WO2022109799A1

WO2022109799A1 - Roof structure

Info

Publication number: WO2022109799A1
Application number: PCT/CN2020/131200
Authority: WO
Inventors: 佟林; 傅强; 宋永乐; 陈晓磊
Original assignee: 智马达汽车有限公司
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2022-06-02
Also published as: CN116529102A

Abstract

A roof structure. The roof structure comprises front windshield glass (23), a front roof trim panel (22), a roof outer panel (21), and a roof front crossbeam (24); the front windshield glass (23) is provided with a first side and a second side opposite to the first side; the first side of the front windshield glass (23) is connected to the front roof trim panel (22); the second side of the front windshield glass (23) is connected to the roof outer panel (21); the front roof trim panel (22) is connected to the roof outer panel (21); the roof outer panel (21) is connected to the roof front crossbeam (24). The roof structure meets requirements for top-front view and appearance, and allows for improvement of the subjective feeling of a driver; the rigidity and mode of the roof front crossbeam (24) are ensured; foam and sealing rubber strips are used for the front roof trim panel (22), the foam ring has sufficient lap space, it is ensured that the opening area is a dry area, and the sealing performance of the whole vehicle is ensured.

Description

a roof structure

technical field

The invention relates to the field of vehicle structures, in particular to a roof structure.

Background technique

In the process of automobile design, the driver's subjective feeling is particularly important. Both ergonomics and appearance shape affect the driver's feeling of automobile products, and it is necessary to meet the dual requirements of front view and modeling characteristics. As an important indicator in ergonomics, the front view affects the driver's subjective feeling and lookout safety; too small front view angle will give the driver a sense of depression, and the front view is not wide, which affects the lookout and observation. to safety hazards.

As shown in FIG. 1 and FIG. 2 , in the traditional automobile design, the front windshield 12 and the sheet metal top cover 11 are directly matched with each other through the glue 13, which is used in most automobile design and production; For models with a "Flying roof" (suspended roof) structure at the front end of the roof, the front and upper field of view cannot meet the ergonomics very well.

Therefore, it is necessary to provide a roof structure, which can not only realize the shape of the floating roof, but also meet the requirements of ergonomic front view and the requirements of structural performance.

SUMMARY OF THE INVENTION

In order to solve the problem in the prior art that the shape of the floating roof cannot be realized without meeting the requirement of ergonomic front view, the present invention proposes a roof structure, which is specifically realized by the following technical solutions.

A roof structure provided by the present invention includes a front windshield glass, a front roof trim panel, a roof outer panel and a roof front beam, and the front windshield glass is provided with a first side and a second side opposite to the first side. side, the first side of the front windshield glass is connected to the front roof trim panel, the second side of the front windshield glass is connected to the top cover outer panel, and the front roof trim panel is connected to the top cover outer panel. The top cover outer plate is connected with the top cover front beam.

A further improvement of the roof structure provided by the present invention is that the roof outer plate is welded with the roof front beam.

A further improvement of the roof structure provided by the present invention is that the front beam of the roof is provided with reinforcing ribs.

A further improvement of the roof structure provided by the present invention is that the roof front beam is provided with a first end and a second end opposite to the first end;

The top cover outer plate is provided with a first plate body, a second plate body and a third plate body, the second plate body is arranged between the first plate body and the third plate body, and the third plate body is provided. A plate body is respectively connected to the second side of the front windshield glass and the first end of the front roof beam, and the second plate body is respectively connected to the second end of the roof front beam and the front roof The trim panel is connected, and the third panel body is arranged on the surface of the vehicle body.

A further improvement of the roof structure provided by the present invention is that the third plate body is provided with a first flange that is bent in a direction away from the front roof trim panel, and the second plate body is connected to the first flange. Flange connection.

A further improvement of the top cover structure provided by the present invention is that the second end of the top cover front beam is connected to the side of the second plate body close to the first flange.

A further improvement of the top cover structure provided by the present invention is that the second plate body is provided with a second flange that is bent in a direction away from the front ceiling trim panel, and the first plate body and the second Flange connection.

A further improvement of the top cover structure provided by the present invention is that the second plate body is provided with an opening area, the opening area is provided with a mounting hole, the front ceiling trim panel is provided with a buckle, and the buckle is clamped in the mounting hole.

A further improvement of the top cover structure provided by the present invention is that the opening area is further provided with a positioning hole, and the front roof trim panel is further provided with a positioning pin, and the positioning pin is arranged in the positioning hole.

A further improvement of the top cover structure provided by the present invention is that it further includes a foam ring, the foam ring is arranged between the top cover outer plate and the second plate body, and the foam ring surrounds the Aperture area settings.

A further improvement of the top cover structure provided by the present invention is that the angle of the first flange is 15°, and the fillet radius of the first flange is 2 mm.

A further improvement of the top cover structure provided by the present invention is that the second plate body is provided with a third flange, and the third flange is arranged around the mounting hole or around the positioning hole.

A further improvement of the top cover structure provided by the present invention is that the angle of the draft angle of the third flange is 150°, and the fillet radius of the third flange is 8 mm.

A further improvement of the top cover structure provided by the present invention is that the appearance surface of the top cover outer plate is formed by one-step stamping.

Compared with the prior art, the present invention can meet the requirements of front and upper visual field and appearance modeling, and improve the driver's subjective experience; characteristic ribs are added to the front beam of the roof, and the expansion glue connection is optimized as spot welding and direct welding of the outer plate of the roof. Ensure the rigidity and mode of the front beam of the top cover; the second plate body is used as a plate body with flat features, and the front ceiling trim panel uses foam and sealing tape, and the foam ring has enough overlap space to ensure the opening area. In order to ensure the sealing performance of the whole vehicle for the dry area; under the premise of meeting the installation space of the front roof trim panel, increase the draft angle of the first flange and the third flange and optimize the size of the fillet feature, so as to ensure the quality of the A side as much as possible. Meet the requirements of one-time stamping and avoid complicated processes such as side shaping to increase costs.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the connection structure of the front windshield glass and the outer panel of the top cover in the prior art.

FIG. 2 is a schematic cross-sectional view of A-A in FIG. 1 .

FIG. 3 is a schematic diagram of the connection structure of the connection between the front beam of the roof and the outer panel of the roof through expansion glue in the prior art.

FIG. 4 is a schematic cross-sectional view of B-B in FIG. 3 .

FIG. 5 is a schematic diagram of the connection structure between the front ceiling trim panel, the front windshield glass and the outer panel of the top cover in the embodiment of the present invention.

FIG. 6 is a schematic diagram of a connection structure of a top cover structure according to an embodiment of the present invention.

7 is a schematic top view of the front beam of the top cover in the embodiment of the present invention.

FIG. 8 is a schematic structural diagram of the top cover front beam and the top cover outer panel in FIG. 7 .

FIG. 9 is a schematic structural diagram of the reinforcing rib in FIG. 8 .

FIG. 10 is a schematic structural diagram of an outer panel of a top cover in an embodiment of the present invention.

FIG. 11 is a schematic cross-sectional view of C-C in FIG. 10 .

FIG. 12 is a schematic view of the structure of the foam ring in FIG. 10 arranged around the opening area.

FIG. 13 is a schematic cross-sectional view of D-D in FIG. 12 .

FIG. 14 is a schematic structural diagram of a third flange.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

5 to 14 , the top cover structure in this embodiment includes a front windshield glass 23 , a front top trim panel 22 , a top cover outer panel 21 and a top cover front beam 24 , and the front windshield glass 23 is provided with a first side and the second side opposite to the first side, the first side of the front windshield glass 23 is connected to the front roof trim panel 22, the second side of the front windshield glass 23 is connected to the top cover outer panel 21, and the front roof trim panel 22 is connected to the roof trim panel 22. The cover outer plate 21 is connected, and the top cover outer plate 21 is connected with the top cover front beam 24 . An interior ceiling 27 is provided below the roof front beam 24 . The interior ceiling 27 is a kind of interior parts. In addition to improving the interior decoration, the interior ceiling 27 can also play the role of sound insulation, sound absorption and heat insulation.

In this embodiment, the front roof trim panel 22 is provided and connected with the front windshield glass 23 and the roof outer panel 21 respectively, which can solve the problems of the front upper view and appearance. While realizing the design concept of the floating roof, the Meet the needs of ergonomic front view.

The shape of the floating roof is to separate the roof from the body area by design or color matching of the pillars, giving people a visual error of separation of the roof and the body. The floating roof design can bring special visual effects. Disconnect the longitudinal continuity of the color of the body body so that the visual height of the whole vehicle is lower than the actual height. The combination of black trims and side windows can form a more distinctive main feature of the side panel, which is highly recognizable, and can also visually make the entire cockpit feel that the rear can enhance the sense of movement.

1 and 2 , the roof structure in the prior art includes a front windshield glass 12 and a roof outer panel 11 , and a floating roof cannot be provided under the condition that the ergonomic front view requirements are met. However, in this embodiment, the front roof trim panel 22 is added to form a shape of a floating roof through the front roof trim panel 22 under the condition that the ergonomic front view requirements are met, and the appearance is more beautiful. Compared with a vehicle model without a front roof trim panel, the present embodiment can also meet the same level of ergonomic front and upper field of vision requirements.

Further, the roof outer plate 21 is welded with the roof front beam 24 . In this embodiment, the front roof trim panel 22 is adhered to the first side of the front windshield glass 23 by the adhesive tape 28 in the assembly workshop, and the second side of the front windshield glass 23 is adhered to the outer panel of the top cover by the glass glue 25 in the assembly workshop 21. The top cover outer plate 21 and the top cover front beam 24 are connected by welding. 3 and 4, in the prior art, the top cover outer panel 11 and the top cover front beam 14 are connected by using expansion glue 15; the expansion glue is a special expansion tape and film for automobiles with synthetic rubber and resin as the base material. . Compared with the connection method using expansion glue in the prior art, the present embodiment is connected by welding, which can make the structure more stable and the overall performance better, and ensure the NVH performance of the front beam 24 of the top cover. The installation of the front headliner 22 does not affect the structure, stiffness and NVH performance of the headliner front cross member 24 .

Further, the front cross beam 24 of the top cover is provided with a reinforcing rib 242 . The stiffening ribs 242 provided in this embodiment can further improve the rigidity of the front beam 24 of the top cover and make the structure more stable. The shape of the reinforcing rib 242 is not limited, as long as it can enhance the rigidity of the front cross beam 24 of the roof.

Further, the top cover front beam 24 is provided with a first end and a second end opposite to the first end; the top cover outer plate 21 is provided with a first plate body 51, a second plate body 52 and a third plate body 53, The second plate body 52 is arranged between the first plate body 51 and the third plate body 53. The first plate body 51 is respectively connected with the second side of the front windshield glass 23 and the first end of the front cross member 24 of the roof cover. The body 52 is respectively connected with the second end of the roof front cross member 24 and the front roof trim panel 22 , and the third plate body 53 is provided on the surface of the vehicle body. The shape and structure of the top cover outer panel 21 in this embodiment are adapted to the installation requirements of the front ceiling trim panel 22, so that the front ceiling trim panel 22 is stably and firmly installed in place, and the overall structural stability is ensured.

In this embodiment, the front windshield 23 can be covered on the first panel 51 , the front roof trim panel 22 can be covered on the second panel 52 , and the third panel 53 can be directly exposed and located on the vehicle body surface. In this embodiment, the first plate body 51 is bonded to the second side of the front windshield glass 23 by the glass glue 25 , the second plate body 52 is welded to the second end of the front beam 24 of the top cover, and the second plate body 52 The board body 52 and the front roof trim panel 22 can be connected by the clips 26 .

Furthermore, the third plate body 53 is provided with a first flange 501 bent in a direction away from the front roof trim panel 22 , and the second plate body 52 is connected with the first flange 501 . In this embodiment, in order to adapt to the installation structure of the front roof trim panel 22, a first flange 501 is provided, and the first flange 501 is bent in the direction of the vehicle interior, so that the second plate body 52 is lower than the first flange 501. The three-plate body 53 provides installation space for the front ceiling trim panel 22 . The outward bulge of the front roof trim panel 22 is avoided, so that the overall roof structure can maintain a very smooth curve shape, reducing the air resistance during driving; the appearance is more beautiful and attractive.

Furthermore, the second end of the front cross beam 24 of the top cover is connected to the side of the second plate body 52 close to the first flange 501 . Specifically, the two are connected by welding, and the distribution positions of the welding points 241 are shown in FIG. 8 . The reinforcing rib 242 is arranged near the welding point 241 . The welding points 241 are evenly arranged on the second end of the front beam 24 of the top cover. The number of solder joints 241 is determined according to actual requirements. Compared with the prior art, the present embodiment is connected by welding, which can make the structure more stable and the overall performance better, and ensure the NVH performance of the front beam 24 of the top cover.

Furthermore, the second plate body 52 is provided with a second flange 502 bent in a direction away from the front roof trim panel 22 , and the first plate body 51 is connected with the second flange 502 . In this embodiment, the second flange 502 is provided, so that the first plate body 51 is formed by the bent second flange 502, which provides an installation space for the front windshield glass 23, and the front windshield glass 23 can be arranged on the first plate body 51 and the front windshield glass 23. Between the front ceiling trim panels 22, the structure is compact and stable.

Furthermore, the second plate body 52 is provided with an opening area, the opening area is provided with a mounting hole 211 , and the front roof trim panel 22 is provided with a buckle 26 , and the buckle 26 is clamped in the installation hole 211 . In this embodiment, the second plate body 52 and the front roof trim panel 22 are connected by the clips 26 , and the clips 26 of the front roof trim panel 22 are directly clipped in the installation holes 211 of the second plate body 52 , thereby realizing The snap connection between the front ceiling trim panel 22 and the second panel body 52 is simple, firm and reliable by using the snap button 26 to connect.

Furthermore, the opening area is further provided with a positioning hole 212 , the front roof trim panel 22 is further provided with a positioning pin, and the positioning pin is arranged in the positioning hole 212 . In this embodiment, the positioning pins can play a positioning role. When installing the front roof trim panel 22, first install the positioning pins into the positioning holes 212, so as to ensure that the installation position of the front roof trim panel 22 is correct. The position of the positioning pin is set opposite to the position of the positioning hole 212 to ensure that the installation position between the front roof trim panel 22 and the top cover outer panel 21 is accurate when the positioning pin is inserted into the positioning hole 212 .

Further, it also includes a foam ring 213, the foam ring 213 is arranged between the top cover outer plate 21 and the second plate body 52, and the foam ring 213 is arranged around the opening area. Foam is a material that has been foamed by plastic particles. Foam has a series of characteristics such as elasticity, light weight, fast pressure-sensitive fixing, convenient use, free bending, ultra-thin volume, and reliable performance. In this embodiment, the foam ring 213 is arranged between the top cover outer plate 21 and the second plate body 52 , the second plate body 52 provides a sufficient compression space for the installation of the foam ring 213 , and the second plate body 52 The foam ring 213 is firmly pressed under the front roof trim panel 22, so that the foam ring 213 acts as a seal, preventing water from infiltrating into the opening area, preventing water from infiltrating or flowing into the interior of the vehicle body through the opening area, and preventing the interior of the vehicle. When wet, the foam ring 213 can ensure that the opening area is a dry area, so as to realize the sealing performance of the whole vehicle.

Furthermore, in order to ensure the manufacturability and manufacturing yield of the top cover outer plate 21 , the angle of the first flange 501 is 15°, and the radius of the fillet R2 of the first flange 501 is 2 mm. Furthermore, the second plate body 52 is provided with a third flange 503 , and the third flange 503 is provided around the mounting hole 211 or around the positioning hole 212 . Furthermore, the draft angle of the third flange 503 is 150°. The draft angle refers to the angle between the tangential direction of the side where the workpiece intersects the parting surface of the mold and the normal direction of the parting surface of the mold, which is artificially set to allow the workpiece to better escape (pull out) the mold. For example, in the case of setting the draft angle, after the plastic product is molded and cooled, when the workpiece is demolded, as long as the bottom surface is pushed up by the ejector pin, the workpiece is easier to fall out or take out, thereby facilitating the workpiece to be released from the mold. The radius R8 of the fillet of the third flange is 8mm. As shown in FIG. 12 and FIG. 13 , in this embodiment, the positioning hole 212 is set in the middle part of one end of the opening area close to the third plate body 53 ; a width of 10 mm is set between the first flange 501 and the third flange 503 area for setting the foam ring 213.

In this embodiment, the flanging process can be used to form the first flanging 501, the second flanging 502 and the third flanging 503. The flanging process refers to the use of the function of the mold on the plane part or the curved part of the blank. The forming method of forming a straight wall or flange with a certain angle along the closed or unclosed curved edge, and the flanging process is a kind of stamping process. The flanging process can process three-dimensional parts with complex shapes and good rigidity, and can make parts assembled with other product parts on the stamping parts, such as wall plate flanging in passenger cars of locomotives and rolling stock, and pedal door weighting iron in passenger cars. Edge, car outer door panel flanging, motorcycle fuel tank flanging, metal plate small threaded hole flanging, etc. The flanging process can replace the deep drawing process of some complex parts, improve the plastic fluidity of the material to avoid cracking or wrinkling, and replace the method of drawing first and then cutting to produce bottomless parts, which can reduce the number of processing times and save materials.

Further, the appearance surface of the top cover outer panel 21 is formed by stamping at one time, which can ensure that the A side (the A side is an A-level curved surface, that is, the CAS in automobile design, refers to a curved surface with very high quality, here refers to the top cover outer panel). 21 (appearance surface) quality, and can avoid complicated processes such as side shaping to increase costs.

Compared with the prior art, the present invention can meet the front and upper visual field and appearance modeling requirements, and improve the driver's subjective experience; characteristic ribs are added to the roof front beam 24, and the expansion glue connection is optimized as spot welding and the roof outer panel 21 directly. Welding to ensure the rigidity and mode of the front beam 24 of the top cover; the second plate body 52 is used as a plate body with flat features, and at the same time the front ceiling trim plate 22 uses a foam ring 213 and a sealing strip, and the foam ring 213 has enough The overlapping space ensures that the opening area is a dry area and the sealing performance of the whole vehicle; under the premise of meeting the installation space of the front roof trim panel 22, the draft angle and the optimized circle of the first flange 501 and the third flange 503 are increased. The size of the corner feature ensures the quality of the A surface and at the same time meets the requirements of one-time stamping forming, and avoids the cost increase of complicated processes such as side shaping.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Inside.

Claims

A roof structure is characterized in that it comprises a front windshield glass (23), a front roof trim panel (22), a roof outer panel (21) and a roof front beam (24), the front windshield glass (23) A first side and a second side opposite to the first side are provided, the first side of the front windshield glass (23) is connected with the front roof trim panel (22), and the front windshield glass (23) The second side of the top cover is connected to the top cover outer panel (21), the front roof trim panel (22) is connected to the top cover outer panel (21), and the top cover outer panel (21) is connected to the top cover outer panel (21). Cover the front beam (24) connection.
The roof structure according to claim 1, wherein the roof outer plate (21) is welded with the roof front beam (24).
The roof structure according to claim 1, wherein the roof front beam (24) is provided with reinforcing ribs (242).
The roof structure according to claim 1, wherein the roof front beam (24) is provided with a first end and a second end opposite to the first end;

The top cover outer plate (21) is provided with a first plate body (51), a second plate body (52) and a third plate body (53), and the second plate body (52) is provided on the first plate body (52) Between the plate body (51) and the third plate body (53), the first plate body (51) is respectively connected to the second side of the front windshield glass and the first plate body (24) of the top cover. one end is connected, the second plate body (52) is respectively connected with the second end of the roof front cross member (24) and the front roof trim panel, the third plate body (53) is arranged on the surface of the vehicle body .
The roof structure according to claim 4, characterized in that, the third plate body (53) is provided with a first flange (501) bent in a direction away from the front roof trim, and the third plate body (53) is provided with a first flange (501) bent in a direction away from the front roof trim The second plate body (52) is connected with the first flange (501).
The top cover structure according to claim 5, characterized in that the second end of the top cover front beam (24) and the second end of the second plate body (52) close to the first flange (501) connected on one side.
The top cover structure according to claim 6, characterized in that, the second plate body (52) is provided with a second flange (502) bent in a direction away from the front ceiling trim, and the first A plate body (51) is connected with the second flange (502).
The roof structure according to claim 5, characterized in that the second plate body (52) is provided with an opening area, the opening area is provided with a mounting hole (211), and the front ceiling trim panel ( 22) A clip (26) is provided, and the clip (26) is clipped in the installation hole (211).
The top cover structure according to claim 8, characterized in that, the opening area is further provided with positioning holes (212), and the front roof trim panel (22) is further provided with positioning pins, and the positioning pins are provided on the in the positioning hole (212).
The top cover structure according to claim 9, further comprising a foam ring (213), and the foam ring (213) is provided on the top cover outer plate (21) and the second plate body Between (52), the foam ring (213) is arranged around the opening area.
The top cover structure according to claim 5, wherein the angle of the first flange (501) is 15°, and the radius of the fillet of the first flange (501) is 2 mm.
The top cover structure according to claim 9, characterized in that, the second plate body (52) is provided with a third flange (33), and the third flange (33) is provided in the installation hole ( 211) or around the positioning hole (212).
The top cover structure according to claim 12, characterized in that, the angle of the draft angle of the third flange (33) is 150°, and the fillet radius of the third flange (33) is 8 mm.
The top cover structure according to claim 1, characterized in that, the appearance surface of the top cover outer plate (21) is formed by one-step stamping.