CN205819334U - A kind of lightweight automobile body-in-white - Google Patents
A kind of lightweight automobile body-in-white Download PDFInfo
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- CN205819334U CN205819334U CN201620829662.4U CN201620829662U CN205819334U CN 205819334 U CN205819334 U CN 205819334U CN 201620829662 U CN201620829662 U CN 201620829662U CN 205819334 U CN205819334 U CN 205819334U
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- assembly
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- longeron
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- vehicle body
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Abstract
This utility model relates to a kind of lightweight automobile body-in-white.This lightweight automobile body-in-white, including lower body assembly, described lower body assembly includes base plate skeleton, described base plate skeleton includes being located at two longerons of vehicle body both sides along vehicle body longitudinal direction and being installed on longeron front portion, middle part and the front housing assembly at rear portion, main floor unit and rear floor pan assembly, described longeron includes the front longitudinal that is front and back sequentially connected and middle longeron, during in two, the middle part of longeron passes through one, floor beam is connected, and after in two, the rear end of longeron passes through one, floor beam is connected.This lightweight automobile body-in-white, the more original ordinary vehicle type of tare reduces by 21%, greatly reduces the weight of body in white；By arranging battery fixing point on side wall assembly, make side wall assembly bear whole longitudinal loading, take full advantage of the rigidity of side wall assembly, simplify base arrangement；By Rear secondary frame for vehicle, vehicle body is attached with rear-suspension system, Rear secondary frame for vehicle bears most load that road surface passes over.
Description
Technical field
This utility model relates to a kind of lightweight automobile body-in-white.
Background technology
Along with the fast development of electric automobile industry, how improving the continual mileage of electric automobile becomes industry and pays close attention to
Problem, each manufacturer one after another from improve battery mass-energy ratio, use new material, use efficient control system, optimize car load framework
Etc. aspect study, to improve the continual mileage of electrocar.From the point of view of optimizing car load framework, current electric automobile is got off
The common configuration of body power transmission is: middle base plate bottom increases left-right longeron to carry out with front deck left-right longeron and rear base plate left-right longeron
Connecting, this mode of transfer force is vertical force structure, and the intensity of gusset not all of, cause body in white weight
Measure bigger.For realizing the light-weight design of electric automobile body in white, prevent the cost waste problem caused because of design surplus, design
One can meet body structure requirement of strength, and the body in white that can reduce again weight has become as numerous auto vendor to electronic vapour
Car carries out the important goal that research and development improve.
Summary of the invention
This utility model is in order to make up the deficiencies in the prior art, it is provided that a kind of reasonable in design, effectively solve and get off
The lightweight vapour of body in white weight is concentrated, reduced on the premise of ensureing enough torsional rigidities and bending stiffness to body and vehicle body stress
Car body in white, solves problems of the prior art.
This utility model is achieved by the following technical solution:
A kind of lightweight automobile body-in-white, including lower body assembly, described lower body assembly includes base plate skeleton, the described end
Framework includes being located at two longerons of vehicle body both sides along vehicle body longitudinal direction and being installed on longeron front portion, middle part and rear portion
Front housing assembly, main floor unit and rear floor pan assembly, described longeron includes the front longitudinal that is front and back sequentially connected and middle longeron, before two
The front end of longeron is connected by a condenser sill, and during in two, the middle part of longeron passes through one, floor beam is connected, longeron in two
Rear end be connected by floor beam after, on two side girders, be respectively equipped with a side wall assembly along vehicle body longitudinal direction, along car
Body horizontal direction is provided with a back wall inner panel at the top, rear end of rear floor pan assembly.
A Rear secondary frame for vehicle to the U-shaped of vehicle body back side direction opening, described rear secondary car it is provided with in the lower section of rear floor pan assembly
Two openings of frame are connected by a stabiliser bar, and the anteriomedial of Rear secondary frame for vehicle and the middle part of stabiliser bar are total with rear base plate respectively
Become to be connected.
The battery fixing point of self-contained battery it is respectively equipped with in the bottom of both sides side wall assembly.
The beneficial effects of the utility model are: this lightweight automobile body-in-white, simplify the structure of lower body assembly, cancel
Original ordinary vehicle type is used for bearing noseplate longeron and the noseplate crossbeam of load, weakens rear underframe longitudinal member, tare
More original ordinary vehicle type reduces by 21%, greatly reduces the weight of body in white；By arranging battery fixing point on side wall assembly,
Make side wall assembly bear whole longitudinal loading, take full advantage of the rigidity of side wall assembly, simplify base arrangement；By rear secondary car
Vehicle body is attached by frame with rear-suspension system, Rear secondary frame for vehicle bear most load that road surface passes over, only will be few
Fractional load passes to vehicle body, greatly reduces torsion and flexural deformation that vehicle body produces because bearing load, makes the torsion of vehicle body
Rigidity is better than the torsional rigidity of original ordinary vehicle type.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 be Fig. 1 look up structural representation；
Fig. 3 is the right TV structure schematic diagram of Fig. 1；
Fig. 4 is the CAE stress cloud atlas of tradition body in white stress model Bending Stiffness Analysis；
Fig. 5 is the CAE Aberration nephogram that tradition body in white stress model torsional rigidity is analyzed；
Fig. 6 is the CAE stress cloud atlas of this utility model body in white stress model Bending Stiffness Analysis；
Fig. 7 is the CAE Aberration nephogram that this utility model body in white stress model torsional rigidity is analyzed.
In figure, 1, front housing assembly, 2, main floor unit, 3, rear floor pan assembly, 4, front longitudinal, 5, middle longeron, 6, condenser
Sill, 7, middle floor beam, 8, rear floor beam, 9, side wall assembly, 10, back wall inner panel, 11, Rear secondary frame for vehicle, 12, stable
Bar, 13, battery fixing point.
Detailed description of the invention
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, and combine its accompanying drawing, to this reality
It is described in detail with novel.
As shown in figs. 1-3, this lightweight automobile body-in-white, including lower body assembly, described lower body assembly includes
Base plate skeleton, before described base plate skeleton includes being located at two longerons of vehicle body both sides along vehicle body longitudinal direction and being installed on longeron
The front housing assembly 1 at portion, middle part and rear portion, main floor unit 2 and rear floor pan assembly 3, described longeron includes front and back being sequentially connected
Front longitudinal 4 and middle longeron 5, the front end of two front longitudinals 4 is connected by a condenser sill 6, and in two, the middle part of longeron 5 passes through one
Middle floor beam 7 is connected, and after in two, the rear end of longeron 5 passes through one, floor beam 8 is connected, along vehicle body longitudinal direction at two side girders
On be respectively equipped with a side wall assembly 9, be provided with a back wall inner panel 10 along vehicle body horizontal direction at the top, rear end of rear floor pan assembly 3.
A Rear secondary frame for vehicle 11 to the U-shaped of vehicle body back side direction opening it is provided with in the lower section of rear floor pan assembly 4, described rear secondary
Two openings of vehicle frame 11 are connected by a stabiliser bar 12, and the anteriomedial of Rear secondary frame for vehicle 11 and the middle part of stabiliser bar 12 are respectively
It is connected with rear floor pan assembly 4.
The battery fixing point 13 of self-contained battery it is respectively equipped with in the bottom of both sides side wall assembly 1.
This utility model lightweight automobile body-in-white, simplifies the structure of lower body assembly, eliminates original ordinary vehicle type
It is used for bearing noseplate longeron and the noseplate crossbeam of load, weakens rear underframe longitudinal member, the more original ordinary vehicle type of tare
Reduce by 21%, greatly reduce the weight of body in white；By arranging battery fixing point on side wall assembly, side wall assembly is made to bear
All longitudinal loading, takes full advantage of the rigidity of side wall assembly, simplifies base arrangement；By Rear secondary frame for vehicle by vehicle body and rear overhang
Frame system is attached, Rear secondary frame for vehicle bear most load that road surface passes over, only small part load passed to
Vehicle body, greatly reduces torsion and flexural deformation that vehicle body produces because bearing load, makes the torsional rigidity of vehicle body be better than original general
The torsional rigidity of the type that is open to traffic.
Tradition body in white and this utility model body in white bending stiffness and torsional rigidity analysis:
1, tradition body in white stress model is analyzed:
A Bending Stiffness Analysis:
CAE stress nephanalysis result from Fig. 4 is it will be seen that the bending stiffness result of calculation of tradition body in white is
12562N/mm, more than desired value 10000N/mm.
B torsional rigidity is analyzed:
CAE Aberration nephogram analysis result from Fig. 5 is it will be seen that the torsional rigidity result of calculation of tradition body in white is
264KN·m/rad。
2, this utility model body in white stress model is analyzed:
A Bending Stiffness Analysis:
CAE stress nephanalysis result from Fig. 6 is it will be seen that the bending stiffness result of calculation of this utility model body in white
For 12269N/mm, more than desired value 10000N/mm.
B, torsional rigidity analysis:
CAE Aberration nephogram analysis result from Fig. 7 is it will be seen that the torsional rigidity result of calculation of this utility model body in white
For 10811N m/rad, more than desired value 10811N m/rad.
Can be drawn by cae analysis result, this utility model body in white is compared with tradition body in white, and this utility model is white
The bending stiffness of vehicle body is more or less the same than the bending stiffness of traditional body in white, is all higher than desired value 10000N/mm；Torsional rigidity side
Face, the torsional rigidity of novel body in white is 2.3 times of tradition body in white torsional rigidity, is reflected in control stability, this practicality
The car load of novel body-in-white structure is better than the car load control stability of traditional body-in-white structure.
This utility model does not describes part in detail, is the known technology of those skilled in the art of the present technique.Finally illustrate, with
Upper embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although with reference to preferred embodiment to this utility model
It is described in detail, it will be understood by those within the art that, the technical solution of the utility model can have been repaiied
Changing or equivalent, without deviating from objective and the scope of technical solutions of the utility model, it all should be contained at this utility model
Right in the middle of.
Claims (3)
1. a lightweight automobile body-in-white, is characterized in that: include that lower body assembly, described lower body assembly include base plate bone
Frame, described base plate skeleton include along vehicle body longitudinal direction be located at vehicle body both sides two longerons and be installed on longeron anterior, in
Portion and the front housing assembly at rear portion, main floor unit and rear floor pan assembly, described longeron include the front longitudinal that is front and back sequentially connected and
Middle longeron, the front end of two front longitudinals is connected by a condenser sill, floor beam phase during the middle part of longeron passes through in two
Even, after in two, the rear end of longeron passes through one, floor beam is connected, and is respectively equipped with side along vehicle body longitudinal direction on two side girders
Enclose assembly, be provided with a back wall inner panel along vehicle body horizontal direction at the top, rear end of rear floor pan assembly.
Lightweight automobile body-in-white the most according to claim 1, is characterized in that: be provided with in the lower section of rear floor pan assembly one to
The Rear secondary frame for vehicle of the U-shaped of vehicle body back side direction opening, two openings of described Rear secondary frame for vehicle are connected by a stabiliser bar, rear secondary car
The anteriomedial of frame body and the middle part of stabiliser bar are connected with rear floor pan assembly respectively.
Lightweight automobile body-in-white the most according to claim 1, is characterized in that: set respectively in the bottom of both sides side wall assembly
There is the battery fixing point of self-contained battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829662.4U CN205819334U (en) | 2016-07-31 | 2016-07-31 | A kind of lightweight automobile body-in-white |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829662.4U CN205819334U (en) | 2016-07-31 | 2016-07-31 | A kind of lightweight automobile body-in-white |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205819334U true CN205819334U (en) | 2016-12-21 |
Family
ID=57557619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620829662.4U Expired - Fee Related CN205819334U (en) | 2016-07-31 | 2016-07-31 | A kind of lightweight automobile body-in-white |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205819334U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860320A (en) * | 2018-06-22 | 2018-11-23 | 江苏卡威汽车工业集团股份有限公司 | Lightweight automobile body structure of car |
| WO2019001529A1 (en) * | 2017-06-30 | 2019-01-03 | 比亚迪股份有限公司 | Vehicle body structure and vehicle |
| CN113352865A (en) * | 2020-03-02 | 2021-09-07 | 北京新能源汽车股份有限公司 | Position determination method and device for battery pack mounting hole |
-
2016
- 2016-07-31 CN CN201620829662.4U patent/CN205819334U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001529A1 (en) * | 2017-06-30 | 2019-01-03 | 比亚迪股份有限公司 | Vehicle body structure and vehicle |
| CN108860320A (en) * | 2018-06-22 | 2018-11-23 | 江苏卡威汽车工业集团股份有限公司 | Lightweight automobile body structure of car |
| CN113352865A (en) * | 2020-03-02 | 2021-09-07 | 北京新能源汽车股份有限公司 | Position determination method and device for battery pack mounting hole |
| CN113352865B (en) * | 2020-03-02 | 2023-12-01 | 北京新能源汽车股份有限公司 | Method and device for determining positions of mounting holes of battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20210731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |