CN211107698U - Rear auxiliary frame for extended-range automobile and automobile - Google Patents
Rear auxiliary frame for extended-range automobile and automobile Download PDFInfo
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- CN211107698U CN211107698U CN201922167941.5U CN201922167941U CN211107698U CN 211107698 U CN211107698 U CN 211107698U CN 201922167941 U CN201922167941 U CN 201922167941U CN 211107698 U CN211107698 U CN 211107698U
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- suspension
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- longitudinal beam
- power assembly
- rear subframe
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Abstract
The application discloses a rear auxiliary frame for a range-extended automobile and a vehicle, wherein the rear auxiliary frame comprises a support body, a first suspension, a second suspension and a third suspension, the support body is provided with an accommodating cavity, and the accommodating cavity is used for accommodating a power assembly; the first suspension is arranged on one side of the bracket body; the second suspension is arranged on the other side of the bracket body and is opposite to the first suspension; the third suspension is arranged at one end of the bracket body; when the power assembly is installed on the rear auxiliary frame, the power assembly is located in the accommodating cavity, and the first suspension, the second suspension and the third suspension are respectively connected with the power assembly. The rear auxiliary frame is reasonable in structural design, the whole structure is strong, rigidity meets requirements, and the safety, stability and NVH performance of the automobile are guaranteed.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a rear auxiliary frame for a range-extended automobile and a vehicle with the rear auxiliary frame.
Background
The rear auxiliary frame is an important part on a passenger car, plays a role in reinforcing a framework and a structure in supporting a car body and assembling chassis parts (such as wheels, suspensions, a power assembly and the like), and plays a role in ensuring the performances of safety, stability, comfort and the like of the car.
The range-extended automobile rear auxiliary frame is greatly different from the traditional automobile rear auxiliary frame, and besides the functions and performance characteristics of the traditional automobile rear auxiliary frame, the range-extended automobile rear auxiliary frame also needs to consider the installation and arrangement of a power assembly system (a driving motor, a transmission, a control system and the like), so that the range-extended automobile rear auxiliary frame is large in structural space requirement, and higher in structural design and performance requirements. However, when the rear sub-frame of the existing extended range automobile is developed and designed, the structural design of each key connecting position is unreasonable, the connection is not firm, the overall structure is weak and the rigidity is insufficient, and the safety, the stability and the performance of NVH (noise, vibration and harshness) and the like of the automobile are affected.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the main object of the present application is to provide a rear subframe for a range-extended vehicle, which can ensure the safety of the vehicle, the stability of the vehicle, the NVH performance and the like.
In order to achieve the above purpose, the following technical solutions are specifically adopted in the present application:
the application provides a back sub vehicle frame for increasing journey car, increases journey car and includes power assembly, back sub vehicle frame includes:
the bracket body is provided with a containing cavity, and the containing cavity is used for containing the power assembly;
a first suspension disposed at one side of the bracket body;
the second suspension is arranged on the other side of the bracket body and is opposite to the first suspension;
a third suspension disposed at one end of the bracket body;
when the power assembly is installed on the rear auxiliary frame, the power assembly is located in the accommodating cavity, and the first suspension, the second suspension and the third suspension are respectively connected with the power assembly.
Preferably, the support body comprises a first longitudinal beam, a second longitudinal beam, a first cross beam and a second cross beam, the first cross beam and the second cross beam are arranged oppositely, the first longitudinal beam and the second longitudinal beam are arranged oppositely, two ends of the first longitudinal beam are respectively connected with the first cross beam and the second cross beam, two ends of the second longitudinal beam are respectively connected with the first cross beam and the second cross beam, the first suspension is arranged on the first longitudinal beam, the second suspension is arranged on the second longitudinal beam, and the third suspension is arranged on the second cross beam.
Preferably, the first suspension comprises a first mounting leg and a second mounting leg, and the first mounting leg and the second mounting leg are oppositely arranged on the first longitudinal beam.
Preferably, the second suspension includes a fixing frame and a mounting sleeve, the fixing frame is disposed on the second longitudinal beam, and the mounting sleeve is disposed on the fixing frame.
Preferably, the first cross beam is a circular tube beam, and the middle part of the circular tube beam is flat.
Preferably, the middle part of the first beam has a first plane and a second plane, the first plane and the second plane are both located on the XZ plane, and the first plane and the second plane are oppositely arranged.
Preferably, the first longitudinal beam and the second longitudinal beam are both circular tubular beams, and the middle parts of the first longitudinal beam and the second longitudinal beam are both provided with bent parts.
Preferably, the second beam is a square beam.
Preferably, the first longitudinal beam and the second longitudinal beam penetrate through the second cross beam respectively and are welded and fixed with the second cross beam.
Correspondingly, this application still provides a vehicle, and this vehicle includes vehicle body, powertrain and foretell back sub vehicle frame, back sub vehicle frame set up in the vehicle body, powertrain install in back sub vehicle frame.
Compared with the prior art, the rear auxiliary frame comprises a support body, a first suspension, a second suspension and a third suspension, wherein the support body is provided with a containing cavity for containing a power assembly, the first suspension is arranged on one side of the support body, the second suspension is arranged on the other side of the support body and is opposite to the first suspension, and the third suspension is arranged at one end of the support body; when the power assembly is installed on the rear auxiliary frame, the power assembly is located in the accommodating cavity, and the first suspension, the second suspension and the third suspension are respectively connected with the power assembly. The auxiliary frame is reasonable in structural design after the application, the overall structure is strong, the rigidity meets the requirements, and the safety, the stability and the NVH performance of the automobile are guaranteed.
Drawings
Fig. 1 is a perspective view of a rear subframe according to an embodiment of the present application.
FIG. 2 is a perspective view of another angle rear subframe of an embodiment of the present application.
FIG. 3 is a perspective view of a rear subframe with a powertrain mounted thereon according to an embodiment of the present disclosure.
The attached drawings are as follows:
1. a stent body; 10. an accommodating chamber; 11. a first cross member; 111. a first plane; 112. a second plane; 12. a second cross member; 121. a first mounting hole; 122. a second mounting hole; 13. a first stringer; 14. a second stringer; 2. a first suspension; 21. a first mounting leg; 22. a second mounting leg; 3. a second suspension; 31. a fixed mount; 32. installing a sleeve; 4. a third suspension; 5. a power assembly; 6. an overlapping component; 61. a first strap; 62. a second strap; 63. a third strap; 64. a fourth strap; 7. a first shock absorber mounting bracket; 8. a second damper mounting bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
Please refer to fig. 1 to 3, an embodiment of the present application discloses a rear subframe for a range-extended vehicle, the rear subframe includes a bracket body 1, a first suspension 2, a second suspension 3 and a third suspension 4, the bracket body 1 has a receiving cavity 10 for receiving a power assembly 5, the first suspension 2 is disposed on one side of the bracket body 1, the second suspension 3 is disposed on the other side of the bracket body 1 and is disposed opposite to the first suspension 2, and the third suspension 4 is disposed on one end of the bracket body 1. When the power assembly 5 is installed on the rear subframe, the power assembly 5 is located in the accommodating cavity 10, and the first suspension 2, the second suspension 3 and the third suspension 4 are respectively connected with the power assembly 5. The utility model provides a back sub vehicle frame structural design is reasonable, overall structure is stronger and rigidity satisfies the requirement, the safety of car has been guaranteed, the performance such as stable and NVH of operation, and through first suspension 2, second suspension 3 and third suspension 4 make power assembly 5 be fixed in the chamber 10 that holds of support body 1 in, and then the distribution of the load that makes power assembly 5 produce on the sub vehicle frame of back is more even, suspension decoupling zero rate has been guaranteed, make suspension decoupling zero rate can reach more than 80% in the principal direction.
Specifically, the bracket body 1 includes a first cross member 11, a second cross member 12, a first longitudinal member 13, and a second longitudinal member 14. During assembly, the first cross beam 11 and the second cross beam 12 are arranged oppositely, the first longitudinal beam 13 and the second longitudinal beam 14 are arranged oppositely, two ends of the first longitudinal beam 13 are connected with the first cross beam 11 and the second cross beam 12 respectively in a welding mode, and two ends of the second longitudinal beam 14 are connected with the first cross beam 11 and the second cross beam 12 respectively in a welding mode. The first suspension 2 is arranged on the first longitudinal beam 13, the second suspension 3 is arranged on the second longitudinal beam 14, and the third suspension 4 is arranged on the second transverse beam 12.
Further, the first beam 11 is a circular tube beam, and the middle portion of the first beam 11 has a first plane 111 and a second plane 112, the first plane 111 and the second plane 112 both lie on the XZ plane, and the first plane 111 and the second plane 112 are disposed opposite to each other so that the middle portion of the first beam 11 is flat. Through setting up first crossbeam 11 as the pipe roof beam, and set up to the platykurtic in the Z of the middle part of this pipe roof beam, promoted first crossbeam 11 effectively in the bearing capacity of Z to.
It is to be noted that the axial direction of the first cross member 11 is defined as an X direction, the axial direction of the first side member 13 or the second side member 14 is defined as a Y direction, and a direction perpendicular to the XY plane is defined as a Z direction.
The second beam 12 is a square beam structure formed by tailor welding two stamping metal plates, the structure has higher strength and rigidity in the Z direction, and the second beam 12 of the square beam structure has enough position space and can be provided with components such as a rear suspension, an exhaust hook and a cooling water mounting bracket.
The first longitudinal beam 13 and the second longitudinal beam 14 are circular tubular beams, and the middle portions of the first longitudinal beam 13 and the second longitudinal beam 14 are provided with bent portions. The first longitudinal beam 13 and the second longitudinal beam 14 have the same pipe diameter as the first transverse beam 11, so that the welding lines of the first transverse beam 11, the first longitudinal beam 13 and the second longitudinal beam 14 are long, and the connection strength is high.
The rear subframe further includes a first damper mounting bracket 7 and a second damper mounting bracket 8, the first suspension 2 includes a first mounting leg 21 and a second mounting leg 22, and the second suspension 3 includes a fixing bracket 31 and a mounting bushing 32. In order to strengthen the connection strength of each part of the bracket body 1, the bracket body 1 further comprises an overlapping assembly 6, the overlapping assembly 6 comprises a first overlapping plate 61, a second overlapping plate 62, a third overlapping plate 63 and a fourth overlapping plate 64, the first overlapping plate 61 and the second overlapping plate 62 are respectively arranged at the connection part of the first longitudinal beam 13 and the first cross beam 11 and are positioned at the upper side and the lower side of the first longitudinal beam 13 and the first cross beam 11 and are welded and fixed with the first longitudinal beam 13 and the first cross beam 11. The third bridging plate 63 and the fourth bridging plate 64 are respectively arranged at the connection part of the second longitudinal beam 14 and the first cross beam 11, are positioned at the upper side and the lower side of the second longitudinal beam 14 and the first cross beam 11, and are welded and fixed with the second longitudinal beam 14 and the first cross beam 11. The first damper mounting bracket 7 is welded and fixed to the first longitudinal beam 13 and the first strap 61, the first mounting leg 21 is welded and fixed to the first longitudinal beam 13 and the first damper mounting bracket 7, and the second mounting leg 22 is welded and fixed to the first longitudinal beam 13 and the first strap 61. The second damper mounting bracket 8 is welded and fixed with the third bridging plate 63 and the second longitudinal beam 14, the fixing frame 31 is welded and fixed with the second longitudinal beam 14 and the fourth bridging plate 64, and the mounting sleeve 32 is provided with the fixing frame 31.
In the embodiment, the parts are connected together in a welding mode, so that the connection strength of the first cross beam 11 and the first longitudinal beam 13 and the second longitudinal beam 14 is further improved, and the dynamic stiffness performance of the first suspension 2 and the second suspension 3 is effectively improved. In addition, the first suspension 2 is mutually welded with the first longitudinal beam 13, the first lap joint plate 61, the first shock absorber mounting bracket 7 and the like, so that the connection strength of the first suspension 2 is improved, the dynamic stiffness performance of the suspension point is also improved, the Z-direction dynamic stiffness reaches 7000N/mm, the X-direction dynamic stiffness and the Y-direction dynamic stiffness reach more than 10000N/mm, and the risk of transmitting vibration to a vehicle body is effectively reduced. The second suspension 3 is welded with the second longitudinal beam 14 and the fourth lap joint plate 64, so that the connection strength of the second suspension 3 is improved, the dynamic stiffness performance of the suspension point is also improved, the dynamic stiffness in the Z direction reaches 5500N/mm, the dynamic stiffness in the X direction and the dynamic stiffness in the Y direction reach more than 10000N/mm, and the risk of vibration transmission to a vehicle body is effectively reduced.
In order to further enhance the connection strength of each component of the bracket body 1, the second cross beam 12 is provided with a first mounting hole 121 and a second mounting hole 122, two ends of the first mounting hole 121 are respectively provided with a first flanging, two ends of the second mounting hole 122 are respectively provided with a second flanging, the first longitudinal beam 13 penetrates through the first mounting hole 121 and is welded and fixed with the first flanging, and the second longitudinal beam 14 penetrates through the second mounting hole 122 and is welded and fixed with the second flanging.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a back sub vehicle frame for increasing journey car, increases journey car includes the power assembly, its characterized in that, back sub vehicle frame includes:
the bracket body is provided with a containing cavity, and the containing cavity is used for containing the power assembly;
a first suspension disposed at one side of the bracket body;
the second suspension is arranged on the other side of the bracket body and is opposite to the first suspension;
a third suspension disposed at one end of the bracket body;
when the power assembly is installed on the rear auxiliary frame, the power assembly is located in the accommodating cavity, and the first suspension, the second suspension and the third suspension are respectively connected with the power assembly.
2. The rear subframe of claim 1 wherein said bracket body comprises a first longitudinal beam, a second longitudinal beam, a first cross beam and a second cross beam, said first cross beam and said second cross beam are disposed opposite to each other, said first longitudinal beam and said second longitudinal beam are disposed opposite to each other, said first longitudinal beam is connected at both ends thereof to said first cross beam and said second cross beam, said second longitudinal beam is connected at both ends thereof to said first cross beam and said second cross beam, respectively, said first suspension is disposed on said first longitudinal beam, said second suspension is disposed on said second longitudinal beam, and said third suspension is disposed on said second cross beam.
3. The rear subframe of claim 2 wherein said first suspension includes a first mounting leg and a second mounting leg, said first and second mounting legs being oppositely disposed from said first side member.
4. The rear subframe of claim 2 wherein said second suspension includes a mounting bracket and a mounting bushing, said mounting bracket being disposed on said second side member and said mounting bushing being disposed on said mounting bracket.
5. The rear subframe of claim 2 wherein said first cross member is a tubular beam and a middle portion of said tubular beam is configured to be flat.
6. The rear subframe of claim 5 wherein said first cross member has a first planar surface and a second planar surface in a central portion thereof, said first planar surface and said second planar surface both lying in an XZ plane, and said first planar surface and said second planar surface being disposed in opposing relation.
7. The rear subframe of claim 2 wherein said first and second side members are tubular members and a bend is provided in a central portion of each of said first and second side members.
8. The rear subframe of claim 2 wherein said second cross member is a square beam.
9. The rear subframe of claim 8 wherein said first and second side members are respectively disposed through and welded to said second cross member.
10. A vehicle comprising a vehicle body, a powertrain, and the rear subframe of any of claims 1-9, the rear subframe being disposed in the vehicle body, the powertrain being mounted to the rear subframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922167941.5U CN211107698U (en) | 2019-12-06 | 2019-12-06 | Rear auxiliary frame for extended-range automobile and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922167941.5U CN211107698U (en) | 2019-12-06 | 2019-12-06 | Rear auxiliary frame for extended-range automobile and automobile |
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| Publication Number | Publication Date |
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| CN211107698U true CN211107698U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922167941.5U Active CN211107698U (en) | 2019-12-06 | 2019-12-06 | Rear auxiliary frame for extended-range automobile and automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758183A (en) * | 2020-12-30 | 2021-05-07 | 东风汽车有限公司 | Rear auxiliary frame |
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2019
- 2019-12-06 CN CN201922167941.5U patent/CN211107698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758183A (en) * | 2020-12-30 | 2021-05-07 | 东风汽车有限公司 | Rear auxiliary frame |
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