Battery rack, energy storage device, energy storage system and charging network

Abstract

The embodiment of the utility model discloses a battery rack, an energy storage device, an energy storage system and a charging network, and relates to the field of batteries. The battery rack comprises a frame, a tray and a fixing device, wherein the frame comprises a first opening; the tray enters and exits the frame through the first opening and is used for bearing the battery device; the fixing device is located on the frame and comprises a first baffle, and the first baffle is located at the first opening of the frame so as to limit the tray from moving out of the frame through the first opening; and / or the fixing device further comprises at least one fixing piece, and the fixing piece penetrates through the first through hole of the frame and the second through hole of the tray so as to fix the tray on the frame. According to the battery rack, the battery device can be fixed on the battery rack, and the stability and the assembling and disassembling convenience of the battery device are improved.

Description

Technical Field

[0001] This application relates to the field of batteries, and more specifically, to a battery rack, an energy storage device, an energy storage system, and a charging network. Background Art

[0002] In battery application scenarios, such as energy storage systems and uninterruptible power supplies, reliable devices are needed to store batteries. Existing battery placement devices have problems such as inconvenient battery loading and unloading and difficulty in fixing, which affect the safety and convenience of battery use. Summary of the Utility Model

[0003] Embodiments of this application provide a battery rack, an energy storage device, an energy storage system, and a charging network, which can fix the battery device on the battery rack and improve the stability and loading / unloading convenience of the battery device.

[0004] In a first aspect, this application provides a battery rack, including a frame, the frame including a first opening; a tray, the tray entering and exiting the frame through the first opening, the tray being used to carry a battery device; a fixing device located on the frame, the fixing device including a first baffle, the first baffle being located at the first opening of the frame to limit the tray from moving out of the frame through the first opening; and / or the fixing device further includes at least one fixing member, the fixing member passing through a first through-hole of the frame and a second through-hole of the tray to fix the tray on the frame.

[0005] In the technical solution of the embodiments of this application, when the space of the frame does not meet the installation of the battery device, the tray is fixed on the frame through the fixing device, and then the battery device is fixed on the frame. Through the design of the first opening and the adapted tray, the loading and unloading process of the battery device is made simpler and more efficient. The operator can push the tray with the battery device into the frame or take it out of the frame through the first opening without complex operation steps and professional tools. By providing the first baffle at the first opening, the movement of the tray can be directly and effectively restricted, preventing the tray from accidentally moving out of the frame, improving the stability of the battery device on the battery rack, reducing the risk of battery damage caused by the movement of the tray, and improving the safety of battery use. When maintenance or replacement of the battery device in the tray is required, the first baffle is removed so that the tray can be taken out smoothly, and the operation is convenient. By connecting the frame and the tray through the fixing member, the battery device is fixed inside the frame. When maintenance, replacement of the battery device in the tray or overhaul of the battery rack is required, only the fixing member needs to be loosened, and the tray can be taken out of the frame. After the operation is completed, the fixing member is reinstalled to restore the normal use state of the battery rack, and the maintenance process is simple and convenient.

[0006] In some embodiments of the first aspect, the fixing device further includes a second baffle, the second baffle being located at a second opening of the frame, the second opening being disposed opposite to the first opening to limit the tray from moving out of the frame through the second opening.

[0007] In the embodiment of the present application, two openings are provided on the frame so that the tray can enter from the two openings, thereby increasing the movement path of the tray. When the battery device in the tray needs to be maintained or replaced, the two openings increase the maintenance path. By respectively designing a first baffle and a second baffle at two opposite openings of the frame, the tray is blocked in both directions, thereby enhancing the stability of the tray and the battery device on the battery rack. The second baffle has a concise and clear structural design, a simple manufacturing process, a small number of required parts, convenient operation, and improved work efficiency.

[0008] In some embodiments of the first aspect, the frame includes a plurality of first through holes, which are arranged on opposite sides of the frame parallel to a first direction, and the tray includes a plurality of second through holes, which are arranged on opposite sides of the tray parallel to the first direction; wherein the first direction is the direction in which the tray enters the frame through the first opening.

[0009] In the embodiment of the present application, the arrangement of multiple through holes on opposite sides of the frame and the tray makes the distribution of fixing points more reasonable, which can reduce the shaking and displacement of the tray in the frame, improve the overall stability of the battery rack, and enable the battery device to be safely stored and operate normally.

[0010] In some embodiments of the first aspect, the battery rack further includes a limiter fixed at a second opening of the frame, the limiter being used to limit the tray from entering and exiting the frame through the second opening; wherein the second opening is arranged opposite to the first opening.

[0011] In the embodiment of the present application, the setting of the limiter provides a position reference and a limit boundary for the tray to enter and exit the frame. The possibility of the tray accidentally falling out of the second opening is reduced, and the stability of the tray and the battery device in the frame is enhanced. When the operator is installing and removing the tray, he can quickly control the position of the tray based on the limiter, reducing operational errors and time waste caused by tray offset and jamming, and improving work efficiency.

[0012] In some embodiments of the first aspect, the tray includes a first side wall arranged opposite to each other, the first side wall is parallel to the first direction, and the tray also includes a second side wall arranged opposite to each other, the second side wall is connected to the first side wall, and the first direction is the direction in which the tray enters the frame through the first opening; wherein the limit member abuts against the second side wall away from the first opening.

[0013] In the embodiments of the present application, by the abutment of the limiting member against the second side wall, the displacement of the tray within the frame can be restricted over a large area, enhancing the stability of the tray within the frame. Unnecessary friction and collisions between the tray and the frame are reduced. The limiting member restricts the displacement range of the tray, avoiding excessive wear of other parts of the tray and the frame, thereby prolonging the service life of the tray and the frame and reducing the equipment replacement cost.

[0014] In some embodiments of the first aspect, the second side wall away from the first opening has a first included angle α with the first direction, and the range of the first included angle α is: 30° ≤ α ≤ 60°.

[0015] In the embodiments of the present application, through the design of the included angle between the limiting member and the second side wall, the friction and collisions between the tray and the frame are reduced. The limiting member restricts the displacement range of the tray, and the inclined second side wall makes the force distribution more reasonable, enhancing the stability of the tray within the frame, reducing excessive wear of other parts of the tray and the frame, thereby prolonging the service life of the tray and the frame and reducing the equipment replacement cost.

[0016] In some embodiments of the first aspect, the tray further includes a fixing structure for fixing the battery device to the tray.

[0017] In the embodiments of the present application, through the fixing structure on the tray, the battery device can be fixed on the tray, preventing the displacement, shaking and falling off of the battery device on the tray. In the face of complex working conditions such as transportation bumps and equipment vibrations, the battery device can remain stable, reducing the safety risks caused by problems such as battery collision and short circuit, ensuring the normal performance and service life of the battery, and improving the safety of the entire battery storage and use system.

[0018] In some embodiments of the first aspect, the fixing structure includes a groove and a fixing member. The groove includes a third through hole penetrating the groove along the gravity direction of the battery device. The battery device includes a connecting member extending away from the inside of the battery device. The bottom surface of the connecting member in contact with the tray is flush with the bottom surface of the battery device in contact with the tray. The connecting member includes a fourth through hole penetrating the connecting member along the gravity direction of the battery device. Wherein, the groove is used to accommodate the connecting member, and the fixing member passes through the correspondingly arranged third through hole and the fourth through hole to fix the battery device on the tray.

[0019] In the embodiments of the present application, through the cooperation of the groove and the connecting member, the possibility of the battery device shaking on the tray can be reduced, and the stability of the battery device on the tray can be increased. After the fixing member passes through the through holes for connection, the battery device can obtain a fixing force on the tray, effectively resisting external forces such as vibration and impact, preventing the battery device from shifting, falling off, etc., and prolonging the service life of the battery.

[0020] In some embodiments of the first aspect, the frame further includes a slide rail, and the tray moves on the frame through the slide rail.

[0021] In the embodiments of the present application, the setting of the slide rail makes the movement of the tray on the frame smoother. By simply pushing or pulling the tray, the installation and disassembly of the tray can be completed, greatly reducing the labor intensity and improving the work efficiency. The slide rail guides and supports the tray, improving the stability of the tray during movement, reducing the occurrence of tray offset and jamming, avoiding collisions between the tray and the frame, thereby reducing the risk of battery damage and extending the service life of the battery.

[0022] In a second aspect, the present application provides an energy storage device, including a battery rack, the battery rack including the battery rack in the first aspect; a plurality of battery devices, the plurality of battery devices being arranged in the battery rack.

[0023] In a third aspect, the present application provides an energy storage system, including a power conversion device and the energy storage device in the second aspect, the power conversion device being used for electrically connecting a power generation device and the energy storage device.

[0024] In a fourth aspect, the present application provides a charging network, including a charging pile and the energy storage device in the second aspect or the energy storage system in the third aspect, the energy storage device being used for providing electric energy for the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the battery device in the embodiments of the present application;

[0026] Figure 2 It is a structural diagram of the battery cell in the embodiments of the present application;

[0027] Figure 3 It is a structural diagram of the battery rack in the embodiments of the present application;

[0028] Figure 4 It is a partial structural diagram of the battery rack in the embodiments of the present application;

[0029] Figure 5 It is a top view of the tray in the embodiments of the present application;

[0030] Figure 6 It is a partial side view of the battery rack in the embodiments of the present application;

[0031] Figure 7 It is another top view of the tray in the embodiments of the present application;

[0032] Figure 8 It is another structural diagram of the battery rack in the embodiments of the present application;

[0033] Figure 9 It is a structural diagram of the energy storage system in the embodiments of the present application;

[0034] Figure 10 This is a structural diagram of the charging network according to an embodiment of the present application.

[0035] In the drawings, the drawings are not drawn to actual scale.

[0036] Reference numerals:

[0037] 1000 - Battery rack; 100 - Battery device; 101 - Connector; 110 - Frame; 120 - Tray; 121 - Second through - hole; 122 - First side wall; 123 - Second side wall; 124 - Fixing structure; 1241 - Groove; 130 - Fixing device; 140 - Limiting member; 10 - Box body; 20 - Battery cell; 21 - Outer shell; 22 - End cover; 23 - Electrode terminal; 24 - Pressure - relief mechanism; 200 - Energy storage system; 210 - Power conversion device; 220 - Power generation device; 300 - Charging network; 310 - Charging pile; 320 - Connector. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the drawings.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above - mentioned drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above - mentioned drawings are used to distinguish different objects and are not used to describe a specific order or primary - secondary relationship.

[0041] References to "embodiments" in this application mean that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments.

[0042] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] The term "and / or" in this application is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0044] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0045] The term "plurality" as used in this application refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0046] If there is no special instruction, all embodiments and optional embodiments of this application can be combined with each other to form new technical solutions.

[0047] If there is no special instruction, all technical features and optional technical features of this application can be combined with each other to form new technical solutions.

[0048] In the embodiments of this application, the battery apparatus may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include a plurality of battery cells, and the plurality of battery cells are connected in series, parallel, or in a hybrid connection through a busbar component.

[0049] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0050] As an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells into an independent module. As an example, the battery module can be formed by bundling multiple battery cells with cable ties.

[0051] In some embodiments, the battery device can be a battery pack, which includes a battery box body and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the battery box body.

[0052] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the battery box body by fixing the battery module in the battery box body.

[0053] As an example, the battery cell assembly can also be accommodated in the battery box body by directly fixing multiple battery cells to the battery box body.

[0054] As an example, the battery box body can include a first battery box body part and a second battery box body part. The first battery box body part and the second battery box body part are snapped together so that a closed space is formed inside the battery box body to accommodate the battery cell assembly. Here, "closed" means covered or closed, which can be sealed or non-sealed. The first battery box body can be a top cover or a bottom plate.

[0055] As an example, the battery box body can include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame so that a closed space is formed inside the battery box body to accommodate the battery cell assembly.

[0056] In the embodiments of the present application, the energy storage device can include one or more battery clusters to increase the voltage and capacity of the energy storage device. The battery cluster can include multiple battery devices, and the multiple battery devices are connected in series through a busbar component to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0057] The energy storage device can be used in an energy storage power station, a wind power generation system, a solar power generation system, a mobile power system, or a temporary power supply system, etc. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during low electricity consumption periods and provide electrical energy to relevant users or electrical equipment during high electricity consumption periods. The energy storage system provided by the embodiments of the present application can be any power system that requires an energy storage device.

[0058] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0059] In some embodiments, the energy storage device may include a cabinet body and one or more battery clusters, and the battery clusters are accommodated in the cabinet body.

[0060] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a total control module, a power distribution module, and a fire protection module.

[0061] As an example, the thermal management module may include a liquid cooling unit, and the liquid cooling unit provides a coolant for regulating the temperature of the battery cells to each battery device through pipelines.

[0062] As an example, the main control module may serve as the battery management unit of the battery cluster for monitoring and managing the battery cluster. The main control module can monitor information such as the current, voltage, power, or temperature of the battery cluster. For example, it can control the charge and discharge current, voltage, etc. of the battery cluster. The main control module includes an auxiliary battery management unit SBMU (Slave Battery Management Unit, SBMU), a fusion switch and other modules.

[0063] As an example, the total control module may serve as the battery management unit of the energy storage device for monitoring and managing the energy storage device. The total 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 charge and discharge current, voltage, etc. of the energy storage device. As an example, the total control module includes an insulation monitoring module IMM (Insulation Monitoring Module, IMM), a main battery management unit MBMU (Master Battery Management Unit, MBMU), an Ethernet ETH (Ether Net, ETH), and a fiber optic conversion module and other modules.

[0064] As an example, the fire protection system includes a control panel, detectors, alarm devices, etc., for detecting, alarming, or extinguishing fires in the energy storage system.

[0065] As an example, the power distribution device can be used to distribute power to the power consumption modules of the energy storage device.

[0066] In some embodiments, the energy storage system may include one or more energy storage devices and a power converter PCS (Power Converter System, PCS), and the power converter is used to connect between the power generation device and the energy storage device. The power generation device is used to generate electrical energy, and the electrical energy generated by the power generation device can be stored in the energy storage device through the power converter. As an example, the power generation device can specifically be a solar panel, a hydroelectric power generation device, a thermal power generation device, a wind power generation device, etc. Among them, the specific type of the power generation device is not limited in this application.

[0067] In an embodiment of the present application, a charging network may include a charging pile and an energy storage device, wherein the charging pile is electrically connected to the energy storage device, and the energy storage device is used to provide electrical energy to the charging pile. The charging pile is electrically connected to a battery device in the energy storage device through a cable, and the battery device can provide its stored electrical energy to the charging pile. The charging pile has one or more connectors, which are used to connect to an electrical device so as to replenish energy to the electrical device.

[0068] The energy storage device can be located inside the charging pile (such as an integrated storage and charging machine) or outside the charging pile.

[0069] In battery application scenarios, such as energy storage systems and uninterruptible power supplies, reliable devices are needed to store batteries. Existing battery placement devices have problems such as inconvenient battery loading and unloading and difficult to fix, which affects the safety and convenience of battery use.

[0070] Based on the above considerations, the embodiment of the present application provides a battery box that can fix the battery device on the battery rack to improve the stability and loading and unloading convenience of the battery device. The battery rack provided in the embodiment of the present application includes a frame, a tray and a fixing device, the frame includes a first opening; the tray enters and exits the frame through the first opening, and the tray is used to carry the battery device; the fixing device is located on the frame, and the fixing device includes a first baffle, and the first baffle is located at the first opening of the frame to limit the tray from moving out of the frame through the first opening; and / or the fixing device also includes at least one fixing member, the fixing member is inserted through the first through hole of the frame and the second through hole of the tray to fix the tray on the frame.

[0071] In the embodiments of the present application, when the frame space does not meet the installation requirements of the battery device, the tray is fixed to the frame through a fixing device, and then the battery device is fixed to the frame. Through the design of the first opening and the adapted tray, the loading and unloading process of the battery device is made simpler and more efficient. The operator can push the tray with the battery device into the frame or take it out of the frame through the first opening, without complex operation steps and professional tools. By setting a first baffle at the first opening, the movement of the tray can be directly and effectively restricted, preventing the tray from accidentally moving out of the frame, improving the stability of the battery device on the battery rack, reducing the risk of battery damage caused by the movement of the tray, and improving the safety of battery use. When maintenance or replacement of the battery device in the tray is required, the first baffle is removed to enable the tray to be taken out smoothly, and the operation is convenient. The frame and the tray are connected through fixing parts, and then the battery device is fixed inside the frame. When maintenance, replacement of the battery device in the tray or overhaul of the battery rack is required, only the fixing parts need to be loosened, and the tray can be taken out of the frame. After the operation is completed, the fixing parts are reinstalled to restore the normal use state of the battery rack, and the maintenance process is simple and convenient.

[0072] Figure 1 is a structural diagram of the battery device according to the embodiments of the present application. As Figure 1 shown, the battery device 100 according to the embodiments of the present application may include a plurality of battery cells 20 to meet different power usage requirements. It should be understood that as Figure 1 shown, the battery device 100 according to the embodiments of the present application may further include a box body 10.

[0073] The box body 10 may include two parts, which are respectively referred to as a first box body part and a second box body part, and the first box body part and the second box body part are snapped together. The shapes of the first box body part and the second box body part may be determined according to the shapes of the components accommodated inside. For example, they may be determined according to the shape of the combination of a plurality of battery cells 20 accommodated inside. At least one of the first box body part and the second box body part has an opening. For example, both the first box body part and the second box body part may be hollow cuboids and each has an open face, the openings of the first box body part and the second box body part are arranged opposite to each other, and the first box body part and the second box body part are snapped together to form a box body 10 with a closed chamber, and this chamber can be used to accommodate a plurality of battery cells 20. A plurality of battery cells 20 are placed in the box body 10 formed after the first box body part and the second box body part are snapped together after being connected in parallel, in series, or in a mixed connection.

[0074] For another example, only one of the first box body part and the second box body part can be a hollow cuboid with an opening, and the other can be plate-shaped to cover the opening. Taking the second box body part as a hollow cuboid with an opening and the first box body part as plate-shaped as an example, the first box body part covers the opening of the second box body part to form a box body 10 with a closed chamber, and this chamber can be used to accommodate a plurality of battery cells 20.

[0075] Figure 2 The structure diagram of the battery cell of the embodiment of the present application. As Figure 2 shown, the battery cell 20 of the embodiment of the present application may include a housing 21, an end cap 22, an electrode terminal 23, a pressure relief mechanism 24, and an electrode assembly.

[0076] The housing 21 is a hollow structure with an opening, and the electrode assembly is accommodated in the housing 21. The shape of the housing 21 can be determined according to the specific shape of the electrode assembly. For example, if the electrode assembly is a cuboid structure, the housing 21 can be selected as a cuboid structure. Figure 2 An exemplary case where the housing 21 and the electrode assembly are square is shown.

[0077] The material of the housing 21 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiment of the present application does not limit this.

[0078] The end cap 22 is used to cover the opening to form a sealed installation space, and the installation space is used to accommodate the electrode assembly. The installation space is also used to accommodate an electrolyte, such as electrolyte solution. The electrode terminal 23 is installed on the end cap 22 and is used to connect with the electrode assembly.

[0079] The pressure relief mechanism 24 is also installed on the end cap 22. When the internal pressure of the battery cell 20 rises abnormally, the pressure relief mechanism 24 can be activated in time to release the excessive pressure inside the battery cell 20, thereby reducing the possibility of dangerous situations such as explosion of the battery cell 20.

[0080] It should be understood that the shape of the battery cell 20 of the embodiment of the present application can be flexibly set according to actual applications, that is, the housing 21 of the battery cell 20 can be any polyhedron structure. For example, it can be set as a cuboid or a cylinder, etc.

[0081] Figure 3 The structure diagram of the battery rack of the embodiment of the present application, Figure 4 The partial structure diagram of the battery rack of the embodiment of the present application. As Figure 3 With Figure 4As shown, the battery rack 1000 may include a frame 110, a tray 120, and a fixing device 130. The frame 110 includes a first opening; the tray 120 enters and exits the frame 110 through the first opening, and the tray 120 is used to carry the battery device 100; the fixing device 130 is located on the frame 110. The fixing device 130 includes a first baffle, and the first baffle is located at the first opening of the frame 110 to limit the tray 120 from moving out of the frame 110 through the first opening; and / or the fixing device 130 further includes at least one fixing member, and the fixing member passes through the first through hole of the frame 110 and the second through hole 121 of the tray 120 to fix the tray 120 on the frame 110.

[0082] In some embodiments, the frame 110 is the main support structure of the battery rack 1000. The frame 110 can be made of a strong material, such as a metal material, and has sufficient strength and stability to withstand the weight of the tray 120 and the battery device 100, so that the battery rack 1000 will not be deformed or damaged during use.

[0083] The frame 110 includes a first opening, and the first opening is an entrance or an exit. The tray 120 enters and exits the frame 110 through the first opening. For example, the frame 110 includes vertical beams and cross beams. To facilitate the entry and exit of the tray 120, the frame 110 does not have a cross beam at the first opening.

[0084] The size and shape of the first opening are designed to be determined according to the size of the tray 120 to adapt to the entry and exit of the tray 120.

[0085] In some embodiments, the tray 120 is used to carry the battery device 100. The surface of the tray 120 can be designed with a bearing area adapted to the shape of the battery device 100 to stably place the battery and prevent the battery from shaking in the tray 120.

[0086] The material selection of the tray 120 can take into account both strength and lightness. For example, a lightweight alloy material is used to facilitate manual handling or loading and unloading operations with the help of simple equipment.

[0087] The size of the tray 120 matches the first opening, and it can smoothly enter and exit the frame 110 through the first opening. The tray 120 can carry one or more battery devices 100.

[0088] The battery rack 1000 further includes a fixing device 130 located on the frame 110, and its function is to fix the tray 120 on the frame 110 so that after the tray 120 enters the frame 110, it will not move out of the frame 110 from the first exit or other positions of the frame 110.

[0089] The fixing device 130 can adopt various forms, such as a snap structure, a bolt connection structure, or a buckle structure, etc.

[0090] Exemplarily, a buckle is provided on the frame 110. After the tray 120 is inserted into the frame 110, the buckle can automatically snap onto the corresponding card slot of the tray 120 to achieve quick fixation of the tray 120.

[0091] When using the battery rack 1000, the battery device 100 is placed on the tray 120. The tray 120 is inserted into the frame 110 through the first opening of the frame 110, and the fixing device 130 is used to fix the tray 120 on the frame 110. When the battery device 100 needs to be replaced or maintained, the fixing device 130 is loosened, and the tray 120 is taken out of the frame 110, and then the corresponding operations can be performed on the battery device 100.

[0092] It should be understood that the tray 120 can also be used to carry battery cells 20.

[0093] The battery rack 1000 in the embodiments of the present application can be applied to scenarios such as containerized mobile power supplies and ship battery compartments. The number of battery devices 100 is large and the space is small, which is not convenient for the assembly and repair of the battery devices 100. In this case, the battery device 100 is carried by the movable tray 120 to fix the battery device 100 under the frame 110 and facilitate the assembly and repair of the battery device 100.

[0094] In the embodiments of the present application, when the space of the frame 110 does not meet the installation requirements of the battery device 100, the fixing device 130 is used to fix the tray 120 on the frame 110, thereby realizing the fixation of the battery device 100 on the frame 110. Through the design of the first opening and the adapted tray 120, the loading, unloading and repair of the battery device 100 are made simpler and more efficient. The operator can push the tray 120 with the battery device 100 into the frame 110 through the first opening or take it out of the frame 110 without complex operation steps and professional tools. The tray 120 can be designed and adjusted according to the sizes of different types of battery devices 100, and has good versatility; at the same time, the structure of the frame 110 can be modularly expanded according to actual needs, and the number of trays 120 can be increased or decreased to meet different scales of battery storage requirements.

[0095] In some embodiments, the fixing device 130 may include a first baffle, and the first baffle is located at the first opening of the frame 110 and is used to block the first opening so that the tray 120 cannot move out of the first opening.

[0096] The size of the first baffle is adapted to the size of the first opening, and its size design needs to meet the requirement of restricting the movement of the tray 120. Exemplarily, when the first opening is rectangular, the first baffle can be a rectangular plate-like structure, and its length is greater than the length of the first opening.

[0097] In some embodiments, the first baffle can be connected to the frame 110 by means of bolt connection or snap connection, etc. For bolt connection, screw holes are provided at corresponding positions on the first baffle and the frame 110, and fixation is achieved by tightening the bolts; for snap connection, a snap structure is provided on the frame 110, and a corresponding card slot is provided on the first baffle to achieve quick installation and disassembly.

[0098] The first baffle can be a detachable baffle, that is, when maintenance or replacement of the battery device 100 is required, according to the corresponding disassembly method, such as unscrewing the bolts, loosening the snaps, etc., the first baffle is disassembled, and then the tray 120 is taken out from the frame 110 for subsequent operations. After the operations are completed, the tray 120 is reinserted into the frame 110, and the first baffle is installed to restore the normal use state of the battery rack 1000.

[0099] In the embodiments of the present application, by providing the first baffle at the first opening, the movement of the tray 120 can be directly and effectively restricted, preventing the tray 120 from accidentally moving out of the frame 110, improving the stability of the battery device 100 on the battery rack 1000, reducing the risk of battery damage caused by the movement of the tray 120, and improving the safety of battery use. When maintenance or replacement of the battery device 100 in the tray 120 is required, the first baffle is disassembled so that the tray 120 can be taken out smoothly, and the operation is convenient.

[0100] In some embodiments, the fixing device 130 includes one or more fixing members. First through holes are provided on the frame 110, and corresponding second through holes 121 are provided on the tray 120. When the tray 120 enters the frame 110 through the opening of the frame 110 and the first through holes and the second through holes 121 correspond to each other, the fixing members are sequentially passed through the first through holes of the frame 110 and the second through holes 121 of the tray 120 to fix the tray 120.

[0101] In some embodiments, the fixing members can be connecting devices such as bolts and pins with certain strength and stability. Exemplarily, after passing the bolt through the first through hole and the second through hole 121, a nut is used for tightening, so as to fix the tray 120 on the frame 110 and prevent the tray 120 from displacing or shaking within the frame 110.

[0102] In the embodiments of the present application, the frame 110 and the tray 120 are connected by the fixing members, and further the battery device 100 is fixed inside the frame 110. When maintenance, replacement of the battery device 100 in the tray 120 or overhaul of the battery rack 1000 is required, only the fixing members need to be loosened, and the tray 120 can be taken out from the frame 110. After the operations are completed, the fixing members are reinstalled to restore the normal use state of the battery rack 1000, and the maintenance process is simple and convenient.

[0103] In the embodiments of the present application, for the fixing device 130, only at least one fixing member needs to pass through the through-holes of the frame 110 and the tray 120. Compared with the traditional complex fixing structure 124, the number of components and the installation steps are reduced. Operators can quickly complete the installation without professional skills, greatly improving the installation efficiency and reducing the labor cost.

[0104] In the embodiments of the present application, the fixing device 130 further includes a second baffle, which is located at the second opening of the frame 110. The second opening is arranged opposite to the first opening to restrict the tray 120 from moving out of the frame 110 through the second opening.

[0105] In some embodiments, the frame 110 includes a second opening, which can have a function similar to that of the first opening and is used for the tray 120 to enter and exit the frame 110.

[0106] The second opening is arranged opposite to the first opening. For example, if the frame 110 is regarded as a cuboid structure, when the first opening is opened on a certain side surface of the cuboid, the second opening is located on the other side surface opposite to this side surface.

[0107] In some embodiments, the tray 120 can enter from the first opening and move out from the second opening, or enter from the second opening and move out from the second opening.

[0108] The fixing device 130 further includes a second baffle, which is located at the second opening of the frame 110. The design specifications and connection methods of the second baffle are similar to those of the first baffle. The second baffle can be designed according to the shape and size of the second opening, and the selection of connection methods such as bolt connection and snap connection depends on the actual application scenarios and requirements.

[0109] When the tray 120 is placed inside the frame 110, the second baffle can prevent the tray 120 from moving out of the frame 110 through the second opening, and cooperate with the first baffle to fix the tray 120 from two opposite directions.

[0110] In some embodiments, the second opening can also be fixed using fixing members.

[0111] In the embodiments of the present application, two openings are provided on the frame 110, so that the tray 120 can enter from the two openings, increasing the movement path of the tray 120. When maintenance, replacement and other operations need to be carried out on the battery device 100 inside the tray 120, the two openings increase the repair path. By respectively designing the first baffle and the second baffle at two opposite openings of the frame 110, the tray 120 is blocked in two directions, enhancing the stability of the tray 120 and the battery device 100 on the battery rack 1000. The structure design of the second baffle is simple and clear, the manufacturing process is simple, the number of required components is small, the operation is convenient, and the work efficiency is improved.

[0112] Figure 5 This is a top view of the tray according to an embodiment of the present application. In combination with Figures 3 to 5 As shown, the frame 110 includes a plurality of first through-holes, and the plurality of first through-holes are arranged on opposite sides of the frame 110 parallel to the first direction. The tray 120 includes a plurality of second through-holes 121, and the plurality of second through-holes 121 are arranged on opposite sides of the tray 120 parallel to the first direction; wherein, the first direction is the direction in which the tray 120 enters the frame 110 through the first opening.

[0113] In some embodiments, the frame 110 includes a plurality of first through-holes, and these first through-holes are arranged on opposite sides of the frame 110 parallel to the first direction. The first direction is the direction in which the tray 120 enters the frame 110 through the first opening, that is, the first through-holes are arranged along the moving direction of the tray 120.

[0114] The plurality of second through-holes 121 of the tray 120 are similar to the first through-holes, and the positions of the second through-holes 121 correspond to the positions of the first through-holes. In order to fix the tray 120 to the frame 110, the second through-holes 121 are provided at the edge of the tray 120.

[0115] Since a plurality of through-holes are provided on both the frame 110 and the tray 120, appropriate through-holes can be selected for fixing according to the actual specifications, dimensions and weights of the battery device 100. For battery devices 100 of different sizes, the positions of the fixing points can be adjusted to maintain the balance and stability of the tray 120 within the frame 110, improving the adaptability of the battery rack 1000 to different battery devices 100.

[0116] In the embodiments of the present application, the arrangement of the plurality of through-holes on opposite sides of the frame 110 and the tray 120 makes the distribution of the fixing points more reasonable, can reduce the shaking and displacement of the tray 120 within the frame 110, improves the overall stability of the battery rack 1000, and enables the battery device 100 to be safely stored and operate normally.

[0117] Figure 6 This is a partial side view of the battery rack according to an embodiment of the present application. As Figure 6 shown, the battery rack 1000 further includes a limiting member 140, and the limiting member 140 is fixed at the second opening of the frame 110. The limiting member 140 is used to limit the tray 120 from entering and exiting the frame 110 through the second opening; wherein, the second opening is arranged opposite to the first opening.

[0118] In some embodiments, when the tray 120 does not need to enter and exit through the second opening, a limiting member 140 can be installed at the second opening, and the limiting member 140 is fixed to the frame 110, so that the tray 120 cannot enter and exit through the second opening.

[0119] The form and type of the limiting member 140 can be selected according to the dimensions and requirements of the frame 110 and the tray 120. The limiting member 140 can include a block-type limiting member, a plate-type limiting member, a snap-type limiting member, and so on.

[0120] The block in the block-type limiting member generally adopts a block structure, and the material is mostly metal or high-strength engineering plastic. The common shapes are rectangle, trapezoid, etc. It can be installed at the vertical beam corresponding to the second opening of the frame 110 to partially block the second opening. During installation, the installation position and angle of the block can be adjusted according to the entry and exit trajectory of the tray 120 and the limiting requirements, so that it can block and limit the tray 120.

[0121] The snap-type limiting member includes a protrusion and a corresponding groove 1241. Specifically, the protrusion is provided on the tray 120, and the groove 1241 is provided on the frame 110. During installation, the tray 120 is pushed into the frame 110 along the moving direction and stops after the protrusion and the groove 1241 are combined with each other to realize the limitation of the tray 120.

[0122] When the tray 120 is inserted into the frame 110 through the first opening, as the tray 120 is gradually pushed in, one end of the tray 120 close to the second opening will gradually approach the limiting member 140. When the tray 120 contacts the limiting member 140, the limiting member 140 will play a role to prevent the tray 120 from continuing to move excessively towards the second opening direction, so that the tray 120 can stay at the preset installation position within the frame 110. When it is necessary to take out the tray 120 from the frame 110, the limiting member 140 restricts the tray 120 to be pulled out only from the first opening direction, reducing the possibility of the tray 120 accidentally coming out from the second opening.

[0123] In the embodiment of the present application, the setting of the limiting member 140 provides a position reference and a limiting boundary for the tray 120 to enter and exit the frame 110. It reduces the possibility of the tray 120 accidentally coming out from the second opening and enhances the stability of the tray 120 and the battery device 100 within the frame 110. When the operator performs the installation and disassembly operations of the tray 120, the position of the tray 120 can be quickly controlled based on the limiting member 140, reducing operation errors and time waste caused by the deviation and jamming of the tray 120, and improving work efficiency.

[0124] Continue to refer to Figure 6 , the tray 120 includes first side walls 122 arranged opposite to each other, the first side walls 122 are parallel to the first direction, the tray 120 further includes second side walls 123 arranged opposite to each other, the second side walls 123 are connected to the first side walls 122, and the first direction is the direction in which the tray 120 enters the frame 110 through the first opening; wherein, the limiting member 140 abuts against the second side wall 123 far from the first opening.

[0125] In some embodiments, the limiting member 140 may be a limiting plate, which has a similar shape to the first baffle. The length dimension of the limiting plate may be greater than the dimension between the two vertical beams in the second opening.

[0126] The tray 120 may include four side walls. Among them, the two side walls parallel to the moving direction of the tray 120 are the first side walls 122, and the remaining two side walls are the second side walls 123. The limiting member 140 abuts against the second side wall 123 away from the first opening. That is, the limiting member 140 and the tray 120 achieve the limitation of the tray 120 by the contact of surface with surface.

[0127] In the embodiments of the present application, the surface-to-surface abutment of the limiting member 140 and the second side wall 123 of the tray 120 can limit the displacement of the tray 120 in the frame 110 by a large area. The abutment of the limiting member 140 and the second side wall 123 of the tray 120 prevents the tray 120 from moving towards the second opening due to its own gravity or slight vibration, and always remains in the preset installation position, providing a stable bearing platform for the battery device 100.

[0128] In the embodiments of the present application, by the abutment of the limiting member 140 and the second side wall 123, the stability of the tray 120 in the frame 110 is enhanced. Unnecessary friction and collision between the tray 120 and the frame 110 are reduced. The limiting member 140 limits the displacement range of the tray 120, avoiding excessive wear of other parts of the tray 120 and the frame 110, thereby prolonging the service life of the tray 120 and the frame 110 and reducing the equipment replacement cost. Due to the relatively simple structure, it is also convenient to inspect, repair and replace parts of the tray 120 and the frame 110, reducing the maintenance cost.

[0129] Continue to refer to Figure 6 , the second side wall 123 away from the first opening has a first included angle α with the first direction, and the range of the first included angle α is: 30° ≤ α ≤ 60°.

[0130] In some embodiments, the value of α may be 30°, 34°, 40°, 45°, 50°, 55° or 60°.

[0131] The second side wall 123 has a certain included angle with the first direction, which helps to improve the abutment effect between the tray 120 and the limiting member 140. When subjected to an external force, a more reasonable force distribution can be formed between the inclined second side wall 123 and the limiting member 140, enhancing the stability of the tray 120 in the frame 110.

[0132] If α is less than 30°, the inclination degree of the second side wall 123 is too small, and it is difficult to effectively disperse the force to the limiting member 140 when stressed, so the improvement effect of the stability of the tray 120 is limited. If α is greater than 60°, the limiting member 140 cannot provide a buffering force to the second side wall 123, which will increase the wear between the limiting member 140 and the second side wall 123 and affect the service life of the structure.

[0133] In the embodiment of the present application, through the angle design between the limiting member 140 and the second side wall 123, the friction and collision between the tray 120 and the frame 110 are reduced. The limiting member 140 limits the displacement range of the tray 120, and the inclined second side wall 123 makes the force distribution more reasonable, enhancing the stability of the tray 120 within the frame 110, reducing excessive wear between the tray 120 and other parts of the frame 110, thereby extending the service lives of the tray 120 and the frame 110 and reducing the equipment replacement cost.

[0134] Figure 7 This is another top view of the tray in the embodiment of the present application. As Figure 7 shown, the tray 120 further includes a fixing structure 124 for fixing the battery device 100 to the tray 120.

[0135] In some embodiments, the fixing structure 124 is used to fix the battery device 100 to the tray 120, that is, when the battery device 100 is placed on the tray 120, the fixing structure 124 is used to stably place the battery device 100 on the tray 120.

[0136] The fixing structure 124 can adopt various forms. For example, a plurality of adjustable fastening clips are provided on the tray 120. The fastening clips are distributed on the surface of the tray 120 and are connected to the tray 120 through screws, and the position can be adjusted according to the size of the battery device 100. When installing the battery device 100, the fastening clips can be adjusted to a suitable position, and then the screws are tightened to tightly clamp the edge of the battery device 100, thereby firmly fixing the battery device 100 on the tray 120.

[0137] Exemplarily, the tray 120 can also adopt a magnetic fixing structure 124. A number of powerful magnets are embedded inside the tray 120, and corresponding metal patches are provided at the bottom of the battery device 100. When the battery device 100 is placed on the tray 120, the magnets and the metal patches attract each other to generate a strong adsorption force to fix the battery device 100 on the tray 120.

[0138] In the embodiments of the present application, through the fixing structure 124 on the tray 120, the battery device 100 can be fixed on the tray 120, preventing displacement, shaking and falling off of the battery device 100 on the tray 120. In the face of complex working conditions such as transportation bumps and equipment vibrations, the battery device 100 can remain stable, reducing the safety risks caused by problems such as battery collision and short circuit, ensuring the normal performance and service life of the battery, and improving the safety of the entire battery storage and use system.

[0139] Figure 8 It is another structural diagram of the battery rack according to the embodiments of the present application. As Figure 8 shown, the fixing structure 124 includes a groove 1241 and a fixing member. The groove 1241 includes a third through hole penetrating the groove 1241 along the gravity direction of the battery device 100. The battery device 100 includes a connecting member 101 extending away from the inside of the battery device 100. The bottom surface of the connecting member 101 in contact with the tray 120 is flush with the bottom surface of the battery device 100 in contact with the tray 120. The connecting member 101 includes a fourth through hole penetrating the connecting member 101 along the gravity direction of the battery device 100. Among them, the groove 1241 is used to accommodate the connecting member 101, and the fixing member passes through the correspondingly arranged third through hole and fourth through hole to fix the battery device 100 on the tray 120.

[0140] In some embodiments, the fixing structure 124 includes a groove 1241, that is, the groove 1241 is located on the tray 120, and the groove 1241 is used to accommodate the connecting member 101 of the battery device 100. The groove 1241 has specific dimensions and shapes, and its size is customized according to the specifications of the connecting member 101 of the battery device 100.

[0141] The groove 1241 is provided with a third through hole penetrating the groove 1241 along the gravity direction of the battery device 100. The position and size of this through hole correspond to the fourth through hole on the connecting member 101 of the battery device 100, providing a channel for the subsequent penetration of the fixing member.

[0142] In some embodiments, the battery device 100 is equipped with a connecting member 101 extending away from the inside of the battery device 100. The material of the connecting member 101 can match the material of the box body 10 of the battery device 100 to avoid possible electrochemical corrosion between different materials. For example, if the box body 10 of the battery device 100 is made of aluminum alloy, the connecting member 101 is also made of aluminum alloy and is fixedly connected to the box body 10 of the battery device 100 by reliable methods such as welding and riveting.

[0143] The bottom surface of the connecting member 101 in contact with the tray 120 is flush with the bottom surface of the battery device 100 in contact with the tray 120, that is, the connecting member 101 is located at the bottom of the battery device 100 and contacts the tray 120, making the battery device 100 more stable and evenly stressed when placed on the tray 120.

[0144] The fixing structure 124 further includes fixing members. Common fixing members are components with good fastening performance such as bolts and pins. When the battery device 100 is placed on the tray 120, its connecting member 101 is embedded in the groove 1241 of the fixing structure 124, and the fixing member passes through the correspondingly provided third through-hole and fourth through-hole. For example, after passing a bolt through the third through-hole and the fourth through-hole, a nut is tightened at the other end to connect the battery device 100, the connecting member 101 and the tray 120, realizing the fixing of the battery device 100 on the tray 120.

[0145] In the embodiment of the present application, through the cooperation of the groove 1241 and the connecting member 101, the possibility of the battery device 100 shaking on the tray 120 can be reduced, and the stability of the battery device 100 on the tray 120 can be increased. After the connecting of the fixing member passing through the through-holes, the battery device 100 can obtain a fixing force on the tray 120, effectively resisting external forces such as vibration and impact, preventing the battery device 100 from being displaced, falling off, etc., and extending the service life of the battery.

[0146] In the embodiment of the present application, the frame 110 further includes slide rails, and the tray 120 moves on the frame 110 through the slide rails.

[0147] In some embodiments, the frame 110 further includes slide rails, and the slide rails are fixedly installed on the frame 110. The positions of the slide rails can be on both sides of the frame 110 along the moving direction of the tray 120, and the symmetric design can make the tray 120 evenly stressed during the moving process.

[0148] The slide rails can adopt various types, such as ball slide rails and roller slide rails. For example, a ball slide rail is composed of a track and a slider. The track is fixed on the frame 110, and the slider is connected to the tray 120. The balls roll between the track and the slider, reducing the friction force and enabling the tray 120 to move on the frame 110.

[0149] The tray 120 moves on the frame 110 by cooperating with the slide rails. The tray 120 is provided with connection components adapted to the slide rails, such as sliders or rollers. When the tray 120 needs to be installed into the frame 110, align the connection components on the tray 120 with the slide rails on the frame 110, and then push the tray 120, and the tray 120 can slide into the frame 110 along the slide rails. When the battery needs to be maintained or replaced, the tray 120 can also be easily pulled out of the frame 110 along the slide rails.

[0150] In the embodiments of the present application, the provision of the sliding rail makes the movement of the tray 120 on the frame 110 smoother. By simply pushing or pulling the tray 120, the installation and disassembly of the tray 120 can be completed, greatly reducing the labor intensity and improving the work efficiency. The sliding rail guides and supports the tray 120, improving the stability of the tray 120 during movement, reducing the occurrence of deviation and jamming of the tray 120, avoiding collisions between the tray 120 and the frame 110, thereby reducing the risk of battery damage and extending the service life of the battery.

[0151] According to some embodiments of the present application, the present application also provides an energy storage device, which includes a battery rack 1000 and a plurality of battery devices 100. The plurality of battery devices 100 are arranged in the battery rack 1000. The battery rack 1000 may include a frame 110, a tray 120 and a fixing device 130. The frame 110 includes a first opening; the tray 120 enters and exits the frame 110 through the first opening, and the tray 120 is used to carry the battery device 100; the fixing device 130 is located on the frame 110, and the fixing device 130 is used to fix the tray 120 on the frame 110.

[0152] It should be understood that the battery rack 1000 may also include the battery rack 1000 in any of the above embodiments.

[0153] Figure 9 is a structural diagram of the energy storage system according to the embodiments of the present application. As Figure 9 shown, the present application also provides an energy storage system 200, which includes a power conversion device 210 and an energy storage device. The power conversion device 210 is used to electrically connect a power generation device 220 and the energy storage device. The energy storage device includes a battery rack 1000. The battery rack 1000 may include a frame 110, a tray 120 and a fixing device 130. The frame 110 includes a first opening; the tray 120 enters and exits the frame 110 through the first opening, and the tray 120 is used to carry the battery device 100; the fixing device 130 is located on the frame 110, and the fixing device 130 is used to fix the tray 120 on the frame 110.

[0154] It should be understood that the battery rack 1000 may also include the battery rack 1000 in any of the above embodiments.

[0155] Figure 10 is a structural diagram of the charging network according to the embodiments of the present application. As Figure 10As shown, the present application also provides a charging network 300, which includes a charging pile 310 and an energy storage device or an energy storage system 200. The energy storage device is used to provide electrical energy for the charging pile 310. The energy storage device includes a battery rack 1000, and the battery rack 1000 may include a frame 110, a tray 120 and a fixing device 130. The frame 110 includes a first opening; the tray 120 enters and exits the frame 110 through the first opening, and the tray 120 is used to carry the battery device 100; the fixing device 130 is located on the frame 110, and the fixing device 130 is used to fix the tray 120 on the frame 110. The charging pile 310 may have one or more connectors 320, and the connectors 320 are used to connect with electrical devices.

[0156] According to some embodiments of the present application, referring to Figures 3 to 8 , the present application provides a battery rack 1000, which includes a frame 110, a tray 120 and a fixing device 130. The frame 110 includes a first opening; the tray 120 enters and exits the frame 110 through the first opening, and the tray 120 is used to carry the battery device 100; the fixing device 130 is located on the frame 110, and the fixing device 130 is used to fix the tray 120 on the frame 110. The fixing device 130 includes a first baffle, and the first baffle is located at the first opening of the frame 110 to limit the tray 120 from moving out of the frame 110 through the first opening. The fixing device 130 further includes a second baffle, and the second baffle is located at the second opening of the frame 110. The second opening is arranged opposite to the first opening to limit the tray 120 from moving out of the frame 110 through the second opening.

[0157] The fixing device 130 may further include at least one fixing member, and the fixing member passes through the first through hole of the frame 110 and the second through hole 121 of the tray 120 to fix the tray 120 on the frame 110. The frame 110 includes a plurality of first through holes, and the plurality of first through holes are arranged on the opposite sides of the frame 110 parallel to the first direction. The tray 120 includes a plurality of second through holes 121, and the plurality of second through holes 121 are arranged on the opposite sides of the tray 120 parallel to the first direction; wherein, the first direction is the direction in which the tray 120 enters the frame 110 through the first opening.

[0158] The battery rack 1000 further includes a limiting member 140. The limiting member 140 is fixed at the second opening of the frame 110. The limiting member 140 is used to limit the tray 120 from entering and exiting the frame 110 through the second opening. The tray 120 includes first side walls 122 arranged oppositely. The first side walls 122 are parallel to the first direction. The tray 120 further includes second side walls 123 arranged oppositely. The second side walls 123 are connected to the first side walls 122. The first direction is the direction in which the tray 120 enters the frame 110 through the first opening. Wherein, the limiting member 140 abuts against the second side wall 123 far from the first opening. The second side wall 123 far from the first opening has a first included angle α with the first direction. The range of the first included angle α is: 30° ≤ α ≤ 60°.

[0159] The tray 120 further includes a fixing structure 124. The fixing structure 124 is used to fix the battery device 100 to the tray 120. The fixing structure 124 includes a groove 1241. The groove 1241 includes a fourth through hole penetrating the groove 1241 along the gravity direction of the battery device 100. The battery device 100 includes a connecting member 101. The connecting member 101 includes a third through hole penetrating the connecting member 101 along the gravity direction of the battery device 100. The groove 1241 is used to accommodate the connecting member 101. Wherein, the fixing structure 124 further includes a fixing member. The fixing member of the fixing structure 124 passes through the correspondingly arranged third through hole and fourth through hole to fix the battery device 100 on the tray 120. The frame 110 further includes a slide rail. The tray 120 moves on the frame 110 through the slide rail.

[0160] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery holder, characterized in that, Comprising: A frame (110), the frame (110) including a first opening; A tray (120), the tray (120) entering and exiting the frame (110) through the first opening, the tray (120) being used for carrying a battery device (100); A fixing device (130), the fixing device (130) being located on the frame (110), the fixing device (130) including a first baffle, the first baffle being located at the first opening of the frame (110) to limit the tray (120) from moving out of the frame (110) through the first opening; and / or The fixing device (130) further includes at least one fixing member, the fixing member passing through a first through-hole of the frame (110) and a second through-hole (121) of the tray (120) to fix the tray (120) on the frame (110).

2. The battery rack according to claim 1, wherein, The fixing device (130) further includes a second baffle, the second baffle being located at a second opening of the frame (110), the second opening being disposed opposite to the first opening to limit the tray (120) from moving out of the frame (110) through the second opening.

3. The battery rack according to claim 1, characterized in that, The frame (110) includes a plurality of the first through-holes, the plurality of the first through-holes being disposed on opposite sides of the frame (110) parallel to a first direction, the tray (120) includes a plurality of the second through-holes (121), the plurality of the second through-holes (121) being disposed on opposite sides of the tray (120) parallel to the first direction; Wherein, the first direction is the direction in which the tray (120) enters the frame (110) through the first opening.

4. The battery rack according to any one of claims 1 to 3, characterized in that, The battery rack further includes a limiting member (140), the limiting member (140) being fixed at the second opening of the frame (110), the limiting member (140) being used for limiting the tray (120) from entering and exiting the frame (110) through the second opening; Wherein, the second opening is disposed opposite to the first opening.

5. The battery rack according to claim 4, characterized in that, The tray (120) includes opposite first sidewalls (122), the first sidewalls (122) being parallel to the first direction, the tray (120) further includes opposite second sidewalls (123), the second sidewalls (123) being connected to the first sidewalls (122), the first direction being the direction in which the tray (120) enters the frame (110) through the first opening; Wherein, the limiting member (140) abuts against the second sidewall (123) away from the first opening.

6. The battery rack according to claim 5, characterized in that, The second sidewall (123) away from the first opening has a first included angle α with the first direction, the range of the first included angle α is: 30° ≤ α ≤ 60°.

7. The battery rack according to any one of claims 1 to 3, characterized in that The tray (120) further includes a fixing structure (124), the fixing structure (124) being used for fixing the battery device (100) to the tray (120).

8. The battery rack according to claim 7, characterized in that, The fixing structure (124) includes a groove (1241) and a fixing member. The groove (1241) includes a third through hole that penetrates the groove (1241) along the gravity direction of the battery device (100). The battery device (100) includes a connecting member (101) that extends away from the interior of the battery device (100). The bottom surface of the connecting member (101) in contact with the tray (120) is flush with the bottom surface of the battery device (100) in contact with the tray (120). The connecting member (101) includes a fourth through hole that penetrates the connecting member (101) along the gravity direction of the battery device (100). Wherein, the groove (1241) is used to accommodate the connecting member (101), and the fixing member passes through the correspondingly arranged third through hole and the fourth through hole to fix the battery device (100) on the tray (120).

9. The battery rack according to any one of claims 1 to 3, characterized in that The frame (110) further includes a slide rail, and the tray (120) moves on the frame (110) through the slide rail.

10. An energy storage device, characterized in that, Comprising: A battery rack, the battery rack includes the battery rack according to any one of claims 1 to 9; A plurality of battery devices (100), the plurality of battery devices (100) are arranged in the battery rack.

11. An energy storage system, characterized in that, Comprising a power conversion device (210) and the energy storage device according to claim 10, and the power conversion device (210) is used to electrically connect the power generation device (220) and the energy storage device.

12. A charging network, characterized in that, Comprising a charging pile (310) and the energy storage device according to claim 10 or the energy storage system according to claim 11, and the energy storage device is used to provide electric energy for the charging pile (310).

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