Energy storage battery pack, battery system, and electrical device

Abstract

The present application belongs to the technical field of energy storage, and relates to an energy storage battery pack, a battery system, and an electrical device. The energy storage battery pack comprises a module and an interlocking assembly. The interlocking assembly comprises a first connecting member and a second connecting member rotatably connected to the first connecting member. The first connecting member is mounted on the module, and the second connecting member is suitable for being connected to a module of another energy storage battery pack. The alignment and locking of the energy storage battery pack are easier to achieve, so that scratching of the energy storage battery pack can be prevented, thereby ensuring an attractive appearance and preventing an effect on the corrosion resistance of the energy storage battery pack.

Description

Energy storage battery packs, battery systems and electrical equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410540283.2, filed on April 26, 2024, entitled “Energy Storage Battery Pack, Battery System and Electrical Equipment”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of energy storage technology, and in particular to an energy storage battery pack, battery system, and electrical equipment. Background Technology

[0004] When battery boxes are stacked, an interlocking structure is usually required to align and fix adjacent boxes.

[0005] Existing interlocking structures mostly use a single locking plate. When aligning and fixing, the boxes are first stacked, and then one end of the locking plate is connected to the upper box and the other end is connected to the lower box. However, this interlocking structure is difficult to align and lock. Summary of the Invention

[0006] The technical problem to be solved by this application is to provide an energy storage battery pack, a battery system, and an electrical device, addressing the technical problem of difficult alignment and locking of existing interlocking structures.

[0007] To address the aforementioned technical problems, in a first aspect, this application discloses an energy storage battery pack, including a module and an interlocking assembly. The interlocking assembly includes a first connector and a second connector rotatably connected to the first connector. The first connector is mounted on the module, and the second connector is adapted to connect to a module of another energy storage battery pack.

[0008] According to the energy storage battery pack of this application, when interlocking two adjacent energy storage battery packs, the assembly of a single energy storage battery pack can be completed first. After the first connector of the single energy storage battery pack is assembled with the module, the second connector of one energy storage battery pack is rotated so that the second connector can connect with the module of the other energy storage battery pack, thereby achieving interlocking of the two energy storage battery packs. Due to the flip-out nature of the second connector, the alignment and locking between energy storage battery packs is easier, and the overall structure is stable and reliable after interlocking. It also avoids scratches on the energy storage battery packs, ensures an aesthetically pleasing appearance, and avoids affecting the corrosion resistance of the energy storage battery packs.

[0009] Optionally, the module is adapted to be stacked with another module of the energy storage battery pack, and the first connector is mounted on the side surface of the module facing the other module of the energy storage battery pack.

[0010] Optionally, the module is provided with a recess suitable for accommodating the first connector.

[0011] Optionally, the settling tank and the first connecting member are respectively disposed on opposite sides of the module.

[0012] Optionally, the module is further provided with a recessed platform suitable for connection with a second connector of another energy storage battery pack.

[0013] Optionally, the recessed platform is located on the side of the module away from the first connector.

[0014] Optionally, the settling platform can be connected to the settling tank.

[0015] Optionally, the recessed platform is recessed towards the center of the module, and the recessed platform is adapted to accommodate the second connector connected thereto.

[0016] Optionally, the module has a first surface, a second surface disposed opposite to the first surface, and a side surface connected between the first surface and the second surface;

[0017] The first connector is mounted on the first surface;

[0018] The second connector is adapted to be connected to the side of another module of the energy storage battery pack.

[0019] Optionally, the sink is disposed on the second surface, and the sink platform is disposed on the side of the side closest to the second surface.

[0020] Optionally, a first fixing member is provided at the position on the module where it is connected to the first connector, and the interlocking assembly further includes a first locking member, which cooperates with the first fixing member to install the first connector on the module;

[0021] And / or, the module is provided with a second fixing member at a position suitable for connection with a second connector of another energy storage battery pack, and the interlock assembly further includes a second locking member, the second fixing member being adapted to cooperate with the second locking member to enable the module to be connected with the second connector of another energy storage battery pack.

[0022] Optionally, the first connector includes a first sealing nut post, which is mounted on the module;

[0023] The first locking element includes a first locking bolt;

[0024] The first connector is provided with a first connecting hole through which the first locking bolt passes, and the first locking bolt passes through the first connecting hole and is threadedly connected to the first sealing nut.

[0025] Optionally, multiple first connecting holes, multiple first sealing nut posts, and multiple first locking bolts are provided;

[0026] Each of the first connecting holes is provided in a one-to-one correspondence with a plurality of the first locking bolts, and each of the first locking bolts is provided in a one-to-one correspondence with a first sealing nut post;

[0027] The second connecting hole is provided in multiple ways, the second sealing nut post is provided in multiple ways, and the second locking bolt is provided in multiple ways;

[0028] Multiple second connecting holes are provided in a one-to-one correspondence with multiple second locking bolts, and multiple second locking bolts are provided in a one-to-one correspondence with multiple second sealing nut posts.

[0029] Optionally, the interlocking assembly further includes a rotating shaft, through which the first connector and the second connector are rotatably connected.

[0030] Optionally, the rotating shaft is housed within a trough of another of the energy storage battery packs.

[0031] Optionally, the module is a battery housing, a base, or a power management system.

[0032] Optionally, the first connector includes a first hinge piece, and the second connector includes a second hinge piece, with the first hinge piece and the second hinge piece being rotatably connected.

[0033] Secondly, this application discloses a battery system that includes the aforementioned energy storage battery pack.

[0034] Optionally, multiple energy storage battery packs are provided, and the multiple energy storage battery packs are stacked sequentially;

[0035] Between two adjacent energy storage battery packs, the second connector of one of the energy storage battery packs is connected to the module of the other energy storage battery pack.

[0036] Thirdly, this application discloses an electrical device that includes the aforementioned energy storage battery pack or the aforementioned battery system. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0038] Figure 1 is a schematic diagram of an energy storage battery pack provided in an embodiment of this application;

[0039] Figure 2 is an enlarged schematic diagram of the interlocking component in Figure 1;

[0040] Figure 3 is an enlarged schematic diagram of Figure 1 at the settling tank;

[0041] Figure 4 is a schematic diagram of a battery system provided in an embodiment of this application;

[0042] Figure 5 is a cross-sectional view of section AA in Figure 4;

[0043] Figure 6 is a cross-sectional view of section BB in Figure 4.

[0044] The reference numerals in the attached drawings are as follows: 1. First housing; 2. Second housing; 3. Interlocking assembly; 31. First connector; 311. First connecting hole; 32. Second connector; 321. Second connecting hole; 33. First locking bolt; 34. Second locking bolt; 35. Rotating shaft; 4. Sink; 5. Sinking platform; 6. First sealing nut post; 7. Second sealing nut post; 10. First surface; 20. Second surface; 30. Side. Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0046] As shown in Figures 1 to 6, the battery system provided in this application embodiment includes two energy storage battery packs, which are stacked along the height direction.

[0047] The energy storage battery pack includes a module and an interlocking component 3. The interlocking component 3 includes a first connector 31 and a second connector 32 rotatably connected to the first connector 31. The first connector 31 is mounted on the module, and the second connector 32 is adapted to be connected to a module of another energy storage battery pack.

[0048] The battery system provided in this application embodiment allows for the pre-assembly of individual battery packs when interlocking two energy storage battery packs. After the first connector 31 of a single battery pack is assembled with the module, the second connector 32 of one of the battery packs is rotated to connect with the module of the second module, thus achieving interlocking between the two battery packs. Due to the flip-out nature of the second connector 32, alignment and locking between the battery packs are easier, ensuring the stability and reliability of the overall structure after interlocking. This avoids scratches on the battery packs, maintains an aesthetically pleasing appearance, and prevents any impact on the corrosion resistance of the battery packs.

[0049] In other embodiments not shown in the figure, the two energy storage battery packs may also be stacked in other directions, such as horizontally or diagonally.

[0050] In the embodiments shown in Figures 1 to 6, the first connector 31 includes a first hinge piece, and the second connector 32 includes a second hinge piece. The first hinge piece and the second hinge piece are rotatably connected to realize relative rotation between the first connector 31 and the second connector 32.

[0051] In the embodiments shown in Figures 1 to 6, each module of the energy storage battery pack is a battery housing. For ease of explanation, the two energy storage battery packs are defined as a first battery pack and a second battery pack, respectively. The module of the first battery pack is a first housing 1, and the module of the second battery pack is a second housing 2.

[0052] At this time, the first battery pack includes a first housing 1 and the interlocking assembly 3, and the second battery pack includes a second housing 2 and the interlocking assembly 3. The second connector 32 of the first battery pack is adapted to connect to the second housing 2 of the second battery pack.

[0053] In one embodiment, as shown in Figures 1 to 3, the first housing 1 is located below the second housing 2.

[0054] During stacking interlocking, the second connector 32 of the first battery pack is first unfolded outward (at this time, the angle between the first connector 31 and the second connector 32 of the first battery pack is greater than 90°, for example, the angle between the first connector 31 and the second connector 32 of the first battery pack is 180°), thereby allowing the second connector 32 of the first battery pack to avoid the second housing 2. Then, the second housing 2 is stacked on top of the first housing 1. After stacking is complete, the second connector 32 of the first battery pack is flipped so that it can connect to the second housing 2, achieving stacking interlocking between the two housings.

[0055] In other embodiments not shown in the figures, the first housing may be positioned above the second housing. In this case, the second connector of the first battery pack will fall due to gravity, making it more difficult to connect the second connector of the first battery pack to the second housing.

[0056] In one embodiment, as shown in Figures 2, 5 and 6, the first connector 31 is installed on the side surface of the first housing 1 near the second housing 2, that is, the first connector 31 is installed on the stacking surface of the first housing 1 and the second housing 2 (refer to the first surface 10 in Figure 2), thereby realizing the installation of the first connector 31 and the first housing 1.

[0057] In one embodiment, as shown in Figures 3, 5, and 6, the module is provided with a recess 4 suitable for accommodating the first connector 31. That is, the first housing 1 and the second housing 2 are respectively provided with recesses 4 suitable for accommodating the first connector 31.

[0058] The recess 4 provides space for the first connector 31, ensuring that the first box 1 and the second box 2 fit together stably when stacked. As shown in Figures 1 to 3, the second box 2 is stacked on top of the first box 1. At this time, the bottom plate of the second box 2 is directly attached to the top plate of the first box 1.

[0059] In one embodiment, as shown in FIG1, in the same energy storage battery pack, the sink 4 and the first connector 31 are located on opposite sides of the module. In this case, the sink 4 is adapted to accommodate the first connector 31 of another energy storage battery pack.

[0060] Taking the embodiments shown in Figures 5 and 6 as examples, when the first box 1 and the second box 2 are stacked, the first connector 31 on the first box 1 will be accommodated in the groove 4 on the second box 2 to ensure that the first box 1 and the second box 2 fit together stably after being stacked.

[0061] In other embodiments not shown in the figures, the sink and the first connector may be located on the same side of the module within the same energy storage battery pack. In this case, the sink will directly accommodate the first connector on the corresponding module. That is, the first connector on the first housing will be accommodated in the sink on the first housing, and the first connector on the second housing will be accommodated in the sink on the second housing, ensuring that the first housing and the second housing fit together stably after being stacked.

[0062] In one embodiment, as shown in Figures 3, 5, and 6, the module (the first housing 1 or the second housing 2) is further provided with a recessed platform 5 suitable for connection with a second connector 32 of another energy storage battery pack. That is, the first housing 1 and the second housing 2 are respectively provided with recessed platforms 5, and the second connector 32 of the first battery pack can be connected to the recessed platform 5 on the second housing 2, thereby realizing the connection between the second connector 32 of the first battery pack and the second housing 2.

[0063] In one embodiment, as shown in Figures 5 and 6, the recessed platform 5 is adapted to accommodate the second connecting member 32 connected thereto. That is, the second connecting member 32 of the first battery pack can be accommodated within the recessed platform 5 of the second housing 2, preventing the interlocking assembly 3 from protruding outward, thereby ensuring that the interlocking assembly 3 is flush with the outer wall of the second housing 2, resulting in a simple and aesthetically pleasing appearance.

[0064] In one embodiment, as shown in Figures 1, 5 and 6, the first housing 1 and the second housing 2 each have a first surface 10, a second surface 20 disposed opposite to the first surface 10, and a side surface 30 connecting the first surface 10 and the second surface 20.

[0065] The first surface 10 of the first housing 1 is adapted to be in contact with the second surface 20 of the second housing 2 so that the two energy storage battery packs can be stacked together.

[0066] In one embodiment, as shown in Figures 1, 2, 5, and 6, the first connector 31 of the first battery pack is mounted on the first surface 10 of the first housing 1. The first connector 31 of the second battery pack is mounted on the first surface 10 of the second housing 2. The second connector 32 of the first battery pack is adapted to connect to the side 30 of the second housing 2, thereby realizing the connection between the two energy storage battery packs.

[0067] In one embodiment, as shown in Figures 1, 3, 5 and 6, the recess 4 of the first box 1 is disposed on the second surface 20 of the first box 1, and the recess 5 of the first box 1 is disposed on the side 30 of the first box 1 near the second surface 20 of the first box 1, forming the structure of the first box 1.

[0068] The sink 4 of the second box 2 is disposed on the second surface 20 of the second box 2, and the sink platform 5 of the second box 2 is disposed on the side 30 of the second box 2 near the second surface 20 of the second box 2, forming the structure of the second box 2.

[0069] By bringing the first surface 10 of the first housing 1 into contact with the second surface 20 of the second housing 2, the first connector 31 of the first battery pack into the recess 4 of the second housing 2, and the second connector 32 of the first battery pack into the recess 5 of the second housing 2, the bonding and connection between the two energy storage battery packs are achieved.

[0070] In one embodiment, as shown in Figures 3, 5 and 6, on the same module (the first housing 1 or the second housing 2), the recessed platform 5 is connected to the recessed groove 4, thereby housing the interlocking component 3 entirely in the recessed platform 5 and the recessed groove 4. This ensures that the first housing 1 and the second housing 2 fit together stably after being stacked, while also making the interlocking component 3 flush with the side wall of the second housing 2, resulting in a simple and beautiful appearance.

[0071] In one embodiment, the first housing 1 can be welded at the connection between the platform 5 and the trough 4, so that the first housing 1 forms a whole for waterproofing. The second housing 2 can be welded at the connection between the platform 5 and the trough 4, so that the second housing 2 forms a whole for waterproofing.

[0072] In one embodiment, as shown in Figures 2, 5, and 6, a first fixing member is provided at the position on the module (first housing 1 or second housing 2) where it connects to the first connector 31. The interlocking assembly 3 further includes a first locking member, which cooperates with the first fixing member to install the first connector 31 on the corresponding module, thereby realizing the installation between the first connector 31 and the corresponding module.

[0073] In one embodiment, as shown in Figures 2, 5, and 6, the first fixing member includes a first sealing nut post 11, which is press-fitted onto the corresponding module. The first locking member includes a first locking bolt 33.

[0074] The first connector 31 is provided with a first connecting hole 311 through which the first locking bolt 33 passes. The first locking bolt 33 passes through the first connecting hole 311 and is threadedly connected to the first sealing nut post 11, thereby installing the first connector 31 on the corresponding module.

[0075] The first connector 31 is connected to the corresponding module by the first locking bolt 33 and the first sealing nut post 11, so that the overall structure can meet the dustproof and waterproof requirements of IP65 and above.

[0076] In one embodiment, multiple first connecting holes 311, multiple first sealing nut posts 11, and multiple first locking bolts 33 are provided.

[0077] Multiple first connecting holes 311 are provided in a one-to-one correspondence with multiple first locking bolts 33, and multiple first locking bolts 33 are provided in a one-to-one correspondence with multiple first sealing nut posts 11.

[0078] The first connector 31 is fixed to the first housing 1 by a plurality of first locking bolts 33, which improves the structural stability between the first connector 31 and the corresponding module and enhances the structural strength.

[0079] In one embodiment, as shown in Figures 3, 5, and 6, a second fixing member is provided on the module at a position suitable for connection with the second connector 32 of another energy storage battery pack. The interlocking assembly 3 further includes a second locking member, which is adapted to cooperate with the second locking member to connect the module to the second connector 32 of another energy storage battery pack, thereby realizing the installation of the second connector 32 and the module of the other energy storage battery pack.

[0080] Taking the illustrated embodiment as an example, the first housing 1 and the second housing 2 are respectively provided with the second fixing member. When connected, the second locking member of the first battery pack will be connected with the second fixing member on the second housing 2, thereby realizing the installation between the second connecting member 32 of the first battery pack and the second housing 2.

[0081] In one embodiment, as shown in Figures 3, 5 and 6, the second fastener includes a second sealing nut post 23, which is press-fitted onto the second housing 2.

[0082] The second locking element includes a second locking bolt 34.

[0083] The second connector 32 is provided with a second connecting hole 34 through which the second locking bolt 34 passes. The second locking bolt 34 passes through the second connecting hole 34 and is threadedly connected to the second sealing nut post 23, so that the second connector 32 of the first battery pack can be installed on the second housing 2.

[0084] The second connector 32 of the first battery pack is connected to the second housing 2 by the second locking bolt 34 and the second sealing nut 23, so that the overall structure can meet the dustproof and waterproof requirements of IP65 and above.

[0085] In one embodiment, as shown in FIG6, the second connecting hole 34 is an elongated hole extending in a direction close to or away from the first connector 31.

[0086] By making the second connecting hole 34 an elongated hole, assembly tolerances in the stacking direction of the housings can be absorbed.

[0087] In one embodiment, multiple second connecting holes 34 are provided, multiple second sealing nut posts 23 are provided, and multiple second locking bolts 34 are provided.

[0088] Multiple second connecting holes 34 are provided in a one-to-one correspondence with multiple second locking bolts 34, and multiple second locking bolts 34 are provided in a one-to-one correspondence with the second sealing nut post 23.

[0089] The second connector 32 of the first battery pack is fixed to the second housing 2 by a plurality of second locking bolts 34. When the second housing 2 is tilted relative to the stacking direction, the shear torque on a single second locking bolt 34 is smaller, thereby making the connection between the second connector 32 of the first battery pack and the second housing 2 more stable and reliable, and improving the structural strength.

[0090] In one embodiment, as shown in Figures 2, 5 and 6, the interlocking assembly 3 further includes a rotating shaft 35, through which the first connecting member 31 and the second connecting member 32 are rotatably connected, so that the second connecting member 32 can rotate relative to the first connecting member 31.

[0091] In one embodiment, as shown in Figures 5 and 6, the rotating shaft 35 is housed in the sink 4 of another energy storage battery pack, ensuring that the interlocking assembly 3 is flush with the outer wall of the second housing 2, resulting in a simple and aesthetically pleasing appearance.

[0092] In other embodiments not shown in the figures, the module may also be a base or a power management system. The modules for the two energy storage battery packs in the battery system may also be a battery housing and a base, or a battery housing and a power management system, or a base and a power management system, or a battery housing and a battery housing, or a base and a base, etc. Alternatively, the battery system may also have more energy storage battery packs, such as three or more. When the battery system has three energy storage battery packs, the modules for the three energy storage battery packs may be, in sequence, a battery housing, a base, and a power management system.

[0093] The electrical equipment provided in this application includes the above-described energy storage battery pack or the above-described battery system.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy storage battery pack, characterized in that, The system includes a module and an interlocking assembly (3), the interlocking assembly (3) including a first connector (31) and a second connector (32) rotatably connected to the first connector (31), the first connector (31) being mounted on the module, and the second connector (32) being adapted to be connected to another module of the energy storage battery pack.

2. The energy storage battery pack according to claim 1, characterized in that, The module is adapted to be stacked with another module of the energy storage battery pack, and the first connector (31) is mounted on the side surface of the module facing the other module of the energy storage battery pack.

3. The energy storage battery pack according to claim 2, characterized in that, The module is provided with a recess (4) suitable for accommodating the first connector (31).

4. The energy storage battery pack according to claim 3, characterized in that, The sink (4) and the first connector (31) are respectively disposed on opposite sides of the module.

5. The energy storage battery pack according to claim 4, characterized in that, The module is also provided with a recess (5) suitable for connection with a second connector (32) of another energy storage battery pack.

6. The energy storage battery pack according to claim 5, characterized in that, The recessed platform (5) is located on the side of the module away from the first connector (31).

7. The energy storage battery pack according to claim 6, characterized in that, The settling platform (5) can communicate with the settling tank (4).

8. The energy storage battery pack according to claim 5, characterized in that, The recessed platform (5) is recessed toward the center of the module, and the recessed platform (5) is adapted to accommodate the second connector (32) connected thereto.

9. The energy storage battery pack according to claim 5, characterized in that, The module has a first surface (10), a second surface (20) disposed opposite to the first surface (10), and a side surface connected between the first surface (10) and the second surface (20); The first connector (31) is mounted on the first surface (10); The second connector (32) is adapted to be connected to the side of another module of the energy storage battery pack.

10. The energy storage battery pack according to claim 9, characterized in that, The sink (4) is disposed on the second surface (20), and the sink platform (5) is disposed on the side of the side closest to the second surface (20).

11. The energy storage battery pack according to claim 1, characterized in that, A first fixing member is provided at the position on the module where it is connected to the first connector (31). The interlocking assembly (3) also includes a first locking member. The first locking member is connected to the first fixing member to install the first connector (31) on the module. And / or, the module is provided with a second fixing member at a position suitable for connection with the second connector (32) of another energy storage battery pack, and the interlock assembly (3) further includes a second locking member, the second fixing member being adapted to cooperate with the second locking member to enable the module to be connected with the second connector (32) of another energy storage battery pack.

12. The energy storage battery pack according to claim 11, characterized in that, The first fastener includes a first sealing nut post (6), which is mounted on the module; The first locking element includes a first locking bolt (33); The first connector (31) is provided with a first connecting hole (311) through which the first locking bolt (33) passes, and the first locking bolt (33) passes through the first connecting hole (311) and is threadedly connected to the first sealing nut post (6).

13. The energy storage battery pack according to claim 12, characterized in that, The first connecting hole (311) is provided in multiple ways, the first sealing nut post (6) is provided in multiple ways, and the first locking bolt (33) is provided in multiple ways; Multiple first connecting holes (311) are provided one-to-one with multiple first locking bolts (33), and multiple first locking bolts (33) are provided one-to-one with multiple first sealing nut posts (6).

14. The energy storage battery pack according to claim 3, characterized in that, The interlocking assembly (3) further includes a rotating shaft (35), through which the first connector (31) and the second connector (32) are rotatably connected.

15. The energy storage battery pack according to claim 14, characterized in that, The rotating shaft (35) is housed in the sink (4) of another energy storage battery pack.

16. The energy storage battery pack according to claim 1, characterized in that, The module is a battery housing, base, or power management system.

17. The energy storage battery pack according to claim 1, characterized in that, The first connector (31) includes a first hinge piece, and the second connector (32) includes a second hinge piece, and the first hinge piece and the second hinge piece are rotatably connected.

18. A battery system, characterized in that, Includes the energy storage battery pack according to any one of claims 1-17.

19. The battery system according to claim 18, characterized in that, The energy storage battery pack is provided in multiple ways, and the multiple energy storage battery packs are stacked in sequence. Between two adjacent energy storage battery packs, the second connector (32) of one of the energy storage battery packs is connected to the module of the other energy storage battery pack.

20. An electrical appliance, characterized in that, It includes the energy storage battery pack according to any one of claims 1-17; or, it includes the battery system according to claim 18 or 19.

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