Internally braced high strength battery tray aluminum extrusion

Abstract

The application discloses an internally supported high-strength battery tray aluminum profile and relates to the field of new energy automobile battery assemblies.The internally supported high-strength battery tray aluminum profile comprises a main frame made of an aluminum profile and a cover on the main frame, a first mounting seat is fixed to the outside of the main frame to connect the main frame and a vehicle frame, a bottom supporting plate is arranged in the main frame, a first movable groove is formed in the main frame to provide support for the bottom supporting plate, a first elastic connecting pad is fixed to the outside of the bottom supporting plate to seal the connection between the bottom supporting plate and the first movable groove.The main frame made of the aluminum profile provides installation space for a battery pack, the bottom supporting plate arranged below the main frame can move, a reinforcing anti-collision mechanism is further arranged below the bottom supporting plate, and the reinforcing anti-collision mechanism can buffer the impact when the bottom of the battery pack is subjected to a serious impact or collision, so that the damage to the battery in the main frame is reduced.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle battery component technology, specifically to a high-strength aluminum profile for an internally supported battery tray. Background Technology

[0002] With the rapid development of the new energy vehicle industry, battery trays, as a key component of new energy vehicles, play a vital role in the safety and reliability of vehicles due to their performance and quality. Traditional battery trays are mostly made of steel, which has disadvantages such as heavy weight and poor corrosion resistance. Therefore, battery trays made of aluminum alloy profiles can be used to reduce weight to a certain extent.

[0003] Prior art 1 (Chinese patent application number CN202122444347.3, published on March 11, 2022) describes a high-strength aluminum alloy profile for a new energy vehicle battery tray, comprising a main support body. The main support body includes a support base plate, with side panels integrally formed at both ends. Sealing plates are detachably installed at both ends of the two sets of side panels. A first support plate is integrally formed at one end of each sealing plate. Dividing support components are detachably installed on the side panels. The beneficial effect of this invention is that by setting a main support body and sealing plates, and fixing them together with bolts, a tray is formed. Dividing support components are installed within the main support body, and the position of the dividing support components is adjustable. Adjustable to accommodate batteries of different sizes, it is assembled from a main support, sealing plate, and segmented support components, facilitating production and transportation; and when one component is damaged, there is no need to replace other components, reducing the cost of use when damaged; Prior art 2 (application number CN201820824908.8, Chinese patent published on March 22, 2019) is a high-strength combined battery pack tray for new energy vehicles, including an outer frame and a base plate. The base plate includes multiple substrates connected in parallel in sequence. Any two adjacent substrates are connected by a snap-fit ​​connection and an adhesive connection. The outer frame is installed on the outer side of the base plate and forms an accommodating cavity for placing the car battery module. By using snap-fit ​​and adhesive methods to connect adjacent substrates, welding between substrates is no longer required. This allows the base plate composed of multiple substrates to have high strength and sealing performance, effectively restricting the tendency of each substrate to move in all directions. At the same time, it optimizes the production process of high-strength modular battery pack trays for new energy vehicles, reduces welding steps, and shortens production processing time. This allows the manufacturing of high-strength modular battery pack trays for new energy vehicles to meet design and usage requirements while reducing production costs and increasing yield.

[0004] Current battery tray profiles are generally one-piece frame structures, which cannot effectively disperse the impact force on the battery. In particular, the bottom of the tray is directly exposed and is more likely to be bumped or knocked. When impacted from the bottom, the battery tray is prone to local deformation. The deformation force of the tray is directly transmitted to the battery pack, which may damage the battery pack and cause safety hazards. Summary of the Invention

[0005] The purpose of this invention is to provide a high-strength aluminum profile for an internally supported battery tray, in order to solve the problem mentioned in the background art that the battery tray is prone to local deformation when subjected to bottom impact, and the deformation force of the tray is directly transmitted to the battery pack, which may damage the battery pack and cause safety hazards.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-strength battery tray aluminum profile with internal support, comprising a main frame made of aluminum profile and a cover on the main frame. A first mounting seat is fixed to the outside of the main frame to connect the main frame and the vehicle frame. A bottom support plate is provided inside the main frame, and a first movable groove is provided on the main frame to provide support for the bottom support plate. A first elastic connecting pad is fixed to the outside of the bottom support plate to seal the connection between the bottom support plate and the first movable groove. A reinforced anti-collision mechanism is provided below the bottom support plate to provide anti-collision protection for the bottom of the bottom support plate. A movable plate is provided inside the cover, and a sliding connection is formed between the movable plate and the cover. A downward pressure buffer mechanism is provided above the movable plate to provide stable downward pressure for the movable plate.

[0007] To further optimize this technical solution, the enhanced anti-collision mechanism includes a bottom connecting plate, a reinforcing layer, a mounting frame, and an external connecting plate; The bottom connecting plate is located below the bottom support plate and fits snugly against the bottom support plate; A reinforcing layer is located below the bottom connecting plate, and the reinforcing layer has a honeycomb structure design; The mounting frame is installed on the outside of the reinforcing layer and is located below the main frame. An external connecting plate is located below the reinforcing layer.

[0008] To further optimize this technical solution, a second mounting seat is fixed to the outside of the mounting frame, and the second mounting seat is located below the first mounting seat. A docking and positioning mechanism is provided between the mounting frame and the main frame.

[0009] To further optimize this technical solution, an elastic buffer pad is fixed below the mounting frame to provide support and buffer distance for the external connecting plate on the outside of the reinforcing layer.

[0010] To further optimize this technical solution, the positioning mechanism includes a positioning groove and a positioning block; The positioning groove is formed on the upper surface of the mounting frame; The positioning block is fixed on the lower surface of the main frame, and the positioning block and the positioning groove form a concave-convex fit structure.

[0011] To further optimize this technical solution, the downward pressure buffer mechanism includes a second movable groove, a second elastic connecting pad, and a buffer spring; The second movable slot is located inside the cover. The second elastic connecting pad is fixed to the outside of the movable plate to seal the gap between the movable plate and the second movable groove; A buffer spring is positioned above the movable plate to provide downward thrust to the movable plate.

[0012] To further optimize this technical solution, a lateral reinforcement mechanism is provided on the side of the main frame to provide protection for the side of the main frame.

[0013] To further optimize this technical solution, the lateral reinforcement mechanism includes a mounting plate, a protective plate, and an auxiliary support; The mounting plate is located on the outside of the main frame. The protective plate is fixed below the mounting plate and is perpendicular to the mounting plate. The protective plate is located outside the first mounting base, which provides inner support for the protective plate. The auxiliary support is fixed to the inside of the protective plate, and its interior has a hollow structure design.

[0014] To further optimize this technical solution, mounting grooves are provided on the surfaces of both the mounting plate and the cover, allowing the mounting plate and cover to be installed onto the top of the main frame via these grooves.

[0015] To further optimize this technical solution, an internal reinforcing brace is fixed inside the main frame, and a heat-conducting plate is attached to the surface of the internal reinforcing brace. A heat sink is connected to the outer end of the heat-conducting plate. The heat sink is located on the outside of the main frame. An air guide shroud is provided above the heat sink. The air guide shroud is installed above the mounting plate, and a connecting pipe is connected to the top of the air guide shroud.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The main frame, made of aluminum profiles, provides installation space for the battery pack. A movable base plate is installed at the bottom of the main frame, and a reinforced anti-collision mechanism is installed below the base plate. When the bottom is subjected to severe impact, it can buffer the impact, thereby reducing the damage to the battery inside the main frame and preventing deformation and damage to the inside of the main frame.

[0017] The movable plate provides downward pressure to the battery pack, keeping the base plate stable. The subsequent movement of the movable plate, in conjunction with the buffer spring, provides cushioning against impacts, protecting the battery pack and reducing the risk of damage.

[0018] Internal reinforcement supports provide internal support to the main frame, improving its resistance to deformation. At the same time, internal reinforcement supports can separate the battery pack, preventing rapid conduction of fire to the surrounding area in the event of local battery damage, thus playing a role in safety isolation. Meanwhile, the heat-conducting plate set on the outside of the internal reinforcement supports can absorb and dissipate the heat from the battery, achieving a certain heat dissipation effect.

[0019] The mounting frame allows the reinforcement layer to be installed below the main frame. The mounting frame is connected to the chassis via a second mounting base. If the mounting frame or reinforcement layer is damaged by impact, it can be removed and replaced separately, thereby reducing subsequent maintenance costs.

[0020] The protective plate, together with the mounting plate and auxiliary support, provides lateral reinforcement protection for the main frame. The side of the protective plate fits snugly against the first mounting base, which can reduce the force transmitted to the main frame. In addition, a connecting pipe for connecting to the car's air intake channel can be installed on the mounting plate to provide air blowing heat dissipation for the radiator, allowing its heat to be dissipated more quickly. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the present invention viewed from below.

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the main frame of the present invention.

[0024] Figure 4 This is a schematic diagram of the cover structure of the present invention viewed from below.

[0025] Figure 5 This is a bottom view of the main frame structure of the present invention.

[0026] Figure 6 This is a schematic diagram of the main cross-section of the present invention.

[0027] Figure 7 This is a top view of the mounting frame structure of the present invention.

[0028] Figure 8 This is a schematic diagram of the exploded structure of the mounting frame and reinforcing layer of the present invention.

[0029] Figure 9 This is a schematic diagram of the three-dimensional structure of the heat-conducting plate of the present invention.

[0030] Figure 10 This is a side view of the protective plate structure of the present invention.

[0031] Figure 11 This is a schematic diagram of the three-dimensional structure of the protective plate of the present invention.

[0032] In the diagram: 1. Main frame; 2. Cover; 3. First mounting base; 4. Internal reinforcing support; 5. Bottom support plate; 6. First movable groove; 7. First elastic connecting pad; 8. Bottom connecting plate; 9. Reinforcing layer; 10. Mounting frame; 11. External connecting plate; 12. Elastic buffer pad; 13. Second mounting base; 14. Positioning groove; 15. Positioning block; 16. Movable plate; 17. Second movable groove; 18. Second elastic connecting pad; 19. Buffer spring; 20. Mounting groove; 21. Mounting plate; 22. Protective plate; 23. Auxiliary support; 24. Heat-conducting plate; 25. Radiator; 26. Air guide cover; 27. Connecting pipe. 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: The present invention provides the following technical solution: a high-strength aluminum profile for an internally supported battery tray, such as... Figure 1-4 As shown, the system includes a main frame 1 made of aluminum profiles and a cover 2 on the main frame 1. A first mounting base 3 is fixed to the outside of the main frame 1 to connect the main frame 1 to the vehicle frame. A bottom support plate 5 is provided inside the main frame 1, and a first movable groove 6 is provided on the main frame 1 to provide support for the bottom support plate 5. A first elastic connecting pad 7 is fixed to the outside of the bottom support plate 5, and the first elastic connecting pad 7 seals the connection between the bottom support plate 5 and the first movable groove 6. A reinforced anti-collision mechanism is provided below the bottom support plate 5 to provide anti-collision protection for the bottom of the bottom support plate 5. A movable plate 16 is provided inside the cover 2, and a sliding connection is formed between the movable plate 16 and the cover 2. A downward pressure buffer mechanism is provided above the movable plate 16 to provide stable downward pressure for the movable plate 16.

[0035] The battery pack is arranged in an orderly manner inside the main frame 1 via the base plate 5. The main frame 1 is connected to the vehicle frame via the first mounting bracket 3. The cover 2 is installed on top of the main frame 1 to seal the battery pack. When the bottom of the main frame 1 is impacted, combined with... Figure 2 As shown, the impact force can be buffered and absorbed by strengthening the anti-collision mechanism, thereby reducing the damage to the battery.

[0036] Example 2: Based on Example 1, as follows Figure 5-8As shown, the reinforced anti-collision mechanism further discloses a bottom connecting plate 8, a reinforcing layer 9, a mounting frame 10, and an outer connecting plate 11. The bottom connecting plate 8 is located below and in contact with the bottom support plate 5. The reinforcing layer 9 is located below the bottom connecting plate 8 and has a honeycomb structure design. The mounting frame 10 is installed on the outside of the reinforcing layer 9 and is located below the main frame 1. The outer connecting plate 11 is located below the reinforcing layer 9. A second mounting seat 13 is fixed to the outside of the mounting frame 10 and is located below the first mounting seat 3. A docking positioning mechanism is provided between the mounting frame 10 and the main frame 1. An elastic buffer is fixed below the mounting frame 10. The punch pad 12 provides support and buffer distance for the external connecting plate 11 on the outside of the reinforcing layer 9. The positioning mechanism includes a positioning groove 14 and a positioning block 15. The positioning groove 14 is opened on the upper surface of the mounting frame 10, and the positioning block 15 is fixed on the lower surface of the main frame 1. The positioning block 15 and the positioning groove 14 form a concave-convex fit structure. The downward pressure buffer mechanism includes a second movable groove 17, a second elastic connecting pad 18 and a buffer spring 19. The second movable groove 17 is opened inside the cover 2. The second elastic connecting pad 18 is fixed on the outside of the movable plate 16 to seal the gap between the movable plate 16 and the second movable groove 17. The buffer spring 19 is set above the movable plate 16 to provide downward thrust for the movable plate 16.

[0037] When the main frame 1 is impacted from below, the impact force is transmitted to the external connecting plate 11, combined with... Figure 6 and Figure 8 As shown, the external connecting plate 11 gains greater strength through the reinforcing layer 9. When the force is too great, the reinforcing layer 9 will push the bottom connecting plate 8 and the bottom support plate 5 upward. At this time, the battery pack will press the movable plate 16 upward, causing the buffer spring 19 to deform diverge and absorb the impact force, preventing the battery pack from being deformed or damaged by the impact. The buffer spring 19 can be a spring structure with a large elastic force, so that it will not deform due to vibration during normal vehicle operation. When the external connecting plate 11 or the reinforcing layer 9 is damaged, it can be disassembled and replaced. By disconnecting the second mounting seat 13 from the vehicle body, the mounting frame 10 can be taken out downward. Figure 5 and Figure 7 As shown, by disconnecting the positioning groove 14 and the positioning block 15, the mounting frame 10 along with the reinforcing layer 9 can be removed, reducing its maintenance costs.

[0038] Example 3: Based on Example 1, as follows Figure 9-11As shown, a lateral reinforcement mechanism is further disclosed on the side of the main frame 1 to provide protection for the side of the main frame 1. The lateral reinforcement mechanism includes a mounting plate 21, a protective plate 22, and an auxiliary support 23. The mounting plate 21 is located on the outside of the main frame 1. The protective plate 22 is fixed below the mounting plate 21 and is perpendicular to the mounting plate 21. The protective plate 22 is located on the outside of the first mounting base 3, which provides inner support for the protective plate 22. The auxiliary support 23 is fixed on the inside of the protective plate 22 and is hollow inside. In terms of structural design, mounting grooves 20 are provided on the surface of the mounting plate 21 and the surface of the cover 2. The mounting plate 21 and the cover 2 are installed on the top of the main frame 1 through the mounting grooves 20. An internal reinforcing support 4 is fixed inside the main frame 1, and a heat-conducting plate 24 is attached to the surface of the internal reinforcing support 4. A heat sink 25 is connected to the outer end of the heat-conducting plate 24. The heat sink 25 is located on the outside of the main frame 1. An air guide shroud 26 is provided above the heat sink 25. The air guide shroud 26 is installed above the mounting plate 21, and a connecting pipe 27 is connected to the top of the air guide shroud 26.

[0039] The internal reinforcing brace 4 enhances the overall strength of the main frame 1 and also provides some separation for the battery pack. The heat-conducting plate 24 absorbs and conducts the battery heat, which is then dissipated through the heat sink 25. Furthermore, the protective plate 22 installed on the outside of the main frame 1 provides lateral protection. Figure 10 and Figure 11 As shown, the protective plate 22 abuts against the first mounting base 3, which can absorb part of the impact force. The mounting plate 21 is provided with an air guide 26 and a connecting pipe 27. The connecting pipe 27 can be connected to the vehicle's air intake channel, so that the airflow can blow down from the air guide 26 to cool the radiator 25 during vehicle operation, thereby improving its heat dissipation effect. The mounting plate 21 is connected to the cover 2 and the main frame 1 through the mounting groove 20, so that it can be replaced and disassembled separately in the future. When installing the mounting plate 21, it can be placed on top of the main frame 1, then the cover 2 is pressed on, and then it is connected to the main frame 1 together with the fastener.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength battery tray aluminum profile with internal support, comprising a main frame (1) made of aluminum profile and a cover (2) on the main frame (1). Its features are: The main frame (1) is fixed with a first mounting base (3) to connect the main frame (1) and the vehicle frame. The main frame (1) is provided with a bottom support plate (5) inside, and a first movable groove (6) is provided on the main frame (1) to provide support for the bottom support plate (5). A first elastic connecting pad (7) is fixed on the outside of the bottom support plate (5). The first elastic connecting pad (7) seals the connection between the bottom support plate (5) and the first movable groove (6). A reinforced anti-collision mechanism is provided below the bottom support plate (5) to provide anti-collision protection for the bottom of the bottom support plate (5). A movable plate (16) is provided inside the cover (2). The movable plate (16) and the cover (2) form a sliding connection. A downward pressure buffer mechanism is provided above the movable plate (16) to provide stable downward pressure for the movable plate (16). The main frame (1) is provided with a lateral reinforcement mechanism on its side to provide protection for the side of the main frame (1); The lateral reinforcement mechanism includes a mounting plate (21), a protective plate (22), and an auxiliary support (23); Mounting plate (21) is set on the outside of the main frame (1); The protective plate (22) is fixed below the mounting plate (21) and is perpendicular to the mounting plate (21). The protective plate (22) is located outside the first mounting base (3), and the first mounting base (3) provides inner support for the protective plate (22). The auxiliary support (23) is fixed to the inside of the protective plate (22), and the interior of the auxiliary support (23) is designed as a hollow structure. The mounting plate (21) and the cover (2) are both provided with mounting grooves (20), and the mounting plate (21) and the cover (2) are installed on the top of the main frame (1) through the mounting grooves (20).

2. The high-strength battery tray aluminum profile with internal support according to claim 1, characterized in that: The reinforced anti-collision mechanism includes a bottom connecting plate (8), a reinforcing layer (9), a mounting frame (10), and an external connecting plate (11). The bottom connecting plate (8) is located below the bottom support plate (5) and fits against the bottom support plate (5); The reinforcing layer (9) is located below the bottom connecting plate (8), and the reinforcing layer (9) has a honeycomb structure design; The mounting frame (10) is installed on the outside of the reinforcing layer (9), and the mounting frame (10) is located below the main frame (1); An external connecting plate (11) is disposed below the reinforcing layer (9).

3. The high-strength aluminum profile for an internally supported battery tray according to claim 2, characterized in that: The second mounting seat (13) is fixed on the outside of the mounting frame (10), and the second mounting seat (13) is located below the first mounting seat (3). A docking positioning mechanism is provided between the mounting frame (10) and the main frame (1).

4. The high-strength aluminum profile for an internally supported battery tray according to claim 3, characterized in that: An elastic buffer pad (12) is fixed below the mounting frame (10) to provide support and buffer distance for the external connecting plate (11) outside the reinforcing layer (9).

5. The high-strength aluminum profile for an internally supported battery tray according to claim 4, characterized in that: The positioning mechanism includes a positioning groove (14) and a positioning block (15). A positioning groove (14) is formed on the upper surface of the mounting frame (10); The positioning block (15) is fixed on the lower surface of the main frame (1), and the positioning block (15) and the positioning groove (14) form a concave-convex fit structure.

6. The high-strength aluminum profile for an internally supported battery tray according to claim 5, characterized in that: The downward pressure buffer mechanism includes a second movable groove (17), a second elastic connecting pad (18), and a buffer spring (19). The second movable groove (17) is opened inside the cover (2); The second elastic connecting pad (18) is fixed on the outside of the movable plate (16) to seal the gap between the movable plate (16) and the second movable groove (17); A buffer spring (19) is positioned above the movable plate (16) to provide downward thrust to the movable plate (16).

7. The high-strength battery tray aluminum profile with internal support according to claim 6, characterized in that: The main frame (1) is fixed with an internal reinforcing support (4), and a heat-conducting plate (24) is attached to the surface of the internal reinforcing support (4). A radiator (25) is connected to the outer end of the heat-conducting plate (24). The radiator (25) is located on the outside of the main frame (1). A wind guide hood (26) is provided above the radiator (25). The wind guide hood (26) is installed above the mounting plate (21), and a connecting pipe (27) is connected above the wind guide hood (26).

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