Battery structure and vehicle

Abstract

The utility model provides a battery structure and a vehicle. The battery structure comprises a box body, a battery module, a plurality of first supporting plates and a box cover, wherein the battery module is arranged in the box body; the battery module comprises a plurality of battery packs which are sequentially arranged along a first direction; each first supporting plate is arranged between any adjacent battery packs; each first supporting plate comprises a containing cavity, a plurality of partition plates are arranged in the containing cavity, and the partition plates are used for dividing the containing cavity into a plurality of sub-cavities; the box cover is arranged on the sides, away from the bottom of the box body, of the first supporting plates and connected with the box body. At least part of the box cover forms a floor of the vehicle. The battery structure can prevent the box cover from deforming, and the safety performance of the battery structure is improved.

Description

Technical Field

[0001] This application relates to the field of energy storage, and more particularly to a battery structure and vehicle. Background Technology

[0002] As research into the "three electrics" technologies (motor, battery, and electronic control) matures and industrialization increases, the battery, as a core component of electric vehicles, directly impacts the vehicle's range, safety, and space utilization. To improve the integration of electric vehicles while increasing passenger cabin space and comfort, cell-to-body (CTB) solutions are gradually becoming a new trend in the industry.

[0003] However, the current battery structure has limited load-bearing capacity and is easily deformed by being stepped on, which reduces the safety of the battery structure. Utility Model Content

[0004] This application provides a battery structure and a vehicle that can improve the load-bearing capacity and safety of the battery structure.

[0005] In a first aspect, embodiments of this application provide a battery structure, including:

[0006] Box;

[0007] A battery module is disposed within the housing; the battery module includes multiple battery packs arranged sequentially along a first direction.

[0008] A plurality of first support plates are disposed between any adjacent battery packs; wherein each first support plate includes a receiving chamber, wherein a plurality of partitions are disposed within the receiving chamber, the plurality of partitions being used to divide the receiving chamber into a plurality of sub-chambers;

[0009] A lid is disposed on one side of a plurality of first support plates opposite to the bottom of the body and connected to the body; wherein at least a portion of the lid constitutes the floor of the vehicle.

[0010] In one possible implementation, the plurality of partitions includes a plurality of first partitions and a plurality of second partitions;

[0011] Multiple first partitions are arranged at intervals along a second direction; a second partition is disposed between any two adjacent first partitions and is inclined to the first partitions;

[0012] The second direction is perpendicular to the first direction.

[0013] In one possible implementation, the battery structure further includes a battery contact system extending along the first direction, the battery contact system being electrically connected to the respective terminals of a plurality of battery packs arranged sequentially along the first direction.

[0014] Each of the first support plates includes a first surface and a second surface disposed opposite to each other along its thickness direction, the first surface being provided with a clearance area, the clearance area penetrating the first support plate at least along the first direction;

[0015] The battery contact system is housed within the clearance area.

[0016] In one possible implementation, the avoidance zone includes a first avoidance zone and a second avoidance zone;

[0017] The first clearance area penetrates the first surface and extends along the first direction through the first support plate;

[0018] The second avoidance zone is connected to the first avoidance zone, and the second avoidance zone penetrates the first support plate along the first direction.

[0019] In one possible implementation, the first surface is higher than the top surface of the battery module.

[0020] In one possible implementation, the battery structure further includes a second support plate, which is connected to a plurality of first support plates and covers the battery module.

[0021] In one possible implementation, each of the first support plates is provided with a first mounting hole that communicates with the receiving chamber;

[0022] The second support plate is provided with a second mounting hole that mates with the first mounting hole;

[0023] The first mounting hole and the second mounting hole are used for fasteners to pass through.

[0024] In one possible implementation, the surface of the second support plate facing the first support plate has at least two protrusions;

[0025] The second mounting hole is provided on at least a portion of the protrusion and extends through the second support plate.

[0026] In one possible implementation, of at least two protrusions, the length of one of the protrusions is greater than the length of the other protrusion;

[0027] And / or, the surface of the second support plate facing the first support plate is further provided with reinforcing ribs.

[0028] Secondly, embodiments of this application provide a vehicle including the battery structure described in the first aspect;

[0029] At least a portion of the battery structure's cover body constitutes the vehicle's floor.

[0030] The battery structure and vehicle provided in this application embodiment utilize a first support plate positioned between any two adjacent battery packs, with the top of the first support plate connected to the battery cover. This allows the first support plate to support the battery cover, reducing the risk of the cover being deformed by being stepped on.

[0031] Furthermore, the first support plate has a hollow structure, and a partition is installed within its accommodating cavity to divide the accommodating cavity into several sub-cavities. This hollow structure and sub-cavity design give the first support plate elastic deformation capabilities. When the lid is subjected to the force of being stepped on, the sub-cavities absorb energy through elastic deformation, reducing the risk of the lid being deformed by being stepped on, thereby improving the protection of the battery module.

[0032] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the battery structure and vehicle provided by the embodiments of this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] Figure 1 This is a schematic diagram of a battery structure provided in one embodiment of this application;

[0035] Figure 2 This is a partial schematic diagram of a battery structure provided in one embodiment of this application;

[0036] Figure 3 A view of a first support plate provided in an embodiment of this application;

[0037] Figure 4 Another orientation view of the first support plate provided in an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the structure of the second support plate provided in one embodiment of this application;

[0039] Figure 6 This is a partial schematic diagram of a battery structure provided in another embodiment of this application;

[0040] Figure 7 This is a schematic diagram of a first support plate provided for another embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1000: Battery structure;

[0043] 100: Box body; 110: First support beam; 120: Second support beam;

[0044] 200: Battery pack; 210: Individual battery cell;

[0045] 300: First support plate; 310: Partition; 311: First partition; 312: Second partition; 320: Sub-chamber; 330: Clearance area; 331: First clearance area; 332: Second clearance area; 340: First mounting hole;

[0046] 400: Box lid;

[0047] 500: Battery contact system;

[0048] 600: Second support plate; 610: Second mounting hole; 620: Protrusion; 630: Reinforcing rib.

[0049] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0051] As described in the background section, the load-bearing capacity of battery structures in related technologies is limited, and they are easily deformed by being stepped on. The inventors discovered that this problem arises because the top surface of the battery structure at least partially constitutes part of the vehicle's floor, and the top surface of the battery structure has poor load-bearing capacity, making it susceptible to deformation from being stepped on.

[0052] To address the aforementioned technical problems, this application provides a battery structure and vehicle, which involves placing a first support plate between any two adjacent battery packs, with the top of the first support plate connected to the battery cover. This allows the first support plate to support the battery cover, reducing the risk of the battery cover being deformed by being stepped on.

[0053] Furthermore, the first support plate has a hollow structure, and a partition is installed within its accommodating cavity to divide the accommodating cavity into several sub-cavities. This hollow structure and sub-cavity design give the first support plate elastic deformation capabilities. When the lid is subjected to the force of being stepped on, the sub-cavities absorb energy through elastic deformation, reducing the risk of the lid being deformed and thus improving the protection of the battery module.

[0054] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0055] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, 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 scope of protection of this application.

[0056] Please refer to the attached document. Figure 1 To be continued Figure 7 This application provides a battery structure 1000, which serves as an energy storage component and can be applied to electrical devices. For example, the battery structure 1000 can be used in a vehicle to provide electrical energy to ensure the normal operation of the vehicle.

[0057] The battery structure 1000 includes a housing 100, which serves as the main load-bearing component and connecting component of the battery structure 1000, and is used to mount the battery structure 1000 onto the vehicle body frame.

[0058] The battery structure 1000 also includes a battery module, which is disposed within the housing 100; wherein, the battery module includes multiple battery packs 200, which can be arranged sequentially along a first direction. It should be understood that each battery pack 200 includes multiple battery cells 210 arranged in an array. To facilitate explanation of the battery pack 200, let's consider... Figure 2Multiple individual battery cells 210 within the dashed line are defined as a battery pack 200.

[0059] Taking a rectangular battery cell 210 as an example, the first direction can be the width direction of the battery cell 210, i.e., the attached direction. Figure 1 In the X direction.

[0060] It should be noted that the number of battery modules can be one or more. For example, the number of battery modules is multiple. To facilitate the limitation of battery modules, the housing 100 provided in this embodiment is further provided with several first support beams 110 and several second support beams 120; the several first support beams 110 and several second support beams 120 intersect each other to divide the chamber of the housing 100 into multiple mounting cavities; each mounting cavity contains one battery module. This increases the capacity of the battery structure 1000.

[0061] Please refer to the attached document. Figure 3 The battery structure 1000 also includes a plurality of first support plates 300, each first support plate 300 being disposed between any adjacent battery packs 200. In other words, the first support plates 300 extend along a second direction such that each battery pack 200 has a first support plate 300 on both sides of the first direction, for example, the first support plates 300 provide mechanical support for each battery pack 200.

[0062] The second direction is perpendicular to the first direction; that is, the second direction can be the length direction of the battery cell 210. In other words, the second direction is the auxiliary direction. Figure 1 Center Y direction.

[0063] Please refer to the attached document. Figure 4 In this embodiment, each first support plate 300 includes a receiving chamber, and a plurality of partitions 310 are disposed in the receiving chamber to divide the receiving chamber into several sub-chambers 320. It is understood that the shapes of the several sub-chambers 320 may be equal or unequal, and this embodiment does not limit them.

[0064] Please refer to the attached document. Figure 1 and attached Figure 2 The battery structure 1000 also includes a cover 400, which is disposed on the side of the plurality of first support plates 300 opposite to the bottom of the housing 100 and connected to the housing 100. At least a portion of the cover 400 forms the floor of the vehicle. It is understood that the cover 400 can be directly connected to the plurality of first support plates 300 or indirectly connected.

[0065] In this embodiment, a first support plate 300 is provided between any two adjacent battery packs 200, and the top of the first support plate 300 is connected to the cover 400. In this way, the first support plate 300 can be used to support the cover 400, reducing the risk of the cover 400 being deformed by being stepped on.

[0066] Furthermore, the first support plate 300 has a hollow structure, and a partition 310 is provided within the receiving cavity of the first support plate 300, dividing the receiving cavity into several sub-cavities 320. The hollow structure and the design of the sub-cavities 320 enable the first support plate 300 to have elastic deformation capability. When the cover 400 bears the force generated by being stepped on, the several sub-cavities 320 absorb energy through elastic deformation, reducing the risk of the cover 400 being deformed by being stepped on, thereby improving the protection capability of the battery module.

[0067] It is important to understand that the shape of the sub-chamber 320 depends on the structure of the partition 310. Please refer to the appendix. Figure 4 For example, the plurality of partitions 310 include a plurality of first partitions 311 and a plurality of second partitions 312. The plurality of first partitions 311 are spaced apart along a second direction. For example, the plurality of first partitions 311 are spaced apart along the length direction of the first support plate 300, and each first partition 311 extends in a direction perpendicular to the bottom wall of the housing 100, such that the plurality of first partitions 311 are perpendicular to the inner wall of the receiving chamber.

[0068] A second partition 312 is disposed between any two adjacent first partitions 311 and is inclined to the first partitions 311. For example, the angle between the second partition 312 and the first partition 311 is 45°. In this way, the multiple sub-chambers 320 are triangular in shape; thus, the structural strength of the first support plate 300 can be significantly improved, stress distribution can be optimized, space utilization can be improved, and anti-trampling and impact resistance can be enhanced, while facilitating manufacturing and assembly.

[0069] Please refer to the attached document. Figure 2 To facilitate electrical connection between the battery module and external electrical equipment, the battery structure 1000 also includes a Cell Contact System (CCS). The Cell Contact System 500 extends along a first direction. The Cell Contact System 500 is electrically connected to the terminals of a plurality of battery packs 200 arranged at intervals along the first direction. Alternatively, the Cell Contact System 500 is connected to the terminals of a plurality of individual battery cells 210 arranged sequentially along the first direction.

[0070] The battery contact system 500 includes electrode sheets and a flexible circuit board. The electrode sheets are used to connect with the terminals of the battery cell 210, and the flexible circuit board is disposed on the electrode sheets for connection with the battery management system (BMS) of the battery structure 1000 to control the performance of the battery cell 210.

[0071] Please refer to the attached document. Figure 6 and attached Figure 7 In order to facilitate the layout of the first support plate 300 and the battery contact system 500, each first support plate 300 includes a first surface and a second surface disposed opposite to each other along its thickness direction; the first surface is the top surface of the first support plate 300, and the second surface is the bottom surface of the first support plate 300.

[0072] A clearance area 330 is provided on the first surface, and the clearance area 330 penetrates the first support plate 300 at least along a first direction. Figure 1 Taking the orientation shown as an example, the avoidance zone 330 is at least a through hole with openings on the left and right sides.

[0073] In this way, the battery contact system 500 can be installed within the clearance area 330. Alternatively, the battery contact system 500 can be housed within the clearance area 330. This embodiment provides dedicated space for the battery contact system 500 through the clearance area 330, preventing interference between the CCS and other components and optimizing the space utilization within the battery structure 1000. Furthermore, by integrating the CCS into the clearance area 330, the additional installation space requirement is reduced, making the battery structure more compact.

[0074] Please refer to the attached document. Figure 7 In some embodiments, the avoidance area 330 includes a first avoidance area 331 and a second avoidance area 332. The first avoidance area 331 penetrates the first surface and extends through the first support plate 300 in a first direction. Thus, the first avoidance area 331 has left and right openings and a top opening.

[0075] The second clearance area 332 is interconnected with the first clearance area 331, and the second clearance area 332 penetrates the first support plate 300 along the first direction. Thus, the second clearance area 332 has left and right openings.

[0076] With this configuration, the shapes of the first clearance area 331 and the second clearance area 332 can be freely set according to the structure and shape of the battery contact system 500, thereby improving the design flexibility of the battery structure 1000.

[0077] Furthermore, the first surface is higher than the top surface of the battery module, which ensures that the first support plate 300 can abut against the top surface of the cover 400, thus ensuring that the first support plate 300 can support the cover 400, preventing the cover 400 from deforming, and improving the safety performance of the battery structure 1000.

[0078] Please refer to the attached document. Figure 2 and attached Figure 5In one possible implementation, the battery structure 1000 further includes a second support plate 600, which is connected to a plurality of first support plates 300 and covers the battery module. That is, the second support plate 600 is connected to each of the first support plates 300 and covers the battery module.

[0079] The second support plate 600 has a large contact area with the box cover 400, thereby improving the load-bearing capacity between the multiple first support plates 300 and the second support plate 600, and minimizing the risk of the box cover 400 being deformed by being stepped on.

[0080] It should be noted that in this embodiment, the second support plate 600 and the first support plate 300 can be detachably connected, which facilitates the connection of multiple first support plates 300 and second support plates 600 and improves the assembly convenience of multiple first support plates 300 and second support plates 600.

[0081] As one possible implementation of the connection between the first support plate 300 and the second support plate 600, each first support plate 300 is provided with a first mounting hole 340 communicating with the receiving chamber; the second support plate 600 is provided with a second mounting hole 610 that cooperates with the first mounting hole 340.

[0082] The first mounting hole 340 and the second mounting hole 610 are used for fasteners to pass through. For example, the first mounting hole 340 and the second mounting hole 610 are used for bolts to pass through in order to achieve a fixed connection between the second support plate 600 and the plurality of first support plates 300.

[0083] It is understandable that there can be one or more second support plates 600. When there are two second support plates 600, the two second support plates 600 are stacked.

[0084] In one possible implementation, the surface of the second support plate 600 facing the first support plate 300 has at least two protrusions 620; a second mounting hole 610 is provided on at least a portion of the protrusions 620 and extends through the second support plate 600.

[0085] The second mounting hole 610 may be selectively provided on at least a portion of the protrusion 620. For example, each protrusion 620 may be provided with the second mounting hole 610. Or, for example, a portion of the protrusion 620 may be provided with the second mounting hole 610.

[0086] This increases the distance between the second support plate 600 and the first support plate 300, avoiding excessive pressure on the battery module from the second support plate 600, thereby improving the safety of the battery module.

[0087] In this embodiment, the top surface of the second support plate 600 facing away from the first support plate 300 is flat. With this configuration, cushioning foam is provided on the top surface of the second support plate 600 facing away from the first support plate 300, which can buffer the force generated when stepping on the box cover 400.

[0088] In this configuration, at least two protrusions 620 are provided, with one protrusion 620 having a longer length than the other. This allows for a more efficient arrangement of each protrusion 620 to avoid interfering with parts of the battery module structure, thus improving the safety of the battery module.

[0089] And / or, the surface of the second support plate 600 facing the first support plate 300 is further provided with reinforcing ribs 630. In this way, the structural strength of the second support plate 600 can be improved.

[0090] The number of reinforcing ribs 630 can be multiple. Some of the reinforcing ribs 630 are provided on one side of the protrusion 620, and other reinforcing ribs 630 are provided on the other side of the protrusion 620.

[0091] Multiple reinforcing ribs 630 located on the same side are spaced apart along the length of the second support plate 600. Each reinforcing rib 630 extends along the width of the second support plate 600.

[0092] This application also provides a vehicle including the battery structure 1000 described in any of the above embodiments; at least a portion of the cover 400 of the battery structure 1000 constitutes the floor of the vehicle.

[0093] Since the vehicle includes the battery structure 1000 described in any of the above embodiments, it possesses the structure and beneficial effects of the battery structure 1000, and will not be described in detail here.

[0094] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0095] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery structure, characterized in that, include: Box; A battery module is disposed inside the housing; the battery module includes multiple battery packs arranged sequentially along a first direction. A plurality of first support plates are disposed between any adjacent battery packs; wherein each first support plate includes a receiving chamber, wherein a plurality of partitions are disposed within the receiving chamber, the plurality of partitions being used to divide the receiving chamber into a plurality of sub-chambers; A lid is disposed on one side of a plurality of first support plates opposite to the bottom of the body and connected to the body; wherein at least a portion of the lid constitutes the floor of the vehicle.

2. The battery structure according to claim 1, characterized in that, The plurality of partitions includes a plurality of first partitions and a plurality of second partitions; Multiple first partitions are arranged at intervals along a second direction; a second partition is disposed between any two adjacent first partitions and is inclined to the first partitions. The second direction is perpendicular to the first direction.

3. The battery structure according to claim 2, characterized in that, The battery structure further includes a battery contact system extending along the first direction, and the battery contact system is electrically connected to the terminals of a plurality of battery packs arranged sequentially along the first direction. Each of the first support plates includes a first surface and a second surface disposed opposite to each other along its thickness direction, the first surface being provided with a clearance area, the clearance area penetrating the first support plate at least along the first direction; The battery contact system is housed within the clearance area.

4. The battery structure according to claim 3, characterized in that, The avoidance zone includes a first avoidance zone and a second avoidance zone; The first clearance area penetrates the first surface and extends along the first direction through the first support plate; The second avoidance zone is connected to the first avoidance zone, and the second avoidance zone penetrates the first support plate along the first direction.

5. The battery structure according to claim 4, characterized in that, The first surface is higher than the top surface of the battery module.

6. The battery structure according to claim 2, characterized in that, The battery structure also includes a second support plate, which is connected to a plurality of first support plates and covers the battery module.

7. The battery structure according to claim 6, characterized in that, Each of the first support plates is provided with a first mounting hole that communicates with the receiving chamber; The second support plate is provided with a second mounting hole that mates with the first mounting hole; The first mounting hole and the second mounting hole are used for fasteners to pass through.

8. The battery structure according to claim 7, characterized in that, The second support plate has at least two protrusions on its surface facing the first support plate; The second mounting hole is provided on at least a portion of the protrusion and extends through the second support plate.

9. The battery structure according to claim 8, characterized in that, Of at least two of the protrusions, the length of one of the protrusions is greater than the length of the other protrusion; And / or, the surface of the second support plate facing the first support plate is further provided with reinforcing ribs.

10. A vehicle, characterized in that, Includes the battery structure described in any one of claims 1-9; At least a portion of the battery structure's cover forms the vehicle's floor.

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