Automobile control arm and automobile

Abstract

The present invention relates to a control arm for automobile and an automobile. The control arm comprises a mounting plate and a reinforcement plate. The mounting plate comprises a fitting surface. A plurality of filling holes are formed on the mounting plate, and the filling holes penetrate the thickness of the mounting plate. The reinforcement plate is injection molded on the fitting surface of the mounting plate. After the reinforcement plate is injection molded, an anti-detachment buckle is formed on the reinforcement plate. The anti-detachment buckle comprises a filling portion for filling the filling hole and a limiting portion extending along the end edge of the filling portion. The limiting portion is used to clamp the mounting plate between the two together with the reinforcement plate to prevent the mounting plate and the reinforcement plate from being separated from each other. The present invention reduces the overall mass of the control arm to reduce the unsprung mass of the entire vehicle and improve the handling performance of the entire vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to a control arm for an automobile and an automobile. Background Art

[0002] As an important part of the chassis, the automobile control arm is used to connect the subframe and the steering knuckle, and is the guide and force transmission part of the suspension system. During the driving process of the vehicle, various forces on the wheel are transmitted to the body, while ensuring that the wheel moves along a certain trajectory. It connects the wheel and the suspension elastically through the ball head and bushing. In the actual application process, the working conditions are complex and sufficient stiffness, strength and fatigue resistance are required to ensure the normal driving of the vehicle.

[0003] However, the current traditional control arms are heavy, resulting in a large unsprung mass of the vehicle, which affects the handling performance of the vehicle. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the control arm in the prior art has a heavy mass, which affects the unsprung mass and the handling performance of the whole vehicle.

[0005] In order to solve the above technical problems, the present invention discloses a control arm for a vehicle and a vehicle.

[0006] According to one aspect of the present application, a control arm for an automobile is disclosed, comprising:

[0007] A mounting plate, the mounting plate comprising a fitting surface, the mounting plate being provided with a plurality of filling holes, the filling holes penetrating through the thickness of the mounting plate;

[0008] A reinforcing plate, the reinforcing plate is injection molded on the fitting surface of the mounting plate, after the reinforcing plate is injection molded, an anti-detachment buckle is formed on the reinforcing plate, the anti-detachment buckle comprises a filling portion for filling the filling hole and a limiting portion extending along the end edge of the filling portion, the limiting portion is used to clamp the mounting plate therebetween together with the reinforcing plate to prevent the mounting plate and the reinforcing plate from detaching from each other.

[0009] In a possible implementation, the limiting portion is configured as a convex edge extending from an end edge of the filling portion.

[0010] Furthermore, a mounting flange is formed on the edge of the mounting plate, and the mounting flange extends in a direction away from the mounting plate along the thickness direction of the mounting plate;

[0011] A reinforcing flange is formed on the edge of the reinforcing plate, and the reinforcing flange extends along the thickness direction of the reinforcing plate in a direction away from the reinforcing plate. A plurality of anti-slip devices are injection-molded on the reinforcing flange, and the anti-slip devices cooperate with the mounting flange to prevent the mounting plate and the reinforcing plate from detaching from each other.

[0012] In one possible implementation, a plurality of mounting holes are penetrated through the mounting flange, and the anti-slip device includes an anti-slip claw and a filling protrusion, the anti-slip claw is formed at the edge of the reinforced flange, the anti-slip claw and the reinforced flange are arranged opposite to each other, a gap for embedding the mounting flange is formed between the anti-slip claw and the reinforced flange, and the filling protrusion is formed on the side of the anti-slip claw and filled in the mounting hole.

[0013] In one possible implementation, a plurality of mounting holes are passed through the mounting flange, the anti-slip device is formed on the side of the reinforcing flange, the anti-slip device includes an anti-slip column and a limiting convex edge, and the limiting convex edge is formed on the anti-slip column and extends out of the mounting hole.

[0014] Furthermore, the reinforcing plate further comprises a reinforcing surface, the reinforcing surface and the reinforcing plate are arranged opposite to each other on one side of the mounting plate, and a plurality of reinforcing ribs are formed on the reinforcing surface.

[0015] Furthermore, a first mounting bushing and a second mounting bushing are formed on the mounting plate, and the reinforcing plate is injection molded with a first reinforcing bushing sleeved on the outside of the first mounting bushing and a second reinforcing bushing sleeved on the outside of the second mounting bushing, and the thickness of the first mounting bushing and the second mounting bushing are both greater than 4 mm, and the thickness of the first reinforcing bushing and the second reinforcing bushing are both greater than 4 mm.

[0016] Furthermore, the control arm is made of composite material.

[0017] In a possible implementation, the mounting plate is an aluminum alloy die-cast structure, and the reinforcing plate is a PA66 engineering plastic injection-molded structure.

[0018] According to another aspect of the present application, a vehicle is also disclosed, and the vehicle includes the above-mentioned vehicle control arm.

[0019] The automobile control arm of the present invention comprises a mounting plate and a reinforcing plate, wherein the mounting plate comprises a fitting surface, a plurality of filling holes are provided on the mounting plate, and the filling holes penetrate the thickness of the mounting plate; and a reinforcing plate, wherein the reinforcing plate is injection molded on the fitting surface of the mounting plate, and after the reinforcing plate is injection molded, an anti-detachment buckle is formed on the reinforcing plate, and the anti-detachment buckle comprises a filling portion for filling the filling holes and a limiting portion extending along the end edge of the filling portion, and the limiting portion is used to clamp the mounting plate between the two together with the reinforcing plate to prevent the mounting plate and the reinforcing plate from being separated from each other. The reinforcing plate of the present invention is injection molded, and the injection molding material is relatively light, which can reduce the overall mass of the control arm, and after injection molding, an anti-detachment buckle for filling the filling holes of the mounting plate and preventing the mounting plate and the reinforcing plate from being separated from each other can be formed on the reinforcing plate, thereby improving the firmness of the control arm. The present invention can reduce the unsprung mass of the whole vehicle by reducing the overall mass of the control arm, thereby improving the handling performance of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of an angle of the automobile control arm of the present invention;

[0022] Figure 2 is a structural schematic diagram of the automobile control arm of the present invention from another angle;

[0023] Figure 3 It is a structural schematic diagram of an angle of the mounting plate of the present invention;

[0024] Figure 4 is a schematic structural diagram of the mounting plate of the present invention from another angle;

[0025] Figure 5 is a schematic structural diagram of the reinforcement plate of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the filling buckle of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the filling device of the present invention;

[0028] In the figure, 1-mounting plate, 11-filling hole, 12-mounting flange, 13-mounting hole, 14-first mounting bushing, 15-second mounting bushing, 2-reinforcement plate, 21-anti-drop buckle, 211-filling part, 212-limiting part, 22-reinforcement flange, 23-anti-drop device, 231-anti-drop claw, 232-filling protrusion, 24-reinforcement rib, 25-first reinforced bushing, 26-second reinforced bushing. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0031] Specifically, it is a schematic diagram of the structure of the current transmission control arm for automobiles, which includes a front bushing connected to the subframe, an intermediate bushing, and an intermediate mounting sleeve connected to the main body by welding, and connected to the steering knuckle ball head. Its main body and reinforcement plate are stamped out of SCM440 single-layer steel plate, and the welding process is used to achieve the welding between the main body and the reinforcement plate, and the overall weight is heavy. As a result, the unsprung mass of the entire vehicle is heavy, affecting the handling performance. Therefore, in order to solve the problem in the prior art that the control arm for automobiles is heavy, resulting in a heavy unsprung mass of the entire vehicle and affecting the handling performance of the entire vehicle, the present invention provides a method such as Figures 1 to 4 The automotive control arm shown.

[0032] Specifically, Figures 1 to 4 As shown, the control arm for automobile includes:

[0033] A mounting plate 1, the mounting plate 1 comprising a fitting surface, a plurality of filling holes 11 being formed on the mounting plate 1, the filling holes 11 penetrating the thickness of the mounting plate 1;

[0034] Further, such as Figures 5 to 7 As shown, it also includes a reinforcing plate 2, which is injection molded on the fitting surface of the mounting plate 1. After the reinforcing plate 2 is injection molded, an anti-detachment buckle 21 is formed on the reinforcing plate 2. The anti-detachment buckle 21 includes a filling portion 211 for filling the filling hole 11 and a limiting portion 212 extending along the end edge of the filling portion 211. The limiting portion 212 is used to clamp the mounting plate 1 therebetween together with the reinforcing plate 2 to prevent the mounting plate 1 and the reinforcing plate 2 from detaching from each other.

[0035] Specifically, by injection molding the reinforcing plate 2, the injection molding material is lighter than the steel control arm in the prior art, and the overall mass of the control arm can be reduced; and after the reinforcing plate 2 is injection molded, the injection molded reinforcing plate 2 can form a filling hole 11 for filling the mounting plate 1 and an anti-detachment buckle 21 that can prevent the mounting plate 1 and the reinforcing plate 2 from being separated from each other, thereby improving the firmness of the control arm. Furthermore, the present invention reduces the overall mass of the control arm to reduce the unsprung mass of the entire vehicle and improve the handling performance of the entire vehicle.

[0036] In a possible implementation, as shown in the figure, the limiting portion 212 is constructed as a convex edge extending from the end edge of the filling portion 211. Specifically, a gap is formed between the convex edge and the reinforcing plate 2 to clamp the mounting plate 1 between the convex edge and the reinforcing plate 2, and the convex edge is formed at the edge of the filling portion 211, and the distance between the edge line of the convex edge and the axis of the filling hole 11 is greater than the diameter of the filling hole 11, so that the convex edge can effectively prevent the anti-detachment buckle 21 filled in the filling hole 11 from detaching from the filling hole 11, and then prevent the mounting plate 1 and the reinforcing plate 2 from detaching from each other. Specifically, the filling hole 11 on the mounting plate 1 can be circular, rectangular or triangular, and the filling portion 211 of the anti-detachment buckle 21 matches the shape of the filling hole 11. Preferably, in this embodiment, the filling hole 11 on the mounting plate 1 can be circular, and at this time, the convex edge extends from the end edge of the filling portion 211 in the radial direction.

[0037] It is understandable that the configuration of the limiting portion 212 as a convex edge formed from the end edge of the filling portion 211 is only a preferred embodiment. In other feasible solutions, the limiting portion 212 can also be configured as a baffle or a baffle rod protruding from the end of the filling portion 211 to prevent the filling portion 211 from escaping from the filling hole 11. Specifically, the limiting portion 212 is only a preferred solution as the above structure. In other feasible solutions, it can also be other structures, as long as it can prevent the filling portion 211 from escaping from the filling hole 11, and the specific structure shape is not limited.

[0038] Furthermore, the number of filling holes 11 can be 3 to 12, for example, 5, 7, 8, etc. The specific number can be determined based on the mechanical analysis of the control arm by software. For example, in this embodiment, based on the control arm with the structure shown in the figure, the number of filling holes 11 is 7.

[0039] In a possible implementation, the diameter of the filling hole 11 may be 5 mm to 15 mm, for example, 10 mm, 12 mm or 13 mm. The specific diameter may be set according to actual needs and is not specifically limited here.

[0040] Furthermore, a mounting flange 12 is formed on the edge of the mounting plate 1, and the mounting flange 12 extends in a thickness direction of the mounting plate 1 in a direction away from the mounting plate 1;

[0041] A reinforcing flange 22 is formed on the edge of the reinforcing plate 2, and the reinforcing flange 22 extends along the thickness direction of the reinforcing plate 2 in a direction away from the reinforcing plate 2. A plurality of anti-slip devices 23 are injection-molded on the reinforcing flange 22, and the anti-slip devices 23 cooperate with the mounting flange 12 to prevent the mounting plate 1 and the reinforcing plate 2 from detaching from each other.

[0042] Specifically, after the reinforcing plate 2 is formed by injection molding on the fitting surface of the mounting plate 1, the reinforcing flange 22 of the reinforcing plate 2 is also fitted on the mounting flange 12 of the mounting plate 1, and after injection molding, an anti-slip device 23 can be formed by injection molding on the reinforcing flange 22, so that the reinforcing plate 2 prevents the mounting plate 1 and the reinforcing plate 2 from being separated from each other after the anti-slip device 23 cooperates with the mounting flange 12, further improving the firmness and stability of the control arm. Exemplarily, the extension height of the flange can be 15mm-40mm, for example, it can be 25mm or 27mm, etc. The specific extension height can be set according to actual needs and is not limited here.

[0043] In a possible implementation, as shown in the figure, the mounting flange 12 is penetrated with a plurality of mounting holes 13, the anti-slip device 23 may include an anti-slip claw 231 and a filling protrusion 232, the anti-slip claw 231 is formed at the edge of the reinforcing flange 22, the anti-slip claw 231 is arranged opposite to the reinforcing flange 22, a gap for embedding the mounting flange 12 is formed between the anti-slip claw 231 and the reinforcing flange 22, the filling protrusion 232 is formed on the side of the anti-slip claw 231, and is filled in the mounting hole 13. Then, the anti-slip claw 231 is used to limit the filling protrusion 232 from detaching from the mounting hole 13, and then the anti-slip claw 231 in the anti-slip device 23 is used to clamp the mounting plate 1 between the anti-slip claw 231 and the reinforcing plate 2, so as to limit the mutual detachment between the mounting plate 1 and the reinforcing plate 2, and further improve the firmness and stability of the control arm.

[0044] In another possible implementation, the mounting flange 12 is penetrated with a plurality of mounting holes 13, the anti-slip device 23 is formed on the side of the reinforcing flange 22, and the anti-slip device 23 may include an anti-slip clamping column and a limiting convex edge, the limiting convex edge being formed on the anti-slip clamping column and extending out of the mounting hole 13. Then, the anti-slip clamping column is separated from the mounting hole 13 by the limiting convex edge, and then the mounting plate 1 is clamped between the limiting convex edge and the reinforcing plate 2 by the limiting convex edge, so as to limit the separation between the mounting plate 1 and the reinforcing plate 2, and further improve the firmness and stability of the control arm.

[0045] It can be understood that the anti-slip claw 231 or the limiting convex edge on the anti-slip device 23 clamps the mounting plate 1 between the anti-slip claw 231 and the reinforcing plate 2, or clamps the mounting plate 1 between the limiting edge and the reinforcing plate 2, which is only a preferred implementation scheme. In other feasible schemes, the anti-slip device 23 can also be designed into other structural forms, as long as the mutual separation between the mounting plate 1 and the reinforcing plate 2 can be restricted.

[0046] Furthermore, the reinforcing plate 2 further includes a reinforcing surface, which is arranged opposite to one side of the mounting plate 1 and is fitted with the reinforcing plate 2, and a plurality of reinforcing ribs 24 are formed on the reinforcing surface. Exemplarily, as shown in the figure, the reinforcing ribs 24 are constructed as a two-by-two cross structure. It can be understood that by constructing the reinforcing ribs 24 as a two-by-two cross structure, a triangle with stable performance can be formed between the reinforcing ribs 24, thereby improving the stability of the reinforcing ribs 24 and further improving the rigidity of the reinforcing plate 2. Thereby, the overall rigidity of the control arm is improved.

[0047] Furthermore, the mounting plate 1 is formed with a first mounting bushing 14 and a second mounting bushing 15, and the reinforcing plate 2 is injection molded with a first reinforcing bushing 25 sleeved on the outside of the first mounting bushing 14 and a second reinforcing bushing 26 sleeved on the outside of the second mounting bushing 15, the thickness of the first mounting bushing 14 and the second mounting bushing are both greater than 4 mm, and the thickness of the first reinforcing bushing 25 and the second reinforcing bushing 26 are both greater than 4 mm. By setting the thickness of the first reinforcing bushing 25 and the second reinforcing bushing 26 to be greater than 4 mm, the strength of the first reinforcing bushing 25 and the second reinforcing bushing 26 can be improved. In addition, since the reinforcing plate 2 is injection molded, the final injection molding thickness of the first reinforcing bushing 25 and the second reinforcing bushing 26 can be determined based on actual needs, thereby improving the adjustability of the overall strength of the control arm.

[0048] Furthermore, the control arm is made of composite material.

[0049] In a possible implementation, the mounting plate 1 is an aluminum alloy die-casting structure, and the reinforcing plate 2 is a PA66 engineering plastic injection molding structure. It is understandable that the mounting plate 1 can be formed by aluminum alloy die-casting first, and then the die-cast mounting plate 1 is placed in the injection mold of the water control arm, and the reinforcing plate 2 is formed by injection molding based on the PA engineering material. In the process of injection molding the reinforcing plate 2, the above-mentioned anti-slip buckle 21 and / or anti-slip device 23 are injection molded on the reinforcing plate 2 to improve the firmness and stability of the control arm. And the control arm is formed by the composite of aluminum alloy and PA66 engineering plastic. Since the weight of aluminum alloy and PA66 engineering materials are both light, the control arm is formed by composite injection molding of the two materials, which can reduce the overall weight of the control arm. Exemplarily, in some preferred schemes, the mounting plate 1 is formed by an aluminum alloy die-casting structure, and the reinforcing plate 2 is formed by injection molding of PA66 engineering plastic. The quality of the control arm finally formed can be about 20% to 40% stronger than that of the current traditional steel control arm, thereby effectively reducing the unsprung mass and improving the handling performance of the whole vehicle.

[0050] According to another aspect of the present application, a vehicle is also disclosed, and the vehicle includes the above-mentioned vehicle control arm.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control arm for an automobile, characterized in that: include: A mounting plate (1), the mounting plate (1) comprising a fitting surface, a plurality of filling holes (11) being provided on the mounting plate (1), the filling holes (11) penetrating the thickness of the mounting plate (1); a mounting flange (12) being formed on an edge of the mounting plate (1), the mounting flange (12) extending in a direction away from the mounting plate (1) along the thickness direction of the mounting plate (1); A reinforcing plate (2), the reinforcing plate (2) being injection-molded on the mating surface of the mounting plate (1), after the reinforcing plate (2) is injection-molded, an anti-detachment buckle (21) is formed on the reinforcing plate (2), the anti-detachment buckle (21) comprising a filling portion (211) for filling the filling hole (11) and a limiting portion (212) extending along the end edge of the filling portion (211), the limiting portion (212) being used to clamp the mounting plate (1) therebetween together with the reinforcing plate (2) to prevent the mounting plate (1) and the reinforcing plate (2) from detaching from each other; a reinforcing flange (22) is formed on the edge of the reinforcing plate (2), the reinforcing flange (22) extending in a direction away from the reinforcing plate (2) along the thickness direction of the reinforcing plate (2), a plurality of anti-detachment devices (23) are injection-molded on the reinforcing flange (22), the anti-detachment devices (23) being connected to the mounting flange (12) cooperate to prevent the mounting plate (1) and the reinforcing plate (2) from being separated from each other; the mounting flange (12) is penetrated by a plurality of mounting holes (13); the anti-separation device (23) comprises an anti-separation claw (231) and a filling protrusion (232); the anti-separation claw (231) is formed on the edge of the reinforcing flange (22); the anti-separation claw (231) is arranged opposite to the reinforcing flange (22); the anti-separation claw (231) A gap is formed between the reinforcing flange (22) for embedding the mounting flange (12); the filling protrusion (232) is formed on the side of the anti-slip claw (231) and fills the mounting hole (13); the anti-slip device (23) is formed on the side of the reinforcing flange (22), and the anti-slip device (23) comprises an anti-slip column and a limiting convex edge, and the limiting convex edge is formed on the anti-slip column and extends out of the mounting hole (13).

2. The automotive control arm according to claim 1, characterized in that: The limiting portion (212) is configured as a convex edge extending from the end edge of the filling portion (211).

3. The control arm for automobile according to claim 1, characterized in that: The reinforcing plate (2) further comprises a reinforcing surface, the reinforcing surface and the reinforcing plate (2) being arranged opposite to each other on one side of the mounting plate (1), and a plurality of reinforcing ribs (24) being formed on the reinforcing surface.

4. The control arm for automobile according to claim 1, characterized in that: The mounting plate (1) is formed with a first mounting bushing (14) and a second mounting bushing (15); the reinforcing plate (2) is injection molded with a first reinforcing bushing (25) sleeved on the outside of the first mounting bushing (14) and a second reinforcing bushing (26) sleeved on the outside of the second mounting bushing (15); the thickness of the first mounting bushing (14) and the second mounting bushing are both greater than 4 mm; the thickness of the first reinforcing bushing (25) and the second reinforcing bushing (26) are both greater than 4 mm.

5. The automotive control arm according to claim 1, characterized in that: The control arm is formed based on a composite material.

6. The control arm for automobile according to claim 5, characterized in that: The mounting plate (1) is an aluminum alloy die-casting structure, and the reinforcing plate (2) is a PA66 engineering plastic injection molding structure.

7. A car, characterized in that: The automobile comprises the automobile control arm according to any one of claims 1 to 6.

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