CN218929600U - Car body rear end power transmission structure and car - Google Patents
Car body rear end power transmission structure and car Download PDFInfo
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- CN218929600U CN218929600U CN202222873132.8U CN202222873132U CN218929600U CN 218929600 U CN218929600 U CN 218929600U CN 202222873132 U CN202222873132 U CN 202222873132U CN 218929600 U CN218929600 U CN 218929600U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
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Abstract
The application provides a car body rear end biography power structure and vehicle, biography power structure includes: the rear floor framework structure comprises a left longitudinal beam and a right longitudinal beam which are arranged in parallel, and a first cross beam, a second cross beam and a third cross beam are sequentially connected between the left longitudinal beam and the right longitudinal beam in the direction from the head to the tail; the storage rack comprises a storage rack plate structure, a storage rack plate structure and a storage rack plate structure, wherein the storage rack plate structure comprises a storage rack plate body, a storage rack plate front cross beam and a storage rack plate rear cross beam, wherein the storage rack plate front cross beam and the storage rack plate rear cross beam are connected to the storage rack plate body; the article placing plate body is connected with the side wall of the vehicle, two ends of the rear cross beam of the article placing plate are respectively connected with the D columns at the left side and the right side of the vehicle, the front cross beam of the article placing plate is provided with an inclined supporting plate, and the supporting plate extends to the vehicle floor and is connected with the vehicle floor. The automobile body rear end power transmission effect is relatively poor and consequently leads to the NVH performance of vehicle and the problem that vehicle fatigue durability is low among the prior art is solved to this application.
Description
Technical Field
The embodiment of the application relates to the technical field of vehicles, in particular to a vehicle body rear end force transmission structure and a vehicle.
Background
The excitation of road surface is transmitted to the automobile body rear end on the vehicle and mainly has two power transmission paths, respectively: 1. the road surface excitation is transmitted to a vehicle suspension, then transmitted to a mounting point of a shock absorber on a vehicle body, and finally transmitted to the vehicle body; 2. the road surface excitation is transmitted to the vehicle suspension, then to the rear subframe on the vehicle body, and finally to the vehicle body.
In the prior art, the floor longitudinal beam is used as a carrier of a rear auxiliary frame and a rear suspension, and the strength and the rigidity are insufficient, so that the dynamic rigidity of mounting points of the longitudinal beam and the suspension, the longitudinal beam and the rear auxiliary frame are lower, and the vibration isolation effect is poorer; meanwhile, the object placing plate at the rear end of the vehicle is connected with the vehicle body through the side coaming of the vehicle, so that fault of a force transfer channel is caused, and the force transfer efficiency is influenced, thereby reducing the NVH performance of the vehicle and the fatigue durability of the vehicle.
Disclosure of Invention
The embodiment of the application provides a vehicle body rear end power transmission structure and vehicle, and aims to solve the problem that the NVH performance and the fatigue durability of the vehicle are low due to poor power transmission effect of the vehicle body rear end in the prior art.
A first aspect of embodiments of the present application provides a vehicle body rear end force transmission structure, the force transmission structure including:
the rear floor framework structure comprises a left longitudinal beam and a right longitudinal beam which are arranged in parallel, a first cross beam, a second cross beam and a third cross beam are sequentially connected between the left longitudinal beam and the right longitudinal beam in the direction from the head to the tail, and the vehicle floor is arranged on the first cross beam, the second cross beam and the third cross beam;
the storage rack comprises a storage rack plate structure, a storage rack plate structure and a storage rack plate structure, wherein the storage rack plate structure comprises a storage rack plate body, a storage rack plate front cross beam and a storage rack plate rear cross beam, wherein the storage rack plate front cross beam and the storage rack plate rear cross beam are connected to the storage rack plate body;
the article placing plate body is positioned above the rear floor framework structure, the article placing plate body is connected with the side wall of the vehicle, two ends of the rear cross beam of the article placing plate are respectively connected with D columns on the left side and the right side of the vehicle, an inclined supporting plate is arranged on the front cross beam of the article placing plate, and the supporting plate extends to the vehicle floor and is connected with the vehicle floor.
Optionally, the third beam, the D columns on the left and right sides of the vehicle and the rear beam of the shelf board enclose to form a first plane annular force transmission structure so as to transmit excitation transmitted from the ground.
Optionally, the edges of the second cross beam, the front cross beam of the shelf and the support plate enclose to form a second planar annular force transmission structure so as to transmit excitation transmitted from the ground.
Optionally, the front beam of the shelf, the rear beam of the shelf, the left longitudinal beam, the right longitudinal beam, the D columns on the left side and the right side of the vehicle and the support plate enclose to form a three-dimensional force transmission structure so as to transmit excitation transmitted from the ground.
Optionally, the force transfer structure further comprises:
the two wheel cover inner plates are respectively arranged above the positions, close to the second cross beam, of the left longitudinal beam and the right longitudinal beam, and are used for transmitting excitation transversely transmitted on the left longitudinal beam and the right longitudinal beam.
Optionally, the left longitudinal beam and the right longitudinal beam are formed by splicing a plurality of split structures.
Optionally, the angle between the support plate and the vehicle floor ranges between 65 ° and 70 °.
Optionally, the connection position of the support plate and the vehicle floor is located right above the second cross beam.
Optionally, a plurality of reinforcing members are disposed on the support plate to structurally reinforce the support plate.
A second aspect of embodiments of the present application provides a vehicle comprising a vehicle rear floor rail structure as described.
Adopt the application to provide a car body rear end biography power structure and vehicle has following advantage:
compared with the mode that the shelf board in the prior art is indirectly transmitted through the side wall of the vehicle body, in the embodiment of the application, the rear cross beams of the shelf board in the shelf board structure are directly connected with the D columns on the left side and the right side of the vehicle, so that excitation transmitted from the floor of the vehicle can be directly transmitted to the shelf board structure through the D columns on the left side and the right side of the vehicle, the excitation can be more fully transmitted and dispersed, the vibration sensitivity of the vehicle body is reduced, the method has obvious significance on safety, NVH, fatigue endurance and the like, and the use experience of a user is increased;
on the other hand, the shelf cross beam in the shelf structure is directly connected with the vehicle floor through the supporting plate, excitation transmitted from the vehicle floor can be transmitted to the supporting plate through the vehicle floor and then directly transmitted to the shelf body through the supporting plate, a new force transmission channel is provided for excitation from the vehicle floor, vibration sensitivity of the vehicle body is further reduced, and NVH performance and fatigue durability of the vehicle are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a vehicle body rear end force transmitting structure according to an embodiment of the present application.
Description of the drawings: 1. a left longitudinal beam; 2. a right longitudinal beam; 3. a first cross beam; 4. a second cross beam; 5. a third cross beam; 6. a storage plate body; 7. a front cross beam of the storage plate; 8. a rear cross beam of the storage plate; 9. a support plate; 10. and a wheel cover inner plate.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In view of the above, the application aims to provide a vehicle body rear end force transmission structure and a vehicle, and aims to solve the problems that in the prior art, the vehicle body rear end force transmission effect is poor, so that the NVH performance and the fatigue durability of the vehicle are low.
Referring to fig. 1, a vehicle body rear end force transmitting structure includes:
the rear floor framework structure comprises a left longitudinal beam 1 and a right longitudinal beam 2 which are arranged in parallel, a first cross beam 3, a second cross beam 4 and a third cross beam 5 are sequentially connected between the left longitudinal beam 1 and the right longitudinal beam 2 from the head to the tail, and a vehicle floor is arranged on the first cross beam 3, the second cross beam 4 and the third cross beam 5;
the rack comprises a rack body 6, a rack front beam 7 and a rack rear beam 8, wherein the rack front beam 7 and the rack rear beam 8 are connected to the rack body 6;
the shelf body 6 is located above the rear floor framework structure, the shelf body 6 is connected with the side wall of the vehicle, two ends of the shelf rear cross beam 8 are respectively connected with D columns on the left side and the right side of the vehicle, an inclined supporting plate 9 is arranged on the shelf front cross beam 7, and the supporting plate 9 extends to the vehicle floor and is connected with the vehicle floor.
Through the above-mentioned setting, referring to fig. 1, the mode that the rack board carries out indirect transmission through the automobile body side wall among the prior art has following advantage for this application embodiment: in the embodiment of the application, the rear cross beams 8 of the shelf in the shelf structure are directly connected with the D columns (not shown in the figure) on the left and right sides of the vehicle, so that the excitation transmitted from the floor of the vehicle can be directly transmitted to the shelf structure through the D columns on the left and right sides of the vehicle, the excitation can be more fully transmitted and dispersed, the vibration sensitivity of the vehicle body is reduced, the significance on safety, NVH, fatigue endurance and the like is achieved, and the use experience of a user is increased;
secondly, the deck beam in the deck structure is directly connected with the vehicle floor through the supporting plate 9, the excitation transmitted from the vehicle floor can be transmitted to the supporting plate 9 through the vehicle floor, and then is directly transmitted to the deck body 6 through the supporting plate 9, so that a new force transmission channel is provided for the excitation from the vehicle floor, the vibration sensitivity of the vehicle body is further reduced, and the NVH performance and fatigue durability of the vehicle are improved.
In an embodiment of the present application, referring to fig. 1, the force transmission structure further includes:
the two wheel cover inner plates 10 are respectively arranged above the left longitudinal beam 1 and the right longitudinal beam 2 at positions close to the second cross beam 4, and the wheel cover inner plates 10 are used for transmitting excitation transversely transmitted on the left longitudinal beam 1 and the right longitudinal beam 2.
Referring to fig. 1, two wheel cover inner plates 10 are respectively provided on a left side member 1 and a right side member 2, and the left side member 1, the right side member 2, and the wheel cover inner plates 10 form a force transmission path in an X-axis direction through which an excitation transmitted from a road surface to a vehicle can be transmitted, thereby achieving force dispersion.
The length direction of the second cross beam 4, the front cross beam 7 of the object placing plate and the rear cross beam 8 of the object placing plate are perpendicular to the length direction of the left longitudinal beam 1 and the right longitudinal beam 2, so that a force transmission path in the Y-axis direction is formed, and the excitation transmitted to the vehicle from the road surface can be transmitted through the force transmission path in the Y-axis direction, thereby realizing the force dispersion.
The left and right C columns of the vehicle and the left and right D columns of the vehicle are arranged vertically, the length direction of the C columns is perpendicular to the floor of the vehicle, and meanwhile, the supporting plate 9 is connected with the front cross beam 7 of the shelf upwards in an inclined manner relative to the floor of the vehicle, so that the left and right C columns of the vehicle, the left and right D columns of the vehicle and the supporting plate 9 form a force transmission path in the Z axis direction, and excitation transmitted to the vehicle from the road surface can be transmitted through the force transmission path in the Z axis direction, thereby realizing force dispersion.
In this embodiment, the axial force transmission path is removed, and the third beam 5, the D columns on the left and right sides of the vehicle, and the rear beam 8 of the shelf board enclose to form a first planar annular force transmission structure, so as to transmit the excitation transmitted from the ground.
In the above arrangement, referring to fig. 1, the third cross member 5 is located at the tail portion of the vehicle, the third cross member 5 spans the left side member 1 and the right side member 2, and both ends thereof are connected to the left side member 1 and the right side member 2, respectively, and the length direction of the third cross member 5 is perpendicular to the length direction of the left side member 1 and the right side member 2.
Because the vehicle floor is arranged on the rear floor skeleton structure formed by connecting the first cross beam 3, the second cross beam 4, the third cross beam 5, the left longitudinal beam 1 and the right longitudinal beam 2, the excitation transmitted to the vehicle floor can be directly transmitted through the components of the rear floor skeleton structure.
The bottom ends of the left and right side D columns of the vehicle are respectively connected with the left longitudinal beam 1 and the right longitudinal beam 2, so that the excitation transmitted to the floor of the vehicle is also upwardly transmitted through the left and right side D columns of the vehicle, and because the rear cross beam 8 of the shelf is connected with the left and right side D columns of the vehicle, the excitation is transmitted to the rear cross beam 8 of the shelf along with the left and right side D columns of the vehicle, and finally transmitted to the whole shelf structure.
Through the arrangement, referring to fig. 1, the third cross beam 5, the D columns on the left and right sides of the vehicle and the rear cross beam 8 of the shelf board enclose to form a first plane annular force transmission structure, and the first plane force transmission structure provides a new force transmission path.
In this embodiment, referring to fig. 1, the edges of the second beam 4, the front beam 7 of the shelf and the supporting plate 9 enclose a second planar annular force transmission structure, so as to transmit the excitation transmitted from the ground.
In the above arrangement, referring to fig. 1, the second beam 4 is located between the first beam 3 and the third beam 5, and the second beam 4 is located where the support plate 9 is connected to the floor of the vehicle, and the excitation transmitted from the road surface to the vehicle is transmitted upwards from the second beam 4 to the vehicle floor, then to the support plate 9, then to the front shelf beam 7 from the support plate 9, and finally to the whole shelf structure from the front shelf beam 7.
The force transmission path is a second planar annular force transmission structure formed by encircling the edges of the second cross beam 4, the front cross beam 7 of the object placing plate and the supporting plate 9, the second planar force transmission structure also provides a new force transmission path, and the second planar force transmission structure can further disperse excitation transmitted to the vehicle by the road surface, so that the NVH performance and the fatigue durability of the vehicle are further improved.
The first plane force transmission structure and the second plane force transmission structure are respectively positioned on one side of the front beam 7 of the object placing plate and one side of the rear beam 8 of the object placing plate, and a new force transmission structure is formed under the combination of the first plane force transmission structure, the second plane force transmission structure and the object placing plate structure, as follows:
in this embodiment, referring to fig. 1, the front beam 7 of the shelf, the rear beam 8 of the shelf, the left longitudinal beam 1, the right longitudinal beam 2, the D columns on the left and right sides of the vehicle, and the support plate 9 enclose to form a three-dimensional force transmission structure, so as to transmit the excitation transmitted from the ground.
Compared with the first plane force transmission structure and the second plane force transmission structure, the three-dimensional force transmission structure formed by combining the first plane force transmission structure and the second plane force transmission structure has more force transmission paths, and the newly-added stress transmission paths can greatly transmit and disperse excitation from a road surface, so that the vibration sensitivity of a vehicle body is sufficiently reduced, and the performances such as safety, NVH, fatigue durability and the like are remarkably improved.
In the embodiment of the application, the left longitudinal beam 1 and the right longitudinal beam 2 are formed by splicing a plurality of split structures.
Through the arrangement, the split type design strengthens the connection between the left longitudinal beam 1 and the right longitudinal beam 2 and the side wall of the vehicle, and avoids the reduction of rigidity and welding deformation caused by overlong single plate. Meanwhile, the overall structural strength of the left longitudinal beam 1 and the right longitudinal beam 2 is enhanced, and the situation that the vibration isolation effect is poor due to the fact that the strength and the rigidity of the left longitudinal beam are insufficient, so that the longitudinal beam and a suspension are caused, the dynamic rigidity of the mounting points of the longitudinal beam and a rear auxiliary frame is low is avoided.
In the present embodiment, the angle between the support plate 9 and the vehicle floor is in the range of 65 ° to 70 °.
In the embodiment of the application, the included angle between the supporting plate 9 and the floor is 66 degrees, and the obliquely arranged supporting plate 9 can limit the rear-row seat of the vehicle, and meanwhile, under the condition of meeting the optimal man-machine arrangement, the torsional rigidity of the whole vehicle is greatly improved (the torsional rigidity of approximately 8000 N.m is contributed to the whole vehicle). The deformation of the door frame of five doors is effectively reduced, the risk of abnormal noise caused by friction of the sealing strips is reduced, and the abnormal noise caused by NVH and BSR is obviously improved. Among them, NVH is an abbreviation of Noise, vibration, harshness (Harshness, colloquially called discomfort or Harshness). NVH of vehicle: all the touch and hearing sensations in the car when driving the car belong to the NVH research scope and also comprise a series of problems of strength, service life and the like caused by vibration of some car parts.
BSR, automotive low noise system, is abbreviated as (Buzz, squeak and Rattle).
In the embodiment of the application, the connection position of the support plate 9 with the vehicle floor is located directly above the second cross member 4. The support plate 9 is located directly above the second cross member 4 to better support the support plate 9.
In the embodiment of the application, a plurality of reinforcing members are provided on the supporting plate 9 to structurally reinforce the supporting plate 9.
Based on the same inventive concept, the application also provides a vehicle comprising the vehicle rear floor rail structure as described.
In general, embodiments of the present application have the following advantages:
compared with the mode that the shelf board in the prior art is indirectly transmitted through the side wall of the vehicle body, in the embodiment of the application, the rear cross beams 8 of the shelf board in the shelf board structure are directly connected with the D columns on the left side and the right side of the vehicle, so that excitation transmitted from the floor of the vehicle can be directly transmitted to the shelf board structure through the D columns on the left side and the right side of the vehicle, the excitation can be more fully transmitted and dispersed, the vibration sensitivity of the vehicle body is reduced, the method has obvious significance on safety, NVH, fatigue endurance and the like, and the use experience of a user is improved;
on the other hand, the deck beam in the deck structure is directly connected with the vehicle floor through the supporting plate 9, the excitation transmitted from the vehicle floor can be transmitted to the supporting plate 9 through the vehicle floor, and then is directly transmitted to the deck body 6 through the supporting plate 9, so that a new force transmission channel is provided for the excitation from the vehicle floor, the vibration sensitivity of the vehicle body is further reduced, and the NVH performance and fatigue durability of the vehicle are improved.
It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, or order, and without necessarily being construed as indicating or implying any relative importance. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.
The foregoing has outlined rather broadly the more detailed description of the present application, and the detailed description of the principles and embodiments herein may be better understood as being a limitation on the present application. Also, various modifications in the details and application scope may be made by those skilled in the art in light of this disclosure, and all such modifications and variations are not required to be exhaustive or are intended to be within the scope of the disclosure.
Claims (10)
1. A rear end force transmitting structure of a vehicle body, characterized by comprising:
the rear floor framework structure comprises a left longitudinal beam (1) and a right longitudinal beam (2), a first cross beam (3), a second cross beam (4) and a third cross beam (5) are sequentially connected between the left longitudinal beam (1) and the right longitudinal beam (2) from the head to the tail, and the vehicle floor is arranged on the first cross beam (3), the second cross beam (4) and the third cross beam (5);
the rack comprises a rack body (6), a rack front beam (7) and a rack rear beam (8) which are connected to the rack body (6);
the novel rear floor comprises a rear floor framework structure, a rear floor framework structure and a rear floor framework structure, wherein the rear floor framework structure is characterized in that the rear floor framework structure is arranged above the rear floor framework structure, the rear floor framework structure (6) is connected with a side wall of a vehicle, two ends of a rear transverse beam (8) of the rear floor are respectively connected with a left column and a right column of the vehicle, an inclined supporting plate (9) is arranged on a front transverse beam (7) of the rear floor framework structure, and the supporting plate (9) extends to the floor of the vehicle and is connected with the floor of the vehicle.
2. The vehicle body rear end force transmission structure according to claim 1, wherein the third cross member (5), the D-pillar on the left and right sides of the vehicle, and the shelf rear cross member (8) enclose a first planar annular force transmission structure to transmit excitation transmitted from the ground.
3. The vehicle body rear end force transmission structure according to claim 1, characterized in that edges of the second cross member (4), the shelf front cross member (7) and the support plate (9) enclose a second planar annular force transmission structure for transmitting excitation transmitted from the ground.
4. The vehicle body rear end force transmission structure according to claim 1, wherein the deck front cross member (7), the deck rear cross member (8), the left side member (1), the right side member (2), the D pillar on the left and right sides of the vehicle, and the support plate (9) enclose to form a three-dimensional force transmission structure for transmitting excitation transmitted from the ground.
5. The body rear end force transmitting structure according to claim 1, characterized in that the force transmitting structure further comprises:
the two wheel cover inner plates (10), the two wheel cover inner plates (10) are respectively arranged above the positions of the left longitudinal beam (1) and the right longitudinal beam (2) close to the second cross beam (4), and the wheel cover inner plates (10) are used for transmitting excitation transversely transmitted on the left longitudinal beam (1) and the right longitudinal beam (2).
6. The vehicle body rear end force transmission structure according to claim 1, characterized in that the left side member (1) and the right side member (2) are each formed by splicing a plurality of split structures.
7. The vehicle body rear end force transmission structure according to claim 1, characterized in that the angle between the support plate (9) and the vehicle floor is in the range of 65 ° to 70 °.
8. The vehicle body rear end force transmitting structure according to claim 1, characterized in that the connection position of the support plate (9) with the vehicle floor is located directly above the second cross member (4).
9. The vehicle body rear end force transmitting structure according to claim 1, characterized in that the support plate (9) is provided with a plurality of reinforcing members for structurally reinforcing the support plate (9).
10. A vehicle, characterized in that the vehicle comprises a vehicle body rear end force transmitting structure as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222873132.8U CN218929600U (en) | 2022-10-28 | 2022-10-28 | Car body rear end power transmission structure and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222873132.8U CN218929600U (en) | 2022-10-28 | 2022-10-28 | Car body rear end power transmission structure and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218929600U true CN218929600U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222873132.8U Active CN218929600U (en) | 2022-10-28 | 2022-10-28 | Car body rear end power transmission structure and car |
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| Country | Link |
|---|---|
| CN (1) | CN218929600U (en) |
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2022
- 2022-10-28 CN CN202222873132.8U patent/CN218929600U/en active Active
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