Energy storage device

Abstract

The utility model relates to an energy storage device, and relates to the field of energy storage technology, the energy storage device comprises a plurality of energy storage modules, the plurality of energy storage modules are stacked from top to bottom, the upper side and the lower side of each energy storage module are respectively provided with a guide positioning part and a guide groove, and the guide positioning parts and the guide grooves of the adjacent energy storage modules are connected in an inserted manner; the device further comprises an adsorption piece, and the adsorption piece fixes the guide positioning part in the guide groove. According to the invention, through the accurate insertion connection of the guiding positioning part and the guiding groove and the fixing effect of the adsorption piece, the accurate positioning of the energy storage module is ensured, and the deviation or shaking during stacking is avoided; compared with a traditional bolt connection mode, the stacking mode of the energy storage device is simpler, more convenient and faster, bolts and handles do not need to be installed one by one, the assembling steps are reduced, the stacking time is saved, the stacking efficiency is improved, and therefore the requirements for positioning accuracy and stacking efficiency in the energy storage PACK stacking process are met.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage device. Background Art

[0002] With the rapid development and widespread application of energy storage systems, the increasing demand for energy storage systems in fields such as home energy storage systems and industrial energy storage has put forward higher requirements on the stacking efficiency of energy storage PACK.

[0003] The traditional energy storage PACK stacking method usually adopts a handle with bolt structure, which has certain limitations and low efficiency during the construction process. The traditional handle with bolt structure requires the bolts and handles to be installed one by one, which is cumbersome to operate. Each installation requires aligning the bolt holes and tightening the bolts, which increases the worker's operation time and labor intensity; and due to the limitations of the bolt connection method, it is easy to cause inaccurate positioning of the stacking. If the positioning of each layer of battery pack is inaccurate, it is easy to cause stability and safety problems of the entire battery pack. Utility Model Content

[0004] In order to improve the problems of inaccurate stacking positioning and low stacking efficiency of energy storage PACKs, the present application provides an energy storage device.

[0005] The energy storage device provided in this application adopts the following technical solution:

[0006] An energy storage device includes multiple energy storage modules, which are stacked from top to bottom, and the upper and lower sides of the energy storage modules are respectively provided with guide positioning parts and guide grooves, and the guide positioning parts of adjacent energy storage modules are plug-connected with the guide grooves; and also includes an adsorption member, which fixes the guide positioning part in the guide groove.

[0007] By adopting the above technical solution, during installation, multiple energy storage modules are stacked in sequence from top to bottom. During stacking, the guide positioning parts and guide grooves between adjacent energy storage modules are plug-in connected to achieve the positioning and stacking of the energy storage modules, and the guide positioning parts are fixed in the guide grooves by adsorption parts to ensure the stable stacking of the energy storage modules. The present application ensures the accurate positioning of the energy storage modules through the precise plug-in connection between the guide positioning parts and the guide grooves, as well as the fixing effect of the adsorption parts, to avoid deviation or shaking during stacking. Compared with the traditional bolt connection method, the stacking method of the energy storage device of the present application is simpler and faster, without the need to install bolts and handles one by one, reducing the assembly steps, saving stacking time, and improving stacking efficiency, thereby meeting the requirements of positioning accuracy and stacking efficiency in energy storage PACK stacking.

[0008] In a specific possible implementation manner, the adsorption component includes a magnetic block, and the guide positioning portion and the guide groove are provided with the magnetic block, and are fixed by attraction through the magnetic block.

[0009] By adopting the above technical solution, when two energy storage modules are stacked, the guide positioning part is inserted into the guide groove, and the guide positioning part and the magnetic block in the guide groove will attract each other and be fixed together to form a stable connection; the magnetic connection method is simple and effective, and no additional auxiliary tools or manpower are required to fix the energy storage module, and the assembly speed is significantly improved; and the magnetic block provides a strong adsorption force, ensuring the stability of the energy storage module during the stacking process, and the energy storage device can maintain a stable structure even in the case of vibration or other external interference.

[0010] In a specific possible implementation manner, a first connector and a second connector are respectively disposed on the upper and lower sides of the energy storage module, and the first connector is inserted into the adjacent second connector and abuts against the second connector.

[0011] By adopting the above technical solution, when stacking, the first connector of the energy storage module is inserted into the second connector of the adjacent energy storage module to ensure physical contact between the two connectors, and the first connector forms a friction inside the second connector, so that the two modules can be tightly connected together, thereby improving the connection firmness of the two adjacent energy storage modules and providing additional support and stability; in this process, during the plug-in process, an electrical connection can also be achieved between the first connector and the second connector, which is achieved by the conductive components designed inside the connector, ensuring the transmission of electrical signals and energy between the energy storage modules, so that the energy storage system has higher overall stability, reliability and safety.

[0012] In a specific possible implementation manner, the first plug connector and the second plug connector are sealed by a first sealing member and a second sealing member.

[0013] By adopting the above technical solution and utilizing the sealing structure of the first seal and the second seal, a double seal is formed between the connectors, which can effectively prevent the intrusion of the external environment and improve the protection function of the connection part. The stability of the sealing structure ensures the safety of the connection part, avoids safety hazards such as short circuit and leakage caused by external environmental factors, protects the connection part and improves the stability, safety and reliability of the energy storage system, thereby extending the service life of the energy storage system.

[0014] In a specific possible implementation manner, the first sealing member includes a first sealing protrusion provided on the first plug-in connector and a sealing recess provided on the second plug-in connector, wherein the sealing protrusion is inserted into the sealing recess and contacts the sealing recess.

[0015] By adopting the above technical solution, when the first connector is connected to the second connector, the first sealing protrusion will be inserted into the sealing recess of the second connector. This design ensures a sealed connection between the two connectors. During the sealing process, they can be accurately matched and interfere with each other, ensuring the reliability and stability of the sealing effect. This design is relatively simple and does not require complex accessories or seals, which simplifies the design and manufacturing process and reduces costs and manufacturing difficulties. Moreover, since the sealing component is directly embedded in the connector instead of being attached to the outside, the sealing component is more durable and can withstand greater pressure and service life.

[0016] In a specific possible implementation manner, the second sealing member includes a second sealing protrusion, the second sealing protrusion abuts against an outer wall of an adjacent energy storage module, and the second sealing protrusion is interference fit with the outer wall of the energy storage module.

[0017] By adopting the above technical solution, when the energy storage modules are stacked together, the sealing protrusion on the second sealing member will abut against the outer wall of the adjacent energy storage module, and this abutment forms a closed structure. An interference fit is formed between the second sealing protrusion and the outer wall of the energy storage module, ensuring close contact between the second sealing protrusion and the outer wall of the energy storage module, thereby improving the sealing performance and preventing the infiltration or leakage of external substances; and the interference fit also helps to prevent loosening during vibration or movement, maintaining the stability and reliability of the sealing structure.

[0018] In a specific possible implementation mode, the guide positioning portion and the guide groove are provided with a communicating screw hole.

[0019] By adopting the above technical solution, after the guide positioning part is inserted into the guide groove, the adsorption part fixes the guide positioning part in the guide groove. At this time, on the basis of adsorption fixation, secondary fixation can also be performed through the screw holes. The connected screw holes allow the guide positioning part and the guide groove to be connected by screws, thereby strengthening the connection between them and making it more firm and stable.

[0020] In a specific possible implementation mode, the guiding and positioning portion is provided with a guiding arc surface.

[0021] By adopting the above technical solution, when the guide positioning part is assembled with the guide groove, the guide arc surface can play a guiding role, making the assembly process smoother and more accurate; the smooth surface of the guide arc surface can reduce the friction during assembly, making the relative movement between components easier and smoother, reducing friction and errors during assembly, improving the quality and stability of assembly, and reducing problems and defects caused by inaccurate assembly.

[0022] In a specific possible implementation mode, the guide groove is provided with a matching arc surface, and the matching arc surface is in contact with and fits with the guide arc surface.

[0023] By adopting the above technical solution and utilizing the design of the matching arc surface, the abutment and fit between the matching arc surface and the guide arc surface can ensure the stable positioning between the guide positioning portion and the guide groove, prevent the displacement or loosening of the components after assembly, and improve the connection stability between the guide positioning portion and the guide groove, thereby improving the stacking stability between adjacent energy storage modules.

[0024] In a specific possible implementation manner, the energy storage module is provided with a shock absorbing pad, and the shock absorbing pad is located between two adjacent energy storage modules.

[0025] By adopting the above technical solution, when the energy storage modules are stacked, collision may occur between two adjacent modules. The shock-absorbing pad is designed to be located between adjacent modules, which plays a role in buffering and absorbing collision energy, thereby reducing the impact force and vibration during the collision and improving the reliability, durability and safety of the entire device.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The energy storage device of the present application realizes precise plug-in connection between two adjacent energy storage modules by designing guide positioning parts and guide grooves on the energy storage modules, and the fixing effect of the adsorption parts ensures the accurate positioning of two adjacent energy storage modules and avoids deviation or shaking during stacking; compared with the traditional bolt connection method, the stacking method of the energy storage device of the present application is simpler and faster, saves stacking time, improves stacking efficiency, and meets the requirements of positioning accuracy and stacking efficiency in energy storage PACK stacking;

[0028] 2. The energy storage device of the present application, after stacking, the first connector and the second connector are plugged and connected. At this time, the first seal and the second seal form a double seal between the first connector and the second connector, which can effectively prevent the intrusion of the external environment and improve the protection function of the connection part. The stability of the sealing structure ensures the safety of the connection part, avoids safety hazards such as short circuit and leakage caused by external environmental factors, protects the connection part and improves the stability, safety and reliability of the energy storage system, and extends the service life of the energy storage system;

[0029] 3. The energy storage device of the present application can be fixed for a second time through screw holes on the basis of adsorption fixation. The connected screw holes allow the guide positioning portion and the guide groove to be connected by screws, thereby strengthening the connection between them, making them more firm and stable, thereby improving the connection and fixation between two adjacent energy storage modules, and improving the stacking stability and safety of the entire energy storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the energy storage device of Example 1 of the present application.

[0031] Figure 2 It is a schematic diagram for showing the structure of the guide positioning part and the first connector of the energy storage module.

[0032] Figure 3 It is a schematic diagram for showing the structure of the guide groove and the second connector of the energy storage module

[0033] Figure 4 It is a schematic diagram for showing the structure of the adsorption component.

[0034] Figure 5 It is a schematic diagram for showing the structure of the first sealing member and the second sealing member.

[0035] Figure 6 It is a schematic diagram for showing the structure of the first sealing protrusion.

[0036] Figure 7 It is a schematic diagram for showing the structure of the second sealing protrusion and the sealing recess.

[0037] Figure 8 It is a structural schematic diagram of the energy storage module of Example 2 of the present application.

[0038] Fig. 9 It is a structural diagram used to show the screw hole.

[0039] Fig.10 It is a structural schematic diagram of the energy storage module of Example 3 of the present application.

[0040] Explanation of the accompanying drawings: 1. Energy storage module; 2. Guide and positioning portion; 21. Guide arc surface; 3. Guide groove; 4. Adsorption member; 41. Magnetic block; 5. First plug-in connector; 6. Second plug-in connector; 7. First sealing member; 71. First sealing protrusion; 72. Sealing recess; 8. Second sealing member; 81. Second sealing protrusion; 9. Screw hole; 10. Shock-absorbing pad. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-10 This application is described in further detail.

[0042] Embodiment 1

[0043] Reference Figure 1 , the embodiment of the present application discloses an energy storage device, comprising a plurality of energy storage modules 1, wherein the plurality of energy storage modules 1 are stacked from top to bottom;

[0044] Reference Figure 2 and Figure 3, the upper and lower sides of the multiple energy storage modules 1 are respectively provided with guide positioning parts 2 and guide grooves 3. In this embodiment, the guide positioning parts 2 are arranged at the top of the energy storage module 1, and the guide grooves 3 are arranged at the bottom of the energy storage module 1. The guide positioning parts 2 and the guide grooves 3 of two adjacent energy storage modules 1 are plug-connected. In this embodiment, the energy storage module 1 is provided with multiple guide positioning parts 2 and multiple guide grooves 3, and the guide positioning parts 2 and the guide grooves 3 are arranged one by one and plug-matched one by one;

[0045] It also includes an adsorption member 4, which fixes the guide positioning portion 2 in the guide groove 3;

[0046] During installation, multiple energy storage modules 1 are stacked from top to bottom in sequence. During stacking, the guide positioning parts 2 and the guide grooves 3 between adjacent energy storage modules 1 are connected by plugging to achieve the positioning and stacking of the energy storage modules 1, and the guide positioning parts 2 are fixed in the guide grooves 3 by the adsorption parts 4 to ensure the stable stacking of the energy storage modules 1;

[0047] The present application ensures the accurate positioning of the energy storage module 1 and avoids deviation or shaking during stacking through the precise plug-in connection between the guide positioning part 2 and the guide groove 3, as well as the fixing effect of the adsorption part 4; compared with the traditional bolt connection method, the stacking method of the energy storage device of the present application is simpler and faster, without the need to install bolts and handles one by one, reducing the assembly steps, saving stacking time, and improving stacking efficiency, thereby meeting the requirements of positioning accuracy and stacking efficiency in energy storage PACK stacking.

[0048] Reference Figure 4 , the adsorption member 4 includes a magnetic block 41. In the present embodiment, the adsorption member 4 is not limited to the magnetic block 41, and may also be other structures with an adsorption function, such as a suction cup, a magnetic steel sheet; the guide positioning portion 2 and the guide groove 3 are provided with a magnetic block 41, and are fixed by the magnetic block 41. In the present embodiment, the magnetic block 41 is embedded in the guide positioning portion 2, and the surface of the magnetic block 41 is flush with the surface of the guide positioning portion 2. The groove wall of the guide groove 3 is embedded with a magnetic block 41, and the surface of the magnetic block 41 is flush with the groove wall of the guide groove 3. When the guide positioning portion 2 is inserted into the guide groove 3, the magnetic block 41 on the guide positioning portion 2 will be fixed by the magnetic block 41 in the guide groove 3;

[0049] Reference Figure 2-4 When two energy storage modules 1 are stacked, the guide positioning part 2 is inserted into the guide groove 3, and the guide positioning part 2 and the magnetic block 41 in the guide groove 3 will attract each other and be fixed together to form a stable connection; the magnetic connection method is simple and effective, and no additional auxiliary tools or manpower are required to fix the energy storage module 1, and the assembly speed is significantly improved; and the magnetic block 41 provides a strong adsorption force, ensuring the stability of the energy storage module 1 during the stacking process, and the energy storage device can maintain a stable structure even in the case of vibration or other external interference.

[0050] Reference Figure 4 The top surface of the guide positioning portion 2 is set as a guide arc surface 21; the guide arc surface 21 can play a guiding role, making the assembly process smoother and more accurate; the smooth surface of the guide arc surface 21 can reduce the friction during assembly, making the relative movement between the components easier and smoother, reducing the friction and error during assembly, improving the quality and stability of assembly, and reducing the problems and defects caused by inaccurate assembly;

[0051] The bottom wall of the guide groove 3 is set to a matching arc surface, and the matching arc surface is in contact with the guide arc surface 21; when the guide positioning part 2 and the guide groove 3 are assembled, the design of the matching arc surface is utilized, and the contact and fit between the matching arc surface and the guide arc surface 21 can ensure the stable positioning between the guide groove 3 and the guide positioning part 2, prevent the displacement or loosening of the components after the assembly is completed, and improve the connection stability between the guide positioning part 2 and the guide groove 3, thereby improving the stacking stability between adjacent energy storage modules 1.

[0052] Reference Figure 2 and Figure 3 , the upper and lower sides of the energy storage module 1 are respectively provided with a first connector 5 and a second connector 6. In this embodiment, the first connector 5 is provided at the top of the energy storage module 1, and the second connector 6 is provided at the bottom of the energy storage module 1. The first connector 5 is inserted into the adjacent second connector 6, and the first connector 5 abuts against the second connector 6. In this embodiment, the first connector 5 and the second connector 6 include but are not limited to having conductive components provided therein to realize electrical connection between the two;

[0053] When stacking, the first connector 5 of the energy storage module 1 is inserted into the second connector 6 of the adjacent energy storage module 1 to ensure physical contact between the two connectors, and the first connector 5 forms a friction inside the second connector 6, so that the two modules can be tightly connected together, thereby improving the connection firmness of the two adjacent energy storage modules 1 and providing additional support and stability; in this process, during the plug-in process, an electrical connection can also be achieved between the first connector 5 and the second connector 6, which is achieved by the conductive components designed inside the connector, ensuring the transmission of electrical signals and energy between the energy storage modules 1, so that the energy storage system has higher overall stability, reliability and safety.

[0054] Reference Figure 5-7 , the first plug connector 5 and the second plug connector 6 are sealed by the first sealing member 7 and the second sealing member 8;

[0055] The first sealing member 7 includes a first sealing protrusion 71 provided on the first plug-in connector 5 and a sealing recess 72 provided on the second plug-in connector 6, wherein the sealing protrusion is inserted into the sealing recess 72 and contacts the sealing recess 72;

[0056] The second sealing member 8 includes a second sealing protrusion 81, the second sealing protrusion 81 abuts against the outer wall of the adjacent energy storage module 1, and the second sealing protrusion 81 is interference fit with the outer wall of the energy storage module 1;

[0057] When the energy storage modules 1 are stacked together, the first connector 5 is plugged into the second connector 6. At this time, the first sealing protrusion 71 of the first connector 5 is inserted into the sealing recess 72 of the second connector 6, and the sealing protrusion on the second connector 6 is abutted against the outer wall of the adjacent energy storage module 1. An interference fit is formed between the second sealing protrusion 81 and the outer wall of the energy storage module 1, forming a double sealing structure between the first connector 5 and the second connector 6. This design is relatively simple and does not require complex accessories or seals, which simplifies the design and manufacturing process and reduces costs and manufacturing difficulties. Moreover, since the first seal 7 and the second seal 8 are directly embedded in the first connector 5 and the second connector 6 instead of being attached to the outside, the sealing components are more durable and can withstand greater pressure and service life.

[0058] The double seal formed by the first seal 7 and the second seal 8 can effectively prevent the intrusion of the external environment and improve the protection function of the connection part. The stability of the sealing structure ensures the safety of the connection part, avoids safety hazards such as short circuit and leakage caused by external environmental factors, protects the connection part and improves the stability, safety and reliability of the energy storage system, and extends the service life of the energy storage system.

[0059] The implementation principle of the embodiment of the present application is as follows: the present application ensures accurate positioning of the energy storage module 1 through the precise plug-in connection between the guide positioning portion 2 and the guide groove 3, and the fixing effect of the adsorption member 4, thereby avoiding deviation or shaking during stacking; compared with the traditional bolt connection method, the stacking method of the energy storage device of the present application is simpler and faster, saving stacking time, improving stacking efficiency, and meeting the requirements of positioning accuracy and stacking efficiency in energy storage PACK stacking;

[0060] During installation, multiple energy storage modules 1 are stacked from top to bottom in sequence. During stacking, the guide positioning parts 2 and the guide grooves 3 between adjacent energy storage modules 1 are connected by plugging, and the guide positioning parts 2 are inserted into the guide grooves 3 to achieve the positioning and stacking of the energy storage modules 1. At this time, the guide positioning parts 2 and the magnetic blocks 41 in the guide grooves 3 attract each other and are fixed together to form a stable connection;

[0061] At the same time, the first connector 5 is inserted into the second connector 6 of the adjacent energy storage module 1, and the first connector 5 and the second connector 6 are electrically connected through the internal conductive components; when the first connector 5 is inserted into the second connector 6, the first sealing protrusion 71 of the first connector 5 is inserted into the sealing recess 72 of the second connector 6, and the sealing protrusion on the second connector 6 abuts against the outer wall of the adjacent energy storage module 1, and the second sealing protrusion 81 forms an interference fit with the outer wall of the energy storage module 1, forming a double sealing structure between the first connector 5 and the second connector 6;

[0062] The stacking installation of the entire energy storage device is completed; in this process, the double seal formed by the first seal 7 and the second seal 8 can effectively prevent the intrusion of the external environment and improve the protection function of the connection part. The stability of the sealing structure ensures the safety of the connection part, avoids safety hazards such as short circuit and leakage caused by external environmental factors, protects the connection part and improves the stability, safety and reliability of the energy storage system, and extends the service life of the energy storage system.

[0063] Embodiment 2

[0064] Reference Figure 8 and Fig. 9 The difference between this embodiment and the first embodiment is that the guide positioning portion 2 and the guide groove 3 are provided with screw holes 9, and the screw holes 9 of the guide positioning portion 2 are connected to the screw holes 9 of the guide groove 3;

[0065] When the guide positioning part 2 is inserted into the guide groove 3, the adsorption part 4 fixes the guide positioning part 2 in the guide groove 3. At this time, on the basis of adsorption fixation, secondary fixation can also be performed through the screw holes 9. The connected screw holes 9 allow the guide positioning part 2 and the guide groove 3 to be connected by screws, thereby strengthening the connection between them, making them more firm and stable, thereby improving the connection and fixation between two adjacent energy storage modules 1, and improving the stacking stability and safety of the entire energy storage device.

[0066] Embodiment 3

[0067] Reference Fig.10 , the difference between this embodiment and the first embodiment is that the energy storage module 1 is provided with a shock absorbing pad 10, and the shock absorbing pad 10 is located between two adjacent energy storage modules 1. In this embodiment, the shock absorbing pad 10 is arranged on the top of the energy storage module 1;

[0068] When the energy storage modules 1 are stacked, collision may occur between two adjacent energy storage modules 1. The shock-absorbing pad 10 is designed to be located between adjacent energy storage modules 1, so as to buffer and absorb the collision energy, thereby reducing the impact force and vibration during the collision and improving the reliability, durability and safety of the entire energy storage device.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An energy storage device, characterized in that: It includes a plurality of energy storage modules, which are stacked from top to bottom, and the upper and lower sides of the energy storage modules are respectively provided with guide positioning parts and guide grooves, and the guide positioning parts of adjacent energy storage modules are plug-connected with the guide grooves; it also includes an adsorption part, which fixes the guide positioning part in the guide groove.

2. The energy storage device according to claim 1, characterized in that: The adsorption member comprises a magnetic block, and the guide positioning portion and the guide groove are provided with the magnetic block and are fixed by adsorption of the magnetic block.

3. The energy storage device according to claim 1, characterized in that: The energy storage module is provided with a first plug-in component and a second plug-in component on the upper and lower sides respectively. The first plug-in component is inserted into the adjacent second plug-in component and abuts against the second plug-in component.

4. The energy storage device according to claim 3, characterized in that: The first plug connector and the second plug connector are sealed by a first sealing member and a second sealing member.

5. The energy storage device according to claim 4, characterized in that: The first sealing member includes a first sealing protrusion provided on the first plug-in connector and a sealing recess provided on the second plug-in connector, wherein the sealing protrusion is inserted into the sealing recess and contacts the sealing recess.

6. The energy storage device according to claim 4, characterized in that: The second sealing member includes a second sealing protrusion, the second sealing protrusion abuts against an outer wall of an adjacent energy storage module, and the second sealing protrusion is interference-fitted with the outer wall of the energy storage module.

7. The energy storage device according to claim 1, characterized in that: The guide positioning portion and the guide groove are provided with a screw hole communicating with each other.

8. The energy storage device according to claim 1, characterized in that: The guide positioning portion is provided with a guide arc surface.

9. The energy storage device according to claim 8, characterized in that: The guide groove is provided with a matching arc surface, and the matching arc surface is in contact with and fits with the guide arc surface.

10. The energy storage device according to claim 1, characterized in that: The energy storage module is provided with a shock absorbing pad, and the shock absorbing pad is located between two adjacent energy storage modules.

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