Battery pack protection cross beam and vehicle

Abstract

The utility model discloses a battery pack protective cross beam and a vehicle, the battery pack protective cross beam comprises a vehicle body floor, a battery pack is arranged on the vehicle body floor, two symmetrically arranged connecting pieces are further arranged on the vehicle body floor, a protective cross beam is arranged between the connecting pieces, the protective cross beam is suspended above the vehicle body floor, and the battery pack is arranged on the vehicle body floor. The protective cross beam is located at the upstream of the battery pack, the protective cross beam comprises a hollow cavity, the two ends of the protective cross beam are provided with end openings of the hollow cavity, each end opening is provided with a sealing end cover, and the sealing end covers and the hollow cavity define a sealing cavity. According to the utility model, the cavity of the protective cross beam is effectively sealed, and any liquid is prevented from entering the cavity of the protective cross beam, so that the problem of later corrosion of the protective cross beam is avoided.

Description

Technical Field

[0001] This utility model relates to a battery pack protective beam, belonging to the field of optical module technology, and particularly to a battery pack protective beam and a vehicle. Background Technology

[0002] In recent years, with the booming development of the new energy vehicle industry, improving vehicle safety performance has become a key focus of the industry. Among these components, the battery pack, as a core component of new energy vehicles, directly affects the overall vehicle safety and the life and property safety of passengers. Currently, most new energy vehicles on the market adopt a chassis-mounted battery pack solution, which requires the vehicle body structure to provide comprehensive protection for the battery pack.

[0003] In battery pack protection systems, the electromagnetic protective beam is a critical component. Because it is installed at the lowest point of the vehicle body, it bears the brunt of impacts from the ground during vehicle operation, providing the first line of defense for the battery pack. However, in practical applications, this protective beam faces significant technical challenges. Especially in the European market, the unique climate and road conditions place even higher demands on the corrosion resistance of its components.

[0004] In existing technologies, electromagnetic shielding beams commonly employ a surface treatment process combining electrophoresis and powder coating. While this process can meet the corrosion resistance requirements of the outer surface, the tubular structure of the beam makes it prone to uneven distribution and insufficient coverage of the electrophoretic liquid during the electrophoresis process. This results in compromised corrosion resistance of the inner surface, severely impacting the product's lifespan and reliability. This technical challenge urgently needs to be addressed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the technical defects existing in the prior art by providing a battery pack protective beam and vehicle, which effectively seals the cavity of the protective beam, preventing any liquid from entering the cavity of the protective beam, thereby avoiding corrosion problems of the protective beam in the later stage.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model discloses a battery pack protective beam, including a vehicle floor, on which a battery pack is disposed, and two symmetrically arranged connectors are also disposed on the vehicle floor. A protective beam is disposed between the connectors, and the protective beam is suspended above the vehicle floor. The protective beam is located upstream of the battery pack. The protective beam includes a hollow cavity, and both ends of the protective beam are provided with end openings that connect to the hollow cavity. A sealing end cap is provided at each end opening, and the sealing end cap and the hollow cavity form a sealed chamber.

[0007] In a preferred embodiment of this utility model, the protective beam is a round tube.

[0008] In a preferred embodiment of the present invention, the connector includes a first connecting plate portion fixedly connected to the vehicle floor and a second connecting plate portion fixedly connected to the protective beam. The second connecting plate portion is located above the first connecting plate portion, and a contoured groove corresponding to the shape of the protective beam is provided on the second connecting plate portion.

[0009] In a preferred embodiment of this utility model, the protective crossbeam is welded into the contour groove.

[0010] In a preferred embodiment of this utility model, the first connecting plate is fixed to the vehicle floor by bolts.

[0011] In a preferred embodiment of this utility model, the protective beam is provided with a bottom guard plate mounting assembly for providing mounting points for connecting the bottom guard plate.

[0012] In a preferred embodiment of the present invention, the bottom guard plate mounting assembly includes a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket being located on different sides of the protective beam.

[0013] In a preferred embodiment of the present invention, the first mounting bracket includes a plurality of brackets, each of which is provided with a riveting hole for connecting the bottom guard plate, and the second mounting bracket includes a single bracket, which is provided with a riveting hole for connecting the bottom guard plate.

[0014] In a preferred embodiment of this utility model, the sealing end cap and the end opening are welded together.

[0015] This utility model also discloses a vehicle that includes a battery pack protective beam.

[0016] The beneficial effects of this utility model are as follows: The battery pack protective beam structure provided by this utility model, by setting sealing end caps at both ends of the protective beam, forms a completely sealed chamber, effectively solving the technical problem that the electrophoretic liquid cannot uniformly cover the inner cavity surface, and significantly improving the corrosion resistance of the protective beam. At the same time, this structural design also has the following multiple advantages:

[0017] First, the protective beam adopts a suspended design and is located upstream of the battery pack, which can effectively absorb and disperse the impact force from the ground, providing reliable safety protection for the battery pack. Second, through the combined design of the first and second connecting plates of the connector, not only is a stable connection between the protective beam and the vehicle floor ensured, but the installation process is also simplified, improving assembly efficiency.

[0018] Furthermore, the bottom guard plate mounting assembly installed on the protective beam, through the rational layout of the first and second mounting brackets, provides reliable mounting points for the bottom guard plate, further enhancing the integrity of the entire protective system. In particular, the design scheme of using multiple first mounting brackets in conjunction with a single second mounting bracket ensures both connection strength and optimizes the overall structural layout.

[0019] Finally, the protective beam adopts a circular tube design, combined with a contoured groove welding fixing method, which not only improves structural strength but also ensures installation accuracy, providing a strong guarantee for the reliability of the entire battery pack protection system. Overall, the battery pack protective beam structure provided by this utility model is reasonably designed, provides reliable protection, is easy to install, and solves the problem of corrosion prevention, thus possessing high practical value. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the protective crossbeam and sealing end cap of this utility model;

[0023] Figure 3 This is a schematic diagram of the protective crossbeam and sealing end cap of this utility model;

[0024] Figure 4 This is a schematic diagram of the protective beam cover of this utility model;

[0025] Figure 5 This is a schematic diagram of the sealing end cap of this utility model;

[0026] Figure 6 This is a schematic diagram of the bottom guard plate mounting assembly of this utility model;

[0027] Figure 7 yes Figure 6 AA section view;

[0028] Figure 8 yes Figure 6 BB cross-sectional view. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0030] like Figure 1-8As shown, this utility model provides a specific embodiment of a battery pack protective beam. The protective beam is installed on the vehicle floor to protect the battery pack mounted on the floor. Specifically, two symmetrically arranged connectors 1 are provided on the vehicle floor, and the protective beam 2 is positioned between these two connectors 1. The protective beam 2 is connected to the vehicle floor via the two connectors 1 and is suspended above the vehicle floor. In particular, the protective beam 2 is located upstream of the battery pack, that is, in front of the battery pack relative to the vehicle's direction of travel. This arrangement ensures that the protective beam 2 is the first to contact any potential obstacles during vehicle movement, thereby providing effective protection for the battery pack.

[0031] In this embodiment, the protective beam 2 adopts a hollow design, specifically a cylindrical structure. This design not only reduces the overall weight but also effectively absorbs impact energy during a collision. Each end of the protective beam 2 has an end opening, and each end opening is fitted with a sealing end cap 3. The sealing end cap 3 is fixedly connected to the end opening of the protective beam 2 by welding, thereby forming a completely sealed chamber inside the protective beam 2. This sealing design effectively prevents electrophoretic fluid from entering the beam, avoiding the problem of uneven internal electrophoresis.

[0032] The structural design of connector 1 is also an important feature of this utility model. For example... Figure 3 As shown, each connector 1 includes two main parts: a first connecting plate 11 and a second connecting plate 12. The first connecting plate 11 is used to connect to the vehicle floor, specifically using a bolt connection method, which facilitates installation and maintenance. The second connecting plate 12 is located above the first connecting plate 11 and is used to connect to the protective beam 2. A contoured groove corresponding to the shape of the protective beam 2 is designed on the second connecting plate 12, and the protective beam 2 is fixed within this contoured groove by welding. This design not only ensures the stability of the connection but also improves installation accuracy.

[0033] To further enhance the integrity of the entire protective system, this embodiment also includes a bottom guard plate mounting assembly on the protective beam 2. This mounting assembly comprises two different types of brackets: a first mounting bracket 4 and a second mounting bracket 5. These two types of brackets are located on different sides of the protective beam 2, providing mounting points for the bottom guard plate. Specifically, there are multiple first mounting brackets 4, evenly distributed on one side of the protective beam 2, each with a rivet hole for connecting the bottom guard plate. Only one second mounting bracket 5 is provided, located on the other side of the protective beam 2, and also has a rivet hole for connecting the bottom guard plate. This bracket layout design ensures connection strength while avoiding excessive connection points that could affect the overall structural simplicity.

[0034] In practical applications, the bottom guard plate is connected to the first mounting bracket 4 and the second mounting bracket 5 through these riveting holes, thus forming a complete protective system. This design not only facilitates the installation and removal of the bottom guard plate, but also ensures the stability and reliability of the entire protective system.

[0035] Furthermore, this utility model also provides a vehicle that utilizes the aforementioned battery pack protective beam. By adopting this battery pack protective beam, the vehicle significantly improves the safety performance of the battery pack. Particularly in markets such as Europe where the corrosion resistance of components is paramount, the use of the sealed end cap 3 effectively solves the problem of poor electrophoresis within the protective beam 2, thereby improving the product's corrosion resistance.

[0036] In this embodiment, the specific dimensions of the protective crossbeam 2 can be adjusted according to actual application requirements. For example, in a preferred embodiment, the diameter of the round tube can be designed to be between 40mm and 80mm, and the wall thickness can be designed to be between 2mm and 5mm. Such dimensions ensure sufficient structural strength without excessively increasing the overall vehicle weight. Simultaneously, the height of the connector 1 can also be adjusted according to actual installation requirements, and it is generally recommended to control it between 100mm and 200mm to ensure that the protective crossbeam 2 is in a suitable protective position.

[0037] It should be noted that the above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Those skilled in the art can make various modifications and improvements to this utility model without departing from its concept and principles, and all such modifications and improvements should fall within the scope of protection of this utility model. For example, the cross-sectional shape of the protective beam 2 can be circular, or it can be elliptical, rectangular, or other suitable shapes; the specific structure of the connecting piece 1 can also be adjusted according to actual needs; and the specific arrangement of the bottom guard plate mounting assembly can also be changed according to the overall vehicle structure requirements.

[0038] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A battery pack protective beam, comprising a vehicle floor, wherein a battery pack is disposed on the vehicle floor, characterized in that, Two symmetrically arranged connectors (1) are also provided on the vehicle floor. A protective beam (2) is provided between the connectors (1). The protective beam (2) is suspended above the vehicle floor. The protective beam (2) is located upstream of the battery pack. The protective beam (2) includes a hollow cavity. Both ends of the protective beam (2) are provided with end openings to the hollow cavity. Each end opening is provided with a sealing end cap (3). The sealing end cap (3) and the hollow cavity form a sealed chamber.

2. The battery pack protective beam according to claim 1, characterized in that, The protective beam (2) is a round pipe.

3. The battery pack protective beam according to claim 2, characterized in that, The connector (1) includes a first connecting plate portion (11) fixed to the vehicle floor and a second connecting plate portion (12) fixed to the protective beam (2). The second connecting plate portion (12) is located above the first connecting plate portion (11), and a contoured groove corresponding to the shape of the protective beam (2) is provided on the second connecting plate portion (12).

4. The battery pack protective beam according to claim 3, characterized in that, The protective crossbeam (2) is welded into the contour groove.

5. The battery pack protective beam according to claim 3, characterized in that, The first connecting plate (11) is fixed to the vehicle floor by bolts.

6. The battery pack protective beam according to claim 1, characterized in that, The protective beam (2) is provided with a bottom guard plate mounting assembly for providing mounting points for connecting the bottom guard plate.

7. The battery pack protective beam according to claim 6, characterized in that, The bottom guard plate mounting assembly includes a first mounting bracket (4) and a second mounting bracket (5), which are located on different sides of the protective beam (2).

8. The battery pack protective beam according to claim 7, characterized in that, The first mounting bracket (4) includes multiple brackets, each of which is provided with a rivet hole for connecting the bottom guard plate. The second mounting bracket (5) includes one bracket, which is provided with a rivet hole for connecting the bottom guard plate.

9. The battery pack protective beam according to claim 1, characterized in that, The sealing end cap (3) and the end opening are welded together.

10. A vehicle, characterized in that, Includes the battery pack protective beam as described in any one of claims 1-9.

Images