Battery pack structure and vehicle

Abstract

The application provides a battery pack structure and a vehicle, and relates to the technical field of vehicles.The battery pack structure comprises a protection frame body and a battery pack body, the protection frame body and a vehicle body floor form a battery protection groove, the battery pack body is arranged in the battery protection groove through a mounting assembly, and a first gap is formed between the battery pack body and the side wall of the battery protection groove.In the battery pack structure, the protection frame body protects the battery pack body, when the front, rear, left and right of the vehicle body are impacted, the protection frame body protects the battery pack body, the protection frame body strengthens and supports the vehicle body floor, the strength and rigidity of the vehicle body floor are improved, the vehicle body floor is prevented from being deformed after the vehicle body is impacted, the battery pack body is prevented from being extruded or damaged, and the protection ability and protection strength of the battery pack body are improved.

Description

Technical Field

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

[0002] The battery pack in a hybrid electric vehicle (HEV) is one of the core components of the hybrid electric vehicle's power system. It is mainly used to store and supply electrical energy and coordinate the operation of the engine and the electric motor.

[0003] In existing hybrid vehicles, the battery pack is located on the lower surface of the vehicle floor, between the door sill beams on both sides of the vehicle. In the event of a side collision, the door sill beams can protect the battery pack.

[0004] When the vehicle body is subjected to front or rear collisions or the door sill beam breaks, the vehicle floor is prone to significant deformation, and the battery pack is easily squeezed and damaged. Utility Model Content

[0005] This application provides a battery pack structure and vehicle to solve the existing technical problem that when the vehicle body is subjected to front or rear collisions or the sill beam breaks, the vehicle floor is prone to large deformation, and the battery pack is easily squeezed and damaged.

[0006] A first aspect of this application provides a battery pack structure, including:

[0007] A protective frame is provided for installation on the lower surface of the vehicle body floor, and the protective frame is located between two door sill beams of the vehicle body. The protective frame and the vehicle body floor together form a battery protection groove.

[0008] The battery pack body is disposed within the battery protection slot via an installation assembly, and a first gap exists between the battery pack body and the sidewall of the battery protection slot.

[0009] In one possible implementation, the protective frame includes a first longitudinal beam, a second longitudinal beam, a first crossbeam, and a second crossbeam. The first longitudinal beam and the second longitudinal beam extend in the length direction of the vehicle body, and the first crossbeam and the second crossbeam extend in the width direction of the vehicle body. One end of the first crossbeam is disposed on the first longitudinal beam, and the other end of the first crossbeam is disposed on the second longitudinal beam. One end of the second crossbeam is disposed on the first longitudinal beam, and the other end of the second crossbeam is disposed on the second longitudinal beam.

[0010] In one possible implementation, the mounting assembly includes a first mounting member and a second mounting member, with one side of the battery pack body mounted on the first crossbeam via the first mounting member, and the opposite side of the battery pack body mounted on the second crossbeam via the second mounting member.

[0011] In one possible implementation, one end of the mounting component is disposed on the side of the battery pack body facing away from the vehicle floor, and the other end of the mounting component is disposed on the side of the protective frame facing away from the vehicle floor, so that a second gap is formed between the battery pack body and the vehicle floor.

[0012] In one possible implementation, the sides of the first crossbeam and the second crossbeam facing the vehicle floor are both welded to the vehicle floor, so that the sides of the first crossbeam and the second crossbeam facing the vehicle floor are in contact with the vehicle floor.

[0013] In one possible implementation, a buffer layer is further included, which is disposed between the battery pack body and the sidewall of the battery protection groove to fill the first gap.

[0014] In one possible implementation, a seat crossbeam is also included, which is disposed on the upper surface of the vehicle floor, the seat crossbeam being used to mount a vehicle seat, and the projection of the seat crossbeam toward the battery pack body is at least partially located within the battery pack body.

[0015] In one possible implementation, the first crossbeam, the second crossbeam, and the seat crossbeam all extend in the same direction, the lengths of the first crossbeam and the second crossbeam are both less than the length of the seat crossbeam, and the first crossbeam and the second crossbeam are both located between the two ends of the seat crossbeam.

[0016] In one possible implementation, both the first longitudinal beam and the second longitudinal beam are located between the two ends of the seat crossbeam.

[0017] A second aspect of this application provides a vehicle, including a vehicle body, a vehicle floor disposed on the vehicle body, and a battery pack structure as described in any one of the above claims, the battery pack structure being disposed on the vehicle floor.

[0018] This application provides a battery pack structure and a vehicle. The battery pack structure includes a protective frame and a battery pack body. The protective frame is used to be installed on the lower surface of the vehicle body floor and is located between two door sill beams of the vehicle body. The protective frame and the vehicle body floor enclose a battery protection groove. The battery pack body is installed in the battery protection groove through a mounting assembly, and there is a first gap between the battery pack body and the side wall of the battery protection groove. In the battery pack structure of this application, the battery pack body is placed inside the battery protection slot by an mounting assembly. The protective frame body is the side wall of the battery protection slot, and the vehicle floor is the bottom wall of the battery protection slot. At this time, the battery pack body is located in the area enclosed by the protective frame body. The protective frame body plays the role of protecting the battery pack body from all sides. When the vehicle body is hit by a collision from the front, rear, left, or right, the protective frame body plays the role of protecting the battery pack body. Furthermore, since there is a first gap between the battery pack body and the side wall of the battery protection slot, the first gap has a buffering effect. When the protective frame body is hit by a collision, the first gap can prevent the protective frame body from directly colliding with the battery pack body, further preventing the battery pack body from being hit by a collision. In addition, the protective frame body also plays a role of strengthening and supporting the vehicle floor, improving the strength and rigidity of the vehicle floor, and can largely prevent the vehicle floor from deforming after the vehicle body is hit by a collision. This can also prevent the battery pack body from being squeezed or damaged, thereby improving the protection capability and protection strength of the battery pack body. Attached Figure Description

[0019] 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.

[0020] Figure 1 A schematic diagram of the battery pack structure provided for an embodiment of this application;

[0021] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0023] Figure 4 for Figure 1 A structural diagram from another angle;

[0024] Figure 5 A schematic diagram of the structure in which the protective frame of the battery pack is installed on the vehicle floor, as provided in the embodiments of this application;

[0025] Figure 6 This is a structural diagram of the vehicle body floor facing the interior of the vehicle body, provided as an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Vehicle floor;

[0028] 20-Sill beam;

[0029] 100 - Protective frame structure; 110 - First longitudinal beam; 120 - Second longitudinal beam; 130 - First transverse beam; 140 - Second transverse beam;

[0030] 200-Battery pack body;

[0031] 300 - Mounting component; 310 - First mounting component; 311 - First connecting plate; 320 - Second mounting component; 321 - Second connecting plate;

[0032] 400 - Seat crossbeam;

[0033] 500 - First gap;

[0034] 600 - Second gap;

[0035] 700 - Battery protection slot.

[0036] 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

[0037] 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 represent 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0041] The battery pack in a hybrid electric vehicle (HEV) is one of the core components of the hybrid electric vehicle's powertrain system. It is mainly used to store and supply electrical energy and coordinate the operation of the engine and the electric motor.

[0042] In existing hybrid vehicles, the battery pack is located on the lower surface of the vehicle floor, between the door sill beams on both sides of the vehicle. In the event of a side collision, the door sill beams can protect the battery pack.

[0043] Since only the door sill beams protect the battery pack, when the vehicle is hit from the front or rear or the door sill beams break, the vehicle floor is prone to significant deformation, and the battery pack is easily squeezed and damaged.

[0044] To address the technical problem that the vehicle floor is prone to significant deformation and the battery pack is easily crushed when the vehicle body is subjected to front or rear collisions or when the sill beam breaks, this application proposes a battery pack structure and a vehicle. The battery pack structure includes a protective frame and a battery pack body. The protective frame is installed on the lower surface of the vehicle floor and is located between the two sill beams of the vehicle body. The protective frame and the vehicle floor enclose a battery protection groove. The battery pack body is installed in the battery protection groove via mounting components, and a first gap exists between the battery pack body and the side wall of the battery protection groove.

[0045] In the battery pack structure of this application, the battery pack body is placed inside the battery protection slot by an mounting assembly. The protective frame body is the side wall of the battery protection slot, and the vehicle floor is the bottom wall of the battery protection slot. At this time, the battery pack body is located in the area enclosed by the protective frame body. The protective frame body plays the role of protecting the battery pack body from all sides. When the vehicle body is hit by a collision from the front, rear, left, or right, the protective frame body plays the role of protecting the battery pack body. Furthermore, since there is a first gap between the battery pack body and the side wall of the battery protection slot, the first gap has a buffering effect. When the protective frame body is hit by a collision, the first gap can prevent the protective frame body from directly colliding with the battery pack body, further preventing the battery pack body from being hit by a collision. In addition, the protective frame body also plays a role of strengthening and supporting the vehicle floor, improving the strength and rigidity of the vehicle floor, and can largely prevent the vehicle floor from deforming after the vehicle body is hit by a collision. This can also prevent the battery pack body from being squeezed or damaged, thereby improving the protection capability and protection strength of the battery pack body.

[0046] The technical solution of the application will be described in detail below with reference to the accompanying drawings and specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0047] Reference Figures 1 to 6 As shown, Figure 1 A schematic diagram of the battery pack structure provided for an embodiment of this application; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction; Figure 4 for Figure 1 A structural diagram from another angle; Figure 5 A schematic diagram of the structure in which the protective frame of the battery pack is installed on the vehicle floor, as provided in the embodiments of this application; Figure 6 This is a structural diagram of the vehicle body floor facing the interior of the vehicle body, provided as an embodiment of this application.

[0048] In the embodiments of this application, reference is made to Figures 1 to 3As shown, a first aspect of the embodiments of this application provides a battery pack structure, including a protective frame 100 and a battery pack body 200.

[0049] The protective frame 100 is installed on the lower surface of the vehicle body floor 10, and the protective frame 100 is located between the two door sill beams 20 of the vehicle body. The protective frame 100 and the vehicle body floor 10 enclose the battery protection groove 700.

[0050] The battery pack body 200 is disposed in the battery protection groove 700 by the mounting assembly 300, and there is a first gap 500 between the battery pack body 200 and the side wall of the battery protection groove 700.

[0051] In the battery pack structure of this application, the protective frame 100 is disposed on the lower surface of the vehicle body floor 10, that is, the protective frame 100 is disposed on the side of the vehicle body floor 10 facing the ground. After the protective frame 100 is disposed on the vehicle body floor 10, the strength and rigidity of the vehicle body floor 10 can be improved, thereby improving the bending rigidity and torsional rigidity of the entire vehicle body. The protective frame 100 and the vehicle body floor 10 enclose and form a battery protection groove 700. At this time, the protective frame 100 is the side wall of the battery protection groove 700, and the vehicle body floor 10 is the bottom wall of the battery protection groove 700.

[0052] Furthermore, since the protective frame 100 is located between the two door sill beams 20 of the vehicle body, when the side of the vehicle body is hit, the door sill beams 20 will protect the protective frame 100, and the protective frame 100 will protect the battery pack body 200. In other words, the door sill beams 20 and the protective frame 100 provide dual protection for the battery pack body 200.

[0053] The battery pack body 200 is installed in the battery protection groove 700 through the mounting component 300. The depth of the battery protection groove 700 can be higher than the height of the battery pack body 200, or lower than or equal to the height of the battery pack body 200. When the depth of the battery protection groove 700 is higher than the height of the battery pack body 200, the battery protection groove 700 provides better protection for the battery pack body 200.

[0054] There is a first gap 500 between the battery pack body 200 and the side wall of the battery protection groove 700, that is, there is a first gap 500 between the battery pack body 200 and the protective frame 100. When the protective frame 100 is impacted, it can prevent the protective frame 100 from directly impacting the battery pack body 200. Furthermore, a buffer layer can be provided at the first gap 500. By providing a buffer layer, the protection of the battery pack body 200 can be further improved.

[0055] The buffer layer can be a buffer pad, honeycomb board, foamed plastic, etc.

[0056] In the battery pack structure of this application, the battery pack body 200 is placed inside the battery protection groove 700 by the mounting assembly 300. The protective frame 100 serves as the side wall of the battery protection groove 700, and the vehicle floor 10 serves as the bottom wall of the battery protection groove 700. At this time, the battery pack body 200 is located within the area enclosed by the protective frame 100. The protective frame 100 protects the battery pack body 200 from all sides. When the vehicle body is subjected to collisions in the front, rear, left, or right, the protective frame 100 provides protection for the battery pack body 200. Furthermore, due to the interaction between the battery pack body 200 and the side wall of the battery protection groove 700... There is a first gap 500 between them. The first gap 500 has a buffering effect. When the protective frame 100 is hit, the first gap 500 can prevent the protective frame 100 from directly hitting the battery pack body 200, further preventing the battery pack body 200 from being hit. In addition, the protective frame 100 also strengthens and supports the vehicle floor 10, improving the strength and rigidity of the vehicle floor 10. It can largely prevent the vehicle floor 10 from deforming after the vehicle body is hit, thereby also preventing the battery pack body 200 from being squeezed or damaged, thus improving the protection capability and protection strength of the battery pack body 200.

[0057] In other embodiments, the protective frame 100 includes a first longitudinal beam 110, a second longitudinal beam 120, a first crossbeam 130, and a second crossbeam 140. The first longitudinal beam 110 and the second longitudinal beam 120 extend in the length direction of the vehicle body, and the first crossbeam 130 and the second crossbeam 140 extend in the width direction of the vehicle body. One end of the first crossbeam 130 is disposed on the first longitudinal beam 110, and the other end of the first crossbeam 130 is disposed on the second longitudinal beam 120. One end of the second crossbeam 140 is disposed on the first longitudinal beam 110, and the other end of the second crossbeam 140 is disposed on the second longitudinal beam 120.

[0058] In this embodiment, the first longitudinal beam 110, the second longitudinal beam 120, the first crossbeam 130, and the second crossbeam 140 are connected to form a frame structure. The first longitudinal beam 110, the second longitudinal beam 120, the first crossbeam 130, and the second crossbeam 140 form the four side walls of the battery protection groove 700. The battery pack body 200 is located between the first longitudinal beam 110 and the second longitudinal beam 120 and has a gap with the first longitudinal beam 110 and the second longitudinal beam 120. This gap is the first gap 500. The battery pack body 200 is also located between the first crossbeam 130 and the second crossbeam 140, and the battery pack body 200 also has a gap with the first longitudinal beam 110 and the second longitudinal beam 120. This gap is also the first gap 500.

[0059] Furthermore, since the extension directions of the first longitudinal beam 110 and the second longitudinal beam 120 are both along the length of the vehicle body, the longitudinal bending stiffness of the vehicle body floor 10 and the entire vehicle body is directly enhanced. This ensures that the first longitudinal beam 110 and the second longitudinal beam 120 can effectively resist bending deformation when the vehicle body floor 10 and the entire vehicle body are on bumpy roads or under load, preventing bending deformation of the vehicle body floor 10 and the entire vehicle body. The first cross beam 130 and the second cross beam 140 form a closed-loop frame by connecting the first longitudinal beam 110 and the second longitudinal beam 120, which significantly improves the torsional stiffness of the vehicle body floor 10 and the entire vehicle body, reducing the risk of torsion of the vehicle body floor 10 and the entire vehicle body when the vehicle is cornering.

[0060] In some embodiments, the mounting assembly 300 includes a first mounting member 310 and a second mounting member 320. One side of the battery pack body 200 is mounted on the first crossbeam 130 via the first mounting member 310, and the opposite side of the battery pack body 200 is mounted on the second crossbeam 140 via the second mounting member 320.

[0061] Because when a vehicle is in motion, the crossbeam is less prone to deformation than the longitudinal beam when driving on rough roads or turning, while the longitudinal beam is more prone to swaying. Furthermore, when the vehicle is hit from the side, the longitudinal beam is easily damaged. Therefore, in this embodiment, the mounting points of the battery pack body 200 are on the first crossbeam 130 and the second crossbeam 140, which can further improve the protection capability and protection strength of the battery pack body 200.

[0062] Specifically, the first mounting component 310 includes at least one first connecting plate 311, and the second mounting component 320 includes at least one second connecting plate 321. One end of the first connecting plate 311 is disposed on the battery pack body 200, and the other end of the first connecting plate 311 is disposed on the first crossbeam 130. One end of the second connecting plate 321 is disposed on the battery pack body 200, and the other end of the second connecting plate 321 is disposed on the second crossbeam 140.

[0063] Furthermore, the first connecting plate 311 and the second connecting plate 321 are integrally formed with the battery pack body 200. The first connecting plate 311 is detachably connected to the first crossbeam 130, and the second connecting plate 321 is detachably connected to the second crossbeam 140, thereby improving the assembly and disassembly efficiency of the battery pack body 200.

[0064] In other embodiments, one end of the mounting component 300 is disposed on the side of the battery pack body 200 facing away from the vehicle floor 10, and the other end of the mounting component 300 is disposed on the side of the protective frame 100 facing away from the vehicle floor 10, so that a second gap 600 is formed between the battery pack body 200 and the vehicle floor 10.

[0065] In this embodiment, the side of the battery pack body 200 facing away from the vehicle floor 10 and the side of the protective frame 100 facing away from the vehicle floor 10 are connected by the mounting component 300, thereby forming a second gap 600 between the battery pack body 200 and the vehicle floor 10. The second gap 600 can improve the heat dissipation effect of the battery pack body 200, and the battery pack body 200 does not have direct contact with the vehicle floor 10, which can avoid the battery pack body 200 being squeezed and damaged due to deformation and damage of the vehicle floor 10, thereby further improving the protection effect of the battery pack body 200.

[0066] In other possible embodiments, the sides of the first crossbeam 130 and the second crossbeam 140 facing the vehicle floor 10 are both welded to the vehicle floor 10 so that the sides of the first crossbeam 130 and the second crossbeam 140 facing the vehicle floor 10 are in contact with the vehicle floor 10.

[0067] In this embodiment, since the sides of the first crossbeam 130 and the second crossbeam 140 facing the vehicle floor 10 are both in contact with the vehicle floor 10, the first crossbeam 130 and the second crossbeam 140 further improve the strength and rigidity of the vehicle floor 10, that is, improve the strength and rigidity of the bottom wall of the battery protection groove 700, thereby further improving the protection effect on the battery pack body 200.

[0068] In other embodiments, a buffer layer is also included, which is disposed between the battery pack body 200 and the sidewall of the battery protection groove 700 to fill the first gap 500.

[0069] In this embodiment, by setting a buffer layer, the protection of the battery pack body 200 can be further improved. The buffer layer can be a buffer pad, a honeycomb panel, foamed plastic, etc.

[0070] In another embodiment, the first longitudinal beam 110, the second longitudinal beam 120, the first crossbeam 130, and the second crossbeam 140 are all welded to the vehicle floor 10.

[0071] In this embodiment, welding forms a rigid connection between the first longitudinal beam 110, the second longitudinal beam 120, the first cross beam 130, and the second cross beam 140 and the vehicle floor 10, constituting a frame structure. This significantly improves the bending stiffness and torsional stiffness of the vehicle body. Furthermore, welding avoids stress concentration and reduces redundant connecting parts, thus meeting the requirements for lightweighting.

[0072] In another possible embodiment, a seat crossbeam 400 is also included, which is disposed on the upper surface of the vehicle floor 10. The seat crossbeam 400 is used to mount the vehicle seat, and the projection of the seat crossbeam 400 toward the battery pack body 200 is at least partially located within the battery pack body 200.

[0073] In this embodiment, since the projection of the seat beam 400 toward the battery pack body 200 is at least partially located within the battery pack body 200, when the side of the vehicle is hit, the seat beam 400 will be hit and squeezed before the battery pack body 200, that is, the seat beam 400 can also protect the battery pack body 200.

[0074] In other embodiments, the first crossbeam 130, the second crossbeam 140, and the seat crossbeam 400 all extend in the same direction. The lengths of the first crossbeam 130 and the second crossbeam 140 are both less than the length of the seat crossbeam 400, and the first crossbeam 130 and the second crossbeam 140 are both located between the two ends of the seat crossbeam 400.

[0075] In this embodiment, when the vehicle is hit from the side, the seat crossbeam 400 will be hit and crushed before the first crossbeam 130 and the second crossbeam 140. That is, the seat crossbeam 400 can also protect the first crossbeam 130 and the second crossbeam 140. Thus, the seat crossbeam 400, the first crossbeam 130 and the second crossbeam 140 provide dual protection for the battery pack body 200.

[0076] In some embodiments, the first longitudinal beam 110 and the second longitudinal beam 120 are both located between the two ends of the seat crossbeam 400.

[0077] In this embodiment, when the vehicle is hit from the side, the seat crossbeam 400 will be hit and crushed before the first longitudinal beam 110 and the second longitudinal beam 120. That is, the seat crossbeam 400 can also protect the first longitudinal beam 110 and the second longitudinal beam 120, thereby further improving the protection effect on the battery pack body 200.

[0078] The second aspect of this application provides a vehicle, including a vehicle body, a vehicle floor 10 disposed on the vehicle body, and a battery pack structure of any of the above embodiments, the battery pack structure being disposed on the vehicle floor 10.

[0079] The vehicle body floor 10 of this application is provided with a battery pack structure of any of the above embodiments. The battery pack structure includes a protective frame 100 and a battery pack body 200. The protective frame 100 is used to be installed on the lower surface of the vehicle body floor 10 and is located between the two door sill beams 20 of the vehicle body. The protective frame 100 and the vehicle body floor 10 enclose a battery protection groove 700. The battery pack body 200 is installed in the battery protection groove 700 by a mounting component 300, and there is a first gap 500 between the battery pack body 200 and the side wall of the battery protection groove 700.

[0080] In the vehicle described in this application, the battery pack body 200 is mounted within the battery protection groove 700 via the mounting assembly 300. The protective frame 100 serves as the side wall of the battery protection groove 700, and the vehicle floor 10 serves as the bottom wall of the battery protection groove 700. At this time, the battery pack body 200 is located within the area enclosed by the protective frame 100, which protects the battery pack body 200 from all sides. When the vehicle body is subjected to collisions in the front, rear, left, or right, the protective frame 100 provides protection for the battery pack body 200. Furthermore, due to the distance between the battery pack body 200 and the side wall of the battery protection groove 700... The first gap 500 has a buffering function. When the protective frame 100 is impacted, the first gap 500 can prevent the protective frame 100 from directly impacting the battery pack body 200, further preventing the battery pack body 200 from being impacted. In addition, the protective frame 100 also strengthens and supports the vehicle floor 10, improving the strength and rigidity of the vehicle floor 10. This can largely prevent the vehicle floor 10 from deforming after the vehicle body is impacted, thereby also preventing the battery pack body 200 from being squeezed or damaged, thus improving the protection capability and protection strength of the battery pack body 200.

[0081] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0082] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A battery pack structure, characterized in that, include: A protective frame (100) is provided on the lower surface of the vehicle body floor (10), and the protective frame (100) is located between the two door sill beams (20) of the vehicle body. The protective frame (100) and the vehicle body floor (10) enclose a battery protection groove (700). The battery pack body (200) is disposed in the battery protection groove (700) by means of the mounting assembly (300), and there is a first gap (500) between the battery pack body (200) and the side wall of the battery protection groove (700).

2. The battery pack structure of claim 1, wherein, The protective frame (100) includes a first longitudinal beam (110), a second longitudinal beam (120), a first crossbeam (130), and a second crossbeam (140). The extension directions of the first longitudinal beam (110) and the second longitudinal beam (120) are both along the length of the vehicle body. The extension directions of the first crossbeam (130) and the second crossbeam (140) are both along the width of the vehicle body. One end of the first crossbeam (130) is disposed on the first longitudinal beam (110), and the other end of the first crossbeam (130) is disposed on the second longitudinal beam (120). One end of the second crossbeam (140) is disposed on the first longitudinal beam (110), and the other end of the second crossbeam (140) is disposed on the second longitudinal beam (120).

3. The battery pack structure of claim 2, wherein, The mounting assembly (300) includes a first mounting member (310) and a second mounting member (320). One side of the battery pack body (200) is mounted on the first crossbeam (130) via the first mounting member (310), and the opposite side of the battery pack body (200) is mounted on the second crossbeam (140) via the second mounting member (320).

4. The battery pack structure of claim 1, wherein, One end of the mounting assembly (300) is disposed on the side of the battery pack body (200) facing away from the vehicle floor (10), and the other end of the mounting assembly (300) is disposed on the side of the protective frame (100) facing away from the vehicle floor (10), so that a second gap (600) is formed between the battery pack body (200) and the vehicle floor (10).

5. The battery pack structure of claim 2, wherein, The sides of the first crossbeam (130) and the second crossbeam (140) facing the vehicle floor (10) are welded to the vehicle floor (10) so that the sides of the first crossbeam (130) and the second crossbeam (140) facing the vehicle floor (10) are in contact with the vehicle floor (10).

6. The battery pack structure according to any one of claims 1 to 5, characterized by, It also includes a buffer layer disposed between the battery pack body (200) and the sidewall of the battery protection groove (700) to fill the first gap (500).

7. The battery pack structure of claim 2, wherein, It also includes a seat crossbeam (400) disposed on the upper surface of the vehicle floor (10), the seat crossbeam (400) being used to mount a vehicle seat, and the projection of the seat crossbeam (400) toward the battery pack body (200) being at least partially located within the battery pack body (200).

8. The battery pack structure of claim 7, wherein, The first crossbeam (130), the second crossbeam (140), and the seat crossbeam (400) all extend in the same direction. The lengths of the first crossbeam (130) and the second crossbeam (140) are both less than the length of the seat crossbeam (400), and the first crossbeam (130) and the second crossbeam (140) are both located between the two ends of the seat crossbeam (400).

9. The battery pack structure of claim 7, wherein, The first longitudinal beam (110) and the second longitudinal beam (120) are both located between the two ends of the seat crossbeam (400).

10. A vehicle, comprising a vehicle body, wherein a vehicle floor (10) is provided on the vehicle body, characterized in that, It also includes a battery pack structure as described in any one of claims 1 to 9, the battery pack structure being disposed on the vehicle floor (10).

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