CN217575354U - Lower vehicle body structure and vehicle - Google Patents
Lower vehicle body structure and vehicle Download PDFInfo
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- CN217575354U CN217575354U CN202221993446.5U CN202221993446U CN217575354U CN 217575354 U CN217575354 U CN 217575354U CN 202221993446 U CN202221993446 U CN 202221993446U CN 217575354 U CN217575354 U CN 217575354U
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- 230000035939 shock Effects 0.000 claims description 45
- 238000010521 absorption reaction Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a lower vehicle body structure and a vehicle, wherein the lower vehicle body structure comprises a vehicle body frame, a battery system tray structure and a vehicle body connecting structure; the vehicle body frame comprises a front mounting frame, a battery pack mounting frame and a rear mounting frame which are sequentially connected in a first direction, and the battery pack mounting frame comprises a mounting part; the battery system tray structure is arranged on the mounting part and used for mounting the battery pack assembly; the vehicle body connecting structure is arranged on the vehicle body frame and is used for detachably connecting the vehicle body frame with the upper vehicle body; the front mounting frame is connected with the battery pack mounting frame through a threaded connection structure and/or the battery pack mounting frame is connected with the rear mounting frame through a threaded connection structure; therefore, the battery pack assembly can be freely disassembled and assembled; and the lower vehicle body structure becomes a half-bearing type vehicle body structure, so that the driving performance and the comfort of the whole vehicle can be improved.
Description
Technical Field
The utility model belongs to the technical field of the body construction technique and specifically relates to a lower vehicle body structure and vehicle.
Background
The lower integrated vehicle body is a newly-developed vehicle body structure in recent years, the lower integrated vehicle body in the prior art adopts a non-load-bearing steel frame as a main body, a battery module and a controller are assembled to the central part of the lower vehicle body from top to bottom and are sealed by an upper cover, and an upper vehicle body is flexibly connected to the lower vehicle body through a bolt to form a complete vehicle body. Because the adopted structure is a non-bearing structure, the body structure of the lower vehicle body not only can increase the weight of the whole vehicle, but also can influence the driving performance and the comfort of the vehicle; meanwhile, the battery module and the controller are assembled to the lower automobile body from top to bottom, so that the maintainability of the battery pack is extremely poor under the condition that the upper automobile body is completely assembled.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lower vehicle body structure and vehicle, aim at solving the problem of the driving performance of vehicle, travelling comfort and the maintainability of battery package can fall to lower vehicle body structure under the current integral type.
In order to achieve the above object, the utility model provides a lower vehicle body structure, include:
the vehicle body frame comprises a front mounting frame, a battery pack mounting frame and a rear mounting frame which are sequentially connected in the first direction, wherein the length direction of the vehicle body frame is a first direction, the width direction of the vehicle body frame is a second direction, and the battery pack mounting frame comprises a mounting part;
the battery system tray structure is arranged on the mounting part and used for mounting a battery pack assembly; and (c) a second step of,
the vehicle body connecting structure is arranged on the vehicle body frame and is used for detachably connecting the vehicle body frame with an upper vehicle body;
wherein the front mounting frame is connected with the battery pack mounting frame through a screw connection structure and/or the battery pack mounting frame is connected with the rear mounting frame through a screw connection structure.
Optionally, the front mounting frame comprises:
the two front longitudinal beams are arranged side by side at intervals in the second direction, and each front longitudinal beam extends along the first direction;
the front wall cross beam is arranged on one side, facing the battery pack mounting frame, of the two front longitudinal beams, extends along the second direction, and two end parts of the front wall cross beam are connected with the two front longitudinal beams respectively; and the number of the first and second groups,
the front anti-collision beam and the front coaming cross beam are oppositely arranged in the first direction, the front anti-collision beam extends along the second direction, and two end parts of the front anti-collision beam are respectively connected with the two front longitudinal beams;
wherein, the battery pack mounting frame is detachably connected with the front wall cross beam.
Optionally, the front mounting frame further comprises:
the two front shock absorption towers are respectively arranged corresponding to the two front longitudinal beams, and each front shock absorption tower is arranged on the front longitudinal beam on the corresponding side and close to the position of the front wall plate cross beam; and the number of the first and second groups,
the two front torsion boxes are respectively arranged at two ends of the front wall plate cross beam in the second direction, and the side part of each front torsion box is connected with the front longitudinal beam on the corresponding side and the battery pack mounting frame.
Optionally, the battery pack mounting frame comprises:
the two side beams are arranged side by side at intervals in the second direction;
the front edge beam is arranged on one side, facing the front mounting frame, of the two side edge beams, extends along the second direction, and two end parts of the front edge beam are connected with the two side edge beams respectively;
the rear edge beam and the front edge beam are oppositely arranged in the first direction, the rear edge beam extends along the second direction, and two end parts of the rear edge beam are respectively connected with the two side edge beams; and the number of the first and second groups,
the battery pack upper cover is horizontally arranged, the peripheral sides of the battery pack upper cover are respectively connected with the two side edge beams, the front edge beam and the rear edge beam, and the battery pack upper cover is used for enclosing together to form a mounting groove with a downward opening so as to mount the battery system tray structure;
wherein the mounting portion includes the mounting groove;
the front mounting frame is detachably connected with the front edge beam;
the rear mounting frame is detachably connected with the rear edge beam.
Optionally, the battery system tray structure includes:
the tray comprises a tray frame and a battery pack lower cover plate, the tray frame is arranged in the mounting groove, the battery pack lower cover plate is arranged on one side, back to the bottom wall of the mounting groove, of the tray frame and used for being enclosed with the tray frame to form a cavity with one open side, and the opening of the cavity faces one side of the bottom wall of the mounting groove; and the number of the first and second groups,
and the plurality of internal beam bodies are arranged in the tray frame and are arranged in a criss-cross mode, so that the cavity is divided into a plurality of mounting cavities to be respectively placed by corresponding battery pack elements.
Optionally, the rear mounting frame comprises:
the two rear longitudinal beams are arranged side by side at intervals in the second direction, and each rear longitudinal beam extends along the first direction;
the rear cross beam is arranged on one side, facing the battery pack mounting frame, of the two rear longitudinal beams, extends along the second direction, and two end parts of the rear cross beam are connected with the two rear longitudinal beams respectively; and (c) a second step of,
the rear anti-collision beam and the rear cross beam are oppositely arranged in the first direction, the rear anti-collision beam extends along the second direction, and two end parts of the rear anti-collision beam are respectively connected with the two rear longitudinal beams;
wherein, the battery pack mounting frame is detachably connected with the rear cross beam.
Optionally, the rear mounting frame further comprises:
the two rear shock absorption towers are respectively arranged corresponding to the two rear longitudinal beams, and each rear shock absorption tower is arranged on the rear longitudinal beam on the corresponding side and close to the rear cross beam; and the number of the first and second groups,
and the two rear torsion boxes are respectively arranged at two ends of the rear cross beam in the second direction, and the side part of each rear torsion box is connected with the rear longitudinal beam on the corresponding side and the battery pack mounting frame.
Optionally, the front mounting frame and/or the battery pack mounting frame and/or the rear mounting frame is made of an aluminum alloy profile.
Optionally, the front mounting frame comprises two front longitudinal beams, a front bulkhead cross-member, a front impact beam, two front shock towers, and two front torsion boxes;
the battery pack mounting frame comprises two side edge beams, a front edge beam and a rear edge beam;
the rear mounting frame comprises two rear longitudinal beams, a rear cross beam, a rear anti-collision beam, two rear shock absorption towers and two rear torsion boxes;
the automobile body connection structure includes front longitudinal beam connecting portion, preceding shock attenuation tower connecting portion, preceding torsion connecting portion, boundary beam connecting portion, back torsion connecting portion, back shock attenuation tower connecting portion and back longeron connecting portion, front longitudinal beam connecting portion are located the front longitudinal beam, preceding shock attenuation tower connecting portion are located preceding shock attenuation tower, preceding torsion connecting portion are located preceding box of twisting, boundary beam connecting portion are located the side boundary beam, back torsion connecting portion are located the back box of twisting, back shock attenuation tower connecting portion are located back shock attenuation tower, back longeron connecting portion are located back longeron.
The utility model also provides a vehicle, the vehicle includes the lower vehicle body structure, the lower vehicle body structure includes:
the vehicle body frame comprises a front mounting frame, a battery pack mounting frame and a rear mounting frame which are sequentially connected in the first direction, wherein the length direction of the vehicle body frame is a first direction, the width direction of the vehicle body frame is a second direction, and the battery pack mounting frame comprises a mounting part;
the battery system tray structure is arranged on the mounting part; and the number of the first and second groups,
the vehicle body connecting structure is arranged on the vehicle body frame and is used for detachably connecting the vehicle body frame with the upper vehicle body;
wherein the front mounting frame is connected with the battery pack mounting frame through a screw connection structure and/or the battery pack mounting frame is connected with the rear mounting frame through a screw connection structure.
In the technical scheme of the utility model, the lower vehicle body structure comprises a front mounting frame, a battery pack mounting frame and a rear mounting frame which are connected in sequence, wherein the front mounting frame, the battery pack mounting frame and the rear mounting frame are connected through a threaded connection structure, so that the lower vehicle body structure forms an integrated lower vehicle body structure; the battery pack mounting frame is provided with the mounting part, the lower vehicle body structure further comprises a battery system tray structure, the battery system tray structure is arranged on the mounting part and used for placing a battery pack assembly, and when the battery pack assembly is maintained, the battery system tray structure can be detached to realize free disassembly and assembly of the battery pack assembly under the condition that the upper vehicle body is completely assembled, so that convenience is brought to maintenance and replacement of the battery pack assembly; meanwhile, the vehicle body frame is arranged on the vehicle body connecting structure and is detachably connected with the upper vehicle body, so that the lower vehicle body structure becomes a half-bearing vehicle body structure, and the driving performance and the comfort of the whole vehicle can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a lower vehicle body structure provided by the present invention;
FIG. 2 is a schematic view of the mounting of the battery system tray structure of FIG. 1;
fig. 3 is a schematic view of the assembly of the lower body structure and the upper body of fig. 1.
The utility model provides an embodiment reference numeral explains:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Lower vehicle body structure | 134 | Rear shock absorption tower |
| 1 | Vehicle body frame | 135 | |
| 11 | Front mounting frame | 2 | Tray structure of |
| 111 | Front longitudinal beam | 21 | Tray |
| 112 | Front wall boardCross beam | 211 | |
| 113 | Front anti-collision beam | 212 | Battery pack |
| 114 | Front |
22 | Internal beam body |
| 115 | |
3 | Vehicle body connecting structure |
| 12 | Battery pack mounting frame | 31 | Front longitudinal beam connecting part |
| 121 | Side beam | 32 | Front shock absorption tower connecting part |
| 122 | Front edge beam | 33 | Front torsion joint |
| 123 | Rear edge beam | 34 | Boundary beam connecting part |
| 124 | Battery pack upper cover | 35 | Rear torsion joint |
| 13 | Rear mounting frame | 36 | Rear shock absorption tower connecting part |
| 131 | Rear longitudinal beam | 37 | Rear longitudinal beam connecting part |
| 132 | Rear cross member | F1 | A first direction |
| 133 | Rear anti-collision beam | F2 | Second direction |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The integrated lower automobile body is a new automobile body structure in recent years, the existing integrated lower automobile body adopts a non-bearing type steel frame as a main body, a battery module and a controller are assembled to the central part of the lower automobile body from top to bottom and are sealed by an upper cover, and the upper automobile body is flexibly connected to the lower automobile body through a bolt to form a complete automobile body. Because the adopted structure is a non-bearing structure, the body structure of the lower vehicle body not only can increase the weight of the whole vehicle, but also can influence the driving performance and the comfort of the vehicle; meanwhile, the battery module and the controller are assembled to the lower automobile body from top to bottom, so that the battery pack has extremely poor maintainability under the condition that the upper automobile body is completely assembled.
In view of this, the utility model provides a lower vehicle body structure and vehicle. Fig. 1 to fig. 3 are specific embodiments of the lower vehicle body structure provided by the present invention.
Referring to fig. 1 to 2, the lower vehicle body structure 100 includes a vehicle body frame 1, a battery system tray structure 2, and a vehicle body connecting structure 3; the direction of the length of the vehicle body frame 1 is a first direction F1, the direction of the width of the vehicle body frame 1 is a second direction F2, the vehicle body frame 1 comprises a front mounting frame 11, a battery pack mounting frame 12 and a rear mounting frame 13 which are sequentially connected in the first direction F1, and the battery pack mounting frame 12 comprises a mounting part; the battery system tray structure 2 is arranged on the mounting part, and the battery system tray structure 2 is used for mounting a battery pack assembly; the vehicle body connecting structure 3 is arranged on the vehicle body frame 1 and is used for detachably connecting the vehicle body frame 1 with an upper vehicle body; wherein the front mounting frame 11 is connected to the battery pack mounting frame 12 by a screw connection structure and/or the battery pack mounting frame 12 is connected to the rear mounting frame 13 by a screw connection structure.
In the technical solution of the present invention, the lower vehicle body structure 100 includes a front mounting frame 11, a battery pack mounting frame 12 and a rear mounting frame 13, which are connected in sequence, wherein the front mounting frame 11, the battery pack mounting frame 12 and the rear mounting frame 13 are connected by a threaded connection structure, so that the lower vehicle body structure 100 forms an integrated lower vehicle body structure 100; the installation part is arranged on the battery pack installation frame 12, the lower vehicle body structure 100 further comprises a battery system tray structure 2, the battery system tray structure 2 is arranged on the installation part, the battery system tray structure 2 is used for arranging a battery pack assembly, when the battery pack assembly is maintained, the battery pack assembly can be freely disassembled and assembled by disassembling the battery system tray structure 2 under the condition that an upper vehicle body is completely assembled, and convenience is brought to maintenance and replacement of the battery pack assembly; meanwhile, the vehicle body frame 1 is provided with the vehicle body connecting structure 3, which is used for connecting the vehicle body frame 1 with the upper vehicle body in a detachable manner, so that the lower vehicle body structure 100 becomes a half-bearing vehicle body structure, and the driving performance and the comfort of the whole vehicle can be improved.
Specifically, the front mounting frame 11 includes two front side members 111, a cowl cross member 112, and a front impact beam 113; the two front longitudinal beams 111 are arranged side by side at intervals in the second direction F2, and each front longitudinal beam 111 extends along the first direction F1; the front wall cross member 112 is disposed on one side of the two front longitudinal members 111 facing the battery pack mounting frame 12, the front wall cross member 112 extends along the second direction F2, and two ends of the front wall cross member are respectively connected to the two front longitudinal members 111; the front impact beam 113 and the cowl cross beam 112 are disposed opposite to each other in the first direction F1, the front impact beam 113 extends in the second direction F2, and two end portions of the front impact beam are respectively connected to the two front longitudinal beams 111; wherein the battery pack mounting frame 12 is detachably connected to the dash cross-member 112; that is, the front mounting frame 11 is formed by the two front side members 111, the cowl cross member 112, and the front impact beam 113, and thus, the structure is simple and the assembly is convenient.
It should be noted that the two front side members 111, the dash cross member 112, and the front impact beam 113 are fastened and connected by a screw connection structure, so that the front mounting frame 11 can be detached, and the structure is simple and the assembly is convenient.
More specifically, the front mounting frame 11 further includes two front shock towers 114 and two front torsion boxes 115; the two front shock absorption towers 114 are respectively arranged corresponding to the two front longitudinal beams 111, and each front shock absorption tower 114 is arranged on the front longitudinal beam 111 on the corresponding side and close to the position of the front wall cross beam 112; two front torsion boxes 115 are respectively arranged at two ends of the dash cross-member 112 in the second direction F2, and a side portion of each front torsion box 115 connects the front side member 111 and the battery pack mounting frame 12 on the corresponding side; the front shock absorbing tower 114 is provided to improve the impact energy absorbing effect of the front mounting frame 11, thereby improving the stability of the lower vehicle body structure 100; through setting up preceding torsion box 115 can not only improve the intensity of front portion installation frame 11 can improve moreover front portion installation frame 11 is just bumping the transmission effect of impact force when the side bumps, thereby improves the security performance of lower vehicle body structure 100.
It should be noted that the two front shock absorbing towers 114 are connected to the front side frame 111 by a hot-melt fastening screw and a structural adhesive, and the two front torsion boxes 115 are mounted to the front mounting frame 11 by a screw connection structure, a hot-melt fastening screw and a structural adhesive.
The front mounting frame 11 further includes a front twist seal plate extending along the second direction F2, the front twist seal plate is disposed on a side of the front bulkhead cross member 112 facing away from the battery pack mounting frame 12, and the front twist seal plate is erected above the two front longitudinal members 111; with this arrangement, the effect of transmitting the impact force of the front mounting frame 11 during the frontal collision can be further improved, thereby improving the safety of the lower vehicle body structure 100.
In this embodiment, referring to fig. 2, the battery pack mounting frame 12 includes two side beams 121, a front beam 122, a rear beam 123, and a battery pack cover 124; the two side beams 121 are arranged side by side at intervals in the second direction F2; the front side frame 122 is disposed on one side of the two side frames 121 facing the front mounting frame 11, the front side frame 122 extends along the second direction F2, and two ends of the front side frame 122 are respectively connected to the two side frames 121; the rear edge beam 123 and the front edge beam 122 are oppositely arranged in the first direction F1, the rear edge beam 123 extends along the second direction F2, and two end portions of the rear edge beam 123 are respectively connected with the two side edge beams 121; the battery pack upper cover 124 is horizontally arranged, and the peripheral sides of the battery pack upper cover are respectively connected with the two side edge beams 121, the front edge beam 122 and the rear edge beam 123 so as to jointly enclose and form an installation groove with a downward opening for installing the battery system tray structure 2; wherein the mounting portion includes the mounting groove; the front mounting frame 11 is detachably connected to the front side frame 122; the rear mounting frame 13 is detachably connected to the rear edge beam 123; by the arrangement, the structure is simple, and the assembly is convenient; and battery system tray structure 2 is used for settling the battery package subassembly, when maintaining the battery package subassembly, under the complete condition of last automobile body assembly, can realize freely dismouting in Z ascending to the battery package subassembly through dismantling battery system tray structure 2, brings the facility for the maintenance and the change of battery package subassembly.
It should be noted that the two side beams 121, the front side beam 122 and the rear side beam 123 are fastened and connected through a threaded connection structure, so that the front mounting frame 11 is detachable, and has a simple structure and convenient assembly; the battery pack upper cover 124 is mounted on the two side beams 121, the front edge beam 122 and the rear edge beam 123 by riveting and glue connection; with such an arrangement, the mounting strength and the sealing performance of the battery pack upper cover 124 are improved.
Specifically, the battery system tray structure 2 includes a tray 21 and a plurality of inner beams 22; the tray 21 comprises a tray frame 211 and a battery pack lower cover plate 212, the tray frame 211 is arranged in the mounting groove, the battery pack lower cover plate 212 is arranged on one side, back to the bottom wall of the mounting groove, of the tray frame 211 and used for being enclosed together with the tray frame 211 to form a cavity with one open side, and the opening of the cavity faces one side of the bottom wall of the mounting groove; the internal beams 22 are arranged in the tray frame 211, and the internal beams 22 are arranged in a criss-cross manner to divide the cavity into a plurality of mounting cavities for placing corresponding battery pack elements; with the arrangement, the battery system tray structure 2 can bear all the battery systems, so that the installation space can be saved to the maximum extent; simultaneously, battery system tray structure 2 can effectively guarantee the integrality of lower vehicle body structure at the electrophoresis in-process to greatly improve battery system's maintenance convenience.
It should be noted that the tray structure 2 of the battery system is detachably mounted in the mounting groove through a threaded connection structure, and has a simple structure and is convenient and fast to assemble.
In this embodiment, with further reference to fig. 1, the rear mounting frame 13 includes two rear longitudinal beams 131, a rear cross beam 132, and a rear impact beam 133; the two rear longitudinal beams 131 are arranged side by side at intervals in the second direction F2, and each rear longitudinal beam 131 extends along the first direction F1; the rear cross member 132 is disposed on one side of the two rear longitudinal members 131 facing the battery pack mounting frame 12, the rear cross member 132 extends along the second direction F2, and two ends of the rear cross member 132 are respectively connected to the two rear longitudinal members 131; the rear anti-collision beam 133 and the rear cross beam 132 are oppositely arranged in the first direction F1, the rear anti-collision beam 133 extends along the second direction F2, and two end portions of the rear anti-collision beam are respectively connected with the two rear longitudinal beams 131; wherein the battery pack mounting frame 12 is detachably connected to the rear cross member 132; that is, the rear mounting frame 13 is formed by the two rear longitudinal beams 131, the rear cross beam 132, and the rear impact beam 133, and thus, the structure is simple and the assembly is convenient.
It should be noted that the two rear longitudinal beams 131, the rear cross beam 132 and the rear impact beam 133 are fastened and connected through a threaded connection structure, so that the rear mounting frame 13 can be detached, and the structure is simple and convenient to assemble.
More specifically, the rear mounting frame 13 further includes two rear shock towers 134 and two rear torsion boxes 135; the two rear shock absorption towers 134 are respectively arranged corresponding to the two rear longitudinal beams 131, and each rear shock absorption tower 134 is arranged on the rear longitudinal beam 131 on the corresponding side and close to the rear cross beam 132; the two rear torsion boxes 135 are respectively disposed at two ends of the rear cross member 132 in the second direction F2, and a side portion of each rear torsion box 135 connects the rear longitudinal member 131 and the pack mounting frame 12 on the corresponding side; the rear shock absorber 134 is arranged to improve the collision energy absorption effect of the rear mounting frame 13, so as to improve the stability of the lower vehicle body structure 100; through setting up back torsion box 135 can not only improve the intensity of rear portion installation frame 13 can improve moreover rear portion installation frame 13 is just bumping the transmission effect of impact force when the side bumps, thereby improves the security performance of lower vehicle body structure 100.
It should be noted that the two rear shock absorbing towers 134 are connected to the rear side member 131 by a hot-melt fastening screw and a structural adhesive, and the two rear torsion boxes 135 are mounted to the rear mounting frame 13 by a screw connection structure, a hot-melt fastening screw and a structural adhesive.
The rear mounting frame 13 further comprises a rear twist seal plate extending along the second direction F2, the rear twist seal plate being disposed on a side of the rear cross member 132 facing away from the battery pack mounting frame 12, the rear twist seal plate being erected above the two rear longitudinal members 131; with this arrangement, the effect of transmitting the impact force of the rear mounting frame 13 during the frontal collision can be further improved, thereby improving the safety of the lower vehicle body structure 100.
In the present invention, the front mounting frame 11 and/or the battery pack mounting frame 12 and/or the rear mounting frame 13 is made of an aluminum alloy profile; specifically, in the present embodiment, the materials of the front mounting frame 11, the battery pack mounting frame 12, and the rear mounting frame 13 include aluminum alloy sections, that is, all aluminum alloy sections are adopted, and the weight is reduced by 30% compared with the frame of an all-steel structure; thereby further reducing the overall weight of the lower body structure 100.
In the present invention, the front mounting frame 11 includes two front longitudinal beams 111, a front cowl cross beam 112, a front impact beam 113, two front shock-absorbing towers 114, and two front torsion boxes 115; the battery pack mounting frame 12 includes two side rails 121, a front rail 122, and a rear rail 123; the rear mounting frame 13 includes two rear longitudinal beams 131, a rear cross beam 132, a rear impact beam 133, two rear shock towers 134, and two rear torsion boxes 135; the vehicle body connecting structure 3 comprises a front longitudinal beam connecting part 31, a front shock absorption tower connecting part 32, a front torsion connecting part 33, a side beam connecting part 34, a rear torsion connecting part 35, a rear shock absorption tower connecting part 36 and a rear longitudinal beam connecting part 37, wherein the front longitudinal beam connecting part 31 is arranged on the front longitudinal beam 111, the front shock absorption tower connecting part 32 is arranged on the front shock absorption tower 114, the front torsion connecting part 33 is arranged on the front torsion box 115, the side beam connecting part 34 is arranged on the side edge beam 121, the rear torsion connecting part 35 is arranged on the rear torsion box 135, the rear shock absorption tower connecting part 36 is arranged on the rear shock absorption tower 134, and the rear longitudinal beam connecting part 37 is arranged on the rear longitudinal beam 131; that is to say, go up the automobile body with lower body structure 100's installation is through body frame 1 arranges connecting portion along passing power route to realize go up the automobile body with lower body structure 100's hard joint, and then make lower body structure 100 becomes half-loaded formula's automobile body structure, thereby can improve whole car drivability and travelling comfort.
The front side member coupling portion 31, the front damper tower coupling portion 32, the front torsion coupling portion 33, the side member coupling portion 34, the rear torsion coupling portion 35, the rear damper tower coupling portion 36, and the rear side member coupling portion 37 are all provided as bolt attachment points.
The utility model provides a vehicle, the vehicle includes lower body structure 100, what need explain, lower body structure 100 sets up to foretell lower body structure 100, that is to say, the vehicle includes the whole technical characteristics of foretell lower body structure 100's all embodiments, just also has all technical effects that whole technical characteristics brought, and here is no longer repeated.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A lower vehicle body structure characterized by comprising:
the vehicle body frame comprises a front mounting frame, a battery pack mounting frame and a rear mounting frame which are sequentially connected in the first direction, wherein the length direction of the vehicle body frame is a first direction, the width direction of the vehicle body frame is a second direction, and the battery pack mounting frame comprises a mounting part;
the battery system tray structure is arranged on the mounting part and used for mounting a battery pack assembly; and the number of the first and second groups,
the vehicle body connecting structure is arranged on the vehicle body frame and is used for detachably connecting the vehicle body frame with the upper vehicle body;
wherein the front mounting frame is connected with the battery pack mounting frame through a screw connection structure and/or the battery pack mounting frame is connected with the rear mounting frame through a screw connection structure.
2. The lower body structure of claim 1, wherein the front mounting frame comprises:
the two front longitudinal beams are arranged side by side at intervals in the second direction, and each front longitudinal beam extends along the first direction;
the front wall cross beam is arranged on one side, facing the battery pack mounting frame, of the two front longitudinal beams, extends along the second direction, and two end parts of the front wall cross beam are connected with the two front longitudinal beams respectively; and (c) a second step of,
the front anti-collision beam and the front coaming cross beam are oppositely arranged in the first direction, the front anti-collision beam extends along the second direction, and two end parts of the front anti-collision beam are respectively connected with the two front longitudinal beams;
wherein, the battery pack mounting frame is detachably connected with the front wall cross beam.
3. The lower body structure of claim 2, wherein the front mounting frame further comprises:
the two front shock absorption towers are respectively arranged corresponding to the two front longitudinal beams, and each front shock absorption tower is arranged on the front longitudinal beam on the corresponding side and close to the position of the front wall plate cross beam; and the number of the first and second groups,
the two front torsion boxes are respectively arranged at two ends of the front wall plate cross beam in the second direction, and the side part of each front torsion box is connected with the front longitudinal beam on the corresponding side and the battery pack mounting frame.
4. The lower body structure according to claim 1, wherein the battery pack mounting frame includes:
the two side beams are arranged side by side at intervals in the second direction;
the front edge beam is arranged on one side, facing the front mounting frame, of the two side edge beams, extends along the second direction, and two end parts of the front edge beam are connected with the two side edge beams respectively;
the rear edge beam and the front edge beam are oppositely arranged in the first direction, the rear edge beam extends along the second direction, and two end parts of the rear edge beam are respectively connected with the two side edge beams; and the number of the first and second groups,
the battery pack upper cover is horizontally arranged, the peripheral sides of the battery pack upper cover are respectively connected with the two side edge beams, the front edge beam and the rear edge beam, and the battery pack upper cover is used for enclosing together to form a mounting groove with a downward opening so as to mount the battery system tray structure;
wherein the mounting portion includes the mounting groove;
the front mounting frame is detachably connected with the front edge beam;
the rear mounting frame is removably connected to the rear side beam.
5. The lower body structure according to claim 4, wherein the battery system tray structure includes:
the tray comprises a tray frame and a battery pack lower cover plate, the tray frame is arranged in the mounting groove, the battery pack lower cover plate is arranged on one side, back to the bottom wall of the mounting groove, of the tray frame and used for being enclosed with the tray frame to form a cavity with one open side, and the opening of the cavity faces one side of the bottom wall of the mounting groove; and the number of the first and second groups,
the tray frame is provided with a plurality of internal beam bodies, and the internal beam bodies are arranged in the tray frame in a criss-cross mode and used for dividing the cavity into a plurality of installation cavities so as to be respectively used for placing corresponding battery pack elements.
6. The lower body structure of claim 1, wherein the rear mounting frame includes:
the two rear longitudinal beams are arranged side by side at intervals in the second direction, and each rear longitudinal beam extends along the first direction;
the rear cross beam is arranged on one side, facing the battery pack mounting frame, of the two rear longitudinal beams, extends along the second direction, and two end parts of the rear cross beam are connected with the two rear longitudinal beams respectively; and (c) a second step of,
the rear anti-collision beam and the rear cross beam are oppositely arranged in the first direction, the rear anti-collision beam extends along the second direction, and two end parts of the rear anti-collision beam are respectively connected with the two rear longitudinal beams;
wherein, the battery pack mounting frame is detachably connected with the rear cross beam.
7. The lower body structure of claim 6, wherein the rear mounting frame further comprises:
the two rear shock absorption towers are respectively arranged corresponding to the two rear longitudinal beams, and each rear shock absorption tower is arranged on the rear longitudinal beam on the corresponding side and close to the rear cross beam; and the number of the first and second groups,
and the two rear torsion boxes are respectively arranged at two ends of the rear cross beam in the second direction, and the side part of each rear torsion box is connected with the rear longitudinal beam on the corresponding side and the battery pack mounting frame.
8. The lower body structure of claim 1, wherein the front mounting frame and/or the battery pack mounting frame and/or the rear mounting frame is made of an aluminum alloy profile.
9. The lower body structure of claim 1, wherein the front mounting frame includes two front side rails, a front dash cross-member, a front impact beam, two front shock towers, and two front twist capsules;
the battery pack mounting frame comprises two side edge beams, a front edge beam and a rear edge beam;
the rear mounting frame comprises two rear longitudinal beams, a rear cross beam, a rear anti-collision beam, two rear shock absorption towers and two rear torsion boxes;
the automobile body connection structure includes front longitudinal beam connecting portion, preceding shock attenuation tower connecting portion, preceding torsion connecting portion, boundary beam connecting portion, back torsion connecting portion, back shock attenuation tower connecting portion and back longeron connecting portion, front longitudinal beam connecting portion are located the front longitudinal beam, preceding shock attenuation tower connecting portion are located preceding shock attenuation tower, preceding torsion connecting portion are located preceding box of twisting, boundary beam connecting portion are located the side boundary beam, back torsion connecting portion are located the back box of twisting, back shock attenuation tower connecting portion are located back shock attenuation tower, back longeron connecting portion are located back longeron.
10. A vehicle characterized by comprising the lower body structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221993446.5U CN217575354U (en) | 2022-07-29 | 2022-07-29 | Lower vehicle body structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221993446.5U CN217575354U (en) | 2022-07-29 | 2022-07-29 | Lower vehicle body structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217575354U true CN217575354U (en) | 2022-10-14 |
Family
ID=83535224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221993446.5U Active CN217575354U (en) | 2022-07-29 | 2022-07-29 | Lower vehicle body structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217575354U (en) |
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2022
- 2022-07-29 CN CN202221993446.5U patent/CN217575354U/en active Active
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