CN220430283U - Front subframe and vehicle - Google Patents

Abstract

The application relates to a front subframe and a vehicle, comprising: the two longitudinal beams extend longitudinally along the first direction and are distributed at intervals along the second direction, and each longitudinal beam is provided with a plurality of mounting structure mounting parts at intervals along the first direction, wherein the mounting structure mounting parts are used for being connected with a vehicle body; the plurality of towers are arranged on each longitudinal beam at intervals along the first direction, one end of each tower is arranged on each longitudinal beam, and the other end of each tower is used for being connected with a vehicle body. Above-mentioned preceding sub vehicle frame except can connect the automobile body through the longeron, can also connect longeron and automobile body interconnect through the tower, so, a plurality of mounting structure installation department and a plurality of installation tower on every longeron form a plurality of junction point positions of being connected with the automobile body jointly for preceding sub vehicle frame is inseparable with automobile body coupling, has promoted the rigidity of hanging of vehicle, can effectively promote vehicle operability, and can also reduce the automobile body vibration, and then promotes the NVH performance of vehicle, makes the passenger can obtain better riding comfort.

Description

Front subframe and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a front auxiliary frame and a vehicle.

Background

The front auxiliary frame is a framework of the front and rear axles and is an important component part of the front and rear axles. The front subframe is not a complete frame, but is simply a bracket that supports the front and rear axles and the suspension so that the axles and suspension are connected to the frame by it, so it is conventionally known as a "front subframe", which includes a front subframe and a rear subframe, which are important stress components.

The front auxiliary frame is used as a connecting part of the vehicle body and the control arm to bear larger impact force so as to buffer vibration of the vehicle body and improve comfort of passengers, and is used as a functional part for installing a pedestrian protection device, a front control arm, a steering gear, a stabilizer bar, a motor, a battery protection bracket and the like, so that more functions are exerted, but the connecting strength of the conventional front auxiliary frame and the vehicle body is poor, and the operability and the safety of the vehicle are not facilitated.

Disclosure of Invention

Based on the above, it is necessary to provide a front subframe and a vehicle, which solve the problems that the connection strength between the front subframe and the vehicle body is poor, and the operability and safety of the vehicle are not good.

A front subframe, comprising:

the two longitudinal beams extend longitudinally along a first direction and are distributed at intervals along a second direction, and a plurality of mounting parts for connecting with a vehicle body are arranged at intervals along the first direction;

the plurality of tower tables are arranged at intervals along the first direction, one end of each tower table in the third direction is mounted on the corresponding longitudinal beam, and the other end of each tower table in the third direction is used for being connected with the vehicle body;

wherein the first direction, the second direction and the third direction intersect in pairs and are not coplanar.

In one embodiment, the front subframe further comprises a protection beam, and one end of each of the two longitudinal beams, which is located on the same side, is connected with the protection beam.

In one embodiment, the protection beam comprises a connecting portion and two bending portions, the two bending portions are respectively connected with two ends of the connecting portion in the second direction and are arranged at an angle with the connecting portion, and the connecting portion of each bending portion and the connecting portion is connected with one of the longitudinal beams.

In one embodiment, the mounting portion is disposed on an end of each of the bending portions facing away from the connecting portion.

In one embodiment, at least a portion of the mounting portion is a connection hole.

In one embodiment, the front subframe further comprises a plurality of cross beams, all the cross beams are arranged between the two longitudinal beams at intervals along the first direction, and two ends of each cross beam are respectively connected with the two longitudinal beams.

In one embodiment, at least a portion of the cross beam is provided with mounting holes.

In one embodiment, at least one of the stringers, the cross beams, and the protection beams is a hollow structure.

In one embodiment, the front subframe further comprises a swing arm mounting frame, the two swing arm mounting frames are respectively and correspondingly mounted on the two longitudinal beams, and each swing arm mounting frame is connected with one of the tower tables located on the corresponding longitudinal beam.

A vehicle comprising a front subframe as claimed in any one of the preceding claims.

Above-mentioned preceding sub vehicle frame except can connect the automobile body through the longeron, can also connect longeron and automobile body interconnect through the tower, so, a plurality of mounting structure installation department and a plurality of installation tower on every longeron form a plurality of junction point positions of being connected with the automobile body jointly for preceding sub vehicle frame is inseparable with automobile body coupling, has promoted the rigidity of hanging of vehicle, can effectively promote vehicle operability, and can also reduce the automobile body vibration, and then promotes the NVH performance of vehicle, makes the passenger can obtain better riding comfort.

Drawings

Fig. 1 is a schematic structural view of a front subframe of the present application.

Reference numerals illustrate:

a longitudinal beam 10; a tower 11; a protection beam 12; a connection portion 13; a bending portion 14; a cross beam 15; a mounting hole 16;

a mounting structure mounting portion 20; a swing arm mounting frame 21;

first direction X, second direction Y, third direction Z.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of a front subframe according to an embodiment of the present application, where the front subframe includes two stringers 10 and a plurality of towers 11 respectively disposed on the two stringers 10.

The two longitudinal beams 10 extend lengthwise along the first direction X and are distributed at intervals along the second direction Y intersecting the first direction X, wherein each longitudinal beam 10 is provided with a plurality of mounting portions 20 for connecting with a vehicle body at intervals along the first direction X, and the mounting portions 20 can be holes, columns, pins, buckles and the like to achieve a structure of connecting and fixing. In this way, in the actual use process, a plurality of connection points connected with the vehicle body are formed on the longitudinal beam 10 through the mounting portion 20, so as to improve the connection strength between the vehicle body and the longitudinal beam 10.

The front subframe can be connected to the vehicle body via a side rail 10, but also via a tower 11 to connect the side rail 10 to the vehicle body. For this purpose, a plurality of towers 11 are each arranged at intervals along the first direction X on each of the side members 10, and each of the towers 11 is mounted on the side member 10 at one end in a third direction Z intersecting both the first direction X and the second direction Y, and is used for connection with the vehicle body at the other end in the third direction Z. Thus, the plurality of mounting portions 20 and the plurality of mounting towers on each longitudinal beam 10 jointly form a plurality of connection points connected with the vehicle body, so that the front auxiliary frame is tightly connected with the vehicle body, the suspension connection rigidity of the vehicle is improved, the vehicle operability can be effectively improved, the vehicle vibration can be reduced, the NVH performance of the vehicle is further improved, and passengers can obtain better riding comfort.

For vehicles using new energy, the battery pack in the new energy vehicle occupies a lot of space of the chassis, and the front subframe is generally positioned at the same level as the battery pack, so that the front subframe needs to play a role of protecting the battery pack in addition to the role of connecting the chassis suspension and the vehicle body. To this end, in some embodiments of the present application, the front subframe further includes a protection beam 12, and the ends of the two longitudinal beams 10 on the same side are connected to the protection beam 12, so that protection to the battery pack is formed at the ends of the two longitudinal beams 10 through the protection beam 12, and meanwhile, the two longitudinal beams 10 can be connected through the protection beam 12, so as to improve the overall connection strength of the front subframe.

In some embodiments, the protection beam 12 includes a connection portion 13 and two bending portions 14, and the two bending portions 14 are respectively connected to both ends of the connection portion 13 in the second direction Y and are disposed at an angle to the connection portion 13 to be respectively connected to the left front side member 10 of the vehicle body and the right front side member 10 of the vehicle body through the two bending portions 14, thereby further enhancing the connection strength of the front subframe to the vehicle body.

Wherein, the junction of every kink 14 and connecting portion 13 links to each other with one of them longeron 10, and the junction of every kink 14 and connecting portion 13 still is used for linking to each other with the floor spare of automobile body, in order to strengthen the joint strength of preceding sub vehicle frame and automobile body, specifically, two fastening holes have been seted up on protection roof beam 12, two fastening holes are located the junction of two kinks 14 and connecting portion 13 respectively, fastener such as the bolt of vehicle passes the fastening hole, and fix the preceding floor of vehicle and one of them longeron 10 in fastening hole department, make protection roof beam 12 can all fixed connection with preceding floor and longeron 10, the joint strength of preceding sub vehicle frame and automobile body has been strengthened.

In some embodiments, two bending portions 14 are respectively connected to the left front side member 10 of the vehicle body and the right front side member 10 of the vehicle body, and in order to facilitate connection of the bending portions 14 to the vehicle body, a mounting portion 20 is provided at an end of each bending portion 14 facing away from the connecting portion 13, and with the mounting portion 20 on the side member 10, the mounting portion 20 on the bending portion 14 may be a hole, a column, a pin, a buckle, or the like, which is configured to be fixedly connected.

In specific embodiments, at least part of the mounting portion 20 is a connecting hole, taking the front subframe in the embodiment of fig. 1 as an example, two connecting holes and two towers 11 are provided on each longitudinal beam 10, and one connecting hole is also provided on each bending portion 14, so that on one side of the front subframe, five connecting points with the vehicle body are shared, the whole front subframe has ten connecting points with the vehicle body, so that the front subframe is tightly connected with the vehicle body, the suspension connection rigidity of the vehicle is improved, the operability of the vehicle can be effectively improved, the vibration of the vehicle body can be reduced, the NVH performance of the vehicle can be further improved, and passengers can obtain better riding comfort.

In particular embodiments, each protection beam 12 includes an upper protection beam 12 plate and a lower protection beam 12 plate, where the upper protection beam 12 plate is bent toward the third direction Z at two edges of the first direction X, so that the upper protection beam 12 plate is bent into a U-shape, and the lower protection beam 12 plate is respectively connected to the upper protection beam 12 plate at two sides of the first direction X, so that the opening of the U-shape is closed, and thus the protection beam 12 is in a hollow structure by the lower protection beam 12 plate and the upper protection beam 12 plate, which is beneficial to improving the weight saving of the front subframe under the condition of improving the overall rigidity of the protection beam 12.

In some embodiments, the front subframe further includes a plurality of cross members 15, all the cross members 15 are arranged between the two longitudinal members 10 along the first direction X at intervals, and two ends of each cross member 15 are respectively connected with the two longitudinal members 10, so as to improve the connection strength between the two longitudinal members 10 through the plurality of cross members 15, thereby improving the overall strength structure of the front subframe. At least part of the cross beam 15 is provided with a mounting hole 16, and the mounting hole 16 can be used for mounting parts of a vehicle, such as a motor.

In particular embodiments, each beam 15 includes a beam 15 upper plate and a beam 15 lower plate, where the beam 15 upper plate is bent toward the third direction Z at two edges of the first direction X to bend the beam 15 upper plate into a U shape, and the beam 15 lower plate is connected to the beam 15 upper plate at two sides of the first direction X to close the opening of the U shape, so that the beam 15 is in a hollow structure by the beam 15 lower plate and the beam 15 upper plate, which is beneficial to improving the weight saving of the front subframe under the condition of improving the overall rigidity of the beam 15.

In particular, in some embodiments, each of the stringers 10 includes an upper stringer 10 plate and a lower stringer 10 plate, where the upper stringer 10 plate is bent toward the third direction Z at two edges of the first direction X to bend the upper stringer 10 plate into a U shape, and the lower stringer 10 plate is connected to the upper stringer 10 plate at two sides of the first direction X to close the opening of the U shape, so that the stringers 10 are hollow by the lower stringer 10 plate and the upper stringer 10 plate, which is beneficial to improving the weight saving of the front subframe under the condition of improving the overall rigidity of the stringers 10.

In some embodiments of the present application, the front subframe further includes a swing arm mounting frame 21, two swing arm mounting frames 21 are respectively correspondingly mounted on the two longitudinal beams 10, and each swing arm mounting frame 21 is connected with one of the tower tables 11 located on the corresponding longitudinal beam 10, wherein one of the swing arm mounting frames 21 is used for mounting a left front swing arm of the vehicle, and meanwhile, a swing arm hole is formed in the swing arm mounting frame 21 so as to connect the left front swing arm with the left front longitudinal beam 10 of the vehicle body through the swing arm hole. Similarly, another swing arm mounting frame 21 is used for mounting a right front swing arm of the vehicle, and meanwhile, a swing arm hole is formed in the swing arm mounting frame 21 so as to connect the right front swing arm with a right front longitudinal beam 10 of the vehicle body through the swing arm hole. By connecting the swing arm mounting frame 21 with the tower 11, the overall structural strength of the front subframe can be further improved, and the connection strength between the front subframe and the vehicle body can be enhanced.

The embodiment of the application also provides a vehicle, which includes the front subframe in any embodiment, and since the vehicle includes all technical features of the switch device, the vehicle has all technical effects of the front subframe, and will not be described herein again.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A front subframe, characterized in that the front subframe comprises:

two longitudinal beams (10) extend lengthwise along a first direction (X) and are distributed at intervals along a second direction (Y), and a plurality of mounting parts (20) for connecting with a vehicle body are arranged on each longitudinal beam (10) at intervals along the first direction (X);

a plurality of towers (11), wherein each longitudinal beam (10) is provided with a plurality of towers (11) at intervals along the first direction (X), each tower (11) is installed on the longitudinal beam (10) at one end of a third direction (Z), and the other end of the third direction (Z) is used for being connected with the vehicle body;

wherein the first direction (X), the second direction (Y) and the third direction (Z) intersect in pairs and are not coplanar.

2. The front subframe according to claim 1, characterized in that it further comprises a protective beam (12), both longitudinal beams (10) being connected to the protective beam (12) at their ends on the same side.

3. Front subframe according to claim 2, characterized in that the protective beam (12) comprises a connecting portion (13) and two bending portions (14), the two bending portions (14) being connected to the connecting portion (13) at both ends in the second direction (Y) respectively and being arranged at an angle to the connecting portion (13), the junction of each bending portion (14) with the connecting portion (13) being connected to one of the stringers (10).

4. A front subframe according to claim 3, characterized in that the mounting portion (20) is provided on the end of each of the bent portions (14) facing away from the connecting portion (13).

5. The front subframe according to claim 4, characterized in that at least part of the mounting portions (20) are attachment holes.

6. The front subframe according to claim 2, further comprising a plurality of cross members (15), all of said cross members (15) being disposed between two of said longitudinal members (10) at intervals along said first direction (X), and each of said cross members (15) being connected at both ends thereof to two of said longitudinal members (10), respectively.

7. Front subframe according to claim 6, characterized in that at least part of the cross member (15) is provided with mounting holes (16).

8. The front subframe according to claim 6, characterized in that at least one of the longitudinal beam (10), the transverse beam (15) and the protective beam (12) is of hollow construction.

9. Front subframe according to claim 1, characterized in that it further comprises a swing arm mounting frame (21), two swing arm mounting frames (21) being mounted on two of said stringers (10) respectively, and each of said swing arm mounting frames (21) being connected to one of said towers (11) located on a respective one of said stringers (10).

10. A vehicle comprising a front subframe according to any one of claims 1 to 9.