CN116373570A - A connection structure between the A-pillar sealing strip corner of the front door and the window frame - Google Patents

Abstract

The invention relates to a connecting structure of a front door A column sealing strip joint angle and a window frame, which comprises a sealing joint angle strip body, a door outer plate, a door inner plate, a door window frame, a side wall, a fender, a rearview mirror and a door bright strip; the door and window frame is connected with the upper edges of the door outer plate and the door inner plate, and comprises a window frame reinforcing piece, a window frame upper sliding groove, a top sealing strip and a bottom sealing strip; the bottom of the sealing corner connecting strip body is clamped with the upper sliding groove of the window frame, and the sealing corner connecting strip body is connected with the top sealing strip and the bottom sealing strip to form a front door A column sealing part. The sealing strip of the front door A column can be well matched with adjacent components and the door window frame, water leakage can be prevented, and the NVH sealing performance of the automobile is improved.

Description

A connection structure between the A-pillar sealing strip corner of the front door and the window frame

technical field

The invention relates to an automobile door, in particular to a connection structure between a front door A-pillar sealing strip corner and a window frame.

Background technique

The front door A-pillar seal corner is a sealing component, that is, the door seal corner is set at the corner of the door according to the peripheral data of the door sheet metal. Cover and waterproof the corners of the door that are not beautiful and prone to water leakage, so as to play a role of decoration and sealing.

The existing front door A-pillar sealing strip corner includes a corner base, a hollow part and a solid part fixedly connected to the corner base, a buckle disposed on the hollow part, and a corner insert disposed on the solid part. The joint angle of the front door sealing strip in the prior art is clamped and fixed with the car door window frame and the reinforcement by buckles. Among them, the hollow part of the front door A-pillar seal corner of the prior art, in the process of the door from opening to closing, is squeezed by the side wall to cause the hollow part to deform and play a sealing role. Deformation and wrinkling problems caused by long-term extrusion.

The front door A-pillar sealing strip of the prior art is mainly fixed on the front door window frame through the clips on the corner inserts. Its function is to stabilize the sealing strip and block the unsightly parts of the sheet metal. The lip plays the role of decorating window frames, fenders and side wall gaps and sealing and waterproofing. Affected by the manufacturing quality of the corners of the sealing strip, problems such as poor clamping, falling off, and water ingress are prone to occur at the matching part of the lip lip and the bright strip.

The front door A-pillar seal corner base of the prior art is mainly fixed on the front door window frame by clips, and its function is to support the seal body, ensure the stability and firmness of the seal, and then play the role of sealing and waterproof. Since the window frame adopts a butt joint welding structure at the corner of the A-pillar seal of the front door, a large amount of rainwater gathers at the tailor-weld joint when passing the rain line and forms stagnant water, and the water seeps out from the corner joint of the A-pillar seal of the front door. There are problems such as poor sealing and water leakage.

All in all, the corner joint structure of the front door A-pillar sealing strip in the prior art is not conducive to the sealing and waterproof functions of the sealing strip, and seriously affects the sealing quality of the whole vehicle. Needs to be improved.

CN203460670U discloses "a connection structure for a vehicle door weather strip", which specifically relates to a corner insert for a door weather strip, which includes a main body, a buckle fixedly arranged on one surface of the main body, and a hook penetrating through the main body. Compound flow hole. At the same time, it also relates to a car door weather strip corner insert with the car door weather strip corner insert. Using the above technical scheme, by adding a door seal corner insert in the door seal corner, the bonding area between the door seal corner and the door sheet metal is increased, which effectively improves the door seal corner and the door. Sheet metal fit. Using the above technical scheme, by adding a door seal corner insert in the door seal corner, the bonding area between the door seal corner and the door sheet metal is increased, which effectively improves the door seal corner and the door. Sheet metal fit.

CN112092591A discloses "a sealing strip corner and a connection structure between the sealing strip corner and the door window frame", the sealing strip corner includes a corner body, a first insert and a second insert; the corner body adopts Made of elastic material, the first insert and the second insert are both made of plastic material, the first insert and the second insert are both arranged on the corner body, the The first insert and the second insert can be connected to the window frame of the vehicle door; the connection structure between the sealing strip corner and the window frame of the vehicle door includes the window frame of the vehicle door and the sealing strip corner. Its sealing strip corners, exterior decorative cover, decorative bright strips and door and window frames are well coordinated, which can improve the NVH sealing performance of the car, ensure assembly accuracy, improve assembly efficiency, and ensure appearance quality.

Contents of the invention

The purpose of the present invention is to provide a front door A-pillar seal corner and a connection structure with the window frame, which can ensure that the front door A-pillar seal corner cooperates well with adjacent components and the door window frame, and can prevent water leakage and improve the performance of the automobile. NVH sealing performance.

A front door A-pillar seal corner and window frame connection structure according to the present invention comprises a seal corner body, a door outer panel, a door inner panel, a door window frame, a side wall, a fender, a rearview mirror and The car door bright strip is characterized in that: the car door window frame is connected with the upper side of the car door outer panel and the car door inner panel, and the car door window frame includes a window frame reinforcement, a chute on the window frame, a top sealing strip and a bottom sealing strip; The bottom of the seal corner strip body is clamped with the upper chute of the window frame, and the seal corner strip body is connected with the top seal strip and the bottom seal strip to form the A-pillar seal part of the front door.

Further, the body of the sealed corner strip is composed of a solid part and a hollow part; snapping teeth and avoidance structures are provided at the lower part of the solid part, and the snapping teeth are engaged with the chute on the window frame; the avoidance The structure is used to avoid the mounting bolts of the rearview mirror and the clips of the door bright strips.

Further, a corner insert is also provided on the solid part of the sealing corner strip body, and the corner insert includes an assembly boss and a connection buckle provided thereon, and the corner insert and the connection The buckles are all made of plastic materials, and the corner insert is embedded in the body of the sealed corner strip; a plurality of glue injection positioning holes and a glue injection via hole are also provided on the corner insert.

Further, corner-joint foam is pasted on the lower part of the body of the sealing corner strip.

Further, the hollow part of the body of the sealed corner strip is a bubble structure, and the bubble structure has a fitting part and a shielding part; the fitting part of the bubble structure interferes with the side wall; the shielding part and the window frame The upper chute is interference fit, and the interference amount is 0.4mm.

Further, the bubble-shaped structure is also provided with a shielding lip, which is used to shield the gaps where the fenders, rearview mirrors, door bright strips and side panels fit together.

Further, two corner protrusions are provided between the bubble structure of the corner body of the sealing strip and the shielding lip, and the two corner protrusions are located near the boundary of the top sealing strip.

Further, two snap-fit lips are provided on the snap-fit teeth at the lower part of the sealing strip corner body, and the two snap-fit lips form a "U"-shaped snap-fit structure, which is assembled to the window frame by snap-fit on the reinforcement.

Further, the upper chute of the window frame and the window frame reinforcement are connected together by shielded welding, extend between the outer panel of the vehicle door and the inner panel of the vehicle door, and are connected together by spot welding and shielded welding.

Further, the sliding slot on the window frame adopts an integrated roll forming roll bending structure, extends to the corner of the A-pillar sealing strip of the front door, and is welded with the window frame reinforcement as a whole.

Beneficial effects of the present invention:

Since the body of the sealed corner is made of elastic material and has ductility, the corner insert and the connecting buckle are made of plastic material and can be used for positioning, so the positions of the corner insert and the connecting buckle can be fine-tuned respectively To meet the tolerance capacity of the sealing strip corner body and prevent the situation that the sealing strip corner body cannot be installed; due to the good cooperation of various components, the NVH sealing performance and waterproof performance of the car are significantly improved, ensuring the assembly accuracy of the whole vehicle, and improving Improve assembly efficiency and improve appearance quality.

Description of drawings

Fig. 1 is one of structural schematic diagrams (inside) of the present invention;

Fig. 2 is the second structural schematic diagram of the present invention (outside);

Fig. 3 is a schematic diagram of the matching of the sealing strip corner body and peripheral components of the present invention;

Figure 4 is an exploded view of the main body of the sealing strip joint;

Fig. 5 is a structural schematic diagram of the A-pillar window frame of the front door;

Figure 6 is one of the schematic diagrams of the cooperation between the sealing strip corner body and the A-pillar window frame of the front door;

Fig. 7 is the second schematic diagram of cooperation between the sealing strip corner body and the A-pillar window frame of the front door.

In the figure (the technical features indicated by the marks):

10—Sealed corner strip body:

11—clamping teeth,

12—avoidance structure;

13—corner insert, 131—assembly boss, 132—connection buckle, 133—glue injection positioning hole, 134—glue injection via hole; 14—corner foam,

15—bubble structure, 151—fitting portion, 152—shielding portion;

16—covers the lips,

17—corner boss,

18—snap lip;

20—door outer panel;

30—door inner panel,

40—door window frame, 41—window frame reinforcement, 42—window frame upper chute, 43—top sealing strip, 44—bottom sealing strip;

50—side circumference;

60—fender;

70 — rearview mirror;

80—Door bright strip.

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

Referring to Fig. 1 to Fig. 7, a front door A-pillar seal corner and window frame connection structure, including a seal corner body 10, a door outer panel 20, a door inner panel 30, a door window frame 40, and a side wall 50 , the fender 60, the rearview mirror 70 and the bright strip 80 of the car door; the door sash 40 is connected to the top of the door outer panel 20 and the door inner panel 30, and the door sash 40 includes a window frame reinforcement 41, a window Frame upper chute 42, top sealing strip 43 and bottom sealing strip 44; the bottom of the sealing corner strip body 10 is clamped with the window frame upper chute 42, and the sealing corner strip body 10 is connected to the top sealing strip 43 and The bottom sealing strip 44 is connected to form the A-pillar sealing part of the front door.

The sealing corner strip body 10 is composed of a solid part and a hollow part; the lower part of the solid part is provided with a snap-in tooth 11 and an avoidance structure 12, and the snap-in tooth 11 is snapped into the chute 42 on the window frame, In order to prevent the main body of the sealing strip corner from being forced out; the avoidance structure 12 is used to avoid the mounting bolts of the rearview mirror 70 and the clips of the door bright strip 80 .

A corner insert 13 is also provided on the solid part of the sealing corner strip body 10, and the corner insert 13 includes an assembly boss 131 and a connecting buckle 132 provided thereon. Both the piece 13 and the connecting buckle 132 are made of plastic material, and the corner insert 13 is embedded in the inside of the sealing corner strip body 10; a plurality of glue injection positioning holes 133 are also arranged on the corner insert 13 and a glue injection via hole 134 . When producing the corner body of the sealing strip, the corner insert is first processed and formed, and then the corner insert 13 is put into the corner mold, and the mold positioning column of the mold cavity passes through the injection positioning hole, so that the corner insert Fix the parts, and then inject EPDM sponge rubber into the mold cavity to form the body of the sealing corner strip. At the same time, the body of the sealing corner strip and the corner insert 13 are combined to form a whole through the injection hole, and finally the corner clip Buckles fit over said corner inserts.

Corner foam 14 is pasted on the lower part of the sealing corner strip body 10 to prevent rain and wind noise.

The hollow part of the sealing corner strip body 10 is a bubble-shaped structure 15, and the bubble-shaped structure 15 has a matching portion 151 and a shielding portion 152; the matching portion 151 of the bubble-shaped structure 15 interferes with the side wall 50; The shielding part 152 interferes with the sliding groove 42 on the window frame, and the interference amount is 0.4mm; it plays the role of sealing and waterproofing.

The bubble-shaped structure 15 is also provided with a shielding lip 16 , which is used to shield the gaps where the fender 60 , the rearview mirror 70 , the door bright strip 80 and the side wall 50 cooperate. Play the role of beautifying the appearance.

Two corner protrusions 17 are provided between the bubble structure 15 of the sealing strip corner body 10 and the shielding lip 16 , and the two corner protrusions 17 are located near the boundary of the top sealing strip 43 . This structure can play a certain role of isolation and support, and can prevent the bubble structure from collapsing and deforming due to the long-term extrusion of the blocking lip when the door is closed.

Two snap-in lips 18 are provided on the snap-in teeth 11 at the lower part of the sealing strip corner body 10, and the two snap-in lips 18 form a "U"-shaped snap-in structure, which is assembled to the on the window frame reinforcement 41. It plays a certain role in fixing and supporting the body of the sealing strip corner. This kind of structure is relatively stable, which can prevent the body of the sealing strip corner from being forced out of the seam and falling out during the door opening and closing process, and can also play a certain role in sheltering from wind and rain. .

The upper chute 42 of the window frame and the window frame reinforcement 41 are connected together by shielded welding, extend between the door outer panel 20 and the car door inner panel 30 and are connected together by spot welding and shielded welding. It is used to assemble and support the sealing strip corner body.

The upper chute slot 42 of the window frame adopts an integrated roll-formed roll-bending structure, extends to the corner of the A-pillar seal of the front door, and is welded with the window frame reinforcement 41 as a whole. There is no disconnected splicing in this structure, which can effectively prevent water accumulation in the protective welding of tailor welding, which may cause water leakage in the A-pillar area.

The above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. Without departing from the spirit and scope of the technical solutions of the present invention, all of them should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a preceding door A post sealing strip connects angle and window frame connection structure, includes seal angle strip body (10), door planking (20), door inner panel (30), door and window frame (40), side wall (50), fender (60), rear-view mirror (70) and door bright wisp (80), characterized by: the door window frame (40) is connected with the upper edges of the outer door plate (20) and the inner door plate (30), and the door window frame (40) comprises a window frame reinforcing piece (41), a window frame upper sliding groove (42), a top sealing strip (43) and a bottom sealing strip (44); the bottom of the sealing corner strip body (10) is clamped with the upper sliding groove (42) of the window frame, and the sealing corner strip body (10) is connected with the top sealing strip (43) and the bottom sealing strip (44) to form a front door A column sealing part.

2. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 1, characterized in that: the sealing joint angle strip body (10) consists of a solid part and a hollow part; the lower part of the solid part is provided with a clamping tooth (11) and an avoidance structure (12), and the clamping tooth (11) is clamped with an upper sliding groove (42) of the window frame; the avoidance structure (12) is used for avoiding a mounting bolt of the rearview mirror (70) and a clip of a bright strip (80) of a vehicle door.

3. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 2, characterized in that: the solid part of the sealing corner joint strip body (10) is also provided with a corner joint insert (13), the corner joint insert (13) comprises an assembly boss (131) and a connecting buckle (132) which are arranged on the corner joint insert, the corner joint insert (13) and the connecting buckle (132) are made of plastic materials, and the corner joint insert (13) is embedded into the sealing corner joint strip body (10); and the corner insert (13) is also provided with a plurality of glue injection positioning holes (133) and a glue injection through hole (134).

4. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 3, characterized in that: and the lower part of the sealing corner connecting strip body (10) is stuck with corner connecting foam (14).

5. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 2, characterized in that: the hollow part of the sealing joint angle strip body (10) is a bubble-shaped structure (15), and the bubble-shaped structure (15) is provided with a matching part (151) and a shielding part (152); the matching part (151) of the bubble structure (15) is in interference fit with the side wall (50); the shielding part (152) is in interference fit with the upper sliding groove (42) of the window frame, and the interference amount is 0.4mm.

6. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 5, characterized in that: and a shielding lip edge (16) is further arranged on the bubble-shaped structure (15), and the shielding lip edge (16) is used for shielding gaps at the matched positions of the fender (60), the rearview mirror (70), the car door bright wisp (80) and the side wall (50).

7. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 6, characterized in that: two corner connecting bosses (17) are arranged between the bubble-shaped structure (15) of the sealing strip corner connecting body (10) and the shielding lip (16), and the two corner connecting bosses (17) are positioned near the boundary of the top sealing strip (43).

8. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 6, characterized in that: two clamping lips (18) are arranged on clamping teeth (11) at the lower part of the sealing strip joint angle body (10), the two clamping lips (18) form a U-shaped clamping structure, and the U-shaped clamping structure is assembled on a window frame reinforcing piece (41) in a clamping mode.

9. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 1, characterized in that: the window frame upper runner (42) and the window frame stiffener (41) are joined together by means of a tack weld, extend between the door outer panel (20) and the door inner panel (30), and are joined together by means of spot welding and tack welding.

10. The front door a-pillar weather strip joint angle and window frame connecting structure according to claim 9, characterized in that: the upper sliding groove clamping groove (42) of the window frame adopts an integrally roll-formed roll bending structure, extends to the corner position of the joint angle of the sealing strip of the front door A column, and is welded with the reinforcing piece (41) of the window frame into a whole.

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