Commercial vehicle new energy back type battery frame assembly

Abstract

The utility model provides a commercial vehicle new energy back type battery frame assembly, which relates to the technical field of new energy commercial vehicle power battery frames, and comprises a frame body, a skin is coated outside the frame body, the top of the frame body is a water cooling unit support layer, and the bottom of the water cooling unit support layer is a multi-layer battery mounting support layer. Vertical beams are arranged on the two sides of the battery mounting bracket layer, a cross beam II is arranged between the vertical beams on the two sides, a plurality of threaded sleeves are arranged in the vertical beams on the two sides from top to bottom, connecting brackets are arranged on the two sides of the cross beam II, and the cross beam II is mounted and fixed between the vertical beams through the matching of the connecting brackets and the threaded sleeves. According to the utility model, high strength and durability are ensured, and meanwhile, light weight is realized, so that the overall performance and safety of the power battery system of the commercial vehicle are improved, and the power battery system has higher practical value and market application prospect.

Description

Technical Field

[0001] This utility model relates to the field of power battery frame technology for new energy commercial vehicles, specifically to a rear-mounted battery frame assembly for new energy commercial vehicles. Background Technology

[0002] With the continuous progress and innovation of the automotive industry, electric vehicles have gradually emerged as a major direction for future automotive market development. Among the many components of an electric vehicle, the power battery plays a crucial role, directly affecting the vehicle's range and overall performance. Therefore, the importance of the power battery bracket, as the supporting structure for the power battery, is self-evident. In the commercial vehicle sector, the power battery frame is an indispensable component, responsible for supporting and securing the power battery, ensuring its safety and stability under various complex and changing driving conditions. To meet these stringent requirements, commercial vehicle power battery frames are typically designed with high strength and excellent durability.

[0003] In the process of realizing this utility model, the inventors discovered that:

[0004] The structural designs of commercial vehicle power battery frames vary widely, but they typically comprise several core components: the main frame, support arms, and crossbeams. These components work together to provide a robust support platform for the power battery. However, existing technologies still have some shortcomings in battery frame design. For example, the frame itself is relatively heavy, which may adversely affect the vehicle's load-bearing capacity and energy consumption. Furthermore, insufficient load-bearing capacity limits the use of battery frames in a wider range of applications.

[0005] Under current technological conditions, the layered structure of commercial vehicle power battery frames is typically non-removable, which limits the ease of maintenance and replacement. If the frame is damaged, it may be necessary to replace the entire frame, rather than just the damaged section.

[0006] Furthermore, the outer skin material of existing commercial vehicle power battery frames is mostly iron. While this material has a certain strength, its weight is relatively heavy, which not only increases the overall weight of the frame but may also negatively impact the performance of the entire vehicle. Therefore, finding a lighter material with sufficient strength to replace the iron outer skin is an urgent problem to be solved in the current design of commercial vehicle power battery frames. Summary of the Invention

[0007] To address the problems existing in the prior art, this utility model provides a rear-mounted battery frame assembly for new energy vehicles. Through a reasonable structural design, it achieves strong load-bearing capacity, long service life, and ease of disassembly and maintenance, thereby meeting the high requirements of new energy commercial vehicles for battery frames in actual use.

[0008] Therefore, the technical solution of this utility model is as follows: a rear-mounted battery frame assembly for new energy vehicles, including a frame body, the frame body being covered with a skin, and a mounting bracket at the bottom of the frame body. The frame body is characterized by: a water-cooled unit support layer at the top, a multi-layer battery mounting bracket layer at the bottom, vertical beams on both sides of the battery mounting bracket layer, multiple horizontal beams (first type) between the front and rear vertical beams, and horizontal beams (second type) between the vertical beams on both sides. Multiple threaded sleeves are embedded in the vertical beams on both sides from top to bottom. Connecting brackets are provided at both ends of the horizontal beams (second type). The horizontal beams (second type) are fixed between the vertical beams through the connecting brackets and threaded sleeves, and multiple spaced longitudinal beams are provided between the opposite horizontal beams (second type).

[0009] A further improvement to the above technical solution is that: a middle vertical beam is provided in the middle of the frame body, and multiple supports are fixedly installed on the middle vertical beam from top to bottom. The middle section of the crossbeam is detachably and fixedly connected to the middle vertical beam through the supports. Reinforcing crossbeams are also provided between adjacent middle vertical beams on the same side and between the middle vertical beam and the adjacent vertical beam.

[0010] A further improvement to the above technical solution is that: the connecting bracket for the fixed connection between the second crossbeam and the vertical beam includes two mutually perpendicular angled sides, a connecting plate is provided between the two sides of the connecting bracket, the backs of the connecting plates of the two connecting brackets are fitted together to form a set of connecting brackets for connection and support, the angled side of the connecting bracket is used to fix the vertical beam, the backs of the two connecting brackets are provided with a support part that extends in the opposite direction to the connecting plate, the width of the support part gradually increases from bottom to top, the end of the second crossbeam is mounted on the support part and fixed to the other angled side by bolts.

[0011] A further improvement to the above technical solution is that the water-cooled unit support layer at the top of the frame body is connected and fixed to the vertical beam through a support frame, and the support frame and the vertical beam are connected by fastening bolts.

[0012] A further improvement to the above technical solution is that: the skin is made of aluminum alloy, the inner upper and lower edges of the skin are reinforced with reinforcing plates, and the inner surface of the skin is evenly covered with adhesive backing.

[0013] A further improvement to the above technical solution is that: the mounting bracket at the bottom of the frame body includes two support beams, which are parallel to the crossbeams in the width direction of the frame body. Each support beam includes a rectangular groove, and a rectangular tube is installed inside the rectangular groove. Multiple corresponding mounting holes are provided on the sidewalls of the rectangular tubes that are in contact with the support beams. Multiple windows corresponding to the mounting holes are provided on the sidewalls of the other side of the rectangular tubes.

[0014] A further improvement to the above technical solution is that: a transverse reinforcing beam is provided between the two support beams of the mounting bracket, and a side reinforcing beam is provided between the outer side of the two support beams and the bottom of the frame body, forming a triangular support structure between the side reinforcing beam and the bottom of the frame body.

[0015] A further improvement to the above technical solution is that: the outer side of the rectangular groove of the support beam is provided with a mounting plate, and the mounting plate is respectively set in the front, middle and rear parts of the outer side of the rectangular groove.

[0016] Beneficial Effects: This utility model, through its unique structural design, achieves effective support and protection for the power battery. The water-cooled unit support layer at the top of the frame provides a stable installation platform for the water-cooled unit, ensuring battery stability during operation and extending battery life. The multi-layered, detachable battery mounting bracket design makes battery installation and replacement more convenient and quick, improving maintenance efficiency. Meanwhile, the aluminum alloy material used for the outer skin of the frame not only reduces overall weight but also improves the frame's corrosion resistance and durability. The reinforcing plates on the inner side of the skin further enhance the structure's stability and sealing, effectively preventing damage to the battery from external factors. Additionally, the evenly distributed adhesive on the inner surface of the skin not only enhances the adhesion between the skin and the battery but also improves overall shock resistance.

[0017] In summary, this utility model achieves both high strength and durability while also being lightweight, thereby improving the overall performance and safety of the power battery system for commercial vehicles. It has high practical value and promising market application prospects. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention.

[0019] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0020] Figure 3 yes Figure 1 A magnified view of a section at point B.

[0021] Figure 4 This is a schematic diagram of the skin of this utility model.

[0022] Figure 5 This is a structural diagram of the left front side of this utility model.

[0023] Figure 6 This is a structural diagram of the right front side of this utility model.

[0024] Figure 7 This is a schematic diagram of the support beam of this utility model.

[0025] The diagram shows: 1. Frame body; 2. Skin; 3. Water-cooled unit support layer; 4. Battery mounting support layer; 5. Vertical beam; 6. Horizontal beam one; 7. Threaded sleeve; 8. Connecting bracket; 9. Intermediate vertical beam; 10. Bracket; 11. Mounting bracket; 12. Horizontal beam two; 8-1. Connecting plate; 3-1. Support frame; 2-1. Reinforcing plate; 2-2. Adhesive backing; 11-1. Support beam; 11-2. Rectangular tube; 11-3. Mounting fixing plate; 11-4. Horizontal reinforcing beam; 11-5. Side reinforcing beam. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings, but this embodiment should not be construed as a limitation of this utility model.

[0027] This utility model is as follows Figures 1 to 7 As shown:

[0028] A new energy rear-mounted battery frame assembly for commercial vehicles includes a frame body 1, an outer skin 2 covering the frame body 1, a water-cooled unit support layer 3 at the top of the frame body 1, a multi-layer battery mounting support layer 4 at the bottom of the water-cooled unit support layer 3, vertical beams 5 on both sides of the battery mounting support layer 4, multiple horizontal beams 12 arranged from top to bottom between the front and rear vertical beams 5, a horizontal beam 6 arranged between the vertical beams 5 on both sides, multiple threaded sleeves 7 built into the vertical beams 5 from top to bottom, connecting brackets 8 arranged on both sides of the horizontal beam 6, the horizontal beam 6 is installed and fixed between the vertical beams 5 through the connecting brackets 8 and the threaded sleeves 7, and multiple spaced longitudinal beams are arranged between the opposite horizontal beams 6.

[0029] The frame body 1 has intermediate vertical beams 9 spaced apart on the front and rear sides. Multiple brackets 10 are fixedly installed on the intermediate vertical beams 9 from top to bottom. The two ends of the crossbeam 6 are connected to the threaded sleeves 7 built into the vertical beams 5 on both sides of the frame body 1 through connecting brackets 8. The middle section of the crossbeam 6 is connected and fixed to the brackets 10 of the intermediate vertical beams 9 through connecting brackets 8. Reinforcing crossbeams are also provided between adjacent intermediate vertical beams and between intermediate vertical beams and adjacent vertical beams.

[0030] In this embodiment, the connecting bracket 8 that is fixedly connected to the second crossbeam 12 and the vertical beam 5 includes two mutually perpendicular angled sides. A connecting plate 8-1 is provided between the two sides of the connecting bracket 8. The backs of the connecting plates 8-1 of the two connecting brackets 8 are attached to each other to form a set of connecting brackets for connection and support. One angled side of the connecting bracket is used to fix the connecting support frame. The backs of the two connecting brackets are provided with support parts that extend in the opposite direction to the connecting plates. The width of the support parts gradually increases from bottom to top. One end of the second crossbeam is mounted on the support part and fixed to the other angled side by bolts.

[0031] In this embodiment, the water-cooled unit support layer 3 at the top of the frame body 1 is connected and fixed to the vertical beam 5 through the support frame 3-1, and the support frame 3-1 and the vertical beam 5 are connected by fastening bolts.

[0032] In this embodiment, the skin 2 is made of aluminum alloy. The inner upper and lower edges of the skin 2 are provided with reinforcing plates 2-1, and the inner surface of the skin 2 is evenly covered with adhesive backing 2-2.

[0033] like Figure 5 As shown, the mounting bracket 11 at the bottom of the frame body 1 includes two support beams 11-1. The two support beams 11-1 are parallel to the crossbeams 12 in the width direction of the frame body 1. The support beams 11-1 include rectangular grooves, and rectangular tubes 11-2 are arranged in the rectangular grooves. Multiple corresponding mounting holes are provided on the side walls of the rectangular tubes 11-2 and the support beams 11-1 that are in contact with each other. Multiple windows corresponding to the mounting holes are provided on the side wall of the other side of the rectangular tubes 11-2.

[0034] In this embodiment, a transverse reinforcing beam 11-4 is provided between the two support beams 11-1 of the mounting bracket 11, and a side reinforcing beam 11-5 is provided between the outer sides of the two support beams 11-1 and the bottom of the frame body 1. The side reinforcing beams 11-5 form a triangular support structure between the bottom of the frame body 1.

[0035] Among them, the rectangular groove of the support beam 11-1 is provided with mounting and fixing plates 11-3, which are respectively set in the front, middle and rear parts of the outer side of the rectangular groove.

[0036] The design concept of the frame described in this embodiment is to arrange it on the rear side of the vehicle body and adopt a layered installation method. Specifically, the battery is installed in five layers, while the sixth layer is used as a support for the water-cooled unit.

[0037] To ensure the stable installation of the battery mounting bracket layers, threaded sleeves were welded to the four vertical beams on both sides of the frame body to fix the two ends of the first crossbeam. The middle section of the first crossbeam was fixed by a bracket 10 (which includes a U-shaped bracket 1, one of which is closed at one end and has a mounting hole, and an inverted U-shaped bracket 2 welded and fixed to the middle vertical beam, with the two U-shaped brackets connected by opposing web bolts) welded to the middle vertical beam. Each battery mounting bracket layer is easy to disassemble and maintain. The top battery layer is installed and its stability is ensured by a bracket connected to the vertical beam. This multi-layered fixing method effectively avoids the risk of the battery layer falling off when subjected to external vibration.

[0038] By combining rectangular grooves and rectangular tubes, the installation method of the support beams not only ensures the stability of the frame but also enhances its load-bearing capacity. In addition, the use of reinforcing beams can further improve the load-bearing capacity and overall stability of the bottom support beams, ensuring that the entire structure remains stable under various load conditions, thereby providing a more solid foundation for the entire frame.

[0039] To ensure easier installation and removal of the outer cover, installation points were carefully designed around the frame, which not only facilitates daily maintenance but also improves work efficiency.

[0040] In terms of material selection, aluminum alloy was used to make the outer skin, which significantly reduced the weight of the outer skin and thus lightened the burden on the entire vehicle. In addition, the designers specially set up a reinforcing plate and adhesive backing on the inside of the skin. This design can effectively prevent abnormal noises caused by vibration during vehicle operation, thus providing passengers with a more comfortable and quiet riding environment.

[0041] Any aspects not described in detail in this specification are techniques well-known in the art.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new energy back-mounted battery frame assembly of a commercial vehicle, comprising a frame body (1), the frame body (1) is externally covered with a skin (2), and the bottom of the frame body (1) is provided with a mounting bracket (11), characterized in that: The top of the frame body (1) is a water-cooled unit support layer (3), the bottom of the water-cooled unit support layer (3) is a multi-layer battery mounting support layer (4), the two sides of the battery mounting support layer (4) are the vertical beams (5) of the frame body, and multiple horizontal beams (12) are provided between the front and rear vertical beams (5) from top to bottom. A horizontal beam (6) is provided between the vertical beams (5) on both sides. Multiple threaded sleeves (7) are built into the vertical beams (5) from top to bottom. Connecting brackets (8) are provided at both ends of the horizontal beam (6). The horizontal beam (6) is installed and fixed between the vertical beams (5) through the connecting brackets (8) and the threaded sleeves (7). Multiple spaced longitudinal beams are provided between the opposite horizontal beams (6).

2. The new energy rear-mounted battery frame assembly of a commercial vehicle according to claim 1, characterized in that: The frame body (1) has a middle vertical beam (9) in the middle. Multiple supports (10) are fixedly installed on the middle vertical beam (9) from top to bottom. The middle section of the crossbeam (6) is detachably fixedly connected to the middle vertical beam (9) through the supports (10). Reinforcing crossbeams are also provided between adjacent middle vertical beams on the same side and between the middle vertical beam and the adjacent vertical beam.

3. The new energy rear-mounted battery frame assembly of a commercial vehicle according to claim 1 or 2, characterized in that: The connecting bracket (8) that is fixedly connected to the second crossbeam (12) and the vertical beam (5) includes two mutually perpendicular angled sides. A connecting plate (8-1) is provided between the two sides of the connecting bracket (8). The backs of the connecting plates (8-1) of the two connecting brackets (8) are attached to each other to form a set of connecting brackets for connection and support. One angled side of the connecting bracket is used to fix the vertical beam (5). The backs of the two connecting brackets are provided with a support part that extends in the opposite direction to the connecting plate. The width of the support part gradually increases from bottom to top. The end of the second crossbeam (12) is mounted on the support part and fixed to the other angled side by bolts.

4. The new energy rear-mounted battery frame assembly of the commercial vehicle according to claim 3, characterized in that: The water-cooled unit support layer (3) at the top of the frame body (1) is connected and fixed to the vertical beam (5) through the support frame (3-1), and the support frame (3-1) and the vertical beam (5) are connected by fastening bolts.

5. The new energy rear-mounted battery frame assembly of the commercial vehicle according to claim 1 or 2 or 4, characterized in that: The skin (2) is made of aluminum alloy. The inner upper and lower edges of the skin (2) are provided with reinforcing plates (2-1), and the inner surface of the skin (2) is evenly covered with adhesive backing (2-2).

6. The new energy rear-mounted battery frame assembly of the commercial vehicle according to claim 5, characterized in that: The mounting bracket (11) at the bottom of the frame body (1) includes two support beams (11-1). The two support beams (11-1) are parallel to the crossbeam (12) in the width direction of the frame body (1). The support beam (11-1) includes a rectangular groove, and a rectangular tube (11-2) is provided in the rectangular groove. Multiple corresponding mounting holes are provided on the side wall of the rectangular tube (11-2) that is in contact with the support beam (11-1). Multiple windows corresponding to the mounting holes are provided on the side wall of the other side of the rectangular tube (11-2).

7. The new energy rear-mounted battery frame assembly of the commercial vehicle according to claim 6, characterized in that: A transverse reinforcing beam (11-4) is provided between the two support beams (11-1) of the mounting bracket (11), and a side reinforcing beam (11-5) is provided between the outer side of the two support beams (11-1) and the bottom of the frame body (1), forming a triangular support structure between the side reinforcing beam (11-5) and the bottom of the frame body (1).

8. The new energy rear-mounted battery frame assembly of the commercial vehicle according to claim 7, characterized in that: The rectangular groove outside of the support beam (11-1) is provided with a mounting fixed plate (11-3), and the mounting fixed plate (11-3) is arranged at the front, middle and rear parts of the rectangular groove outside.

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