CN209667217U - A thermoformed body frame structure - Google Patents

Abstract

The utility model discloses a kind of thermoforming car body frame structures, the stiffener assembly being symmetrical set including a pair, stiffener assembly includes: the A column lower reinforcing plate being arranged on A column, B column reinforcement plate on B column is set, front door Crashworthy plate in front door is set, back door Crashworthy plate in back door is set, floor side member under boot is set, stiffening plate in front longitudinal beam in front longitudinal beam is set and is arranged on the floor on preceding floor top and reinforces stringer, one end of A column lower reinforcing plate is connected with A column upper reinforcing plate, the top of B column reinforcement plate is provided with side wall roof side rail stiffening plate, and one end of A column upper reinforcing plate is connect with one end of side wall roof side rail stiffening plate.Thermoforming car body frame structure provided by the utility model, by the reinforcement structure of rational deployment totality body frame, optimizes crew module's Path of Force Transfer, improves structural strength, effectively antagonize in automobile front, biasing, side, rear impact, thermoforming part usage quantity is reduced, production cost is reduced.

Description

A thermoformed body frame structure

technical field

The utility model relates to the technical field of automobile bodies, in particular to a thermoformed body frame structure.

Background technique

At present, with the rapid development of the automobile industry, the number of automobiles per capita is increasing, and the collision safety performance has received extensive attention. The strength and crash performance of the car body is very important. The body frame is the skeleton of the whole car, and the contribution rate of the whole car collision is more than 60%. Therefore, improving the strength of the body-in-white plays a vital role in the crash safety performance.

In car frontal, offset, side, and rear collisions, the amount of foreign object intrusion and body deformation is an important index for evaluating the safety of the car body in the crash test. In order to improve the safety of drivers and passengers in collision accidents and improve the evaluation in crash tests, the usual solution is to apply a large amount of high-strength steel or even hot-formed parts to the stress-bearing parts of the body in order to increase the safety of the entire passenger compartment. strength. In the existing body design, many models use thermoforming technology in large quantities, but the unreasonable structural layout and force transmission path will have disadvantages such as increasing the cost of body materials and increasing the weight of the body, and the anti-collision effect is not obvious.

Utility model content

In order to solve the problems of the prior art, the embodiment of the utility model provides a thermoformed vehicle body frame structure to overcome the structural layout, force transmission Unreasonable paths lead to excessive performance in some areas, high cost, and inconspicuous anti-collision effects.

In order to solve the above-mentioned one or more technical problems, the technical solution adopted in the utility model is:

A thermoformed vehicle body frame structure, comprising a pair of left-right symmetrical reinforcement assemblies, the reinforcement assemblies include: A-pillar lower reinforcement plate 1 disposed on the A-pillar, B-pillar reinforcement plate 2 disposed on the B-pillar, The front door anti-collision plate 3 in the front door, the rear door anti-collision plate 4 arranged in the rear door, the rear longitudinal beam 5 arranged under the trunk, the front longitudinal beam internal reinforcement plate 7 arranged in the front longitudinal beam and the front longitudinal beam arranged in the front On the upper part of the floor, there is a reinforced longitudinal beam 8 on the floor, one end of the A-pillar lower reinforcement plate 1 is connected with an A-pillar upper reinforcement plate 6, and the upper part of the B-pillar reinforcement plate 2 is provided with a side sill reinforcement plate 9, and the One end of the reinforcement plate 6 on the A-pillar is connected to one end of the side beam reinforcement plate 9 on the side wall.

Further, the lower reinforcement plate of the A-pillar is provided with an upper hinge hole of the front door, a lower hinge hole of the front door and a first patch plate, and the first patch plate is arranged between the upper hinge hole of the front door and the lower hinge hole of the front door between.

Further, the B-pillar reinforcement plate is provided with an upper hinge hole of the rear door, a lower hinge hole of the rear door and a second patch plate, and the second patch plate is arranged above the upper hinge hole of the rear door.

Further, the front door anti-collision plate is arranged through the front door from the upper left corner to the lower right corner.

Further, the rear door anti-collision plate is horizontally arranged on the upper part of the rear door.

Further, the rear longitudinal beam includes a high-strength area and a low-strength area, the high-strength area is arranged in the front 3/4 area of the rear longitudinal beam, and the low-strength area is arranged in the rear of the rear longitudinal beam 1/4 area.

Further, a third patch plate is provided on the upper reinforcement plate of the A-pillar, and the third patch plate is provided on a side close to the lower reinforcement plate of the A-pillar.

Further, the inner reinforcing plate of the front longitudinal beam and the reinforcing longitudinal beam on the floor are interlocked to form a box-shaped structure.

Further, the thermoformed body frame structure further includes a door sill side sill reinforcement plate, the two ends of the door sill side sill reinforcement plate are respectively connected with the A-pillar lower reinforcement plate and the B-pillar reinforcement plate, and the sill The side sill reinforcement plate, the A-pillar lower reinforcement plate, the A-pillar upper reinforcement plate, the side wall upper side sill reinforcement plate and the B-pillar reinforcement plate are connected to form a closed ring structure.

Further, the first patch plate is provided with electrophoresis holes and positioning holes.

The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:

1. The thermoformed vehicle body frame structure provided by the embodiment of the utility model can effectively optimize the force transmission path of the passenger compartment and improve the structural strength through the rational layout of the reinforcement structure of the overall body frame, and effectively resist the damage caused by the front, offset, side and rear of the vehicle. Head collision;

2. The thermoformed vehicle body frame structure provided by the embodiment of the present invention can reduce the number of thermoformed parts used and reduce the production cost by rationally arranging the reinforcement structure of the overall vehicle body frame.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a side view of a thermoformed body frame structure according to an exemplary embodiment;

Fig. 2 is a schematic structural view of an A-pillar reinforcement plate assembly and a patch plate according to an exemplary embodiment;

Fig. 3 is a structural schematic diagram of a B-pillar reinforcement plate and a patch plate according to an exemplary embodiment;

Fig. 4 is a schematic structural view of a rear longitudinal beam according to an exemplary embodiment;

Fig. 5 is a structural schematic diagram of the inner reinforcing plate of the front longitudinal beam and the reinforcing longitudinal beam on the floor according to an exemplary embodiment:

Fig. 6 is a schematic diagram showing a partial structure of a thermoformed vehicle body frame structure according to an exemplary embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described implementation Example is only a part of embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present invention, it should be understood that the terms "vertical", "parallel", "central", "longitudinal", "transverse", "upper", "lower", "front", "rear", " The orientation or positional relationship indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, It is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The thermoformed vehicle body frame structure provided by the embodiment of the present invention includes a pair of left and right symmetrical reinforcement components. The reinforcement assembly is composed of a plurality of thermoformed parts. By rationally arranging the thermoformed parts and optimizing the number of thermoformed parts, the reinforcement assembly can not only strengthen the strength of the body frame, but also achieve the effect of controlling the cost of the body. It should be noted here that, in the embodiment of the utility model, the thermoformed parts constituting the reinforcing assembly include two parts arranged on the left side and the right side of the automobile body.

Fig. 1 is a side view of a thermoformed vehicle body frame structure shown according to an exemplary embodiment. Referring to Fig. 1, the reinforcement assembly includes: A-pillar lower reinforcement plate 1, B-pillar reinforcement plate 2, front door anti-collision plate 3, Rear door anti-collision plate 4, rear longitudinal beam 5, A-pillar upper reinforcing plate 6, front longitudinal beam inner reinforcing plate 7, floor reinforcing longitudinal beam 8 and side wall top side beam reinforcing plate 9. Among them, the A-pillar lower reinforcement plate 1 is arranged on the A-pillar, the B-pillar reinforcement plate 2 is arranged on the B-pillar, the front door anti-collision plate 3 is placed in the front door of the automobile, the rear door anti-collision plate 4 is arranged in the rear door, and the rear longitudinal beam 5 It is arranged under the trunk, the inner reinforcing plate 7 of the front longitudinal beam is arranged in the front longitudinal beam, and the reinforcing longitudinal beam 8 on the floor is arranged on the top of the front floor. One end of the reinforcement plate 6 on the A-pillar is connected to one end of the reinforcement plate 1 under the A-pillar, and the other end is connected to one end of the side beam reinforcement plate 9 on the side wall. The inner reinforcing plate 7 of the front longitudinal beam and the reinforcing longitudinal beam 8 on the floor are at the other end of the lower reinforcing plate 1 of the A-pillar (the end away from the upper reinforcing plate 6 of the A-pillar), and the inner reinforcing plate 7 of the front longitudinal beam and the reinforcing longitudinal beam on the floor 8 is not connected to A-pillar lower reinforcement plate 1. The side sill reinforcement plate 9 is arranged on the upper part of the B-pillar reinforcement plate 2, and the A-pillar lower reinforcement plate 1, the A-pillar upper reinforcement plate 6, the side wall upper side sill reinforcement plate 9, and the B-pillar reinforcement plate 2 are sequentially overlapped to form Semi-enclosed ring structure.

The side beam reinforcement plate 9 of the side wall is connected with other components by welding. What needs to be explained here is that the side wall reinforcement plate (that is, the side wall upper side sill reinforcement plate) assembly welded on the side of the car can form a frame structure that effectively resists deformation, and this structure is easy to weld, reducing welding procedures and welding production costs .

As a preferred embodiment, in this embodiment, the A-pillar lower reinforcement plate 1 is provided with the front door upper hinge hole 11a, the front door lower hinge hole 11b and the first patch plate 12, the first patch plate 12 It is arranged between the upper hinge hole 11a of the front door and the lower hinge hole 11b of the front door.

Specifically, Fig. 2 is a structural schematic diagram of an A-pillar reinforcement plate assembly and a patch plate according to an exemplary embodiment. Referring to Fig. 2, the upper hinge hole 11a of the front door is arranged above the lower hinge hole 11b of the front door, and the front door of the automobile The hinge is installed in the upper hinge hole 11a of the front door and the lower hinge hole 11b of the front door, so that the front door of the automobile is connected to the lower reinforcement plate 1 of the A-pillar and the A-pillar. The first patch plate 12 is disposed between the front door upper hinge hole 11a and the front door lower hinge hole 11b. The A-pillar under-reinforcement plate 1 adopts thermoforming patch plate technology, which can locally increase the thickness of the material of the part (that is, the A-pillar under-reinforcement plate 1), and greatly strengthen the strength of the part under the impact force, so as to deal with the impact deformation of the offset impact, so that the A The lower part of the column does not press against the interior of the car.

As a preferred implementation, in this embodiment, the B-pillar reinforcement plate 2 is provided with a rear door upper hinge hole 21a, a rear door upper hinge hole 21b and a second patch plate 22, and the second patch plate 22 is provided with Above the hinge hole 21a on the rear door.

Specifically, Fig. 3 is a structural schematic diagram of a B-pillar reinforcement plate and a patch plate according to an exemplary embodiment. Referring to Fig. 3, the upper hinge hole 21a of the rear door is arranged above the lower hinge hole 21b of the rear door, and the rear door of the automobile is hinged Installed in the upper hinge hole 21a of the rear door and the lower hinge hole 21b of the rear door, so that the rear door of the car is connected to the B-pillar reinforcement plate and the B-pillar. The second patch plate 22 is arranged above the upper hinge hole 21a of the rear door. What needs to be explained here is that adding a piece of patch plate (namely the second patch plate 22) above the hinge hole 21a on the rear door can cope with side impact deformation, and can achieve the effect of no bending in the patch area and energy absorption in the non-patched area.

As a preferred implementation manner, in this embodiment, the front door anti-collision plate 3 is arranged penetratingly from the upper left corner to the lower right corner in the front door.

Specifically, in order to cope with the impact from the side collision, the embodiment of the utility model sets a thermoformed reinforced version (ie, the front door anti-collision plate 3 ) in the front door of the car, thereby ensuring the safety of the drivers and passengers. The front door anti-collision plate 3 is arranged through the front door from the upper left corner to the lower right corner, which is conducive to coping with the impact from side collisions.

As a preferred implementation manner, in this embodiment, the rear door anti-collision plate 4 is arranged laterally on the upper part of the rear door.

Concretely, similarly, in order to cope with the collision impact from the side, the utility model embodiment is provided with thermoformed reinforcing plate (being rear door anti-collision plate 4) in the rear door of the car, thereby guaranteeing the safety of the people in the rear seat of the car. The rear door anti-collision plate 4 is horizontally arranged on the top (glass lip) in the rear door of the automobile, so that it is helpful to deal with the collision impact from the side.

As a preferred implementation mode, in this embodiment, the rear longitudinal beam 5 includes a high-strength zone and a low-strength zone, and the high-strength zone is set in the front 3/4 region of the rear longitudinal beam 5, so The low-strength zone is set in the rear 1/4 area of the rear longitudinal beam 5 .

Specifically, Fig. 4 is a schematic structural view of the rear longitudinal beam according to an exemplary embodiment. Referring to Fig. 4, the body of the rear longitudinal beam 5 adopts a thermoforming process with different strengths, and is designed with soft and hard distinctions. The /4 area is a high-intensity area (51) with an intensity between 1350 and 1500 MPa, and the rear 1/4 area is a low-intensity area (52) with an intensity between 750 and 950 MPa. Setting the rear longitudinal beam 5 into soft and hard partitions is beneficial to play an energy-absorbing role in a rear collision without affecting the safety of the passenger compartment.

As a preferred embodiment, in this embodiment, the A-pillar upper reinforcement plate 6 is provided with a third patch plate 61, and the third patch plate 61 is arranged near the lower reinforcement plate 1 of the A-pillar. side.

Specifically, further referring to FIG. 2, the third patch plate 61 is arranged on the side of the A-pillar upper reinforcement plate 6 close to the A-pillar lower reinforcement plate 1, and the A-pillar upper reinforcement plate 6 also adopts thermoforming patch plate technology, which can Partially increase the thickness of the material of the part (that is, the reinforcing plate 6 on the A-pillar), greatly strengthen the strength of the impact-bearing part, so as to deal with the impact deformation of the offset collision, so that the upper part of the A-pillar is not easy to bend.

As a preferred implementation manner, in this embodiment, the inner reinforcing plate 7 of the front longitudinal beam and the reinforcing longitudinal beam 8) on the floor are interlocked to form a box-shaped structure.

Specifically, Fig. 5 is a structural schematic diagram of the inner reinforcement plate of the front longitudinal beam and the reinforced longitudinal beam on the floor according to an exemplary embodiment. Referring to Fig. 5, the inner reinforcement plate 7 of the front longitudinal beam and the reinforced longitudinal beam 8 on the floor Interlocking with each other to form a box-shaped structure, this setting can have a better strengthening effect.

As a preferred embodiment, in this embodiment, the thermoformed vehicle body frame structure further includes a door sill side sill reinforcement plate 10, and the two ends of the door sill side sill reinforcement plate 10 are connected to the A-pillar lower reinforcement plate respectively. 1 and the B-pillar reinforcement plate 2 are connected, and the door sill side beam reinforcement plate 10, the A-pillar lower reinforcement plate 1, the B-pillar reinforcement plate 2 and the A-pillar upper reinforcement plate 6 are connected to form a closed ring structure.

Specifically, Fig. 6 is a schematic diagram showing part of the structure of the thermoformed body frame structure according to an exemplary embodiment. Referring to Fig. 6, in the embodiment of the present invention, the reinforcing plate 1 under the A-pillar and the B-pillar can also be reinforced An extra section of sill beam made of high-strength steel plate (i.e. sill side beam reinforcement plate 10) is added between the plates 2, so that the sill side beam reinforcement plate 10, the lower reinforcement plate 1 of the A-pillar, the upper reinforcement plate 6 of the A-pillar, and the upper edge of the side wall The beam reinforcement plate 9 and the B-pillar reinforcement plate 2 are connected to form a closed ring structure. The reinforced structure on the side mainly copes with 40% offset collision and side collision.

As a preferred implementation manner, in this embodiment, the first patch plate 12 is provided with electrophoresis holes 121 and positioning holes 122 .

Specifically, further referring to the figure, the first patch plate 12 is provided with electrophoresis holes 121 and positioning holes 122. When welding the reinforcement plate 1 under the A-pillar with other components, the positioning hole 122 can play a positioning role to facilitate welding. In addition, the first patch plate 12 is also provided with a clamping hole 123, which is used for clamping the first patch plate 12 and the internal composite rubber plate.

In summary, the beneficial effects brought by the technical solutions provided by the embodiments of the present invention are:

1. The thermoformed vehicle body frame structure provided by the embodiment of the utility model can effectively optimize the force transmission path of the passenger compartment and improve the structural strength through the rational layout of the reinforcement structure of the overall body frame, and effectively resist the damage caused by the front, offset, side and rear of the vehicle. Head collision;

2. The thermoformed vehicle body frame structure provided by the embodiment of the present invention can reduce the number of thermoformed parts used and reduce the production cost by rationally arranging the reinforcement structure of the overall vehicle body frame.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A thermoformed vehicle body frame structure, characterized in that it comprises a pair of left and right symmetrically arranged reinforcement assemblies, said reinforcement assembly comprising: a reinforcement plate (1) under the A pillar arranged on the A pillar, a reinforcement plate (1) arranged on the B pillar The B-pillar reinforcement plate (2), the front door anti-collision plate (3) set in the front door, the rear door anti-collision plate (4) set in the rear door, the rear longitudinal beam (5) set under the trunk, set in The front longitudinal beam inner reinforcing plate (7) in the front longitudinal beam and the floor reinforcing longitudinal beam (8) arranged on the upper part of the front floor, one end of the A-pillar lower reinforcing plate (1) is connected with the A-pillar upper reinforcing plate ( 6), the upper part of the B-pillar reinforcement plate (2) is provided with a side sill reinforcement plate (9), and one end of the A-pillar upper reinforcement plate (6) is connected to the side sill reinforcement plate (9) ) is connected at one end. 2. The thermoformed vehicle body frame structure according to claim 1, characterized in that, the A-pillar lower reinforcement plate (1) is provided with a front door upper hinge hole (11a), a front door lower hinge hole (11b) and a first A patch plate (12), the first patch plate (12) is arranged between the upper hinge hole (11a) of the front door and the lower hinge hole (11b) of the front door. 3. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that the B-pillar reinforcement plate (2) is provided with an upper hinge hole (21a) for the rear door, a lower hinge hole (21b) for the rear door and a second rear door hinge hole (21b) Two patch plates (22), the second patch plate (22) is arranged above the hinge hole (21a) on the rear door. 4. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that, the front door anti-collision plate (3) is arranged through the front door from the upper left corner to the lower right corner. 5. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that, the rear door anti-collision plate (4) is arranged transversely on the upper part of the rear door. 6. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that, the rear longitudinal beam (5) comprises a high-strength zone and a low-strength zone, and the high-strength zone is arranged on the rear longitudinal beam (5) in the front 3/4 area, the low-strength zone is arranged in the rear 1/4 area of the rear longitudinal beam (5). 7. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that, a third patch plate (61) is arranged on the reinforcement plate (6) on the A-pillar, and the third patch plate (61 ) is arranged on the side close to the lower reinforcement plate (1) of the A-pillar. 8. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that, the inner reinforcing plate (7) of the front longitudinal beam and the reinforcing longitudinal beam (8) on the floor are interlocked to form a box-shaped structure. 9. The thermoformed vehicle body frame structure according to claim 1 or 2, characterized in that, the thermoformed vehicle body frame structure further comprises a door sill side sill reinforcement plate (10), and the door sill side sill reinforcement plate (10) The two ends are respectively connected with the A-pillar lower reinforcement plate (1) and the B-pillar reinforcement plate (2), and the door sill edge beam reinforcement plate (10), the A-pillar lower reinforcement plate (1), the The A-pillar upper reinforcing plate (6), the side wall upper side sill reinforcing plate (9) and the B-pillar reinforcing plate (2) are connected to form a closed ring structure. 10. The thermoformed vehicle body frame structure according to claim 2, characterized in that, the first patch plate (12) is provided with electrophoresis holes (121) and positioning holes (122).