized in that, The energy storage device also includes a lighting component, which is used to activate the lighting when the battery device moves to a second preset position.

15. The energy storage device according to claim 1, characterized in that, The energy storage device also includes a heat dissipation component, which is disposed on the outside of the frame. The battery device includes a heat exchanger, and the heat dissipation component is connected to the heat exchanger.

16. The energy storage device according to any one of claims 1-15, characterized in that, The energy storage device also includes a cabinet, the end of which has an opening along the second direction, and the frame is disposed inside the cabinet.

17. An energy storage system, characterized in that, It includes an energy conversion system and an energy storage device as described in any one of claims 1-16, wherein the energy conversion system is connected to the energy storage device to convert the current input to or output from the energy storage device into energy.

18. A charging network, characterized in that, It includes a charging pile and an energy storage device as described in any one of claims 1-16 or an energy storage system as described in claim 17, wherein the energy storage device is used to provide electrical energy to the charging pile.

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