Battery pack crash beam and vehicle

Abstract

The application discloses a battery pack anti-collision beam and a vehicle. The battery pack anti-collision beam comprises a base and a protruding block. The rear end of the base is provided with a connecting portion for connecting a side beam of a battery pack shell. The protruding block is arranged on the front side of the base. The front side of the protruding block is arranged towards a side column. In the embodiment provided by the application, the arrangement of the anti-collision beam enables the vehicle to have an additional force transmission path from the side of the vehicle body to the battery pack shell through the battery pack anti-collision beam, and the column intrusion amount is reduced compared with the prior art, thereby greatly reducing the possibility of member injury.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a battery pack anti-collision beam and a vehicle. Background Technology

[0002] In vehicle testing, the side pole impact test is a mandatory crash test. The test is conducted according to C-NCAP procedures, where the vehicle is slid or driven laterally towards a rigid pole, causing a collision between the driver's side and the pole. The injuries sustained by the crash test dummy are measured after the impact, and a crash score is assigned, which serves as an indicator for star rating. To withstand the pole impact test, conventional vehicles require sills and seat crossbeams with sufficient energy absorption to protect occupants from injury. However, improving the energy absorption capacity of sills and seat crossbeams involves complex manufacturing processes and high costs. Summary of the Invention

[0003] The main objective of this invention is to propose a battery pack anti-collision beam and vehicle that can improve the side pole collision performance of a vehicle.

[0004] To achieve the above objectives, the present invention proposes a battery pack anti-collision beam, comprising:

[0005] A base, the rear end of which has a connecting portion for connecting a side beam to the battery pack housing; and,

[0006] A protrusion is provided on the front side of the base, and the front side of the protrusion is positioned facing the side post.

[0007] In one embodiment, the base has two first mounting holes disposed on both sides of the protrusion in the longitudinal direction, and each of the first mounting holes is respectively disposed in the base in the front-back direction.

[0008] In one embodiment, the system further includes two stepped sleeves, which are fitted onto the two first mounting holes in a one-to-one correspondence and are respectively interference-fitted with the corresponding first mounting holes.

[0009] In one embodiment, the lower edge of the base is bent backward to form a mounting side plate, which is used to be attached to the lower side of the side beam. The mounting side plate has a plurality of second mounting holes extending in the vertical direction, and the plurality of second mounting holes are spaced apart in the longitudinal direction.

[0010] In one embodiment, the cross-section of the protrusion in the front-rear direction is gradually tapered from back to front.

[0011] In one embodiment, the upper side of the protrusion extends horizontally, and the lower side of the protrusion is inclined upward from back to front.

[0012] In one embodiment, the battery pack anti-collision beam is formed by extruding an aluminum sheet, the thickness of which is greater than or equal to 1.5 mm and less than or equal to 2.5 mm.

[0013] To achieve the above objectives, the present invention provides a vehicle comprising:

[0014] The battery pack housing has side beams; and,

[0015] The battery pack anti-collision beam described above is located on the side beam.

[0016] In one embodiment, the vehicle includes a sill inner panel and a floor longitudinal beam spaced apart in the front and rear directions, and a connecting beam assembly extending between the sill inner panel and the floor longitudinal beam, the connecting beam assembly being disposed behind the side pillars, and the battery pack anti-collision beam being disposed below the connecting beam assembly.

[0017] In one embodiment, the vehicle further includes a first seat crossbeam and a second seat crossbeam that connect the inner sill plate and the floor longitudinal beam and extend in the front-rear direction, respectively. The connecting beam assembly includes a first connecting beam that connects the first seat crossbeam, the inner sill plate and the floor longitudinal beam, a second connecting beam that connects the second seat crossbeam, the inner sill plate and the floor longitudinal beam, and a third connecting beam that connects the inner sill plate and the floor longitudinal beam. The third connecting beam is disposed between the first connecting beam and the second connecting beam.

[0018] The battery pack anti-collision beam provided by this invention includes a base and a protrusion. The rear end of the base has a connecting portion for connecting to the side beam of the battery pack housing. The protrusion protrudes from the front side of the base, and the front side of the protrusion is oriented towards the side pillar. In the embodiment provided by this invention, the anti-collision beam adds a force transmission path from the side of the vehicle body through the battery pack anti-collision beam to the battery pack housing, reducing the pillar impact intrusion amount compared to the prior art and significantly reducing the possibility of occupant injury. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a partial three-dimensional structural schematic diagram of a vehicle according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1A three-dimensional structural diagram of the battery pack anti-collision beam and the battery pack shell;

[0022] Figure 3 for Figure 1 A schematic diagram of the force transmission path of the anti-collision beam of the battery pack;

[0023] Figure 4 for Figure 1 A three-dimensional structural diagram of the anti-collision beam of the battery pack;

[0024] Figure 5 for Figure 4 Sectional view at point AA;

[0025] Figure 6 for Figure 1 Exploded view of the installation structure of the battery pack anti-collision beam;

[0026] Figure 7 for Figure 1 Cross-sectional view of the force transmission path of the anti-collision beam of the battery pack;

[0027] Figure 8 for Figure 7 Exploded view of the central anti-collision beam and battery pack housing;

[0028] Figure 9 for Figure 1 Top view of a partial structure of the vehicle;

[0029] Figure 10 for Figure 9 A bottom view of a partial structure of the vehicle.

[0030] Explanation of icon numbers:

[0031] 100 Battery pack anti-collision beam 300 Side pillars 200 Battery pack casing 400 Inner door sill panel 201 edge beam 500 Floor beams 10 base 600 First seat crossbeam 20 bump 700 Second seat crossbeam 11 First mounting hole 31 First connecting beam 12 Second mounting hole 32 Second connecting beam 13 Stepped sleeve 33 Third connecting beam 14 Install side plate

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this invention 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 by this invention.

[0036] Please see Figures 1 to 10 This invention provides a battery pack anti-collision beam 100 and a vehicle including the battery pack anti-collision beam 100. The vehicle is a new energy vehicle equipped with a battery pack, which is housed in a battery pack housing 200 located at the bottom of the vehicle. It is understood that the battery pack housing 200, in order to protect the battery, typically possesses superior anti-collision performance, high rigidity, and increased strength. Therefore, in the embodiment provided in this application, the battery pack housing 200 is equipped with a battery pack anti-collision beam 100. Based on the existing side collision force transmission path, the battery pack anti-collision beam 100 adds an additional force transmission path towards the battery pack housing 200, thereby further enhancing the anti-collision performance of the vehicle's side pillars 300. The vehicle provided by this invention has a reduced intrusion amount into the side pillars 300 compared to the prior art, significantly reducing the possibility of injury to occupants.

[0037] Specifically, please refer to Figures 1 to 4 The battery pack housing 200 has a side beam 201 and a bottom plate. The battery pack anti-collision beam 100 is used to install on the battery pack housing 200. Specifically, the side beam 201 installed on the battery pack housing 200 has a strong structure and can firmly fix the battery pack anti-collision beam 100. On the other hand, the side beam 201 has high rigidity and can effectively transmit the force to the bottom plate of the battery pack housing 200, thereby achieving a good energy absorption effect and reducing the intrusion of the side column 300 when it is impacted.

[0038] It should be noted that in this invention, the front-to-back direction is generally parallel to the width direction of the vehicle body, with "forward" referring to the direction towards the outer side of the vehicle body and "rearward" referring to the direction towards the inner side of the vehicle body. The longitudinal direction is generally perpendicular to the front-to-back direction and generally parallel to the length direction of the vehicle, with both the front-to-back and longitudinal directions extending generally horizontally. It should also be noted that in the embodiments provided by this invention, the directional indications only apply to the description of the vehicle in its normal use state after assembly, and do not include descriptions of the vehicle during manufacturing, assembly, transportation, etc.

[0039] Please continue reading. Figures 2 to 4 The battery pack anti-collision beam 100 includes a base 10 and a protrusion 20. The rear end of the base 10 has a connecting portion for connecting the side beam 201 of the battery pack housing 200. The protrusion 20 protrudes from the front side of the base 10, and the front side of the protrusion 20 is positioned facing the side post 300. In the embodiments provided by the present invention, please refer to... Figure 3 and Figure 7 Compared to the existing technology's force transmission path from the inner sill plate 400 to the first seat crossbeam 600 and the second seat crossbeam 700, the embodiment provided by this invention utilizes the battery pack anti-collision beam 100 to add a force transmission path from the side of the vehicle body through the battery pack anti-collision beam 100 to the battery pack housing 200. This reduces the pole impact intrusion compared to existing technologies, significantly lowering the possibility of occupant injury. The distance between the protrusion 20 and the vehicle side structure, such as the side pillar 300 and / or the body panel, is approximately 5mm. Thus, when the side of the vehicle body is impacted, the deformation allows it to contact the protrusion 20, transmitting the impact force to the battery pack housing 200. This allows the battery pack housing 200 to participate in the energy absorption process, reducing the intrusion of the vehicle body. In one embodiment, it has been verified that this arrangement reduces the intrusion of the side pillar 300 by approximately 20% when the vehicle's side is impacted, thereby significantly improving vehicle safety performance. Meanwhile, the base 10 is preferably detachably connected to the side beam 201 so that the battery pack anti-collision beam 100 can be easily replaced after being hit.

[0040] There are various ways to connect the base 10 to the side beam 201, such as welding it to the side beam 201. In this embodiment, the base 10 has two first mounting holes 11 located on both sides of the protrusion 20 in the longitudinal direction, and each first mounting hole 11 extends through the base 10 in the front-rear direction. The first mounting holes 11 are used for bolts to pass through, so that the base 10 is fixed to the side beam 201 by screwing.

[0041] Based on the previous embodiment, please refer to Figure 4 and Figure 5The battery pack anti-collision beam 100 further includes two stepped sleeves 13, which are correspondingly fitted into the two first mounting holes 11 and respectively have an interference fit with the corresponding first mounting holes 11. In this embodiment, the stepped sleeves 13 serve two purposes: firstly, to guide and limit the bolts, preventing the battery pack anti-collision beam 100 from being deformed under pressure during installation; secondly, the interference fit between the stepped sleeves 13 and the corresponding first mounting holes 11 prevents them from falling out of the first mounting holes 11.

[0042] To strengthen the connection between the battery pack anti-collision beam 100 and the battery pack housing 200, the lower edge of the base 10 is bent backward to form a mounting side plate 14. The mounting side plate 14 is used to attach to the lower side of the side beam 201. The mounting side plate 14 has a plurality of second mounting holes 12 extending in the vertical direction, and the plurality of second mounting holes 12 are spaced apart in the longitudinal direction. In this embodiment, the addition of the mounting side plate 14 makes the battery pack anti-collision beam 100 better fixed to the battery pack housing 200, and the mounting side plate 14 participates in the force transmission process, making the force on the side beam 201 more uniform, and can better transmit the collision force to the side beam 201 and the base plate of the battery pack housing 200.

[0043] Please continue reading. Figure 4 and Figure 7 On the one hand, in order to prevent the battery pack anti-collision beam 100 from being exposed and improve the aesthetics of the vehicle, and on the other hand, to disperse the collision force, in one embodiment, the cross section of the protrusion 20 in the front-rear direction is gradually reduced from back to front.

[0044] Please continue reading. Figure 7 Preferably, the upper side of the protrusion 20 extends horizontally, and the lower side of the protrusion 20 is inclined upward from back to front. This prevents the protrusion 20 from being exposed on the vehicle body shell, resulting in a more aesthetically pleasing appearance.

[0045] The battery pack anti-collision beam 100 preferably has a hollow structure to ensure its strength while reducing the vehicle's weight. Furthermore, localized deformation of the battery pack anti-collision beam 100 also has an energy-absorbing effect. Preferably, the battery pack anti-collision beam 100 is extruded from an aluminum sheet with a thickness greater than or equal to 1.5 mm and less than or equal to 2.5 mm. More preferably, the thickness of the aluminum sheet is 2.0 mm.

[0046] Based on the above embodiments, please refer to Figure 9 and Figure 10The vehicle provided by this invention also includes a sill inner panel 400 and a floor longitudinal beam 500 spaced apart in the front-rear direction, and a connecting beam assembly extending between the sill inner panel 400 and the floor longitudinal beam 500. The connecting beam assembly is correspondingly located behind the side pillar 300, and the battery pack anti-collision beam 100 is located below the connecting beam assembly. In this embodiment, the connecting beam assembly plays a force transmission role, transmitting the collision force received by the side of the vehicle body to the floor longitudinal beam 500, and further transmitting it to the first seat crossbeam 600 and the second seat crossbeam 700 via the floor longitudinal beam 500. It can be understood that the first seat crossbeam 600 and the second seat crossbeam 700 are generally used to fix the seats and have a relatively high height. In this way, the connection between various components of the vehicle is strengthened, resulting in better frame rigidity, better anti-collision performance, reduced deformation upon impact, and protection of the occupants.

[0047] Based on the previous embodiment, the vehicle further includes a first seat crossbeam 600 and a second seat crossbeam 700 that connect the inner sill plate 400 and the floor longitudinal beam 500 and extend in the front-rear direction, respectively. The connecting beam assembly includes a first connecting beam 31 connecting the first seat crossbeam 600, the inner sill plate 400, and the floor longitudinal beam 500; a second connecting beam 32 connecting the second seat crossbeam 700, the inner sill plate 400, and the floor longitudinal beam 500; and a third connecting beam 33 connecting the inner sill plate 400 and the floor longitudinal beam 500. The third connecting beam 33 is disposed between the first connecting beam 31 and the second connecting beam 32. In this embodiment, the connection between the various components of the vehicle is strengthened by the arrangement of the first connecting beam 31, the second connecting beam 32, and the third connecting beam 33, resulting in better frame rigidity, better collision resistance, reduced deformation upon impact, and protection of the occupants.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A battery pack anti-collision beam, characterized in that, include: A base, the rear end of which has a connecting portion for connecting a side beam to the battery pack housing; and, A protrusion is provided on the front side of the base, and the front side of the protrusion is oriented towards the side post; The base has two first mounting holes located on both sides of the protrusion in the longitudinal direction, and each first mounting hole is respectively disposed in the base in the front-back direction; It also includes two stepped sleeves, which are fitted one-to-one into the two first mounting holes and are respectively interference-fitted with the corresponding first mounting holes; The lower edge of the base is bent backward to form a mounting plate. The mounting plate is used to attach to the lower side of the side beam. The mounting plate has a plurality of second mounting holes running through it in the vertical direction. The plurality of second mounting holes are spaced apart in the longitudinal direction.

2. The battery pack anti-collision beam as described in claim 1, characterized in that, The cross-section of the protrusion in the front-to-back direction is gradually tapered from back to front.

3. The battery pack anti-collision beam as described in claim 2, characterized in that, The upper side of the protrusion extends horizontally, and the lower side of the protrusion is inclined upward from back to front.

4. The battery pack anti-collision beam as described in claim 1, characterized in that, The battery pack anti-collision beam is formed by extruding aluminum sheet, and the thickness of the aluminum sheet is greater than or equal to 1.5 mm and less than or equal to 2.5 mm.

5. A vehicle, characterized in that, include: The battery pack housing has side beams; as well as, The battery pack anti-collision beam as described in any one of claims 1 to 4 is provided on the side beam.

6. The vehicle as described in claim 5, characterized in that, It includes a threshold inner panel and a floor longitudinal beam arranged at intervals in the front and rear directions, and a connecting beam group extending between the threshold inner panel and the floor longitudinal beam, the connecting beam group being located behind the side column, and the battery pack anti-collision beam being located below the connecting beam group.

7. The vehicle as described in claim 6, characterized in that, It also includes a first seat crossbeam and a second seat crossbeam that connect the inner sill plate and the floor longitudinal beam and extend in the front-rear direction, respectively. The connecting beam group includes a first connecting beam that connects the first seat crossbeam, the inner sill plate and the floor longitudinal beam, a second connecting beam that connects the second seat crossbeam, the inner sill plate and the floor longitudinal beam, and a third connecting beam that connects the inner sill plate and the floor longitudinal beam. The third connecting beam is disposed between the first connecting beam and the second connecting beam.

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