Energy storage device, energy storage system, and electric device

Abstract

The embodiment of the present application relates to the technical field of energy storage, and provides an energy storage device, an energy storage system and an electric equipment. Wherein, the top plate and the bottom plate of the shell of the energy storage device are oppositely arranged at the two sides of the side plate and enclose the mounting cavity, the top plate is detachably connected with the side plate; the support main body of the support member is mounted on the bottom plate and extends along the direction from the bottom plate to the top plate, the first connecting part is bently arranged with the support main body and protrudes from the side of the support main body; the mounting main body of the mounting member extends along the direction from the bottom plate to the top plate, the second connecting part is bently arranged with the mounting main body and protrudes from the side of the mounting main body, the second connecting part is at least partially abuttingly arranged with the first connecting part; the first locking member is used for locking and connecting the first connecting part and the second connecting part, and the battery management unit is mounted on the mounting main body. The energy storage device provided by the embodiment of the present application is at least beneficial to improving the disassembly and assembly convenience of the battery management unit for the worker.

Description

Technical Field

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

[0002] Currently, in existing energy storage devices, the battery management unit (BMU) is used to detect and manage parameters such as voltage, current, and temperature of the battery pack to ensure safe and efficient battery operation. In existing energy storage devices, the BMU is typically mounted on a mounting bracket, and its installation and removal are achieved by assembling and disassembling the bracket.

[0003] However, in the prior art, the parts for disassembling and assembling the mounting components are often located inside the outer casing of the energy storage device. Furthermore, due to the compact internal structure of the energy storage device, there is often no lateral space for disassembling and assembling the mounting and assembling parts, which makes it inconvenient to disassemble and assemble the battery management unit. Summary of the Invention

[0004] This application provides an energy storage device, an energy storage system, and an electrical appliance to solve the technical problem in the prior art that it is inconvenient to disassemble and assemble the battery management unit.

[0005] According to some embodiments of this application, one aspect of this application provides an energy storage device, including: a housing, including a bottom plate, a top plate, and a side plate, the top plate and the bottom plate being disposed opposite each other on both sides of the side plate and forming a mounting cavity, the top plate being detachably connected to the side plate; a support member, including a support body and a first connecting portion connected to each other, the support body being mounted on the bottom plate and extending in the direction from the bottom plate to the top plate, the first connecting portion being bent and protruding from the side of the support body; a mounting member, including a mounting body and a second connecting portion connected to each other, the mounting body extending in the direction from the bottom plate to the top plate, the second connecting portion being bent and protruding from the side of the mounting body, the second connecting portion being at least partially fitted with the first connecting portion; a first locking member and a battery management unit, the first locking member locking the first connecting portion and the second connecting portion, the battery management unit being mounted on the mounting body.

[0006] In some embodiments, the side of the side plate near the top plate forms a mounting opening, the top plate is detachably mounted at the mounting opening, and a second connecting portion is disposed opposite to the mounting opening; and / or, the energy storage device further includes a battery pack, the battery pack is mounted inside the housing, and a first connecting portion protrudes from the side of the support body away from the battery pack.

[0007] In some embodiments, the first connecting portion is provided with a first snap-fit ​​portion, and the second connecting portion is provided with a second snap-fit ​​portion that snaps into the first snap-fit ​​portion; wherein, one of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​protrusion, and the other of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​recess.

[0008] In some embodiments, the end of the first connecting portion away from the support body is folded up and provided with a first snap-fit ​​plate, and the end of the second connecting portion away from the mounting body is provided with a first snap-fit ​​opening that snaps into the first snap-fit ​​plate; or, the end of the first connecting portion away from the support body is provided with a second snap-fit ​​opening, and the end of the second connecting portion away from the mounting body is provided with a second snap-fit ​​plate that snaps into the second snap-fit ​​opening.

[0009] In some embodiments, the first locking member is provided with a threaded section, the second connecting portion is provided with a connecting through hole, and the first connecting portion is provided with a threaded hole. The first locking member passes through the connecting through hole and is locked in place with the threaded hole; and / or, there are multiple first locking members, which are spaced apart along the length direction of the second connecting portion; and / or, the first locking member is spaced apart from the mounting body, and the gap between the first locking member and the mounting body is greater than the thickness of the battery management unit.

[0010] In some embodiments, the mounting body includes a first mounting plate, a connecting plate, and a second mounting plate connected in sequence, with the first mounting plate and the second mounting plate facing each other and spaced apart to form a mounting gap; wherein a battery management unit is mounted on the side of the first mounting plate away from the second mounting plate, and the energy storage device further includes a second locking member, a first through hole is provided on the first mounting plate, a portion of the second locking member passing through the battery management unit is locked and connected to the first through hole, and at least a portion of the second locking member is used to extend into the mounting gap and abut against the second mounting plate; and / or, a battery management unit is mounted on the side of the second mounting plate away from the first mounting plate, and the energy storage device further includes a third locking member, a second through hole is provided on the second mounting plate, the third locking member passes through the battery management unit and is locked and connected to the second through hole, and at least a portion of the third locking member is used to extend into the mounting gap and abut against the first mounting plate.

[0011] In some embodiments, the mounting component is a one-piece molded structure; or, the connecting plate is welded to at least one of the first mounting plate and the second mounting plate.

[0012] In some embodiments, the energy storage device further includes a battery pack installed inside a housing; the support body is a bent plate that protrudes toward the side away from the battery pack, so that the side of the bent plate closest to the battery pack forms a bending space.

[0013] In some embodiments, the first connecting portion is disposed perpendicular to the support body; and / or, the second connecting portion is disposed perpendicular to the mounting body.

[0014] In some embodiments, the energy storage device further includes: a spring, the two ends of which are respectively connected to a first connecting portion and a second connecting portion; or, a telescopic rod, the telescopic end of which is telescopically disposed relative to the fixed end of the telescopic rod, one of the telescopic end and the fixed end being connected to the first connecting portion, and the other of the telescopic end and the fixed end being connected to the second connecting portion.

[0015] Another embodiment of this application provides an energy storage system, including a control module, a management module, and the aforementioned energy storage device. The control module is electrically connected to the energy storage device to monitor the charging and discharging of the energy storage device, and the management module is connected to the energy storage device to collect and analyze the data of the energy storage device.

[0016] Another embodiment of this application provides an electrical device, including the above-described energy storage device, power conversion module, user interface, and control unit. The power conversion module is connected to the energy storage device to adjust the output power of the energy storage device. The user interface provides information about the energy storage device to the user. The control unit is used to coordinate the power conversion module and the user interface.

[0017] The technical solution provided in this application has at least the following advantages:

[0018] Since both the support body and the mounting body extend along the direction from the bottom plate to the top plate, the first connecting part and the second connecting part protrude from the sides of the support body and the mounting body, respectively, so that there is a certain space between the support body, the mounting body and the side plate. After the first locking member locks the fitted first connecting part and the second connecting part, it is located in this space. When the staff needs to disassemble or assemble the battery management unit of the energy storage device, the staff can open the top plate, remove the first locking member through the space, and take out the mounting body and the battery management unit from the mounting cavity along the direction from the bottom plate to the top plate. This avoids the phenomenon that the staff find it inconvenient to disassemble or assemble the battery management unit due to the compact structure inside the mounting cavity, ensuring the convenience of the staff to disassemble or assemble the battery management unit, improving the staff's disassembly and assembly efficiency and work efficiency, and thus solving the technical problem of the inconvenience of disassembling and assembling the battery management unit in the prior art. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Unless otherwise stated, the drawings in the accompanying drawings do not constitute a limitation on scale. In order to more clearly illustrate the technical solutions in the embodiments of this application or in the conventional art, the drawings used in the embodiments 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.

[0020] Figure 1 An overall structural diagram of an embodiment of the energy storage device according to the present invention is shown;

[0021] Figure 2 It shows Figure 1 A partial three-dimensional view of the energy storage device;

[0022] Figure 3 It shows Figure 2 Exploded view of part of the structure;

[0023] Figure 4 It shows Figure 1 A schematic diagram showing the locking connection status of the support components and mounting components of the energy storage device.

[0024] Figure 5 It shows Figure 1 A schematic diagram showing the disassembled state of the support and mounting components of the energy storage device.

[0025] The above figures include the following reference numerals:

[0026] 10. Outer shell; 11. Bottom plate; 12. Top plate; 13. Side plates;

[0027] 20. Support component; 21. Support body; 22. First connecting part;

[0028] 30. Mounting component; 31. Mounting body; 311. First mounting plate; 312. Connecting plate; 313. Second mounting plate; 32. Second connecting part;

[0029] 40. First locking element;

[0030] 51. Snap-fit ​​protrusion; 52. Snap-fit ​​recess;

[0031] 60. Spring;

[0032] 70. Battery pack;

[0033] 80. Battery Management Unit. Detailed Implementation

[0034] As can be seen from the background technology, it is currently inconvenient for staff to disassemble and assemble the battery management unit.

[0035] To improve the ease of installation and removal of the battery management unit by staff, embodiments of this application provide an energy storage device, an energy storage system, and an electrical appliance.

[0036] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0039] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0040] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended 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 the embodiments of this application.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0042] In the accompanying drawings corresponding to the embodiments of this application, the thickness and area of ​​the layers are enlarged for better understanding and ease of description. When describing a component (such as a layer, film, region, or substrate) on or on the surface of another component, the component may be "directly" located on the surface of the other component, or there may be a third component between the two components. Conversely, when describing a component on the surface of another component, or when another component is formed or disposed on the surface of a component, it indicates that there is no third component between the two components. Furthermore, when describing a component as being "generally" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a portion of the edge of the entire surface.

[0043] In the description of the embodiments of this application, when a component "includes" another component, other components are not excluded unless otherwise stated, and other components may be further included. Furthermore, when a component such as a layer, film, region, or plate is referred to as being "on / located" on another component, it can be "directly on" the other component (i.e., located on the surface of the other component with no other components between them), or another component may be present therein. Moreover, when a component such as a layer, film, region, or plate is "directly located" on another component, or when a component such as a layer, film, region, or plate is located on the surface of another component, it indicates that no other components are located therein.

[0044] The terminology used in the description of the various embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various embodiments and the appended claims, the term "part" is also intended to include the plural form unless the context clearly indicates otherwise. Components include layers, films, regions, or plates, etc.

[0045] The embodiments of this application will now be described in detail with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0046] This application provides an energy storage device, an energy storage system, and an electrical appliance, which at least improves the ease of installation and removal of the battery management unit 80 for staff.

[0047] like Figures 1 to 5As shown, the energy storage device includes a housing 10, a support member 20, a mounting member 30, a first locking member 40, and a battery management unit 80. The housing 10 includes a bottom plate 11, a top plate 12, and a side plate 13. The top plate 12 and the bottom plate 11 are disposed opposite each other on both sides of the side plate 13, forming a mounting cavity. The top plate 12 is detachably connected to the side plate 13. The support member 20 includes a support body 21 and a first connecting portion 22 connected to each other. The support body 21 is mounted on the bottom plate 11 and extends along the direction from the bottom plate 11 to the top plate 12. The first connecting portion 22 is bent into the support body 21 and protrudes from the side of the support body 21. The mounting member 30 includes a mounting body 31 and a second connecting portion 32 connected to each other. The mounting body 31 extends along the direction from the bottom plate 11 to the top plate 12. The second connecting portion 32 is bent into the mounting body 31 and protrudes from the side of the mounting body 31. At least a portion of the second connecting portion 32 is in contact with the first connecting portion 22. The first locking member 40 locks the first connecting part 22 and the second connecting part 32 together, and the battery management unit 80 is installed on the mounting body 31.

[0048] By applying the technical solution of this embodiment, since both the supporting body 21 and the mounting body 31 extend along the direction from the bottom plate 11 to the top plate 12, and the first connecting part 22 and the second connecting part 32 protrude from the sides of the supporting body 21 and the mounting body 31 respectively, there is a certain space between the supporting body 21, the mounting body 31 and the side plate 13. After the first locking member 40 locks the fitted first connecting part 22 and the second connecting part 32, it is located in this space. When the staff needs to disassemble or assemble the battery management unit 80 of the energy storage device, the staff can open the top plate 12, remove the first locking member 40 through the space, and take out the mounting body 31 and the battery management unit 80 from the mounting cavity along the direction from the bottom plate 11 to the top plate 12. This avoids the inconvenience of disassembling or assembling the battery management unit 80 due to the compact structure inside the mounting cavity, ensuring the convenience of disassembling or assembling the battery management unit 80, improving the disassembly and assembly efficiency and work efficiency of the staff, and thus solving the technical problem of inconvenience in disassembling or assembling the battery management unit 80 in the prior art.

[0049] Specifically, with the above-described structural configuration, after opening the top plate 12, there is sufficient operating space extending along the direction from the bottom plate 11 to the top plate 12. This operating space can be understood as a longitudinal operating space. Furthermore, due to the positioning of the first connecting part 22 and the second connecting part 32, the space required for operating the first locking member 40 is also a longitudinal operating space. Thus, after opening the top plate, it is only necessary to insert the corresponding operating tool into the longitudinal operating space to tighten or loosen the first locking member 40. Compared to the generally horizontal arrangement and disassembly operation of locking members in the prior art, even after removing the top plate and inserting the operating tool into the housing, some disassembly work is often still required along the lateral direction, thus requiring a certain lateral operating space (the lateral direction of the lateral operating space is perpendicular to the extension direction from the bottom plate to the top plate). Generally, the internal structure of the battery pack 70 is compact, which often makes the disassembly and assembly of the support and mounting components difficult and inconvenient to operate.

[0050] In this embodiment, the first connecting portion 22 has a first contact surface facing the second connecting portion 32, and the second connecting portion 32 has a second contact surface facing the first connecting portion 22. The first contact surface and the second contact surface are fitted together. This tight fit between the first and second contact surfaces forms a stable connection interface, increasing the connection area between the first connecting portion 22 and the second connecting portion 32. When the first locking member 40 is locked, the large surface contact greatly restricts the relative displacement between the first connecting portion 22 and the second connecting portion 32, improving the connection stability between them. Simultaneously, the tight fit between the first and second contact surfaces disperses the locking force of the first locking member 40, effectively avoiding stress concentration. This allows the connection structure to better withstand loads from vibration, impact, or the weight of the equipment itself, significantly improving the structural strength of the support and mounting components.

[0051] In this embodiment, the side of the side plate 13 near the top plate 12 forms a mounting opening, and the top plate 12 is detachably mounted at the mounting opening. The second connecting part 32 is disposed opposite to the mounting opening. Alternatively, the energy storage device also includes a battery pack 70, which is installed inside the housing 10. The first connecting part 22 protrudes from the side of the supporting body 21 away from the battery pack 70. Thus, because the second connecting part 32 is disposed opposite to the mounting opening, when the operator removes the top plate 12 to disassemble the battery management unit 80, the second connecting part 32 and the first locking member 40 are directly visible. This facilitates direct disassembly of the first locking member 40, reduces the steps required to locate it, simplifies the operation process, improves the ease of disassembly, and increases the work efficiency of the operator. Meanwhile, the first connecting part 22 is positioned on the side of the supporting body 21 away from the battery pack 70, which separates the first connecting part 22 from the battery pack 70 on both sides of the supporting body 21. This not only ensures that the staff can easily install and remove the first locking part 40, but also optimizes the structural layout of the battery pack 70 and the first connecting part 22, ensuring the structural compactness of the energy storage device, and avoids interference with the battery pack 70, ensuring the operational safety of the battery pack 70, and thus ensuring the operational safety of the energy storage device.

[0052] like Figure 4 and Figure 5 As shown, the first connecting part 22 is provided with a first snap-fit ​​part, and the second connecting part 32 is provided with a second snap-fit ​​part that engages with the first snap-fit ​​part. One of the first and second snap-fit ​​parts is a snap-fit ​​protrusion 51, and the other is a snap-fit ​​recess 52. This arrangement of the first and second snap-fit ​​parts allows for preliminary positioning and connection between the first connecting part 22 and the second connecting part 32 before the first locking member 40 is fully engaged, reducing the time required for workers to observe alignment, improving the connection efficiency of the first and second connecting parts 22, and ultimately increasing the installation efficiency of the workers. Meanwhile, the physical constraint of the interlocking protrusion 51 and the interlocking recess 52 forms a self-guiding "foolproof" positioning mechanism, which enables the first connecting part 22 and the second connecting part 32 to automatically and accurately align before locking. This transforms the uncertainty of human alignment into the certainty of mechanical fit, ensuring the accuracy of the relative position of the first connecting part 22 and the second connecting part 32 in three-dimensional space. This effectively avoids misalignment and deviation during installation, greatly improving the alignment accuracy and installation efficiency of the workers.

[0053] In this embodiment, there are multiple first latching portions, which are spaced apart along the length of the first connecting portion 22. Similarly, there are multiple second latching portions, which are spaced apart along the length of the second connecting portion 32. This arrangement of multiple first and second latching portions balances the latching force between the first connecting portion 22 and the second connecting portion 32, ensuring the connection stability between the first connecting portion 22 and the second connecting portion 32.

[0054] like Figure 4 and Figure 5 As shown, the end of the first connecting part 22 furthest from the supporting body 21 is folded down and equipped with a first snap-fit ​​plate, and the end of the second connecting part 32 furthest from the mounting body 31 is equipped with a first snap-fit ​​opening that snaps into the first snap-fit ​​plate; or, the end of the first connecting part 22 furthest from the supporting body 21 is equipped with a second snap-fit ​​opening, and the end of the second connecting part 32 furthest from the mounting body 31 is equipped with a second snap-fit ​​plate that snaps into the second snap-fit ​​opening. This arrangement of the first snap-fit ​​plate and the first snap-fit ​​opening allows the operator to slide the first snap-fit ​​plate through the first snap-fit ​​opening to achieve the snap-fit ​​engagement between the first connecting part 22 and the second connecting part 32, reducing the steps required for alignment, lowering the operational difficulty, and improving the ease of assembly and disassembly and work efficiency. At the same time, this arrangement simplifies the formation of the first snap-fit ​​plate and the first snap-fit ​​opening, avoiding the use of additional components and ensuring a lightweight design for the energy storage device.

[0055] In some embodiments, the first locking member 40 is provided with a threaded section, the second connecting portion 32 is provided with a connecting through hole, and the first connecting portion 22 is provided with a threaded hole. The first locking member 40 passes through the connecting through hole and is locked in place with the threaded hole; and / or, there are multiple first locking members 40, which are spaced apart along the length of the second connecting portion 32; and / or, the first locking members 40 are spaced apart from the mounting body 31, and the gap between the first locking member 40 and the mounting body 31 is greater than the thickness of the battery management unit 80. This threaded connection between the first locking member 40 and the threaded hole ensures the stability of the connection between the first connecting portion 22 and the second connecting portion 32, preventing separation of the first connecting portion 22 and the second connecting portion 32 due to external impact or vibration, and ensuring the stability of the connection and structure of the support member 20 and the mounting member 30. Meanwhile, the arrangement of multiple first locking members 40, on the one hand, expands the locking area between the first connecting part 22 and the second connecting part 32, enhances the locking force between the first connecting part 22 and the second connecting part 32, and improves the connection stability and structural stability of the support member 20 and the mounting member 30; on the other hand, it can balance the locking stress of the first locking member 40 on the first connecting part 22 and the second connecting part 32, avoid stress concentration, and extend the service life of the first connecting part 22 and the second connecting part 32. Furthermore, the arrangement of the gap between the first locking member 40 and the mounting body 31 being greater than the thickness of the battery management unit 80 ensures smooth assembly and disassembly of the battery management unit 80, avoids squeezing and collision of the first locking member 40 on the battery management unit 80, and ensures the structural safety of the battery management unit 80.

[0056] In this embodiment, three first locking members 40 are provided.

[0057] It should be noted that the number of first locking components 40 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of first locking components 40 can be two, five, six, eight, or more.

[0058] In this embodiment, the first locking member 40 is a bolt, and the extension direction of the first locking member 40 is consistent with the extension direction of the mounting body 31, or the extension direction of the first locking member 40 is consistent with the extension direction of the supporting body 21.

[0059] Specifically, the first locking member 40 extends through the first connecting portion 22 and the second connecting portion 32 along its own extension direction to lock the first connecting portion 22 and the second connecting portion 32 together. In this way, when the operator disassembles or assembles the battery management unit 80, they only need to insert a tool into the mounting cavity and turn the first locking member 40 to disassemble the first locking member 40, which improves the convenience and efficiency of the operator.

[0060] like Figure 4 and Figure 5 As shown, the mounting body 31 includes a first mounting plate 311, a connecting plate 312, and a second mounting plate 313 connected in sequence. The first mounting plate 311 and the second mounting plate 313 are opposite to each other and spaced apart to form a mounting gap. A battery management unit 80 is mounted on the side of the first mounting plate 311 away from the second mounting plate 313. The energy storage device also includes a second locking member. The first mounting plate 311 has a first through hole. The portion of the second locking member passing through the battery management unit 80 is locked to the first through hole. At least a portion of the second locking member is used to extend into the mounting gap and abut against the second mounting plate 313. Alternatively, the battery management unit 80 is mounted on the side of the second mounting plate 313 away from the first mounting plate 311. The energy storage device also includes a third locking member. The second mounting plate 313 has a second through hole. The third locking member passes through the battery management unit 80 and is locked to the second through hole. At least a portion of the third locking member is used to extend into the mounting gap and abut against the first mounting plate 311. In this way, the battery management unit 80 is connected to the mounting body 31 via the second or third locking member, ensuring the installation reliability of the battery management unit 80. Simultaneously, the arrangement of the second locking member abutting against the second mounting plate 313 or the third locking member abutting against the first mounting plate 311 ensures the structural strength of the mounting body 31, achieving reliable locking between the battery management unit 80 and the mounting body 31, and guaranteeing the installation stability of the battery management unit 80. Furthermore, the above arrangement allows for more flexible and diverse installation positions of the battery management unit 80 to adapt to different layout requirements, improving the versatility of the energy storage device. At the same time, the connection method of the first mounting plate 311, the connecting plate 312, and the second mounting plate 313 optimizes the space occupied by the mounting body 31, ensuring the structural compactness of the mounting body 31 and improving the structural compactness of the energy storage device.

[0061] In some embodiments, the mounting component 30 is a one-piece molded structure; or, the connecting plate 312 is welded to at least one of the first mounting plate 311 and the second mounting plate 313. In this way, the above arrangement achieves structural installability and consistency of the mounting component 30, reduces the number of assembly steps, ensures the structural stability of the mounting component 30, and also improves the processing efficiency of workers.

[0062] In some embodiments, the energy storage device further includes a battery pack 70, which is installed within the housing 10. The support body 21 is a bent plate that protrudes towards the side away from the battery pack 70, so that the side of the bent plate closest to the battery pack 70 forms a bending space. This bending space formed by the protrusion of the bent plate away from the battery pack 70 can be used to accommodate other components. The bent plate can separate other components from the battery pack 70, ensuring the operational independence and safety of the battery pack 70 and other components. It also optimizes the structural space inside the housing 10, further improving the structural compactness of the energy storage device.

[0063] like Figure 4 and Figure 5 As shown, the first connecting part 22 is perpendicular to the supporting body 21; and / or, the second connecting part 32 is perpendicular to the mounting body 31. This arrangement ensures, on the one hand, the tight fit between the first connecting part 22 and the second connecting part 32, guaranteeing the ease of locking the first locking member 40 and further improving the ease of disassembly and assembly for workers; on the other hand, it provides support for the first locking member 40 during disassembly, preventing it from falling off, ensuring smooth disassembly and assembly for workers, and improving their efficiency.

[0064] In this embodiment, the first locking member 40 is perpendicular to both the first connecting part 22 and the second connecting part 32.

[0065] like Figure 4 and Figure 5 As shown, the energy storage device also includes a spring 60, with both ends of the spring 60 connected to the first connecting part 22 and the second connecting part 32, respectively; or, the energy storage device also includes a telescopic rod, with the telescopic end of the telescopic rod retractably disposed relative to the fixed end of the telescopic rod, one of the telescopic end and the fixed end connected to the first connecting part 22, and the other of the telescopic end and the fixed end connected to the second connecting part 32. In this way, the above arrangement ensures that during the disassembly and assembly of the battery management unit 80, the support member 20 and the mounting member 30 remain partially connected via the spring 60 or the telescopic rod, preventing the safe separation of the support member 20 and the mounting member 30. This not only reduces the number of lost parts but also assists workers in quickly locating the correct position for installation, further improving the efficiency of disassembly and assembly. Simultaneously, the spring 60 and the telescopic rod can absorb external vibrations and impacts, reducing damage to the support member 20 and the mounting member 30 and extending their service life.

[0066] Another embodiment of this application provides an energy storage system, including a control module, a management module, and the aforementioned energy storage device. The control module is electrically connected to the energy storage device to monitor the charging and discharging of the energy storage device, and the management module is connected to the energy storage device to collect and analyze the data of the energy storage device.

[0067] Another embodiment of this application provides an electrical device, including the above-described energy storage device, power conversion module, user interface, and control unit. The power conversion module is connected to the energy storage device to adjust the output power of the energy storage device. The user interface provides information about the energy storage device to the user. The control unit is used to coordinate the power conversion module and the user interface.

[0068] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0069] The energy storage device's outer casing includes a bottom plate, a top plate, and side plates. The top plate and bottom plate are positioned opposite each other on either side of the side plates, forming a mounting cavity. The top plate is detachably connected to the side plates. A support member includes an interconnected support body and a first connecting portion. The support body is mounted on the bottom plate and extends along the direction from the bottom plate to the top plate. The first connecting portion is bent into the support body and protrudes from the side of the support body. A mounting member includes an interconnected mounting body and a second connecting portion. The mounting body extends along the direction from the bottom plate to the top plate. The second connecting portion is bent into the mounting body and protrudes from the side of the mounting body. The second connecting portion is at least partially fitted with the first connecting portion. A first locking member and a battery management unit are also included. The first locking member locks the first connecting portion and the second connecting portion together. The battery management unit is mounted on the mounting body. In this way, since both the supporting body and the mounting body extend along the direction from the bottom plate to the top plate, the first connecting part and the second connecting part protrude from the sides of the supporting body and the mounting body, respectively, so that there is a certain space between the supporting body, the mounting body and the side plate. After the first locking member locks the fitted first connecting part and the second connecting part, it is located in this space. When the staff needs to disassemble or assemble the battery management unit of the energy storage device, the staff can open the top plate, remove the first locking member through the space, and take out the mounting body and the battery management unit from the mounting cavity along the direction from the bottom plate to the top plate. This avoids the phenomenon that the staff find it inconvenient to disassemble or assemble the battery management unit due to the compact structure inside the mounting cavity, ensuring the convenience of the staff to disassemble or assemble the battery management unit, improving the staff's disassembly and assembly efficiency and work efficiency, and thus solving the technical problem of the inconvenience of disassembling and assembling the battery management unit in the prior art.

[0070] Those skilled in the art will understand that the above embodiments are specific examples of implementing this application, and in practical applications, various changes in form and detail can be made without departing from the spirit and scope of this application. Any person skilled in the art can make various alterations and modifications without departing from the spirit and scope of this application; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. An energy storage device, characterized in that, include: The outer casing (10) includes a bottom plate (11), a top plate (12), and a side plate (13). The top plate (12) and the bottom plate (11) are disposed opposite to each other on both sides of the side plate (13) and form a mounting cavity. The top plate (12) is detachably connected to the side plate (13). The support member (20) includes a support body (21) and a first connecting part (22) connected to each other. The support body (21) is mounted on the base plate (11) and extends in the direction from the base plate (11) to the top plate (12). The first connecting part (22) is bent and protrudes from the side of the support body (21). The mounting component (30) includes a mounting body (31) and a second connecting part (32) connected to each other. The mounting body (31) extends along the direction from the bottom plate (11) to the top plate (12). The second connecting part (32) is bent and protrudes from the side of the mounting body (31). The second connecting part (32) is at least partially attached to the first connecting part (22). The first locking member (40) and the battery management unit (80) are connected by locking the first connecting part (22) and the second connecting part (32), and the battery management unit (80) is mounted on the mounting body (31). The mounting body (31) includes a first mounting plate (311), a connecting plate (312), and a second mounting plate (313) connected in sequence. The first mounting plate (311) and the second mounting plate (313) are opposite to each other and spaced apart to form an installation gap. The battery management unit (80) is mounted on the side of the first mounting plate (311) away from the second mounting plate (313). The energy storage device also includes a second locking member. The first mounting plate (311) has a first through hole. The portion of the second locking member passing through the battery management unit (80) is locked to the first through hole. At least a portion of the second locking member is used to extend into the mounting gap and abut against the second mounting plate (313); and / or, The battery management unit (80) is mounted on the side of the second mounting plate (313) away from the first mounting plate (311). The energy storage device also includes a third locking member. The second mounting plate (313) is provided with a second through hole. The third locking member passes through the battery management unit (80) and is locked to the second through hole. At least a portion of the third locking member is used to extend into the mounting gap and abut against the first mounting plate (311).

2. The energy storage device according to claim 1, characterized in that, The side of the side plate (13) near the top plate (12) forms a mounting opening, the top plate (12) is detachably mounted at the mounting opening, and the second connecting part (32) is disposed opposite to the mounting opening; and / or, The energy storage device also includes a battery pack (70), which is installed inside the housing (10), and a first connecting part (22) is provided on the side of the support body (21) away from the battery pack (70).

3. The energy storage device according to claim 1, characterized in that, The first connecting part (22) is provided with a first snap-fit ​​part, and the second connecting part (32) is provided with a second snap-fit ​​part that snaps into the first snap-fit ​​part; Among them, one of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​protrusion (51), and the other of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​recess (52).

4. The energy storage device according to claim 1, characterized in that, The first connecting part (22) has a first snap-fit ​​plate folded over at one end away from the supporting body (21), and the second connecting part (32) has a first snap-fit ​​opening at one end away from the mounting body (31) that engages with the first snap-fit ​​plate; or, The first connecting part (22) is provided with a second snap-fit ​​opening at one end away from the support body (21), and the second connecting part (32) is provided with a second snap-fit ​​plate at one end away from the mounting body (31) that snaps into the second snap-fit ​​opening.

5. The energy storage device according to claim 1, characterized in that, The first locking member (40) is provided with a threaded section, the second connecting part (32) is provided with a connecting through hole, and the first connecting part (22) is provided with a threaded hole. The first locking member (40) passes through the connecting through hole and is locked in place with the threaded hole; and / or, There are multiple first locking members (40), and the multiple first locking members (40) are spaced apart along the length direction of the second connecting portion (32); and / or, The first locking member (40) is spaced apart from the mounting body (31), and the gap between the first locking member (40) and the mounting body (31) is greater than the thickness of the battery management unit (80).

6. The energy storage device according to claim 1, characterized in that, The mounting component (30) is a one-piece molded structure; or, The connecting plate (312) is welded to at least one of the first mounting plate (311) and the second mounting plate (313).

7. The energy storage device according to claim 1, characterized in that, The energy storage device also includes a battery pack (70), which is installed inside the housing (10); the support body (21) is a bent plate, which protrudes to the side away from the battery pack (70) so that the side of the bent plate near the battery pack (70) forms a bending space.

8. The energy storage device according to claim 1, characterized in that, The first connecting portion (22) is perpendicular to the supporting body (21); and / or, The second connecting part (32) is perpendicular to the mounting body (31).

9. The energy storage device according to claim 1, characterized in that, The energy storage device also includes: A spring (60), the two ends of which are respectively connected to the first connecting part (22) and the second connecting part (32); or, The telescopic rod has a telescopic end that is telescopically connected relative to the fixed end of the telescopic rod. One of the telescopic end and the fixed end is connected to the first connecting part (22), and the other of the telescopic end and the fixed end is connected to the second connecting part (32).

10. An energy storage system, characterized in that, The device includes a control module, a management module, and an energy storage device as described in any one of claims 1 to 9. The control module is electrically connected to the energy storage device to monitor the charging and discharging of the energy storage device, and the management module is connected to the energy storage device to collect and analyze the data of the energy storage device.

11. An electrical appliance, characterized in that, The device includes an energy storage device, a power conversion module, a user interface, and a control unit as described in any one of claims 1 to 9. The power conversion module is connected to the energy storage device to adjust the output power of the energy storage device. The user interface provides information about the energy storage device to the user. The control unit is used to coordinate the power conversion module and the user interface.

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