Fusiform streamline structure control arm

Abstract

The utility model relates to the technical field of automobile control arms, in particular to a fusiform streamline structure control arm which comprises a control arm body, the control arm body is integrally formed through a stamping process, the upper surface and the lower surface of the control arm body are both in a fusiform streamline shape and used for increasing the stress area of the control arm body, and the control arm body comprises an upper plane. Side vertical faces are integrally formed on the two sides of the upper plane respectively, lower planes are integrally formed on the tops of the two side vertical faces respectively, and side flanges are integrally formed on one sides of the two lower planes respectively. According to the control arm, the manufacturing cost of the control arm is saved, welding assembly is not needed, the weight of the control arm is reduced, the strength and rigidity of the control arm are improved, meanwhile, the welding quality problems such as incomplete penetration, burnthrough and thermal deformation cannot occur, the product stability of the control arm is improved, the bearing capacity of the control arm is improved, and the service life of the control arm is prolonged. The situation that the machining cost of an existing control arm is increased due to the fact that the existing control arm is complex in design and needs welding fixation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive control arms, in particular to a control arm with a spindle streamline structure. Background Art

[0002] In electric vehicles, the control arm is a bridge connecting the steering knuckle and the subframe. The structural performance and weight of the control arm directly affect the safety and stability of the whole vehicle. Most of the existing control arms are welded with multiple reinforcing plates on the main body. However, this structural design is relatively complex. The increase in the number of parts will lead to an increase in the weight of the control arm. At the same time, due to the existence of the welding process, the welding cost is increased, resulting in an increase in the production cost of the control arm. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a control arm with a spindle streamline structure, which solves the problems that the design of the prior art is relatively complex and the increase in the number of parts leads to an increase in welding cost due to the need for welding fixation.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] A control arm with a spindle streamline structure includes a control arm main body. The control arm main body is integrally formed by stamping process, and the upper and lower surfaces of the control arm main body are both spindle-shaped streamline, which is used to increase the stress area of the control arm main body. The control arm main body includes an upper plane, and side vertical surfaces are integrally formed on both sides of the upper plane respectively. Lower planes are integrally formed at the tops of the two side vertical surfaces respectively. Side flanges are integrally formed on one sides of the two lower planes respectively.

[0006] Furthermore, the cross-section of the control arm main body is set as a "U" shape, which is used to strengthen the cross-sectional moment of inertia of the control arm main body.

[0007] Furthermore, mounting through holes one for connecting and mounting the subframe are respectively opened at one ends of the two side vertical surfaces.

[0008] Furthermore, mounting through holes two for mounting the stabilizer link are respectively opened in the middle parts of the two side vertical surfaces.

[0009] Furthermore, mounting through holes three for mounting the steering knuckle are respectively opened at the other ends of the two side vertical surfaces.

[0010] Furthermore, a mounting through hole four for mounting the shock absorber and opened on the side vertical surface is arranged between the mounting through hole two and the mounting through hole three.

[0011] By means of the above technical solutions, the utility model provides a control arm with a spindle streamline structure. Compared with the prior art, it has at least the following beneficial effects:

[0012] 1. The utility model is formed by single-piece stamping and is used to connect the steering knuckle and the subframe. It only includes one part, the control arm. This not only saves the manufacturing cost of the control arm but also eliminates the need for welding and assembly, reducing the weight of the control arm, improving its strength and rigidity. At the same time, there will be no welding quality problems such as incomplete penetration, burn-through, and thermal deformation, enhancing the product stability of the control arm and avoiding the situation where the complex design of the existing control arm requires welding for fixation, thus increasing the processing cost of the control arm.

[0013] 2. The utility model is processed by stamping steel plate materials. The steel plate materials have high strength and strong resistance to deformation, enhancing the safety and stability of the whole vehicle. The upper and lower shapes of the control arm are spindle-shaped streamline, increasing the stress area, thereby improving the bearing capacity of the control arm and enabling it to withstand greater loads. At the same time, the cross-section of the control arm is in a "ji" shape, strengthening the moment of inertia of the control arm cross-section and thus enhancing the structural stability of the control arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 [[ID=十七]]is a top view structure schematic diagram of the utility model;

[0017] Figure 3 [[ID=二十]]is a front view structure schematic diagram of the utility model;

[0018] Figure 4 is a side view structure schematic diagram of the utility model.

[0019] In the figure: 10. Control arm main body; <000004[6]]

[0020] 11. Upper plane; 12. Side vertical plane; 13. Lower plane; 14. Side flanging; 15. Mounting through hole one; 16. Mounting through hole two; 17. Mounting through hole three; 18. Mounting through hole four. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The control arm of an electric vehicle plays a crucial role in the vehicle suspension system. It connects the steering knuckle and the subframe, supports the body weight, and ensures that the wheels maintain the correct geometric position during movement. The traditional control arm consists of a main body and multiple reinforcing plates welded to the main body. However, the need for welding multiple parts together not only increases the welding cost of the control arm but also increases its weight. To avoid the situation where the existing control arm design is complex and requires welding for fixation, which increases the processing cost of the control arm, and to reduce the weight of the control arm, as Figure 1 - Figure 4 shown, a control arm with a spindle streamline structure is provided, which includes a control arm main body (10). The control arm main body (10) is integrally formed by a stamping process, making the overall structure of the control arm more compact, providing higher strength and rigidity. At the same time, the integral formation reduces the need for welding and splicing, effectively reducing the weight of the control arm. Moreover, the production speed of the stamping process is relatively fast, enabling high-volume production and reducing production costs.

[0023] Both the upper and lower surfaces of the control arm main body (10) are spindle-shaped and streamlined, which is used to increase the stress area of the control arm main body (10), thereby improving the bearing capacity of the control arm and enabling it to withstand greater loads. The cross-section of the control arm main body (10) is set in a "U" shape to strengthen the section moment of inertia of the control arm main body (10), thereby enhancing the structural stability of the control arm.

[0024] To save the manufacturing cost of the control arm and reduce its overall weight, as Figure 2 shown, the specific implementation method is that the control arm main body (10) includes an upper plane (11). On both sides of the upper plane (11), side vertical surfaces (12) are integrally formed respectively. At the tops of the two side vertical surfaces (12), lower planes (13) are integrally formed respectively. On one side of the two lower planes (13), side flanges (14) are integrally formed respectively. The "U"-shaped control arm main body (10) is composed of the upper plane (11), the two side vertical surfaces (12), the two lower planes (13), and the two side flanges (14), strengthening the section moment of inertia of the control arm main body (10), thereby improving the strength and rigidity of the control arm and enhancing the structural stability of the control arm. Thus, the reinforcing plates that need to be welded are eliminated, the number of parts is reduced, the weight of the parts is reduced, lightweight is achieved, and there is no need for welding, reducing the welding cost, and further reducing the production cost of the entire control arm.

[0025] One end of each of the two side vertical surfaces 12 is provided with a mounting through hole 15 for connecting and mounting the subframe. The middle part of each of the two side vertical surfaces 12 is provided with a mounting through hole 2 16 for mounting the stabilizer link. The other end of each of the two side vertical surfaces 12 is provided with a mounting through hole 3 17 for mounting the steering knuckle. Between the mounting through holes 2 16 and the mounting through holes 3 17, there is a mounting through hole 4 18 on the side vertical surface 12 for mounting the shock absorber. The subframe, stabilizer link, steering knuckle and shock absorber are all existing components on electric vehicles, which are connected and mounted on the control arm body 10 to ensure the safety and stability of the whole vehicle.

[0026] Mounting through holes 15, 16, 17, and 18 are integrally formed on the two vertical sides 12 of the control arm body 10, respectively, for mounting components connected to the vehicle. All mounting through holes are made by stamping, which makes it easier and more flexible to install other connecting parts on the control arm body 10, thus expanding the applicability of the control arm body 10.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A streamlined control arm with a spindle shape, comprising a control arm body (10), characterized in that: The control arm body (10) is integrally formed by a stamping process, and the upper and lower surfaces of the control arm body (10) are both spindle-shaped streamline to increase the stress area of the control arm body (10); The control arm body (10) includes an upper plane (11), on both sides of the upper plane (11), side vertical surfaces (12) are integrally formed respectively, at the tops of the two side vertical surfaces (12), lower planes (13) are integrally formed respectively, and on one sides of the two lower planes (13), side flanges (14) are integrally formed respectively.

2. The streamlined control arm according to claim 1, characterized in that: The cross-section of the control arm body (10) is set as a "C" shape to strengthen the section moment of inertia of the control arm body (10).

3. The streamlined control arm according to claim 1, characterized in that: At one ends of the two side vertical surfaces (12), mounting through holes one (15) for connecting and mounting a subframe are respectively opened.

4. The streamlined control arm according to claim 1, characterized in that: In the middle parts of the two side vertical surfaces (12), mounting through holes two (16) for mounting a stabilizer link are respectively opened.

5. A streamlined control arm according to claim 4, characterized in that: At the other ends of the two side vertical surfaces (12), mounting through holes three (17) for mounting a steering knuckle are respectively opened.

6. A streamlined control arm according to claim 5, characterized in that: Between the mounting through hole two (16) and the mounting through hole three (17), a mounting through hole four (18) which is opened on the side vertical surface (12) and used for mounting a shock absorber is provided.

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