Automobile front shock absorber mounting structure

By optimizing the welding lap design of the water channel and reinforcing beam, a closed curved surface structure is formed, which solves the problem of weak local stiffness of the vehicle body caused by the load transmission of the front shock absorber seat, and achieves structural strength improvement and weight reduction, ensuring vehicle body safety.

CN116039309BActive Publication Date: 2026-01-02CHERY AUTOMOBILE CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310081432.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-16
Publication Date
2026-01-02
Estimated Expiration
2043-01-16

AI Technical Summary

Technical Problem

When the load on the front shock absorber mount is transmitted towards the water channel, it weakens the local rigidity of the vehicle body, which can easily cause cracks in the sheet metal and welds of parts such as the water channel, posing a safety hazard.

Method used

Design a front shock absorber mounting structure for automobiles, including a front shock absorber upper connecting bracket, a front shock absorber seat, a water channel, a front wheel arch body, and a shotgun. By welding and overlapping the water channel end plate, water channel body, and water channel reinforcing beam, an overall closed curved surface structure is formed to increase rigidity. Reinforcing ribs and boss structures are set on the water channel body and reinforcing beam to optimize materials and thickness to improve strength.

Benefits of technology

The local stiffness of the front shock absorber mount has been enhanced, ensuring that the structural strength meets the requirements during vehicle operation, preventing cracking in parts such as the water channel, improving the overall stiffness and safety of the vehicle body, and achieving structural lightweighting and cost savings.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116039309B_ABST
    Figure CN116039309B_ABST
Patent Text Reader

Abstract

A kind of automobile front shock absorber mounting structure, including front shock absorber upper connecting support, front shock absorber seat, water flow tank, front wheel cover body and shotgun;Front shock absorber upper connecting support is fixed in the bottom of front shock absorber seat, the top of front shock absorber seat is provided with water flow tank, the lower side of front shock absorber seat is connected to front wheel cover body, the side of front shock absorber seat is connected to shotgun.In the present application, front shock absorber seat is in the form of bowl with opening downward, the side is closed curved surface, the structure is strong in integrity, and the rigidity is big, beneficial to the transmission of load.In the present application, two different height planes are provided on the front shock absorber mounting surface of front shock absorber seat, form step, greatly increase the rigidity in Z direction, reduce the deformation of vehicle body.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automobile, and relates to a front shock absorber mounting structure of an automobile. BACKGROUND

[0002] In order to improve the ride comfort of the automobile, the shock absorber is installed in parallel with the elastic element in the suspension system to suppress the vibration when the spring rebounds after absorbing the shock and the impact from the road surface, and to improve the driving comfort.

[0003] Generally, the front shock absorber of the passenger car is fixed on the front shock absorber seat by three fasteners. When the vehicle is running, the load generated by the impact of the road surface is transmitted to the front water channel, shotgun and front longitudinal beam through the front shock absorber seat. Therefore, the structure near the mounting point of the front shock absorber seat needs to meet certain stiffness and strength requirements. If the front shock absorber mounting structure does not meet the requirements, it is easy to cause the metal sheet and welding point of the water channel, shotgun and other parts to crack, which brings safety hazards. Generally, the thickness of the front water channel is relatively thin, and it is more prone to cracking. The usual practice is to reduce the connection between the water channel and the front shock absorber seat, so that the load is transmitted more from other directions. However, this approach is not conducive to the transmission of the load of the front shock absorber seat to the water channel direction, which weakens the local stiffness and strength of the vehicle body. SUMMARY

[0004] The purpose of the present application is to provide a front shock absorber seat body mounting structure of an automobile to solve the problem of weak local stiffness and strength of the vehicle body when the load of the front shock absorber seat is transmitted to the water channel direction.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] A front shock absorber mounting structure of an automobile, comprising a front shock absorber upper connecting bracket, a front shock absorber seat, a water channel, a front wheel cover body and a shotgun. The front shock absorber upper connecting bracket is fixed on the bottom of the front shock absorber seat. The water channel is arranged above the front shock absorber seat. The front wheel cover body is connected below the front shock absorber seat. The side surface of the front shock absorber seat is connected to the shotgun.

[0007] Further, the water channel comprises a water channel end plate and a water channel body. The water channel end plate is connected to the front shock absorber seat. The water channel end plate and the water channel body are connected together by welding points. The water channel is provided with a water channel reinforcing beam.

[0008] Further, the cross section of the gutter end plate is in a stepped shape, including an end plate first horizontal plane, an end plate second horizontal plane, an end plate third horizontal plane, an end plate first vertical plane and an end plate second vertical plane; the end plate first horizontal plane is a short flange; the end plate second horizontal plane is attached to the upper surface of the shock absorber seat, and is fixedly connected to the upper surface of the shock absorber seat by bolts; the end plate second horizontal plane is provided with three circular holes at the positions corresponding to the bolt mounting holes, and is provided with a through hole in the middle for mounting the front shock absorber upper connecting bracket; the end plate first vertical plane connects the end plate first horizontal plane and the end plate second horizontal plane; the end plate second vertical plane connects the end plate second horizontal plane and the end plate third horizontal plane; as shown in the drawings, the other end of the gutter end plate is connected to the gutter body by welding points.

[0009] Further, the side edges of the end plate second horizontal plane, the side edges of the end plate third horizontal plane, the side edges of the end plate first vertical plane and the side edges of the end plate second vertical plane are provided with flanges, and the flanges are connected by welding points; the end plate third horizontal plane is provided with a long circular drain hole.

[0010] Further, the gutter end plate is connected to the gutter body by welding points, the cross section of the gutter body is consistent with that of the gutter end plate, and is in a stepped shape; the horizontal plane and the vertical plane of the gutter body are both provided with a plurality of reinforcing ribs and square boss structures.

[0011] Further, the gutter body includes a body first horizontal plane, a body second horizontal plane, a body third horizontal plane, a body first vertical plane and a body second vertical plane; the body first horizontal plane, the body first vertical plane, the body second horizontal plane, the body second vertical plane and the body third horizontal plane are sequentially connected.

[0012] Further, the front shock absorber seat is in a bowl-shaped shell structure with an opening downward, including a first side, a second side, a third side, a fourth side and a top surface, and the four sides form a closed curved surface; the first side, the second side and the third side are connected to the front wheel cover body, and the fourth side is connected to the shotgun; the top surface has two first planes and second planes with different heights, forming a step, and the higher first plane is provided with a bolt hole for connecting the front shock absorber upper connecting bracket; the front shock absorber seat is provided with a through hole in the middle for mounting the front shock absorber upper connecting bracket, and the hole is provided with a flange around the hole.

[0013] Further, the cross section of the middle part of the gutter reinforcing beam is in a “z” shape structure rotated counterclockwise °, including a reinforcing beam first vertical plane, a reinforcing beam second vertical plane and a reinforcing beam horizontal plane; the reinforcing beam first vertical plane is attached to the body first vertical plane and connected by welding points; the reinforcing beam second vertical plane is attached to the body second vertical plane and connected by welding points; the body first vertical plane, the body second horizontal plane, the reinforcing beam horizontal plane and the reinforcing beam second vertical plane form a rectangular cavity structure.

[0014] Further, a plurality of reinforcing ribs are arranged on the first vertical surface of the reinforcing beam and the second vertical surface of the reinforcing beam, and a plurality of circular boss structures are arranged on the horizontal surface of the reinforcing beam, so as to strengthen the rigidity.

[0015] Further, the reinforcing beam of the water channel is connected with the end plate of the water channel at two ends, and a turn-up edge is arranged at the overlapping position of the reinforcing beam of the water channel and the second horizontal surface of the end plate, and the turn-up edge has a height difference with the horizontal surface of the reinforcing beam, and the height difference is connected through a slope, and the turn-up edge is connected with the end plate of the water channel through a welding point.

[0016] Compared with the prior art, the present application has the following technical effects:

[0017] In the present application, the front shock absorber seat is in the form of a bowl-shaped structure with an opening downward, and the side surface is a closed curved surface, so that the structural integrity is strong, the rigidity is large, and the load transmission is facilitated.

[0018] In the present application, two planes with different heights are arranged on the front mounting surface of the front shock absorber seat, forming a step, which greatly increases the rigidity in the Z direction and reduces the deformation of the vehicle body.

[0019] In the present application, the cross section of the water channel end plate and the water channel body is in the form of a two-stage stepped structure, the cross section of the water channel reinforcing beam is in the form of a "Z" shape rotated by 90°, the water channel reinforcing beam and the water channel body form a hollow cross section, and the overall bending stiffness of the water channel is significantly improved.

[0020] In the present application, the water channel end plate and the shotgun have four turn-up edges for overlapping, and part of the load transmitted from the water channel is transmitted from the shotgun, which increases the load transmission path and enhances the overall structure.

[0021] In the present application, attention is paid to the design of the cross section and the overlapping, the overall structural strength and rigidity are high, the water channel body and the water channel reinforcing beam are non-main force receiving components, and materials with relatively weak performance and thinner thickness can be selected, so that the purpose of cost saving and lightweight is achieved.

[0022] The present application solves the problem of weak and easy cracking of the front water channel, enhances the local rigidity and strength of the front shock absorber, and ensures that the structural strength meets the requirements during vehicle driving.

[0023] The above-mentioned front shock absorber mounting structure has high universality and is easy to implement. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Front shock absorber mounting structure schematic diagram.

[0025] Figure 2 Front shock absorber seat and front shock absorber upper connecting bracket structure schematic diagram.

[0026] Figure 3 Front shock absorber seat structure schematic diagram.

[0027] Figure 4 Front shock absorber seat sectional view.

[0028] Figure 5 Front shock absorber seat and front wheel cover structure schematic diagram.

[0029] Figure 6 Front shock absorber seat and front water channel structure schematic diagram.

[0030] Figure 7 Water channel end plate structure schematic diagram.

[0031] Figure 8 Water channel end plate sectional view.

[0032] Figure 9 Water channel end plate and water channel body structure schematic diagram.

[0033] Figure 10 Water channel body sectional view.

[0034] Figure 11 Water channel reinforcing beam sectional view.

[0035] Figure 12 Water channel reinforcing beam and water channel body sectional view.

[0036] Figure 13 Water channel reinforcing beam and water channel end plate structure schematic diagram. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" appear only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms such as "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] The purpose of the present application is to provide a front shock absorber body mounting structure with simple structure, high strength and strong versatility, aiming to solve the problem of structural strength caused by vibration and impact during vehicle driving. The technical solution is as follows:

[0041] The specific implementation of the front shock absorber mounting structure is as follows:

[0042] (1) As shown in Figure 1 , the front shock absorber upper connecting bracket 1 is fixed on the bottom of the front shock absorber seat 2 by three bolts. The front shock absorber seat 2 is provided with a water channel end plate 3, a water channel body 4 and a water channel reinforcing beam 5, and is connected to the front wheel cover body 6 below and the shotgun 7 on the left side.

[0043] (2) As shown in Figure 1 , during vehicle driving, the load transmitted from the ground through the front shock absorber is partially transmitted through the front shock absorber seat 2→ the water channel end plate 3→ the water channel body 4, the water channel reinforcing beam 5→ the front baffle, the shotgun, and is partially transmitted through the front shock absorber seat 2→ the front wheel cover body 6→ the front longitudinal beam assembly, and is partially transmitted through the front shock absorber seat 2→ the shotgun 7→ the A-pillar, forming an effective force transmission path.

[0044] (3) As shown in Figure 1 , Figure 9 , the water channel is divided into a water channel end plate 3 and a water channel body 4, the water channel end plate 3 is connected to the front shock absorber seat 2, and a more optimal material and a thicker thickness are adopted. The water channel end plate 3 and the water channel body 4 are connected together by welding points. The water channel is provided with a water channel reinforcing beam 5, which plays a role of bending resistance and strengthening of the water channel.

[0045] (4) In detail, as shown in Figures 2-4 , the front shock absorber seat 2 is in the form of a bowl-shaped shell with an opening downward, and is provided with four side surfaces 21-24 and a top surface 25, the four side surfaces 21-24 form a closed curved surface. As shown in Figure 2 , 3 , 5, three side surfaces 21-23 are connected to the front wheel cover body 6, and the other side surface 24 is connected to the shotgun 7; as shown in Figure 2 , 3 , the front shock absorber seat 2 is connected to the front wheel cover body 6 and the shotgun 7., 4, the top surface 25 has two different levels of plane 26 and 27, forming a step, increase the Z direction stiffness, the higher plane 26 is provided with three small round holes 28~210, the front shock absorber upper connecting bracket 1 is fixed in the round hole 28~210 by bolt; In addition, the front shock absorber seat 1 is provided with a circular large hole 211 in the middle, which provides space for installing the front shock absorber upper connecting bracket 1, and the hole periphery is turned up to increase the stiffness of the circular hole.

[0046] (5) In detail, as shown in Figure 7 , 8 , the cross section of the water channel end plate 3 is ladder-shaped, having three horizontal planes 31~33 and two vertical planes 34, 35. The horizontal plane 31 is a short turned edge for strengthening stiffness. The horizontal plane 32 is in contact with the upper surface of the shock absorber seat 2, and three circular holes 36~38 are provided at the positions corresponding to the bolt mounting holes. A circular large hole 39 is provided in the middle to provide space for installing the front shock absorber upper connecting bracket 1, and a short turned edge 310 is provided on the side. The turned edge is connected to the shotgun 7 through the welding point. A long circular drain hole 311 is provided at the horizontal plane 33, and a turned edge 310 is also provided on the side. The turned edge is connected to the shotgun 7 through the welding point. The vertical plane 34 connects the horizontal planes 31 and 32, and a turned edge 310 is provided on the side. The turned edge is connected to the shotgun 7 through the welding point. The vertical plane 35 connects the horizontal planes 32 and 33, and a short turned edge 310 is provided on the side. The turned edge is connected to the shotgun 7 through the welding point. As shown in Figure 9 , the other end of the water channel end plate 3 is connected to the water channel body 4 through the welding point. As shown in Figure 10 , the cross section of the water channel body 4 is consistent with that of the water channel end plate 3, which is ladder-shaped, having three horizontal planes 41~43 and two vertical planes 44, 45. A plurality of reinforcing ribs 46 and square boss structures 47 are provided on the horizontal and vertical planes to strengthen the local stiffness. The water channel body 4 can be made of materials with weaker performance and thinner thickness to achieve the purpose of cost saving and light weight.

[0047] (6) In detail, as shown in Figure 6 , the water channel reinforcing beam 5 is arranged above the water channel end plate 3 and the water channel body 4. As shown in Figure 11 , the cross section of the middle part of the water channel reinforcing beam 5 is a "z" shape structure rotated 90° counterclockwise, having two vertical planes 51, 52 and a horizontal plane 53. A plurality of reinforcing ribs 54 are provided on the vertical planes 51, 52, and a plurality of circular boss structures 55 are provided on the horizontal plane 53 to strengthen the stiffness. As shown in Figure 12 , the vertical plane 51 is in contact with the vertical plane 44 of the water channel body 4 and is connected through the welding point. The vertical plane 52 is in contact with the vertical plane 45 of the water channel body 4 and is also connected through the welding point. The vertical plane 44 and the horizontal plane of the water channel body 4 and the horizontal plane 53 and the vertical plane 52 of the water channel reinforcing beam 5 form a nearly rectangular cavity structure, which improves the overall stiffness of the water channel.Figure 13 As shown, the gutter reinforcing beam 5 is connected with the gutter end plate 3 at both ends, and the lap joint between the gutter reinforcing beam 5 and the horizontal surface 32 of the gutter end plate 3 is provided with a turn-up, the turn-up and the horizontal surface 53 have a height difference, and the turn-up is connected with the horizontal surface 53 through a slope 57, and the turn-up is connected with the gutter end plate 3 through a welding spot; the two vertical edges 51 and 52 of the gutter reinforcing beam 5 are connected with the two vertical edges 34 and 35 of the gutter end plate 3 through welding spots.

[0048] The front shock absorber mounting structure focuses on the design of the sectional area and the lap joint, has high overall structural strength and rigidity, is highly versatile, solves the problem of weak and easy cracking of the front gutter, and meets the strength and durability requirements.

[0049] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mounting structure for a front shock absorber of an automobile, characterized in that, The application relates to a front shock absorber upper connecting support (1), a front shock absorber seat (2), a water flow groove, a front wheel cover body (6) and a shotgun (7); the front shock absorber upper connecting support (1) is fixed at the bottom of the front shock absorber seat (2), a water flow groove is arranged above the front shock absorber seat (2), the front wheel cover body (6) is connected below the front shock absorber seat (2), and the front shock absorber seat (2) is connected to the shotgun (7) on the side. The water flow groove comprises a water flow groove end plate (3) and a water flow groove body (4), the water flow groove end plate (3) is connected to the front shock absorber seat (2), and the water flow groove end plate (3) and the water flow groove body (4) are connected through welding points; a water flow groove reinforcing beam (5) is arranged on the water flow groove. The water flow groove end plate (3) is in a stepped shape and comprises an end plate first horizontal plane (31), an end plate second horizontal plane (32), an end plate third horizontal plane (33), an end plate first vertical plane (34) and an end plate second vertical plane (35); the end plate first horizontal plane (31) is a short turned edge; the end plate second horizontal plane (32) is attached to the upper surface of the shock absorber seat (2), the end plate second horizontal plane (32) is fixedly connected to the upper surface of the shock absorber seat (2) through bolts, three circular holes are arranged at the positions corresponding to bolt mounting holes of the end plate second horizontal plane (32), and a through hole for mounting the front shock absorber upper connecting support (1) is arranged in the middle; the end plate first vertical plane (34) connects the end plate first horizontal plane (31) and the end plate second horizontal plane (32); the end plate second vertical plane (35) connects the end plate second horizontal plane (32) and the end plate third horizontal plane (33), and the other end of the water flow groove end plate (3) is connected to the water flow groove body (4) through welding points; The water flow groove body (4) comprises a body first horizontal plane (41), a body second horizontal plane (42), a body third horizontal plane (43), a body first vertical plane (44) and a body second vertical plane (45); the body first horizontal plane (41), the body first vertical plane (44), the body second horizontal plane (42), the body second vertical plane (45) and the body third horizontal plane (43) are sequentially connected.

2. The mounting structure for a front shock absorber of an automobile according to claim 1, wherein The side edges of the end plate second horizontal plane (32), the side edges of the end plate third horizontal plane (33), the side edges of the end plate first vertical plane (34) and the side edges of the end plate second vertical plane (35) are provided with turned edges (310), and the turned edges (310) are connected to the shotgun (7) through welding points; a long circular drain hole (311) is arranged at the end plate third horizontal plane (33).

3. The mounting structure for a front shock absorber of a vehicle according to claim 2, wherein The water flow groove end plate (3) is connected to the water flow groove body (4) through welding points, the cross section of the water flow groove body (4) is consistent with that of the water flow groove end plate (3), is in a stepped shape, and a plurality of reinforcing ribs (46) and square boss structures (47) are arranged on the horizontal planes and vertical planes of the water flow groove body (4).

4. The mounting structure for a front shock absorber of a vehicle according to claim 1, wherein The front shock absorber seat (2) is an open downward bowl-shaped shell structure, including a first side (21), a second side (22), a third side (23), a fourth side (24) and a top surface (25), and the four sides form a closed curved surface; the first side (21), the second side (22) and the third side (23) are connected with the front wheel cover body (6), and the fourth side (24) is connected with the shotgun (7); the top surface (25) has two different heights of the first plane (26) and the second plane (27), forming a step, and the high first plane (26) is provided with a bolt hole for connecting the front shock absorber upper connecting bracket (1); the front shock absorber seat (2) is provided with a through hole for mounting the front shock absorber upper connecting bracket (1) in the middle, and the hole periphery is turned up.

5. The mounting structure for a front shock absorber of a vehicle according to claim 1, wherein The section of the middle part of the water channel reinforcing beam (5) is a "z" shaped structure rotated counterclockwise by 90°, including a reinforcing beam first vertical surface (51), a reinforcing beam second vertical surface (52) and a reinforcing beam horizontal surface (53); the reinforcing beam first vertical surface (51) is attached to the body first vertical surface (44) and connected through a welding point, and the reinforcing beam second vertical surface (52) is attached to the body second vertical surface (45) and connected through a welding point; the body first vertical surface (44), the body second horizontal surface (42) and the reinforcing beam horizontal surface (53) and the reinforcing beam second vertical surface (52) form a rectangular cavity structure.

6. The mounting structure for a front shock absorber of a vehicle according to claim 5, wherein A plurality of reinforcing ribs (54) are arranged on the reinforcing beam first vertical surface (51) and the reinforcing beam second vertical surface (52), and a plurality of circular bosses (55) are arranged on the reinforcing beam horizontal surface (53) to enhance the rigidity.

7. The mounting structure for a front shock absorber of a vehicle according to claim 6, wherein The two ends of the water channel reinforcing beam (5) are connected with the water channel end plate (3), the water channel reinforcing beam (5) and the end plate second horizontal surface (32) are overlapped at the turn-up edge, the turn-up edge and the reinforcing beam horizontal surface (53) have a height difference, the height difference is connected through a slope (57), and the turn-up edge is connected with the water channel end plate (3) through a welding point; the reinforcing beam first vertical surface (51) and the reinforcing beam second vertical surface (52) are connected with the end plate first vertical surface (34) and the end plate second vertical surface (35) through a welding point.

Citation Information

Patent Citations

  • Hydraulic variable-cross-section closed torsion beam

    CN109572349A

  • Front shock absorber installation reinforcing structure and automobile

    CN203402244U