CN111376977A - Auxiliary frame - Google Patents
Auxiliary frame Download PDFInfo
- Publication number
- CN111376977A CN111376977A CN201811649006.6A CN201811649006A CN111376977A CN 111376977 A CN111376977 A CN 111376977A CN 201811649006 A CN201811649006 A CN 201811649006A CN 111376977 A CN111376977 A CN 111376977A
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- Prior art keywords
- suspension bracket
- bracket
- cross beam
- longitudinal
- subframe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses an auxiliary frame which comprises a front cross beam, a first longitudinal beam, a rear cross beam and a second longitudinal beam which are sequentially connected, wherein the front cross beam, the first longitudinal beam, the rear cross beam and the second longitudinal beam form a rectangular frame structure after being connected; the rear cross beam is connected with the connecting surface of the first longitudinal beam and the second longitudinal beam is an inclined surface, and the end part of the first longitudinal beam and the second longitudinal beam, which are connected with the front cross beam, is provided with a notch groove for buckling the front cross beam. The invention reduces the material types required for producing the auxiliary frame, saves the die sinking cost and reduces the welding process requirement.
Description
Technical Field
The invention relates to the field of electric automobiles, in particular to an auxiliary frame.
Background
In an electric automobile, an auxiliary frame is an important component of an automobile chassis, and the auxiliary frame is used as a carrier of key parts such as front and rear suspensions and the like, and plays an important role in the safety, the controllability and the NVH performance of the whole automobile. The auxiliary frame is a frame for supporting front and rear axle suspensions, the suspensions are connected with a vehicle body through the auxiliary frame, and the design key point is that the overlapping of a frame connection peripheral structure is realized through the structural design of the frame, and the frame connection peripheral structure comprises guide mechanisms such as swing arms, pull rods, longitudinal arms and the like; a support structure such as a suspension bracket; a vehicle body and the like. In addition, the requirements of the subframe on the mode shape and rigidity are also met. Therefore, in the current automobile research and development process, a new auxiliary frame is designed for matching with each new automobile type, so that the automobile development period is longer, and the development expenditure is higher. The conventional auxiliary frame structure is mainly realized by adopting a large number of stamping parts and hydraulic forming pipe beam welding modes; the subframe is light, and is an inevitable trend of subframe development. Two main disadvantages of the existing subframe structures are: 1. the die sinking cost for stamping parts and hydroforming pipes is high; 2. the welding process between the stamped parts is complicated.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a subframe.
The invention is realized according to the following technical scheme.
The utility model provides an auxiliary frame, is including the front beam, first longeron, back crossbeam and the second longeron that connect gradually, the front beam first longeron the back crossbeam with form the rectangle frame structure after the second longeron is connected.
Furthermore, the connection surface of the rear cross beam connected with the first longitudinal beam and the second longitudinal beam is an inclined surface, and the end part of the first longitudinal beam connected with the second longitudinal beam connected with the front cross beam is provided with a notch groove for buckling the front cross beam.
Furthermore, a suspension bracket is further arranged on the second longitudinal beam and comprises a suspension bracket main body and a suspension bracket connecting plate, the horizontal cross section of the suspension bracket main body is in a bow shape, and the suspension bracket connecting plate is connected to the top surface and the side surface of the suspension bracket main body.
Furthermore, more than one rear connecting bracket is also arranged on the rear cross beam, and the rear connecting bracket connects the lap joint cross beam to the rear cross beam; a distribution box bracket is arranged between every two adjacent rear connecting brackets; the distribution box support is of an integrally formed structure and comprises an H-shaped supporting surface, and two sides of the supporting surface are turned downwards to form flanges.
Furthermore, a front suspension bracket is arranged on the front cross beam, and the front suspension bracket is integrally of an inverted U-shaped structure and comprises support columns on two sides and a top plate for connecting the two support columns; the roof includes roof top surface and roof lateral wall, and the roof lateral wall laminates with two support columns.
Furthermore, the side wall of the top plate of the front suspension support is also connected with an auxiliary mounting support, so that one end of the auxiliary mounting support is connected with the auxiliary frame, and the other end of the auxiliary mounting support is connected with the front vehicle body.
Furthermore, the connecting surface of the rear cross beam, which is connected with the first longitudinal beam and the second longitudinal beam, is an inclined surface, and the end part of the first longitudinal beam and the second longitudinal beam, which is connected with the front cross beam, is provided with a notch groove for buckling the front cross beam;
the second longitudinal beam is also provided with a suspension bracket, the suspension bracket comprises a suspension bracket main body and a suspension bracket connecting plate, the horizontal section of the suspension bracket main body is in a bow shape, and the suspension bracket connecting plate is connected to the top surface and the side surface of the suspension bracket main body;
the rear cross beam is also provided with more than one rear connecting bracket, and the rear connecting bracket connects the lap joint cross beam to the rear cross beam; a distribution box bracket is arranged between every two adjacent rear connecting brackets; the distribution box support is of an integrally formed structure and comprises an H-shaped supporting surface, and two sides of the supporting surface are turned downwards to form flanges;
the front beam is provided with a front suspension bracket which is integrally in an inverted U-shaped structure and comprises support columns on two sides and a top plate for connecting the two support columns; the top plate comprises a top plate top surface and a top plate side wall, and the top plate side wall is attached to the two support columns;
the roof side wall of the front suspension support is also connected with an auxiliary mounting support, so that one end of the auxiliary mounting support is connected with the auxiliary frame, and the other end of the auxiliary mounting support is connected with the front vehicle body.
Further, a motor controller mounting bracket is arranged on the first longitudinal beam, and rear tie rod brackets are respectively arranged on the left side and the right side of the rear cross beam; the motor controller mounting bracket and the rear tie rod bracket are both of an integrally formed structure.
Furthermore, a high-voltage wire supporting plate is connected between the front cross beam and the rear cross beam; the high-voltage wire supporting plate is connected with the front cross beam and the rear cross beam in a welding mode.
A vehicle comprising a subframe as claimed in any preceding claim.
The invention has the advantages and beneficial effects that:
according to the invention, the auxiliary frame is made of the sectional materials, compared with the traditional scheme, high die sinking cost is not required to be borne, and each component of the frame is replaced by the sectional materials as much as possible, so that the whole production cost is reduced, and the difficulty of material management is also reduced; in addition, the connection between the profiles is relatively standard, which is beneficial to the welding connection in the assembly stage, and avoids the complex welding process of the traditional stamping part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic structural view of the main body of the suspension bracket of the present invention;
FIG. 4 is a schematic structural view of a suspension bracket attachment plate of the present invention;
FIG. 5 is a top perspective view of the distribution box bracket of the present invention;
fig. 6 is a bottom perspective view of the distribution box bracket of the present invention;
FIG. 7 is a side view of the present invention;
fig. 8 is a schematic structural view of an auxiliary mounting bracket of the present invention.
Wherein, 1, a front beam; 2. a first stringer; 3. a high-voltage wire support plate; 4. a rear cross member; 5. a second stringer; 6. a suspension bracket; 61. a suspension mount body; 62. a suspension bracket connection plate; 7. a motor controller mounting bracket; 8. a front suspension bracket; 9. the rear connecting bracket; 10. overlapping the cross beams; 11. a distribution box support; 111. a support surface; 112. flanging; 113. reinforcing ribs; 114. welding the part; 12. a rear tie rod bracket; 13. a high voltage harness support; 14. auxiliary mounting brackets; 141. a first fixed part; 142. a connecting portion; 143. a second fixed part; 144. a groove; 145 to secure the aperture.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the structures or elements so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1 to 8, the subframe comprises a front cross beam 1, a first longitudinal beam 2, a rear cross beam 4 and a second longitudinal beam 5 which are connected in sequence, wherein the front cross beam 1, the first longitudinal beam 2, the rear cross beam 4 and the second longitudinal beam 5 are connected to form a rectangular frame structure.
The rear cross beam 4 is connected with the connecting surface of the first longitudinal beam 2 and the second longitudinal beam 5 and is an inclined surface, and the end part of the first longitudinal beam 2 and the second longitudinal beam 5, which is connected with the front cross beam 1, is provided with a notch groove for buckling the front cross beam 1.
The connecting surface of the rear cross beam 4, which connects the first longitudinal beam 2 and the second longitudinal beam 5, is an inclined surface, and the inclined surface is an inclined surface which is horizontally inclined upwards from the front of the vehicle to the rear of the vehicle.
With the above arrangement, the first longitudinal beam 2 and the second longitudinal beam 5 can be regarded as beams lifted by the front cross beam 1 and the rear cross beam 4. The first longitudinal beam 2 and the second longitudinal beam 5 are welded on the front cross beam 1 after being lapped, the other end of the first longitudinal beam is supported from the rear by using an inclined plane arranged on the rear cross beam as a bearing, and then the first longitudinal beam and the second longitudinal beam 5 are combined, so that a notch groove arranged at the front end of the second longitudinal beam can be embedded into the front cross beam 1, and the mutual matching is better completed.
The second longitudinal beam 5 is further provided with a suspension bracket 6 which comprises a suspension bracket main body 61 and a suspension bracket connecting plate 62, the horizontal section of the suspension bracket main body 61 is in a bow shape, and the suspension bracket connecting plate 62 is connected to the top surface and the side surface of the suspension bracket main body 61.
The horizontal cross section of the suspension bracket main body 61 is in a bow shape, the strength of the suspension bracket can be greatly enhanced, the strength of the suspension bracket can be enhanced, the length or the area of a connecting line or a connecting surface of the suspension bracket and the second longitudinal beam 5 can be greatly increased, and the connecting strength is increased. This suspension support main part 61 top is equipped with outside arch, cooperates suspension support connecting plate 62's cladding is connected, can increase suspension support connection suspension structure's contact surface, can provide the scope bigger, more stable connection face.
More than one rear connecting support 9 is further arranged on the rear cross beam 4, and preferably, the number of the rear connecting supports 9 is three, and the rear connecting supports point to the upper part of the vehicle body behind the vehicle body; the connecting brackets 9 connect the lap beam 10 to the rear beam 4, the lap beam 10 being parallel to the rear beam 4.
A distribution box bracket 11 is arranged between two adjacent rear connecting brackets 9; the distribution box bracket 11 is of an integrally formed structure, and has the advantages of high structural strength, few welding spots, simple structure and convenience in use; the distribution box bracket 11 comprises an H-shaped supporting surface 111, a reinforcing rib 113 is formed on a connecting beam in the middle of the supporting surface 111, two sides of the supporting surface 111 are turned downwards to form flanges 112, the formed flanges 112 are of a triangular structure, and the rear ends of the flanges 112 are turned outwards to form welding parts 114 which are fixed with the rear connecting bracket 9.
The flanging 112 is a flanging formed by directly stamping the distribution box bracket 11, the flanging 112 serves as a reinforcing structure for reinforcing the distribution box bracket 11 on one hand, and also replaces an oblique beam to enable a triangular connecting structure to be formed between the distribution box bracket 11 and the rear connecting bracket 9 on the other hand, meanwhile, the flanging 112 serves as a connecting structure for finally connecting the distribution box bracket 11 to a frame, and the distribution box bracket 11 is welded to the frame through the flanging 112.
The front beam 1 is provided with a front suspension bracket 8, the front suspension bracket 8 is integrally of an inverted U-shaped structure and comprises support columns on two sides and a top plate for connecting the two support columns, the two support columns are square tube profiles, and the top plate is an angle steel profile; the roof includes roof top surface and roof lateral wall, and the roof top surface is fixed with the top surface of two support columns, and the roof lateral wall laminates with the lateral wall of two support columns.
The roof side wall of the front suspension bracket 8 is also connected with an auxiliary mounting bracket 14, and the auxiliary mounting bracket 14 is positioned in front of the front suspension bracket 8, so that one end of the auxiliary mounting bracket is connected with the auxiliary frame, and the other end of the auxiliary mounting bracket is connected with the front vehicle body.
The auxiliary mounting bracket 14 is arc-shaped as a whole and comprises a first fixing part 141 and a second fixing part 143 which are arranged at a certain angle and a connecting part 142 arranged between the first fixing part and the second fixing part, and an elongated groove 144 is formed on the connecting part 142; the first fixing portion 141 is connected to a roof side wall of the front suspension bracket 8, the second fixing portion 143 is connected to the front vehicle body, and the second fixing portion 143 is further provided with a fixing hole 145 fixed to the front vehicle body.
In the prior art, when the front cross beam 1 is connected and fixed with a front vehicle body, the connecting points are located on two sides of the front cross beam 1, and after other parts are carried on the auxiliary frame, the front cross beam 1 can fluctuate up and down to some extent by the aid of the other parts, so that the connecting points need to be added in the middle of the front cross beam 1, vibration amplitude of the front cross beam 1 is reduced, and service life is prolonged. Through the arrangement of the structure, a connecting point is additionally arranged in the middle of the front cross beam 1, the whole front cross beam is arc-shaped, the connecting part 142 is provided with the slender groove 144, the structure enables the front cross beam to have certain strength and certain elasticity, and the requirements of the support on rigidity and toughness are well met.
A motor controller mounting bracket 7 is arranged on the first longitudinal beam 2, and rear tie rod brackets 12 are respectively arranged on the left side and the right side of the rear cross beam 4; the motor controller mounting bracket 7 and the rear tie rod bracket 12 are both of an integrally formed structure. The motor controller mounting bracket 7 is formed by punching. The rear tie rod bracket 12 and the rear cross beam 4 are fixed by welding.
A high-voltage wire supporting plate 3 is connected between the front cross beam 1 and the rear cross beam 4; the high-voltage wire support plate 3 is connected with the front cross beam 1 and the rear cross beam 4 in a welding mode.
Two high-voltage wire supporting plates 3 are arranged between the front cross beam 1 and the rear cross beam 4, and a high-voltage wire harness support 13 is arranged on one high-voltage wire supporting plate 3.
The high-voltage wire supporting plate 3 is formed by punching plates.
A plurality of fixing holes for connecting a front vehicle body are symmetrically formed on the left side and the right side of the front cross beam 1; a plurality of fixing holes for connecting a rear vehicle body are formed at equal intervals on the lap cross member 10.
A vehicle comprising a subframe as claimed in any preceding claim.
The first longitudinal beam 2 is a right longitudinal beam of a vehicle, and the second longitudinal beam 5 is a left longitudinal beam of the vehicle.
The front cross beam 1, the rear cross beam 4, the second longitudinal beam 5, the first longitudinal beam 2, the rear connecting bracket 9 and the lap joint cross beam 10 are all square tube profiles, so that the production cost is reduced, the welding process is simplified, and the application prospect is wide.
While embodiments of the present application 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 application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides an auxiliary frame, its characterized in that, including front beam (1), first longeron (2), rear frame member (4) and second longeron (5) that connect gradually, front beam (1) first longeron (2) rear frame member (4) with form the rectangle frame structure after second longeron (5) are connected.
2. A subframe according to claim 1, wherein the connecting surface of said rear cross member (4) connecting said first longitudinal member (2) and said second longitudinal member (5) is a slope, and the end of said first longitudinal member (2) and said second longitudinal member (5) connecting said front cross member (1) is provided with a notch for engaging said front cross member (1).
3. The subframe of claim 1 or 2 wherein said second longitudinal member (5) is further provided with a suspension bracket (6) comprising
A suspension bracket body (61) and
a suspension bracket connecting plate (62),
the horizontal section of the suspension bracket main body (61) is in a bow shape, and the suspension bracket connecting plate (62) is connected to the top surface and the side surface of the suspension bracket main body (61).
4. The subframe of claim 1 or 2 wherein said rear cross member (4) is further provided with more than one rear attachment bracket (9), said rear attachment brackets (9) attaching said lap cross member (10) to said rear cross member (4); a distribution box bracket (11) is arranged between every two adjacent rear connecting brackets (9); the distribution box support (11) is of an integrally formed structure and comprises an H-shaped supporting surface (111), and two sides of the supporting surface (111) are turned downwards to form flanges (112).
5. The auxiliary frame according to claim 1 or 2, wherein the front cross beam (1) is provided with a front suspension bracket (8), and the front suspension bracket (8) is integrally of an inverted U-shaped structure and comprises support columns on two sides and a top plate for connecting the two support columns; the roof includes roof top surface and roof lateral wall, and the roof lateral wall laminates with two support columns.
6. The subframe of claim 5 wherein the roof side wall of the front suspension bracket (8) is further connected to an auxiliary mounting bracket (14) having one end connected to the subframe and the other end connected to the front body.
7. The subframe according to claim 1, wherein the connecting surface of the rear cross member (4) connecting the first longitudinal member (2) and the second longitudinal member (5) is an inclined surface, and the end of the first longitudinal member (2) and the second longitudinal member (5) connecting the front cross member (1) is provided with a notch groove for buckling the front cross member (1);
the second longitudinal beam (5) is further provided with a suspension bracket (6), the suspension bracket comprises a suspension bracket main body (61) and a suspension bracket connecting plate (62), the horizontal section of the suspension bracket main body (61) is in a bow shape, and the suspension bracket connecting plate (62) is connected to the top surface and the side surface of the suspension bracket main body (61);
more than one rear connecting bracket (9) is also arranged on the rear cross beam (4), and the rear connecting bracket (9) connects the lap joint cross beam (10) to the rear cross beam (4); a distribution box bracket (11) is arranged between every two adjacent rear connecting brackets (9); the distribution box support (11) is of an integrally formed structure and comprises an H-shaped supporting surface (111), and two sides of the supporting surface (111) are turned downwards to form flanges (112);
the front beam (1) is provided with a front suspension bracket (8), the front suspension bracket (8) is integrally of an inverted U-shaped structure and comprises support columns on two sides and a top plate for connecting the two support columns; the top plate comprises a top plate top surface and a top plate side wall, and the top plate side wall is attached to the two support columns;
and the side wall of the top plate of the front suspension bracket (8) is also connected with an auxiliary mounting bracket (14), so that one end of the auxiliary mounting bracket is connected with the auxiliary frame, and the other end of the auxiliary mounting bracket is connected with the front vehicle body.
8. The subframe according to claim 1 or 2 wherein said first longitudinal beam (2) is provided with a motor controller mounting bracket (7), and said rear cross beam (4) is provided with rear tie rod brackets (12) on the left and right sides thereof, respectively; the motor controller mounting bracket (7) and the rear tie rod bracket (12) are both of an integrally formed structure.
9. The subframe according to claim 1 or 2, wherein a high-voltage wire support plate (3) is further connected between the front cross member (1) and the rear cross member (4); the high-voltage wire supporting plate (3) is connected with the front cross beam (1) and the rear cross beam (4) in a welding mode.
10. A vehicle comprising the subframe of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649006.6A CN111376977A (en) | 2018-12-30 | 2018-12-30 | Auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649006.6A CN111376977A (en) | 2018-12-30 | 2018-12-30 | Auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111376977A true CN111376977A (en) | 2020-07-07 |
Family
ID=71213189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811649006.6A Pending CN111376977A (en) | 2018-12-30 | 2018-12-30 | Auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111376977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475204A (en) * | 2022-01-21 | 2022-05-13 | 奇瑞汽车股份有限公司 | Mount pad and vehicle |
-
2018
- 2018-12-30 CN CN201811649006.6A patent/CN111376977A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475204A (en) * | 2022-01-21 | 2022-05-13 | 奇瑞汽车股份有限公司 | Mount pad and vehicle |
| CN114475204B (en) * | 2022-01-21 | 2023-09-26 | 奇瑞汽车股份有限公司 | Mounting seat and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210319 Address after: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Applicant after: Yundu New Energy Automobile Co.,Ltd. Address before: No.19, Xinye 5th Street, West District, Binhai New Area, Tianjin 300462 Applicant before: TIANJIN QINGYUAN ELECTRIC VEHICLE Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| CB02 | Change of applicant information |
Address after: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Applicant after: Yundu New Energy Vehicle Co.,Ltd. Address before: 351100 no.729 Lihan Avenue, Shixi village, Jiangkou Town, Hanjiang District, Putian City, Fujian Province Applicant before: Yundu New Energy Automobile Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |