Electric vehicle frame tube reinforcement structure

Abstract

The utility model provides a kind of electric vehicle frame pipe reinforcing structure, comprising: outer tube, as the main load-bearing part of frame pipe;Inner tube, nested in the outer tube inside, and gap is reserved between inner tube and outer tube;Spiral reinforcing rib, respectively set on the outer surface of inner tube and the inner surface of outer tube, the cross-sectional shape of reinforcing rib is trapezoidal, spiral angle is 30 ° to 45 °, for dispersing and transmitting the stress that frame pipe receives;Elastic filling layer, filled in the gap between the inner tube and outer tube, for absorbing and dispersing impact force, prevent inner tube and outer tube from colliding and wearing.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frames, and in particular to a reinforcement structure for electric vehicle frame tubes. Background Technology

[0002] With increasing environmental awareness and worsening urban traffic congestion, electric vehicles, as a convenient and environmentally friendly mode of transportation, have been widely used around the world. As an important component of electric vehicles, the frame of an electric vehicle is responsible for supporting the vehicle body, carrying various parts, and bearing various forces during driving. Its performance directly affects the safety, comfort, and service life of the electric vehicle.

[0003] Traditional electric vehicle frame tubes typically employ a single tubular structure. While this structure can meet basic usage requirements to some extent, it reveals numerous shortcomings when facing complex road conditions and heavy loads. Traditional single-tubular frame tubes are prone to deformation or even breakage when subjected to significant vertical loads, torsional forces, and impacts. For example, when an electric vehicle travels at high speed over bumpy roads, the frame tubes are subjected to frequent impacts and vibrations. The single-tubular structure struggles to effectively disperse and transfer these stresses, leading to localized stress concentrations that affect the overall strength and stability of the frame. This insufficient load-bearing capacity of the frame tubes becomes particularly pronounced when carrying heavy passengers or cargo, severely impacting the safety and reliability of the electric vehicle.

[0004] In addition, electric vehicles inevitably encounter various collisions and impacts during daily use, such as minor collisions with other objects and inertial impacts caused by sudden braking during driving. Traditional frame tubes lack effective buffering and energy absorption structures, making it impossible to absorb and disperse these impact forces in time, which makes the frame tubes susceptible to damage and shortens the service life of the frame. Moreover, such impacts may also be transmitted to other parts of the vehicle body, affecting the overall performance and ride comfort of the electric vehicle. Utility Model Content

[0005] To address the issues of strength and load-bearing capacity in traditional electric vehicle frames in the prior art, this utility model provides an electric vehicle frame tube reinforcement structure.

[0006] The electric vehicle frame tube reinforcement structure provided by this utility model adopts the following technical solution:

[0007] An electric vehicle frame tube reinforcement structure includes:

[0008] The outer tube serves as the main load-bearing component of the frame tube;

[0009] The inner tube is nested inside the outer tube, with a gap reserved between the inner tube and the outer tube;

[0010] Spiral reinforcing ribs are respectively set on the outer surface of the inner tube and the inner surface of the outer tube. The cross-sectional shape of the reinforcing ribs is trapezoidal, and the spiral angle is 30° to 45°. They are used to disperse and transfer the stress on the frame tubes.

[0011] An elastic filler layer is placed in the gap between the inner tube and the outer tube to absorb and disperse impact forces and prevent the inner tube and the outer tube from colliding and wearing each other.

[0012] Furthermore, the gap width between the inner tube and the outer tube is 1 to 2 millimeters;

[0013] Furthermore, the height of the spiral reinforcing rib is 2 to 3 mm, and the bottom width is 3 to 5 mm;

[0014] Furthermore, the elastic filling layer is made of rubber or polyurethane foam, which has good cushioning properties;

[0015] Furthermore, the inner tube is made of aluminum alloy or titanium alloy to improve the strength of the frame tube and reduce its weight.

[0016] Furthermore, both the outer and inner tubes have circular cross-sectional shapes to facilitate processing and installation;

[0017] Furthermore, the frame tube reinforcement structure is applicable to the main load-bearing frame tubes of electric vehicles, including but not limited to the front fork tube, rear swingarm tube, and main beam tube.

[0018] In summary, the beneficial effects of this utility model are as follows:

[0019] This invention significantly improves the strength and load-bearing capacity of the frame tubes by employing a nested inner and outer tube structure, with spiral reinforcing ribs and an elastic filling layer between the inner and outer tubes. This better disperses and transmits stress, reduces local stress concentration, and enhances the stability and reliability of the frame under complex road conditions. The elastic filling layer absorbs and disperses impact forces, improving the impact resistance of the frame tubes, protecting the frame from damage, and extending the frame's service life. Furthermore, the inner tubes are made of lightweight, high-strength materials such as aluminum alloy or titanium alloy, which reduces the weight of the frame while ensuring strength, thus improving the energy efficiency and handling performance of the electric vehicle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the outer tube of this utility model;

[0023] Figure 4This is a schematic diagram of the overall structure of the inner tube of this utility model.

[0024] As shown in the figure: 1-outer tube, 2-inner tube, 3-reinforcing rib, 4-elastic filling layer. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described in detail below:

[0026] This utility model discloses a reinforcement structure for the frame tube of an electric vehicle, such as... Figure 1-4 As shown, an electric vehicle frame tube reinforcement structure includes: an outer tube 1, serving as the main load-bearing part of the frame tube; an inner tube 2, nested inside the outer tube 1, with a pre-existing gap between the inner tube 2 and the outer tube 1; spiral reinforcing ribs 3, respectively disposed on the outer surface of the inner tube 2 and the inner surface of the outer tube 1, the reinforcing ribs 3 having a trapezoidal cross-sectional shape and a spiral angle of 30° to 45°, used to disperse and transfer the stress on the frame tube; and an elastic filling layer 4, filling the gap between the inner tube 2 and the outer tube 1, used to absorb and disperse impact forces and prevent collision wear between the inner tube 2 and the outer tube 1. In this embodiment, this nesting design aims to increase the load-bearing capacity of the frame tube through a double-layer structure, while the existence of the gap provides space for subsequent reinforcement and buffering designs; the nesting structure of the inner and outer tubes 1 effectively disperses the load borne by the frame, improving the overall load-bearing capacity. The pre-existing gap provides the possibility for subsequent addition of reinforcing ribs 3 and elastic filling layer 4, enhancing the reinforcement effect of the frame tube.

[0027] The gap width between the inner tube 2 and the outer tube 1 is 1 to 2 mm. In this embodiment, the gap width between the inner tube 2 and the outer tube 1 is set to 1 to 2 mm. This width is calculated to ensure sufficient space for filling the elastic material while avoiding structural looseness caused by excessive gap. The appropriate gap width allows the elastic filling layer 4 to be filled evenly, thus better playing a buffering role. It avoids the overall looseness of the frame tube structure caused by excessive gap, ensuring the compactness and stability of the frame.

[0028] The height of the spiral reinforcing rib 3 is 2 to 3 mm, and the bottom width is 3 to 5 mm. In this embodiment, the spiral reinforcing rib 3 is respectively disposed on the outer surface of the inner tube 2 and the inner surface of the outer tube 1, and its cross-sectional shape is trapezoidal with a spiral angle of 30° to 45°. This design allows the reinforcing rib 3 to better disperse and transfer the stress on the frame tube, thereby improving the frame tube's resistance to deformation. The trapezoidal cross-sectional shape and appropriate spiral angle enable the reinforcing rib 3 to effectively disperse the stress on the frame tube, reducing the risk of local overload. The presence of the reinforcing rib 3 enhances the rigidity of the frame tube and improves its resistance to deformation.

[0029] The elastic filler layer 4 is made of rubber or polyurethane foam, which has good cushioning properties. In this embodiment, the elastic filler layer 4 fills the gap between the inner tube 2 and the outer tube 1, and is made of materials with good cushioning properties such as rubber or polyurethane foam. This design aims to absorb and disperse impact forces and prevent collision wear between the inner tube 2 and the outer tube 1. The elastic filler layer 4 can effectively absorb and disperse the impact forces received by the frame and protect the frame tubes from damage. The presence of the filler layer reduces the direct contact between the inner tube 2 and the outer tube 1, thereby reducing wear caused by friction.

[0030] The inner tube 2 is made of aluminum alloy or titanium alloy to improve the strength of the frame tube and reduce its weight. In this embodiment, the inner tube 2 is made of lightweight, high-strength materials such as aluminum alloy or titanium alloy. These materials have good mechanical properties and corrosion resistance, which can meet the strength and weight requirements of the frame tube. Lightweight, high-strength materials such as aluminum alloy and titanium alloy enable the frame tube to have sufficient load-bearing capacity while maintaining a lightweight design. The selection of lightweight materials helps to reduce the overall weight of the frame and improve the energy efficiency and range of the electric vehicle.

[0031] like Figure 1-4 As shown, the cross-sectional shape of both the outer tube 1 and the inner tube 2 is circular to facilitate processing and installation. In this embodiment, the cross-sectional shape of both the inner tube 2 and the outer tube 1 is designed to be circular. This shape not only facilitates processing and installation but also improves the torsional resistance of the frame tube. The circular cross-sectional shape makes the frame tube easier to process and install, reducing production costs. The circular cross-section can effectively resist torsional forces, ensuring the stability and safety of the frame tube.

[0032] The frame tube reinforcement structure is applicable to the main load-bearing frame tubes of electric vehicles, including but not limited to the front fork tube, rear swingarm tube, and main beam tube.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for an electric vehicle frame tube, characterized in that, include: The outer tube (1) serves as the main load-bearing component of the frame tube; The inner tube (2) is nested inside the outer tube (1), and a gap is reserved between the inner tube (2) and the outer tube (1); Spiral reinforcing ribs (3) are respectively set on the outer surface of the inner tube (2) and the inner surface of the outer tube (1). The cross-sectional shape of the reinforcing ribs (3) is trapezoidal, and the spiral angle is 30° to 45°. They are used to disperse and transmit the stress on the frame tube. An elastic filling layer (4) is filled in the gap between the inner tube (2) and the outer tube (1) to absorb and disperse impact force and prevent the inner tube (2) and the outer tube (1) from colliding and wearing.

2. The electric vehicle frame tube reinforcement structure according to claim 1, characterized in that, The gap width between the inner tube (2) and the outer tube (1) is 1 to 2 millimeters.

3. The electric vehicle frame tube reinforcement structure according to claim 1, characterized in that, The height of the spiral reinforcing rib (3) is 2 to 3 mm, and the bottom width is 3 to 5 mm.

4. The electric vehicle frame tube reinforcement structure according to claim 1, characterized in that, The elastic filling layer (4) is made of rubber or polyurethane foam, which has good cushioning properties.

5. The electric vehicle frame tube reinforcement structure according to claim 1, characterized in that, The inner tube (2) is made of aluminum alloy or titanium alloy to improve the strength of the frame tube and reduce its weight.

6. The electric vehicle frame tube reinforcement structure according to claim 1, characterized in that, Both the outer tube (1) and the inner tube (2) have circular cross-sectional shapes to facilitate processing and installation.

7. The electric vehicle frame tube reinforcement structure according to claim 1, characterized in that, The frame tube reinforcement structure is applicable to the main load-bearing frame tubes of electric vehicles, including but not limited to the front fork tube, rear swingarm tube, and main beam tube.

Images