Automobile light-weight battery pack bottom protection plate

Abstract

The utility model relates to the technical field of battery pack bottom guard plates, in particular to an automobile lightweight battery pack bottom guard plate which is characterized in that a plurality of mounting holes are fixedly formed in the edge of the surface of a first bottom guard plate, and a plurality of first heat dissipation holes are fixedly formed in the middle of the surface of the first bottom guard plate; double-layer protection can be carried out on the battery pack through the first bottom protection plate and the second bottom protection plate, the protection performance can be improved, the first bottom protection plate and the second bottom protection plate are elastically connected through the elastic bases, the springs and the elastic columns, and therefore when the bottom of the battery pack is impacted by broken stones or the bottom is supported, the second bottom protection plate is impacted firstly; and after the second bottom protection plate is subjected to impact force, the springs can be compressed and deformed, the elastic columns can elastically move in the elastic seats, so that the second bottom protection plate can elastically move between the frame bodies, the impact force can be buffered through the elastic movement of the second bottom protection plate, and the protection performance can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of battery pack bottom protection plate technology, and in particular to a lightweight automotive battery pack bottom protection plate. Background Technology

[0002] With the rapid development of automation and intelligence, electric vehicles are becoming increasingly popular and purchased. As electric vehicle sales increase and usage frequency increases, driving conditions and usage scenarios are becoming more complex and varied. Typically, a bottom protection plate is installed at the bottom of the battery pack to protect it from damage caused by gravel impacts or the bottom of the vehicle hitting the ground. Therefore, safety protection faces more severe challenges.

[0003] However, traditional battery pack underbody protection plates offer poor protection and cannot buffer impact forces. Furthermore, when installed on the battery pack, the plate is in close contact with the battery pack surface, making it difficult for heat generated on the battery pack surface to dissipate, resulting in poor heat dissipation. Therefore, we propose a lightweight automotive battery pack underbody protection plate to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the prior art by proposing a lightweight battery pack bottom protection plate for automobiles.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a lightweight battery pack bottom protection plate for automobiles, comprising: a first bottom protection plate, mounting holes, first heat dissipation holes, a frame, elastic seats, springs, elastic pillars, a second bottom protection plate, and second heat dissipation holes. Several mounting holes are fixedly installed at the edges of the surface of the first bottom protection plate. Several first heat dissipation holes are fixedly installed in the middle of the surface of the first bottom protection plate. A frame is fixedly installed at the front edge of the first bottom protection plate. Several elastic seats are fixedly installed on the inner side of the frame edge. Springs are fixedly installed inside each elastic seat. Elastic pillars are fixedly installed at the tail ends of each spring, and the springs extend movably to the outside of the elastic seats. A second bottom protection plate is movably installed on the outer side of the frame, and the top of each elastic pillar is fixedly connected to the inner wall of the second bottom protection plate. Several second heat dissipation holes are fixedly installed on the surface of the second bottom protection plate.

[0006] Preferably, the first bottom guard plate corresponds to the second bottom guard plate.

[0007] Preferably, the inner side of the second bottom guard plate is adapted to the frame, and the first bottom guard plate and the second bottom guard plate are elastically connected by an elastic seat, a spring, and an elastic column.

[0008] Preferably, the first heat dissipation hole and the second heat dissipation hole are arranged in an array structure, and the first heat dissipation hole and the second heat dissipation hole are staggered.

[0009] Preferably, the middle part of the first bottom protective plate has a concave structure.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] The battery pack can be double-protected by the first and second bottom protective plates, which can improve the protection performance. The first and second bottom protective plates are elastically connected by elastic seats, springs, and elastic columns. When the bottom of the battery pack is impacted by gravel or the bottom is hit by the bottom, the second bottom protective plate will be impacted first. After the second bottom protective plate is impacted, the spring will compress and deform, and the elastic column will move elastically within the elastic seat. This allows the second bottom protective plate to move elastically between the frames. The elastic movement of the second bottom protective plate can buffer the impact force and further improve the protection performance.

[0012] The first bottom guard plate has a concave structure in the middle, which prevents its surface from contacting the battery pack surface. This creates an equidistant gap between the first bottom guard plate and the battery pack, facilitating heat dissipation from the battery pack surface. When the vehicle is moving, airflow is generated under the vehicle through the first and second heat dissipation holes. This airflow flows through the second heat dissipation holes into the space between the first and second bottom guard plates. The airflow then contacts the battery pack surface through the first heat dissipation holes, thus dissipating the heat generated on the battery pack surface and improving heat dissipation efficiency. Attached Figure Description

[0013] Figure 1 This is a front view of the entire utility model;

[0014] Figure 2 This is a schematic diagram of the overall back structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the first protective plate structure of the entire utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the second protective plate of this utility model;

[0017] Figure 5 It is the whole of this utility model Figure 1 Top view of the cross-sectional structure;

[0018] Figure 6 It is the whole of this utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. First bottom protective plate; 2. Mounting hole; 3. First heat dissipation hole; 4. Frame; 5. Elastic seat; 6. Spring; 7. Elastic column; 8. Second bottom protective plate; 9. Second heat dissipation hole. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] like Figure 1-6 The illustrated lightweight battery pack bottom protection plate for automobiles includes: a first bottom protection plate 1, mounting holes 2, first heat dissipation holes 3, a frame 4, elastic seats 5, springs 6, elastic pillars 7, a second bottom protection plate 8, and second heat dissipation holes 9. Several mounting holes 2 are fixedly installed at the edges of the surface of the first bottom protection plate 1. Several first heat dissipation holes 3 are fixedly installed in the middle of the surface of the first bottom protection plate 1. A frame 4 is fixedly installed at the front edge of the first bottom protection plate 1. Several elastic seats 5 are fixedly installed on the inner side of the edge of the frame 4. Springs 6 are fixedly installed inside each elastic seat 5. Elastic pillars 7 are fixedly installed at the tail end of each spring 6, and the springs 6 extend movably to the outside of the elastic seats 5. A second bottom protection plate 8 is movably installed on the outer side of the frame 4, and the top of the elastic pillars 7 is fixedly connected to the inner wall of the second bottom protection plate 8. Several second heat dissipation holes 9 are fixedly installed on the surface of the second bottom protection plate 8.

[0022] In this embodiment, the first bottom protective plate 1 corresponds to the second bottom protective plate 8.

[0023] In practical use, the battery pack can be double-protected by the first bottom protective plate 1 and the second bottom protective plate 8, which can improve the protection performance.

[0024] In this embodiment, the inner side of the second bottom guard plate 8 is adapted to the frame 4, and the first bottom guard plate 1 and the second bottom guard plate 8 are elastically connected by an elastic seat 5, a spring 6, and an elastic column 7.

[0025] In practical use, the first bottom guard plate 1 and the second bottom guard plate 8 are elastically connected by an elastic seat 5, a spring 6, and an elastic column 7. When the bottom of the battery pack is impacted by gravel or the bottom is supported, the second bottom guard plate 8 will be impacted first. After the second bottom guard plate 8 is impacted, the spring 6 will be compressed and deformed, and the elastic column 7 will move elastically inside the elastic seat 5. This allows the second bottom guard plate 8 to move elastically between the frame 4. The elastic movement of the second bottom guard plate 8 can buffer the impact force and improve the protection performance.

[0026] In this embodiment, the first heat dissipation hole 3 and the second heat dissipation hole 9 are arranged in an array structure, and the first heat dissipation hole 3 and the second heat dissipation hole 9 are staggered.

[0027] In practical use, when the car is moving, airflow will be generated under the car through the first heat dissipation hole 3 and the second heat dissipation hole 9. The airflow can flow into the space between the first bottom guard plate 1 and the second bottom guard plate 8 through the second heat dissipation hole 9. Then, the airflow can come into contact with the surface of the battery pack through the first heat dissipation hole 3. The airflow can dissipate the heat generated on the surface of the battery pack, thereby improving the heat dissipation efficiency.

[0028] The staggered distribution of the first heat dissipation hole 3 and the second heat dissipation hole 9 prevents the holes from aligning, thus facilitating airflow.

[0029] In this embodiment, the first bottom protective plate 1 has a concave structure in the middle.

[0030] In practical use, the first bottom guard plate 1 has a concave structure in the middle, so that the surface of the first bottom guard plate 1 will not come into contact with the surface of the battery pack, and there will be an equal distance between the first bottom guard plate 1 and the battery pack, so that the heat on the surface of the battery pack can be easily dissipated.

[0031] The working principle of a lightweight automotive battery pack bottom protection plate mentioned in this utility model:

[0032] In use, the mounting hole 2 is aligned with the pre-drilled hole on the bottom of the vehicle, and then bolts are used to lock the installation, so that the first bottom guard plate 1 and the second bottom guard plate 8 can be installed to the bottom of the battery pack.

[0033] Meanwhile, the battery pack can be double-protected by the first bottom guard plate 1 and the second bottom guard plate 8, which can improve the protection performance. The first bottom guard plate 1 and the second bottom guard plate 8 are elastically connected by the elastic seat 5, the spring 6, and the elastic column 7. When the bottom of the battery pack is impacted by gravel or the bottom is supported, the second bottom guard plate 8 will be impacted first. After the second bottom guard plate 8 is impacted, the spring 6 will be compressed and deformed, and the elastic column 7 will move elastically inside the elastic seat 5, so that the second bottom guard plate 8 can move elastically between the frame 4. The elastic movement of the second bottom guard plate 8 can buffer the impact force and further improve the protection performance.

[0034] Meanwhile, the recessed structure in the middle of the first bottom guard plate 1 prevents its surface from contacting the battery pack surface, ensuring an equidistant gap between them. This facilitates heat dissipation from the battery pack surface. Furthermore, airflow is generated under the vehicle when it is in motion via the first heat dissipation hole 3 and the second heat dissipation hole 9. This airflow flows through the second heat dissipation hole 9 into the space between the first bottom guard plate 1 and the second bottom guard plate 8. The airflow then contacts the battery pack surface through the first heat dissipation hole 3, thus dissipating heat generated on the battery pack surface and improving heat dissipation efficiency.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive lightweight battery pack undertray comprising: The first bottom guard plate (1), mounting holes (2), first heat dissipation holes (3), frame (4), elastic seats (5), springs (6), elastic columns (7), second bottom guard plate (8), and second heat dissipation holes (9) are characterized in that: a number of mounting holes (2) are fixedly installed at the edge of the surface of the first bottom guard plate (1), a number of first heat dissipation holes (3) are fixedly installed in the middle of the surface of the first bottom guard plate (1), a frame (4) is fixedly installed at the front edge of the first bottom guard plate (1), a number of elastic seats (5) are fixedly installed on the inner side of the edge of the frame (4), a spring (6) is fixedly installed inside the elastic seat (5), an elastic column (7) is fixedly installed at the tail end of the spring (6), and the spring (6) extends movably to the outside of the elastic seat (5), a second bottom guard plate (8) is movably installed on the outside of the frame (4), and the top of the elastic column (7) is fixedly connected to the inner wall of the second bottom guard plate (8), and a number of second heat dissipation holes (9) are fixedly installed on the surface of the second bottom guard plate (8).

2. The automobile lightweight battery pack bottom shield according to claim 1, characterized in that: The first bottom guard plate (1) corresponds to the second bottom guard plate (8).

3. The lightweight battery pack bottom protection plate for automobiles according to claim 1, characterized in that: The inner side of the second bottom guard plate (8) is adapted to the frame (4), and the first bottom guard plate (1) and the second bottom guard plate (8) are elastically connected by an elastic seat (5), a spring (6), and an elastic column (7).

4. The lightweight battery pack bottom protection plate for automobiles according to claim 1, characterized in that: The first heat dissipation hole (3) and the second heat dissipation hole (9) are arranged in an array structure, and the first heat dissipation hole (3) and the second heat dissipation hole (9) are staggered.

5. The lightweight battery pack bottom protection plate for automobiles according to claim 1, characterized in that: The first bottom guard plate (1) has a concave structure in the middle.

Images