New energy automobile battery protection structure

Abstract

The utility model belongs to a new energy automobile battery protection structure in the technical field of new energy automobiles. The battery pack protection beam (7) comprises a doorsill connecting plate (1), an auxiliary frame connecting plate (2) and a protection rod (3), the doorsill connecting plate (1) is connected to the position of a protection rod end (13) of the protection rod (3), the auxiliary frame connecting plate (2) is connected to the position of a protection plate body (14) of the protection rod (3), the auxiliary frame connecting plate (2) is connected with a front auxiliary frame (6), and the doorsill connecting plate (1) is connected with an A column inner plate (8). The new energy automobile battery protection structure is simple in structure and capable of effectively changing a force transmission path from the front portion of an automobile body to an automobile body threshold, dispersing collision force, reducing the risk that a battery pack is extruded and collided after collision, effectively protecting the battery pack and improving the safety performance of the whole automobile.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy vehicles, and more specifically, it relates to a battery protection structure for new energy vehicles. Background Art

[0002] With the substantial increase in the market share of new energy vehicles, the safety performance of electric vehicles has received more and more attention. During daily driving, there are inevitably many new energy vehicles that catch fire due to battery pack damage caused by collisions or driving over low-lying roads, which further endangers the lives and property of passengers. The research on the battery pack protection structure can greatly improve the safety performance of pure electric vehicles during driving. The existing battery pack protection structure mainly adds a protection beam to prevent the battery pack from being bumped. However, the existing structure only has the function of reminding when the battery pack is bumped, and has no function of transmitting collision force and resisting collision.

[0003] There is a technology in the prior art with the name of "a protection structure for an automotive battery pack" and a publication number of "CN215971081U". This technology relates to a protection structure for an automotive battery pack, including a protection baffle and an anti-collision beam. One side of the protection baffle is connected to the battery pack of the vehicle, and the other side of the protection baffle is provided with the anti-collision beam. The anti-collision beam is connected to the front subframe of the vehicle. The anti-collision beam is a hollow structure, and the protection baffle and the anti-collision beam cooperate to buffer the impact force of the front subframe. The above technical solution can, by arranging a protection structure for an automotive battery pack including a protection baffle and an anti-collision beam between the battery pack of the vehicle and the front subframe, play a good buffering role in the event of an accidental collision of the automotive battery pack, prevent the automotive battery pack from being easily damaged when an accidental impact occurs, and avoid unpredictable dangers. When the protection structure for the automotive battery pack is damaged, it only needs to disassemble the protection structure for the automotive battery pack, and the disassembly is convenient and the maintenance cost is low.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is: aiming at the deficiencies of the prior art, to provide a new energy vehicle battery protection structure with a simple structure, which can effectively change the force transmission path from the front of the vehicle body to the vehicle body sill, disperse the collision force, reduce the risk of the battery pack being squeezed and bumped after the collision is shifted, play an effective protection role for the battery pack, and improve the safety performance of the whole vehicle.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present utility model is:

[0007] The utility model relates to a battery protection structure for a new energy vehicle. The battery pack protection beam includes a sill connecting plate, a subframe connecting plate, and a protection rod. The sill connecting plate is connected to the end position of the protection rod of the protection rod, the subframe connecting plate is connected to the body position of the protection plate of the protection rod, the subframe connecting plate is connected to the front subframe, and the sill connecting plate is connected to the inner panel of the A-pillar.

[0008] The said sill connecting plate is in a Z-shaped structure, and the subframe connecting plate is in a U-shaped structure.

[0009] One end of the protection rod is connected to a sill connecting plate at the end of the protection rod, and the other end of the protection rod is connected to another sill connecting plate at the end of the protection rod.

[0010] One subframe connecting plate is connected to the body position of the protection plate of the protection rod near one end of the protection rod, and the other subframe connecting plate is connected to the body position of the protection plate of the protection rod near the other end of the protection rod.

[0011] One sill connecting plate of the protection rod is connected to the left inner panel of the A-pillar, and the other sill connecting plate of the protection rod is connected to the right inner panel of the A-pillar.

[0012] The left inner panel of the A-pillar is connected to the rear section of the left side of the front longitudinal beam, and the right inner panel of the A-pillar is connected to the rear section of the right side of the front longitudinal beam.

[0013] One side of the front subframe is connected to the front section of the left side of the front longitudinal beam, and the other side of the front subframe is connected to the front section of the right side of the front longitudinal beam.

[0014] The battery pack is connected to the rear section of the left side of the front longitudinal beam and the rear section of the right side of the front longitudinal beam. Multiple rear cross beams of the front longitudinal beam are also arranged between the rear section of the left side of the front longitudinal beam and the rear section of the right side of the front longitudinal beam, and rear longitudinal beams of the front longitudinal beam are arranged between the multiple rear cross beams of the front longitudinal beam.

[0015] The front section of the left side of the front longitudinal beam and the front section of the right side of the front longitudinal beam are connected to the front anti-collision beam.

[0016] Adopting the technical solution of the utility model, the working principle and beneficial effects are as follows:

[0017] For the battery protection structure of the new energy vehicle described in the utility model, a battery pack protection beam is manufactured. The battery pack protection beam includes a sill connecting plate, a subframe connecting plate, and a protection rod. The sill connecting plate, the subframe connecting plate, and the protection rod are connected by welding. The sill connecting plate is connected to the end position of the protection rod of the protection rod, the subframe connecting plate is connected to the body position of the protection plate of the protection rod, the subframe connecting plate is connected to the front subframe, and the sill connecting plate is connected to the inner panel of the A-pillar. In this way, the battery pack protection beam connects the front subframe and the inner panel of the A-pillar, adding a force transmission and induction path, transmitting the collision force of the front subframe to the left inner sill and the right inner sill of the vehicle body, realizing the dispersion of the collision force, and further reducing the risk of the front subframe moving backward after a collision and squeezing the battery pack. Brief Description of the Drawings

[0018] The following briefly describes the content expressed by each drawing in this specification and the markings in the drawings:

[0019] Figure 1 It is a schematic structural diagram of the battery pack protection beam of the new energy vehicle battery protection structure described in the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the sill connecting plate of the new energy vehicle battery protection structure described in the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the subframe connecting plate of the new energy vehicle battery protection structure described in the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the vehicle frame described in the present utility model;

[0023] Figure 5 It is a schematic diagram of the force transmission path of the new energy vehicle battery protection structure described in the present utility model;

[0024] Figure 6 It is a schematic diagram of the force transmission path of the vehicle frame in the prior art;

[0025] The markings in the drawings are respectively: 1 - sill connecting plate; 2 - subframe connecting plate; 3 - protection bar; 4 - front anti-collision beam; 5 - front left longitudinal beam front section; 6 - front subframe; 7 - battery pack protection beam; 8 - inner A-pillar panel; 9 - front left longitudinal beam rear section; 10 - rear cross beam of the front longitudinal beam; 11 - left inner sill; 12 - battery pack; 13 - end of the protection bar; 14 - protection plate body; 15 - left inner A-pillar panel; 16 - right inner A-pillar panel; 17 - front right longitudinal beam front section; 18 - front right longitudinal beam rear section; 19 - rear longitudinal beam of the front longitudinal beam. Detailed Description of the Preferred Embodiment

[0026] The following further describes in detail the specific embodiments of the present utility model, such as the shapes, structures of the components involved, the mutual positions and connection relationships between the parts, the functions of the parts and the working principles, etc., with reference to the drawings:

[0027] As shown in the attached Figure 1 - attached Figure 5As shown in the figure, the utility model relates to a battery protection structure for a new energy vehicle. The battery pack protection beam 7 includes a sill connecting plate 1, a subframe connecting plate 2, and a protection rod 3. The sill connecting plate 1 is connected to the position of the protection rod end 13 of the protection rod 3, and the subframe connecting plate 2 is connected to the position of the protection plate body 14 of the protection rod 3. The subframe connecting plate 2 is connected to the front subframe 6, and the sill connecting plate 1 is connected to the inner panel 8 of the A-pillar. For the deficiencies in the prior art, the above structure proposes an improved technical solution. When setting up the structure, the battery pack protection beam 7 is manufactured. The battery pack protection beam 7 includes a sill connecting plate 1, a subframe connecting plate 2, and a protection rod 3. The sill connecting plate 1, the subframe connecting plate 2, and the protection rod 3 are connected by welding. The sill connecting plate 1 is connected to the position of the protection rod end 13 of the protection rod 3, and the subframe connecting plate 2 is connected to the position of the protection plate body 14 of the protection rod 3. The subframe connecting plate 2 is connected to the front subframe 6, and the sill connecting plate 1 is connected to the inner panel 8 of the A-pillar. In this way, the battery pack protection beam 7 connects the front subframe 6 and the inner panel 8 of the A-pillar, adding a force transmission induction path, transmitting the collision force of the front subframe 6 to the left inner sill and the right inner sill of the vehicle body, realizing the dispersion of the collision force, and further reducing the risk that the front subframe 6 moves backward after a collision and squeezes the battery pack 12. The battery protection structure for a new energy vehicle described in the utility model has a simple structure, can effectively change the force transmission path from the front of the vehicle body to the vehicle body sill, disperse the collision force, reduce the risk of the battery pack being squeezed and knocked after the collision moves backward, effectively protect the battery pack, and improve the safety performance of the whole vehicle.

[0028] The described sill connecting plate 1 is in a Z-shaped structure, and the subframe connecting plate 2 is in a U-shaped structure. In the above structure, the main structure protection rod 3 of the battery pack protection beam 7 is a national standard steel section or an aluminum section, which is convenient to purchase and has a low cost. The protection rod 3 is connected to the sill connecting plate 1 and the subframe connecting plate 2 by CO2 shielded welding or by bolts to ensure the reliability of the structure.

[0029] One end of the protection rod 3, the protection rod end 13, is connected to a sill connecting plate 1, and the other end of the protection rod 3, the protection rod end 13, is connected to another sill connecting plate 1. In the above structure, after the battery pack protection beam 7 is connected in place, a collision induction force transmission path is added.

[0030] One subframe connecting plate 2 is connected to the position of the protection plate body 14 of the protection bar 3 near one end of the protection bar end 13, and another subframe connecting plate 2 is connected to the position of the protection plate body 14 of the protection bar 3 near the other end of the protection bar end 13. One sill connecting plate 1 of the protection bar 3 is connected to the left A-pillar inner panel 15, and another sill connecting plate 1 of the protection bar 3 is connected to the right A-pillar inner panel 16. The left A-pillar inner panel 15 is connected to the rear section of the left side of the front longitudinal beam 9, and the right A-pillar inner panel 16 is connected to the rear section of the right side of the front longitudinal beam 18. One side of the front subframe 6 is connected to the front section of the left side of the front longitudinal beam 5, and the other side of the front subframe 6 is connected to the front section of the right side of the front longitudinal beam 17. In the above structure, the left and right sides of the vehicle body are symmetrically arranged, and the battery pack protection beam 7 is also symmetrically arranged, which is convenient for the front section of the right side of the front longitudinal beam 17 to reliably connect the left and right sides of the corresponding components of the vehicle body, and the force transmission is reliable.

[0031] The battery pack 12 is connected to the rear section of the left side of the front longitudinal beam 9 and the rear section of the right side of the front longitudinal beam 18. Multiple front longitudinal beam rear crossbeams 10 are also arranged between the rear section of the left side of the front longitudinal beam 9 and the rear section of the right side of the front longitudinal beam 18. The front longitudinal beam rear longitudinal beam 19 is arranged between the multiple front longitudinal beam rear crossbeams 10. In the above structure, the front longitudinal beam rear crossbeams 10 and the front longitudinal beam rear longitudinal beam 19 effectively improve the strength of the vehicle body.

[0032] The front section of the left side of the front longitudinal beam 5 and the front section of the right side of the front longitudinal beam 17 are connected to the front anti-collision beam 4.

[0033] For the new energy vehicle battery protection structure described in the present utility model, the battery pack protection beam 7 is manufactured. The battery pack protection beam 7 includes a sill connecting plate 1, a subframe connecting plate 2, and a protection bar 3. The sill connecting plate 1, the subframe connecting plate 2, and the protection bar 3 are connected by welding. The sill connecting plate 1 is connected to the position of the protection bar end 13 of the protection bar 3, the subframe connecting plate 2 is connected to the position of the protection plate body 14 of the protection bar 3, the subframe connecting plate 2 is connected to the front subframe 6, and the sill connecting plate 1 is connected to the A-pillar inner panel 8. In this way, the battery pack protection beam 7 connects the front subframe 6 and the A-pillar inner panel 8, adding a force transmission induction path, transmitting the collision force of the front subframe 6 to the left inner sill 11 and the right inner sill positions of the vehicle body, realizing the dispersion of the collision force, and further reducing the risk that the front subframe 6 moves backward after a collision and squeezes the battery pack 12.

[0034] The above has made an exemplary description of the present utility model in conjunction with the drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A new energy vehicle battery protection structure, characterized in that: The battery pack protection beam (7) comprises a door sill connection plate (1), a subframe connection plate (2), and a protection bar (3); the door sill connection plate (1) is connected to a protection bar end (13) of the protection bar (3); the subframe connection plate (2) is connected to a protection plate body (14) of the protection bar (3); the subframe connection plate (2) is connected to a front subframe (6); and the door sill connection plate (1) is connected to an A-pillar inner plate (8).

2. The new energy vehicle battery protection structure according to claim 1 is characterized in that: The door sill connecting plate (1) is in a Z-shaped structure, and the auxiliary frame connecting plate (2) is in a U-shaped structure.

3. The new energy vehicle battery protection structure according to claim 1 or 2, characterized in that: One end of the protective rod (3) is connected to a threshold connecting plate (1), and the other end of the protective rod (3) is connected to another threshold connecting plate (1).

4. The new energy vehicle battery protection structure according to claim 3 is characterized in that: The protective plate body (14) of the protective rod (3) is connected to a sub-frame connecting plate (2) near a protective rod end (13) at one end, and the protective plate body (14) of the protective rod (3) is connected to another sub-frame connecting plate (2) near a protective rod end (13) at the other end.

5. The new energy vehicle battery protection structure according to claim 4 is characterized in that: One threshold connecting plate (1) of the protection bar (3) is connected to the left A-pillar inner plate (15), and the other threshold connecting plate (1) of the protection bar (3) is connected to the right A-pillar inner plate (16).

6. The new energy vehicle battery protection structure according to claim 5 is characterized in that: The left A-pillar inner plate (15) is connected to the left rear section (9) of the front longitudinal beam, and the right A-pillar inner plate (16) is connected to the right rear section (18) of the front longitudinal beam.

7. The new energy vehicle battery protection structure according to claim 1 or 2, characterized in that: One side of the front subframe (6) is connected to the left front section (5) of the front longitudinal beam, and the other side of the front subframe (6) is connected to the right front section (17) of the front longitudinal beam.

8. The new energy vehicle battery protection structure according to claim 6 is characterized in that: The battery pack (12) is connected to the left rear section (9) of the front longitudinal beam and the right rear section (18) of the front longitudinal beam. A plurality of front longitudinal beam rear cross beams (10) are arranged between the left rear section (9) of the front longitudinal beam and the right rear section (18) of the front longitudinal beam. A front longitudinal beam rear longitudinal beam (19) is arranged between the plurality of front longitudinal beam rear cross beams (10).

9. The new energy vehicle battery protection structure according to claim 7, characterized in that: The left front section (5) of the front longitudinal beam and the right front section (17) of the front longitudinal beam are connected to the front anti-collision beam (4).

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