CN117549970A - Sub-frame of vehicle, body assembly of vehicle and vehicle - Google Patents
Sub-frame of vehicle, body assembly of vehicle and vehicle Download PDFInfo
- Publication number
- CN117549970A CN117549970A CN202311382113.8A CN202311382113A CN117549970A CN 117549970 A CN117549970 A CN 117549970A CN 202311382113 A CN202311382113 A CN 202311382113A CN 117549970 A CN117549970 A CN 117549970A
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- Prior art keywords
- vehicle
- subframe
- cross member
- frame
- auxiliary frame
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- 239000000725 suspension Substances 0.000 claims description 43
- 238000009434 installation Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000008093 supporting effect Effects 0.000 abstract description 10
- 238000005452 bending Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a sub-frame of a vehicle, a vehicle body assembly of the vehicle and the vehicle, wherein the sub-frame comprises: the first cross beam and the second cross beam are arranged at intervals along the first direction of the auxiliary frame; the plurality of auxiliary frame longitudinal beams are connected between the first cross beam and the second cross beam; the auxiliary frame longitudinal beam positioned at the outermost side is connected with a control arm mounting frame; along the first direction, the third crossbeam is located between first crossbeam and the second crossbeam, and third crossbeam and a plurality of sub-frame longeron all are connected, and along the control arm mounting bracket of second direction third crossbeam's both ends respectively with corresponding sub-frame longeron correspond the setting. From this, correspond the setting with the control arm mounting bracket of corresponding sub vehicle frame longeron respectively through the both ends of third crossbeam, the third crossbeam can play the supporting role to the control arm mounting bracket of corresponding sub vehicle frame longeron, can promote the rigidity of control arm mounting bracket, reduces road noise and passes through the control arm mounting bracket and conveys to passenger cabin to reduce vehicle noise that traveles, and then promote vehicle riding comfort.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a subframe of a vehicle, a vehicle body assembly with the subframe and the vehicle with the vehicle body assembly.
Background
In the related art, the auxiliary frame of the existing vehicle is provided with a control arm mounting frame, the rigidity of the control arm mounting frame is insufficient, road noise is transmitted to a passenger cabin through the control arm mounting frame, so that the driving noise of the vehicle is increased, and the riding comfort of the vehicle is reduced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a subframe of a vehicle, which can improve the rigidity of a control arm mounting frame, reduce the transmission of road noise to a passenger compartment through the control arm mounting frame, and thereby reduce the driving noise of the vehicle, and further improve the riding comfort of the vehicle.
The invention further provides a vehicle body assembly of the vehicle with the auxiliary frame.
The invention further provides a vehicle with the vehicle body assembly.
The auxiliary frame of the vehicle according to the embodiment of the invention comprises: the first cross beam and the second cross beam are arranged at intervals along the first direction of the auxiliary frame; the auxiliary frame longitudinal beams are arranged along a second direction of the auxiliary frame, the auxiliary frame longitudinal beams are connected between the first cross beam and the second cross beam, the first direction is perpendicular to the second direction, and the auxiliary frame longitudinal beams located at the outermost side along the second direction are connected with a control arm mounting frame; the third cross beam is located between the first cross beam and the second cross beam along the first direction, the third cross beam and the plurality of auxiliary frame longitudinal beams are connected, and the two ends of the third cross beam are respectively and correspondingly arranged with the control arm mounting frames of the corresponding auxiliary frame longitudinal beams along the second direction.
According to the auxiliary frame of the vehicle, the plurality of auxiliary frame longitudinal beams are connected between the first cross beam and the second cross beam, the third cross beam and the plurality of auxiliary frame longitudinal beams are connected, fatigue strength and rigidity of the auxiliary frame can be improved, two ends of the third cross beam along the second direction are respectively and correspondingly arranged with the control arm mounting frames of the corresponding auxiliary frame longitudinal beams, the third cross beam can play a supporting role on the control arm mounting frames of the corresponding auxiliary frame longitudinal beams, lateral supporting effect of the third cross beam can improve rigidity of the control arm mounting frames, road noise is reduced and transmitted to a passenger cabin through the control arm mounting frames, driving noise of the vehicle is reduced, riding comfort of the vehicle is improved, fatigue load of the control arm mounting frames can be better dispersed to the auxiliary frame, and fatigue durability of the auxiliary frame is improved.
According to some embodiments of the invention, two ends of the third beam are respectively corresponding to the rear ends of the corresponding control arm mounting frames.
According to some embodiments of the invention, the subframe of the vehicle further comprises: the suspension installation frame is fixedly arranged on the third cross beam.
According to some embodiments of the invention, the suspension mount is provided at a central position of the third beam.
According to some embodiments of the invention, the suspension mount comprises: the first installation department and second installation department, first installation department with the second installation department is followed the second direction is relative and spaced apart, first installation department with the second installation department all is equipped with first mounting hole, just first installation department and/or the second installation department has set firmly annular assembly structure, assembly structure's inner peripheral wall has the internal thread and corresponds with corresponding first mounting hole.
According to some embodiments of the invention, the suspension mount further comprises: the connecting part is connected between the first installation part and the second installation part, and the connecting part is close to the lower end of the first installation part and the lower end of the second installation part.
According to some embodiments of the invention, the upper end of the first mounting portion and/or the upper end of the second mounting portion has a bending portion, the bending portion is connected to the third beam, and the bending portion is bent toward the outer side of the third beam along the second direction.
According to some embodiments of the invention, the third beam is configured as an arc-shaped structure, the third beam protruding towards the second beam in the first direction.
According to some embodiments of the invention, the third beam comprises: the auxiliary frame longitudinal beam comprises a first beam main body, a second beam main body and a third beam main body, wherein the second beam main body is connected between the first beam main body and the third beam main body, the second beam main body is configured to face to the arc-shaped structure protruding from the second beam, and the first beam main body and the third beam main body are respectively connected with the corresponding auxiliary frame longitudinal beam.
According to some embodiments of the invention, the height dimension of the second beam body in the third direction of the subframe is H1, and the width dimension of the second beam body in the first direction of the subframe is H2, satisfying the relationship: h2 < H1, wherein the first direction, the second direction and the third direction are perpendicular to each other.
In some embodiments according to the invention, 70 mm.ltoreq.H2.ltoreq.90 mm.
According to some embodiments of the invention, the first beam body and/or the third beam body is a flat structure.
According to some embodiments of the invention, in a third direction of the subframe, the orthographic projection of the third cross member is located on a rear side of the orthographic projection of the vehicle's powertrain.
A vehicle body assembly of a vehicle according to an embodiment of the invention includes: a body having a body rail; the auxiliary frame is fixedly arranged on the longitudinal beam of the vehicle body and is positioned below the longitudinal beam of the vehicle body.
The vehicle comprises the vehicle body component of the vehicle.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic perspective view of a subframe according to an embodiment of the present invention;
FIG. 2 is a schematic view of an assembly of a subframe with a suspension according to an embodiment of the present invention;
fig. 3 is a schematic view showing the assembly of the subframe and the side member of the vehicle body according to the embodiment of the present invention.
Reference numerals:
a sub-frame 100;
a first cross member 10;
a second cross member 20;
sub frame rail 30; a control arm mount 32;
a body main body 40; a vehicle body side member 41;
a third cross member 60; a suspension mount 61; a first mounting portion 611; a second mounting portion 612; a first mounting hole 613; a mounting structure 614; a connection portion 615; a bending portion 616; a first beam body 62; a second beam body 63; a third beam body 64;
a powertrain 200.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
A subframe 100 of a vehicle, a body component of the vehicle, and the vehicle according to embodiments of the present invention are described below with reference to fig. 1 to 3. The subframe 100 may be a front subframe of a vehicle, and the present application describes the subframe 100 as a front subframe.
As shown in fig. 1, a subframe 100 according to an embodiment of the present invention includes: the first cross member 10 and the second cross member 20, the first cross member 10 and the second cross member 20 being arranged at intervals along the first direction of the sub-frame 100; the plurality of auxiliary frame longitudinal beams 30, the plurality of auxiliary frame longitudinal beams 30 are arranged along the second direction of the auxiliary frame 100, the plurality of auxiliary frame longitudinal beams 30 are connected between the first cross beam 10 and the second cross beam 20, the first direction is vertical to the second direction, and the auxiliary frame longitudinal beam 30 positioned at the outermost side along the second direction is connected with a control arm mounting frame 32; the third cross member 60, along the first direction, the third cross member 60 is located between the first cross member 10 and the second cross member 20, the third cross member 60 and the plurality of sub-frame rails 30 are all connected, and two ends of the third cross member 60 along the second direction are respectively disposed corresponding to the control arm mounting frames 32 of the corresponding sub-frame rails 30.
The auxiliary frame 100 can be formed by welding a circular section, a kidney-shaped section and a rectangular section profile, and a die is not needed, so that the die cost is greatly saved, and the manufacturing cost of the auxiliary frame 100 is further reduced. The subframe 100 may include: the first and second cross members 10 and 20 are spaced apart along a first direction of the sub-frame 100, the first direction of the sub-frame 100 being the X direction in fig. 1, and the first and second cross members 10 and 20 are spaced apart along the first direction. Subframe 100 may have a plurality of subframe rails 30, for example: the number of sub-frames 100 may be two, three, four, or the like, but the present invention is not limited thereto, and the number of sub-frames 100 may be other, as long as the sub-frames 100 have a plurality of sub-frame rails 30. The present application describes an example in which subframe 100 has two subframe rails 30.
The X direction as shown in fig. 1 may be a first direction, the Y direction is a second direction, and the first direction and the second direction are perpendicular. The plurality of sub-frame rails 30 extend along a first direction, the plurality of sub-frame rails 30 are arranged along a second direction of the sub-frame 100, the plurality of sub-frame rails 30 are connected between the first cross member 10 and the second cross member 20, and the first direction is perpendicular to the second direction, and it should be noted that the first direction refers to a longitudinal direction of the vehicle, and the second direction refers to a width direction of the vehicle.
Specifically, one end of the sub-frame rail 30 is connected to the first cross member 10, and the other end of the sub-frame rail 30 is connected to the second cross member 20, for example: the sub-frame rail 30 may be welded to the first and second cross members 10, 20, or the sub-frame rail 30 may be bolted to the first and second cross members 10, 20, but the present invention is not limited thereto, and the sub-frame rail 30 may be connected to the first and second cross members 10, 20 in other manners, as long as a plurality of sub-frame rails 30 are connected between the first and second cross members 10, 20. Therefore, the plurality of auxiliary frame longitudinal beams 30 are connected between the first cross beam 10 and the second cross beam 20, so that a frame structure is formed among the auxiliary frame longitudinal beams 30, the first cross beam 10 and the second cross beam 20, and the structural rigidity of the auxiliary frame 100 can be further improved, so that the safety performance of the vehicle is further improved.
The outer side walls of the sub-frame rails 30 located outermost in the second direction are each connected with a control arm mount 32, such as: the sub-frame rails 30 and the control arm mounting frame 32 may be welded or bolted, but the present invention is not limited thereto, and the sub-frame rails 30 and the control arm mounting frame 32 may be connected in other manners, as long as each sub-frame rail 30 is connected with the control arm mounting frame 32, so that the fatigue load of the control arm mounting frame 32 can be better dispersed to the sub-frame rail 30.
Third beam 60, third beam 60 may be located between first beam 10 and second beam 20 in the first direction, for example: the third beam 60 is located at an intermediate position of the first and second beams 10 and 20, or the third beam 60 is located between the first and second beams 10 and 20 closer to the first beam 10, or the third beam 60 is located between the first and second beams 10 and 20 closer to the second beam 20, but the present invention is not limited thereto, and the third beam 60 may be located at other positions between the first and second beams 10 and 20 as long as the third beam 60 is located between the first and second beams 10 and 20.
The third cross member 60 is connected to a plurality of sub-frame rails 30. The both ends along the second direction third crossbeam 60 correspond the setting with the control arm mounting bracket 32 of corresponding sub vehicle frame longeron 30 respectively, so set up, the third crossbeam 60 can play the supporting role to the control arm mounting bracket 32 of corresponding sub vehicle frame longeron 30, the lateral bracing effect of third crossbeam 60 can promote the rigidity of control arm mounting bracket 32, reduce road noise and pass through control arm mounting bracket 32 and transmit to passenger cabin, thereby reduce vehicle running noise, and then promote vehicle riding comfort, and, the fatigue load that can be convenient for control arm mounting bracket 32 can be better disperses on the third crossbeam 60, and then the fatigue load that is convenient for control arm mounting bracket 32 can be better disperses on whole sub vehicle frame 100, thereby promote the fatigue durability of control arm mounting bracket 32.
According to the auxiliary frame 100 of the vehicle in the embodiment of the invention, the plurality of auxiliary frame longitudinal beams 30 are connected between the first cross beam 10 and the second cross beam 20, and the third cross beam 60 and the plurality of auxiliary frame longitudinal beams 30 are connected, so that the fatigue strength and rigidity of the auxiliary frame 100 can be improved, the two ends of the third cross beam 60 along the second direction are respectively arranged corresponding to the control arm mounting frames 32 of the corresponding auxiliary frame longitudinal beams 30, the third cross beam 60 can play a supporting role on the control arm mounting frames 32 of the corresponding auxiliary frame longitudinal beams 30, the lateral supporting role of the third cross beam 60 can improve the rigidity of the control arm mounting frames 32, the road noise is reduced, and the road noise is transmitted to the passenger cabin through the control arm mounting frames 32, so that the vehicle running noise is reduced, the riding comfort of the vehicle is improved, the fatigue load of the control arm mounting frames 32 can be better dispersed to the auxiliary frame 100, and the fatigue durability of the auxiliary frame 100 is further improved.
In some embodiments according to the present invention, as shown in fig. 1, both ends of the third beam 60 are respectively disposed corresponding to the rear ends of the respective control arm mounts 32. The end of the third beam 60 corresponds to the rear end of the corresponding control arm mounting frame 32 along the second direction, the first direction is the front-rear direction of the auxiliary frame 100, and the third beam 60 can reliably support the control arm mounting frame 32, so that the rigidity of the control arm mounting frame 32 can be further improved, road noise is further reduced, and the road noise is transmitted to the passenger cabin through the control arm mounting frame 32, so that vehicle driving noise is further reduced, and vehicle riding comfort is further improved.
In some embodiments according to the present invention, as shown in fig. 1, the subframe 100 of the vehicle may further include: the suspension mount 61, the suspension mount 61 is fixedly provided to the third cross member 60.
Wherein, suspension mounting bracket 61 is fixed in third crossbeam 60, for example: the suspension mount 61 may be welded to the third beam 60, or the suspension mount 61 may be bolted to the third beam 60, but the present invention is not limited thereto, and the suspension mount 61 may be connected to the third beam 60 in other manners, as long as the suspension mount 61 is fixed to the third beam 60. Specifically, the suspension mounting frame 61 may be a "table" shaped mounting frame, the upper end of the suspension mounting frame 61 may extend to two sides of the third beam 60 to form an "eight" shape, which may better support the structural rigidity of the suspension mounting frame 61, and may also disperse the load of the vehicle powertrain 200 to two sides of the third beam 60, and the lower end of the suspension mounting frame 61 may be a closed structure, which may further improve the support rigidity of the suspension mounting frame 61.
From this, suspension mounting bracket 61 sets firmly in third crossbeam 60 to make third crossbeam 60 can provide the mounting point for the suspension of the power assembly 200 of vehicle, can also disperse the load of the power assembly 200 of vehicle, also can promote the support rigidity of suspension mounting bracket 61, and then promote the security performance of vehicle.
In some embodiments according to the present invention, as shown in fig. 1, the suspension mount 61 may be provided at a central position of the third beam 60. The suspension mounting frame 61 can be arranged at the middle position of the third cross beam 60, so that the load of the power assembly 200 of the vehicle can be uniformly dispersed on the third cross beam 60, the supporting rigidity of the suspension mounting frame 61 can be improved, and the safety performance of the vehicle is further improved.
In some embodiments according to the present invention, as shown in fig. 1, the suspension mount 61 may include: the first mounting portion 611 and the second mounting portion 612, the first mounting portion 611 and the second mounting portion 612 are opposite and spaced apart along the second direction, the first mounting portion 611 and the second mounting portion 612 are provided with first mounting holes 613, and the first mounting portion 611 and/or the second mounting portion 612 are fixedly provided with annular mounting structures 614, and the inner peripheral wall of each mounting structure 614 is provided with internal threads and corresponds to the corresponding first mounting hole 613.
Wherein the suspension mount 61 may include: the first mounting part 611 and the second mounting part 612 may be disposed opposite to and spaced apart from each other in the second direction, and the first mounting part 611 and the second mounting part 612 may have the same shape and size, and each of the first mounting part 611 and the second mounting part 612 may be provided with a first mounting hole 613, and the first mounting hole 613 on the first mounting part 611 and the first mounting hole 613 on the second mounting part 612 may be disposed correspondingly, and further, a fastener may be provided to pass through the first mounting hole 613 on the first mounting part 611 and the first mounting hole 613 on the second mounting part 612 to mount the suspension.
The first mounting portion 611 and/or the second mounting portion 612 are/is fixedly provided with an annular assembly structure 614, specifically, the first mounting portion 611 and the second mounting portion 612 are both fixedly provided with an annular assembly structure 614, either the first mounting portion 611 is fixedly provided with an annular mounting structure 614, or the second mounting portion 612 is fixedly provided with an annular mounting structure 614, and the annular mounting structure 614 is fixedly provided with both the first mounting portion 611 and the second mounting portion 612.
The annular assembly structure 614 may be an assembly structure 614 such as a nut or an annular metal sheet, but the present invention is not limited thereto, the annular assembly structure 614 may be other assembly structures 614, and the first mounting portion 611, the second mounting portion 612 and the annular assembly structure 614 may be welded or the first mounting portion 611, the second mounting portion 612 and the annular assembly structure 614 may be integrally formed, but the present invention is not limited thereto, and the first mounting portion 611 and the second mounting portion 612 may be connected with the annular assembly structure 614 by other means, so long as the annular assembly structure 614 is fixedly provided to the first mounting portion 611 and the second mounting portion 612.
The inner peripheral wall of the mounting structure 614 may have an internal thread, and the mounting structure 614 corresponds to the corresponding first mounting hole 613, so that a fastener sequentially passes through the first mounting hole 613 and the mounting structure 614 and mounts the suspension between the first mounting portion 611 and the second mounting portion 612, in other words, the suspension can be conveniently mounted on the suspension mounting frame 61 of the third beam 60, so that the third beam 60 can provide a mounting point for the suspension of the powertrain 200 of the vehicle, and can also disperse the load of the powertrain 200 of the vehicle, and can also promote the supporting rigidity of the suspension mounting frame 61, thereby promoting the safety performance of the vehicle.
In some embodiments according to the present invention, as shown in fig. 1 and 2, the suspension mount 61 may further include: a connection portion 615, the connection portion 615 being connected between the first mounting portion 611 and the second mounting portion 612, and the connection portion 615 being disposed near a lower end of the first mounting portion 611 and a lower end of the second mounting portion 612.
Wherein the connection portion 615 is connected between the first mounting portion 611 and the second mounting portion 612, and the connection portion 615 is disposed near a lower end of the first mounting portion 611 and a lower end of the second mounting portion 612, for example: the connection portion 615 is connected to both the lower end of the first mounting portion 611 and the lower end of the second mounting portion 612, and the connection portion 615 may be welded to both the lower end of the first mounting portion 611 and the lower end of the second mounting portion 612, or the connection portion 615 may be integrally formed with the lower end of the first mounting portion 611 and the lower end of the second mounting portion 612, but the present invention is not limited thereto, and the connection portion 615 may be connected to the lower end of the first mounting portion 611 and the lower end of the second mounting portion 612 by other means, so long as the connection portion 615 is connected between the first mounting portion 611 and the second mounting portion 612.
Thereby, the connection portion 615 is connected between the first mounting portion 611 and the second mounting portion 612, so that the lower end of the suspension mount 61 is of a closed structure, thereby further improving the supporting rigidity of the suspension mount 61 and further improving the safety performance of the subframe 100.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the upper end of the first mounting part 611 and/or the upper end of the second mounting part 612 may have a bent part 616, the bent part 616 is connected with the third beam 60, and the bent part 616 is bent toward the outside of the third beam 60 in the second direction.
The upper end of the first mounting portion 611 and/or the upper end of the second mounting portion 612 may have a bending portion 616, specifically, the upper end of the first mounting portion 611 and the upper end of the second mounting portion 612 may each have a bending portion 616, or the upper end of the first mounting portion 611 may have a bending portion 616, or the upper end of the second mounting portion 612 may have a bending portion 616, which is described herein by taking the upper end of the first mounting portion 611 and the upper end of the second mounting portion 612 each have a bending portion 616 as an example, where the bending portion 616 is connected to the third beam 60, for example: the bending portion 616 and the third beam 60 may be welded or the bending portion 616 and the third beam 60 may be bolted, but the present invention is not limited thereto, and the bending portion 616 and the third beam 60 may be connected in other manners, as long as the bending portion 616 and the third beam 60 are connected.
And along the outside bending of second direction kink 616 towards third crossbeam 60, so set up, can make the upper end of suspension mounting bracket 61 extend into "eight" shape to third crossbeam 60 both sides, support suspension mounting bracket 61 that can be better is favorable to dispersing the load of the power assembly 200 of vehicle to third crossbeam 60 both sides, can further promote the support rigidity of suspension mounting bracket 61.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the third beam 60 may be configured in an arc-shaped structure, with the third beam 60 protruding toward the second beam 20 in the first direction.
The third cross member 60 may be configured as an arc structure, and the third cross member 60 protrudes toward the second cross member 20 along the first direction, specifically, the third cross member 60 may be configured as a "C" shape or a substantially "C" shape, and the cross section of the third cross member 60 may be oblong, so that the rigidity of the third cross member 60 in the height direction of the vehicle can be improved without increasing the weight of the third cross member 60, thereby improving the rigidity of the subframe 100, and further improving the safety performance of the vehicle.
In some embodiments according to the present invention, as shown in fig. 1 and 2, the third beam 60 may include: the first and third cross members 62, 63 and 64, respectively, the second cross member 63 being connected between the first and third cross members 62, 64, the second cross member 63 being configured in an arcuate configuration protruding toward the second cross member 20, the first and third cross members 62, 64 being connected with the respective sub-frame rails 30.
Wherein, the third beam 60 may include: the first beam body 62, the second beam body 63 and the third beam body 64, the second beam body 63 is connected between the first beam body 62 and the third beam body 64, i.e. both ends of the second beam body 63 are respectively connected with the first beam body 62 and the third beam body 64, for example: the second beam body 63 and the first beam body 62 and the third beam body 64 may be welded, or the second beam body 63, the first beam body 62 and the third beam body 64 may be integrally formed, but the present invention is not limited thereto, and the second beam body 63 and the first beam body 62 and the third beam body 64 may be connected by other means, so long as the second beam body 63 is connected between the first beam body 62 and the third beam body 64.
The first and third cross member bodies 62, 64 are each connected to a respective sub-frame rail 30, for example: the first and third cross members 62, 64 may be welded to the respective sub-frame rails 30, or the first and third cross members 62, 64 may be bolted to the respective sub-frame rails 30, but the invention is not limited thereto, as long as the first and third cross members 62, 64 are connected to the respective sub-frame rails 30 in other manners.
The second beam body 63 is constructed in an arc-shaped structure protruding toward the second beam 20, and in particular, the second beam body 63 may be constructed in a "C" shape or a substantially "C" shape, and the cross section of the second beam body 63 may be oblong, so that it is possible to improve the rigidity of the third beam 60 in the height direction of the vehicle without increasing the weight of the third beam 60, thereby improving the rigidity of the subframe 100, and thus the safety performance of the vehicle.
According to some embodiments of the present invention, as shown in fig. 1 to 3, the height dimension of the second beam body 63 in the third direction of the subframe 100 may be H1, and the width dimension of the second beam body 63 in the first direction of the subframe 100 is H2, satisfying the relationship: h2 is less than H1, wherein the first direction, the second direction and the third direction are perpendicular to each other.
Wherein, the Z direction as shown in fig. 3 may be a third direction, the third direction is a height direction of the vehicle, a height dimension of the second beam body 63 along the third direction of the subframe 100 may be H1, and a width dimension of the second beam body 63 along the first direction of the subframe 100 is H2, satisfying the relationship: h2 < H1, wherein, first direction, second direction and third direction mutually perpendicular, so set up, can promote the rigidity of third crossbeam 60 in the direction of height of vehicle when not increasing the weight of third crossbeam 60 to promote the rigidity of sub vehicle frame 100, and then promote the security performance of vehicle.
In some embodiments according to the invention, 70 mm.ltoreq.H2.ltoreq.90 mm.
Wherein, the height dimension H1 of the second beam main body 63 in the third direction of the subframe 100 may be any value between 70 mm.ltoreq.H2.ltoreq.90 mm, for example: h1 may be a value of 70mm, 70.1mm, 71mm, 72mm, 80mm, 90mm, etc., but the present invention is not limited thereto, and H1 may be another value of 70 mm.ltoreq.H2.ltoreq.90 mm, as long as H1 is a value of 70 mm.ltoreq.H2.ltoreq.90 mm. Thus, the height dimension H1 of the second cross member main body 63 in the third direction of the sub-frame 100 is 70 mm.ltoreq.H2.ltoreq.90 mm, and the rigidity of the third cross member 60 in the height direction of the vehicle can be improved without increasing the weight of the third cross member 60, thereby improving the rigidity of the sub-frame 100 and further improving the safety performance of the vehicle.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the first beam body 62 and/or the third beam body 64 are flat structures.
The first beam body 62 and/or the third beam body 64 are/is in a flat structure, specifically, the first beam body 62 and the third beam body 64 may be in flat structures, or the first beam body 62 is in a flat structure, or the third beam body 64 is in a flat structure, which is described in this application by taking the first beam body 62 and the third beam body 64 as examples. Thus, by providing each of the first and third cross member bodies 62, 64 in a flat configuration, the first and third cross member bodies 62, 64 can be connected to the corresponding sub-frame rail 30, respectively, conveniently. Specifically, the joints of the first beam main body 62, the third beam main body 64 and the corresponding subframe rails 30 are respectively provided corresponding to the corresponding control arm mounting frames 32, so that the rigidity of the control arm mounting frames 32 can be improved, the noise transmission of the mounting points of the control arm mounting frames 32 is reduced, and the control arm mounting frames 32 can better disperse the fatigue load onto the subframe 100 through the third beam 60, so that the fatigue durability of the subframe 100 is improved.
In accordance with some embodiments of the present invention, as shown in fig. 1-3, the orthographic projection of the third cross member 60 is located on the rear side of the orthographic projection of the vehicle's powertrain, in a third direction of the subframe 100.
The orthographic projection of the third cross member 60 may be located at a rear side of the orthographic projection of the powertrain 200 of the vehicle along the third direction of the subframe 100, that is, the third cross member 60 is located at a rear end of the powertrain 200 of the vehicle, so that the subframe 100 can provide a mounting point for suspension of the powertrain 200 of the vehicle, and further, loads of the powertrain 200 of the vehicle are dispersed to two sides of the third cross member 60, thereby further improving supporting rigidity of the subframe 100.
A vehicle body assembly of a vehicle according to an embodiment of the invention includes: a body 40, the body 40 having a body side member 41; the auxiliary frame 100 of the embodiment is further included, and the auxiliary frame 100 is fixedly arranged on the vehicle body longitudinal beam 41 and located below the vehicle body longitudinal beam 41, so that the fatigue strength and rigidity of the auxiliary frame 100 can be improved, and the safety performance of a vehicle is further improved.
According to the vehicle provided by the embodiment of the invention, the vehicle body assembly of the vehicle comprises the embodiment, so that the fatigue strength and rigidity of the auxiliary frame 100 can be improved, and the safety performance of the vehicle can be further improved.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. A subframe for a vehicle, comprising:
the first cross beam and the second cross beam are arranged at intervals along the first direction of the auxiliary frame;
the auxiliary frame longitudinal beams are arranged along a second direction of the auxiliary frame, the auxiliary frame longitudinal beams are connected between the first cross beam and the second cross beam, the first direction is perpendicular to the second direction, and the auxiliary frame longitudinal beam located at the outermost side along the second direction is connected with a control arm mounting frame;
the third cross beam is located between the first cross beam and the second cross beam along the first direction, the third cross beam and the plurality of auxiliary frame longitudinal beams are connected, and the two ends of the third cross beam are respectively and correspondingly arranged with the control arm mounting frames of the corresponding auxiliary frame longitudinal beams along the second direction.
2. The subframe of claim 1 wherein both ends of said third cross member are disposed in correspondence with the rear ends of the respective control arm mounts.
3. The subframe of a vehicle according to claim 1, further comprising: the suspension installation frame is fixedly arranged on the third cross beam.
4. A subframe for a vehicle according to claim 3, wherein the suspension mount is provided at a central position of the third cross member.
5. A subframe of a vehicle according to claim 3, wherein the suspension mount comprises: the first installation department and second installation department, first installation department with the second installation department is followed the second direction is relative and spaced apart, first installation department with the second installation department all is equipped with first mounting hole, just first installation department and/or the second installation department has set firmly annular assembly structure, assembly structure's inner peripheral wall has the internal thread and corresponds with corresponding first mounting hole.
6. The subframe of claim 5 wherein the suspension mount further comprises: the connecting part is connected between the first installation part and the second installation part, and the connecting part is close to the lower end of the first installation part and the lower end of the second installation part.
7. The subframe of claim 5 wherein the upper end of the first mounting portion and/or the upper end of the second mounting portion has a bent portion that is connected to the third cross member and is bent in the second direction toward the outside of the third cross member.
8. The subframe of any one of claims 1-7 wherein the third cross member is configured as an arcuate structure, the third cross member protruding toward the second cross member in the first direction.
9. The subframe of claim 8 wherein said third cross member comprises: the auxiliary frame longitudinal beam comprises a first beam main body, a second beam main body and a third beam main body, wherein the second beam main body is connected between the first beam main body and the third beam main body, the second beam main body is configured to face to the arc-shaped structure protruding from the second beam, and the first beam main body and the third beam main body are respectively connected with the corresponding auxiliary frame longitudinal beam.
10. The subframe of claim 9 wherein the height dimension of the second cross member body in the third direction of the subframe is H1 and the width dimension of the second cross member body in the first direction of the subframe is H2 satisfying the relationship: h2 < H1, wherein the first direction, the second direction and the third direction are perpendicular to each other.
11. The subframe of claim 10 wherein 70 mm.ltoreq.h1.ltoreq.90 mm.
12. The subframe of claim 10 wherein the first and/or third cross member bodies are flat structures.
13. The subframe of any one of claims 1-7 wherein, in a third direction of the subframe, an orthographic projection of the third cross member is located rearward of an orthographic projection of a powertrain of the vehicle.
14. A body assembly for a vehicle, comprising:
a body having a body rail;
a subframe fixedly disposed below and beneath the body rail, the subframe being a subframe of a vehicle according to any one of claims 1-13.
15. A vehicle comprising the vehicle body assembly of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311382113.8A CN117549970A (en) | 2023-10-23 | 2023-10-23 | Sub-frame of vehicle, body assembly of vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311382113.8A CN117549970A (en) | 2023-10-23 | 2023-10-23 | Sub-frame of vehicle, body assembly of vehicle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117549970A true CN117549970A (en) | 2024-02-13 |
Family
ID=89810024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311382113.8A Pending CN117549970A (en) | 2023-10-23 | 2023-10-23 | Sub-frame of vehicle, body assembly of vehicle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117549970A (en) |
-
2023
- 2023-10-23 CN CN202311382113.8A patent/CN117549970A/en active Pending
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