CN115946487A - Vehicle structure and suspension installation component and shock absorber thereof - Google Patents

Abstract

Embodiments of the present application provide a vehicle structure, a suspension mounting assembly thereof, and a shock absorber tower. The suspension mounting assembly is suitable for installation between the main frame and the subframe of the vehicle structure, and is compatible with suspensions of different specifications. The suspension mounting assembly includes a shock tower and a lower control arm, wherein the shock tower includes a body and a first mounting portion and a second mounting portion having a height difference on the body. Suspensions with different specifications can be installed between the first installation part and the lower control arm, or between the second installation part and the lower control arm. Therefore, in the embodiment of the present application, through the arrangement of the suspension mounting components, in the suspension assembly procedure of the vehicle structure, the main frame and the sub-frame can be shared, greatly reducing the development cost.

Description

Vehicle structure and its suspension mounting components and shock towers

technical field

The present application relates to the field of automobile suspension systems, in particular to a vehicle structure and its suspension mounting assembly and shock absorber tower.

Background technique

The suspension system is one of the key systems in a vehicle, responsible for multiple functions such as support, shock absorption and steering. The front suspension types include MacPherson suspension and double wishbone suspension, while the rear suspension types include torsion beam, three-link, four-link, five-link suspension, etc. Moreover, different types of suspensions have huge differences in structure, performance, cost, and weight. As a result, different vehicle positioning often requires the development of different vehicle structures or body structures to match different suspension types. In the past, the design of the suspension was complicated and there were many restrictions. For example, the structure of the McPherson suspension and the double-wishbone suspension were quite different. Often, only one suspension structure could be used under the same vehicle structure or body structure. Therefore, car dealers can only develop two sets of architecture or body structure to distinguish the positioning of different models.

Contents of the invention

Aspects of the present application provide a vehicle structure and its suspension mounting assembly and shock absorber, through which the shock absorber and the lower control arm can be shared to solve the problem that the vehicle body structure cannot share two types of suspension.

An embodiment of the present application provides a vehicle structure, including a main frame, a sub frame, and a suspension installation assembly. The suspension mounting assembly includes a shock tower and a lower control arm. Wherein, the shock tower includes a body, a first installation part and a second installation part, and the first installation part and the second installation part are respectively arranged on two opposite sides of the body along the length direction of the body , and there is a height difference between the first installation part and the second installation part in the thickness direction of the body. One end of the lower control arm is pivotally connected to the sub-frame and corresponds to the second mounting portion, and the other end of the lower control arm corresponds to the first mounting portion and is provided with a ball stud. A suspension of a first specification is suitable for installation between the first installation part and the ball stud, and a suspension of a second specification is suitable for installation between the second installation part and the ball stud.

In some embodiments, the first mounting portion and the second mounting portion are respectively recessed relative to the bottom surface of the body to form a first assembly groove and a second assembly groove facing the ball stud, the The depth of the first assembly groove is greater than the depth of the second assembly groove, forming the height difference.

In some embodiments, the tops of the first mounting portion and the second mounting portion respectively protrude from the top surface of the body, wherein on the top surface, the height of the first mounting portion is greater than the The height of the second installation part forms the height difference, and the bottoms of the first installation part and the second installation part and the corresponding tops are surrounded by flanges.

In some embodiments, the lower control arm is further provided with a first connecting portion and a second connecting portion. The first connecting portion is used to pivotally connect to the sub-frame, and the second connecting portion is interposed between the first connecting portion and the ball stud, and is used to pivotally connect the suspension of the second specification. The shock absorber for the frame.

In some embodiments, the lower control arm includes a pair of a first arm and a second arm, and two ball studs are horizontally arranged on the lower control arm, and the first arm pivots Connected to one of the ball studs, the second arm is pivotally connected to the other ball stud.

The embodiment of the present application also provides a suspension mounting assembly, which is suitable for being installed between a main frame and a subframe of a vehicle structure, and is compatible with suspensions of different specifications. The suspension mount assembly includes a shock tower and a lower control arm. The shock tower includes a body, a first installation part and a second installation part. The first installation part and the second installation part are respectively arranged on two opposite sides of the body along the length direction of the body, and between the first installation part and the second installation part is the There is a height difference in the thickness direction of the body. One end of the lower control arm is pivotally connected to the auxiliary frame and corresponds to the second mounting portion. The other end of the lower control arm corresponds to the first mounting portion, and is provided with a ball stud. A suspension of a first specification is suitable for installation between the first installation part and the ball stud, and a suspension of a second specification is suitable for installation between the second installation part and the ball stud.

The embodiment of the present application also provides a shock absorber, including a body, a first installation part and a second installation part, the first installation part and the second installation part are respectively arranged on the Two opposite sides of the main body, and there is a height difference between the first installation part and the second installation part in the thickness direction of the main body.

In the embodiment of the present application, a shared main frame and sub-frame are provided through the ladder-style configuration of shock absorbers with different heights. When the same main frame needs to be applied to vehicles with different performances, only It is necessary to install the suspension with corresponding performance on the first installation part or the second installation part, and connect the lower control arm, so that different suspensions can be applied without changing the structure of the main frame and the sub-frame can be used to realize the The common use of the frame and sub-frame greatly reduces the development cost.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

FIG. 1 is a perspective view of a vehicle frame platform according to an embodiment of the present application.

FIG. 2 is a perspective view of a first specification suspension installed on the suspension assembly according to the embodiment of the present application.

Fig. 3 is a side view of the first specification suspension installed on the suspension assembly according to the embodiment of the present application.

Fig. 4 is a side view of the second specification suspension installed on the suspension assembly of the embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Referring to FIG. 1 to FIG. 3 , the vehicle structure 1 of the embodiment of the present application includes a main frame 10 , a sub-frame 20 and a suspension installation assembly 30 . The main frame 10 is the main structure of the automobile body, used to support and connect the various assemblies of the automobile, so that each assembly can be assembled in a relative position and bear the internal and external loads of the automobile. The sub-frame 20 is a structure that connects and supports the vehicle power system, wire harness and suspension system, for example, the suspension and the main frame are connected by fasteners to play the role of bearing and vibration isolation. Suspension mounting assembly 30 is respectively arranged on the main frame 10 and the sub-frame 20, and is used for the suspension with shock absorber to be connected between the main frame 10 and the sub-frame 20, so as to reduce the impact of road vibration on the vehicle body. The impact brought by it makes the driving process have better comfort and stability. The suspension assembly 30 includes a shock absorber 31 and a lower control arm 32, wherein the shock absorber 31 is arranged on the main frame 10, the lower control arm 32 is arranged on the subframe, and the shock absorber 31 and the lower control arm 32 A space is formed between which can accommodate the assembly of the suspension.

The shock tower 31 includes a first installation part 311 , a second installation part 312 and a body 313 . The first mounting portion 311 and the second mounting portion 312 can be integrally formed on the body 313 , or assembled from individual components, for example, welded to the body 313 . Wherein, the first installation portion 311 and the second installation portion 312 are respectively disposed on two opposite sides of the body 313 along the length direction of the body 313 , and have a height difference in the thickness direction of the body 313 . For the convenience of description, in this embodiment, the length direction of the body 313 may be but not limited to the horizontal axis, and the thickness direction of the body 313 may be the vertical axis based on the horizontal axis. For example, in a three-dimensional coordinate system, the length direction of the body 313 may be the x-axis or the y-axis, and the thickness direction may be the z-axis. In addition, it can be understood that, in some embodiments of the present application, the length direction and the thickness direction of the body 313 may have an inclination angle instead of being arranged perpendicular to each other.

In some embodiments of the present application, at the same horizontal position, the heights of the first mounting part 311 and the second mounting part 312 on opposite sides of the main body 313 are different to form a height difference, which may be formed by the first mounting part 311 The top of the top and the top of the second mounting part 312 protrude on the top surface 3131 of the body 313 with different heights; 3132, and formed with different recessed depths; or formed by dislocation arrangement of the whole of the first installation part 311 and the whole of the second installation part 312 in the horizontal position, so that the appearance of the shock tower 31 is a A stepped structure with one side high and the other low.

In one of the embodiments of the present application, the top of the first installation part 311 and the top of the second installation part 312 respectively protrude from the top surface 3131 of the body 313, so that the gap between the first installation part 311 and the second installation part 312 A height difference is formed on the top surface 3131 of the body 313, wherein the top of the first installation part 311 has a first height relative to the top surface 3131 of the body 313, and the top of the second installation part 312 has a first height relative to the top surface 3131 of the body 313. Two heights, and the second height is smaller than the first height, so that the second installation part 312 is lower than the first installation part 311 or slightly shorter than the first installation part 311 on the top surface 3131 of the body 313 .

In another embodiment of the present application, the bottom of the first installation part 311 and the bottom of the second installation part 312 are respectively recessed from the bottom surface 3132 of the body 313, and the bottom surface 3132 of the body 313 forms a first assembly groove S1 and a second assembly groove S1. Two assembly slots S2 (as shown in Figure 3 and Figure 4). In this embodiment, the first assembling groove S1 and the second assembling groove S2 have different depths, for example, the depth of the first assembling groove S1 is greater than that of the second assembling groove S2, and a height difference is formed on opposite sides of the body.

As shown in Figure 1 to Figure 4. In an embodiment of the present application, the top of the first installation part 311 and the top of the second installation part 312 respectively protrude from the top surface 3131 of the body 313 on the side opposite to the top surface 3131 of the body 313, and the first installation The top of the part 311 is higher than the top of the second mounting part 312 to form a height difference. At the same time, the bottom of the first mounting part 311 and the bottom of the second mounting part 312 are respectively recessed in the direction relative to the bottom surface 3132 of the body 313 toward the top, thereby forming first assembly grooves S1 on the bottom surface of the body 313 respectively. and the second assembly groove S2, and the depth of the first assembly groove S1 is greater than the depth of the second assembly groove S2 to form a height difference. In this embodiment, a flange 314 surrounding the outer periphery of the first assembly groove S1 is formed between the top and bottom of the first mounting part 311, and a flange 314 surrounding the second assembly groove S1 is formed between the top and bottom of the second mounting part 312. The flange 314 around the outer periphery of S2 enables the first mounting portion 311 and the second mounting portion 312 to form a cover-like structure on the main body 313 , thereby improving the structural strength and rigidity of the shock absorber 31 .

In addition, since the height of the first mounting part 311 on the body 313 is relatively higher than the height of the second mounting part 312 on the body 313, the first mounting part 311 is suitable for being arranged near the outer side of the main frame 10 and adjacent to the wheels in assembly. position, and the second mounting part 311 extends from the first mounting part 311 to the direction away from the wheel, so that the shock tower 31 can adjust the mounting position and angle of suspensions of different specifications with a similar stepped structure. For example, through the design of the position difference and height difference between the first installation part 311 and the second installation part 312, the suspension 71 of the first specification can be installed between the first installation part 311 and the lower control arm 32, while the second installation part 312 and the lower control arm 32 can be used to install the second specification suspension 72 .

Referring to FIGS. 1 to 4 , the lower control arm 32 of the suspension mounting assembly 30 includes a ball stud 321 and a first connecting portion 322 . The ball stud 321 and the first connecting portion 322 are respectively provided at both ends of the lower control arm 32 , wherein the first connecting portion 322 is used to pivotally connect to the sub-frame 20 , and the ball stud 321 is used to pivotally connect to the steering of the suspension. Festival. It can be understood that, in some embodiments of the present application, according to different suspension structures to be assembled, a second connecting portion 323 may also be provided between the ball stud 321 of the lower control arm 32 and the first connecting portion 322 . In some embodiments of the present application, both the first connecting portion 322 and the second connecting portion 323 of the lower control arm 32 are designed as bushes, but not limited thereto. The first connection part 322 includes two bushes, respectively connected to the corresponding ports of the sub-frame 20 , and the second connection part 323 is a single bush, used for connecting the end of the shock absorber 722 of the suspension 72 of the second specification. It is worth noting that the design of the ball stud 321 and the bushing of the lower control arm 32 can connect suspensions of different specifications to the same sub-frame 20, so that the lower control arm 32 and the sub-frame 20 can be provided with different specifications. The purpose of suspension sharing.

In the application of the suspension mounting assembly 30 of the embodiment of the present application, the shock tower 31 is fixed on the main frame 10 and suspended above the lower control arm 32 . At this time, through the arrangement of the height difference between the first installation part 311 and the second installation part 312 of the shock absorber 31, a first installation space is formed between the first installation part 311 and the lower control arm 32 for Assemble the suspension 71 of the first specification; and form a second installation space between the second installation portion 312 of the shock tower 31 and the lower control arm 32 for assembling the suspension 72 of the second specification. Among them, the suspensions of different specifications can be different types of suspensions, such as McPherson suspensions and double wishbone suspensions, etc.; but they can also be the same type of suspensions with different lengths, such as shock absorbers with different strokes Or MacPherson suspension or double wishbone suspension with knuckles of different lengths, etc. In the embodiment of the present application, suspensions with different specifications are used as different types of suspensions as an example for illustration, but it is not limited thereto.

For example, the first specification suspension 71 is a MacPherson strut suspension (MacPherson strut suspensions, or MacPherson strut suspension), its structure is composed of a shock absorber and a control arm, and the control arm only appears in the lower half The part is used to be responsible for the lateral support force, and it has the advantages of compact structure and low cost, and is one of the commonly used suspensions. The suspension 72 of the second specification is a double-wishbone suspension (double-wishbone suspension, double A-arm suspension frame), which adopts a wishbone design with a short top and a long bottom. The wishbone is rigid and has excellent rollover resistance. Can provide better handling performance. Although the difference between the MacPherson suspension and the double wishbone suspension is large, in the embodiment of the present application, the steering knuckles of the two suspensions can share the ball stud 321 of the lower control arm 32, and the lower control arm 32 can be used to The control arm 32 is connected to the subframe 20 .

Wherein, the structure of the first standard suspension 71 (MacPherson suspension) includes a top support member 711, a spring 712, a shock absorber 713 and a steering knuckle 714 (as shown in FIG. 3 ). In assembly, the top support member 711 (for example: fisheye seat) at the top of the suspension 71 of the first specification extends into the first assembly space S1 correspondingly, and is locked to the first installation part by fasteners such as screws or bolts. 311. The flange 314 surrounds the outer side of the top support member 711 so that the first mounting portion 311 covers the top end of the suspension bracket 71 of the first specification, and there is a gap between the flange 314 and the suspension bracket 71 of the first specification to prevent interference problems. At the same time, the steering knuckle 714 connected to the lower side of the shock absorber 713 is correspondingly assembled with the ball stud 321 of the lower control arm 32 , so that the first specification suspension 71 is assembled on the vehicle structure 1 .

The structure of the second specification suspension 72 (double wishbone suspension) includes a top support 721 , a spring 722 , a shock absorber 723 , a steering knuckle 724 and an upper control arm 725 (as shown in FIG. 4 ). In assembly, the top support 721 (for example: fisheye seat) at the top of the suspension 72 of the second specification is fixed to the second mounting part 312 by fasteners in the second assembly space S2, and the flange 314 surrounds the top support 721, the second mounting portion 312 covers the top end of the second-standard suspension 72, and there is a gap between the flange 314 and the second-standard suspension 72 to prevent interference. At the same time, the end of the shock absorber 723 of the second specification suspension 72 is pivotally connected to the second connecting portion 323 of the lower control arm 32 , and the end of the steering knuckle 724 located in front of the shock absorber is assembled to the ball stud of the lower control arm 32 321 , assembling the second specification suspension 72 on the vehicle structure 1 .

As can be seen from the above description, the shock absorber 31 provided by the embodiment of the present application locates the first installation part 311 and the second installment 312 at different positions on the outside and inside respectively, and at the same time, the shock absorber 31 has a stepped shape and an inclination Shaped height difference structure, so that the first mounting part 311 on the outside can be used to install the MacPherson suspension, and the second mounting part 312 on the inside can be used to install the double wishbone suspension, and it is matched with the ball of the lower control arm 32 The head pin 321, the first connecting portion 322 and the second connecting portion 323 are designed to connect the steering knuckle 714 of the MacPherson suspension, or the shock absorber 723 and the steering knuckle 724 of the double wishbone suspension, and pass through the lower The connection between the control arm 32 and the sub-frame 20 achieves the purpose that the two suspension systems can share the same vehicle structure 1, and effectively solves the difficulty in sharing the two suspensions under the same body structure in the past, resulting in the development cycle derived from changing the structural design and development costs.

In addition, since MacPherson suspension and double wishbone suspension are widely used in various types of vehicles, the structural design of the lower control arm may also be slightly different in the process of continuous improvement. Therefore, in some embodiments of the present application, according to different types of lower control arms, a plurality of matching ball studs may also be provided. For example, in some embodiments of the present application, the lower control arm includes a first arm and a second arm arranged in pairs on the left and right sides, so two matching ball heads are provided at the front end of the lower control arm The two ball studs can be but not limited to be arranged horizontally, so that the first arm can be pivotally connected to one of the ball studs, and the second arm can be pivotally connected to the remaining other pins. A ball stud makes lower control arms with different specifications also applicable to the technical solutions of the embodiments of the present application.

Of course, in some embodiments of the present application, it is also possible to use only the shock absorber tower on the main frame, and assemble the MacPherson suspension through the first mounting part without sharing the lower control arm, or use the The double-wishbone suspension is installed by the second mounting part, and the lower control arms of the MacPherson suspension or the double-wishbone suspension are pivotally connected to the corresponding sub-frame to complete the configuration of the suspension system, and Has the feature of sharing the main frame.

It can be seen from the above description that the present application provides a shared shock absorber tower and lower control arm through the arrangement of the suspension components. When the same vehicle structure needs to be applied to vehicles with different performances, it is only necessary to install the suspension with the corresponding performance on the first mounting part or the second mounting part and connect the lower control arm. In this case, different suspensions are applied and the subframe is shared. For example, the main frame provided by the embodiment of the present application can be applied to two different car models that focus on handling and sports performance at the same time. It only needs to install the corresponding Suspension systems for both models. Therefore, in the manufacture of the vehicle, the sharing of the vehicle structure is realized, and the development cost is greatly reduced.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims (11)

1. A vehicle structure, characterized in that it comprises: a main vehicle frame, a sub-frame and a suspension mounting assembly, wherein the suspension mounting assembly includes a shock absorber tower and a lower control arm, wherein The shock tower includes a body, a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are respectively arranged on two opposite sides of the body along the length direction of the body, and There is a height difference between the first installation part and the second installation part in the thickness direction of the body; One end of the lower control arm is pivotally connected to the sub-frame and corresponds to the second installation part, and the other end of the lower control arm corresponds to the first installation part and is provided with a ball stud, A suspension of a first specification is suitable for installation between the first installation part and the ball stud, and a suspension of a second specification is suitable for installation between the second installation part and the ball stud. 2. The vehicle structure according to claim 1, wherein the first mounting portion and the second mounting portion are respectively recessed relative to the bottom surface of the body to form a first mounting portion facing the ball stud. As for the assembly groove and the second assembly groove, the depth of the first assembly groove is greater than the depth of the second assembly groove, forming the height difference. 3. The vehicle structure according to claim 1, wherein the tops of the first mounting portion and the second mounting portion respectively protrude from the top surface of the body, wherein on the top surface, The height of the first installation part is greater than the height of the second installation part, forming the height difference, and the bottoms of the first installation part and the second installation part and the corresponding tops are respectively Wrap around to form a cuff. 4. A suspension mounting assembly, characterized in that it is suitable for being installed between the main frame and the subframe of the vehicle structure, and is compatible with suspensions of different specifications, and the suspension mounting assembly includes: The shock tower includes a body, a first installation part and a second installation part, the first installation part and the second installation part are respectively arranged on two opposite sides of the body along the length direction of the body, and the There is a height difference between the first installation part and the second installation part in the thickness direction of the body; A lower control arm, one end of which is pivotally connected to the sub-frame and corresponds to the second mounting portion, and the other end corresponds to the first mounting portion and is provided with a ball stud, the first mounting portion and A suspension of the first specification is suitable for installation between the ball studs, and a suspension of the second specification is suitable for installation between the second mounting part and the ball studs. 5. The suspension mounting assembly according to claim 4, wherein the first mounting portion and the second mounting portion are respectively recessed relative to the bottom surface of the body, forming a hole facing the ball stud. The first assembly groove and the second assembly groove, the depth of the first assembly groove is greater than the depth of the second assembly groove, forming the height difference. 6. The suspension mounting assembly according to claim 4, wherein the tops of the first mounting portion and the second mounting portion respectively protrude from the top surface of the body, wherein on the top surface Above, the height of the first installation part is greater than the height of the second installation part, forming the height difference, and the bottom of the first installation part and the second installation part and the corresponding top The spaces are respectively wrapped around to form a flanging. 7. The suspension mounting assembly according to claim 4, wherein the lower control arm is further provided with a first connecting portion and a second connecting portion, the first connecting portion is used to pivotally connect to the auxiliary In the vehicle frame, the second connecting portion is interposed between the first connecting portion and the ball stud, and is used for pivotally connecting the shock absorber of the suspension of the second specification. 8. The suspension mounting assembly as claimed in claim 4, wherein the lower control arm comprises a pair of a first arm and a second arm, and two of the lower control arms are horizontally arranged on the lower control arm. The ball studs, the first arm is pivotally connected to one of the ball studs, and the second arm is pivotally connected to the other ball stud. 9. A shock absorber, characterized in that it comprises a body, a first installation part and a second installation part, which are respectively arranged on opposite sides of the body along the length direction of the body, and the first installation part There is a height difference between the second installation part and the second installation part in the thickness direction of the body. 10. The shock tower according to claim 9, wherein the first mounting portion and the second mounting portion are respectively recessed relative to the bottom surface of the body to form a second mounting portion facing the ball stud. An assembly groove and a second assembly groove, the depth of the first assembly groove is greater than the depth of the second assembly groove, forming the height difference. 11. The shock tower according to claim 9, wherein the tops of the first mounting part and the second mounting part respectively protrude from the top surface of the body, wherein on the top surface , the height of the first installation part is greater than the height of the second installation part, forming the height difference, and the bottom of the first installation part and the second installation part and the corresponding top Wrap around each to form a flanging.

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