CN214728099U - Vehicle body structure for guaranteeing force transmission path in frontal collision - Google Patents
Vehicle body structure for guaranteeing force transmission path in frontal collision Download PDFInfo
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- CN214728099U CN214728099U CN202120320118.8U CN202120320118U CN214728099U CN 214728099 U CN214728099 U CN 214728099U CN 202120320118 U CN202120320118 U CN 202120320118U CN 214728099 U CN214728099 U CN 214728099U
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Abstract
The utility model discloses a guarantee frontal collision passes automobile body structure in power route, it includes: locate the door anticollision pipe between A post and the B post along automobile body length direction, door hinge reinforcing plate, lock reinforcing plate, A post reinforcing plate, B post reinforcing plate and A post hinge reinforcing plate, in addition, body construction still includes: and the B-pillar retainer is provided with a protruding part and is fixedly connected with the B-pillar reinforcing plate. The front end and the rear end of the vehicle door anti-collision pipe in the length direction are respectively provided with a convex part which extends outwards along the axial direction; holes are formed in the vehicle door hinge reinforcing plate and the vehicle lock reinforcing plate, and puncture holes matched with the protruding portion at the front end of the vehicle door anti-collision tube are formed in the A column reinforcing plate; in the collision process, the protruding part at the front end of the vehicle door anti-collision tube penetrates through the vehicle door hinge reinforcing plate and is inserted into the puncture hole, so that the front end of the vehicle door anti-collision tube is limited, the protruding part at the rear end of the vehicle door anti-collision tube penetrates through the vehicle lock reinforcing plate, and the protruding part limits the rear end of the vehicle door anti-collision tube in the width direction of a vehicle.
Description
Technical Field
The utility model relates to a body structure especially relates to a guarantee frontal collision passes body structure in power route.
Background
At present, when automobile enterprises design and produce vehicles, how passenger cars meet the requirements of front collision working conditions is always a difficult point and a key point for developing automobile body structures. The door anticollision pipe is one of the effective measures in the frontal collision solution, and it can play the effect of transferring upper portion load from A post to B post, and reasonable biography power route and assurance anticollision pipe are the key place that the collision result is successful at the stability of collision in-process.
However, with the increasing popularity of electric vehicles in recent years, more and more users choose to drive electric vehicles to participate in traffic. Compared with a traditional oil vehicle, the electric vehicle has larger weight and initial kinetic energy, and when the electric vehicle is in frontal collision, the risk of failure of the anti-collision pipe is also larger.
In a frontal collision, the crash tube of an existing vehicle model usually has several major failure risks:
(1) the self rigidity of the anti-collision pipe is insufficient, and buckling and bending are easy to occur;
(2) the support parts at the two ends are unreasonable in design, and the vehicle door anti-collision pipe is easy to slide out from the end of the A column or the B column after being stressed;
(3) the supporting area or the material strength of the bearing part at the supporting end of the A column or the B column of the vehicle is insufficient, and the anti-collision tube can pierce all the parts at the supporting end to weaken the bearing effect.
All of the above factors affect the force transmission effect of the vehicle in the frontal collision, so that the passenger compartment is easily extruded and deformed too much after the collision, and the passenger safety space is affected.
Based on this, to the defect among the prior art, the utility model discloses expect to obtain a guarantee front collision and pass the body construction in power route, this body construction can guarantee front collision's biography power route, realizes power from last longeron to A post, to door anticollision pipe, arrives the effective transmission of B post again to effectively avoid influencing the problem in passenger's safety space because of passing power improper passenger cabin extrusion deformation that leads to too big.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a guarantee frontal collision passes the body structure in power route, this body structure can guarantee the power route of passing of frontal collision, realizes power from the last longeron to the A post, to door anticollision pipe, arrives the effective transmission of B post again. Adopt this body structure can guarantee that door anticollision pipe is not slipped out at the collision in-process, and the buckling is buckled and is impaled the problem of other support end parts of vehicle, and it can realize the stable transmission of power to effectively avoid influencing the problem in passenger cabin extrusion deformation too big that passenger safety space was influenced because of passing power improper.
In order to achieve the above object, the utility model provides a guarantee frontal collision passes automobile body structure in power route, it includes: the vehicle door anti-collision device comprises a vehicle door anti-collision pipe, a vehicle door hinge reinforcing plate, a vehicle lock reinforcing plate, an A-column reinforcing plate, a B-column reinforcing plate and an A-column hinge reinforcing plate, wherein the vehicle door anti-collision pipe is arranged between the A-column and the B-column along the length direction of a vehicle body; the vehicle body structure further includes:
the B-pillar retainer is fixedly connected with the B-pillar reinforcing plate and is provided with a protruding part;
the front end and the rear end of the vehicle door anti-collision pipe in the length direction are respectively provided with a convex part extending outwards along the axial direction;
holes are formed in the vehicle door hinge reinforcing plate and the vehicle lock reinforcing plate, and puncture holes matched with the protruding portions at the front ends of the vehicle door anti-collision tubes are formed in the A-column reinforcing plate;
in the collision process, the protruding part at the front end of the vehicle door anti-collision tube penetrates through the vehicle door hinge reinforcing plate and is inserted into the puncture hole, the puncture hole limits the front end of the vehicle door anti-collision tube in the Y direction, the protruding part at the rear end of the vehicle door anti-collision tube penetrates through the vehicle lock reinforcing plate, and the protruding part limits the rear end of the vehicle door anti-collision tube in the Y direction; the Y direction is directed in the width direction of the vehicle.
In the above technical solution of the utility model, except that the known door anticollision pipe of locating between A post and the B post among the prior art, door hinge reinforcing plate, lock reinforcing plate, A post reinforcing plate, B post reinforcing plate and A post hinge reinforcing plate, the inventor has still designed a B post holder that has the protruding portion.
In order to avoid carrying out corresponding regulation to door anticollision pipe and body construction from vehicle A post or B post end roll-off behind the door anticollision pipe atress. The front end and the rear end of the door anti-collision tube in the length direction are provided with the protruding portions, the door hinge reinforcing plate and the lock reinforcing plate are provided with holes corresponding to the front end and the rear end of the door anti-collision tube, so that the door anti-collision tube can firstly penetrate through the door hinge reinforcing plate and the lock reinforcing plate according to a specified path, and then the protruding portions penetrate through the door inner plate. Meanwhile, the A-column reinforcing plate is provided with a puncture hole matched with the protruding part at the front end of the vehicle door anti-collision tube, so that the front end of the vehicle door anti-collision tube can be inserted into the puncture hole in the collision process; correspondingly, a B-pillar retainer is added in the rear-end B-pillar area of the door anti-collision tube to form a limiting structure for preventing the door anti-collision tube Y from sliding out, and in order to provide a larger supporting area for the door anti-collision tube, the risk of sliding out is further reduced.
Therefore, the utility model discloses in, through the rational design to body structure, not only can avoid the vehicle to manage the problem of roll-off behind the atress at the door anticollision that the collision in-process probably appears, can also effectively avoid door anticollision pipe to take place the bucking to buckle at the collision in-process, prevent that door anticollision pipe from impaling B post holder and A post hinge reinforcing plate.
Further, in the vehicle body structure of the present invention, a groove is formed in a middle portion of the protruding portion.
Further, in the vehicle body structure of the present invention, the height of the projection is 2 to 5 mm.
Further, in the vehicle body structure of the present invention, the depth of the groove is 2 to 3 mm.
Further, in the vehicle body structure of the present invention, the outer wall of the door anti-collision tube is welded and/or bonded to the inner door panel and the door frame of the vehicle.
Further, in the vehicle body structure of the present invention, the draft angle α of the region corresponding to the door pillar stiffener is not greater than 6 °.
Further, in the vehicle body structure of the present invention, the draft angle β of the region corresponding to the door anti-collision tube on the B-pillar stiffener is not greater than 6 °.
In the technical scheme, on the premise that the process is feasible, the draft angles alpha and beta of the area, corresponding to the vehicle door anti-collision tube, on the A/B column reinforcing plate are reduced as much as possible, so that the risk that the vehicle door anti-collision tube slips out of the end of the vehicle A column or the B column after being stressed in collision is further reduced. Therefore, in the present invention, the draft angle α can be preferably controlled to 6 ° or less, and the draft angle β can be preferably controlled to 6 ° or less.
Further, in the vehicle body structure of the present invention, the yield strength of the sheet material for making the B-pillar retainer is 330-.
Further, in the vehicle body structure of the present invention, the yield strength of the plate for manufacturing the a-pillar hinge reinforcing plate is 330-.
In the technical scheme, the mechanical property and the thickness of the plates of the B-column retaining piece and the A-column hinge reinforcing plate can be controlled to ensure the strength of the B-column retaining piece and the A-column hinge reinforcing plate, so that the B-column retaining piece and the A-column hinge reinforcing plate are prevented from being pierced by the vehicle door anti-collision tube.
Further, in the vehicle body structure of the present invention, the fall b of the a-pillar hinge reinforcing plate and the door anti-collision tube in the Y direction is not less than 10 mm.
Guarantee head-on collision pass the automobile body structure in power route have following advantage and beneficial effect:
compared with the prior art, the vehicle body structure of guarantee head-on collision biography power route can guarantee head-on collision's biography power route, realize power from the last longeron to A post, to door anticollision pipe, the effective transmission to the B post again.
The utility model discloses in, through the rational design to body structure, not only can avoid the problem of roll-off behind the door anticollision pipe atress that the vehicle probably appears in the collision process, can also effectively avoid door anticollision pipe buckling and impale the problem that other supports the end part of vehicle appear in the collision process, it can realize the stable transmission of power to effectively avoid too big because of passing the passenger cabin extrusion deformation that the power is improper leads to, influence passenger safety space's problem.
Drawings
Fig. 1 is a structural overview of a vehicle body structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of an assembly structure of a B-pillar retainer and a B-pillar reinforcement plate according to an embodiment of the present invention.
Fig. 3 is a sectional view of an assembly structure of the B-pillar holder and the B-pillar reinforcement plate shown in fig. 2.
Fig. 4 is a schematic cross-sectional view of an a-pillar hinge reinforcement plate and a door crash tube structure of a vehicle body structure according to an embodiment of the present invention.
Fig. 5 schematically shows a view of the structure of the door crash tube end of a vehicle body structure according to an embodiment of the invention.
Fig. 6 is a partial structural schematic diagram of a front end of a door pillar and an a pillar region of a vehicle according to an embodiment of the present invention.
Fig. 7 is a schematic view of a part of the structure of the rear end of the door pillar and the B-pillar area of the vehicle body structure according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of an a-pillar stiffener according to an embodiment of the present invention.
Fig. 9 is a schematic view of the connection between the door crash tube and the door frame part and the door inner panel of the body structure of the present invention in one embodiment.
Fig. 10 is a schematic diagram of a draft angle of an area corresponding to an a-pillar stiffener and a door crash tube according to an embodiment of the present invention.
Fig. 11 is a schematic diagram of a B-pillar reinforcement plate and a corresponding region draft angle of a door anti-collision tube of a vehicle body structure according to an embodiment of the present invention.
Detailed Description
The body structure for ensuring the force transmission path in a frontal collision according to the present invention will be further explained and illustrated with reference to the drawings and the specific embodiments, however, the explanation and illustration are not intended to be construed as an undue limitation on the technical solution of the present invention.
Fig. 1 is a structural overview of a vehicle body structure according to an embodiment of the present invention.
As shown in FIG. 1, when the vehicle had a frontal collision, the body structure of the utility model can ensure the force transmission path of the frontal collision, realize the effective transmission of the force from the upper longitudinal beam 1 to the A post, and then the B post is transmitted again through the door anti-collision tube 6. The door anti-collision tube 6 is arranged in a door and window area between the A column and the B column, so that force is transmitted in a controlled mode according to a specified path.
In order to ensure the controlled transmission of the force when the vehicle has a frontal collision according to a specified path, in the present embodiment, the vehicle body structure of the present invention may include: the automobile door structure comprises an A-pillar reinforcing plate 2, a B-pillar reinforcing plate 3, a lock reinforcing plate 5, a door anti-collision tube 6, a door hinge reinforcing plate 9 and an A-pillar hinge reinforcing plate 10 which are arranged between an A-pillar and a B-pillar along the length direction of an automobile body.
Further, in the present embodiment, the inventor has also designed the B-pillar retainer 4 in the vehicle body structure, and a specific structure of the B-pillar retainer 4 may be as shown in fig. 2.
Fig. 2 is a schematic view of an assembly structure of a B-pillar retainer and a B-pillar reinforcement plate according to an embodiment of the present invention.
Fig. 3 is a sectional view of the B-pillar retainer and B-pillar reinforcement plate assembly structure shown in fig. 2.
As shown in fig. 2 and 3, in the present embodiment, the rear end of the door impact tube 6 in the longitudinal direction is close to the B-pillar retainer 4. Wherein, B post holder 4 and B post reinforcing plate 3 can adopt spot welding mode to realize fixed connection, can form a protruding cavity when B post holder 4 and B post reinforcing plate 3 fixed connection, have the protruding portion promptly, and its protruding characteristic height h can be greater than 3 mm.
When a vehicle collides, the door impact tube 6 is blocked by the protruding part of the B-pillar retainer 4 in the width direction of the vehicle after being stressed, so that the door impact tube 6 is ensured not to slide outwards.
In this embodiment, the yield strength of the plate of the B-pillar retainer 4 may be 330-430MPa, the tensile strength may be 590-700MPa, and the thickness of the plate may be 1.5-2 mm.
Fig. 4 is a schematic cross-sectional view of an a-pillar hinge reinforcement plate and a door crash tube structure of a vehicle body structure according to an embodiment of the present invention.
As shown in FIG. 4, in the present embodiment, the front end of the door impact tube 6 in the length direction is close to the A-pillar hinge reinforcing plate 10, the yield strength of the plate of the A-pillar hinge reinforcing plate 10 can be 330-. Wherein, the fall b of the A-pillar hinge reinforcing plate 10 and the door anti-collision tube 6 in the width direction of the vehicle, namely the Y direction is more than or equal to 10 mm.
It should be noted that, in the present embodiment, the design is performed to ensure the coverage area and the material strength of the a-pillar hinge reinforcement plate 10 and prevent the door pillar impact tube 6 from penetrating the a-pillar hinge reinforcement plate 10.
Fig. 5 shows schematically a view of the structure of the door impact tube end of the body structure according to one embodiment of the invention.
As shown in fig. 5, in the present embodiment, the front end and the rear end of the door impact tube 6 in the vehicle body structure in the longitudinal direction may have a protruding portion 61 protruding outward in the axial direction, respectively. The height of the convex part can be 2-5mm, the middle part of the convex part is provided with a concave groove 611, and the depth of the concave groove 611 can be 2-3 mm.
Fig. 6 is a partial structural schematic diagram of a front end of a door pillar and an a pillar region of a vehicle according to an embodiment of the present invention.
Fig. 7 is a schematic view of a part of the structure of the rear end of the door pillar and the B-pillar area of the vehicle body structure according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of an a-pillar stiffener according to an embodiment of the present invention.
As shown in fig. 6 and 7, in the present embodiment, the door hinge reinforcing plate 9 and the lock reinforcing plate 5 are each provided with a hole 91 and a hole 51, respectively. Wherein the dimensions of the hole 91 and the hole 51 may be slightly larger than the cross-sectional dimensions of the door impact tube 6 to guide the door impact tube 6 through the door hinge reinforcement plate 9 and the lock reinforcement plate 5 in a planned path.
Meanwhile, as shown in fig. 8, in the present embodiment, the a-pillar stiffener 2 of the present invention is provided with a piercing hole 21 adapted to the protruding portion 61 at the front end of the door pillar 6.
In the collision process, the protruding portion 61 at the front end of the door impact tube 6 can penetrate through the door hinge reinforcing plate 9 and be inserted into the puncture hole 21 formed in the a-pillar reinforcing plate 2, and at this time, the puncture hole 21 can limit the front end of the door impact tube 6 in the width direction of the vehicle, that is, the Y direction.
Accordingly, during a collision, the protruding portion 61 at the rear end of the door pillar 6 may pass through the lock reinforcement plate 5, and at this time, the protruding portion on the B pillar retainer 4 fixedly connected to the B pillar reinforcement plate 3 may limit the rear end of the door pillar 6 in the Y direction. From this, can guarantee body construction's biography power route is inefficacy.
Furthermore, it should be noted that the B-pillar retainer 4 may also provide a greater support area for the door pillar 6, thereby further reducing the risk of the door pillar 6 and thus the B-pillar region of the vehicle slipping out.
Fig. 9 is a schematic view of the connection between the door crash tube and the door frame part and the door inner panel of the body structure of the present invention in one embodiment.
As shown in fig. 9, with reference to fig. 1, in the present embodiment, a door impact tube 6 in a vehicle body structure according to the present invention may be connected to a door frame member 7 and a door inner panel 8 at a and b shown in fig. 9, respectively.
It should be noted that, the door crash tube 6 in the vehicle body structure may be welded and/or glued to the door frame part 7 and the door inner panel 8. The connection mode can ensure that the vehicle anti-collision pipe can be punctured out of the inner door panel 8 in the vehicle collision process and is not bent, thereby ensuring that a force transmission path is not failed.
Fig. 10 is a schematic diagram of a draft angle of an area corresponding to an a-pillar stiffener and a door crash tube according to an embodiment of the present invention.
Fig. 11 is a schematic diagram of a B-pillar reinforcement plate and a corresponding region draft angle of a door anti-collision tube of a vehicle body structure according to an embodiment of the present invention.
As shown in fig. 10 and 11, in the vehicle body structure of the present invention, the region corresponding to the door pillar is further provided with a draft angle α on the a-pillar stiffener, and the region corresponding to the door pillar stiffener is further provided with a draft angle β on the B-pillar stiffener.
It should be noted that, in the present embodiment, the draft angle α may be controlled to be equal to or less than 6 °, and the draft angle β may be controlled to be equal to or less than 6 °, so as to further reduce the risk that the door impact protection pipe 6 slips out of the two ends of the a pillar or B pillar area of the vehicle after being subjected to a force during a vehicle collision.
To sum up, can see, compare in prior art, guarantee frontal collision pass the automobile body structure in power route and can guarantee frontal collision's biography power route, realize power from last longeron to A post, to door anticollision pipe, to the effective transmission of B post again.
The utility model discloses in, through the rational design to body structure, not only can avoid the problem of roll-off behind the door anticollision pipe atress that the vehicle probably appears in the collision process, can also effectively avoid door anticollision pipe buckling and impale the problem that other supports the end part of vehicle appear in the collision process, it can realize the stable transmission of power to effectively avoid too big because of passing the passenger cabin extrusion deformation that the power is improper leads to, influence passenger safety space's problem.
It should be noted that the prior art in the protection scope of the present invention is not limited to the embodiments given in the present application, and all the prior art which is not contradictory to the solution of the present invention, including but not limited to the prior patent documents, the prior publications, and the like, can be incorporated into the protection scope of the present invention.
In addition, the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradictory to each other.
It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is obvious that the present invention is not limited to the above embodiments, and similar changes or modifications can be directly derived or easily suggested by those skilled in the art from the disclosure of the present invention, and all should fall within the protection scope of the present invention.
Claims (10)
1. A vehicle body structure that secures a force transmission path in a frontal collision, comprising: the vehicle door anti-collision device comprises a vehicle door anti-collision pipe, a vehicle door hinge reinforcing plate, a vehicle lock reinforcing plate, an A-column reinforcing plate, a B-column reinforcing plate and an A-column hinge reinforcing plate, wherein the vehicle door anti-collision pipe is arranged between the A-column and the B-column along the length direction of a vehicle body; characterized in that, the vehicle body structure still includes:
the B-pillar retainer is fixedly connected with the B-pillar reinforcing plate and is provided with a protruding part;
the front end and the rear end of the vehicle door anti-collision pipe in the length direction are respectively provided with a convex part extending outwards along the axial direction;
holes are formed in the vehicle door hinge reinforcing plate and the vehicle lock reinforcing plate, and puncture holes matched with the protruding portions at the front ends of the vehicle door anti-collision tubes are formed in the A-column reinforcing plate;
in the collision process, the protruding part at the front end of the vehicle door anti-collision tube penetrates through the vehicle door hinge reinforcing plate and is inserted into the puncture hole, the puncture hole limits the front end of the vehicle door anti-collision tube in the Y direction, the protruding part at the rear end of the vehicle door anti-collision tube penetrates through the vehicle lock reinforcing plate, and the protruding part limits the rear end of the vehicle door anti-collision tube in the Y direction; the Y direction is directed in the width direction of the vehicle.
2. The vehicle body structure of claim 1, wherein a center portion of the boss has a recess.
3. The vehicle body structure according to claim 1, wherein the convex height of the convex portion is 2 to 5 mm.
4. The vehicle body structure according to claim 2, wherein the depth of the groove is 2-3 mm.
5. The vehicle body structure of claim 1, wherein the outer wall of the door impact tube is welded and/or glued to a door inner panel and a door frame component of the vehicle.
6. The vehicle body structure according to claim 1, wherein a draft angle α of a region of the a-pillar reinforcement plate corresponding to the door pillar is 6 ° or less.
7. The vehicle body structure according to claim 1, wherein a draft angle β of a region of the B-pillar reinforcement plate corresponding to the door pillar is 6 ° or less.
8. The vehicle body structure according to claim 1, wherein the yield strength of the sheet material from which the B-pillar retainer is made is 330-430MPa, the tensile strength is 590-700MPa, and the thickness of the sheet material is 1.5-2 mm.
9. The vehicle body structure of claim 1, wherein the yield strength of the sheet material for manufacturing the A-pillar hinge reinforcing plate is 330-430MPa, the tensile strength is 590-700MPa, and the thickness of the sheet material is more than or equal to 1.5 mm.
10. The vehicle body structure according to claim 1, wherein the fall b of the A-pillar hinge reinforcement plate and the door impact tube in the Y direction is 10mm or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120320118.8U CN214728099U (en) | 2021-02-04 | 2021-02-04 | Vehicle body structure for guaranteeing force transmission path in frontal collision |
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| CN202120320118.8U CN214728099U (en) | 2021-02-04 | 2021-02-04 | Vehicle body structure for guaranteeing force transmission path in frontal collision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103608A (en) * | 2021-11-22 | 2022-03-01 | 岚图汽车科技有限公司 | Car door anti-collision structure |
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2021
- 2021-02-04 CN CN202120320118.8U patent/CN214728099U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103608A (en) * | 2021-11-22 | 2022-03-01 | 岚图汽车科技有限公司 | Car door anti-collision structure |
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