CN117227841A - Sub-frame of vehicle, body assembly of vehicle and vehicle - Google Patents

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: a first beam and a second beam; the plurality of auxiliary frame longitudinal beams are connected with the first cross beam and the second cross beam; the third cross beam is positioned between the first cross beam and the second cross beam and is connected with the plurality of auxiliary frame longitudinal beams; the support frame is located between third crossbeam and the second crossbeam, and support frame and third crossbeam fixed connection. From this, through first crossbeam, second crossbeam, third crossbeam and sub vehicle frame longeron cooperation assembly, make the sub vehicle frame form frame structure, can promote the fatigue strength and the rigidity of sub vehicle frame, and support frame and third crossbeam fixed connection, the support frame can support the third crossbeam, promote the longitudinal rigidity of third crossbeam in the fore-and-aft direction of vehicle, and then promoted the rigidity and the intensity of sub vehicle frame in the fore-and-aft direction of vehicle, can effectively restrain power assembly and transmit vibration and noise to passenger cabin, thereby promote passenger's riding comfort level.

Description

Sub-frame of vehicle, body assembly of vehicle and vehicle

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, a front auxiliary frame of an existing vehicle is provided with a suspension, and a power assembly of the vehicle is arranged on the front auxiliary frame through the suspension, however, the rigidity and the structural strength of the existing front auxiliary frame are insufficient, so that the power assembly transmits vibration and noise to a passenger cabin, and the riding comfort of passengers is greatly 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 rigidity and strength of the subframe in a front-rear direction of the vehicle, and can effectively suppress transmission of vibration and noise to a passenger compartment by a powertrain, thereby improving riding comfort of passengers.

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, are connected with the first cross beam and the second cross beam, and are perpendicular to the first direction and the second direction; the third cross beam is positioned between the first cross beam and the second cross beam along the first direction, and is connected with a plurality of auxiliary frame longitudinal beams; the support frame is located along the first direction between the third beam and the second beam, and the support frame with third beam fixed connection.

According to the auxiliary frame of the vehicle, the first cross beam, the second cross beam, the third cross beam and the auxiliary frame longitudinal beams are assembled in a matched mode, so that the auxiliary frame forms a frame structure, fatigue strength and rigidity of the auxiliary frame can be improved, the support frame is fixedly connected with the third cross beam, the support frame can support the third cross beam, longitudinal rigidity of the third cross beam in the front-back direction of the vehicle is improved, rigidity and strength of the auxiliary frame in the front-back direction of the vehicle are improved, vibration and noise transmitted to a passenger cabin by the power assembly can be effectively restrained, and accordingly riding comfort of passengers is improved.

According to some embodiments of the invention, the support frame is fixedly connected to the second cross member.

According to some embodiments of the invention, in the second direction, the outermost subframe rail is fixedly connected to the corresponding support frame.

According to some embodiments of the invention, the number of the auxiliary frame longitudinal beams is two, and the support frame is connected between each auxiliary frame longitudinal beam and the third cross beam.

According to some embodiments of the invention, the support bracket is disposed proximate an end of the third cross beam in the second direction.

According to some embodiments of the invention, the cross-sectional shape of the support frame is triangular.

According to some embodiments of the invention, the support bracket has diverter mounting holes.

According to some embodiments of the invention, the support comprises: the auxiliary frame comprises a first support frame plate body and a second support frame plate body, wherein the first support frame plate body and the second support frame plate body are arranged and connected along the third direction of the auxiliary frame, the first support frame plate body and the second support frame plate body jointly define a cavity structure, and the first direction, the second direction and the third direction are mutually perpendicular.

According to some embodiments of the invention, the support frame has opposite first and second side connection ends, the first side connection end being fixedly connected to the third beam and the second side connection end being fixedly connected to the second beam.

According to some embodiments of the invention, the support frame further has a third side connecting end, the third side connecting end is located between the first side connecting end and the second side connecting end, and the third side connecting end is adjacent to both the first side connecting end and the second side connecting end, and along the second direction, an inner side surface of the subframe rail located at the outermost side is fixedly connected with the third side connecting end of the corresponding support frame.

According to some embodiments of the invention, in the second direction, a stabilizer bar mounting bracket is fixedly arranged on the outermost side of the sub-frame rail, and the stabilizer bar mounting bracket is fixedly connected with the corresponding supporting frame.

According to some embodiments of the present invention, the length dimension of the third beam is L1, and the connection length between the support frame and the third beam along the length direction of the third beam is L2, which satisfies the relationship: 0.1L1L 2 is less than or equal to 0.3L1.

According to some embodiments of the present invention, control arm mounting frames are connected to the outermost sub-frame rails, and two ends of the third cross member along the second direction are respectively disposed corresponding to the control arm mounting frames of the corresponding sub-frame rails.

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 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.

The vehicle body assembly of the vehicle comprises the vehicle body main body, wherein the vehicle body main body is provided with a vehicle body longitudinal beam; the automobile body subassembly still includes foretell auxiliary frame, the auxiliary frame set firmly in automobile body longeron and be located automobile body longeron below.

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 a subframe and a side member of a vehicle body according to an embodiment of the present application.

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 support frame 70; diverter mounting holes 71; a first support frame plate 72; a second support frame plate 73; a first side connection end 74; a second side connection end 75; a third side connection end 76;

a stabilizer bar mounting bracket 80;

a powertrain 200.

Detailed Description

Embodiments of the present application 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 application.

A subframe 100 of a vehicle, a body assembly of the vehicle, and the vehicle according to an embodiment of the present application, the subframe 100 may be a front subframe of the vehicle, and the present application is described by taking the subframe 100 as a front subframe as an example.

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; a plurality of sub-frame rails 30, the plurality of sub-frame rails 30 being arranged along a second direction of the sub-frame 100, the plurality of sub-frame rails 30 each being connected to the first cross member 10, the second cross member 20, the first direction being perpendicular to the second direction; a third cross member 60, the third cross member 60 being located between the first cross member 10 and the second cross member 20 in the first direction, the third cross member 60 being connected to each of the plurality of sub-frame rails 30; the support frame 70 is located between the third beam 60 and the second beam 20 along the first direction, and the support frame 70 is fixedly connected with the third beam 60.

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 subframe 100 may have two, three, four, etc. number of subframe rails 30, but the invention is not limited thereto, and the subframe 100 may have other number of subframe rails 30 as long as the subframe 100 has a plurality of 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 longitudinal beams 30 extend along a first direction, the plurality of sub-frame longitudinal beams 30 are arranged along a second direction of the sub-frame 100, two adjacent sub-frame longitudinal beams 30 are arranged at intervals along the second direction, each sub-frame longitudinal beam 30 is connected with the first cross beam 10 and the second cross beam 20, it should be noted that the first direction refers to a length direction of the vehicle, the second direction refers to a width direction of the vehicle, and the first direction and the second direction are perpendicular.

Specifically, one end of subframe rail 30 may be connected to first cross member 10, and the other end of subframe rail 30 may be connected to 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 and strength of the auxiliary frame 100 can be further improved, so that the safety performance of the vehicle is further improved.

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 in the first direction.

The third cross member 60 is connected to each of the plurality of sub-frame rails 30, and the third cross member 60 extends in the second direction. The support frame 70 is located between the third beam 60 and the second beam 20 along the first direction, and the support frame 70 is fixedly connected to the third beam 60, for example: the support frame 70 and the third beam 60 may be welded or the support frame 70 and the third beam 60 may be bolted, but the present invention is not limited thereto, and the support frame 70 and the third beam 60 may be connected in other manners, so long as the support frame 70 is located between the third beam 60 and the second beam 20 along the first direction, and the support frame 70 is fixedly connected with the third beam 60.

Thus, the support frame 70 is fixedly connected with the third cross member 60, and can provide support for the third cross member 60 in the longitudinal direction (i.e., front-rear direction) of the vehicle, so as to improve the rigidity of the third cross member 60 in the longitudinal direction of the vehicle, and further improve the rigidity of the subframe 100 in the longitudinal direction of the vehicle. After the suspension mounting frame 61 is mounted on the subframe 100, the longitudinal rigidity of the suspension mounting frame 61 can be improved, the transmission of whistling sounds of the power assembly 200 of the vehicle in the length direction of the vehicle can be reduced, and the transmission of vibration and noise to the passenger compartment by the power assembly 200 can be effectively restrained, so that the riding comfort of passengers is improved.

According to the auxiliary frame 100 of the vehicle, the first cross beam 10, the second cross beam 20, the third cross beam 60 and the auxiliary frame longitudinal beam 30 are assembled in a matched mode, so that the auxiliary frame 100 forms a frame structure, fatigue strength and rigidity of the auxiliary frame 100 can be improved, the support frame 70 is fixedly connected with the third cross beam 60, the support frame 70 can support the third cross beam 60, longitudinal rigidity of the third cross beam 60 in the front-rear direction of the vehicle is improved, rigidity and strength of the auxiliary frame 100 in the front-rear direction of the vehicle are improved, vibration and noise transmitted to a passenger cabin by the power assembly 200 can be effectively restrained, and accordingly riding comfort of passengers is improved.

In some embodiments according to the present invention, as shown in fig. 1, the support frame 70 may be fixedly connected to the second beam 20.

Wherein, the support frame 70 may be fixedly connected with the second beam 20, for example: the support frame 70 and the second cross member 20 may be welded or the support frame 70 and the second cross member 20 may be bolted, but the present invention is not limited thereto, and the support frame and the second cross member 20 may be connected in other manners, so long as the support frame 70 is fixedly connected to the second cross member 20. Therefore, the support frame 70 is fixedly connected with the second cross beam 20, the support frame 70 is also fixedly connected with the third cross beam 60, namely, the support frame 70 is connected between the second cross beam 20 and the third cross beam 60, the support frame 70 can play a supporting role on the second cross beam 20 and the third cross beam 60, and the structural connection strength of the auxiliary frame 100 can be enhanced, so that the fatigue strength and the rigidity of the auxiliary frame 100 are improved.

In accordance with some embodiments of the present invention, as shown in FIG. 1, the outermost subframe rail 30 is fixedly coupled to a corresponding support bracket 70 in a second direction.

The support frame 70 may also be fixedly connected to the corresponding subframe rail 30, for example: the support frame 70 and the corresponding sub-frame rail 30 may be welded or the support frame 70 and the corresponding sub-frame rail 30 may be bolted, but the present invention is not limited thereto, and the support frame 70 and the corresponding sub-frame rail 30 may be connected in other manners, as long as the support frame 70 is fixedly connected with the corresponding sub-frame rail 30. The sub-frame rail 30 corresponding to the support frame 70 refers to a sub-frame rail 30 adjacent to and close to the support frame 70 in the second direction. Therefore, the support frame 70 is fixedly connected with the corresponding sub-frame longitudinal beam 30, and the support frame 70 is fixedly connected with the second cross beam 20 and the third cross beam 60, so that the structural connection strength and rigidity of the sub-frame 100 can be further enhanced, the phenomenon of stress concentration on the sub-frame 100 is avoided, and the fatigue strength of the sub-frame 100 is further improved.

In accordance with some embodiments of the present invention, as shown in FIG. 1, there may be two sub-frame rails 30, with a support frame 70 connected between each sub-frame rail 30 and the third cross member 60.

Wherein, sub frame longeron 30 can be two, all be connected with support frame 70 between every sub frame longeron 30 and third crossbeam 60, specifically, all can be connected with support frame 70 at the corner between every sub frame longeron 30, between third crossbeam 60 and between the second crossbeam 20, so set up, can provide the support for third crossbeam 60 in the length direction of vehicle, thereby promote the rigidity of third crossbeam 60 in the longitudinal direction of vehicle, and then promote the rigidity of sub frame 100 in the vehicle length direction, can also further strengthen the structural connection intensity of sub frame 100, avoid producing the phenomenon of stress concentration on sub frame 100, thereby further promote the fatigue strength of sub frame 100.

According to some embodiments of the invention, as shown in fig. 1, the support bracket 70 may be disposed proximate to an end of the third beam 60 in the second direction.

Along the second direction, the support frame 70 may be disposed near the end of the third beam 60, and the end of the third beam 60 is connected with the subframe rail 30, so that the support frame 70, the third beam 60, the second beam 20 and the corresponding subframe rail 30 can be connected at the same time, so that the support frame 70 is disposed at a reasonable position, the structural connection strength of the subframe 100 is further enhanced, the phenomenon of stress concentration on the subframe 100 is avoided, and the fatigue strength of the subframe 100 is further improved.

In some embodiments according to the present invention, as shown in fig. 1, the cross-sectional shape of the support frame 70 may be triangular.

The cross-sectional shape of the support frame 70 may be triangular, or the cross-sectional shape of the support frame 70 may be substantially triangular, and the cross-sectional shape of the support frame 70 taken along the XY plane may be triangular or substantially triangular, in other words, the cross-sectional shape of the support frame 70 taken along the horizontal plane may be triangular or substantially triangular. Specifically, two support frames 70 are arranged at intervals along the second direction, the two support frames 70 are respectively arranged at two ends of the third cross beam 60, the front end of each support frame 70 is welded to the third cross beam 60, the outer side edge of each support frame 70 is welded to the inner side wall of the corresponding auxiliary frame longitudinal beam 30, the rear end of each support frame 70 is welded to the second cross beam 20, the support frames 70 can provide support for the third cross beam 60 in the longitudinal direction of the vehicle by utilizing the principle of triangle stability, and the rigidity of the third cross beam 60 in the longitudinal direction of the vehicle is greatly improved, so that the rigidity of the auxiliary frame 100 in the longitudinal direction of the vehicle is improved.

In addition, the support frame 70 is simultaneously connected between the second cross member 20, the third cross member 60 and the sub-frame rail 30, so that the structural connection strength of the sub-frame 100 can be further enhanced, the phenomenon of stress concentration on the sub-frame 100 is avoided, and the fatigue strength of the sub-frame 100 is further improved.

According to some embodiments of the present invention, as shown in fig. 1, the support frame 70 has opposite first and second side connection ends 74 and 75, the first side connection end 74 is fixedly connected to the third beam 60, and the second side connection end 75 is fixedly connected to the second beam 20.

Wherein, the first side connecting end 74 and the second side connecting end 75 are disposed opposite along the first direction, and the first side connecting end 74 is fixedly connected to the third beam 60, for example: the first side connection end 74 and the third beam 60 may be welded or the first side connection end 74 and the third beam 60 may be bolted, but the present invention is not limited thereto, and the first side connection end 74 and the third beam 60 may be connected in other manners, as long as the first side connection end 74 is fixedly connected to the third beam 60. Thus, the first side connection end 74 is fixedly coupled to the third cross member 60, and is capable of providing support to the third cross member 60 in the fore-and-aft direction of the vehicle, thereby enhancing the longitudinal rigidity of the third cross member 60 in the fore-and-aft direction of the vehicle.

The second side connection end 75 is fixedly connected to the second beam 20, for example: the second side connection end 75 may be welded to the second cross member 20, or the second side connection end 75 may be bolted to the second cross member 20, but the present invention is not limited thereto, and the second side connection end 75 may be connected to the second cross member 20 in other manners, so long as the second side connection end 75 is fixedly connected to the second cross member 20. The support frame 70 is adapted to be mounted between the third cross member 60 and the second cross member 20 of the subframe 100 and to be connected between the third cross member 60 and the second cross member 20, so that the structural connection strength of the subframe 100 can be enhanced, stress concentration can be avoided, the fatigue strength of the subframe 100 can be improved, and the transmission of noise of the powertrain 200 of the vehicle in the front-rear direction of the vehicle can be reduced, thereby reducing the noise pollution of the vehicle.

According to some embodiments of the present invention, as shown in fig. 1, the support frame 70 further has a third side connection end 76, the third side connection end 76 is located between the first side connection end 74 and the second side connection end 75, and the third side connection end 76 is adjacent to both the first side connection end 74 and the second side connection end 75, and in the second direction, the inner side surface of the outermost subframe rail 30 is fixedly connected to the third side connection end 76 of the corresponding support frame 70.

The third side connection end 76 is located between the first side connection end 74 and the second side connection end 75, and the third side connection end 76 is adjacent to both the first side connection end 74 and the second side connection end 75.

The third side link 76 is fixedly coupled to the inner side of the outermost corresponding subframe rail 30, such as: the third side connection end 76 may be welded to the inner side surface of the corresponding sub-frame rail 30, or the third side connection end 76 may be bolted to the inner side surface of the corresponding sub-frame rail 30, but the present invention is not limited thereto, and the third side connection end 76 may be connected to the inner side surface of the corresponding sub-frame rail 30 in other manners, as long as the third side connection end 76 is fixedly connected to the inner side surface of the corresponding sub-frame rail 30 of the sub-frame 100. Therefore, the support frame 70 is connected between the third cross beam 60, the second cross beam 20 and the corresponding auxiliary frame longitudinal beam 30, the connection strength of the auxiliary frame 100 structure can be enhanced by utilizing the principle of triangle stability, and the phenomenon of stress concentration on the auxiliary frame 100 can be avoided, so that the stability and the fatigue strength of the auxiliary frame 100 are improved.

According to some embodiments of the present invention, as shown in fig. 1, a stabilizer bar mounting bracket 80 is fixedly disposed on the outermost sub-frame rail 30 along the second direction, and the stabilizer bar mounting bracket 80 is fixedly connected to the corresponding support bracket 70.

The outermost subframe rail 30 and the stabilizer bar mounting bracket 80 may be welded or bolted, but the present invention is not limited thereto, and the outermost subframe rail 30 and the stabilizer bar mounting bracket 80 may be connected by other means, as long as the stabilizer bar mounting bracket 80 is fixedly provided to the outermost subframe rail 30.

The stabilizer bar mounting brackets 80 are connected to the respective support frames 70, for example: the stabilizer bar mounting bracket 80 and the corresponding support frame 70 may be welded or the stabilizer bar mounting bracket 80 and the corresponding support frame 70 may be bolted, but the present invention is not limited thereto, and the stabilizer bar mounting bracket 80 and the corresponding support frame 70 may be connected in other manners, so long as the stabilizer bar mounting bracket 80 is connected to the corresponding support frame 70. The stabilizer bar mounting bracket 80 corresponding to the support frame 70 refers to a stabilizer bar mounting bracket 80 adjacent to and close to the support frame 70 along the second direction.

From this, through being connected stabilizer bar installing support 80 with corresponding support frame 70, stabilizer bar installing support 80 still is connected with corresponding sub-frame longeron 30, can strengthen the joint strength between stabilizer bar installing support 80, corresponding support frame 70, the corresponding sub-frame longeron 30, and then the load on the guide stabilizer bar installing support 80 disperses to sub-frame 100, thereby avoid producing stress concentration phenomenon on the stabilizer bar installing support 80, thereby promote the fatigue strength and the rigidity of sub-frame 100, and also can reduce the road noise and pass through stabilizer bar installing support 80 and transmit to passenger cabin, further promote vehicle riding comfort.

In accordance with some embodiments of the present invention, as shown in FIG. 1, the support bracket 70 may have diverter mounting holes 71.

The support frame 70 may have a diverter mounting hole 71, and the diverter mounting hole 71 may be located at a center position of the support frame 70, or the diverter mounting hole 71 may be located at a corner position of the support frame 70, but the present invention is not limited thereto, and the diverter mounting hole 71 may be located at other positions of the support frame 70, so long as the support frame 70 has the diverter mounting hole 71. Thus, the support bracket 70 has a diverter mounting hole 71 to facilitate mounting of the diverter.

In some embodiments according to the present invention, as shown in fig. 1-3, the support stand 70 may include: the first support frame plate 72 and the second support frame plate 73, the first support frame plate 72 and the second support frame plate 73 are arranged and connected along a third direction of the subframe 100, the first support frame plate 72 and the second support frame plate 73 together define a cavity structure, and the first direction, the second direction and the third direction are mutually perpendicular.

Wherein, as shown in fig. 3, the third direction may be a Z direction, in other words, the third direction may be a height direction of the vehicle, the first direction is a length direction of the vehicle, the second direction is a width direction of the vehicle, and the first direction, the second direction, and the third direction are perpendicular to each other.

The support frame 70 may include: the first support frame plate 72 and the second support frame plate 73, specifically, the first support frame plate 72 and the second support frame plate 73 may be made of two identical channel steel plates, so that the first support frame plate 72 and the second support frame plate 73 can jointly define a cavity structure, the first support frame plate 72 and the second support frame plate 73 are arranged and connected along a third direction of the subframe 100, the first support frame plate 72 and the second support frame plate 73 may be welded, or the first support frame plate 72 and the second support frame plate 73 may be bolted, but the invention is not limited thereto, and the first support frame plate 72 and the second support frame plate 73 may be connected in other manners, so long as the first support frame plate 72 and the second support frame plate 73 are arranged and connected along the third direction of the subframe 100. Therefore, the support frame 70 is arranged into a cavity structure with two plate bodies connected, the weight of the support frame 70 can be reduced, the weight of the auxiliary frame 100 is reduced, the manufacturing cost of the auxiliary frame 100 is further reduced, the stability and the strength of the support frame 70 can be improved, and the durability of the support frame 70 is further improved.

According to some embodiments of the present invention, as shown in fig. 1, the length dimension of the third beam 60 is L1, and the connection length between the support frame 70 and the third beam 60 along the length direction of the third beam 60 is L2, which satisfies the relationship: 0.1L1L 2 is less than or equal to 0.3L1.

Along the length direction of the third beam 60, the connection length between the support frame 70 and the third beam 60 is L2, where L2 may be the relationship: 0.1L1.ltoreq.L2.ltoreq. 0.3L1, for example: l2 may be a number such as 0.1L1, 0.11L1, 0.12L1, 0.15L1, 0.2l1, 0.3L1, etc., but the present invention is not limited thereto, and L2 may be a relational expression: 0.1L1.ltoreq.L2.ltoreq. 0.3L1, provided that the value of L2 satisfies the relationship: 0.1L1L 2 is less than or equal to 0.3L1. Thus, the value of L2 satisfies the relationship: 0.1L1L 2 is less than or equal to 0.3L1 and can enable the support frame 70 to be firmly connected with the third cross beam 60, so that the rigidity of the third cross beam 60 is improved, other structures cannot be influenced due to the fact that the volume of the support frame 70 is too large, the structural compactness of the auxiliary frame 100 is improved, and the manufacturing cost of the auxiliary frame 100 is reduced.

According to some embodiments of the present invention, as shown in fig. 1, the control arm mounting frames 32 may be connected to the outermost sub-frame members 30 along the second direction, and both 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 members 30.

Wherein the outermost subframe rails 30 may each have a control arm mount 32 attached thereto, 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. Thus, the fatigue load of control arm mount 32 may be better distributed to subframe rail 30.

The two ends along the third cross beam 60 in the second direction are respectively and correspondingly arranged with the control arm mounting frames 32 of the corresponding auxiliary frame longitudinal beams 30, so that the fatigue load of the control arm mounting frames 32 can be conveniently dispersed onto the third cross beam 60, and the fatigue load of the control arm mounting frames 32 can be conveniently dispersed onto the whole auxiliary frame 100, so that the fatigue durability of the control arm mounting frames 32 is improved. And, the third crossbeam 60 can play the supporting role to the control arm mounting bracket 32 of corresponding sub vehicle frame longeron 30, can promote the rigidity of control arm mounting bracket 32, reduces the road noise and passes through control arm mounting bracket 32 and pass through to passenger cabin transmission to reduce the vehicle noise that traveles, and then promote the vehicle and take the travelling comfort.

In some embodiments according to the present invention, as shown in fig. 1 and 2, 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 and the third beam 60 may be welded or the suspension mount 61 and the third beam 60 may be bolted, but the present invention is not limited thereto, and the suspension mount 61 and the third beam 60 may be connected in other manners as long as the suspension mount 61 is fixedly provided 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 and 2, 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 and 2, 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/is fixedly provided with the annular assembly structure 614, or the first mounting portion 611 is fixedly provided with the annular assembly structure 614, or the second mounting portion 612 is fixedly provided with the annular assembly structure 614.

The annular assembly structure 614 may be an assembly structure 614 such as a nut or an annular metal sheet, but the present application 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 application 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. 1-3, 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 application, 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, and the present application is described by taking the example that 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, and 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 application 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, the structural rigidity of 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 application, 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 may have a flat structure, specifically, the first beam body 62 and the third beam body 64 may have flat structures, or the first beam body 62 may have a flat structure, or the third beam body 64 may have a flat structure, which is described in the present application by taking the flat structures of the first beam body 62 and the third beam body 64 as an example. 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 invention, as shown in FIG. 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.

The vehicle body assembly of the vehicle according to the embodiment of the invention includes the above-described vehicle body main body 40, the vehicle body main body 40 having the vehicle 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 (24)

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, are connected with the first cross beam and the second cross beam, and are perpendicular to the first direction and the second direction;

the third cross beam is positioned between the first cross beam and the second cross beam along the first direction, and is connected with a plurality of auxiliary frame longitudinal beams;

the support frame is located along the first direction between the third beam and the second beam, and the support frame with third beam fixed connection.

2. The subframe of claim 1 wherein said support bracket is fixedly connected to said second cross member.

3. The subframe of claim 1 wherein said outermost subframe rail is fixedly connected to a corresponding said support frame in said second direction.

4. A subframe for a vehicle according to claim 3 wherein there are two subframe rails, each of said subframe rails and said third cross member being connected to said support frame.

5. The subframe of claim 1 wherein said support bracket is disposed adjacent an end of said third cross member in said second direction.

6. The subframe of claim 1 wherein said support frame has a triangular cross-sectional shape.

7. The subframe of claim 1 wherein said support bracket has a diverter mounting hole.

8. The subframe of a vehicle according to claim 1, wherein the support frame comprises: the auxiliary frame comprises a first support frame plate body and a second support frame plate body, wherein the first support frame plate body and the second support frame plate body are arranged and connected along the third direction of the auxiliary frame, the first support frame plate body and the second support frame plate body jointly define a cavity structure, and the first direction, the second direction and the third direction are mutually perpendicular.

9. The subframe of claim 1 wherein said support frame has opposed first and second side connection ends, said first side connection end being fixedly connected to said third cross member and said second side connection end being fixedly connected to said second cross member.

10. The subframe of claim 9 wherein said support frame further has a third side link positioned between said first side link and said second side link, said third side link being contiguous with both said first side link and said second side link, and wherein said inner side of said outermost subframe rail is fixedly connected to said third side link of said corresponding support frame in said second direction.

11. The subframe of claim 1 wherein said subframe rail outermost in said second direction is fixedly secured with a stabilizer bar mounting bracket fixedly connected to a corresponding said support frame.

12. The subframe of claim 1 wherein the length dimension of the third cross member is L1, and the length of the connection between the support frame and the third cross member is L2 along the length direction of the third cross member, satisfying the relationship: 0.1L1L 2 is less than or equal to 0.3L1.

13. The subframe of any one of claims 1 to 12 wherein control arm mounts are connected to each of the outermost subframe rails, and wherein the ends of the third cross member in the second direction are respectively disposed in correspondence with the control arm mounts of the respective subframe rails.

14. The subframe of a vehicle according to any one of claims 1 to 12, further comprising: the suspension installation frame is fixedly arranged on the third cross beam.

15. The subframe of claim 14 wherein said suspension mount is disposed at a mid-position of said third cross member.

16. The subframe of claim 14 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.

17. The subframe of claim 16 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.

18. The subframe of claim 16 wherein the upper end of the first mounting portion and/or 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.

19. The subframe of any one of claims 1-12 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.

20. The subframe of claim 19 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.

21. The subframe of claim 20 wherein the first and/or third cross member bodies are flat structures.

22. The subframe of any one of claims 1-12 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.

23. 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 1-22.

24. A vehicle comprising the vehicle body assembly of claim 23.