CN217864348U - Subframe and vehicle - Google Patents

Abstract

The application discloses a subframe and a vehicle. The sub-frame provided by the embodiment of the present application is used for a vehicle. The vehicle includes a side member. The auxiliary frame includes a body, a bracket, a suspension and a vertical plate. The bracket is arranged on the body. The suspension is connected with the bracket. The vertical plate is connected with the bracket, and the vertical plate is used for connecting with the longitudinal beam of the vehicle. In this way, through the setting of the vertical plate, the longitudinal beam can be connected with the suspension, bracket and body on the sub-frame as a whole, thereby improving the dynamic stiffness of the vehicle in the longitudinal direction, solving the NVH vibration and noise problem of the vehicle, and improving Vehicle comfort. Simultaneously, the problem that the support and the vehicle body cannot be fixed after the sub-frame and the vehicle body are combined can be avoided.

Description

Subframe and vehicle

technical field

The present application relates to the technical field of automobiles, in particular to a subframe and a vehicle.

Background technique

With the development of the automobile industry, automobiles are not just a means of travel. People have higher and higher requirements for the comfort of vehicles. It is required to improve the modal requirements of the parts on the transmission path of each excitation source or add dampers during the initial design of the automobile. barrier transmission path. In related technologies, solutions such as hydraulic mounts, rubber mounts, or adding Dampere are usually used to reduce vehicle vibration and vibration transmission paths, but the NVH noise problem caused by engine vibration cannot be avoided.

Utility model content

The embodiments of the present application provide a subframe and a vehicle.

The sub-frame provided in the embodiment of the present application is used for a vehicle. The vehicle includes a side member. The auxiliary frame includes a body, a bracket, a suspension and a vertical plate. The bracket is arranged on the body. The suspension is connected with the support. The vertical plate is connected with the bracket, and the vertical plate is used for connecting with the longitudinal beam of the vehicle.

In this way, through the setting of the vertical plate, the longitudinal beam can be connected with the suspension, bracket and body on the sub-frame as a whole, thereby improving the dynamic stiffness of the vehicle in the longitudinal direction, solving the NVH vibration and noise problem of the vehicle, and improving Vehicle comfort. Simultaneously, the problem that the support and the vehicle body cannot be fixed after the sub-frame and the vehicle body are combined can also be avoided.

In some embodiments, the bracket is formed with a mounting plate, the mounting plate is used for connecting the vertical plate, and the vertical plate is vertically arranged on the mounting plate to connect with the side of the longitudinal beam.

In some embodiments, the vertical plate includes a first reinforcing rib, a connecting plate and a second reinforcing rib, the connecting plate connects the first reinforcing rib and the second reinforcing rib, and In the extending direction, the first reinforcing rib is spaced apart from the second reinforcing rib.

In some embodiments, the number of the vertical plates is two, and the two vertical plates are arranged on the installation plate along the extending direction of the longitudinal beam.

In some embodiments, the suspension is arranged between two vertical plates along the extension direction of the longitudinal beam.

In some embodiments, a recessed portion is formed on the mounting plate, and the recessed portion is used for accommodating part of the longitudinal beam.

In some embodiments, the subframe includes a first connecting member, and the vertical plate is connected to the longitudinal beam of the vehicle through the first connecting member.

In some embodiments, the sub-frame further includes a bushing, and the first connecting member passes through the bushing to connect the vertical plate and the longitudinal beam of the vehicle.

In some embodiments, the subframe includes a second connecting piece, and the suspension is connected to the bracket through the second connecting piece.

The vehicle provided in the embodiments of the present application includes a longitudinal beam and the sub-frame described in any of the above-mentioned embodiments, and the sub-frame is connected to the longitudinal beam.

Additional aspects and advantages of the application 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 application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and understandable from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a subframe and a longitudinal beam in an embodiment of the present application;

Fig. 2 is an exploded schematic diagram of a subframe and a longitudinal beam according to an embodiment of the present application;

Fig. 3 is a schematic plan view of a vehicle according to an embodiment of the present application;

Fig. 4 is a schematic cross-sectional view of a sub-frame and a longitudinal beam according to an embodiment of the present application;

Fig. 5 is a schematic structural view of a vertical panel according to an embodiment of the present application.

Explanation of symbols of main components: subframe 10, body 11, front beam 111, left longitudinal beam 112, rear beam 113, bracket 12, mounting plate 121, recessed part 1211, suspension 13, vertical plate 14, first reinforcing rib 141 , the connecting plate 142 , the second reinforcing rib 143 , the first connecting piece 15 , the bushing 16 , the second connecting piece 17 , the vehicle 100 , the longitudinal beam 20 , and the vehicle body 30 .

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, are only for explaining the present application, and should not be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different implementations or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and arrangements of specific examples are described below. Of course, they are examples only and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or reference letters in various instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Referring to FIGS. 1-3 , the sub-frame 10 provided by the embodiment of the present application is used in a vehicle 100 . Vehicle 100 includes side members 20 . The subframe 10 includes a body 11 , a bracket 12 , a suspension 13 and a vertical plate 14 . The bracket 12 is disposed on the body 11 . Suspension 13 is connected to bracket 12 . A vertical panel 14 is connected to the bracket 12 , the vertical panel 14 is intended to be connected to a side member 20 of the vehicle 100 .

Please refer to FIG. 1 and FIG. 3 , a vehicle 100 provided by an embodiment of the present application includes a subframe 10 and a longitudinal beam 20 . The subframe 10 is connected to a side member 20 .

In this way, through the setting of the vertical plate 14, the longitudinal beam 20 can be connected with the suspension 13, the bracket 12 and the body 11 on the sub-frame 10 as a whole, thereby improving the dynamic stiffness of the vehicle 100 in the longitudinal direction and solving the problem of vehicle stiffness. 100 NVH vibration and noise problems, and improve the comfort of the vehicle 100. At the same time, the problem that the bracket 12 and the vehicle body 30 cannot be fixed after the subframe 10 and the vehicle body 30 of the vehicle 100 are combined can be avoided.

Specifically, the subframe 10 is an auxiliary device through which the suspension connector of the vehicle 100 can be connected with the body 30 of the vehicle 100 . After the vehicle 100 is equipped with the subframe 10, the suspension components of the vehicle 100 first transmit the vibration to the subframe 10, and then transmit the vibration to the vehicle body 30 through the buffer of the subframe 10, thereby greatly reducing the vibration amplitude and improving Vehicle comfort.

The body 11 can be made of metal material to ensure the strength and rigidity of the body 11 . In one embodiment, the body 11 is made of 45 gauge steel to ensure the safety performance of the subframe 10 .

In yet another embodiment, the body 11 is made of aluminum alloy, so as to ensure the safety of the sub-frame 10 and at the same time reduce the weight of the sub-frame 10 to increase the cruising range of the vehicle 100 .

The main body 11 basically has a rectangular frame structure. The main body 11 in this embodiment includes a front cross beam 111 , a left longitudinal beam 112 , a rear cross beam 113 and a right longitudinal beam (not shown) connected in sequence. The main body 11 can be formed integrally, or formed independently, and then welded or bolted, and the forming method of the main body 11 is not limited here.

The front beam 111 and the rear beam 113 are arranged at intervals along the length direction of the subframe 10, the left longitudinal beam 112 and the right longitudinal beam are arranged at intervals along the length direction of the subframe 10, and the left longitudinal beam 112 connects the front beam 111 and the rear beam on the left side. The cross beam 113 and the right longitudinal beam connect the front cross beam 111 and the rear cross beam 113 to form a rectangular frame structure.

The left side rail 112 is substantially parallel to the side rail 20 of the vehicle 100 with the right side rail.

The bracket 12 is used to support the suspension 13 . The bracket 12 can be fixed on the body 11 by means of bolt connection. The suspension 13 can be connected to the bracket 12 by means of bolt connection, so that the suspension 13 is arranged on the body 11 through the bracket 12, and the longitudinal beam 20 is connected to the bracket 12 through the vertical plate 14, so that the longitudinal beam 20 and the suspension 13 can be realized. , the connection between the bracket 12 and the main body 11 increases the dynamic stiffness of the vehicle 100 in the longitudinal direction Y, thereby solving the problem of the vibration and noise of the vehicle 100 increasing the NVH performance of the vehicle 100 .

The mount 13 is used to connect the powertrain of the vehicle 100 with the body 30 . Specifically, the mount 13 can support the powertrain of the vehicle 100, reduce the impact of the vibration of the powertrain on the vehicle 100, limit the vibration of the powertrain, and ensure the NVH performance of the vehicle.

Among them, the dynamic stiffness refers to the ability to resist deformation under dynamic load, and insufficient dynamic stiffness will adversely affect the fatigue life of the structural parts of the body 30 of the vehicle 100 and the comfort of the entire vehicle.

In one embodiment, after the vertical beam 20 is connected to the bracket 12 by setting the vertical plate 14, the dynamic stiffness of the vehicle 100 along the longitudinal direction Y can be increased from 1.4Kn.mm to 12Kn.mm, thereby greatly improving the vehicle 100. comfort.

It should be noted that the number of brackets 12 and suspensions 13 may be multiple, and the number of brackets 12 and suspensions 13 is the same, and one bracket 12 is correspondingly connected with one suspension 13 . In another embodiment, the number of brackets 12 is two, brackets 12 are respectively arranged on the left side beam 112 and the right side beam, each bracket 12 is connected with a suspension 13, and each bracket 12 A vertical plate 14 is also provided, and the longitudinal beams 20 on both sides of the vehicle 100 are connected to the bracket 12 through the connection with the vertical plate 14, so that the longitudinal beams 20 are connected with the sub-frame 10 to form an integral body to lift the vehicle 100 in the longitudinal direction Y. The dynamic stiffness of the vehicle 100 can be improved, thereby solving the NVH vibration and noise problem of the vehicle 100 and improving the comfort of the vehicle 100 .

2 and 4, in some embodiments, the bracket 12 is formed with a mounting plate 121, the mounting plate 121 is used to connect the vertical plate 14, and the vertical plate 14 is vertically arranged on the mounting plate 121 so as to be aligned with the side 21 of the longitudinal beam 20. connect. In this way, the mounting plate 121 can make the vertical plate 14 more stably arranged on the bracket 12 , thereby improving the stability of the connection between the vertical plate 14 and the longitudinal beam 20 . In addition, the connection of the side surface 21 of the longitudinal beam 20 to the sub-frame 10 can increase the dynamic stiffness of the vehicle 100 in the width direction.

The mounting plate 121 is disposed on a side of the bracket 12 away from the body 11 . Wherein, the vertical plate 14 can be made of metal material to ensure the strength of the vertical plate 14 and prevent the vertical plate 14 from being easily deformed by force. The shape of the vertical plate 14 can be a rectangle, a trapezoid, or a cylinder, etc., which is not limited here. The vertical plate 14 can be connected to the mounting plate 121 by welding, and the vertical plate 14 and the mounting plate 121 can also be integrally formed, etc. The connection method between the vertical plate 14 and the mounting plate 121 is not limited here.

Referring to Fig. 1, Fig. 2 and Fig. 5, in some embodiments, the vertical plate 14 includes a first reinforcing rib 141, a connecting plate 142 and a second reinforcing rib 143, and the connecting plate 142 connects the first reinforcing rib 141 and the second reinforcing rib 141. The reinforcing ribs 143 are arranged along the extending direction A of the longitudinal beam 20 , and the first reinforcing rib 141 and the second reinforcing rib 143 are arranged at intervals. In this way, the first reinforcing rib 141 and the second reinforcing rib 143 can play a role in strengthening the rigidity of the connecting plate 142 and prevent the vertical plate 14 from being deformed by force and affecting the connection with the longitudinal beam 20 .

Specifically, the first reinforcing rib 141 and the second reinforcing rib 143 extend from the connecting plate 142 toward the direction away from the longitudinal beam 20 , the connecting plate 142 is arranged parallel to the side 21 of the longitudinal beam 20 , and the connecting plate 142 is used to connect with the longitudinal beam 20 , the first reinforcing rib 141 and the second reinforcing rib 143 strengthen and support the connecting plate 142, so as to prevent the connecting plate 142 from being bent along the height direction of the subframe 10 and affecting the connection with the longitudinal beam 20,

Wherein, the first reinforcing rib 141 , the connecting plate 142 and the second reinforcing rib 143 may be connected by welding or integrally formed, which is not limited here. It should be pointed out that the extending direction A of the longitudinal beam 20 is parallel to the longitudinal direction Y of the vehicle 100 .

In one embodiment, along the extending direction A of the longitudinal beam 20, the first reinforcing rib 141 and the second reinforcing rib 143 are arranged in parallel, and both the first reinforcing rib 141 and the second reinforcing rib 143 are arranged perpendicular to the connecting plate 142, and are connected to The plate 142 is arranged parallel to the stringer 20 . In one embodiment, an angle is formed between the first reinforcing rib 141 and the second reinforcing rib 143 , the connecting plate 142 connects the first reinforcing rib 141 and the second reinforcing rib 143 , and the connecting plate 142 is arranged parallel to the longitudinal beam 20 .

Please refer to FIG. 1 and FIG. 2 , in some embodiments, there are two vertical plates 14 , and the two vertical plates 14 are arranged on the installation plate 121 along the extending direction A of the longitudinal beam 20 . In this way, the two vertical plates 14 are all connected to the longitudinal beam 20, and the stability of the connection between the longitudinal beam 20 and the bracket 12 can be greatly improved by setting the two vertical plates 14, so as to avoid falling off, and at the same time, the longitudinal beam 20 can be connected to the auxiliary vehicle. The frame 10 is connected as a whole to improve the dynamic stiffness of the vehicle 100 in the longitudinal direction Y and solve the problem of NVH vibration and noise.

It can be understood that the number of vertical plates 14 can be multiple, such as two, three, four or five, etc., which is not limited here. Along the extension direction A of the longitudinal beam 20, a plurality of vertical plates 14 are arranged on the mounting plate 121 at intervals, and the plurality of vertical plates 14 are all connected to the longitudinal beam 20, thereby greatly improving the stability of the connection between the longitudinal beam 20 and the bracket 12 ,

Referring to FIG. 1 and FIG. 2 , in some embodiments, along the extending direction A of the longitudinal beam 20 , the suspension 13 is arranged between two vertical plates 14 . In this way, when the longitudinal beam 20 is impacted and the impact force is transmitted to the vertical plate 14, along the extension direction A of the longitudinal beam 20, the suspension 13 can reduce the impact of engine vibration on the vehicle 100 from both sides and limit the total power of the vehicle. The resulting jitter amount.

In some embodiments, along a second direction B perpendicular to the extension direction A of the longitudinal beam 20 , the distance between the vertical plate 14 and the longitudinal beam 20 is smaller than the distance between the suspension 13 and the longitudinal beam 20 . In this way, the suspension 13 can play a role of avoiding the longitudinal beam 20 so as to facilitate the connection of the longitudinal beam 20 and the vertical plate 14 .

Referring to FIG. 1 , FIG. 2 and FIG. 4 , in some embodiments, a recessed portion 1211 is formed on the mounting plate 121 , and the recessed portion 1211 is used to accommodate part of the longitudinal beam 20 . In this way, when the longitudinal beam 20 is connected with the vertical plate 14 , the recessed portion 1211 can be used to carry part of the longitudinal beam 20 , and at the same time, the installation height of the longitudinal beam 20 on the sub-frame 10 can also be reduced.

Please refer to FIG. 1 , FIG. 2 and FIG. 4 , in some embodiments, the subframe 10 includes a first connecting member 15 , and the vertical plate 14 is connected to the longitudinal beam 20 of the vehicle 100 through the first connecting member 15 . In this way, the longitudinal beam 20 and the vertical plate 14 are connected through the first connecting piece 15, so that the longitudinal beam 20 is connected with the suspension 13, the bracket 12 and the main body 11 on the sub-frame 10 as a whole, thereby lifting the vehicle The dynamic stiffness of the 100 in the longitudinal direction Y solves the NVH vibration and noise problem of the vehicle 100 and improves the comfort of the vehicle 100 .

In one embodiment, the first connecting member 15 is a bolt, and the bolt passes through the longitudinal beam 20 and the vertical plate 14 and is screwed with a nut to complete the connection between the longitudinal beam 20 and the vertical plate 14 .

Wherein, the number of the first connecting members 15 may be multiple, such as two, three or four, etc., which is not limited here. A plurality of first connecting members 15 can be disposed at intervals on a vertical panel 14 , and the plurality of first connecting members 15 can improve the stability of the connection between the longitudinal beam 20 and the vertical panel 14 to improve the comfort of the vehicle 100 .

Please refer to FIG. 1 , FIG. 2 and FIG. 4 again. In some embodiments, the sub-frame 10 further includes a bushing 16 , and the first connecting member 15 passes through the bushing 16 to connect the vertical plate 14 and the longitudinal beam of the vehicle 100 20. In this way, the connection between the longitudinal beam 20 and the vertical plate 14 can be strengthened by using the bushing 16 , so that the vertical plate 14 can be connected with the longitudinal beam 20 more stably.

Specifically, when the first connecting member 15 passes through the bushing 16 to connect the vertical panel 14 and the longitudinal beam 20 of the vehicle 100 , one end of the bushing 16 is connected to the vertical panel 14 , and the other end is connected to the longitudinal beam 20 . The shaft sleeve 16 can be sleeved on the outside of the first connecting piece 15 , and can also protect the first connecting piece 15 and reduce wear on the first connecting piece 15 .

Wherein, the shaft sleeve 16 can be made of a material with high wear resistance, so that the replacement times of the shaft sleeve 16 can be reduced to save maintenance costs. In one embodiment, the shaft sleeve 16 is made of steel. Wherein, the shaft sleeve 16 can be a hollow cylinder, or a hollow cylinder with steps, and the shape of the shaft sleeve 16 is not limited here.

Referring to FIGS. 1 and 2 , in some embodiments, the subframe 10 may further include a second connecting member 17 , and the suspension 13 is connected to the bracket 12 through the second connecting member 17 . In this way, the suspension 13 and the bracket 12 are connected through the second connecting piece 17, so that the suspension 13 can be more stably arranged on the bracket 12, ensuring the stability of the installation of the suspension 13 so that the suspension 13 can be effectively reduced and The transmission of engine vibration is controlled, so as to solve the NVH vibration and noise problem of the vehicle 100 and improve the comfort of the vehicle 100 .

Wherein, the number of the second connecting parts 17 can be multiple, and the plurality of second connecting parts 17 can improve the stability of the connection between the suspension 13 and the bracket 12, reduce the impact of the vibration of the engine on the vehicle 100, and avoid The suspension 13 shakes or falls when the vehicle 100 is running. In one embodiment, four second connectors 17 are used to pass through the four corners of the bracket 12 and the suspension 13, and are screwed with four nuts to fix the suspension 13 on the bracket 12. The second connection Part 17 is a bolt.

In another embodiment, the nuts are first welded on the side of the vertical plate 14 facing away from the longitudinal beam 20, and then the vertical plate 14 is welded on the bracket 12, and the suspension 13 is fixed to the bracket through four second connecting pieces 17 12 on. Then the powertrain device of the vehicle 100 (comprising the suspension 13 and the body 11) is lifted as a whole and assembled with the vehicle body 30. The longitudinal beam 20 is in contact with the vertical plate 14 , and the nuts on the first connecting member 15 and the vertical plate 14 are fastened with an electric gun, thereby completing the assembly of the sub-frame 10 and the body 30 of the vehicle 100 . The setting of the vertical plate 14 can make the longitudinal beam 20 of the vehicle body 30 and the sub-frame 10 connected as a whole, thereby improving the dynamic stiffness of the vehicle 100 in the longitudinal direction Y, thereby solving the NVH vibration and noise problem of the vehicle 100 .

In the description of this specification, descriptions that refer to the terms "one embodiment," "certain embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" mean that a combination of The specific features, structures, materials or features described in the manner or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the application is defined by the claims and their equivalents.

Claims (10)

1. A sub frame for a vehicle, the vehicle including a longitudinal beam, the sub frame comprising:

a body;

a bracket disposed on the body;

a suspension connected with the bracket; and

the vertical plate is connected with the support and is used for being connected with the longitudinal beam.

2. The subframe of claim 1 wherein said support bracket is formed with a mounting plate for attachment to said riser, said riser being vertically disposed on said mounting plate for attachment to a side of said side member.

3. The subframe of claim 2 wherein said riser includes a first rib, a web and a second rib, said web connecting said first rib and said second rib, said first rib and said second rib being spaced apart along the direction of extension of said side member.

4. The subframe of claim 2 wherein said vertical plates are two in number, and two vertical plates are disposed on said mounting plate along the direction of extension of said longitudinal beams.

5. The subframe of claim 4 wherein said suspension is disposed between said risers along a direction of extension of said side rails.

6. The subframe of claim 2 wherein said mounting plate defines a recess for receiving a portion of said side member.

7. The subframe of claim 1 wherein said subframe includes a first connector, said riser being connected to a longitudinal rail of said vehicle by said first connector.

8. The subframe of claim 7 further comprising a bushing, wherein said first connector is disposed through said bushing to connect said riser to a longitudinal member of said vehicle.

9. The subframe of claim 1 wherein said subframe includes a second connector, said suspension being connected to said bracket by said second connector.

10. A vehicle, characterized by comprising:

a stringer; and

the subframe of any one of claims 1-9, wherein said subframe is coupled to said rail.

Images