Support and energy storage device

Abstract

The application discloses a support and an energy storage device, and the support is used for stacking batteries and comprises a first corner limiting part and a second corner limiting part. The first corner limiting part is used for limiting a first corner of an upper layer battery. The second corner limiting part is connected with the first corner limiting part and oppositely arranged, and is used for limiting a second corner of a lower layer battery which is aligned with the first corner. The first corner of the upper layer battery and the second corner of the lower layer battery are simultaneously limited by the support, so that the two adjacent layers of batteries can be relatively fixed and are not prone to displacement, and the stacking stability and use reliability of the batteries are improved.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, specifically to a support structure and an energy storage device. Background Technology

[0002] Batteries need to be stacked in various scenarios. For example, a single battery has a limited voltage, so multiple batteries need to be stacked to increase the total voltage and the capacity of the energy storage device, allowing for series and parallel connections. Also, batteries need to be stacked to optimize space and facilitate transportation. Currently, battery stacking suffers from insufficient stability and poor reliability. Utility Model Content

[0003] The embodiments of this application provide a support frame and an energy storage device to at least partially solve the above-mentioned technical problems.

[0004] In a first aspect, embodiments of this application provide a support for stacking batteries. The support includes a first corner limiting part and a second corner limiting part. The first corner limiting part is used to limit a first corner of the upper battery. The second corner limiting part is connected to and opposite to the first corner limiting part, and the second corner limiting part is used to limit a second corner of the lower battery that is aligned with the first corner.

[0005] In one possible implementation, the first corner limiting portion includes a first bearing wall and a first side wall and a second side wall surrounding two adjacent edges of the first bearing wall. The first bearing wall is used to support the upper battery, and the first side wall and the second side wall have a first included angle corresponding to the first corner.

[0006] In one possible implementation, the first corner limiting part and the second corner limiting part are spaced apart along the height direction of the bracket.

[0007] In one possible implementation, the second corner limiting part includes a second bearing wall and a third side wall and a fourth side wall surrounding two adjacent edges of the second bearing wall. The second bearing wall is connected to the first bearing wall and is spaced apart along the height direction of the bracket. The second bearing wall is used to overlap with the lower battery. The fourth side wall and the third side wall have a second included angle corresponding to the second corner. The opening direction of the second included angle is the same as the opening direction of the first included angle.

[0008] The second sidewall is bent and connected to the first sidewall;

[0009] And / or, the fourth sidewall is bent and connected to the third sidewall. In one possible implementation, the bracket further includes a connecting wall, the upper end of which is bent and connected to the first bearing wall, and the lower end of which is bent and connected to the second bearing wall.

[0010] In one possible implementation, along the width direction of the first bearing wall, one end of the first bearing wall is bent and connected to the first side wall, and the other end is bent and connected to the connecting wall; and / or, along the width direction of the second bearing wall, one end of the second bearing wall is bent and connected to the third side wall, and the other end is bent and connected to the connecting wall.

[0011] In one possible implementation, the support further includes a support wall located between the first bearing wall and the second bearing wall, and angled to the connecting wall. The support wall is bent and connected to one end of the connecting wall along its length.

[0012] In one possible implementation, at least one of the first sidewall and the second sidewall is provided with a connecting hole, and at least one of the third sidewall and the fourth sidewall is provided with a connecting hole.

[0013] In one possible implementation, the bracket is formed by bending sheet metal multiple times.

[0014] Secondly, embodiments of this application provide an energy storage device, including a plurality of batteries and a plurality of supports provided in any of the embodiments of the first aspect. The batteries are rectangular, and the supports are used to stack the plurality of batteries along the height direction. The plurality of batteries include adjacent upper batteries and lower batteries. Four supports are provided between the upper batteries and the lower batteries. The four supports support and limit the four corners of the upper batteries and limit the four corners of the lower batteries.

[0015] The beneficial effects of the embodiments of this application are as follows:

[0016] In the embodiments of this application, the bracket is used to simultaneously limit the first corner of the upper battery and the second corner of the lower battery. As a result, the two adjacent battery layers can be relatively fixed and are not prone to displacement, which helps to improve the stacking stability and reliability of the batteries. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0018] Figure 1 A schematic diagram of the structure of the bracket provided in some embodiments of this application from a first-view perspective;

[0019] Figure 2A schematic diagram of the structure of the bracket provided in some embodiments of this application from a second perspective;

[0020] Figure 3 A schematic diagram of the structure of an energy storage device provided for some embodiments of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100 - Energy storage device;

[0023] 10-Staff;

[0024] 11-First load-bearing wall;

[0025] 12 - Second load-bearing wall;

[0026] 13-First sidewall; 131-First material reduction notch;

[0027] 14 - Second sidewall;

[0028] 15-Third sidewall; 151-Second material reduction notch;

[0029] 16-Fourth sidewall;

[0030] 17-Connecting wall;

[0031] 18-Supporting wall;

[0032] 21-First corner limiting part;

[0033] 22-Second corner limiting part;

[0034] 23 - First connecting hole;

[0035] 24 - Second connecting hole;

[0036] 30-battery;

[0037] 31-Upper battery; 311-First corner;

[0038] 32 - Lower battery; 321 - Second corner. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0040] Reference Figures 1 to 3 , Figure 1A schematic diagram of the structure of the bracket 10 provided in some embodiments of this application from a first perspective; Figure 2 A schematic diagram of the support 10 provided in some embodiments of this application from a second perspective; Figure 3 A schematic diagram of the structure of an energy storage device 100 provided for some embodiments of this application.

[0041] In a first aspect, embodiments of this application provide a support 10 for stacking batteries 30, such that multiple batteries 30 can be stacked from bottom to top.

[0042] The bracket 10 includes a first corner limiting part 21 and a second corner limiting part 22. The second corner limiting part 22 is connected to and opposite to the first corner limiting part 21. The first corner limiting part 21 is used to limit the first corner 311 of the upper battery 31, and the second corner limiting part 22 is used to limit the second corner 321 of the lower battery 32 that is aligned with the first corner 311.

[0043] For example, the first corner limiting part 21 and the second corner limiting part 22 are arranged along the height direction, with the first corner limiting part 21 located above and the second corner limiting part 22 located below, and the second corner limiting part 22 extending in the opposite direction to the first corner limiting part 21.

[0044] It is understood that the number of supports 10 can vary depending on the shape of the battery 30. While ensuring the stacking stability of the batteries 30, supports 10 can be provided at all corners of the battery 30, or supports 10 can be provided at some corners of the battery 30. For example, as... Figure 3 As shown, the battery 30 is a cuboid. The bottom of the upper battery 31 has four first corners 311, and the top of the lower battery 32 has four second corners 321 corresponding to the upper battery 31. Each layer is provided with four supports 10, and each support 10 can simultaneously limit the first corners 311 of the upper battery 31 and the second corners 321 of the lower battery 32.

[0045] In this embodiment, the bracket 10 simultaneously limits the first corner 311 of the upper battery 31 and the second corner 321 of the lower battery 32. As a result, the two adjacent battery layers 30 can be relatively fixed and are not prone to displacement, which helps to improve the stacking stability and reliability of the battery 30.

[0046] Reference Figure 1 and Figure 2 In some embodiments, the first corner limiting part 21 and the second corner limiting part 22 are symmetrically arranged about the center line of the height direction of the bracket 10.

[0047] For example, the center line of the support 10 in the width direction extends in the horizontal direction, and the first corner limiting part 21 and the second corner limiting part 22 are symmetrical vertically.

[0048] In this embodiment, the bracket 10 is designed as a symmetrical structure, which not only facilitates the installation and positioning of the bracket 10, but also improves the consistency of the product, thereby improving the stacking stability and production efficiency of the battery 30.

[0049] Reference Figure 2 In some embodiments, the first corner limiting part 21 includes a first bearing wall 11 and a first side wall 13 and a second side wall 14 surrounding two adjacent edges of the first bearing wall 11. The first bearing wall 11 is used to support the upper battery 31, and the first side wall 13 and the second side wall 14 have a first included angle corresponding to the first corner 311.

[0050] It is understood that the first included angle corresponds to the first corner 311. If the first corner 311 is an obtuse angle, then the first included angle is also an obtuse angle; if the first corner 311 is an acute angle, then the first included angle is also an acute angle. For example, if the first corner 311 is a right angle, then correspondingly, the first included angle is also a right angle. In this case, the first sidewall 13 is perpendicular to the second sidewall 14.

[0051] For example, the first bearing wall 11 is horizontally arranged, and the first side wall 13 and the second side wall 14 extend along the height direction.

[0052] The first sidewall 13 and the second sidewall 14 can be connected to each other or can be spaced apart along the edge of the first bearing wall 11.

[0053] In some embodiments, the thickness direction of the first sidewall 13 and the thickness direction of the second sidewall 14 are both perpendicular to the thickness direction of the first supporting wall 11. This arrangement facilitates the assembly of the first corner 311 of the upper battery 31 into the first corner limiting part 21.

[0054] In some embodiments, the first corner limiting part 21 and the second corner limiting part 22 are spaced apart along the height direction of the bracket 10.

[0055] In this embodiment of the application, by setting the first corner limiting part 21 and the second corner limiting part 22 at intervals, a heat dissipation channel can be formed between the upper battery 31 and the lower battery 32, increasing the contact area between the upper battery 31 and the lower battery 32 and the air, improving the heat dissipation efficiency of the battery 30, and thus extending the cycle life of the battery 30.

[0056] In some embodiments, the second corner limiting part 22 includes a second bearing wall 12 and a third side wall 15 and a fourth side wall 16 surrounding two adjacent edges of the second bearing wall 12. The second bearing wall 12 is connected to the first bearing wall 11 and is spaced apart along the height direction of the bracket 10. The second bearing wall 12 is used to overlap with the lower battery 32. The fourth side wall 16 and the third side wall 15 have a second included angle corresponding to the second corner 321. The opening direction of the second included angle is the same as the opening direction of the first included angle.

[0057] It is understood that the second included angle corresponds to the second corner 321. If the second corner 321 is an obtuse angle, then the second included angle is also an obtuse angle; if the second corner 321 is an acute angle, then the second included angle is also an acute angle. For example, if the second corner 321 is a right angle, then correspondingly, the second included angle is also a right angle. In this case, the third sidewall 15 is perpendicular to the fourth sidewall 16.

[0058] For example, the second support wall 12 is horizontally arranged, and the third side wall 15 and the fourth side wall 16 extend along the height direction.

[0059] The third sidewall 15 and the fourth sidewall 16 can be connected to each other or spaced apart along the edge of the second bearing wall 12.

[0060] In some embodiments, the thickness direction of the third sidewall 15 and the thickness direction of the fourth sidewall 16 are both perpendicular to the thickness direction of the second support wall 12. This arrangement facilitates the assembly of the second corner 321 of the lower battery 32 into the second corner limiting part 22.

[0061] In some embodiments, the distance between the second bearing wall 12 and the first bearing wall 11 is H, which satisfies 20mm≤H≤50mm.

[0062] If the distance between the second support wall 12 and the first support wall 11 is too large, the heat dissipation channel between the upper battery 31 and the lower battery 32 will be too large, resulting in increased space occupation. If the distance between the second support wall 12 and the first support wall 11 is too small, the heat dissipation channel between the upper battery 31 and the lower battery 32 will be insufficient, which is not conducive to heat dissipation of the battery 30. Therefore, setting the distance between the second support wall 12 and the first support wall 11 between 20mm and 50mm can balance space utilization and heat dissipation efficiency of the battery 30.

[0063] For example, H can be 20mm, 24mm, 30mm, 33mm, 37mm, 42mm, 45mm, 48mm, 50mm and any value in between.

[0064] In some embodiments, the bracket 10 further includes a connecting wall 17, the upper end of which is bent and connected to the first bearing wall 11, and the lower end of which is bent and connected to the second bearing wall 12.

[0065] In some embodiments, two connecting walls 17 are provided (not shown in the figure), and the two connecting walls 17 are spaced apart along the thickness direction of the support 10. A closed cavity is defined between the first bearing wall 11, the second bearing wall 12 and the two connecting walls 17 to separate the first bearing wall 11 and the second bearing wall 12.

[0066] In other embodiments, an open cavity may also be defined between the first support wall 11 and the second support wall 12 to space the first support wall 11 and the second support wall 12 apart. For example... Figure 1 and Figure 2 As shown, along the width direction of the first bearing wall 11, one end of the first bearing wall 11 is bent and connected to the first side wall 13, and the other end is bent and connected to the connecting wall 17. Along the width direction of the second bearing wall 12, one end of the second bearing wall 12 is bent and connected to the third side wall 15, and the other end is bent and connected to the connecting wall 17. This arrangement satisfies the structural strength requirements of the bracket 10 while saving material and reducing its weight.

[0067] For example, the first bearing wall 11, the connecting wall 17, and the second bearing wall 12 are connected in sequence to form a U-shape.

[0068] For example, the first bearing wall 11 and the second bearing wall 12 are parallel to each other.

[0069] In some embodiments, the second sidewall 14 is bent and connected to the first sidewall 13. This configuration can improve the connection stability between the first sidewall 13 and the second sidewall 14, and improve the structural strength of the bracket 10.

[0070] In some embodiments, the fourth sidewall 16 is bent and connected to the third sidewall 15. This arrangement can improve the connection stability between the third sidewall 15 and the fourth sidewall 16, and improve the structural strength of the bracket 10.

[0071] In some embodiments, the bracket 10 further includes a support wall 18, which is located between the first bearing wall 11 and the second bearing wall 12 and is angled to the connecting wall 17.

[0072] It is understood that the support wall 18 is supported between the first bearing wall 11 and the second bearing wall 12 to reduce the risk of deformation of the first bearing wall 11 and the second bearing wall 12 and improve the structural strength of the bracket 10.

[0073] The support wall 18 can be located in the middle of the length direction of the bracket 10 or at one end of the length direction of the bracket 10.

[0074] In some embodiments, along the length of the connecting wall 17, the support wall 18 is bent and connected to one end of the connecting wall 17. This arrangement allows the bracket 10 to be formed by bending sheet metal parts, thereby reducing the manufacturing difficulty of the bracket 10.

[0075] In some embodiments, at least one of the first sidewall 13, the second sidewall 14, the third sidewall 15, and the fourth sidewall 16 is provided with a connection hole, and at least one battery 30 is provided with a mounting hole corresponding to the connection hole. With this configuration, after the upper battery 31 and the lower battery 32 are stacked via the bracket 10, the bracket 10 can be connected to at least one battery 30 by means of connectors passing through the connection hole and the mounting hole, thereby improving the stacking stability of the batteries 30.

[0076] The connecting parts can be structural components such as screws, bolts, and locating pins.

[0077] In some embodiments, the first sidewall 13 and the third sidewall 15 are provided with connection holes, while the second sidewall 14 and the fourth sidewall 16 are not provided with connection holes. This configuration not only improves the stacking stability of the batteries 30 but also reduces the adverse effects of openings on the strength of the support 10.

[0078] In some embodiments, the battery 30 includes an adjacent first side and a second side, the area of ​​the first side being larger than the area of ​​the second side. After the batteries 30 are stacked, the first sidewall 13 and the third sidewall 15 are attached to the first side of the battery 30, the second sidewall 14 and the fourth sidewall 16 are attached to the second side of the battery 30, and the first sidewall 13 and the third sidewall 15 are provided with connection holes.

[0079] Since the first side is larger and the second side is narrower, providing mounting holes on the first side can reduce the adverse effects of the openings on the structural strength of the battery 30. In this embodiment, by providing connecting holes on the first sidewall 13 and the third sidewall 15, it is convenient to align the connecting holes on the first sidewall 13 and the third sidewall 15 with the mounting holes provided on the first side of the battery 30.

[0080] Reference Figure 1 and Figure 2 In some embodiments, the first sidewall 13 is provided with a first material reduction notch, and the third sidewall 15 is provided with a second material reduction notch 151.

[0081] Since the first sidewall 13 and the third sidewall 15 of the bracket 10 are mainly used to limit the battery 30, and the load-bearing capacity mainly relies on the first bearing wall 11, the second bearing wall 12, and the connecting wall 17, the area of ​​the first sidewall 13 and the third sidewall 15 has a relatively small effect on improving the strength of the bracket 10. In this embodiment, by providing a first material reduction notch in the first sidewall 13 and a second material reduction notch 151 in the third sidewall 15, the weight of the bracket 10 can be reduced, and the first sidewall 13 and the third sidewall 15 can be made to fit the side of the battery 30.

[0082] In some embodiments, the bracket 10 is formed by bending sheet metal multiple times. The bracket 10 made by bending sheet metal multiple times has the advantages of high structural strength, high processing efficiency and low cost, flexible design and strong adaptability, and easy surface treatment.

[0083] In some embodiments, the thickness of the sheet metal part is between 2 mm and 3 mm.

[0084] In some embodiments, the thickness of the sheet metal part is 2.5 mm.

[0085] Reference Figure 3 Secondly, embodiments of this application provide an energy storage device 100, including a plurality of batteries 30 and a plurality of supports 10 provided in any embodiment of the first aspect. The batteries 30 are rectangular, and the supports 10 are used to stack the plurality of batteries 30 along the height direction. The plurality of batteries 30 include adjacent upper batteries 31 and lower batteries 32. Four supports 10 are disposed between the upper batteries 31 and the lower batteries 32. The four supports 10 support and limit the four corners of the upper batteries 31 and limit the four corners of the lower batteries 32.

[0086] In this embodiment, multiple supports 10 define the degrees of freedom of the battery 30 in different directions, thereby integrating and fixing multiple layers of batteries 30 to complete the stacking of batteries 30. The supports 10 have a simple structure, high compatibility, and can be applied to batteries 30 of different sizes, and help improve the disassembly and stacking efficiency of the energy storage device 100.

[0087] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0090] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A support, characterized in that, For stacking batteries, the support includes: The first corner limiting part is used to limit the first corner of the upper battery; The second corner limiting part is connected to and opposite to the first corner limiting part, and the second corner limiting part is used to limit the second corner of the lower battery that is aligned with the first corner.

2. The bracket according to claim 1, characterized in that, The first corner limiting part includes a first bearing wall and a first side wall and a second side wall surrounding two adjacent edges of the first bearing wall. The first bearing wall is used to support the upper battery. The first side wall and the second side wall have a first included angle corresponding to the first corner.

3. The bracket according to claim 2, characterized in that, The first corner limiting part and the second corner limiting part are spaced apart along the height direction of the bracket.

4. The bracket according to claim 3, characterized in that, The second corner limiting part includes a second bearing wall and a third side wall and a fourth side wall surrounding two adjacent edges of the second bearing wall. The second bearing wall is connected to the first bearing wall and is spaced apart along the height direction of the bracket. The second bearing wall is used to overlap with the lower battery. The fourth side wall and the third side wall have a second included angle corresponding to the second corner. The opening direction of the second included angle is the same as the opening direction of the first included angle. The second sidewall is bent and connected to the first sidewall; And / or, The fourth sidewall is bent and connected to the third sidewall.

5. The bracket according to claim 4, characterized in that, The support also includes: A connecting wall, the upper end of which is bent and connected to the first bearing wall, and the lower end of which is bent and connected to the second bearing wall.

6. The bracket according to claim 5, characterized in that, Along the width direction of the first supporting wall, one end of the first supporting wall is bent and connected to the first side wall, and the other end is bent and connected to the connecting wall; and / or, Along the width direction of the second bearing wall, one end of the second bearing wall is bent and connected to the third side wall, and the other end is bent and connected to the connecting wall.

7. The bracket according to claim 5, characterized in that, The bracket also includes a support wall, which is located between the first bearing wall and the second bearing wall and is set at an angle to the connecting wall. Along the length of the connecting wall, the support wall is bent and connected to one end of the connecting wall.

8. The bracket according to claim 4, characterized in that, At least one of the first sidewall and the second sidewall is provided with a connecting hole, and at least one of the third sidewall and the fourth sidewall is provided with a connecting hole.

9. The stent according to any one of claims 1-8, characterized in that, The bracket is formed by bending sheet metal parts multiple times.

10. An energy storage device, characterized in that, The device includes multiple batteries and multiple supports as described in any one of claims 1-9, wherein the batteries are rectangular, the supports are used to stack the multiple batteries along the height direction, the multiple batteries include adjacent upper batteries and lower batteries, four supports are provided between the upper batteries and the lower batteries, the four supports support and limit the four corners of the upper batteries, and limit the four corners of the lower batteries.

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