Battery device, energy storage device, energy storage system, power consuming device, and charging network

Abstract

This application provides a battery device (100), an energy storage device (1), an energy storage system, an electrical device, and a charging network. The battery device (100) includes a battery cell (10), a battery box (20), and a quick-change locking mechanism (30). The battery box (20) includes a mounting beam (22). The quick-change locking mechanism (30) includes a locking assembly (32) and a support member (31). The support member (31) includes a fixing part (3111) and a support top (3111). 112), the fixing part (3111) is connected to the mounting beam (22), the support top (3112) and the locking assembly (32) clamp the mounting beam (22) and the mounting bracket (400), the fixing part (3111) and the mounting beam (22) are in clearance fit and the support top (3112) abuts against the mounting beam (22), or the support top (3112) and the mounting beam (22) are in clearance fit and the fixing part (3111) abuts against the mounting beam (22).

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a battery device, energy storage device, energy storage system, power consumption device, and charging network. Background Technology

[0002] With technological advancements, the battery industry has developed rapidly, and the market share and usage frequency of electrical equipment are increasing. Electric vehicles, such as electric cars, are gradually appearing in various application scenarios. At the same time, to improve the convenience of electrical equipment, especially electric vehicles, battery swapping stations for rapid battery replacement have emerged in the market.

[0003] In related technologies, the battery pack housing is usually mounted on the mounting bracket of the electrical equipment through a quick-change locking mechanism to achieve rapid battery swapping. However, due to the inevitable dimensional tolerances that occur during the manufacturing and assembly of the housing and the quick-change locking mechanism, it is not conducive to improving the locking stability between the battery pack housing and the mounting bracket of the electrical equipment. Utility Model Content

[0004] One of the objectives of this application is to provide a battery device, energy storage device, energy storage system, power device, and charging network, aiming to solve the technical problem of the locking stability between the battery device and the mounting bracket of the power device in the related art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application embodiment is: to provide a battery device including:

[0006] Battery cell;

[0007] The battery box includes a box body and a mounting beam. The box body is used to house individual battery cells, and the mounting beam is connected to the box body.

[0008] The quick-change locking mechanism includes a locking assembly and a support member. The locking assembly is mounted on the support member and is used to engage or disengage with the mounting bracket in a first direction. The support member includes a fixing part and a support top. The fixing part is connected to the mounting beam. The support top is used to cooperate with the locking assembly in the first direction to clamp the mounting beam and the mounting bracket when the locking assembly is engaged with the mounting bracket.

[0009] Wherein, the fixing part is clearance-fitted with the mounting beam along the first direction and the top of the support abuts against the mounting beam along the first direction, or the top of the support is clearance-fitted with the mounting beam along the first direction and the fixing part abuts against the mounting beam along the first direction.

[0010] The beneficial effects of the battery device provided in this application embodiment are as follows: When the fixed part and the mounting beam are in clearance fit along the first direction and the support top abuts against the mounting beam along the first direction, the support top can effectively support the part of the mounting beam clamped by the support top and the locking component in the engaged state of the locking component and the mounting bracket, thereby reducing the risk of deformation of the mounting beam. When the support top and the mounting beam are in clearance fit along the first direction and the fixed part abuts against the mounting beam along the first direction, the connection strength between the quick-change locking mechanism and the mounting beam can be effectively improved. In this way, the assembly tolerance between the quick-change locking mechanism and the mounting beam can be reasonably configured, thereby improving the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0011] In some embodiments of this application, the mounting beam includes a first beam and a second beam, which are separated along a first direction. A fixing part is connected to the first beam, and a support top is used to cooperate with the locking assembly along the first direction to clamp the second beam and the mounting bracket when the locking assembly is engaged with the mounting bracket. The fixing part is in clearance fit with the first beam and the support top abuts against the second beam, or the support top is in clearance fit with the second beam and the fixing part abuts against the first beam.

[0012] By adopting the above technical solution, it is not only easy to connect the support component to the mounting beam, but also easy to hang the battery device on the mounting bracket of the electrical equipment by cooperating with the top of the support and the locking component. The structure is simple, easy to implement, and has high stability.

[0013] In some embodiments of this application, the mounting beam further includes a third beam, a first reinforcing structure, and a second reinforcing structure. The first beam, the second beam, and the third beam are separated along a first direction. The first reinforcing structure is connected between the first beam and the third beam, and the second reinforcing structure is connected between the second beam and the third beam.

[0014] By adopting the above technical solution, the structural strength of the mounting beam is effectively improved, thereby further enhancing the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0015] In some embodiments of this application, the first reinforcing structure includes a plurality of first reinforcing ribs, all of which are connected between the first beam and the third beam and are spaced apart along the second direction; and / or,

[0016] The second reinforcing structure includes multiple second reinforcing ribs, all of which are connected between the second beam and the third beam and are spaced apart along the second direction;

[0017] The second direction is set to intersect with the first direction.

[0018] By adopting the above technical solution, the structural strength of the mounting beam is further improved, thereby further enhancing the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0019] In some embodiments of this application, there are multiple third beams, which are disposed between the first beam and the second beam and separated along the first direction. The mounting beam also includes a third reinforcing structure, which is connected between two adjacent third beams.

[0020] By adopting the above technical solution, the structural strength of the mounting beam is further improved, thereby further enhancing the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0021] In some embodiments of this application, the third reinforcing structure includes a plurality of third reinforcing ribs, each of which is connected between two adjacent third beams and is separated along a second direction, the second direction intersecting the first direction.

[0022] By adopting the above technical solution, the structural strength of the mounting beam is further improved, thereby further enhancing the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0023] In some embodiments of this application, the fixing part and the mounting beam are fitted with a clearance in a first direction, and the battery device further includes a gasket disposed between the fixing part and the mounting beam, with the fixing part and the mounting beam clamping the gasket in a first direction.

[0024] By adopting the above technical solution, not only can the top of the support effectively support the part of the mounting beam that is clamped by the top of the support and the locking component when the locking component and the mounting bracket are engaged, thereby reducing the risk of deformation of the mounting beam, but it can also effectively improve the connection strength between the quick-change locking mechanism and the mounting beam, thereby further improving the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0025] In some embodiments of this application, the mounting beam has mounting holes that penetrate two opposing surfaces of the mounting beam along a first direction, a support is mounted in the mounting holes, and at least a portion of the locking assembly protrudes outside the mounting holes to engage or disengage with the mounting bracket.

[0026] By adopting the above technical solution, the internal space of the mounting beam can be effectively utilized, thereby making the structure of the battery device more compact.

[0027] In some embodiments of this application, the support member is interference-fitted with the mounting hole.

[0028] By adopting the above technical solution, the connection strength between the quick-change locking mechanism and the mounting beam is effectively improved, thereby further enhancing the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0029] In some embodiments of this application, the battery device further includes a connector for connecting the mounting beam and the fixing part.

[0030] By adopting the above technical solution, it is easy to connect the mounting beam to the fixing part.

[0031] In some embodiments of this application, there are multiple connectors, which are arranged separately around the axis of the quick-change locking mechanism.

[0032] By adopting the above technical solution, the connection strength between the quick-change locking mechanism and the mounting beam is effectively improved, thereby further enhancing the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0033] In some embodiments of this application, the locking assembly includes an adjusting member and a locking member. The adjusting member is mounted on the support member and is rotatable relative to the support member, having opposite first and second rotation directions. When the adjusting member rotates along the first rotation direction, it can drive the locking member to gradually approach the mounting bracket along the first direction, so that the locking member engages with the mounting bracket and cooperates with the top of the support to clamp the mounting beam and the mounting bracket. When the adjusting member rotates along the second rotation direction, it can drive the locking member to gradually move away from the mounting bracket along the first direction, so that the locking member disengages from the mounting bracket.

[0034] By adopting the above technical solution, during the process of the adjusting member rotating in the first rotation direction or the second rotation direction, the locking member can not only follow the adjusting member to rotate in the first rotation direction or the second rotation direction, but also move in the first direction to engage or disengage with the mounting bracket. The structure is simple and easy to operate.

[0035] In some embodiments of this application, the locking member includes a connecting portion and a snap-fit ​​portion. The connecting portion is connected to the adjusting member, and the snap-fit ​​portion is connected to the end of the connecting portion away from the adjusting member. When the adjusting member rotates in a first rotation direction, it can drive the locking member to gradually approach the mounting bracket in the first direction and rotate in the first rotation direction, so that the snap-fit ​​portion snaps into the mounting bracket and cooperates with the top of the support to clamp the mounting beam and the mounting bracket. When the adjusting member rotates in a second rotation direction, it can drive the locking member to gradually move away from the mounting bracket in the first direction and rotate in the second rotation direction, so that the snap-fit ​​portion disengages from the mounting bracket.

[0036] By adopting the above technical solution, during the rotation of the adjusting member along the first rotation direction or the second rotation direction, the connecting part can not only follow the adjusting member to rotate along the first rotation direction or the second rotation direction, but also move along the first direction to drive the locking part to rotate along the first rotation direction or the second rotation direction and move along the first direction, thereby realizing the locking part to lock or disengage from the mounting bracket. The structure is simple and easy to operate.

[0037] In some embodiments of this application, the support member is provided with a first limiting part, and the connecting part is provided with a second limiting part. The first limiting part and the second limiting part cooperate to guide the locking member to move along the first direction and limit the rotation angle of the locking member.

[0038] By adopting the above technical solution, the first limiting part and the second limiting part can cooperate to limit the rotation angle of the locking part. Under the cooperation and restriction of the first limiting part and the second limiting part, the locking part can be driven to engage or disengage with the mounting bracket, thereby facilitating the switching of the locking part between the locked state and the unlocked state. The structure is simple and easy to operate.

[0039] In some embodiments of this application, the first limiting part is a limiting groove recessed in the support member, and the second limiting part is a protrusion protruding on the outer peripheral surface of the connecting part, with the protrusion housed in the limiting groove.

[0040] By adopting the above technical solution, the protrusion can limit the rotation angle of the connecting part under the restriction of the limiting groove, and the protrusion can guide the connecting part to move relative to the support member along the first direction while rotating relative to the support member. The structure is simple, easy to implement, and has high stability.

[0041] In some embodiments of this application, the limiting groove includes a first groove segment, a second groove segment, and a third groove segment arranged sequentially along a first direction. The first groove segment and the third groove segment both extend along the first direction and are separated along a first rotation direction or a second rotation direction. The second groove segment is connected between the first groove segment and the second groove segment. When the snap-fit ​​part is snapped with the mounting bracket, the protrusion is located in the third groove segment. When the snap-fit ​​part is disengaged from the mounting bracket, the protrusion is located in the first groove segment.

[0042] By adopting the above technical solution, when the protrusion is located in the first and third grooves, it can only move along the first direction following the extension direction of the first and third grooves. When the protrusion is located in the second groove, it can both rotate relative to the support member and move relative to the support member along the first direction following the extension direction of the second groove, thereby limiting the rotation angle of the locking member and enabling it to move along the first direction.

[0043] In some embodiments of this application, the connecting portion is threadedly connected to the adjusting member.

[0044] By adopting the above technical solution, the adjusting component can not only drive the locking component to rotate, but also drive the locking component to move along the first direction. The structure is simple and easy to implement, and it forms a self-locking structure between the locking component and the adjusting component, thereby reducing the risk of the locking component sliding relative to the adjusting component along the first direction. This is beneficial to improving the reliability of the locking assembly and the mounting bracket locking each other.

[0045] Secondly, embodiments of this application also provide an energy storage device, including the battery device described in any of the above embodiments, wherein the battery device is used to store or provide electrical energy.

[0046] The energy storage device provided in this application has at least the following beneficial effects: the energy storage device provided in this application effectively improves the reliability of the energy storage device by using the battery device described in any of the above embodiments.

[0047] Thirdly, embodiments of this application also provide an energy storage system, including a power conversion device and the aforementioned energy storage device, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0048] The energy storage system provided in this application has at least the following beneficial effects: the energy storage system provided in this application effectively improves the reliability of the energy storage system by adopting the energy storage device described in any of the above embodiments.

[0049] Fourthly, embodiments of this application also provide an electrical device, including the battery device, the energy storage device, or the energy storage system described in any of the above embodiments, wherein the battery device is used to store or provide electrical energy.

[0050] The electrical equipment provided in this application embodiment has at least the following beneficial effects: the electrical equipment provided in this application embodiment effectively improves the reliability of the electrical equipment by adopting the battery device, energy storage device or energy storage system described in any of the above embodiments.

[0051] Fifthly, embodiments of this application also provide a charging network, including a charging pile and the aforementioned energy storage device or energy storage system, wherein the energy storage device is used to provide electrical energy to the charging pile.

[0052] The charging network provided in this application embodiment has at least the following beneficial effects: the charging network provided in this application embodiment effectively improves the reliability of the charging network by adopting the above-mentioned energy storage device or energy storage system. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of the energy storage system provided in the embodiments of this application;

[0055] Figure 2 This is a schematic diagram of the structure of the charging network provided in an embodiment of this application;

[0056] Figure 3 This is a schematic diagram of the vehicle structure provided in an embodiment of this application;

[0057] Figure 4 This is a schematic diagram of the structure of the battery device provided in the embodiments of this application;

[0058] Figure 5 for Figure 4 The diagram shows the exploded structure of the battery device.

[0059] Figure 6 for Figure 4 The diagram shows a cross-sectional view of the battery device along the AA direction.

[0060] Figure 7 for Figure 6 A schematic diagram of the battery device at point B shown;

[0061] Figure 8 A schematic diagram of the assembly structure of the quick-change locking mechanism and the battery box provided in another embodiment of this application;

[0062] Figure 9 An exploded view of the quick-change locking mechanism provided in an embodiment of this application;

[0063] Figure 10 for Figure 9 The diagram shows the structure of the guide sleeve in the quick-change locking mechanism.

[0064] The following are the labeling elements in the figure:

[0065] 1. Energy storage devices; 2. Power conversion equipment; 3. Power generation equipment; 4. Charging piles; 5. Connectors;

[0066] 1000, vehicles;

[0067] 100. Battery assembly; 10. Battery cell; 20. Battery box; 21. Box body; 211. First part; 212. Second part; 22. Mounting beam; 221. First beam; 222. Second beam; 223. Third beam; 224. First reinforcing structure; 225. Second reinforcing structure; 226. Third reinforcing structure; 227. Mounting hole; 30. Quick-change locking mechanism; 31. Support member; 311. Sleeve; 31 11. Fixing part; 3112. Support top; 312. Guide sleeve; 3121. First limiting part; 31211. First groove segment; 31212. Second groove segment; 31213. Third groove segment; 32. Locking assembly; 321. Locking member; 3211. Connecting part; 3212. Snap-fit ​​part; 3213. Second limiting part; 322. Adjusting member; 323. Anti-reverse member; 40. Gasket; 50. Connecting member; 60. Electrical connector;

[0068] 200. Controller;

[0069] 300. Motor;

[0070] 400. Mounting bracket. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0072] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for ease of description only, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0073] 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 the various components shown in the accompanying drawings in the embodiments of this application are merely illustrative and should not constitute any limitation on this application.

[0074] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. A battery generally includes a casing for encapsulating one or more battery cells. The casing can, to a certain extent, prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0075] With technological advancements, the battery industry has developed rapidly, and the market share and usage frequency of electrical equipment are increasing. Electric vehicles, such as electric cars, are gradually appearing in various application scenarios. At the same time, to improve the convenience of electrical equipment, especially electric vehicles, battery swapping stations for rapid battery replacement have emerged in the market.

[0076] In related technologies, electrical equipment typically includes a mounting bracket and a battery pack. The battery pack typically includes individual battery cells, a battery box, and a quick-change locking mechanism. The battery box is used to hold the individual battery cells, and the quick-change locking mechanism is used to lock the battery box onto the mounting bracket. After the battery pack's power is depleted, the battery pack can be removed from the mounting bracket by operating the quick-change locking mechanism. Then, a fully charged battery pack is connected to the mounting bracket, and the quick-change locking mechanism is used again to lock the battery pack onto the mounting bracket, thereby realizing the battery pack replacement operation.

[0077] However, due to the inevitable dimensional tolerances that occur during the manufacturing and assembly of the battery box and quick-change locking mechanism, the quick-change locking mechanism may not provide adequate support for the battery box, leading to deformation of the battery box and loosening of the quick-change locking mechanism after assembly. This is detrimental to improving the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0078] Based on the above considerations, in order to improve the locking stability between the battery device and the mounting bracket of the electrical equipment, the battery device provided in this application embodiment, when the fixing part and the mounting beam are in clearance fit along the first direction and the support top abuts against the mounting beam along the first direction, can effectively support the part of the mounting beam clamped by the support top and the locking component in the engaged state of the locking component and the mounting bracket, thereby reducing the risk of deformation of the mounting beam. When the support top and the mounting beam are in clearance fit along the first direction and the fixing part abuts against the mounting beam along the first direction, the connection strength between the quick-change locking mechanism and the mounting beam can be effectively improved. In this way, the assembly tolerance between the quick-change locking mechanism and the mounting beam can be reasonably configured, thereby improving the locking stability between the battery device and the mounting bracket of the electrical equipment.

[0079] The technical solutions described in this application are applicable to battery devices and electrical equipment using batteries. These electrical devices can be, but are not limited to, vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles. Spacecraft include airplanes, rockets, space shuttles, and spacecraft. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0080] The battery device 100 provided in this application embodiment is applicable to various energy storage devices 1 and electrical devices that use the battery device 100. Please refer to... Figure 5 , Figure 5 This is an exploded structural diagram of the battery device 100 provided in an embodiment of this application. The battery device 100 may include one or more battery cell 10 assemblies for providing voltage and capacity. The battery cell 10 assembly may include multiple battery cells 10, which are connected in series, parallel, or mixed connection via a busbar component.

[0081] In some embodiments, the battery cell 10 assembly is typically formed by arranging a plurality of battery cells 10.

[0082] As an example, the battery cell 10 assembly can be a battery module, which is formed by arranging and fixing multiple battery cells 10 together to form an independent module. As an example, a battery module can be formed by bundling multiple battery cells 10 together with cable ties.

[0083] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 21 and one or more battery cell 10 assemblies, the battery cell 10 assemblies being housed in the housing 21.

[0084] As an example, the battery cell 10 assembly can be a battery module, and the battery cell 10 assembly can be housed in the housing 21 by fixing the battery module in the housing 21.

[0085] As an example, the battery cell 10 assembly can also be housed in the housing 21 by directly fixing multiple battery cells 10 to the housing 21.

[0086] Energy storage device 1 can be used in battery swapping stations, energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage device 1 may include one or more battery clusters to increase its voltage and capacity. A battery cluster may include multiple battery devices 100, which are connected in series via a busbar to increase the voltage of energy storage device 1. When energy storage device 1 includes multiple battery clusters, the clusters are connected in parallel to increase its capacity. Energy storage device 1 can store electrical energy as needed and output it when appropriate. For example, energy storage device 1 can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours.

[0087] In some embodiments, the energy storage device 1 is an energy storage container or an energy storage cabinet.

[0088] In some embodiments, the energy storage device 1 may include a cabinet and one or more battery clusters, with the battery clusters housed in the cabinet.

[0089] In some embodiments, the energy storage device 1 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.

[0090] As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery device 100 via pipelines for regulating the temperature of the individual battery cells 10.

[0091] 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 auxiliary battery management units, integrated switches, and other modules.

[0092] As an example, the central control module can serve as the battery management unit of energy storage device 1, used to monitor and manage energy storage device 1. The central control module can monitor information such as current, voltage, power, state of charge, or temperature of energy storage device 1. For example, it can control the charging and discharging current and voltage of energy storage device 1. As an example, the central control module includes modules such as an insulation monitoring module, a main battery management unit, and an Ethernet and fiber optic conversion module.

[0093] 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.

[0094] As an example, the power distribution module can be used to distribute power to the modules in the energy storage device 1 that require electricity.

[0095] Please see Figure 1 , Figure 1 This is a schematic diagram of the energy storage system provided in an embodiment of this application. The energy storage system provided in this application can be any power system that requires the use of energy storage device 1. The energy storage system may include one or more energy storage devices 1 and a power conversion device 2, wherein the power conversion device 2 is used to connect between the power generation device 3 and the energy storage device 1. The power generation device 3 is used to generate electrical energy, and the electrical energy generated by the power generation device 3 can be stored in the energy storage device 1 through the power conversion device 2. As an example, the power generation device 3 may specifically be a solar panel, a hydroelectric power generation device 3, a thermal power generation device 3, a wind power generation device 3, etc. The specific type of the power generation device 3 is not limited in this application.

[0096] Please see Figure 2 , Figure 2 This is a schematic diagram of the charging network provided in an embodiment of this application. The charging network provided in this embodiment can be any charging system that requires the use of the energy storage device 1. The charging network may include the energy storage device 1 and the charging pile 4. The charging pile 4 is electrically connected to the energy storage device 1, and the energy storage device 1 is used to provide electrical energy to the charging pile 4. The charging pile 4 is electrically connected to the battery device 100 in the energy storage device 1 via a cable. The battery device 100 can provide its stored electrical energy to the charging pile 4. The charging pile 4 has one or more connectors 5, which are used to connect to an electrical device (such as a vehicle 1000) so as to replenish the energy of the electrical device.

[0097] Electrical devices can be, but are not limited to, mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles 1000, ships, and spacecraft, such as airplanes, rockets, space shuttles, and spacecraft. For ease of explanation, the following embodiments use a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0098] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a vehicle 1000 provided in an embodiment of this application. A battery device 100 is disposed inside the vehicle 1000, and the battery device 100 may be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. In some embodiments, the vehicle 1000 includes a mounting bracket 400, on which the battery device 100 can be mounted. As an example, the mounting bracket 400 can be the frame of the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery to supply power to the motor 300, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0099] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0100] In some embodiments, the housing 21 of the battery device 100 may be part of the chassis structure of the vehicle 1000. For example, a portion of the housing 21 may be at least a portion of the floor of the vehicle 1000, or a portion of the housing 21 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000.

[0101] The housing 21 provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0102] Firstly, please refer to the following: Figures 4 to 8 This application provides a battery device 100 including a battery cell 10, a battery box 20, and a quick-change locking mechanism 30. The battery box 20 includes a box body 21 and a mounting beam 22. The box body 21 is used to accommodate the battery cell 10, and the mounting beam 22 is connected to the box body 21. The quick-change locking mechanism 30 includes a locking component 32 and a support member 31. The locking component 32 is installed on the support member 31 and is used to engage or disengage with the mounting bracket 400 in a first direction. The support member 31 includes a fixing part 3111 and a support top 3112. The fixing part 3111 is connected to the mounting beam 22, and the support top 3112 is used to cooperate with the locking component 32 in the first direction to clamp the mounting beam 22 and the mounting bracket 400 when the locking component 32 is engaged with the mounting bracket 400. In this configuration, the fixing part 3111 is clearance-fitted with the mounting beam 22 along the first direction and the support top 3112 abuts against the mounting beam 22 along the first direction; or, the support top 3112 is clearance-fitted with the mounting beam 22 along the first direction and the fixing part 3111 abuts against the mounting beam 22 along the first direction.

[0103] First, it should be noted that the battery device 100 has a first direction, a second direction, and a third direction. In some embodiments, such as... Figure 4 and Figure 5 As shown, the first direction can be Figure 4 and Figure 5 The Z direction shown is the height direction of the battery device 100. The second direction can be... Figure 4 and Figure 5 The Y direction shown is the width direction of the battery device 100. The third direction can be... Figure 5 The X direction shown is the length direction of the battery device 100.

[0104] The battery cell 10 is the smallest unit for storing electrical energy. The battery cell 10 can be a secondary battery or a primary battery. A secondary battery is one that can be recharged to activate the active materials and continue to be used after discharge. A primary battery is one that cannot be recharged to activate the active materials and continue to be used after discharge. The battery cell 10 can also 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, or a lead-acid battery cell. The battery cell 10 can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell 10 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, etc. This application does not impose any particular limitations.

[0105] In some embodiments, the battery cell 10 may include a housing, an electrode assembly, and electrode terminals.

[0106] The housing may include a casing and end caps. The casing is a component that provides an internal environment for the battery cell 10, which can accommodate electrode assemblies. The casing may be a separate component with an opening. The internal environment of the battery cell 10 is formed by covering the opening with the end cap, and the electrode assemblies are housed within this internal environment. Specifically, the casing and end caps may form a common connection surface before other components are inserted into the casing. When it is necessary to encapsulate the interior of the casing, the end caps are then placed over the opening of the casing. Optionally, the casing can be of various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the casing can be determined according to the specific shape and size of the electrode assemblies. The casing material can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and is not specifically limited here.

[0107] An end cap is a component that covers the opening of the housing to isolate the internal environment of the battery cell 10 from the external environment. The shape of the end cap can be adapted to the shape of the housing to fit the housing. In some embodiments, the end cap can be made of a material with a certain hardness and strength, so that the end cap is not easily deformed when subjected to compression and impact, so that the battery cell 10 can have higher structural strength and improve safety performance. Of course, this embodiment does not limit the material of the end cap to a single material; the end cap can be made of copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. In some embodiments, the end cap can also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of the battery cell 10 reaches a threshold.

[0108] Electrode components are the parts in a battery cell 10 where electrochemical reactions occur. A battery cell 10 may contain one or more electrode components. Electrode components are mainly made of positive electrode sheets, negative electrode sheets, and separators using winding or lamination processes.

[0109] In some embodiments, the electrode assembly is a wound structure. The positive electrode and the negative electrode are wound into a wound structure.

[0110] In some embodiments, the electrode assembly has a stacked structure.

[0111] As an example, multiple positive and negative electrodes can be set, and multiple positive and multiple negative electrodes can be stacked alternately.

[0112] As an example, multiple positive electrode plates can be provided, and negative electrode plates can be folded to form multiple stacked folded segments, with a positive electrode plate sandwiched between adjacent folded segments.

[0113] As an example, both the positive and negative electrode plates are folded to form multiple stacked folded segments.

[0114] As an example, multiple separators can be provided, each positioned between any adjacent positive or negative electrode plates.

[0115] As an example, the separators can be continuously arranged, either by folding or rolling between any adjacent positive or negative electrode plates.

[0116] During the charging and discharging process of a single battery cell 10, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrode plates. A separator is placed between the positive and negative electrode plates to prevent short circuits while allowing active ions to pass through.

[0117] The positive electrode may include a positive current collector and a positive active material disposed on at least one surface of the positive current collector. The negative electrode may include a negative current collector and a negative active material disposed on at least one surface of the negative current collector.

[0118] In some embodiments, the battery cell 10 further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. This application does not impose specific limitations on the type of electrolyte, which can be selected according to requirements. The electrolyte can be liquid, gel, or solid.

[0119] In some embodiments, the electrode assembly has tabs that can conduct current from the electrode assembly. The tabs include a positive tab and a negative tab, with the positive tab electrically connected to a positive electrode plate and the negative tab electrically connected to a negative electrode plate.

[0120] Electrode terminals are components electrically connected to the electrode assembly for outputting or inputting electrical energy into the battery cell 10. Electrode terminals may be disposed on an end cap, with a portion extending into the internal environment of the battery cell 10 and directly or indirectly connected to the tabs of the electrode assembly, while the other portion is exposed in the external environment of the battery cell 10 and connected to components such as a busbar or sampling module. In some embodiments, the electrode terminals include a first electrode terminal and a second electrode terminal, with the first electrode terminal electrically connected to the positive tab and the second electrode terminal electrically connected to the negative tab. Optionally, the electrode terminals may have a columnar structure, such as a cylindrical or prismatic structure, or a plate-like structure, such as a circular or square plate. Other irregular three-dimensional structures are also possible, without specific limitations. The electrode terminals may be made of one or more metal materials, including but not limited to copper, aluminum, nickel, zinc, and iron, without specific limitations.

[0121] The battery case 20 is a component used to provide the internal environment of the battery device 100. The case body 21 is the main body of the battery case 20 and is used to house the individual battery cells 10. In some embodiments, the case body 21 may include a first portion 211 and a second portion 212, which are fastened together to form a closed space inside the battery case 20 to house the individual battery cells 10. Here, "closed" refers to covering or shutting off; it can be sealed or unsealed. The first portion 211 and the second portion 212 may be a single molded component or assembled from multiple components.

[0122] Mounting beam 22 is connected to housing 21 and provides an installation environment for quick-change locking mechanism 30. Understandably, mounting beam 22 is connected to the outside of housing 21. In some embodiments, battery cell 10 is housed within first portion 211, and second portion 212 covers first portion 211 to enclose its internal space. Mounting beam 22 is connected to first portion 211. In some embodiments, there are two mounting beams 22, which may be located on opposite sides of housing 21 along a second direction or on opposite sides of housing 21 along a third direction. In other embodiments, there are three mounting beams 22, where two mounting beams 22 may be located on opposite sides of housing 21 along the second direction, and the third mounting beam 22 is connected to one side of housing 21 along a third direction. Understandably, each mounting beam 22 is provided with at least one quick-change locking mechanism 30. As an example, each mounting beam 22 is provided with multiple quick-change locking mechanisms 30, and the multiple quick-change locking mechanisms 30 on each mounting beam 22 are arranged separately along the length direction of the corresponding mounting beam 22.

[0123] The quick-change locking mechanism 30 is used to lock the battery box 20 onto the mounting bracket 400 of the electrical equipment. Understandably, the battery device 100 can be removed from the mounting bracket 400 by operating the quick-change locking mechanism 30, or the battery device 100 can be locked onto the mounting bracket 400 by operating the quick-change locking mechanism 30, thereby realizing the replacement operation of the battery device 100.

[0124] The support member 31 is connected to the mounting beam 22 and provides an installation environment for the locking assembly 32. Understandably, the support member 31 also supports the battery box 20 after the quick-change locking mechanism 30 is engaged with the mounting bracket 400 of the electrical equipment. The fixing part 3111 is connected to the mounting beam 22, and the connection between the fixing part 3111 and the mounting beam 22 can be, but is not limited to, welding, riveting, or threaded connection. The support top 3112 is used to cooperate with the locking assembly 32 in a first direction to clamp the mounting beam 22 and the mounting bracket 400 when the locking assembly 32 is engaged with the mounting bracket 400, thereby supporting the mounting beam 22.

[0125] In some embodiments, the support member 31 includes a sleeve 311, one end of which forms a fixing portion 3111, and the other end of which forms a support top 3112. A portion of the locking assembly 32 is installed inside the sleeve 311, and another portion of the locking assembly 32 protrudes outward along a first direction to engage or disengage with the mounting bracket 400. As an example, the sleeve 311 includes a cylindrical body and a connecting flange. The connecting flange is disposed at one end of the cylindrical body and protrudes from the outer peripheral wall of the cylindrical body to form the fixing portion 3111, and the other end of the cylindrical body forms the support top 3112.

[0126] In some embodiments, please refer to Figure 7 The fixing part 3111 and the mounting beam 22 are fitted with a clearance in the first direction, and the support top 3112 abuts against the mounting beam 22 in the first direction. That is, there is a gap between the fixing part 3111 and the mounting beam 22. The size of the gap depends on the assembly tolerance between the support member 31 and the mounting beam 22. The support top 3112 abuts against the mounting beam 22 in the first direction. In other words, the assembly tolerance between the support member 31 and the mounting beam 22 is entirely allocated between the fixing part 3111 and the mounting beam 22, while the support top 3112 abuts against the mounting beam 22. This allows the support top 3112 to effectively support the part of the mounting beam 22 that is clamped by the support top 3112 and the locking member 32 in the engaged state of the locking assembly 32 and the mounting bracket 400, thereby reducing the risk of deformation of the mounting beam 22.

[0127] In other embodiments, please refer to Figure 8 The support top 3112 and the mounting beam 22 are fitted with a clearance in the first direction, and the fixing part 3111 abuts against the mounting beam 22 in the first direction. That is, there is a gap between the support top 3112 and the mounting beam 22. The size of the gap depends on the assembly tolerance between the support member 31 and the mounting beam 22. The fixing part 3111 abuts against the mounting beam 22 in the first direction. In other words, the assembly tolerance between the support member 31 and the mounting beam 22 is entirely allocated between the support top 3112 and the mounting beam 22, while the fixing part 3111 abuts against the mounting beam 22 so that the fixing part 3111 and the mounting beam 22 fit tightly, thereby improving the connection strength between the fixing part 3111 and the mounting beam 22.

[0128] The locking assembly 32 is mounted on the support 31 and is movable in a first direction to engage or disengage from the mounting bracket 400. Understandably, the locking assembly 32 has a locked state and an unlocked state. When the locking assembly 32 is in the locked state, the battery device 100 is locked to the mounting bracket 400 via the locking assembly 32. When the locking assembly 32 is in the unlocked state, the locking assembly 32 can disengage from the mounting bracket 400 to remove the battery device 100 from the mounting bracket 400.

[0129] In some embodiments, the battery device 100 further includes an electrical connector 60, which is electrically connected to the battery cell 10 to transmit electrical energy or electrical signals from the battery cell 10 to the outside. In some embodiments, the battery device 100 includes a plurality of battery cells 10, each of which is electrically connected to the electrical connector 60 to transmit electrical energy or electrical signals from the plurality of battery cells 10 to the outside. Understandably, when the electrical connector 60 is a high-voltage connector 5, the electrical connector 60 is plugged into the power outlet of the electrical device to transmit electrical energy from the battery cell 10 to the electrical appliance of the electrical device. Taking the electrical device as a vehicle 1000 as an example, the electrical connector 60 is plugged into the power outlet of the electrical device to transmit electrical energy from the battery cell 10 to the motor 300 of the vehicle 1000, thereby driving the motor 300 to operate. When the electrical connector 60 is a low-voltage connector 5, the electrical connector 60 is plugged into the power socket of the electrical device to transmit the electrical signal of the battery cell 10 to the controller 200 of the electrical device. The electrical signal can be, but is not limited to, voltage signal, current signal, temperature signal, etc.

[0130] When the battery device 100 provided in this application embodiment has a clearance fit between the fixing part 3111 and the mounting beam 22 along the first direction and the support top 3112 abuts against the mounting beam 22 along the first direction, the support top 3112 can effectively support the part of the mounting beam 22 that is clamped by the support top 3112 and the locking component 32 in the engaged state of the locking component 32 and the mounting bracket 400, so as to reduce the risk of deformation of the mounting beam 22. When the support top 3112 and the mounting beam 22 have a clearance fit along the first direction and the fixing part 3111 abuts against the mounting beam 22 along the first direction, the connection strength between the quick-change locking mechanism 30 and the mounting beam 22 can be effectively improved. In this way, the assembly tolerance between the quick-change locking mechanism 30 and the mounting beam 22 can be reasonably configured, thereby improving the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0131] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The mounting beam 22 includes a first beam body 221 and a second beam body 222. The first beam body 221 and the second beam body 222 are separated along a first direction. The fixing part 3111 is connected to the first beam body 221. The support top 3112 is used to cooperate with the locking assembly 32 along the first direction to clamp the second beam body 222 and the mounting bracket 400 when the locking assembly 32 is engaged with the mounting bracket 400. The fixing part 3111 is in clearance fit with the first beam body 221 and the support top 3112 abuts against the second beam body 222. Alternatively, the support top 3112 is in clearance fit with the second beam body 222 and the fixing part 3111 abuts against the first beam body 221.

[0132] The first beam 221 is the part of the mounting beam 22 used to connect the fixing part 3111. The second beam 222 is the part of the mounting beam 22 that is clamped by the top support 3112 and the locking assembly 32. The first beam 221 and the second beam 222 are separated along a first direction, that is, the first beam 221 and the second beam 222 are separated along the locking direction of the locking assembly 32 and the mounting bracket 400.

[0133] In some embodiments, both the first beam 221 and the second beam 222 are plate-like structures, and the first beam 221 and the second beam 222 are arranged parallel to each other.

[0134] In some embodiments, please refer to Figure 7 The fixing part 3111 and the first beam 221 are fitted with a clearance in the first direction, and the support top 3112 abuts against the second beam 222 in the first direction. That is, there is a gap between the fixing part 3111 and the first beam 221. The size of the gap depends on the assembly tolerance between the support member 31 and the mounting beam 22. The support top 3112 abuts against the second beam 222 in the first direction. In other words, the assembly tolerance between the support member 31 and the mounting beam 22 is entirely allocated between the fixing part 3111 and the first beam 221, while the support top 3112 abuts against the second beam 222. This allows the support top 3112 to effectively support the part of the second beam 222 that is clamped by the support top 3112 and the locking member 32 in the engaged state of the locking assembly 32 and the mounting bracket 400, thereby reducing the risk of deformation of the second beam 222.

[0135] In other embodiments, please refer to Figure 8 The support top 3112 and the second beam 222 are fitted with a clearance in the first direction, and the fixing part 3111 abuts against the first beam 221 in the first direction. That is, there is a gap between the support top 3112 and the second beam 222. The size of the gap depends on the assembly tolerance between the support member 31 and the mounting beam 22. The fixing part 3111 abuts against the first beam 221 in the first direction. In other words, the assembly tolerance between the support member 31 and the mounting beam 22 is entirely allocated between the support top 3112 and the second beam 222, while the fixing part 3111 abuts against the first beam 221 so that the fixing part 3111 and the first beam 221 fit tightly, thereby improving the connection strength between the fixing part 3111 and the first beam 221.

[0136] By adopting the above technical solution, it is not only easy to connect the support 31 to the mounting beam 22, but also easy to hang the battery device 100 on the mounting bracket 400 of the electrical equipment by cooperating with the top support 3112 and the locking assembly 32. The structure is simple, easy to implement, and has high stability.

[0137] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The mounting beam 22 also includes a third beam 223, a first reinforcing structure 224, and a second reinforcing structure 225. The first beam 221, the second beam 222, and the third beam 223 are separated along a first direction. The first reinforcing structure 224 is connected between the first beam 221 and the third beam 223, and the second reinforcing structure 225 is connected between the second beam 222 and the third beam 223.

[0138] In some embodiments, the first beam 221, the second beam 222, and the third beam 223 are all plate-like structures, and the first beam 221, the second beam 222, and the third beam 223 are arranged parallel to each other.

[0139] The first reinforcing structure 224 is used to support the first beam 221 and the third beam 223 along the first direction, so as to reduce the risk of deformation or displacement of the first beam 221 and the third beam 223 along the first direction. The first reinforcing structure 224 can be, but is not limited to, a columnar structure, a ribbed structure, etc.

[0140] The second reinforcing structure 225 is used to support the second beam 222 and the third beam 223 along the first direction, so as to reduce the risk of deformation or displacement of the second beam 222 and the third beam 223 along the first direction. The second reinforcing structure 225 can be, but is not limited to, a columnar structure, a ribbed structure, etc.

[0141] By adopting the above technical solution, the structural strength of the mounting beam 22 is effectively improved, thereby further enhancing the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0142] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The first reinforcing structure 224 includes a plurality of first reinforcing ribs, which are all connected between the first beam 221 and the third beam 223 and are separated along the second direction.

[0143] Please refer to other embodiments of this application as well. Figure 7 and Figure 8 The second reinforcing structure 225 includes a plurality of second reinforcing ribs, which are all connected between the second beam 222 and the third beam 223 and are spaced apart along the second direction.

[0144] Please refer to further embodiments of this application. Figure 7 and Figure 8The first reinforcing structure 224 includes a plurality of first reinforcing ribs, which are all connected between the first beam 221 and the third beam 223 and are separated along the second direction. The second reinforcing structure 225 includes a plurality of second reinforcing ribs, which are all connected between the second beam 222 and the third beam 223 and are separated along the second direction.

[0145] In some embodiments, a plurality of first reinforcing ribs are arranged parallel to each other and spaced apart along a second direction.

[0146] In some embodiments, a plurality of second reinforcing ribs are arranged parallel to each other and spaced apart along a second direction.

[0147] In some embodiments, the second direction is perpendicular to the first direction. For example, the first direction is the height direction of the battery device 100, and the second direction is the width direction of the battery device 100. For example, the first direction is the height direction of the battery device 100, and the second direction is the length direction of the battery device 100.

[0148] By adopting the above technical solution, the structural strength of the mounting beam 22 is further improved, thereby further enhancing the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0149] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The number of third beams 223 is multiple. Multiple third beams 223 are disposed between the first beam 221 and the second beam 222 and are separated along the first direction. The mounting beam 22 also includes a third reinforcing structure 226, which is connected between two adjacent third beams 223.

[0150] The third reinforcing structure 226 is used to support two adjacent third beams 223 along the first direction to reduce the risk of deformation or displacement of the third beams 223 along the first direction. The third reinforcing structure 226 can be, but is not limited to, a columnar structure or a ribbed structure.

[0151] The number of third beams 223 can be determined according to actual application needs, specifically 2, 3, 4, etc.

[0152] By adopting the above technical solution, the structural strength of the mounting beam 22 is further improved, thereby further enhancing the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0153] Please refer to some embodiments of this application as well. Figure 7 and Figure 8The third reinforcing structure 226 includes multiple third reinforcing ribs, each of which is connected between two adjacent third beams 223 and is separated along the second direction.

[0154] In some embodiments, a plurality of third reinforcing ribs are arranged parallel to each other and spaced apart along a second direction.

[0155] In some embodiments, the second direction is perpendicular to the first direction. For example, the first direction is the height direction of the battery device 100, and the second direction is the width direction of the battery device 100. For example, the first direction is the height direction of the battery device 100, and the second direction is the length direction of the battery device 100.

[0156] By adopting the above technical solution, the structural strength of the mounting beam 22 is further improved, thereby further enhancing the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0157] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The fixing part 3111 and the mounting beam 22 are fitted with a clearance in the first direction. The battery device 100 also includes a gasket 40 disposed between the fixing part 3111 and the mounting beam 22. The fixing part 3111 and the mounting beam 22 are fitted together in the first direction to clamp the gasket 40.

[0158] In other words, in this embodiment, the fixing part 3111 is clearance-fitted with the mounting beam 22 and the support top 3112 abuts against the mounting beam 22.

[0159] Understandably, along the first direction, the gasket 40 is disposed between the fixing part 3111 and the mounting beam 22 to fill the gap between the fixing part 3111 and the mounting beam 22 along the first direction, thereby playing a role in force transmission between the fixing part 3111 and the mounting beam 22. The gasket 40 can be made of a rigid material, such as aluminum alloy, steel, copper, iron, etc. The gasket 40 can also be made of a flexible material, such as rubber, silicone, etc.

[0160] In some embodiments, the mounting beam 22 includes a first beam body 221 and a second beam body 222, which are separated along a first direction. A fixing part 3111 is connected to the first beam body 221. A support top 3112 is used to cooperate with the locking assembly 32 along the first direction to clamp the second beam body 222 and the mounting bracket 400 when the locking assembly 32 is engaged with the mounting bracket 400. Along the first direction, the fixing part 3111 is clearance-fitted with the first beam body 221 and a gasket 40 is disposed between the fixing part 3111 and the first beam body 221.

[0161] By adopting the above technical solution, not only can the support top 3112 effectively support the part of the mounting beam 22 that is clamped by the support top 3112 and the locking component 32 in the engaged state of the locking component 32 and the mounting bracket 400, thereby reducing the risk of deformation of the mounting beam 22, but it can also effectively improve the connection strength between the quick-change locking mechanism 30 and the mounting beam 22, thereby further improving the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0162] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The mounting beam 22 has mounting holes 227 that penetrate the two opposite surfaces of the mounting beam 22 along the first direction. The support member 31 is installed in the mounting holes 227. At least a portion of the locking assembly 32 protrudes to the outside of the mounting holes 227 to engage or disengage with the mounting bracket 400.

[0163] Mounting hole 227 is used to provide mounting space for quick-change locking mechanism 30. The shape of mounting hole 227 can be adapted to the outer peripheral contour shape of support member 31. For example, both the shape of mounting hole 227 and the outer peripheral contour shape of support member 31 are circular.

[0164] In some embodiments, the mounting beam 22 includes a first beam body 221 and a second beam body 222, which are separated along a first direction. A mounting hole 227 penetrates the first beam body 221 and the second beam body 222 along the first direction. A fixing part 3111 extends out of the mounting hole 227 and is connected to the side of the first beam body 221 facing away from the second beam body 222. A support top 3112 is used to support the side of the second beam body 222 facing the first beam body 221.

[0165] By adopting the above technical solution, the internal space of the mounting beam 22 can be effectively utilized, thereby making the structure of the battery device 100 more compact.

[0166] In some embodiments of this application, the support 31 is interference-fitted with the mounting hole 227.

[0167] In other words, the outer diameter of the support member 31 is slightly larger than the diameter of the mounting hole 227. After the support member 31 is placed in the mounting hole 227, the outer peripheral wall of the support member 31 is pressed tightly against the hole wall of the mounting hole 227 so that the support member 31 is fixed in the mounting hole 227.

[0168] By adopting the above technical solution, the connection strength between the quick-change locking mechanism 30 and the mounting beam 22 is effectively improved, thereby further enhancing the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0169] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 The battery device 100 also includes a connector 50 for connecting the mounting beam 22 and the fixing part 3111.

[0170] The connector 50 is used to connect the fixing part 3111 and the mounting beam 22. The connector 50 can be, but is not limited to, bolts, rivets, etc.

[0171] In some embodiments, the support member 31 includes a sleeve 311, which includes a cylindrical body and a connecting flange. The connecting flange is disposed at one end of the cylindrical body and protrudes from the outer peripheral wall of the cylindrical body to form a fixing part 3111. The other end of the cylindrical body forms a support top 3112. The locking assembly 32 is installed on the cylindrical body. The mounting beam 22 includes a first beam body 221 and a second beam body 222 and has a mounting hole 227. The mounting hole 227 penetrates the first beam body 221 and the second beam body 222 along a first direction. The connecting flange is located outside the mounting hole 227 and on the side of the first beam body 221 facing away from the second beam body 222. The connector 50 connects the first beam body 221 and the connecting flange. The support top 3112 is used to support the side of the second beam body 222 facing the first beam body 221.

[0172] By adopting the above technical solution, it is easy to connect the mounting beam 22 to the fixing part 3111.

[0173] Please refer to some embodiments of this application as well. Figure 7 and Figure 8 There are multiple connectors 50, which are arranged around the axis of the quick-change locking mechanism 30.

[0174] The number of connectors 50 can be determined according to the actual application requirements, specifically 4, 5, 6, 7, etc.

[0175] In some embodiments, a plurality of connectors 50 are evenly distributed around the axis of the quick-change locking mechanism 30.

[0176] By adopting the above technical solution, the connection strength between the quick-change locking mechanism 30 and the mounting beam 22 is effectively improved, thereby further enhancing the locking stability between the battery device 100 and the mounting bracket 400 of the electrical equipment.

[0177] Please refer to some embodiments of this application as well. Figures 7 to 9The locking assembly 32 includes an adjusting member 322 and a locking member 321. The adjusting member 322 is mounted on the support member 31. The adjusting member 322 is rotatable relative to the support member 31 and has opposite first and second rotation directions. When the adjusting member 322 rotates along the first rotation direction, it can drive the locking member 321 to gradually approach the mounting bracket 400 along the first direction, so that the locking member 321 engages with the mounting bracket 400 and cooperates with the support top 3112 to clamp the mounting beam 22 and the mounting bracket 400. When the adjusting member 322 rotates along the second rotation direction, it can drive the locking member 321 to gradually move away from the mounting bracket 400 along the first direction, so that the locking member 321 disengages from the mounting bracket 400.

[0178] The adjusting member 322 is used to drive the locking member 321 to move closer to or further away from the mounting bracket 400 in the first direction, so that the locking member 321 can engage or disengage from the mounting bracket 400, thereby enabling the locking assembly 32 to switch between the locked state and the unlocked state.

[0179] Understandably, the axis of the quick-change locking mechanism 30 extends along a first direction, one of the first rotation direction and the second rotation direction is a clockwise direction around the axis, and the other of the first rotation direction and the second rotation direction is a counterclockwise direction around the axis.

[0180] In some embodiments, the support member 31 includes a sleeve 311, one end of which forms a fixing portion 3111, and the other end of which forms a support top 3112. An adjusting member 322 is rotatably mounted inside the sleeve 311. A portion of a locking member 321 extends into the sleeve 311 and connects to the adjusting member 322, while another portion of the locking member 321 extends out of the sleeve 311 and is used to engage or disengage with the mounting bracket 400. As an example, the locking assembly 32 also includes a stop member 323, which extends out of the sleeve 311 through one port and is mounted at the other port of the sleeve 311 to confine the adjusting member 322 inside the sleeve 311.

[0181] By adopting the above technical solution, during the process of the adjusting member 322 rotating in the first rotation direction or the second rotation direction, the locking member 321 can not only follow the adjusting member 322 to rotate in the first rotation direction or the second rotation direction, but also move in the first direction to engage or disengage with the mounting bracket 400. The structure is simple and easy to operate.

[0182] Please refer to some embodiments of this application as well. Figures 7 to 9The locking member 321 includes a connecting part 3211 and a snap-fit ​​part 3212. The connecting part 3211 is connected to the adjusting member 322, and the snap-fit ​​part 3212 is connected to the end of the connecting part 3211 away from the adjusting member 322. When the adjusting member 322 rotates in the first rotation direction, it can drive the locking member 321 to gradually approach the mounting bracket 400 in the first direction and rotate in the first rotation direction, so that the snap-fit ​​part 3212 snaps into the mounting bracket 400 and cooperates with the support top 3112 to clamp the mounting beam 22 and the mounting bracket 400. When the adjusting member 322 rotates in the second rotation direction, it can drive the locking member 321 to gradually move away from the mounting bracket 400 in the first direction and rotate in the second rotation direction, so that the snap-fit ​​part 3212 disengages from the mounting bracket 400.

[0183] Understandably, when the adjusting member 322 rotates along the first rotation direction or the second rotation direction, the connecting part 3211 can not only follow the adjusting member 322 to rotate along the first rotation direction or the second rotation direction, but can also move closer to or away from the mounting bracket 400 along the first direction, so as to drive the locking part 3212 to rotate along the first rotation direction or the second rotation direction and move closer to or away from the mounting bracket 400 along the first direction, so that the locking part 3212 can engage or disengage with the mounting bracket 400, thereby realizing the switching of the locking assembly 32 between the locked state and the unlocked state.

[0184] In some embodiments, the support member 31 includes a sleeve 311, one end of which forms a fixing part 3111 and the other end of which forms a support top 3112. An adjusting member 322 is rotatably installed inside the sleeve 311. A connecting part 3211 extends along a first direction, one end of which extends into the sleeve 311 and is connected to the adjusting member 322, and the other end of which extends out to the outside of the sleeve 311 and is connected to the locking part 3212. The locking part 3212 extends along a direction perpendicular to the first direction, and both ends of the locking part 3212 protrude relative to the sidewall of the connecting part 3211. The mounting bracket 400 has a locking hole that extends along a direction perpendicular to the first direction, and the shape of the locking hole is adapted to the shape of the locking part 3212. When the quick-change locking mechanism 30 needs to be switched to the locked state, the latching part 3212 can be brought closer to the mounting bracket 400 along the first direction and pass through the lock hole. Then, the latching part 3212 continues to rotate a preset angle along the first rotation direction so that the extension direction of the latching part 3212 intersects the extension direction of the lock hole. At this time, the latching part 3212 is latched with the mounting bracket 400. When the quick-change locking mechanism 30 needs to be switched to the unlocked state, the latching part 3212 can be rotated a preset angle along the second rotation direction so that the extension direction of the latching part 3212 is parallel to the extension direction of the lock hole. Then, the latching part 3212 moves away from the mounting bracket 400 along the first direction and passes through the lock hole. At this time, the latching part 3212 disengages from the mounting bracket 400. The preset angle is α, which satisfies: 0° < α < 180°.

[0185] By adopting the above technical solution, during the rotation of the adjusting member 322 along the first rotation direction or the second rotation direction, the connecting part 3211 can not only follow the adjusting member 322 to rotate along the first rotation direction or the second rotation direction, but also move along the first direction to drive the locking part 3212 to rotate along the first rotation direction or the second rotation direction and move along the first direction, thereby realizing the locking part 3212 to lock or disengage from the mounting bracket 400. The structure is simple and easy to operate.

[0186] Please refer to some embodiments of this application as well. Figure 9 and Figure 10 The support member 31 is provided with a first limiting part 3121, and the connecting part 3211 is provided with a second limiting part 3213. The first limiting part 3121 and the second limiting part 3213 cooperate to guide the locking member 321 to move along the first direction and limit the rotation angle of the locking member 321.

[0187] The first limiting part 3121 and the second limiting part 3213 cooperate to limit the rotation angle of the connecting part 3211 relative to the support member 31. The structures of the first limiting part 3121 and the second limiting part 3213 can be various. For example, the first limiting part 3121 can be a limiting groove provided in the support member 31, and correspondingly, the second limiting part 3213 can be a protrusion on the outer peripheral surface of the connecting part 3211, which is inserted into the limiting groove to cooperate in realizing the rotation angle of the connecting part 3211. Of course, both the first limiting part 3121 and the second limiting part 3213 can be protruding. The first limiting part 3121 protrudes from one end of the support member 31 in the first direction, and the second limiting part 3213 protrudes from the outer peripheral surface of the connecting part 3211. When the connecting part 3211 rotates relative to the support member 31, the second limiting part 3213 can abut against the first limiting part 3121, so as to limit the rotation angle of the connecting part 3211 through the mutual cooperation of the first limiting part 3121 and the second limiting part 3213. The number of the first limiting part 3121 and the second limiting part 3213 can be one or more. For example, in the embodiment of this application, there are two first limiting parts 3121, and correspondingly, there are also two second limiting parts 3213, with the two second limiting parts 3213 protruding from opposite sides of the connecting part 3211.

[0188] By adopting the above technical solution, the first limiting part 3121 and the second limiting part 3213 can cooperate to limit the rotation angle of the locking member 321, so that under the cooperation and limitation of the first limiting part 3121 and the second limiting part 3213, the locking part 3212 can be driven to engage or disengage with the mounting bracket 400, thereby facilitating the switching of the locking member 321 between the locked state and the unlocked state. The structure is simple and easy to operate.

[0189] Please refer to some embodiments of this application as well. Figure 9 and Figure 10 The first limiting part 3121 is a limiting groove recessed in the support member 31, and the second limiting part 3213 is a protrusion protruding on the outer peripheral surface of the connecting part 3211, and the protrusion is accommodated in the limiting groove.

[0190] The first limiting part 3121 is a limiting groove, and the second limiting part 3213 is a protrusion. By inserting the protrusion into the limiting groove, the movement trajectory of the protrusion will be limited and guided by the limiting groove, so that the connecting part 3211 can limit the rotation angle and move along the first direction under the cooperation of the first limiting part 3121 and the second limiting part 3213.

[0191] In some embodiments, the support member 31 includes a sleeve 311 and a guide sleeve 312. One end of the sleeve 311 forms a fixing part 3111, and the other end of the sleeve 311 forms a support top 3112. The adjusting member 322 and the guide sleeve 312 are both disposed inside the sleeve 311. The guide sleeve 312 is sleeved on the connecting part 3211. The inner wall of the guide sleeve 312 is recessed with a limiting groove, and the protrusion is accommodated in the limiting groove. As an example, in order to reduce the wear of the guide sleeve 312, the sleeve 311 and the guide sleeve 312 can be made of different materials so that the rigidity of the guide sleeve 312 is greater than that of the sleeve 311. For example, the sleeve 311 is made of aluminum alloy, and the guide sleeve 312 is made of steel.

[0192] By adopting the above technical solution, the protrusion can limit the rotation angle of the connecting part 3211 under the restriction of the limiting groove, and the protrusion can guide the connecting part 3211 to move relative to the support member 31 in the first direction while rotating relative to the support member 31. The structure is simple, easy to implement, and has high stability.

[0193] In some embodiments of this application, please refer to Figure 10 The limiting groove includes a first groove segment 31211, a second groove segment 31212, and a third groove segment 31213 arranged sequentially along a first direction. The first groove segment 31211 and the third groove segment 31213 both extend along the first direction and are separated along a first rotation direction or a second rotation direction. The second groove segment 31212 is connected between the first groove segment 31211 and the second groove segment 31212. When the snap-fit ​​part 3212 is snapped into the mounting bracket 400, the protrusion is located in the third groove segment 31213. When the snap-fit ​​part 3212 is disengaged from the mounting bracket 400, the protrusion is located in the first groove segment 31211.

[0194] The first groove segment 31211 and the third groove segment 31213 are separated along either the first or second rotation direction, and are also separated along the first direction. That is, the first groove segment 31211 and the third groove segment 31213 of the limiting groove are separated in the first direction, and also in either the first or second rotation direction. The second groove segment 31212 is a spiral structure surrounding the connecting portion 3211, such that when the protrusion is located within the first groove segment 31211 and the third groove segment 31213, the connecting portion 3211 can only move along the first direction under the action of the adjusting member 322. However, when the protrusion is located within the second groove segment 31212, the connecting portion 3211 can move along the first direction and rotate along either the first or second rotation direction under the action of the adjusting member 322.

[0195] By adopting the above technical solution, when the protrusion is located in the first groove segment 31211 and the third groove segment 31213, it can only move along the first direction following the extension direction of the first groove segment 31211 and the third groove segment 31213. When the protrusion is located in the second groove segment 31212, it can both rotate relative to the support member 31 and move relative to the support member 31 along the first direction following the extension direction of the second groove segment 31212. This achieves the limitation of the rotation angle of the locking member 321 and its ability to move along the first direction.

[0196] Please refer to some embodiments of this application as well. Figures 7 to 9 The connecting part 3211 is threadedly connected to the adjusting part 322.

[0197] In some embodiments, the end of the connecting part 3211 away from the snap-fit ​​part 3212 is provided with an external thread, and the interior of the adjusting member 322 is provided with an internal thread. The external thread of the connecting part 3211 and the internal thread of the adjusting member 322 both extend spirally in the first direction and are threadedly engaged with each other to thread the connecting part 3211 and the adjusting member 322. When the adjusting member 322 is rotated in the first rotation direction, the connecting part 3211 will rotate with the adjusting member 322 in the first rotation direction under the action of friction between the external thread and the internal thread. At the same time, the connecting part 3211 will also move along the internal thread towards the mounting bracket 400 so that the locking part 3212 is locked with the mounting bracket 400. When the adjusting member 322 is rotated in the second rotation direction, the connecting part 3211 will rotate with the adjusting member 322 in the second rotation direction under the action of friction between the external thread and the internal thread. At the same time, the connecting part 3211 will also move along the internal thread away from the mounting bracket 400 so that the locking part 3212 is disengaged from the mounting bracket 400.

[0198] By adopting the above technical solution, the adjusting member 322 can not only drive the locking member 321 to rotate, but also drive the locking member 321 to move along the first direction. The structure is simple and easy to implement, and it forms a self-locking structure between the locking member 321 and the adjusting member 322, so as to reduce the risk of the locking member 321 sliding relative to the adjusting member 322 along the first direction, which is conducive to improving the reliability of the locking assembly 32 and the mounting bracket 400 locking each other.

[0199] Secondly, embodiments of this application also provide an energy storage device 1, including the battery device 100 described in any of the above embodiments, the battery device 100 being used to store or provide electrical energy.

[0200] The energy storage device 1 provided in this application embodiment effectively improves the reliability of the energy storage device 1 by adopting the battery device 100 described in any of the above embodiments.

[0201] Thirdly, please refer to Figure 1 This application also provides an energy storage system, including a power conversion device and the aforementioned energy storage device 1, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device 1.

[0202] The energy storage system provided in this application embodiment effectively improves the reliability of the energy storage system by employing the energy storage device 1 described in any of the above embodiments.

[0203] Fourthly, please refer to Figure 3 This application also provides an electrical device, including the battery device 100, the energy storage device 1, or the energy storage system described in any of the above embodiments, wherein the battery device 100 is used to store or provide electrical energy.

[0204] The electrical equipment provided in this application embodiment effectively improves the reliability of the electrical equipment by employing the battery device 100, the energy storage device 1, or the energy storage system described in any of the above embodiments.

[0205] Fifthly, please refer to Figure 2 This application embodiment also provides a charging network, including a charging pile 4 and the above-described energy storage device 1 or an energy storage system as described above, wherein the energy storage device 1 is used to provide electrical energy to the charging pile 4.

[0206] The charging network provided in this application embodiment effectively improves the reliability of the charging network by using the above-described energy storage device 1 or energy storage system.

[0207] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery device, characterized in that, The battery device includes: Battery cell; A battery box includes a box body and a mounting beam, the box body being used to house the individual battery cells, and the mounting beam being connected to the box body; A quick-change locking mechanism includes a locking assembly and a support member. The locking assembly is mounted on the support member and is used to engage or disengage with the mounting bracket along a first direction. The support member includes a fixing part and a support top. The fixing part is connected to the mounting beam. The support top is used to cooperate with the locking assembly along the first direction to clamp the mounting beam and the mounting bracket when the locking assembly is engaged with the mounting bracket. Wherein, the fixing part is clearance-fitted with the mounting beam along the first direction and the top of the support abuts against the mounting beam along the first direction, or the top of the support is clearance-fitted with the mounting beam along the first direction and the fixing part abuts against the mounting beam along the first direction.

2. The battery device according to claim 1, characterized in that, The mounting beam includes a first beam and a second beam, which are separated along the first direction. The fixing part is connected to the first beam. The support top is used to cooperate with the locking assembly along the first direction to clamp the second beam and the mounting bracket when the locking assembly is engaged with the mounting bracket. The fixing part is in clearance fit with the first beam and the support top abuts against the second beam, or the support top is in clearance fit with the second beam and the fixing part abuts against the first beam.

3. The battery device according to claim 2, characterized in that, The mounting beam further includes a third beam, a first reinforcing structure, and a second reinforcing structure. The first beam, the second beam, and the third beam are separated along the first direction. The first reinforcing structure is connected between the first beam and the third beam, and the second reinforcing structure is connected between the second beam and the third beam.

4. The battery device according to claim 3, characterized in that, The first reinforcing structure includes a plurality of first reinforcing ribs, each of which is connected between the first beam and the third beam and is spaced apart along a second direction; and / or, The second reinforcing structure includes a plurality of second reinforcing ribs, all of which are connected between the second beam and the third beam and are spaced apart along the second direction; The second direction is intersecting with the first direction.

5. The battery device according to claim 3, characterized in that, The number of third beams is multiple, and the multiple third beams are disposed between the first beam and the second beam and are separated along the first direction. The mounting beam also includes a third reinforcing structure, which is connected between two adjacent third beams.

6. The battery device according to claim 5, characterized in that, The third reinforcing structure includes a plurality of third reinforcing ribs, each of which is connected between two adjacent third beams and is separated along a second direction, which intersects with the first direction.

7. The battery device according to any one of claims 1-6, characterized in that, The fixing part and the mounting beam are fitted with a clearance in the first direction. The battery device also includes a gasket disposed between the fixing part and the mounting beam. The fixing part and the mounting beam are fitted together in the first direction to clamp the gasket.

8. The battery device according to any one of claims 1-6, characterized in that, The mounting beam has mounting holes that penetrate two opposite surfaces of the mounting beam along the first direction. The support member is mounted in the mounting holes, and at least a portion of the locking assembly protrudes outside the mounting holes to engage or disengage with the mounting bracket.

9. The battery device according to claim 8, characterized in that, The support member is interference-fitted into the mounting hole.

10. The battery device according to any one of claims 1-6, characterized in that, The battery device also includes a connector for connecting the mounting beam and the fixing part.

11. The battery device according to claim 10, characterized in that, The number of connectors is multiple, and the multiple connectors are arranged separately around the axis of the quick-change locking mechanism.

12. The battery device according to any one of claims 1-6, characterized in that, The locking assembly includes an adjusting member and a locking member. The adjusting member is mounted on the support member and is rotatable relative to the support member, having opposite first and second rotation directions. When the adjusting member rotates along the first rotation direction, it can drive the locking member to gradually approach the mounting bracket along the first direction, so that the locking member engages with the mounting bracket and cooperates with the top of the support to clamp the mounting beam and the mounting bracket. When the adjusting member rotates along the second rotation direction, it can drive the locking member to gradually move away from the mounting bracket along the first direction, so that the locking member disengages from the mounting bracket.

13. The battery device according to claim 12, characterized in that, The locking member includes a connecting part and a snap-fit ​​part. The connecting part is connected to the adjusting member, and the snap-fit ​​part is connected to the end of the connecting part away from the adjusting member. When the adjusting member rotates along the first rotation direction, it can drive the locking member to gradually approach the mounting bracket along the first direction and rotate along the first rotation direction, so that the snap-fit ​​part snaps into the mounting bracket and cooperates with the top of the support to clamp the mounting beam and the mounting bracket. When the adjusting member rotates along the second rotation direction, it can drive the locking member to gradually move away from the mounting bracket along the first direction and rotate along the second rotation direction, so that the snap-fit ​​part disengages from the mounting bracket.

14. The battery device according to claim 13, characterized in that, The support member is provided with a first limiting part, and the connecting part is provided with a second limiting part. The first limiting part and the second limiting part cooperate to guide the locking member to move along the first direction and limit the rotation angle of the locking member.

15. The battery device according to claim 14, characterized in that, The first limiting part is a limiting groove recessed in the support member, and the second limiting part is a protrusion protruding on the outer peripheral surface of the connecting part, the protrusion being accommodated in the limiting groove.

16. The battery device according to claim 15, characterized in that, The limiting groove includes a first groove segment, a second groove segment, and a third groove segment arranged sequentially along the first direction. The first groove segment and the third groove segment both extend along the first direction and are separated along the first rotation direction or the second rotation direction. The second groove segment connects the first groove segment and the second groove segment. When the snap-fit ​​part is snapped with the mounting bracket, the protrusion is located in the third groove segment. When the snap-fit ​​part is disengaged from the mounting bracket, the protrusion is located in the first groove segment.

17. The battery device according to claim 13, characterized in that, The connecting part is threadedly connected to the adjusting member.

18. An energy storage device, characterized in that, Includes a battery device as described in any one of claims 1-17, the battery device being used to store or provide electrical energy.

19. An energy storage system, characterized in that, It includes a power conversion device and an energy storage device as described in claim 18, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

20. An electrical device, characterized in that, Includes a battery device as described in any one of claims 1-17, an energy storage device as described in claim 18, or an energy storage system as described in claim 19, wherein the battery device is used to store or provide electrical energy.

21. A charging network, characterized in that, It includes a charging pile and an energy storage device as described in claim 18 or an energy storage system as described in claim 19, wherein the energy storage device is used to provide electrical energy to the charging pile.

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