Frame damping structure

Abstract

The utility model relates to new energy automobile manufacturing technical field, concretely is a kind of frame damping structure, including main frame body, the both sides of main frame body are connected with four groups first derrick, the bottom fixedly connected with outer frame of first derrick, the both sides of outer frame are provided with damping connecting piece side by side. The utility model makes that inner frame "suspends" on outer frame by the interval effect of damping connecting piece, not rigid contact with outer frame, when the vibration caused by vehicle bumping is transmitted to main frame body and outer frame, the damping connecting piece between outer frame and structural beam is stressed compression under the action of vibration, in this process, impact energy is absorbed by compression deformation and is converted into heat energy, so that the vibration force transmitted to inner frame can be buffered, so that the vibration effect that battery pack is subjected to in the vehicle driving process can be obviously reduced, to ensure the safety of vehicle and prolong the service life of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle manufacturing technology, and more specifically, to a vehicle frame shock absorption structure. Background Technology

[0002] The core power source for new energy vehicles, especially pure electric vehicles, is the battery pack. Battery packs are typically very heavy (accounting for 20%-30% of the total vehicle weight) and have a fragile structure, making them highly sensitive to mechanical vibration and impact.

[0003] Currently, most new energy vehicles are designed with the battery pack rigidly fixed directly to the battery pack mounting compartment at the bottom of the frame using bolts. This structure allows vibrations and impacts from the road surface to be transmitted directly to the battery pack with almost no attenuation. Excessive vibration and impact can cause the internal structure of the battery cells to loosen, connection points to fail, and even thermal runaway, seriously threatening vehicle safety and shortening battery life.

[0004] Therefore, there is an urgent need for a frame structure that can provide cushioning protection for the battery pack. Utility Model Content

[0005] This utility model provides a chassis shock absorption structure, which solves the technical problem that the chassis design of new energy vehicles lacks buffer protection for the battery pack in the prior art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows: A vehicle frame shock absorption structure includes a main frame, four sets of first hangers connected to both sides of the main frame, an outer frame fixedly connected to the bottom of the first hangers, shock absorption connectors arranged side by side on both sides of the outer frame, two sets of structural beams also arranged above both sides of the outer frame, second hangers fixedly connected to both sides of the inner wall of the structural beams, and the bottom end of the second hangers extending to the bottom of the outer frame and fixedly connected to an inner frame.

[0007] Furthermore, the shock-absorbing connector is a rubber bushing, a hydraulic bushing, or a polymer material damping block.

[0008] Furthermore, the main frame, the first hanger, the outer frame, the structural beam, the second hanger, and the inner frame are all made of aluminum alloy, and weight-reducing holes are distributed on the main frame, the first hanger, the outer frame, the structural beam, the second hanger, and the inner frame.

[0009] Furthermore, diagonal connecting rods are connected at the four corners of the outer frame.

[0010] Furthermore, two sets of parallel reinforcing beams are respectively provided on both sides of the outer frame, and a connecting beam connects the two adjacent sets of reinforcing beams.

[0011] Furthermore, the bottom of the inner frame is provided with several sets of mounting holes, the positions of which correspond to the screw holes on the battery pack.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the spacing effect of the shock-absorbing connector makes the inner frame "suspended" on the outer frame, rather than rigidly contacting the outer frame. When the vibration caused by vehicle bumps is transmitted to the main frame and the outer frame, the shock-absorbing connector located between the outer frame and the structural beam will be compressed under the action of vibration. In this process, the shock energy is absorbed by compression deformation and converted into heat energy, which can buffer the vibration force transmitted to the inner frame. This significantly reduces the vibration of the battery pack during vehicle operation, thereby ensuring vehicle safety and extending the service life of the battery pack. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model; Figure 3 This is a schematic diagram of the shock-absorbing connector and structural beam in this utility model; Figure 4 This is a schematic diagram of the inner frame in this utility model.

[0015] In the diagram: 1. Main frame; 2. First hanger; 3. Outer frame; 4. Vibration damping connector; 5. Structural beam; 6. Second hanger; 7. Inner frame; 8. Weight reduction hole; 9. Diagonal connecting rod; 10. Reinforcing beam; 11. Connecting beam. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-4 A vehicle frame shock absorption structure includes a main frame 1 for supporting the vehicle's chassis. Four sets of first hangers 2 are connected to both sides of the main frame 1. An outer frame 3 is fixedly connected to the bottom of each first hanger 2. Through the connection of the first hangers 2, the main frame 1 and the outer frame 3 form an integral frame structure. When the battery pack is mounted inside the frame, the frame structure formed by the main frame 1 and the outer frame 3 effectively protects the battery pack. Shock-absorbing connectors 4 are arranged side-by-side on both sides of the outer frame 3. Two sets of structural beams 5 are also arranged above both sides of the outer frame 3. The side-by-side shock-absorbing connectors 4 connect the structural beams 5 to the top of the outer frame 3. Simultaneously, the shock-absorbing connectors 4... Rubber bushings, hydraulic bushings, or polymer damping blocks, when the shock-absorbing connector 4 is compressed, can absorb impact energy through compression deformation and convert it into heat energy. When the frame is vibrated, the vibration of the outer frame 3 will not be directly transmitted to the structural beam 5. The vibration is buffered by the shock-absorbing connector 4 to reduce the vibration force on the structural beam 5. The inner walls of the structural beam 5 are fixedly connected to the two sides of the second hanger 6. The bottom end of the second hanger 6 extends to the bottom of the outer frame 3 and is fixedly connected to the inner frame 7. The bottom of the inner frame 7 is provided with several sets of mounting holes. The position of the mounting holes corresponds to the position of the screw holes on the battery pack. Therefore, the battery pack can be fixedly installed on the inner frame 7 by screws.

[0019] After the frame is assembled, the battery pack can be fixed to the inner frame 7 with screws. At this time, the battery pack will be completely covered inside the frame structure formed by the main frame 1 and the outer frame 3, thus protecting the battery pack. The spacing of the shock-absorbing connector 4 makes the inner frame 7 "float" on the outer frame 3, rather than being in rigid contact with the outer frame 3. When the vibration caused by vehicle bumps is transmitted to the main frame 1 and the outer frame 3, the shock-absorbing connector 4 located between the outer frame 3 and the structural beam 5 will be compressed under the force of the vibration. In this process, the shock energy is absorbed by the compression deformation and converted into heat energy, which can buffer the vibration force transmitted to the inner frame 7. This significantly reduces the vibration of the battery pack during vehicle operation, thereby ensuring vehicle safety and extending the service life of the battery pack.

[0020] For further details, please refer to Figure 4The main frame 1, the first hanger 2, the outer frame 3, the structural beam 5, the second hanger 6, and the inner frame 7 are all made of aluminum alloy, which is lightweight and corrosion resistant. Furthermore, the main frame 1, the first hanger 2, the outer frame 3, the structural beam 5, the second hanger 6, and the inner frame 7 are all equipped with weight-reducing holes 8, which further reduce the overall weight of the frame and thus meet the requirements for lightweight manufacturing.

[0021] For further details, please refer to Figure 2 The outer frame 3 is connected to the four corners with diagonal connecting rods 9. The diagonal connecting rods 9 can form a triangular force-bearing structure, thereby improving the overall strength of the outer frame 3 and preventing the outer frame 3 from deforming under the impact of external forces, thus improving the protection effect of the battery pack.

[0022] For further details, please refer to Figure 2 Two sets of parallel reinforcing beams 10 are respectively provided on both sides of the outer frame 3. This allows the outer frame 3 to form a multi-layered protective structure around the battery pack. A connecting beam 11 connects the two sets of reinforcing beams 10. The connecting beam 11 improves the integrity between the two sets of reinforcing beams 10, ensuring that the two sets of reinforcing beams 10 on the outer side can share the force when the outer frame 3 is subjected to external impact. This makes the outer frame 3 less prone to overall deformation and further improves the protection effect on the battery pack inside the outer frame 3.

[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle frame shock absorption structure, comprising a main frame (1), characterized in that, The main frame (1) is connected to four sets of first hangers (2) on both sides. The bottom of the first hangers (2) is fixedly connected to an outer frame (3). The outer frame (3) is provided with shock-absorbing connectors (4) on both sides. The outer frame (3) is also provided with two sets of structural beams (5) on the upper sides of both sides. The inner walls of the structural beams (5) are fixedly connected to second hangers (6). The bottom end of the second hangers (6) extends to the bottom of the outer frame (3) and is fixedly connected to an inner frame (7).

2. The vehicle frame shock absorption structure according to claim 1, characterized in that, The shock-absorbing connector (4) is a rubber bushing, a hydraulic bushing, or a polymer material damping block.

3. The vehicle frame shock absorption structure according to claim 1, characterized in that, The main frame (1), the first hanger (2), the outer frame (3), the structural beam (5), the second hanger (6) and the inner frame (7) are all made of aluminum alloy. Weight reduction holes (8) are distributed on the main frame (1), the first hanger (2), the outer frame (3), the structural beam (5), the second hanger (6) and the inner frame (7).

4. The vehicle frame shock absorption structure according to claim 1, characterized in that, The outer frame (3) is connected to diagonal connecting rods (9) at the four corners.

5. The vehicle frame shock absorption structure according to claim 1, characterized in that, Two sets of parallel reinforcing beams (10) are respectively provided on both sides of the outer frame (3), and a connecting beam (11) connects the two adjacent sets of reinforcing beams (10).

6. The vehicle frame shock absorption structure according to claim 1, characterized in that, The bottom of the inner frame (7) is provided with several sets of mounting holes, the positions of which correspond to the positions of the screw holes on the battery pack.

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