A frameless door A-pillar guide structure

Abstract

The application discloses a frameless car door A column guide groove structure, and aims to solve the poor sealing of the traditional frameless car door, which is caused by the absence of the window frame, and the poor sealing performance of the car door, which leads to the poor NVH experience of the customer, and the poor sealing performance of the car door. The application comprises a door sheet metal, a door sheet metal is provided with a door triangular sheet metal and an outer decorative plate on the side close to the rearview mirror, a guide groove joint is arranged on the door triangular sheet metal, the outer decorative plate is connected with the guide groove joint in a pressing mode, and foam is arranged between the outer decorative plate and the door triangular sheet metal; a guide groove guide rail is arranged on the door sheet metal, and an A column guide groove body is arranged in the guide groove guide rail; the frameless A column guide groove body of the application is matched with the door sheet metal and the guide groove guide rail in a mode of joint injection, and meanwhile, the outer decorative plate and the foam on the outer side form a complete sealing structure, so that the application has double sealing performance, the first sealing performance is between the glass and the sealing strip, and the second sealing performance is between the guide groove, the foam and the outer decorative plate; and the sealing performance of the A column is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile parts, in particular to a frameless vehicle door A-pillar guide groove structure. BACKGROUND

[0002] With the continuous development of the automobile market, the application of frameless vehicle doors gradually increases, and the frameless vehicle doors have the problems of air and water leakage of A, B and C pillars due to the absence of an upper window frame structure; the A pillar is the largest windward surface, and the water and air tightness requirements of the whole vehicle are relatively high; the traditional vehicle doors have poor A-pillar sealing performance due to the structural reasons; the frameless vehicle doors have poor sealing performance due to the absence of a window frame, which particularly seriously affects the NVH experience of customers, and the sealing performance is extremely poor.

[0003] At present, the frameless vehicle doors on the market mainly adopt an integral sealing structure, only have one sealing, and the whole-circle sealing is composed of multiple sections, so that the vehicle door and the A pillar are relatively simple to match, lack reliable sealing structures, and are extremely prone to local sealing failure, which affects the NVH performance of the whole vehicle. An invention patent with the publication number CN111301130A discloses a frameless vehicle door sealing structure, which comprises a vehicle body, the vehicle body comprises a side wall sheet metal and a vehicle door sheet metal, and the vehicle body structure is provided with a top sealing structure, an A-pillar sealing structure, a B-pillar sealing structure and a waistline sealing structure around the periphery; the top sealing structure comprises an upper frame guide rail and a top sealing strip, the top sealing strip is arranged in the upper frame guide rail, the upper frame guide rail is fixedly connected with the side wall sheet metal, and the top sealing strip comprises an upper frame guide rail connecting portion and a glass top end sealing portion. The invention overcomes the problems of the prior art, such as complex frameless vehicle door sealing structure, difficult assembly, and great difficulty in disassembly and replacement after sale, realizes sealing and waterproofing and takes into account the appearance through different schemes, has a simple structure, is relatively easy to manufacture, is simple to assemble, is stable in fixation, is convenient to disassemble and replace after sale, and has good sealing performance. However, the technical scheme of the invention does not involve the sealing between the vehicle door and the A pillar. SUMMARY

[0004] The application overcomes the deficiencies of the traditional frameless vehicle door, such as poor sealing performance, particularly serious poor sealing performance, very poor NVH experience of customers, and extremely poor sealing performance, and provides a frameless vehicle door A-pillar guide groove structure, which can form a completely sealed structure through the mutual matching structure of the vehicle door sheet metal structure, the guide groove, the foam and the vehicle door exterior trim panel, improve the A-pillar sealing performance, and further improve the NVH performance of the whole vehicle.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: a frameless vehicle door A column guide groove structure, comprising a vehicle door sheet metal, a vehicle door sheet metal near a side of a rearview mirror is provided with a vehicle door triangular sheet metal and an outer decorative plate, the vehicle door triangular sheet metal is provided with a guide groove joint, the outer decorative plate is extrudedly connected with the guide groove joint, and the outer decorative plate and the vehicle door triangular sheet metal are provided with a foam therebetween; the vehicle door sheet metal is provided with a guide groove guide rail, and the guide groove guide rail is provided with an A column guide groove body.

[0006] The traditional vehicle door has poor A column sealing performance due to its structure, and the frameless vehicle door has particularly poor sealing performance due to no window frame. The frameless A column guide groove body of the present application is matched with the vehicle door sheet metal and the guide groove guide rail in the mode of injection molding joint, and a complete sealing structure is formed by combining the outer decorative plate and the foam on the outside, which has double sealing performance, the first sealing performance is between the glass and the sealing strip, and the second sealing performance is formed between the guide groove and the foam and the outer decorative plate; thereby effectively improving the A column sealing performance, and further improving the customer's NVH experience.

[0007] As a preferred, the guide groove joint is extruded with the vehicle door sheet metal to form a cladding groove, a plurality of guide blocks are arranged on the guide groove joint, and the guide blocks are in contact with the side surface of the vehicle door sheet metal. The guide groove joint structure can tightly cladding the whole vehicle door sheet metal, thereby improving the overall sealing performance of the A column, and further improving the water sealing and air sealing of the A column.

[0008] As a preferred, a buckle groove is formed by the intersection of the guide groove joint and the outer decorative plate, and the buckle groove is extrudedly sealed with the outer decorative plate. The buckle groove structure can realize the sealing installation of the outer decorative plate.

[0009] As a preferred, a plurality of support plates are arranged on the side of the outer decorative plate close to the vehicle door sheet metal, one of the support plates and the vehicle door sheet metal and the outer decorative plate form a first foam cavity, and the other support plate and the vehicle door sheet metal, the outer decorative plate and the guide groove guide rail form a second foam cavity, and the first foam cavity and the second foam cavity are filled with foam. Two support plates are arranged, two first foam cavities and second foam cavities are formed by the above structure combination, and double foam sealing structure is formed after filling the foam, which can effectively reduce the wind noise during the driving of the automobile, and realize double foam sealing, thereby greatly improving the overall sealing performance of the A column.

[0010] As a preferred, a glass guide groove is arranged on the A column guide groove body, a first lip and a second lip are arranged on the glass guide groove, a vehicle door glass is arranged in the glass guide groove, and the front and rear sides of the vehicle door glass are extrudedly sealed with the first lip and the second lip. The structure design is conducive to improving the sealing performance of the vehicle door glass and the A column guide groove body.

[0011] As preferred, the installation guide groove is arranged in the guide groove rail, the A-pillar guide groove body is arranged in the installation guide groove, the third lip and the fourth lip are arranged outside the A-pillar guide groove body, the protrusion is arranged in the installation guide groove, the inwardly-retracted edge is further arranged on the inner wall of the installation guide groove, the installation guide groove is formed with a necking cavity through the protrusion and the inwardly-retracted edge, and the A-pillar guide groove body is realized extrusion sealing with the necking cavity through the third lip and the fourth lip. The necking cavity structure in the guide groove rail can reduce the contact surface between the A-pillar guide groove body and the guide groove rail, realize linear contact, improve the fastening degree of the A-pillar guide groove body, and improve the heat dissipation performance of the A-pillar guide groove body.

[0012] As preferred, the fifth lip is arranged on the A-pillar guide groove body at the back side of the second lip, the sealing groove is arranged between the fifth lip and the A-pillar guide groove body, the opening of the sealing groove faces the inwardly-retracted edge side, and the foam in the second foam cavity is extrusion sealed. The foam body extending out of the second foam cavity is extrusion matched with the fifth lip and the outer decorative plate foam; when the foam body is filled with water or is extrusion expanded under stress, the sealing groove becomes smaller, the fifth lip and the inwardly-retracted edge are extrusion matched, and the sealing performance of the A-pillar guide groove body structure is further improved, that is, the overall water sealing and air sealing are improved, and the air leakage and water leakage of the A-pillar guide groove body are effectively avoided.

[0013] As preferred, the inner walls of the first lip and the second lip near the glass door glass side of the glass guide groove are both provided with fluff. The fluff is flannelette, which mainly contacts the glass surface, is beneficial to reduce the friction between the glass and the A-pillar guide groove body, and can improve the sealing between the sealing strip and the glass.

[0014] Compared with the prior art, the glass guide groove adopts a plurality of material composite extrusion to form a good sealing performance with the glass, simultaneously adopts an injection molding corner joint mode to coat the upper end and other components, completely coats the entire door sheet metal within the guide groove corner joint, cooperates the cooperation between the A-pillar guide groove body and the guide groove rail, seals the entire A-pillar, adopts the matching of the foam and the support plate and the outer decorative plate on the inside of the A-pillar, forms a second sealing, and improves the sealing reliability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic view of a frameless door A-pillar of the present application;

[0016] Figure 2 is a structure schematic view of an A-pillar guide groove structure of the present application;

[0017] Figure 3 is Figure 2 a sectional view of "A-A" in FIG. 1;

[0018] Figure 4 is Figure 2 a sectional view of "B-B" in FIG. 1;

[0019] Figure 5 is Figure 2 a sectional view at "C-C" in FIG. 1;

[0020] In the figure: A-pillar 100; A-pillar guide structure 101; door panel 1; door triangular panel 2; outer trim panel 3; guide corner 4; foam 5; guide rail 6; A-pillar guide body 7; covering groove 8; guide block 9; buckle groove 10; support plate 11; first foam cavity 12; second foam cavity 13; glass guide 14; first lip 15; second lip 16; door glass 17; mounting guide 18; third lip 19; fourth lip 20; protrusion 21; inwardly-recessed edge 22; necked cavity 23; rack connecting section 24; fifth lip 25; sealing groove 26; foam body 27; fluff 28. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein merely exemplify the application and do not limit the application.

[0022] The technical solutions of the present application are further described below by specific embodiments and in conjunction with the drawings:

[0023] Embodiment 1: A frameless door A-pillar guide structure (see FIG. 1) Figures 1-5), comprising an A-pillar 100, an A-pillar guide groove structure 101 being arranged in the A-pillar 100, the A-pillar guide groove structure 101 comprising a door sheet metal 1, a door triangular sheet metal 2 and an outer trim panel 3 being arranged on a side of the door sheet metal 1 close to a rearview mirror, a guide groove connecting corner being arranged on the door triangular sheet metal 2, the outer trim panel 3 being extrudedly connected with the guide groove connecting corner 4, a foam 5 being arranged between the outer trim panel 3 and the door triangular sheet metal 2; a guide groove guide rail 6 being arranged on the door sheet metal 1, an A-pillar guide groove body 7 being arranged in the guide groove guide rail 6. The guide groove connecting corner 4 and the door sheet metal 1 extrude to form a cladding groove 8, two guide blocks 9 being arranged on the guide groove connecting corner 4, the guide blocks 9 being in a strip shape, the guide blocks 9 being in contact with a side of the door sheet metal 1. The guide groove connecting corner 4 intersects with the outer trim panel 3 to form a buckle groove 10, the buckle groove 10 being extrudedly sealed with the outer trim panel 3. Two support plates 11 being arranged on a side of the outer trim panel 3 close to the door sheet metal 1, one of the support plates 11 and the door sheet metal 1 and the outer trim panel 3 combine to form a first foam cavity 12, the other support plate 11 and the door sheet metal 1 and the outer trim panel 3 and the guide groove guide rail 6 combine to form a second foam cavity 13, the first foam cavity 12 and the second foam cavity 13 are filled with the foam 5. Two support plates 11 are arranged, two first foam cavities 12 and second foam cavities 13 can be formed through the above-mentioned structure combination, double foam sealing structure can be formed after the foam 5 is filled, the structure can effectively reduce the wind noise in the process of driving the automobile; double foam sealing can also be realized, and the overall sealing performance of the A-pillar is improved. A glass guide groove 14 is arranged on the A-pillar guide groove body 7, a first lip 15 and a second lip 16 are arranged on the glass guide groove 14, a door glass 17 is arranged in the glass guide groove 14, the door glass 17 is extrudedly sealed with the first lip 15 and the second lip 16 on the front and back sides. An installation guide groove 18 is arranged in the guide groove guide rail 6, the A-pillar guide groove body 7 is arranged in the installation guide groove 18, a third lip 19 and a fourth lip 20 are arranged on the outer side of the A-pillar guide groove body 7, a protrusion 21 is arranged in the installation guide groove 18, an inwardly recessed edge 22 is further arranged on the inner wall of the installation guide groove 18, a neck cavity 23 is formed in the installation guide groove through the protrusion 21 and the inwardly recessed edge 22, the A-pillar guide groove body 7 is extrudedly sealed with the neck cavity through the third lip 19 and the fourth lip 20; a rack connecting section 24 is arranged on the A-pillar guide groove body 7 on the back side of the first lip 15, the rack connecting section 24 is fixedly connected with the guide groove guide rail 6. The structure design of the neck cavity 23 in the guide groove guide rail 6 can reduce the contact surface between the A-pillar guide groove body 7 and the guide groove guide rail 6, realize linear contact, improve the fastening degree of the A-pillar guide groove body 7, and improve the heat dissipation performance of the A-pillar guide groove body 7. A fifth lip 25 is arranged on the A-pillar guide groove body 7 on the back side of the second lip 16, a sealing groove 26 is arranged between the fifth lip 25 and the A-pillar guide groove body 7, the opening of the sealing groove 26 faces the inwardly recessed edge side, and the sealing groove 26 is extrudedly sealed with the foam 5 in the second foam cavity 13.The foam body 27 extending out of the second foam cavity 13 is in extrusion fit with the fifth lip and the outer decorative plate 3; when the foam 5 is filled with water or is pressed to expand, the sealing groove 26 becomes smaller, the fifth lip 25 and the inner shrinkage edge 22 are in extrusion fit, which can further improve the sealing performance of the A-pillar guide groove body 7 structure, that is, improve the overall water sealing and air sealing, effectively avoid the A-pillar guide groove body 7 from leaking air and water. The first lip and the second lip inner wall of the glass guide groove close to the door glass side are both provided with fluff 28. The fluff 28 is a flannelette.

[0024] Referring to the drawings Figures 4-5 The A-pillar guide groove body 7 is treated with EPDM rubber Shore 60 degrees, EPDM rubber Shore 70 degrees and partial flannelette, the flannelette mainly contacts the glass surface, which is beneficial to reduce the friction between the glass and the EPDM rubber, and at the same time can improve the sealing between the sealing strip and the glass. The lip contacting the glass adopts EPDM 60-degree rubber with good resilience and low compression load, which can make the glass smoothly slide in the sealing strip and also has excellent sealing performance. The EPDM 70-degree rubber is matched with the door guide rail, which has good clamping force and ensures the rigidity of the entire guide groove. The guide groove joint 4 covers the entire door sheet metal 1, and the local linear speed is reserved with a process hole to ensure the sealing of the entire A-pillar.

[0025] The glass guide groove is made of multiple materials and is extruded to form a good sealing performance with the glass. At the same time, the injection-molded joint is used to cover the entire door sheet metal 1 in the guide groove joint 4, and the cooperation between the A-pillar guide groove body 7 and the guide rail 6 makes the entire A-pillar fully sealed. The inside of the A-pillar is matched with the foam 5, the support plate 11 and the outer decorative plate to form a second sealing, which improves the sealing reliability.

[0026] The above-described embodiments are only the preferred schemes of the present application, and do not limit the present application in any form. Other variants and modifications can be made without exceeding the technical scheme recited in the claims.

Claims

1. A frameless door A-pillar guide structure, characterized by, The door panel is provided with a door triangular panel and an outer decorative plate near the door panel near the side of the door mirror, the door triangular panel is provided with a guide groove joint, the outer decorative plate is in extrusion connection with the guide groove joint, and the outer decorative plate is provided with a foam between the outer decorative plate and the door triangular panel; the door panel is provided with a guide groove rail, and the guide groove rail is provided with an A-column guide groove body; the outer decorative plate is provided with a plurality of support plates near the side of the door panel, one of the support plates is combined with the door panel, the outer decorative plate and the guide groove rail to form a second foam cavity, and the second foam cavity is filled with foam; the guide groove rail is provided with a mounting guide groove, the mounting guide groove is provided with a protrusion, and the mounting guide groove is further provided with an inwardly-retracted edge opposite to the protrusion; the A-column guide groove body is provided with a glass guide groove, the glass guide groove is provided with a first lip and a second lip, the A-column guide groove body on the back side of the second lip is provided with a fifth lip, a sealing groove is arranged between the fifth lip and the A-column guide groove body, the sealing groove is open to the side of the inwardly-retracted edge, and the sealing groove is in extrusion sealing with the foam in the second foam cavity.

2. The frameless door A-pillar guide structure of claim 1, wherein, The guide groove joint is in extrusion connection with the door panel to form a covering groove, and the guide groove joint is provided with a plurality of guide blocks, the guide blocks are in contact with the side surface of the door panel.

3. The frameless door A-pillar guide structure of claim 1, wherein, The guide groove joint is in extrusion connection with the door panel to form a covering groove, and the guide groove joint is provided with a plurality of guide blocks, the guide blocks are in contact with the side surface of the door panel.

4. The frameless door A-pillar guide structure of claim 1, wherein, The other support plate is combined with the door panel and the outer decorative plate to form a first foam cavity, and the first foam cavity is filled with foam.

5. The frameless door A-pillar guide structure according to any one of claims 1-4, characterized in that, The glass guide groove is provided with a door glass, and the door glass is in extrusion sealing with the first lip and the second lip.

6. The frameless door A-pillar guide structure of claim 5, wherein, The A-column guide groove body is arranged in the mounting guide groove, the A-column guide groove body is provided with a third lip and a fourth lip, the mounting guide groove is formed with a retracted cavity through the protrusion and the inwardly-retracted edge, and the A-column guide groove body is in extrusion sealing with the retracted cavity through the third lip and the fourth lip.

7. The frameless door A-pillar guide structure of claim 5, wherein, The first lip and the second lip on the side of the glass guide groove near the door glass are provided with fluff.

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