CN217396627U - Rear auxiliary frame mounting seat and vehicle - Google Patents

Abstract

The utility model discloses a back sub vehicle frame mount pad and vehicle, back sub vehicle frame includes: the upper portion of reinforcement is fixed connection longeron and crossbeam respectively, and the lower part of reinforcement has the installation position that is used for installing back sub vehicle frame, and the front side of reinforcement is formed with a plurality of domes that connect gradually, and two adjacent domes's aspect ratio is different. According to the utility model discloses a back sub vehicle frame, through the upper portion difference fixed connection longeron and the crossbeam with the reinforcement, lower part setting at the reinforcement is used for installing the installation position of back sub vehicle frame, form a plurality of domes that connect gradually in the front side of reinforcement, and make two adjacent domes's aspect ratio different, make the intensity that the installation position can borrow crossbeam and longeron simultaneously improve the intensity of self, can effectively keep away frequently simultaneously, reduce the vibration that the road surface transmission was come, avoid producing resonance, thereby can improve the NVH performance of vehicle.

Description

Rear auxiliary frame mounting seat and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to a back sub vehicle frame mount pad and vehicle are related to.

Background

With the improvement of the requirements of people on the performance of vehicles, the requirements of consumers on the safety performance of the vehicles and the noise level in the vehicles are higher and higher. The excitation source of the noise in the vehicle mainly comes from a power assembly and a road surface, the excitation of the road surface becomes the largest source for the excitation of a rear suspension of the vehicle, and the excitation force of tires on the road surface is transmitted to a vehicle body installation position through a suspension system to cause the vibration of a vehicle body plate, so that the noise is radiated in the vehicle. In the prior art, the mounting position of the mounting seat of the rear auxiliary frame has low structural strength, and meanwhile, the mounting position is not beneficial to inhibiting the transmission of road excitation, so that the noise level in the vehicle is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a back sub vehicle frame mount pad and vehicle, back sub vehicle frame mount pad can improve the NVH (Noise, Vibration, Harshmess) performance of vehicle.

Another object of the present invention is to provide a vehicle having the above rear subframe mounting seat.

According to the utility model discloses back sub vehicle frame mount pad, include: the reinforcing piece, the upper portion difference fixed connection longeron and the crossbeam of reinforcing piece, the lower part of reinforcing piece has the installation position that is used for installing back sub vehicle frame, the front side of reinforcing piece is formed with a plurality of domes that connect gradually, adjacent two domes's aspect ratio is different.

According to the utility model discloses back sub vehicle frame mount pad, through the upper portion difference fixed connection longeron with the reinforcement and crossbeam, set up the installation position that is used for installing back sub vehicle frame in the lower part of reinforcement, form a plurality of domes that connect gradually in the front side of reinforcement, and make two adjacent domes's aspect ratio different, the intensity that makes the installation position borrow crossbeam and longeron simultaneously improves self intensity, can effectively keep away frequently simultaneously, reduce the vibration that the road surface transmission was come, avoid producing resonance, thereby can improve the NVH performance of vehicle.

According to some embodiments of the present invention, the extension line of the cross beam with the crossing point of the longitudinal beam in the front-rear direction with the installation position interval, the installation position is located the extension line of the cross beam with the front side of the crossing point of the longitudinal beam.

In some embodiments of the present invention, the reinforcement includes a main reinforcement plate, the main reinforcement plate is located on the cross beam and the lower side of the longitudinal beam, and the mounting position is located on the main reinforcement plate.

In some embodiments of the present invention, the bottom of the main reinforcing plate has a convex hull facing away from the longitudinal beam direction, and the installation position is located on the convex hull.

In some embodiments of the present invention, the reinforcement further includes a front side reinforcing plate, a lower side of the front side reinforcing plate is connected to a front side edge of the main reinforcing plate, an upper side of the front side reinforcing plate is fixedly connected to the cross beam, and left and right sides of the front side reinforcing plate are respectively flush with the main reinforcing plate.

In some embodiments of the present invention, a plurality of arches are formed on the front stiffener.

In some embodiments of the present invention, the plurality of domes include a first dome and a second dome connected in sequence, the first dome having an aspect ratio of M, the second dome having an aspect ratio of N, wherein M is unequal to N.

In some embodiments of the present invention, the stiffener further includes a rear stiffener, the lower side of the rear stiffener is connected to the rear side edge of the main stiffener, the upper side of the rear stiffener is connected to the fixed connection of the cross beam, one end of the rear stiffener in the left-right direction is flush with the one end of the main stiffener, the other end of the rear stiffener in the left-right direction extends to the orientation of the longitudinal beam to one side of the cross beam.

In some embodiments of the present invention, an arch structure is disposed on the rear reinforcing plate, the arch structure disposed on the rear reinforcing plate includes a third arch structure, an aspect ratio of the third arch structure is K, wherein | K-M | > 0.05, | K-N | > 0.05.

According to the utility model discloses vehicle, including foretell vehicle.

According to the utility model discloses the vehicle, through upper portion difference fixed connection longeron and the crossbeam with the reinforcement, set up the installation position that is used for installing the back sub vehicle frame in the lower part of reinforcement, form a plurality of domes that connect gradually in the front side of reinforcement, and make two adjacent domes's aspect ratio different, make the intensity that the installation position can borrow crossbeam and longeron simultaneously improve self intensity, can effectively keep away frequently simultaneously, reduce the vibration that the road surface transmitted and comes, avoid producing resonance, thereby can improve the NVH performance of 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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a top view of a rear subframe mount according to an embodiment of the present invention;

FIG. 2 is a partial perspective view of a rear subframe mount according to an embodiment of the invention;

FIG. 3 is a partial perspective view of another angle of the rear subframe mount according to an embodiment of the invention;

FIG. 4 is a perspective view of a reinforcement of the rear subframe mount according to an embodiment of the present invention;

fig. 5 is a perspective view of another angle of the reinforcement of the rear subframe mount according to an embodiment of the present invention.

Reference numerals:

100. a rear subframe mount;

1. a stringer;

2. a cross beam;

3. a reinforcement; 31. a main reinforcing plate; 311. a convex hull; 3111. an installation position; 32. a front side reinforcing plate; 321. a first dome; 322. a second dome; 33. a rear side reinforcing plate; 331. a third dome.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A rear subframe mount 100 according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1-3, a rear subframe mount 100 according to an embodiment of the present invention includes: a reinforcing member 3.

As shown in fig. 1 to 3, the upper part of the reinforcement 3 is fixedly connected to the longitudinal beam 1 and the transverse beam 2, respectively, and the lower part of the reinforcement 3 has a mounting location 3111 for mounting the rear subframe. Specifically, the rear subframe mount 100 includes longitudinal beams 1 and a cross beam 2, the cross beam 2 is located between the two longitudinal beams 1, both ends of the cross beam 2 in the left-right direction are connected to the two longitudinal beams 1 by an upper portion of a reinforcement 3, a lower portion of the reinforcement 3 and the longitudinal beams 1 have opposite portions, and a portion of the reinforcement 3 opposite to the longitudinal beams 1 has a mount location 3111 for mounting the rear subframe. Through reinforcement 3 with longeron 1 and crossbeam 2 be connected, make installation position 3111 can borrow the intensity of crossbeam 2 and longeron 1 simultaneously to can improve the structural strength of installation position 3111, reduce the sensitivity of vibration transmission, improve the NVH performance of vehicle. Wherein, can be equipped with the bolt sleeve on the installation position 3111, through the sub vehicle frame of bolt sleeve installation back.

In the description of the present invention, the front and rear are the front and rear direction of the vehicle body, the up and down direction of the vehicle body, and the left and right direction of the vehicle body.

For example, in the embodiment shown in fig. 1 to 3, two side members 1 are spaced apart in the left-right direction of the vehicle body, and a cross member 2 is located between the left and right side members 1. The upper portions of the two reinforcing members 3 connect both ends in the left-right direction of the cross member 2 to the left and right longitudinal members 1, respectively, and the mounting portion 3111 for mounting the rear subframe is provided at the lower portion of the reinforcing member 3, so that the strength of the mounting portion 3111 can be increased by the strength of the longitudinal members 1 and the cross member 2, and the sensitivity of vibration transmission can be reduced.

As shown in fig. 4 and 5, the front side of the reinforcing member 3 is formed with a plurality of arch structures connected in series, and the two adjacent arch structures have different aspect ratios. The local modal frequency on the reinforcing part 3 can be different due to the arrangement, the frequency can be effectively avoided, resonance is avoided, and accordingly the NVH performance of the vehicle can be improved. Wherein the aspect ratio is the ratio of the sagittal height to the chord length of the arch structure.

According to the utility model discloses back sub vehicle frame mount pad 100, through upper portion difference fixed connection longeron 1 and crossbeam 2 with reinforcement 3, set up the installation position 3111 that is used for installing the back sub vehicle frame in reinforcement 3's lower part, form a plurality of domes that connect gradually in reinforcement 3's front side, and make two adjacent domes's aspect ratio different, make installation position 3111 borrow crossbeam 2 and longeron 1's intensity simultaneously and improve the intensity of self, can effectively keep away frequently simultaneously, reduce the vibration that the road surface transmitted and come, avoid producing resonance, thereby can improve the NVH performance of vehicle.

According to some embodiments of the present invention, as shown in fig. 1 and 2, the intersection point of the extension line of the cross beam 2 and the longitudinal beam 1 is spaced from the mounting position 3111 in the front-rear direction of the longitudinal beam 1, and the mounting position 3111 is located in front of the intersection point of the extension line of the cross beam 2 and the longitudinal beam 1. Because the nodical department of extension line and longeron 1 of crossbeam 2 can't set up installation position 3111 to make installation position 3111 can't borrow the intensity of crossbeam 2 and longeron 1, the intensity that makes first reinforcement 3 can borrow crossbeam 2 and longeron 1 simultaneously improves installation position 3111 is set up like this, make installation position 3111's structural strength better, thereby can make back sub vehicle frame mount pad 100's reliability better, can reduce the vibration that the road surface transmission was come, improve the NVH performance of vehicle.

According to some embodiments of the present invention, as shown in fig. 2-5, the reinforcement 3 comprises a main reinforcement plate 31, the main reinforcement plate 31 being located at the lower side of the cross beam 2 and the longitudinal beam 1, the mounting location 3111 being located on the main reinforcement plate 31. The longitudinal beam 1 and the cross beam 2 can be better connected through the reinforcing plate by the arrangement, so that the structural strength of the mounting position 3111 is higher.

For example, in the embodiment shown in fig. 2 to 5, the main reinforcement 3 is formed substantially in a "bailer" shape, the front side edge of the main reinforcement panel 31 is gradually inclined forward in the direction from the cross member 2 to the side member 1, and the mounting position 3111 is located at a portion of the main reinforcement panel 31 opposed to the side member 1.

According to some embodiments of the present invention, as shown in fig. 2 to 5, the bottom of the main reinforcing plate 31 has a convex hull 311 protruding toward the direction away from the longitudinal beam 1, and the mounting position 3111 is disposed on the convex hull 311. Specifically, the bottom of the main gusset 31 may be a position where the main gusset 31 opposes the side member 1. This arrangement can improve the structural strength and vibration exciting area of the mounting portion 3111, and can reduce the sensitivity of vibration transmission. The convex hull 311 may have a spherical structure, which has high strength and large area, and can further improve the structural strength of the mounting position 3111.

According to some embodiments of the present invention, as shown in fig. 2-5, the reinforcement 3 further comprises a front side reinforcement plate 32, the lower side of the front side reinforcement plate 32 is connected to the front side edge of the main reinforcement plate 31, the upper side of the front side reinforcement plate 32 is fixedly connected to the cross beam 2, and the left and right sides of the front side reinforcement plate 32 are flush with the main reinforcement plate 31 respectively. The structural strength of the reinforcing part 3 can be guaranteed by the arrangement, so that the reinforcing part 3 can be better connected with the longitudinal beam 1 and the cross beam 2, and the structural strength and the stability of the rear auxiliary frame mounting seat 100 can be improved. In this case, at least a part of the circumferential edge of the front reinforcing plate 32 may be formed with a flange which is attached and fixedly connected to the member joined to the front reinforcing plate 32, and the flange may be fixedly connected to the member joined to the front reinforcing plate 32 in a welded manner, so that the connection strength between the front reinforcing plate 32 and the joined member may be improved.

For example, in the embodiment shown in fig. 2 to 3, the front reinforcing plate 32 is located on the front side of the cross member 2, the cross section of the front reinforcing plate 32 is formed into a substantially "S" shape, one end of the front reinforcing plate 32 in the left-right direction is connected to the cross member 2, the other end is connected to the side member 1, the lower side of the front reinforcing plate 32 is connected to the front edge of the main reinforcing plate 31, the upper side of the front reinforcing plate 32 is provided with a flange, and the flange of the front reinforcing plate 32 is connected to the side member 1 and the cross member 2.

According to some embodiments of the present invention, as shown in fig. 4 and 5, a plurality of arch structures are formed on the front stiffener plate 32. This arrangement can improve the structural strength of the front side reinforcing plate 32, and thus can make the structural strength of the reinforcement 3 higher.

According to some embodiments of the present invention, as shown in fig. 2 and 5, the plurality of domes includes a first dome 321 and a second dome 322 connected in sequence, the first dome 321 has an aspect ratio of M, the second dome 322 has an aspect ratio of N, wherein M is unequal to N. Specifically, the aspect ratio of the first arch 321 is the ratio of the rise of the first arch 321, i.e., the distance of the arch from the dome to the arch foot, to the chord in the left-right direction of the anterior stiffener 32, which refers to the length between the two arch feet of the arch, to the chord in the left-right direction of the anterior stiffener 32, and the aspect ratio of the second arch 322 is the ratio of the rise of the second arch 322, i.e., the chord in the left-right direction of the anterior stiffener 32. The local modal frequencies on the front side reinforcing plate 32 can be different due to the arrangement, the frequency can be effectively avoided, resonance is avoided, and accordingly the NVH performance of the vehicle can be improved. The first arch 321 may have an aspect ratio M of 0.18, and the second arch 322 may have an aspect ratio N of 0.26.

For example, in the embodiment shown in fig. 2 and 5, the portion of the front side gusset 32 opposite to the cross member 2 has a first arch structure 321, the first arch structure 321 is recessed toward the rear of the vehicle body, the portion of the front side gusset 32 opposite to the side member 1 has a second arch structure 322, the second arch structure 322 is raised toward the front of the vehicle body, the first arch structure 321 has an aspect ratio of 0.18, the second arch structure 322 has an aspect ratio of 0.26, and the front side gusset 32 may be provided with a recessed portion, which may improve the structural strength of the front side gusset 32. The difference between M of the first arch structure 321 and N of the second arch structure 322 is more than 0.05, so that resonance generated on the front side reinforcing plate 32 can be effectively avoided, and the NVH performance of the vehicle can be improved.

According to some embodiments of the present invention, as shown in fig. 2-4, the reinforcement 3 further includes a rear side reinforcing plate 33, a lower side of the rear side reinforcing plate 33 is connected to a rear side edge of the main reinforcing plate 31, an upper side of the rear side reinforcing plate 33 is fixedly connected to the cross beam 2, one end of the rear side reinforcing plate 33 in the left-right direction is flush with one end of the main reinforcing plate 31 away from the longitudinal beam 1, and the other end of the rear side reinforcing plate 33 in the left-right direction extends to one side of the longitudinal beam 1 toward the cross beam 2. The structural strength of the reinforcing part 3 can be guaranteed by the arrangement, so that the reinforcing part 3 can be better connected with the longitudinal beam 1 and the cross beam 2, and the structural strength and the stability of the rear auxiliary frame mounting seat 100 can be improved. In this case, at least a part of the circumferential edge of the rear reinforcing plate 33 may be formed with a flange which is attached and fixedly connected to the member joined to the rear reinforcing plate 33, and the flange may be fixedly connected to the member joined to the rear reinforcing plate 33 in a welded manner, so that the connection strength between the rear reinforcing plate 33 and the joined member may be improved.

For example, in the embodiment shown in fig. 2-4, the rear reinforcing plate 33 is disposed at the rear side of the cross beam 2, the lower side of the rear reinforcing plate 33 is connected to the front side edge of the main reinforcing plate 31, the upper side of the rear reinforcing plate 33 is provided with a flange which is welded to the cross beam 2, one end of the rear reinforcing plate 33 in the left-right direction is flush with one end of the main reinforcing plate 31 away from the side beam 1, the other end of the rear reinforcing plate 33 in the left-right direction extends to the side of the side beam 1 facing the cross beam 2, and the end is provided with a flange which is welded to the side beam 1.

According to some embodiments of the present invention, as shown in fig. 3 and fig. 4, the rear reinforcing plate 33 is provided with an arch structure, the arch structure located on the rear reinforcing plate 33 includes a third arch structure 331, and the height-width ratio of the third arch structure 331 is K, wherein | K-M | ≧ 0.05, | K-N | ≧ 0.05. This arrangement can improve the structural strength of the rear side reinforcing plate 33, so that the structural strength of the first reinforcing member 3 can be made higher. The value of the aspect ratio K of the third arch 331 may be 0.01, and the difference between the values of K of the third arch 331, M of the first arch 321, and N of the second arch 322 may be more than 0.05, so that the frequency can be effectively avoided, resonance on the reinforcing plate can be avoided, and the NVH performance of the vehicle can be improved. The rear reinforcing plate 33 may be provided with a concave portion, which may improve the structural strength of the front reinforcing plate 32.

A vehicle according to an embodiment of the present invention is described below.

According to the utility model discloses vehicle, including foretell back sub vehicle frame mount pad 100.

According to the utility model discloses the vehicle, through the upper portion difference fixed connection longeron 1 and crossbeam 2 with reinforcement 3, lower part setting at reinforcement 3 is used for installing the installation position 3111 of back sub vehicle frame, form a plurality of domes that connect gradually at reinforcement 3's front side, and make two adjacent domes's aspect ratio different, make installation position 3111 borrow the intensity that crossbeam 2 and longeron 1 improve self simultaneously, can effectively keep away frequently simultaneously, reduce the vibration that the road surface transmitted and come, avoid producing resonance, thereby can improve the NVH performance of vehicle.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A rear subframe mount (100), comprising:

reinforcement (3), the upper portion difference fixed connection longeron (1) and crossbeam (2) of reinforcement (3), the lower part of reinforcement (3) has installation position (3111) that is used for the installation back sub vehicle frame, the front side of reinforcement (3) is formed with a plurality of domes that connect gradually, adjacent two domes's aspect ratio is different.

2. The rear subframe mount (100) of claim 1 wherein an intersection of the extension of the cross member (2) and the side member (1) is spaced from the mounting location (3111) in a front-rear direction, the mounting location (3111) being located forward of the intersection of the extension of the cross member (2) and the side member (1).

3. The rear subframe mount (100) of claim 2 wherein the reinforcement (3) comprises a main reinforcement plate (31), the main reinforcement plate (31) being located on the underside of the cross member (2) and the side member (1), the mounting location (3111) being located on the main reinforcement plate (31).

4. The rear subframe mount (100) of claim 3 wherein the bottom of the main reinforcement plate (31) has a convex hull (311) that projects away from the side member (1), the mounting location (3111) being provided on the convex hull (311).

5. The rear subframe mount (100) of claim 3 wherein the reinforcement (3) further comprises a front side reinforcement plate (32), wherein the lower side of the front side reinforcement plate (32) is connected to the front side edge of the main reinforcement plate (31), the upper side of the front side reinforcement plate (32) is fixedly connected to the cross member (2), and the left and right sides of the front side reinforcement plate (32) are flush with the main reinforcement plate (31), respectively.

6. The rear subframe mount (100) of claim 5 wherein a plurality of domes are formed on the front side reinforcement plate (32).

7. The rear subframe mount (100) of claim 6 wherein the plurality of domes includes a first dome (321) and a second dome (322) connected in series, the first dome (321) having an aspect ratio M and the second dome (322) having an aspect ratio N, wherein M and N are not equal.

8. The rear subframe mount (100) of claim 7 wherein the reinforcement (3) further comprises a rear reinforcement plate (33), wherein a lower side of the rear reinforcement plate (33) is connected to a rear side edge of the main reinforcement plate (31), wherein an upper side of the rear reinforcement plate (33) is fixedly connected to the cross member (2), wherein one left-right direction end of the rear reinforcement plate (33) is flush with one end of the main reinforcement plate (31) away from the side member (1), and wherein the other left-right direction end of the rear reinforcement plate (33) extends to a side of the side member (1) facing the cross member (2).

9. The rear subframe mount (100) of claim 8 wherein said rear stiffener (33) has an arch, said arch on said rear stiffener (33) includes a third arch (331), said third arch (331) has an aspect ratio of K, wherein | K-M | ≧ 0.05, | K-N | ≧ 0.05.

10. A vehicle, characterized by comprising a vehicle according to any one of claims 1-9.

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