CN111645760B

CN111645760B - Rear door C-pillar system

Info

Publication number: CN111645760B
Application number: CN202010490538.0A
Authority: CN
Inventors: 史月; 连志伟; 熊劲; 罗勇
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Motor Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-09-28
Anticipated expiration: 2040-06-02
Also published as: CN111645760A

Abstract

The invention discloses a rear door C-pillar system, which comprises an inner metal plate of a vehicle door, an outer metal plate of the vehicle door, an inner cover plate, an outer cover plate and a lower guide rail, wherein the lower guide rail is arranged between the inner metal plate of the vehicle door and the outer metal plate of the vehicle door; the inner cover plate is connected to the inner side of the C-column door frame assembly, the outer cover plate is connected to the outer side of the C-column door frame assembly, and the upper guide rail is in butt joint with the lower guide rail. The C-pillar door frame assembly is used as a mounting base of the inner cover plate and the outer cover plate, so that the assembly is easy, and the cost is reduced; and the triangle panel beating has separated the inboard and the outside of door, and the leakproofness is better, reduces the production of wind sound.

Description

Rear door C-pillar system

Technical Field

The invention relates to the technical field of automobiles, in particular to a rear door C column system.

Background

One type of existing back door C-pillar system has the following disadvantages:

1) the styling PQ is difficult to achieve: the outer cover plate of the C column of the rear door has a surface difference of 3-5mm with the door frame and the side wall corner window, and zero surface difference cannot be realized;

2) the operation is difficult: after the glass is assembled, the assembling space of the rubber strip of the guide groove and the cover plate assembly is insufficient, the rubber strip is repeatedly twisted, the rubber strip is easy to crease, and the appearance is poor;

3) the structure is complicated, the cost is high:

the triangular cover plate assembly comprises an inner cover plate, an outer cover plate, a guide rail, a bolt and the like, and has the advantages of multiple components, multiple working procedures and high cost;

secondly, the triangular cover plate assembly penetrates through the inner side and the outer side of the vehicle door, and wind sound, water tightness and other problems are easy to occur.

Another existing back door C-pillar system has the following disadvantages:

1) the cost is high: in order to realize the zero surface difference of the C column, a triangular sheet metal part is welded on the door frame, and the high-gloss cover plate can meet the strength requirement only by adopting a double-color injection molding or coating process;

2) weak rigidity: the C column structure is mainly realized by assembling each part in a single product, and has more matching and weak rigidity.

3) The operation is difficult:

firstly, the glass is transmitted to the outer side of the vehicle door through the door frame on the inner side of the vehicle door, a plurality of rotating actions are performed to finish assembly, the beat is slow, and the glass is easy to collide;

secondly, the cover plate and the guide groove are assembled, and the matching of appearance gaps and the like is difficult to guarantee.

Therefore, there is a need for a rear door C-pillar system that is easy to assemble, low cost, rigid, and better sealable.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a rear door C-pillar system which is easy to assemble, low in cost, strong in rigidity and better in sealing performance.

The technical scheme of the invention provides a rear door C-pillar system, which comprises an inner door metal plate, an outer door metal plate, an inner cover plate, an outer cover plate and a lower guide rail, wherein the lower guide rail is arranged between the inner door metal plate and the outer door metal plate;

the inner cover plate is connected to the inner side of the C-column door frame assembly, the outer cover plate is connected to the outer side of the C-column door frame assembly, and the upper guide rail is in butt joint with the lower guide rail.

Further, the front end of triangle panel beating with form the glass draw-in groove that the cross section is the U-shaped between the stringcourse department of panel beating in the door, the glass draw-in groove is used for window glass to insert along vertical direction from the inside of rear door.

Furthermore, the bottom edge of the outer side surface of the inner cover plate is provided with an inserting plate extending along the horizontal direction, an elastic sealing element is inserted into the inserting plate, and the elastic sealing element is located in the glass clamping groove.

Further, the inner cover plate further comprises a front-side wrapping edge, the front-side wrapping edge covers the upper guide rail and the inner side of the triangular metal plate, and the elastic sealing element is used for sealing the front-side wrapping edge with the upper guide rail and a gap between the triangular metal plates.

Further, the triangle panel beating includes the triangle mainboard, and follows first step, second step and the third step that the triangle mainboard formed downwards in proper order, first step outside to the side protruding and with the cooperation of outer apron, the second step for first step internal extension and with form the cross section for the U-shaped between the stringcourse department of panel beating in the door the glass draw-in groove, the third step for second step internal extension and with panel beating welding in the door.

Further, the medial surface of outer apron is equipped with the enclosing cover buckle, the enclosing cover buckle with the first card hole joint of triangle panel beating, first step is located the enclosing cover buckle with the below of triangle panel beating joint department, first step with it is sealed to set for the bubble cotton between the outer apron, the enclosing cover buckle with set up zero between the first card hole and paste the cooperation, the enclosing cover buckle with set up clearance fit between the buckle base.

Furthermore, the waist line of the metal plate in the vehicle door is higher than the lower end of the upper guide rail, and a Z-direction section difference of 10-20mm is formed between the waist line of the metal plate in the vehicle door and the lower end of the upper guide rail.

Furthermore, the top end of the lower guide rail is provided with a horn mouth matched with the rubber strip of the guide groove.

Furthermore, a plurality of second card holes have been seted up on the triangle mainboard of triangle panel beating, the lateral surface of interior apron is equipped with a plurality of inner cup buckles, the inner cup buckle with second card hole joint.

After adopting above-mentioned technical scheme, have following beneficial effect:

in one embodiment of the invention, the C-pillar door frame, the triangular metal plate and the upper guide rail of the C-pillar door frame assembly are connected into a whole, so that the whole structure is simplified, the C-pillar door frame assembly is used as an installation base of the inner cover plate and the outer cover plate, the assembly is easy, and the cost is reduced; the triangular plate, the upper guide rail, the door frame and the inner plate are welded with each other, and the rigidity is improved; and the triangle panel beating has separated the inboard and the outside of door, and the leakproofness is better, reduces the production of wind sound.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

FIG. 1 is a side view of a rear door C-pillar system in one embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of a C-pillar door frame assembly in accordance with an embodiment of the present invention;

FIG. 4 is a transverse cross-sectional view of a C-pillar door frame assembly in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of a triangular sheet metal in an embodiment of the present invention;

FIG. 6 is a partial side view of a rear door C-pillar system in an embodiment of the present invention;

FIG. 7 is a cross-sectional view at C-C in FIG. 6;

FIG. 8 is a partial schematic view of a C-pillar door frame assembly in accordance with an embodiment of the present invention;

FIG. 9 is a transverse cross-sectional view of FIG. 8;

FIG. 10 is a top view of a C-pillar door frame assembly in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of the outer side of the inner decking of the C-pillar door frame assembly in accordance with one embodiment of the invention;

FIG. 12 is an exploded view of the inner cover of the C-pillar door frame assembly in accordance with one embodiment of the present invention;

FIG. 13 is a schematic view of an inner cover plate and an inner sheet metal of a vehicle door according to an embodiment of the present invention;

FIG. 14 is a schematic view of the inside face of the outer cover plate in one embodiment of the invention;

FIG. 15 is a longitudinal cross-sectional view of the mating portion of the outer cover plate and the triangular metal plate in an embodiment of the present invention;

FIG. 16 is a longitudinal cross-sectional view of the sheet metal and the upper and lower rails in the vehicle door in accordance with an embodiment of the present invention;

FIG. 17 is a longitudinal cross-sectional view of a sheet metal and upper and lower rails in a vehicle door in accordance with another embodiment of the present invention.

Reference symbol comparison table:

a door inner metal plate 1 and a door outer metal plate 2;

inner cover plate 3: the plug board 31, the elastic sealing element 32, the front side edge-covering 33, the inner cover buckle 34 and the triangular inner cover main body 35;

the outer cover plate 4: an outer cover buckle 41, foam 42 and a buckle base 43;

the lower guide rail 5: a bell mouth 51;

a triangular metal plate 7: a rear side 72, a front side 71, a lower side 73, a triangular main plate 74, a first step 75, a second step 76, a third step 77, a first engaging hole 78, a second engaging hole 79;

c post door frame 6, upper guideway 8, glass draw-in groove 9, door window glass 10.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings.

It is easily understood that according to the technical solution of the present invention, those skilled in the art can substitute various structures and implementation manners without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as limiting or restricting the technical aspects of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

In an embodiment of the invention, as shown in fig. 1-2, a rear door C-pillar system comprises an inner door metal plate 1, an outer door metal plate 2, an inner cover plate 3, an outer cover plate 4 and a lower guide rail 5, wherein the lower guide rail 5 is installed between the inner door metal plate 1 and the outer door metal plate 2, the outer cover plate 3 and the inner cover plate 4 are respectively positioned above the outer door metal plate 2 and the inner door metal plate 1, and the rear door C-pillar system further comprises a C-pillar door frame assembly, the C-pillar door frame assembly comprises a C-pillar door frame 6, a triangular metal plate 7 and an upper guide rail 8 which are connected into a whole, the triangular metal plate 7 comprises a rear side 72, a front side 71 and a lower side 73, the rear side 72 is connected with the C-pillar door frame 6, and the front side 71 is connected with the upper guide rail 8;

the inner cover plate 3 is connected to the inner side of the C-column door frame assembly, the outer cover plate 4 is connected to the outer side of the C-column door frame assembly, and the upper guide rail 8 is in butt joint with the lower guide rail 5.

Specifically, the main structure of the rear door lower half is composed of the inner metal plate 1 of the door and the outer metal plate 2 of the door, and the lower guide rail 5 is installed between the inner metal plate 1 of the door and the outer metal plate 2 of the door and used for guiding the window glass 10 (see 9) when sliding downwards.

The C-pillar door frame assembly is located above the inner metal plate 1 and the outer metal plate 2 of the vehicle door and serves as a door frame and a guide structure on the rear side of the vehicle window glass 10.

Wherein, C post door frame assembly includes C post door frame 6, triangle panel beating 7 and upper guide 8, and C post door frame 6, triangle panel beating 7 and upper guide 8 weld into a whole, and the rigidity promotes.

As shown in fig. 3 to 4, the upper rail 8 and the front side edge 71 of the triangular sheet metal 7 are welded by spot welding a, and the rear side edge 72 of the triangular sheet metal 7 and the C-pillar door frame 6 are welded by arc welding B.

The C-pillar door frame assembly is a whole, the integral structure is simplified, the C-pillar door frame assembly is used as an installation base of the inner cover plate and the outer cover plate, the C-pillar door frame assembly is convenient to install with the inner cover plate 3 and the outer cover plate 4, and the inner cover plate 3 and the outer cover plate 4 are buckled on the C-pillar door frame assembly from the inner side and the outer side respectively.

In this embodiment, triangle panel beating 7 is a whole piece panel beating, and triangle panel beating 7 has separated the inboard and the outside of door, and the leakproofness is better, reduces the production of wind sound.

Further, as shown in fig. 5 to 7, the triangular sheet metal 7 includes a triangular main plate 74, and a first step 75, a second step 76 and a third step 77 which are formed downward from the triangular main plate 74 in sequence, the first step 71 protrudes outward and is matched with the outer cover plate 4, the second step 76 extends inward relative to the first step 75 and forms a glass clamping groove 9 with a U-shaped cross section with the waist line of the sheet metal 1 in the vehicle door, and the third step 77 extends inward relative to the second step 76 and is welded with the sheet metal 1 in the vehicle door.

Specifically, the triangular main plate 74 is triangular, the triangular main plate 74 includes a front side 71 and a rear side 72, the front side 71 is welded to the upper rail 8, and the rear side 72 is welded to the C-pillar door frame 6.

Three first card holes 78 and a second card hole 79 have been seted up on the triangle mainboard 74, and first card hole 78 and the inner cup buckle 34 joint on the inner cup board 3, second card hole 79 and the outer lid buckle 41 joint on the outer apron 4, have realized the lock of outer apron 4 and inner cup board 3 and triangle mainboard 74.

The triangular main plate 74 extends downward by a first step 75, a second step 76 and a third step 77, and the lower side 73 is located at the bottom edge of the third step 77.

Wherein, first step 75 extends towards the outside, as shown in fig. 7, first step 75 compresses tightly with the cotton 42 of bubble of outer apron 4, and the cotton 42 of bubble plays the effect of filling the clearance and buffering, the effect of noise abatement.

The second step 76 extends inwards relative to the first step 75, and as shown in fig. 8, a glass clamping groove 9 with a U-shaped cross section is formed between the second step 76 and the waist line of the sheet metal 1 in the vehicle door.

The third step 77 extends further inward than the second step 76, and is welded to the door inner panel 1.

The triangular metal plate 7 is connected with the inner cover plate 3, the outer cover plate 4 and the car door inner metal plate 1 through the structures of all parts, and the structure is stable.

The upper rail 8 is butted against the lower rail 5, and is used for guiding the window glass 10 during lifting. The lower guide rail 5 provides support for installation of rubber strips (not shown) of the guide groove, so that the installation is easy, repeated torsion of the rubber strips is avoided, and the risk of poor appearance is eliminated.

Further, as shown in fig. 8-10, a glass clamping groove 9 with a U-shaped cross section is formed between the front end of the triangular sheet metal 7 and the waist line of the sheet metal 1 in the vehicle door, and the glass clamping groove 9 is used for inserting the vehicle window glass from the inner side of the rear door along the vertical direction.

Specifically, as shown in fig. 9, a semi-closed glass clamping groove 9 with a U-shaped cross section is defined between the second step 76 of the triangular sheet metal 7 and the sheet metal 1 in the vehicle door, and an opening is formed above the glass clamping groove 9 in the vertical direction. The window glass 10 can be inserted and mounted in the vertical direction from the inside of the rear door, simplifying the operation at the time of assembly. The glass clamping groove 9 is butted with a glass guide groove (not shown) between the inner metal plate 1 of the vehicle door and the outer metal plate 2 of the vehicle door.

A black line frame D in fig. 10 is an installation space of the window glass 10 formed by the glass neck 9 and the glass run. The vehicle window glass 10 is vertically placed into a cavity between the vehicle door inner metal plate 1 and the vehicle door outer metal plate 2 through the glass clamping groove 9, and various operations such as rotation are not needed; meanwhile, a guide groove adhesive tape (not shown) between the metal plate 1 in the car door and the metal plate 2 outside the car door can be assembled along the door frame, a cover plate does not need to be matched, various twisting actions are performed, and the risk of poor appearance is eliminated.

Further, as shown in fig. 11-13, an insert plate 31 extending in the horizontal direction is provided at the bottom edge of the outer side surface of the inner decking 3, an elastic sealing member 32 is inserted on the insert plate 31, and the elastic sealing member 32 is located in the glass clamping groove 9, so as to realize the sealing of the inner decking 3 in the vehicle height and vehicle length directions.

Specifically, the bottom edge of the outer side surface of the inner deck 3, i.e., the surface facing the outside of the vehicle body, is provided with an insert plate 31 extending in the horizontal direction, the insert plate 31 is located at the front portion of the inner deck 3, and an elastic seal member 32 is adhered to the insert plate 31 in the transverse direction.

In this embodiment, the elastic sealing member 32 is made of sponge, and after the installation, the elastic sealing member 32 extends into the U-shaped glass clamping groove 9, so that the rear end of the inner cover plate 3, which seals the elastic sealing member 32 in the vehicle height and vehicle length directions, abuts against the rear end of the U-shaped glass guide groove 9, and the sealing in the three directions of X/Y/Z at the glass guide groove 9 is realized.

Further, as shown in fig. 11 to 12, the inner panel 3 further includes a front edge 33, the front edge 33 covers the inner sides of the upper rail 8 and the triangular metal plate 7, and the elastic sealing member 32 is used for sealing a gap between the front edge 33 and the upper rail 8 and the triangular metal plate 7, so as to seal the inner panel 3 in the vehicle width direction.

Specifically, the front side wrapping 33 is an inwardly concave wrapping structure, and the front side wrapping 33 is used for covering the inner side surface of the upper guide rail 8.

The insert plate 31 is positioned at the bottom edge of the front side edge 33, a longitudinal L shape is formed between the front side edge 33 and the insert plate 31, and a transverse L shape is formed between the insert plate 31 and the triangle inner cover main body 35 of the inner cover plate 3.

The front end of the elastic sealing member 32 is sealed in the gap between the front side edge 33 and the upper rail 8, and the sealing performance is increased.

Further, as shown in fig. 5 and 11, a plurality of second clamping holes 79 are formed in the triangular main plate 74 of the triangular metal plate 7, a plurality of inner cover buckles 34 are arranged on the outer side surface of the inner cover plate 3, and the inner cover buckles 34 are clamped with the second clamping holes 79.

Further, as shown in fig. 14 to 15, an outer cover buckle 41 is disposed on an inner side surface of the outer cover plate 4, the outer cover buckle 41 is clamped with the first clamping hole 78 of the triangular metal plate 7, the first step 75 is located below a clamping position of the outer cover buckle 41 and the triangular metal plate 7, and the foam 42 is set between the first step 75 and the outer cover plate 4 for sealing, so as to ensure sealing in the vehicle width direction. Zero-sticking fit is arranged between the outer cover buckle 41 and the first clamping hole 78, clearance fit is arranged between the outer cover buckle 41 and the buckle base 43, and the operability is improved.

Specifically, as shown in fig. 1, the outer cover plate 4 covers the outer side surface of the C-pillar door frame assembly, and the outer cover plate 4 covers the outer side of the entire C-pillar door frame 6, so as to realize zero-surface-difference. Outer cover plate 4 is connected through first card hole 78 and enclosing cover buckle 41 between the triangle panel beating 7, and the vibration and the hourglass of outer cover plate 4 are prevented to the cotton 42 of rethread bubble and the first step 75 sealing connection of triangle panel beating 7.

Preferably, the outer cover plate 4 can use a coating-free high-gloss injection molding process, so that the appearance is attractive, and the cost is reduced.

Optionally, the triangular metal plate 7, the C-pillar door frame 6 and the matching edge of the metal plate 1 in the vehicle door form a complete sealing ring through sealant, so that wind sound and watertight performance are ensured, and meanwhile, the cost of foam and the like of the decorative plate is reduced.

Further, as shown in fig. 16, the waist line of the metal plate 1 in the door is higher than the lower end of the upper guide rail 8, and a Z-direction step of 10-20mm is formed between the waist line of the metal plate 1 in the door and the lower end of the upper guide rail 8, so that the assembly performance of the window glass 10 and the rubber strip of the guide groove is improved.

In fig. 16, the upper guide rail 8 is welded with the C-pillar door frame assembly, the structure and the rigidity are more stable, and the matched clamping claws at the tail end of the lower guide rail 5 are eliminated, so that the redundant design is eliminated.

Alternatively, as shown in fig. 17, the top end of the lower rail 5 is provided with a bell mouth 51 matched with the guide slot adhesive tape, and the bell mouth 51 is easier to assemble the guide slot adhesive tape.

In one embodiment of the invention, the rear door C column system has the following beneficial effects:

1. the C column system of the rear door realizes the smoothness and PQ lifting;

2. the upper guide rail, the triangular metal plate and the C-pillar door frame are designed into an integral metal plate structure, so that the rigidity is improved, and the cost is reduced;

3. a section difference structure is designed between a metal plate and a triangular metal plate in the vehicle door, and a lower guide rail structure is newly arranged, so that the operability of glass is improved;

4. the sealing performance is better, reduces the production of vibration noise and wind sound.

The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims

1. A rear door C column system comprises a vehicle door inner metal plate (1), a vehicle door outer metal plate (2), an inner cover plate (3), an outer cover plate (4) and a lower guide rail (5), the lower guide rail (5) is arranged between the inner metal plate (1) and the outer metal plate (2), the outer cover plate (3) and the inner cover plate (4) are respectively positioned above the outer metal plate (2) of the vehicle door and the inner metal plate (1) of the vehicle door, it is characterized by also comprising a C-pillar door frame assembly, wherein the C-pillar door frame assembly comprises a C-pillar door frame (6), a triangular metal plate (7) and an upper guide rail (8) which are connected into a whole, the triangular metal plate (7) comprises a rear side edge (71), a front side edge (72) and a lower side edge (73), the rear side (71) is connected with the C-pillar door frame (6), and the front side (72) is connected with the upper guide rail (8);

the inner cover plate (3) is connected to the inner side of the C-column door frame assembly, the outer cover plate (4) is connected to the outer side of the C-column door frame assembly, and the upper guide rail (8) is in butt joint with the lower guide rail (5).

2. The rear door C-pillar system according to claim 1, characterized in that a glass clamping groove (9) with a U-shaped cross section is formed between the front end of the triangular sheet metal (7) and the waist line of the sheet metal (1) in the door, and the glass clamping groove (9) is used for inserting the window glass (10) from the inner side of the rear door along the vertical direction.

3. A rear door C-pillar system according to claim 2, wherein the bottom edge of the outer side of the inner decking (3) is provided with an insert plate (31) extending in the horizontal direction, an elastic sealing member (32) is inserted on the insert plate (31), and the elastic sealing member (32) is located in the glass neck (9).

4. A rear door C-pillar system according to claim 3, characterized in that the inner cover plate (3) further comprises a front side trim (33), the front side trim (33) covers the inner side of the upper rail (8) and the gusset (7), the elastic sealing member (32) is used to seal the gap between the front side trim (33) and the upper rail (8) and the gusset (7).

5. The rear door C-pillar system according to claim 3, wherein the triangular sheet metal (7) comprises a triangular main plate (74), and a first step (75), a second step (76) and a third step (77) which are sequentially formed downwards from the triangular main plate (74), the first step (75) protrudes outwards and is matched with the outer cover plate (4), the second step (76) extends inwards relative to the first step (75) and is matched with a waist line of the sheet metal (1) in the vehicle door to form the glass clamping groove (9) with a U-shaped cross section, and the third step (77) extends inwards relative to the second step (76) and is welded with the sheet metal (1) in the vehicle door.

6. The back door C-pillar system according to claim 5, characterized in that the inner side surface of the outer cover plate (4) is provided with an outer cover buckle (41), the outer cover buckle (41) is connected with a first clamping hole (78) of the triangular metal plate (7) in a clamping manner, a first step (75) is located below the joint of the outer cover buckle (41) and the triangular metal plate (7), a foam (42) is set between the first step (75) and the outer cover plate (4) to be sealed, a zero-paste fit is set between the outer cover buckle (41) and the first clamping hole (78), and a clearance fit is arranged between the outer cover buckle (41) and the buckle base (43).

7. A rear door C-pillar system according to claim 1, characterized in that the belt line of the inner sheet metal (1) of the door is higher than the lower end of the upper guide rail (8), and a Z-direction step difference of 10-20mm is formed between the belt line of the inner sheet metal (1) of the door and the lower end of the upper guide rail (8).

8. A rear door C-pillar system according to claim 1, characterized in that the top end of the lower guide rail (5) is provided with a bell mouth cooperating with the guide slot glue strip.

9. The rear door C-pillar system according to claim 1, wherein a plurality of second clamping holes (79) are formed in a triangular main plate (74) of the triangular metal plate (7), a plurality of inner cover buckles (34) are arranged on the outer side surface of the inner cover plate (3), and the inner cover buckles (34) are clamped with the second clamping holes (79).