Main beam structure of electric vehicle frame

Abstract

The utility model discloses a main beam structure of an electric vehicle frame, which belongs to the technical field of electric vehicles, and adopts the technical scheme that the main beam structure comprises a main beam body, the side wall of the main beam body is provided with two oppositely arranged connecting holes I and two oppositely arranged connecting holes II, the two connecting holes I are both used for being fixedly connected with an upper edge beam, and the two connecting holes II are used for being fixedly connected with a lower edge beam. The main beam body comprises an outer pipe and a reinforcing pipe, the reinforcing pipe is arranged in the outer pipe, a plurality of supporting blocks are integrally arranged between the outer pipe and the reinforcing pipe, the supporting blocks are distributed at equal intervals in the circumferential direction of the outer pipe, a plurality of supporting ribs are integrally arranged between the outer pipe and the reinforcing pipe, and the supporting ribs are arranged in the outer pipe. The supporting ribs are arranged in parallel in the diagonal direction of the cross section of the outer pipe, and the structure can effectively enhance the structural strength and durability of the main beam.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicles, and particularly relates to the main beam structure of an electric vehicle frame. Background Art

[0002] An electric vehicle refers to a mechatronic personal transportation vehicle that uses a storage battery as a power source, in combination with operating components such as a motor, a controller, a throttle grip, a brake lever, and a display instrument system. It has won the favor of the majority of consumers due to its advantages such as affordable price, labor-saving convenience, easy movement, energy conservation and environmental protection, low usage cost, and diverse appearances.

[0003] The current electric vehicle frame generally includes a head beam, a main beam, an upper side beam, and a lower side beam. The upper end of the main beam is fixedly connected to the head beam, and both the upper side beam and the lower side beam are fixedly connected to the main beam. Among them, the main beam, as the core support structure of the frame, plays a crucial role. The main beam not only needs to bear the weight of the vehicle and additional loads, including the weight of the driver, passengers, and goods, but also needs to cope with various complex forces and torques during the driving process of the electric vehicle, such as the traction force during acceleration, the braking force during braking, and the centrifugal force during turning. The complexity and variability of these forces and torques pose extremely high requirements for the structure and strength of the main beam. The structure and strength of the main beam directly affect the driving stability of the electric vehicle and are the key factors to ensure driving safety and comfort. Therefore, it is necessary to improve the structure of the main beam to further enhance the structural strength of the main beam. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a main beam structure of an electric vehicle frame in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is: how to enhance the structural strength of the main beam.

[0005] The above technical purpose of the utility model can be achieved by the following technical solutions: the main beam structure of an electric vehicle frame, including a main beam body. Two relatively arranged connection holes one and two relatively arranged connection holes two are opened on the side wall of the main beam body. Both of the two connection holes one are used for fixedly connecting with the upper side beam, and both of the two connection holes two are used for fixedly connecting with the lower side beam. The main beam body includes an outer tube and a strengthening tube. The strengthening tube is arranged inside the outer tube. A plurality of support blocks are integrally arranged between the outer tube and the strengthening tube. The plurality of support blocks are equidistantly distributed along the circumferential direction of the outer tube. A plurality of support ribs are integrally arranged between the outer tube and the strengthening tube. The support ribs are arranged parallel to the diagonal direction of the cross-section of the outer tube.

[0006] In the above main beam structure of the electric vehicle frame, the cross-sections of the plurality of support blocks are all trapezoidal structures.

[0007] In the main beam structure of the above-mentioned electric vehicle frame, a strengthening ring is provided at the end of the main beam body, and the surface of the strengthening ring is arc-shaped.

[0008] In the main beam structure of the above-mentioned electric vehicle frame, the inner side walls of both of the first connecting holes have a first strengthening ring, and the inner side walls of both of the second connecting holes have a second strengthening ring.

[0009] In the main beam structure of the above-mentioned electric vehicle frame, both ends of the first strengthening ring are fixedly connected to the outer tube and the strengthening tube respectively, and both ends of the second strengthening ring are fixedly connected to the outer tube and the strengthening tube respectively.

[0010] In the main beam structure of the above-mentioned electric vehicle frame, an outer wrapping plate is fixedly covered on the outer side wall of the outer tube, and the outer wrapping plate is close to the first connecting hole and the second connecting hole.

[0011] In the main beam structure of the above-mentioned electric vehicle frame, the cross-section of the outer wrapping plate is U-shaped, and a first avoiding hole and a second avoiding hole corresponding to the first connecting hole and the second connecting hole respectively are formed in the outer wrapping plate.

[0012] In the main beam structure of the above-mentioned electric vehicle frame, positioning rib strips are provided on the outer side wall of the outer tube, and the end of the outer wrapping plate abuts against the positioning rib strips.

[0013] In the main beam structure of the above-mentioned electric vehicle frame, an anti-rust coating is provided on the outer side wall of the outer tube.

[0014] In the main beam structure of the above-mentioned electric vehicle frame, the anti-rust coating is made of graphite anti-rust paint, and the thickness of the anti-rust coating is 0.12 cm.

[0015] In summary, the beneficial effects of the present utility model compared with the prior art are as follows:

[0016] By arranging a strengthening tube, a plurality of supporting rib strips and a plurality of equidistantly distributed supporting blocks in the outer tube, the structural strength of the main beam body is enhanced, so that the main beam body can better withstand various forces and torques during the driving of the electric vehicle, thereby improving the overall stability and safety of the frame, and also helping to improve the durability of the main beam body, reducing deformation caused by long-term stress, and thus extending the service life. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the embodiment;

[0018] Figure 2 It is a cross-sectional view of the embodiment;

[0019] Figure 3 It is a schematic structural diagram of the outer wrapping plate of the embodiment.

[0020] Reference numerals: 1, main beam body; 2, first connection hole; 3, second connection hole; 4, outer tube; 5, reinforcement tube; 6, support block; 7, support rib; 8, reinforcement ring; 9, first strengthening ring; 10, second strengthening ring; 11, outer cladding plate; 12, first avoidance hole; 13, second avoidance hole; 14, positioning rib. Detailed implementation manners

[0021] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0022] The main beam structure of an electric vehicle frame, as Figures 1 to 3 shown, includes a main beam body 1. Two first connection holes 2 arranged oppositely and two second connection holes 3 arranged oppositely are formed on the side wall of the main beam body 1. The two first connection holes 2 and the two second connection holes 3 are respectively distributed on both sides of the main beam body 1. Both of the two first connection holes 2 are used for fixedly connecting with the upper side beam, and both of the two second connection holes 3 are used for fixedly connecting with the lower side beam.

[0023] Reinforcing rings 9 are provided on the inner side walls of both of the two first connection holes 2, and reinforcing rings 10 are provided on the inner side walls of both of the two second connection holes 3. The first reinforcing ring 9 and the second reinforcing ring 10 can respectively ensure the structural strength around the first connection hole 2 and the second connection hole 3, and prevent deformation or damage due to excessive force.

[0024] The main beam body 1 includes an outer tube 4 and a reinforcement tube 5. The reinforcement tube 5 is arranged inside the outer tube 4. A plurality of support blocks 6 are integrally arranged between the outer tube 4 and the reinforcement tube 5. The plurality of support blocks 6 are evenly distributed along the circumferential direction of the outer tube 4. It should be noted that the support blocks 6 can provide additional support and fixation functions, prevent relative movement or deformation of the outer tube 4 and the reinforcement tube 5 when stressed, thereby improving the strength and durability of the main beam body 1.

[0025] Furthermore, the cross-sections of the plurality of support blocks 6 are all trapezoidal structures. The trapezoidal structure can effectively disperse the force acting on the main beam body 1 and reduce the concentration of local stress, thereby improving the durability of the main beam body 1.

[0026] An anti-rust coating is provided on the outer side wall of the outer tube 4. By means of the anti-rust coating, the outer tube 4 is prevented from directly contacting the external environment, thereby reducing the corrosion of the outer tube 4 and prolonging the service life.

[0027] Specifically, in this embodiment, the anti-rust coating adopts graphite anti-rust paint, and the thickness of the anti-rust coating is preferably 0.12 cm. As another solution, the thickness of the anti-rust coating can also be 0.1 cm.

[0028] A number of support ribs 7 are integrally arranged between the outer tube 4 and the reinforced tube 5. The support ribs 7 are arranged parallel to the diagonal direction of the cross-section of the outer tube 4. It should be noted that the support ribs 7 not only help to improve the structural strength of the main beam, but also are arranged parallel to the diagonal direction of the cross-section of the outer tube 4, which can more effectively resist the deformation of the main beam when it is subjected to lateral force or torsional force, thereby improving the anti-deformation ability of the main beam.

[0029] Both ends of the first reinforcing ring 9 are fixedly connected to the outer tube 4 and the reinforced tube 5 respectively. Both ends of the second reinforcing ring 10 are fixedly connected to the outer tube 4 and the reinforced tube 5 respectively. Under the action of the first reinforcing ring 9 and the second reinforcing ring 10, the structural strength and stability of the main beam can be further improved.

[0030] A reinforcing ring 8 is arranged at the end of the main beam body 1. The surface of the reinforcing ring 8 is arc-shaped, which can not only improve the structural strength of the main beam body 1, but also reduce the risk of cracks at the end of the main beam body 1.

[0031] An outer wrapping plate 11 is fixedly covered on the outer side wall of the outer tube 4, and the outer wrapping plate 11 is close to the first connecting hole 2 and the second connecting hole 3. It should be noted that since the structural strength of the outer tube 4 is affected after the first connecting hole 2 and the second connecting hole 3 are opened, the structural strength of the peripheral areas of the first connecting hole 2 and the second connecting hole 3 is enhanced through the outer wrapping plate 11, and the outer wrapping plate 11 can enhance the anti-deformation ability of the outer tube 4.

[0032] The cross-section of the outer wrapping plate 11 is U-shaped. The U-shaped structure makes the structural strength and stability of the outer wrapping plate 11 better, and it is convenient to fixedly connect the outer wrapping plate 11 to the outer tube 4. Avoidance holes 12 and 13 corresponding to the first connecting hole 2 and the second connecting hole 3 respectively are opened on the outer wrapping plate 11. The avoidance hole 12 and the avoidance hole 13 respectively avoid the upper side beam and the lower side beam.

[0033] Positioning ribs 14 are arranged on the outer side wall of the outer tube 4. The end of the outer wrapping plate 11 abuts against the positioning ribs 14, thereby restricting the position of the outer wrapping plate 11 and improving its stability. Moreover, when the outer wrapping plate 11 is fixedly connected to the outer tube 4, the position of the outer wrapping plate 11 on the outer tube 4 can be kept stable, without worrying about the movement of the outer wrapping plate 11, making the operation of fixedly connecting the outer wrapping plate 11 to the outer tube 4 more convenient and fast.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention; those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. The main beam structure of an electric vehicle frame, characterized in that: It includes a main beam body (1). Two connecting holes one (2) which are oppositely arranged and two connecting holes two (3) which are oppositely arranged are formed on the side wall of the main beam body (1). Both of the two connecting holes one (2) are used for fixedly connecting with the upper side beam, and both of the two connecting holes two (3) are used for fixedly connecting with the lower side beam. The main beam body (1) includes an outer tube (4) and a strengthening tube (5). The strengthening tube (5) is arranged inside the outer tube (4). A plurality of support blocks (6) are integrally arranged between the outer tube (4) and the strengthening tube (5). The plurality of support blocks (6) are equidistantly distributed along the circumferential direction of the outer tube (4). A plurality of support ribs (7) are integrally arranged between the outer tube (4) and the strengthening tube (5). The support ribs (7) are arranged parallel to the diagonal direction of the cross-section of the outer tube (4).

2. The main beam structure of the electric vehicle frame according to claim 1, characterized in that: The cross-sections of the plurality of support blocks (6) are all trapezoidal structures.

3. The main beam structure of the electric vehicle frame according to claim 1, characterized in that: An end of the main beam body (1) is provided with a strengthening ring (8), and the surface of the strengthening ring (8) is arc-shaped.

4. The main beam structure of the electric vehicle frame according to claim 1, characterized in that: Inner side walls of both of the two connecting holes one (2) are respectively provided with a strengthening ring one (9), and inner side walls of both of the two connecting holes two (3) are respectively provided with a strengthening ring two (10).

5. The main beam structure of the electric vehicle frame according to claim 4, characterized in that: Two ends of the strengthening ring one (9) are respectively fixedly connected with the outer tube (4) and the strengthening tube (5), and two ends of the strengthening ring two (10) are respectively fixedly connected with the outer tube (4) and the strengthening tube (5).

6. The main beam structure of the electric vehicle frame according to claim 1, characterized in that: An outer wrapping plate (11) is fixedly covered on the outer side wall of the outer tube (4), and the outer wrapping plate (11) is close to the connecting holes one (2) and the connecting holes two (3).

7. The main beam structure of the electric vehicle frame according to claim 6, characterized in that: The cross-section of the outer wrapping plate (11) is U-shaped. Avoidance holes one (12) and avoidance holes two (13) which respectively correspond to the connecting holes one (2) and the connecting holes two (3) are formed on the outer wrapping plate (11).

8. The main beam structure of the electric vehicle frame according to any one of claims 6 or 7, characterized in that: Positioning ribs (14) are arranged on the outer side wall of the outer tube (4), and an end of the outer wrapping plate (11) abuts against the positioning ribs (14).

9. The main beam structure of the electric vehicle frame according to claim 1, characterized in that: An anti-rust coating is arranged on the outer side wall of the outer tube (4).

10. The main beam structure of the electric vehicle frame according to claim 9, characterized in that: The anti-rust coating adopts graphite anti-rust paint, and the thickness of the anti-rust coating is 0.12 cm.

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