energy storage device

Abstract

The utility model provides a kind of energy storage equipment, comprising: battery box, battery box has installation port and is uniformly provided with clamping groove on the two side walls of battery box close to installation port opposite;Battery module, battery module is detachably installed in battery box by installation port;Pressing plate assembly, including pressing plate and the clamping portion of setting in the opposite two sides of pressing plate;Clamping portion is used to be clamped with clamping groove, to make pressing plate close installation port and exert force to the direction where battery module is located.The energy storage equipment provided by the utility model cooperates clamping portion on pressing plate assembly with clamping groove, realizes the convenient closure and fixing of pressing plate.Not only can effectively close installation port, prevent displacement of battery module in battery box, guarantee its installation stability, but also can ensure that battery module is stressed evenly, enhance the overall connection firmness of battery module and battery box, simultaneously, reduce the time and complexity of traditional screw fixing mode in each screwing screw, significantly reduce maintenance time and cost.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and more specifically, to an energy storage device. Background Technology

[0002] In home energy storage devices, screw fastening is a common mechanical connection method, mainly used to securely install battery modules inside the enclosure. However, as the complexity and scale of energy storage devices increase, the limitations of screw fastening have become increasingly apparent, especially since it requires frequent disassembly and installation of a large number of screws during installation and maintenance, which is time-consuming, labor-intensive, and reduces installation and disassembly efficiency.

[0003] Therefore, how to design an energy storage device that can improve the installation and disassembly efficiency of battery modules and has a reliable fixing method has become an urgent problem to be solved. Utility Model Content

[0004] This invention aims to at least solve the problems of complex installation and low fixing efficiency of battery modules.

[0005] Therefore, the first aspect of this utility model provides an energy storage device.

[0006] In view of this, the first aspect of the present invention provides an energy storage device, comprising: a battery box having an installation opening and snap-fit ​​grooves provided on both side walls of the battery box opposite to the installation opening; a battery module being detachably installed in the battery box through the installation opening; and a pressure plate assembly including a pressure plate and snap-fit ​​portions provided on opposite sides of the pressure plate; the snap-fit ​​portions being used to snap-fit ​​with the snap-fit ​​grooves so that the pressure plate closes the installation opening and applies a force in the direction of the battery module.

[0007] The energy storage device provided by this utility model achieves convenient closure and fixation of the pressure plate by setting snap-fit ​​grooves on the two side walls of the battery box near the mounting port. The snap-fit ​​part on the pressure plate assembly cooperates with the snap-fit ​​grooves. This not only effectively closes the mounting port, preventing displacement of the battery module within the battery box and ensuring its installation stability, but also precisely applies force in the direction of the battery module, ensuring uniform stress on the battery module, enhancing the overall connection between the battery module and the battery box, extending the battery module's service life, reducing the risk of damage to the battery module due to collisions, vibrations, and other factors, and improving the reliability and safety of the energy storage device, providing strong support for the stable operation of the energy storage system. Simultaneously, since the snap-fit ​​pressure plate assembly can quickly position and fix the battery module without tools, it reduces the time and complexity of tightening screws one by one in traditional screw fixing methods. During maintenance, the snap-fit ​​design allows for easy disassembly and reinstallation, significantly reducing maintenance time and costs. Furthermore, the snap-fit ​​clamping assembly, through its mechanical snap-fit ​​mechanism, firmly presses the battery module, ensuring its stability within the enclosure, effectively resisting vibration and impact, and preventing loosening or displacement, thereby improving the long-term reliability and safety of the equipment. The snap-fit ​​design also reduces fixing failures caused by loose or damaged screws, lowering the risk of equipment malfunction.

[0008] In some embodiments, optionally, at least two snap-fit ​​slots are provided on each side wall of the battery box near the mounting opening on opposite sides; at least two snap-fit ​​portions are provided on each side of the pressure plate on opposite sides.

[0009] In these embodiments, by providing at least two locking slots and locking parts that cooperate with each other, the connection between the pressure plate and the battery box is more stable and reliable, and the force can be applied more evenly in the direction of the battery module, further enhancing the installation stability of the battery module in the battery box, effectively reducing the risk of damage caused by battery module shaking or uneven force, improving the overall reliability and service life of the energy storage device, while facilitating installation and disassembly, making operation more convenient and efficient, and improving production efficiency and maintenance convenience.

[0010] In some embodiments, optionally, three snap-fit ​​grooves are evenly spaced on each side wall of the battery box near the mounting opening on opposite sides; and three snap-fit ​​portions are evenly spaced on each side of the pressure plate on opposite sides.

[0011] In these embodiments, by evenly spaced three locking slots and locking parts, the pressure plate can apply a more uniform force to the battery module when closing the mounting opening, effectively preventing excessive local stress on the battery module within the battery box and further improving the installation stability of the battery module. Simultaneously, the multiple locking points enhance the connection strength between the pressure plate and the battery box, ensuring that the pressure plate can still securely close the mounting opening even after prolonged use or external impact, avoiding locking failure due to excessive force at a single point.

[0012] In some embodiments, optionally, when the snap-fit ​​portions of the pressure plate located at the ends on opposite sides are snap-fitted and fixed to the snap-fit ​​grooves located at the ends of the side walls on opposite sides of the battery box, the first side of the pressure plate is fixed to the battery box, and the pressure plate can rotate around the first side; as the pressure plate rotates and approaches the mounting opening, the other snap-fit ​​portions of the pressure plate on opposite sides are sequentially snap-fitted and fixed to the other snap-fit ​​grooves on opposite sides of the battery box.

[0013] In these embodiments, this arrangement makes the installation process of the pressure plate more flexible and stable. First, the pressure plate engages with the end engaging slot of the battery box via its end engaging portion, securing the first side of the pressure plate and providing a fulcrum for subsequent operations. As the pressure plate rotates around the first side and gradually approaches the mounting opening, the other engaging portions sequentially engage with the engaging slots. This gradual engagement method ensures a more secure connection between the pressure plate and the battery box and applies force evenly to the battery module, avoiding the risk of damage caused by uneven force during a single engagement. Furthermore, this rotary installation method not only improves the convenience of installation and disassembly but also allows for adjustments to the rotation angle of the pressure plate to adapt to different installation requirements based on the size and layout of different battery modules. This enhances the versatility and adaptability of the pressure plate assembly, further improving the reliability and service life of the energy storage device.

[0014] In some embodiments, optionally, the second side of the pressure plate has a limiting portion, the second side and the first side are respectively disposed at opposite ends of the pressure plate, the limiting portion is perpendicular to the pressure plate or has a first preset angle with the pressure plate, and extends toward the battery module. After the snap-fit ​​portion snaps into the snap-fit ​​groove, the limiting portion abuts against the top of the battery module.

[0015] In these embodiments, not only is the fixing effect of the pressure plate on the battery module further enhanced, but the precise force of the limiting part also ensures the stability and safety of the battery module within the battery box. The limiting part effectively prevents the battery module from shifting or loosening when subjected to external impacts or vibrations, thereby improving the reliability and durability of the entire energy storage system. Furthermore, the angle design of the limiting part can be optimized according to the specific shape and size of the battery module to adapt to different installation requirements, further improving the versatility and adaptability of the pressure plate assembly.

[0016] In some embodiments, optionally, positioning grooves are provided on both side walls of the battery box near the mounting opening, and the positioning grooves are connected to the snap-fit ​​grooves; when the pressure plate rotates around the first side, the snap-fit ​​portions at the ends of the opposite sides of the pressure plate are located in the positioning grooves to limit the rotation center of the pressure plate.

[0017] In these embodiments, this design effectively ensures the stability of the pressure plate during rotation, preventing it from shifting or wobbling when the mounting opening is closed, thus guaranteeing precise docking between the pressure plate and the battery box. The positioning groove's limiting effect on the pressure plate's rotation center further improves the accuracy and reliability of the pressure plate installation, making subsequent engagement of other locking parts with the locking groove smoother and more secure, enhancing the structural stability of the entire energy storage device and the fixing effect of the battery module.

[0018] In some embodiments, the snap-fit ​​portion may optionally be shaft-shaped.

[0019] In these embodiments, this design allows for more flexible installation and removal of the pressure plate when it is snapped into the battery box. The shaft-shaped snap-fit ​​portion can slide smoothly within the snap-fit ​​groove, ensuring that the pressure plate can accurately find the snap-fit ​​position during rotation, thereby achieving rapid fixation. Furthermore, the shape of the shaft-shaped snap-fit ​​portion helps to distribute force after snapping, improving the stability of the connection between the pressure plate and the battery box and preventing damage caused by excessive localized force. Simultaneously, the shaft-shaped snap-fit ​​portion, in conjunction with the positioning groove, can effectively limit the rotation center of the pressure plate, further improving installation accuracy and ensuring that the pressure plate can apply force evenly to the battery module after closing the installation opening, enhancing the fixation effect of the battery module and improving the overall reliability and safety of the energy storage device.

[0020] In some embodiments, the snap-fit ​​groove may optionally be an L-shaped groove.

[0021] In these embodiments, this design enhances the connection stability between the pressure plate and the battery box. The L-shaped groove structure guides the snap-fit ​​parts to align accurately and effectively prevents loosening or dislodgement, thereby ensuring the reliability of the pressure plate when the mounting opening is closed.

[0022] In some embodiments, optionally, the pressure plate has folded edges on opposite sides, the folded edges are perpendicular to the pressure plate or have a second preset angle with the pressure plate and extend in a direction away from the battery module, and the snap-fit ​​portion is disposed on the folded edges.

[0023] In these embodiments, this design effectively improves the structural rigidity of the pressure plate, making it less prone to deformation under stress, thereby ensuring that the pressure plate can apply force to the battery module stably and evenly. The folded edge structure enhances the support of the snap-fit ​​part, making the fit between the snap-fit ​​part and the snap-fit ​​groove more stable and reducing the possibility of the snap-fit ​​part loosening due to external impact or vibration. At the same time, the folded edge optimizes the stress distribution of the pressure plate, avoids local stress concentration, and extends the service life of the pressure plate and the battery box. In addition, the folded edge design also improves the convenience of installation and disassembly, making the snap-fit ​​part easier to access the snap-fit ​​groove and simplifying the operation process.

[0024] In some embodiments, optionally, a fixing part is provided at the end of the folded edge away from the pressure plate. The fixing part is parallel to the pressure plate and is used to connect with the battery box to fix the pressure plate assembly.

[0025] In these embodiments, this design enhances the connection strength between the pressure plate assembly and the battery box by providing additional fixing points. The connection between the fixing part and the battery box (e.g., via bolts, screws, or other fasteners) not only further prevents loosening or displacement of the pressure plate during use but also distributes the stress on the pressure plate, thereby improving the stability of the entire structure. Furthermore, the synergistic effect of the fixing part and the folded edge ensures the uniformity and reliability of the pressure plate when force is applied, further improving the fixing effect of the battery module and ensuring the safe operation of the energy storage system.

[0026] In some embodiments, the energy storage device may optionally further include an elastic element, which includes a first elastic buffer and a second elastic buffer; the first elastic buffer is disposed between the pressure plate and the battery module.

[0027] In these embodiments, this design allows the pressure plate to absorb and disperse some of the pressure when applying force to the battery module through an elastic buffer, thereby avoiding excessive local pressure caused by direct contact between the pressure plate and the battery module, and reducing the risk of damage to the battery module surface. The elastic buffer also effectively alleviates stress on the battery module caused by vibration or impact during operation, further improving the stability and lifespan of the battery module. Furthermore, the flexibility of the elastic buffer can adapt to the minute deformations of the battery module, ensuring good contact between the pressure plate and the battery module. Simultaneously, the elastic buffer also allows the locking part to be pressed against the positioning groove, preventing the locking part from disengaging from the locking groove as the pressure plate rotates around the first side, effectively improving rotational stability.

[0028] In some embodiments, the energy storage device may optionally further include an elastic element, which includes a first elastic buffer and a second elastic buffer: the second elastic buffer is disposed between the contact surface of the battery module and the battery box corresponding to the battery module.

[0029] In these embodiments, this design allows the pressure plate to absorb and disperse some of the pressure when applying force to the battery module through an elastic buffer, thereby avoiding excessive local pressure caused by direct contact between the pressure plate and the battery module, and reducing the risk of damage to the battery module surface. The elastic buffer also effectively alleviates stress on the battery module caused by vibration or impact during operation, further improving the stability and lifespan of the battery module. Furthermore, the flexibility of the elastic buffer can adapt to the minute deformations of the battery module, ensuring good contact between the pressure plate and the battery module. Simultaneously, the elastic buffer also allows the locking part to be pressed against the positioning groove, preventing the locking part from disengaging from the locking groove as the pressure plate rotates around the first side, effectively improving rotational stability.

[0030] In some embodiments, the first or second elastic cushioning member may optionally include at least one or a combination of the following: foam, rubber, polyurethane foam, and plastic.

[0031] In these embodiments, these materials possess excellent elasticity and flexibility, effectively absorbing and dispersing the forces exerted on the battery modules by the pressure plate and battery box, preventing damage to the battery modules due to excessive local pressure. Simultaneously, they significantly reduce the impact of vibration and shock on the battery modules during equipment operation or transportation, lowering the risk of internal structural damage and extending their service life. Furthermore, the lightweight nature of these materials helps reduce the overall weight of the energy storage device, facilitating installation and handling, while their corrosion resistance and durability ensure the long-term stable performance of the elastic buffer components under various environments, reducing maintenance costs and improving the reliability and economy of the energy storage system.

[0032] Additional aspects and advantages of this invention will become apparent in the following description or may be learned by practice of this invention. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0034] Figure 1 One of the structural schematic diagrams of an energy storage device according to an embodiment of the present invention is shown;

[0035] Figure 2 A second schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0036] Figure 3 The third schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention;

[0037] Figure 4The fourth schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention;

[0038] Figure 5 The fifth schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention;

[0039] Figure 6 The sixth schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention;

[0040] Figure 7 The seventh schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention;

[0041] Figure 8 The eighth schematic diagram shows the structure of an energy storage device according to an embodiment of the present invention;

[0042] Figure 9 An exploded view of an energy storage device according to an embodiment of the present invention is shown;

[0043] Figure 10 The ninth diagram shows the structure of an energy storage device according to an embodiment of the present invention.

[0044] in, Figures 1 to 10 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0045] 100 Energy storage device, 10 Battery box, 102 Mounting port, 104 Snap-fit ​​slot, 106 Positioning slot, 20 Battery module, 30 Pressure plate assembly, 302 Pressure plate, 3020 First side, 3022 Second side, 3024 Limiting part, 3026 Folded edge part, 3028 Fixing part, 304 Snap-fit ​​part, 40 First elastic buffer, 50 Second elastic buffer, 60 Power box, 70 Elastic part. Detailed Implementation

[0046] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0048] The following reference Figures 1 to 10 This invention describes an energy storage device proposed according to some embodiments of the present invention.

[0049] According to an embodiment of the first aspect of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the first aspect of this utility model discloses an energy storage device 100, including a battery box 10, a battery module 20, and a pressure plate assembly 30. The battery box 10 has a mounting opening 102 and snap-fit ​​grooves 104 on both side walls of the battery box 10 near the mounting opening 102. The battery module 20 can be detachably installed in the battery box 10 through the mounting opening 102. The pressure plate assembly 30 includes a pressure plate 302 and snap-fit ​​portions 304 disposed on opposite sides of the pressure plate 302. The snap-fit ​​portions 304 are used to snap into the snap-fit ​​grooves 104, so that the pressure plate 302 closes the mounting opening 102 and applies a force in the direction of the battery module 20.

[0050] During actual installation, the battery module 20 can be placed into the battery box 10 through the mounting port 102, ensuring that the end of the battery module 20 fits tightly against the inner wall of the battery box 10. Then, the snap-fit ​​part 304 of the pressure plate assembly 30 is aligned with the snap-fit ​​groove 104 on both side walls of the battery box 10, so that the snap-fit ​​part 304 snaps into the snap-fit ​​groove 104. At this time, the pressure plate 302 applies a pressing force to the battery module 20, ensuring the stability and safety of the battery module 20 within the battery box 10.

[0051] The engagement between the latching part 304 and the latching slot 104 can be achieved in various ways. For example, when multiple latching parts 304 and latching slots 104 are provided, the latching part 304 at one end of the pressure plate 302 can be latched into the latching slot 104 at one end of the battery box 10 first. Then, the pressure plate 302 can be rotated around this axis to allow the other latching parts 304 to be latched into the latching slots 104 in sequence. Alternatively, multiple latching parts 304 can be aligned with the latching slots 104 respectively, and then force can be applied to the pressure plate 302 to allow multiple latching parts 304 to be latched into the latching slots 104 simultaneously. Of course, other methods can also be used for engagement, and the specific engagement method is not limited.

[0052] When it is necessary to disassemble the battery module 20, simply slide the snap-fit ​​part 304 out of the snap-fit ​​groove 104, remove the pressure plate 302, and then take the battery module 20 out of the battery box 10 through the mounting port 102.

[0053] The energy storage device 100 provided by this utility model achieves convenient closure and fixation of the pressure plate 302 by setting snap-fit ​​grooves 104 on the opposite side walls of the battery box 10 near the mounting port 102, and utilizing the snap-fit ​​part 304 on the pressure plate assembly 30 to cooperate with the snap-fit ​​grooves 104. This not only effectively closes the mounting port 102, preventing the battery module 20 from shifting within the battery box 10 and ensuring its installation stability, but also precisely applies force in the direction of the battery module 20, ensuring uniform force distribution on the battery module 20, enhancing the overall connection strength between the battery module 20 and the battery box 10, extending the service life of the battery module 20, reducing the risk of damage to the battery module 20 due to collisions, vibrations, and other factors, and improving the reliability and safety of the energy storage device 100, providing a strong guarantee for the stable operation of the energy storage system. At the same time, since the snap-fit ​​pressure plate assembly 30 can quickly position and fix the battery module 20 without tools, it reduces the time and complexity of tightening screws one by one in the traditional screw fixing method. During maintenance, the snap-fit ​​design allows for easy disassembly and reinstallation, significantly reducing maintenance time and costs. Furthermore, the snap-fit ​​clamping assembly 30, through its mechanical snap-fit ​​mechanism, firmly presses the battery module 20 into place, ensuring its stability within the enclosure, effectively resisting vibration and impact, and preventing loosening or displacement, thereby improving the long-term reliability and safety of the equipment. The snap-fit ​​design also reduces fixing failures caused by loose or damaged screws, lowering the risk of equipment malfunction.

[0054] In some embodiments, optionally, in order to ensure the reliability of the pressure plate 302 in fixing the battery module 20 and to prevent the pressure plate 302 from damaging the battery module 20 when the pressure is too high, the pressure plate 302 can be set as an elastic element.

[0055] In some embodiments, the mounting port 102 can be optionally located on the side of the battery box 10, so that the battery module 20 can be installed into the battery box 10 from the side, eliminating the need to use professional hoisting tools to hoist the battery module 20 into the battery box 10 from the top, thus improving the convenience of installation and simplifying the installation process.

[0056] In some embodiments, optionally, the battery box 10 is provided with at least two snap-fit ​​slots 104 on each side wall of opposite sides near the mounting port 102; and the pressure plate 302 is provided with at least two snap-fit ​​portions 304 on each side of opposite sides.

[0057] In these embodiments, at least two snap-fit ​​slots 104 can be provided on each side wall of the battery box 10 near the mounting port 102, and at least two snap-fit ​​parts 304 can be provided on each side of the pressure plate 302. This multi-point snap-fit ​​design makes the connection between the pressure plate 302 and the battery box 10 more stable and reliable, and can apply force more evenly in the direction of the battery module 20, further enhancing the installation stability of the battery module 20 in the battery box 10, effectively reducing the risk of damage caused by the shaking or uneven force of the battery module 20, improving the overall reliability and service life of the energy storage device 100, and facilitating installation and disassembly, making operation more convenient and efficient, and improving production efficiency and maintenance convenience.

[0058] In some embodiments, optionally, there are two snap-fit ​​portions 304, with each snap-fit ​​portion 304 positioned near one end of the pressure plate 302. This further enhances the installation stability of the battery module 20 within the battery box 10.

[0059] In some embodiments, the mounting port 102 is optionally located on the back of the battery box 10, and the snap-fit ​​slots 104 are located on the left and right sides of the battery box 10.

[0060] In some embodiments, optionally, the battery box 10 has three snap-fit ​​grooves 104 evenly spaced on each side wall of opposite sides near the mounting port 102; and the pressure plate 302 has three snap-fit ​​portions 304 evenly spaced on each side of opposite sides.

[0061] In these embodiments, three snap-fit ​​slots 104 are evenly spaced on each side wall of the battery box 10 near the mounting opening 102, and three snap-fit ​​portions 304 are evenly spaced on each side of the pressure plate 302. By evenly spaced the three snap-fit ​​slots 104 and snap-fit ​​portions 304, the pressure plate 302 can apply a more uniform force to the battery module 20 when closing the mounting opening 102, effectively preventing excessive localized stress on the battery module 20 within the battery box 10 and further improving the installation stability of the battery module 20. Simultaneously, the multiple snap-fit ​​points enhance the connection strength between the pressure plate 302 and the battery box 10, ensuring that the pressure plate 302 can still securely close the mounting opening 102 even after prolonged use or external impact, avoiding snap-fit ​​failure due to excessive stress at a single point.

[0062] In some embodiments, optionally, both the snap-fit ​​groove 104 and the snap-fit ​​portion 304 include multiple snap-fit ​​portions 304 located at the ends of opposite sides of the pressure plate 302, when snap-fit ​​portions 304 located at the ends of opposite sides of the battery box 10 are snap-fitted and fixed, the first side 3020 of the pressure plate 302 is fixed to the battery box 10, and the pressure plate 302 can rotate around the first side 3020; during the process of the pressure plate 302 rotating and approaching the mounting port 102, the other snap-fit ​​portions 304 on opposite sides of the pressure plate 302 are sequentially snap-fitted and fixed to the other snap-fit ​​grooves 104 on opposite sides of the battery box 10.

[0063] In these embodiments, both the snap-fit ​​groove 104 and the snap-fit ​​portion 304 include multiple parts. The snap-fit ​​portion 304 can be disposed at the end of the pressure plate 302, and the snap-fit ​​groove 104 can be disposed at the end of the side wall of the battery box 10. This allows the pressure plate 302 to rotate around the center of rotation, enabling the sequential installation of the snap-fit ​​portion 304 and the snap-fit ​​groove 104. This arrangement makes the installation process of the pressure plate 302 more flexible and stable. First, the pressure plate 302 is snapped into the end snap-fit ​​groove 104 of the battery box 10 by the end snap-fit ​​portion 304, thus fixing the first side 3020 of the pressure plate 302 and providing a fulcrum for subsequent operations. As the pressure plate 302 rotates around the first side 3020 and gradually approaches the mounting opening 102, the other engaging parts 304 sequentially engage with the engaging slots 104. This gradual engagement method ensures a more stable connection between the pressure plate 302 and the battery box 10, and applies force evenly to the battery module 20, avoiding the risk of damage caused by uneven force during a single engagement. Furthermore, this rotary installation method not only improves the convenience of installation and disassembly, but also allows for adjustments to the rotation angle of the pressure plate 302 to accommodate different installation requirements based on the size and layout of the battery module 20. This enhances the versatility and adaptability of the pressure plate assembly 30, further improving the reliability and service life of the energy storage device 100.

[0064] In some embodiments, optionally, the second side 3022 of the pressure plate 302 has a limiting portion 3024. The second side 3022 and the first side 3020 are respectively disposed at opposite ends of the pressure plate 302. The limiting portion 3024 is perpendicular to the pressure plate 302 or has a first preset angle with the pressure plate 302 and extends toward the battery module 20. After the snap-fit ​​portion 304 snaps into the snap-fit ​​groove 104, the limiting portion 3024 abuts against the top of the battery module 20.

[0065] In these embodiments, a limiting portion 3024 is provided on the second side 3022 of the pressure plate 302. The second side 3022 and the first side 3020 are respectively provided at opposite ends of the pressure plate 302. The limiting portion 3024 is perpendicular to the pressure plate 302 or forms a first preset angle with the pressure plate 302 and extends towards the battery module 20. When the engaging portion 304 is fully engaged with the engaging groove 104, the limiting portion 3024 can tightly abut against the top of the battery module 20, thereby not only further enhancing the fixing effect of the pressure plate 302 on the battery module 20, but also ensuring the stability and safety of the battery module 20 within the battery box 10 through the precise force of the limiting portion 3024. The setting of the limiting portion 3024 effectively prevents the battery module 20 from shifting or loosening when subjected to external impact or vibration, thereby improving the reliability and durability of the entire energy storage system. In addition, the angle design of the limiting part 3024 can be optimized according to the specific shape and size of the battery module 20 to adapt to different installation requirements, further improving the versatility and adaptability of the pressure plate assembly 30.

[0066] By setting the limiting part 3024, the battery module 20 is limited in the vertical direction, realizing multi-directional limiting and further improving the overall stability of the energy storage device 100.

[0067] The first preset included angle can be set according to the actual situation of the battery module 20.

[0068] In some embodiments, the limiting portion 3024 may optionally be a limiting plate.

[0069] In some embodiments, the limiting portion 3024 may optionally be a bent portion in which a portion of the pressure plate 302 is bent to one side.

[0070] In some embodiments, optionally, positioning grooves 106 are provided on both sides of the battery box 10 near the mounting port 102, and the positioning grooves 106 communicate with the snap-fit ​​grooves 104; when the pressure plate 302 rotates around the first side 3020, the snap-fit ​​portions 304 at the ends of the opposite sides of the pressure plate 302 are located in the positioning grooves 106 to limit the rotation center of the pressure plate 302.

[0071] In these embodiments, positioning grooves 106 are provided on both side walls of the battery box 10 near the mounting opening 102, and the positioning grooves 106 communicate with the snap-fit ​​grooves 104. When the pressure plate 302 rotates around the first side 3020, the snap-fit ​​portions 304 at the ends of the opposite sides of the pressure plate 302 first enter the positioning grooves 106, thereby limiting the rotation center of the pressure plate 302. This design effectively ensures the stability of the pressure plate 302 during rotation, prevents the pressure plate 302 from shifting or shaking when closing the mounting opening 102, and ensures precise docking between the pressure plate 302 and the battery box 10. The limiting effect of the positioning grooves 106 on the rotation center of the pressure plate 302 further improves the accuracy and reliability of the installation of the pressure plate 302, making the subsequent snap-fit ​​of other snap-fit ​​portions 304 with the snap-fit ​​grooves 104 smoother and more secure, enhancing the structural stability of the entire energy storage device 100 and the fixing effect of the battery module 20.

[0072] In some embodiments, the snap-fit ​​portion 304 may optionally be axial.

[0073] In these embodiments, this design allows for more flexible installation and removal of the pressure plate 302 when it is snapped into the battery box 10. The shaft-shaped snap-fit ​​portion 304 can slide smoothly within the snap-fit ​​groove 104, ensuring that the pressure plate 302 can accurately find the snap-fit ​​position during rotation, thereby achieving rapid fixation. In addition, the shape of the shaft-shaped snap-fit ​​portion 304 helps to distribute the force after snapping, improving the stability of the connection between the pressure plate 302 and the battery box 10 and avoiding damage caused by excessive local force. At the same time, the shaft-shaped snap-fit ​​portion 304, in cooperation with the positioning groove 106, can effectively limit the rotation center of the pressure plate 302, further improving the installation accuracy and ensuring that the pressure plate 302 can apply force evenly to the battery module 20 after closing the mounting opening 102, enhancing the fixing effect of the battery module 20 and improving the overall reliability and safety of the energy storage device 100.

[0074] In some embodiments, the snap-fit ​​portion 304 may optionally be a snap-fit ​​shaft.

[0075] In some embodiments, the snap-fit ​​groove 104 may optionally be an L-shaped groove.

[0076] In these embodiments, the snap-fit ​​groove 104 can be designed as an L-shaped groove, which enhances the connection stability between the pressure plate 302 and the battery box 10. The structure of the L-shaped groove can guide the snap-fit ​​part 304 to accurately align and effectively prevent loosening or dislodgement, thereby ensuring the reliability of the pressure plate 302 when the mounting opening 102 is closed.

[0077] In some embodiments, the L-shaped groove may optionally include a first groove segment and a second groove segment. When the mounting port 102 is opened on the back of the battery box 10, the first groove segment extends horizontally to guide the movement direction of the snap-fit ​​part 304 during the installation process. The second groove segment communicates with the first groove segment and extends vertically, allowing the snap-fit ​​part 304 to slide from the first groove segment to the second groove segment for snap-fit.

[0078] In some embodiments, the second groove segment may optionally extend downward in a vertical direction.

[0079] In some embodiments, optionally, the second segment of the L-shaped groove at the end of the sidewalls opposite to the battery box 10 has a length greater than or equal to the length of the second segment of the other L-shaped grooves.

[0080] In this embodiment, by limiting the length of the second groove segment, the problem that the snap-fit ​​portion 304 other than the end of the pressure plate 302 cannot snap into the snap-fit ​​groove 104 during the installation process can be prevented.

[0081] In the actual installation process, such as Figure 1 As shown, the second elastic buffer 50, battery module 20, and first elastic buffer 40 can be sequentially installed into the battery box 10. The battery module 20 is pressed against the bottom of the battery box 10 by the structure of each side of the battery box 10. The pressure plate 302 is vertically slid downwards from the snap-fit ​​part 304 near the first side 3020 of the pressure plate 302 into the first groove. Then, the snap-fit ​​part 304 is slid to the right into the second groove. Due to the elastic buffer, the snap-fit ​​part 304 will be pressed into the positioning groove 106. The pressure plate 302 is rotated about the snap-fit ​​part 304 located in the positioning groove 106 as the axis. The other snap-fit ​​parts 304 of the pressure plate 302 will be sequentially snapped into the snap-fit ​​grooves 104. Finally, the pressure plate 302 is slid to the right to the bottom of the second groove, and the fixing screws are tightened on the fixing part 3028.

[0082] In some embodiments, optionally, the pressure plate 302 has folded edges 3026 on opposite sides, the folded edges 3026 being perpendicular to the pressure plate 302 or having a second preset angle with the pressure plate 302 and extending in a direction away from the battery module 20, and the snap-fit ​​portion 304 is disposed on the folded edges 3026.

[0083] In these embodiments, folded edges 3026 are respectively provided on opposite sides of the pressure plate 302. The folded edges 3026 are perpendicular to the pressure plate 302 or have a second preset angle with the pressure plate 302, and extend in a direction away from the battery module 20. The snap-fit ​​portion 304 is provided on the folded edges 3026. This design effectively improves the structural rigidity of the pressure plate 302, making it less prone to deformation under stress, thereby ensuring that the pressure plate 302 can apply force to the battery module 20 stably and evenly. The structure of the folded edges 3026 enhances the support of the snap-fit ​​portion 304, making the fit between the snap-fit ​​portion 304 and the snap-fit ​​groove 104 more stable, reducing the possibility of the snap-fit ​​portion 304 loosening due to external impact or vibration. At the same time, the setting of the folded edges 3026 optimizes the stress distribution of the pressure plate 302, avoids local stress concentration, and extends the service life of the pressure plate 302 and the battery box 10. In addition, the design of the folded edge 3026 improves the convenience of installation and disassembly, making the snap-fit ​​part 304 easier to access the snap-fit ​​slot 104 and simplifying the operation process.

[0084] In some embodiments, optionally, a fixing part 3028 is provided at the end of the folded edge 3026 away from the pressure plate 302. The fixing part 3028 is parallel to the pressure plate 302 and is used to connect with the battery box 10 to fix the pressure plate assembly 30.

[0085] In these embodiments, this design enhances the connection strength between the pressure plate assembly 30 and the battery box 10 by providing additional fixing points. The connection between the fixing part 3028 and the battery box 10 (e.g., via bolts, screws, or other fasteners) not only further prevents the pressure plate 302 from loosening or shifting during use, but also distributes the stress on the pressure plate 302, thereby improving the stability of the entire structure. Furthermore, the synergistic effect of the fixing part 3028 and the folded edge part 3026 ensures the uniformity and reliability of the pressure plate 302 when force is applied, further improving the fixing effect of the battery module 20 and ensuring the safe operation of the energy storage system.

[0086] In some embodiments, the fixing part 3028 is optionally connected to the battery box 10 by bolts.

[0087] In some embodiments, the fixing portion 3028 may be formed by bending a portion of the folded edge 3026 to one side.

[0088] In some embodiments, the energy storage device 100 may optionally include an elastic element 70, which includes a first elastic buffer 40 and a second elastic buffer 50; the first elastic buffer 40 is disposed between the pressure plate 302 and the battery module 20.

[0089] In these embodiments, this design allows the pressure plate 302 to absorb and disperse some of the pressure when applying force to the battery module 20 through the elastic buffer, thereby avoiding excessive local pressure caused by the pressure plate 302 directly contacting the battery module 20 and reducing the risk of damage to the surface of the battery module 20. The elastic buffer can also effectively alleviate the stress generated by vibration or impact during operation of the battery module 20, further improving the stability and service life of the battery module 20. Furthermore, the flexibility of the elastic buffer can adapt to the slight deformation of the battery module 20, ensuring good contact between the pressure plate 302 and the battery module 20. Simultaneously, by providing the elastic buffer, the locking part 304 can be pressed against the positioning groove 106, thereby preventing the locking part 304 from disengaging from the locking groove 104 when the pressure plate 302 rotates around the first side 3020, effectively improving the stability of rotation.

[0090] In some embodiments, the first elastic buffer 40 is optionally disposed between the pressure plate 302 and the battery module 20, and covers part of the surface of the battery module 20, or covers the entire surface of the battery module 20 opposite to the pressure plate 302.

[0091] In some embodiments, the first elastic buffer 40 is optionally an elastic buffer strip, and two elastic buffer strips are provided between the pressure plate 302 and the battery module 20, with the two elastic buffer strips spaced apart.

[0092] In some embodiments, the energy storage device 100 may optionally include an elastic element 70, which includes a first elastic buffer 40 and a second elastic buffer 50; the second elastic buffer 50 is disposed between the contact surfaces of the battery module 20 and the battery box 10 corresponding to the battery module 20.

[0093] In these embodiments, the energy storage device 100 further includes a second elastic buffer 50 disposed between the contact surfaces of the battery module 20 and the corresponding battery box 10. This design further enhances the installation stability and safety of the battery module 20. Specifically, when the pressure plate 302 applies force to the battery module 20, it can absorb and disperse some of the pressure through the elastic buffer, thereby avoiding excessive local pressure caused by the pressure plate 302 directly contacting the battery module 20 and reducing the risk of damage to the surface of the battery module 20. The elastic buffer can also effectively alleviate the stress generated by vibration or impact during the operation of the battery module 20, further improving the stability and service life of the battery module 20. In addition, the flexibility of the elastic buffer can adapt to the small deformations of the battery module 20, ensuring good contact between the pressure plate 302 and the battery module 20. Meanwhile, by setting an elastic buffer, the snap-fit ​​part 304 can be pressed against the positioning groove 106, so that the pressure plate 302 can rotate around the first side 3020, which can prevent the snap-fit ​​part 304 from disengaging from the snap-fit ​​groove 104 and effectively improve the stability of rotation.

[0094] In some embodiments, the second elastic buffer 50 is optionally disposed between the contact surfaces of the battery module 20 and the battery box 10 corresponding to the battery module 20, and covers a portion of the surface of the battery module 20, or covers the entire surface of the battery module 20 opposite to the contact surfaces of the battery box 10.

[0095] In some embodiments, the second elastic buffer 50 is optionally an elastic buffer strip, and two elastic buffer strips are provided between the contact surfaces of the battery module 20 and the battery box 10 corresponding to the battery module 20, with the two elastic buffer strips spaced apart.

[0096] In some embodiments, the first elastic buffer 40 or the second elastic buffer 50 may optionally include at least one or a combination of the following: foam, rubber, polyurethane foam and plastic.

[0097] In these embodiments, these materials possess excellent elasticity and flexibility, effectively absorbing and dispersing the forces exerted on the battery module 20 by the pressure plate 302 and the battery box 10, preventing damage to the battery module 20 due to excessive local pressure. Simultaneously, they significantly reduce the impact of vibration and shock on the battery module 20 during equipment operation or transportation, lowering the risk of internal structural damage and extending its service life. Furthermore, the lightweight nature of these materials helps reduce the overall weight of the energy storage device 100, facilitating installation and handling, while their corrosion resistance and durability ensure the long-term stable performance of the elastic buffer components under different environments, reducing maintenance costs and improving the reliability and economy of the energy storage system.

[0098] In some embodiments, the first elastic cushioning element 40 may optionally be foam.

[0099] In some embodiments, the second elastic cushioning member 50 may optionally be foam.

[0100] In some embodiments, the energy storage device 100 may optionally include a power box 60 disposed at the mounting port 102 and fixedly connected to the battery box 10.

[0101] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0102] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0103] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy storage device, characterized in that, include: A battery box, the battery box having a mounting opening and snap-fit ​​grooves on both side walls of the battery box opposite to the mounting opening; A battery module, wherein the battery module is detachably installed in the battery box through the mounting port; A pressure plate assembly includes a pressure plate and snap-fit ​​portions disposed on opposite sides of the pressure plate; The snap-fit ​​part is used to snap into the snap-fit ​​slot so that the pressure plate closes the mounting opening and applies a force in the direction of the battery module.

2. The energy storage device according to claim 1, characterized in that, At least two snap-fit ​​slots are provided on each side wall of the battery box near the mounting port on both sides. The pressure plate has at least two snap-fit ​​portions on each of its opposite sides.

3. The energy storage device according to claim 2, characterized in that, Three snap-fit ​​slots are evenly spaced on each side wall of the battery box near the mounting port on both sides. The pressure plate has three locking parts evenly spaced on each of its two sides.

4. The energy storage device according to claim 2, characterized in that, When the snap-fit ​​portion of the pressure plate located at the end of the opposite sides is snap-fitted and fixed to the snap-fit ​​groove of the side wall located at the end of the opposite sides of the battery box, the first side of the pressure plate is fixed to the battery box, and the pressure plate can rotate around the first side; As the pressure plate rotates and approaches the mounting port, the other snap-fit ​​parts on opposite sides of the pressure plate sequentially snap-fit ​​and fix with the other snap-fit ​​slots on opposite sides of the battery box.

5. The energy storage device according to claim 4, characterized in that, The second side of the pressure plate has a limiting part. The second side and the first side are respectively disposed at opposite ends of the pressure plate. The limiting part is perpendicular to the pressure plate or has a first preset angle with the pressure plate and extends toward the battery module. After the snap-fit ​​part snaps into the snap-fit ​​groove, the limiting part abuts against the top of the battery module.

6. The energy storage device according to claim 4, characterized in that, The battery box has positioning grooves on both sides of the opposite side wall near the mounting port, and the positioning grooves are connected to the snap-fit ​​grooves. When the pressure plate rotates around the first side, the snap-fit ​​portions at the ends of the pressure plate on opposite sides are located in the positioning groove to limit the rotation center of the pressure plate.

7. The energy storage device according to any one of claims 1 to 6, characterized in that, The snap-fit ​​part is shaft-shaped.

8. The energy storage device according to any one of claims 1 to 6, characterized in that, The snap-fit ​​groove is an L-shaped groove.

9. The energy storage device according to any one of claims 1 to 6, characterized in that, The pressure plate has folded edges on its opposite sides. The folded edges are perpendicular to the pressure plate or have a second preset angle with the pressure plate and extend away from the battery module. The snap-fit ​​part is disposed on the folded edges.

10. The energy storage device according to claim 9, characterized in that, A fixing part is provided at the end of the folded edge away from the pressure plate. The fixing part is parallel to the pressure plate and is used to connect with the battery box to fix the pressure plate assembly.

11. The energy storage device according to any one of claims 1 to 6, characterized in that, Also includes: An elastic element, wherein the elastic element includes a first elastic buffer and a second elastic buffer; A first elastic buffer is disposed between the pressure plate and the battery module; and / or A second elastic buffer is disposed between the contact surfaces of the battery module and the battery box corresponding to the battery module.

12. The energy storage device according to claim 11, characterized in that, The elastic element includes one of the following: foam, rubber, polyurethane foam, and plastic.

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