CN104554481A - Front floor framework for vehicle body and vehicle - Google Patents

Front floor framework for vehicle body and vehicle Download PDF

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Publication number
CN104554481A
CN104554481A CN201410829679.5A CN201410829679A CN104554481A CN 104554481 A CN104554481 A CN 104554481A CN 201410829679 A CN201410829679 A CN 201410829679A CN 104554481 A CN104554481 A CN 104554481A
Authority
CN
China
Prior art keywords
longeron
vehicle body
longitudinal floor
floor beam
cross member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410829679.5A
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Chinese (zh)
Inventor
常洪丰
张腾飞
蒋晨龙
刑栋
张寿琛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Great Wall Motor Co Ltd
Original Assignee
Great Wall Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Great Wall Motor Co Ltd filed Critical Great Wall Motor Co Ltd
Priority to CN201410829679.5A priority Critical patent/CN104554481A/en
Publication of CN104554481A publication Critical patent/CN104554481A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20Floors or bottom sub-units

Abstract

The invention provides a front floor framework for a vehicle body and a vehicle. The front floor framework for the vehicle body comprises a left threshold longitudinal beam, a right threshold longitudinal beam, a middle channel longitudinal beam and cross beams, wherein the cross beams are horizontally connected on the left threshold longitudinal beam, the middle channel longitudinal beam and the right threshold longitudinal beam; the cross beams comprise a front cross beam and a rear cross beam; the rear cross beam and the front cross beam are arranged at an interval; the front floor framework for the vehicle body further comprises a left floor longitudinal beam and a right floor longitudinal beam; the left floor longitudinal beam and the right floor longitudinal beam are both fixedly connected with the cross beams; the left floor longitudinal beam is fixedly connected with the left threshold longitudinal beam through a left connecting beam; the right floor longitudinal beam is fixedly connected with the right threshold longitudinal beam through a right connecting beam. When the vehicle is collided, the front floor framework for the vehicle body provided by the invention can transfer the collision force through the mutually connected longitudinal beams and two cross beams on the front floor framework for the vehicle body, so that the structure strength of the floor of the vehicle body is increased and the deformation of the passenger space at the colliding moment of the vehicle is reduced.

Description

Front floor of vehicle body framework and vehicle
Technical field
The present invention relates to automobile body technical field, particularly a kind of front floor of vehicle body framework and vehicle.
Background technology
The vehicle body of vehicle passes through the utilization of varying strength steel, occupant's safety is ensured by the mode such as energy-absorbing, crumple when colliding, and body platform is the basis of vehicle body, body platform carries the weight of body accessory and passenger's goods, also bear the load of generation in car motion, vibration, impact and moment of torsion simultaneously, and to ensure that when collision happens passenger space can not be out of shape as far as possible and excessively cause member injured, therefore, require that body platform has enough intensity and tired service life, wherein body platform skeleton plays Main Function.
When collision happens, what be vulnerable to the injury of external impact force most is position of driver, but in tradition, longitudinal floor beam and the crossbeam of front floor of vehicle body framework are provided separately, impulsive force in vehicle collisions cannot be disperseed actv., cause the intensity of front floor of vehicle body framework lower, cannot ensure the living space of chaufeur and passenger, safety is poor.
Therefore, wish that the front floor of vehicle body framework that intensity is higher can overcome or at least alleviate the above-mentioned defect of prior art.
Summary of the invention
In view of this, the present invention is intended to propose a kind of front floor of vehicle body framework, to improve the intensity of front floor of vehicle body framework.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of front floor of vehicle body framework, this front floor of vehicle body framework comprises left-hand door sill longeron, right threshold longeron, passage longeron between described left-hand door sill longeron and right threshold longeron, be connected laterally at described left-hand door sill longeron, crossbeam on described middle passage longeron and described right threshold longeron, described crossbeam comprises front cross rail and after cross member spaced with described front cross rail, described front floor of vehicle body framework also comprises the left longitudinal floor beam be arranged between described left-hand door sill longeron and described middle passage longeron and the right longitudinal floor beam be arranged between described right threshold longeron and described middle passage longeron, described left longitudinal floor beam is all fixedly connected with described crossbeam with described right longitudinal floor beam, and described left longitudinal floor beam is fixedly attached to described left-hand door sill longeron by left tie-beam, described right longitudinal floor beam is fixedly attached to described right threshold longeron by right tie-beam.
Further, described left longitudinal floor beam is fixedly connected with the front cross rail Part I of described front cross rail between described left-hand door sill longeron and described middle passage longeron, and described right longitudinal floor beam is fixedly connected with the front cross rail Part II of described front cross rail between described right threshold longeron and described middle passage longeron.
Further, described left longitudinal floor beam is fixedly connected with the after cross member Part I of described after cross member between described left-hand door sill longeron and described middle passage longeron, and described right longitudinal floor beam is fixedly connected with the after cross member Part II of described after cross member between described right threshold longeron and described middle passage longeron.
Further, one end of described left longitudinal floor beam extends between described front cross rail and described after cross member, and described left tie-beam is arranged on described one end place of described left longitudinal floor beam, one end of described right longitudinal floor beam extends between described front cross rail and described after cross member, and described right tie-beam is arranged on described one end place of described right longitudinal floor beam.
Further, at least one in described front cross rail and described after cross member is formed in one structure; Or described front cross rail comprises the separate front cross rail Part II being connected to the front cross rail Part I between described middle passage longeron and described left-hand door sill longeron and being connected between described middle passage longeron and described right threshold longeron, described after cross member comprises the separate described after cross member Part II being connected to the after cross member Part I between described middle passage longeron and described left-hand door sill longeron and being connected between described middle passage longeron and described right threshold longeron.
Further, described front cross rail and described after cross member symmetrical about described middle passage longeron.
Further, described left tie-beam is formed as the first triangular structure, and a bight of described first triangular structure is fixedly connected on described left-hand door sill longeron, and an edge of described first triangular structure is fixedly connected on described left longitudinal floor beam; Described right tie-beam is formed as the second triangular structure, and a bight of described second triangular structure is fixedly connected on described right threshold longeron, and an edge of described second triangular structure is fixedly connected on described right longitudinal floor beam.
Further, at least one in described left longitudinal floor beam, described right longitudinal floor beam and described middle passage longeron is formed in one structure.
Relative to prior art, front floor of vehicle body framework of the present invention has following advantage:
The left longitudinal floor beam of front floor of vehicle body framework of the present invention is connected with crossbeam with right longitudinal floor beam, and corresponding tie-beam is provided with between left and right longitudinal floor beam to left and right threshold longeron, when vehicle is collided, impact can be transmitted by interconnective longeron and two crossbeams, improve the structural strength of body platform, reduce the distortion of passenger space during collision happens, improve the safety of vehicle.
Another object of the present invention is to propose a kind of vehicle, to improve the intensity of the body framwork of vehicle.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of vehicle, is provided with above-mentioned front floor of vehicle body framework.
Further, the front portion of the front chair of described vehicle is mounted on described front cross rail, and the rear portion of described front chair is mounted on described after cross member.
The Dominant Facies that described vehicle and above-mentioned front floor of vehicle body framework have relative to prior art is same, does not repeat them here.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the front floor of vehicle body framework described in embodiments of the invention.
Description of reference numerals:
1-left-hand door sill longeron, the left longitudinal floor beam of 2-, passage longeron in 3-, the right longitudinal floor beam of 4-, the right threshold longeron of 5-, 6-front cross rail, 61-front cross rail Part II, 62-front cross rail Part I, the right tie-beam of 7-, 71-second triangular structure, 8-after cross member, 81-after cross member Part II, 82-after cross member Part I, the left tie-beam of 9-, 91-first triangular structure.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
In addition, mentioned left and right in an embodiment of the present invention, refer to the left and right of the front floor of vehicle body framework shown in accompanying drawing, " longeron ", namely along the beam that vehicle lengthwise direction extends, " crossbeam " is namely along the beam that vehicle-width direction extends.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
See Fig. 1, the invention provides a kind of front floor of vehicle body framework, this front floor of vehicle body framework comprises left-hand door sill longeron 1, right threshold longeron 5, passage longeron 3 between left-hand door sill longeron 1 and right threshold longeron 5, be connected laterally at left-hand door sill longeron 1, crossbeam on middle passage longeron 3 and right threshold longeron 5, described crossbeam comprises front cross rail 6 and after cross member 8 spaced with front cross rail 6, described front floor of vehicle body framework also comprises the left longitudinal floor beam 2 be arranged between left-hand door sill longeron 1 and middle passage longeron 3 and the right longitudinal floor beam 4 be arranged between right threshold longeron 5 and middle passage longeron 3, left longitudinal floor beam 2 is all fixedly connected with described crossbeam with right longitudinal floor beam 4, and left longitudinal floor beam 2 is fixedly attached to left-hand door sill longeron 1 by left tie-beam 9, right longitudinal floor beam 4 is fixedly attached to right threshold longeron 5 by right tie-beam 7.
The left longitudinal floor beam 2 of front floor of vehicle body framework of the present invention is connected with crossbeam with right longitudinal floor beam 4, and corresponding tie-beam is provided with between left and right longitudinal floor beam to left and right threshold longeron, when vehicle is collided, impact can be transmitted by interconnective longeron and two crossbeams, improve the structural strength of body platform, reduce the distortion of passenger space during collision happens, improve the safety of vehicle.
The quantity of described crossbeam can carry out suitable selection as required, preferably has two crossbeams, and two crossbeams significantly can improve the intensity of front floor of vehicle body framework, and front floor of vehicle body framework can not be made overweight.
Preferably, left longitudinal floor beam 2 is fixedly connected with the front cross rail Part I 62 of front cross rail 6 between left-hand door sill longeron 1 and middle passage longeron 3, and right longitudinal floor beam 4 is fixedly connected with the front cross rail Part II 61 of front cross rail 6 between right threshold longeron 5 and middle passage longeron 3.Above-mentioned connection mode makes left longitudinal floor beam 2 be connected with crossbeam with right longitudinal floor beam 4 under the prerequisite of intensity ensureing vehicle body front floor framework, makes front floor of automobile body skeleton structure compact.
Under the prerequisite that tare allows, preferably, left longitudinal floor beam 2 is fixedly connected with the after cross member Part I 82 of after cross member 8 between left-hand door sill longeron 1 and middle passage longeron 3, and right longitudinal floor beam 4 is fixedly connected with the after cross member Part II 81 of after cross member 8 between right threshold longeron 5 and middle passage longeron 3.Left longitudinal floor beam 2 is connected with front cross rail 6 and after cross member 8, to improve the intensity of front floor of vehicle body framework further with right longitudinal floor beam 4 simultaneously.
Suitable position can be selected according to actual conditions in the position of left tie-beam 9 and right tie-beam 7, see Fig. 1, preferably, one end of left longitudinal floor beam 2 extends between front cross rail 6 and after cross member 8, and left tie-beam 9 is arranged on described one end place of left longitudinal floor beam 2, one end of right longitudinal floor beam 4 extends between front cross rail 6 and after cross member 8, and is arranged on described one end place of right longitudinal floor beam 4 at right tie-beam 7.Usually, front cross rail 6 is arranged on the front side of front vehicle seats chair, after cross member 8 is arranged on the rear side of front vehicle seats chair, so left tie-beam 9 and right tie-beam 7 are arranged between front cross rail 6 and after cross member 8 and can improve the intensity of front floor of vehicle body framework at front vehicle seats chair place, reduce the Deformation of Body Framework of passenger position when collision happens, improve the safety of vehicle.
Preferably, at least one in front cross rail 6 and after cross member 8 is formed in one structure; Or front cross rail 6 comprises the separate front cross rail Part II 61 being connected to the front cross rail Part I 62 between middle passage longeron 3 and left-hand door sill longeron 1 and being connected between middle passage longeron 3 and right threshold longeron 5, after cross member 8 comprises the separate after cross member Part II 81 being connected to the after cross member Part I 82 between middle passage longeron 3 and left-hand door sill longeron 1 and being connected between middle passage longeron 3 and right threshold longeron 5.Front cross rail 6 and the after cross member 8 of integrated formed structure have higher intensity, but, because the oblique side of middle passage longeron 3 is provided with the vehicle longitudinal axis usually, passage longeron 3 in great majority is raised up, be not easy to the front cross rail 6 of integrated formed structure and the layout of after cross member 8, therefore, when front cross rail 6 and the after cross member 8 inconvenience layout of integrated formed structure, front cross rail 6 and after cross member 8 can be arranged on segmentation structure, fix respectively in the left side of middle passage longeron 3 and right side.
Preferably, front cross rail 6 and after cross member 8 symmetrical about middle passage longeron 3.Symmetrical structure makes the structural stability of front floor of vehicle body framework higher.
The power transmission passage of the impact force when setting of left tie-beam 9 and right tie-beam 7 can increase collision happens, improve the intensity of front floor of vehicle body framework, wherein, the moulding of left tie-beam 9 and right tie-beam 7 can select suitable moulding according to actual needs.Preferably, the bight that left tie-beam 9 is formed as the first triangular structure 91, first triangular structure 91 is fixedly connected on left-hand door sill longeron 1, and an edge of the first triangular structure 91 is fixedly connected on described left longitudinal floor beam 2; The bight that right tie-beam 7 is formed as the second triangular structure 71, second triangular structure 71 is fixedly connected on right threshold longeron 5, and an edge of the second triangular structure 71 is fixedly connected on right longitudinal floor beam 4.
Above-mentioned triangular structure refers to the structures such as the beam of industrial application structure roughly triangular in shape, is not the triangle of the standard of refering in particular to defined in mathematics.
See Fig. 1, a bight of the first triangular structure 91 is fixedly connected on left-hand door sill longeron 1, an edge relative with a described bight of the first triangular structure 91 is fixedly connected on on the left longitudinal floor beam 2 of the substantially parallel setting of left-hand door sill longeron 1, when vehicle generation side collision, left tie-beam 9 intensity being formed as the first triangular structure 91 is higher, can further improve the intensity of front floor of vehicle body framework, in like manner, the right tie-beam 7 being formed as the second triangular structure 71 also can further improve the intensity of front floor of vehicle body framework.
Preferably, at least one in left longitudinal floor beam 2, right longitudinal floor beam 4 and middle passage longeron 3 is formed in one structure.The intensity of integrated formed structure is higher, and is convenient to assembling and positioning, can further improve the intensity of front floor of vehicle body framework.Further preferably, left longitudinal floor beam 2, right longitudinal floor beam 4 and middle passage longeron 3 are integrated formed structure, to improve the intensity of front floor of vehicle body framework further.
According to another aspect of the present invention, also provide a kind of vehicle, this vehicle set has above-mentioned front floor of vehicle body framework.
Preferably, the front portion of the front chair of described vehicle is mounted on front cross rail 6, and the rear portion of described front chair is mounted on after cross member 8.Position the highest for intensity on front floor of vehicle body framework is arranged on front chair place, the safety of the guarantee passengers inside the car of maximum possible when colliding.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a front floor of vehicle body framework, it is characterized in that, this front floor of vehicle body framework comprises left-hand door sill longeron (1), right threshold longeron (5), be arranged in the passage longeron (3) between described left-hand door sill longeron (1) and right threshold longeron (5), be connected laterally at described left-hand door sill longeron (1), crossbeam on described middle passage longeron (3) and described right threshold longeron (5), described crossbeam comprise front cross rail (6) and with described front cross rail (6) spaced after cross member (8), described front floor of vehicle body framework also comprises the left longitudinal floor beam (2) be arranged between described left-hand door sill longeron (1) and described middle passage longeron (3) and the right longitudinal floor beam (4) be arranged between described right threshold longeron (5) and described middle passage longeron (3), described left longitudinal floor beam (2) is all fixedly connected with described crossbeam with described right longitudinal floor beam (4), and described left longitudinal floor beam (2) is fixedly attached to described left-hand door sill longeron (1) by left tie-beam (9), described right longitudinal floor beam (4) is fixedly attached to described right threshold longeron (5) by right tie-beam (7).
2. front floor of vehicle body framework according to claim 1, it is characterized in that, the front cross rail Part I (62) that described left longitudinal floor beam (2) and described front cross rail (6) are arranged between described left-hand door sill longeron (1) and described passage longeron (3) is fixedly connected with, and the front cross rail Part II (61) that described right longitudinal floor beam (4) and described front cross rail (6) are arranged between described right threshold longeron (5) and described passage longeron (3) is fixedly connected with.
3. front floor of vehicle body framework according to claim 2, it is characterized in that, the after cross member Part I (82) that described left longitudinal floor beam (2) and described after cross member (8) are arranged between described left-hand door sill longeron (1) and described passage longeron (3) is fixedly connected with, and the after cross member Part II (81) that described right longitudinal floor beam (4) and described after cross member (8) are arranged between described right threshold longeron (5) and described passage longeron (3) is fixedly connected with.
4. front floor of vehicle body framework according to claim 2, it is characterized in that, one end of described left longitudinal floor beam (2) extends between described front cross rail (6) and described after cross member (8), and described left tie-beam (9) is arranged on described one end place of described left longitudinal floor beam (2), one end of described right longitudinal floor beam (4) extends between described front cross rail (6) and described after cross member (8), and described right tie-beam (7) is arranged on described one end place of described right longitudinal floor beam (4).
5., according to the front floor of vehicle body framework in claim 1-4 described in any one, it is characterized in that,
At least one in described front cross rail (6) and described after cross member (8) is formed in one structure; Or
Described front cross rail (6) comprises the separate front cross rail Part II (61) being connected to the front cross rail Part I (62) between described middle passage longeron (3) and described left-hand door sill longeron (1) and being connected between described middle passage longeron (3) and described right threshold longeron (5), and described after cross member (8) comprises the separate described after cross member Part II (81) being connected to the after cross member Part I (82) between described middle passage longeron (3) and described left-hand door sill longeron (1) and being connected between described middle passage longeron (3) and described right threshold longeron (5).
6. front floor of vehicle body framework according to claim 5, is characterized in that, described front cross rail (6) and described after cross member (8) symmetrical about described middle passage longeron (3).
7. front floor of vehicle body framework according to claim 1, is characterized in that,
Described left tie-beam (9) is formed as the first triangular structure (91), a bight of described first triangular structure (91) is fixedly connected on described left-hand door sill longeron (1), and an edge of described first triangular structure (91) is fixedly connected on described left longitudinal floor beam (2);
Described right tie-beam (7) is formed as the second triangular structure (71), a bight of described second triangular structure (71) is fixedly connected on described right threshold longeron (5), and an edge of described second triangular structure (71) is fixedly connected on described right longitudinal floor beam (4).
8. front floor of vehicle body framework according to claim 1, is characterized in that, at least one in described left longitudinal floor beam (2), described right longitudinal floor beam (4) and described middle passage longeron (3) is formed in one structure.
9. a vehicle, is characterized in that, is provided with the front floor of vehicle body framework in claim 1-8 described in any one.
10. vehicle according to claim 9, is characterized in that, the front portion of the front chair of described vehicle is mounted on described front cross rail (6), and the rear portion of described front chair is mounted on described after cross member (8).
CN201410829679.5A 2014-12-26 2014-12-26 Front floor framework for vehicle body and vehicle Pending CN104554481A (en)

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CN201410829679.5A CN104554481A (en) 2014-12-26 2014-12-26 Front floor framework for vehicle body and vehicle

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Application Number Priority Date Filing Date Title
CN201410829679.5A CN104554481A (en) 2014-12-26 2014-12-26 Front floor framework for vehicle body and vehicle

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105501311A (en) * 2015-12-30 2016-04-20 广州汽车集团股份有限公司 Rear part energy absorbing structure of vehicle body
CN109204467A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Body structure and vehicle
CN109760747A (en) * 2019-02-22 2019-05-17 奇瑞汽车股份有限公司 Automobile reinforcing mechanisms and automobile
CN110949109A (en) * 2019-12-19 2020-04-03 东风汽车集团有限公司 Vehicle body bottom plate framework structure for loading large-capacity battery box

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CN201989862U (en) * 2011-02-22 2011-09-28 浙江吉利汽车研究院有限公司 Front floor structure of mini car
CN202089121U (en) * 2011-05-31 2011-12-28 浙江吉利汽车研究院有限公司 Automobile front-floor framework structure
CN102328700A (en) * 2011-06-08 2012-01-25 浙江吉利汽车研究院有限公司 Vehicle front floor strengthening structure
CN102390438A (en) * 2011-10-18 2012-03-28 东风汽车公司 Floor structure with bulky object loading function
KR20120057674A (en) * 2010-08-02 2012-06-07 (주)브이이엔에스 Electric vehicle
CN104129439A (en) * 2014-07-01 2014-11-05 浙江吉利控股集团有限公司 Front floor assembly structure suitable for platform vehicle type

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Publication number Priority date Publication date Assignee Title
US5992921A (en) * 1996-03-19 1999-11-30 Toyota Jidosha Kabushiki Kaisha Vehicle body structure
KR20120057674A (en) * 2010-08-02 2012-06-07 (주)브이이엔에스 Electric vehicle
CN201989862U (en) * 2011-02-22 2011-09-28 浙江吉利汽车研究院有限公司 Front floor structure of mini car
CN202089121U (en) * 2011-05-31 2011-12-28 浙江吉利汽车研究院有限公司 Automobile front-floor framework structure
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105501311A (en) * 2015-12-30 2016-04-20 广州汽车集团股份有限公司 Rear part energy absorbing structure of vehicle body
CN109204467A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Body structure and vehicle
CN109760747A (en) * 2019-02-22 2019-05-17 奇瑞汽车股份有限公司 Automobile reinforcing mechanisms and automobile
CN110949109A (en) * 2019-12-19 2020-04-03 东风汽车集团有限公司 Vehicle body bottom plate framework structure for loading large-capacity battery box

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