CN103448809B - A kind of automobile-used butterfly shape brace panel and adopt the front floor panel structure of this brace panel - Google Patents
A kind of automobile-used butterfly shape brace panel and adopt the front floor panel structure of this brace panel Download PDFInfo
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- CN103448809B CN103448809B CN201310005812.0A CN201310005812A CN103448809B CN 103448809 B CN103448809 B CN 103448809B CN 201310005812 A CN201310005812 A CN 201310005812A CN 103448809 B CN103448809 B CN 103448809B
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- stage casing
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Abstract
The present invention relates to a kind of automobile-used butterfly shape brace panel, it comprises plate shape body, and body corner, respectively towards outer oblique extension, forms two front connecting portions of convex, connecting portion after two, integral structure is symmetrical, and the sidewall between abutting connection is all in the arc inwardly shunk.The present invention adopts the front floor panel structure of automobile-used butterfly shape brace panel, and it comprises left longeron stage casing assembly, right vertical beam stage casing assembly, left front floor, right front floor, the centre gangway connecting front floor, left and right, butterfly shape brace panel and seat beam and other attached reinforcement structures; Brace panel is arranged on the bottom of centre gangway, be fixedly connected with left longeron stage casing right part, right vertical beam stage casing left part by bolt, be closed into a closed cavity between the bottom of centre gangway and brace panel, the section of this cavity is in being formed shape that is flat, that be arched top with lower arcuate surface inside centre gangway with the inside face of brace panel.
Description
Technical field
The present invention relates to a kind of automobile chassis structures, especially relate to a kind of brace panel of centre gangway and front floor.
Background technology
General front floor structure of vehicle body comprises left longeron stage casing assembly, right vertical beam stage casing assembly, left front floor, right front floor, the centre gangway connecting front floor, left and right and seat beam and other attached reinforcement structures, due to bottom centre gangway by other chassis member such as freeing pipes, therefore centre gangway is typically designed to the shape of lower plane protuberance, front floor is divided into two parts in left and right.
When vehicle frontal collision, when especially front 40% offset collision occurs, when huge impact force is by longeron stage casing assembly, a part of power is transmitted backward by threshold and floor, and a part of power is transmitted to the centre gangway in the middle part of vehicle.Centre gangway structure is more weak, and the structure backing deficiency connected to centre gangway bends rapidly under impact force effect, and ground slab integral distortion before causing, passenger inside the vehicle or dummy's body rotate, and head can not hit air bag exactly and damage.And when side collision occurs, due to the obstruct of centre gangway, impact force can not be delivered to the opposite side of vehicle well, cause one-sided crew module's gross distortion, occupant's living space is subject to extreme influence.
Therefore, in order to improve safety performance, centre gangway can be arranged some brace panels along vehicle body left and right directions, the such as public technology of " the reinforcement structure of automobile central passage " (publication number 201472480U) by name, in the disclosure technology, the surface of its centre gangway is installed with some pieces of brace panels, and the surface configuration of the centre gangway that the shape of this brace panel contacts with it matches.Because freeing pipe runs through bottom centre gangway from front to back, for dodging freeing pipe and ensure enough safety gaps, centre gangway surface elevation, brace panel also can only be designed to concave structure, to match with centre gangway surface, such as, structure shown by aforementioned public technology; The brace panel of this concave structure, the effect that power is transmitted is undesirable, and generally is easily difficult to play intermal force in concavity location distortion when side collision occurs.In addition, for front floor panel structure, not only easy stress deformation during side collision is influenced also very large during head-on crash; During Frontal offset impact, centre gangway front end is sharply out of shape phenomenons such as causing generation floor cracking, crew module's distortion usually.
Summary of the invention
Main purpose of the present invention is to provide a kind of automobile-used butterfly shape brace panel, this brace panel adopts butterfly structure, intensity is high, strong shock resistance, the impact force in front, side can be reached opposite side from side effectively, has taken into account vehicle body the dredging and disperse of impact force when head-on crash and side collision.
Another object of the present invention is to provide a kind of automobile-used front floor panel structure, this front floor adopts automobile-used butterfly shape brace panel to connect left longeron stage casing right part, right vertical beam stage casing left part, can fully absorb and weaken impact force, the collision deformation that vehicle body is one-sided can be decreased, ensure that the integraty of occupant's living space to a great extent.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: a kind of automobile-used butterfly shape brace panel, comprise the body of plate shape, it is characterized in that: described body corner is respectively towards outer oblique extension, form two front connecting portions of convex, connecting portion after two, integral structure is symmetrical, and the sidewall between abutting connection is all in the arc inwardly shunk.Compared to the concave structure of aforementioned prior art, body party of the present invention is tabular, its intensity side impacting force that is large, that can bear is large, especially under the impact of side force, not easily there is crimp, effectively the impact force in front, side can be reached opposite side from side, thus take into account vehicle body the dredging and disperse of impact force when head-on crash and side collision; And corner extends into protruding structure while the intensity strengthening body, and the space that its four sides curved wall is formed, effectively can dodge the miscellaneous parts such as freeing pipe, play loss of weight effect simultaneously.
Due to the impulsive force of Frontal offset impact, first act on the front connecting portion of this side, more externally transmit dispersion by the connecting portion of opposite side, therefore, rear connecting portion mainly plays the effect that power is transmitted, and front connecting portion is except power transmission, also wants the impact of holding capacity; Resist the ability of Frontal offset impact to improve, as preferably, the spacing of two front connecting portions is greater than the spacing of connecting portion after two, and intrinsic single is front wide and rear narrow structure.Adopt front wide and rear narrow structure, make brace panel body when equivalent weight, the solid volume of front connecting portion can be strengthened, make that the structural strength of its front end is larger, impact resistance is stronger, thus strengthen the impact resistance of brace panel entirety, under higher impact force action, also not easily produce blastic deformation.
For alleviating the overall weight of brace panel, as preferably, the middle part of described body arranges groove, and groove is X-type, and four ends extend to the top of connecting portion after two front connecting portions and two respectively; Be provided with reinforced rib in groove, this reinforced rib corner extends in groove, outline and groove X-type outline adaptation.This structure, improves bulk strength, manufactures simple, stabilized structure.
As preferably, at two front connecting portions, the end of connecting portion is provided with the through hole installed after two, and cornerwise intersection point of four through holes is in directly over body entity or falls in body entity.Adopt through-hole structure, brace panel is fixedly connected with vehicle body by bolt, there is not welding process problem, easy for installation.Cornerwise intersection point of through hole is in directly over body entity or falls in body entity, time the side impact force that front connecting portion is born passes to the rear connecting portion of opposite side, the through brace panel entity of power transfer route, avoids the ability of the opposing side that can further improve brace panel entity; This brace panel is fixedly connected with vehicle body by bolt, there is not welding process problem, easy for installation.
As preferably, the sidewall connecting two front connecting portions is front side wall, and after connecting two, the sidewall of connecting portion is rear wall, and the radius of curvature of front side wall is greater than the radius of curvature of rear wall.Can further improve the structural strength of brace panel front end, improve the impulsive force resistivity in offside front, and alleviate overall weight.
As preferably, the top of body extends to a lateral buckling, forms kink.The structure of kink can make full use of space, and improves the bend resistance ability of brace panel, makes brace panel not easily in impact, produce bending distortion, can also retain more space and interfere to avoid being formed between freeing pipe.
As preferably, the reference position of kink from start line, the entity in the middle part of the through body of this start line.The entity of reference position is coherent section, larger than the structural strength only through two connecting portions, bend resistance ability is stronger.
A kind of front floor panel structure adopting automobile-used butterfly shape brace panel of the present invention, it comprises left longeron stage casing assembly, right vertical beam stage casing assembly, left front floor, right front floor, the centre gangway connecting front floor, left and right, butterfly shape brace panel and seat beam and other attached reinforcement structures; Left longeron stage casing assembly comprises left longeron stage casing for directly transmitting impact force and for disperseing the left longeron stage casing left part of impact force, left longeron stage casing right part; Right vertical beam stage casing assembly comprises right vertical beam stage casing for directly transmitting impact force and for disperseing right vertical beam stage casing left part, the right vertical beam stage casing right part of impact force; It is characterized in that: butterfly shape brace panel is arranged on the bottom of centre gangway, be fixedly connected with left longeron stage casing right part, right vertical beam stage casing left part by bolt, be closed into a closed cavity between the bottom of centre gangway and butterfly shape brace panel, the section of this cavity is in being formed shape that is flat, that be arched top with lower arcuate surface inside centre gangway with the inside face of butterfly shape brace panel.Compared to the spill brace panel structure in aforementioned prior art, the closed cavity structure of this programme is formed flat with butterfly shape brace panel, the support of this flat formation horizontal direction, and its structural strength produces distortion greatly, not easily, impact resistance is stronger, can fully absorb and weaken impact force; In addition, this flat cavity body structure, cavity cross-section is long-pending large, can have enough spaces and allow freeing pipe pass from cavity, thus saves space shared bottom the integral structure of front floor.When side collision occurs, be delivered to the opposite side of vehicle body by butterfly shape brace panel from the impact force of side; Thus reduce the one-sided collision deformation of vehicle body, ensure that the integraty of occupant's living space to a great extent.
As preferably, the top of butterfly shape brace panel body extends to form kink to a lateral buckling, and this kink is arranged at the front end of vehicle direct of travel, and overbending direction is towards centre gangway.This structure, when do not form with parts such as freeing pipes interfere, the kink of butterfly shape brace panel can strengthen the structural strength of cavity further, both can strengthen the impact resistance in front, can strengthen again the impact resistance of side.
As preferably, butterfly shape brace panel is bolted and is fixed together with left longeron stage casing assembly, right vertical beam stage casing assembly, and remaining part is fixedly connected by welding together.Butterfly shape brace panel is fixedly connected with vehicle body by bolt, there is not welding process problem, easy for installation.
Therefore, a kind of automobile-used butterfly shape brace panel of the present invention have rational in infrastructure, be easy to the features such as making, especially structural strength side impacting force that is large, that can bear is large, not easily crimp is there is under the impact of side force, effectively the impact force in front, side can be reached opposite side from side, thus take into account vehicle body the dredging and disperse of impact force when head-on crash and side collision; While the intensity strengthening body, the space that its four sides curved wall is formed, effectively can dodge the miscellaneous parts such as freeing pipe, play loss of weight effect simultaneously.
A kind of front floor panel structure adopting automobile-used butterfly shape brace panel of the present invention, a closed cavity will be closed between the bottom of centre gangway and butterfly shape brace panel, the support of the flat formation horizontal direction of this cavity, its structural strength produces distortion greatly, not easily, impact resistance is stronger, can fully absorb and weaken impact force.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present invention automobile-used butterfly shape brace panel;
Accompanying drawing 2 is lateral plans of accompanying drawing 1;
Accompanying drawing 3 is birds-eye vieies of accompanying drawing 1;
Accompanying drawing 4 is axonometric drawings of accompanying drawing 1;
Accompanying drawing 5 is a kind of structural representations that the present invention adopts the front floor panel structure of automobile-used butterfly shape brace panel;
Accompanying drawing 6 is lateral plans of accompanying drawing 5;
Accompanying drawing 7 be the present invention adopt the front floor panel structure of automobile-used butterfly shape brace panel axonometric drawing.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of automobile-used butterfly shape brace panel of the present invention, as shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, it comprises the body of plate shape, body corner is respectively towards outer oblique extension, connecting portion 52 after two front connecting portions 51, two of formation convex, integral structure is symmetrical, and the sidewall 55,56,57,58 between abutting connection is all in the arc inwardly shunk.
The middle part of body arranges groove 53, and groove 53 is in X-type, and four ends extend to the top of connecting portion 52 after two front connecting portions 51 and two respectively; Be provided with reinforced rib 54 in groove 53, this reinforced rib 54 4 jiaos extends in groove 53, and the X-type outline of outline and groove 53 is adaptive.
The spacing of two front connecting portions 51 is greater than the spacing of connecting portion 52 after two, and intrinsic single is front wide and rear narrow structure.After two front connecting portions 51, two, the end of connecting portion 52 is provided with the through hole installed, and cornerwise intersection point of four through holes is in directly over body entity or falls in body entity.Cornerwise intersection point of through hole is in directly over body entity or falls in body entity, time the side impact force that front connecting portion is born passes to the rear connecting portion of opposite side, and the through brace panel entity of power transfer route.
The sidewall connecting two front connecting portions 51 is front side wall 55, and after connecting two, the sidewall of connecting portion 52 is rear wall 56, and the radius of curvature of front side wall 55 is greater than the radius of curvature of rear wall 56.
The top of body extends to a lateral buckling, forms kink.Preferably select as one, the reference position of kink from start line 59, the entity in the middle part of the through body of this start line 59.If start line is not only through two connecting portions by middle part entity, then the entity of reference position is the two-stage structure separated, and two-stage structure can affect structural strength; And the entity in the middle part of the through body of start line 59, then the entity of kink reference position is coherent entire section structure, larger than the structural strength only through two connecting portions, bend resistance ability is stronger.
Embodiment 2: a kind of front floor panel structure adopting automobile-used butterfly shape brace panel described in claim 1 of the present invention, as shown in accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, it comprises left longeron stage casing assembly, right vertical beam stage casing assembly, left front floor 1, right front floor 9, the centre gangway 10 connecting front floor, left and right, butterfly shape brace panel 5 and seat beam and other attached reinforcement structures; Left longeron stage casing assembly comprises left longeron stage casing 8 for directly transmitting impact force and for disperseing the left longeron stage casing left part 7 of impact force, left longeron stage casing right part 6; Right vertical beam stage casing assembly comprises right vertical beam stage casing 2 for directly transmitting impact force and for disperseing right vertical beam stage casing left part 4, the right vertical beam stage casing right part 3 of impact force; Butterfly shape brace panel 5 is arranged on the bottom of centre gangway 10, be fixedly connected with left longeron stage casing right part 6, right vertical beam stage casing left part 4 by bolt, be closed into a closed cavity 510 between the bottom of centre gangway 10 and butterfly shape brace panel 5, the section of this cavity 510 is in being formed shape that is flat, that be arched top with lower arcuate surface inside centre gangway 10 with the inside face of butterfly shape brace panel 5.
The top of butterfly shape brace panel 5 body extends to form kink to a lateral buckling, and this kink is arranged at the front end of vehicle direct of travel, and overbending direction is towards centre gangway 10.Butterfly shape brace panel 5 is bolted and is fixed together with left longeron stage casing assembly 11, right vertical beam stage casing assembly 12, and remaining part is fixedly connected by welding together.
When front 40% offset collision occurs, be passed to the impact force of longeron assembly from forward engine room while being passed to side threshold and rear floor, effectively can be distributed to the opposite side of vehicle body by the transmission of butterfly shape brace panel; When side collision occurs, be delivered to the opposite side of vehicle body by butterfly shape brace panel from the impact force of side; Thus decrease the one-sided collision deformation of vehicle body, ensure that the integraty of occupant's living space to a great extent.
Brace panel entirety provided by the invention, in butterfly shape, has effectively been dodged the miscellaneous parts such as freeing pipe, has been played loss of weight effect simultaneously; This brace panel devises reinforced rib and improves bulk strength, manufactures simple, stabilized structure; This brace panel is fixedly connected with vehicle body by bolt, there is not welding process problem, easy for installation.
Orientation described by the term positions such as upper and lower, left and right as herein described is direction shown in accompanying drawing 1.
Claims (9)
1. an automobile-used butterfly shape brace panel, comprise the body of plate shape, it is characterized in that: described body corner is respectively towards outer oblique extension, form two front connecting portions (51) of convex, connecting portion (52) after two, integral structure is symmetrical, and the sidewall between abutting connection is all in the arc inwardly shunk; The middle part of described body arranges groove (53), and groove (53) is in X-type, and four ends extend to the top of connecting portion (52) after two front connecting portions (51) and two respectively; Be provided with reinforced rib (54) in groove (53), this reinforced rib (54) corner extends in groove (53), outline and groove (53) X-type outline adaptation.
2. one according to claim 1 automobile-used butterfly shape brace panel, is characterized in that: the spacing of two front connecting portions (51) is greater than the spacing of connecting portion (52) after two, and intrinsic single is front wide and rear narrow structure.
3. one according to claim 1 automobile-used butterfly shape brace panel, it is characterized in that: two front connecting portions (51), the end of connecting portion (52) is provided with the through hole installed after two, and cornerwise intersection point of four through holes is in directly over body entity or falls in body entity.
4. one according to claim 1 automobile-used butterfly shape brace panel, it is characterized in that: the sidewall connecting two front connecting portions (51) is front side wall (55), after connecting two, the sidewall of connecting portion (52) is rear wall (56), and the radius of curvature of front side wall (55) is greater than the radius of curvature of rear wall (56).
5. the one automobile-used butterfly shape brace panel according to claim 1 or 2 or 3 or 4, is characterized in that: the top of body extends to a lateral buckling, forms kink.
6. one according to claim 5 automobile-used butterfly shape brace panel, is characterized in that: the reference position of kink from start line (59), the entity in the middle part of this start line (59) through body.
7. adopt a front floor panel structure for automobile-used butterfly shape brace panel described in claim 1, comprise left longeron stage casing assembly, right vertical beam stage casing assembly, left front floor (1), right front floor (9), the centre gangway (10) connecting front floor, left and right, butterfly shape brace panel (5) and seat beam and other attached reinforcement structures; Left longeron stage casing assembly comprises left longeron stage casing (8) for directly transmitting impact force and for disperseing left longeron stage casing left part (7) of impact force, left longeron stage casing right part (6); Right vertical beam stage casing assembly comprises right vertical beam stage casing (2) for directly transmitting impact force and for disperseing right vertical beam stage casing left part (4), right vertical beam stage casing right part (3) of impact force; It is characterized in that: butterfly shape brace panel (5) is arranged on the bottom of centre gangway (10), be fixedly connected with left longeron stage casing right part (6), right vertical beam stage casing left part (4) by bolt, be closed into a closed cavity (510) between the bottom of centre gangway (10) and butterfly shape brace panel (5), the section of this cavity (510) in is formed with the inside face of butterfly shape brace panel (5) flat, be the shape of arched top with lower arcuate surface inside centre gangway (10).
8. front floor panel structure according to claim 7, is characterized in that: the top of butterfly shape brace panel (5) body extends to form kink to a lateral buckling, and this kink is located at the front end of vehicle direct of travel, and overbending direction is towards centre gangway (10).
9. floor panel structure before according to claim 7 or 8, is characterized in that: butterfly shape brace panel (5) is bolted and is fixed together with left longeron stage casing assembly (11), right vertical beam stage casing assembly (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005812.0A CN103448809B (en) | 2013-01-07 | 2013-01-07 | A kind of automobile-used butterfly shape brace panel and adopt the front floor panel structure of this brace panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005812.0A CN103448809B (en) | 2013-01-07 | 2013-01-07 | A kind of automobile-used butterfly shape brace panel and adopt the front floor panel structure of this brace panel |
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| CN103448809A CN103448809A (en) | 2013-12-18 |
| CN103448809B true CN103448809B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310005812.0A Active CN103448809B (en) | 2013-01-07 | 2013-01-07 | A kind of automobile-used butterfly shape brace panel and adopt the front floor panel structure of this brace panel |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773210B (en) * | 2015-03-04 | 2017-08-04 | 奇瑞汽车股份有限公司 | A kind of automobile central passage reinforcement structure |
| JP6640278B2 (en) * | 2018-05-25 | 2020-02-05 | 本田技研工業株式会社 | Body structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005119493A (en) * | 2003-10-16 | 2005-05-12 | Honda Motor Co Ltd | Vehicle body structure |
| DE102008063448A1 (en) * | 2008-12-17 | 2010-07-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle structure, has arc-shaped side members angularly guided in longitudinal direction of vehicle and assembled at front and rear free ends that are connected to closed frame unit by cross beam part |
| CN101888945A (en) * | 2007-12-07 | 2010-11-17 | 丰田自动车株式会社 | Car body substructure |
| CN102501905A (en) * | 2011-11-04 | 2012-06-20 | 重庆长安汽车股份有限公司 | Floor beam structure of automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5670246B2 (en) * | 2011-04-07 | 2015-02-18 | 本田技研工業株式会社 | Lower body structure |
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2013
- 2013-01-07 CN CN201310005812.0A patent/CN103448809B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005119493A (en) * | 2003-10-16 | 2005-05-12 | Honda Motor Co Ltd | Vehicle body structure |
| CN101888945A (en) * | 2007-12-07 | 2010-11-17 | 丰田自动车株式会社 | Car body substructure |
| DE102008063448A1 (en) * | 2008-12-17 | 2010-07-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle structure, has arc-shaped side members angularly guided in longitudinal direction of vehicle and assembled at front and rear free ends that are connected to closed frame unit by cross beam part |
| CN102501905A (en) * | 2011-11-04 | 2012-06-20 | 重庆长安汽车股份有限公司 | Floor beam structure of automobile |
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