CN216994503U - Auxiliary frame and vehicle - Google Patents

Abstract

The utility model discloses an auxiliary frame and a vehicle, wherein the auxiliary frame comprises: two spaced apart stringers; one end of the first cross beam in the length direction is connected with one longitudinal beam, and the other end of the first cross beam is connected with the other longitudinal beam; and the second cross beam is connected with one longitudinal beam at one end in the length direction and the other end of the second cross beam is connected with the other longitudinal beam, the second cross beam and the first cross beam are spaced in the length direction of the longitudinal beams, at least part of the second cross beam is positioned at the front 1/5-1/2 in the length direction of the longitudinal beams in the direction from the first cross beam to the second cross beam, and the second cross beam and parts of the two longitudinal beams define an installation space which is positioned on one side of the second cross beam far away from the first cross beam. The auxiliary frame disclosed by the utility model is compact in structural design, is beneficial to spatial arrangement, realizes the maximization of space utilization and reduces the production cost.

Description

Auxiliary frame and vehicle

Technical Field

The utility model relates to the technical field of automobile suspension systems, in particular to an auxiliary frame and a vehicle.

Background

In the related art, the structural style of the subframe is mostly a full-frame subframe, the full-frame subframe is an avoidance mounting structure (such as a motor) and takes into account the connection relation with the longitudinal beam, the full-frame subframe is large in overall size and occupies a large arrangement space, so that the arrangement space is wasted and is not favorable for space arrangement.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a subframe, which has a compact structural design, facilitates space arrangement, maximizes space utilization, and reduces production costs.

Another object of the present invention is to provide a vehicle having the subframe.

According to the sub frame of the embodiment of the utility model, comprising: two spaced apart stringers; one end of the first cross beam in the length direction is connected with one longitudinal beam, and the other end of the first cross beam is connected with the other longitudinal beam; a second cross member, one end of the length direction of the second cross member is connected with one of the longitudinal beams, the other end of the second cross member is connected with the other longitudinal beam, and the second cross member and the first cross member are spaced in the length direction of the longitudinal beams, wherein in the direction from the first cross member to the second cross member, at least part of the second cross member is positioned at the front 1/5-1/2 of the length direction of the longitudinal beams, the second cross member and parts of the two longitudinal beams define an installation space, and the installation space is positioned at one side of the second cross member far away from the first cross member.

According to the auxiliary frame provided by the embodiment of the utility model, at least part of the second cross beam is positioned at the front 1/5-1/2 in the length direction of the longitudinal beam in the direction from the first cross beam to the second cross beam, so that the mounting space can be defined by the side, far away from the first cross beam, of the second cross beam and the parts of the two longitudinal beams.

In addition, the subframe according to the above embodiment of the present invention may also have the following additional technical features:

according to the auxiliary frame of some embodiments of the utility model, the middle part of the second cross beam protrudes towards the direction of the first cross beam, and the position where the second cross beam is closest to the first cross beam in the direction from the first cross beam to the second cross beam is located at the front 1/5-1/2 in the length direction of the longitudinal beam.

According to some embodiments of the utility model, the connection location of the second cross member to both of the longitudinal members in the direction from the first cross member to the second cross member is located at the front 1/2-4/5 in the longitudinal direction of the longitudinal members.

According to some embodiments of the utility model, the subframe further comprises: the reinforcing ribs are two and are respectively arranged at two ends of the second cross beam in the length direction, the reinforcing ribs and the second cross beam are arranged in the up-down direction, one of the reinforcing ribs is connected with one end of the second cross beam in the length direction and one of the longitudinal beams, and the other reinforcing rib is connected with the other end of the second cross beam in the length direction and the other longitudinal beam.

According to some embodiments of the utility model, the reinforcing rib comprises a first rib section and a second rib section which are connected, the first rib section and the second rib section form an angle with each other, the joint of the first rib section and the second rib section is connected with the second cross beam, one end of the first rib section, which is far away from the second rib section, and one end of the second rib section, which is far away from the first rib section, are both connected with the longitudinal beam, and one end of the first rib section, which is far away from the second rib section, and one end of the second rib section, which is far away from the first rib section, are spaced apart in the length direction of the longitudinal beam.

According to some embodiments of the utility model, the first rib section is opposite to the second cross member in the up-down direction, and the second rib section is located on a side of the first rib section close to the first cross member.

According to some embodiments of the utility model, the subframe further comprises: the first mounting bracket is arranged on one of the longitudinal beams, the first mounting bracket is positioned at the rear 1/5-1/2 of the longitudinal beam in the length direction in the direction from the first cross beam to the second cross beam, the number of the first mounting brackets is two, and the two first mounting brackets are respectively arranged on one sides, far away from each other, of the two longitudinal beams.

According to some embodiments of the utility model, the subframe comprises: the reinforcing plates are two and located in the installation space, one end of each reinforcing plate is connected with one end of the second cross beam in the length direction, the other end of each reinforcing plate is connected with the longitudinal beam corresponding to the corresponding side, one end of each reinforcing plate is connected with the other end of the second cross beam in the length direction, and the other end of each reinforcing plate is connected with the longitudinal beam corresponding to the corresponding side.

According to some embodiments of the utility model, the subframe comprises: the second mounting supports are arranged on one of the longitudinal beams, the number of the second mounting supports is two, the two second mounting supports are respectively arranged on one sides, far away from each other, of the two longitudinal beams, and the two second mounting supports are respectively opposite to two ends of the first cross beam in the length direction.

The vehicle provided by the embodiment of the utility model comprises the auxiliary frame provided by the embodiment of the utility model.

Additional aspects and advantages of the utility model 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 utility model.

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 schematic structural diagram of a subframe according to an embodiment of the present invention;

FIG. 2 is a top view of a subframe according to an embodiment of the utility model;

FIG. 3 is a bottom view of a subframe according to an embodiment of the utility model;

FIG. 4 is a left side view of a subframe according to an embodiment of the utility model;

FIG. 5 is a front view of a subframe according to an embodiment of the utility model.

Reference numerals are as follows:

a subframe 100;

a longitudinal beam 10;

a first cross member 21; a second cross member 22;

an installation space 30;

a reinforcing rib 41; a reinforcing plate 42; a first rib section 411; a second web segment 412;

a first mounting bracket 51; a second mounting bracket 52;

a motor mounting bracket 60.

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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or may include the first and second features being not in direct contact but being in contact with another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

The subframe 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

Referring to fig. 1 to 5, a subframe 100 according to an embodiment of the present invention may include: two longitudinal beams 10, a first cross beam 21 and a second cross beam 22.

Specifically, the two longitudinal beams 10 are spaced apart, one end of the first cross beam 21 in the length direction (for example, the left-right direction shown in fig. 2) is connected to one of the longitudinal beams 10, the other end of the first cross beam 21 in the length direction is connected to the other longitudinal beam 10, one end of the second cross beam 22 in the length direction (for example, the left-right direction shown in fig. 2) is connected to one of the longitudinal beams 10, the other end of the second cross beam 22 in the length direction is connected to the other longitudinal beam 10, and the second cross beam 22 and the first cross beam 21 are spaced apart in the length direction (for example, the front-rear direction shown in fig. 2) of the longitudinal beams 10, so that the first cross beam 21 and the second cross beam 22 are connected to the longitudinal beams 10, the structural strength of the subframe 100 is increased, and the subframe 100 has a simple structure, which is beneficial for reducing the production cost.

In addition, as shown in fig. 1 to 3, at least a portion of the second cross member 22 is located at front 1/5 to 1/2 of the longitudinal members 10 in the direction from the first cross member 21 to the second cross member 22 (for example, in the front-to-rear direction shown in fig. 2), so that the subframe 100 forms a half-frame structure, the second cross member 22 and portions of the two longitudinal members 10 can define the installation space 30, and the installation space 30 is located at a side of the second cross member 22 away from the first cross member 21 (for example, at a rear side shown in fig. 2). For example, in some exemplary embodiments, at least a portion of the second cross member 22 is located longitudinally forward of the longitudinal member 10 at 1/8, 1/5, 1/4, 1/3, 2/5, 1/2, etc.

For example, in some embodiments, as shown in fig. 2 and 3, the installation space 30 may be "Π -shaped", which ensures that the installation space 30 has a larger area, facilitating spatial arrangement.

In some embodiments, a motor, a reducer, and the like may be disposed in the installation space 30, so that the subframe 100 may provide a disposition space for the motor and the reducer, thereby solving the problem of insufficient disposition space, facilitating the realization of a platform design, and improving the utilization rate of the space.

It should be noted that, for convenience of description, the orientations of the "front", "rear", "left", "right", "upper" and "lower" are based on the orientation relationship shown in the drawings, and are not limited to the orientation during the actual application.

According to the subframe 100 of the embodiment of the utility model, at least part of the second cross beam 22 is positioned at the front 1/5-1/2 of the longitudinal beam 10 in the length direction of the first cross beam 21 to the second cross beam 22, so that the installation space 30 can be defined by the side of the second cross beam 22 far away from the first cross beam 21 and the parts of the two longitudinal beams 10.

According to some embodiments of the present invention, as shown in fig. 1 to 3, the middle portion of the second cross member 22 protrudes toward the direction of the first cross member 21, and in the direction from the first cross member 21 to the second cross member 22, the position where the second cross member 22 is closest to the first cross member 21 is located at the front 1/5-1/2 in the length direction of the longitudinal member 10, that is, the protruding position of the second cross member 22 is located at the front 1/5-1/2 in the length direction of the longitudinal member 10, so that the second cross member 22 may form an arch structure, the structural strength of the second cross member 22 is increased, the structural strength of the subframe 100 is improved, the area of the installation space 30 is increased, the structure is more compact, the space arrangement is facilitated, the problem of insufficient arrangement space is avoided, and the required space requirement of the installation space 30 is met. For example, in some embodiments, the position where the second cross member 22 is closest to the first cross member 21 is located at the front 1/8, 1/5, 1/4, 1/3, 2/5, 1/2, etc. of the longitudinal member 10 in the longitudinal direction.

In some embodiments of the present invention, as shown in fig. 1 to 3, in the direction from the first cross member 21 to the second cross member 22, the connection position between the second cross member 22 and the two longitudinal members 10 is located at the front 1/2-4/5 in the length direction of the longitudinal members 10, so that the structural strength of the subframe 100 is increased, the subframe 100 is ensured to be structurally stable, the structural design is compact, the installation space 30 can have a large space, the spatial arrangement is facilitated, and the space utilization is maximized. For example, in some embodiments, the connection locations of the second cross member 22 to the two longitudinal members 10 are located at the front ends 1/8, 1/5, 1/4, 1/2, 3/5, 4/5, etc., of the longitudinal members 10 in the longitudinal direction.

In some embodiments, as shown in fig. 1 to 3, the ends (e.g., the rear ends shown in fig. 2) of the two longitudinal beams 10 far away from the second cross beam 22 extend obliquely toward a direction far away from each other, which is beneficial to increase the spatial area of the installation space 30, to facilitate spatial arrangement, and to increase the distance between the longitudinal beams 10 and other structures (e.g., a battery pack), so that the two longitudinal beams 10 can be deformed toward both sides respectively in a collision, thereby preventing the longitudinal beams 10 from contacting other structures to cause structural damage and improving safety.

According to some embodiments of the present invention, as shown in fig. 1 and fig. 2, the subframe 100 further includes two reinforcing ribs 41, the two reinforcing ribs 41 are respectively disposed at two ends of the second cross member 22 in the length direction, and the reinforcing ribs 41 and the second cross member 22 are arranged in the vertical direction, for example, the reinforcing ribs 41 may be located above or below the second cross member 22, so as to increase the structural strength of the subframe 100, avoid the reinforcing ribs 41 occupying the space of the installation space 30, ensure that the space area of the installation space 30 is large, and facilitate improvement of the space utilization rate.

In addition, one of the reinforcing ribs 41 is connected with one end of the second cross beam 22 in the length direction and one of the longitudinal beams 10, and the other reinforcing rib 41 is connected with the other end of the second cross beam 22 in the length direction and the other longitudinal beam 10, so that the connection reliability of the longitudinal beam 10 and the second cross beam 22 can be ensured, the structural strength of the auxiliary frame 100 is improved, the deformation is not easy to occur, the increase of other cross beam structures in the installation space 30 to ensure the structural strength of the auxiliary frame 100 is omitted, the structural design of the auxiliary frame 100 is ensured to be compact, the spatial arrangement is facilitated, and the space utilization maximization is realized.

In some embodiments, as shown in fig. 1 and fig. 2, reinforcing ribs 41 are disposed at both left and right ends of the second cross member 22, the two reinforcing ribs 41 are disposed above the second cross member 22, the reinforcing rib 41 on the left side is connected to the left end of the second cross member 22 and the longitudinal member 10 on the left side, and the reinforcing rib 41 on the right side is connected to the right end of the second cross member 22 and the longitudinal member 10 on the right side, so as to ensure reliable connection between the second cross member 22 and the longitudinal members 10 on the left side and the longitudinal members 10 on the right side, which is beneficial to improving the structural strength of the subframe 100.

In the embodiment of the present invention, the specific structure of the reinforcing ribs 41 may be set according to actual conditions.

For example, in some embodiments, as shown in fig. 1 and 2, the reinforcing rib 41 includes a first rib section 411 and a second rib section 412 connected to each other, and the first rib section 411 and the second rib section 412 are at an angle to each other, so as to ensure the structural strength of the reinforcing rib 41 and prevent deformation.

In addition, as shown in fig. 1 and fig. 2, a joint of the first rib section 411 and the second rib section 412 is connected to the second cross beam 22, and one end (for example, the left end shown in fig. 2) of the first rib section 411 far away from the second rib section 412 and one end (for example, the left end shown in fig. 2) of the second rib section 412 far away from the first rib section 411 are both connected to the longitudinal beam 10, and one end of the first rib section 411 far away from the second rib section 412 and one end of the second rib section 412 far away from the first rib section 411 are spaced apart in the length direction of the longitudinal beam 10, so that after the reinforcing rib 41 is connected to the longitudinal beam 10 and the second cross beam 22, a substantially triangular structure can be formed, thereby ensuring that the reinforcing rib 41 is reliably connected to the longitudinal beam 10 and the second cross beam 22, increasing the connection strength, and enhancing the structural strength of the subframe 100. Simultaneously, the one end that second muscle section 412 was kept away from to first muscle section 411 and the one end that first muscle section 411 was kept away from to second muscle section 412 are spaced apart on the length direction of longeron 10 for strengthening rib 41 can dodge other structures, and other structrual installations of being convenient for ensure that other structures and longeron 10 are connected reliably on longeron 10 between first muscle section 411 and second muscle section 412.

In some embodiments of the present invention, the first rib section 411 is opposite to the second cross beam 22 in the up-down direction, for example, the first rib section 411 may be located above or below the second cross beam 22, and the second rib section 412 is located on a side (e.g., the front side shown in fig. 2) of the first rib section 411 close to the first cross beam 21, so that the structural strength of the subframe 100 is improved, the space occupied by the reinforcing ribs 41 in the installation space 30 can be avoided, the large space area of the installation space 30 is ensured, and the space utilization ratio is improved.

According to some embodiments of the present invention, as shown in fig. 1 to 4, the subframe 100 further includes a first mounting bracket 51, the first mounting bracket 51 is disposed on one of the longitudinal beams 10, and in a direction from the first cross beam 21 to the second cross beam 22, the first mounting bracket 51 is located at a rear 1/5-1/2 in a length direction of the longitudinal beam 10, so that a distance between the first mounting bracket 51 and the second cross beam 22 can be relatively short, and the second cross beam 22 and the longitudinal beam 10 can provide a relatively good supporting effect for the first mounting bracket 51, which is beneficial to improving the structural strength and the dynamic stiffness of the first mounting bracket 51, and ensuring that the first mounting bracket 51 is reliably connected. In addition, the number of the first mounting brackets 51 may be two, the two first mounting brackets 51 are respectively disposed on the sides of the two longitudinal beams 10 away from each other, and other structures may be mounted on the subframe 100 through the two first mounting brackets 51, so that the other structures are fixed conveniently, and reliable connection is ensured. For example, in some embodiments, the first mounting bracket 51 is located at a rear 1/8, 1/5, 1/4, 1/3, 2/5, 1/2, etc., of the longitudinal beam 10 in the lengthwise direction.

For example, in some embodiments, the first mounting bracket 51 may be a front control arm mounting bracket, the front control arm may be connected and fixed to the subframe 100 through the front control arm mounting bracket, in the direction from the first cross beam 21 to the second cross beam 22, the front control arm mounting bracket is located at the rear 1/5-1/2 in the length direction of the longitudinal beam 10, and the connection position of the second cross beam 22 and the two longitudinal beams 10 is located at the front 1/2-4/5 in the length direction of the longitudinal beam 10, so that the distance from the front control arm mounting bracket to the second cross beam 22 can be relatively short, and the second cross beam 22 and the longitudinal beam 10 can provide a relatively good supporting effect for the first mounting bracket 51, which is beneficial to improving the dynamic stiffness of the front control arm mounting bracket.

In some embodiments of the subframe 100 including the reinforcing rib 41, as shown in fig. 2, one end of the reinforcing rib 41 connected to the second cross member 22 can overlap with a portion of the first mounting bracket 51, so as to effectively improve the connection strength of the first mounting bracket 51 and ensure that the first mounting bracket 51 is reliably connected.

In some embodiments of the present invention, as shown in fig. 1 to fig. 3, the subframe 100 includes two reinforcing plates 42, two reinforcing plates 42 are located in the installation space 30, one end of one reinforcing plate 42 is connected to one end of the second cross member 22 in the length direction, the other end is connected to the longitudinal member 10 on the corresponding side, one end of the other reinforcing plate 42 is connected to the other end of the second cross member 22 in the length direction, and the other end is connected to the longitudinal member 10 on the corresponding side, so that the connection strength between the longitudinal member 10 and the second cross member 22 can be increased, the structural strength of the subframe 100 is improved, deformation is not likely to occur, and other cross member structures are omitted from being added in the installation space 30 to ensure the structural strength of the subframe 100, so as to ensure that the subframe 100 has a compact structural design, facilitate spatial arrangement, and maximize spatial utilization.

In some embodiments, as shown in fig. 1 and 2, two reinforcing plates 42 may be respectively located at the left and right sides of the installation space 30, the upper end of the left reinforcing plate 42 is connected to the left end of the second cross member 22, the left end of the left reinforcing plate 42 is connected to the left side member 10, the upper end of the right reinforcing plate 42 is connected to the right end of the second cross member 22, the right end of the right reinforcing plate 42 is connected to the right side member 10, the left reinforcing plate 42 and the right reinforcing plate 42 may be formed in a substantially triangular shape, and are all positioned at the connecting part of the longitudinal beam 10 and the second cross beam 22, which is beneficial to reducing the space occupied by the installation space 30, is convenient for arranging the space of the installation space 30, realizes the maximization of space utilization, in addition, the second cross member 22 is reliably connected to the left side longitudinal member 10 and the right side longitudinal member 10, which is advantageous for improving the structural strength of the subframe 100.

According to some embodiments of the present invention, as shown in fig. 1 to 4, the subframe 100 includes two second mounting brackets 52, the second mounting brackets 52 are disposed on one of the longitudinal beams 10, the number of the second mounting brackets 52 may be two, the two second mounting brackets 52 are respectively disposed on the sides of the two longitudinal beams 10 away from each other, and other structures may be mounted on the subframe 100 through the two second mounting brackets 52, so as to fix the other structures and ensure reliable connection.

In addition, as shown in fig. 1 to fig. 3, the two second mounting brackets 52 are respectively opposite to two ends of the first cross beam 21 in the length direction, so that the second mounting brackets 52 are located at the joint of the first cross beam 21 and the longitudinal beam 10, and the first cross beam 21 and the longitudinal beam 10 can provide a better supporting effect for the second mounting brackets 52, which is beneficial to improving the structural strength and the dynamic stiffness of the second mounting brackets 52 and ensuring that the second mounting brackets 52 are reliably connected.

For example, in some embodiments, the second mounting bracket 52 may be a rear control arm mounting bracket, the rear control arm may be connected and fixed to the subframe 100 through the rear control arm mounting bracket, and two rear control arm mounting brackets are respectively opposite to two ends of the first cross beam 21 in the length direction, so that the rear control arm mounting bracket may be located at a connection position of the first cross beam 21 and the longitudinal beam 10, and the first cross beam 21 and the longitudinal beam 10 can provide a better supporting effect for the second mounting bracket 52, which is beneficial to improving the dynamic stiffness of the rear control arm mounting bracket.

In some embodiments, the longitudinal beam 10, the first cross beam 21 and the second cross beam 22 can be manufactured by adopting a hydraulic forming process, and compared with a sheet metal buckling structure adopted in the related art, the size and the weight of the longitudinal beam 10, the first cross beam 21 and the second cross beam 22 are reduced by adopting the hydraulic forming process, so that the lightweight is facilitated, a large number of dies required for manufacturing the longitudinal beam 10, the first cross beam 21 and the second cross beam 22 are avoided, the complexity of the dies is reduced, more welding seams on the longitudinal beam 10, the first cross beam 21 and the second cross beam 22 are reduced, the structure is simple, the structural complexity of the subframe 100 is facilitated to be reduced, and the production cost and the production time of the subframe 100 are reduced.

In some embodiments, the two longitudinal beams 10, the first cross beam 21 and the second cross beam 22 may be connected by welding to form a tailor welded structure, so as to ensure that the structural strength of the subframe 100 is high, improve the structural rigidity of the subframe 100, ensure reliable connection, and facilitate reduction of the production cost.

The vehicle according to the embodiment of the present invention includes the subframe 100 according to the embodiment of the present invention. Since the subframe 100 according to the embodiment of the present invention has the above-mentioned advantageous technical effects, according to the vehicle according to the embodiment of the present invention, by locating at least a portion of the second cross member 22 at the front 1/5-1/2 in the longitudinal direction of the side member 10 in the direction from the first cross member 21 to the second cross member 22, the side of the second cross member 22 away from the first cross member 21 and portions of the two side members 10 can define the installation space 30, and compared with a full-frame subframe in the related art, the subframe is compact in structural design, facilitates space arrangement, maximizes space utilization, and reduces production cost.

In some embodiments, as shown in fig. 1 to 3, the vehicle may include a vehicle body, the second cross member 22 may be provided with a motor mounting bracket 60, the vehicle body may be provided with a plurality of motor mounting brackets 60, the motor may be fixed by the motor mounting bracket 60, the mounting space 30 provides a space for disposing the motor, which facilitates the placement of the motor, ensures reliable installation of the motor, and reduces the number of the motor mounting brackets 60 on the subframe 100, thereby facilitating reduction of the structural complexity of the subframe 100 and reduction of the production cost.

Other constructions and operations of the subframe 100 and vehicle according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of "an embodiment," "a specific embodiment," "an example" or the like are intended to 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 utility model. 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 utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A subframe (100) comprising:

two spaced apart stringers (10);

the first cross beam (21), one end of the first cross beam (21) in the length direction is connected with one of the longitudinal beams (10), and the other end of the first cross beam is connected with the other longitudinal beam (10);

a second cross member (22), one end of the second cross member (22) in the length direction is connected with one of the longitudinal beams (10), the other end of the second cross member is connected with the other longitudinal beam (10), and the second cross member (22) and the first cross member (21) are spaced in the length direction of the longitudinal beams (10),

wherein, in the direction from the first cross beam (21) to the second cross beam (22), at least part of the second cross beam (22) is located at the front 1/5-1/2 of the longitudinal beams (10) in the length direction, the second cross beam (22) and parts of two longitudinal beams (10) define an installation space (30), and the installation space (30) is located on the side of the second cross beam (22) far away from the first cross beam (21).

2. The subframe (100) according to claim 1, wherein a middle portion of the second cross member (22) is protruded toward the direction of the first cross member (21), and a position where the second cross member (22) is closest to the first cross member (21) in the direction from the first cross member (21) to the second cross member (22) is located at a front 1/5-1/2 in the longitudinal direction of the side member (10).

3. The subframe (100) according to claim 1, wherein the connecting position of the second cross member (22) to the two longitudinal members (10) in the direction from the first cross member (21) to the second cross member (22) is located at the rear 1/5-1/2 in the longitudinal direction of the longitudinal members (10).

4. The subframe (100) of claim 1 further comprising:

the reinforcing ribs (41), the reinforcing ribs (41) are two and locate respectively the both ends of second crossbeam (22) length direction, reinforcing ribs (41) with second crossbeam (22) arranges on the upper and lower direction, one of them reinforcing ribs (41) with the one end and one of them of second crossbeam (22) length direction longeron (10) are connected, another reinforcing ribs (41) with the other end and another of second crossbeam (22) length direction longeron (10) are connected.

5. The subframe (100) of claim 4 wherein the reinforcement rib (41) comprises a first rib section (411) and a second rib section (412) connected together, the first rib section (411) and the second rib section (412) are angled with respect to each other, a connection between the first rib section (411) and the second rib section (412) is connected to the second cross member (22), and both an end of the first rib section (411) remote from the second rib section (412) and an end of the second rib section (412) remote from the first rib section (411) are connected to the longitudinal beam (10), and an end of the first rib section (411) remote from the second rib section (412) and an end of the second rib section (412) remote from the first rib section (411) are spaced apart in a length direction of the longitudinal beam (10).

6. The subframe (100) of claim 5 wherein said first rib section (411) is vertically opposite said second cross member (22), and said second rib section (412) is located on a side of said first rib section (411) adjacent to said first cross member (21).

7. The subframe (100) of claim 1 wherein said subframe (100) further comprises:

the first mounting bracket (51) is arranged on one of the longitudinal beams (10), in the direction from the first cross beam (21) to the second cross beam (22), the first mounting bracket (51) is positioned at the front 1/2-4/5 of the longitudinal beam (10) in the length direction, the number of the first mounting brackets (51) is two, and the two first mounting brackets (51) are respectively arranged on one sides, far away from each other, of the two longitudinal beams (10).

8. The subframe (100) of claim 1 wherein said subframe (100) comprises:

reinforcing plates (42), reinforcing plates (42) are two, two reinforcing plates (42) are located in installation space (30), one of them reinforcing plates (42) one end with second crossbeam (22) length direction's one end is connected, and the other end with correspond the side longeron (10) are connected, another reinforcing plates (42) one end with second crossbeam (22) length direction's the other end is connected, the other end with correspond the side longeron (10) are connected.

9. The subframe (100) of claim 1 wherein said subframe (100) comprises:

the two second mounting brackets (52) are arranged on one of the longitudinal beams (10), the number of the second mounting brackets (52) is two, the two second mounting brackets (52) are respectively arranged on one sides, far away from each other, of the two longitudinal beams (10), and the two second mounting brackets (52) are respectively opposite to two ends of the first cross beam (21) in the length direction.

10. A vehicle, characterized in that it comprises a sub-frame (100) according to any one of claims 1-9.

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