Box structure and module-free battery system

Abstract

The utility model discloses a box body structure and a module-free battery system. The box structure comprises a bottom plate, a frame assembly, a first cross beam and a first longitudinal beam. The frame assembly is detachably arranged on the bottom plate, a containing space is defined by the frame assembly, and an installation block is detachably installed on the inner side wall of the frame assembly. The number of the first cross beams is multiple, the multiple first cross beams are arranged in the containing space, and the first cross beams are detachably connected with the mounting block. The two ends of each first longitudinal beam are detachably connected with the side walls of the two adjacent first cross beams respectively, the first longitudinal beams and the first cross beams divide the accommodating space into a plurality of accommodating cavities, and the plurality of accommodating cavities are used for accommodating a plurality of battery cell stacking bodies. The box body structure has high adaptability. And when the battery cell stacking bodies with different specifications need to be replaced, the first cross beams and the first longitudinal beams can be conveniently disassembled, and the size and the layout of the accommodating cavity can be adjusted, so that the mounting requirements of the battery cell stacking bodies with different sizes can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of battery equipment, and in particular to a box structure and a module-less battery system. Background Technology

[0002] Modular battery housings are typically built based on a modular design concept. Cell stacks are assembled into modules, and multiple modules are then installed into the housing. This approach results in a complex manufacturing process, requiring each module to be assembled individually, increasing production time and cost. Furthermore, modules occupy space within the housing, reducing the capacity of the housing for cells and consequently lowering the volumetric energy density of the battery system. Module-less battery systems, on the other hand, eliminate the need for modules, simplifying the assembly process and increasing cell capacity, thereby improving energy density. Because module-less cell stacks eliminate module frames and other structures, their overall structure differs significantly from traditional modules, and the internal layout of existing housings is incompatible with module-less cell stacks. Utility Model Content

[0003] The main purpose of this utility model is to provide a box structure and a module-less battery system, which aims to solve the technical problem that the internal layout of the existing box cannot be compatible with module-less cell stacks.

[0004] In order to achieve the above-mentioned utility model objectives, the first aspect of this utility model proposes a box structure.

[0005] A housing structure for a module-less battery system, comprising:

[0006] Base plate;

[0007] A frame assembly, which is detachably mounted on the base plate and encloses an accommodating space, and an mounting block is detachably mounted on the inner sidewall of the frame assembly;

[0008] A first crossbeam, wherein multiple first crossbeams are provided, the multiple first crossbeams are disposed within the accommodating space, and the first crossbeams are detachably connected to the mounting block; and

[0009] The first longitudinal beam has two ends that are detachably connected to the side walls of two adjacent first transverse beams, and the first longitudinal beam and the first transverse beam divide the accommodating space into multiple accommodating cavities for accommodating multiple battery cell stacks.

[0010] In one embodiment, the housing structure further includes a first fastener and a second fastener. A first mounting hole is provided on one side of the mounting block, and a second mounting hole is provided on the other side of the mounting block. The first crossbeam includes a first mounting plate and a second mounting plate disposed opposite to each other. A third mounting hole adapted to the first mounting hole is provided on the first mounting plate, and a fourth mounting hole adapted to the second mounting hole is provided on the second mounting plate. The first fastener is detachably inserted through the first mounting hole and the second mounting hole, and the second fastener is detachably inserted through the third mounting hole and the fourth mounting hole.

[0011] In one embodiment, the housing structure further includes a first liquid cooling plate, which is detachably mounted on the top of the first crossbeam.

[0012] In one embodiment, the housing structure further includes a second crossbeam and a second liquid cooling plate, the second liquid cooling plate being arranged opposite to the first liquid cooling plate in a vertical direction, the bottom of the second crossbeam being detachably connected to the first liquid cooling plate, and the top of the second crossbeam being detachably connected to the second liquid cooling plate.

[0013] In one embodiment, the housing structure further includes a second longitudinal beam and two third crossbeams arranged opposite each other. Both third crossbeams are detachably mounted on the side of the second liquid cooling plate away from the first liquid cooling plate, and the two ends of the second longitudinal beam are detachably connected to the side walls of the two third crossbeams respectively.

[0014] In one embodiment, a first reinforcing beam is provided between two adjacent first crossbeams of two adjacent accommodating cavities, and the two ends of the first reinforcing beam are detachably connected to the first crossbeams respectively.

[0015] In one embodiment, a second reinforcing beam is provided between two adjacent second crossbeams of two adjacent accommodating cavities, and the two ends of the second reinforcing beam are detachably connected to the second crossbeams respectively.

[0016] In one embodiment, the housing structure further includes a water circuit assembly and a connecting pipe. The water circuit assembly is connected to the connecting pipe, which is connected to the liquid cooling channel in the first liquid cooling plate and the liquid cooling channel in the second liquid cooling plate, respectively. The connecting pipe is fixed to the top of the first reinforcing beam and the top of the second reinforcing beam.

[0017] In one embodiment, the height of the first reinforcing beam is lower than the height of the first crossbeam; and / or

[0018] The height of the second reinforcing beam is lower than the height of the second crossbeam.

[0019] The second aspect of this utility model provides a module-less battery system, including the aforementioned housing structure.

[0020] Beneficial effects:

[0021] This utility model discloses a housing structure for a module-less battery system. The housing structure includes a base plate, a frame assembly, a first crossbeam, and a first longitudinal beam. The frame assembly is detachably mounted on the base plate and encloses an accommodating space. Mounting blocks are detachably mounted on the inner sidewalls of the frame assembly. Multiple first crossbeams are provided, each disposed within the accommodating space, and are detachably connected to the mounting blocks. The two ends of the first longitudinal beam are detachably connected to the sidewalls of two adjacent first crossbeams. The first longitudinal beams and the first crossbeams divide the accommodating space into multiple accommodating cavities for accommodating multiple cell stacks. All components of this housing structure—the frame assembly, mounting blocks, first crossbeams, and first longitudinal beams—are detachably connected. This housing structure has strong adaptability. When it is necessary to replace cell stacks of different specifications, the first crossbeams and first longitudinal beams can be easily disassembled, and the size and layout of the accommodating cavities can be adjusted to accommodate the installation requirements of cell stacks of different sizes, thus ensuring compatibility with module-less cell stacks of different sizes. Attached Figure Description

[0022] Figure 1 This is an exploded view of a module-less battery system according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the first layer of the box according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the three-layer box and liquid cooling structure according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of a three-layer box according to an embodiment of the present invention.

[0026] Figure 5 This is a structural schematic diagram of a frame component and mounting block according to an embodiment of the present invention.

[0027] Figure 6 yes Figure 5 A magnified view of point A.

[0028] Figure 7 This is a schematic diagram of the structure of the first layer of the box according to an embodiment of the present invention.

[0029] Figure 8 yes Figure 7 Enlarged view of point B.

[0030] Figure 9 yes Figure 4 Enlarged view of point C.

[0031] in:

[0032] 100. Base plate;

[0033] 200. Frame components; 210. Installation blocks;

[0034] 300. First crossbeam; 310. First mounting plate; 320. Second mounting plate;

[0035] 400. First longitudinal beam;

[0036] 500. Cell stack;

[0037] 600. First liquid cooling plate;

[0038] 710. Second crossbeam; 720. Second liquid cooling plate; 730. Second longitudinal beam; 740. Third crossbeam;

[0039] 810. Water system assembly; 820. Connecting pipes;

[0040] 910. First reinforcing beam; 920. Second reinforcing beam.

[0041] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0043] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] like Figures 1 to 5 As shown, in some embodiments, a housing structure is used for a module-less battery system. The housing structure includes a base plate 100, a frame assembly 200, first crossbeams 300, and first longitudinal beams 400. The frame assembly 200 is detachably mounted on the base plate 100 and encloses an accommodating space. Mounting blocks 210 are detachably mounted on the inner sidewalls of the frame assembly 200. Multiple first crossbeams 300 are provided, each disposed within the accommodating space, and are detachably connected to the mounting blocks 210. The two ends of the first longitudinal beams 400 are detachably connected to the sidewalls of two adjacent first crossbeams 300, and the first longitudinal beams 400 and the first crossbeams 300 divide the accommodating space into multiple accommodating cavities for accommodating multiple cell stacks 500.

[0047] The frame assembly 200, mounting block 210, first crossbeam 300, and first longitudinal beam 400 of this enclosure structure are all detachably connected. This design makes the enclosure structure highly adaptable. When it is necessary to replace the battery cell stack 500 with different specifications, the first crossbeam 300 and first longitudinal beam 400 can be easily disassembled to adjust the size and layout of the accommodating cavity to adapt to the installation requirements of battery cell stacks 500 of different sizes, thus ensuring compatibility with module-less battery cell stacks 500 of different sizes.

[0048] Please refer to the following: Figure 6In some embodiments, the housing structure further includes a first fastener and a second fastener. A first mounting hole is provided on one side of the mounting block 210, and a second mounting hole is provided on the other side of the mounting block 210. The first crossbeam 300 includes a first mounting plate 310 and a second mounting plate 320 disposed opposite to each other. A third mounting hole adapted to the first mounting hole is provided on the first mounting plate 310, and a fourth mounting hole adapted to the second mounting hole is provided on the second mounting plate 320. The first fastener is detachably inserted through the first mounting hole and the second mounting hole, and the second fastener is detachably inserted through the third mounting hole and the fourth mounting hole.

[0049] Specifically, the first fastener and the second fastener can be screws. The first mounting hole and the second mounting hole can be threaded holes.

[0050] Specifically, the mounting block 210 can be a T-shaped block.

[0051] In some embodiments, multiple mounting blocks 210 may be provided. Multiple first crossbeams 300 may be provided. The multiple mounting blocks 210 are provided in a one-to-one correspondence with the multiple first crossbeams 300.

[0052] It should be noted that the one-to-one correspondence between multiple mounting blocks 210 and multiple first crossbeams 300 increases the connection and support points of the enclosure structure. Each combination of a corresponding mounting block 210 and first crossbeam 300 provides support and reinforcement to the enclosure, enabling it to better resist external forces in all directions and reducing the possibility of deformation and damage. This arrangement allows for flexible adjustment of the number and position of the mounting blocks 210 and first crossbeams 300 according to the quantity, size, and layout requirements of the cell stacks 500. If more cell stacks 500 need to be accommodated, the number of mounting blocks 210 and first crossbeams 300 can be increased to create more accommodating cavities. If the cell stacks 500 are large, the spacing and position of the mounting blocks 210 and first crossbeams 300 can be adjusted appropriately for better fit.

[0053] Specifically, adjacent mounting blocks 210 are spaced at equal intervals. Adjacent first crossbeams 300 are also spaced at equal intervals. The equally spaced mounting blocks 210 and first crossbeams 300 provide uniform support for the cell stack 500, ensuring that each cell stack 500 receives consistent support within the enclosure. This prevents uneven support from causing excessive localized pressure on the cell stack 500, thereby reducing the risk of cell damage or deformation.

[0054] Specifically, the first mounting plate 310 and the second mounting plate 320 are arranged in parallel. The first mounting plate 310 and the second mounting plate 320 can be rectangular plates.

[0055] In some embodiments, the housing structure further includes a first liquid cooling plate 600, which is detachably mounted on the top of the first crossbeam 300. Specifically, a liquid cooling plate may also be mounted on the base plate 100.

[0056] Specifically, the housing structure also includes a second crossbeam 710 and a second liquid cooling plate 720. The second liquid cooling plate 720 and the first liquid cooling plate 600 are arranged opposite each other in the vertical direction. The bottom of the second crossbeam 710 is detachably connected to the first liquid cooling plate 600, and the top of the second crossbeam 710 is detachably connected to the second liquid cooling plate 720.

[0057] Specifically, the box structure also includes a second longitudinal beam 730 and two third cross beams 740 arranged opposite each other. Both third cross beams 740 are detachably mounted on the side of the second liquid cooling plate 720 away from the first liquid cooling plate 600. The two ends of the second longitudinal beam 730 are detachably connected to the side walls of the two third cross beams 740 respectively.

[0058] It should be noted that the aforementioned detachable connection method can include snap-fit, bolt, or other connections. The first crossbeam 300, first longitudinal beam 400, second crossbeam 710, second longitudinal beam 730, and third crossbeam 740 constitute a three-layer enclosure, which supports and dissipates heat from the three-layer battery cell stack 500. This three-layer enclosure structure ensures heat dissipation while making efficient use of the internal space. Through layered layout, the battery cell stack 500, the first liquid cooling plate 600, and the second liquid cooling plate 720 can be arranged in an orderly manner, achieving both heat dissipation and structural support within a limited space, thus improving space utilization.

[0059] Please refer to the following: Figure 7 and Figure 8 In some embodiments, a first reinforcing beam 910 is provided between two adjacent first crossbeams 300 of two adjacent accommodating cavities, and both ends of the first reinforcing beam 910 are detachably connected to the first crossbeam 300. The provision of the first reinforcing beam 910 enhances the connection strength and stability between the two adjacent first crossbeams 300 of two adjacent accommodating cavities, enabling the entire box structure to better maintain its shape and structural integrity when subjected to external forces such as pressure, tension, and vibration, and reducing the risk of deformation and damage caused by external forces. For example, during transportation or use, the box may be subjected to forces in various directions, and the first reinforcing beam 910 can effectively resist these external forces, ensuring the stability of the box.

[0060] Please refer to the following: Figure 4 and Figure 9In some embodiments, a second reinforcing beam 920 is provided between two adjacent second crossbeams 710 of two adjacent accommodating cavities, and the two ends of the second reinforcing beam 920 are detachably connected to the second crossbeams 710. The provision of the second reinforcing beam 920 enhances the connection strength and stability between the two adjacent second crossbeams 710 of two adjacent accommodating cavities.

[0061] In some embodiments, the housing structure further includes a water circuit assembly 810 and a connecting pipe 820. The water circuit assembly 810 is connected to the connecting pipe 820. The connecting pipe 820 is connected to the liquid cooling channel in the first liquid cooling plate 600 and the liquid cooling channel in the second liquid cooling plate 720, respectively. The connecting pipe 820 is fixed to the top of the first reinforcing beam 910 and the top of the second reinforcing beam 920.

[0062] It should be noted that the coolant is driven by the water circuit assembly 810 to circulate in the connecting pipe 820 and the liquid cooling channels of the first liquid cooling plate 600 and the second liquid cooling plate 720. When the coolant flows through the first liquid cooling plate 600 and the second liquid cooling plate 720, it can absorb the heat generated by the cell stack 500 on the first liquid cooling plate 600 and the second liquid cooling plate 720, and then the coolant carries away the heat, thereby cooling the cell stack 500 and maintaining the temperature of the cell stack 500 within a suitable range to ensure the normal operation of the battery system.

[0063] The connecting pipe 820 is fixed to the top of the first reinforcing beam 910 and the second reinforcing beam 920 because the first and second reinforcing beams 910 and 920 can provide stable support and fixation. The first and second reinforcing beams 910 and 920 themselves have high strength and stability, capable of bearing the weight of the connecting pipe 820 and the coolant inside it, while ensuring that the connecting pipe 820 maintains a stable position during the operation of the housing, preventing displacement, detachment, or damage due to vibration, shaking, or other factors, thus ensuring the reliability and stability of the liquid cooling system. Specifically, the connecting pipe 820 is fixed to the top of the first and second reinforcing beams 910 and 920 using cable ties.

[0064] In some embodiments, the height of the first reinforcing beam 910 is lower than the height of the first crossbeam 300. The height of the second reinforcing beam 920 is lower than the height of the second crossbeam 710. This arrangement provides more space for the installation and arrangement of other components inside the enclosure. For example, when installing liquid cooling systems, electrical equipment, and ventilation devices, the space between the first reinforcing beam 910 and the first crossbeam 300 can be utilized, allowing these components to be more rationally distributed inside the enclosure. This avoids layout chaos or equipment interference problems caused by insufficient space, and helps improve the integration and compactness of the enclosure. The space reserved by the lower first reinforcing beam 910 can be used for laying cables, pipes, etc.

[0065] In another embodiment, a module-less battery system includes the aforementioned housing structure.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A housing structure for a module-less battery system, characterized in that, include: Base plate; A frame assembly, which is detachably mounted on the base plate and encloses an accommodating space, and an mounting block is detachably mounted on the inner sidewall of the frame assembly; The first crossbeam, and multiple first crossbeams are provided, with multiple first crossbeams disposed within the accommodating space, and the first crossbeams are detachably connected to the mounting block; and The first longitudinal beam has two ends that are detachably connected to the side walls of two adjacent first transverse beams, and the first longitudinal beam and the first transverse beam divide the accommodating space into multiple accommodating cavities for accommodating multiple battery cell stacks.

2. The box structure according to claim 1, characterized in that, The housing structure also includes a first fastener and a second fastener. A first mounting hole is provided on one side of the mounting block, and a second mounting hole is provided on the other side of the mounting block. The first crossbeam includes a first mounting plate and a second mounting plate arranged opposite to each other. A third mounting hole adapted to the first mounting hole is provided on the first mounting plate, and a fourth mounting hole adapted to the second mounting hole is provided on the second mounting plate. The first fastener is detachably inserted through the first mounting hole and the second mounting hole, and the second fastener is detachably inserted through the third mounting hole and the fourth mounting hole.

3. The box structure according to claim 1, characterized in that, The enclosure structure also includes a first liquid cooling plate, which is detachably mounted on the top of the first crossbeam.

4. The box structure according to claim 3, characterized in that, The box structure also includes a second crossbeam and a second liquid cooling plate. The second liquid cooling plate is arranged opposite to the first liquid cooling plate in the vertical direction. The bottom of the second crossbeam is detachably connected to the first liquid cooling plate, and the top of the second crossbeam is detachably connected to the second liquid cooling plate.

5. The box structure according to claim 4, characterized in that, The box structure also includes a second longitudinal beam and two third cross beams arranged opposite each other. Both third cross beams are detachably mounted on the side of the second liquid cooling plate away from the first liquid cooling plate. The two ends of the second longitudinal beam are detachably connected to the side walls of the two third cross beams respectively.

6. The box structure according to claim 4, characterized in that, A first reinforcing beam is provided between two adjacent first crossbeams of two adjacent accommodating cavities, and the two ends of the first reinforcing beam are detachably connected to the first crossbeams respectively.

7. The box structure according to claim 6, characterized in that, A second reinforcing beam is provided between two adjacent second crossbeams of two adjacent accommodating cavities, and the two ends of the second reinforcing beam are detachably connected to the second crossbeams respectively.

8. The box structure according to claim 7, characterized in that, The housing structure also includes a water circuit assembly and connecting pipes. The water circuit assembly is connected to the connecting pipes, and the connecting pipes are respectively connected to the liquid cooling channels in the first liquid cooling plate and the liquid cooling channels in the second liquid cooling plate. The connecting pipes are fixed to the top of the first reinforcing beam and the top of the second reinforcing beam.

9. The box structure according to claim 7, characterized in that, The height of the first reinforcing beam is lower than the height of the first crossbeam; and / or The height of the second reinforcing beam is lower than the height of the second crossbeam.

10. A module-less battery system comprising the housing structure as described in any one of claims 1 to 9.

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