CN119636913B - Subframe assembly and vehicle - Google Patents
Subframe assembly and vehicleInfo
- Publication number
- CN119636913B CN119636913B CN202411992276.2A CN202411992276A CN119636913B CN 119636913 B CN119636913 B CN 119636913B CN 202411992276 A CN202411992276 A CN 202411992276A CN 119636913 B CN119636913 B CN 119636913B
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- mounting
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- shock absorber
- connecting section
- subframe assembly
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Abstract
The application relates to the technical field of auxiliary frames, and discloses an auxiliary frame assembly and a vehicle, wherein the auxiliary frame assembly comprises: two crossbeam bodies and two at least bumper shock absorber installing support, along the first direction, two at least crossbeam body intervals set up, and every crossbeam body all is used for being connected with the frame, along the second direction, two bumper shock absorber installing support interval set up, and every bumper shock absorber installing support all fixed connection is between two crossbeam bodies, wherein, every bumper shock absorber installing support all has the installation arch that is used for installing the bumper shock absorber, and first direction is perpendicular with the second direction. Therefore, the integration of the shock absorber installation function is realized on the auxiliary frame assembly, the auxiliary frame assembly is more compact, and meanwhile, the deformation resistance of the shock absorber installation support can be improved by arranging the installation protrusions on the shock absorber installation support, so that the strength and the rigidity of the auxiliary frame assembly are improved, and the vibration isolation performance and the NVH performance of the auxiliary frame assembly are improved.
Description
Technical Field
The application relates to the technical field of auxiliary frames, in particular to an auxiliary frame assembly and a vehicle.
Background
The auxiliary frame assembly is used as a force transmission structure connected between the suspension and the vehicle body, so that vibration and noise transmitted from the suspension to the vehicle body can be reduced to a certain extent, but with rapid development of the automobile industry, the automobile power types are increasingly diversified, for example, new energy automobiles such as plug-in hybrid power, range-extending hybrid power, pure electric power and the like are rapidly developed, and therefore, higher requirements are put forward on the service performance of the auxiliary frame assembly.
However, the overall strength and rigidity of the auxiliary frame assembly in the existing new energy automobile are poor, and the vibration isolation performance of the auxiliary frame assembly is greatly affected, so that the NVH performance of the auxiliary frame assembly is poor.
Disclosure of Invention
The application provides a subframe assembly and a vehicle, which solve the technical problem that the overall strength and rigidity of the existing subframe assembly are poor, and improve the vibration isolation performance and NVH performance of the subframe assembly.
In order to achieve the above purpose, the main technical scheme adopted by the application comprises the following steps:
in a first aspect, an embodiment of the present application provides a subframe assembly, including:
the two beam bodies are arranged at intervals along the first direction, and each beam body is used for being connected with the frame;
At least two bumper shock absorber installing support, along the second direction, at least two bumper shock absorber installing support interval sets up, and every bumper shock absorber installing support all fixed connection is between two crossbeam bodies, and wherein, every bumper shock absorber installing support all has the installation arch that is used for installing the bumper shock absorber, and first direction is perpendicular with the second direction.
According to the auxiliary frame assembly provided by the embodiment of the first aspect of the application, the auxiliary frame assembly utilizes the shock absorber mounting bracket as a connecting structure between the two cross beam bodies, so that the integration of a shock absorber mounting function is realized in the auxiliary frame assembly, the traditional longitudinal beam is replaced by the shock absorber mounting bracket, the auxiliary frame assembly is more compact, the deformation resistance of the auxiliary frame assembly is improved, the strength and the rigidity of the auxiliary frame assembly are improved, and meanwhile, the deformation resistance of the shock absorber mounting bracket can be improved by arranging the mounting bulge on the shock absorber mounting bracket, the strength and the rigidity of the auxiliary frame assembly are further improved, and the vibration isolation performance and the NVH performance of the auxiliary frame assembly are further improved.
Optionally, the mounting boss has an opening with a flange provided with a damper mounting portion.
So set up, be favorable to further improving the anti deformability of bumper shock absorber mounting point through setting up the turn-ups, be favorable to further improving the dynamic stiffness of bumper shock absorber mounting point department promptly.
Optionally, the shock absorber mounting bracket further has a mounting platform connected with the mounting boss, the mounting platform having a first mounting hole for fixedly connecting with the frame.
So set up, increased the power transmission route between bumper shock absorber and the frame, a part of power passes through bumper shock absorber installing support, crossbeam body in proper order and transmits to the frame promptly, and another part of power passes through bumper shock absorber installing support direct transfer to the frame to optimize and shared the transmission from bumper shock absorber power, be favorable to improving vibration isolation performance and NVH performance of sub-frame assembly. Meanwhile, the shock absorber mounting bracket is fixedly connected with the frame, so that the boundary connection strength of the shock absorber mounting bracket is improved, and the overall stability of the auxiliary frame assembly is improved.
Optionally, the damper mounting bracket includes a first sub-bracket and a second sub-bracket that are connected, the first sub-bracket has a first convex portion, the second sub-bracket has a second convex portion, the first convex portion has a first avoidance groove, the second convex portion has a second avoidance groove, the first sub-bracket is fixedly connected with the second sub-bracket, wherein the first convex portion and the second convex portion jointly form a mounting protrusion, and the first avoidance groove and the second avoidance groove jointly form an opening.
So set up, for integrated into one piece spare, through setting up first sub-support and second sub-support, be favorable to reducing bumper shock absorber installing support manufacturing cost.
Optionally, along the second direction, the crossbeam body is including the first linkage segment, first changeover portion, interlude, second changeover portion and the second linkage segment that connect gradually, and wherein, first linkage segment, interlude, second linkage segment wholly are the level setting.
The cross beam body is smooth and symmetrical in overall cross section structure, so that excessive local modes can be avoided, and dynamic characteristics such as dynamic stiffness and transfer function of the auxiliary frame assembly can be improved.
Optionally, the middle section has a first cross arm mounting hole and a second cross arm mounting hole symmetrically arranged along the second direction;
the first connecting section is provided with a third cross arm mounting hole, the second connecting section is provided with a fourth cross arm mounting hole, and the third cross arm mounting hole and the fourth cross arm mounting hole are symmetrically arranged along the second direction.
The first cross arm mounting hole and the second cross arm mounting hole on the two cross beam bodies are arranged in the middle section, the first cross arm mounting hole and the second cross arm mounting hole are horizontally transmitted, two force balances are formed, the third cross arm mounting hole and the fourth cross arm mounting hole on the two cross beam bodies are horizontally transmitted, two force balances are formed, and therefore the strength and the rigidity of the cross beam bodies are improved, and the strength and the rigidity of the auxiliary frame assembly are improved.
Optionally, along the second direction, the crossbeam body is including the first linkage segment, first changeover portion, interlude, second changeover portion and the second linkage segment that connect gradually, and wherein, along the third direction, first linkage segment is the same with second linkage segment height, and first linkage segment, second linkage segment all are higher than the interlude, and the third direction is all perpendicular with first direction, second direction.
By the arrangement, the cross beam body and the frame integrally form an isosceles trapezoid structure, so that the support rigidity of the cross beam body to the frame is improved.
Optionally, along the second direction, the beam body comprises a first connecting section, a first transition section, a middle section, a second transition section and a second connecting section which are sequentially connected, wherein the height of the cross section of the first connecting section in the third direction gradually decreases from the middle section to the first connecting section;
the height of the cross section of the second connecting section in the third direction is gradually reduced from the middle section to the second connecting section, wherein the third direction is perpendicular to the first direction and the second direction.
So set up, can reserve the installation space for crossbeam body and frame, xarm.
Optionally, the device further comprises two stabilizer bar mounting brackets, wherein the two stabilizer bar mounting brackets are arranged between the two shock absorber mounting brackets along the second direction, and the two stabilizer bar mounting brackets are arranged at intervals, and each stabilizer bar mounting bracket is fixedly connected between the two beam bodies.
So set up, two stabilizer bar installing support have increased two connection structure equivalent at two crossbeam bodies, are favorable to further improving the deformability of sub vehicle frame assembly to improve sub vehicle frame assembly's bulk strength and rigidity, simultaneously, still further realized the promotion of sub vehicle frame assembly function with stabilizer bar installing support setting between two crossbeam bodies, directly integrated sub vehicle frame assembly with stabilizer bar installing function, can further reduce sub vehicle frame assembly's spare part quantity, be favorable to saving assembly cost.
Optionally, the device further comprises two connecting pieces, wherein the two connecting pieces are arranged between the two shock absorber mounting brackets along the second direction, and the two connecting pieces are arranged at intervals, and each connecting piece is fixedly connected between the two beam bodies.
So set up, two connecting pieces have still further increased two connection structure at two crossbeam bodies, are favorable to further improving the deformability of sub vehicle frame assembly to improve sub vehicle frame assembly's bulk strength and rigidity.
In a second aspect, embodiments of the present application provide a vehicle comprising the subframe assembly of the first aspect embodiment.
According to the vehicle provided by the embodiment of the second aspect of the application, by arranging the auxiliary frame assembly, the auxiliary frame assembly utilizes the shock absorber mounting bracket as a connecting structure between the two beam bodies, so that the integration of the shock absorber mounting function is realized on the auxiliary frame assembly, the conventional longitudinal beam is replaced by the shock absorber mounting bracket, the auxiliary frame assembly is more compact, the deformation resistance of the auxiliary frame assembly is improved, the strength and the rigidity of the auxiliary frame assembly are improved, and meanwhile, the deformation resistance of the shock absorber mounting bracket can be improved by arranging the mounting bulge on the shock absorber mounting bracket, the strength and the rigidity of the auxiliary frame assembly are further improved, and the vibration isolation performance and the NVH performance of the auxiliary frame assembly are further improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a subframe assembly provided in accordance with one embodiment of the present application;
FIG. 2 is a top view of a subframe assembly according to one embodiment of the present application;
FIG. 3 is a side view of a subframe assembly provided in accordance with one embodiment of the present application;
FIG. 4 is an enlarged view of a portion of a subframe assembly according to one embodiment of the present application.
[ Reference numerals description ]
A subframe assembly 100;
The beam body 1, the first mounting plate 11, the second mounting plate 12, the third mounting plate 13, the first connecting section 14, the third transverse arm mounting hole 141, the first transition section 15, the middle section 16, the first transverse arm mounting hole 161, the second transverse arm mounting hole 162, the second transition section 17, the second connecting section 18 and the fourth transverse arm mounting hole 181;
The damper mounting bracket 2, the mounting boss 21, the damper mounting portion 211, the opening 212, the flange 2121, the mounting table 22, the first mounting hole 221, the first sub-bracket 23, the second sub-bracket 24;
a stabilizer bar mounting bracket 3;
A first direction X, a second direction Y and a third direction Z.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used in the description of this application in this application are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of this application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the application may be combined with other embodiments.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The term "and/or" in the present application is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate that a exists alone, while a and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.
The term "plurality" as used herein means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).
It should be noted that, as the force transmission structure connected between the suspension and the vehicle body, the subframe assembly can reduce the vibration and noise transmitted from the suspension to the vehicle body to a certain extent, but with the rapid development of the automobile industry, the automobile power types are increasingly diversified, for example, new energy automobiles such as plug-in hybrid, extended range hybrid, pure electric and the like develop rapidly, so that higher requirements are put forward on the service performance of the subframe assembly.
However, the overall strength and rigidity of the auxiliary frame assembly in the existing new energy automobile are poor, and the vibration isolation performance of the auxiliary frame assembly is greatly affected, so that the NVH performance of the auxiliary frame assembly is poor.
Based on this, the application proposes a subframe assembly 100, the subframe assembly 100 utilizes the shock absorber mounting bracket 2 as a connecting structure between two beam bodies 1, not only realizes the integration of the shock absorber mounting function in the subframe assembly 100, but also makes the subframe assembly 100 more compact by replacing the traditional longitudinal beam with the shock absorber mounting bracket 2, and is beneficial to improving the deformation resistance of the subframe assembly 100, thereby improving the strength and rigidity of the subframe assembly 100, and meanwhile, the deformation resistance of the shock absorber mounting bracket 2 itself can be improved by arranging the mounting protrusion 21 on the shock absorber mounting bracket 2, thereby being beneficial to further improving the strength and rigidity of the subframe assembly 100, and further improving the vibration isolation performance and NVH performance of the subframe assembly 100.
As shown in fig. 1-4, a subframe assembly 100 according to an embodiment of the first aspect of the present application includes two cross-beam bodies 1 and at least two shock absorber mounting brackets 2.
Specifically, the first direction X in the present application is the length direction of the vehicle, the second direction Y in the present application is the width direction of the vehicle, along the first direction X, two beam bodies 1 are arranged at intervals, and each beam body 1 is used for being connected with a vehicle frame, along the second direction Y, at least two shock absorber mounting brackets 2 are arranged at intervals, for example, as shown in fig. 1, along the second direction Y, two shock absorber mounting brackets 2 are arranged at intervals, and each shock absorber mounting bracket 2 is fixedly connected between two beam bodies 1, the fixed mounting manner includes but is not limited to welding, further, each shock absorber mounting bracket 2 has a mounting protrusion 21 for mounting a shock absorber, wherein the first direction X is perpendicular to the second direction Y. So arranged, excitation from the road surface can be transmitted to the frame's girder through the shock absorber mounting bracket 2 and the cross-beam body 1.
It should be noted that, a connection surface may be disposed between the shock absorber mounting bracket 2 and the beam body 1, so that a connection area between the shock absorber mounting bracket 2 and the beam body 1 may be increased by welding the connection surface, which is beneficial to increasing a connection strength between the shock absorber mounting bracket 2 and the beam body 1, and further may increase an overall strength of the subframe assembly 100.
Further, as shown in fig. 1, along the first direction X, the shock absorber mounting bracket 2 is used as a connecting structure connected between the two beam bodies 1, compared with the traditional transverse beam assembly mode, the size of the subframe assembly 100 in the first direction X is greatly reduced, so that the whole subframe assembly 100 is more compact, when the subframe assembly 100 is stimulated by a road surface, the subframe assembly 100 can bear larger transverse force, longitudinal force or torsion force, namely, the deformation resistance of the subframe assembly 100 is improved through compact design, and the overall strength and rigidity of the subframe assembly 100 are improved.
Meanwhile, the shock absorber mounting bracket 2 is arranged between the two beam bodies 1, so that the function of the auxiliary frame assembly 100 is improved, the shock absorber mounting function is directly integrated into the auxiliary frame assembly 100, the number of parts of the auxiliary frame assembly 100 can be further reduced, and the assembly cost is saved.
Further, the shock absorber mounting bracket 2 has the mounting protrusion 21, and it should be noted that by arranging the mounting protrusion 21, the deformation resistance of the region of the mounting protrusion 21 can be improved, so as to further improve the strength and rigidity of the shock absorber mounting bracket 2 itself, and after the shock absorber mounting bracket 2 is assembled with the cross beam in a matched manner, the strength and rigidity of the subframe assembly 100 can be further improved, so that the vibration isolation performance and the NVH performance of the subframe assembly 100 can be further improved.
According to the subframe assembly 100 provided by the embodiment of the first aspect of the application, the shock absorber mounting bracket 2 is used as a connecting structure between the two beam bodies 1, so that the integration of the shock absorber mounting function is realized on the subframe assembly 100, the conventional longitudinal beam is replaced by the shock absorber mounting bracket 2, the subframe assembly 100 is more compact, the deformation resistance of the subframe assembly 100 is improved, the strength and the rigidity of the subframe assembly 100 are improved, and meanwhile, the deformation resistance of the shock absorber mounting bracket 2 can be improved by arranging the mounting protrusions 21 on the shock absorber mounting bracket 2, the strength and the rigidity of the subframe assembly 100 are further improved, and the vibration isolation performance and the NVH performance of the subframe assembly 100 are further improved.
In some embodiments of the present application, as shown in fig. 1, the mounting boss 21 is provided with a damper mounting portion 211. That is, by providing the damper mounting portion 211 in the region of the mounting boss 21 so that the damper mounting portion 211 is fitted with the damper, when the damper is fitted with the damper mounting portion 211, the excitation from the road surface is transmitted to the damper mounting bracket 2 through the damper, and since the mounting boss 21 improves the deformation resistance when the region of the mounting boss 21 is subjected to the force, the strength and rigidity of the damper mounting point can be improved by providing the damper mounting portion 211 in the region of the mounting boss 21, that is, the dynamic rigidity at the damper mounting point can be advantageously improved.
In some embodiments of the present application, as shown in fig. 1, the mounting boss 21 has an opening 212, and the opening 212 has a flange 2121, wherein the flange 2121 may extend outwardly in a direction away from the mounting boss 21 or may extend inwardly in a direction away from the mounting boss 21, specifically according to the actual situation, without being limited thereto, and further, the flange is provided with a damper mounting portion 211.
Specifically, the mounting boss 21 is provided with the damper mounting portion 211 in a region so that the damper mounting portion 211 is fitted with the damper, when the damper is fitted with the damper mounting portion 211, the excitation from the road surface is transmitted to the damper mounting bracket 2 through the damper, and since the mounting boss 21 improves the deformation resistance when the mounting boss 21 is subjected to the force, the strength and rigidity of the damper mounting point can be improved by arranging the damper mounting portion 211 in the region of the mounting boss 21, that is, the dynamic rigidity at the damper mounting point can be improved.
Further, the damper mounting portion 211 is mounted on the flange of the opening 212 of the mounting boss 21, and when the damper is assembled with the damper mounting portion 211, the opening 212 of the mounting boss 21 is used for avoiding the damper so that the damper can be fixedly mounted on the flange 2121 through the damper mounting hole, and it can be understood that the flange 2121 is provided to facilitate further improvement of the deformation resistance of the damper mounting point, that is, further improvement of the dynamic stiffness of the damper mounting point.
In some embodiments of the present application, as shown in fig. 1 and 4, the shock absorber mounting bracket 2 further has a mounting table 22 coupled to the mounting boss 21, the mounting table 22 having a first mounting hole 221, the first mounting hole 221 being for fixedly coupling with the vehicle frame.
Specifically, the mounting table 22 may be configured as a mounting platform connected to the mounting boss 21, where two first mounting holes 221 are provided on the mounting platform, and the first mounting holes 221 may be fixedly connected to the frame by using bolts, so that the arrangement increases a force transmission path between the shock absorber and the frame, that is, a part of force is sequentially transmitted to the frame through the shock absorber mounting bracket 2 and the beam body 1, and another part of force is directly transmitted to the frame through the shock absorber mounting bracket 2, so that the transmission of force from the shock absorber is optimized and shared, and the improvement of the vibration isolation performance and the NVH performance of the subframe assembly 100 is facilitated. Meanwhile, the fixedly connecting of the shock absorber mounting bracket 2 with the frame is also beneficial to improving the boundary connection strength of the shock absorber mounting bracket 2, so that the overall stability of the auxiliary frame assembly 100 is improved.
The extension shapes of the mounting protrusions 21 and the mounting base 22 of the damper mounting bracket 2 are regular, thereby being beneficial to improving the utilization rate of materials.
In some embodiments of the present application, as shown in fig. 4, the damper mounting bracket 2 includes a first sub-bracket 23 and a second sub-bracket 24 connected, the first sub-bracket 23 has a first protrusion, the second sub-bracket 24 has a second protrusion, the first protrusion has a first avoidance groove, the second protrusion has a second avoidance groove, the first sub-bracket 23 is fixedly connected with the second sub-bracket 24, wherein the first protrusion and the second protrusion form a mounting protrusion together, and the first avoidance groove and the second avoidance groove form an opening together.
Specifically, the damper mounting bracket 2 may be configured as an integrally formed member, or may be formed by welding two first sub-brackets 23 and two second sub-brackets 24, where, along the first direction X, the first sub-bracket 23 is fixedly connected with one of the two beam bodies 1, and the second sub-bracket 24 is fixedly connected with the other of the two beam bodies 1, as will be appreciated, the first sub-bracket 23 has a first protruding portion, the second sub-bracket 24 has a second protruding portion, the first protruding portion has a first avoiding groove, the second protruding portion has a second avoiding groove, and after the first sub-bracket 23 and the second sub-bracket 24 are fixedly connected, the first protruding portion and the second protruding portion together form the mounting protrusion 21, and the first avoiding groove and the second avoiding groove together form the opening 212, where, the flanges 2121 of the first avoiding groove and the flanges 2121 of the second avoiding groove are both provided with damper mounting holes, so, relative to the integrally formed member, by providing the first sub-bracket 23 and the second sub-bracket 24, the production cost of the damper mounting bracket 2 is advantageously reduced.
In some embodiments of the present application, as shown in fig. 4, the beam body 1 includes a first mounting plate 11, a second mounting plate 12, and a third mounting plate 13, the first mounting plate 11 being disposed opposite to and spaced apart from the third mounting plate 13 along the first direction X, the second mounting plate 12 being fixedly connected between the first mounting plate 11 and the third mounting plate 13. That is, the cross sections of the first mounting plate 11, the second mounting plate 12 and the third mounting plate 13 form a figure, which is advantageous in improving the deformation resistance of the beam body 1 when being stressed, thereby improving the strength and rigidity of the beam body 1.
In some embodiments of the present application, the first mounting plate 11 and the third mounting plate 13 are symmetrically disposed, and the first mounting plate 11 and the third mounting plate 13 may be configured to have the same structure, the beam body 1 may be directly formed by stamping, the process is simple, and the first mounting plate 11 and the third mounting plate 13 may be further provided with a flanging structure to further improve the strength and rigidity of the beam body 1.
In some embodiments of the present application, as shown in fig. 3, the beam body 1 includes a first connection section 14, a first transition section 15, an intermediate section 16, a second transition section 17, and a second connection section 18 connected in sequence in the second direction Y, wherein the first connection section, the intermediate section, and the second connection section are disposed horizontally as a whole.
Specifically, taking the beam body 1 as an example according to the placement direction shown in fig. 3, the beam body 1 includes, from left to right, a first connection section 14, a first transition section 15, a middle section 16, a second transition section 17 and a second connection section 18 that are sequentially connected, where the whole of the first connection section 14, the middle section 16 and the second connection section 18 is horizontally arranged, as shown in fig. 3, the cross section structure of the whole beam body 1 is relatively gentle and symmetrical, so that excessive local modes can be avoided, and dynamic characteristics such as dynamic stiffness and transfer function of the subframe assembly 100 can be improved.
In some embodiments of the present application, as shown in fig. 3, the middle section 16 has a first cross arm mounting hole 161 and a second cross arm mounting hole 162 symmetrically disposed in the second direction Y, the first connecting section 14 has a third cross arm mounting hole 141, and the second connecting section 18 has a fourth cross arm mounting hole 181 symmetrically disposed in the second direction Y, the third cross arm mounting hole 141 and the fourth cross arm mounting hole 181.
Specifically, the middle sections 16 of the two beam bodies 1 are respectively provided with a first transverse arm mounting hole 161 and a second transverse arm mounting hole 162 which are symmetrically arranged, wherein the first transverse arm mounting hole 161 is used for mounting a first transverse control arm on the left side of a vehicle body, the second transverse arm mounting hole 162 is used for mounting a second transverse control arm on the right side of the vehicle body, the first transverse control arm is used for transmitting left control force, and the second transverse control arm is used for transmitting right control force, so that the left side and the right side of the two beam bodies 1 are respectively provided with two first transverse control arms and two second transverse control arms, and the first transverse arm mounting hole 161 and the second transverse arm mounting hole 162 are symmetrically arranged and are respectively positioned on the horizontal middle section 16, so that forces born by the first transverse arm mounting hole 161 and the second transverse arm mounting hole 162 on the two beam bodies 1 can be horizontally transmitted on the middle section 16, and two force balances are formed, thereby being beneficial to improving the strength and rigidity of the beam bodies 1 themselves and being beneficial to improving the strength and rigidity of the subframe assembly 100.
Further, the first connecting sections 14 of the two beam bodies 1 are respectively provided with a third transverse arm mounting hole 141, the second connecting sections 18 of the two beam bodies 1 are respectively provided with a fourth transverse arm mounting hole 181, wherein the third transverse arm mounting holes 141 are used for mounting a third transverse control arm on the left side of a vehicle body, the fourth transverse arm mounting holes 181 are used for mounting a fourth transverse control arm on the right side of the vehicle body, the third transverse control arm is used for transmitting left control force, and the fourth transverse control arm is used for transmitting right control force, so that the left side and the right side of the two beam bodies 1 are respectively provided with two third transverse control arms and two fourth transverse control arms, and the forces born by the third transverse arm mounting holes 141 and the fourth transverse arm mounting holes 181 on the two beam bodies 1 can be transmitted along the horizontal direction, so that the two transverse arm mounting holes 141 and the fourth transverse arm mounting holes 181 are balanced, the strength and the rigidity of the beam body 1 are further improved, and the strength and the rigidity of the subframe assembly 100 are further improved.
In some embodiments of the present application, as shown in fig. 3, the beam body 1 includes a first connection section 14, a first transition section 15, an intermediate section 16, a second transition section 17, and a second connection section 18 connected in sequence along a second direction Y, wherein the first connection section 14 and the second connection section 18 are at the same height along a third direction Z, and the first connection section 14 and the second connection section 18 are both higher than the intermediate section 16, and the third direction Z is perpendicular to the first direction X and the second direction Y. That is, taking the beam body 1 as an example according to the placement direction shown in fig. 3, the first connecting section 14, the middle section 16 and the second connecting section 18 are integrally horizontally arranged, wherein the first connecting section 14 and the second connecting section 18 are at the same horizontal height, and the first connecting section 14 and the second connecting section 18 are higher than the middle section 16, so that the beam body 1 and the frame integrally form an isosceles trapezoid structure, which is beneficial to improving the supporting rigidity of the beam body 1 to the frame.
In some embodiments of the present application, as shown in fig. 3, the beam body 1 includes a first connection section 14, a first transition section 15, an intermediate section 16, a second transition section 17, and a second connection section 18 connected in this order, in a second direction Y, a height of a cross section of the first connection section 14 in a third direction Z gradually decreases from the intermediate section 16 toward the second connection section 18, and a height of a cross section of the second connection section 18 in the third direction Z gradually decreases, wherein the third direction is perpendicular to both the first direction and the second direction.
Specifically, the height of the cross section of the first connecting section 14 from right to left in the third direction Z is gradually reduced, and the height of the cross section of the second connecting section 18 from left to right in the third direction Z is gradually reduced, so that an installation space can be reserved for the cross beam body 1, the frame and the cross arm.
Further, as shown in fig. 2, the width of the first connecting section 14 gradually increases from right to left, and the width of the second connecting section 18 gradually increases from left to right, so that force transmission of the first connecting section 14 and the second connecting section 18 can be more effectively guided, and the force transmission performance is better, thereby being beneficial to improving the collision performance of the subframe assembly 100.
In some embodiments of the present application, as shown in fig. 1 and 2, the stabilizer bar mounting frame further comprises two stabilizer bar mounting frames 3, wherein the two stabilizer bar mounting frames 3 are arranged between the two shock absorber mounting frames 2 along the second direction Y, and the two stabilizer bar mounting frames 3 are arranged at intervals, wherein each stabilizer bar mounting frame 3 is fixedly connected between the two beam bodies 1.
Specifically, two stabilizer bar mounting brackets 3 are arranged between the two shock absorber mounting brackets 2, the two stabilizer bar mounting brackets 3 are arranged at intervals along the second direction Y, the stabilizer bar mounting brackets 3 are used for mounting stabilizer bars, and each stabilizer bar mounting bracket 3 is fixedly connected between the two beam bodies 1. So set up, two stabilizer bar installing support 3 have increased two connection structure at two crossbeam bodies 1 equivalently, are favorable to further improving sub-frame assembly 100's anti deformability to improve sub-frame assembly 100's bulk strength and rigidity.
Meanwhile, the stabilizer bar mounting bracket 3 is arranged between the two beam bodies 1, so that the function of the auxiliary frame assembly 100 is further improved, the stabilizer bar mounting function is directly integrated into the auxiliary frame assembly 100, the number of parts of the auxiliary frame assembly 100 can be further reduced, and the assembly cost is saved.
In some embodiments of the present application, two connectors are further included, and in the second direction Y, the two connectors are disposed between the two damper mounting brackets 2 and the two connectors are disposed at intervals, wherein each connector is fixedly connected between the two beam bodies 1.
Specifically, two connecting pieces are arranged between the two shock absorber mounting brackets 2, and are arranged at intervals along the second direction Y, and each connecting piece is fixedly connected between the two beam bodies 1. So set up, two connecting pieces have still further increased two connection structure at two crossbeam bodies 1, are favorable to further improving sub-frame assembly 100's anti deformability to improve sub-frame assembly 100's bulk strength and rigidity.
In a second aspect, embodiments of the present application provide a vehicle comprising the subframe assembly 100 of the first aspect embodiment.
According to the vehicle provided by the second aspect of the present application, by providing the above-mentioned subframe assembly 100, the subframe assembly 100 utilizes the shock absorber mounting bracket 2 as the connecting structure between the two cross beam bodies 1, not only the integration of the shock absorber mounting function is realized in the subframe assembly 100, but also the shock absorber mounting bracket 2 replaces the conventional longitudinal beam, so that the subframe assembly 100 is more compact, the deformation resistance of the subframe assembly 100 is advantageously improved, and thus the strength and rigidity of the subframe assembly 100 are improved, and meanwhile, the deformation resistance of the shock absorber mounting bracket 2 itself is advantageously further improved by providing the mounting protrusions 21 on the shock absorber mounting bracket 2, so that the vibration isolation performance and the NVH performance of the subframe assembly 100 are further improved.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Although embodiments of the present application have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the application, and such modifications and variations are within the scope of the application as defined by the appended claims.
Claims (9)
1. A subframe assembly, comprising:
the two beam bodies are arranged at intervals along the first direction, and each beam body is used for being connected with the frame;
The at least two shock absorber mounting brackets are arranged at intervals along a second direction, each shock absorber mounting bracket is fixedly connected between two beam bodies, each shock absorber mounting bracket is provided with a mounting protrusion for mounting a shock absorber, and the first direction is perpendicular to the second direction;
The mounting protrusion is provided with an opening, the opening is provided with a flanging, and the flanging is provided with a damper mounting part;
the shock absorber installing support includes first sub-support and second sub-support, first sub-support has first convex part, the second sub-support has the second convex part, first convex part has the first groove of dodging, the second convex part has the second groove of dodging, first sub-support with second sub-support fixed connection, wherein, first convex part with the second convex part jointly forms the installation arch, first dodging the groove with the second dodges the groove jointly and forms the opening.
2. The subframe assembly of claim 1 wherein said shock absorber mounting bracket further has a mounting platform connected to said mounting boss, said mounting platform having a first mounting hole for fixedly connecting with a vehicle frame.
3. The subframe assembly of claim 1, wherein the cross member body comprises a first connecting section, a first transition section, a middle section, a second transition section, and a second connecting section connected in sequence along the second direction, wherein the first connecting section, the middle section, and the second connecting section are disposed horizontally as a whole.
4. A subframe assembly as claimed in claim 3, wherein in the second direction, the intermediate section has symmetrically disposed first and second cross arm mounting apertures;
The first connecting section is provided with a third cross arm mounting hole, the second connecting section is provided with a fourth cross arm mounting hole, and the third cross arm mounting hole and the fourth cross arm mounting hole are symmetrically arranged along the second direction.
5. The subframe assembly of claim 1, wherein the cross member body comprises a first connecting section, a first transition section, a middle section, a second transition section, and a second connecting section connected in sequence along the second direction, wherein the first connecting section is at the same height as the second connecting section along a third direction, wherein the first connecting section and the second connecting section are both higher than the middle section, and wherein the third direction is perpendicular to the first direction and the second direction.
6. The subframe assembly of claim 1 wherein, in the second direction, the cross-member body comprises a first connecting section, a first transition section, a middle section, a second transition section, and a second connecting section connected in sequence, the cross-section of the first connecting section gradually decreasing in height in a third direction from the middle section toward the first connecting section;
the height of the cross section of the second connecting section in the third direction is gradually reduced from the middle section to the second connecting section, wherein the third direction is perpendicular to the first direction and the second direction.
7. The subframe assembly of claim 1, further comprising two stabilizer bar mounting brackets disposed between the two shock absorber mounting brackets in the second direction, the two stabilizer bar mounting brackets being spaced apart, wherein each stabilizer bar mounting bracket is fixedly coupled between the two cross-member bodies.
8. The subframe assembly of claim 1, further comprising two connectors disposed between the two shock absorber mounting brackets in the second direction, the two connectors being spaced apart, wherein each of the connectors is fixedly coupled between the two cross-member bodies.
9. A vehicle comprising a subframe assembly according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411992276.2A CN119636913B (en) | 2024-12-31 | 2024-12-31 | Subframe assembly and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411992276.2A CN119636913B (en) | 2024-12-31 | 2024-12-31 | Subframe assembly and vehicle |
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| Publication Number | Publication Date |
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| CN119636913A CN119636913A (en) | 2025-03-18 |
| CN119636913B true CN119636913B (en) | 2025-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411992276.2A Active CN119636913B (en) | 2024-12-31 | 2024-12-31 | Subframe assembly and vehicle |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211107698U (en) * | 2019-12-06 | 2020-07-28 | 东风小康汽车有限公司重庆分公司 | Rear auxiliary frame for extended-range automobile and automobile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847793B (en) * | 2012-11-30 | 2016-06-08 | 广州汽车集团股份有限公司 | A kind of automobile rear sub-frame and corresponding automobile |
| DE102013220319A1 (en) * | 2013-10-09 | 2015-04-09 | Zf Friedrichshafen Ag | Subframe with axle beam and strut tower |
| CN115066366A (en) * | 2020-04-13 | 2022-09-16 | 武汉路特斯汽车有限公司 | Rear damping tower, rear damping tower assembly and vehicle |
| CN221049776U (en) * | 2023-09-28 | 2024-05-31 | 长城汽车股份有限公司 | Shock absorber mounting structure and vehicle |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211107698U (en) * | 2019-12-06 | 2020-07-28 | 东风小康汽车有限公司重庆分公司 | Rear auxiliary frame for extended-range automobile and automobile |
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| CN119636913A (en) | 2025-03-18 |
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